LONE STAR INDUSTRIES INC
T-3, 1994-01-14
CEMENT, HYDRAULIC
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<PAGE>   1





   As filed with the Securities and Exchange Commission on January 14, 1994.
                                                        REGISTRATION NO. _______


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                           ---------------------------


                                    FORM T-3
                FOR APPLICATIONS FOR QUALIFICATION OF INDENTURES
                     UNDER THE TRUST INDENTURE ACT OF 1939


                           ---------------------------


                           LONE STAR INDUSTRIES, INC.
                              (Name of Applicant)

                            300 FIRST STAMFORD PLACE
                      Stamford, Connecticut  06912-0014
                   (Address of Principal Executive Offices)


                           ---------------------------

                       SECURITIES TO BE ISSUED UNDER THE
                           INDENTURE TO BE QUALIFIED


<TABLE>
<CAPTION>
                    Title of Class                                   Amount
                    --------------                                   ------
        <S>                                                       <C>
        10% Senior Notes Due 2003   . . . . . . . . . . .         $75,000,000
        Guarantees of 10% Senior Notes  . . . . . . . . .         $75,000,000
</TABLE>

                           ---------------------------

 The Applicant hereby amends this application for qualification on such date or
             dates as may be necessary to delay its effectiveness
     until (i) the 20th day after the filing of a further amendment which
        specifically states that it shall supersede this amendment, or
(ii) such date as the Commission, acting pursuant to Section 307(c) of the Act,
            may determine upon the written request of the obligor.

                           ---------------------------
<TABLE>
    <S>                                      <C>
    Approximate date of proposed exchange:   As soon as practicable after Confirmation of the Applicant's Plan of 
                                             Reorganization (see Item 2).

    Name and Address of Agent for Service:   John J. Martin, Esq., Senior Vice President, General Counsel and Secretary
                                             Lone Star Industries, Inc.
                                             300 First Stamford Place
                                             Stamford, Connecticut 06912-0014
</TABLE>
<PAGE>   2
                                    GENERAL

ITEM 1.  GENERAL INFORMATION

    (a)  Form of Organization.

         Corporation.

    (b)  State or other sovereign power under the laws of which organized.

         Delaware.


ITEM 2.  SECURITIES ACT EXEMPTION APPLICABLE

         State briefly the facts relied upon by the applicant as a basis for
the claim that registration of the Indenture Securities under the Securities
Act of 1933 is not required.

         Lone Star Industries, Inc. (the "Company") proposes to issue, as part
of its Modified Amended Consolidated Plan of Reorganization, dated August 24,
1993, pursuant to Section 1121(a) of the United States Bankruptcy Code (the
"Plan of Reorganization"), its 10% Senior Notes Due 2003 (the "Senior Notes")
and to guarantee (the "Guarantee") a portion of certain 10% Asset Proceeds
Notes (the "Asset Proceeds Notes") issued by Rosebud Holdings, Inc., a newly
formed wholly-owned subsidiary of the Company.  Upon a call under the
Guarantee, the Company may issue up to an aggregate $28,000,000 principal
amount of five-year notes (the "Guarantee Notes").  The Senior Notes may be
guaranteed by certain of the Company's affiliates.  Each of these securities
will be issued to discharge in part claims of existing creditors in the
Bankruptcy Proceeding described below.  The Company has filed with the United
States Bankruptcy Court for the Southern District of New York (the "Bankruptcy
Court") a Modified Amended Disclosure Statement (the "Disclosure Statement")
for the purpose of soliciting votes of holders of claims or stock interests in
the Company and certain of its affiliates for acceptance or rejection of the
Plan of Reorganization (Case Nos. 90 B 21276 to 90 B 21286, 90 B 21334 and 90 B
21335 (HS)).  At a hearing held on December 7, 1993, the Bankruptcy Court
approved the Disclosure Statement.  A copy of the Disclosure Statement, with
the Plan of Reorganization annexed thereto as an exhibit, is attached hereto as
Exhibit T3E.  The Senior Notes are to be issued under an indenture (the "Senior
Note Indenture") between the Company and a trustee to be named, preliminary
forms of which are attached hereto as Exhibit T3C.  Each of (i) the Asset
Proceeds Notes and the Guarantee and (ii) the Guarantee Notes, will be issued
under indentures separate from the one being qualified hereunder and are the
subject of separate Form T-3's being filed with the Securities and Exchange
Commission.

         The Company believes that the issuance of the Senior Notes and the
related guarantees is exempt from the registration requirements of the
Securities Act of 1933 (the "Securities Act") pursuant to Section 1145 of the
United States Bankruptcy Code.  Section 1145 exempts from the registration
requirements of the Securities Act "the offer or sale under a plan of a
security of the debtor . . . in exchange for a claim against, an interest in,
or a claim for an administrative expense in the case concerning, the debtor 
. . ."  The Company will be issuing the Senior Notes and its subsidiaries will
be granting their guarantees pursuant to the Plan of Reorganization solely in
exchange for the claims of certain existing creditors.  There will be no sales
of Senior Notes by or through an underwriter, as that term is defined in
Section 1145(b) of the Bankruptcy Code, in connection with the Plan of
Reorganization.





                                       2
<PAGE>   3
                                  AFFILIATIONS

ITEM 3.  AFFILIATES

         Furnish a list or diagram of all affiliates of the applicant and
indicate the respective percentages of voting securities or other bases of
control.

         Affiliates of the Company may be deemed to include the following as of
January 10, 1994:

         1.  Hawaiian Cement, a Hawaiian general partnership in which the
Company indirectly has a 50% interest.

         2.  Kosmos Cement Company, a Kentucky general partnership in which the
Company indirectly has a 25% interest.

         3.  Lone Star-Falcon, a Texas general partnership in which the Company
has a 50% interest.

         4.  RMC LONESTAR, a California general partnership in which the
Company indirectly has a 50% interest.

         5.  In a Schedule 13D filed by Scope Industries on January 7, 1992, it
was reported that Scope Industries and certain related persons identified
therein owned 2,539,200 shares of the Company's Common Stock, an approximate
15.3% interest.

         Based on information provided to the Company, if the exchange
contemplated by the Plan of Reorganization had occurred as of January 10, 1994,
the following might have been deemed to be Affiliates of the Company:

         In addition to the persons listed in items 1-4 to this Item 3 above,
Item 5 below lists certain persons that may own in excess of ten percent of the
Company's voting securities after the consummation of the Plan of
Reorganization.

         Attached hereto as Annex A are lists of the subsidiaries of the
Company currently existing and which are expected to exist upon the
consummation of the Plan of Reorganization.



                             MANAGEMENT AND CONTROL

ITEM 4.  DIRECTORS AND EXECUTIVE OFFICERS

         List the names and complete mailing addresses of all directors or
executive officers of the applicant and all persons chosen to become directors
or executive officers.  Indicate all offices with the applicant held or to be
held by each person named.


<TABLE>
<CAPTION>
          Name                                     Address                                Office(s)
          ----                                     -------                                ---------                    
<S>                                    <C>                                      <C>
David W. Wallace                       Lone Star Industries, Inc.               Director, Chairman of the
                                       300 First Stamford Place                 Board and Chief Executive
                                       Stamford, CT  06912-0014                 Officer

William M. Troutman                    Same                                     Director, President and Chief
                                                                                Operating Officer
</TABLE>





                                       3
<PAGE>   4

<TABLE>
<S>                                    <C>                                      <C>
John J. Martin                         Same                                     Senior Vice President, General
                                                                                Counsel and Secretary

William E. Roberts                     Same                                     Vice President, Chief
                                                                                Financial Officer and
                                                                                Corporate Controller

Roger J. Campbell                      Lone Star Industries, Inc.               Vice President
                                       3905 Vincennes Rd., Ste. 400
                                       Indianapolis, IN  46268

James T. Cleven                        Lone Star Industries, Inc.               Vice President
                                       300 First Stamford Place
                                       Stamford, CT  06912-0014

Pasquale P. Diccianni                  Lone Star Industries, Inc.               Vice President
                                       162 Old Mill Road
                                       West Nyack, NY  10994

Michael W. Puckett                     Lone Star Industries, Inc.               Vice President
                                       3905 Vincennes Rd., Ste. 400
                                       Indianapolis, IN  46268

James E. Bacon                         114 West 47th Street                     Director
                                       Sixth Floor
                                       New York, New York  10036

Theodore F. Brophy                     60 Arch Street                           Director
                                       Greenwich, CT  06830

Kenneth Y. Knight                      Sinclair Oil Corporation                 Director
                                       550 East South Temple
                                       Salt Lake City, UT  84102

Meyer Luskin                           Scope Industries                         Director
                                       233 Wilshire Blvd.
                                       Suite 310
                                       Santa Monica, CA  90401

Allen E. Puckett                       935 Corsica Drive                        Director
                                       Pacific Palisades, CA  90272

Lawrence J. Ramer                      Ramer Equities, Inc.                     Director
                                       1999 Avenue of the Stars
                                       #1090
                                       Los Angeles, CA  90067

Jack R. Wentworth                      Indiana University                       Director
                                       School of Business
                                       10th & Fee Lane
                                       Bloomington, IN  47405
</TABLE>





                                       4
<PAGE>   5
ITEM 5.  PRINCIPAL OWNERS OF VOTING SECURITIES

         Furnish the following information as to each person owning 10 percent
or more of the voting securities of the applicant.

                             AS OF JANUARY 10, 1994
<TABLE>
<CAPTION>
                                                                                               PERCENTAGE OF
                                                  TITLE OF CLASS                             VOTING SECURITIES
     NAMES AND COMPLETE MAILING ADDRESS                OWNED             AMOUNT OWNED              OWNED
     ----------------------------------           --------------         ------------        -----------------
<S>                                               <C>
See item 5 of Item 3 above.
</TABLE>




                  GIVING EFFECT TO THE PLAN OF REORGANIZATION*
<TABLE>
<CAPTION>
                                                                                               PERCENTAGE OF
                                                  TITLE OF CLASS                             VOTING SECURITIES
     NAMES AND COMPLETE MAILING ADDRESS                OWNED             AMOUNT OWNED              OWNED
     ----------------------------------           --------------         ------------        -----------------
<S>                                                <C>                     <C>                     <C>
The Trust Company of the West                      Common Stock            2,135,914               17.8%
  and affiliates
21st Floor
865 South Figueroa St.
Los Angeles, CA  90071

Metropolitan Life Insurance Company                Common Stock            1,853,361               15.4%
  and Metropolitan Insurance and
  Annuity Company
One Madison Avenue
New York, NY  10010
</TABLE>



- ----------
*   These figures are based on information provided to the Company and give
    effect to the Plan of Reorganization as if it were consummated on January
    10, 1994.


                                  UNDERWRITERS

ITEM 6.  UNDERWRITERS

         Give the name and complete mailing address of (a) each person who,
within three years prior to the date of filing the application, acted as an
underwriter of any securities of the obligor which were outstanding on the date
of filing the application, and (b) each proposed principal underwriter of the
securities proposed to be offered.  As to each person specified in (a), give
the title of each class of securities underwritten.

    (a)  None


    (b)  None





                                       5
<PAGE>   6
                               CAPITAL SECURITIES

ITEM 7.  CAPITALIZATION

    (a)  Furnish the following information as to each authorized class of
securities of the applicant.

                             AS OF JANUARY 10, 1994

<TABLE>
<CAPTION>
                          Title of Class                             Amount Authorized     Amount Outstanding
                          --------------                             -----------------     ------------------
<S>                                                                   <C>                     <C>
Common Stock, $1.00 par value per share   . . . . . . . . . . . .     25,000,000 shares       16,644,392 shares
Preferred Stock, $1.00 par value per share:                            3,500,000 shares          386,020 shares
    $13.50 Cumulative Convertible Preferred   . . . . . . . . . .        375,000 shares          375,000 shares
    $ 4.50 Cumulative Convertible Preferred   . . . . . . . . . .         11,020 shares           11,020 shares

8 3/4% Notes due 1992 . . . . . . . . . . . . . . . . . . . . . .          $150,000,000            $150,000,000
9 3/4% Promissory Notes due 1993 and 1994 . . . . . . . . . . . .           $90,000,000             $90,000,000
9 1/2% Notes due 1991 . . . . . . . . . . . . . . . . . . . . . .           $50,000,000             $50,000,000
Pollution Control, Industrial Development and
    Industrial Revenue Bonds due 1991-2008  . . . . . . . . . . .           $11,500,000              $6,365,000
</TABLE>



    (b)  Give a brief outline of the voting rights of each class of voting
securities referred to in paragraph (a) above.

<TABLE>
<CAPTION>
                                        Title of Class                       Voting Rights
                                        --------------                       -------------
                                   <S>                               <C>
                                   Common Stock                      One vote per share

                                   $13.50 Cumulative                 Right to elect two Directors
                                   Convertible Preferred

                                   $4.50 Cumulative                  Together with all other
                                   Convertible Preferred             preferred stock, right to
                                                                     elect two Directors
</TABLE>


                              INDENTURE SECURITIES

ITEM 8.  ANALYSIS OF INDENTURE*

    Insert at this point the analysis of indenture provisions required under
Section 305(a)(2) of the Act.

    (a)  Events of Default and Notice of Default

    An Event of Default occurs under the Senior Note Indenture if:  (i) the
Company defaults in the payment of interest on any Senior Note when the same
becomes due and payable, whether at maturity, in connection with any



- ----------------------------------

*   All capitalized terms used in this Item 8 shall have the same meaning,
    unless otherwise defined, as that provided in the Senior Note Indenture.

                                       6
<PAGE>   7
redemption, by acceleration or otherwise, and such default continues for a
period of 30 days; (ii) the Company defaults in the payment of the principal of
any Senior Note when the same becomes due and payable, whether at maturity, in
connection with any redemption, by acceleration or otherwise and such default
continues for a period of 30 days after the earlier of (a) the date on which
written notice of such failure, requiring the Company to remedy the same, shall
have been given to the Company by the Trustee, or to the Company and the
Trustee by the Holders of at least 25% in aggregate principal amount of the
Senior Notes at the time outstanding or (b) the date on which the Company had
Actual Knowledge of such failure; (iii) the Company or any of its Restricted
Subsidiaries fails to observe or perform in any material respect any of its
other covenants or agreements in the Senior Notes or the Senior Note Indenture
which failure continues for a period of 30 days after the earlier of (a) the
date on which written notice of such failure, requiring the Company to remedy
the same, shall have been given to the Company by the Trustee, or to the
Company and the Trustee by the Holders of at least 25% in aggregate principal
amount of the Senior Notes at the time outstanding or (b) the date on which the
Company had Actual Knowledge of such failure; (iv) (a) the Company or any of
its Restricted Subsidiaries fails to pay when due (whether at maturity, in
connection with any mandatory amortization or redemption, by acceleration or
otherwise) any principal or interest on any Indebtedness with an aggregate
outstanding principal amount in excess of $5.0 million, whether any such
Indebtedness is outstanding as of the date of the Senior Note Indenture or is
thereafter outstanding, which default continues for the greater of any period
of grace applicable thereto or 60 days from the date of such default, or (b) a
default or event of default, as defined in one or more indentures, agreements
or other instruments evidencing or under which the Company or any of its
Restricted Subsidiaries individually or collectively have, as of the date of
the Senior Note Indenture or thereafter, outstanding at least $5.0 million
aggregate principal amount of Indebtedness, shall happen and be continuing and
such Indebtedness shall have been accelerated so that it is due and payable
prior to the date on which it would otherwise have become due and payable, and
such acceleration shall not be rescinded or annulled within 60 days after the
earlier of (x) the date on which written notice of such acceleration shall have
been given to the Company by the Trustee, or to the Company and the Trustee by
the Holders of at least 25% in aggregate principal amount of the Senior Notes
at the time outstanding or (y) the date on which the Company had Actual
Knowledge of such acceleration; provided that if such default or event of
default under such indenture or other instrument shall be remedied or cured by
the Company or the Restricted Subsidiary or waived by the holders of such
Indebtedness, then the Event of Default under the Senior Note Indenture by
reason thereof shall be deemed likewise to have been thereupon remedied, cured
or waived without further action upon the part of either the Trustee or any of
the holders of Senior Notes; (v) one or more final judgments against the
Company or any of its Restricted Subsidiaries, for payments of money which in
the aggregate exceed $5.0 million, are entered by a court of competent
jurisdiction and such judgments are not rescinded, annulled, stayed or
discharged within 90 days; (vi) the Company and its Restricted Subsidiaries,
taken as a whole, become insolvent; (vii) the Company or any of its material
Restricted Subsidiaries, pursuant to or within the meaning of any Bankruptcy
Law: (a) commences a voluntary case, (b) consents to the entry of a judgment,
decree or order for relief against it in any involuntary case or proceeding,
(c) consents to the appointment of a Custodian of it or for all or
substantially all of its property, (d) makes a general assignment for the
benefit of its creditors, (e) applies for, consents to or acquiesces in the
appointment of, or taking possession by, a Custodian; (viii) a court of
competent jurisdiction enters a judgment, decree or order for relief in respect
of the Company or any of its material Restricted Subsidiaries, in an
involuntary case or proceeding under any Bankruptcy Law which shall (a) approve
as properly filed a petition seeking reorganization, arrangement, adjustment or
composition, (b) appoint a Custodian for any part of its property, or (c) order
the winding up or liquidation of its affairs, and such judgment, decree or
order remains unstayed and in effect for a period of sixty (60) consecutive
days; or (ix) any bankruptcy or insolvency petition or application is filed, or
any bankruptcy case or insolvency proceeding is commenced against, the Company
or any of its material Restricted Subsidiaries, and such petition, application,
case or proceeding is not dismissed or stayed within ninety (90) days.

    If a default occurs and is continuing and if it is known to the Trustee,
the Trustee shall mail to each holder of the Senior Notes a notice of the
default within 90 days after it occurs.  Except in the case of a default in
payment of principal of or interest on any Senior Note, the Trustee may
withhold the notice if and so long as it in good faith determines that
withholding notice is in the interests of the Holders of the Senior Notes.





                                       7
<PAGE>   8
    (b)  Authentication and Delivery of Senior Notes and Application of
Proceeds Thereof

    A Senior Note shall not be valid until authenticated by the manual or
facsimile signature of the Trustee.  The signature of the Trustee shall be
conclusive evidence that the Senior Note has been authenticated under the
Senior Note Indenture.  The Trustee may appoint an authenticating agent
acceptable to the Company to authenticate the Senior Notes.

    The Trustee shall authenticate Senior Notes for original issue in the
aggregate principal amount of up to $75,000,000 upon a written order of the
Company.  Such order shall specify the amount of Senior Notes to be
authenticated and the date on which the original issue of Senior Notes is to be
authenticated.

    The Senior Notes shall be issuable only in registered form without coupons
and only in denominations of $1,000 and integral multiples thereof.

    (c)  Release of Property Subject to Lien of Indenture

    Inapplicable.

    (d)  Satisfaction and Discharge of Indenture

    The Company may terminate all of its obligations under the Senior Note
Indenture if all Senior Notes previously authenticated and delivered (other
than mutilated, destroyed, lost or stolen Senior Notes which have been replaced
or paid) have been delivered to the Trustee for cancellation or if:  (1) the
Senior Notes mature within six months or all of them are to be called for
redemption within six months; (2) the Company irrevocably deposits in trust
with the Trustee, pursuant to an irrevocable trust and security agreement in
form and substance reasonably satisfactory to the Trustee, money or U.S.
Government Obligations sufficient to pay principal of and interest on the
Senior Notes to maturity or redemption, as the case may be, and all other sums
payable by the Company to the holders of the Senior Notes thereunder.  The
Company may make the deposit only during the six-month period.  Immediately
after making the deposit, the Company shall give notice of such event to the
holders; (3) the Company has paid or caused to be paid all sums then payable by
the Company to the Trustee thereunder as of the date of such deposit; (4) the
Company has delivered to the Trustee an Officers' Certificate stating that all
conditions precedent provided for in the Senior Note Indenture relating to the
satisfaction and discharge of the Senior Note Indenture have been complied
with; and (5) the Company has delivered to the Trustee either (i) an
unqualified Opinion of Counsel, stating that the holders of the Senior Notes
(a) will not recognize income, gain or loss for Federal income tax purposes as
a result of such deposit (and the defeasance contemplated in connection
therewith) and (b) will be subject to Federal income tax on the same amounts
and in the same manner and at the same times as would have been the case if
such deposit and defeasance had not occurred, or (ii) an applicable favorable
ruling to that effect received from or published by the Internal Revenue
Service.

    However, the Company's obligations under the Senior Note Indenture with
respect to the Registrar and Paying Agent, securityholder lists, transfers and
exchanges, replacement securities, payment on the Senior Notes, compensation,
indemnity and replacement of the Trustee, and the Trustee's obligations with
respect to repayment to the Company of excess money upon discharge of the
Senior Note Indenture shall survive until the Senior Notes are no longer
outstanding.  Thereafter, the obligations with respect to compensation and
indemnity of the Trustee and repayment to the Company of excess money shall
survive.

    After a deposit pursuant to these provisions, the Trustee upon request
shall acknowledge in writing the discharge of the Company's obligations under
the Senior Notes and the Senior Note Indenture except for those surviving
obligations specified above.





                                       8
<PAGE>   9
    In order to have money available on a payment date to pay principal or
interest on the Senior Notes, the U.S. Government Obligations shall be payable
as to principal or interest on or before such payment date in such amounts as
will provide the necessary money.

    (e)  Evidence Required to be Furnished by Obligor to Trustee

    The Company shall deliver to the Trustee within 120 days after the end of
each fiscal year of the Company, and within 60 days after the end of each of
the first three fiscal quarters of the Company, an Officer's Certificate
stating that, after a review of the activities of the Company during such
period and of the Company's performance under the Senior Note Indenture,
whether or not, to the best knowledge of the signer thereof based on such
review, there has been any Default or Event of Default by the Company in
performing any of its obligations under the Senior Note Indenture or the Senior
Notes.  If the signer does not know of any such Default or Event of Default,
the Certificate shall describe the Default or Event of Default and its status.

ITEM 9.  OTHER OBLIGORS

    Give the name and complete mailing address of any person, other than the
applicant, who is an obligor upon the indenture securities.

    It is contemplated that certain subsidiaries of the Company may be
guarantors of all the Company's obligations under the Senior Notes; information
with respect to which, if any, will be supplied by amendment.

                   CONTENTS OF APPLICATION FOR QUALIFICATION

This application for qualification comprises:

  (a)    Pages numbered 1 to 10, consecutively;

  (b)    Annex A consisting of two pages;

  (c)    The Statement of Eligibility and Qualification on Form T-1 -- to be
  filed by amendment under separate cover; and

  (d)    the following exhibits in addition to those filed as a part of the
  Statement of Eligibility and Qualification of the Trustee:

<TABLE>
  <S>            <C>
  Exhibit T3A.   Amended and Restated Certificate of Incorporation of the Company, incorporated by reference to Exhibit 19 to the
                 Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 1988.  The Certificate of Incorporation will
                 be amended in connection with the Plan of Reorganization.  The form of Amended and Restated Certificate of
                 Incorporation of the Company is attached as Exhibit H to the Disclosure Statement (Exhibit T3E).

  Exhibit T3B.   Amended By-Laws of the Company, incorporated by reference to Exhibit 2 to the Company's Report on Form 8-K, August
                 20, 1992.  The By-Laws will be amended in connection with the Plan of Reorganization.  The form of Restated By-Laws
                 of the Company is attached as Exhibit I to the Disclosure Statement (Exhibit T3E).

  Exhibit T3C.   Form of the Senior Note Indenture between the Company and a trustee to be named.

  Exhibit T3D.   Not applicable.
</TABLE>





                                       9
<PAGE>   10
<TABLE>
  <S>            <C>
  Exhibit T3E.   A copy of the Disclosure Statement regarding the Plan of Reorganization, with certain exhibits thereto.

  Exhibit T3F.   A cross reference sheet showing the location in the Senior Note Indenture of the provisions inserted therein
                 pursuant to Sections 310 through 318(a), inclusive, of the Trust Indenture Act of 1939, included in Exhibit T3C.
</TABLE>




                                   SIGNATURE


    Pursuant to the requirements of the Trust Indenture Act of 1939, the
applicant, Lone Star Industries, Inc., a corporation organized and existing
under the laws of Delaware, has duly caused this application to be signed on
its behalf by the undersigned, thereunto duly authorized, and its seal to be
hereunto affixed and attested all in The City of New York, and State of New
York, on the 14th day of January, 1994.

[Seal]




<TABLE>
<S>                          <C>
                             LONE STAR INDUSTRIES, INC.
                
                
                             By  /s/ John J. Martin                                           
                                 ---------------------------------------
                                 Name:   John J. Martin
                                 Title:  Senior Vice President, General 
                                         Counsel and Secretary
                
                
                
                
                
Attest:                      By  /s/ John S. Johnson                                          
                                 ---------------------------------------
                                 Name:   John S. Johnson
                                 Title:  Assistant Secretary
</TABLE>        





                                       10
<PAGE>   11
                                                                         ANNEX A


                    LONE STAR INDUSTRIES, INC. SUBSIDIARIES
                   (Wholly owned unless otherwise indicated;
                   indentation indicates level of ownership)



<TABLE>
<CAPTION>
                                                                                    Jurisdiction of
    Name                                                                            Incorporation 
    ----                                                                            --------------
<S>                                                                                 <C>
Lone Star Industries, Inc.                                                          Delaware

  Coastline Petroleum Company, Inc.                                                 Texas

  Construction Aggregates Limited                                                   Nova Scotia

  Construction Materials Co.                                                        Delaware

  DeSoto Redi-Mix Corporation                                                       Mississippi

  Diamond Building Materials, Inc.                                                  California

  I.C. Materials, Inc.                                                              Illinois

  KCOR CORPORATION (20% owned by Lone Star                                          Delaware
  Industries, Inc.; 80% owned by Lone Star
  Hawaii Cement Corporation)

  Lone Star Building Centers, Inc.                                                  Minnesota

    Lone Star Building Centers (Eastern) Inc.                                       Delaware

    G. M. Stewart Lumber Company, Inc.                                              Minnesota

  Lone Star California, Inc.                                                        Delaware

  Lone Star Cement Inc. (99% ownership)                                             New Jersey

  Lonestar Florida Pensucco, Inc.                                                   Delaware

    Lonestar Florida Holding, Inc.                                                  Delaware

      Lonestar Florida Cement, Inc.                                                 Delaware

      Lone Star Hawaii, Inc.                                                        Delaware

        Lone Star Hawaii Cement Corporation                                         Hawaii

        Lone Star Hawaii Properties, Inc.                                           Hawaii

  Lone Star Prestress Concrete, Inc.                                                Texas

  Lone Star Properties, Inc.                                                        Delaware
</TABLE>
<PAGE>   12
<TABLE>
<CAPTION>
                                                                                    Jurisdiction of
    Name                                                                            Incorporation 
    ----                                                                            --------------

                    LONE STAR INDUSTRIES, INC. SUBSIDIARIES
                100% OWNERSHIP UNLESS OTHERWISE NOTED (CONT'D.)


  <S>                                                                               <C>
  Lone Star Transportation Corp.                                                    Delaware

  Lone Star Wyoming, Inc.                                                           Delaware

  New York Trap Rock Corporation                                                    Delaware

    Cornell Steamboat Company                                                       New York

    Gotham Suffolk Stone Corporation                                                New York

    NYTR Transportation Corp                                                        Delaware

  Plastibeton Canada Inc.                                                           Canada

  Rosebud Holdings, Inc.*                                                           Delaware

    KCOR CORPORATION*                                                               Delaware

        Las Colinas Corporation*                                                    Delaware

    Lone Star California, Inc.*                                                     Delaware

    Rosebud Real Properties, Inc.*                                                  Delaware

    Santa Cruz Corporation*                                                         Delaware

    Nazareth Cement Corporation*                                                    Delaware

  San-Vel Concrete Corporation                                                      Kansas

  Southern Aggregates, Inc.                                                         Mississippi

  Utah Portland Quarries, Inc.                                                      Utah

</TABLE>





- ----------------------------------
* Information with respect to these corporations located here is given
  effective after the consummation of the Plan of Reorganization.

                                      A-2
<PAGE>   13
                                EXHIBIT INDEX

<TABLE>
  <S>            <C>
  Exhibit T3A.   Amended and Restated Certificate of Incorporation of the Company, incorporated by reference to Exhibit 19 to the
                 Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 1988.  The Certificate of Incorporation will
                 be amended in connection with the Plan of Reorganization.  The form of Amended and Restated Certificate of
                 Incorporation of the Company is attached as Exhibit H to the Disclosure Statement (Exhibit T3E).

  Exhibit T3B.   Amended By-Laws of the Company, incorporated by reference to Exhibit 2 to the Company's Report on Form 8-K, August
                 20, 1992.  The By-Laws will be amended in connection with the Plan of Reorganization.  The form of Restated By-Laws
                 of the Company is attached as Exhibit I to the Disclosure Statement (Exhibit T3E).

  Exhibit T3C.   Form of the Senior Note Indenture between the Company and a trustee to be named.

  Exhibit T3D.   Not applicable.

  Exhibit T3E.   A copy of the Disclosure Statement regarding the Plan of Reorganization, with certain exhibits thereto.

  Exhibit T3F.   A cross reference sheet showing the location in the Senior Note Indenture of the provisions inserted therein
                 pursuant to Sections 310 through 318(a), inclusive, of the Trust Indenture Act of 1939, included in Exhibit T3C.
</TABLE>





<PAGE>   1

                                                                 EXHIBIT T3C

- -----------------------------------------------------------------------------



                           LONE STAR INDUSTRIES, INC.

                                      AND

                               ------------ Bank

                                       as

                                    Trustee

                             ---------------------

                                   Indenture

                         Dated as of ------------, 1993

                             ---------------------

                                  $75,000,000

                           10% SENIOR NOTES DUE 2003


- ----------------------------------------------------------------------------

<PAGE>   2
                               TABLE OF CONTENTS

<TABLE>
<S>                                                                                           <C>
ARTICLE 1.            DEFINITIONS AND INCORPORATION BY REFERENCE  . . . . . . . . . . . . . .   1
                                                                                           
         SECTION 1.01 Definitions   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
         SECTION 1.02 Incorporation by Reference of Trust Indenture Act   . . . . . . . . . .  10
         SECTION 1.03 Rules of Construction   . . . . . . . . . . . . . . . . . . . . . . . .  11
                                                                                           
ARTICLE 2.            THE SECURITIES  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
                                                                                           
         SECTION 2.01 Form and Dating   . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
         SECTION 2.02 Execution and Authentication  . . . . . . . . . . . . . . . . . . . . .  11
         SECTION 2.03 Registrar and Paying Agent  . . . . . . . . . . . . . . . . . . . . . .  12
         SECTION 2.04 Paying Agent to Hold Money in Trust   . . . . . . . . . . . . . . . . .  12
         SECTION 2.05 Securityholder Lists  . . . . . . . . . . . . . . . . . . . . . . . . .  13
         SECTION 2.06 Transfer and Exchange   . . . . . . . . . . . . . . . . . . . . . . . .  13
         SECTION 2.07 Replacement Securities  . . . . . . . . . . . . . . . . . . . . . . . .  13
         SECTION 2.08 Outstanding Securities  . . . . . . . . . . . . . . . . . . . . . . . .  14
         SECTION 2.09 Securities Held by the Company or an Affiliate  . . . . . . . . . . . .  14
         SECTION 2.10 Temporary Securities  . . . . . . . . . . . . . . . . . . . . . . . . .  14
         SECTION 2.11 Cancellation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
         SECTION 2.12 Defaulted Interest  . . . . . . . . . . . . . . . . . . . . . . . . . .  15
                                                                                           
ARTICLE 3.            REDEMPTION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
                                                                                           
         SECTION 3.01 Notices to Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . .  15
         SECTION 3.02 Selection of Securities to be Redeemed  . . . . . . . . . . . . . . . .  15
         SECTION 3.03 Notice of Redemption  . . . . . . . . . . . . . . . . . . . . . . . . .  16
         SECTION 3.04 Effect of Notice of Redemption  . . . . . . . . . . . . . . . . . . . .  16
         SECTION 3.05 Deposit of Redemption Price   . . . . . . . . . . . . . . . . . . . . .  17
         SECTION 3.06 Securities Redeemed in Part   . . . . . . . . . . . . . . . . . . . . .  17
         SECTION 3.07 Optional Redemption   . . . . . . . . . . . . . . . . . . . . . . . . .  17
         SECTION 3.08 Mandatory Redemption Upon Sale of Assets  . . . . . . . . . . . . . . .  17
         SECTION 3.09 Sinking Fund Payments   . . . . . . . . . . . . . . . . . . . . . . . .  18
                                                                                           
ARTICLE 4.            COVENANTS   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
                                                                                           
         SECTION 4.01 Payment of Securities.  . . . . . . . . . . . . . . . . . . . . . . . .  18
         SECTION 4.02 Maintenance of Office or Agency   . . . . . . . . . . . . . . . . . . .  18
         SECTION 4.03 Corporate Existence   . . . . . . . . . . . . . . . . . . . . . . . . .  19
         SECTION 4.04 Payment of Taxes  . . . . . . . . . . . . . . . . . . . . . . . . . . .  19
         SECTION 4.05 Maintenance of Properties   . . . . . . . . . . . . . . . . . . . . . .  19
         SECTION 4.06 SEC Reports   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20
         SECTION 4.07 Compliance Certificate  . . . . . . . . . . . . . . . . . . . . . . . .  20
         SECTION 4.08 Restricted Investments and Restricted Stock Payments  . . . . . . . . .  20
</TABLE>
        




                                       i
<PAGE>   3
<TABLE>
<S>      <C>                                                                                 
         SECTION 4.09 Transactions with Affiliates  . . . . . . . . . . . . . . . . . . . . .  23
         SECTION 4.10 Limitation on Total Borrowed Funds and Liens  . . . . . . . . . . . . .  24
         SECTION 4.11 Conflicting Agreements  . . . . . . . . . . . . . . . . . . . . . . . .  25
         SECTION 4.12 Limitation on Dividends and Certain Other Restrictions Affecting       
                                  Subsidiaries  . . . . . . . . . . . . . . . . . . . . . . .  25
         SECTION 4.13 Limitation on Restricted Subsidiary Indebtedness  . . . . . . . . . . .  25
         SECTION 4.14 Restricted Subsidiaries   . . . . . . . . . . . . . . . . . . . . . . .  26
         SECTION 4.15 Waiver of Stay, Extension or Usury Laws   . . . . . . . . . . . . . . .  27
         SECTION 4.16 Maintenance of Insurance and Records,                                  
                                  Compliance with Law . . . . . . . . . . . . . . . . . . . .  27
         SECTION 4.17 Limitation on Redemption of Certain Permitted                          
                                  Subordinated Indebtedness . . . . . . . . . . . . . . . . .  28
         SECTION 4.18 Value of Claims Represented by Securities   . . . . . . . . . . . . . .  28
         SECTION 4.19 Investment Company Act of 1940  . . . . . . . . . . . . . . . . . . . .  28
         SECTION 4.20 Notice of Default   . . . . . . . . . . . . . . . . . . . . . . . . . .  28
                                                                                             
ARTICLE 5.            SUCCESSORS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
                                                                                             
         SECTION 5.01 When Company May Merge, Etc   . . . . . . . . . . . . . . . . . . . . .  29
         SECTION 5.02 Successor Substituted   . . . . . . . . . . . . . . . . . . . . . . . .  29
                                                                                             
ARTICLE 6.            DEFAULTS AND REMEDIES   . . . . . . . . . . . . . . . . . . . . . . . .  30
                                                                                             
         SECTION 6.01 Events of Default   . . . . . . . . . . . . . . . . . . . . . . . . . .  30
         SECTION 6.02 Acceleration  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32
         SECTION 6.03 Other Remedies  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32
         SECTION 6.04 Waiver of Past Defaults   . . . . . . . . . . . . . . . . . . . . . . .  33
         SECTION 6.05 Control by Majority   . . . . . . . . . . . . . . . . . . . . . . . . .  33
         SECTION 6.06 Limitation on Suits   . . . . . . . . . . . . . . . . . . . . . . . . .  33
         SECTION 6.07 Rights of Holders to Receive Payment  . . . . . . . . . . . . . . . . .  34
         SECTION 6.08 Collection Suit by Trustee  . . . . . . . . . . . . . . . . . . . . . .  34
         SECTION 6.09 Trustee May File Proofs of Claims   . . . . . . . . . . . . . . . . . .  34
         SECTION 6.10 Priorities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34
         SECTION 6.11 Undertaking for Costs   . . . . . . . . . . . . . . . . . . . . . . . .  35
                                                                                             
ARTICLE 7.            TRUSTEE   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
                                                                                             
         SECTION 7.01 Acceptance of Trusts; Duties of Trustee   . . . . . . . . . . . . . . .  35
         SECTION 7.02 Rights of Trustee   . . . . . . . . . . . . . . . . . . . . . . . . . .  37
         SECTION 7.03 Individual Rights of Trustee  . . . . . . . . . . . . . . . . . . . . .  37
         SECTION 7.04 Trustee's Disclaimer  . . . . . . . . . . . . . . . . . . . . . . . . .  37
         SECTION 7.05 Notice of Defaults  . . . . . . . . . . . . . . . . . . . . . . . . . .  37
         SECTION 7.06 Reports by Trustee to Holders   . . . . . . . . . . . . . . . . . . . .  37
         SECTION 7.07 Compensation and Indemnity  . . . . . . . . . . . . . . . . . . . . . .  38
         SECTION 7.08 Replacement of Trustee  . . . . . . . . . . . . . . . . . . . . . . . .  38
</TABLE> 
         
         
         
         
         
                                       ii
<PAGE>   4
<TABLE>
<S>      <C>                                                                                   <C>
         SECTION 7.09 Successor Trustee by Merger, etc  . . . . . . . . . . . . . . . . . . .  39
         SECTION 7.10 Eligibility; Disqualification   . . . . . . . . . . . . . . . . . . . .  39
         SECTION 7.11 Preferential Collection of Claims Against Company   . . . . . . . . . .  40
                                                                                             
ARTICLE 8.            DISCHARGE OF INDENTURE  . . . . . . . . . . . . . . . . . . . . . . . .  40
                                                                                             
         SECTION 8.01 Termination of Company's and Guarantors' Obligations  . . . . . . . . .  40
         SECTION 8.02 Application of Trust Money  . . . . . . . . . . . . . . . . . . . . . .  41
         SECTION 8.03 Repayment to Company or Guarantors  . . . . . . . . . . . . . . . . . .  41
         SECTION 8.04 Reinstatement   . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
                                                                                             
ARTICLE 9.            AMENDMENTS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
                                                                                             
         SECTION 9.01 Without Consent of Holders  . . . . . . . . . . . . . . . . . . . . . .  42
         SECTION 9.02 With Consent of Holders   . . . . . . . . . . . . . . . . . . . . . . .  42
         SECTION 9.03 Compliance with Trust Indenture Act   . . . . . . . . . . . . . . . . .  43
         SECTION 9.04 Revocation and Effect of Consents   . . . . . . . . . . . . . . . . . .  43
         SECTION 9.05 Notation on or Exchange of Securities   . . . . . . . . . . . . . . . .  44
         SECTION 9.06 Trustee Protected   . . . . . . . . . . . . . . . . . . . . . . . . . .  44
                                                                                             
ARTICLE 10.           GUARANTEE   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44
                                                                                             
         SECTION 10.01 Guarantee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44
         SECTION 10.02 Further Assurances . . . . . . . . . . . . . . . . . . . . . . . . . .  45
         SECTION 10.03 Authorization of Actions to be Taken by the Trustee 
                                Under the Guarantee . . . . . . . . . . . . . . . . . . . . .  45
         SECTION 10.04 Authorization of Receipt of Funds by the Trustee 
                                Under the Guarantee . . . . . . . . . . . . . . . . . . . . .  46
         SECTION 10.05 Termination of Guarantee   . . . . . . . . . . . . . . . . . . . . . .  46
         SECTION 10.06 Execution of Guarantee   . . . . . . . . . . . . . . . . . . . . . . .  46
                                                                                  
ARTICLE 11.           MISCELLANEOUS   . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
                                                                                             
         SECTION 11.01 Trust Indenture Act Controls . . . . . . . . . . . . . . . . . . . . .  47
         SECTION 11.02 Notices  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
         SECTION 11.03 Communication by Holders with Other Holders  . . . . . . . . . . . . .  48
         SECTION 11.04 Action by Securityholders    . . . . . . . . . . . . . . . . . . . . .  48
         SECTION 11.05 Proof of Execution of Instruments and of Holding of Securities . . . .  48
         SECTION 11.06 Revocation of Consents; Future Holders Bound   . . . . . . . . . . . .  49
         SECTION 11.07 Obligation to Disclose Beneficial Ownership of Securities  . . . . . .  49
         SECTION 11.08 Certificate and Opinion as to Conditions Precedent   . . . . . . . . .  49
         SECTION 11.09 Statements Required in Certificate or Opinion  . . . . . . . . . . . .  50
         SECTION 11.10 Rules by Trustee and Agents  . . . . . . . . . . . . . . . . . . . . .  50
</TABLE>       
               
               



                                      iii
<PAGE>   5
<TABLE>
<S>      <C>                                                                                <C>
         SECTION 11.11 Legal Holidays  . . . . . . . . . . . . . . . . . . . . . . . . . .  50
         SECTION 11.12 No Recourse Against Others  . . . . . . . . . . . . . . . . . . . .  51
         SECTION 11.13 Duplicate Originals . . . . . . . . . . . . . . . . . . . . . . . .  51
         SECTION 11.14 Governing Law . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
         SECTION 11.15 No Adverse Interpretation of Other Agreements . . . . . . . . . . .  51
         SECTION 11.16 Successors  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
         SECTION 11.17 Separability  . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
         SECTION 11.18 Table of Contents, Headings, etc. . . . . . . . . . . . . . . . . .  51
                                                                                         
ARTICLE 12.            MEETINGS OF HOLDERS OF SECURITIES . . . . . . . . . . . . . . . . .  52
                                                                                           
         SECTION 12.01 Purposes of Meetings  . . . . . . . . . . . . . . . . . . . . . . .  52
         SECTION 12.02 Call of Meetings by Trustee.  . . . . . . . . . . . . . . . . . . .  52
         SECTION 12.03 Call of Meetings by Company or Security Holders . . . . . . . . . .  52
         SECTION 12.04 Persons Entitled to Vote at Meeting . . . . . . . . . . . . . . . .  53
         SECTION 12.05 Regulations for Meeting.  . . . . . . . . . . . . . . . . . . . . .  53
</TABLE>              
                      
                      
                      
                      

                                       iv
<PAGE>   6
                             CROSS-REFERENCE TABLE
<TABLE>
<CAPTION>
  TIA                                                                                      Indenture
Section                                                                                     Section 
- -------                                                                                    ---------
<S>                                                                                     <C>
310 (a)(1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.10
    (a)(2)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.10
    (a)(3)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
    (a)(4)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
    (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.08; 7.10
    (c)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
311 (a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.11
    (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.11
    (c)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
312 (a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            2.05
    (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .           11.03
    (c)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .           11.03
313 (a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.06
    (b)(1)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.06
    (b)(2)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.06
    (c)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.06
    (d)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.06
314 (a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            4.06; 4.07
    (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .           10.02
    (c)(1)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .           11.08
    (c)(2)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .           11.08
    (c)(3)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
    (d)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .           10.02
    (e)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .           11.09
    (f)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
315 (a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.01
    (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.05
    (c)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.01
    (d)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7.01
    (e)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            6.11
316 (a)(last sentence). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            2.09
    (a)(1)(A)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            6.05
    (a)(1)(B)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            6.04
    (a)(2)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
    (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            6.07
317 (a)(1)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            6.08
    (a)(2)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            6.09
    (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            2.04
318 (a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .           11.01
- -----------------------                                                                            
This cross-reference tables does not constitute a part of the Indenture.
</TABLE>
<PAGE>   7
                 INDENTURE dated as of ------------, 1993 between LONE STAR
INDUSTRIES, INC., a Delaware corporation (the "Company"), the subsidiaries of
the Company who are signatories hereto, as guarantors (the "Guarantors"), and
- -------- Bank, a national banking association (the "Trustee").

                 Each party agrees as follows for the benefit of the other
party and for the equal and ratable benefit of the Holders of the Company's 10%
Senior Notes due 2003 (the "Securities").


                                   ARTICLE 1.

                   DEFINITIONS AND INCORPORATION BY REFERENCE

SECTION 1.01     DEFINITIONS.

                 "Actual Knowledge" has the meaning assigned to such term in
Section 6.01 hereof.

                 "Affiliate" means any Person directly or indirectly
controlling or controlled by or under common control with the Company or any
Guarantor, as the case may be; provided, however, that the term Affiliate, with
respect to the Company, shall not include any Subsidiary of the Company.  For
this purpose, "control" means possession, directly or indirectly, of the power
to direct or cause the direction of the management or policies of a Person,
whether through the ownership of voting securities, by contract or otherwise.

                 "Agent" means any Registrar, Paying Agent or Co-Registrar.

                 "Bankruptcy Law" has the meaning assigned to such term in
Section 6.01 hereof.

                 "Board of Directors" means the Board of Directors of any
Person or any committee of the Board authorized to act for it hereunder.

                 "Business Day" has the meaning assigned to such term in
Section 11.11 hereof.

                 "Capitalized Lease" means, at the time any determination
thereof is to be made, any lease of property, real or personal, in respect of
which the present value of the minimum rental commitment would be capitalized
on a balance sheet of the lessee in accordance with generally accepted
accounting principles.

                 "Capitalized Rent" under any Capitalized Lease shall mean, at
any time as of which the amount thereof is to be determined, the lesser of (i)
10 times the amount of the maximum net rent payable under such lease during any
period of 12 consecutive months 
<PAGE>   8

subsequent to the date as of which the rental obligation is to be determined,
or (ii) the aggregate amount of net rent payable over the remaining period of
the lease.  The net rent payable under any lease for any period shall be the
total amount of the rent payable by the lessee with respect to such period but
shall not include amounts required to be paid on account of maintenance and
repairs, insurance, taxes, assessments, water rates and similar charges.  The
amount to be included in net rent for any given period with respect to any
portion thereof which may be a variable shall be such amount as the Company
shall in good faith determine is reasonably to be expected to be due as a
result of such variable.  The remaining period of any lease shall be the period
from the date of determination to the earlier of the expiration of the lease by
its terms or the date on which the lessee has a right to terminate the lease,
provided that if payments are required to be made by the lessee in connection
with the termination of such lease, the amount of such payments shall be deemed
to be net rent.

                 "Capital Stock" means any stock of any class of a corporation.

                 "Common Stock" means the common stock, par value $1.00 per
share, of the Company or any security into which the common stock may be
converted.

                 "Company" means the party named as such above until a
successor replaces it pursuant to the applicable provision hereof, and
thereafter means such successor.

                 "Computation Date" shall have the meaning assigned to such 
term in Section 4.08 hereof.

                 "Consolidated Net Income" means net income of the Company and
its Restricted Subsidiaries, all as consolidated and determined in accordance
with generally accepted accounting principles; provided, however, that (i)
there shall not be included in Consolidated Net Income any undistributed
earnings of an Unrestricted Subsidiary, and (ii) in case an Unrestricted
Subsidiary shall be designated as a Restricted Subsidiary, the net income of
such Subsidiary for the period commencing [December 31, 1993] or the date such
Subsidiary became a Restricted Subsidiary, whichever is later, shall be
included in the consolidation in so determining Consolidated Net Income.

                 "Consolidated Retained Earnings" shall mean the Retained
Earnings of the Company and its Restricted Subsidiaries, determined on a
consolidated basis in accordance with generally accepted accounting principles;
provided, however, that there shall not be included in Consolidated Retained
Earnings any undistributed earnings of an Unrestricted Subsidiary.

                 "Corporate Trust Office of the Trustee" shall be at the
address of the Trustee specified in Section 11.02 or such other address as the
Trustee may give notice of to the Company.





                                       2
                     
<PAGE>   9
                 "Custodian" has the meaning assigned to such term in Section 
6.01 hereof.

                 "Default" means any event which is, or after notice or passage
of time or both would be, an Event of Default.

                 "Effective Date" has the meaning assigned in the Plan of 
Reorganization.

                 "Event of Default" has the meaning assigned to such term in
Section 6.01 hereof.

                 "Exchange Act" means the Securities Exchange Act of 1934, as
amended, and the rules and regulations of the SEC promulgated thereunder.

                 "Excepted Lease" shall mean (i) any lease expiring not later
than the third anniversary of its inception, (ii) any lease of, or of space in,
any office building or storage facility, (iii) any lease of real property upon
which any office building or storage facility is or is to be constructed, (iv)
any lease existing on the Effective Date and renewals or extensions thereof and
(v) any lease from the Company or any Restricted Subsidiary to the Company or
any Restricted Subsidiary.

                 "Fair Value" means fair market value as determined in good
faith by the Board of Directors of the Company.

                 "Guarantee" means the Guarantee made for the benefit of the
Securityholders by the Guarantors set forth in Article 10 hereof.

                 "Guarantor" means each of the parties named as such in this
Indenture.

                 "GAAP" means generally accepted accounting principles in 
effect from time to time.

                 "Holder" or "Securityholder" means a Person in whose name a
Security is registered on the Registrar's books.

                 "Indebtedness" of any Person shall mean, without duplication,
(a) all indebtedness for money borrowed, created, incurred or assumed by such
Person or guaranteed by such Person or for which it is otherwise liable or
responsible (such as by agreement to purchase indebtedness of others), (b) all
amounts owing by such Person under Purchase Money Indebtedness or other
purchase money liens or conditional sales or other title retention agreements,
(c) all indebtedness secured by any mortgage, pledge or other lien or
encumbrance upon property owned by such Person, even though such Person has not
assumed or become liable for the payment of such indebtedness, and (d) all
Capitalized Rent for all rental obligations on any Capitalized Lease for real
property (other than Excepted





                                       3
<PAGE>   10
Leases); provided, however, that in determining the Indebtedness of any Person,
there shall be excluded (i) any obligations arising from Production Payment
Transactions, (ii) in the case of the Company, the Guarantee Agreement dated of
even date herewith between the Company, and --------- Bank, as Trustee, and the
obligation on any Notes hereafter issued thereunder and (iii) any particular
indebtedness if, upon or prior to the maturity thereof, there shall have been
deposited with the proper depository in trust money (or evidences of such
indebtedness if permitted by the instrument creating such indebtedness) in the
necessary amount to pay, redeem or satisfy such indebtedness, and thereafter
such money and evidences of indebtedness so deposited shall not be included in
any computation of the assets of such Person.

                 "Indenture" means this Indenture as amended from time to time.

                 "Legal Holiday" has the meaning assigned to such term in
Section 11.11 hereof.

                 "Lien" means, with respect to any asset, any mortgage, lien,
pledge, charge, security interest or similar encumbrance in respect of such
asset, whether or not filed, recorded or otherwise perfected under applicable
law (including any conditional sale or other title retention agreement, any
Capitalized Lease in the nature thereof, and any filing of or agreement to give
any financing statement under the Uniform Commercial Code or equivalent
statutes of any jurisdiction other than an information filing), but does not
include, in the case of the Company and its Restricted Subsidiaries, the lien
granted to the Trustee under Section 7.07 hereof.

                 "Maturity Date" of the Securities means July 31, 2003.

                 "Net Proceeds" with respect to any Sale of Assets, means the
cash (in U.S. dollars or currency freely convertible into U.S. dollars)
received by the Company or any of its Restricted Subsidiaries from such Sale of
Assets after (i) provision for all income or other taxes measured by or
resulting from such sale or other disposition or the transfer of the proceeds
thereof to the Company that are payable by the Company or any of its
Subsidiaries, (as reasonably and in good faith estimated by the Chief Financial
Officer of the Company or such Subsidiary), (ii) payment of all brokerage
commissions, legal and accounting fees and expenses and other fees and expenses
related to such sale or other disposition, (iii) deduction of any amounts
received by any Subsidiary that are not legally available for direct or
indirect distribution or loan to the Company, (iv) deduction of any amounts
required to be paid to the lender pursuant to any Permitted Working Capital
Loans upon such Sale of Assets, (v) deduction of amounts provided by the
Company or its Subsidiaries as a reserve on its regularly prepared balance
sheets, in accordance with generally accepted accounting principles
consistently applied (including, without limitation, subject to the next
succeeding sentence, all amounts escrowed, pledged or otherwise set aside to
assume payment of such liabilities), against any liabilities associated with
the assets sold in such Sale of Assets and retained by the Company or its
Subsidiaries, including, without limitation, pension and other postemployment
benefit liabilities and liabilities related to environmental matters, or
against





                                       4
<PAGE>   11
any indemnification obligations associated with the sale or other disposition,
(vi) deduction of amounts set aside in good faith for the acquisition or
improvement of assets as contemplated by clause (vii) of the definition of
"Sale of Assets," and (vii) deduction of any amounts required to discharge any
Liens on the assets sold, leased, conveyed or otherwise disposed of.  Net
Proceeds (i) shall not include any proceeds from the sale of [------------]
pursuant to the Plan of Reorganization, but (ii) shall include, when received
in cash, any Net Proceeds from the sale or other disposition of any non-cash
proceeds received by the Company or any of its Subsidiaries from a Sale of
Assets and (iii) shall include, when received in cash, any Net Proceeds
released from escrow, pledge or other set aside and amounts no longer reserved
or appropriate to be set aside as described in clauses (v) or (vi),
respectively, of the immediately preceding sentence.

                 "Officer" means the Chairman of the Board, the President, any
Senior Vice-President, Executive Vice-President or any other Vice-President,
the Treasurer or the Secretary of the Company or a Guarantor, as the case may
be.

                 "Officer's Certificate" means a certificate signed by any
Officer of the Company or a Guarantor, as the case may be.

                 "Opinion of Counsel" means a written opinion from legal
counsel, who may be an employee of or counsel for the Company or a Guarantor or
other counsel reasonably acceptable to the Trustee.

                 "Paying Agent" has the meaning assigned to such term in
Section 2.03 hereof.

                 "Permitted Acquisitions" means acquisitions approved by the
Board of Directors of the Company (including by way of merger or consolidation)
of all or substantially all of the stock or assets of any Person or any
division or line of business, provided that neither the Company nor any
Subsidiary of the Company (other than the acquired Person and its Subsidiaries)
has any liability, contingent or otherwise, for the payment of any deferred
portion of the purchase price therefor, other than Purchase Money Indebtedness,
or for any Indebtedness, obligation or liability, contingent or otherwise, of
the acquired Person, division or line of business other than any such
liability, contingent or otherwise, which, the Company could incur without
violation of this Agreement.

                 "Permitted Liens" means (i) Liens which may be granted from
time to time to secure and/or maintain Permitted Working Capital Loans; (ii)
Liens provided for in the Plan of Reorganization or existing on the Effective
Date or thereafter created to replace such Liens; (iii) Liens in favor of the
Trustee on all property and funds held or collected by the Trustee as security
for the performance by the Company of its obligations of payment to, and
reimbursement and indemnification of, the Trustee for its services under the
Indenture; (iv) Liens for taxes or assessments and similar charges, or imposed
in connection with litigation or asserted claims, either not delinquent or
contested in good faith by appropriate proceedings and as to which the Company
or a Subsidiary shall have set aside on its books such reserves as it deems
adequate; (v) Liens incurred, or pledges and deposits made, in





                                       5
<PAGE>   12
connection with workers' compensation, unemployment insurance and other social
security benefits, or securing the performance of leases, contracts (other than
for the repayment of borrowed money), statutory obligations, progress payments,
surety and appeal bonds and other obligations of like nature, but only to the
extent any of the foregoing are incurred in good faith in the ordinary course
of business; (vi) Liens imposed by law, such as mechanics', carriers',
warehousemen's, materialmen's and vendors' Liens, incurred in good faith in the
ordinary course of business; (vii) zoning restrictions, easements, licenses,
covenants, reservations, restrictions on the use of real property or
irregularities of title incident thereto that do not in the aggregate
materially detract from the value of the property or assets of the Company or
any of its Subsidiaries, as the case may be, or materially impair the use of
such property in the operation of the Company's or any Subsidiary's business;
(viii) Liens created by Subsidiaries of the Company to secure Indebtedness of
such Subsidiaries to the Company or to other Subsidiaries thereof; (ix) any
Lien on any asset acquired pursuant to any Permitted Acquisition or on the
Capital Stock or other securities of any Unrestricted Subsidiary or any asset
(including the stock of any Subsidiary thereof) of any Unrestricted Subsidiary;
(x) Liens on assets acquired in connection with the incurrence of Purchase
Money Indebtedness; (xi) Liens granted in connection with the incurrence of
Refinancing Indebtedness; (xii) Liens in favor of the Pension Benefits Guaranty
Corporation or otherwise arising out of or in connection with any employee
benefit plans; (xiii) Liens incurred in connection with any Production Payment
Transaction; (xiv) any other Liens securing obligations not exceeding, in the
aggregate, $1.5 million; or (xv) any Liens incurred in connection with West
Nyack Indebtedness.

                 "Permitted Subordinated Indebtedness" means unsecured
Indebtedness incurred by the Company or any Restricted Subsidiary provided (i)
no payment of principal thereon is made or required to be made on or before the
Maturity Date, (ii) no payment of principal or interest is made during the
continuance of an Event of Default, and (iii) at the time of incurrence thereof
there is no outstanding Default or Event of Default.

                 "Permitted Working Capital Loans" means loans (or contingent
liability with respect to letters of credit) under committed revolving credit,
working capital or letter of credit facilities which may or may not be secured
by a lien on inventory and/or Receivables that the Company or any Restricted
Subsidiary of the Company may have from time to time, to the extent that the
aggregate principal amount of all such Indebtedness outstanding under all such
facilities at any time does not exceed the value of the inventory and
Receivables on the books of the Company and its Subsidiaries, taken as a whole.

                 "Person" means any individual, corporation, partnership, joint
venture, association, joint-stock company, trust, unincorporated organization,
or government or any agency or political subdivision thereof.

                 "Plan of Reorganization" means the Company's Amended
Consolidated Plan of Reorganization, as amended from time to time.





                                       6
<PAGE>   13
                 "Preferred Stock", as applied to the stock of any Person,
shall mean any class of stock of such Person which has a preference in respect
of dividends of such Person or other distribution of assets, or in respect of
amounts payable in the event of any voluntary or involuntary liquidation,
dissolution and winding up of such Person, over any other class of stock of
such Person.

                 "Production Payment Transaction" means any sale or transfer by
the Company or any Restricted Subsidiary of (1) sand, gravel, limestone and
other minerals for a period of time until, or in an amount such that, the
purchaser or transferee will realize therefrom a specified amount of money
(however determined) or a specified amount of such sand, gravel, limestone and
other minerals, or (2) any other interest in property of the character commonly
referred to as a "production payment", whether or not the instrument or
instruments of sale or transfer, or creating the production payment, impose
obligations with respect to the operation, use or maintenance of the properties
sold or transferred or subject to the production payment.

                 "Purchase Money Indebtedness" means any Indebtedness incurred
by the Company or any of its Restricted Subsidiaries in connection with the
acquisition by the Company or such Subsidiary, after the Effective Date, of
equipment or other fixed assets, including Indebtedness incurred to finance,
refinance or refund the cost (including the cost of construction) of such
assets; provided that (i) the principal amount of such Indebtedness does not
exceed the Fair Value of the assets being acquired or the cost of construction
paid by or charged to the Company or such Restricted Subsidiary and (ii) such
Indebtedness shall not be secured by any assets of the Company or any
Restricted Subsidiary other than the assets with respect to which such
Indebtedness is incurred.

                 "Redemption Price" has the meaning assigned to such term in
Section 3.07 hereof.

                 "Receivables" means all "accounts", all "chattel paper", all
"instruments" evidencing "accounts" and all proceeds thereof, as each such term
is defined in the Uniform Commercial Code as in effect in the State of New York
on the Effective Date.

                 "Refinancing Indebtedness" means Indebtedness the proceeds of
which are used to extend, renew, refinance or refund then outstanding
Indebtedness of the Company or its Restricted Subsidiaries if such refinancing
or refunding Indebtedness (i) does not have a Principal amount in excess of the
Principal amount of the Indebtedness being so refinanced or refunded, plus
customary fees, expenses and costs related to the incurrence of such
Refinancing Indebtedness; (ii) gives its holders collateral with no greater
value (as determined by the Company's Board of Directors) and no more
Guaranties from the Company and its Subsidiaries (other than Unrestricted
Subsidiaries) than the Indebtedness being refinanced; (iii) amortizes no more
quickly and has a maturity date no earlier than the Indebtedness being
refinanced; and (iv) is at least as junior or no more senior in right of
payment to the Securities, as the case may be, as the Indebtedness being
refinanced (other





                                       7
<PAGE>   14
than with respect to any portion for which repayment is secured by Permitted
Liens or Guarantees of Unrestricted Subsidiaries or third parties).

                 "Registrar" has the meaning assigned to such term in Section 
2.03 hereof.

                 "Restricted Subsidiary" means:  (A) any Subsidiary other than:
(i) a Subsidiary substantially all of the physical properties of which are
located, and substantially all of the business of which is carried on, outside
the limits of the United States of America (including Alaska and Hawaii) or
which is organized under the laws of any jurisdiction other than the United
States of America, the District of Columbia, the Commonwealth of Puerto Rico,
the States or the possessions of the United States; (ii) a Subsidiary the
primary business of which consists of purchasing accounts receivable and/or
making loans secured by accounts receivable and/or making investments in or in
the development of real estate (other than for sale or lease to the Company or
its Restricted Subsidiaries) or providing services directly related thereto, or
which is otherwise primarily engaged in the finance business or in the real
estate business; or (iii) Rosebud Holdings, Inc. and its Subsidiaries; and (B)
any Subsidiary specified in clause (i) or (ii) of paragraph (A) above which the
Company, by resolution of the Board of Directors, shall have designated as a
Restricted Subsidiary.

                 "Retained Earnings" of any Person shall mean the amount which
would be shown as retained earnings on a balance sheet of such Person as of the
date the determination is being made.

                 "Sale of Assets" means any sale, lease or other conveyance of
a material amount of assets (including by way of merger or consolidation) of
the Company or its Restricted Subsidiaries out of the ordinary course of
business (including the Capital Stock of any Restricted Subsidiary of the
Company but excluding the Capital Stock of the Company), as the case may be, if
and to the extent (but only to the extent) that all such sales, leases and
other conveyances from and after the Effective Date result in aggregate Net
Proceeds in excess of $5 million; provided, however, that the term "Sale of
Assets" shall not include (i) any consolidation or merger involving the Company
or any Restricted Subsidiary for the purpose of reincorporating the Company or
such Subsidiary in another jurisdiction; (ii) the involvement of the Company or
any Restricted Subsidiary in a merger, consolidation or reorganization approved
by the holders of ---% or more of the then outstanding principal amount of the
Securities; (iii) any sale, lease, conveyance or other disposition of any
assets of Rosebud Holdings, Inc. and its Subsidiaries or any other Person in
which Rosebud Holdings, Inc. has an interest, directly or indirectly; (iv) any
sale, lease, conveyance or other disposition of assets among or between the
Company and one or more of its Restricted Subsidiaries or among or between
Restricted Subsidiaries, including, without limitation, the merger of any
Restricted Subsidiary with and into the Company or any other Restricted
Subsidiary of the Company; (v) any sale, lease, conveyance or other disposition
of the stock or any assets of any Unrestricted Subsidiary; (vi) any Production
Payment Transaction; (vii) any sale, lease, conveyance or other disposition of
assets of the Company or any Restricted Subsidiary to the extent the proceeds
thereof are reinvested substantially contemporaneously with their receipt in
the acquisition or improvement of assets by the Company and/or any





                                       8
<PAGE>   15
Restricted Subsidiary which the Board of Directors has in good faith determined
will be useful in the business to be conducted by the Company or such
Restricted Subsidiary; or (viii) any sale, lease, conveyance or other
disposition of assets pursuant to a sale-leaseback arrangement permitted
pursuant to this Indenture.  For purposes of this Indenture, a reinvestment of
proceeds shall be considered substantially contemporaneous if completed within
24 months of receipt and a material amount of assets means assets with a Fair
Value of at least $2 million.

                 "SEC" means the Securities and Exchange Commission.

                 "Securities" means the Notes issued under this Indenture.

                 "Senior Notes" means the Securities.

                 "Subsidiary" shall mean any Person more than 50% of the
outstanding voting stock of which is owned, directly or indirectly, by the
Company or by one or more other Subsidiaries.  For the purposes of this
definition, "voting stock" means stock which ordinarily has voting power for
the election of directors, whether at all times or only so long as no senior
class of stock has such voting power by reason of any contingency.

                 "TIA" means the Trust Indenture Act of 1939 (15 U.S. Code
Section Section  77aaa-77bbbb) as in effect on the date of this Indenture,
except as provided in Section 9.03.

                 "Total Borrowed Funds" shall mean at any time the aggregate,
without duplication, of (i) Indebtedness of the Company and its Restricted
Subsidiaries; (ii) the amount of any Indebtedness incurred by any Person other
than the Company or a Restricted Subsidiary which the Company or a Restricted
Subsidiary has guaranteed or for which it is otherwise liable or responsible
(such as by agreement to purchase indebtedness of others); (iii) amounts of
Indebtedness borrowed by Unrestricted Subsidiaries or Affiliates of the Company
or its Restricted Subsidiaries to the extent such amounts are loaned to the
Company or a Restricted Subsidiary regardless of any accounting treatment
employed by the Company's independent public accountants for "netting" such
loans against the investment of the Company or any Restricted Subsidiary in
such Unrestricted Subsidiary or Affiliate; and (iv) Purchase Money
Indebtedness; provided, however, that in computing Total Borrowed Funds of any
Person, there shall be excluded (x) Permitted Subordinated Indebtedness of the
Company and its Restricted Subsidiaries and (y) any particular indebtedness if,
upon or prior to the maturity thereof, there shall have been deposited with the
proper depository in trust, money (or evidences of such indebtedness if
permitted by the instrument creating such indebtedness) in the necessary amount
to pay, redeem or satisfy such indebtedness, and thereafter such money and
evidences of indebtedness so deposited shall not be included in any computation
of the assets of such Person.

                 "Total Capitalization" means at any time, without duplication,
for the Company and its Restricted Subsidiaries, (A) the sum of (i) Total
Borrowed Funds, (ii) par or stated value of outstanding shares of Preferred
Stock, (iii) the par or stated value of issued





                                       9
<PAGE>   16
and outstanding shares of any class or classes of the Company's Common Stock,
(iv) the amounts paid in respect of the Company's Capital Stock in excess of
capital not previously distributed, (v) Consolidated Retained Earnings, (vi)
the amount of deferred income taxes of the Company and its Subsidiaries
appearing in the most recent audited consolidated balance sheet of the Company
and its Subsidiaries at such time and (vii) any amount which under GAAP would
result in a credit to equity in connection with the issuance and/or exercise of
warrants, options or convertible securities.

                 "Trustee" means the party named as such in this Indenture
until a successor replaces it and thereafter means the successor.

                 "Trust Officer" means any officer of the Trustee assigned by
the Trustee to administer its corporate trust matters.

                 "Unrestricted Subsidiary" shall mean any Subsidiary which is
not a Restricted Subsidiary; all Unrestricted Subsidiaries as of the date of
this Indenture are listed on Schedule -- hereto.

                 "U.S. Government Obligations" means direct non-callable
obligations of, or non-callable obligations guaranteed by, the United States of
America for the payment of which the full faith and credit of the United States
of America is pledged.

                 "West Nyack Indebtedness" means the first $25 million of
principal amount of Indebtedness from time to time outstanding (and accrued
interest thereon), including without limitation Capitalized Leases,
sale-leaseback transactions or any other kind of Indebtedness incurred in
connection with the West Nyack Modernization.

                 "West Nyack Modernization" means the proposed modernization of
the Company's West Nyack, New York, plant and related facilities.

SECTION 1.02     INCORPORATION BY REFERENCE OF TRUST INDENTURE ACT.

                 Whenever this Indenture refers to a provision of the TIA, the
provision is incorporated by reference in and made a part of this Indenture.

                 The following TIA terms used in this Indenture have the
following meanings:

                 "indenture securities" means the Securities.

                 "indenture security holder" means a Securityholder.

                 "indenture to be qualified" means this Indenture.

                 "indenture trustee" or "institutional trustee" means the
Trustee.





                                       10
<PAGE>   17
                 "obligor" on the indenture securities means the Company.

                 All other terms used in this Indenture that are not otherwise
defined herein and are defined by the TIA, are defined by TIA reference to
another statute, or are defined by SEC rule under the TIA, have the meanings so
assigned to them.

SECTION 1.03     RULES OF CONSTRUCTION.

                 Unless the context otherwise requires:

                 (1)      a term has the meaning assigned to it;

                 (2)      "or" is not exclusive;

                 (3)      words in the singular include the plural and in the
         plural include the singular except where the context manifestly
         otherwise requires;

                 (4)      provisions apply to successive events and 
         transactions; and

                 (5)      "herein", "hereof" and other words of similar import
         refer to this Indenture as a whole and not to any particular Article,
         Section or other subdivision.


                                   ARTICLE 2.

                                 THE SECURITIES

SECTION 2.01     FORM AND DATING.

                 The Securities, the notation thereon relating to the Guarantee
and the Trustee's certificate of authentication shall be substantially in the
form set forth in Exhibit A, which is incorporated in and forms a part of this
Indenture.  The Securities may have such notations, legends or endorsements as
are required by law, stock exchange rule or usage.  Each Security shall be
dated the date of its authentication.

SECTION 2.02     EXECUTION AND AUTHENTICATION.

                 Two Officers shall sign the Securities for the Company by
manual or facsimile signature.  The Company's seal shall be reproduced on the
Securities.  An Officer of each of the Guarantors shall sign the Guarantee for
that Guarantor by manual or facsimile signature.

                 If an Officer whose signature is on a Security no longer holds
that office at the time the Security is authenticated, the Security shall
nevertheless be valid.





                                       11
<PAGE>   18
                 A Security shall not be valid until authenticated by the
manual or facsimile signature of the Trustee.  The signature shall be
conclusive evidence that the Security has been authenticated by the Trustee
under this Indenture.

                 The Trustee shall authenticate Securities for original issue
in the aggregate principal amount of up to $75,000,000 upon a written order of
the Company signed by two Officers or by an Officer and an Assistant Treasurer
or Assistant Secretary of the Company.  Such order shall specify the amount of
Securities to be authenticated and the date on which the original issue of
Securities is to be authenticated.  The aggregate principal amount of
Securities outstanding at any time may not exceed the amount of Securities
issued pursuant to this paragraph except as provided in Section 2.07.

                 The Trustee may appoint an authenticating agent acceptable to
the Company to authenticate Securities.  An authenticating agent may
authenticate Securities whenever the Trustee may do so.  Each reference in this
Indenture to authentication by the Trustee includes authentication by such
agent.  An authenticating agent has the same rights as an Agent to deal with
the Company or any Affiliate.

                 The Securities shall be issuable only in registered form
without coupons and only in denominations of $1,000 and integral multiples
thereof.

SECTION 2.03     REGISTRAR AND PAYING AGENT.

                 The Company shall maintain in the Borough of Manhattan, The
City of New York, an office or agency where Securities may be presented for
registration of transfer or for exchange (the "Registrar"), and an office or
agency where Securities may be presented for payment (the "Paying Agent").  The
Registrar shall keep a register of the Securities and of their transfer and
exchange.  The Company may appoint or change one or more co-registrars and one
or more additional paying agents without notice, and may act in any such
capacity on its own behalf provided that if the Trustee is acting as registrar
or paying agent, the Company shall give the Trustee at least five Business Days
prior written notice of such change.  The term "Paying Agent" includes any
additional paying agent.

                 The Company shall enter into an appropriate agency agreement
with any Agent not a party to this Indenture.  The agreement shall implement
the provisions of this Indenture that relate to such Agent.  The Company shall
notify the Trustee of the name and address of any Agent not a party to this
Indenture.  If the Company fails to maintain a Registrar or Paying Agent, the
Trustee shall act as such.

                 The Company initially appoints the Trustee as Registrar and 
Paying Agent.

SECTION 2.04     PAYING AGENT TO HOLD MONEY IN TRUST.

                 Each Paying Agent shall hold in trust for the benefit of the
Securityholders or the Trustee all moneys held by the Paying Agent for the
payment of principal of or interest





                                       12
<PAGE>   19
on the Securities (whether such money has been paid to it by the Company or any
Gurantor), and shall notify the Trustee of any default by the Company in making
any such payment.  While any such default continues, the Trustee may require a
Paying Agent to pay all money held by it to the Trustee.  The Company may at
any time require a Paying Agent to pay all money held by it to the Trustee.
Upon payment over to the Trustee, the Paying Agent shall have no further
liability for the money.  If the Company acts as Paying Agent, it shall
segregate and hold as a separate trust fund all money held by it as Paying
Agent.

SECTION 2.05     SECURITYHOLDER LISTS.

                 The Trustee shall preserve in as current a form as is
reasonably practicable the most recent list available to it of the names and
addresses of Securityholders.  If the Trustee is not the Registrar, the Company
shall furnish to the Trustee on or before each interest payment date and at
such other times as the Trustee may request in writing a list, in such form and
as of such date as the Trustee may reasonably require, of the names and
addresses of Securityholders.

SECTION 2.06     TRANSFER AND EXCHANGE.

                 When Securities are presented to the Registrar or a
co-Registrar with a request to register their transfer or to exchange them for
an equal principal amount of Securities of other authorized denominations
accompanied by a written instrument or instruments of transfer, in form
satisfactory to the Company and the Registrar, duly executed by the registered
owner or by his or her attorney duly authorized in writing, the Registrar shall
register the transfer or make the exchange if the requirements of Section
8-401(1) of the New York Uniform Commercial Code are met.  To permit
registrations of transfer and exchanges, the Trustee shall authenticate
Securities (accompanied by Guarantees duly endorsed by the Guarantors) at the
Registrar's request.  The Company or the Trustee, as the case may be, shall not
be required (i) to issue, authenticate, register the transfer of or exchange
any Security during a period beginning at the opening of business 15 days
before the mailing of a notice of redemption of the Securities selected for
redemption under Section 3.03 and ending at the close of business on the day of
such mailing, or (ii) to register the transfer of or exchange any Security so
selected for redemption in whole or in part, except the unredeemed portion of
Securities being redeemed in part.

                 No service charge shall be made for any registration of
transfer or exchange of Securities, but the Company may require payment of a
sum sufficient to cover any tax or other governmental charge that may be
imposed in connection with any transfer, registration of transfer or exchange
of Securities, other than exchanges pursuant to Sections 2.10, 3.06 or 9.05 not
involving any transfer.

                 Anything in this Indenture to the contrary notwithstanding,
but subject to the payment of interest to the Holders of the Securities on the
applicable record date, the parties hereto and any agent thereof may deem and
treat the Holder of any Securities, prior to due presentment thereof for
registration of transfer, as the absolute owner of such Securities for





                                       13
<PAGE>   20
all purposes (whether or not the Securities shall be overdue and
notwithstanding any notation of ownership or other writing thereon) and neither
the Company, the Trustee nor any agent of the Company or the Trustee shall be
affected by any notice to the contrary.

SECTION 2.07     REPLACEMENT SECURITIES.

                 If the Holder of a Security claims that the Security has been
mutilated, lost, destroyed or wrongfully taken, the Company shall execute and
issue and, upon the Company's request, the Trustee shall authenticate
(accompanied by Guarantees duly endorsed by the Guarantors) and deliver a
replacement Security if their respective reasonable requirements as well as the
requirements of applicable law are met and, in the case of a mutilated
Security, such mutilated Security is surrendered to the Trustee.  If required
by the Trustee, any Guarantor or the Company, an indemnity bond must be
furnished by such Holder in an amount sufficient in the judgment of the Trustee
or the Company, as the case may be, to indemnify and protect the Company, each
Guarantor, the Trustee and any other Agent and hold them harmless from any loss
which any of them may suffer if a Security is replaced.  The Company or the
Trustee may charge for its reasonable expenses in replacing a Security.

                 If any mutilated, destroyed or wrongfully taken Security has
become or is about to become due and payable, the Company in its discretion
may, instead of issuing a new Security, pay such Security when due.

                 Every replacement Security is an additional obligation of the
Company.

SECTION 2.08     OUTSTANDING SECURITIES.

                 Securities outstanding at any time are all the Securities
authenticated by the Trustee except those canceled by it, those delivered to it
for cancellation, and those described in this Section as not outstanding.  A
Security does not cease to be outstanding solely because the Company or any
Guarantor or one of their Subsidiaries or Affiliates is a Holder of the
Security.

                 If a Security is replaced pursuant to Section 2.07, it ceases
to be outstanding unless the Trustee receives proof satisfactory to it, or a
court holds, that the replaced Security is held by a bona fide purchaser.

                 If the Paying Agent (if other than the Company) or the Trustee
holds on a redemption date or the Maturity Date money sufficient to pay the
principal of, and accrued interest on, the Securities payable on that date,
then on and after that date such Securities shall be deemed to be no longer
outstanding and interest on them shall cease to accrue.





                                       14
<PAGE>   21
SECTION 2.09     SECURITIES HELD BY THE COMPANY OR AN AFFILIATE.

                 In determining whether the Holders of the required principal
amount of Securities have concurred in any direction, request, waiver or
consent under this Indenture, Securities owned by the Company or any Guarantor
or any Subsidiary or Affiliate of the Company or a Guarantor shall be
disregarded, except that for the purposes of determining whether the Trustee
shall be protected in relying on any such direction, request, waiver or
consent, only Securities which the Trustee knows are so owned shall be so
disregarded.

SECTION 2.10     TEMPORARY SECURITIES.

                 Until definitive Securities are ready for delivery, the
Company may prepare and execute and the Trustee shall authenticate (accompanied
by Guarantees duly endorsed by the Guarantor) and deliver temporary Securities.
Temporary Securities shall be substantially in the form of definitive
Securities, but may have such variations as the Company considers appropriate
for temporary Securities.  The Company shall prepare and execute and the
Trustee shall authenticate and deliver definitive Securities in exchange for
temporary Securities without unreasonable delay.

SECTION 2.11     CANCELLATION.

                 The Company may at any time deliver Securities to the Trustee
for cancellation.  The Registrar and Paying Agent shall forward to the Trustee
any Securities surrendered to them for registration of transfer, exchange or
payment.  The Trustee shall cancel all Securities surrendered for registration
of transfer, exchange, payment or cancellation and, at the option of the
Company, shall destroy canceled Securities and deliver a certificate of any
such destruction to the Company.  The Company may not issue new Securities to
replace Securities that it has paid or delivered to the Trustee for
cancellation.

SECTION 2.12     DEFAULTED INTEREST.

                 If and to the extent the Company defaults in a payment of
interest on the Securities, it shall pay the defaulted interest in any lawful
manner.  It may pay the defaulted interest to the Persons who are
Securityholders on a subsequent special record date.  The Company shall fix
such record date and payment date.  At least 15 days before the record date,
the Company shall mail to Securityholders, with a copy to the Trustee, a notice
that states the record date, payment date and amount of interest to be paid.





                                       15
<PAGE>   22
                                   ARTICLE 3.

                                   REDEMPTION

SECTION 3.01     NOTICES TO TRUSTEE.

                 If the Company wants to redeem Securities pursuant to Section
3.07 or is required to redeem Securities pursuant to Section 3.08, it shall
notify the Guarantor and the Trustee, by means of an Officer's Certificate at
least 60 days prior to the redemption date (unless a shorter notice period
shall be satisfactory to the Trustee), of the redemption date and the principal
amount of Securities to be redeemed.  If the Company elects to reduce the
amount of Securities required to be redeemed pursuant to Section 3.08 as
provided therein, it shall notify the Trustee at least 60 days prior to the
redemption date (unless a shorter notice period shall be satisfactory to the
Trustee) of the amount of the reduction and the basis for it.  If the Company
elects to credit against any such redemption Securities it has not previously
delivered to the Trustee for cancellation, it shall deliver the Securities with
the notice.

SECTION 3.02     SELECTION OF SECURITIES TO BE REDEEMED.

                 If less than all the Securities are to be redeemed, the
Trustee shall select the Securities to be redeemed on a pro rata basis, by lot
or such other method as the Trustee shall deem fair and equitable.  The Trustee
shall make the selection from Securities outstanding and not previously called
for redemption.  The Trustee may select for redemption portions of the
principal of Securities that have denominations larger than $1,000.  The
Securities and portions of them it selects shall be in amounts of $1,000 or
whole multiples of $1,000.  The provisions of this Indenture that apply to
Securities called for redemption also apply to portions of Securities called
for redemption.  For purposes of any such selection the Company will, upon
request of the Trustee, close for a period of 15 days preceding the mailing of
any notice of redemption the registry books of the Company with respect to the
Securities.

SECTION 3.03     NOTICE OF REDEMPTION.

                 At least 15 days but not more than 60 days before a redemption
date, the Company shall mail a notice of redemption by first-class mail to each
Holder whose Securities are to be redeemed.

                 The notice shall identify the Securities and the principal
amount thereof to be redeemed and shall state:

                 (1)      the redemption date;

                 (2)      the Redemption Price (and the amount of accrued
         interest to be paid on the Securities called for redemption);





                                       16
<PAGE>   23
                 (3)      the name and address of the Paying Agent;

                 (4)      the provisions of the Securities and this Indenture
         pursuant to which the Securities are to be redeemed;

                 (5)      that Securities called for redemption must be
         surrendered to the Paying Agent to collect the Redemption Price;

                 (6)      that interest on Securities called for redemption
         ceases to accrue on and after the redemption date unless the Company
         shall default in the payment of the Redemption Price; and

                 (7)      the CUSIP number of the Securities.

                 At the Company's request, the Trustee shall give the notice of
redemption in the Company's name and at the Company's expense.

SECTION 3.04     EFFECT OF NOTICE OF REDEMPTION.

                 Once a notice of redemption is mailed in accordance with the
provisions hereof, the Securities called for redemption become due and payable
on the redemption date at the Redemption Price and, on and after such
redemption date (unless the Company shall default in the payment of the
Redemption Price), such Securities shall cease to bear interest and such
Securities shall be deemed not to be outstanding hereunder and shall not be
entitled to any benefits hereunder, except to receive payment of the Redemption
Price together with all accrued interest to the date fixed for redemption.
Upon surrender to the Paying Agent, such Securities shall be paid at the
Redemption Price plus accrued interest to the redemption date.

SECTION 3.05     DEPOSIT OF REDEMPTION PRICE.

                 On or before the Business Day immediately preceding the
redemption date, the Company shall deposit with the Paying Agent money in funds
immediately available on the redemption date sufficient to pay the Redemption
Price of and accrued interest on all Securities to be redeemed on that date.

SECTION 3.06     SECURITIES REDEEMED IN PART.

                 Upon surrender of a Security that is redeemed in part, the
Trustee shall authenticate for the Holder a new Security equal in principal
amount to the unredeemed portion of the Security surrendered.





                                       17
<PAGE>   24
SECTION 3.07     OPTIONAL REDEMPTION.

                 The Securities may be redeemed at the option of the Company in
whole at any time or in part from time to time at a price equal to the
principal amount to be redeemed (the "Redemption Price") plus accrued and
unpaid interest to the date of such optional redemption.  The Securities may
also be redeemed or prepaid by purchase by the Company on the open market from
time to time, without penalty or premium.

SECTION 3.08     MANDATORY REDEMPTION UPON SALE OF ASSETS.

                 Neither the Company nor any Restricted Subsidiary may
consummate a Sale of Assets unless, within 120 days after consummation, all of
the Net Proceeds received as a result of the Sale of Assets (after setting
aside a sufficient amount of such proceeds so as to leave the Company with $5
million in net working capital and after setting aside any proceeds to be
reinvested in accordance with clause (vii) of the proviso to the definition of
Sale of Assets) are deposited with the Trustee to redeem outstanding Securities
at a price equal to the Redemption Price plus accrued and unpaid interest to
the date of such redemption.  With the approval of the Board of Directors, the
Company may elect, for purposes of this Section 3.08, to be deemed to have
deposited with the Trustee and applied Net Proceeds to the redemption of
Securities to the extent it shall acquire, before or after such Sale of Assets,
in lieu of making all or any portion of the deposit and redemptions of such
Securities provided for in this Section 3.08, through open market or other
purchases, Securities with a principal amount equal to the principal amount of
Securities which could have been redeemed with such amount of Net Proceeds
(upon payment of the Redemption Price plus accrued and unpaid interest thereon)
upon redemption pursuant to Section 3.07 and that have not been previously
credited against redemptions or purchases upon a Sale of Assets or a required
sinking fund payment under Section 3.09, provided any Securities so purchased
shall be delivered to the Trustee for cancellation within 120 days after the
receipt of such Net Proceeds.

SECTION 3.09     SINKING FUND PAYMENTS.

                 The Company shall make three payments of $10,000,000 each into
a [sinking fund account] maintained at [office] of the Trustee commencing in
the year 2000.  The first such payment shall be made on or before July ---,
2000, the second on or before July ---, 2001 and the third on or before July
- ---, 2002.  All funds in such account shall, at the Company's direction, from
time to time, be held in cash in an interest-bearing account, or invested in
U.S. Government Obligations designated by the Company with a maturity date not
later than one business day before the Maturity Date ("bonds").  The funds in
the [sinking fund account] shall be used to redeem Securities from time to time
on or before the Maturity Date as and when directed by the Company.  The amount
of any such required sinking fund payment may be reduced by the principal
amount of any Securities that the Company has optionally redeemed or purchased
and delivered to the Trustee for cancellation and that have not been previously
credited against redemptions or purchases upon a Sale of Assets or a required
sinking fund payment.  For purposes of this Indenture, funds held by the
Trustee shall be deemed held by the Paying Agent.  In the event that, at any
time, the





                                       18
<PAGE>   25
principal amount of any Securities previously redeemed under this Section or
delivered by the Company to the Trustee for cancellation under this Section
plus any cash (together with the proceeds of the bonds, including, without
limitation, principal, interest and premium) in the [sinking fund account] at
any time that the Company is not in default hereunder exceeds the lesser of (i)
the then outstanding principal amount of Securities and (ii) $30,000,000, the
excess shall be returned to the Company.


                                   ARTICLE 4.

                                   COVENANTS

SECTION 4.01     PAYMENT OF SECURITIES.

                 The Company shall pay the principal of and interest on the
Securities on the dates and in the manner provided in the Securities and this
Indenture.  Principal and interest shall be considered paid on the date due if
the Paying Agent (if other than the Company) holds on that date money
sufficient to pay all principal and interest then due.  The Company shall pay
interest on overdue principal at the rate borne by the Securities.

SECTION 4.02     MAINTENANCE OF OFFICE OR AGENCY.

                 The Company will maintain in the Borough of Manhattan, The
City of New York, an office or agency where Securities may be surrendered for
registration of transfer or exchange and where notices and demands to or upon
the Company in respect of the Securities and this Indenture may be served.  The
Company will give prompt written notice to the Trustee of the location, and any
change in the location, of such office or agency.  If at any time the Company
shall fail to maintain any such required office or agency or shall fail to
furnish the Trustee with the address thereof, such presentations, surrenders,
notices and demands may be made or served at the Corporate Trust Office of the
Trustee.

                 The Company may also from time to time designate one or more
other offices or agencies where the Securities may be presented or surrendered
for any or all such purposes and may from time to time rescind such
designations; provided, however, that no such designation or rescission shall
in any manner relieve the Company of its obligation to maintain an office or
agency in the Borough of Manhattan, The City of New York, for such purposes.
The Company will give prompt written notice to the Trustee of any such
designation or rescission and of any change in the location of any such other
office or agency.

                 The Company hereby designates the Corporate Trust Office of
the Trustee as an agency of the Company in accordance with Section 2.03.





                                       19
<PAGE>   26
SECTION 4.03     CORPORATE EXISTENCE.

                 Except as permitted in Article 5, the Company and its
Restricted Subsidiaries shall each do or cause to be done all things necessary
to preserve and keep in full force and effect its corporate existence;
provided, however, that the Company shall not be required to preserve any
corporate existence if its Board of Directors shall determine that the
preservation thereof is no longer desirable in the conduct of the business of
the Company and its Restricted Subsidiaries as a whole and that the loss
thereof is not disadvantageous in any material respect to the Holders.

SECTION 4.04     PAYMENT OF TAXES.

                 The Company will pay or discharge or cause to be paid or
discharged, before the same shall become delinquent (i) all taxes, assessments
and governmental charges levied or imposed upon the Company or any Restricted
Subsidiary and (ii) all lawful claims for labor, materials and supplies which,
if unpaid, might by law become a material Lien upon the property of the Company
or any Restricted Subsidiary; provided, however, that the Company shall not be
required to pay or discharge or cause to be paid or discharged any such tax,
assessment, charge or claim whose amount, applicability or validity is being
contested in good faith by appropriate proceedings and for which it has set
aside on its books such reserves as it deems adequate.

SECTION 4.05     MAINTENANCE OF PROPERTIES.

                 The Company will cause the material properties owned by the
Company or any Restricted Subsidiary for use in the conduct of its business or
the business of any such Restricted Subsidiary to be maintained and kept in
good condition, repair and working order (subject to ordinary wear and tear)
and will cause to be made all necessary repairs thereof, all as in the judgment
of the Company may be necessary so that the business carried on in connection
therewith may be properly and advantageously conducted; provided, however, that
nothing in this Section shall prevent the Company from discontinuing the
maintenance or repair of any such properties if such discontinuance is, in the
judgment of the Company, desirable in the conduct of its business or the
business of any Restricted Subsidiary and not disadvantageous in any material
respect to the Holders.

SECTION 4.06     SEC REPORTS.

                 Within 15 days after the Company files with the SEC copies of
its annual and quarterly reports and other information, documents and reports
(or copies of such portions of any of the foregoing as the SEC may by rules and
regulations prescribe) which it is required to file with the SEC pursuant to
Section 13 or 15(d) of the Exchange Act, the Company shall deliver the same to
the Trustee.  The Company will mail copies of its annual reports and quarterly
reports as filed with the SEC, other than exhibits to any such report unless
such exhibits are themselves incorporated by reference in such report, to any
Securityholder upon request. If the Company shall cease to be subject to the
requirements of Section 13 or 15(d)





                                       20
<PAGE>   27
of the Exchange Act, the Company shall deliver to the Trustee and to each
Securityholder, within 15 days after the date by which it would have been
required to make such a filing with the SEC, audited annual financial
statements prepared in accordance with generally accepted accounting principles
and unaudited condensed quarterly financial statements, including any notes
thereto, each comparable to that which the Company would have been required to
include in such annual reports, information, documents or other reports if the
Company were then subject to the requirements of Section 13 or 15(d) of the
Exchange Act.  The Company also shall comply with the other provisions of TIA
Section 314(a).

                 If, in accordance with GAAP, any Guarantor shall at any time
cease to be consolidated with the Company for financial reporting purposes,
such Guarantor will, within 15 days after it files with the SEC copies of its
annual and quarterly reports and other information, documents and reports (or
copies of such portions of any of the foregoing as the SEC may by rules and
regulations prescribe) which it is required to file with the SEC pursuant to
Section 13 or 15(d) of the Exchange Act, deliver the same to the Trustee.  Such
Guarantor will mail copies of its annual reports and quarterly reports as filed
with the SEC, other than exhibits to any such report unless such exhibits are
themselves incorporated by reference in such report, to any Securityholder upon
request.  If such Guarantor shall cease to be subject to the requirements of
Section 13 or 15(d) of the Exchange Act, such Guarantor (to the extent it is
required by the TIA, taking into consideration any waivers or no action
positions received by the Company or the Guarantors from the SEC, written
notice of which shall be provided to the Trustee) shall (i) deliver to the
Trustee and to each Securityholder, within 15 days after the date by which it
would have been required to make such a filing with the SEC, audited annual
financial statements prepared in accordance with GAAP and unaudited condensed
quarterly financial statements, including any notes thereto, each comparable to
that which such Guarantor would have been required to include in such annual
reports, information, documents or other reports if the Company were then
subject to the requirements of Section 13 or 15(d) of the Exchange Act and (ii)
comply with the other provisions of TIA Section 314(a).

SECTION 4.07     COMPLIANCE CERTIFICATE.

                 The Company and each Guarantor shall deliver to the Trustee
within 120 days after the end of each fiscal year of the Company and such
Guarantor, and within 60 days after the end of each of the first three fiscal
quarters of the Company and such Guarantor, an Officer's Certificate stating
that, after a review of the activities of the Company or such Guarantor, as the
case may be, during such period and of the Company's or such Guarantor's, as
the case may be, performance under this Indenture, whether or not, to the best
knowledge of the signer thereof based on such review, there has been any
Default or Event of Default by the Company or such Guarantor in performing any
of its obligations under this Indenture or the Securities.  If the signer does
know of any such Default or Event of Default, the certificate shall describe
the Default or Event of Default and its status.





                                       21
<PAGE>   28
SECTION 4.08     RESTRICTED INVESTMENTS AND RESTRICTED STOCK PAYMENTS.

                 The Company will not declare any dividends (other than
dividends payable solely in capital stock of the Company or dividends required
under the terms of a preferred stock issued by a company which is at the time
of such issuance or later becomes a Restricted Subsidiary) on any capital stock
of the Company or make any payment on account of the purchase, redemption or
other retirement of any shares of such stock or make any distribution in
respect thereof, either directly or indirectly, and the Company will not
itself, and will not permit any Restricted Subsidiary to, make any investment
in Unrestricted Subsidiaries, unless such dividends are declared to be payable
not more than 120 days after the date of declaration, and unless, after giving
effect to such proposed dividend or other such payment or distribution or
investment and to any other dividends declared but not yet paid, each of the
following conditions is complied with at the date (hereinafter called the
"Computation Date") of such declaration (in case of a dividend) or of such
other payment or distribution or investment:

                           (i)  Total Borrowed Funds of the Company and its
Restricted Subsidiaries, taken as a whole, is not more than 60% of Total
Capitalization of the Company and its Restricted Subsidiaries, taken as a
whole, and

                          (ii)  the sum of

                                  (1)  Consolidated Net Income computed for the
period commencing [on the Effective Date] to and including the Computation
Date, plus:

                                  (2)  the aggregate amount of net cash
proceeds to the Company from sale subsequent to [the Effective Date] of shares
of its Capital Stock, but only insofar as such proceeds do not exceed the
aggregate amount of all payments made subsequent to [the Effective Date] or
then being made on account of the purchase, redemption or retirement of any
shares of its Capital Stock

shall be greater than the sum of

                                  (3)  the aggregate amount of all such
dividends declared and all such other such payments and distributions in
respect of Capital Stock made during the period commencing [on the Effective
Date] to and including the Computation Date, plus

                                  (4)  the excess, if any, of (i) the amount of
the aggregate unliquidated investment (computed as hereinbelow provided) on the
Computation Date of the Company and all Restricted Subsidiaries in Unrestricted
Subsidiaries, over (ii) the aggregate of (x) [$-----------], being the amount
of the aggregate unliquidated investment (so computed) on [the Effective Date]
of the Company and all Restricted Subsidiaries in Unrestricted Subsidiaries (y)
an amount of up to $5 million which may be invested by the Company in
Construction Aggregates Ltd., to the extent useful for its working capital
needs and (z) the amount included in Consolidated Net Income, if any, by which
the aggregate of





                                       22
<PAGE>   29
the net profits realized upon any sales for cash after [the Effective Date] by
the Company and its Restricted Subsidiaries of its or their investments in
Unrestricted Subsidiaries exceeds the aggregate of the net losses, if any,
realized upon any such sales (such profits and losses to be determined in
accordance with generally accepted accounting principles and, in the case of
profits, after deducting all applicable taxes); provided that the profit or
loss on any such sale to the Company or to any Subsidiary shall not be included
in such computation; provided, however, that without regard to the foregoing
restrictions of this Section, (i) the Company may retire any shares of any
class of its Capital Stock by exchange for, or out of the proceeds of the
substantially concurrent sale of, other shares of its Capital Stock, and
neither any such retirement nor any such proceeds so used shall be included in
any computation provided for in this Section 4.08 and (ii) any Restricted
Subsidiary may make any required payments (including without limitation,
dividend, sinking fund, and mandatory redemption payments) on or in respect of
any Preferred Stock of such Restricted Subsidiary which exists on the Effective
Date or is outstanding at any time hereafter that the issuer of such Preferred
Stock first becomes a Restricted Subsidiary.  For purposes of this Section
4.08, the issuance of Capital Stock upon the conversion of any Indebtedness of
the Company shall be deemed to constitute a sale for cash of such capital stock
and the net proceeds of such sale shall be deemed to be an amount equal to the
principal amount of such Indebtedness, less applicable expenses and cash
payments for fractional shares.

                 For the purposes of any computation under this Section 4.08,
the amount of any dividend declared or other payment or distribution made in
property other than cash, and the amount of any investment in an Unrestricted
Subsidiary made through the transfer to it of any such property, shall be
deemed to be Fair Value (as determined by the Board of Directors) of such
property at the time of declaration (in the case of dividends) or at the time
of payment or distribution or investment.

                 Also for the purpose of any computation under this Section
4.08, the aggregate unliquidated investment of the Company and Restricted
Subsidiaries in any Unrestricted Subsidiary shall be computed in accordance
with generally accepted accounting principles and shall include all investments
by means of stock purchase, loan, advance, guarantee, capital contribution or
otherwise, provided, however, that

                 (A)      amounts invested by the Company through the exchange
of its stock for stock of any Unrestricted Subsidiary or for assets
contemporaneously transferred to an Unrestricted Subsidiary shall be
disregarded;

                 (B)      undistributed earnings of an Unrestricted Subsidiary
shall not be included;

                 (C)      there shall not be deducted from the amounts invested
in any Unrestricted Subsidiary any amounts received by the Company or any
Restricted Subsidiary (as dividends, interest or otherwise) as earnings on its
investment in such Unrestricted Subsidiary;





                                       23
<PAGE>   30
                 (D)      write-ups, write-downs or write-offs after [the
Effective Date], of investments in Unrestricted Subsidiaries shall be
disregarded; and

                 (E)      accounts receivable from an Unrestricted Subsidiary
arising in the ordinary course of business from the sale of goods or services
shall not be included.

SECTION 4.09     TRANSACTIONS WITH AFFILIATES.

                 The Company will not, and will not permit any of its
Restricted Subsidiaries, to, engage in any material transaction with any of its
Affiliates (other than the Company or other Restricted Subsidiaries) unless (i)
such transaction is in the ordinary course of business or (ii) the Board of
Directors in good faith determines that such transaction is in the best
interest of the Company or such Restricted Subsidiary.  Nothing in this Section
4.09 shall prohibit any transactions pursuant to any agreement existing as of
the Effective Date.

SECTION 4.10     LIMITATION ON TOTAL BORROWED FUNDS AND LIENS.

                 (a)      The Company will not, and will not permit any
Restricted Subsidiary, directly or indirectly, to create, incur or assume or
guarantee or otherwise become liable or responsible for, any Indebtedness,
unless immediately thereafter and after giving effect thereto, Total Borrowed
Funds of the Company and its Restricted Subsidiaries, taken as a whole, will
not be more than 60% of Total Capitalization of the Company and its Restricted
Subsidiaries, taken as a whole; provided, however, that nothing contained in
this paragraph 4.10(a) shall prevent (i) the Company or any Restricted
Subsidiary from creating, incurring or assuming or guaranteeing or otherwise
becoming liable or responsible for any Refinancing Indebtedness, or (ii) a
Restricted Subsidiary from creating, incurring, or assuming or guaranteeing or
otherwise becoming liable or responsible for Indebtedness to the Company or
another Restricted Subsidiary, (iii) the Company or any Restricted Subsidiary
from entering into any sale and lease-back transaction the proceeds of which
are reinvested substantially contemporaneously with their receipt in connection
with the acquisition or improvement of capital assets of the Company and/or any
of its Restricted Subsidiaries.

                 For purposes of this paragraph 4.10(a) and Section 4.08:  (a)
at the time that a corporation becomes a Restricted Subsidiary it shall be
deemed to have created at such time all the Indebtedness it has outstanding
immediately after such time, and (b) in case any Restricted Subsidiary shall
sell, transfer or otherwise dispose of any Indebtedness owing by the Company,
or in case the Capital Stock of any Restricted Subsidiary which holds
Indebtedness owing by the Company or any other Restricted Subsidiary shall be
sold, transferred or otherwise disposed of, such sale, transfer or disposition
shall be deemed to constitute the creation of such Indebtedness, and (c) if,
after the Effective Date, there shall be one or more changes in GAAP applicable
to the Company or any of its Restricted Subsidiaries which would cause the
Company or any Restricted Subsidiary to be prohibited from or restricted in
taking some action where the Company and its Restricted Subsidiary would not
have been so prohibited or restricted in the absence of such change in GAAP,
then





                                       24
<PAGE>   31
such change shall be ignored in making any computation contemplated by Section
4.08 or 4.10.

                 (b)      The Company will not, and will not permit any of its
Restricted Subsidiaries to, create, incur, assume or suffer to exist any Lien
on any asset owned by the Company or any of its Restricted Subsidiaries except
Permitted Liens.


SECTION 4.11     CONFLICTING AGREEMENTS.

                 The Company will not, and will not permit any of its
Restricted Subsidiaries to, enter into any agreement or execute any instrument
(other than agreements or instruments that relate solely to Permitted Working
Capital Loans and agreements involving Production Payment Transactions) that by
its terms expressly prohibits or otherwise would have the effect of prohibiting
the Company from redeeming or otherwise making any payments on or with respect
to the Securities pursuant to their terms and the terms of this Indenture.

SECTION 4.12     LIMITATION ON DIVIDENDS AND CERTAIN OTHER RESTRICTIONS
                 AFFECTING SUBSIDIARIES.

                 Except as otherwise provided by the terms of this Indenture,
any Permitted Working Capital Loans, any agreements involving Production
Payment Transactions or any agreements existing on the Effective Date, the
Company will not, and will not permit any of its Restricted Subsidiaries to
create or otherwise cause or suffer to exist or to become effective any
encumbrance or restriction on the ability of any of its Restricted Subsidiaries
(i) to pay dividends, make loans, extend guarantees or make any other
distributions to the Company or to other Restricted Subsidiaries, or to pay any
Indebtedness owed to the Company or a Restricted Subsidiary of the Company;
(ii) to make loans or advances to the Company or another Restricted Subsidiary;
or (iii) to transfer any of their respective properties or assets to the
Company, other than such encumbrances or restrictions existing under or by
reason of (a) applicable law, (b) customary non-assignment provisions of any
lease governing a leasehold interest of the Company or any of its Subsidiaries,
(c) restrictions on the transfer of assets acquired in connection with the
incurrence of Purchase Money Indebtedness and (d) Permitted Liens.

SECTION 4.13     LIMITATION ON RESTRICTED SUBSIDIARY INDEBTEDNESS.

                 The Company will not suffer or permit any Restricted
Subsidiary to:

                 (a)      directly or indirectly, create, incur or assume,
         guarantee or otherwise become liable or responsible for, or suffer to
         exist, any Indebtedness except (i) Indebtedness owed to the Company or
         a Restricted Subsidiary, (ii) Indebtedness secured by mortgages or
         other Liens permitted by the terms of this Agreement, (iii)
         Indebtedness outstanding at the time such Restricted Subsidiary became
         a Restricted Subsidiary, (iv) Indebtedness listed on Schedule --- to
         this Indenture, (v)





                                       25
<PAGE>   32
         Indebtedness in accordance with the definition of West Nyack
         Indebtedness, (vi) Permitted Working Capital Loans; (vii) Purchase
         Money Indebtedness, (viii) the Guarantee, and (ix) Refinancing
         Indebtedness.

                 (b)      have outstanding (i) any Preferred Stock other than
         Preferred Stock owned by the Company or a Restricted Subsidiary or
         Preferred Stock outstanding at the time such Restricted Subsidiary
         became a Restricted Subsidiary, or (ii) more than one class of Common
         Stock unless more than 50% of the outstanding shares of each class of
         Common Stock is owned by the Company or by one or more of its other
         Restricted Subsidiaries; or

                 (c)      issue or sell any Capital Stock of such Restricted
         Subsidiary to any Person other than the Company or a Restricted
         Subsidiary, except for (i) shares of Common Stock issued or sold
         solely for the purpose of qualifying directors, shares of Common Stock
         issued for the purpose of paying a pro rata stock dividend on the
         Common Stock of such Restricted Subsidiary, and (ii) additional shares
         of Common Stock sold in a subscription offer to the holders of the
         outstanding shares of Common Stock of such Restricted Subsidiary
         provided that the Company and its other Restricted Subsidiaries shall
         acquire a portion of such additional shares at least equal to the
         proportion of the outstanding shares of Common Stock of such
         Restricted Subsidiary theretofore owned by them.

SECTION 4.14     RESTRICTED SUBSIDIARIES.

                 The Company:

                 (a)      will not, and will not suffer or permit any
         Restricted Subsidiary to, sell, transfer or otherwise dispose of any
         outstanding Capital Stock or Indebtedness of a Restricted Subsidiary
         owned by the Company or another Restricted Subsidiary to any Person
         other than the Company or a Restricted Subsidiary (except for
         directors' qualifying shares or shares of Capital Stock or
         Indebtedness sold, transferred or disposed of in order to comply with
         any applicable law, governmental regulation, order or decree) unless
         (x) (i) the Restricted Subsidiary, the Capital Stock and Indebtedness
         of which are so being sold, transferred or disposed of, does not own
         any Capital Stock or Indebtedness of any other Restricted Subsidiary
         and (ii) all outstanding Capital Stock and all Indebtedness of the
         Restricted Subsidiary, the Capital Stock and Indebtedness of which are
         so being sold, transferred or disposed of (which outstanding Capital
         Stock and Indebtedness are owned by the Company or any Restricted
         Subsidiary), are sold, transferred or otherwise disposed of at one
         time as an entirety, in a single transaction or related series of
         transactions, for a consideration and upon terms deemed by the Board
         of Directors to be adequate and satisfactory; or (y) the Indebtedness
         sold, transferred or otherwise disposed of, if newly created on the
         date of such disposition, would have been permitted as of such date
         under Section 4.10 and 4.13;





                                       26
<PAGE>   33
                 (b)      will not suffer or permit a Restricted Subsidiary to
         consolidate or merge with or into any other Person, or to lease, sell
         or transfer all or substantially all of its property and assets to any
         Person, except that:

                          (1)     a Restricted Subsidiary may so consolidate or
                 merge into, or may so lease, sell or transfer such property
                 and assets to, the Company;

                          (2)     a Restricted Subsidiary may so consolidate or
                 merge with or into any other Person or may so lease, sell or
                 transfer such property and assets to any other Person if,
                 after giving effect to the transaction, the entity surviving
                 such consolidation or merger, or acquiring such property and
                 assets, will be a Restricted Subsidiary; and

                          (3)     a Restricted Subsidiary may so sell such
                 property and assets for a consideration and upon terms deemed
                 by the Board of Directors to be adequate and satisfactory; and

                 (c)      will not suffer or permit any Unrestricted Subsidiary
         to own any Capital Stock of a Restricted Subsidiary.

                 Promptly after the designation of a Subsidiary as a Restricted
Subsidiary the Company will notify the Trustee in writing of such designation.

SECTION 4.15     WAIVER OF STAY, EXTENSION OR USURY LAWS.

                 The Company covenants (to the extent that it may lawfully do
so) that it will not at any time insist upon, or plead, or in any manner
whatsoever claim or take the benefit or advantage of, any stay or extension law
or any usury law or other law which would prohibit or release the Company from
paying all or any portion of the principal or interest on the Securities as
contemplated herein, wherever enacted, now or at any time hereafter in force,
or which may affect the covenants or the performance of this Indenture, and (to
the extent that it may lawfully do so) the Company hereby expressly waives all
benefit or advantage of any such law, and covenants that it will not hinder,
delay or impede the execution of any power herein granted to the Trustee, but
it will suffer and permit the execution of every such power as though no such
law had been enacted.

SECTION 4.16     MAINTENANCE OF INSURANCE AND RECORDS, COMPLIANCE WITH LAW.

                 (a)      Except to the extent that, in the exercise of its
good faith business judgment, the Company believes the cost to be incurred in
procuring and/or maintaining insurance to be excessive in view of the benefit
to be derived therefrom, the Company shall, and shall cause its Restricted
Subsidiaries to, maintain with financially sound and reputable insurers such
(i) liability and property and casualty insurance as may be required by law and
(ii) such other insurance, to such extent and against such hazards and
liabilities, substantially equivalent to the insurance that comparable
companies maintain.





                                       27
<PAGE>   34
                 (b)      The Company shall keep, or cause to be kept, true
books and records and accounts in which entries will be made of all of the
business transactions of the Company and its Restricted Subsidiaries which
shall be full and correct in all material respects, in accordance with sound
business practices, and reflect in their respective financial statements
adequate accruals and appropriate reserves, all in accordance with generally
accepted accounting principles.

                 (c)      The Company shall, and shall cause its Restricted
Subsidiaries to, comply with all statutes, laws, ordinances, or governmental
rules and regulations to which it is subject, noncompliance with which would
materially adversely affect the prospects, earnings, properties, assets or
condition, financial or otherwise, of the Company and its Restricted
Subsidiaries taken as a whole.

SECTION 4.17     LIMITATION ON REDEMPTION OF CERTAIN PERMITTED SUBORDINATED
                 INDEBTEDNESS.

                 The Company will not, and will not permit any of its
Restricted Subsidiaries to, at any time that an Event of Default remains
uncured hereunder or at any time prior to the Maturity Date (i) redeem pursuant
to the optional redemption provisions thereof, or make any optional payment of
principal on, any Permitted Subordinated Indebtedness; (ii) defease Permitted
Subordinated Indebtedness; or (iii) issue to the holders of Permitted
Subordinated Indebtedness in exchange therefor any property or assets (other
than the proceeds of any Refinancing Indebtedness incurred with respect to such
Permitted Subordinated Indebtedness or securities which do not require payments
of principal or interest and are not mandatorily redeemable on or prior to the
Maturity Date).

SECTION 4.18     VALUE OF CLAIMS REPRESENTED BY SECURITIES.

                 The parties hereto covenant and agree that in any case
commenced under Chapter 11 of Title 11 of the United States Code subsequent to
the Effective Date involving the Company, the claims represented by the
Securities shall equal the full principal amount of the Securities, plus
accrued and unpaid interest at the stated rates set forth in the Securities.

SECTION 4.19     INVESTMENT COMPANY ACT OF 1940.

                 The Company will not, and will not permit any of its
Restricted Subsidiaries to, take any action resulting in its becoming an
"investment company" (as such term is defined in the Investment Company Act of
1940, as amended).

SECTION 4.20     NOTICE OF DEFAULT.

                 In the event that any Default under this Indenture shall
occur, the Company will give prompt written notice of such Default to the
Trustee, specifying the nature and





                                       28
<PAGE>   35
status of such Default and the steps which the Company or its Subsidiaries have
taken or propose to take in order to cure such Default.


                                   ARTICLE 5.

                                   SUCCESSORS

SECTION 5.01     WHEN COMPANY MAY MERGE, ETC.

                 The Company shall not consolidate or merge with or into, or 
sell, assign, transfer or lease all or substantially all of the assets of the 
Company and its Restricted Subsidiaries, taken as a whole, to, any Person 
unless:

                  (i)     the Person formed by or surviving any such
         consolidation or merger (if other than the Company), or to which such 
         sale or conveyance shall have been made, is an entity organized and 
         existing under the laws of the United States, any state thereof or 
         the District of Columbia; and

                 (ii)     the Person formed by or surviving any such
         consolidation or merger (if other than the Company), or to which such 
         sale or conveyance shall have been made, assumes by supplemental 
         indenture all the obligations of the Company under the Securities and 
         this Indenture (including, without limitation, those under 
         Section 3.09 hereof).

                 The Company shall deliver to the Trustee prior to the 
consummation of the proposed transaction an Officer's Certificate to the 
foregoing effect and an Opinion of Counsel stating that the proposed
transaction and supplemental indenture comply with this Indenture.

SECTION 5.02     SUCCESSOR SUBSTITUTED.

                 Upon any consolidation or merger or transfer or lease of all
or substantially all of the assets of the Company and its Restricted
Subsidiaries taken as a whole, in accordance with Section 5.01, the successor 
Person formed by such consolidation or into which the Company is merged or to
which such sale, assignment, transfer or lease is made shall succeed to, and be
substituted for, and may exercise every right and power of, and shall assume
every duty and obligation of, the Company under this Indenture with the same 
effect as if such successor corporation had been named as the Company herein.
When the successor corporation assumes all obligations of the Compan hereunder,
all obligations of the predecessor corporation shall terminate.





                                       29
<PAGE>   36

                                   ARTICLE 6.

                             DEFAULTS AND REMEDIES

SECTION 6.01     EVENTS OF DEFAULT.

                 An "Event of Default" occurs if:

                 (1)      the Company and the Guarantors default in the payment
         of interest on any Security when the same becomes due and payable,
         whether at maturity, in connection with any redemption, by
         acceleration or otherwise, and such default continues for a period of
         30 days;

                 (2)      the Company and the Guarantors default in the payment
         of the principal of any Security when the same becomes due and
         payable, whether at maturity, in connection with any redemption, by
         acceleration or otherwise and such default continues for a period of
         30 days after the earlier of (i) the date on which written notice of
         such failure, requiring the Company and the Guarantors to remedy the
         same, shall have been given to the Company and each of the Guarantors
         by the Trustee, or to the Company, each of the Guarantors and the
         Trustee by the Holders of at least 25% in aggregate principal amount
         of the Securities at the time outstanding or (ii) the date on which
         the Company and each of the Guarantors had Actual Knowledge of such
         failure;

                 (3)      the Company or any of its Restricted Subsidiaries
         fails to observe or perform in any material respect any of its other
         covenants or agreements in the Securities or this Indenture, which
         failure continues for a period of 30 days after the earlier of (i) the
         date on which written notice of such failure, requiring the Company to
         remedy the same, shall have been given to the Company by the Trustee,
         or to the Company and the Trustee by the Holders of at least 25% in
         aggregate principal amount of the Securities at the time outstanding
         or (ii) the date on which the Company had Actual Knowledge of such
         failure;

                 (4)      (a) the Company or any of its Restricted
         Subsidiaries, fails to pay when due (whether at maturity, in
         connection with any mandatory amortization or redemption, by
         acceleration or otherwise) any principal or interest on any
         Indebtedness with an aggregate outstanding principal amount in excess
         of $5 million, whether any such Indebtedness is outstanding as of the
         date of this Indenture or is hereafter outstanding, which default
         continues for the greater of any period of grace applicable thereto or
         60 days from the date of such default, or (b) a default or event of
         default, as defined in one or more indentures, agreements or other
         instruments evidencing or under which the Company or any of its
         Restricted Subsidiaries individually or collectively have, as of the
         date of this Indenture or hereafter, outstanding at least $5 million
         aggregate principal amount of Indebtedness, shall





                                       30
<PAGE>   37
         happen and be continuing and such Indebtedness shall have been
         accelerated so that it is due and payable prior to the date on which
         it would otherwise have become due and payable, and such acceleration
         shall not be rescinded or annulled within 60 days after the earlier of
         (i) the date on which written notice of such acceleration shall have
         been given to the Company by the Trustee, or to the Company and the
         Trustee by the Holders of at least 25% in aggregate principal amount
         of the Securities at the time outstanding or (ii) the date on which
         the Company had Actual Knowledge of such acceleration; provided that
         if such default or event of default under such indenture or other
         instrument shall be remedied or cured by the Company or the Restricted
         Subsidiary or waived by the holders of such Indebtedness, then the
         Event of Default under this Indenture by reason thereof shall be
         deemed likewise to have been thereupon remedied, cured or waived
         without further action upon the part of either the Trustee or any of
         the Holders of Securities;

                 (5)      one or more final judgments against the Company or
         any of its Restricted Subsidiaries for payments of money which in the
         aggregate exceed $5 million, are entered by a court of competent
         jurisdiction and such judgments are not rescinded, annulled, stayed or
         discharged within 90 days;

                 (6)      the Company and its Restricted Subsidiaries, taken as
         a whole become insolvent;

                 (7)      the Company or any of its material Restricted
         Subsidiaries pursuant to or within the meaning of any Bankruptcy Law:

                          (a)     commences a voluntary case,

                          (b)     consents to the entry of a judgment, decree
                 or order for relief against it in an involuntary case or
                 proceeding,

                          (c)     consents to the appointment of a Custodian of
                 the Company or such material Subsidiary or for all or
                 substantially all of its property,

                          (d)     makes a general assignment for the benefit of
                 its creditors, or

                          (e)     applies for, consents to or acquiesces in the
                 appointment of, or taking possession by a Custodian;

                 (8)      a court of competent jurisdiction enters a judgment,
         decree or order for relief in respect of the Company or any of its
         material Restricted Subsidiaries in an involuntary case or proceeding
         under any Bankruptcy Law which shall

                          (a)     approve as properly filed a petition seeking
                 reorganization, arrangement, adjustment or composition;





                                       31
<PAGE>   38
                          (b)     appoint a Custodian for any part of its
                 property; or

                          (c)     order the winding up or liquidation of its
                 affairs;

         and such judgment, decree or order remains unstayed and in effect for
         a period of sixty (60) consecutive days; or

                 (9)      any bankruptcy or insolvency petition or application
         is filed, or any bankruptcy case or insolvency proceeding is commenced
         against, the Company or any of its material Restricted Subsidiaries
         and such petition, application, case or proceeding is not dismissed or
         stayed within ninety (90) days.

                 The term "Bankruptcy Law" means Title 11, U.S. Code or any
similar Federal or State law for the relief of debtors.  The term "Custodian"
means any receiver, trustee, assignee, liquidator or similar official under any
Bankruptcy Law.  The term "Actual Knowledge" means the actual knowledge of any
executive officer of the Company; provided, however, that each executive
officer of the Company shall be deemed to have actual knowledge of any fact
that would have come to such officer's attention if he or she had exercised
reasonable care in performing his or her duties, given the nature of his or her
duties and the Company's business and organization.

SECTION 6.02     ACCELERATION.

                 If an Event of Default (other than an Event of Default
specified in Section 6.01(6), (7), (8) or (9)) occurs and is continuing, the
Trustee by notice to the Company and each of the Guarantors, or the Holders of
at least 25% in principal amount of the Securities by notice to the Company,
each of the Guarantors and the Trustee, may declare the principal of and
accrued interest on all the Securities to be due and payable.  Upon such
declaration such principal and interest shall be due and payable immediately.
If an Event of Default specified in Section 6.01(6), (7), (8) or (9) occurs,
all unpaid principal and accrued interest on the Securities then outstanding
shall ipso facto become and be immediately due and payable without any
declaration or other act on the part of the Trustee or any Securityholder.  The
Holders of at least 66 2/3% of the principal amount of the Securities may
rescind an acceleration and its consequences by notice to the Trustee if the
rescission would not conflict with any judgment or decree and if the
outstanding Events of Default have been cured or waived except, unless
theretofore cured, nonpayment of principal or interest that has become due
solely because of the acceleration.  No such rescission shall affect any
subsequent Default or impair any right or remedy with respect thereto.

SECTION 6.03     OTHER REMEDIES.

                 Notwithstanding any other provision of this Indenture, if an
Event of Default occurs and is continuing, the Trustee may pursue any available
remedy by proceeding at law or in equity to collect the payment of principal of
or interest on the Securities or to enforce the performance of any provision of
the Securities, this Indenture or the Guarantee.





                                       32
<PAGE>   39
                 The Trustee may maintain a proceeding even if it does not
possess any of the Securities or does not produce any of them in the
proceeding.  A delay or omission by the Trustee or any Securityholder in
exercising any right or remedy accruing upon an Event of Default shall not
impair the right or remedy or constitute a waiver of or acquiescence in the
Event of Default.  No remedy is exclusive of any other remedy.  All remedies
are cumulative.

                 In case the Trustee shall have proceeded to enforce any rights
under this Indenture or the Guarantee and such proceedings shall have been
discontinued or abandoned for any reason or shall have been determined
adversely to the Trustee, then and in every such case the Company, the Trustee
and the Holders shall, subject to any determination in such proceeding, be
restored respectively to their former positions and rights hereunder, and all
rights, remedies and powers of the Company, the Guarantors and the Trustee
shall continue as though no such proceeding had been taken.

SECTION 6.04     WAIVER OF PAST DEFAULTS.

                 Subject to Sections 6.07 and 9.02, the Holders of at least 66
2/3% of the principal amount of the Securities by notice to the Trustee may
waive an existing Default or Event of Default and its consequences.  When a
Default or Event of Default is waived, it is cured and ceases.

SECTION 6.05     CONTROL BY MAJORITY.

                 The Holders of a majority in principal amount of the
Securities may direct the time, method and place of conducting any proceeding
for any remedy available to the Trustee or exercising any trust or power
conferred on it.  The Trustee, however, may refuse to follow any direction that
conflicts with law or this Indenture, is unduly prejudicial to the rights of
any Securityholder or would subject the Trustee to personal liability;
provided, the Trustee may take any other action deemed proper by the Trustee
which is not inconsistent with such direction.  The Company may set a record
date for purposes of determining who may exercise such control.

SECTION 6.06     LIMITATION ON SUITS.

                 Except as provided in Section 6.07, a Securityholder may
pursue a remedy with respect to this Indenture or the Securities only if:

                 (1)      the Holder gives to the Trustee written notice of a
         continuing Event of Default;

                 (2)      the Holders of at least 25% in principal amount of
         the Securities make a written request to the Trustee to pursue the
         remedy;





                                       33
<PAGE>   40
                 (3)      such Holder or Holders offer to the Trustee indemnity
         reasonably satisfactory to the Trustee against any loss, liability or
         expense;

                 (4)      the Trustee does not comply with the request within
         60 days after receipt of the request and the offer of indemnity; and

                 (5)      during such 60-day period the Holders of a majority
         in principal amount of the Securities do not give the Trustee a
         direction inconsistent with the request.

                 A Securityholder may not use this Indenture to prejudice the
rights of any other Securityholder or to obtain a preference or priority over
any other Securityholder.

SECTION 6.07     RIGHTS OF HOLDERS TO RECEIVE PAYMENT.

                 Notwithstanding any other provision of this Indenture, the
right of any Holder of a Security to receive payment of principal of and
interest on the Security, on or after the respective due dates (prior to any
acceleration) expressed in the Security, or to bring suit for the enforcement
of any such payment on or after such respective dates, shall not be impaired or
affected without the consent of the Holder.

SECTION 6.08     COLLECTION SUIT BY TRUSTEE.

                 If an Event of Default specified in Section 6.01(1) or (2)
occurs and is continuing, the Trustee may recover judgment in its own name and
as trustee of an express trust against the Company and the Guarantors for the
whole amount of principal and interest in default.

SECTION 6.09     TRUSTEE MAY FILE PROOFS OF CLAIMS.

                 The Trustee may file such proofs of claim and other papers or
documents as may be necessary or advisable in order to have the claims of the
Trustee, any predecessor Trustee and the Securityholders allowed in any
judicial proceedings relative to the Company, the Guarantors, their creditors
or their property.

                 Nothing herein contained shall be deemed to authorize the
Trustee to authorize or consent to or accept or adopt on behalf of any Holder
of the Securities any plan of reorganization, arrangement, adjustment or
composition affecting the Securities or the rights of any Holder thereof, or to
authorize the Trustee to vote in respect of the claim of any Holder of the
Securities in any such proceeding.





                                       34
<PAGE>   41
SECTION 6.10     PRIORITIES.

                 If the Trustee collects any money pursuant to this Article, it
shall pay out the money in the following order:

                 First:  to the Trustee for amounts due under Section 7.07;

                 Second:  to Securityholders for amounts due and unpaid on the
         Securities for principal and interest, ratably, without preference or
         priority of any kind, according to the amounts due and payable on the
         Securities for principal and interest, respectively;

                 Third:  to the Company or such other Person (including a 
         Guarantor) as is legally entitled thereto.

                 The Trustee may fix a record date and payment date for any
         payment by it to Securityholders pursuant to this Section.

SECTION 6.11     UNDERTAKING FOR COSTS.

                 In any suit for the enforcement of any right or remedy under
this Indenture or in any suit against the Trustee for any action taken or
omitted by it as Trustee, a court in its discretion may require any party
litigating the suit other than the Trustee to file an undertaking to pay the
costs of the suit, and the court in its discretion may assess reasonable costs,
including reasonable attorneys' fees, against any party litigant in the suit,
having due regard to the merits and good faith of the claims or defenses made
by the party litigant.  This Section does not apply to a suit by the Trustee, a
suit by a Holder pursuant to Section 6.07, or a suit by Holders of more than
10% in principal amount of the Securities.


                                   ARTICLE 7.

                                    TRUSTEE

SECTION 7.01     ACCEPTANCE OF TRUSTS; DUTIES OF TRUSTEE.

                 The Trustee hereby accepts the trusts imposed upon it by this
Indenture and covenants and agrees to perform the same as herein expressed.

                 (a)      If an Event of Default has occurred and is
continuing, the Trustee shall exercise such of the rights and powers vested in
it by this Indenture and the Guarantee, and use the same degree of care and
skill in their exercise, as a prudent Person would exercise or use under the
circumstances in the conduct of his or her own affairs.





                                       35
<PAGE>   42
                 (b)      Except during the continuance of an Event of Default:

                          (1)     The Trustee need perform only those duties
         that are specifically set forth in this Indenture and no others.

                          (2)     In the absence of bad faith on its part, the
         Trustee may conclusively rely, as to the truth of the statements and
         the correctness of the opinions expressed therein, upon certificates
         or opinions furnished to the Trustee and conforming to the
         requirements of this Indenture.  However, the Trustee shall examine
         the certificates and opinions to determine whether or not they conform
         to the requirements of this Indenture.

                 (c)      The Trustee may not be relieved from liability for
its own negligent action, its own negligent failure to act or its own willful
misconduct, except that:

                          (1)     This paragraph does not limit the effect of 
         paragraph (b) of this Section 7.01.

                          (2)     The Trustee shall not be liable with respect
         to any error of judgment made in good faith by a Trust Officer, unless
         it is proved that the Trustee was negligent in ascertaining the
         pertinent facts.

                          (3)     The Trustee shall not be liable with respect
         to any action it takes or omits to take in good faith in accordance
         with a direction received by it pursuant to Section 6.05.

                 (d)      Every provision of this Indenture that in any way
relates to the Trustee is subject to paragraphs (a), (b) and (c) of this
Section 7.01.

                 (e)      The Trustee may refuse to exercise any of its rights
or powers under this Indenture at the request of any Holders unless such
Holders shall have offered to the Trustee indemnity reasonably satisfactory to
it against any loss, liability or expense.  No provision of this Indenture
shall require the Trustee to expend or risk its own funds or otherwise incur
any financial liability in the performance of any of its duties hereunder, or
in the exercise of its rights or power, if it has reasonable grounds for
believing, and does believe in good faith, that repayment of such funds or
adequate indemnity against such risk or liability is not reasonably assured to
it.

                 (f)      The Trustee shall not be liable for interest on any
money received by it except as expressly provided with respect to the sinking
fund account or as the Trustee may agree with the Company.  Money held in trust
by the Trustee need not be segregated from other funds except to the extent
required by law.





                                       36
<PAGE>   43
SECTION 7.02     RIGHTS OF TRUSTEE.

                 (1)      The Trustee may rely on any document believed by it
         to be genuine and to have been signed or presented by the proper
         Person.  The Trustee need not investigate any fact or matter stated in
         the document.

                 (2)      Before the Trustee acts or refrains from acting, it
         may require an Officer's Certificate and/or an Opinion of Counsel and
         may consult with its counsel.  The Trustee shall not be liable for any
         action it takes or omits to take in good faith in reliance on such
         Certificate, Opinion or advice of such counsel.

                 (3)      The Trustee may act through agents and shall not be
         responsible for the misconduct or negligence of any agent appointed
         with due care.

SECTION 7.03     INDIVIDUAL RIGHTS OF TRUSTEE.

                 The Trustee in its individual or any other capacity may become
the owner or pledgee of Securities and may otherwise deal with the Company or
any of the Guarantors or an Affiliate thereof with the same rights it would
have if it were not Trustee.  Any Agent may do the same with like rights.  The
Trustee, however, must comply with Sections 7.10 and 7.11.

SECTION 7.04     TRUSTEE'S DISCLAIMER.

                 The Trustee makes no representation as to the validity or
adequacy of this Indenture, the Guarantee or the Securities, and it shall not
be responsible for any statement in the Securities or the Guarantee other than
its certificate of authentication.

SECTION 7.05     NOTICE OF DEFAULTS.

                 If a Default occurs and is continuing and if it is known to
the Trustee, the Trustee shall mail to each Securityholder a notice of the
Default within 90 days after it occurs.  Except in the case of a Default in
payment of principal of or interest on any Security, the Trustee may withhold
the notice if and so long as it in good faith determines that withholding the
notice is in the interests of Securityholders.

SECTION 7.06     REPORTS BY TRUSTEE TO HOLDERS.

                 Within 60 days after each ------ beginning -----------, 1994,
the Trustee shall mail to each Securityholder as required by TIA Section
313(c) a brief report dated as of such date that complies with TIA Section
313(a).  The Trustee also shall comply with TIA Section 313(b).
                                                       
                 A copy of each report at the time of its mailing to
Securityholders shall be filed by the Trustee with the SEC and each stock
exchange, if any, on which the Securities





                                       37
<PAGE>   44
are listed.  The Company shall notify the Trustee when the Securities are
listed on any stock exchange.

SECTION 7.07     COMPENSATION AND INDEMNITY.

                 The Company shall pay to the Trustee from time to time such
compensation for its services as shall be agreed upon in writing.  The
Trustee's compensation shall not be limited by any law on compensation of a
trustee of an express trust.  The Company shall reimburse the Trustee upon
request for all reasonable out-of-pocket expenses, advances and disbursements
incurred by it.  Such expenses shall include the reasonable compensation and
out-of-pocket expenses of the Trustee's agents and counsel.

                 Except as hereinafter provided in this paragraph, the Company
and each Guarantor shall indemnify the Trustee against any loss or liability
(including the reasonable fees and expenses of counsel) incurred by it in
connection with the administration of this trust and the performance of its
duties hereunder.  Neither the Company nor any Guarantor need pay any amount in
respect of a settlement made without its consent.  The Trustee shall notify the
Company and each Guarantor promptly of any claim for which it may seek
indemnification.  Neither the Company nor any Guarantor need reimburse any
expense or indemnify against any loss or liability incurred by the Trustee
through the Trustee's negligence or bad faith.

                 To secure the Company's and each Guarantor's payment
obligations in this Section, the Trustee shall have a lien prior to the
Securities on all money or property held or collected by the Trustee except
that held in trust to pay principal and interest on particular Securities.

                 When the Trustee incurs expenses or renders services after an
Event of Default specified in Section 6.01(6), (7), (8) or (9) occurs, the
expenses and the compensation for services are intended to constitute expenses
of administration under any Bankruptcy Law.

SECTION 7.08     REPLACEMENT OF TRUSTEE.

                 A resignation or removal of the Trustee and appointment of a
successor Trustee shall become effective only upon the successor Trustee's
acceptance of appointment as provided in this Section.

                 The Trustee may resign by so notifying the Company and each
Guarantor.  The Holders of a majority in principal amount of the Securities may
remove the Trustee by so notifying the Trustee, each Guarantor and the Company
and may appoint a successor Trustee with the Company's consent.  The Company
may remove the Trustee if:

                 (1)      the Trustee fails to comply with Section 7.10;

                 (2)      the Trustee is adjudged a bankrupt or an insolvent;





                                       38
<PAGE>   45
                 (3)      a receiver or other public officer takes charge of
         the Trustee or its property;
         
                 (4)      the Trustee becomes incapable of acting; or

                 (5)      in the Company's good faith judgment, the Trustee's
         fees and expense structure for acting as such hereunder become
         materially non-competitive.

                 If the Trustee resigns or is removed or if a vacancy exists in
the office of Trustee for any reason, the Company shall promptly appoint a
successor Trustee.  Within one year after the successor Trustee takes office,
the Holders of a majority in principal amount of the Securities may appoint a
successor Trustee to replace the successor Trustee appointed by the Company.

                 If a successor Trustee does not take office within 30 days
after the retiring Trustee resigned or is removed, the retiring Trustee, the
Company or the Holders of at least 10% in principal amount of the Securities
may petition any court of competent jurisdiction for the appointment of a
successor Trustee.

                 If the Trustee fails to comply with Section 7.10, any Holder
may petition any court of competent jurisdiction for the removal of the Trustee
and the appointment of a successor Trustee.

                 A successor Trustee shall deliver a written acceptance of its
appointment to the retiring Trustee, the Guarantors and to the Company.
Thereupon the resignation or removal of the retiring Trustee shall become
effective and the successor Trustee shall have all the rights, powers and
duties of the Trustee under this Indenture.  The successor Trustee shall mail a
notice of its succession to Securityholders.  The retiring Trustee shall
promptly transfer all property held by it as Trustee to the successor Trustee,
subject to the lien provided for in Section 7.07.

SECTION 7.09     SUCCESSOR TRUSTEE BY MERGER, ETC.

                 If the Trustee consolidates, merges or converts into, or
transfers all or substantially all of its corporate trust business to another
corporation, the successor corporation without any further act shall be the
successor Trustee.

SECTION 7.10     ELIGIBILITY; DISQUALIFICATION.

                 This Indenture shall always have a Trustee who satisfies the
requirements of TIA Section 310(a)(1).  The Trustee shall always have a
combined capital and surplus of at least $50,000,000 as set forth in its most
recent published annual report of condition.  The Trustee shall comply with TIA
Section 310(b), including the optional provision permitted by the second
sentence of TIA Section 310(b)(9).
                        




                                       39
<PAGE>   46
SECTION 7.11     PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY.

                 The Trustee shall comply with TIA Section  311(a), excluding
 any creditor relationship listed in TIA Section 311(b).  A Trustee who has
 resigned or been removed shall be subject to TIA Section  311(a) to the extent
 indicated.


                                   ARTICLE 8.

                             DISCHARGE OF INDENTURE

SECTION 8.01     TERMINATION OF COMPANY'S AND GUARANTORS' OBLIGATIONS.

                 All of the Company's and each Guarantor's obligations under
this Indenture shall terminate when all Securities previously authenticated and
delivered (other than mutilated, destroyed, lost or stolen Securities which
have been replaced or paid) have been delivered to the Trustee for cancellation
or if:

                 (1)      the Securities mature within six months or all of
         them are to be called for redemption within six months;

                 (2)      the Company or any Guarantor irrevocably deposits in
         trust with the Trustee, pursuant to an irrevocable trust and security
         agreement in form and substance reasonably satisfactory to the
         Trustee, money or U.S. Government Obligations sufficient to pay
         principal of and interest on the Securities to maturity or redemption,
         as the case may be, and all other sums payable by the Company to the
         Holders of the Securities hereunder.  The Company or any Guarantor may
         make the deposit only during the six-month period.  Immediately after
         making the deposit, the Company shall give notice of such event to the
         Holders;

                 (3)      the Company has paid or caused to be paid all sums
         then payable by the Company to the Trustee hereunder as of the date of
         such deposit;

                 (4)      the Company has delivered to the Trustee an Officer's
         Certificate stating that all conditions precedent provided for herein
         relating to the satisfaction and discharge of this Indenture have been
         complied with; and

                 (5)      the Company has delivered to the Trustee either (i)
         an unqualified Opinion of Counsel, stating that the Holders of the
         Securities (a) will not recognize income, gain or loss for Federal
         income tax purposes as a result of such deposit (and the defeasance
         contemplated in connection therewith) and (b) will be subject to
         Federal income tax on the same amounts and in the same manner and at
         the same times as would have been the case if such deposit and
         defeasance had not occurred, or (ii) an applicable favorable ruling to
         that effect received from or published by the Internal Revenue
         Service.





                                       40
<PAGE>   47
Notwithstanding the foregoing, the Company's obligations in Sections 2.03,
2.04, 2.05, 2.06, 2.07, 4.01, 7.07, 7.08 and 8.03 (and each Guarantor's
obligation in respect of Sections 4.01 and 7.07) shall survive until the
Securities are no longer outstanding, and the Company's obligations pursuant to
Sections 7.07 and 8.03 (and each Guarantor's obligations in respect of Section
7.07) shall survive any such termination.

                 After a deposit pursuant to this Section 8.01, the Trustee
upon request shall acknowledge in writing the discharge of the Company's and
each Guarantor's obligations under the Securities, the Guarantee and this
Indenture except for those surviving obligations specified above.

                 In order to have money available on a payment date to pay
principal or interest on the Securities, the U.S.  Government Obligations shall
be payable as to principal or interest on or before such payment date in such
amounts as will provide the necessary money.

SECTION 8.02     APPLICATION OF TRUST MONEY.

                 The Trustee shall hold in trust money or U.S. Government
Obligations deposited with it pursuant to Section 3.05, 3.08, 3.09 and 8.01.
It shall apply the deposited money and the money from U.S. Government
Obligations through the Paying Agent and in accordance with this Indenture to
the payment of principal of and interest on the Securities.

SECTION 8.03     REPAYMENT TO COMPANY OR GUARANTORS.

                 The Trustee and the Paying Agent shall promptly pay to the
Company, or if deposited with the Trustee by a Guarantor, to such Guarantor
upon request any excess money or securities held by them at any time.  The
Trustee and the Paying Agent shall pay to the Company, or if deposited with the
Trustee by a Guarantor, to such Guarantor, upon request any money held by them
for the payment of principal or interest that remains unclaimed for two years;
provided, however, that the Trustee or such Paying Agent, before being required
to make any such repayment, may, at the expense of the Company, cause to be
published once in a newspaper of general circulation in The City of New York or
cause to be mailed to each Holder, a notice stating that such money remains and
that, after a date specified therein, which shall not be less than 30 days from
the date of such publication or mailing, any unclaimed balance of such money
then remaining will be repaid to the Company.  After payment to the Company or
such Guarantor, Securityholders entitled to the money must look to the Company
or such Guarantor for payment as general creditors unless an applicable
abandoned property law designates another Person.

SECTION 8.04     REINSTATEMENT.

                 If the Trustee or Paying Agent is unable to apply any money or
U.S. Government Obligations in accordance with Section 8.01 by reason of any
legal proceeding or by reason of any order or judgment of any court or
governmental authority enjoining,





                                       41
<PAGE>   48
restraining or otherwise prohibiting such application, the Company's and each
Guarantor's obligations under this Indenture, the Guarantee and the Securities
shall be revived and reinstated as though no deposit has occurred pursuant to
Section 8.01 until such time as the Trustee or Paying Agent is permitted to
apply all such money or U.S. Government Obligations in accordance with Section
8.01; provided, however, that if the Company or any Guarantor has made any
payment of interest on or principal of any Securities because of the
reinstatement of its obligations, the Company or such Guarantor shall be
subrogated to the rights of the Holders of such Securities to receive such
payment from the money or U.S. Government Obligations held by the Trustee or
Paying Agent.


                                   ARTICLE 9.

                                   AMENDMENTS

SECTION 9.01     WITHOUT CONSENT OF HOLDERS.

                 The Company, with the consent of the Trustee, may amend or
supplement this Indenture, the Guarantee or the Securities without notice to or
the consent of any Securityholder:

                 (1)      to cure any ambiguity, omission, defect or
         inconsistency;
         
                 (2)      to comply with Section 5.01;

                 (3)      to provide for uncertified securities; or

                 (4)      to make any change that does not adversely affect the
         rights of any Securityholder.

SECTION 9.02     WITH CONSENT OF HOLDERS.

                 The Company, with the consent of the Trustee, and each
Guarantor affected by any amendment or supplement to the Guarantee, may amend
or supplement this Indenture, the Guarantee or the Securities without notice to
any Securityholder but with the written consent of the Holders of at least 66
2/3% (except as hereinafter provided) of the principal amount of the
Securities.  Subject to Section 6.07, the Holders of a majority (except as
hereinafter provided) in principal amount of the Securities may waive
compliance by the Company or any Guarantor with any provision of this
Indenture, the Guarantee or the Securities without notice to any
Securityholder.  However, without the consent of each Securityholder affected,
no amendment, supplement or waiver, including a waiver pursuant to Section
6.04, may:

                 (1)      reduce the amount of Securities whose Holders must
         consent to an amendment, supplement or waiver;





                                       42
<PAGE>   49
                 (2)      reduce the rate of or change the time for payment of
         interest on any Security;

                 (3)      reduce the principal of or change the fixed maturity
         of any Security or alter the redemption provisions with respect
         thereto;

                 (4)      waive a default in the payment of principal of,
         premium, if any, or interest on any Security;

                 (5)      make any Security payable in money other than that
         stated in the Security;

                 (6)      make any change in Section 6.04, Section 6.07 or this
         Section 9.02; or

                 (7)      release any Guarantor from its liability under the 
         Guarantee.

                 Promptly after an amendment under this Section becomes
effective, the Company shall mail to the Securityholders a notice briefly
describing the amendment.

                 It shall not be necessary for the consent of the Holders under
this Section to approve the particular form of any proposed amendment or
supplement, but it shall be sufficient if such consent approves the substance
thereof.

SECTION 9.03     COMPLIANCE WITH TRUST INDENTURE ACT.

                 Every amendment to this Indenture, the Guarantee or the
Securities shall comply with the TIA as then in effect.

SECTION 9.04     REVOCATION AND EFFECT OF CONSENTS.

                 Until an amendment, supplement or waiver becomes effective, a
consent to it by a Holder of a Security is a continuing consent by the Holder
and every subsequent Holder of a Security or portion of a Security that
evidences the same debt as the consenting Holder's Security, even if notation
of the consent is not made on any Security.  However, any such Holder or
subsequent Holder may revoke the consent as to his Security or portion of a
Security if the Trustee receives the notice of revocation before the date the
amendment, supplement or waiver becomes effective.  An amendment, supplement or
waiver becomes effective in accordance with its terms.

                 After an amendment, supplement or waiver becomes effective
with respect to the Securities, it shall bind every Securityholder unless it
makes a change described in any of clauses (1) through (6) of Section 9.02.  In
that case the amendment, supplement or waiver shall bind each Holder of a
Security who has consented to it and, provided that notice of such amendment,
supplement or waiver is reflected on a Security that evidences the same





                                       43
<PAGE>   50
debt as the consenting Holder's Security, every subsequent Holder of a Security
or portion of a Security that evidences the same debt as the consenting
Holder's Security.

SECTION 9.05     NOTATION ON OR EXCHANGE OF SECURITIES.

                 If an amendment, supplement or waiver changes the terms of a
Security, the Trustee may require the Holder of the Security to deliver it to
the Trustee.  The Trustee may place an appropriate notation on the Security
about the changed terms and return it to the Holder.  Alternatively, if the
Company or the Trustee so determines, the Company in exchange for the Security
shall issue and the Trustee shall authenticate a new Security that reflects the
changed terms.

SECTION 9.06     TRUSTEE PROTECTED.

                 The Trustee need not sign any amendment, supplement or waiver
authorized pursuant to this Article that adversely affects the Trustee's
rights.  The Trustee shall be entitled to receive and rely upon an Opinion of
Counsel and an Officer's Certificate from the Company and any appropriate
Guarantor that any supplemental indenture complies with the Indenture.


                                  ARTICLE 10.

                                   GUARANTEE

SECTION 10.01    GUARANTEE.

                 Subject to the provisions of this Article 10, each Guarantor
hereby unconditionally guarantees to each Holder of a Security authenticated
and delivered by the Trustee (a) the due and punctual payment of the principal
of and interest on such Security, when and as the same shall become due and
payable, whether at maturity, by acceleration or otherwise and the due and
punctual payment of interest on the overdue principal of and interest, if any,
on the Securities, to the extent lawful, and (b) in the case of any extension
of time of payment or renewal of any Securities or any of such other
obligations, that the same will be promptly paid in full when due or performed
in accordance with the terms of the extension or renewal, at stated maturity,
by acceleration or otherwise.  Each Guarantor hereby agrees that its
obligations hereunder shall be absolute and unconditional, irrespective of, and
shall be unaffected by, any invalidity, irregularity or unenforceability or any
such Security or this Indenture, any failure to enforce the provisions of any
such Security or this Indenture, any waiver, modification or indulgence granted
to the Company with respect thereto, by the Holder of such Security or the
Trustee, or any other circumstances which may otherwise constitute a legal or
equitable discharge of a surety or guarantor.  Each Guarantor hereby waives
diligence, presentment, filing of claims with a court in the event of merger or
bankruptcy of the Company, any right to require a proceeding first against the
Company, the benefit of discussion, protest or notice with respect to any such
Security or the





                                       44
<PAGE>   51
Indebtedness evidenced thereby and all demands whatsoever (except as specified
above), and covenant that this Guarantee will not be discharged as to any such
Security except by payment in full of the principal thereof and interest
thereon and as provided in Sections 5.02 and 8.01.  Each Guarantor further
agrees that, as between such Guarantor, on the one hand, and the Holders and
the Trustee, on the other hand, (a) the maturity of the obligations guaranteed
hereby may be accelerated as provided in Article 6 hereof for the purposes of
this Guarantee, notwithstanding any stay, injunction or other prohibition
preventing such acceleration in respect of the obligations guaranteed hereby,
and (b) in the event of any declarations of acceleration of such obligations as
provided in Article 6 hereof, such obligations (whether or not due and payable)
shall forthwith become due and payable by the Guarantor for the purpose of this
Guarantee.  In addition, without limiting the foregoing provisions, upon the
effectiveness of an acceleration under Article 6, the Trustee shall promptly
make a demand for payment on the Securities under the Guarantee provided for in
this Article 10 and not discharged.

                 Each Guarantor shall be subrogated to all rights of any Holder
of any Securities against the Company in respect of any amounts paid to any
such Holder by such Guarantor pursuant to the provisions of this Guarantee;
provided that such Guarantor shall not be entitled to enforce, or to receive
any payments arising out of or based upon, such right of subrogation until the
principal of and interest on all the Securities shall have been paid in full.

                 Notwithstanding the foregoing provisions of this Section
10.01, the Guarantee set forth in this Section 10.01 shall not be valid or
become obligatory for any purpose with respect to a Security until the
certificate of authentication on such Security shall have been been signed by
or on behalf of the Trustee.

SECTION 10.02    FURTHER ASSURANCES.

                 The Company and certain of its Subsidiaries have executed and
delivered and will execute and deliver all such instruments and documents, and
have done and will do all such acts and other things, at the Company's expense,
as may be necessary or desirable, or that the Trustee may reasonably request,
to give full force and effect to the Guarantee, in the case of the existence of
an Event of Default, to enable the Trustee to exercise and enforce the
Securityholders' rights and remedies with respect to the Guarantee.

SECTION 10.03    AUTHORIZATION OF ACTIONS TO BE TAKEN BY THE TRUSTEE UNDER THE
                 GUARANTEE.

                 The Trustee may, in its sole discretion and without the
consent of the Securityholders take all actions it deems necessary or
appropriate in order to (i) enforce any of the terms of the Guarantee and (ii)
collect and receive any and all amounts payable in respect of the obligations
of the Company hereunder.  Subject to the provisions of the Guarantee, the
Trustee shall have power to institute and to maintain such suits and





                                       45
<PAGE>   52
proceedings as it may deem expedient to preserve or protect its interests and
the interests of the Securityholders.

SECTION 10.04    AUTHORIZATION OF RECEIPT OF FUNDS BY THE TRUSTEE UNDER THE
                 GUARANTEE.

                 The Trustee is authorized to receive any funds for the benefit
of Securityholders distributed under the Guarantee, and to make further
distributions of such funds to the Holders according to the provisions of this
Indenture.

SECTION 10.05    TERMINATION OF GUARANTEE.

                 Upon the payment in full of all obligations of the Company
under this Indenture and the Securities, the Trustee shall, at the request of
the Company, deliver a certificate to the Subsidiaries which executed the
Guarantee stating that such obligations have been paid in full.

SECTION 10.06    EXECUTION OF GUARANTEE.

                 To evidence its guarantee to the Securityholders specified in
Section 10.01, each Guarantor hereby agrees to execute the Guarantee in
substantially the form above recited to be endorsed on each Security
authenticated and delivered by the Trustee.  Each Guarantor hereby agrees that
its Guarantee set forth in Section 10.01 shall remain in full force and effect
notwithstanding any failure to endorse on each Security a notation of such
Guarantee.  Each such Guarantee shall be signed on behalf of each Guarantor by
its Chairman of the Board, President or a Vice President, prior to the
authentication of the Security on which it is endorsed, and the delivery of
such Security by the Trustee, after the authentication thereof hereunder, shall
constitute due delivery of such Guarantee on behalf of such Guarantor.  Such
signatures upon the Guarantee may be manual or facsimile signatures of the
present, past or any future Officers of the appropriate Guarantor and may be
imprinted or otherwise reproduced on the Guarantee, and in case any such
Officer who shall have signed the Guarantee shall cease to be such Officer
before the Security on which such Guarantee is endorsed shall have been
authenticated and delivered by the Trustee or disposed of by the Company, such
Security nevertheless may be authenticated and delivered or disposed of as
though the Person who signed the Guarantee had not ceased to be such Officer of
the Guarantor.





                                       46
<PAGE>   53
                                  ARTICLE 11.

                                 MISCELLANEOUS

SECTION 11.01    TRUST INDENTURE ACT CONTROLS.

                 If any provision of this Indenture or the Guarantee limits,
qualifies or conflicts with another provision which is required to be included
in this Indenture by the TIA, the required provision shall control.

SECTION 11.02    NOTICES.

                 Any notice or communication by the Company, any Guarantor or
the Trustee to the other is duly given if in writing and when delivered in
person, mailed by first-class mail or by express delivery to the other's
address stated in this Section 11.02.  The Company, any Guarantor or the
Trustee by notice to the other may designate additional or different addresses
for subsequent notices or communications.

                 Any notice or communication to a Securityholder shall be
mailed by first-class mail to his or her address shown on the register kept by
the Registrar.  Failure to mail a notice or communication to a Securityholder
or any defect in it shall not affect its sufficiency with respect to other
Securityholders.

                 If a notice or communication is mailed in the manner provided
above within the time prescribed, it is duly given, whether or not the
addressee receives it.

                 If the Company mails a notice or communication to
Securityholders, it shall mail a copy to the Trustee and each Agent at the same
time.

                 All notices or communications shall be in writing.

                 The Company's and each Guarantor's address is:

                     -----------------------------
                     -----------------------------
                     -----------------------------
                     -----------------------------
 
                 The Trustee's address is:

                     -----------------------------
                     -----------------------------
                     -----------------------------
                     -----------------------------




                                       47
<PAGE>   54
SECTION 11.03    COMMUNICATION BY HOLDERS WITH OTHER HOLDERS.

                 Securityholders may communicate pursuant to TIA Section
312(b) with other Securityholders with respect to their rights under this
Indenture or the Securities.  The Company, the Guarantor, the Trustee, the
Registrar and anyone else shall have the protection of TIA Section 312(c).
                                                                  
SECTION 11.04    ACTION BY SECURITYHOLDERS.

                 Whenever in this Indenture it is provided that the Holders of
a specified percentage in aggregate principal amount of the Securities may take
any action (including the making of any demand or request, the giving of any
notice, consent or waiver or the taking of any other action), the fact that at
the time of taking any such action the Holders of such specified percentage
have joined therein may be evidenced by (a) any instrument or any number of
instruments of similar tenor executed by Holders of Securities in person or by
agent or proxy appointed in writing, or (b) by the record of the Holders of
Securities in favor thereof, at any meeting of Holders duly called and held in
accordance with the provisions of Article 12, or (c) by a combination of such
instrument or instruments and any such record of such meeting of Holders, but
in each case only to the extent that the Holders of Securities shall not have
revoked such action, consent or vote pursuant to Section 9.04 and Section
11.06.

SECTION 11.05    PROOF OF EXECUTION OF INSTRUMENTS AND OF HOLDING OF
                 SECURITIES.

                 Proof of the execution of any instrument by a Holder of
Securities or his or her agent or proxy and proof of the holding by any Person
of any of the Securities shall be sufficient if made in the following manner:

                 (1)      The fact and date of the execution by any such Person
         of any instrument may be proved by the certificate of any notary
         public or other officer of any jurisdiction authorized to take
         acknowledgements of deeds to be recorded in such jurisdiction that the
         Person executing such instrument acknowledged to him or her the
         execution thereof, or by an affidavit of a witness to such execution
         sworn to before any such notary or other such officer.  Such
         certificate or affidavit shall also constitute sufficient proof of the
         authority of the Person executing any instrument in cases where
         Securities are not held by Persons in their individual capacities.

                 (2)      The fact and date of execution of any such instrument
         may also be proved in any other manner which the Trustee deems
         sufficient.

                 (3)      The ownership of Securities shall be proved by the
         register of such Security or by a certificate of the Registrar
         thereof.





                                       48
<PAGE>   55
                 (4)      The Trustee shall not be bound to recognize any
         Person as a Securityholder unless his or her title to any Security is
         proved in the manner provided in this Article 11.

                 The Trustee may require such additional proof of any matter
referred to in this Section 11.05 as it shall deem necessary.

SECTION 11.06    REVOCATION OF CONSENTS; FUTURE HOLDERS BOUND.

                 Subject to Section 9.04, at any time prior to (but not after)
the evidencing to the Trustee, as provided in Section 11.04, of the taking of
any action by the Holders of the required percentage of the aggregate principal
amount of the Securities specified in this Indenture in connection with such
action, any Holder of a Security which is shown by the evidence to be included
in the Securities the Holders of which have consented to such action may, by
filing written notice with the Trustee at its principal office and upon proof
of holding as provided in Section 11.05, revoke such action so far as concerns
such Security.  Except as aforesaid, any such action taken by the Holder of any
Security shall be conclusive and binding upon such Holder and upon all future
holders and owners of such Security and of any Security issued in exchange or
substitution therefor, irrespective of whether or not any notation in regard
thereto is made upon such Security.  Any action taken by the Holders of the
required percentage of the aggregate principal amount of the Securities
specified in this Indenture in connection with such action shall be conclusive
and binding upon the Company, the Trustee and the holders of all the
Securities.

SECTION 11.07    OBLIGATION TO DISCLOSE BENEFICIAL OWNERSHIP OF SECURITIES.

                 All Securities shall be held and owned upon the express
condition that, upon demand of any regulatory agency having jurisdiction over
the Company or any Guarantor, and pursuant to law or regulation empowering such
agency to assert such demand, any registered Holder shall disclose to such
agency the identity of the beneficial owner of all Securities held thereby.

SECTION 11.08    CERTIFICATE AND OPINION AS TO CONDITIONS PRECEDENT.

                 Upon any request or application by the Company or any
Guarantor to the Trustee to take any action under this Indenture the Company or
such Guarantor shall furnish to the Trustee:

                 (1)      an Officer's Certificate stating that, in the opinion
         of the signer, all conditions precedent, if any, provided for in this
         Indenture relating to the proposed action have been complied with; and

                 (2)      an Opinion of Counsel stating that, in the opinion of
         such counsel, all such conditions precedent have been complied with.





                                       49
<PAGE>   56
                 Each signer of an Officer's Certificate or an Opinion of
Counsel may (if so stated) rely upon an Opinion of Counsel as to legal matters
and an Officer's Certificate as to factual matters if such signer reasonably
and in good faith believes in the accuracy of the document relied upon.

SECTION 11.09    STATEMENTS REQUIRED IN CERTIFICATE OR OPINION.

                 Each certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include:

                 (1)      a statement that the Person making such certificate
         or opinion has read such covenant or condition;
         
                 (2)      a brief statement as to the nature and scope of the
         examination or investigation upon which the statements or opinions
         contained in such certificate or opinion are based;

                 (3)      a statement that, in the opinion of such Person, he
         or she has made such examination or investigation as is necessary to
         enable such Person to express an informed opinion as to whether or not
         such covenant or condition has been complied with; and

                 (4)      a statement as to whether or not, in the opinion of
         such Person, such condition or covenant has been complied with.

SECTION 11.10    RULES BY TRUSTEE AND AGENTS.

                 The Trustee may make reasonable rules for action by or at a
meeting of Securityholders.  The Registrar or Paying Agent may make reasonable
rules and set reasonable requirements for their respective functions.

SECTION 11.11    LEGAL HOLIDAYS.

                 A "Legal Holiday" is a Saturday, a Sunday or a day on which
banking institutions are not required to be open in The City of New York, in
the State of New York or in the city in which the Trustee or any Paying Agent
under this Indenture administers its corporate trust business.  If a payment
date is a Legal Holiday at a place of payment, payment may be made at that
place on the next succeeding day that is not a Legal Holiday, and no interest
shall accrue on that payment for the intervening period.

                 A "Business Day" is a day other than a Legal Holiday.





                                       50
<PAGE>   57
SECTION 11.12    NO RECOURSE AGAINST OTHERS.

                 All liability of any director, officer, employee or
stockholder, as such, of the Company or any Guarantor with respect to the
Securities is waived and released.

SECTION 11.13    DUPLICATE ORIGINALS.

                 The parties may sign any number of copies of this Indenture.
Each signed copy shall be an original, but all of them together represent the
same agreement.

SECTION 11.14    GOVERNING LAW.

                 The laws of the State of New York, without regard to
principles of conflicts of law, shall govern this Indenture and the Securities.

SECTION 11.15    NO ADVERSE INTERPRETATION OF OTHER AGREEMENTS.

                 This Indenture may not be used to interpret another indenture,
loan or debt agreement of the Company, any Guarantor or a Subsidiary.  Any such
indenture, loan or debt agreement may not be used to interpret this Indenture.

SECTION 11.16    SUCCESSORS.

                 All agreements of the Company, and each Guarantor in this
Indenture and the Securities shall bind its successors.  All agreements of the
Trustee in this Indenture shall bind its successors.

SECTION 11.17    SEPARABILITY.

                 In case any provision in this Indenture or in the Securities
shall be invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions shall not in any way be affected or
impaired thereby and a Holder shall have no claim therefor against any party
hereto.

SECTION 11.18    TABLE OF CONTENTS, HEADINGS, ETC.

                 The Table of Contents, Cross-Reference Table and headings of
the Articles and Sections of this Indenture have been inserted for convenience
of reference only, are not to be considered a part hereof, and shall in no way
modify or restrict any of the terms or provisions hereof.





                                       51
<PAGE>   58
                                  ARTICLE 12.

                       MEETINGS OF HOLDERS OF SECURITIES

SECTION 12.01    PURPOSES OF MEETINGS.

                 A meeting of Holders of Securities may be called at any time
and from time to time pursuant to the provisions of this Article 12 for any of
the following purposes:

                 (a)      to give any notice to the Company, any Guarantor or
to the Trustee, or to give any direction to the Trustee, or to waive any
non-performance hereunder, and its consequences, or to take any other action
authorized to be taken by Holders of Securities pursuant to any of the
provisions of this Indenture;

                 (b)      to remove the Trustee and appoint a successor trustee
pursuant to the provisions of Section 7.08;

                 (c)      to consent to the execution of an indenture or
indentures supplemental hereto pursuant to the provisions of Article 9;

                 (d)      to take any other action authorized to be taken by or
on behalf of the Holders of any specified aggregate principal amount of the
Securities under any other provision of this Indenture or under applicable law.

SECTION 12.02    CALL OF MEETINGS BY TRUSTEE.

                 The Trustee may at any time call a meeting of Holders of
Securities to take any action specified in Section 12.01, to be held at such
time and at such place in the State of New York, as the Trustee shall
determine.  Notice of each meeting of the Holders of Securities, setting forth
the time and the place of such meeting and, in general terms, the action
proposed to be taken at such meeting, shall be mailed by the Trustee to the
Holders of the Securities, not less than 20 nor more than 60 days prior to the
date fixed for the meeting, at their last addresses as they shall appear on the
register of the Securities.

SECTION 12.03    CALL OF MEETINGS BY COMPANY OR SECURITY HOLDERS.

                 If at any time the Company, pursuant to a resolution of its
Board of Directors, or the holders of at least twenty percent in aggregate
principal amount of the Securities then outstanding, shall have requested the
Trustee to call a meeting of Holders of Securities to take any action
authorized in Section 12.01, by written request setting forth in reasonable
detail the action proposed to be taken at the meeting, and the Trustee shall
not have mailed notice of such meeting within twenty days after receipt of such
request, then the Company or the Holders of Securities in the amount above
specified, as the case may be, may determine the time and the place in the
State of New York for such meeting, and may call such meeting by mailing notice
thereof as provided in Section 12.02.





                                       52
<PAGE>   59
SECTION 12.04    PERSONS ENTITLED TO VOTE AT MEETING.

                 To be entitled to vote at any meeting of Holders of
Securities, a person shall (a) be a Holder of Securities or (b) be a person
appointed by an instrument in writing as proxy by a Holder of Securities.  The
only persons who shall be entitled to be present or speak at any meeting of the
Holders of the Securities shall be the persons entitled to vote at such meeting
and their counsel and any representatives of the Company and its counsel.

SECTION 12.05    REGULATIONS FOR MEETING.

                 Notwithstanding any other provisions of this Indenture, the
Trustee may make such reasonable regulations as it may deem advisable for any
meeting of Holders of the Securities in regard to the appointment of proxies,
the proof of the holding of Securities, the appointment and duties of
inspectors of votes, the submission and examination of proxies and other
evidence of the right to vote, and such other matters concerning the conduct of
the meeting as it shall think fit.  Except as otherwise permitted or required
by any such regulations, the holding of Securities shall be proved in the
manner specified in Section 11.05 and the appointment of any proxy shall be
proved in the manner specified in such Section 11.05 or by having the signature
of the person executing the proxy witnessed or guaranteed by any bank, banker,
trust company or New York Stock Exchange, Inc. member firm satisfactory to the
Trustee.

                 The Trustee shall, by an instrument in writing, appoint a
temporary chairman of the meeting, unless the meeting shall have been called by
the Company or by Holders of the Securities as provided in Section 12.03, in
which case the Company or the Holders of the Securities calling the meeting, as
the case may be, shall in like manner appoint a temporary chairman, and a
permanent chairman and a permanent secretary of the meeting shall be elected by
vote of the Holders of a majority in principal amount of the Securities
represented at the meeting and entitled to vote.

                 At any meeting of Holders of Securities, the presence of
persons holding or representing Securities in an aggregate principal amount
sufficient to take action upon the business for the transaction of which such
meeting was called shall be necessary to constitute a quorum; but, if less than
a quorum be present, the persons holding or representing a majority in
aggregate principal amount of the Securities represented at the meeting may
adjourn such meeting with the same effect, for all intents and purposes, as
though a quorum had been present.





                                       53
<PAGE>   60
                                   SIGNATURES

                 IN WITNESS WHEREOF, the parties hereto have caused this
Indenture to be duly executed, and their respective corporate seals to be
hereunto affixed and attested, all as of the day and year first above written.

                           LONE STAR INDUSTRIES, INC.


                                        By:
                                           ------------------------------
                                           Title:


[SEAL]

Attest:


- ---------------------------------
Title:


                                        ------------ BANK


                                        By:
                                           ------------------------------
                                           Title:

[SEAL]

Attest:


- ---------------------------------
Title:


                                  [Guarantors]





                                       54
<PAGE>   61
       
                                                                       
                                                                    EXHIBIT A
REGISTERED                       [Face of Security]                REGISTERED
NUMBER                                                               DOLLARS


                            LONE STAR INDUSTRIES, INC               ........
 
                            10% SENIOR NOTE DUE 2003

                 LONE STAR INDUSTRIES, INC., a Delaware corporation (herein
called the "Company"), for value received, hereby promises to pay to
- --------------- or registered assigns, the principal sum of ---------------
Dollars on --------,* 2003, and to pay interest thereon as provided on the
reverse hereof, until the principal hereof is paid or duly provided for.

Interest Payment Dates:   ----------- and ---------- of each year, commencing
- ----------, 1994

Record Dates:  -------------

                 The provisions on the back of this certificate are
incorporated as if set forth on the face hereof.

                 IN WITNESS WHEREOF, LONE STAR INDUSTRIES, INC. has caused this
instrument to be duly signed under its corporate seal.

[SEAL]                            LONE STAR INDUSTRIES, INC.


                                  By:
                                     -----------------------------------
                                     Title:


                                  By:
                                     -----------------------------------
                                     Title:


TRUSTEE'S CERTIFICATE OF AUTHENTICATION

This is one of the Securities referred
to in the within-mentioned Indenture.


- ------------ BANK
                                           as Trustee

By:      
   -----------------------------------------------------
                   Signatory


Dated:  
      --------------------------------------------------
                                              
- ------------
* [7 months] after anniversary of Effective Date





                                      A-1
<PAGE>   62
                             [REVERSE OF SECURITY]

                           LONE STAR INDUSTRIES, INC.

                            10% SENIOR NOTE DUE 2003

                 1.       Interest.  Lone Star Industries, Inc., a Delaware
corporation (the "Company"), promises to pay interest on the principal amount
of this Security at the rate per annum shown above.  The Company will pay
interest semi-annually in arrears on - -------- and --------- of each year,
commencing --------, 1994.  Interest on the Securities will accrue from the
most recent date to which interest has been paid (or, if no interest has been
paid, from the Effective Date, as defined in the below-mentioned Indenture).
Interest on overdue principal shall accrue at the rate per annum of 11% from
the due date until paid in full.  Interest shall be computed on the basis of a
360-day year of 12 30-day months.

                 2.       Method of Payment.  The Company will pay interest on
the Securities (except defaulted interest) to the persons who are registered
Holders of Securities at the close of business on the record date set forth on
the face of this Security next preceding the applicable interest payment date.
Holders must surrender Securities to a Paying Agent to collect principal
payments.  The Company will pay principal and interest in money of the United
States that at the time of payment is legal tender for payment of public and
private debts.  However, the Company may pay principal and interest by check
payable in such money.  It may mail an interest check to a Holder's registered
address.

                 3.       Paying Agent and Registrar.  Initially, -------- Bank
(the "Trustee") will act as Paying Agent and Registrar.  The Company may change
any Paying Agent, Registrar or co-registrar without notice.  The Company may
act in any such capacity.

                 4.       Indenture.  The Company has issued the Securities
under an Indenture dated as of ------------ (the "Indenture") between the
Company and the Trustee.  The terms of the Securities include those stated in
the Indenture and those made part of the Indenture by reference to the Trust
Indenture Act of 1939 (15 U.S. Code Sections 77aaa-77bbbb) (the "Act")
as in effect on the date of the Indenture.  The Securities are subject to all
such terms, and Securityholders are referred to the Indenture and the Act for a
statement of such terms.  The Securities are obligations of the Company limited
to up to $75,000,000 aggregate principal amount (except for Securities issued
in substitution for destroyed, mutilated, lost or stolen Securities).  Terms
used herein which are defined in the Indenture have the meanings assigned to
them in the Indenture.

                 5.       Voluntary Prepayments or Redemption.  The Securities
may be redeemed at the option of the Company in whole at any time or in part
from time to time at the principal amount plus accrued and unpaid interest to
the date of such optional redemption.  The Securities may also be redeemed or
prepaid by purchase by the Company on the open market from time to time without
penalty or premium.

                 6.       Sinking Fund.  The Company must make three payments
of $10,000,000 each into a specified sinking fund provided for in the
Indenture.  The first payment of $10,000,000 shall be made on [--------],*
2000, the second on [--------], 2001, and the third on [--------], 2002.
Payments pursuant to this paragraph shall be made to the in





                                      A-2
<PAGE>   63
accordance with the provisions of the Indenture.  The amount of any sinking
fund payment the Company is required to make may be reduced by the principal
amount of any Securities that the Company has optionally redeemed or purchased
and delivered to the Trustee for cancellation and that have not been previously
credited against redemptions or purchases upon a Sale of Assets or required
sinking fund payments.

                 7.       Mandatory Redemption Upon Sale of Assets.  Within 120
days after the consummation of a Sale of Assets, the Company shall deposit with
the Trustee the Net Proceeds (after setting aside a sufficient amount of such
proceeds as to leave the Company with $5 million in net working capital) and
apply them to redeem that principal amount of Securities such that the
aggregate Redemption Price, plus accrued and unpaid interest to the redemption
date, of such Securities equals such Net Proceeds (after setting aside such
working capital reserves).  With the approval of the Board of Directors, the
Company may before or after such Sale of Assets, in lieu of making such deposit
and redemptions provided for in this Section 7, in whole or in part, the
Company may deposit with the Trustee for cancellation some or all of the
Securities acquired through open market purchases of Securities, in a principal
amount equal to the principal amount of securities which could have been
redeemed with such amount of Net Proceeds.  The principal amount of Securities
that the Company is otherwise required to redeem or purchase for cancellation
upon any Sale of Assets may be reduced based on the Securities that the Company
has optionally redeemed or purchased and so delivered to the Trustee for
cancellation and that have not been previously credited against redemptions or
purchases upon a Sale of Assets or required sinking fund payments.

                 8.       Guarantee.  The Securityholders are the beneficiaries
of a Guarantee made by certain Subsidiaries of the Company.  A Securityholder
by accepting this Note agrees to all of the terms and conditions of the
Guarantee.

                 9.       Denominations, Transfer, Exchange.  The Securities
are in registered form without coupons in denominations of $1,000 and whole
multiples of $1,000.  The transfer of Securities may be registered and
Securities may be exchanged as provided in the Indenture.  The Registrar may
require a Holder, among other things, to furnish appropriate endorsements and
transfer documents.  No service charge shall be made for any such registration
or transfer or exchange, but the Company may require payment of a sum
sufficient to cover any tax or other governmental charge payable in connection
therewith.  The Registrar need not exchange or register the transfer of any
Security selected for redemption in whole or in part (except the unredeemed
portion of securities being redeemed in part).  Also, it need not exchange or
register the transfer of any Securities for a period of 15 days before a
selection of Securities to be redeemed.

                 10.      Persons Deemed Owners.  The registered Holder of this
Note may be treated as its owner for all purposes.

                 11.      Merger or Consolidation.  The Company and its
Restricted Subsidiaries, as a whole, may not consolidate or merge with or into,
or sell, assign, transfer or lease all or substantially all of its assets to
another person unless: (i) the person is an entity organized and existing under
the laws of the United States, any state thereof or the District of Columbia;
and (ii) such entity assumes by supplemental indenture all the obligations of
the Company under the Securities and the Indenture.





                                      A-3
<PAGE>   64
                 12.      Amendments and Waivers.  Subject to certain
exceptions, the Indenture or the Securities may be amended with the consent of
the Holders of at least 66-2/3% of the principal amount of the Securities
outstanding, and certain existing defaults may be waived with the consent of
the Holders of 66-2/3% of the principal amount of the Securities.  Without the
consent of any Securityholder, the Indenture or the Securities may be amended
to cure any ambiguity, omission, defect or inconsistency, to provide for
uncertificated Securities in addition to certificated Securities, to comply
with Section 5.01 of the Indenture or to make any change that does not
adversely affect the right of any Securityholder.

                 13.      Defaults and Remedies.  An Event of Default is:
default in the payment of interest on any Security when the same becomes due
and payable, whether at maturity, in connection with any redemption, by
acceleration or otherwise, and such default continues for a period of 30 days;
default in the payment of the principal of any Security when the same becomes
due and payable, whether at maturity, in connection with any redemption, by
acceleration or otherwise, which failure continues for a period of 30 days
after either notice shall have been given to the Company or the date on which
the Company had Actual Knowledge of such failure; or failure by the Company or
any Restricted Subsidiary to observe or perform in any material respect any of
its other covenants or agreements in the Securities or the Indenture, which
further continues for a period of 30 days after either notice shall have been
given to the Company or the date on which the Company had Actual Knowledge of
such failure; failure by the Company or any of its Restricted Subsidiaries to
pay when due any principal or interest on any Indebtedness with an aggregate
outstanding principal amount in excess of $5 million, which default continues
for the greater of any period of grace applicable thereto or 60 days from the
date of such default; a default or event of default, as defined in one or more
indentures, agreements or other instruments evidencing or under which the
Company or any of its Restricted Subsidiaries individually or collectively have
outstanding at least $5 million aggregate principal amount of Indebtedness and
such Indebtedness shall have been accelerated so that it is due and payable
prior to the date on which it would otherwise have become due and payable, and
such acceleration shall not be rescinded or annulled within 60 days after
either notice shall have been given to the Company or the Company had actual
knowledge of such acceleration, unless cured or waived; entry of one or more
final judgments against the Company or any of its Restricted Subsidiaries for
payments of money which in the aggregate exceed $5 million, by a court of
competent jurisdiction and such judgments are not rescinded, annulled, stayed
or discharged within 90 days; the Company and its Restricted Subsidiaries,
taken as a whole, shall become insolvent; the commencement of a voluntary case
under the Federal Bankruptcy law; or the occurrence of certain other events
under the Bankruptcy law, including but not limited to the entry of a judgment
for relief in respect of the Company or any of its material Restricted
Subsidiaries by a court of competent jurisdiction which remains unstayed and in
effect for 90 days.

                 14.      Trustee Dealings with Company.  -------- Bank, the
Trustee under the Indenture, or any banking institution serving as successor
Trustee thereunder, in its individual or any other capacity, may make loans to,
accept deposits from, and perform services for the Company or its Affiliates
and Restricted Subsidiaries, and may otherwise deal with the Company or its
Affiliates and Restricted Subsidiaries, as if it were not Trustee.





                                      A-4
<PAGE>   65
                 15.      No Recourse Against Others.  No director, officer,
employee, or stockholder, as such, of the Company shall have any liability for
any obligations of the Company under the Securities or the Indenture or for any
claim based on, in respect of or by reason of such obligations or their
creation.  Each Securityholder by accepting a Security waives and releases all
such liability.  The waiver and release are part of the consideration for the
issue of the Securities.

                 16.      Authentication.  This Security shall not be valid
until authenticated by the manual signature of the Trustee or an authenticating
agent.

                 17.      Abbreviations.  Customary abbreviations may be used
in the name of a Securityholder or an assignee, such as:  TEN COM (= tenants in
common), TEN ENT (= tenants by the entireties,) JT TEN (=joint tenants with
right of survivorship and not as tenants in common), CUST (= Custodian), and
U/G/M/A (= Uniform Gifts to Minors Act).

                 THE COMPANY WILL FURNISH TO ANY SECURITYHOLDER UPON WRITTEN
REQUEST AND WITHOUT CHARGE A COPY OF THE INDENTURE.  REQUESTS MAY BE MADE TO:
LONE STAR INDUSTRIES, INC.


                           [FORM OF NOTATION ON NOTE
                             RELATING TO GUARANTEE]


                                   GUARANTEE

                 Each of the undersigned (hereinafter referred to as a
"Guarantor," which term includes any successor person under the Indenture (the
"Indenture") referred to in the Note upon which this notation is endorsed), has
unconditionally guaranteed the due and punctual payment of the principal of and
interest on the Notes, whether at maturity, by acceleration or otherwise, and
the due and punctual payment of interest on the overdue principal of and
interest, if any, on the Notes, to the extent lawful, all in accordance with
the terms set forth in Article 10 of the Indenture and (ii) in case of any
extension of time of payment or renewal of any Notes or any of such other
obligations, that the same will be promptly paid in full when due or performed
in accordance with the terms of the extension or renewal, whether at stated
maturity, by acceleration or otherwise.

                 The obligations of each Guarantor to the Holders of the Notes
and to the Trustee pursuant to the Guarantee and the Indenture are expressly
set forth in Article 10 of the Indenture and reference is hereby made to such
Indenture for the precise terms of the Guarantee.

                 No director, officer, employee or stockholder, as such, past,
present or future, of any Guarantor or any of its Subsidiaries shall have any
personal liability under the Guarantee by reason of his or its status as such
director, officer, employee or stockholder.

                 The Guarantee shall not be valid or obligatory for any purpose
until the certificate of authentication on the Notes upon which this Guarantee
is noted shall have been





                                      A-5
<PAGE>   66
executed by the Trustee under the Indenture by the manual or facsimile
signature of one of its authorized officers.

                                           [GUARANTORS]



                                           By:
                                              ---------------------------





                                      A-6
<PAGE>   67
         ASSIGNMENT FORM

To assign this Security, fill in the form below:

I or we assign and transfer this Security to:

- ----------------------------------------------------

- ----------------------------------------------------

- ----------------------------------------------------
(Print or type assignee's name, address and zip code)

- ----------------------------------------------------

- ----------------------------------------------------
   (Insert Assignee's Soc. Sec. or Tax I.D. No.)


and irrevocably appoint ---------------------------
agent to transfer this Security on the books of the
Company.  The agent may substitute another to act for him or her.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Date:                              Signature(s):
     --------------                             ----------------------------- 
                                                
 
                                                ------------------------------
                                                (Sign exactly as your name(s) 
                                                appear on the other side of 
                                                this Security)                  

Signature(s) guaranteed by:
                                        -------------------------------------
                                        (All signatures must be guaranteed by a
                                        member of a national securities
                                        exchange or of the National
                                        Association of Securities Dealers,
                                        Inc. or by a commercial bank or
                                        trust company located in the United
                                        States)





                                      A-7

<PAGE>   1

                                                                    EXHIBIT T3E

 
                         UNITED STATES BANKRUPTCY COURT
                         SOUTHERN DISTRICT OF NEW YORK
 
- -------------------------------------------
                                           )
In re:                                     )
                                           )
NEW YORK TRAP ROCK CORPORATION,            )
LONE STAR INDUSTRIES, INC.,                )
SAN-VEL CONCRETE CORPORATION,              )
NYTR TRANSPORTATION CORPORATION,           )
                                           )         Chapter 11
LONE STAR CEMENT INC.,                     )
                                           )         Case Nos. 90 B 21276 to
CONSTRUCTION MATERIALS COMPANY,            )
                                           )                   90 B 21286,
I.C. MATERIALS, INC.,                      )
                                           )                   90 B 21334 and
LONE STAR PRESTRESS CONCRETE, INC.,        )
                                           )                   90 B 21335 (HS)
LONE STAR PROPERTIES, INC.,                )
SOUTHERN AGGREGATES, INC.,                 )
                                           )         (Jointly Administered)
LONE STAR TRANSPORTATION CORPORATION,      )
LONE STAR BUILDING CENTERS, INC. and       )
LONE STAR BUILDING CENTERS                 )
(EASTERN) INC.,                            )
                                           )
                              Debtors.     )
                                           )
- -------------------------------------------
 
   MODIFIED AMENDED DISCLOSURE STATEMENT REGARDING DEBTORS' MODIFIED AMENDED
                      CONSOLIDATED PLAN OF REORGANIZATION
 
Dated: November 4, 1993
       New York, New York
<PAGE>   2
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
I.     INTRODUCTION...................................................................    1
       A.  Overview...................................................................    1
            1.   Introduction.........................................................    1
            2.   Summary of Distributions Under the Plan..............................    1
            3.   Funding of Plan -- Asset Dispositions................................    5
            4.   Post-Confirmation Operations.........................................    6
            5.   Dispute With Equity Committee and Certain Common Shareholders
             Regarding Valuations.....................................................    6
            6.   Miscellaneous........................................................    9
       B.  Who May Vote...............................................................   10
       C.  Voting Instructions........................................................   10
       D.  Summary of Procedures Respecting Acceptance or Rejection of the Plan.......   12
       E.  Confirmation Hearing.......................................................   12
       F.  Objections to Confirmation.................................................   12
II.    BACKGROUND AND EVENTS PRECIPITATING THE CHAPTER 11 FILINGS.....................   12
       A.  General....................................................................   12
            1.   Overview of Operations...............................................   13
                 a.   Cement Operations...............................................   13
                 b.   Aggregates Operations...........................................   13
                 c.   Ready-Mixed Concrete Operations.................................   13
                 d.   Domestic Joint Ventures.........................................   13
                 e.   International Operations........................................   14
       B.  Major Sources of Pre-Petition Financing....................................   14
            1.   Revolving Credit Agreement...........................................   14
            2.   Accounts Receivable Agreement........................................   14
            3.   Long-Term Debt Obligations...........................................   14
            4.   Industrial Development Bonds.........................................   15
            5.   Production Payment Facility..........................................   18
            6.   Bareboat Charter Transaction.........................................   20
       C.  Pre-Petition Capital Structure.............................................   21
       D.  Pre-Petition Cash Management System........................................   21
       E.  Events Precipitating Chapter 11 Filings....................................   21
III.   THE CHAPTER 11 CASES...........................................................   22
       A.  The Filing of the Petitions................................................   22
       B.  Description of Debtors.....................................................   23
            1.   Lone Star Industries, Inc. ..........................................   23
            2.   New York Trap Rock Corporation.......................................   23
            3.   San-Vel Concrete Corporation.........................................   23
            4.   NYTR Transportation Corporation......................................   23
            5.   Lone Star Cement Inc. ...............................................   23
            6.   Construction Materials Company.......................................   24
            7.   I.C. Materials, Inc. ................................................   24
            8.   Lone Star Prestress Concrete, Inc. ..................................   24
            9.   Lone Star Properties, Inc. ..........................................   24
            10. Southern Aggregates, Inc. ............................................   24
            11. Lone Star Transportation Corporation..................................   25
</TABLE>
 
                                        i
<PAGE>   3
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
            12. Lone Star Building Centers, Inc. .....................................   25
            13. Lone Star Building Centers (Eastern) Inc. ............................   25
       C.  Funding of Post-Petition Operations........................................   25
       D.  Official Committees........................................................   26
            1.   Appointment of Official Committees...................................   26
       E.  Debtors' Retention of Professionals........................................   27
       F.  Operations as Debtors-in-Possession........................................   28
            1.   Management of the Debtors and Related Issues.........................   28
                 a.   Cahill Investigation............................................   28
                 b.   Rejection and/or Termination of Employee-Related Contracts and
                  Arrangements........................................................   29
                 c.   Post-Petition Management........................................   29
                      (1) Mr. David W. Wallace........................................   29
                      (2) Mr. William M. Troutman.....................................   30
                      (3) Mr. John J. Martin..........................................   31
                 d.   Separation Pay and Retention Award Plan.........................   31
                 e.   Resignations and Additions of Officers and Directors............   32
                 f.   Pre-Confirmation Asset Dispositions.............................   32
                      (1) Sale of Stock of Compania Uruguaya de Cemento Portland......   33
                      (2) Sale of Certain Real and Personal Property of San-Vel
                      Concrete Corporation............................................   33
                      (3) Sale of Stock of Compania Argentina de Cemento Portland.....   33
                      (4) Sale of Promissory Note Issued by Sunbelt Corporation.......   33
                      (5) Sale of Certain Barges and Dredges..........................   34
                      (6) Sale of Assets Located in Bonner Springs, Kansas............   34
                      (7) Sale of Stock of Companhia Nacional de Cimento Portland.....   34
                      (8) Miscellaneous Asset Sales Pursuant to Administrative Order
                      of the Bankruptcy Court.........................................   34
                 g.   Reduction of Expenses and Rejection or Modification of Contracts
                      and Leases......................................................   35
       G.  Claims Against the Debtors' Estates and Other Liabilities..................   37
            1.   General..............................................................   37
            2.   Claim Objections.....................................................   37
            3.   Summary of Major Claims..............................................   38
                 a.   Litigation and Settlement of Cross-Tie and Related Claims.......   38
                 b.   Claims By and Against Liberty Mutual Insurance
                  Company/Settlement With Liberty Mutual..............................   39
                 c.   Retiree Benefit Obligations.....................................   42
                 d.   Environmental Claims and Obligations............................   47
                 e.   Claims Respecting Industrial Revenue Bonds -- Settlements With
                  Mitsubishi and CCF..................................................   52
                 f.   Claims Asserted by Credit Suisse................................   54
                 g.   Claims By and Against James E. Stewart..........................   54
                 h.   Claims By and Against Sheldon Kaplan............................   56
                 i.   Employee And/Or Director Indemnification and Contribution
                  Claims..............................................................   56
                 j.   Potential Rancho Cordova Claim..................................   58
                 k.   Pension Benefit Guaranty Corporation Claims.....................   60
                 l.   Other Unsecured Claims Disputed By The Debtors..................   61
</TABLE>
 
                                       ii
<PAGE>   4
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
            4.   Other Legal Proceedings..............................................   62
                 a.   Litigation Respecting Lone Star's Board of Directors............   62
                 b.   Class Action Shareholder Litigations............................   63
                 c.   Litigation with the Internal Revenue Service....................   63
                 d.   Litigation Respecting Sale of CACP Stock........................   64
                 e.   Litigation with Rankin County Economic Development District.....   65
       H.  Avoidance Actions and Related Matters......................................   66
IV.    THE PLAN OF REORGANIZATION.....................................................   68
       A.  Introduction...............................................................   68
       B.  Substantive Consolidation..................................................   68
       C.  Development of the Plan....................................................   70
            1.   Core vs. Non-Core Assets.............................................   70
                 a.   Description of Core Assets......................................   71
                      Greencastle Complex.............................................   71
                      Maryneal Complex................................................   72
                      Cape Girardeau Complex..........................................   72
                      Oglesby Complex.................................................   72
                      Pryor Complex...................................................   72
                      New York Trap Rock Corporation..................................   72
                      Construction Aggregates, Limited................................   73
                      Construction Materials Co. .....................................   73
                      I.C. Materials, Inc. ...........................................   73
                      Memphis Ready-Mixed Division....................................   73
                      Kosmos Cement Company...........................................   73
                      Pennsuco Cement Plant...........................................   73
                 b.   Description of Non-Core Assets to be Transferred to NewCo.......   74
                      RMC LONESTAR and Santa Cruz Cement Plant........................   74
                      Lone Star-Falcon................................................   75
                      Hawaiian Cement.................................................   76
                      Nazareth Cement Plant...........................................   76
                      The Riedel Note.................................................   76
                      Surplus Real Property...........................................   76
                 c.   Capital Expenditures Related to Core Assets.....................   77
                 d.   Labor Relations Issues Related to Core and Non-Core Assets......   77
            2.   Potentially Solvent Debtors..........................................   78
       D.  General Requirements Respecting Confirmation of the Plan...................   78
            1.   Classification of Claims and Stock Interests Under the Plan..........   79
            2.   Valuation............................................................   80
            3.   Treatment of Claims and Stock Interests Under the Plan...............   82
                 Administrative Expenses..............................................   82
                 Priority and Secured Tax Claims......................................   83
                 Unimpaired Classes Under the Plan....................................   83
                      Class 1 -- Allowed Priority Claims..............................   83
                      Class 3 -- Allowed Convenience Claims...........................   84
                      Class 8 -- Allowed Equity Interests in Subsidiaries.............   84
</TABLE>
 
                                       iii
<PAGE>   5
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
                 Classes Impaired Under the Plan......................................   84
                      Class 2 -- Allowed Secured Claims...............................   84
                      Class 4 -- Allowed Unsecured Claims.............................   86
                      Class 5 -- Allowed Preferred Stock Interests....................   88
                      Class 6 -- Allowed Common Stock Interests.......................   90
                      Class 7 -- Rescission and Damage Claims Respecting Common
                                 Stock................................................   90
                      Class 9 -- Intercompany Claims..................................   91
       E.  Means of Execution Respecting the Plan.....................................   91
            1.   Funding of the Plan..................................................   91
            2.   Post-Confirmation Asset Dispositions.................................   91
                 a.   Transfer of Non-Core Assets to NewCo............................   91
                 b.   Security for NewCo Notes........................................   92
                 c.   Procedures and Related Matters Respecting Dispositions of
                  Non-Core Assets.....................................................   93
            3.   Treatment of Executory Contracts and Unexpired Leases................   94
            4.   Releases.............................................................   94
            5.   Description of Documents to be Entered Into in Connection with the
             Plan.....................................................................   95
                 a.   Reorganized Lone Star Charter and By-Laws.......................   95
                 b.   NewCo Charter and By-Laws.......................................   96
                 c.   Senior Note Indenture...........................................   96
                 d.   Asset Proceeds Note Indenture...................................   97
                 e.   Collateral Agency Agreement.....................................   98
                 f.   Reorganized Lone Star Guarantee.................................   98
                 g.   Pledge Agreement................................................   98
                 h.   Warrant Agreement...............................................   98
                 i.   Management Stock Option Plan....................................   99
                 j.   Directors' Stock Option Plan....................................  100
V.     CONFIRMATION OF THE PLAN OF REORGANIZATION.....................................  101
       A.  Acceptance.................................................................  101
       B.  Confirmation and Consummation..............................................  102
            1.   Confirmation Hearing.................................................  102
            2.   Statutory Requirements for Confirmation..............................  102
                 a.   Best Interests of Creditors Test................................  103
                 b.   Financial Feasibility...........................................  103
                 c.   Acceptance by Impaired Classes..................................  104
                 d.   Confirmation Without Acceptance by All Impaired Classes.........  104
            3.   Resolution of Claims.................................................  105
       C.  Equity Committee's Objection to the Plan...................................  105
       D.  Risk Factors...............................................................  107
            1.   Cement Industry Conditions...........................................  107
            2.   Environmental Regulations............................................  108
            3.   Liquidity and Leverage...............................................  108
            4.   Litigation Risks.....................................................  109
            5.   Projections..........................................................  109
            6.   Certain Tax Matters..................................................  109
            7.   Dividend Policies....................................................  109
            8.   Ability to Service Debt..............................................  109
</TABLE>
 
                                       iv
<PAGE>   6
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
            9.   Lack of Established Market for Senior Notes, Asset Proceeds Notes,
             New Lone Star Common Stock and Reorganized Lone Star Warrants............  110
            10. Risks Respecting Disputed Claims......................................  110
VI.    ALTERNATIVES TO THE PLAN.......................................................  110
       A.  Chapter 7 Liquidation......................................................  110
       B.  The Filing of Competing Plans of Reorganization............................  111
VII.   CERTAIN FEDERAL INCOME TAX CONSEQUENCES OF THE PLAN............................  111
       A.  Introduction...............................................................  111
       B.  Federal Income Tax Consequences to Holders.................................  112
            1.   Overview.............................................................  112
            2.   Gain or Loss to Holders of Allowed Unsecured Claims..................  112
                 a.   Realization of Gain or Loss on the Effective Date...............  112
                 b.   Recognition of Gain or Loss on the Effective Date...............  113
                      (1) Allowed Unsecured Claims Not Constituting Securities of Lone
                      Star............................................................  113
                      (2) Allowed Unsecured Claims Constituting Securities of Lone
                      Star............................................................  113
                 c.   Character of Gain or Loss.......................................  114
                 d.   Basis and Holding Period of Property Received...................  114
                 e.   Market Discount on Resale.......................................  114
                 f.   Effect of Original Issue Discount...............................  115
            3.   Gain or Loss to Holders of Allowed Preferred Stock and Allowed Common
             Stock Interests..........................................................  115
       C.  Federal Income Tax Consequences to Debtors.................................  115
            1.   Overview.............................................................  115
            2.   Debt Restructuring...................................................  116
                 a.   Discharge of Indebtedness.......................................  116
                 b.   Future Utilization of NOL Carryovers............................  117
                 c.   Alternative Minimum Tax.........................................  118
VIII.  APPLICABILITY OF FEDERAL AND OTHER SECURITIES LAWS.............................  118
       A.  Issuance of Securities Under the Plan......................................  118
       B.  Subsequent Transfers of Securities Issued Under the Plan...................  118
IX.   POST-CONFIRMATION MATTERS.......................................................  119
       A.  Officers and Directors.....................................................  119
       B.  Retention of Jurisdiction..................................................  119
       C.  Administration of Disputed Claims Reserve - Escrow Agent...................  120
       D.  Conditions Precedent to Effectiveness of the Plan..........................  121
       E.  Dissolution of Committees..................................................  122
X.    CONCLUSION......................................................................  122
</TABLE>
 
                                        v
<PAGE>   7
 
                                    EXHIBITS
 
A.  Debtors' Modified Amended Consolidated Plan of Reorganization
 
B.  Members of Official Committee of Unsecured Creditors
 
C.  Members of Official Committee of Equity Security Holders
 
D.  Members of Official Committee of Retired Employees
 
E.  Liquidation Analysis
 
F.  Financial Information
 
G.  Form of Collateral Agency Agreement
 
H.  Form of Certificate of Incorporation of Reorganized Lone Star Industries,
    Inc., a Delaware Corporation
 
I.  Form of By-Laws of Reorganized Lone Star Industries, Inc., a Delaware
    Corporation
 
J.  Lone Star Industries, Inc. Annual Report for the fiscal year ended December
    31, 1992, on Form 10-K of the Securities and Exchange Commission
   
K.  Lone Star Industries, Inc. Quarterly Report for the fiscal quarter ended
    June 30, 1993, on Form 10-Q of the Securities and Exchange Commission
 
L.  Form of Senior Note Indenture
 
M.  Form of Asset Proceeds Note Indenture
 
N.  Form of Reorganized Lone Star Guarantee
 
O.  Cure Amounts Respecting Executory Contracts and Unexpired Leases to be
    Assumed Under the Plan
    
P.  Form of Certificate of Incorporation of NewCo, a Delaware Corporation
 
Q.  Form of By-Laws of NewCo, a Delaware Corporation
 
R.  Form of Pledge Agreement
 
S.  Form of Warrant Agreement
 
T.  Forms of Stock Option Plans
 
                                       vi
<PAGE>   8
 
     THE DEBTORS STRONGLY URGE ACCEPTANCE OF THE PLAN. SIMILARLY, THE OFFICIAL
COMMITTEE OF UNSECURED CREDITORS FULLY SUPPORTS THE PLAN AND ITS MEMBERS ALL
INTEND TO VOTE IN FAVOR OF ITS CONFIRMATION. THE OFFICIAL COMMITTEE OF EQUITY
SECURITY HOLDERS (WHICH REPRESENTS HOLDERS OF THE DEBTORS' STOCK), HOWEVER, HAS
INDICATED THAT IT WILL OPPOSE THE PLAN. THE DEBTORS NONETHELESS INTEND TO SEEK
CONFIRMATION OF THE PLAN DESPITE SUCH OPPOSITION. ALL PARTIES IN INTEREST SHOULD
CONSIDER CAREFULLY THE CONSEQUENCES OF VOTING TO REJECT THE PLAN, IN PARTICULAR
THE EFFECT OF REJECTION ON DISTRIBUTIONS TO STOCKHOLDERS AS SET FORTH ON PAGES
105 THROUGH 107 OF THIS DISCLOSURE STATEMENT.
 
                               I.   INTRODUCTION
 
A.     OVERVIEW
 
     1.     INTRODUCTION
 
     Lone Star Industries, Inc. ("Lone Star" or the "Company"), debtor and
debtor-in-possession, together with those subsidiaries and affiliates that are
debtors and debtors-in-possession in the above-captioned and jointly
administered Chapter 11 cases (collectively, the "Debtors"; see pages 22 to 25),
transmits this disclosure statement (the "Disclosure Statement"), pursuant to
Section 1125(b) of Title 11 of the United States Code, 11 U.S.C. sec.sec. 101 et
seq. (the "Bankruptcy Code") and Rule 3017 of the Federal Rules of Bankruptcy
Procedure (the "Bankruptcy Rules") in connection with the Debtors' Modified
Amended Consolidated Plan of Reorganization, dated November 4, 1993 (the
"Plan"), in order to provide adequate information to enable holders of Claims or
Stock Interests which are impaired under the Plan to make an informed judgment
in exercising their right to vote for acceptance or rejection of the Plan.
 
     A copy of the Plan, which has been filed with the Clerk of the Bankruptcy
Court, is annexed hereto and made a part hereof as Exhibit "A", and is discussed
in greater detail in this Disclosure Statement at pages 68 through 101 in the
section entitled "The Plan of Reorganization." All capitalized terms used herein
shall have the meanings ascribed to them in the Plan unless otherwise noted.
 
     2.     SUMMARY OF DISTRIBUTIONS UNDER THE PLAN(1)
 
     The Plan divides the Claims and Stock Interests into nine classes and sets
forth the treatment afforded each class. (A detailed description of the Plan is
set forth later in this Disclosure Statement at pages 68 through 101.) Set forth
below is a summary of the classifications and treatment of Claims and Stock
Interests under the Plan.(2)
 
- ---------------
 
1 This section contains only a brief and simplified summary of the
  classification and treatment of Claims and Stock Interests under the Plan. It
  does not describe every provision of the Plan and omits many details.
  Accordingly, reference should be made to the entire Disclosure Statement
  (including exhibits) and the Plan for a complete description of the
  classification and treatment of Claims and Stock Interests.
 
2 When reviewing this summary please note that the percentage of New Lone Star
  Common Stock issued to creditors and shareholders pursuant to the Plan is
  subject to dilution in accordance with the Stock Option Plans (the forms of
  which are annexed hereto as Exhibit "T"), shares of New Lone Star Common Stock
  issued as a result of the exercise of the Reorganized Lone Star Warrants and
  such other shares as may be authorized and issued pursuant to the Reorganized
  Lone Star Charter.
 
                                        1
<PAGE>   9
 
IMPAIRED CLASSES:
 
<TABLE>
<CAPTION>
                   TYPE OF CLAIM OR
CLASS               STOCK INTEREST                         TREATMENT UNDER THE PLAN(3)
- -----   ---------------------------------------  ---------------------------------------------
<C>     <S>                                      <C>
   2    Allowed Secured Claims                   Each holder of an Allowed Secured Claim will
                                                 either be paid in full on the Effective Date,
                                                 rendered unimpaired, or receive deferred Cash
                                                 payments in a manner consistent with Section
                                                 1129(b) of the Bankruptcy Code.
- ----------------------------------------------------------------------------------------------
  4A    Allowed 4A Unsecured Claims (Allowed     (i) Treatment If Fully Consensual
        Unsecured Claims against any of the      Confirmation:
        following Debtors that are not
        Intercompany Claims, Allowed             On the Effective Date, each holder shall
        Convenience Claims or Allowed Claims in  receive its Pro Rata share of: (a) 4.7% of
        Class 7: Construction Materials          Available Cash (currently estimated to be
        Company, I.C. Materials, Inc., Lone      $8,629,000 and subject to increase by 1.8% of
        Star Cement Inc., New York Trap Rock     the net proceeds from disposition of Non-Core
        Corporation, or Southern Aggregates,     Assets consummated prior to Confirmation);
        Inc.)                                    (b) $6,471,000 of Senior Notes; (c) 1.8% of
                                                 Asset Proceeds Notes; plus (d) 321,600 shares
                                                 of New Lone Star Common Stock (representing
                                                 2.68% of the outstanding shares of New Lone
                                                 Star Common Stock).

                                                 Estimated Recovery: 92.2% to 101.8%

                                                 (ii) Treatment If Class 5 (Preferred Stock)
                                                      Accepts Plan and Class 6 (Common Stock)
                                                      Rejects Plan:

                                                 Each holder shall receive the treatment set
                                                 forth in clause (i) plus its Pro Rata share
                                                 of an additional .15% of New Lone Star Common
                                                 Stock (or 18,000 additional shares).

                                                 Estimated Recovery: 93.2% to 103.1%

                                                 (iii) Treatment If Class 5 (Preferred Stock)
                                                       Rejects Plan:

                                                 Each holder shall receive the treatment set
                                                 forth in clause (i) plus its Pro Rata share
                                                 of an additional .48% of New Lone Star Common
                                                 Stock (or 57,600 additional shares).

                                                 Estimated Recovery: 95.3% to 106.1%
</TABLE>
 
- ---------------
3 As discussed more fully in Section IV(D)(2) of this Disclosure Statement, the
  recoveries under the Plan were derived based on the value of the consideration
  to be distributed to holders of Allowed Claims and Stock Interests.
  Specifically, in addition to the Cash to be distributed under the Plan, for
  the purpose of estimating the recovery percentages of creditors in Classes 4A
  and 4B, the Debtors have ascribed a value to the Senior Notes equal to the
  face value of such securities. The low and high range of values ascribed to
  the Asset Proceeds Notes represents, at the low end, estimates of the cash
  flows and net proceeds resulting from the dispositions of the Non-Core Assets
  contributed to NewCo and, at the high end, the face value of such notes. The
  value of the New Lone Star Common Stock to be issued to Classes 4, 5 and 6 was
  determined by the Debtors upon advice from The Blackstone Group L.P. and was
  based upon an assumed reorganization value of $149,247,000 to $204,247,000.
  Such valuations are not estimates of the prices at which the securities to be
  distributed under the Plan may trade in the market and the Debtors have not
  attempted to make any such estimate in connection with the development of the
  Plan.
 
                                        2
<PAGE>   10
 
<TABLE>
<CAPTION>
                   TYPE OF CLAIM OR
CLASS               STOCK INTEREST                         TREATMENT UNDER THE PLAN
- -----   ---------------------------------------  ---------------------------------------------
<C>     <S>                                      <C>
  4B    Allowed 4B Unsecured Claims (all other   (i) Treatment If Fully Consensual
        Allowed Unsecured Claims which are not       Confirmation:
        Allowed Convenience Claims,
        Intercompany Claims, Allowed Claims in   On the Effective Date, each holder shall
        Class 7 or Allowed Claims in Class 4A)   receive its Pro Rata share of: (a) Available
                                                 Cash remaining after distributions of Cash on
                                                 the Effective Date to holders of Allowed
                                                 Claims in Class 4A have been completed; (b)
                                                 $68,529,000 of Senior Notes; (c) 98.2% of
                                                 Asset Proceeds Notes; plus (d) 9,878,400
                                                 shares of New Lone Star Common Stock
                                                 (representing 82.32% of the outstanding
                                                 shares of New Lone Star Common Stock).
                                                 
                                                 Estimated Recovery: 84.9% to 100.0%

                                                 (ii) Treatment If Class 5 (Preferred Stock)
                                                      Accepts Plan and Class 6 (Common Stock)
                                                      Rejects Plan:

                                                 Each holder shall receive the treatment set
                                                 forth in clause (i) plus its Pro Rata share
                                                 of (a) an additional 4.6% of New Lone Star
                                                 Common Stock (or 552,000 additional shares),
                                                 and (b) 2,083,333 Reorganized Lone Star
                                                 Warrants.

                                                 Estimated Recovery: 86.7% to 102.3%

                                                 (iii) Treatment If Class 5 (Preferred Stock)
                                                       Rejects Plan:

                                                 Each holder shall receive the treatment set
                                                 forth in clause (i) plus its Pro Rata share
                                                 of an additional 14.52% of the New Lone Star
                                                 Common Stock which would have otherwise been
                                                 distributed to Classes 5 and 6 under the Plan
                                                 (1,742,000 additional shares).

                                                 Estimated Recovery: 88.8% to 105.5%
- ----------------------------------------------------------------------------------------------
   5    Allowed Preferred Stock Interests        (i) Treatment If Fully Consensual
                                                     Confirmation:

                                                 All Preferred Stock shall be cancelled,
                                                 annulled and extinguished as of the Effective
                                                 Date and each holder of an Allowed Preferred
                                                 Stock Interest shall receive its Pro Rata
                                                 share of (a) 1,260,000 shares of New Lone
                                                 Star Common Stock (representing 10.5% of the
                                                 outstanding shares of New Lone Star Common
                                                 Stock), plus (b) 1,250,000 Reorganized Lone
                                                 Star Warrants (which collectively carries an
                                                 estimated aggregate range of value of
                                                 $17,546,000 to $23,321,000).

                                                 Estimated Recovery:(4) 45.0% to 59.8%
</TABLE>
 
- ---------------
4 The estimated recoveries to holders of Allowed Preferred Stock Interests are
  calculated as a percentage of such holders' investment as of the Filing Date
  (which includes the face amount of such stock and accrued and unpaid dividends
  as of such date). For a discussion of the calculation of such recoveries see
  pages 88 to 89.
 
                                        3
<PAGE>   11
 
<TABLE>
<CAPTION>
                      TYPE OF CLAIM OR
 CLASS                 STOCK INTEREST                        TREATMENT UNDER THE PLAN
- --------   ---------------------------------------  ------------------------------------------
<C>        <S>                                      <C>
    5      Allowed Preferred Stock Interests        (ii) Treatment If Class 5 (Preferred
           (cont'd)                                      Stock) Accepts Plan and Class 6 
                                                         (Common Stock) Rejects Plan:            

                                                    All Preferred Stock shall be cancelled,
                                                    annulled and extinguished as of the
                                                    Effective Date and each holder of an
                                                    Allowed Preferred Stock Interest shall
                                                    receive its Pro Rata share of (a)
                                                    1,230,000 shares of New Lone Star Common
                                                    Stock (which represents 10.25% of the
                                                    outstanding shares of New Lone Star Common
                                                    Stock); plus (b) 1,250,000 Reorganized
                                                    Lone Star Warrants (which collectively
                                                    carries an estimated aggregate range of
                                                    value of $17,173,000 to $22,810,000).

                                                    Estimated Recovery: 44.1% to 58.5%

                                                    (iii) Treatment If Class 5 Rejects Plan:

                                                    All Preferred Stock shall be cancelled,
                                                    annulled and extinguished as of the
                                                    Effective Date and no holder of an Allowed
                                                    Preferred Stock Interest shall be entitled
                                                    to receive or retain any property on
                                                    account of such Preferred Stock Interest.
- ----------------------------------------------------------------------------------------------
    6      Allowed Common Stock Interests           (i) Treatment If Fully Consensual
                                                        Confirmation:

                                                    All Common Stock shall be cancelled,
                                                    annulled and extinguished as of the
                                                    Effective Date and each holder of an
                                                    Allowed Common Stock Interest shall
                                                    receive its Pro Rata share of (a) 540,000
                                                    shares of New Lone Star Common Stock
                                                    (which represents 4.5% of the outstanding
                                                    shares of New Lone Star Common Stock); and
                                                    (b) 2,083,333 Reorganized Lone Star
                                                    Warrants (which collectively carries an
                                                    estimated aggregate range of value of
                                                    $9,841,000 to $12,316,000).

                                                    (ii) Treatment If Class 5 (Preferred
                                                         Stock) or Class 6 Rejects Plan:

                                                    All Common Stock shall be cancelled,
                                                    annulled and extinguished as of the
                                                    Effective Date and no holder of an Allowed
                                                    Common Stock Interest shall be entitled to
                                                    receive or retain any property or interest
                                                    in property on account of such Common
                                                    Stock Interest.
- ----------------------------------------------------------------------------------------------
    7      Rescission and Damage Claims Respecting  Each holder shall retain all proceeds
           Common Stock                             derived from any litigation instituted by
                                                    any such holder or on his or their behalf
                                                    against any entity other than the Debtors
                                                    but shall receive no distribution under
                                                    the Plan from the Debtors or Reorganized
                                                    Debtors.
- ----------------------------------------------------------------------------------------------
    9      Intercompany Claims                      On the Effective Date, all Intercompany
                                                    Claims shall be expunged, released and
                                                    discharged, and holders of such Claims
                                                    shall receive no distributions of any kind
                                                    under the Plan.
</TABLE>
 
                                        4
<PAGE>   12
 
UNIMPAIRED CLASSES AND CLAIMS:
 
<TABLE>
<CAPTION>
                            TYPE OF CLAIM OR
        CLASS                STOCK INTEREST                     TREATMENT UNDER THE PLAN
    --------------   -------------------------------  ---------------------------------------------
<S>                  <C>                              <C>                                             
          1          Allowed Priority Claims          Shall be paid in full, in Cash, as soon as   
                                                      practicable after (a) the later of the
                                                      Effective Date or the date of a Final Order
                                                      allowing any such Claim in Class 1, or (b)
                                                      upon such other terms as may be agreed to
                                                      between the Debtors and any holder of a Class
                                                      1 Claim.
- -------------------------------------------------------------------------------------------------------
          3          Allowed Convenience Claims       On the Effective Date, each holder shall
                                                      receive on account of such claim a Cash
                                                      payment equal to 100% of its Allowed
                                                      Convenience Claim.
- -------------------------------------------------------------------------------------------------------
          8          Equity Interests in              On the Effective Date, record holders of
                     Subsidiaries                     Allowed Equity Interests in Subsidiaries
                                                      shall continue to hold such equity interests,
                                                      which equity interests shall continue to be
                                                      evidenced by the capital stock held by such
                                                      record holders in the Subsidiary or
                                                      Subsidiaries as of the Effective Date.
- -------------------------------------------------------------------------------------------------------
    NOT APPLICABLE   Allowed Administrative Claims    To be paid in full, in Cash, in such amounts
                                                      as are incurred in the ordinary course of
                                                      business by the Debtors, or in such amounts
                                                      as such Administrative Claims are allowed by
                                                      the Bankruptcy Court (a) upon the later of
                                                      the Effective Date or the date upon which the
                                                      Bankruptcy Court enters a Final Order
                                                      allowing such Administrative Claim or (b)
                                                      upon such other terms as may exist due to the
                                                      ordinary course of the business of the
                                                      Debtors or (c) as may be agreed upon between
                                                      the holders of such Administrative Claims and
                                                      the Debtors.
- -------------------------------------------------------------------------------------------------------
    NOT APPLICABLE   Allowed Tax Claims               To be paid in full, in Cash, on the Effective
                                                      Date or upon such other terms as may be
                                                      agreed to between the Debtors and any holder
                                                      of an Allowed Tax Claim; provided, however,
                                                      that the Debtors may, at their option, (i)
                                                      make Cash payments deferred to the extent
                                                      permitted by Section 1129(a)(9) of the
                                                      Bankruptcy Code, or (ii) in the event an
                                                      Allowed Tax Claim may also be classified as
                                                      an Allowed Secured Claim, the Debtors may, at
                                                      their option, elect to treat Allowed Tax
                                                      Claims as Secured Claims.
- -------------------------------------------------------------------------------------------------------
</TABLE>
 
     As of July 9, 1993, the Debtors estimate that, upon completion of the
claims objection process, Allowed Unsecured Claims against their estates will be
approximately $571,500,000 (including Allowed Convenience Claims) of which
approximately $23,165,000 will be Allowed 4A Unsecured Claims and approximately
$548,335,000 will be Allowed 4B Unsecured Claims (see page 86 of this Disclosure
Statement).
 
3.   FUNDING OF PLAN -- ASSET DISPOSITIONS
 
     Prior to the Filing Date, Lone Star's management determined that Lone
Star's strategic goals and objectives should be focused primarily on the
reinforcement and rehabilitation of its core domestic operations
 
                                        5
<PAGE>   13
 
and away from off-shore operations. Since the Filing Date, the Debtors have
engaged in a program of disposing of assets which they believed were not
essential to their core domestic cement, construction aggregates and ready-mixed
concrete businesses. Through the date hereof, the Debtors received proceeds from
asset dispositions aggregating in excess of $155,000,000 (see pages 32 through
35 of this Disclosure Statement). It is anticipated that on the Confirmation
Date, the Debtors will have approximately $238,172,000 in Cash from the proceeds
of asset dispositions and from operations of which, after deductions for working
capital and other necessary items, approximately $193,640,000 will be available
for distribution to all creditors (see page 86 of this Disclosure Statement).
 
     Following Confirmation, in order to facilitate the disposition of the
Debtors' remaining Non-Core Assets, the Debtors will transfer their interests in
such assets (including associated liabilities and subject to valid and perfected
existing liens and security interests) to NewCo, a wholly-owned subsidiary of
Reorganized Lone Star which will be responsible for the disposition thereof. The
remaining Core Assets will form the basis of Reorganized Lone Star. As noted
above, holders of Allowed Unsecured Claims will receive, among other things, the
Asset Proceeds Notes, the obligations of which are to be satisfied primarily
from the proceeds of the post-Confirmation dispositions of the Non-Core Assets
by NewCo. The Asset Proceeds Notes will be secured by first priority liens and
security interests, as the case may be, subject to valid and perfected existing
liens and security interests, on all the assets of NewCo. A portion of the
obligations under the Asset Proceeds Notes (up to $20,000,000 plus interest)
will be guaranteed by Reorganized Lone Star pursuant to the Reorganized Lone
Star Guarantee (see page 98 of this Disclosure Statement). It is presently
anticipated that post-Confirmation dispositions of the Non-Core Assets will take
approximately 24 months from the Effective Date to complete and will generate
gross proceeds of between approximately $118.0 million and $180.0 million (see
pages 74 through 77). In addition, as briefly described above and as detailed
later in this Disclosure Statement (at pages 86 through 88), under the Plan,
holders of Allowed Unsecured Claims will also receive Cash, Senior Notes, New
Lone Star Common Stock and, where appropriate, Reorganized Lone Star Warrants.
 
4.   POST-CONFIRMATION OPERATIONS
 
     As a result of the Debtors' asset dispositions, following Confirmation and
consummation of the Plan, the operations of Reorganized Lone Star and its
affiliates will consist of their core domestic cement, construction aggregates
and ready-mixed concrete businesses (see pages 71 through 73 for a discussion of
the Debtors' core business operations). In general, it is estimated that the
equity of Reorganized Lone Star will be valued at between $149,247,000 and
$204,247,000 (see pages 80 through 82).(5) In addition, besides certain
obligations necessary for the Debtors' continued business operations,
Reorganized Lone Star will assume the following obligations as part of the Plan:
the Senior Notes, the Reorganized Lone Star Guarantee (page 98), retiree benefit
obligations (pages 42 through 47), certain environmental obligations (pages 47
through 52), pension obligations (pages 60 through 61), employee indemnification
obligations (pages 56 through 58), production payment obligations as modified
pursuant to an order of the Bankruptcy Court (pages 18 through 20), and certain
executory contracts and unexpired leases (page 94).
 
5.   DISPUTE WITH EQUITY COMMITTEE AND CERTAIN COMMON SHAREHOLDERS REGARDING
VALUATIONS
 
     For Plan negotiation purposes, the going-concern value ascribed to
Reorganized Lone Star and to the operating Non-Core Assets, and, therefore, the
values of the securities to be issued pursuant to the Plan, were determined by
the Debtors upon advice from The Blackstone Group L.P. ("Blackstone"), the
Debtors' financial advisor. (See Section IV(D)(2) of this Disclosure Statement
for a further discussion of the Debtors' and other valuations.) The Debtors'
valuation utilized standard financial analyses and methodologies including
 
- ---------------
 
5 The valuation ascribed to New Lone Star Common Stock represents a hypothetical
  reorganization value which was developed solely for the purposes of
  formulation and negotiation of a plan of reorganization and analysis of
  relative recoveries to creditors. Such valuation reflects computations of the
  estimated intrinsic value of the Debtors' businesses derived through
  application of various valuation techniques and do not purport to reflect or
  constitute an estimate or opinion of the actual market values of the New Lone
  Star Common Stock issued pursuant to the Plan.
 
                                        6
<PAGE>   14
 
discounted cash flow analyses and multiples of earnings before interest, taxes,
depreciation and amortization ("EBITDA") of comparable publicly traded
companies.
 
     For purposes of calculating recoveries under the Plan, Blackstone
determined Reorganized Lone Star would have a total enterprise value, after
distribution of Cash to creditors, of between $270 million and $305 million.
Blackstone utilized discount rates of 12% to 16% and multiples of EBITDA of 12.0
to 13.0 (for the twelve months ended June 1993) and 9.0 to 10.0 (for fiscal
1993) to develop its valuation. Further, using a discounted cash flow analysis,
taking into consideration the operating results, the present value of projected
sale proceeds and dates of sale of the Debtors' Non-Core Assets, Blackstone
valued the Non-Core Assets at between $99.8 million and $153.1 million.
 
     The Debtors' valuation has been shared with representatives of all major
constituencies. The Debtors have negotiated or sought to negotiate with each of
the major parties-in-interest and their financial advisors -- the Official
Committee of Unsecured Creditors, the Official Committee of Retired Employees,
the labor unions representing union retirees, the Pension Benefit Guaranty
Corporation and the Official Committee of Equity Security Holders (the "Equity
Committee") -- concerning the Plan based on the Debtors' estimated range of
values.
 
     However, the Equity Committee has disputed the Debtors' valuation of their
assets and has advocated higher values for the Debtors' assets.(6) Based on the
Debtors' financial projections, which the Equity Committee believes are overly
conservative, and utilizing a discounted cash flow analysis and analysis of
multiples of EBITDA, the Equity Committee's financial advisor, The Argosy Group
L.P. ("Argosy"), determined Reorganized Lone Star would have an enterprise value
of $328 million to $379 million and the Non-Core Assets would have a value of
between $196.5 million and $263.4 million. Argosy employed discount rates of
9.0% to 10.0% and EBITDA multiples of 9.5 to 11.5 (latest twelve months and
fiscal 1993) and 7.5 to 9.5 (fiscal 1994) in its valuation analysis.
 
     Based on these higher valuation results, the Equity Committee believes the
value of the new common stock of Lone Star under the Debtors' Plan (before the
exercise of any Warrants) would be in the range of $265.7 million to $383.8
million. In contrast, the Debtors believe Reorganized Lone Star would have an
equity value of between $149.2 million and $204.2 million.
 
     The Debtors believe that their discount rates and public market multiples
more accurately reflect Reorganized Lone Star's risks and earnings prospects
under current market conditions and therefore believe their valuation is sound.
The Equity Committee believes the Debtors have significantly undervalued their
assets, and that the Plan therefore provides for recoveries to unsecured
creditors well in excess of the estimated amount of their pre-petition claims.
(The Debtors believe, however, if post-petition interest is included in such
claims, then unsecured creditors would not receive value under the Plan greater
than the amount of such claims, inclusive of post-petition interest.)
Accordingly, the Equity Committee believes the Plan may be held not fair and
equitable to equity security holders and therefore unconfirmable.(7)
 
- ---------------
 
6 In addition, certain class action securities litigation claimants have
  requested that the Debtors disclose that they (i) are unwilling to accept the
  Debtors' valuation, (ii) assert that they have not had the opportunity to
  review the documents upon which the Debtors' valuation of their assets is
  based, and (iii) may challenge the confirmation of the Plan based upon the
  failure of the Debtors to properly value their assets. (See pages 63 for a
  discussion of such claims.)
 
7 As set forth in Section IV(D)(2) of this Disclosure Statement, the Equity
  Committee also believes the Debtors have underestimated the recoveries that
  would be achieved in a liquidation of the Debtors' estates. The Equity
  Committee believes the Plan may be deemed not in the best interests of equity
  security holders because equity security holders under certain assumptions
  could receive more value from an orderly liquidation of all the Debtors'
  assets than such holders would receive under the Plan. The Debtors dispute the
  Equity Committee's position and believe all constituents would receive a
  greater recovery under the Plan than in liquidation.
 
                                        7
<PAGE>   15
 
     The difference between the Debtors' valuations and the Equity Committee's
valuations and their impact on projected recoveries to Class 4B creditors and
equity security holders under the Plan are summarized in the following table.
 
                            VALUATION DISCREPANCIES
                            AND RANGES OF RECOVERIES
 
<TABLE>
<CAPTION>
                                                                                BASED ON
                                                                                 EQUITY
                                                           BASED ON            COMMITTEE'S
                                                      DEBTORS' VALUATION        VALUATION
                                                      ------------------     ---------------
<S>                                                   <C>                    <C>
Reorganized Lone Star Enterprise Value*                      $270 - 305           $328 - 379
Non-Core Asset Valuation*                                    $100 - 153           $196 - 263
Equity Value of Reorganized Lone Star*+                      $149 - 204           $266 - 384
Class 4B Recovery Under Consensual Plan Excluding
  Accrual of Post-Petition Interest**                    84.9% - 100.0%      109.3% - 127.1%
Class 4B Recovery Under Consensual Plan, Including
  Accrual of Post-Petition Interest**                    69.1% -  81.4%       88.9% - 103.4%
Class 4B Recovery Under Plan if Preferred and Common
  Stockholders Reject the Plan, Excluding Accrual of
  Post-Petition Interest**                               88.8% - 105.5%      116.3% - 137.3%
Class 4B Recovery if Preferred and Common
  Stockholders Reject the Plan, Including Accrual of
  Post-Petition Interest**                               72.3% -  85.8%       94.7% - 111.7%
Class 5 (Preferred Stock) Recovery Under Consensual
  Plan (as percentage of par value of security)@         45.0% -  59.8%       97.8% - 150.7%
Class 5 (Preferred Stock) Recovery Under Consensual
  Plan (Including Accrual of Post-Petition Dividends
  and Interest)@                                         31.4% -  41.8%       68.3% - 105.2%
Class 6 (Common Stock) Aggregate Recovery Under
  Consensual Plan@*                                            $10 - 12             $29 - 48
</TABLE>
 
- ---------------
*  In millions of dollars, rounded to nearest million.
+  Calculated as Reorganized Lone Star enterprise value, plus surplus proceeds
   from sale of Non-Core Assets, less long-term debt obligations.
** As percentage of estimated allowed amount of claims.
@ Includes value attributed to Warrants prior to exercise.
 
     If the dispute concerning valuations cannot be consensually resolved, a
determination by the Bankruptcy Court with respect thereto may have to be made
in connection with the Confirmation of the Plan. If holders of Allowed Common
Stock Interests do not accept the Plan (in which event there will be no
distribution on account of such interests), the Debtors believe that based on
their values (both on a going concern and liquidation basis) the Debtors
nonetheless would be able to confirm the Plan in accordance with Section 1129(b)
of the Bankruptcy Code because classes of claims and interests senior to common
stock interests will not receive distributions sufficient to fully satisfy such
claims and interests.
 
     The Equity Committee believes, based on its range of values, if holders of
Allowed Common Stock Interests do not accept the Plan, the Debtors will not be
able to confirm the Plan because the value of such stock interests exceeds what
such holders would receive under the Plan (i.e., no distribution). The Debtors
believe that, to succeed on this argument, the Equity Committee would have to
show, among other things, that (i) holders of Allowed Unsecured Claims would
receive full payment including post-petition interest on account of such Allowed
Claims through the date of payment, and (ii) holders of Allowed Preferred Stock
 
                                        8
<PAGE>   16
 
Interests would receive their liquidation preference (including accrued and
unpaid dividends, both pre - and post-petition). In any event, as noted above,
the Debtors believe the Equity Committee's values are incorrect and absent a
consensual resolution, the Bankruptcy Court may have to make a determination
with respect to valuation prior to Confirmation.
 
     The Debtors, in an effort to address the valuation discrepancy, have
included in the Plan a distribution of Warrants to holders of Allowed Common
Stock Interests (if they accept the Plan), which, if the high range of values
estimated by Argosy ultimately proves to be correct, would allow holders of
Allowed Common Stock Interests to realize a portion of such value. The Debtors
believe that the Plan is fair and equitable to holders of Allowed Common Stock
Interests and strongly urge such holders to vote to accept the Plan.
 
     6.   MISCELLANEOUS
 
     Accompanying this Disclosure Statement is also a copy of:
 
     1. An order (the "Disclosure Statement Approval Order") and related notice
approved by the Bankruptcy Court which, among other things, fixes the time for:
 
        a.    submitting acceptances or rejections of the Plan;
 
        b.    the hearing to consider confirmation of the Plan (the
             "Confirmation Hearing"); and
 
        c.    filing objections to confirmation of the Plan.
 
     2. A ballot for accepting or rejecting the Plan (the "Ballot").(8)
 
     THIS DISCLOSURE STATEMENT HAS BEEN APPROVED BY ORDER OF THE BANKRUPTCY
COURT AS CONTAINING INFORMATION OF A KIND AND IN SUFFICIENT DETAIL TO ENABLE
HOLDERS OF CLAIMS AND STOCK INTERESTS TO MAKE AN INFORMED JUDGMENT WITH RESPECT
TO VOTING TO ACCEPT OR REJECT THE PLAN. HOWEVER, THE BANKRUPTCY COURT'S APPROVAL
OF THIS DISCLOSURE STATEMENT DOES NOT CONSTITUTE A RECOMMENDATION OR
DETERMINATION BY THE BANKRUPTCY COURT WITH RESPECT TO THE MERITS OF THE PLAN.
 
     THIS DISCLOSURE STATEMENT CONTAINS A SUMMARY OF CERTAIN PROVISIONS OF THE
PLAN AND CERTAIN OTHER DOCUMENTS AND CERTAIN FINANCIAL INFORMATION. WHILE THE
DEBTORS BELIEVE THAT THESE SUMMARIES ARE FAIR AND ACCURATE AND PROVIDE ADEQUATE
INFORMATION WITH RESPECT TO THE DOCUMENTS SUMMARIZED, SUCH SUMMARIES ARE
QUALIFIED TO THE EXTENT THAT THEY DO NOT SET FORTH THE ENTIRE TEXT OF SUCH
DOCUMENTS. FURTHERMORE, CERTAIN OF THE FINANCIAL INFORMATION CONTAINED HEREIN
(WITH THE EXCEPTION OF PORTIONS OF THE ANNUAL REPORT ON FORM 10-K ANNEXED HERETO
AS EXHIBIT "J") HAS NOT BEEN THE SUBJECT OF AN AUDIT BY AN OUTSIDE ACCOUNTING
FIRM.(9) ALTHOUGH THE DEBTORS HAVE MADE EVERY EFFORT TO BE ACCURATE, EACH HOLDER
OF A CLAIM OR STOCK INTEREST SHOULD REVIEW THE PLAN AND THE OTHER APPENDICES
HERETO BEFORE CASTING A BALLOT.
 
     NO PARTY IS AUTHORIZED TO GIVE ANY INFORMATION WITH RESPECT TO THE PLAN
OTHER THAN THAT WHICH IS CONTAINED IN THIS DISCLOSURE STATEMENT. NO
REPRESENTATIONS CONCERNING THE DEBTORS, THEIR FUTURE BUSINESS OPERA-
 
- ---------------
 
8 Ballots are only being provided to holders of Claims or Stock Interests which
  are impaired under the Plan. Creditors whose Claims are not impaired under the
  Plan are being provided this Disclosure Statement for informational purposes
  only.
 
9 The financial projections annexed hereto as Exhibit "F" were prepared by the
  Debtors with a view toward compliance with Generally Accepted Accounting
  Principles. However, as is typical of projections prepared in connection with
  Chapter 11 cases, the Debtors' projections were not the subject of an audit by
  an outside accounting firm. In addition, such projections were not prepared
  with a view towards compliance with the guidelines established by the American
  Institute of Certified Public Accountants, the Financial Accounting Standards
  Board, or the Rules and Regulations of the Securities and Exchange Commission
  regarding projections.
 
                                        9
<PAGE>   17
 
TIONS OR THE VALUE OF THEIR PROPERTIES HAVE BEEN AUTHORIZED BY THE DEBTORS OTHER
THAN AS SET FORTH IN THIS DISCLOSURE STATEMENT. ANY INFORMATION, REPRESENTATIONS
OR INDUCEMENTS MADE TO OBTAIN YOUR ACCEPTANCE WHICH ARE OTHER THAN OR
INCONSISTENT WITH THE INFORMATION CONTAINED HEREIN AND IN THE PLAN SHOULD NOT BE
RELIED UPON BY ANY CREDITOR OR HOLDER OF A STOCK INTEREST IN VOTING ON THE PLAN.
 
     THIS DISCLOSURE STATEMENT HAS BEEN PREPARED IN ACCORDANCE WITH SECTION 1125
OF THE BANKRUPTCY CODE AND NOT IN ACCORDANCE WITH FEDERAL OR STATE SECURITIES
LAWS OR OTHER APPLICABLE NONBANKRUPTCY LAW. PERSONS OR ENTITIES HOLDING OR
TRADING IN OR OTHERWISE PURCHASING, SELLING OR TRANSFERRING CLAIMS AGAINST, OR
SECURITIES OF, THE DEBTORS SHOULD EVALUATE THIS DISCLOSURE STATEMENT IN LIGHT OF
THE PURPOSE FOR WHICH IT WAS PREPARED.
 
     IN ACCORDANCE WITH THE BANKRUPTCY CODE, THIS DISCLOSURE STATEMENT HAS NOT
BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND EXCHANGE COMMISSION, NOR HAS
SUCH COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THE STATEMENTS CONTAINED
HEREIN.
 
     WITH RESPECT TO CONTESTED MATTERS, ADVERSARY PROCEEDINGS AND OTHER PENDING
OR THREATENED ACTIONS, THIS DISCLOSURE STATEMENT AND THE INFORMATION CONTAINED
HEREIN SHALL NOT BE CONSTRUED AS AN ADMISSION OR STIPULATION, BUT RATHER AS
STATEMENTS MADE IN SETTLEMENT NEGOTIATIONS.
 
     The following documents filed by the Debtors with the Securities and
Exchange Commission pursuant to the Securities Exchange Act of 1934 are
incorporated in this Disclosure Statement by reference: (a) Annual Report on
Form 10-K for the fiscal year ended December 31, 1992, and (b) all other
documents subsequently filed by the Company pursuant to Section 13(a) of the
Securities Exchange Act of 1934, prior to the confirmation of the Plan by the
Bankruptcy Court including the latest quarterly report on Form 10-Q and other
documents.
 
B.  WHO MAY VOTE
 
     In order for the Plan to be confirmed by the Bankruptcy Court, each Class
of Claims or Stock Interests whose rights are impaired by the provisions of the
Plan must accept the Plan, except as otherwise provided below. In addition, only
holders of Claims or Stock Interests in impaired Classes which are Allowed
Claims or Allowed Stock Interests as of November 11, 1993 shall be entitled to
vote on the Plan.
 
     For purposes of this Disclosure Statement, Secured Claims in Class 2 and
Unsecured Claims in Class 4 under the Plan shall be deemed to be impaired and
holders of such Claims shall be entitled to vote on the Plan. In addition, every
holder of the (i) presently authorized (a) $13.50 cumulative convertible
preferred shares of Lone Star, par value $1.00 per share, and (b) $4.50
cumulative convertible preferred shares of Lone Star, par value $1.00 per share
(both holders of interests in Class 5), and (ii) $1.00 par value Common Stock of
Lone Star (holders of interests in Class 6) shall be entitled to vote on the
Plan provided that he/she is a holder of record as of November 11, 1993 and
provided that such Stock Interest has not been disallowed or disputed.
 
C.  VOTING INSTRUCTIONS
 
     As a holder of a Claim or Stock Interest, your vote on the Plan is
important. A Ballot to be used for voting to accept or reject the Plan
accompanies this Disclosure Statement. After carefully reviewing this Disclosure
Statement, including the attached exhibits, please indicate your acceptance or
rejection of the Plan by voting in favor of or against the Plan on the enclosed
Ballot and return it in the manner described below.
 
     With respect to publicly traded equity securities held in broker (street)
name, if any, banks and broker nominees (collectively, the "Nominees") voting on
behalf of more than one beneficial owner of such
 
                                       10
<PAGE>   18
 
securities have been requested to transmit a copy of this Disclosure Statement
and a Ballot to each beneficial owner of such securities. Each beneficial holder
of a security should return a fully completed Ballot to its respective Nominee
who will then compile the information contained on such Ballots onto master
Ballots supplied to such Nominees. The master Ballots will indicate both the
customer account number (or other identifying number) for each beneficial owner
and the total number of securities voting to accept or reject the Plan.
 
     Completed Ballots should be returned in the envelope enclosed and addressed
to:
 
     LONE STAR INDUSTRIES, INC. et al.
     Plan of Reorganization
     c/o Claudia King & Associates, Inc.
     P.O. Box 2010
     Jersey City, NJ 07303-2010
 
     Ballots may also be returned by hand or overnight courier in which case the
Ballot should be addressed to:
 
     LONE STAR INDUSTRIES, INC. et al.
     Plan of Reorganization
     c/o Claudia King & Associates, Inc.
     66 York Street
     Jersey City, NJ 07302
 
     BALLOTS MUST BE RECEIVED ON OR BEFORE 5 P.M. NEW YORK TIME ON THE DATE
INDICATED ON SUCH BALLOTS (THE "VOTING DEADLINE"). ANY BALLOTS RECEIVED AFTER
THE VOTING DEADLINE WILL NOT BE COUNTED NOR WILL ANY BALLOTS RECEIVED BY
FACSIMILE BE ACCEPTED.
 
     ANY BALLOT WHICH IS EXECUTED BY THE HOLDER OF AN ALLOWED CLAIM OR ALLOWED
STOCK INTEREST BUT WHICH DOES NOT INDICATE AN ACCEPTANCE OR REJECTION OF THE
PLAN SHALL BE DEEMED AN ACCEPTANCE OF THE PLAN.
 
     IF YOU HAVE ANY QUESTIONS REGARDING THE PROCEDURES FOR VOTING ON THE PLAN,
CONTACT THE DEBTORS' INFORMATION AGENT:
 
     Morrow & Co., Inc.
     909 Third Avenue
     New York, NY 10022
     (212) 754-8000 or
     Call Toll Free (800) 662-5200
 
                                       11
<PAGE>   19
 
D.  SUMMARY OF PROCEDURES RESPECTING ACCEPTANCE OR REJECTION OF THE PLAN
 
     Under the Bankruptcy Code, a Class of Claims is deemed to have accepted the
Plan if it is accepted by creditors in such Class who, having voted on the Plan,
hold at least two-thirds in amount and more than one-half in number of the
Allowed Claims of such Class. A Class of Stock Interests is deemed to have
accepted the Plan if it is accepted by holders of Stock Interests who, having
voted on the Plan, hold at least two-thirds in amount of the Allowed Stock
Interests of such Class.
 
     If the Plan is not accepted by all of the impaired Classes of Claims and
Stock Interests, the Plan may still be confirmed by the Bankruptcy Court,
pursuant to Section 1129(b) of the Bankruptcy Code, if the Plan has been
accepted by at least one impaired Class of Claims, and the Bankruptcy Court
determines, among other things, that the Plan "does not discriminate unfairly"
and is "fair and equitable" with respect to each non-accepting impaired Class of
Claims or Stock Interests.
 
     A more detailed description concerning the acceptance and confirmation of
the Plan of Reorganization is set forth later in this Disclosure Statement in
the section entitled "Confirmation of the Plan of Reorganization" at pages 101
through 110.
 
E.  CONFIRMATION HEARING
 
     Pursuant to Section 1128 of the Bankruptcy Code and Rule 3017(c) of the
Bankruptcy Rules, the Bankruptcy Court has scheduled the Confirmation Hearing
for 10 a.m., on January 5, 1994, before the Honorable Howard Schwartzberg, in
his courtroom at the United States Bankruptcy Court, 101 East Post Road, White
Plains, New York 10601. The Confirmation Hearing may be adjourned from time to
time by the Bankruptcy Court without further notice except for the announcement
of such adjournment by the Bankruptcy Court in open court at such hearing.
 
F.  OBJECTIONS TO CONFIRMATION
 
     Any objection to Confirmation of the Plan must be in writing and filed and
served as required by the Bankruptcy Court pursuant to the Disclosure Statement
Approval Order, a copy of which accompanies this Disclosure Statement.
 
                    II. BACKGROUND AND EVENTS PRECIPITATING
                             THE CHAPTER 11 FILINGS
 
A.  GENERAL
 
     The Debtors, together with their non-Debtor affiliates (collectively, the
"Affiliated Companies"), consist of numerous legal entities with varying levels
of business activities. Lone Star is the direct or indirect parent of the
Affiliated Companies. The Affiliated Companies comprise a large and complex
enterprise and are leading producers of cement and a major source of ready-mixed
concrete, sand and gravel, crushed stone, precast concrete products and other
construction materials. The Affiliated Companies' cement, concrete and concrete
products operations include the manufacture and distribution of portland,
masonry, oil-well and Pyrament(R) cement, and the production and distribution of
ready-mixed concrete and concrete products. The Affiliated Companies'
construction aggregate operations include the mining, processing and
distribution of sand, gravel and crushed stone.
 
     On the Filing Date, the Affiliated Companies manufactured and distributed
their products throughout the United States, and in Canada and South America.
The Affiliated Companies also owned interests in several joint ventures having
operations in the United States and South America. A description of the Debtors'
interest in these various joint ventures is set forth at pages 13 through 14 of
this Disclosure Statement.
 
     On the Filing Date, the Debtors and their Affiliated Companies employed
approximately 2,000 employees. At present, as a result of certain workforce
reductions and operational changes, the number of
 
                                       12
<PAGE>   20
 
individuals employed by the Debtors has been reduced to approximately 1,500, of
whom over half are members of various labor unions.
 
     1.   OVERVIEW OF OPERATIONS
 
     As set forth later in this Disclosure Statement, the Debtors' Plan provides
for a reorganized company which will be comprised of and centered around the
Debtors' core domestic cement, construction aggregates and ready-mixed concrete
operations (see pages 70 through 73).
 
     a.   Cement Operations
 
     On the Filing Date, the Debtors' domestic cement operations were primarily
located in the Middle and Southwestern United States, with additional facilities
located in both the Northeast and Southeast. Specifically, on or about the
Filing Date, the Company and its Affiliated Companies operated domestic portland
cement plants located in California, Hawaii, Illinois, Indiana, Kansas,
Kentucky, Missouri, Oklahoma, Pennsylvania (two plants) and Texas. The total
1990 annual rated cement capacity of these operational facilities was
approximately 6,900,000 tons. The Affiliated Companies also owned two
non-operational cement facilities. In addition, the Company owned a cement plant
in Florida which it leased to a third party who owned the reserves used by that
plant and a cement plant in Louisiana which it also leased to a third party.
 
     The cement produced domestically by the Affiliated Companies was sold
through various internal production and distribution facilities. Such
distribution facilities were operated in California (two locations), Florida
(leased to a third party), Hawaii (five locations), Illinois, Indiana (four
locations), Kansas (two locations), Kentucky, Louisiana (two locations leased to
a third party), Mississippi, Missouri, New York (one location which was leased
to a third party), Ohio, Oklahoma (two locations), Tennessee (two locations),
Texas (three locations), West Virginia (two locations) and Wisconsin. Marketing
of cement was handled by internal sales organizations located at certain plants
and terminals and at various sales offices in the United States.
 
     b.   Aggregates Operations
 
     On the Filing Date, the Company and certain of its affiliates produced
construction aggregates (including sand, gravel, crushed stone and other stone
products, and special purpose industrial sands) in the United States,
principally in California, Hawaii, Illinois, Massachusetts, Mississippi and New
York. Such items were also produced in Canada. Of the total amount of aggregates
shipped domestically by the Company and its Affiliated Companies in 1990,
approximately 14% was used in their ready-mixed concrete and concrete products
operations, with the balance sold to third parties.
 
     c.   Ready-Mixed Concrete Operations
 
     As of the Filing Date, Lone Star and certain of its Affiliated Companies
produced ready-mixed concrete and related products. The ready-mix operations
were located primarily at facilities in Illinois, Tennessee, Massachusetts,
California and Hawaii.
 
     d.   Domestic Joint Ventures
 
     On the Filing Date, Lone Star, either directly or indirectly, was a
principal party to seven separate domestic joint ventures, each engaged in the
manufacture of cement, ready-mixed concrete, construction aggregates, or certain
other cement and concrete products. Typically, the Company owned approximately a
50% interest in each of the joint ventures, although in some cases ownership was
less. Pursuant to the various joint venture agreements, the day-to-day
operations of the joint ventures were not controlled by Lone Star.
 
     The Debtors have determined that, for various reasons, their interests in
the joint ventures in which they still participate, except for Kosmos Cement
Company ("Kosmos"), are not necessary for the success of Reorganized Lone Star's
business operations and are, therefore, characterized in the Plan as Non-Core
Assets.
 
                                       13
<PAGE>   21
 
The operations conducted by such joint ventures are described in more detail in
this Disclosure Statement in the section entitled "Core vs. Non-Core Assets" at
pages 70 through 78.
 
     e.   International Operations
 
     On the Filing Date, the Debtors, through certain wholly-owned subsidiaries
or joint ventures, produced and sold cement and related products at various
facilities outside of the United States, primarily in Canada and South America.
As noted in Section I(A)(3) of this Disclosure Statement, prior to the Filing
Date, Lone Star's management determined that the Company's strategic goals and
objectives should be focused primarily on the reinforcement and rehabilitation
of its core domestic operations and away from off-shore operations.
Consequently, the Debtors have sold all of their South American interests.
 
B.  MAJOR SOURCES OF PRE-PETITION FINANCING
 
     Aside from revenues generated from operations, the Debtors' pre-petition
operations were financed, in substantial part, by short-term borrowings, a
revolving credit agreement, an accounts receivable agreement, certain long-term
debt obligations, industrial development bonds, a production payment facility
and a bareboat charter transaction.
 
     1.   REVOLVING CREDIT AGREEMENT
 
     Pursuant to a credit agreement dated April 28, 1988, as amended, among Lone
Star, a group of banks and Morgan Guaranty Trust Company of New York ("Morgan
Guaranty"), as agent, Lone Star obtained a revolving line of credit for up to
$250,000,000.
 
     The credit agreement was originally scheduled to terminate on April 28,
1991, but was later amended to reflect that the agreement would terminate on
November 30, 1990. In October 1990, Lone Star reduced the aggregate amount of
lending commitments under the revolving credit agreement to $84,000,000 and
borrowed $77,952,000 of the reduced commitments. The amounts borrowed (plus
applicable interest) were repaid by Lone Star on or about November 23, 1990, and
the credit agreement was cancelled by Lone Star at that time.
 
     Prior to the Filing Date, Lone Star attempted to renew the credit agreement
or obtain a similar agreement with other institutions. However, Lone Star was
unable to obtain such an agreement on acceptable terms and conditions. As set
forth more fully below, Lone Star's inability to obtain such financing was a
contributing factor to the Debtors' Chapter 11 filings.
 
     2.   ACCOUNTS RECEIVABLE AGREEMENT
 
     Pursuant to an Agreement to Purchase Receivables dated as of September 1,
1985, as amended and extended, Morgan Guaranty, as agent for certain purchasers,
agreed to purchase certain of Lone Star's accounts receivable. As of November,
1990, Morgan Guaranty purchased approximately $46,000,000 of Lone Star's
accounts receivable for which it paid approximately $42,000,000. On or about
November 9, 1990, Lone Star repurchased the accounts receivable, including an
unpaid discount, from Morgan Guaranty for $42,324,723.76, and the accounts
receivable agreement terminated. The Debtors believe that the amounts ultimately
collected on the receivables repurchased from Morgan Guaranty exceeded the
amount paid by Lone Star.
 
     3.   LONG-TERM DEBT OBLIGATIONS
 
     On March 26, 1987, the Debtors sold $150,000,000 in principal amount of
8.75% promissory notes due March 26, 1992 through a private placement to certain
financial institutions.
 
     On February 24, 1988, the Debtors sold $50,000,000 in principal amount of
promissory notes to Metropolitan Life Insurance Company and its affiliates.
These notes had an interest rate of 9.50% and were due on February 24, 1991.
 
                                       14
<PAGE>   22
 
     On February 29, 1988, the Debtors sold $25,000,000 in principal amount of a
promissory note to Credit Suisse. This note has an interest rate of 9.90% and is
due on March 7, 1995.
 
     On May 3, 1988, the Debtors sold $90,000,000 in principal amount of 9.75%
promissory notes through a private placement to various financial institutions.
$45,000,000 of these notes were due on May 3, 1993 and the remaining $45,000,000
are due on May 3, 1994.
 
     In addition to the above unsecured obligations, on the Filing Date, the
Debtors had other miscellaneous unsecured long-term debt obligations of
approximately $106,000 (in principal amount) and miscellaneous secured long-term
debt obligations with an aggregate outstanding principal amount of approximately
$2,000,000.(10)
 
     Claims have been scheduled or filed in the Debtors' Chapter 11 cases by the
various noteholders in connection with the above-referenced obligations. The
Debtors anticipate that the claims arising from the unsecured and secured
long-term debt obligations will ultimately be allowed in the aggregate amount of
approximately $321,000,000 (including principal and accrued and unpaid interest
as of the Filing Date) and approximately $970,000 (in principal amount),
respectively.
 
     4.   INDUSTRIAL DEVELOPMENT BONDS
 
     Prior to the Filing Date, the Debtors (and in one instance, a joint
venture) arranged for various government authorities (collectively, the
"Authorities") to issue industrial revenue, industrial development and pollution
control revenue bonds (collectively, the "Bonds") with variable interest rates
in order to finance the acquisition of pollution control facilities and other
assets located throughout the United States, or refinance certain pollution
control equipment and other assets located at certain facilities. The Debtors
are obligated under various loan, sale, lease or guarantee agreements with the
Authorities to pay the amounts due on the outstanding Bonds over various periods
of time. Pursuant to various trust indentures (the "Indentures") executed in
connection with the Bonds, the Authorities assigned their rights under such
loan, sale, lease or guarantee agreements relating to the Bonds to certain
indenture trustees (the "Indenture Trustees"). As of the Filing Date, the
amounts outstanding under the Bonds aggregated approximately $75,225,000 in
principal amount.
 
     Pursuant to various agreements executed in connection with the Bonds, in
most instances, payment of the principal amount and interest on the Bonds may
be, or are required to be, made by draws upon various letters of credit (the
"Letters of Credit") issued by certain banks at the Debtors' request. Pursuant
to various reimbursement agreements executed prior to the Filing Date, the
Debtors are obligated to reimburse these banks for amounts drawn under the
Letters of Credit. Set forth below is a summary of the various Bond issues.
 
INDUSTRIAL DEVELOPMENT AND POLLUTION CONTROL BONDS SUPPORTED BY LETTERS
OF CREDIT ISSUED BY THE MITSUBISHI BANK, LIMITED

 
     -  $8,300,000 of Pollution Control Revenue Bonds issued pursuant to an
       Indenture of Trust dated as of July 1, 1984 between the State of Missouri
       Environmental Improvement and Energy Resources Authority and Mercantile
       Trust Company National Association, as trustee.
 
     -  $800,000 of Environmental Control Revenue Bonds issued pursuant to an
       Indenture of Trust dated August 28, 1984 between the State of Missouri
       Environmental Improvement and Energy Resources Authority and Mercantile
       Trust Company National Association, as trustee.
 
     -  $1,000,000 of Industrial Development Revenue Bonds issued pursuant to a
       Trust Indenture dated February 2, 1984 between the City of Oglesby,
       Illinois and Continental Illinois National Bank, as trustee.
 
- ---------------
 
10 During these Chapter 11 proceedings, through a Bankruptcy Court approved
   transaction, approximately $1,000,000 of such amount was eliminated when the
   Debtors surrendered a parcel of real property to a non-recourse secured
   lender.
 
                                       15
<PAGE>   23
 
     -  $19,000,000 of Floating Rate Monthly Demand Industrial Dock and Wharf
       Revenue Bonds issued pursuant to an Indenture of Trust and Pledge dated
       as of July 1, 1981 and a Supplement thereto dated as of December 2, 1982
       between the Industrial Development Board of the City of New Orleans,
       Louisiana, Inc. and First National Bank of Commerce, as trustee.
 
     -  $1,000,000 of Industrial Development Revenue Bonds issued pursuant to an
       Indenture of Trust and Pledge dated as of May 1, 1984 between the
       Industrial Development Board of the City of New Orleans, Louisiana, Inc.
       and First National Bank of Commerce, as trustee.
 
     -  $6,800,000 of Pollution Control Revenue Bonds issued pursuant to an
       Indenture of Trust dated as of December 1, 1983 between California
       Pollution Control Financing Authority and Continental Illinois National
       Bank and Trust Company of Chicago, as trustee.
 
     -  $1,000,000 of Industrial Revenue Bonds issued pursuant to an Indenture
       of Trust dated April 1, 1984 between the California Pollution Control
       Financing Authority and Continental Illinois National Bank and Trust
       Company of Chicago, as trustee.
 
     -  $6,200,000 of Pollution Control Revenue Bonds issued pursuant to an
       Indenture of Trust dated as of January 1, 1983 between the Pryor County
       Industrial Authority and Continental Illinois National Bank and Trust
       Company of Chicago, as trustee.
 
     -  $1,000,000 of Pollution Control Revenue Bonds issued pursuant to an
       Indenture of Trust dated March 1, 1984 between the Pryor County
       Industrial Authority and Continental Illinois National Bank and Trust
       Company of Chicago, as trustee.
 
OTHER INDUSTRIAL DEVELOPMENT AND POLLUTION CONTROL BONDS
 
     -  $3,000,000 of Pollution Control Flexible Rate Refunding Revenue Bonds
       issued pursuant to an Indenture of Trust dated November 25, 1986 between
       the Industrial Development Authority of Botetourt County, Virginia and
       The Central Trust Company, as trustee.
 
     -  $5,000,000 of Pollution Control Flexible Rate Refunding Revenue Bonds
       issued pursuant to an Indenture of Trust dated December 1, 1986 between
       the Industrial Development Authority of Botetourt County, Virginia and
       The Central Trust Company, as trustee.
 
     -  $3,138,000 of Pollution Control Flexible Rate Refunding Revenue Bonds
       issued pursuant to a Trust Indenture dated November 1, 1986 between the
       Industrial Development Board of the City of Demopolis, Alabama and The
       Central Trust Company, as trustee.
 
     -  $5,234,000 of Pollution Control Flexible Rate Refunding Revenue Bonds
       issued pursuant to a Trust Indenture dated December 1, 1986 between the
       Industrial Development Board of the City of Demopolis, Alabama and The
       Central Trust Company, as trustee.
 
     -  $2,400,000 of Industrial Development Revenue Bonds (Lone Star Project)
       Series of 1984 issued pursuant to an Indenture of Trust dated April 1,
       1984 between the Industrial Development Authority of the County of
       Chesterfield, Virginia and the United Virginia Bank (now Crestar Bank),
       as trustee.
 
INDUSTRIAL DEVELOPMENT BONDS SUPPORTED BY LETTER OF CREDIT ISSUED BY CRESTAR
BANK
 
     -  $3,500,000 of Industrial Development Revenue Bonds (Lone Star Project)
       Series of 1984 issued pursuant to an Indenture of Trust dated October 1,
       1984 between the Industrial Development Authority of the City of
       Richmond, Virginia and the Crestar Bank, as trustee.
 
OTHER INDUSTRIAL DEVELOPMENT AND POLLUTION CONTROL BONDS
 
     -  $2,500,000 of Industrial Revenue Bonds Series 1978 ($1,000,000) and
       Series 1978B ($1,500,000) issued pursuant to Indentures of Trust dated
       August 1, 1978 and December 1, 1978, respectively, between the Industrial
       Development Authority of the City of Chesapeake, Virginia and First
       Merchants National Bank, later Sovran Bank (now NationsBank), as trustee.
 
                                       16
<PAGE>   24
 
     -  $1,000,000 ($387,728.68 as of the Filing Date) of Industrial Development
       Bonds issued pursuant to a Note Purchase Agreement and Agreement of Sale
       dated December 1, 1980 between the Industrial Development Authority of
       the County of Hanover (VA) and United Virginia Bank (now Crestar Bank).
 
     -  $3,500,000 ($1,000,000 outstanding at the Filing Date) of Pollution
       Control Bonds issued pursuant to a Trust Indenture dated June 1, 1972
       between the North Alabama Environmental Improvement Authority and the
       State National Bank of Alabama (now Central Bank of the South), as
       trustee.
 
     -  $3,300,000 ($1,765,000 outstanding at the Filing Date) of Pollution
       Control Revenue Bonds (Series A of 1973) pursuant to a Trust Indenture
       dated December 15, 1973 between the Northampton County Industrial
       Development Authority and the Commerce Union Bank (Tennessee) (now
       NationsBank), as trustee.
 
     The Indenture Trustees, the Authorities and certain individual
bondholders filed proofs of claim in the Debtors' Chapter 11 proceedings with
respect to the outstanding amounts due under the Bonds. In addition,
Mitsubishi, Credit Commercial de France ("CCF"),(11) and Credit Suisse filed
proofs of claim based on the reimbursement obligations of the Debtors in regard
to their respective Letters of Credit.
 
     The Debtors determined that because the claims of the Indenture Trustees,
the Authorities and the individual Bondholders could be satisfied by draws on
the Letters of Credit, such claims were not valid. Consequently, subsequent to
the Filing Date, the Debtors obtained entry of orders estimating the claims of
the Indenture Trustees and the Authorities at zero dollars for all purposes (see
pages 52 through 55 of this Disclosure Statement).
 
     As for the proofs of claim filed by Mitsubishi and CCF, the Debtors
disputed the amount, status and priority of such claims. However, the Debtors
and the banks reached a settlement of their disputes pursuant to which the
claims of Mitsubishi and CCF were allowed as general unsecured claims in the
aggregate amount of $45,328,871.07, subject to reduction by certain
post-petition payments. This settlement with Mitsubishi and CCF was approved by
the Bankruptcy Court in April, 1992 (see pages 52 through 55 of this Disclosure
Statement). As for the Credit Suisse proofs of claim, the parties recently
reached a settlement in principle respecting the allowed amount and treatment of
such claims (see page 54 of this Disclosure Statement).
 
INDUSTRIAL REVENUE BONDS ISSUED BY THE CITY OF KANSAS CITY, KANSAS
 
     Prior to the Filing Date, the City of Kansas City, Kansas (the "City")
issued two series industrial revenue bonds (the "Kansas City Bonds") in the
aggregate principal amount of $2,200,000 in order to finance the City's
purchase, development and construction of certain facilities located in Kansas
City, Kansas (the "Facility"), which Facility was operated by Lonestar-KC
Concrete Tie Company ("Lonestar-KC") (then a joint venture between Lone Star and
Kansas City Southern Industries, Inc. ("Kansas Southern")). Lonestar-KC is the
predecessor in interest to San-Vel Concrete Corporation ("San-Vel"), a Debtor
herein.
 
     Contemporaneously with the issuance of the Bonds, the City and Lonestar-KC
entered into a lease agreement dated November 1, 1980, whereby the City leased
the Facility to Lonestar-KC for an initial term of twenty (20) years commencing
on the date of the KC Lease and ending on October 31, 2000. Lonestar-KC's
payments of the principal, interest and premiums on the Bonds were guaranteed by
its two principals, Lone Star and Kansas Southern, pursuant to guaranty
agreements (collectively, the "Guaranty Agreements") with the City's fiscal
agent, Security Bank of Kansas City (the "Fiscal Agent"), each executed on or
about November 1, 1980.
 
     In February, 1992, Lone Star and San-Vel filed a complaint and objection to
claims (the "Complaint") in the Bankruptcy Court commencing an adversary
proceeding (the "Action") against the City and the Fiscal Agent. The City and
Fiscal Agent filed an amended joint answer to the Complaint and later moved for
summary judgment.
 
- ---------------
 
11 On or prior to its issuance of Letters of Credit, Mitsubishi sold a 44.35%
   interest in its Letters of Credit to CCF.
 
                                       17
<PAGE>   25
 
     In an effort to avoid the continuation of potentially costly and time
consuming litigation, the parties commenced negotiations respecting the
resolution of all issues relating to the Kansas City Bonds and the Facility. As
a result of such negotiations, in November, 1992 the parties agreed to a
settlement, which was incorporated into a proposed stipulation (the "KC
Stipulation"), the material terms of which are described immediately below.
 
     The KC Stipulation provides that the Action will be dismissed with
prejudice upon the entry of an order by the Bankruptcy Court approving the KC
Stipulation. Additionally, the KC Lease will be deemed rejected pursuant to
Section 365(a) of the Bankruptcy Code as of date of the entry of such order and
the City shall be granted an allowed unsecured claim in the amount of $100,000
against San-Vel's estate for damages arising from the rejection of the KC Lease.
 
     The City shall also be granted administrative claims (i) in the amount of
$168,000 against San-Vel's estate for post-petition rent, without prejudice to
the rights of Kansas Southern to assert claims arising out of its payments on
behalf of Lone Star and/or San-Vel pursuant to the Kansas Southern Guaranty and
the Assignment and Assumption Agreement, and (ii) in the amount of $75,000
against San-Vel's estate for legal fees and other expenses incurred in the
post-petition period in connection with the KC Lease.
 
     The KC Stipulation further provides that the Series B Bondholders' Claim
shall become an allowed unsecured claim against Lone Star in the amount of
$1,112,527.78 representing principal and accrued interest due as of the Filing
Date at the rate of 10 1/4%. Furthermore, the City agreed that Lone Star and
San-Vel would have the exclusive right, through and including October 1, 1993,
to market and/or sell the Facility to a third party purchaser for a cash
purchase price (net sales proceeds) of not less than $250,000 (the "Cash
Floor"). Proceeds from any sale will be credited against the Allowed Claims of
the Bondholders as set forth in the KC Stipulation.
 
     In accordance with the terms of the KC Stipulation, upon information and
belief, in February, 1993, the Bondholders approved such stipulation. Presently,
Lone Star believes that it has reached an agreement in principle with a
purchaser for the sale of the Facility for a cash purchase price of
approximately $500,000. The Debtors have filed a motion with the Bankruptcy
Court seeking approval of the KC Stipulation and a hearing thereon is presently
scheduled to be held in November, 1993.
 
     5.   PRODUCTION PAYMENT FACILITY
 
     Prior to the Filing Date, Lone Star entered into a complex transaction
regarding the purchase by John Fouhey (as trustee for the Selleck Hill Trust),
of limestone and other minerals from Lone Star, and Lone Star's subsequent use
of such minerals in the manufacture of cement. Pursuant to an amended and
restated conveyance of production payment (the "Production Payment"), dated as
of September 1, 1988, Lone Star conveyed approximately 131,000,000 tons of
minerals to the trustee in consideration of a $75,000,000 payment made by the
trustee to Lone Star. Such minerals are located at the quarries associated with
the Greencastle, Indiana and Pryor, Oklahoma cement plants. Pursuant to the
Production Payment, Lone Star is required, among other things, to keep both the
Pryor and Greencastle plants and equipment located thereon, and the minerals and
proceeds of the marketable product produced from such minerals (which may
include accounts receivable), free and clear of all liens, encumbrances and
security interests. Pursuant to an amended and restated marketing contract,
dated as of September 1, 1988, Lone Star had the right and obligation to use the
minerals for processing into cement and other marketable products in return for
payments to the trustee, on certain specific dates, of amounts equal to the
principal due and payable under certain promissory notes executed by the trustee
in connection with a $75,000,000 loan made by certain banks to the trustee and
used by the trustee to pay Lone Star for the minerals purchased. Pursuant to an
amended and restated expense and interest agreement, dated as of September 1,
1988, Lone Star agreed to pay all interest and certain other amounts due and
payable by the trustee under the Production Payment notes. On the Filing Date,
approximately $39,000,000 of principal was outstanding under the Production
Payment and related agreements.
 
     Subsequent to the Filing Date, the Debtors determined that they required
the use of the minerals in the operation of their businesses and were requested
to assume the Production Payment and related agreements
 
                                       18
<PAGE>   26
 
and make all payments required thereunder. However, a dispute arose as to
whether the conveyance made pursuant to the Production Payment was a true
conveyance or whether it was a conveyance for security. This dispute was
temporarily resolved pursuant to stipulations approved by the Bankruptcy Court
pursuant to which Lone Star has made six payments of $4,000,000 each to the
trustee for minerals used between the Filing Date and February 1, 1994. These
stipulations expressly reserved the rights of all parties-in-interest with
respect to all issues surrounding the Production Payment transaction and the
payments made by Lone Star.
 
     In September, 1993, Lone Star and the parties involved in the production
payment transaction reached a settlement in principle modifying the economic
terms of such transaction and resolving the issues surrounding the payments made
by Lone Star and the legal characterization of transaction. In connection
therewith, the Debtors prepared and filed an application with the Bankruptcy
Court seeking, among other things, approval of the production payment
transaction settlement in principle. This motion provides that documentation
with respect to such settlement would be filed prior to confirmation in
connection with such motion. Since the filing of the motion, discussions have
continued and the Debtors believe they have resolved all outstanding issues
respecting the production payment transaction.
 
     In general, this settlement provides for the modification of the Production
Payment transaction and the assumption (as modified), as executory contracts, of
Lone Star's obligations under the production payment conveyance, marketing
contract and other related documents, pursuant to which, in effect, a new note
having a term of five years commencing on the Effective Date of the Plan and
ending July 31, 1998, will be executed by the trustee in favor of the banks in
an amount equal to the sum of (i) $20,800,000 representing principal and
interest accrued at the default rate of interest (as set forth in the term loan
agreement between the banks and trustee) through April 1, 1993 (which amount
assumes Lone Star's payment of $4 million to the trustee in about September,
1993), and (ii) interest accrued at the same rate on all unpaid amounts from
April 1, 1993 through the Effective Date of the Plan. Lone Star shall have the
option to choose the interest rate to be applied to the outstanding balance of
such notes of either (i) (a) LIBOR + 1.75%, or (b) prime during each of the
first two years of the notes, and (ii)(a) LIBOR + 2.5%, or (b) prime + .25%
during each of the third, fourth and fifth years of the notes. Amortization of
the new note shall commence in 1994 with semi-annual payments of $1,000,000 due
on January 31, and July 31. Thereafter, semiannual payments occurring on each
January 31, and July 31, shall be $1,500,000 in 1995, $2,000,000 in 1996 and
$2,500,000 in 1997. On January 31, 1998 the payment shall be $3,400,000 with the
balance of the new note due on July 31, 1998.
 
     In addition, although as part of the original Production Payment, Lone Star
agreed not to encumber either the Greencastle, Indiana or Pryor, Oklahoma cement
plants and the minerals and proceeds of the marketable product produced from
such minerals (including accounts receivable), the parties have agreed that Lone
Star shall be permitted to grant security interests in the inventories derived
from minerals and marketable product and the accounts receivable related thereto
in connection with a working capital facility currently anticipated to be
$35,000,000. In connection with the agreement to permit such liens, Lone Star
has agreed to modify the documentation to provide that Lone Star will be
required to make such payments in advance for minerals used by the Pryor and
Greencastle plants and to take or pay for minerals in amounts sufficient to
permit the trust to service the new note. Furthermore, the parties have agreed
to include a cross-default provision with respect to the Senior Note Indenture
and working capital facility in connection with the new note.
 
     The Debtors believe that the settlement is favorable and in the best
interests of their estates inasmuch as it consensually resolves the issues
surrounding the characterization of the transaction in a manner which is
beneficial to the Debtors' estates. The Debtors' projected cash flows assume
approval of the settlement. The terms of this agreement in principle are subject
to approval of both the Bankruptcy Court and the Creditors' Committee. In
addition, any final order approving the treatment of the claims and obligations
arising under, in connection with or related to the Production Payment shall
also be in form and substance reasonably satisfactory to the lenders under the
term loan. If implementation of this agreement in principle is significantly
delayed beyond January 31, 1994, Lone Star anticipates that it will seek
Bankruptcy Court authorization to make an additional interim payment of
$4,000,000 to the trustee on substantially the same terms as those contained in
the stipulations described above.
 
                                       19
<PAGE>   27
 
     If the settlement is not approved and the Debtors are unable to
recharacterize the transaction as a secured financing, because the minerals
involved in the transaction are necessary to the operation of the Greencastle,
Indiana and Pryor, Oklahoma plants, the Debtors would probably have to assume
the relevant agreements including the marketing contract and in connection
therewith make a payment of approximately $11 million to cure defaults
thereunder (while simultaneously losing the benefits of the proposed
settlement). Such payment would have a negative impact on the Debtors' projected
cash flows as a result of the shorter maturity and amortization required under
the terms of the existing agreements. Moreover, even if the Debtors were
successful in litigation regarding the recharacterization of the transaction, in
light of estimated recoveries under the Plan and given the costs of litigation,
the Debtors do not believe the benefits gained from such litigation would be
materially greater than those provided by the proposed settlement. The hearing
respecting the motion to approve the production payment agreement in principle
is currently scheduled for early November, 1993.
 
     6.   BAREBOAT CHARTER TRANSACTION
 
     Prior to the Filing Date, NYTR Transportation Corp. ("NYTR") (a Debtor
herein), Olive Leasing Corp. ("Olive"), Citicorp Industrial Credit Corp.
("Citicorp") and Lease Financing Corp. ("LFC") engaged in complex transactions
respecting the sale for approximately $18,000,000 of 116 scows (the "Scows") by
NYTR to Olive and the leaseback of such scows to NYTR. The purchase price was
paid by Olive as follows: approximately $12,000,000 in cash and the remainder by
a promissory note executed by Olive in favor of NYTR. As part of the security
for such note, Olive executed a subordinated security agreement and a second
preferred fleet mortgage in favor of NYTR which were both subordinate to a
security agreement and fleet mortgage executed by Olive in favor of Citicorp.
 
     Simultaneously with the Scow conveyance, Olive, as lessor, and NYTR, as
lessee, entered into a charter agreement pursuant to which Olive leased the
Scows back to NYTR for a term ending December 31, 1995, at which time, NYTR has
the option of purchasing the Scows from Olive. Pursuant to the charter
agreement, NYTR is required to pay all charter hire sums (i.e., rent) for use of
the Scows directly to Olive.
 
     In connection with this transaction, Citicorp advanced approximately
$10,000,000 to Olive which was applied towards the purchase price of the Scows
and Olive executed a note in the principal amount of $10,000,000 with interest
payable at the rate of 16% due January 1, 1994. As security for this note,
Citicorp and Olive entered into a security agreement and in connection therewith
Olive executed and delivered a first preferred fleet mortgage to Citicorp.
 
     Subsequent to the Filing Date, the Debtors determined that their continued
use of the Scows was crucial to the ongoing operations of NYTR inasmuch as
without the use of such Scows, the Debtors would not be able to continue
operations which had historically been profitable. However, a dispute arose as
to whether the Scow sale and leaseback transaction was a true sale or a
conveyance for security. This dispute was temporarily resolved through
stipulations approved by the Bankruptcy Court pursuant to which NYTR was
authorized to continue to use the Scows and to make two advance payments of
charter hire. These stipulations expressly reserved the rights of all
parties-in-interest with respect to all issues surrounding the sale leaseback
transaction and the payments made by NYTR.
 
     Thereafter, the Debtors resolved this dispute by negotiating an amendment
to the charter which, among other things, reduced the payments that NYTR was
required to make thereunder. In order to assure that the Debtors would have
continued use of the Scows and in order to ensure NYTR's ability to exercise the
purchase option in the charter, the Debtors obtained entry of an order, on or
about April 14, 1992, (i) approving the amendment to the charter, and (ii)
authorizing the Debtors to assume the charter, as amended. Pursuant to the
amended charter, the interest rate payable by Olive to Citicorp under its
promissory note was reduced from 16% to 9.9%, which reduction, in turn, reduced
NYTR's charter hire payments.(12) The terms of the Debtors' option to purchase 
the Scows were not affected by the amendments to the charter (i.e.,   
approximately $5,000,000 upon expiration of the charter). The Debtors  
anticipate that during the                                                   
                          
- ---------------
 
12 To date, the terms of the amended Charter have resulted in a savings to the
   Debtors' estates of approximately $431,000.
 
                                       20
<PAGE>   28
 
remaining term of the charter, based upon current transportation volumes,
NYTR's payment of charter hire will be, on average, approximately $3,700,000 per
annum or approximately $8,900,000 in the aggregate over the term of the charter.
 
C.  PRE-PETITION CAPITAL STRUCTURE
 
     As of the Filing Date, Lone Star had approximately 16,560,000 shares of
common stock, $1.00 par value per share, issued and outstanding. Lone Star's
common stock is presently traded on the New York Stock Exchange.
 
     In addition, Lone Star has two outstanding series of preferred stock. As of
the Filing Date, the Company had 375,000 shares outstanding of its $13.50
cumulative convertible preferred shares, par value $1.00 per share, and 12,054
shares outstanding of its $4.50 cumulative convertible preferred shares, par
value $1.00 per share. As of the Filing Date, the amount of the preferred
shareholders' aggregate investment was approximately $37,700,000.
 
D.  PRE-PETITION CASH MANAGEMENT SYSTEM
 
     Prior to the Filing Date, Lone Star's treasury department effectively
operated as a corporate bank to the Debtors. In this respect, the Debtors
developed network banks throughout the United States to collect and disburse
funds as needed in their ordinary course operations on a daily basis.
Specifically, substantially all payments from customers were sent on a daily
basis to approximately seven "lock box" accounts maintained by Lone Star. The
"lock box" accounts were swept on a daily basis into a concentration account
(the "Concentration Account") maintained at Sovran Bank (now NationsBank) in
Richmond, Virginia.
 
     With respect to the disbursement of funds, Lone Star maintained payroll
facilities (which were funded in advance of payroll tax requirements and payroll
checks being presented for payment) and controlled disbursement accounts. The
disbursement accounts maintained zero balances and checks drawn against such
accounts were funded from the Concentration Account as such checks were
presented. To effectuate such funding, Lone Star was advised daily by various
banks of the total dollar amount of the checks to be presented against each
account that day.
 
     Lone Star's cash management system has continued subsequent to the Filing
Date pursuant to orders entered by the Bankruptcy Court (see pages 25 through 26
of this Disclosure Statement).
 
E.  EVENTS PRECIPITATING CHAPTER 11 FILINGS
 
     In November, 1989, in an effort to improve operating results and generate
cash to pay certain maturing debt obligations, the Company implemented a
restructuring program involving the sale of certain operations and facilities of
the Affiliated Companies and the reduction of overhead expenses. Although
progress had been made in implementing the restructuring program, due in part to
depressed economic conditions and a shortage in financing available to potential
purchasers in 1990, the Company was unable to complete the sale of all such
assets within the projected time frame.
 
     Additionally, business conditions in the Company's markets continued to
deteriorate during 1990 and the Company's sources of financing grew increasingly
restricted. Specifically, Lone Star's revolving credit agreement was terminated
in November, 1990, and Lone Star was unable to negotiate a replacement credit
agreement on acceptable terms. In addition, in November, 1990, certain banks
which had been purchasing Lone Star's accounts receivable refused to extend the
term of their existing agreement or enter into a new agreement. During the
fourth quarter of 1990, the Company was unable to secure short-term borrowing
arrangements on acceptable terms and conditions. Without a facility such as a
multi-year revolving credit agreement or other sources of cash, the Company
would, in the first quarter of 1991, probably have been in default under
long-term debt agreements relating to the 8 3/4% Promissory Notes issued by Lone
Star.
 
     In addition to these financing problems, as more fully set forth in Section
III(G) of this Disclosure Statement, prior to the Filing Date, Lone Star, along
with San-Vel and Lone Star Transportation Corporation (both Debtors herein) were
defendants in seven lawsuits and one administrative proceeding brought against
 
                                       21
<PAGE>   29
 
them by certain railroad companies seeking damages of over $200,000,000 for
alleged defects in concrete railroad cross-ties manufactured and/or sold by the
Debtors between 1983 and 1989.
 
     Furthermore, as of the Filing Date, the Debtors were subject to a number of
pending proceedings involving federal and state regulatory agencies relating to
environmental issues and certain of the Debtors had been named as potentially
responsible parties by the United States Environmental Protection Agency (the
"EPA") and other regulatory agencies for the environmental clean-up of certain
sites. With respect to several of these sites, disputes had arisen concerning
the respective liabilities of the Debtors and third parties for clean-up costs
and other environmental enforcement and liability matters. Claims asserted in
connection with these matters had the potential of aggregating tens of millions
of dollars (see pages 47 through 52 of this Disclosure Statement).
 
     In addition, the Debtors have significant contingent liabilities respecting
retiree health, life insurance and other similar benefits. Specifically, the
Debtors have approximately 7,000 participants under approximately forty
different benefit plans, with the present value of liabilities estimated at
approximately $140,000,000 as of January 1, 1992 (see pages 42 through 47 of
this Disclosure Statement).
 
     As a result of the foregoing matters, the Company determined that it was in
its best interests to seek Bankruptcy Court protection to enable the Company to
attempt to achieve a long-term solution to its financial, litigation and
business problems.
 
                           III. THE CHAPTER 11 CASES
 
A.  THE FILING OF THE PETITIONS
 
     On December 10, 1990, the following eleven entities filed voluntary
petitions for reorganization pursuant to Chapter 11 of the Bankruptcy Code:
 
     Lone Star Industries, Inc.
     New York Trap Rock Corporation
     San-Vel Concrete Corporation
     NYTR Transportation Corporation
     Lone Star Cement Inc.
     Construction Materials Company
     I. C. Materials, Inc.
     Lone Star Prestress Concrete, Inc.
     Lone Star Properties, Inc.
     Southern Aggregates, Inc.
     Lone Star Transportation Corporation
 
Thereafter, on December 21, 1990, the following additional entities filed
voluntary Chapter 11 petitions:
 
     Lone Star Building Centers, Inc.
     Lone Star Building Centers (Eastern) Inc.
 
     The Debtors' cases were assigned to the Honorable Howard Schwartzberg,
United States Bankruptcy Judge. The Chapter 11 filings did not apply to the
other members of the Affiliated Companies (including foreign and domestic joint
ventures) which were not materially affected by the financial difficulties being
experienced by the Company prior to the Filing Date.
 
                                       22
<PAGE>   30
 
B.  DESCRIPTION OF DEBTORS
 
     The following is a brief description of each of the Debtors and their
operations as of the Filing Date.
 
     1.   LONE STAR INDUSTRIES, INC.
 
     Lone Star, a Delaware corporation, is the parent company of the Affiliated
Companies. Its business operations include, but are not limited to, operation of
the domestic cement plants and their related terminals and distribution systems,
operation of the ready-mixed concrete and aggregate operations located in
Memphis, Tennessee, and overall administration of the operations of the
Affiliated Companies through the corporate headquarters in Stamford, Connecticut
and certain regional sales and administrative offices located throughout the
United States.
 
     Presently, approximately 3,730 claims have been filed or scheduled against
Lone Star in these bankruptcy cases in an aggregate amount of approximately
$1,733,319,000, plus unliquidated amounts.(13)
 
     2.   NEW YORK TRAP ROCK CORPORATION
 
     New York Trap Rock Corporation ("Trap Rock"), a Delaware corporation, is a
wholly-owned subsidiary of Lone Star whose primary operations include the
manufacture and distribution of crushed stone from quarries located in or near
West Nyack and Clinton Point, New York. Trap Rock is a major supplier of crushed
stone to the metropolitan New York construction market.
 
     Presently, approximately 470 claims have been filed or scheduled against
Trap Rock in these bankruptcy cases in an aggregate amount of approximately
$73,280,000, plus unliquidated amounts.
 
     3.   SAN-VEL CONCRETE CORPORATION
 
     San-Vel, a Kansas corporation and wholly-owned subsidiary of Lone Star, has
operated three primary businesses: (i) the mining of aggregates which are used
in the manufacture of concretes, (ii) the production and delivery of ready-mix
concrete to its customers, and (iii) the design and production of precast,
prestressed concrete structures and products. The aggregates produced by San-Vel
were sold to ready-mix companies, asphalt plants, construction companies and
local municipalities primarily in New England. As set forth more fully below
(see page 33), San-Vel's prestress concrete operations were discontinued prior
to the Filing Date and its aggregates and ready-mix operations were sold in
July, 1992.
 
     Presently, approximately 510 claims have been filed or scheduled against
San-Vel in these bankruptcy cases in an aggregate amount of approximately
$81,367,000, plus unliquidated amounts.
 
     4.   NYTR TRANSPORTATION CORPORATION
 
     NYTR, a Delaware corporation and a wholly-owned subsidiary of Trap Rock,
operates a fleet of approximately 117 barges which deliver crushed stone to
customers of Lone Star in the metropolitan New York area. Presently,
approximately 250 claims have been filed or scheduled against NYTR in these
bankruptcy cases in an aggregate amount of approximately $59,816,000, plus
unliquidated amounts.
 
     5.   LONE STAR CEMENT INC.
 
     Lone Star Cement Inc. ("LSC"), a New Jersey corporation, is a subsidiary of
Lone Star. LSC owns a twenty-five percent interest in Kosmos Cement Company, a
joint venture which produces cement at plants located in Kosmosdale, Kentucky
and Pittsburgh, Pennsylvania. As of the Filing Date, LSC had approximately
$18,872,000 of outstanding long-term debt.
 
     Presently, approximately 310 claims have been filed or scheduled against
LSC in these bankruptcy cases in an aggregate amount of approximately
$69,626,000, plus unliquidated amounts.
 
- ---------------
 
13 Except as otherwise noted, the number and amount of claims filed against Lone
   Star and each of the other debtor entities, as set forth in this Disclosure
   Statement, are inclusive of multi-debtor claims, i.e., claims filed by
   creditors against each of the debtor entities, although only one debtor
   entity may be liable on the claim.
 
                                       23
<PAGE>   31
 
     6.   CONSTRUCTION MATERIALS COMPANY
 
     Construction Materials Company ("Construction Materials"), a Delaware
corporation, is a wholly-owned subsidiary of Lone Star. Construction Materials
operates a ready-mixed concrete and construction aggregates business serving the
greater Peoria, Illinois construction market. Construction Materials owns and
operates three (3) ready-mixed concrete plants and distributes products from
these plants through a fleet of approximately thirty-seven (37) ready mixed
concrete trucks. In addition, Construction Materials owns and operates an
aggregates quarry in Spring Bay, Illinois.
 
     Presently, approximately 330 claims have been filed or scheduled against
Construction Materials in these bankruptcy cases in an aggregate amount of
approximately $59,452,000, plus unliquidated amounts.
 
     7.   I.C. MATERIALS, INC.
 
     I.C. Materials, Inc. ("IC Materials"), an Illinois corporation, is a
wholly-owned subsidiary of Lone Star. IC Materials operates a ready-mixed
cement, concrete block and building material products business serving the
Central and Southern Illinois construction markets. IC Materials owns and
operates three (3) ready-mixed concrete plants, forty-six (46) ready mixed
concrete trucks, two (2) concrete block plants and three (3) construction
material warehouses and outlets.
 
     Presently, approximately 600 claims have been filed or scheduled against IC
Materials in these bankruptcy cases in an aggregate amount of approximately
$59,498,000, plus unliquidated amounts.
 
     8.   LONE STAR PRESTRESS CONCRETE, INC.
 
     Lone Star Prestress Concrete, Inc. ("LSPC"), a Texas corporation, is a
wholly-owned subsidiary of Lone Star which manufactured prestressed concrete
poles from a prestressed plant located in Houston, Texas. The prestressed
concrete poles were sold primarily to electric utility companies in the
Southern, Southeastern and Midwest United States. The prestressed plant was shut
down in April, 1992, and the remaining real property owned by LSPC is in the
process of being sold.
 
     Presently, approximately 310 claims have been filed or scheduled against
LSPC in these bankruptcy cases in an aggregate amount of approximately
$59,216,000, plus unliquidated amounts.
 
     9.   LONE STAR PROPERTIES, INC.
 
     Lone Star Properties, Inc. ("LS Properties"), a Delaware corporation, was
formerly an active real estate development company. At present, LS Properties
holds certain parcels of surplus real estate which are being held for sale.
 
     Presently, approximately 250 claims have been filed or scheduled against LS
Properties in these bankruptcy cases in an aggregate amount of approximately
$59,129,000, plus unliquidated amounts.
 
     10. SOUTHERN AGGREGATES, INC.
 
     Southern Aggregates, Inc. ("Southern Aggregates"), a Mississippi
corporation and a wholly-owned subsidiary of Lone Star, operates a sand and
gravel quarry in Hernando, Mississippi and markets sand and gravel in the
greater Memphis, Tennessee area. Southern Aggregates also supplies sand and
gravel to Memphis Ready-Mix, a division of Lone Star. In March, 1993, the
Debtors, with Bankruptcy Court approval, sold substantially all of Southern
Aggregates' equipment and inventory and, as a result, Southern Aggregates'
operations have been discontinued.
 
     Presently, approximately 290 claims have been filed or scheduled against
Southern Aggregates in these bankruptcy cases in an aggregate amount of
approximately $58,864,000, plus unliquidated amounts.
 
                                       24
<PAGE>   32
 
     11. LONE STAR TRANSPORTATION CORPORATION
 
     Lone Star Transportation Corporation ("LSTC"), a Delaware corporation, is a
wholly-owned subsidiary of Lone Star. LSTC formerly marketed concrete railroad
cross-ties manufactured by San-Vel. As of the Filing Date, LSTC's major asset
consisted of a fifty-percent (50%) ownership interest in LSM Concrete Tie
Company, a joint venture that produces concrete railroad cross-ties in Denver,
Colorado. In January, 1993, LSTC sold its ownership interest in LSM Concrete Tie
Company to ROCLA Concrete Tie, Inc.
 
     Presently, approximately 260 claims have been filed or scheduled against
LSTC in these bankruptcy cases in an aggregate amount of approximately
$70,290,000, plus unliquidated amounts.
 
     12. LONE STAR BUILDING CENTERS, INC.
 
     Lone Star Building Centers, Inc. ("Building Centers") is an inactive
wholly-owned subsidiary of Lone Star which formerly operated a chain of
wholesale and retail home building and home improvement centers in Texas,
Oklahoma, Kansas, Wisconsin, Florida, California and Minnesota. Its subsidiaries
included Lone Star Building Centers (Eastern) Inc. and G. M. Stewart Lumber
Company, Inc. Substantially all of the assets of Building Centers were sold to
several buyers in 1979.
 
     Presently, approximately 250 claims have been filed or scheduled against
Building Centers in these bankruptcy cases in an aggregate amount of
approximately $88,149,000, plus unliquidated amounts.
 
     13. LONE STAR BUILDING CENTERS (EASTERN) INC.
 
     Lone Star Building Centers (Eastern) Inc. ("LSBCE") is an inactive
wholly-owned subsidiary of Building Centers (which, as previously indicated, is
also an inactive corporation). Formerly known as Lindsley Lumber Company, LSBCE
operated wholesale and retail home building and home improvement centers in the
state of Florida. Although LSBCE still owns certain real property, substantially
all of the assets of this company were sold in 1979.
 
     Presently, approximately 260 claims have been filed or scheduled against
LSBCE in these bankruptcy cases in an aggregate amount of approximately
$94,879,000, plus unliquidated amounts.
 
C.  FUNDING OF POST-PETITION OPERATIONS
 
     The Debtors' post-petition operations have been funded entirely from the
continued operation of the Debtors' businesses and from cash on hand as of the
Filing Date. Subsequent to the Filing Date, the Debtors explored the possibility
of obtaining debtor-in-possession financing. However, the Debtors determined
that such financing was not available on acceptable terms and conditions and,
thus, such financing was not in the best interests of the Debtors' estates.
 
     In connection with the funding of their post-petition operations, the
Debtors, after consultation with the Committees, obtained, at various intervals,
the entry of orders (the "Cash Management Orders") authorizing the Debtors to
continue to utilize their pre-petition consolidated cash management system
during the post-petition period (see page 21 of this Disclosure Statement).
 
     Pursuant to the Cash Management Orders, the Debtors were authorized, for
certain specified time periods, to effect inter-company cash transfers (up to
certain specified dollar amounts) among the Debtor entities in order to ensure
that sufficient funds were available to meet the operational needs of the
various Debtor entities. The Cash Management Orders contemplate only upstream
and downstream transfers. That is, pursuant to the Cash Management Orders, funds
may only be transferred from Lone Star to the other Debtor entities or from the
other Debtor entities to Lone Star. In addition, non-Debtors have transferred
funds to
 
                                       25
<PAGE>   33
 
Lone Star, however, no funds are transferred from Debtors to non-Debtor entities
within the Affiliated Companies.(14)
 
     In order to protect the interests of the creditors of the respective
Debtors, the Cash Management Orders provide that all net post-petition advances
from Lone Star to any of the other Debtors and all net post-petition advances
from any of the other Debtors to Lone Star (i) shall have priority over any and
all administrative expenses (incurred by any of the Debtors) of the kind
specified in Sections 503(b) and 507(b) of the Bankruptcy Code, (ii) shall be
secured by duly perfected, non-voidable, first priority liens on and security
interests in all the real and personal property of the Debtor receiving such net
inter-Debtor advances, (iii) shall be subject to valid, non-voidable,
unsubordinated and perfected existing liens and security interests, and (iv)
subject to and subordinate to the amount of compensation allowed by the
Bankruptcy Court under Sections 328, 330 or 331 of the Bankruptcy Code to any
professional person retained by the Debtors or by any official committee
appointed in these Chapter 11 cases. The Debtors anticipate obtaining additional
orders authorizing the continued use of their consolidated cash management
system as may be necessary throughout the remainder of their Chapter 11 cases.
 
     The pattern of funds distributed between Lone Star and the other Debtors
pursuant to the Cash Management System generally follows the seasonality of the
construction industry. Typically, during the winter and early spring months
activity in the construction industry is generally slow, and as a result, so are
revenues from the Debtors' operations. During this period, funds typically flow
down from Lone Star to the other Debtors to finance their production, storage
and maintenance costs and capital expenditures. However, during the summer and
early fall months, when activity in the construction industry is high, revenues
from operations increase and funds from the other Debtors flow up to Lone Star.
Consistent with this pattern, as of June 30, 1993, the net post-petition
advances made by Lone Star to the other Debtors was approximately $875,000.
However, by year-end 1993, it is anticipated that such funds (and any additional
advances after June 30, 1993) will be repaid to Lone Star.
 
D.  OFFICIAL COMMITTEES
 
     1.   APPOINTMENT OF OFFICIAL COMMITTEES
 
     Shortly after the commencement of the Debtors' Chapter 11 cases, on
December 17, 1990, the United States Trustee for the Southern District of New
York (the "United States Trustee")(15) appointed an Official Committee of
Unsecured Creditors (the "Creditors' Committee") pursuant to Section 1102 of the
Bankruptcy Code.(16) Thereafter, on February 12, 1991, the United States Trustee
appointed the Equity Committee.(17)
 
- ---------------
 
14 In specific instances, certain non-Debtor subsidiaries of Lone Star have
   transferred funds to other non-Debtor affiliates. All major transfers of
   funds were discussed with the Committees prior to their effectuation, and
   where appropriate, orders of the Bankruptcy Court were obtained.
 
15 The United States Trustee, which is part of the United States Department of
   Justice, supervises the administration of cases filed under Chapters 7, 9, 11
   and 13 of the Bankruptcy Code. No trustee as defined in Section 1104 of the
   Bankruptcy Code has been appointed to operate the Debtors' businesses nor has
   the appointment of such a trustee been requested.
 
16 The current members of the Creditors' Committee are listed on Exhibit "B"
   annexed hereto. The Creditors' Committee is represented by the law firm of
   Wachtell, Lipton, Rosen & Katz, 299 Park Avenue, New York, New York 10171.
   The accountants for the Creditors' Committee are KPMG Peat Marwick, 345 Park
   Avenue, New York, New York. Additionally, the Creditors' Committee has
   retained D. Taura & Associates, Inc., 90 Montadale Drive, Princeton, New
   Jersey 08540, to provide specific accounting services which are not being
   performed by KPMG Peat Marwick. Smith Barney Upham & Co., Inc., 1345 Avenue
   of the Americas, New York, New York 10105 has also been retained as financial
   advisor to the Creditors' Committee.
 
17 The current members of the Equity Committee are listed on Exhibit "C" annexed
   hereto. The Equity Committee is represented by the law firm of Willkie Farr &
   Gallagher, 153 East 53rd Street, New York, New York 10022. The Argosy Group
   L.P., 1325 Sixth Avenue, New York, New York 10019, has been retained as
   financial advisor to the Equity Committee. In addition, the Equity Committee
   has retained Roy A. Grancher and Richard Entorf as cement industry
   consultants to perform industry specific valuations of the Debtors' assets.
 
                                       26
<PAGE>   34
 
     The Creditors' Committee and the Equity Committee are designed to represent
and protect the interests of their respective constituencies on matters arising
in these Chapter 11 proceedings. As a result, the Committees play a significant
role in the overall administration of these Chapter 11 cases. Throughout these
proceedings, the Debtors have attempted to maintain a constructive dialogue with
each of the committees appointed herein.
 
     In addition to the Creditors' and Equity Committees, the Debtors, by notice
of motion and application, sought and obtained entry of an order (the "Retiree
Order") appointing an official committee of retired employees consisting of both
union and non-union former Lone Star employees. The purpose of a retiree
committee is to act as the authorized representative of a debtor's numerous
retirees with respect to negotiations concerning reductions of a debtor's
retiree benefit obligations.(18) However, while the retiree committee appointed
pursuant to the Retiree Order was in the process of organizing, certain labor
organizations appealed the Retiree Order and obtained a stay of the order
pending such appeal. The unions' appeal asserted, among other things, that only
the unions, and not the committee appointed by the Retiree Order, were
authorized to negotiate with the Debtors with respect to retiree benefits
provided by the collective bargaining agreements.
 
     In July, 1992, in an effort to avoid the delays and uncertainties arising
from such appeal, the parties negotiated a settlement of the issues raised by
the appeal. Pursuant to this settlement, the retiree committee appointed under
the Retiree Order was reconstituted so as to consist of only non-union members
(as reconstituted, the "Retiree Committee").(19) In addition, each union will
independently act as authorized representative of its retired former members.
Subsequently, the Debtors have provided information to the Retiree Committee and
the unions and have met with representatives thereof concerning the extent and
scope of the Debtors' retiree obligations. In November, 1992, the Debtors
distributed a formal proposal to the Retiree Committee and the Unions with
respect to the modification of the Retiree Benefits. Since such time,
counterproposals have been submitted and negotiations have continued (see pages
42 through 47 of this Disclosure Statement).
 
E.  DEBTORS' RETENTION OF PROFESSIONALS
 
     By order dated December 10, 1990, the Bankruptcy Court authorized the
retention of Proskauer Rose Goetz & Mendelsohn ("PRG&M") as bankruptcy and
reorganization counsel to the Debtors. The Bankruptcy Court also authorized the
retention of Coopers & Lybrand (the Debtors' principal independent accountants)
to render necessary accounting, tax, auditing and consulting services in
connection with the Debtors' day-to-day domestic operations. The Debtors were
also authorized to retain the firm of Price Waterhouse to render necessary
accounting, tax, auditing and consulting services in connection with the
Debtors' international divisions, foreign subsidiaries and international joint
ventures. In addition, in October, 1992, the Debtors were authorized to retain
Blackstone as their financial advisor (see pages 70 to 71). Furthermore, on or
about July 15, 1993, the Debtors were authorized to retain SCI as consultants in
order to perform industry specific valuations of the Debtors' assets on a
plant-by-plant basis and to assist with, among other things, preparation of the
Debtors' liquidation analysis.
 
     As is common in large and complex Chapter 11 cases such as these, the
Bankruptcy Court has also authorized the Debtors to retain numerous special
counsel to provide legal support for discrete matters or issues arising under
non-bankruptcy law, or relating to non-bankruptcy pre-petition transactions and
litigations. The Debtors have also employed certain collection agents, real
estate brokers and other professionals consistent with Bankruptcy Court
authorization and ordinary business practices.
 
- ---------------
 
18 Lone Star's retiree benefits are described later in this Disclosure Statement
   in Section III(G).
 
19 The current members of the Retiree Committee are listed on Exhibit "D"
   annexed hereto. The Retiree Committee is represented by the law firm of
   Whitman & Ransom, 200 Park Avenue, New York, New York 10166. Rothschild,
   Inc., 750 Lexington Avenue, New York, New York 10020 has been retained as
   financial advisor to the Retiree Committee. Arthur Andersen & Co., 1345
   Avenue of the Americas, New York, New York 10105 has been retained as
   accountants to the Retiree Committee.
 
                                       27
<PAGE>   35
 
F.  OPERATIONS AS DEBTORS-IN-POSSESSION
 
     Since the Filing Date, the Debtors, pursuant to Sections 1107 and 1108 of
the Bankruptcy Code, have operated their businesses and managed their assets as
debtors-in-possession. As part of the reorganization process, the Debtors have,
among other things, sought rejections and/or modifications of various contracts
and arrangements in order to preserve their estates and protect the interests of
their creditors and stockholders. In addition, since commencing these Chapter 11
cases, the Debtors, with the assistance of their professional advisors, have
embarked upon a program to substantially improve the operating procedures,
controls, efficiency and profitability of their continuing operations.
 
     As part of this program, the Debtors have closed certain facilities and
sold certain assets. Such actions, as more fully described below, were deemed to
be in the best interests of the Debtors, their creditors and their stockholders
and, where appropriate, were approved by the Bankruptcy Court after hearings
held upon appropriate notice to the Committees, the United States Trustee and
other parties-in-interest.
 
     1.   MANAGEMENT OF THE DEBTORS AND RELATED ISSUES
 
     a.   Cahill Investigation
 
     Prior to the Filing Date, allegations of mismanagement and possible
violations of corporate policy at Lone Star were set forth in an article
published in the November 5, 1990 issue of Business Week. The Audit Committee of
Lone Star's Board of Directors, acting on behalf of the Board, determined that
the law firm of Cahill, Gordon & Reindel ("Cahill") should conduct an
investigation into the matters mentioned in the article.
 
     Immediately subsequent to the Filing Date, Mr. James E. Stewart, who had
been Chairman of the Board and Chief Executive Officer of Lone Star since 1973,
took a leave of absence from Lone Star. Mr. David W. Wallace (a member of the
Board of Directors) was appointed as Acting Chairman and Chief Executive
Officer. Thereafter, in January 1991, pursuant to a stipulation approved by the
Bankruptcy Court, Mr. Stewart's employment with Lone Star ended permanently and
Mr. Wallace became Chairman and Chief Executive Officer.
 
     Upon completion of the Cahill investigation,(20) a written report (the
"Cahill Report") was rendered detailing personal travel and entertainment
expenses allegedly charged to Lone Star in violation of company policy by
certain of Lone Star's officers and directors. Specifically, the Cahill Report
alleged (subject to the assumptions and conditions contained therein) that
personal expenses had been charged to Lone Star as follows: (i) Mr. James E.
Stewart (former Chairman and Chief Executive Officer) -- $1,072,564, (ii) Mr.
Sheldon Kaplan (a former outside director) -- $22,068, (iii) Mr. Robert Hutton
(former Vice Chairman and a consultant) -- $136,240, (iv) Mr. Carmine Muratore
(former Executive Vice President - Staff) -- $119,159 and (v) Mr. Rex Cross (a
former Director) -- $66,282. Each of such persons has denied the allegations of
the Cahill Report.
 
     As a result of the Cahill Report, the Debtors obtained Bankruptcy Court
authorization to commence litigation against Mr. Stewart and Mr. Muratore and
continued to evaluate their options as to the other individuals named.
Subsequently, the Debtors entered into settlement agreements with Mr. Stewart
and Mr. Kaplan covering, among other things, the allegations against them
contained in the Cahill Report (see pages 54 through 56 of this Disclosure
Statement). Additionally, pursuant to a settlement concerning, among other
things, the composition of the Debtors' Board of Directors and the voting rights
of the respective classes of Lone Star's common and preferred shareholders, the
Debtors released Mr. Cross from any claims by the Debtors against him, including
those in the Cahill Report (see pages 62 through 63 of this Disclosure
Statement). In addition, the Debtors recently reached an agreement in principle
with Mr. Muratore, subject to Bankruptcy Court approval, regarding the
settlement of claims asserted by and against him (including those set forth in
the Cahill Report), pursuant to which Mr. Muratore is to pay Lone Star $100,000
over a two-year
 
- ---------------
 
20 Pursuant to an order of the Bankruptcy Court, Cahill was retained as special
   counsel to the Debtors in these Chapter 11 proceedings to continue its
   investigation.
 
                                       28
<PAGE>   36
 
period. With respect to Mr. Hutton, who has asserted claims against Lone Star,
the Debtors are considering the appropriate course of action. Prior to the
Effective Date, the Debtors will either reach a settlement with Mr. Hutton with
respect to the allegations of the Cahill Report or commence litigation against
him.
 
     b.   Rejection and/or Termination of Employee-Related Contracts and
Arrangements
 
     Prior to the Filing Date, Lone Star was party to employment agreements, for
terms ranging between two to five years, with fourteen employees whose annual
base salaries under such agreements ranged from $53,000 to $325,000. In the
aggregate, these employment contracts would have cost Lone Star more than
$3,327,000 annually in base salaries, bonuses, perquisites and additional
incentives including termination and severance benefits. Certain of these
employees were party to change of control agreements with Lone Star, which, if
triggered, would have cost Lone Star approximately $2,235,000 in the aggregate.
 
     Additionally, as of the Filing Date, the Debtors were also parties to
various written and oral compensation and/or pension arrangements with numerous
former employees and the Debtors were also paying benefits to approximately
twenty former employees under a Supplementary Retirement Plan for Designated Key
Employees (the "SR Plan"). The SR Plan provided supplemental retirement benefits
over and above those benefits provided under Lone Star's retirement plan for its
salaried employees. The Debtors estimated that the cost of maintaining the SR
Plan was in excess of $300,000 per annum.
 
     Subsequent to the Filing Date, in an effort to reduce and eliminate
unnecessary costs and expenses, the Debtors determined that it would serve the
best interests of their estates to reject all employment agreements and
implement new employment policies and contractual arrangements which were more
consistent with the Debtors' then business and financial circumstances.
Consequently, the Debtors obtained entry of an order of the Bankruptcy Court
authorizing, among other things, the rejection and/or termination of all
employee-related contracts and arrangements (with the exception of
indemnification arrangements). The rejected contracts and arrangements include
employment and severance agreements, consulting arrangements, separation
agreements, deferred compensation agreements, takeover severance agreements and
supplemental benefit arrangements. In addition, the Bankruptcy Court authorized
the rejection and/or termination of the SR Plan. Approximately 35 proofs of
claim have been filed against the Debtors' estates based solely on the rejection
of the SR Plan and specific similar arrangements (not including deferred
compensation arrangements) which the Debtors estimate approximate $2 million
(including estimates for unliquidated amounts). In addition, approximately 30
claims have been filed against the Debtors' estates based on the rejection of
deferred compensation and similar arrangements which the Debtors estimate to be
in the approximate amount of $1.88 million. The Debtors are evaluating both the
SR Plan and deferred compensation related claims and anticipate that on or prior
to Confirmation they will seek to have such claims fixed by the Bankruptcy Court
in the respective amounts set forth above (i.e., $2 million and $1.88 million,
respectively). Such amounts are included in the Debtors' estimates of Allowed
Claims.
 
     c.   Post-Petition Management
 
     As the Chapter 11 proceedings progressed, the Debtors believed that, in
order to avoid a loss of key personnel and a resulting disruption in business
operations, it was essential that the Debtors implement post-petition employment
agreements with certain of the Debtors' senior executives as well as employment
policies respecting key upper and mid-level management.
 
     Accordingly, the Debtors obtained entry of orders (i) approving employment
agreements with David W. Wallace, William M. Troutman and John J. Martin, and
(ii) approving the terms of a separation pay and retention award policy for key
upper and mid-level management.
 
     (1) Mr. David W. Wallace
 
     As stated above, immediately subsequent to the Filing Date, David W.
Wallace became Acting Chairman and Chief Executive Officer of Lone Star.
Thereafter, in January 1991, Mr. Wallace was appointed as Chairman and Chief
Executive Officer and continues to serve the Debtors in these capacities.
 
                                       29
<PAGE>   37
 
     Mr. Wallace has served as a director of Lone Star since 1970. Mr. Wallace
was Chairman of the Board and Chief Executive Officer of Todd Shipyards
Corporation during the pendency of its Chapter 11 case which began in 1987 and
ensued with the approval of a plan of reorganization in late 1990. From 1973 to
1984, Mr. Wallace was the Chairman, President and Chief Executive Officer of
Bangor Punta Corporation. From February 1960 to May 1969, he was the Chairman of
the Executive Committee, Executive Vice President and Chief Operating Officer of
United Brands. From 1954 to 1959, Mr. Wallace was the General Counsel and the
Executive Vice President of Allegheny Corporation. Since 1985, Mr. Wallace has
been Chairman of the Board of FECO Engineered Systems, Inc. Mr. Wallace was also
Chairman of the Board of National Securities and Research Corporation from 1987
to 1993. Mr. Wallace also serves as Chairman of the Executive Committee of the
Board of the Putnam Trust Company, and a director of Zurn Industries, Inc., UMC
Electronics Corporation, and Holmes Protection Company.
 
     As noted above, subsequent to the Filing Date, Mr. Wallace became Acting
Chairman of the Board and Chief Executive Officer. Shortly thereafter, Mr.
Wallace and the Debtors entered into an employment agreement pursuant to which
he was formally appointed Chairman and Chief Executive Officer. This agreement
was approved by the Bankruptcy Court in February, 1991, without objection from
the Creditors' Committee (then the only appointed committee).
 
     Pursuant to this employment agreement, Mr. Wallace received a salary of
$250,000 per annum for the initial term which ended December 31, 1992. Since
such time, the agreement has continued on the same terms and may be terminated
by either party upon six months prior written notice. Pursuant to the
employment agreement, Mr. Wallace is also eligible for an annual bonus to be
determined by the Compensation and Stock Option Committee of Lone Star's Board
of Directors and, to date, no such bonus has been granted. Mr. Wallace was also
granted an option (exercisable by Mr. Wallace, his estate or his heirs) to
purchase 100,000 shares of Lone Star common stock pursuant to Lone Star's 1989
Stock Option Plan at a price of $5 per share. Mr. Wallace also has the right to
apply to the Bankruptcy Court for a success bonus at the conclusion of the
Debtors' Chapter 11 cases. Success bonuses, if any, will only be paid after
approval by Lone Star's Board of Directors and authorization by the Bankruptcy
Court obtained by motion upon appropriate notice and hearing.(21) In addition,
Mr. Wallace retained his rights with respect to his filed claims for (i) $3,000
in unpaid pre-petition directors' fees and (ii) unliquidated amounts for
contingent indemnification rights. Mr. Wallace is also a participant in Lone
Star's retirement plan for outside directors.
 
     (2) Mr. William M. Troutman
 
     Mr. William M. Troutman has served as the President and Chief Operating
Officer of Lone Star since 1986 and became a director of the Debtors in July,
1992.
 
     On the Filing Date, Mr. Troutman was party to a 3 1/2 year employment
contract with Lone Star at a base salary of at least $325,000 per year. Mr.
Troutman's employment contract was rejected by the Debtors with his consent (see
"Rejection and/or Termination of Employee Related Contracts and Arrangements").
In August, 1992, the Bankruptcy Court entered an order approving an employment
contract between Lone Star and Mr. Troutman, pursuant to which Mr. Troutman will
continue to serve in his capacity as President and Chief Operating Officer of
Lone Star for an initial term of two years commencing as of August, 1992. As
compensation Mr. Troutman shall continue to receive his present annual salary of
$325,000 and will be considered for a success bonus at the conclusion of these
Chapter 11 cases. Success bonuses, if any, will only be paid after approval by
Lone Star's Board of Directors and authorization by the Bankruptcy Court
obtained by motion upon appropriate notice and hearing.
 
- ---------------
 
21 While the Debtors presently anticipate that they will seek to propose success
   bonuses for key individuals handling their reorganization efforts, no amounts
   have been determined nor have the debtors discussed such matters with their
   Board of Directors, the individuals involved, or any of the Committees or
   other parties-in-interest. Specific criteria for such bonuses have not yet
   been established but it is anticipated that relevant factors will include
   successful confirmation of a plan with significant recoveries to creditors,
   the lack of raises and bonuses for virtually all elected officers during the
   Chapter 11 proceedings, and individual time and effort devoted to the
   Debtors' reorganization. Authorization to pay any success bonuses would be
   sought upon motion to the Bankruptcy Court (following Board of Director
   approval) filed prior to Confirmation and returnable on or after
   Confirmation.
 
                                       30
<PAGE>   38
 
     Pursuant to his employment contract, upon termination of such agreement
other than for cause or good reason, Mr. Troutman shall be entitled to receive a
severance payment equal to his salary for the period from the effective date of
such termination through the later of (i) the expiration of the initial term of
the employment contract, or (ii) the one year anniversary of the effective date
of such termination. This severance payment shall be in lieu of severance pay
pursuant to any Lone Star policy or other agreement except that Lone Star shall
provide Mr. Troutman, for a specified period not to exceed the period used to
calculate the severance payment set forth above, with life, health and medical
insurance on the same basis as the coverage provided to him immediately prior to
termination.
 
     Mr. Troutman has filed proofs of claim in these proceedings asserting the
following claims: (i) an unsecured claim of $4,770.83 respecting unpaid
pre-petition salary, (ii) contingent and unliquidated claims resulting from the
cancellation of his pre-petition employment and severance agreements, and (iii)
contingent and unliquidated claims for indemnification. Pursuant to the
post-petition employment contract, Mr. Troutman has agreed to waive his right to
assert any claims in Lone Star's Chapter 11 case, including claims arising under
his severance benefit agreement, with the exception of (i) any rights to
indemnification (whether pursuant to an agreement or otherwise), (ii) his claim
of $4,770.83 for unpaid pre-petition salary, and (iii) certain rights of and
benefits to Mr. Troutman and his spouse relating to health benefits.
 
     (3) Mr. John J. Martin
 
     Mr. John J. Martin has been employed by Lone Star since 1979 and currently
serves as Senior Vice President, General Counsel and Secretary.
 
     On the Filing Date Mr. Martin was a party to a 3 year employment contract
with Lone Star at a base salary of at least $245,000 per year. Mr. Martin's
employment contract was rejected by the Debtors with his consent (see "Rejection
and/or Termination of Employee Related Contracts and Arrangements"). In August,
1992, the Bankruptcy Court approved an employment contract between Lone Star and
Mr. Martin, pursuant to which Mr. Martin will continue to serve in his present
capacities for an initial term ending May 1, 1994. As compensation, Mr. Martin
shall continue to receive his present annual salary of $250,000 and will be
considered for a success bonus at the conclusion of these Chapter 11 cases.
Success bonuses, if any, will only be paid after approval by Lone Star's Board
of Directors and authorization by the Bankruptcy Court obtained by motion upon
appropriate notice and hearing.
 
     Pursuant to his employment contract, upon termination of such agreement
other than for cause or good reason, Mr. Martin shall be entitled to receive a
severance payment equal to his salary for the period from the effective date of
such termination through the later of (i) the expiration of the initial term of
the employment contract, or (ii) the one year anniversary of the effective date
of such termination. This severance payment shall be in lieu of severance pay
pursuant to any Lone Star policy or other agreement except that Mr. Martin shall
continue to participate in (i) all life, health and medical insurance maintained
by Lone Star, and (ii) Lone Star's 401(K) savings plan and pension plan for
salaried employees, for a specified period not to exceed the period used to
calculate the severance payment set forth above.
 
     Mr. Martin has filed proofs of claim in these proceedings asserting the
following claims: (i) an unsecured claim of $3,208.33 respecting unpaid
pre-petition salary, (ii) an unsecured claim of $20,000.00 for an unpaid bonus
due under a pre-petition employment agreement, (iii) contingent and unliquidated
claims under certain medical plans and letter agreements, including a severance
benefit agreement, and (iv) claims for retirement benefits due under various
agreements or plans. Pursuant to the employment contract, Mr. Martin has agreed
to waive his right to assert any claims in Lone Star's Chapter 11 case,
including claims arising under his severance benefit agreement, with the
exception of (i) any rights to indemnification (whether pursuant to agreement or
otherwise), (ii) his claim of $3,208.33 for unpaid pre-petition salary, (iii)
rights and benefits pursuant to a certain retiree medical plan, and (iv) his
$20,000.00 unsecured claim for an unpaid bonus.
 
     d.   Separation Pay and Retention Award Plan
 
     The Debtors believed that their Chapter 11 filings and the uncertainties
attendant thereto (including asset sales, plant closings, workforce reductions
and the rejection of all employee-related agreements), created
 
                                       31
<PAGE>   39
 
a high degree of insecurity among their key employees comprising upper and
middle management. These employees are directly responsible for the Debtors'
overall operations, sales and marketing efforts and thus, form the core of the
Debtors' reorganization efforts. Consequently, the Debtors developed a
separation pay and retention award policy (the "Separation Pay Policy") pursuant
to which the Debtors sought to make certain payments to their key employees
which are designed to ensure that these employees remain with the Debtors to
guide their operations through Confirmation and beyond. The Separation Pay
Policy is comprised of two components, a separation pay component and a
retention award component.
 
     Pursuant to the separation pay component, in addition to the Debtors'
standard severance benefits, upon involuntary termination of employment for
reasons other than cause, the Debtors' key employees (with the exception of the
three members of senior management who entered into post-Filing Date employment
agreements) shall receive three months base salary in accordance with payroll
practices applicable to active employees of Lone Star. The separation payments
shall be made for involuntary terminations occurring during the period following
the effectiveness of the Separation Pay Policy and up to the earlier of the one
year anniversary of Confirmation or dismissal of the Debtors' Chapter 11 cases.
Thus, the Debtors' key employees are provided with incentive to remain in the
Debtors' employ during the crucial period immediately prior to Confirmation and
beyond rather than seeking employment elsewhere since, in either case, they will
be provided with sufficient post-employment salary continuation in the event of
their involuntary termination. Pursuant to the retention award component, if an
eligible key employee is an active employee with Lone Star or an affiliate on
the date a plan of reorganization is confirmed, the key employee shall receive,
on the effective date of such plan, a lump sum payment equal to six months of
such employee's base salary.
 
     In September 1992, the Bankruptcy Court entered an order approving the
Separation Pay Policy pursuant to which the Debtors are authorized to make
separation and retention award payments to certain key employees of the Debtors
as designated by a committee appointed by Lone Star's Board of Directors.
Approximately thirty members of the Debtors' upper and middle management (but
not Messrs. Wallace, Troutman or Martin) are participants in these programs. The
aggregate cost of the Separation Pay Policy will be up to $2,400,000, of which
the Debtors estimate approximately $1,800,000 will be for retention awards and
approximately $600,000 will be for supplemental separation payments. As noted
above, the Debtors believe that the payments which they are authorized to make
under the Separation Pay Policy will enable them to retain essential key
employees to guide their operations through Confirmation and beyond.
 
     e.   Resignations and Additions of Officers and Directors
 
     Effective April 15, 1992, Joseph F. Smorada resigned as Senior Vice
President and Chief Financial Officer of Lone Star. Mr. Smorada had been
employed by the Company since September, 1988. Additionally, as described
elsewhere in this Disclosure Statement (see pages 54 through 55), in January,
1991, pursuant to a stipulation approved by the Bankruptcy Court, Mr. James E.
Stewart left his position as Chairman of the Board of Directors and Chief
Executive Officer and retired as a director. In January, 1991, Mr. Sheldon
Kaplan retired from the Board of Directors. In July, 1991, Mr. Robert S. Strauss
retired from the Board of Directors. During 1992, Mr. Willard F. Rockwell, a
director, passed away. At a Board of Directors meeting held on February 10,
1992, Mr. James E. Bacon and Dr. Jack R. Wentworth were elected to the Board. At
a Board of Directors meeting held on July 2, 1992, Mr. William M. Troutman was
elected to the Board. In August, 1993, Mr. Richard J. Neville resigned as Vice
President and Treasurer. Mr. Neville had been employed by the Company since
October, 1986.
 
     In addition, as discussed in Section III(G)(4)(a) of this Disclosure
Statement, in October 1992, the Debtors settled a dispute with various parties
respecting, among other things, the holding of a shareholders' meeting and the
scope of the voting rights of the respective classes of Lone Star's
shareholders. Pursuant to this settlement, certain changes to the Debtors' Board
were effectuated (see pages 62 through 63).
 
     f.   Pre-Confirmation Asset Dispositions
 
     During the post-petition period, the Debtors continued to implement their
pre-petition restructuring program which focused on the reinforcement and
enhancement of their core domestic businesses. In this
 
                                       32
<PAGE>   40
 
respect, either pursuant to specific orders of the Bankruptcy Court or in
accordance with procedures established by the Debtors and approved by the
Bankruptcy Court, the Debtors engaged in a program of disposing of assets which
the Debtors determined were not necessary for their effective reorganization. As
of September, 1993, the Debtors' post-petition asset disposition program has
brought in excess of $155,000,000 into the Debtors' estates. Set forth below is
a summary of the major asset dispositions effectuated by the Debtors since the
Filing Date.
 
     (1) Sale of Stock of Compania Uruguaya de Cemento Portland
 
     In November 1991, pursuant to Bankruptcy Court authorization, Lone Star
sold all of its capital stock in Compania Uruguaya de Cemento Portland (a
Uruguayan corporation engaged in the business of manufacturing cement) to
Cementos Avellaneda, an Argentine corporation, for $4,335,000.
 
     (2) Sale of Certain Real and Personal Property of San-Vel Concrete
Corporation
 
     In June 1992, pursuant to Bankruptcy Court authorization, San-Vel sold
certain of its real and personal property relating to its aggregates and
construction materials business to Aggregate Materials Corporation for
approximately $5,575,000. Pursuant to a Bankruptcy Court approved settlement
with the Massachusetts Bay Transportation Authority (the "MBTA"), approximately
$4,000,000 of the net proceeds from this sale was placed in escrow to satisfy
the MBTA's writs of attachment obtained against certain of San-Vel's real
property in connection with certain litigation respecting concrete railroad ties
(see Section III(G)(3)(a) of this Disclosure Statement). The net proceeds
realized by the Debtors' estates, after satisfaction of the MBTA's writs, was
approximately $1,575,000.
 
     In addition, in August, 1993, San-Vel entered into a contract with MDSX,
Inc. (an entity related to Aggregate Materials Corporation) pursuant to which
MDSX, Inc. has agreed to purchase the remaining portion of San-Vel's prestress
concrete plant (and approximately 190 acres of land upon which the plant is
located) in Littleton, Massachusetts for a cash price of $1,265,000 and
assumption of all environmental liabilities. The Debtors expect to consummate
this sale by the end of 1993 in accordance with administrative procedures orders
described below.
 
     (3) Sale of Stock of Compania Argentina de Cemento Portland
 
     In August 1992, pursuant to Bankruptcy Court authorization, Lone Star sold
all of its capital stock of its wholly-owned Argentine subsidiary, Compania
Argentina de Cemento Portland S.A. ("CACP"), to Loma Negra Industrial Argentina
S.A. ("Loma Negra"), an Argentine corporation, for $38,000,000. CACP's assets
consist of (i) a 50% ownership interest in the capital stock of Cemento San
Martin S.A. ("CSM"), an Argentine cement producer, and (ii) a 96.7% ownership
interest in the outstanding capital stock of Canteras de Riachuelo S.A.
("Riachuelo"), a crushed stone producer located near Colonia, Uruguay.
 
     Subsequent to such sale, the Debtors became aware of facts which they
believed indicated that Loma Negra, another bidder and others had engaged in
collusive bidding for the CACP stock. Consequently, in November, 1992, Lone Star
commenced a lawsuit against these parties in the Bankruptcy Court asserting
substantial compensatory and punitive damage claims arising out of such
collusive conduct. On June 7, 1993, the Bankruptcy Court rendered a written
decision in favor of the defendants. Lone Star has appealed this decision to the
United States District Court for the Southern District of New York (see pages 64
through 65 of this Disclosure Statement for a more complete description of this
lawsuit).
 
     (4) Sale of Promissory Note Issued by Sunbelt Corporation
 
     In October 1991, pursuant to Bankruptcy Court authorization, Lone Star sold
a $20,000,000 promissory note executed by Sunbelt Corporation ("Sunbelt") (and
guaranteed by Sunbelt's parent, Cemex, S.A.) in connection with Sunbelt's
purchase of Lone Star's interest in an entity known as Pacific Coast Cement
Corporation. Lone Star received $17,625,000 from the sale of this note.
 
                                       33
<PAGE>   41
 
     (5) Sale of Certain Barges and Dredges
 
     As of the Filing Date, Lone Star and Onoda Northwest, Inc. ("Onoda") were
partners in Lone Star Northwest ("Northwest"), a general partnership formed
under the laws of the State of Washington. As of the Filing Date, Lone Star
owned certain tugs and barges (the "Barges") which were used by Northwest
pursuant to a Contract of Private Carriage (the "Northwest Contract"). In
addition, as of the Filing Date, Lone Star owned certain dredges (the
"Dredges"), each of which was the subject of a Dredging Agreement between Lone
Star and Northwest (collectively, the "Dredging Agreements") pursuant to which
Lone Star agreed to use the Dredges to dredge sand and aggregates for Northwest.
 
     Lone Star and Northwest also executed an option to purchase (the "Option")
which provided that Northwest could, at its option, purchase the Barges and the
Dredges from Lone Star for approximately $4,000,000. Thereafter, as part of a
complex transaction to dissolve Northwest and restructure it as a corporation,
Northwest informed Lone Star of its intent to exercise the Option. In March
1991, pursuant to Bankruptcy Court authorization, the Barges and Dredges were
sold to Northwest for $3,977,000.
 
     In addition, subsequent to such sale, a dispute arose between Lone Star,
Northwest and Onoda in connection with, among other things, the restructuring of
Northwest as a corporation and Lone Star's purchase of cement from a third
party. Thereafter, Northwest and Onoda commenced arbitration proceedings against
Lone Star. The parties reached a settlement of this arbitration (which was
approved by the Bankruptcy Court) which provided for, among other things,
Northwest's and Onoda's payment of $1,000,000 to Lone Star and the parties'
release of claims against one another.
 
     (6) Sale of Assets Located in Bonner Springs, Kansas
 
     In May 1993, pursuant to Bankruptcy Court authorization, Lone Star sold its
quarry and certain portions of its cement plant located in Bonner Springs,
Kansas to Deffenbaugh Industries, Inc. for approximately $6,250,000. Lone Star
retained the land and buildings necessary to continue operating the Kansas Plant
as a cement distribution terminal and a clinker grinding facility.
 
     (7) Sale of Stock of Companhia Nacional de Cimento Portland
 
     In September 1993, pursuant to Bankruptcy Court authorization, Lone Star
sold its 49.6% interest in the outstanding capital stock of Companhia Nacional
de Cimento Portland S.A. ("CNCP"), to Cemland Investment A.G. (a wholly-owned
subsidiary of Lafarge Coppee ("Lafarge"), a French societe anonyme) for
$69,629,130.73. CNCP, which was engaged in the manufacture and sale of Portland
cement in Brazil, was a corporate joint venture between Lone Star and Lafarge.
Prior to its purchase of Lone Star's interest in CNCP, Lafarge owned 49.9% of
CNCP's outstanding capital stock with the remaining nominal amount of shares
owned by a certain Lafarge subsidiary and by members of CNCP's board of
directors.
 
     (8) Miscellaneous Asset Sales Pursuant to Administrative Order of the
Bankruptcy Court
 
     During the course of these Chapter 11 cases, the Debtors recognized that in
light of the vast number of assets contained within their estates, it would be
uneconomical and administratively burdensome for the Debtors to seek Bankruptcy
Court approval for each and every proposed asset sale regardless of how minor
the value of such assets might be. Accordingly, during the initial phase of
these cases, the Debtors obtained entry of an order (as amended, the
"Administrative Procedures Order") which established an orderly and efficient
procedure respecting such "minor" asset sales.
 
     The Administrative Procedures Order, among other things, allows the Debtors
to sell or otherwise dispose of real or personal property without a further
order of the Bankruptcy Court where the gross sales price is between $300,000
and $3,000,000, so long as the Debtors have provided the Committees with ten
days written notice of such sales and have not received objections thereto
within such period. Where the gross sales price is below $300,000, the Debtors
are authorized to sell property in the "ordinary course."
 
                                       34
<PAGE>   42
 
     Since the Filing Date, the Debtors have received several million dollars
from asset sales consummated in accordance with the Administrative Procedures
Order. The following are certain of the assets which the Debtors have sold in
accordance with the Administrative Procedures Order:
 
     -  PBI Plastibeton Inc. (a Canadian non-Debtor subsidiary) and a mortgage
       held by Lone Star on a facility owned by PBI were sold for $2,600,000 in
       November, 1991.
 
     -  Machinery and equipment relating to San-Vel's prestress concrete
       operations were sold in December, 1991 for $460,000.
 
     -  Equipment and inventory of the Lone Star Construction Products division
       in Nashville, Tennessee, were sold for $503,000 in January, 1992.
 
     -  A corporate airplane was sold for $2,943,875 during 1991.
 
     -  The Debtors' 50% ownership interest in LSM Concrete Tie Company was sold
       in January, 1993 for approximately $2,202,000.
 
     -  Certain equipment and inventory of Southern Aggregates was sold in
       March, 1993 for approximately $721,000.
 
     -  Equipment and inventory of LSPC were sold for $268,000 during 1992 and
       real estate of LSPC will be sold in 1993 for $500,000.
 
     -  Various parcels of surplus real estate were sold for an aggregate amount
       of approximately $5,000,000.
 
     In addition to these sales, the Debtors have numerous miscellaneous parcels
of surplus real property which they will attempt to sell prior to Confirmation
in accordance to the terms of the Administrative Procedures Order. However, as
noted above, in the event such sales are not consummated before Confirmation,
the Debtors' interests in such real property will be transferred to NewCo to be
sold following Confirmation.
 
     g.   Reduction of Expenses and Rejection or Modification of Contracts and
Leases
 
     Since the Filing Date, the Debtors have taken a variety of steps to reduce
costs and eliminate unnecessary expenses. As part of such efforts, the Debtors
have obtained numerous orders of the Bankruptcy Court authorizing the rejection
of various executory contracts and unexpired leases which the Debtors determined
were either unnecessary for their effective reorganization or required excessive
and prohibitive costs. The Debtors have also obtained Bankruptcy Court approval
of various modifications and amendments to certain executory contracts and/or
unexpired leases where such action was determined to be economical and in the
best interests of the Debtors' estates. Set forth below is a summary of some of
the more significant orders obtained by the Debtors in furtherance of their cost
reduction efforts.
 
     - Closing of the Houston Office:  Among the major cost reduction steps
taken by the Debtors was the closing of an office in Houston, Texas (where the
Debtors' Management Information Systems Department was maintained) and
consolidation of these operations with those maintained at the Debtors'
corporate headquarters in Stamford, Connecticut. The Bankruptcy Court authorized
the Debtors' rejection of this lease which resulted in an immediate savings of
approximately $643,000 in remaining rental payments.
 
     - Reduction of Indianapolis Office Space and Renegotiation of Lease
Terms:  As of the Filing Date, Lone Star leased 13,494 square feet of space in a
building located in Indianapolis, Indiana pursuant to a commercial lease
agreement (the "Indianapolis Lease") with Fortune Park Associates Building 10
Limited Partnership. Subsequent to the Filing Date, the Debtors negotiated an
amendment to the Indianapolis Lease pursuant to which the amount of space leased
by the Debtors was significantly reduced resulting in a reduction of rent by
over $348,000. Pursuant to Bankruptcy Court authorization, the Debtors assumed
the Indianapolis Lease as amended.
 
     - Renegotiation of Stamford Office Lease:  As of the Filing Date, Lone Star
leased, as its corporate headquarters, 37,276 square feet of office space at 300
First Stamford Place in Stamford, Connecticut
 
                                       35
<PAGE>   43
 
pursuant to a commercial lease agreement (the "Headquarters Lease") with First
Stamford Place Company ("First Stamford").
 
     Subsequent to the Filing Date, Lone Star negotiated an amendment to the
Headquarters Lease pursuant to which its aggregate fixed rent payable during the
term of the Headquarters Lease (which expires in 1999) was reduced by
approximately $825,000. Pursuant to Bankruptcy Court authorization, the Debtors
assumed the Headquarters Lease as amended.
 
     - Closing of Certain Unprofitable Operations:  In addition to the
foregoing, the Debtors shut down the pre-stressed concrete operations of San-Vel
and LSPC which had been unprofitable.
 
     - Savings in Connection With Waste Fuel Disposal:  Like many other cement
producers, Lone Star has implemented a program of burning waste fuels at its
cement plants in Greencastle, Indiana, and Cape Girardeau, Missouri. Waste fuels
are produced from combinations of excess materials produced in a variety of
industries such as the paints, automotive, ink and plastics industries. The
burning of waste fuel benefits Lone Star due to (i) substantial savings
resulting from decreased use of purchased coal in its cement manufacturing
process, and (ii) substantial fees received from generators of waste fuel
materials who are prohibited from disposing of such waste by conventional means.
Although the Debtors anticipate that the burning of waste fuels will continue to
result in savings and benefits, changes in the environmental regulations,
including their interpretation and enforcement by various federal and state
environmental agencies, applicable to the use of such fuels, could prohibit
their use or make their use uneconomic. (See page 52 for a discussion of recent
action taken by the EPA respecting the burning of waste fuels at Lone Star's
Greencastle cement plant.)
 
     Prior to the Filing Date, in connection with the burning of waste fuels at
the Greencastle cement plant, Lone Star and Systech Environmental Corporation
("Systech") entered into an agreement for the purchase and supply of waste fuel
for use at the Greencastle plant. Pursuant to this agreement, Systech agreed to,
among other things, supply certain waste fuel to Lone Star (as requested from
time to time) and to operate an extensive storage system with respect to the
waste fuel supplied to Lone Star. As compensation, Systech, among other things,
(i) received payments from Lone Star equal to fifty percent (50%) of Lone Star's
savings on coal purchases resulting from the substitution of waste fuels for
coal, and (ii) shared fifty percent (50%) of the revenue received by Lone Star
from the generators of waste materials.
 
     Subsequent to the Filing Date, the Debtors evaluated this agreement and
determined that, due to certain onerous terms including certain right of first
refusal provisions and provisions relating to Systech's fees, Lone Star's
continued performance thereunder was not in the best interests of its estates.
Thereafter, the Debtors and Systech entered into negotiations which resulted in
the execution of an amended agreement, subject to Bankruptcy Court approval.
Pursuant to an order entered in November, 1992, the amended agreement was
approved by the Bankruptcy Court and the Debtors were authorized to assume such
agreement.
 
     The amended agreement is beneficial to the Debtors inasmuch as it provides
for substantial savings and other benefits with respect to the purchase and
supply of waste fuel. Specifically, the amended agreement eliminates Systech's
right to share in Lone Star's savings from decreased coal consumption, which
should amount to a savings of over $600,000 per year. In addition, the amended
agreement eliminates certain rights of first refusal granted to Systech which
Lone Star believes may, on several occasions, have prevented it from obtaining
favorable contracts with other waste fuel suppliers at Lone Star's other cement
plants.
 
     - Reductions of MDFC Equipment Rent:  Prior to the Filing Date, Lone Star
and MDFC Equipment Leasing Corp. ("MDFC") entered into a certain lease agreement
dated as of December 31, 1984, pursuant to which Lone Star agreed to lease from
MDFC, from time to time, certain items of equipment, including front-end loaders
and haul trucks, together with attachments, additions, components, parts and
accessions. Thereafter, Lone Star sublet numerous items of the equipment to
Tarmac Mid-Atlantic, Inc. ("Tarmac") and RMC. As a result of the equipment
leased from MDFC, Lone Star only had use and possession of thirteen front-end
loaders and/or haul trucks (the "Lone Star Equipment").
 
     Pursuant to the terms of the MDFC equipment lease, by April 1, 1992, Lone
Star was scheduled to make quarterly rental payments to MDFC in the approximate
amount of $155,000 and was required to pay certain property taxes. Of this
amount, approximately $72,000 was attributable to the Lone Star Equipment. Lone
 
                                       36
<PAGE>   44
 
Star passed those rent obligations and taxes relating to the subleased equipment
through to Tarmac and RMC; in essence, Lone Star acted as a middleman with
respect to these parties. As of April 1, 1992, Lone Star was indebted to MDFC
for scheduled rent in the approximate amount of $1,330,563.
 
     In an effort to resolve claims regarding Lone Star's non-payment of rent
and certain controversies respecting the return condition of items of the
equipment and to permanently settle and discharge the parties' obligations under
the equipment lease and subleases, Lone Star, MDFC, RMC and Tarmac commenced
negotiations. As a result, on or about July 17, 1992, the parties entered into a
settlement agreement which was approved by the Bankruptcy Court on or about
September 18, 1992.
 
     Pursuant to this settlement agreement, with respect to the Lone Star
Equipment, MDFC, among other things, (i) released Lone Star from payment of any
pre-petition rent and property tax obligations in the approximate amount of
$104,164.81; (ii) cut off post-petition rent as of March 1, 1992 and April 1,
1992, which resulted in administrative expense savings of $62,000; (iii)
released Lone Star from payment of post-petition rent in the approximate amount
of $770,000 representing (a) the lease of the Lone Star Equipment after the cut
off dates and/or after certain items of equipment had come off the Lease, (b)
deferred maintenance costs and (c) the casualty value for the loss of an
equipment unit; (iv) allowed Lone Star to purchase the Lone Star Equipment at a
savings of approximately $100,000; and (v) with respect to the subleased
equipment, released Lone Star, Tarmac and RMC in connection with certain unpaid
pre-petition rent obligations.
 
     - Other Savings:  In addition to the foregoing, the Debtors have obtained
numerous orders of the Bankruptcy Court authorizing the rejection of executory
contracts and unexpired leases or the modification and amendment of such
contracts and leases. As noted above, the Debtors negotiated an amendment to a
bareboat charter which, among other things, reduced interest payable on the
Citicorp Note, which in turn reduced the Debtors' payments under such Charter.
In this regard, the Debtors have been authorized to reject and/or modify and
amend unexpired car leases, computer equipment leases, certain real property
leases and other equipment leases, resulting in substantial savings to the
Debtors' estates.
 
G.  CLAIMS AGAINST THE DEBTORS' ESTATES AND OTHER LIABILITIES
 
     1.   GENERAL
 
     Before the Debtors could begin their efforts to promulgate the Plan, the
Debtors needed to determine the extent of their pre-petition liabilities.
Consequently, subsequent to the Filing Date, the Debtors obtained entry of an
order (the "Claims Bar Order") which, among other things, fixed October 15, 1991
as the deadline for the filing of proofs of claim against the Debtors' estates
(the "Bar Date"), except for those entities whose deadline for filing claims
against the Debtors was or would be fixed pursuant to other orders of the
Bankruptcy Court. In accordance with the Claims Bar Order, the Debtors sent out
tens of thousands of Bar Date notices to the Debtors' creditors and other
parties-in-interest. In response, the Debtors received approximately 5,454
proofs of claim. Additionally, the Debtors originally scheduled approximately
2,350 claims. In all, filed and scheduled claims against the Debtors' estates
aggregated approximately $2,500,000,000, plus unliquidated amounts.
 
     The Debtors completed a review and analysis of substantially all filed and
scheduled claims asserted against the Debtors' estates, and all claims were
entered onto a computer data base. During the course of these bankruptcy cases,
the Debtors objected to numerous claims for various reasons, including that such
claims were excessive, duplicative, amended, filed after the Bar Date, or
improperly classified or prioritized. The Debtors are continuing to object to
these claims, and, under the Plan, the Debtors retain the right to object to
additional claims after Confirmation of the Plan.
 
     2.   CLAIM OBJECTIONS
 
     As noted above, the Debtors concluded that, for a variety of reasons, a
large portion of the claims filed against their estates were improper and should
be objected to. Consequently, the Debtors prepared and filed numerous omnibus
claim objection motions seeking the expungement, reduction or reclassification,
as the case
 
                                       37
<PAGE>   45
 
may be, of various filed and scheduled claims. Specifically, from January 10,
1992 through October 15, 1993, numerous orders were entered by the Bankruptcy
Court with respect to the Debtors' omnibus objections and individual objections
pursuant to which, among other things, (i) approximately 2,500 claims were
expunged or reduced in an aggregate amount of approximately $1,037,769,000 plus
unliquidated amounts, and (ii) 105 claims in an aggregate amount of
approximately $24,683,000 were estimated at zero dollars.
 
     Presently, total allowed and unresolved claims against the Debtors'
estates had been reduced to approximately $634,041,000 plus unliquidated
amounts. As of the date hereof, the Debtors estimate that, upon final
resolution of all Disputed Claims, the total amount of Allowed Claims against
their estates should be approximately $579,807,000 including approximately
$1,422,000(22) in principal amount of Secured Claims (including Secured Tax
Claims), $6,885,000 in Priority and Administrative Claims and $571,500,000 of
Unsecured Claims. The Debtors' estimates of the amounts of Allowed Claims in
each class are based upon the present state of their claim objections and their
analysis of the likely exposure with respect to remaining unresolved claims,
taking into account the current status of negotiations concerning such claims.
 
     3.   SUMMARY OF MAJOR CLAIMS
 
     a.   Litigation and Settlement of Cross-Tie and Related Claims
 
     Prior to the Filing Date, lawsuits were commenced by five railroads
(collectively, the "Railroads"), against Lone Star, LSTC and San-Vel
(collectively, the "Lone Star Group") seeking in excess of $200,000,000 for
damages allegedly resulting from the alleged premature deterioration of concrete
railroad cross ties manufactured by the Debtors and sold to the Railroads
between 1983 and 1988 (the "Cross Tie Litigation"). In connection with their
claims asserted in the Cross Tie Litigation, the Railroads filed proofs of claim
in these bankruptcy cases aggregating in excess of $200,000,000. On June 13,
1991, the Bankruptcy Court lifted the automatic stay, on consent of all parties,
in order to allow the Cross Tie Litigation to proceed to judgment.
 
     After an extensive technical investigation, the Lone Star Group determined
that the primary cause of the premature deterioration of the cross ties was
defective cement supplied to San-Vel by a subsidiary of Lafarge Corporation
("Lafarge Corp."). Accordingly, Lone Star filed third party complaints against
Lafarge Corp. in the plenary actions commenced by the Railroads, seeking full
indemnification from LaFarge Corp. for damages due to the claims of the
Railroads, and damages in excess of $25,000,000 for the destruction of San-Vel's
business operations.
 
     After extensive pre-trial discovery, settlement discussions with the
Railroads were commenced in December, 1991. Subsequently, on September 30, 1992,
and thereafter, Lone Star entered into settlement agreements (the "Cross Tie
Settlement Agreements") with each of the Railroads, subject to Bankruptcy Court
approval.
 
     The Cross Tie Settlement Agreements provide, among other things, for the
Railroad's release of all claims against Lone Star relating to the Cross Tie
Litigation. In exchange, the Debtors (i) made a $5,000,000 cash payment to the
National Railroad Passenger Corporation ("Amtrak"), (ii) made a $4,427,868 cash
payment to the Massachusetts Bay Transportation Authority (the "MBTA"), and
(iii) allowed, in these bankruptcy cases, general unsecured claims in favor of
the settling defendants, against Lone Star only, in an aggregate amount of
$57,200,000.
 
     In addition, the Cross Tie Settlement Agreements provide that, at the
election of Amtrak, Lone Star shall pay to Amtrak 10% of any and all sums that
Lone Star may recover from Lafarge Corp. or from any of Lafarge Corp.'s insurers
(whether by judgment, settlement or otherwise) in connection with any or all of
Lone Star's third party claims against Lafarge Corp. which payments, in the
aggregate, shall not exceed $1,500,000 and shall reduce, dollar for dollar, the
amount of Amtrak's claim allowed against Lone Star pursuant to the Cross Tie
Settlement Agreements.
 
- ---------------
 
22 Excludes approximately $22,593,000 of obligations which are to be assumed by
   Reorganized Lone Star primarily relating to the production payment (see pages
   18 to 20) and a promissory note issued by the Debtors in favor of Dr. Richard
   C. Schaffer (see pages 85 through 86).
 
                                       38
<PAGE>   46
 
     The Debtors believe that the Cross Tie Settlement Agreements were a
reasonable alternative to the high cost of litigation and an uncertain outcome.
Pursuant to the terms of the Cross Tie Settlement Agreements, in exchange for
releases, the Debtors were able to substantially reduce the claims of the
Railroads to $57,200,000, and were required to make cash payments in an
aggregate amount of only approximately $9,430,000. The Cross Tie Settlement
Agreements were approved by the Bankruptcy Court pursuant to orders entered in
October and November, 1992.
 
     The Cross Tie Settlement Agreements did not resolve the Cross Tie
Litigation as it pertained to Lafarge Corp., and a trial with respect to the
claims asserted by Lone Star against Lafarge Corp. was held in late 1992. On
December 16, 1992, the jury returned a verdict in favor of Lone Star finding
that Lone Star had proven its claim of fraudulent misrepresentation, breach of
express warranty, breach of implied warranty of fitness for a particular purpose
and negligence. However, Lone Star's recovery was limited to $1,213,000 because
the District Court, over Lone Star's objection, instructed the jury that Lone
Star could not recover the balance of the damages it sought (approximately
$83,000,000) unless Lone Star had proved a special relationship with Lafarge
Corp. and was not found to be negligent to any degree.
 
     Thereafter, Lone Star filed a motion with the District Court seeking a new
trial, asserting, among other things, that the District Court's jury charge
improperly prevented the jury from awarding full consequential damages on Lone
Star's fraud, breach of warranty and negligence claims. In addition, Lone Star
asserted that because its claims were based on Lafarge Corp.'s commission of an
intentional tort and other grounds including contract and economic loss, any
liability based on an indemnitor/indemnitee relationship should not be vitiated
by the purported negligence of Lone Star. Lafarge Corp. also moved for judgment
as a matter of law or, in the alternative, a new trial.
 
     A hearing to consider both Lone Star's and Lafarge Corp.'s motions was held
on March 5, 1993, following which the District Court issued a written decision
denying both Lone Star's and Lafarge Corp.'s motions. Both Lone Star and Lafarge
Corp. have appealed this decision to the United States Court of Appeals for the
Fourth Circuit.
 
     Lone Star's appeal addresses the following major issues: (i) whether the
District Court erred in refusing to allow the jury to consider Lone Star's
settlement costs (approximately $67 million) and litigation expenses
(approximately $16 million) in the railroad litigation as part of its
consequential damages on its breach of warranty, fraud and negligence claims
against Lafarge Corp.; (ii) whether the District Court erred in finding that
Lone Star waived its right to pursue settlement costs and litigation expenses in
the railroad litigation as part of its consequential damages on its breach of
warranty, fraud and negligence claims against Lafarge Corp.; (iii) whether the
District Court erred in denying Lone Star leave to amend its third-party
complaint seventeen months prior to trial and more than one year prior to the
close of discovery; and (iv) whether the District Court erred in withdrawing
from the jury's consideration the evidence as to Lone Star's claims to asset
write offs and future lost profits against Lafarge Corp. Lafarge Corp. has
appealed the jury's liability verdict.
 
     Both Lone Star and Lafarge Corp. have submitted briefs and oral argument is
scheduled for early December, 1993. To date, there have been no settlement
discussions between the parties since the appeals were filed. If Lone Star's
appeal is successful, Lone Star has requested that a new trial on damages only
(not Lafarge Corp.'s liability) be ordered.(23)
 
     b.   Claims By and Against Liberty Mutual Insurance Company/Settlement With
Liberty Mutual
 
     In connection with the Cross Tie Litigation, prior to the Filing Date, the
Debtors commenced a civil action (the "Insurance Litigation") against Liberty
Mutual Insurance Company ("Liberty Mutual") and various other insurance
companies in the Superior Court of the State of Delaware (the "Delaware Court").
The Insurance Litigation sought, among other things, a declaratory judgment that
Liberty Mutual was obligated to pay the Debtors' reasonable attorneys' fees,
costs and expenses in connection with the Cross Tie
 
- ---------------
 
23 In the event that the Debtors are ultimately successful in this action, any
   recoveries would be paid to NewCo to be used to satisfy the Asset Proceeds
   Notes. If additional funds remain after satisfaction of the Notes, such
   amount will be dividended to Reorganized Lone Star.
 
                                       39
<PAGE>   47
 
Litigation (the "Defense Costs") in accordance with the primary general
liability insurance policies sold by Liberty Mutual to Lone Star. Subsequent to
its examination of the issues, Liberty Mutual acknowledged the existence of a
duty to reimburse the Debtors for their reasonable Defense Costs. Liberty Mutual
maintained, however, that Lone Star's choice of counsel and the fees charged by
such counsel were not reasonable.
 
     Prior to the Filing Date, the Delaware Court entered an order finding that
Liberty Mutual was required to defend the Debtors' interests in the Cross Tie
Litigation and to pay the fees and expenses incurred for the "reasonable"
services of attorneys and consultants. In addition, the Delaware Court capped
the hourly fee of such "reasonable" legal services (the "Fee Cap") and scheduled
a hearing to determine the reasonableness of the legal services performed.
 
     In order to avoid the costs and uncertainty associated with a hearing on
the reasonableness of the legal services, the Debtors and Liberty Mutual
commenced negotiations to settle the issue. The aggregate amount of Defense
Costs incurred by the Debtors in connection with the Cross Tie Litigation, as of
the Filing Date, amounted to approximately $8,934,114. Of this amount,
$6,865,002 had been paid by Lone Star (the "Paid PrePetition Defense Costs").
Pursuant to negotiations, Lone Star and Liberty Mutual agreed that certain
services performed by Rogers & Wells did not relate directly to Lone Star's
defense of the Cross Tie Litigation and, therefore, the cost of such services
should not be included as reimbursable Defense Costs (the "Reduction"). After
application of the Fee Cap, the Reduction, and certain payments made by Liberty
Mutual, the amount of Paid Pre-Petition Defense Costs amounted to $3,505,522
(the "Adjusted and Paid Pre-Petition Defense Costs"). Proofs of Claim were filed
in the Debtors' Chapter 11 cases by Rogers & Wells and various other counsel and
consultants for the unpaid Pre-Petition Defense Costs in an aggregate amount of
$2,069,112.
 
     As of July 31, 1991, the aggregate amount of postpetition Defense Costs
incurred by Lone Star was approximately $2,622,690 of which approximately
$2,131,197 had been approved by the Bankruptcy Court and paid by Lone Star (the
"Paid Post-Petition Defense Costs"). After application of the Fee Cap and
Reduction, the amount of Paid Post-Petition Defense Costs is approximately
$1,308,280 (the "Adjusted and Paid Post-Petition Defense Costs"). There is
currently $590,560 in Post-Petition Defense Costs that have not been approved
for payment by the Bankruptcy Court and, thus, have not been paid by Lone Star
(the "Post-Petition Non-Approved Defense Costs").
 
     On August 18, 1992, after extensive negotiations, Lone Star and Liberty
Mutual entered into a settlement agreement, subject to Bankruptcy Court
Approval, reconciling the extent to which the Cross Tie Litigation Defense Costs
would be reimbursable (the "Liberty Mutual Settlement"). The Liberty Mutual
Settlement provided, among other things, that reimbursable Cross Tie Litigation
Defense Costs would consist of the Adjusted and Paid Pre-Petition Defense Costs
($3,505,522), and 76% of the allowed pre-petition bankruptcy claims of Rogers &
Wells and certain other law firms and consultants ($1,620,811, if the bankruptcy
claims are allowed in full). Assuming that all of the pre-petition bankruptcy
claims are allowed in full by the Bankruptcy Court, the total amount of
reimbursable Pre-Petition Cross Tie Litigation Defense Costs shall equal
approximately $5,126,330 (the "Reimbursable Pre-Petition Defense Costs").
 
     Pursuant to the Liberty Mutual Settlement, the Reimbursable Pre-Petition
Defense Costs will be set-off against or reduced by the general unsecured proof
of claim filed by Liberty Mutual in the amount of $10,299,840.89 plus
unliquidated amounts, against the estate of each of the Debtor entities herein
(the "Liberty Mutual Claim").(24) The amount of any Reimbursable Pre-Petition
Defense Costs remaining after the Liberty Mutual Claim is reduced to zero shall
be paid, in cash, to Lone Star.
 
     In addition, pursuant to the Liberty Mutual Settlement, reimbursable
Defense Costs shall also consist of the Adjusted and Paid Post-Petition Defense
Costs ($1,308,280), and 76% of the Post-Petition Non-
 
- ---------------
 
24 The Liberty Mutual Claim is based on (i) alleged unpaid premiums and
   deductible reimbursements pursuant to the various insurance policies issued
   by Liberty Mutual on behalf of the Debtors, and (ii) fees and expenses
   allegedly owed by the Debtors to Helmsman Management Services Inc., an
   affiliate of Liberty Mutual, for services performed with respect to the
   administration of workers compensation claims. In addition, the parties are
   negotiating the amount of a portion of Liberty Mutual's claims based on
   retrospective insurance adjustments and a resolution thereof is expected in
   the near future.
 
                                       40
<PAGE>   48
 
Approved Defense Costs incurred through July 31, 1991 and ultimately allowed by
the Bankruptcy Court ($448,825, if such unpaid Post-Petition Non-Approved
Defense Costs are allowed in full). Assuming that the Post-Petition Non-Approved
Defense Costs are allowed in full by the Bankruptcy Court, the total amount of
reimbursable post-petition Cross Tie Litigation Defense Costs through July 31,
1991 is approximately $1,757,105 (the "Reimbursable Post-Petition Defense
Costs").
 
     An order approving the Liberty Mutual Settlement was entered by the
Bankruptcy Court on January 29, 1993. The Debtors believe that the Liberty
Mutual Settlement served the best interests of the Debtors' estates and their
creditors because the Liberty Mutual Settlement (i) provided for a cash payment
to the Debtors' estates, (ii) enabled the Debtors to recoup most of their Cross
Tie Litigation Defense Costs, and (iii) avoided the high cost and uncertainty of
allowing the Delaware Court to decide the issue of "reasonableness."
Additionally, as a result of the Liberty Mutual Settlement, the Liberty Mutual
Claim will be substantially reduced.
 
     The Liberty Mutual Settlement only resolved outstanding issues through July
31, 1991. Accordingly, Liberty Mutual has not made any payments to the Debtors
respecting reimbursement of post-July 31, 1991 Defense Costs. However, the
parties have been negotiating and are close to a resolution of the coverage
issues for this period. The total Defense Costs incurred by Lone Star during the
post-July 31, 1991 period is approximately $18,188,000, of which approximately
$12,160,000 has been paid by the Debtors and approved by the Bankruptcy Court
(where applicable). The Debtors anticipate that a settlement respecting Liberty
Mutual's obligation to reimburse Lone Star for these post-July 31, 1991 Defense
Costs will be reached and submitted to the Bankruptcy Court for approval prior
to the Effective Date.
 
     The Insurance Litigation also sought a declaratory judgment that Liberty
Mutual and the other insurance companies(25) were obligated to fully defend and
indemnify the Debtors for the full damages assessed against them (or paid by the
Debtors) in the Cross Tie Litigation in accordance with the respective insurance
policy limits. The insurance companies disclaim liability for all amounts
sought. The insurance companies' defense is based upon allegations that, among
other things, (i) the damages incurred by the Debtors in the Cross Tie
Litigation do not fall within the scope of coverage of their insurance policies,
(ii) the liability was not incurred in a year covered by their policies, and
(iii) the Debtors have not properly calculated each insurance company's
allocable share of liability.
 
     In May, 1993, the issues in the Insurance Litigation relating to
indemnification were submitted to non-binding mediation and all pre-trial
discovery in the Insurance Litigation was stayed pending the outcome of the
mediation. As of the date of this Disclosure Statement, the mediation is still
pending, although the Debtors have recently reached a settlement, in principle,
of indemnification issues with some of the defendant insurance companies.(26)
The Debtors are continuing to negotiate with those insurance companies who have
not yet agreed, in principle, to the settlement. The Debtors anticipate that if
no settlement is reached with the remaining insurance companies by late
December, 1993, the litigation respecting their indemnification obligations
will intensify and a determination of the issues by the Delaware Court may be
required. The Debtors' estimate of Cash available on the Effective Date
includes an estimated recovery with respect to the Cross Tie Litigation Defense
Costs.
 
- ---------------
 
25 The other defendants in the Insurance Litigation are: The Aetna Casualty and
   Surety Company, Agricultural Excess and Surplus Insurance Company, Cigna
   Insurance Company, The Continental Insurance Company, Employers Insurance of
   Wausau, Federal Insurance Company, First State Insurance Company, Gibraltar
   Casualty Company, Government Employees Insurance Company, Granite State
   Insurance Company, Harbor Insurance Company, Hartford Accident and Indemnity
   Company, Highlands Insurance Company, International Insurance Company,
   Lexington Insurance Company, Meadows Syndicate, Inc., National Casualty
   Company, National Union Fire Insurance Company of Pittsburgh, PA, New England
   Insurance Company, Republic Insurance Company, Transco Syndicate #1, Ltd.,
   Twin City Fire Insurance Company, Western Employers Insurance Company, and
   Zurich International Ltd.
 
26 Due to the sensitive nature of the Insurance Litigation, and the current
   status of negotiations, the Debtors are not disclosing the details of their
   agreement in principle with such insurance companies.
 
                                       41
<PAGE>   49
 
     c.   Retiree Benefit Obligations
 
     As of the Filing Date, the Debtors were providing health and life insurance
coverage and other similar benefits (all defined as retiree benefits under
Section 1114 of the Bankruptcy Code) under approximately forty-three (43)
different benefit plans (collectively, the "Benefit Plans") to approximately
5,100 retired union and non-union employees (collectively, the "Retirees") and
their surviving spouses or eligible dependents.
 
     The Debtors' coverage under the Benefit Plans vary substantially, with the
majority providing basic hospital and surgical coverage, plus major medical and
Medicare Part B premium reimbursement and life insurance for Retirees. The
Benefit Plans are for the most part non-contributory, meaning that most of the
participants in the Benefit Plans do not pay any portion of the costs associated
therewith (exclusive of deductible amounts and co-payments). In addition, the
deductibles of each of the Benefit Plans vary; some plans have a deductible per
individual and others have a deductible based on all claims made within a year.
The Benefit Plans have various levels of co-insurance coverage and differing
maximums for major medical claims during a Retiree's lifetime.
 
     The Debtors are currently spending approximately $10,000,000 to $11,000,000
pre-tax annually to provide health and life insurance benefits to the Retirees.
These expenses represent approximately three and one-half percent of Lone Star's
total sales. The Debtors estimate that, as of January 1, 1992, the present value
of liability for their current employees for future post-retirement health and
life insurance coverage and the present value of such liability with respect to
Retirees for health and life insurance benefits is approximately $144,500,000.
This estimate is based on an actuarial valuation using accepted methodologies
and assumptions including, among others, demographic assumptions, medical cost
inflation assumptions, and a discount rate of 8.5%.
 
     In total, these obligations translate into approximately $100,000 in
liability for each active Lone Star employee. Additionally, there are more than
two Retirees for each active Lone Star employee. The Debtors maintain that this
liability is a significant cost to the Debtors' estates and the Debtors' various
agreements with the Creditors' Committee and other creditor constituencies
regarding distributions under the Plan are predicated upon a reduction of
retiree benefits. If the Debtors are unable to reduce their liability to the
Retirees, as contemplated by the settlement with the non-Union Retirees and the
discussions with the Debtors' Unions described below, the Debtors would have to
reopen negotiations respecting a reorganization plan which could upset the
consensus already achieved with the Debtors' creditor constituencies and
prejudice plan efforts.
 
     Furthermore, the projected financial statements set forth in Exhibit "F" to
the Disclosure Statement reflect the Debtors' ability to satisfy financial
obligations for the four-year period ending December 31, 1997. It must be noted,
however, that the Debtors' businesses typically follow a five to seven year
cycle which the Debtors believe began in 1992. The four-year projections set
forth on Exhibit "F" reflect only the positive segment of the latest cycle and
do not include those future years in which the Debtors expect the business cycle
to experience a downward trend. It is uncertain whether the Debtors would be
able to maintain the pre-petition level of retiree benefits during such a
downward trend, especially if medical costs continue to escalate. Thus, the
Debtors believe that a modification of their Retiree benefit liability is
necessary for their successful reorganization.(27)
 
     Pursuant to Section 1114 of the Bankruptcy Code, before a debtor undertakes
to reduce its retiree benefit obligations, it is necessary, among other things,
to have a retiree committee appointed to represent the interests of that
debtor's retirees. As noted in Section III(D) above, a Retiree Committee has
been appointed. The Retiree Committee serves as the authorized representative of
non-union retired employees (both hourly and salaried former employees of the
Debtors, and their spouses and dependents receiving post-retirement medical
benefits under any plan, fund or program maintained or established, in whole or
in part, by the
 
- ---------------
 
27 The Retiree Committee has contended that there are ample funds to pay all
   future retiree benefits and that given the projected recoveries to unsecured
   creditors under the Plan no modification is necessary.
 
                                       42
<PAGE>   50
 
Debtors prior to the Filing Date) (collectively, the "Salaried Retirees"). In
addition, each of the Cement, Lime, Gypsum and Allied Workers Div.,
International Brotherhood of Boilermakers Union, AFL-CIO; the United
Steelworkers of America, AFL-CIO; the United Paperworkers International Union,
AFL-CIO; the International Brotherhood of Teamsters, Chauffeurs, Warehousemen
and Helpers of America, Local 445; the International Association of Machinists
(Santa Cruz); the International Union of Operating Engineers, Locals 825, 825A,
825B, AFL-CIO; and the Laborers International Union of North America, Local 60,
AFL-CIO (collectively referred to as the "Unions") will independently act as the
authorized representative of each of their respective former members employed by
the Debtors, and the spouses and dependents of such members receiving
post-retirement medical benefits under any plan, fund or program maintained or
established, in whole or in part, by the Debtors prior to the Filing Date or as
otherwise agreed to between the Debtors and the Unions (collectively referred to
as the "Hourly Retirees").
 
     On or about November 9, 1992, the Debtors, in accordance with Section 1114
of the Bankruptcy Code, submitted a proposal (the "Retiree Proposal") to the
Retiree Committee and the Unions. By the Retiree Proposal, the Debtors desired
to establish pre-determined costs in providing post-retirement medical and life
insurance benefits, thereby introducing stability and predictability into the
financial expense associated with providing such benefits while providing the
Retirees with financial ability to receive an equitable program of
post-retirement welfare benefits. In addition, the Debtors desired to establish
a more uniform benefit program to reduce the administrative costs associated
with providing post-retirement medical and life insurance benefits under several
dozen Benefit Plans. Finally, the Debtors sought to establish a partnership with
the Retirees wherein all parties would share the cost of post-retirement welfare
benefits through employee contributions, increased deductibles, and/or other
modifications to the Benefit Plans which would allocate a greater portion of the
costs associated with providing retiree benefits to the Retirees. Such a
cost-sharing arrangement would enable the Debtors to reduce the financial burden
associated with such benefits. Accordingly, the Debtors proposed to make
specified cash contributions to a trust to be established for the purpose of
providing benefits to the Retirees.(28)
 
     Subsequently, in April, 1993, the Retiree Committee presented the Debtors
with a counterproposal relating to the Debtors' entire Retiree liability, both
Union and non-Union. The counterproposal disputed many of the computations,
statements and conclusions in the Retiree Proposal and challenged the legal
basis for the Debtors' proposed modifications. The Debtors determined that the
counterproposal was unacceptable due largely to the fact that it essentially
called for full payment of retiree benefits through a defined contribution plan
funded by cash and securities of the Debtor. The Debtors believed that the
counterproposal did not adequately address the Debtors' claim that certain
post-1983 non-union retiree benefit plans, with obligations aggregating
approximately $40,000,000 on a present value basis as of January 1, 1992, could
be terminated pursuant to rights allegedly reserved in those plans.(29)
 
     Since such time, the Debtors have worked diligently to reach a consensual
resolution with the Retiree Committee and the Unions with respect to the
modification of their retiree benefits. To this end, the Debtors and the Unions
are discussing a settlement containing the following components: the Unions
would relinquish their rights to some portion of the welfare benefits for Union
Retirees; an allowed unsecured claim would be granted for another relinquished
portion of the welfare benefits for Union Retirees; and Reorganized Lone Star
would retain obligations with respect to the remaining portion of
post-retirement welfare benefits to Union Retirees.
 
     On October 27, 1993, negotiations between the Debtors and the Retiree
Committee produced an agreement in principle on an arrangement to provide
post-retirement medical and life insurance and Medicare Part B premium
reimbursement benefits to Salaried Retirees (the "Agreement"). The Agreement
will be
 
- ---------------
 
28 The Debtors' projections for this defined contribution plan included
   reasonable assumptions such as the rate of medical cost inflation. To the
   extent that the actual future Retiree benefit costs exceed the defined
   contribution, the difference would have to be made up through increased
   Retiree contributions and/or through decreased benefits.
 
29 According to the Debtors' records, generally these termination rights were
   reserved by the Debtors in all Benefits Plans available to employees who
   retired from employment on or after July 1, 1983 (the "Post-1983 Salaried
   Retirees"). (All other Salaried Retirees are sometimes referred to as the
   "Pre-1983 Salaried Retirees".)
 
                                       43
<PAGE>   51
 
embodied in a definitive document which is subject to the approval of the
Bankruptcy Court, upon notice to all Salaried Retirees, in accordance with
Section 1114 of the Bankruptcy Code. The general terms of the Agreement are
described below.
 
     In consideration for a release of all claims and causes of action by the
Retiree Committee (on behalf of the Salaried Retirees) for the modification of
retiree benefits (as defined under Section 1114 of the Bankruptcy Code), the
Debtors have agreed that Reorganized Lone Star shall contribute quarterly
payments to a voluntary employees' beneficiary association ("VEBA"), a
tax-exempt trust to be established under Section 501(c)(9) of the Internal
Revenue Code of 1986, producing a present value cash flow of $41.5 million, as
of January 1, 1994 (using a discount rate of 8.5%).(30)
 
     In the event that the VEBA's cash and marketable securities should fall
below a certain amount, upon the request of the VEBA, Reorganized Lone Star will
advance an amount equal to the next quarterly payment. This advance will not
relieve Reorganized Lone Star of its obligation to make its next regularly
scheduled payment.
 
     In addition, under the Agreement, the VEBA or the Retiree Committee would
receive (on behalf of the Salaried Retirees) a general unsecured claim in the
amount of $8.2 million, which would be settled on the same recovery basis, and
combination of cash and securities, as other general unsecured claims.
 
     The Agreement includes all Salaried Retirees (including certain executives)
who terminated active employment with the Debtors on or before the Effective
Date, but the foregoing VEBA contributions and claim amounts are based on the
number of Salaried Retirees as of January 1, 1993. The present value of cash
payments to the VEBA and claim amounts described above will be adjusted to
reflect any additional employees of the Debtors who retire after January 1, 1993
and on or before the Effective Date.
 
     The VEBA is expected to be operational no later than four months after the
Effective Date and will continue until December 31, 2069. However, upon the
earlier of January 1, 2033 or the January 1st following the year in which there
are less than 150 participants in the VEBA, at the election of the VEBA,
Reorganized Lone Star's obligation to make payments to the VEBA shall cease and
its only remaining obligation to the Salaried Retirees will be to provide them
with the post-retirement welfare benefits available, if any, to its salaried
employees retiring at that time. If the effective date of the VEBA occurs after
the Effective Date, Reorganized Lone Star will continue to provide benefits to
the Salaried Retirees under their existing Benefit Plans until the effective
date of the VEBA, and there will be a ratable reduction in Reorganized Lone
Star's initial quarterly payment to the VEBA based upon the number of days
during the calendar quarter in which the effective date of the VEBA occurs, in
which Reorganized Lone Star is required to maintain the existing Benefit Plans
after the Effective Date. Reorganized Lone Star shall pay for all claims,
including claims that are incurred, but not yet billed, under the existing
Benefit Plans through the effective date of the VEBA.
 
     The VEBA shall be administered by a Board of Trustees (the "Trustees") to
be selected by the Retiree Committee (or the Salaried Retirees). The Trustees
shall be responsible for instituting the health and life insurance benefit plans
to be administered by the VEBA after its effective date (the "New Benefit
Plans"). The New Benefit Plans will be subject to modifications by the Trustees
based on the operating results of the VEBA and the rate of medical inflation. As
a result of the modifications contemplated by the Agreement, the New Benefit
Plans to be instituted by the VEBA will have higher deductibles and lesser
benefits than the existing Benefit Plans in order to account for the reduced
amount of Reorganized Lone Star's contributions to the VEBA as compared to the
projected future value of the benefits under the existing Benefit Plans. Each
Salaried Retiree's benefits will be covered under a New Benefit Plan which takes
into account the present value of the Retiree's benefits under his or her
existing Benefit Plan as well as the additional litigation risks associated with
issues raised by the Debtors with respect to the post-1983 Benefit Plans.
Accordingly, Salaried Retirees covered by post-1983 Benefit Plans will have a
greater reduction in the present value of benefits
 
- ---------------
 
30 The Debtors have estimated that, as of January 1, 1994, the present value of
   the liability for existing retirement health and life insurance coverage to
   the Salaried Retirees (using a discount factor of 8.5%) is approximately
   $57.5 million (excluding individuals who retired on or after January 1,
   1993).
 
                                       44
<PAGE>   52
 
provided under the New Benefit Plans than that provided to Salaried Retirees
covered under pre-1983 existing Benefit Plans.
 
     Reorganized Lone Star's obligation to make contributions to the VEBA can be
modified only in certain limited circumstances, as generally outlined below.
First, as a general matter, the Debtors and the Retiree Committee have
incorporated provisions in the Agreement in anticipation of future health care
reform legislation. In this regard, Reorganized Lone Star may reduce its
contribution to the VEBA to the extent that a tax or other cost relating to a
health reform program, which results in a reduction of costs which would
otherwise have been incurred by the VEBA under its New Benefit Plans, is
incurred by Reorganized Lone Star. In such a case, Reorganized Lone Star's
reduction in annual contribution in the quarter(s) following such a tax or cost
will be limited to the lesser of the amount of the VEBA's savings or the tax or
other costs incurred by Reorganized Lone Star associated with such savings.
Determinations as to the amount of the VEBA's savings will be made annually, at
Reorganized Lone Star's election, which, in the event of a dispute, will be made
by an independent actuary, acting as an arbitrator, whose determination shall be
binding upon the VEBA and Reorganized Lone Star.
 
     Finally, at any time, Reorganized Lone Star has the right to prepay 110% of
the outstanding balance of the contributions and claims due to the VEBA (using
an annual discount factor of 8.5%).
 
     In addition, Reorganized Lone Star may, at any time, terminate all of its
obligations under the Agreement to continue to contribute to the VEBA and to
resume provision of benefits to the Salaried Retirees directly, provided that it
agrees to provide Salaried Retirees with substantially the same medical and life
insurance and Medicare Part B premium reimbursements which such Salaried
Retirees were entitled to receive prior to the modifications effectuated by the
Agreement, except to the extent that such benefits had been terminated or
otherwise diminished pursuant to an "allowed claim," "buy out" or other
compensating event. Such a termination would be irrevocable by Reorganized Lone
Star, and, except as provided below, the benefits provided by Reorganized Lone
Star would thereafter be fully vested and not subject to reduction. Upon the
exercise of its termination rights, Reorganized Lone Star will be able to
benefit from remaining VEBA funds to provide benefits and to further substitute,
integrate and/or coordinate any benefits provided by it with any form of health
insurance programs which may become available. For example, as under the
existing Benefit Plans the Agreement requires Salaried Retirees to enroll in any
such health insurance programs or treat them as if they had enrolled. To the
extent that Salaried Retirees enroll, Reorganized Lone Star agrees to pay the
net cost of any premiums or deductibles, including enrollment fees.
 
     The Agreement provides that payments by Reorganized Lone Star may be
accelerated, upon the occurrence of certain "Events of Default," in which case
the entire amount of Reorganized Lone Star's outstanding obligation will become
due to the VEBA (using an annual discount factor of 8.5%). An Event of Default
is defined as:
 
          (A)  Failure by Reorganized Lone Star to remit quarterly contributions
     within 10 days after receipt of written notice of non-payment by the
     Trustees;
 
          (B)  Reorganized Lone Star: (i) commences a voluntary case for relief
     under the Bankruptcy Code or any similar state or federal law; (ii)
     consents to the assignment of its assets for the benefit of creditors, or
     the appointment of a receiver, trustee, assignee, liquidator or similar
     official (each known as a "Custodian"), in each case, under any applicable
     bankruptcy or insolvency law; (iii) an order or decree under any applicable
     bankruptcy law for relief is entered against Reorganized Lone Star in any
     involuntary case; or (iv) an order or decree is entered by any court of
     competent jurisdiction appointing a Custodian for the liquidation of the
     assets of Reorganized Lone Star; and
 
          (C)  Any acceleration by the holders of the Senior Notes.
 
     If the Senior Notes are no longer outstanding, Reorganized Lone Star is
also obligated to prepay an amount equal to the next four quarterly
contributions in cash (and reamortize the remaining quarterly contributions
taking into account such prepayment) to the VEBA, in the event that Reorganized
Lone Star's debt rating on its outstanding public debt, commercial paper, or
bank debt falls below certain specified levels. In the event Reorganized Lone
Star has no ratable debt, this prepayment obligation is not applicable.
 
                                       45
<PAGE>   53
 
     The Agreement provides that all reasonable expenses incurred by the Retiree
Committee (or the Trustees) in establishing the VEBA shall be reimbursed by
Reorganized Lone Star, subject to a cap of $150,000 for any expenses incurred
after the Effective Date.
 
     The reductions in coverage to be implemented by the Agreement are
contingent on Reorganized Lone Star instituting certain reductions in the
post-retirement welfare benefits to its post-Effective Date retired salaried
employees within 180 days of such Effective Date. Generally, these reductions
will reduce the value of benefits available to such individuals by approximately
20%. To the extent such reductions are not timely implemented, the quarterly
VEBA contributions and unsecured claim granted to the VEBA would be increased
ratably.
 
     In the event of a material adverse change to the treatment of Salaried
Retirees in the Plan as a result of changes in the form or structure of the
Debtors' Plan, the Agreement is to be renegotiated to the reasonable
satisfaction of the Retiree Committee.
 
     Under the Agreement, the Retiree Committee agrees to use its reasonable
best efforts to ensure the VEBA's initial qualification and its continuing
tax-exempt status, including obtaining any necessary rulings from the Internal
Revenue Service and preparing information required under the Internal Revenue
Code and ERISA.
 
     In addition, the Trustees shall provide Reorganized Lone Star (its
successors, assigns and agents) with such cost and census information concerning
the new benefit plans, the VEBA and the Salaried Retirees as Reorganized Lone
Star may reasonably request.
 
     Reorganized Lone Star (its successors, assigns and agents) shall have the
right to audit for compliance with the terms of the Agreement and to verify the
accuracy of any notices provided to it by the Retiree Committee, the Trustees,
or any agents or the successors of the same. The Retiree Committee, the
Trustees, and any of their agents shall be obliged to cooperate with any such
audits and verification efforts, including, but not limited to, promptly
responding to reasonable information requests.
 
     If a court ever determines that a Salaried Retiree is not bound by an order
approving the Agreement, then the contributions to the VEBA and the claim amount
shall be reduced proportionately.
 
     Under the Agreement, Reorganized Lone Star has the right to assign all or
any part of its obligations under the Agreement with advance written notice to
the Trustees; provided, however, no such assignment shall prejudice any of the
rights or remedies of the Trustees against Reorganized Lone Star. The Trustees
may assign the right to receive any or all quarterly contributions from
Reorganized Lone Star; provided that no such assignment shall have any effect on
the obligations of Reorganized Lone Star.
 
     Except as provided above, all disputes arising under the Agreement shall be
resolved through binding arbitration.
 
     The Debtors' projections provide sufficient cash payments to accommodate
the terms of the Agreement and a consensual resolution of the outstanding issues
with the Unions.(31) In addition, the Debtors' estimates of Allowed Claims
described herein include contingencies which should sufficiently account for the
claims granted to the Debtors' Retirees under the Agreement and the proposals
discussed. Therefore, the Agreement and any settlement reached with the Unions
should not have a material effect on cash flows, equity values, feasibility, or
recoveries under the Plan.
 
     Under the Agreement, and as part of the ongoing negotiations with the
Unions, the Debtors have requested a waiver of Retirees' claims arising from a
reduction of benefits which otherwise would be allowable. If the Agreement is
not approved by the Bankruptcy Court and/or a settlement is not reached with the
Unions, and Union or non-Union retiree benefits are ultimately modified in
accordance with Section 1114(g) of the Bankruptcy Code, the modification could
result in a general unsecured claim for the Salaried Retirees
 
- ---------------
 
31 Assuming a settlement on the basis presently discussed, the Debtors estimate
   that the annual pre-tax cash cost to Reorganized Lone Star for
   post-Confirmation Retiree obligations will be approximately $9 million.
 
                                       46
<PAGE>   54
 
and for the Union Retirees in the amount of the reduction.(32) Such claims have
not been included in the Debtors' analysis of estimated claims and, therefore,
the Debtors' estimated to the extent such claims recoveries could be negatively
impacted to the extent such claims do arise.
 
     The Debtors believe that the Agreement with the Retiree Committee is fair
and equitable to all parties. The Agreement fixes the Debtors' financial
obligation associated with providing retiree benefits at a significantly reduced
level while enabling Retirees to institute and administer valuable programs for
postretirement medical and life insurance benefits. For these reasons, the
Debtors, as well as the Retiree Committee, will seek the approval of the
Agreement by the Bankruptcy Court prior to Confirmation. The Agreement is solely
between the Debtors and the Retiree Committee. The Creditors' Committee (which,
as noted below, must also be satisfied with the Agreement) has not had an
opportunity to review the Agreement and, thus, has not indicated its position
with respect thereto. The entry of a Final Order in form and substance
reasonably satisfactory to the Retiree Committee and the Creditors' Committee,
approving the Agreement pursuant to Section 1114 of the Bankruptcy Code, is a
condition precedent to the effectiveness of the Plan.(33)
 
     However, while the Debtors will continue to work toward the approval of the
Agreement, and a consensual resolution with the Unions, if such approval is not
achieved in a timely fashion, or if there is a breakdown in negotiations with
the Unions, litigation respecting modifications of the Debtors' retiree benefits
in accordance with Section 1114 of the bankruptcy code may be commenced prior to
Confirmation.
 
     Although litigation may become necessary, the Debtors cannot at this time
estimate the costs associated therewith. Nevertheless, costs are likely to be
substantial. In any event, the Debtors believe that litigation over retiree
benefits may have an adverse impact on employee morale and publicity and,
consequently, on operations. However, the Debtors will seek to limit the
negative effects of any such litigation by, among other things, communicating to
their present employees their efforts in trying to avoid litigation and the
reasons why it nonetheless became necessary. In addition, any negative impact
may be limited due to the widely publicized fact that many other companies have
reduced or modified retiree benefits.
 
     The Debtors have paid their retiree benefit obligations as they have become
due since the Filing Date. Accordingly, no liability resulting from a
modification of retiree benefits has yet arisen. As discussed above, the
Retirees will only have claims if and when the Debtors' retiree benefit
obligations are modified.
 
     To the extent that any claims arise as a result of a modification of
retiree benefits, and the amount of any such claim is not determined prior to
Confirmation, a reserve will be established with respect to such claims, either
in an amount agreed upon by the parties or established by the Bankruptcy Court
after appropriate notice and a hearing.
 
     d.   Environmental Claims and Obligations
 
     The Debtors and their affiliates operate facilities or conduct operations
in numerous states, including cement plants, cement distribution terminals, land
utilized for cement raw materials, aggregate quarries and reserves, ready-mixed
concrete facilities, concrete block plants, prestressed concrete plants,
architectural concrete plants, asphalt plants and building materials plants. In
connection with such operations, the Debtors,
 
- ---------------
 
32 The Debtors have maintained that if benefits for Post-1983 Salaried Retirees
   were modified in accordance with the terms of the Benefit Plans, these
   Retirees would not have general unsecured claims because, at all times, the
   Debtors have maintained the right to amend, modify or terminate
   post-retirement welfare benefits for the Post-1983 Salaried Retirees.
 
   The Retiree Committee maintains that a threshold question of whether a
   modification is "necessary" would have to be decided, under Section 1114 of
   the Bankruptcy Code, before Benefit Plans for any Salaried Retirees could be
   terminated or otherwise modified, and only if that issue were resolved in the
   Debtors' favor could a court consider whether the Benefit Plans may be
   terminated or modified. The Retiree Committee maintains that (i) such
   modification would not be necessary and thus impermissible under section
   1114; (ii) the Post-1983 Salaried Retirees have non-forfeitable rights to
   their benefits; and (iii) in any event, the modification or termination of
   the Benefit Plans for Post-1983 Salaried Retirees would constitute a
   modification of retiree benefits which would create a general unsecured
   claim.
 
33 The Agreement reserves the rights of the Retirees to vote on a plan of
   reorganization if the Agreement is not approved by the court or the Plan is
   not confirmed.
 
                                       47
<PAGE>   55
 
like most major cement suppliers, are subject to numerous local, state and
federal environmental, zoning and land use laws and regulations, including
special regulations respecting the use of waste fuels.
 
     On the Filing Date, the Debtors were subject to a number of pending
proceedings involving federal and state regulatory agencies relating to
environmental issues and certain of the Debtors had been named by the United
States Environmental Protection Agency (the "EPA") as Potentially Responsible
Parties in administrative proceedings for the clean-up of Superfund Sites
pursuant to the Comprehensive Environmental Response, Compensation and Liability
Act ("CERCLA"). With respect to several of these sites, there are pending
disputes concerning respective liabilities of the Debtors and third parties for
clean-up costs and other environmental enforcement and liability matters. In
addition, certain of the Debtors have been and continue to be involved in
administrative and other proceedings brought by state and local governmental
authorities relating to state and local environmental and land use regulation
compliance.
 
     Since the Filing Date, the Debtors have been engaged in the ongoing review
and analysis of their substantial environmental liabilities in light of the
Chapter 11 filings. In addition, the Debtors have designed and implemented an
extensive environmental audit program of their operating facilities in order to
more efficiently evaluate their options with respect to their environmental
obligations.
 
     - Issues Respecting Property in Dania, Florida:  Among the more significant
of the environmental matters in which the Debtors have been involved are civil
litigation and regulatory matters relating to land and improvements owned by one
of the Debtors, LSBCE, located in the City of Dania in Broward County, Florida
(the "Dania Site"). As of the Filing Date, the Dania Site was leased to NCL
Corp. ("NCL"), which lease was rejected. As of the Filing Date, there was a
lawsuit pending in the United States District Court for the Southern District of
Florida, commenced by a predecessor of NCL pursuant to which Lone Star, Building
Centers, LSBCE, NCL and Enviropact, Inc. (an environmental consultant retained
by NCL), among others, were parties, concerning responsibility for the costs of
cleaning up contaminants at the Dania Site (the "Dania Litigation"). Enviropact,
Inc. has since been voluntarily dismissed from the litigation. LSBCE's position
in this action is that the contamination was caused by either NCL or its
predecessor. This action was stayed by the filing of these Chapter 11 cases.
Thereafter, NCL filed a motion to lift the automatic stay to continue the Dania
Litigation which was resolved pursuant to a stipulation providing that the
automatic stay would be terminated on or about February 23, 1992.
 
     In connection with the clean-up of the Dania Site and in accordance with
the terms and conditions of an Administrative Order of Consent between LSBCE and
the EPA, LSBCE agreed, among other things, to undertake the disposal and
treatment of the contaminated soil and groundwater of the Dania Site (the
"Removal Action"). In connection therewith, LSBCE entered into, subject to
Bankruptcy Court approval, a Wet Excavation Contract and a Production Burn
Contract (the "Contracts") with OHM Corporation ("OHM"), to facilitate the
Removal Action. The Debtors believed that the Contracts would enable LSBCE to
efficiently and cost effectively satisfy the requirements of the EPA regarding
the clean-up of the Dania Site, while simultaneously preserving the Debtors'
interests in such property. On or about March 4, 1992, an order was entered
approving the Contracts with OHM. In October, 1992, the EPA-prescribed removal
action aspect of the clean-up, involving soil and limited groundwater treatment,
was substantially completed and LSBCE is preparing for negotiations with state
or federal environmental authorities regarding further action that may be
required to monitor and, if necessary, treat the groundwater and investigate
other areas of the site to determine if further remediation may be required.
 
     As of October, 1992, discovery in the NCL litigation, which had
recommenced, was nearly complete and the parties had submitted all papers,
motions and cross-motions for summary judgment. At a pretrial conference in May,
1992, the trial court granted NCL's motion to dismiss LSBCE's counterclaims on
the basis that they did not survive the bankruptcy of the former lessee of the
Dania Site (NCL's predecessor) (a ruling which the Debtors do not believe would
affect LSBCE's affirmative defenses). Additionally, the court permitted LSBCE to
file amended counterclaims pertaining to post-bankruptcy activities and NCL
moved to strike these counterclaims as well. In response, Lone Star submitted
additional papers moving for summary judgment and opposing NCL's motion to
strike the counterclaims. A trial in the Dania Action was scheduled to commence
November 29, 1993. However, the parties have reached a settlement, subject to
Bankruptcy
 
                                       48
<PAGE>   56
 
Court approval, pursuant to which NCL will be granted an allowed general
unsecured claim in the amount of $7,300,000, the Dania Action will be dismissed
with prejudice and the parties (NCL, Building Centers, LSBCE and Lone Star) will
release each other and their respective officers, directors, agents, employees
and affiliates, and their successors and assigns from any and all causes of
action arising out of the Dania Action, the Dania Site or the Dania lease.
 
     The Debtors believe that the proposed settlement is in the best interests
of their estates considering (i) the likelihood of NCL's success in recovering
damages, costs and litigation expenses, (ii) the likelihood of the Debtors
recovering from NCL on their counterclaims, and (iii) the anticipated expense of
continued litigation. The proposed settlement is within the range of the
Debtors' estimate of liability to NCL and, accordingly, the settlement will not
have an adverse impact on the distributions proposed under the Plan. As of June,
1993, when the settlement in principle was reached, legal fees and costs
(including those of expert witnesses) in connection with the NCL litigation were
approximately $4,000,000. These fees include the cost of extensive
investigations of complex environmental issues conducted in preparation of
litigation and trial. The Debtors believe that these legal and expert fees and
costs are comparable to the fees and costs incurred by NCL in connection with
the litigation. It was anticipated that preparation for and trial of this matter
would cost an additional $1,000,000 to $1,500,000.
 
     - Issues Respecting Property in Salt Lake City, Utah:  A second significant
environmental matter involving Lone Star concerns five sites in the vicinity of
Salt Lake City, Utah, on which cement kiln dust ("CKD") was deposited by a
predecessor of Lone Star over many years. The sites are owned by third parties
who permitted the CKD to be deposited. The EPA has listed two of these sites on
the Superfund National Priority List ("NPL"). The remaining three sites have
been investigated by and are of concern to federal, state and local
environmental authorities. In that regard, claims have been filed by federal,
state and local authorities as follows:
 
     1.   United States on behalf of the EPA -- claim for past (through March,
        1991 for $410,981) and future (amount not specified) response costs
        relating to NPL and non-NPL Sites;
 
     2.   State of Utah/Utah Department of Environmental Quality -- claim for
        past ($70,824.44) and future (in excess of $58,877,000, total capital
        cost) response costs relating to NPL and non-NPL Sites, as well as a
        possible future claim for natural resource damages (amount not
        specified);
 
     3.   Davis County, Utah Health Department -- claim for future response
        costs relating to a non-NPL site located within Davis County, Utah
        (amount specified at $9,543,000);
 
     4.   Salt Lake City County, Utah Health Department -- claim for future
        response costs relating to two non-NPL sites located within Salt Lake
        County, Utah (amount not specified).
 
     In addition, Lone Star has commenced litigation in the United States
District Court, District of Utah, Central Division (the "Utah District Court")
against the various owners of the NPL sites, known generally as the Horman Group
and the Williamsen Group, seeking, among other things, contribution for response
costs Lone Star had or would incur (the "Utah District Court Action"). Each of
the Horman Group and Williamsen Group have filed counterclaims in the Utah
District Court Action seeking, among other things, contribution for response
costs as well as damages based upon various state law causes of action,
including fraud, negligent misrepresentation, breach of contract,
indemnification and various tort claims. In addition to a general denial of
liability on the merits of the various claims, Lone Star asserted certain
affirmative defenses, including assumption of the risk, statute of limitations,
comparative negligence, estoppel and waiver. The automatic stay was modified by
the Bankruptcy Court to allow the Utah District Court Action to proceed to
trial.
 
     The Horman Group filed a proof of claim seeking at least $3,000,000 plus
additional damages, including punitive damages, to be determined by the Utah
District Court. The Williamsen Group filed three unliquidated claims seeking
$4,335,488.15, $6,628,416.17, and $5,905,984.82, respectively, plus unspecified
attorneys' fees, costs, etc. In addition, two owners of the non-NPL sites, not
parties to the Utah District Court Action, filed unliquidated claims against
Lone Star seeking amounts of $1,216,666 and up to $8,000,000, respectively, plus
unspecified attorneys' fees, costs, etc. Finally, an owner of property adjacent
to the NPL site
 
                                       49
<PAGE>   57
 
has also filed a proof of claim in an amount "to be determined by the EPA."
Accordingly, after revisions to reflect duplications in the amounts sought under
the various governmental and private party claims, claims filed against Lone
Star relating to the Utah matter aggregate approximately $115,000,000.
 
     Lone Star has been working to resolve each of these claims, and has
recently reached agreements in principle with the United States, and the state
of Utah and the Williamsen Group. The essential terms of the settlement reached
with the United States and the state of Utah include the allowance of a general
unsecured claim in the amount of $18,500,000 in exchange for a complete release
of all claims relating to both the NPL and non-NPL sites, including natural
resource damages (whether asserted in the proofs of claim or not) and
contribution protection and covenants-not-to-sue pursuant to CERCLA. The
settlement agreement with the Williamsen Group provides, in pertinent part, for
the dismissal of the Utah District Court Action with prejudice, the exchange of
mutual releases and the allowance of a general unsecured claim in the amount of
$250,000. An aggregate amount in excess of the proposed claims to be allowed
pursuant to the settlements was included in the Debtors' estimates of Allowed
Claims.
 
     A draft of the settlement agreement is being prepared by the United States
Department of Justice ("DOJ") attorney in Region VIII. Based on early settlement
discussions, it is possible that, as part of this settlement, the DOJ will
require some resolution of Lone Star's potential future liability at sites not
specifically addressed above or identified in the governments' proofs of claim.
 
     Lone Star expects to memorialize the agreed upon terms of these settlements
and obtain the requisite Bankruptcy Court approvals prior to the Effective Date.
 
     Lone Star will continue to work to resolve the remaining claims. In the
event that the claim of the Horman Group is not resolved, trial is set for early
November, 1993 before the Utah District Court. In addition, the Debtors believe
they will be able to resolve the claims of the owners of the non-NPL sites and
the owner of the property adjacent to the NPL site for relatively small sums. If
the claims of the Horman Group or of the owners of the non-NPL sites or the site
adjacent to the NPL site are not settled prior to the Effective Date, a reserve
will be established to satisfy such claims, either in amounts agreed upon by the
parties, or established by the Bankruptcy Court after notice and a hearing. The
Debtors included amounts for claims arising from these matters in their
estimates of Allowed Claims.
 
     - Miscellaneous Environmental Matters:  Other environmental matters
involving on-going or potential remediation of sites where the Company does not
have current operations include:(34)
 
          (i) a former woodtreating site in Dade County, Florida. At this site,
     removal activities involving contaminated soils have been completed;
     groundwater monitoring and possible groundwater treatment remain. State and
     County authorities and private parties have filed claims related to such
     activities against the Debtors' estates, and LSBCE has filed suit for
     contribution against certain of the private parties in the United States
     District Court for the Southern District of Florida. Although negotiations
     concerning the resolution of these claims are under way, the Debtors do not
     expect substantial liability to arise from these claims because the
     clean-up of the site has been completed;
 
          (ii) a former woodtreating site in Minneapolis, Minnesota. This site
     was operated by a non-Debtor subsidiary whose indemnification obligations
     under the purchase and sale agreement for third party claims are
     purportedly guaranteed by Lone Star. A lawsuit brought by a property owner
     adjoining the site has resulted in a claim against the Debtors' estates by
     Shaw Acquisition Corporation ("Shaw") the purchaser of the property for,
     among other things, the clean-up of contamination allegedly spreading to
     adjoining real property and the remediation of the site. In addition, (i)
     Shaw has put the non-Debtor subsidiary and Lone Star on notice and is
     preparing to amend its claim with respect to an additional alleged claim by
     the Minnesota Pollution Control Agency concerning the investigation and
     remediation
 
- ---------------
 
34 The Debtors believe that their potential liability with respect to these
   other environmental matters, collectively, will not materially impact upon
   recoveries to the holders of Allowed Claims because amounts respecting such
   claims are included in the amount of Allowed Claims estimated by the Debtors.
   In addition, the estimated amounts required to satisfy the continuing
   environmental obligations were considered by the Debtors when they calculated
   future cash flows.
 
                                       50
<PAGE>   58
 
     of the site. Lone Star and its non-Debtor subsidiary have reached a
     settlement with Shaw regarding these claims and the related litigation,
     pursuant to which Shaw will enter into an agreement with the agency to
     remediate the site. In addition, (i) Shaw will be granted an allowed
     general unsecured claim in the amount of $3,400,000, the distributions of
     which will be placed in escrow to fund remediation of the site, (ii) the
     litigation will be dismissed with prejudice in exchange for a $280,000 cash
     payment to be made by the non-Debtor subsidiary, and the parties will
     exchange mutual releases and the indemnity and guaranty will terminate.
     Substantially all of the Allowed Claim to be granted to Shaw was included
     in the Debtors' estimates of Allowed Claims. The Debtors will seek to
     obtain Bankruptcy Court approval of this settlement prior to the Effective
     Date;
 
          (iii) leaking underground fuel storage tanks on Company-owned sites in
     Dallas, Texas and Littleton, Massachusetts and on a site formerly owned by
     the Company in Salt Lake City, Utah. Clean-up or remediation at these sites
     are in various stages of investigation or clean-up under the jurisdiction
     of state environmental authorities. The Massachusetts environmental
     authorities have filed a claim against the Debtors' estates with respect to
     the Littleton site. The Debtors are in the process of selling the Littleton
     site and as part of the sale negotiations, the proposed purchaser has
     agreed to assume environmental liability related to the site. Accordingly,
     after the proposed sale is consummated, the Debtors intend to eliminate or
     reduce the claim of the Massachusetts environmental authorities to an
     amount that will not materially affect the Debtors' estimates of Allowed
     Claims;
 
          (iv) property adjoining a former cement plant site in Houston, Texas
     which was contaminated with refinery wastes by a prior owner. The Company
     has instituted a lawsuit seeking contribution for clean-up costs and/or
     clean-up by the prior owner. State environmental authorities have been
     notified but to date have taken no action and have not filed any claims
     against the Debtors' estates;
 
          (v) a former cement plant site located near Brandon, Mississippi which
     was sold in 1989. The current owner of this site notified the Company in
     October, 1992, that contamination requiring clean-up has been discovered on
     the site. Litigation respecting this and other matters relating to this
     property is described in Section III(G)(4)(e) of this Disclosure Statement;
 
          (vi) a portion of a cement plant site located in Davenport, California
     which is owned by a partnership formed in 1987 in which Trap Rock and a
     non-Debtor affiliate of the Company hold ownership interests along with a
     British corporation affiliated entity. Lone Star contributed to this
     partnership the land on which the cement plant is located and leased the
     plant to the partnership. Under a series of complex purchase agreements,
     leases and partnership agreements, it is probable that pre-1987 liabilities
     associated with the plant remain with Debtor Lone Star or other Debtor
     affiliates. In September, 1992, the Company was notified that the Santa
     Cruz County District Attorney's office was conducting an investigation of
     allegations by former employees of the partnership of improper waste
     disposal practices at the site over approximately twenty-five years ending
     in the mid 1980's. The Company has conducted an investigation of this
     matter and has been working with the Santa Cruz County District Attorney's
     office and the California Regional Water Quality Control Board Central
     Coast Region to resolve the alleged violations and determine if any
     remedial action may be required. Recently, the parties reached an agreement
     in principle respecting these issues pursuant to which Lone Star will grant
     an allowed administrative priority claim to be distributed among specified
     Santa Cruz County and state governmental entities and an application to
     approve such Agreement is pending before the Bankruptcy Court. The
     partnership and the Company's partner therein have filed general unsecured
     unliquidated claims against the Debtors' estates arising out of obligations
     under the various agreements and indemnification obligations contained
     therein which would include environmental claims. Lone Star is continuing
     to evaluate and resolve these claims; and
 
          (vii) eight Superfund sites located in various states (other than
     those sites described above), as to which the Company or an affiliate has
     been named a Potentially Responsible Party ("PRP") by the EPA. In each
     case, the EPA has not filed claims against the Debtors' estates. Certain
     other PRP's have filed claims against the Debtors' estates and the Debtors
     are evaluating and seeking to resolve such
 
                                       51
<PAGE>   59
 
     claims. The amounts of such claims are not significant, and were included
     in the Debtors' estimates of Allowed Claims.
 
     - Recent Action Commenced By the EPA: In late September, 1993, the EPA,
Region V, commenced a six count administrative enforcement action against Lone
Star regarding the burning of hazardous waste fuels at its Greencastle, Indiana
cement facility. The complaint seeks civil penalties totalling over $3,800,000
and certain affirmative injunctive relief contained in a proposed compliance
order. The action against Lone Star is one of over thirty such actions (against
a number of entities) brought as part of an EPA Headquarters Enforcement
Initiative seeking aggregate fines in excess of $19,800,000. (See page 36 for a
discussion of Lone Star's program of burning waste fuels at its Greencastle
facility.)
 
     In general, the EPA alleges violations by Lone Star of certain requirements
of the Resource Conservation and Recovery Act as amended, 42 U.S.C. sec.6901 et
seq. In particular, the largest portion of the civil penalties assessed against
Lone Star, in excess of $3,000,000, involves a dispute over certain test data
with respect to, and the handling of, cement kiln dust produced during hazardous
waste fuel burning at the Greencastle facility. Lone Star believes that it has
defenses to this count and the other counts in the EPA complaint.
 
     Lone Star is currently evaluating the allegations contained in the EPA
complaint and, if necessary, will vigorously defend such action. Furthermore,
Lone Star will be participating in an informal settlement conference with the
EPA, as contemplated by the procedural rules governing the administrative
action, and may be able to resolve many or all of the allegations in that forum
on a consensual basis.
 
     However, in the event that Lone Star is ultimately required to pay all or
any portion of this penalty, such payment could, depending upon the timing of
its assessment and payment date, either decrease projected recoveries under the
Plan or negatively impact upon the Debtors' projections and the ultimate value
of Reorganized Lone Star.
 
     e.   Claims Respecting Industrial Revenue Bonds -- Settlements With
Mitsubishi and CCF
 
     As noted in Section II(B)(4) of this Disclosure Statement, prior to the
Filing Date, Lone Star arranged for various Authorities to issue Bonds to
finance, among other things, the acquisition of pollution control facilities and
other assets throughout the United States. Specifically, Bonds were issued with
respect to (a) pollution control and other facilities in (i) Davenport,
California, (ii) Cape Girardeau, Missouri, (iii) Pryor County, Oklahoma, and
(iv) Oglesby, Illinois, and (b) dock, wharf facilities and other equipment
located in New Orleans, Louisiana.
 
     Lone Star is obligated under loan, sale, lease or guaranty agreements to
pay the Indenture Trustees the amounts due on the outstanding Bonds over various
periods of time. However, payment of the Bonds may be made by draws upon the
Letters of Credit issued by Mitsubishi. On or prior to the issuance of the
Letters of Credit, Mitsubishi sold to CCF a 44.35% undivided interest and
participation in the Letters of Credit and the related obligations of Lone Star
(Mitsubishi and CCF are hereinafter collectively referred to as the "Banks").
 
     With respect to the Bonds issued in connection with Lone Star's New Orleans
facilities (the "New Orleans Bonds") and the Pryor, Oklahoma facilities (the
"Pryor Bonds"), disputes arose between Lone Star and the Banks. The lease
respecting the New Orleans facility (the "New Orleans Lease") required, among
other things, that Lone Star, as lessee, make quarterly payments of rent to the
New Orleans Authority, as lessor, in an amount equal to the principal and
interest that the Authority pays to the holders of the New Orleans Bonds. The
leases respecting the Debtors' use of equipment at the Pryor facility (the
"Pryor Leases") required, among other things, that Lone Star, as lessee, pay
rent to the Pryor Authority, as lessor, equal to the principal and interest
payable under the Pryor Bonds.
 
     Commencing on the Filing Date, Lone Star discontinued payments under the
New Orleans and Pryor Leases. The Banks objected to the Debtors' request for an
extension of time to assume or reject the Leases pursuant to Section 365(d)(4)
of the Bankruptcy Code unless the Debtors were directed to pay rent on the New
Orleans and Pryor Leases. The Debtors opposed this objection on the grounds that
Lone Star's obligation
 
                                       52
<PAGE>   60
 
under the Leases would be effectively satisfied by draws on Letters of Credit
issued by the Banks to purchase the Bonds.
 
     The Banks took the position that they had a lien on the New Orleans and
Pryor facilities and that they could exercise any rights exercisable by the
Bondholders. Pursuant to the terms of the respective Indentures, in the event of
a default, the Indenture trustee, upon written request of a percentage of the
Bondholders, shall declare all indebtedness due under the lease, and the
Indenture trustee shall be obliged to exercise all of the rights and remedies of
the Bondholders, including, without limitation, the rights under the Leases
respecting the payment of rent, such as seeking to terminate the lease and to
exclude Lone Star from possession.
 
     On or about October 15, 1991, Mitsubishi filed a proof of claim in the
amount of $26,363,795.27, alleging that $15,759,400.89 was secured and
$10,604,394.38 was unsecured. CCF filed a similar claim in the amount of
$20,946,407.59, alleging that $12,559,378.78 was secured and $8,387,028.81 was
unsecured. Thus, the Banks filed claims based upon the Letters of Credit in the
aggregate amount of $47,310,202.86.
 
     In an effort to avoid costly and time consuming litigation respecting the
relative rights of the parties to the facilities, and respecting the allowed
amount and status of the Banks' claims, Lone Star and the Banks agreed to a
settlement resolving complex issues respecting the status and priority of claims
asserted by Mitsubishi and CCF, including their request for Lone Star's
post-petition payment of rent under the New Orleans and Pryor Leases.
 
     Pursuant to the settlement, among other things, the claims of Mitsubishi
and CCF shall be allowed as general unsecured claims in the aggregate amount of
$45,328,871.07. This amount represents principal and accrued interest on the
Bonds secured by the Letters of Credit issued by the Banks as of the Filing
Date, and is approximately $2,000,000 less than the amounts set forth in the
Banks' proofs of claim. The Banks reserved their rights to assert claims for
additional costs and expenses, and the Debtors reserved their rights to object
to such assertion. However, the Banks agreed not to assert any claims for
additional interest resulting from continuing draws on the Letters of Credit
during the post-petition period. The Debtors shall on a continuing basis
cooperate with the Banks in remarketing the Bonds, provided that all costs and
expenses of such remarketing after the Filing Date are borne by the Banks.
 
     In addition, the Debtors, in their sole discretion, may sell the New
Orleans and Pryor facilities but, until sold, the Debtors shall maintain the
facilities at their sole cost and expense. The facilities are to be sold by the
Debtors either at a sale price subject to the Bankruptcy Court's approval, or if
such approval is not required, with the Banks' approval as to prices, which
approval shall not be unreasonably withheld.
 
     Pursuant to the settlement, the Banks shall be paid 35% of all proceeds of
sale of the New Orleans facility remaining after deduction for the reasonably
necessary costs and expenses of preserving or disposing of such facility
recoverable pursuant to Section 506(c) of the Bankruptcy Code (the "New Orleans
Facility Proceeds"). However, the maximum amount payable to the Banks respecting
the New Orleans Facility Proceeds is $6,000,000.
 
     Until the earlier of such time as the facilities covered by the Pryor
Leases are sold or payments to the Banks under a plan of reorganization are
completed, the Debtors shall pay to the Banks the sum of $.42 for each ton of
cement processed through the plant with a minimum payment of $150,000 per year
(the "Oklahoma Production Payments"). These Oklahoma Production Payments accrue
from July 1, 1991, and are payable quarterly.
 
     Any New Orleans Facility Proceeds or Oklahoma Production Payments received
by the Banks prior to the confirmation of a plan of reorganization as
hereinabove provided shall be applied in reduction of the allowed claims of the
Banks on a dollar for dollar basis. If either the New Orleans facility or the
Pryor facility is not sold by the Debtors prior to the Banks' receipt of the
full distribution under the Plan, the Debtors' obligation to pay a portion of
the sales proceeds to the Banks and to make the Oklahoma Production Payments
shall terminate. Accordingly, upon distribution to the Banks of the Cash, Senior
Notes, Asset Proceeds Notes, New Lone Star Common Stock and Reorganized Lone
Star Warrants (if applicable) on the Effective Date, such obligations shall
terminate. Any proceeds generated from a sale, subsequent to Confirmation, of
the New
 
                                       53
<PAGE>   61
 
Orleans facility and any Oklahoma Production Payments shall be applied to
reduce, on a dollar for dollar basis, Allowed Claims of the Banks.
 
     The settlement with the Banks was approved by the Bankruptcy Court on April
14, 1992. As of July 31, 1993, the total amount of Oklahoma Production Payments
made to the Banks amounted to approximately $610,224, and the remaining amount
of the overall Allowed Claims of Mitsubishi and CCF with respect to these
Letters of Credit was $44,718,646.
 
     f.   Claims Asserted by Credit Suisse
 
     As discussed in Section II(B)(4) of this Disclosure Statement, Credit
Suisse issued four separate irrevocable letters of credit, aggregating
$17,199,580, to secure payment by the Company of principal and interest on
various pollution control Bonds. Credit Suisse, Lone Star, and LSC entered into
four separate reimbursement agreements pursuant to which LSC agreed, among other
things, to pay to Credit Suisse an amount equal to all amounts advanced by
Credit Suisse under the Credit Suisse letters of credit (the "Credit Suisse
Letters of Credit") and Lone Star guaranteed payment to Credit Suisse of the
amounts owed by LSC.
 
     On or about October 15, 1991, Credit Suisse filed proofs of claim (the
"Credit Suisse Claims") against Lone Star and LSC for unliquidated amounts in
connection with potential payouts under the Credit Suisse Letters of Credit. On
May 20, 1992, the Indenture Trustee with respect to these Bonds drew down on the
Credit Suisse Letters of Credit to cover the principal and interest owing on the
Bonds. The total amount of the draw was $16,448,004.32, although Lone Star
disputed whether this amount exceeded what should have been drawn. During the
course of these Chapter 11 cases, Credit Suisse asserted that it was entitled to
post-petition interest on their claims arising from its Letters of Credit
because they contended that LSC is solvent. In addition, Credit Suisse asserted
that it relied on LSC's separate corporate existence in connection with its
establishment of the Credit Suisse Letters of Credit and, therefore, would
object to the substantive consolidation of the Debtors' estates (see pages 68
through 70 for a discussion of substantive consolidation). To resolve this issue
and to avoid any uncertainty regarding the substantive consolidation of their
estates, the Debtors have reached an agreement in principle with Credit Suisse,
pursuant to which Credit Suisse will be granted an allowed general unsecured
claim against LSC in an amount equal to the total amount drawn on the Credit
Suisse Letters of Credit, including amounts drawn to pay interest on the Bonds
prior to May 20, 1992. In addition, the Debtors also established a separate plan
class for creditors of Debtors which are potentially solvent including LSC, of
which Credit Suisse is a major creditor (see pages 86 through 87 for a
discussion of the treatment of such claims). The Debtors anticipate a
stipulation approving the settlement with Credit Suisse will be approved by the
Bankruptcy Court prior to the Effective Date.
 
     Credit Suisse also asserts a claim against Lone Star with respect to a
letter agreement between the parties and a corresponding promissory note
executed by Lone Star on February 29, 1988, pursuant to which Credit Suisse
loaned $25,000,000 to Lone Star. As of the Filing Date, the amount of principal
and interest owed by Lone Star on this loan was $25,673,750.
 
     g.   Claims By and Against James E. Stewart
 
     As discussed in Section III(F)(1)(a) of this Disclosure Statement,
according to the findings of the Cahill Report, the value of personal expenses
allegedly incurred by James E. Stewart, the former Chairman and Chief Executive
Officer of Lone Star, and paid by the Debtors, was $1,072,564. On January 15,
1991, the Debtors and Mr. Stewart entered into stipulations, approved by the
Bankruptcy Court (i) rejecting and terminating an employment agreement dated as
of August 18, 1983 as amended and supplemented between Lone Star and Mr.
Stewart, and providing that Mr. Stewart's relationship with Lone Star be
irrevocably terminated (this stipulation reserved each party's rights respecting
whether the termination was for cause); (ii) rejecting a deferred compensation
agreement dated as of December 20, 1984, pursuant to which Mr. Stewart was to
receive $1,000,000, in four consecutive annual installments (the first such
installment had
 
                                       54
<PAGE>   62
 
been paid to Mr. Stewart on February 8, 1990); and (iii) rejecting an option
agreement, pursuant to which Mr. Stewart was granted an option to purchase a
corporate aircraft at book value.(35)
 
     In May, 1991, Mr. Stewart filed a proof of claim against the Debtors'
estates in the aggregate amount of $7,464,000, plus equity interests. Mr.
Stewart's claim was for damages arising from the rejection of his employment
agreement, deferred compensation agreement, and aircraft option agreement.
 
     After extensive negotiations, during which Mr. Stewart consistently denied
liability and asserted that all expenses billed to Lone Star were proper, Mr.
Stewart indicated a willingness to settle all disputes with Lone Star by
withdrawing his claims against the Debtors (other than his rights respecting
indemnification, insurance coverage, annuity and pension payments, and Lone
Star's executive medical plan) if Lone Star would agree to withdraw its claims
against him.
 
     After giving serious consideration to the merits of Mr. Stewart's claims,
the Debtors, in the exercise of their reasonable business judgment, determined
that a settlement with Mr. Stewart would be in the best interests of the
Debtors' estates and creditors. Accordingly, in November, 1991, the Bankruptcy
Court entered an order approving a settlement agreement between the Debtors and
Mr. Stewart. Pursuant to the Bankruptcy Court's order, this settlement does not
release Mr. Stewart from liability to parties other than the Debtors and their
non-Debtor affiliates nor does the order waive or prejudice the rights of such
third parties to seek subordination of Mr. Stewart's stock interests in Lone
Star.
 
     Pursuant to the terms of the settlement: Mr. Stewart and Lone Star
released all claims against each other, except that Mr. Stewart retained his
rights to his annuity and pension payments (aggregating approximately $345,000
per year) and Lone Star agreed to take no action to prevent Mr. Stewart from
receiving any such payments.(36) Mr. Stewart retained approximately $145,000
being held by Lone Star in a plan established pursuant to section 401(k) of the
Internal Revenue Code, and is entitled to participate in Lone Star's executive
medical plan as in effect on the Filing Date, without prejudice to the Debtor's
rights under Section 1114 of the Bankruptcy Code. Mr. Stewart is also entitled
to continued coverage under whatever directors' and officers' liability policy
Lone Star maintains as to its former officers and directors.
 
     Mr. Stewart retained his rights of indemnification (except as limited with
respect to a certain trust described hereinbelow), and the Debtors reserved
their rights to oppose any assertion of indemnification rights. Otherwise, Mr.
Stewart agreed to release all claims against Lone Star, its affiliates, present
and former officers, directors, agents, servants and attorneys (including,
without limitation, attorneys retained by Lone Star's board of directors, or any
committee thereof).
 
     Mr. Stewart is a beneficiary under a trust agreement between Lone Star and
Sovran Bank N.A. (now NationsBank and hereinafter "Sovran"), as trustee, dated
as of April 8, 1988 (the "Trust Agreement"). The Trust Agreement was established
over two years prior to the Filing Date to provide a source of funding for Lone
Star's obligations to its non-employee directors to provide retirement benefits
and indemnification for certain business acts. Mr. Stewart is not eligible for
retirement benefits but is eligible for indemnification under the Trust
Agreement. The funds subject to the Trust Agreement are separate from the
Debtors' assets.
 
     On or about September 9, 1991, Mr. Stewart sought payment from the trust
for certain alleged indemnification obligations of Lone Star to wit, legal fees
incurred by Mr. Stewart in connection with negotiating the stipulations
rejecting his various contracts with Lone Star and the termination of his
employment with Lone Star, and because of litigation commenced against Mr.
Stewart by Low, Inc., the landlord under a lease pursuant to which a predecessor
of Lone Star and Mr. Stewart are tenants (the "Low Lease"). This lease was
rejected by Lone Star on or about February 19, 1991. Lone Star believed such
reimbursement request was improper and so notified Sovran. Thereafter, Mr.
Stewart commenced an action in the Florida State Court seeking an order
compelling Sovran to make distributions to Mr. Stewart.
 
- ---------------
 
35 The book value of the aircraft was approximately $2,090,000. The Debtors sold
   the corporate aircraft for approximately $2,940,000.
 
36 These payments are made by non-debtor third parties, and the Debtors believe
   that such payments may not be disrupted because of the conduct or bad acts of
   the recipient. However, the Debtors will not be required to make payment of
   the annuity and pension amounts if, for any reason, the third party obligers
   fail to make same.
 
                                       55
<PAGE>   63
 
     As part of the settlement, Lone Star agreed to withdraw its objection to
Mr. Stewart's indemnification request under the Trust Agreement. However, the
parties agreed that Mr. Stewart may seek reimbursement under the Trust Agreement
of no more than $280,000 with respect to claims against him made by Low, Inc.
and certain other matters.
 
     Except for that amount, Mr. Stewart waived and released any and all claims
he has or may have against Lone Star respecting the Low Lease and for
indemnification under the Trust Agreement up to the date of the Agreement and
expressly agreed that he will not in the future seek reimbursement under the
Trust Agreement for claims (including without limitation expenses incurred in
connection with such claims) asserted against him by Lone Star, by him against
Lone Star or for matters in any way related to the Low Lease.
 
     In addition, Mr. Stewart agreed to indemnify the Debtors for any claims
which may arise from Lone Star's failure to withhold any sums for income and
social security taxes by reason of implementation of the settlement should it be
ultimately determined that Lone Star had such requirement. Finally, Mr. Stewart
retained his equity interest as a shareholder of Lone Star, and the Debtors
agreed to take no action with respect to the priority of such equity interest
vis a vis other shareholders.
 
     h.   Claims By and Against Sheldon Kaplan
 
     Prior to the Filing Date, Mr. Sheldon Kaplan served as an outside member of
the Debtors' Board of Directors. In addition, Mr. Kaplan is a member of the firm
of Kaplan, Strangis & Kaplan, P.A. ("Kaplan, Strangis") which served as a
principal outside counsel to Lone Star prior to the Filing Date. As discussed in
Section III(F) of this Disclosure Statement, Mr. Kaplan was identified in the
Cahill Report as allegedly charging $22,068 of personal expenses to Lone Star in
violation of company policy.
 
     On or about October 9, 1991, Kaplan, Strangis filed a proof of claim
against the Debtors' estates asserting (i) a liquidated unsecured claim in the
amount of $74,248 based on billed and unpaid fees and expenses for legal
services rendered to Lone Star by Mr. Kaplan and his firm prior to the Filing
Date, and (ii) an unliquidated claim for unbilled legal services rendered by Mr.
Kaplan and his firm prior to the Filing Date. Mr. Kaplan asserted that the value
of such unbilled services exceeded $200,000.
 
     After extensive negotiations, in which Mr. Kaplan consistently denied
liability and asserted that the expenses billed to Lone Star were authorized by
Lone Star's former Chairman and therefore proper, Mr. Kaplan indicated a
willingness to settle all disputes with Lone Star by withdrawing all claims
against Lone Star and the Affiliated Companies held by Mr. Kaplan and his law
firm, if Lone Star withdrew its claims against him and his firm including, those
claims set forth in the Cahill Report, and if the parties exchanged releases. In
June, 1992, the Bankruptcy Court entered an order approving a settlement
agreement between the Debtors, Mr. Kaplan and Kaplan, Strangis.
 
     Pursuant to this settlement, (i) Mr. Kaplan and his law firm released all
claims held against Lone Star, its affiliates, present and former officers,
directors, agents, servants and attorneys (including, without limitation,
attorneys retained by Lone Star's board of directors, or any committee thereof),
except claims for indemnification, and (ii) Lone Star and its Affiliated
Companies released Mr. Kaplan and his law firm from all claims they hold or may
have held against Mr. Kaplan and his firm including all claims for improper
expenses set forth in the Cahill report, except as provided below. However, the
Debtors' release of Mr. Kaplan and his law firm pursuant to the Agreement did
not release Mr. Kaplan or his firm from any liability to third parties. In
addition, rights with respect to the assertion and defense of preference claims
were reserved.
 
     i.   Employee And/Or Director Indemnification and Contribution Claims
 
     Pursuant to the Plan, the obligations of the Debtors (i) to indemnify their
directors, officers and employees serving after the Filing Date pursuant to any
provisions of Debtors' charter, by-laws, and/or applicable state law, and (ii)
pursuant to any agreements heretofore entered into between the Debtors and
 
                                       56
<PAGE>   64
 
their officers and directors will be assumed.(37) Thus, pursuant to the
Plan, the Debtors' present indemnification obligations to both current and
former directors, officers and employees will be assumed.
 
     The Debtors believe that assumption of the indemnity obligations with
officers, directors and employees who served the Debtors in the post-petition
period is appropriate in view of the benefits accorded to the Debtors' estates
by the services of the officers and directors. In light of the fact that Lone
Star is a publicly traded company subject to various federal and state reporting
and other requirements and in view of the large demands placed on the Debtors'
officers and directors as a consequence of running such a large and complex
operation and the accountability of such officers and directors to shareholders,
many of the Debtors' officers and directors may be unwilling to serve
post-confirmation without an assurance that they would be adequately protected
from personal liability. In addition, any litigation with such officers,
directors and employees would not only strain relationships between the Debtors
and such key individuals, but would likely severely distract the attention of
such individuals from their day-to-day responsibilities and, in turn,
substantially hinder the Debtors' (or Reorganized Debtors') operations.
Furthermore, liquidation of such indemnification claims would require a
substantial amount of time, effort and cost which would further interfere with
operations. Therefore, the Debtors believe that it is appropriate, necessary and
reasonable to assume the entirety of their indemnification obligations. To this
end, the Debtors have in place $5,000,000 of insurance coverage for
indemnification obligations to current and former officers and directors of the
Debtors and their affiliates for claims based on acts occurring after March 15,
1991 and through March 15, 1994.
 
     At the present time the Debtors are only aware of the following pending
lawsuits which could trigger the Debtors' indemnification obligations: William
D. Kirkpatrick vs. Lone Star Industries, Inc. and James E. Stewart, Circuit
Court of the 17th Judicial Circuit, Florida; Case No. 90-36275-11; Maurice Cohn
vs. Lone Star Industries, Inc. and James E. Stewart, U.S. District Court,
District of Connecticut; Civil Action No. B-89-617 (JAC); Andrew Garbarino, et
al. v. James E. Stewart, U.S. District Court, District of Connecticut; Civil
Action No. B-90-631 (JAC) (see page 63 for a discussion of the Cohn and
Garbarino lawsuits).(38) The Debtors believe, however, that any indemnification
obligations to which they may potentially be subjected will be of a type to be
covered by the applicable indemnity insurance policies. If coverage is denied,
the Debtors will exercise all reasonable diligence in contesting the denial as
any litigation with directors, officers or employees respecting such claims
would be time consuming and not serve the best interests of the Debtors'
estates.
 
     Since the commencement of these Chapter 11 proceedings, a large number of
the Debtors' employees have filed claims in connection with the Debtors'
indemnification obligations to them. After reviewing these claims, the Debtors
have determined that (i) given their maintenance of directors and officers
insurance, (ii) their belief that any such claims will be minimal at most, and
(iii) the estimated level of recovery to holders of Allowed Unsecured Claims, it
is in their estates' best interests to assume these obligations rather than
incur the substantial expense of objecting to each claim individually.
Accordingly, the assumption of such obligations should have no material effect
on the value of Reorganized Lone Star. Furthermore, the Debtors believe that
assuming the indemnification obligations will benefit the Debtors in that it
will enhance the morale of those officers, directors and employees who benefit
from such obligations.
 
     By assuming such indemnification obligations, claims asserted against the
Debtors thereunder, would, to the extent valid, be paid in full by Reorganized
Lone Star. The Equity Committee has asserted that absent the Debtors' assumption
of such obligations, claims arising thereunder would otherwise be treated as
general unsecured claims. While the issue is not entirely free from doubt, the
Debtors believe that, even assuming the
 
- ---------------
 
37 Included among such agreements is the Debtors' Trust Agreement with Sovran
   which was established to, among other things, satisfy indemnification
   obligations to beneficiaries thereof (See Section III(G)(3)(g) for a
   discussion of the Trust Agreement).
 
38 Kirkpatrick filed an action seeking damages in excess of $10,000 alleging the
   following: (i) breach of implied and express contracts concerning certain
   ownership rights; (ii) intentional infliction of emotional distress; (iii)
   fraud and misrepresentations respecting employment at Lone Star; and (iv)
   breach of implied and express contracts concerning insurance benefits. This
   action is presently stayed. Kirkpatrick has also filed proofs of claim
   against Lone Star based on, among other things, the allegations made in his
   lawsuit. Prior to the Effective Date, the Debtors will either reach a
   settlement with Mr. Kirkpatrick or file an objection to Mr. Kirkpatrick's
   proof of claim in the Bankruptcy Court.
 
                                       57
<PAGE>   65
 
Equity Committee's position is correct, assumption of these obligations is
nonetheless appropriate for the reasons stated herein. The Equity Committee has
indicated that it may object to this provision of the Plan and, if it does so,
the Debtors intend to oppose any such objection.
 
     In addition, pursuant to the Plan, on the Effective Date, all claims of
present or former officers, directors and employees against the Debtors for
contribution as may arise under applicable laws or agreements, in any case in
connection with matters occurring on or prior to the Effective Date, shall be
discharged and no distributions under the Plan shall be made on account thereof.
This provision is designed to prevent any liability to the Debtors as a result
of any payments made by the insurance companies in the Class Action Proceedings
on behalf of any present or former officers or directors. In such litigations
(which are described in Section III(G)(4)(b)), to the extent the insurance
companies make any such payments, they may seek to subrogate themselves to the
contribution rights, if any, of the Debtors' present or former directors or
officers. Thus, the Debtors have included this provision in the Plan to make it
clear that Reorganized Lone Star shall have no liability for any such claims or
payments.
 
     j.    Potential Rancho Cordova Claim
 
     In December, 1983, Lone Star sold certain real property located in Rancho
Cordova, California ("Rancho Cordova") to a master trust, a co-mingled
investment vehicle in which the assets of various tax qualified pension plans
sponsored by Lone Star were invested for the benefit of various pension plans
maintained for employees (the "Master Trust"). Northern Trust Company is the
trustee of the Master Trust. Simultaneously with such sale, the Master Trust
leased Rancho Cordova back to Lone Star pursuant to a certain lease agreement
(the "Rancho Cordova Lease"). Rancho Cordova was one of four separate properties
which were sold to the Master Trust and leased back to Lone Star. Each of these
properties were deemed Qualified Employer Real Property ("QERP") under the
Employee Retirement Income Security Act of 1974 (as amended, "ERISA") and were
thus eligible for such sale-leaseback transactions. Of these four properties,
two were later re-purchased by Lone Star. In addition, as a result of an
assignment of the lease of the third parcel (which was consented to by the
Master Trust), to Tarmac LoneStar, Inc. (a former affiliate), there existed a
possibility that Rancho Cordova ceased to qualify as a QERP because the Master
Trust's remaining investments no longer met ERISA geographic diversification
requirements (which regulate transactions between a pension plan and members of
the control group for the employees covered by the plan) and continuing to hold
this property created the possibility of violations under ERISA and the Internal
Revenue Code. Accordingly, Lone Star applied to the Department of Labor ("DOL")
for an exemption with respect to this potential violation.
 
     Previously, Lone Star had assigned the Rancho Cordova Lease to RMC
LONESTAR, a joint venture in which Lone Star maintains a 50% interest, with the
consent of the Master Trust. Under the Rancho Cordova Lease, RMC LONESTAR, as
lessee, is authorized to mine the property and in turn pay a royalty on the
aggregates produced. Pursuant to the Rancho Cordova Lease, there is a minimum
guaranteed annual royalty through 1998 and non-guaranteed royalties from 1999
through 2003. If the non-guaranteed royalties are not paid on a monthly basis,
the Master Trust may terminate the Rancho Cordova Lease.
 
     After receiving Lone Star's application for an exemption, the DOL required
Lone Star to appoint a special fiduciary to determine whether the terms of the
Rancho Cordova Lease were fair and whether continuing such lease would be in the
best interests of the Master Trust. In accordance with the DOL's instructions, a
special fiduciary was appointed. After a review of the property and the Rancho
Cordova Lease, the special fiduciary determined that the Rancho Cordova Lease
terms were fair, but recommended that Lone Star guarantee a 12% internal rate of
return on the Master Trust's investment by means of an option which would
require Lone Star to purchase the property at the end of the Rancho Cordova
Lease at a price which would assure this rate of return (the "Put Option").
Subsequent to the Filing Date, the special fiduciary revised its initial finding
and recommended that the internal rate of return be raised to 14% (the
"Guaranteed Yield") because of changes in the market for pension investments in
real estate.
 
     The Debtors determined that termination of the Rancho Cordova Lease would
seriously impair RMC LONESTAR's source of minerals and aggregates utilized in
its business operations and, in turn, would impair
 
                                       58
<PAGE>   66
 
the value of Lone Star's investment in this joint venture. Additionally, the
inability of the Master Trust to continue to hold the Rancho Cordova property if
it failed to qualify as a QERP, would adversely affect the Master Trust's
ability to maximize the potential significant return available, thereby creating
additional potential pension liabilities for Lone Star.
 
     In light of the implications of continued potential ERISA and Internal
Revenue Code violations, Lone Star and the Master Trust entered into an
agreement dated December 18, 1992 (the "Rancho Cordova Agreement"), subject to
Bankruptcy Court and DOL approval, in order to meet the requirements set forth
by the special fiduciary for the continued lease of the Rancho Cordova property
by the Master Trust and to facilitate obtaining the DOL exemption. In general,
the purpose of the agreement is to provide the Master Trust with the Guaranteed
Yield for its anticipated investment in the Rancho Cordova property which period
coincides with the period in which RMC LONESTAR is expected to carry on
commercial mining activities on the Rancho Cordova property (or any portion
thereof). Specifically, the Rancho Cordova Agreement provides, among other
things, for: (i) Lone Star to guaranty the Master Trust an internal rate of
return in the Rancho Cordova property of not less than 14% per annum subject to
a $10,000,000 limit on Lone Star's liability; (ii) the Master Trust to have a
Put Option, secured by a letter of credit or cash collateral deposit in the
initial amount of approximately $6,700,000, subject to annual adjustment; (iii)
Lone Star to fund up to $200,000 per year to develop a program of soil
remediation at the Rancho Cordova property; (iv) Lone Star to have a right to
purchase the Rancho Cordova property at designated amounts; and (v) the Master
Trust to receive an interest in the Rancho Cordova property should the amount
that Lone Star has to pay exceed its $10,000,000 maximum liability.
 
     Subsequent to entering into the Rancho Cordova Agreement, Lone Star
determined that a current payment to the Master Trust would be preferable and
more beneficial to its estate than would performance under such agreement. In
particular, Lone Star's management believed that a payment to the pension fund,
rather than a collateral deposit, would increase the level of funding for the
pension plans and would assist in discussions with the Pension Benefit Guaranty
Corporation respecting, among other things, potential underfunding of the Master
Trust's participating pension plans and would enhance the value of Reorganized
Lone Star. Accordingly, Lone Star, after discussions with the Master Trust, its
trustee and the special fiduciary, proposed that in lieu of its performance
under the Rancho Cordova Agreement, the Master Trust would release Lone Star
from its obligations thereunder in consideration of a $6,000,000 administrative
expense payment to the Master Trust (the "Release Agreement").
 
     In general, the Debtors believe that the Release Agreement should provide
the Master Trust with sufficient funds such that continuation of the Rancho
Cordova Lease would serve the best interests of the pension plans participating
in the Master Trust. Moreover, any payments made to the Master Trust by Lone
Star would benefit Lone Star inasmuch as the assets of the pension plans
maintained by the Master Trust would be increased. This in turn would reduce
obligations, if any, of Lone Star in the event such pension plans were
underfunded (for a discussion of potential claims relating to pension plans see
Section III(G)(3)(k) below). Moreover, the Release Agreement will allow Lone
Star to seek to obtain exemption from the DOL's prohibited transaction rules.
 
     Recently, after a review of the Release Agreement, the special fiduciary to
the Master Trust determined that Lone Star's proposed payment would be in the
best interests of participants and beneficiaries in the pension plans
participating therein. The special fiduciary also opined that acceptance of the
Release Agreement, in lieu of performance under the Rancho Cordova Agreement, is
in the best interests of participants and beneficiaries of the pension plans
that are invested in the Master Trust. Accordingly, the Debtors have prepared an
application to approve the Release Agreement, which should be filed with the
Bankruptcy Court in the near future. However, if the application is not approved
by the Bankruptcy Court and/or a DOL exemption is not obtained on or prior to
Confirmation, the rights, if any, of Northern Trust Company to assert any
existing claims against the Debtors (including claims set forth in proofs of
claim timely filed by Northern Trust Company) and the Debtors' rights to object
to any such claims shall be expressly preserved. In addition, Northern Trust
Company asserts that any order entered approving the Release Agreement should
also provide that Lone Star's obligations, if any, under the Rancho Cordova
Lease which was assigned to RMC LONESTAR would be assumed by Lone Star and
continue.
 
                                       59
<PAGE>   67
 
     k.   Pension Benefit Guaranty Corporation Claims
 
     On the Filing Date, the Debtors sponsored the following pension benefit
plans (collectively, the "Pension Plans"): (i) Lone Star Industries, Inc.
Salaried Employees Pension Plan, (ii) New York Trap Rock Corporation Pension
Plan for Hourly Paid Employees, (iii) Lone Star Industries, Inc. Amended Pension
Plan for Hourly Employees; (iv) Pension Plan for Hourly Employees of Lone Star
Industries, Inc. at Pryor, Oklahoma and New Orleans, Louisiana; (v) Marquette
Cement Manufacturing Company Division Wage Employees Revised Pension Plan; (vi)
Pension Plan for Hourly Paid Employees of Lone Star Industries, Inc. at Dixon,
Illinois; (vii) Marquette Company Pension Plan for Hourly Employees at the
Memphis Distributing Terminal; (viii) Lone Star Industries, Inc. Pension Plan
for Hourly Employees at Salt Lake City, Utah; (ix) I.C. Materials, Inc./Traver
Supply Company Pension Plan; and (x) LoneStar Florida Cement, Inc. Pension Plan
for Hourly Employees. The Pension Plans are covered by ERISA and in accordance
therewith, the Debtors and all members of their controlled groups are obligated
to contribute to the plans the amounts required to satisfy certain minimum
funding standards. Throughout these Chapter 11 cases the Pension Plans have
remained active and, as of the date hereof, the Debtors have met substantially
all of their payment obligations with respect to such Pension Plans in
accordance with the Internal Revenue Code of 1986 (as amended, the "Revenue
Code") and ERISA.
 
     The Pension Benefit Guaranty Corporation (the "PBGC"), a United States
government wholly-owned corporation which administers and enforces the defined
benefit pension plan termination insurance program under ERISA, filed three
separate proofs of claim against the Debtors' estates on or about October 15,
1991 with respect to certain of the Pension Plans. The PBGC's claims consist of
(i) a claim for $196,129.79 based upon the Debtors' alleged failure to pay
annual premiums to the PBGC, together with interest and penalties thereon, with
respect to certain of the Pension Plans; (ii) a claim for $2,318,288 based upon
the Debtors' alleged failure, in the event of a termination of certain of the
Pension Plans, to meet the minimum funding requirements under the Revenue Code;
and (iii) a contingent claim for $61,066,255 based upon the Debtors' potential
liability should the Pension Plans be terminated with insufficient assets to
satisfy all benefit liabilities.
 
     The Pension Plans may be terminated if certain statutory requirements of
ERISA are met. In the event of a termination of the Pension Plans and absent
substantive consolidation, the Debtors and all members of their controlled group
would be jointly and severally liable for the unfunded benefit liabilities of
such plans. The PBGC now asserts that, in the event the Pension Plans are
terminated, such underfunding would be approximately $73,000,000.
 
     The PBGC has informed the Debtors of its concern that because the Plan
contemplates the distribution of cash and the proceeds of sales of certain
assets for the benefit of holders of the Asset Proceeds Notes, significant value
will leave the Debtors' estates which might otherwise be available to
Reorganized Lone Star's Pension Plans to satisfy future underfunding claims and
because the Senior Notes represent additional obligations that may impair PBGC's
recoveries in the event of a future termination of the Plans. Furthermore, the
PBGC has advised the Debtors of its belief that the transactions proposed in the
Plan may result in an unreasonable increase in the PBGC's risk of long run loss.
The Debtors strongly dispute such assertions. Finally, the PBGC has indicated
that unless the Pension Plans are adequately protected, it may be compelled to
seek to terminate the Pension Plans prior to Confirmation of the Plan. The
Debtors intend to oppose any such attempted termination.
 
     The Debtors dispute the PBGC's assessment of the underfunding liability and
assert, instead, that given their intent to assume the Pension Plans'
obligations, the underfunding should be calculated on a going forward basis and
on that basis more closely approaches approximately $23,500,000. In general, the
Debtors calculated this liability by ascertaining the fair market value of the
Pension Plan's assets and deducting from such amount the present value of the
projected pension liabilities discounted at an appropriate rate.
 
     As more fully described below, the Plan provides for the substantive
consolidation of the Debtors' estates (see Section IV(B)). In connection with
this proposed consolidation, the PBGC has stated that it does not believe, in
the absence of a settlement between the PBGC and the Debtors, the Debtors may
substantively consolidate their estates given PBGC's right, in the event of a
termination of the Pension Plans, to seek joint and several liability against
each and every Debtor for the satisfaction of unfunded benefit liabilities. In
this
 
                                       60
<PAGE>   68
 
regard, the PBGC had indicated its intent to oppose the Debtors' efforts to
substantively consolidate their estates if no settlement were reached. As more
fully described herein, the Debtors believe that substantive consolidation is
appropriate in these cases.
 
     The Debtors have reached an agreement in principle with the PBGC settling
these issues and, assuming the agreement is consummated, the PBGC will not seek
a termination of the Pension Plans. Pursuant to the proposed settlement, Lone
Star will grant the PBGC a first priority lien on their Oglesby, Illinois cement
plant and on the Debtors' interest in the Kosmos Cement Company joint venture to
secure any underfunding obligations which may arise in the event of a future
termination of the Pension Plans. In addition, on the Effective Date, the
Debtors will contribute to the underfunded Pension Plans approximately $13
million above the Plans' minimum funding requirements, in the form of Allowed
Unsecured Claims or Asset Proceeds Notes.
 
     The liens granted pursuant to the agreement with the PBGC will last for at
least five years and will be released in the event the Debtors meet certain
financial tests to be agreed upon based on the Debtors' projections. In
addition, if the Debtors provide security at some future time to the holders of
the Senior Notes, then the Debtors will provide PBGC a pro rata share of such
security on a pari passu basis to secure any underfunding obligations which may
arise in the event of a future termination of the Pension Plans. In the event of
a future termination of the Pension Plans, PBGC's claims against the Debtors
will not be limited to the security described above.
 
     The PBGC is preparing a settlement agreement to carry out the proposed
settlement, and the Debtors anticipate obtaining approval of such agreement on
or prior to the Confirmation Date. The economic effect of the settlement of the
PBGC matters as described above will not materially affect the value of the
Debtors' estates because, in preparing their projections, the Debtors assumed
the payment of ongoing Pension Plan funding obligations. In addition, the
Debtors do not believe that the liens to be granted pursuant to this settlement
will affect their valuation of Reorganized Lone Star.
 
     l.   Other Unsecured Claims Disputed By The Debtors
 
     (i) Personal Injury Claims: As part of its general business operations,
Lone Star supplied sand to various customers for use in their operations. Some
persons alleged that exposure to respirable free silica in the sand caused
physical injuries, including silicosis. In addition, certain of the Debtors'
business activities pose a certain risk of injury to equipment operators and
other persons in the work area. As a result, certain of the Debtors' employees
or subcontractors, as well as certain non-employee third parties claim to have
suffered various injuries at or near the Debtors' manufacturing and distribution
plants and facilities. Over 200 claims (the "Personal Injury Claims") were filed
against the Debtors' estates in connection with pre-petition personal injury
claims and personal injury lawsuits arising from such activities. The Personal
Injury Claims were filed in the aggregate amount of $22,952,000 plus
unliquidated amounts. The automatic stay was lifted as it applied to many of the
Personal Injury Claims and, consequently, approximately 75 such claims were
settled.
 
     The Debtors believe that there is sufficient coverage pursuant to their
personal injury liability insurance policies to pay any liability or obligation
that may ultimately arise with respect to the remaining Personal Injury Claims.
Accordingly, by an application filed on or about August 4, 1993, the Debtors
also seek to expunge those Personal Injury Claims that have been settled and
estimate the remaining Personal Injury Claims at zero dollars for purposes of
voting on the Plan and for determining the feasibility of the Plan. A hearing to
consider this application is scheduled for October 12, 1993.
 
     (ii) Monarch Related Pension Claims: Over 100 claims were filed in
unliquidated amounts against the Debtors' estates relating to alleged pension
benefit liability by former employees of Marquette Company ("Marquette") at a
cement plant formerly owned by Marquette. Marquette sold the plant to Monarch
Cement Company ("Monarch") in 1979. In 1982, Lone Star acquired Marquette and
assumed Marquette's pension liability. In 1987, Monarch substantially closed the
cement plant, thereby triggering certain subsidized pension benefit obligations.
 
                                       61
<PAGE>   69
 
     Both prior and subsequent to the Filing Date, Lone Star and Monarch engaged
in litigation as to the apportionment of the pension benefit liability arising
from different interpretations of the pension sharing arrangement contained in
the cement plant sale agreement between Marquette and Monarch. The litigation
was determined in Monarch's favor, which decision was affirmed by the United
States Court of Appeals for the Tenth Circuit. An amount representing the
Debtors' estimates of their ultimate liability with respect to such pension
benefits is included in the estimates of Allowed Claims.
 
     (iii) Other Unsecured Claims: In addition to those unsecured claims
discussed in detail herein, there remains unresolved approximately 67 unsecured
claims filed in the aggregate amount of approximately $21,500,000 (plus
unliquidated amounts), which are disputed to some extent by the Debtors.(39)
These claims include, among others, certain workers compensation claims and
claims relating to rejected leases, executory equipment leases and other
contracts, and outstanding surety bonds. In each case, the Debtors intend to
negotiate a consensual resolution of their dispute. However, where negotiations
are unsuccessful, the Debtors will object to such claims and in the event such
objections are not resolved prior to the Effective Date, deposit an amount of
Cash and Securities respecting such Disputed Claims into the Reserve in an
amount agreed to by the parties or, where no agreement can be reached, in an
amount as determined by the Bankruptcy Court after notice and a hearing. The
Debtors estimate that these unresolved unsecured claims will ultimately be
allowed in the aggregate amount of approximately $11,600,000.
 
     4.   OTHER LEGAL PROCEEDINGS
 
     a.   Litigation Respecting Lone Star's Board of Directors
 
     On or about February 10, 1992, the Equity Committee commenced an adversary
proceeding in the Bankruptcy Court seeking to compel the Debtors to call a
shareholders meeting for the purpose of electing directors. Thereafter, the
Debtors undertook efforts to resolve the issues respecting this adversary
proceeding in a consensual manner. Ultimately, after extensive negotiation and
litigation, a resolution and settlement was reached (as amended, the "Adversary
Settlement"). The Adversary Settlement became effective upon its approval by the
Bankruptcy Court pursuant to an order dated October 13, 1992 (the "Approval
Date") and terminates on the earlier of November 20, 1993 or 60 days after
Confirmation (the "Termination Date"). Set forth below is a summary of the
material terms of the Adversary Settlement.
 
     Pursuant to the Adversary Settlement, commencing on October 28, 1992 (the
"Implementation Date"), and continuing through and including the Termination
Date, Lone Star's Board of Directors is to be constituted as follows: (a) David
W. Wallace, Allen E. Puckett and William M. Troutman shall remain and continue
to serve as class III directors, (b) Meyer Luskin and Lawrence Ramer shall serve
as class II directors and Kenneth Y. Knight shall serve as a class I director,
(c) James E. Bacon and Jack R. Wentworth shall remain on the Board and serve as
class I directors (the "Other Class I Directors") for the period prescribed for
directors elected under Article IV, Section 4.7(g)(4) of Lone Star's Certificate
of Incorporation by vote of the $4.50 Preferred and the $13.50 Preferred (voting
together as a single class) and shall resign at the end of such term, (d)
Theodore F. Brophy shall be elected by the $13.50 Preferred (the "$13.50
Preferred Director") and serve for the period prescribed for directors elected
under Article IV, Section 4.8(11)(c) of Lone Star's Certificate of
Incorporation, and (e) any person named in subparagraphs (a) through (d)
immediately above who serves on any of the official committees appointed in the
Debtors' Chapter 11 cases, shall resign from such committee on the
Implementation Date. In the event that any of the directors identified above
leave Lone Star's Board prior to the Termination Date, he may only be replaced
in the manner provided in the Adversary Settlement. In addition, through the
Termination Date, one of the directors designated by the Equity Committee and
one of the Other Class I Directors or the $13.50 Preferred Director shall have
the right to be included on each committee of Lone Star's Board of Directors.
 
     Additionally, prior to the Termination Date, no meeting of common or
preferred stockholders shall be held (except as provided for the replacement of
certain directors appointed by the preferred shareholders) and
 
- ---------------
 
39 Where a creditor filed a claim against more than one Debtor entity but the
   Debtors believe such claim is based on a single liability, only a single
   claim has been included in these figures.
 
                                       62
<PAGE>   70
 
no party to the Adversary Settlement shall take (or acquiesce in) any action to
seek, prior to the Termination Date, any meeting of, or written consents or
proxies from, any preferred or common stockholder of Lone Star other than in
connection with the Confirmation of a plan of reorganization.
 
     In addition, pursuant to the Adversary Settlement, an adversary proceeding
commenced against Lone Star by Lacos Land Company ("Lacos"), the Chairman of the
Equity Committee, and an adversary proceeding commenced by Lone Star against
Lacos and others (the "Securities Action") were dismissed with prejudice and the
parties to the Securities Action exchanged general releases among the parties
thereto and in favor of Lone Star's directors and officers as of September 23,
1992. In addition, Dwayne O. Andreas, Rex D. Cross and David J. Mahoney resigned
as directors and each was provided a general release from the Debtors.(40)
However, the Adversary Settlement expressly provides that a breach of the
settlement by any signatory shall result in the release and dismissal of the
Securities Action as to such signatory being rendered null and void. Moreover, a
breach of the Adversary Settlement by Lone Star shall result in the
nullification of the releases in favor of its then serving directors and
officers.
 
     b.   Class Action Shareholder Litigations
 
     Two class action shareholder lawsuits respecting the purchase of Lone Star
common stock are currently pending. Specifically, (i) in November, 1989, a
lawsuit (the "Cohn Action") was commenced by Maurice Cohn on behalf of persons
who purchased Lone Star common stock between February 8, 1988 and November 16,
1989 and (ii) in December, 1990, a lawsuit (the "Garbarino Action" and together
with the Cohn Action, collectively, the "Class Action Proceedings") was
commenced by Andrew Garbarino and Madeline Garbarino on behalf of persons who
purchased Lone Star common stock between November 16, 1989 and December 9, 1989.
 
     The Cohn Action is presently pending only against Lone Star and James E.
Stewart, formerly an officer and director (all other directors of the Company
originally named having been dismissed from the action) and the Garbarino Action
is presently pending only against Mr. Stewart (the Court having dismissed from
the case all other directors originally named, including six directors who left
Lone Star's Board, certain of Lone Star's present and former officers and Lone
Star's principal independent accountants). Both actions have been consolidated
in the United States District Court for the District of Connecticut (the
"Connecticut District Court"). The complaints in these shareholder actions
allege that the defendants issued a series of public statements which were
materially false and misleading which artificially inflated the market price of
the common stock of Lone Star in violation of the Securities Exchange Act of
1934. The complaints also assert claims of common law fraud and negligent
misrepresentation. The complaints seek, among other things, damages in an amount
allegedly sustained by plaintiffs and members of the purported classes. Proofs
of claim were filed against Lone Star on behalf of the Cohn and Garbarino
plaintiffs. Such claims are included as claims in Class 7 under the Plan (see
pages 90 to 91).
 
     As to Lone Star, the Cohn Action is stayed. However, the automatic stay was
lifted by the Bankruptcy Court to allow discovery to proceed in the consolidated
action. In August, 1992, a discovery schedule was established by agreement of
the parties. The discovery period, originally scheduled to end in April, 1993,
was extended through July, 1993 for the purpose of taking depositions. A
settlement magistrate was appointed by the Connecticut District Court for all
pre-trial purposes. On August 30, 1993 the plaintiffs filed a motion seeking
suspension of all pre-trial discovery. This motion states that the plaintiffs
have reached an agreement in principle with the defendant directors for
settlement of both the Cohn and Garbarino Actions.
 
     c.   Litigation with the Internal Revenue Service
 
     Lone Star and its affiliated domestic corporations constitute an affiliated
group as defined in Section 1504 of the Internal Revenue Code of 1986, as
amended (the "Revenue Code"). Lone Star and its affiliated domestic corporations
filed consolidated federal income tax returns for taxable years ending December
31,
 
- ---------------
 
40 The release granted pursuant to the Overall Settlement Agreement included a
   release of all claims allegedly held by Lone Star against Rex Cross as
   identified by the Cahill Report (see Section III(F)(1)(a) of this Disclosure
   Statement).
 
                                       63
<PAGE>   71
 
1985 and December 31, 1986 with the Internal Revenue Service in Andover,
Massachusetts (the "IRS"). On September 12, 1989, Lone Star timely filed a claim
for an income tax refund on form 1120X for $3,651,649 of taxes paid with respect
to its 1985 tax year (the "First Refund Claim"). Lone Star's First Refund Claim
was based upon the application of Temporary Treasury Regulation Section 1.58-9T
that applied to Lone Star's 1985 tax year, but was issued subsequent to the
filing of Lone Star's tax return for its 1985 tax year.
 
     In addition, on September 14, 1990, Lone Star timely filed a claim for
refund on Form 1120X for $511,641 of taxes paid with respect to its 1986 tax
year (the "Second Refund Claim"). The Second Refund Claim is based upon the same
regulation and grounds as the First Refund Claim.
 
     Despite repeated inquiries, for over six months after the First and Second
Refund Claims were filed, Lone Star did not receive any indication from the IRS
respecting the allowance or disallowance of its refund claims. Consequently, on
or about December 11, 1991, Lone Star commenced an adversary proceeding against
the IRS seeking a judgment ordering the IRS to pay to Lone Star the full amount
of the First and Second Refund Claims, plus all interest accrued thereon as
provided by law. The IRS submitted an answer to Lone Star's complaint and a
trial was scheduled for January 31, 1992. However, the trial was adjourned to
allow settlement discussions between the parties. Thereafter, the IRS agreed to
allow both of Lone Star's refund claims and, to date, Lone Star has received
approximately $6,000,000 (representing the full amount of the 1985 refund claim
plus interest). The 1986 refund claim is still being held by the IRS pending a
resolution of claims filed against Lone Star's estate by the United States
Government.
 
     d.   Litigation Respecting Sale of CACP Stock
 
     As described in Section III(F)(1)(f) above, pursuant to Bankruptcy Court
authorization, Lone Star sold its shares of stock in CACP, a wholly-owned
Argentine subsidiary, to Loma Negra for $38 million. Subsequent to this sale,
Lone Star learned that Compania Naviera Perez Companc, S.A.C.F.I.M.F.A. ("Perez
Companc"), the corporate parent of Invesora Patagonica S.A. ("Patagonica") and
the owner of the remaining 50% in CSM (who had previously submitted a bid to
purchase the CACP stock for $36 million) had secretly entered into an agreement
with Loma Negra, pursuant to which Perez Companc had agreed to sell its 50%
interest in CSM to Loma Negra for $55 million and drop out of the bidding.
 
     As a result, on November 20, 1992, Lone Star filed a lawsuit in the
Bankruptcy Court asserting that this collusive conduct (which Lone Star alleged
was fraudulently concealed from both it and the Bankruptcy Court) allowed Loma
Negra to purchase the CACP stock for $38 million, $17 million less than it paid
Perez Companc for an equivalent amount of CSM stock. Lone Star also alleged that
Patagonica breached the by-laws of CSM by failing to provide CACP (its partner)
the opportunity to purchase Patagonica's 50% interest in CSM prior to
consummating the sale of such interest to Loma Negra. In addition, Lone Star
alleged that Loma Negra and Perez Companc tortiously interfered with and induced
Patagonica to breach the CSM by-laws. Lone Star sought compensatory damages of
at least $17 million (plus costs, attorneys' fees and other expenses) and
punitive damages of at least $10 million.
 
     In early 1993, the defendants filed motions to dismiss Lone Star's
complaint and to stay discovery. Lone Star, in turn, filed a motion in
opposition to defendants' motion and a cross-motion for partial summary judgment
against the defendants. All motions were heard by the Bankruptcy Court on May
20, 1993. Thereafter, on June 7, 1993, the Bankruptcy Court rendered a written
decision resolving this lawsuit against the Debtors and in favor of the
defendants on all grounds.
 
     Lone Star has appealed this decision to the United States District Court
for the Southern District of New York. The major legal issues raised in this
appeal include, among others, whether there was collusive bidding among the
defendants in contravention of Section 363(n) of the Bankruptcy Code and whether
it was erroneous for the Bankruptcy Court to dismiss Lone Star's complaint prior
to the commencement of formal discovery. Lone Star's reply brief must be filed
with the District Court on or prior to October 27, 1993 and the Debtors intend
to continue to vigorously pursue this action. In addition, the District Court
has requested that the parties attempt to reach a settlement of the action. To
date, no significant settlement negotiations have
 
                                       64
<PAGE>   72
 
occurred. In any event, should the Debtors be successful in their appeal, it is
likely that their complaint would be reinstated and formal discovery would
ensue.(41)
 
     e.   Litigation with Rankin County Economic Development District
 
     Prior to the Filing Date, Lone Star acquired title to a certain parcel of
land located in the City of Brandon, Rankin County, Mississippi (the "Marquette
Property"). In 1989, Lone Star entered into a contract with the Rankin County
Economic Development District (the "District") whereby Lone Star agreed to sell,
and the District agreed to buy, the Marquette Property for $1,500,000. The
purchase price was to be paid in installments with a final payment of $412,500
due on November 6, 1992 (the "Final Payment"). Subsequently, the District
defaulted on its obligation to make the Final Payment.
 
     The Marquette Property was sold in 1989 to the District (a body politic
created by the Rankin County Board of Supervisors (the "Board")) "as is," and
Lone Star expressly made no representations or warranties as to the
environmental condition of the property. Both the District and Lone Star
acknowledged in the contract of sale that the Marquette Property might contain
environmental hazards and conditions. The contract authorized the District to
conduct any inspections, surveys, or tests of the Marquette Property it desired
and, if the District discovered any environmentally unacceptable conditions, it
could (without penalty, except for the cost of a survey) cancel the contract.
Further, the contract obligated the District to indemnify Lone Star from any
claims or liabilities thereafter associated with the environmental condition of
the Marquette Property.
 
     As a result of the District's default on the Final Payment, Lone Star
commenced an adversary proceeding in the Bankruptcy Court against the District
on several grounds including turnover, breach of contract, breach of a
promissory note and a claim for money due and owing. The District filed an
answer and asserted counterclaims and has also made a motion to withdraw the
Bankruptcy Court's reference and to transfer this adversary proceeding to the
United States District Court for the Southern District of Mississippi.
 
     In addition to the above action, on February 17, 1993, the Board commenced
a lawsuit in Mississippi seeking monetary damages against Lone Star for
environmental response costs in relation to the Marquette Property under CERCLA
(the "Mississippi Action"). Thereafter, the Debtors filed an adversary
proceeding in the Bankruptcy Court seeking to permanently enjoin the Board from
taking any further action against Lone Star in the Mississippi Action.
 
     Subsequently, the Board filed a motion in the Bankruptcy Court for an order
permitting it to file a late proof of claim with respect to the CERCLA claim
which is the subject of the Mississippi Action. In response to this motion, the
Debtors maintained that the Board could not meet the standard for showing
"excusable neglect" to be allowed to file a late claim and that allowing the
filing of a late claim would have a deleterious effect on the Debtors'
reorganization efforts. After hearings in March and April, 1993, on May 3, 1993,
the Bankruptcy Court issued a decision which denied the Board's request to file
a late proof of claim holding that the delay of the Board in seeking to file a
claim was inexcusable and that to allow the filing of such claim would have a
disruptive effect on the Debtors' reorganization efforts. On May 21, 1993, the
Bankruptcy Court signed an order denying the Board leave to file a late claim
and enjoining the continuation of the Mississippi Action. Thereafter, on June 1,
1993, the Board filed a Notice of Appeal to the United States District Court for
the Southern District of New York.
 
     Recently, in order to avoid further protracted litigation, cost or expense,
Lone Star, the Board and the District agreed to a settlement in principle
resolving all claims and controversies asserted in the aforementioned actions
and proceedings, subject to Bankruptcy Court approval. In essence, this
settlement provides for (i) the payment to Lone Star of $537,176.61,
representing the Final Payment due under the contract respecting the Marquette
Property, plus interest and a collection fee contemplated by the contract, and
(ii) a dismissal with prejudice of the various outstanding actions and
proceedings between the parties, and release,
 
- ---------------
 
41 In the event that the Debtors are ultimately successful in this action, any
   recoveries would be paid to NewCo to be used to satisfy the Asset Proceeds
   Notes. If additional funds remain after satisfaction of the Notes, such
   amount will be dividended to Reorganized Lone Star.
 
                                       65
<PAGE>   73
 
discharge and waiver of the claims asserted therein. The settlement also
contemplates that the terms and conditions of the contract with the District
(which would include the District's indemnification of Lone Star) shall survive
unless otherwise expressly provided for in the settlement. In addition, as part
of the settlement, the Board will agree to direct and control the investigation
and remediation of the Marquette Property without any cost or expense to Lone
Star.
 
H.  AVOIDANCE ACTIONS AND RELATED MATTERS
 
     Subsequent to the Filing Date, the Debtors, with assistance from their
professional advisors, examined their records and developed a comprehensive
system to identify payments made by the Debtors prior to the Filing Date which
potentially could be avoided as preferential and/or fraudulent transfers
pursuant to Sections 547 and 548 of the Bankruptcy Code. As a result, the
Debtors identified approximately ninety entities who received payments prior to
the Filing Date which, subject to a variety of potential defenses, could
possibly be avoided by the Debtors. In general, these entities were largely
financial institutions which had received payments made on account of long and
short term borrowings, employees who received certain employment related
payments (including, but not limited to, consulting fees, severance, and
bonuses) and consultants and other professionals who had received payments for
services rendered.
 
     Thereafter, the Debtors met and reviewed their findings with
representatives of the Creditors' Committee. Notwithstanding these findings, the
Debtors, in an effort to minimize administrative expenses of their estates,
determined not to formally commence potentially costly and time consuming
litigation with respect to the individual payments identified (except in certain
situations where commencement of actions was deemed appropriate) until such time
as it could be determined with a greater degree of certainty (i) whether, in
light of potential recoveries under a plan of reorganization, there would be
material benefits to the Debtors' estates from avoidance of such payments
inasmuch as any such recoveries would give rise to increased claims against the
Debtors' estates, and (ii) the likelihood of successfully recovering such
payments.
 
     However, despite this decision to delay the commencement of avoidance
actions, the Debtors were faced with a possible limitations period for the
commencement of such actions under Section 546(a) of the Bankruptcy Code.
Pursuant to this section, an action to avoid, among other things, preferential
transfers or fraudulent conveyances "may not be commenced after the earlier   
of--                                                                         
 
          (1) two years after the appointment of a trustee; or
 
          (2) the time the case is closed or dismissed."
 
11 U.S.C. sec.546(a). In light of recent case law, an argument could be made
that the two-year time period contained in Section 546(a) of the Bankruptcy Code
is equally applicable to debtors-in-possession from the filing of a Chapter 11
petition. The Debtors' two-year anniversaries occurred, respectively, on
December 10 and 21, 1992.
 
     As a result of this potential limitations period, in November, 1992, the
Debtors prepared and circulated among the parties identified as having received
potentially voidable transfers, a tolling stipulation which, among other things,
extended the Debtors' time to commence avoidance actions in the event the
Debtors were subject to the time limit contained in Section 546(a) of the
Bankruptcy Code until June 10, 1993 (as same may have been amended or
superseded, the "Tolling Stipulations"). Approximately 54 of such transferees
executed a Tolling Stipulation.
 
     However, with respect to certain transferees, the Debtors, in order to
preserve their rights, filed complaints prior to the expiration of the two-year
anniversary of these Chapter 11 cases seeking to, among other things, avoid and
recover the property transferred. Subsequent to the commencement of these
actions, the various defendants executed standstill agreements and, as a result,
these actions are stayed. At present, the Debtors are parties to the following
stayed preference actions:
 
     - Lone Star Industries, Inc. v. Aid Association for the Lutherans, Congress
Life Insurance Company, Connecticut Mutual Life Insurance Company, Regan & Co.,
First Trust Company, Home Life Insurance Company, Kentucky Central Life
Insurance Company, National Travelers Life Company, Pan American Life
 
                                       66
<PAGE>   74
 
Insurance Company, Pan American Assurance Company, Reserve Life Insurance
Company, State Mutual Life Assurance Company of America, SMA Life Assurance
Company, Sun Life Assurance Company of Canada and Tandem Insurance Group, Inc.,
Ad. Pro. No. 92-5443A (United States Bankruptcy Court, Southern District of New
York). By this action, Lone Star is seeking to avoid and recover as preferential
transfers, interest payments totaling $1,750,000 made on account of certain
8 3/4% promissory notes issued pursuant to a note purchase agreement dated March
26, 1987 (as amended).
 
     - Lone Star Industries, Inc. v. The Minnesota Mutual Life Insurance
Company, Royal Tandem Life Insurance Company, State Mutual Life Assurance
Company of America, SMA Life Assurance Company, Ad. Pro. No. 92-5444A (United
States Bankruptcy Court, Southern District of New York). By this action, Lone
Star is seeking to avoid and recover as preferential transfers, interest
payments in the amount of $633,750 made on account of certain 9 3/4% promissory
notes issued pursuant to a note purchase agreement dated May 3, 1988.
 
     - Lone Star Industries, Inc. v. Farmers Group, Inc. and Gibson, Dunn &
Crutcher, Ad. Pro. No. 92-5445A (United States Bankruptcy Court, Southern
District of New York). By this action, Lone Star is seeking a judgment declaring
that, in connection with its transfer of its Tarmac America, Inc. ("Tarmac")
preferred stock to Tarmac for $147,000,000, the defendants maliciously
interfered with such sale and made false misrepresentations to Tarmac in order
to reap an undeserved windfall from Lone Star. Lone Star alleges that such
actions resulted in fraudulent and voidable transfers. In addition, Lone Star is
seeking to avoid and recover as preferential transfers certain payments made to
such defendants in connection with Lone Star's transfer of the Tarmac preferred
stock. Finally, Lone Star is seeking compensatory damages or the imposition of a
constructive trust and punitive damages for tortious interference in business
relations and injurious falsehood. In total, Lone Star is seeking $745,956.03
(not including punitive damages).
 
     - Lone Star Industries, Inc. v. Morgan Guaranty Trust Company of New York,
et al., Ad. Pro. No. 92-5446A (United States Bankruptcy Court, Southern District
of New York). By this action, Lone Star is seeking to avoid and recover as
preferential transfers, certain principal and interest payments totaling
$120,879,149.81 paid to Morgan Guaranty Trust Company of New York, as agent,
pursuant to a certain credit agreement dated as of April 28, 1988 (as amended)
and a certain agreement to purchase receivables dated as of September 1, 1985
(as amended). For a further discussion of the agreement to purchase receivables
see Section II(B)(2) of this Disclosure Statement.
 
     - Lone Star Industries, Inc. v. The Prudential Insurance Company of
America, Ad. Pro. No. 92-5447A (United States Bankruptcy Court, Southern
District of New York). By this action, Lone Star seeking to avoid and recover as
a preferential transfer, an interest payment in the amount of $1,093,750 made on
account of certain 8 3/4% promissory notes issued pursuant to a note purchase
agreement dated March 26, 1987 (as amended).
 
     - Lone Star Industries, Inc. v. Tom Gunnewig, Ad. Pro. No. 93-5201A (United
States Bankruptcy Court, Southern District of New York). By this action, Lone
Star is seeking to avoid and recover as preferential transfers certain payments
totaling $192,861 paid pursuant to an employment contract buy-out agreement
dated October 2, 1990.
 
     Subsequently, with respect to the executed Tolling Stipulations, the
Debtors determined that many of the transferees which were parties to such
stipulations could assert viable defenses in the event the Debtors commenced
preference actions. Specifically, the Debtors determined that the transferees
with respect to interest payments on both long and short term borrowings and
payments to employees and professionals for services rendered and/or pursuant to
contractual obligations would likely be successful in asserting ordinary course
and other viable defenses set forth in the Bankruptcy Code. Accordingly, the
Debtors determined not to pursue many of these preference claims. However, with
respect to eighteen of the transferees who had previously entered into Tolling
Stipulations, the Debtors determined that further review of such pre-petition
transfers was warranted. Accordingly, in order to further toll their time to
commence avoidance actions through November 10, 1993, the Debtors entered into
additional Tolling Stipulations with the following eighteen (18) entities:
Commerzbank AG, NY Branch, The Bank of New York, Den Danske Bank, Salomon
Brothers Inc., Ford Motor Credit Company, Rogers & Wells, Wiss, Janney, Elstner
Associates, Inc.,
 
                                       67
<PAGE>   75
 
Professional Corporation of America, Inc., Morgan Lewis & Bockius, Coopers &
Lybrand, Brown & Caldwell, Brown, Rudnick, Freed & Gesmer, P.C., RMC LONESTAR,
Carmine J. Muratore, John J. Martin, Robert Hutton, Jerome Bennett, and Orrick,
Herrington & Sutcliffe.
 
     Since commencing the avoidance actions and entering into such
additional Tolling Stipulations, the Debtors continued to analyze and evaluate
the relevant pre-petition transfers, the potential for avoiding such transfers
(including possible defenses) and the conceivable benefits to be obtained by
their estates in light of the proposed recoveries under the Plan.(42)
Presently, the Debtors are continuing to review the relevant transfers and it
is uncertain whether the transfers at issue will be further pursued or whether
there will be any recoveries.
 
                         IV. THE PLAN OF REORGANIZATION
 
A.  INTRODUCTION
 
     This Disclosure Statement relates to the Plan proposed by the Debtors. The
Debtors are submitting the Plan to all classes of Claims and Stock Interests
which shall, for purposes of this Disclosure Statement, be deemed impaired by
the Plan, for their acceptance or rejection, prior to seeking Confirmation of
the Plan by the Bankruptcy Court. This Disclosure Statement is designed to
provide adequate information to enable each holder of a Claim and/or Stock
Interest to make an informed judgment as to whether to vote to accept or reject
the Plan. A copy of the Plan is attached as Exhibit "A" to this Disclosure
Statement.
 
B.  SUBSTANTIVE CONSOLIDATION
 
     Substantive consolidation is the merging of the assets and liabilities of
affiliated entities in a bankruptcy proceeding so that the combined assets and
liabilities are treated as though held and incurred by a single entity. The
consolidated assets create a single fund from which all claims against the
consolidated debtors are to be satisfied.
 
     The substantive consolidation of interrelated Chapter 11 cases has no
express statutory basis in the Bankruptcy Code. Rather, courts have found the
power to substantively consolidate interrelated debtors' assets in a bankruptcy
court's general equitable powers which are set forth in Section 105 of the
Bankruptcy Code. The two key factors which courts focus on in deciding the
question of substantive consolidation are: (i) whether creditors dealt with the
debtor entities as a single economic unit and did not rely on their separate
identities in extending credit, and (ii) whether the affairs of the debtors are
so entangled that the consolidation will benefit all creditors of the debtors'
estates. Within this framework, other factors which courts have looked to
include: (i) the presence or absence of consolidated financial statements; (ii)
the existence of inter-company guarantees or loans; (iii) the unity of interests
and ownership between the various corporate entities; (iv) the transfer of
assets without formal observance of corporate formalities; (v) the degree of
difficulty in segregating and ascertaining individual assets and liabilities;
(vi) the parent, its affiliates and the subsidiaries having common directors
and/or officers; (vii) the parent or its affiliates financing one another; and
(viii) the commingling of assets and business functions.
 
     The Debtors believe that substantive consolidation of the Debtors' estates
will facilitate confirmation of the Plan and that, consistent with the reasoning
described above, cause for substantive consolidation exists for the following
reasons:
 
- ---------------
 
42 Pursuant to Section 502(h) of the Bankruptcy Code, if the Debtors were
   successful in avoiding these transfers, each transferee would be granted an
   unsecured claim in the amount of its avoided transfer, which would increase
   the aggregate amount of claims against their estates.
 
                                       68
<PAGE>   76
 
     - Creditors Dealt with the Debtors as a Single Economic Unit and did not
       Rely on Separate Identities in Extending Credit
 
     In general, in making a determination respecting the extension of credit to
any particular Debtor entity, creditors dealt with the Debtors as a single
economic unit and did not rely on their separate corporate identities. Rather,
in extending credit, creditors did so based on Lone Star's credit. In
particular, Lone Star would provide creditors with Lone Star's consolidated
financial data rather than the entities' consolidated financial statements.
Thus, both trade and bank creditors relied on Lone Star's consolidated financial
soundness in making a determination as to the extension of credit. In addition,
with respect to certain significant debt, Lone Star guaranteed the debt of the
other Debtor entities.
 
     The foregoing conclusion is further supported by the fact that Lone Star,
and not the other Debtor entities, was clearly identified on substantially all
customer invoices regardless of which entity the creditor actually dealt with.
In making payments to vendors on account of such invoices, checks bearing Lone
Star's name or checks of a Debtor entity clearly identifying such entity as a
wholly-owned subsidiary of Lone Star were generally used.
 
     The Debtors' management also contemplated one economic unit. Specifically,
the Debtors' management consistently prepared all filings with the SEC and
reports for the Board of Directors on a consolidated basis. Additionally,
financial reporting has not been done on a specific legal entity basis, but
rather, pursuant to the geographic location of groups of entities within the
Lone Star group. Furthermore, Lone Star and the other Debtor entities had and
continue to have common officers and directors.
 
     Other factors which indicate a single economic unit as opposed to separate
entities include the fact that (i) Lone Star holds 100% of the outstanding stock
of all of the Debtor entities (with the exception of Lone Star Cement in which
it holds 99% of such stock), and (ii) that Lone Star maintains a centralized
accounting, management information systems, tax and treasury function at its
corporate headquarters which provides Lone Star and the other Debtors with the
greatest cost savings. Significantly, the costs of these centralized functions
are absorbed by Lone Star and not allocated among the other Debtor entities.
 
     - The Affairs of the Debtors are so Entangled That Consolidation Will
       Benefit All Creditors
 
     Pursuant to the Debtors' cash management system (see Section II(D) of this
Disclosure Statement), the cash receipts of all of the Debtor entities are
deposited and commingled into Concentration Accounts maintained by Lone Star. In
addition, creditors generally made payment checks payable to Lone Star rather
than the particular Debtor entity with which it had conducted business. Within
the framework of the cash management system, Lone Star provides working capital
and funds needed for capital projects to the various Debtor entities on an as
needed basis. Such funds are made available by wire transfer from Lone Star's
Concentration Accounts. Furthermore, disbursements are made either using Lone
Star's checks or checks which clearly identify Lone Star as the parent
corporation and are generally signed by a Lone Star corporate officer.
 
     Additionally, Lone Star does not maintain an accounting allocation among
the various Debtors for general corporate overhead costs of such entities.
Rather, the costs of these functions are entirely absorbed by Lone Star without
a corresponding allocation to the respective Debtors.
 
     Furthermore, an argument may be raised as to whether such intercompany
indebtedness should be properly classified as true indebtedness or equity. In
this regard, an analysis of the millions of dollars of intercompany debt would
be required. Certain factors which may be relevant in making such a
determination could include: (i) the capitalization of the particular Debtor
entities; (ii) the expectation of repayment; (iii) the availability of funding
from outside sources; and (iv) the existence of promissory notes or other debt
instruments.
 
     In light of the foregoing, the Debtors believe that it would be a very time
consuming and costly process to accurately analyze the intercompany indebtedness
and could conceivably cost the Debtors (and thus, their estates) millions of
dollars. Accordingly, any benefit to creditors which could be achieved by such
an undertaking would be substantially outweighed by the time and substantial
cost to the estates.
 
                                       69
<PAGE>   77
 
     Thus, as part of the Confirmation Order, the Debtors will seek to include,
among other things, the following provisions: (i) all intercompany Claims by and
among the Debtors will be eliminated; (ii) except as otherwise provided in the
Plan, all assets and all proceeds thereof and all liabilities of the Debtors
will be merged or treated as though they were merged; (iii) any obligation of
any Debtors and all guarantees thereof executed by any of the Debtors will be
deemed to be one obligation of the consolidated Debtors; (iv) any Claims filed
or to be filed in connection with any such obligation or guarantee will be
deemed one Claim against the consolidated Debtors; (v) each and every Claim
filed in the individual case of any of the Debtors will be deemed filed against
the consolidated Debtors in the consolidated case; and (vi) for purposes of
determining the availability of the right of set-off under Section 553 of the
Bankruptcy Code, the Debtors shall be treated as one entity so that, subject to
the other provisions of Section 553 of the Bankruptcy Code, debts due to any of
the Debtors may be set off against the debts of any of the Debtors. In addition,
except as expressly provided in the Plan, the Debtors shall continue to maintain
their separate corporate existences for all purposes other than the treatment of
Claims under the Plan.
 
C.   DEVELOPMENT OF THE PLAN
 
     As a result of the post-petition efforts described above, the Debtors
focused their efforts on finalizing a business plan which would form the basis
of a plan of reorganization. Accordingly, the Debtors developed and analyzed
various preliminary scenarios respecting a plan of reorganization.
 
     However, in light of the size and magnitude of the Debtors' Chapter 11
cases, the Debtors determined that in order to ensure that maximum values would
be achieved for the benefit of the Debtors' creditors and shareholders, it was
necessary to retain a financial advisor to assist the Debtors in their efforts
to promulgate a plan of reorganization. In this respect, on or about August 12,
1992, the Bankruptcy Court entered an order authorizing the Debtors to retain
Blackstone as their financial advisor to, among other things, review, evaluate
and prepare financial data including data relating to the development and
financial foundation of a plan of reorganization and consult with the Debtors as
to all financial matters relating to the Debtors' Chapter 11 cases and a plan of
reorganization.
 
     1.   CORE VS. NON-CORE ASSETS
 
As part of their efforts to promulgate a plan of reorganization and to
successfully emerge from these Chapter 11 proceedings, the Debtors developed a
business plan pursuant to which the Debtors would reorganize their operations
around their core domestic cement, construction aggregates and ready-mixed
operations. In developing their business plan, the Debtors took into account the
fact that cement shipments are both highly seasonal and cyclical and that during
1991 domestic cement consumption was at its lowest level since the early
1980's.(43) However, industry experts are forecasting significantly increased
demand for cement shipments in the future as economic prospects improve and the
United States rebuilds its infrastructure.(44) Further, projections provided by
the Portland Cement Association (the "PCA") in November, 1992 (which reflected a
more conservative forecast than previous projections which were initially used
by the Debtors in developing their business plan) suggest that the cement
consumption cycle reached its lowest point in 1991 and is expected to rebound
through 1997. In developing their business plan, the Debtors have assumed that
the cement consumption cycle will generally follow PCA forecasts. In general,
the Debtors are projecting higher sales and production volumes consistent with
projected consumption growth resulting in significantly improved profit margins.
This projected increase in demand, sales and production volumes has been
included in the Debtors' financial projections upon which the values contained
in the Plan are based. Specifically, in light of the projected increased demand,
the Debtors' projections assume that Reorganized Lone Star will
 
- ---------------
 
43 The cyclical nature of cement shipments is reflected in an industry-wide
   survey for the past 10 years published by the Portland Cement Association
   which are set forth in the financial projections annexed hereto as Exhibit
   "F." The Debtors' cement shipments have generally followed the PCA survey. In
   addition, cement shipments are seasonal because construction activity
   generally increases in the summer months and early fall.
 
44 Among other things, the Intermodel Surface Transportation Efficiency Act of
   1991 provides for approximately $150 billion in infrastructure spending over
   the next five years.
 
                                       70
<PAGE>   78
 
operate at substantially full capacity. In addition, the Debtors' financial
projections assume higher pricing due to increased demand for cement (see
Exhibit "F" annexed hereto for a detailed discussion of the Debtors' financial
projections and the assumptions upon which they are based).
 
     A reorganization around the Debtors' core domestic operations was based on
the Debtors' determination, in the exercise of their business judgment, that
emerging from Chapter 11 as a vertically integrated domestic cement, aggregate
and ready-mixed company would maximize value for their estates and provide a
strong competitive posture. Furthermore, the Debtors determined that their
interests in substantially all joint ventures and operations outside of the
United States, as well as certain domestic operations, either required extensive
capital investments or did not generate a sufficient return to justify a
continued interest in such operations. The Debtors also concluded that continued
participation in most joint ventures would detract from their efforts to
concentrate on core domestic operations because, with respect to most of these
joint ventures, the Debtors had a minimal role in management and day-to-day
operations. As a result, the Debtors determined to divest themselves of their
interests in these joint ventures and other operations and to dispose of such
interests and operations. If such dispositions were not possible with respect to
non-joint venture operations as going concerns, the Debtors determined to
discontinue such operations and dispose of the assets thereof.
 
     As stated above, after Confirmation, Reorganized Lone Star will be a
vertically integrated cement, construction aggregates and ready-mixed concrete
company. Reorganized Lone Star's operations will be based primarily in the
Middle and Southwestern United States and on the East Coast and Reorganized Lone
Star should have a strong competitive posture in the markets it will continue to
serve. In addition, Reorganized Lone Star's operations will include facilities
containing sufficient raw materials to enable such facility to operate
efficiently and cost effectively. In addition, the Debtors' business plan
contemplates that the Debtors shall obtain a working capital facility secured by
inventory or receivables in order to ensure adequate funding is available to
meet operational and other needs.
 
     Set forth below is a brief description of the Debtors' primary Core Assets
which will form the basis of Reorganized Lone Star as well as a description of
the primary Non-Core Assets which will be transferred to NewCo. In addition,
following such descriptions is a summary of the more significant anticipated
capital expenditures and labor relations issues related to the assets. The
capital expenditures described are contemplated by the financial projections
annexed hereto as Exhibit "F."
 
     a.   Description of Core Assets
 
     The following cement, construction aggregates, and ready-mixed concrete
operations are the principal Core Assets which will form the basis of
Reorganized Lone Star's operations following Confirmation. The Debtors believe
that, generally, these sites have sufficient raw material reserves to sustain
their operations.
 
     - Greencastle Complex
 
     Lone Star operates a cement complex in Greencastle, Indiana (the
"Greencastle Complex"). At the Greencastle Complex, Lone Star owns and operates
a cement plant with an annual rated capacity of 752,000 tons of cement. Lone
Star also produces Pyrament(R) cement at the Greencastle Complex. The
Greencastle Complex serves the cement markets in Illinois, Indiana, Northern
Kentucky, Wisconsin and Southern Michigan. A substantial amount of the minerals
used at the Greencastle Complex for the production of cement are subject to the
Production Payment discussed in Section II(B)(5) of this Disclosure Statement.
 
     During the past few years, Lone Star has implemented a program of burning
waste fuels at the Greencastle Complex which has resulted in a substantial
savings to Lone Star from decreased coal consumption. In addition, the use of
waste fuels has also provided substantial savings for the Debtors in that they
pay less to have such waste materials removed from the Greencastle Complex. (See
page 36 for a discussion of the benefits of waste fuel and uncertainties
surrounding future use thereof.)
 
                                       71
<PAGE>   79
 
     - Maryneal Complex
 
     Lone Star operates a cement complex in Maryneal, Texas (the "Maryneal
Complex"). At the Maryneal Complex, Lone Star owns and operates a cement plant
with an annual rated capacity of 520,000 tons of cement. The Maryneal Complex
primarily produces Portland cement. It also produces cement which is generally
used in the construction of oil wells. The Maryneal Complex principally serves
the cement markets in Central and Western Texas and Eastern New Mexico.
 
     - Cape Girardeau Complex
 
     Lone Star operates a cement complex in Cape Girardeau, Missouri (the "Cape
Complex"). At the Cape Complex, Lone Star owns and operates a cement plant with
an annual rated capacity of 1,200,000 tons of cement.
 
     The Cape Complex cement plant is a modern facility. Lone Star recently
completed a kiln gas recovery construction project at the Cape Complex which
involved the modification of the cement plant in order to recycle and neutralize
gases produced by the plant's cement kiln and clinker cooler. The modifications
are designed to increase plant capacity, reduce fuel consumption and reduce
costs.
 
     The Cape Complex has key distribution terminals in Memphis, Nashville, St.
Louis and New Orleans and primarily serves the cement market in Missouri,
Tennessee, Northern Kentucky, Louisiana, Northern and Central Mississippi and
Eastern Arkansas. The Cape Complex also utilizes a barge fleet for water
distribution. Lone Star is burning waste fuels at the Cape Complex in order to
further reduce costs and increase revenues. (See page 36 for a discussion of the
benefits of waste fuel and uncertainties surrounding future use thereof).
 
     - Oglesby Complex
 
     Lone Star operates a cement complex in Oglesby, Illinois (the "Oglesby
Complex") at which it owns and operates a cement plant with an annual rated
capacity of 600,000 tons of cement.
 
     The Oglesby Complex primarily serves cement markets throughout Illinois and
Wisconsin. Recently, Lone Star completed a modernization project of the raw and
finish mill system at the Oglesby Complex. Specifically, this project involved
the replacement of certain old grinding mills with a new modern roller mill
system.
 
     - Pryor Complex
 
     Lone Star operates a cement complex in Pryor, Oklahoma (the "Pryor
Complex"). At the Pryor Complex, Lone Star owns and operates a cement plant with
an annual rated cement capacity of 725,000 tons. The Pryor Complex primarily
produces Portland cement as well as cement which is used in the construction of
oil wells. The Pryor Complex primarily serves the cement market in Oklahoma,
Texas and Kansas. A substantial amount of the minerals used at the Pryor Complex
for the production of cement are subject to the Production Payment note
discussed in Section II(B)(5) of this Disclosure Statement.
 
     - New York Trap Rock Corporation
 
     Trap Rock is a wholly-owned subsidiary of Lone Star whose primary
operations include the production and distribution of crushed stone from
quarries located in or near West Nyack and Clinton Point, New York. The Debtors
believe that Trap Rock, with two plants north of New York City and over 500
million tons of reserves, is an important source of aggregates for the New York
metropolitan market including parts of New Jersey and Connecticut. While
operating results have been unsatisfactory in recent years principally due to a
very weak construction market, longer term prospects are encouraging. Demand for
aggregates is expected to increase as the construction industry improves. Plans
to improve profitability include an expenditure of approximately $20 million to
build a new aggregates plant to replace the old, high cost West Nyack facility,
and approximately $5 million to purchase leased barges which are used to
transport aggregates on the Hudson River from Clinton Point to customers in the
New York metropolitan market.
 
                                       72
<PAGE>   80
 
     - Construction Aggregates Limited
 
     Construction Aggregates Limited ("Construction Aggregates") is a
wholly-owned subsidiary of Lone Star which operates a stone quarry and plant in
Mulgrave, Nova Scotia. The stone produced by Construction Aggregates is supplied
to Trap Rock and sold to customers in local Canadian markets, the East and Gulf
Coasts of the United States and the Caribbean.
 
     - Construction Materials Co.
 
     Construction Materials operates a ready-mixed concrete and construction
aggregates business serving the greater Peoria, Illinois construction market.
Lone Star, through Construction Materials, owns and operates three ready-mixed
concrete plants and transports the product from these plants through a fleet of
approximately 37 ready-mixed concrete trucks.
 
     - I.C. Materials, Inc.
 
     IC Materials operates a ready-mixed concrete, concrete block and building
material products business serving the Central and Southern Illinois
construction markets. Lone Star, through IC Materials, owns and operates three
ready-mixed concrete plants, forty-six ready-mixed concrete trucks, two concrete
block plants and three construction material warehouses and outlets.
 
     - Memphis Ready-Mixed Division
 
     Lone Star's Memphis Ready-Mixed Division operates a ready-mixed concrete
business serving the Memphis, Tennessee area, Shelby and Fayette counties in
Tennessee and Hernando County in Mississippi. This division is comprised of 12
ready-mixed concrete plants and delivers its products to customers through a
fleet of 88 ready-mixed concrete trucks.
 
     - Kosmos Cement Company
 
     Kosmos Cement Company is a Kentucky partnership which is 25% owned by Lone
Star and 75% owned by Southdown, Inc. Kosmos Cement Company operates a cement
plant in Kosmosdale, Kentucky, 15 miles south of Louisville, and another cement
plant in Pittsburgh, Pennsylvania. The Kosmosdale cement plant has an annual
rated cement capacity of 650,000 tons. The Kosmosdale plant serves Kentucky,
Southern Ohio, West Virginia and parts of Tennessee. The Pittsburgh cement plant
has an annual rated cement capacity of 370,000 tons. Kosmos Cement Company has
cement distribution terminals in South Charleston, West Virginia; Cincinnati,
Ohio; Evansville, Indiana; Indianapolis, Indiana; and Huntington, West Virginia.
 
     - Pennsuco Cement Plant
 
     Lone Star owns a cement plant located in Medley, Florida (the "Pennsuco
Plant"). Lone Star's investment is limited solely to the fixed assets of the
plant. Lone Star has no investment in the land upon which the plant is situated
or the mobile equipment located at the plant.
 
     The Pennsuco Plant is one of two cement plants in south Florida. The
Pennsuco Plant has three kilns and has an annual rated capacity of 1,200,000
tons of cement. The Pennsuco Plant has a major railroad siding and ships cement
up the entire east coast of Florida.
 
     The Pennsuco Plant is situated on land owned by a third party. The land is
leased to Lone Star for $8,000 per year until December 31, 2012 and the lease
may be extended at Lone Star's option for an additional twenty-five years. The
land is subleased by Lone Star back to the third party. The Pennsuco Plant is
leased to the same third party until 2007 at an annual rent of $2,500,000. At
the expiration of this lease, the third party has the option to purchase this
plant at fair market value.
 
                                       73
<PAGE>   81
 
     b.   Description of Non-Core Assets to be Transferred to NewCo
 
     The Debtors' Non-Core Assets primarily consist of the Debtors' interests
in: (i) the RMC LONESTAR partnership, a cement plant in Santa Cruz, California
and certain promissory notes executed by RMC LONESTAR, (ii) Lone Star-Falcon,
(iii) Hawaiian Cement, (iv) a cement plant located in Nazareth, Pennsylvania,
(v) the Riedel Note and (vi) certain surplus real estate. Also to be included
among the Non-Core Assets to be transferred to NewCo are miscellaneous
litigation settlements and insurance claims. These include the Debtors' interest
in any and all actions to avoid and recover transfers of property (see Section
III(H)), litigation respecting the sale of the CACP stock (see Section
III(G)(4)(d)), litigation with Lafarge Corp. respecting cement used in allegedly
defective concrete railroad ties (see Section III(G)(3)(a)), and litigation with
Liberty Mutual and certain other insurance companies related to the Cross-Tie
Litigation (see Section III(G)(3)(b)). Minimum target prices will not be set in
connection with the disposition of the Non-Core Assets.(45) However, notice of
each proposed asset sale will be provided to any post-Confirmation committee.
The Debtors estimate that dispositions of the Non-Core Assets will generate
gross proceeds of between approximately $118,000,000 and $180,000,000.(46)
 
     The estimated aggregate values to be derived from the disposition of
Non-Core Assets were determined by the Debtors' management after consultation
with Blackstone and SCI and are based upon appraisals (where available), a
discounted cash flow analysis of the projected cash flows of such Non-Core
Assets, as well as examination and analysis of other factors relevant to value,
such as benefits or impediments contained in agreements, if any, respecting such
assets. Furthermore, the Debtors anticipate that it will take up to twenty-four
months following the Effective Date for such dispositions to be completed. Such
period will afford the Debtors a reasonable opportunity to take advantage of any
upswing in market conditions rather than forcing immediate dispositions, and
should provide sufficient time to effectively market such assets, allow
interested parties to conduct due diligence investigations, and to negotiate the
terms of any proposal. Thus, this twenty-four month period is an estimate of the
amount of time which the Debtors, in their business judgment, believe will be
necessary to maximize the value for such Non-Core Assets, although dispositions
of such Non-Core Assets could be completed before or after such period. The
timing for the disposition of each particular asset as discussed in the
paragraphs below was estimated by the Debtors' management based on experience,
market conditions and past and present marketing efforts. The assumptions with
respect to the timing of such dispositions were taken into account in connection
with the estimated recoveries to holders of Allowed Unsecured Claims.
 
     Both the estimated timing of such dispositions and the estimated values to
be derived therefrom are reflected in the terms of the Asset Proceeds Note
Indenture and Reorganized Lone Star Guarantee (see Section IV(E)(5) for a
discussion of these documents) which govern repayment of the Asset Proceeds
Notes to be issued to holders of Allowed Unsecured Claims.
 
     - RMC LONESTAR and Santa Cruz Cement Plant
 
     RMC LONESTAR is a California partnership which is 50% owned by Lone Star
and 50% owned by a United States subsidiary of RMC Group, p.1.c., a British
corporation. RMC LONESTAR is one of the largest vertically integrated cement,
aggregate and concrete producers in California. RMC LONESTAR produces and
markets cement, sand, gravel, crushed stone, asphalt and ready-mixed concrete.
 
     RMC LONESTAR's operations include production of sand, gravel and crushed
stone in Northern California. Ready-mixed concrete is produced at twenty-nine
(29) plants in the San Francisco Bay area and the central valley from Sacramento
to Palmdale. The ready-mixed cement operations also include a fleet of
 
- ---------------
 
45 The establishment and disclosure of definitive minimum target prices could
   create a ceiling on the prices offered and received for such assets. However,
   the existence of the Reorganized Lone Star Guarantee and the bonus plan
   respecting the disposition of the Non-Core Assets provide sufficient
   incentive to ensure that the values obtained for such assets will be
   maximized.
 
46 In the event any of the Non-Core Assets are disposed of prior to
   Confirmation, the net proceeds therefrom shall reduce, on a dollar for dollar
   basis, the principal amount of the Asset Proceeds Notes and the level of the
   Reorganized Lone Star Guarantee pursuant to their terms.
 
                                       74
<PAGE>   82
 
approximately 394 ready-mixed concrete trucks. RMC LONESTAR also operates a
cement plant in Santa Cruz, California (the "Santa Cruz Plant") which is owned
by Lone Star and leased to RMC LONESTAR pursuant to a 20-year lease agreement
dated as of December 31, 1987, with an option for an additional five years (the
"Santa Cruz Lease"). The land underlying this cement plant is owned by RMC
LONESTAR.
 
     Pursuant to the terms of the Santa Cruz Lease, commencing as of January 1,
1992, Lone Star receives $10,048,000 from RMC LONESTAR in annual rent for the
next five years and, thereafter, $8,548,000 per annum throughout the remainder
of the lease term. For the five year option period, the annual rent is
approximately $3,548,000.
 
     RMC LONESTAR finances its operations through a $110,000,000 term credit
agreement (the "Credit Facility"). Approximately $48,000,000 was owed under the
Credit Facility as of August 31, 1993. RMC LONESTAR also maintains a $35,000,000
working capital facility (the "Working Capital Facility") which provides for the
advancement of funds and issuance of letters of credit as required by RMC
LONESTAR's operations. Both the Credit Facility and the Working Capital Facility
are guaranteed by an affiliate of the other partner in the joint venture. The
Working Capital Facility is scheduled to expire on December 31, 1994 and as of
August 31, 1993 the amount owed under this facility was approximately
$35,000,000.
 
     In 1981, Lone Star transferred the federal income tax benefits on a
substantial portion of the assets making up the Santa Cruz Plant under "Safe
Harbor Lease" provisions of the Internal Revenue Code, as in effect on November
9, 1981 to a third party ("Tax Lessor"). The Tax Lessor has filed a notice with
the Bankruptcy Court as prescribed by Treasury Regulations causing any buyer of
the Santa Cruz Plant to take the property subject to such Safe Harbor Lease
provisions. These provisions will cause a delay in income tax deductions by the
buyer and such restrictions may reflect themselves in the purchase price
ultimately realized on the sale of this facility.
 
     In addition, subsequent to the Filing Date, it became apparent to Lone Star
and its partner that, at various intervals, RMC LONESTAR would require
additional short-term financing to sustain operations and that they were the
only available source of such financing. Consequently, Lone Star (after
consultation with the Committees) and its partner caused advances of
approximately $7,500,000 each to RMC LONESTAR during 1991 and 1992, evidenced by
unsecured promissory notes bearing interest at the rate of LIBOR +  1/2% per
annum. Approximately $8,000,000 of such advances were repaid by RMC LONESTAR
leaving an outstanding balance to both partners of approximately $3,500,000
each. During January, 1993, Lone Star (with Bankruptcy Court approval) made
additional advances and agreed to defer approximately $4,200,000 million in
rental payments due from RMC LONESTAR under the Santa Cruz Lease for the period
February 1, 1993 to June 30, 1993, and its partner caused $4,200,000 in advances
to be made to RMC LONESTAR for such period. Thereafter, Lone Star (with
Bankruptcy Court approval) agreed to defer an additional approximately
$1,660,000 in rental payments due under the Santa Cruz Lease for the period July
1, 1993 to August 31, 1993, and its partner caused approximately $1,660,000 in
advances to be made to RMC LONESTAR for such period. Such deferrals and advances
were evidenced by unsecured promissory notes bearing interest at the rate of
LIBOR +  1/2% per annum (the "RMC LONESTAR Notes") which notes shall also be
transferred to NewCo.
 
     The Debtors anticipate that a disposition of their interests in RMC
LONESTAR and the Santa Cruz Plant will be consummated in 1995.
 
     - Lone Star-Falcon
 
     Lone Star-Falcon ("LSF") is a Texas partnership between Lone Star (which
owns a 50% interest), Falcon Investments, Inc. (which owns a 49% interest), and
InterRedec, Inc. (which owns a 1% interest). LSF owns cement terminals located
in Houston and Corpus Christi, Texas which are leased to Gulf Coast Portland
Cement ("Gulf Coast"). The Houston cement terminal is located on ten acres of
land along the Houston ship channel and has an annual rated capacity of
1,000,000 tons of cement. Pursuant to the lease with Gulf Coast, LSF will
receive annual rental payments of $1,500,000 through the lease term which
expires in December, 1994. Upon termination, Gulf Coast is obligated to purchase
the Houston and Corpus Christi cement terminals for $18,000,000 subject to
compliance with the filing requirements of the Hart-Scott-Rodino Anti-
 
                                       75
<PAGE>   83
 
Trust Improvements Act of 1976. The Corpus Christi terminal is located on
approximately 2.2 acres of land which is leased from a local authority. The
Debtors anticipate that the proceeds from Gulf Coast's purchase of the Houston
and Corpus Christi cement terminals upon termination of the lease will be
received in 1995.
 
     - Hawaiian Cement
 
     Hawaiian Cement is a Hawaiian partnership which is owned equally by Lone
Star and Adelaide Brighton Cement Holdings Ltd., an Australian corporation.
Adelaide Brighton has the right to supply the partnership with any cement or
clinker imported by the partnership (at market prices). Hawaiian Cement supplies
cement to each of the six major islands in the state of Hawaii. Hawaiian Cement
also produces and sells aggregates on the islands of Oahu and Maui and
ready-mixed concrete on the islands of Oahu, Maui and Hawaii. Hawaiian Cement's
assets include one operating cement plant, one grinding facility, six
ready-mixed concrete plants, and two aggregates quarries. The Debtors anticipate
that a disposition of their interests in Hawaiian Cement will be consummated
during 1994.
 
     - Nazareth Cement Plant
 
     Lone Star owns a cement plant located in Nazareth, Pennsylvania (the
"Nazareth Plant") in the Lehigh Valley. Lone Star also owns the land on which
this plant is situated. The Nazareth Plant was built in the late 1800's and has
been modernized several times. It presently has an annual rated capacity of
658,000 tons per year. In order for the Nazareth Plant to remain competitive,
the Debtors would have to make substantial capital improvements at significant
expense. Consequently, the Debtors determined that the Nazareth Plant should be
sold. The Nazareth Plant has significant excess finished grinding capacity. The
Debtors anticipate that a disposition of the plant will be consummated during
1994.
 
     - The Riedel Note
 
     Pursuant to a purchase agreement dated March 3, 1987, by and among Lone
Star, as buyer, Riedel International, Inc. ("International"), as seller, Riedel
Resources, Inc. and Arthur A. Riedel ("Riedel"), Lone Star agreed to purchase
all of the assets of International, except for certain land and improvements
thereon which were to be purchased by Riedel. In consideration of Riedel's
commitment to purchase certain assets of International, Lone Star loaned him
$10,000,000. In connection with this loan, on or about April 8, 1987, Riedel
executed and delivered a $10,000,000 promissory note (the "Riedel Note") payable
to Lone Star. The Riedel Note is secured by certain real property located in
Oregon and Washington (the "Secured Properties"). These properties are covered
by a deed of trust dated April 7, 1987, between Riedel, as grantor, Ticor Title
Insurance Company, as trustee, and Lone Star, as beneficiary.
 
     As of the Filing Date, the outstanding principal balance of the Riedel
Note, plus accrued and unpaid interest thereon, was $10,027,123.29. Subsequent
to the Filing Date, Riedel sold two of the Secured Properties and applied the
net proceeds therefrom to reduce both interest and principal under the Riedel
Note. No interest payments have been made on the Riedel Note since March, 1992,
and the note is in default. The Debtors have undertaken a comprehensive review
of the Secured Properties and are considering the best course of action,
including the commencement of a lawsuit against Riedel for collection of the
outstanding balance of the Riedel Note. As of June 1, 1993, the outstanding
principal balance of the Riedel Note (which remains secured by two parcels of
real estate), plus accrued and unpaid interest thereon, was approximately
$7,000,000. The projected aggregate proceeds from Non-Core Asset dispositions by
NewCo include an estimate of the projected recovery with respect to the Riedel
Note. The Debtors anticipate that a disposition of their interests in the Riedel
Note will occur by 1995.
 
     - Surplus Real Property
 
     The Debtors own various parcels of unimproved real property which they have
determined are not required for their operations (the "Surplus Real Property").
The Surplus Real Property is comprised of the following sites: 127 acres located
in Irving, Texas (Las Colinas); 182 acres in Fort Worth, Texas (which is subject
to a lien of Dr. Richard C. Schaffer, see page 85); 515 acres in Dallas, Texas
(Echo Valley); 7 acres in
 
                                       76
<PAGE>   84
 
North Miami, Florida; 16 acres in Tampa, Florida; 44 acres in Dania, Florida
(currently the subject of litigation, see pages 48 to 49); 126 acres in Ayer,
Massachusetts (Stoney Brook); 561 acres in Groton, Massachusetts; 190 acres in
Littleton, Massachusetts (San-Vel Prestress building) (currently under contract
for $1,265,000); 255 acres in Henrico County, Virginia (currently under contract
for $320,000); 147 acres in Colonial Heights, Virginia; 90 acres in Prince
Georges County, Maryland; 9 acres in Dallas, Texas (Lone Star Park) (4 of which
have been sold); 13 acres in Houston, Texas (Pole Plant Site) (currently under
contract for $500,000); 13 acres in New Orleans, Louisiana; 170 acres in Ayer,
Massachusetts (Long Pond); and 8 acres in Minneapolis, Minnesota (Eagan)
(currently under contract for $160,000).
 
     Many of these parcels were originally acquired for limestone or aggregate
reserves, but are no longer required in Lone Star's core businesses. Other
surplus parcels include (i) sites of ready-mixed cement facilities or lumber
yards which are no longer active and (ii) certain parcels that had been acquired
by the Debtors for investment purposes. The Debtors anticipate that dispositions
of all of their Surplus Real Property will be completed by the end of 1995.
 
     c.   Capital Expenditures Related to Core Assets
 
     As part of the financial projections annexed hereto as Exhibit "F," Lone
Star included the capital expenditures necessary, in its judgment, to maintain
the facilities of Reorganized Lone Star in good working condition (see Section
IV(C)(1)(a) for a discussion of the primary Core Assets of Reorganized Lone
Star). In addition to routine capital expenditures, Lone Star has included
provisions for four large capital projects that, in Lone Star's judgment, will
need to be completed during the years 1994-1997. These projects are as follows:
(1) modification/replacement of the precipitator at the Greencastle plant, at a
cost of approximately $6,000,000, in order to increase production volumes and to
remain in compliance with environmental regulations regarding air emissions; (2)
replacement in 1996 of the clinker cooler at the Pryor cement plant, at a cost
of approximately $5,000,000, to remain in compliance with air emission
regulations; (3) exercise by Trap Rock of its purchase option to acquire the
leased barges used to transport crushed stone from the Clinton Point plant to
the metropolitan New York area for approximately $5,000,000, resulting in
significant savings; and (4) replacement in 1994/1995 of the existing plant at
West Nyack by a modern low cost facility which will make West Nyack more cost
competitive and will have the capability to produce products not currently
produced. The cost of the new facility is expected to be $20,000,000 and Lone
Star is investigating financing methods for this project.
 
     d.   Labor Relations Issues Related to Core and Non-Core Assets
 
     Lone Star and its Affiliated Companies had at year-end 1992 approximately
1,500 domestic employees of whom 1,000 were members of various labor unions. The
hourly employees at Lone Star's cement plants and certain of its terminals are
represented by three unions. The International Brotherhood of Boilermakers
represents the hourly employees at Lone Star's Greencastle, Indiana; Oglesby,
Illinois; Pryor, Oklahoma; Milwaukee, Wisconsin; and Bonner Springs, Kansas
facilities. Negotiations with this union recently resulted in a new three-year
labor contract. The United Paperworkers International Union represents hourly
employees at Lone Star's cement plants in Nazareth, Pennsylvania and Cape
Girardeau, Missouri, as well as its alternative fuels operations in Nashville,
Tennessee; Paducah, Kentucky; and Brandon, Mississippi. A labor contract for the
Nazareth employees was recently renewed for an additional three years.
Negotiations are currently under way for new labor agreements with the
paperworkers' unions for the remaining hourly employees. The United Steelworkers
of America represents the hourly employees at Lone Star's Maryneal, Texas;
Dallas; Texas; and Memphis, Tennessee cement facilities. The labor agreements
covering the employees at the Maryneal, Texas and Dallas, Texas facilities will
be coming up for renewal within the next year, while a new three-year agreement
has recently been reached with the union representing the Memphis, Tennessee
facility hourly employees.
 
     Three year agreements for the hourly employees at Trap Rock's West Nyack
and Clinton Point aggregates facilities were entered into earlier this year with
the International Brotherhood of Teamsters, Operating Engineers and Laborers
Unions. A new three year agreement was also negotiated with the union who
represents the hourly employees at Construction Aggregates Ltd. in Nova Scotia,
Canada. Employees at
 
                                       77
<PAGE>   85
 
the other Lone Star ready-mixed concrete and aggregate operations are
represented by various unions. Only a few labor agreements with these unions are
scheduled to expire in the near term.
 
     There have been no labor disruptions at any of Lone Star's facilities
during 1992, nor have there been any during 1993. In addition, in recent rounds
of collective bargaining, Lone Star has been able to secure concessions from the
unions in several areas, including retirees. For example:
 
     (a) In Lone Star's 1992-1995 contract negotiations with the United
Paperworkers International Union, representing its Nazareth, Pennsylvania cement
plant hourly employees, Lone Star secured a concession providing that the
insurance and health agreements applicable to all post-petition and future
hourly retirees would be appropriately modified pursuant to the outcome of Lone
Star's current efforts pursuant to Section 1114 of the Bankruptcy Code with
respect to pre-petition hourly retirees.
 
     (b) In Lone Star's 1993-1996 contract negotiations with the International
Brotherhood of Boilermakers, representing hourly employees, at Lone Star's
Greencastle, Indiana, Oglesby, Illinois and Pryor, Oklahoma cement plants and
its Milwaukee, Wisconsin and Bonner Springs, Kansas cement terminals, Lone Star
negotiated annual increases in employee contributions toward medical insurance
equal to $.11, $.05 and $.05 per hour respectively, in the 1st, 2nd and 3rd
years of the contract; a $20,000 annual ($50,000 lifetime) aggregate limitation
on payments for in-hospital treatment of mental and nervous disorders and
alcohol and drug abuse related problems; a pre-admission certification program
for all non-emergency outpatient surgical procedures performed in a setting or
facility outside a doctor's office; and starting April 1, 1993, pre-age 65
retiree contributions to be the same as active employees, with age 65 and over
retiree contributions subject to further increase tied to medical inflation,
plus 5%;
 
     (c) In Lone Star's negotiations regarding a three-year agreement with the
three unions representing the hourly employees at its Trap Rock subsidiary, Lone
Star was able to secure "plant disposition" language suspending the eligibility
of retirees for retiree insurance in the event of their re-employment at the
employees' facility following its sale, lease or other disposition; a "freezing"
of Medicare Part B reimbursement at the level in effect at the beginning of next
year; a $20,000 annual ($50,000 lifetime) aggregate limitation on payments for
in-hospital treatment of mental and nervous disorders and alcohol and drug abuse
related programs; and a pre-admission certification program on a wide range of
medical services, including non-emergency outpatient surgical procedures
performed in a setting or facility outside a doctor's office, with a
reimbursement penalty for non-compliance effective in the second year of the
arrangement.
 
     2.   POTENTIALLY SOLVENT DEBTORS
 
     As discussed in Section III(G)(3)(f) of this Disclosure Statement, Credit
Suisse has asserted that LSC is solvent and that in extending credit to LSC it
relied on LSC's separate corporate existence. Accordingly, Credit Suisse
informed the Debtors that it would object to a substantive consolidation of the
Debtors' estates. After reviewing extensive financial information and evaluating
the claims asserted against their estates, the Debtors determined that to
resolve this dispute, and to avoid uncertainty surrounding the substantive
consolidation of their estates, they would establish a separate classification
in the Plan for holders of Allowed Unsecured Claims against all potentially
solvent Debtors, including LSC. Thus, in addition to LSC, a separate Plan
classification (Class 4A) has been created for holders of Allowed Unsecured
Claims against Construction Materials Company, I.C. Materials, Inc., New York
Trap Rock Corporation and Southern Aggregates, Inc.
 
D.  GENERAL REQUIREMENTS RESPECTING CONFIRMATION OF THE PLAN
 
     The following contains a brief summary of the provisions of the Bankruptcy
Code relating to the requirements for confirmation of a plan of reorganization.
It is not intended to be exhaustive, and creditors and interest holders are
referred to the relevant provisions of the Bankruptcy Code and are encouraged to
review the Plan and this Disclosure Statement with their own counsel.
 
     Section 1123 of the Bankruptcy Code provides that a plan of reorganization
shall classify the claims of a debtor's creditors and interest holders. As
detailed more fully below, the Plan divides the known Claims and
 
                                       78
<PAGE>   86
 
Stock Interests of the Debtors into nine classes and sets forth the treatment
afforded each class. Section 101(5) of the Bankruptcy Code defines "claim" as a
"right to payment, whether or not such right is reduced to judgment, liquidated,
unliquidated, fixed, contingent, matured, unmatured, disputed, undisputed,
legal, equitable, secured, or unsecured" or a "right to an equitable remedy for
breach of performance if such breach gives rise to a right to payment whether or
not such right to an equitable remedy is reduced to judgment, fixed, contingent,
matured, unmatured, disputed, undisputed, secured, or unsecured." An interest is
an equity interest.
 
     In order for the holder of a Claim or Stock Interest to participate in a
reorganization plan and receive the treatment offered to the class in which it
is classified, its Claim or Stock Interest must be allowed. A Claim or Stock
Interest is "allowed" under the Bankruptcy Code and the Plan (hereinafter an
"Allowed Claim" or "Allowed Stock Interest") if such Claim or Stock Interest or
portion thereof (i) has been scheduled by the debtor and is not scheduled as
disputed, contingent or unliquidated and as to which no objection timely filed
by any party-in-interest is pending, or (ii) which has been filed with the
Bankruptcy Court and as to which no objection to the allowance thereof has been
interposed within the period of time therefor fixed by the Bankruptcy Code,
Bankruptcy Rules or order of the Bankruptcy Court, or as to which any objection
has been determined by a final order of the Bankruptcy Court allowing such
portion.
 
     Any person who holds Allowed Claims in more than one class is required to
vote separately with respect to each class in which that person holds Allowed
Claims. Thus, for instance, if a holder of both an Allowed Unsecured Claim and
an Allowed Stock Interest executes a Ballot accepting the Plan for its Allowed
Stock Interest but does not execute a Ballot with respect to its Allowed
Unsecured Claim, such holder's vote will count only as the vote of a holder of
an Allowed Stock Interest and will not count as the vote of a holder of an
Allowed Unsecured Claim.
 
     1.   CLASSIFICATION OF CLAIMS AND STOCK INTERESTS UNDER THE PLAN
 
     The Company is required under Section 1122 of the Bankruptcy Code to
classify the Claims and Stock Interests of its creditors and interest holders
into classes that contain Claims and Stock Interests that are substantially
similar to the other Claims or Stock Interests in such class. While the Debtors
believe that they have classified all Claims and Stock Interests in compliance
with the provisions of Section 1122, it is possible that a creditor or interest
holder may challenge the Debtors' classification of Claims or Stock Interests
and the Bankruptcy Court may find that a different classification is required
for the Plan to be confirmed. In such event, it is the present intention of the
Debtors, to the extent permitted by the Bankruptcy Court, to make such
reasonable modifications of the classification of Claims or Stock Interests
under the Plan to provide for whatever reasonable classification might be
required by the Bankruptcy Court for Confirmation and to use the properly
completed Ballots for the purpose of obtaining the approval of the class or
classes of which such creditor or interest holder is ultimately deemed to be a
member. Any such reclassification of Claims or Stock Interests could adversely
affect the class in which such creditor or interest holder was initially a
member, or any other class under the Plan, by changing the composition of such
class and the required vote thereof for approval of the Plan. Further, a
reclassification of Claims or Stock Interests after approval of the Plan might
necessitate a re-solicitation of acceptances to the Plan.
 
     TO THE EXTENT PERMITTED BY THE BANKRUPTCY CODE AND BANKRUPTCY RULES,
ACCEPTANCE OF THE PLAN BY ANY CREDITOR OR INTEREST HOLDER PURSUANT TO THIS
SOLICITATION WILL BE DEEMED TO BE THE ACCEPTANCE OF THE PLAN'S TREATMENT OF SUCH
CREDITOR OR INTEREST HOLDER REGARDLESS OF WHICH CLASS SUCH CREDITOR OR INTEREST
HOLDER IS ULTIMATELY DEEMED TO BE A MEMBER.
 
     Only Allowed Claims and Allowed Stock Interests are entitled to receive
distributions under the Plan. The following sets forth the classification of
Claims and Stock Interests under the Plan:
 
     -  Class 1 consists of all Allowed Priority Claims.
 
     -  Class 2 consists of all Allowed Secured Claims.
 
                                       79
<PAGE>   87
 
     -  Class 3 consists of all Allowed Convenience Claims.
 
     -  Class 4 consists of all Allowed Unsecured Claims that are not Allowed
        Convenience Claims, Intercompany Claims or Allowed Claims in Class 7.
        Class 4 Claims are classified further into the following subclasses: (i)
        Class 4A consists of all Allowed 4A Unsecured Claims, and (ii) Class 4B
        consists of all Allowed 4B Unsecured Claims.
 
     -  Class 5 consists of all Allowed Preferred Stock Interests.
 
     -  Class 6 consists of all Allowed Common Stock Interests.
 
     -  Class 7 consists of all Claims for rescission of a purchase or sale of
        Common Stock or for damages arising from the purchase or sale of Common
        Stock, including all claims relating to the Class Action Proceeding
        discussed above.
 
     -  Class 8 consists of all Allowed Equity Interests Subsidiaries.
 
     -  Class 9 consists of all Intercompany Claims.
 
     2.   VALUATION
 
     As part of the Plan development process, the Debtors were required to
value their businesses to determine the allocation of Cash, Senior Notes, Asset
Proceeds Notes, New Lone Star Common Stock and Reorganized Lone Star Warrants
to be distributed pursuant to the Plan among various constituencies. The
Debtors have been advised in this regard by Blackstone. For purposes of Plan
negotiations, the reorganization equity value of the Debtors, net of debt and
other liabilities assumed to be outstanding as of January 3, 1994 (the assumed
Effective Date), was estimated by the Debtors, based on advice from Blackstone,
at approximately $176.7 million.(47) Such valuation represents the midpoint of
the range of valuations (approximately $149 million to $204 million) as of the
assumed Effective Date prepared by Blackstone in respect of the Debtors'
businesses, based upon a number of assumptions, including but not limited to, a
successful reorganization of the Debtors' finances in a timely manner, the
continuation of current market conditions, access to working capital financing
by the Debtors and the achievement of the forecasts reflected in the Debtors'
business plan and set forth in Exhibit "F" annexed hereto. Some assumptions may
not materialize and unanticipated events and circumstances may affect the
Debtors' actual financial results and status. Therefore, the actual results
achieved may vary from the projected results underlying such valuations and
such variations may be material.
 
     The valuation analysis is predicated in part on the Debtors' forecasts of
unleveraged, after-tax cash flows calculated for each year over the four-year
period from 1994 to 1997, the capitalization of average projected earnings
before interest, depreciation and taxes at a multiple selected to value earnings
and cash flows beyond 1997, and the discounting of the resulting amounts to
present value at a rate selected by the Debtors and Blackstone to approximate
the Debtors' projected weighted average cost of capital. The techniques employed
in valuing the Debtors' businesses (i.e., discounted cash flow analysis,
multiples of comparable publicly traded companies) are standard and widely used
in financial analysis and are typically the methods used in valuing companies
emerging from Chapter 11. Although Blackstone conducted a review and analysis of
the Debtors' businesses, assets, liabilities and business plan, Blackstone
assumed and relied on the accuracy and completeness of all the financial and
other information furnished to it by the Debtors. In addition, Blackstone did
not independently verify management's forecast in connection with the foregoing
valuations.
 
     Blackstone's valuation represents a hypothetical reorganization value which
was developed solely to formulate and negotiate a plan of reorganization and
analyze the relative recoveries to creditors and other parties-in-interest.
Specifically, in addition to the Cash to be distributed under the Plan, for
purposes of estimating the recovery percentages to holders of Allowed Unsecured
Claims in Class 4, the Debtors have ascribed a value to the Senior Notes equal
to the face amount of such securities. The value ascribed to the Asset Proceeds
Notes of between $99.8 million and $138.1 million represents, at the low end,
estimates of the
 
- ---------------
 
47 The valuation represents a hypothetical reorganization equity value which was
   derived through the application of various techniques and does not purport to
   reflect or constitute an estimate or opinion of the actual market value of
   the New Lone Star Common Stock.
 
                                       80
<PAGE>   88
 
cash flow and net proceeds from disposition of the Non-Core Assets and, at the
high end, the face value of such notes. The value of the New Lone Star Common
Stock to be issued to Classes 4, 5 and 6 was based upon an assumed
reorganization equity value of $149,247,000 to $204,247,000. Such valuations
reflect computations of the estimated intrinsic value of the Debtors' businesses
derived through the application of various valuation techniques and do not
purport to reflect or constitute an estimate or opinion of the actual market
value of any security to be issued pursuant to the Plan.
 
     As set forth in Section I(A)(5) of this Disclosure Statement, the Equity
Committee disputes the Debtors' valuation of their assets. Based on valuations
conducted by Argosy off the Debtors' own projections, which the Equity Committee
believes are overly conservative, the Equity Committee believes the
reorganization equity value of the Debtors under the Plan would be between
$265.7 million and $383.8 million -- approximately 83% greater than the
reorganization equity value derived by Blackstone and used by the Debtors to
formulate the Plan. Based on the discrepancies described above, the Equity
Committee believes the Plan is not fair and equitable to equity security
holders. The Debtors believe their valuation is sound and the Plan can be
confirmed notwithstanding the Equity Committee's objection.
 
     In addition to determining the enterprise value of Reorganized Lone Star
and the reorganization equity value of the Debtors, the Debtors also were
required to value their assets to determine the possible recoveries to creditors
and equity security holders in a hypothetical liquidation of the Debtors under
Chapter 7 of the Bankruptcy Code. Such analysis of a hypothetical liquidation is
required to demonstrate the Plan is in the best interests of all creditors and
equity security holders and meets the requirements of Section 1129(a)(7) of the
Bankruptcy Code. (See Section V(B)(2) and Exhibit "E" to the Disclosure
Statement for discussion of the Debtors' liquidation analysis.)
 
     To prepare their liquidation analysis, the Debtors were guided by the
valuation conclusions of Strategic Capital Incorporated ("SCI"), a valuation
consultant engaged by the Debtors. SCI performed a going concern valuation for
each of the Debtors' principal operating facilities and joint ventures on an
asset by asset basis using a discounted cash flow analysis of projected cash
flows independently generated by SCI. Based in part on SCI's analysis, the
Debtors believe the disposition of their assets in a liquidation under Chapter 7
would result in gross proceeds of approximately $464 million.
 
     In addition to the work performed by SCI and the Debtors, valuations of the
Debtors on an asset by asset basis were performed by Argosy, Glassman-Oliver (on
behalf of Lawrence Ramer, a major Lone Star common stockholder and Equity
Committee designee to Lone Star's Board), and Messrs. Roy Grancher and Dick
Entorf (consultants retained by the Equity Committee). These valuations reflect
each consultant's conclusion regarding the going concern value of the Debtors'
assets in a hypothetical liquidation of the Debtors' estates. As set forth in
the following table, each expert did not value the same group of assets or apply
the same valuation methodologies.
 
     Based on these valuations, the Equity Committee may dispute that the Plan
is in the best interests of equity security holders. However, the Debtors
believe the methodologies used to derive the valuations relied upon by the
Equity Committee are flawed. The Debtors believe the valuations determined by
SCI more accurately reflect the hypothetical value of the Debtors' assets in a
liquidation.
 
     The following table was included at the request of the Equity Committee to
highlight the difference in the conclusions reached by the various experts with
respect to the liquidation values of the Debtors' assets. The Debtors maintain
that, because different assets are valued, and different methodologies were
employed, comparability is lacking.
 
                                       81
<PAGE>   89
 
                          COMPARISON OF VALUATIONS OF
                  DEBTORS' ASSETS IN HYPOTHETICAL LIQUIDATION
 
<TABLE>
<CAPTION>
                                                             AGGREGATE
                                                          ESTIMATED VALUE
                                                             OF ASSETS
                                                          (EXCLUDING CASH
                                                              ON THE
                                                            CONVERSION
                                                               DATE)
                                                           (MILLIONS OF
       CONSULTANT             VALUATION METHODOLOGY          DOLLARS)                EXCLUSIONS
- ------------------------- -----------------------------   ---------------   -----------------------------
<S>                       <C>                             <C>               <C>
SCI...................... Discounted cash flow analysis   $390              Does not include the value of
                          based on independently-                           non-operating assets
                          generated cash flow                               including the Pennsuco lease,
                          projections for all operating                     surplus real estate, Lone
                          assets and joint venture                          Star-Falcon, the Riedel Note,
                          interests. Expenses excluded                      anticipated recoveries from
                          retiree benefit obligations                       Cross-tie and Argentina
                          and corporate level general                       related litigation or the
                          and administrative expenses.                      Debtors' tax attributes.
Glassman-Oliver.......... Replacement value analysis,     $690.0-$753.8     Does not include the value of
                          discounted cash flow analysis                     the Debtors' interests in RMC
                          (based on the Debtors'                            LONESTAR, anticipated
                          October 1992 projected                            recoveries from insurance and
                          operating results excluding                       Argentina related litigation,
                          corporate level general and                       the Debtors' tax attributes
                          administrative expenses) and                      or Hawaiian Cement real
                          comparable asset sales                            estate holdings.
                          analysis.
Grancher & Entorf........ Value per ton of production     $575.5-$671.0     Does not include value of
                          capacity derived through                          surplus real estate, Lone
                          analysis of plant capacity,                       Star-Falcon, Reidel Note,
                          efficiency, technology,                           anticipated litigation
                          costs, regional market                            recoveries or tax attributes.
                          conditions, customer
                          relations, product quality
                          and comparable acquisitions,
                          among other factors.
Argosy................... Discounted cash flow analysis   $730.1-$865.2     Excludes tax attributes
                          (excluding corporate level
                          general and administrative
                          expenses, retiree benefit
                          obligations and pension
                          liabilities), EBITDA
                          analysis, adjustments based
                          on factors used by Grancher &
                          Entorf.
</TABLE>
 
The Debtors utilized SCI's valuations in their liquidation analysis because SCI
used a discounted cash flow analysis, a standard valuation technique, while
Argosy, Grancher & Entorf and Glassman-Oliver used methodologies based on
production capacity, comparable asset sales and other factors which the Debtors
believe are inappropriate.
 
     3.     TREATMENT OF CLAIMS AND STOCK INTERESTS UNDER THE PLAN
 
     Set forth below is a summary of the Debtors' Plan, a copy of which is
annexed hereto and to which reference is made. This summary is qualified in its
entirety by the full text of such document. In the event of an inconsistency
between the Plan and the description contained herein, the terms of the Plan
shall govern. The Debtors' Plan is complicated and substantial. Time should be
allowed for its analysis; consultation with a legal and/or financial advisor is
recommended and should be considered.
 
ADMINISTRATIVE EXPENSES
 
     Administrative Expenses include the actual and necessary costs and expenses
of the Debtors' Chapter 11 cases including expenses respecting the Production
Payment. Such expenses may include costs incurred in the operation of the
Debtors' businesses after the Filing Date, the actual, reasonable fees and
expenses of
 
                                       82
<PAGE>   90
 
professionals retained by the Debtors as approved by the Bankruptcy Court, and
the actual, reasonable fees and expenses incurred during the Chapter 11 cases by
any statutory committees appointed to serve in these cases as approved by the
Bankruptcy Court, and certain other obligations incurred during the pendency of
these Chapter 11 cases.
 
     Pursuant to the Plan, all Allowed Administrative Claims shall be paid by
the Debtors in full, in Cash, in such amounts as are incurred in the ordinary
course of business by the Debtors, or in such amounts as such Administrative
Claims are allowed by the Bankruptcy Court (a) upon the later of the Effective
Date or the date upon which the Bankruptcy Court enters a Final Order allowing
such Administrative Claim or (b) upon such other terms as may exist due to the
ordinary course of the business of the Debtors or (c) as may be agreed upon
between the holders of such Administrative Claims and the Debtors.
 
     All payments to professionals and all payments to reimburse expenses of
members of statutory committees will be made in accordance with the procedures
established by the Bankruptcy Code and the Bankruptcy Rules promulgated
thereunder regarding the payment of interim and final compensation and expenses.
The Bankruptcy Court will review and determine all requests for compensation and
reimbursement of expenses.
 
     As of the date hereof, the Debtors estimate that, on the Effective Date,
the total amount of Administrative Claims (including estimates for Disputed
Claims) will be $738,000 (excluding amounts for Professional Fee holdbacks
currently estimated to be $8,100,000, $2,400,000 for a management retention
program previously approved by the Bankruptcy Court, and $1,600,000 for
estimated severance payments). In addition, other Administrative Claims which
arise in the ordinary course of the Debtors' business shall be paid on ordinary
business terms.
 
PRIORITY AND SECURED TAX CLAIMS
 
     Priority Tax Claims include the allowed unsecured Claims of governmental
units entitled to a priority in right of payment under the Bankruptcy Code.
Secured Tax Claims include the allowed Claims of governmental units secured by
property of the Debtors' estates.
 
     Pursuant to the Plan, all Allowed Tax Claims of governmental units entitled
to priority under Section 507(a)(7) of the Bankruptcy Code shall be paid by the
Debtors in full, in Cash, on the Effective Date or upon such other terms as may
be agreed to between the Debtors and any holder of an Allowed Tax Claim;
provided, however, that (i) (a) the Debtors may, at their option, in lieu of
payment in full on the Effective Date of the Allowed Tax Claims, make cash
payments respecting Allowed Tax Claims, deferred to the extent permitted by
Section 1129(a)(9) of the Bankruptcy Code and, in such event, interest shall be
paid on the unpaid portion of such Allowed Tax Claim at the statutory rate or at
a rate to be agreed to by the Debtors and the appropriate governmental unit or,
if they are unable to agree, to be determined by the Bankruptcy Court; and (b)
if such Allowed Tax Claim is for a tax assessed against property of the estate,
such Claim does not exceed the value of the interest of the estates in such
property, and (ii) in the event an Allowed Tax Claim may also be classified as
an Allowed Secured Claim, the Debtors may, at their option, elect to treat
Allowed Tax Claims as Secured Claims. All Allowed Tax Claims that by their terms
become due and payable after the Confirmation Date shall be paid when due.
 
     As of the date hereof, the Debtors estimate that, on the Effective Date,
the total amount of Priority Tax Claims (including estimates for Disputed
Claims) will be $3,991,000 and that Secured Tax Claims (including estimates for
Disputed Claims) will be $684,000 (in principal amount).
 
UNIMPAIRED CLASSES UNDER THE PLAN
 
     Class 1 -- Allowed Priority Claims
 
     Class 1 consists of Allowed Claims which are entitled to a priority in
right of payment under the Bankruptcy Code. Examples of such Allowed Priority
Claims include, without limitation, (i) unsecured Claims for accrued employees
compensation, including vacation, severance, and sick-leave pay, earned within
the 90 days prior to the Filing Date, to the extent of $2,000 per employee, and
(ii) contributions to employer
 
                                       83
<PAGE>   91
 
benefit plans arising from services rendered within the 180-day period next
preceding the Filing Date, but only for such plans to the extent of (a) the
number of employees covered by such plans multiplied by $2,000, less (b) the
aggregate amount paid to such employees for accrued compensation.
 
     Pursuant to the Plan, all Allowed Priority Claims shall be paid in full, in
Cash, as soon as practicable after:
 
          (a) the later of the Effective Date, or the date of a Final Order
     allowing any such Claim in Class 1; or
 
          (b) upon such other terms as may be agreed to between the Debtors and
     any holder of a Class 1 Claim.
 
     As of the date hereof, the Debtors estimate that, on the Effective Date,
the total amount of Allowed Priority Claims (including estimates for Disputed
Claims) will be $2,156,000.
 
     Class 3 -- Allowed Convenience Claims
 
     On the Effective Date, each holder of an Allowed Convenience Claim shall
receive on account of such Claim a Cash payment equal to one hundred percent
(100%) of its Allowed Convenience Claim. Allowed Convenience Claims consist of
all Allowed Unsecured Claims in Class 4 that (i) are either $5,000 or less, or
(ii) exceed $5,000 but as to which the holder thereof elects to reduce such
Claim to $5,000. The Debtors estimate that on the Effective Date, subject to
those Claimants who may elect to have their Allowed Unsecured Claims treated as
Convenience Claims, the aggregate amount of Allowed Convenience Claims will be
approximately $2,600,000.
 
     Class 8 -- Allowed Equity Interests in Subsidiaries
 
     Each holder of an Allowed Equity Interest in Subsidiaries shall continue to
hold such interests, which equity interests shall continue to be evidenced by
the capital stock held by such record holders in the Subsidiary or Subsidiaries
as of the Effective Date.
 
     As a result of the substantive consolidation of the Debtors' estates, the
Allowed Equity Interests in Subsidiaries would be maintained whether or not
provided for in the Plan. Thus, the establishment of a separate Class for such
interests provides no greater rights than those to which the interest holders
would already be entitled. The creation of Class 8, therefore, is merely a way
of formalizing in the Plan the effect of substantive consolidation on Allowed
Equity Interests in Subsidiaries.
 
     The claimants in the Class Action Proceedings have asserted that the
retention of all Allowed Equity Interests in Subsidiaries under the Plan without
impairment constitutes a violation of the requirements of Section 510(b) of the
Bankruptcy Code and is a bar to confirmation of the Plan pursuant to Sections
1129(a) and 1129(b) of the Bankruptcy Code, and that such claimants intend to
oppose confirmation of the Plan on that basis. However, the Debtors believe that
the treatment of Allowed Equity Interests in Subsidiaries under the Plan is in
accordance with, and does not violate, Section 510(b) of the Bankruptcy Code,
and that they will be able to confirm the Plan notwithstanding any opposition by
the claimants in the Class Action Proceedings.
 
CLASSES IMPAIRED UNDER THE PLAN
 
     Class 2 -- Allowed Secured Claims
 
     Pursuant to the Plan, as to each Allowed Secured Claim, at the Debtor's
option, either:
 
        (a) (i) any default, other than of the kind specified in Section
        365(b)(2) of the Bankruptcy Code, shall be cured, provided that any
        accrued and unpaid interest, if any, which the Debtors may be obligated
        to pay with respect to such default shall be at the contract rate and
        not at any default rate of interest;
 
             (ii) the maturity of the Claim shall be reinstated as the maturity
        existed before any default;
 
                                       84
<PAGE>   92
 
             (iii) the holder of the Claim shall be compensated for any damage
        incurred as a result of any reasonable reliance by the holder on any
        provision that entitled the holder to accelerate maturity of the Claim;
        and
 
             (iv) the other legal, equitable, or contractual rights to which the
        Claim entitles the holder shall not otherwise be altered; provided,
        however, that as to any Allowed Secured Claim which is a nonrecourse
        claim and exceeds the value of the collateral securing the Claim, the
        collateral may be sold at a sale at which the holder of such Claim has
        an opportunity to bid; or
 
          (b) on the Effective Date, or on such other date thereafter as may be
     agreed to by the Debtors and the holder of such Claim, the Debtors shall
     abandon the collateral securing such Claim to the holder thereof in full
     satisfaction and release of such Claim; or
 
          (c) on the Effective Date, the holder of such Claim shall receive, on
     account of such Claim, Cash equal to its Allowed Secured Claim, or such
     lesser amount to which the holder of such Claim shall agree, in full
     satisfaction and release of such Claim; or
 
          (d) the holder of such Claim shall receive on account of such Claim,
     deferred Cash payments, pursuant to Section 1129(b)(2)(A)(ii)(II) of the
     Bankruptcy Code, totalling at least the Allowed Amount of such Claim, of a
     value, as of the Effective Date, of at least the value of such holder's
     interest in the Debtors' interest in such property.
 
     As of the date hereof, the Debtors estimate that, on the Effective Date,
the amount of Allowed Secured Claims will be approximately $1,422,000, in
principal amount. Approximately $558,000 of such amount relates to the estimated
principal amount of Allowed Secured Tax Claims. Additionally, approximately
$500,000 relates to the estimated amount of holders of mechanic's and
materialman's liens.(48) The balance of the Debtors' estimates relate to several
other secured claims.
 
     Excluded from the Debtors' estimate of Allowed Secured Claims above are
approximately $22,593,000 of secured obligations which will either be assumed by
Reorganized Lone Star or which relate to real property which will be transferred
to NewCo. These primarily consist of (i) approximately $21,800,000 of
obligations relating to the Production Payment transaction (see pages 18 to 20
for a discussion of the treatment of claims related to this transaction), and
(ii) the claim of Dr. Richard C. Schaffer arising out of an all-inclusive
promissory note in favor of Dr. Schaffer in the principal amount of $1,084,923,
executed in connection with the purchase of certain real property located in
Denton County, Texas. As of the Filing Date, Dr. Schaffer was owed $969,873.14
under such note (consisting of $916,823 in principal and $53,050.14 in
interest). Pursuant to a stipulation and order dated January 8, 1993, by and
between Lone Star and Dr. Schaffer, Lone Star, among other things, (i) made a
payment of $110,000 to reduce accrued post-petition interest and (ii) agreed to
make monthly payments of $10,000 to be applied to further reduce accrued
post-petition interest.
 
     Lone Star and Dr. Schaffer have reached an agreement in principle pursuant
to which, among other things, (i) the terms of the promissory note and all
security documents underlying this claim will be reinstated and the legal,
equitable or contractual rights to which the holder of such claim is entitled
shall not otherwise be altered, (ii) all defaults under the promissory note in
respect of such claim shall be cured (with any accrued and unpaid interest to be
paid through the Effective Date at the contract rate (plus $10,000) and not at
any default or penalty rate), and (iii) the reasonable legal fees of Dr.
Schaffer shall be satisfied by Reorganized Lone Star. The Debtors anticipate
that amounts necessary to cure defaults under the promissory note shall be at
least $360,000, depending upon the Effective Date of the Plan. Upon
reinstatement of the promissory note, the obligations to Dr. Schaffer shall
consist of the principal balance of $723,282 and interest accrued after the
Effective Date. As set forth in the Plan, the property securing this claim is to
be transferred
 
- ---------------
 
48 The Debtors expect to file an application with the Bankruptcy Court in the
   near future seeking authorization to pay prior to Confirmation Allowed
   Secured Claims relating to tax obligations and mechanic's and materialman's
   liens, conditioned upon a waiver by the holders of such claims of their
   rights, if any, to postpetition interest and other fees and costs. In those
   instances where such a waiver cannot be obtained, the Debtors intend to treat
   such Claims as otherwise provided in the Plan.
 
                                       85
<PAGE>   93
 
to NewCo and such transfer will be subject to the perfected first priority lien
of Dr. Schaffer and any liens thereafter granted shall be subordinated to Dr.
Schaffer's lien.
 
     Class 4 -- Allowed Unsecured Claims
 
     Class 4 consists of all Allowed Unsecured Claims. As of the date
hereof, the Debtors estimate that, on the Effective Date, the aggregate
outstanding amount of Allowed Unsecured Claims will be approximately
$571,500,000 (including estimates for Disputed Claims). Class 4 Claims are
classified further into the following subclasses (i) Class 4A shall consist of
all Allowed 4A Unsecured Claims, and (ii) Class 4B shall consist of all Allowed
4B Unsecured Claims. As of the date hereof, the Debtors estimate that, on the
Effective Date, the aggregate amount of (i) Allowed 4A Unsecured Claims will be
$23,165,000 (including estimates for Disputed Claims), and (ii) Allowed 4B
Unsecured Claims will be approximately $548,335,000 (including estimates for
Disputed Claims).(49)
 
     The Debtors anticipate that on January 3, 1994, they will have
approximately $238,172,000 in Cash.(50) From this amount, the following will be
deducted: approximately $26,000,000 to fund working capital requirements of
Reorganized Lone Star, $2,400,000 to fund a Court approved management retention
and separation program, $1,600,000 for estimated severance payments in
accordance with Lone Star policy, amounts to satisfy Professional Fee holdbacks
(currently estimated to be approximately $8,100,000), $5,000,000 to capitalize
NewCo and $1,500,000 for certain post-Effective Date Chapter 11 costs.
Accordingly, Lone Star estimates that on January 3, 1994, after deduction of
Cash to be distributed to holders of Administrative Claims, Allowed Convenience
Claims, Allowed Priority Claims, Allowed Secured Claims and Allowed Tax Claims,
Cash available for distribution to holders of Allowed Unsecured Claims will be
approximately $183,096,000.
 
CLASS 4A
 
     Under the Plan, on the Effective Date, each holder of an Allowed 4A
Unsecured Claim shall receive on account of such Claim:
 
          (a) its Pro Rata share of 4.7% of Available Cash (currently estimated
     to be $8,629,000 and subject to increase by 1.8% of the aggregate net
     proceeds from disposition of Non-Core Assets consummated prior to
     Confirmation); provided, however, that (i) if Allowed 4A Unsecured Claims
     exceed $22,700,000 in the aggregate, the Cash distributions to Class 4A
     shall be increased in an amount equal to such excess up to $500,000, and
     (ii) Available Cash allocated to Disputed Claims will not be distributed,
     but will be held by the Escrow Agent to be distributed in accordance with
     Section 6.8 of the Plan; plus
 
          (b) its Pro Rata share of $6,471,000 of Senior Notes (subject to the
     provisions of Sections 5.9 and 5.10 of the Plan) issued pursuant to the
     Senior Note Indenture;(51) provided, however, that the Senior Notes
     allocated to Disputed Claims will not be distributed, but will be held by
     the Escrow Agent to be distributed in accordance with Section 6.8 of the
     Plan; plus
 
          (c) its Pro Rata share of 1.8% of Asset Proceeds Notes (subject to the
     provisions of Sections 5.9 and 5.10 of the Plan) issued pursuant to the
     Asset Proceeds Note Indenture; provided, however, the Asset Proceeds Notes
     allocated to Disputed Claims will not be distributed, but will be held by
     the Escrow Agent to be distributed in accordance with Section 6.8 of the
     Plan; plus
 
          (d) its Pro Rata share of 321,600 shares of the New Lone Star Common
     Stock issued pursuant to the Lone Star Charter; provided, however, that New
     Lone Star Common Stock allocated to Disputed Claims will not be
     distributed, but will be held by the Escrow Agent to be distributed in
     accordance with
 
- ---------------
 
49 These estimates also include estimated amounts for Allowed Convenience
   Claims.
 
50 This anticipated amount of cash is subject to increase by the aggregate net
   proceeds from the disposition of the Non-Core Assets consummated prior to
   Confirmation.
 
51 The form of Senior Note Indenture is annexed hereto as Exhibit "L."
 
                                       86
<PAGE>   94
 
     Section 6.8 of the Plan. The New Lone Star Common Stock issued to holders
     of Allowed 4A Unsecured Claims pursuant to the Plan will represent 2.68% of
     the outstanding shares of New Lone Star Common Stock; provided, however,
     that the percentage of New Lone Star Common Stock issued to holders of
     Allowed 4A Unsecured Claims pursuant to Section 5.2.1(iv) of the Plan is
     subject to (i) dilution in accordance with the Stock Option Plans (the
     forms of which are annexed hereto as Exhibit "T"), shares of New Lone Star
     Common Stock issued as a result of the exercise of the Reorganized Lone
     Star Warrants and such other shares as may be authorized and issued
     pursuant to the Reorganized Lone Star Charter or (ii) increase as set forth
     immediately below.
 
     In the event holders of Allowed Preferred Stock Interests do not accept the
Plan, then, in addition to the above, each holder of an Allowed 4A Unsecured
Claim shall also receive its Pro Rata share of an additional .48% of the New
Lone Star Common Stock (or 57,600 additional shares) which would have otherwise
been distributed to the holders of Allowed Preferred Stock Interests and Allowed
Common Stock Interests. In such event, the Reorganized Lone Star Warrants shall
not be issued and the Warrant Agreement shall not be effective.
 
     In the event holders of Allowed Preferred Stock Interests accept the Plan,
and holders of Allowed Common Stock Interests do not accept the Plan, then, in
addition to the above, each holder of an Allowed 4A Unsecured Claim shall also
receive its Pro Rata share of an additional .15% of the New Lone Star Common
Stock issued on the Effective Date (or an additional 570,000 shares) which would
have otherwise been distributed to the holders of Stock Interests pursuant to
the Plan.
 
     Overall, based upon the Cash to be distributed, the principal amount of the
Senior Notes, the amount of the Asset Proceeds Notes and the estimated
reorganization value of the New Lone Star Common Stock, and the projected amount
of Allowed 4B Unsecured Claims, the Debtors estimate that, under the Plan,
holders of Allowed 4A Unsecured Claims shall receive a recovery on account of
such Claims of approximately 92.2% to 101.8% in the event of a consensual
confirmation, or 93.2% to 103.1% in the event of a non-consensual confirmation
where Class 5 accepts the Plan and Class 6 rejects the Plan, or 95.3% to 106.1%
in the event of a nonconsensual confirmation where Class 5 rejects the Plan.
 
CLASS 4B --
 
     Under the Plan, on the Effective Date, each holder of an Allowed 4B
Unsecured Claim shall receive on account of such Claim:
 
          (a) its Pro Rata share of Available Cash remaining after distributions
     of Cash on the Effective Date to holders of Allowed Claims in Class 4A
     pursuant to Section 5.2.1 of the Plan have been completed; provided,
     however, that Available Cash allocated to Disputed Claims will not be
     distributed, but will be held by the Escrow Agent to be distributed in
     accordance with Section 6.8 of the Plan; plus
 
          (b) its Pro Rata share of $68,529,000 of Senior Notes (subject to the
     provisions of Sections 5.9 and 5.10 of the Plan) issued pursuant to the
     Senior Note Indenture; provided, however, that the Senior Notes allocated
     to Disputed Claims will not be distributed, but will be held by the Escrow
     Agent to be distributed in accordance with Section 6.8 of the Plan; plus
 
          (c) its Pro Rata share of 98.2% of Asset Proceeds Notes issued
     pursuant to the Asset Proceeds Note Indenture (subject to the provisions of
     Sections 5.9 and 5.10 of the Plan); provided, however, that Asset Proceeds
     Notes allocated to Disputed Claims will not be distributed, but will be
     held by the Escrow Agent to be distributed in accordance with Section 6.8
     of the Plan; plus
 
          (d) its Pro Rata share of 9,878,400 shares of the New Lone Star Common
     Stock issued pursuant to the Lone Star Charter; provided, however, that New
     Lone Star Common Stock allocated to Disputed Claims will not be
     distributed, but will be held by the Escrow Agent to be distributed in
     accordance with Section 6.8 of the Plan. The New Lone Star Common Stock
     issued to holders of Allowed 4B Unsecured Claims pursuant to the Plan will
     represent 82.32% of the outstanding shares of New Lone Star Common Stock;
     provided, however, that the percentage of New Lone Star Common Stock issued
     to holders of Allowed Unsecured Claims pursuant to Section 5.2.2(iv) of the
     Plan is subject to (i) dilution in
 
                                       87
<PAGE>   95
 
     accordance with the Stock Option Plans (the forms of which are annexed
     hereto as Exhibit "T"), shares of New Lone Star Common Stock issued as a
     result of the exercise of the Reorganized Lone Star Warrants(52) and such
     other shares as may be authorized and issued pursuant to the Reorganized
     Lone Star Charter or (ii) increase as set forth immediately below.
 
     In the event holders of Allowed Preferred Stock Interests do not accept the
Plan, then, in addition to the above, each holder of an Allowed 4B Unsecured
Claim shall also receive its Pro Rata share of an additional 14.52% of the New
Lone Star Common Stock (or 1,742,400 additional shares) which would have
otherwise been distributed to the holders of Allowed Preferred Stock Interests
and Allowed Common Stock Interests. In such event, the Reorganized Lone Star
Warrants shall not be issued and the Warrant Agreement shall not be effective.
 
     In the event holders of Allowed Preferred Stock Interests accept the Plan,
and holders of Allowed Common Stock Interests do not accept the Plan, then, in
addition to the above, each holder of an Allowed 4B Unsecured Claim shall also
receive its Pro Rata share of an additional 4.6% of the New Lone Star Common
Stock issued on the Effective Date (or an additional 552,000 shares) which would
have otherwise been distributed to the holders of Stock Interests pursuant to
the Plan plus its Pro Rata share of 2,083,333 Reorganized Lone Star Warrants
which would have otherwise been distributed to holders of Allowed Common Stock
Interests.
 
     Overall, based upon the Cash to be distributed, the principal amount of the
Senior Notes, the amount of the Asset Proceeds Notes, the estimated
reorganization value of the New Lone Star Common Stock and the Reorganized Lone
Star Warrants (where applicable), and the projected amount of Allowed 4B
Unsecured Claims, the Debtors estimate that, under the Plan, holders of Allowed
4B Unsecured Claims shall receive a recovery on account of such Claims of
approximately 84.9% to 100.0% in the event of a consensual confirmation, or
86.7% to 102.3% in the event of a non-consensual confirmation where Class 5
accepts the Plan and Class 6 rejects the Plan, or 88.8% to 105.5% in the event
of a nonconsensual confirmation where Class 5 rejects the Plan.
 
     Class 5 -- Allowed Preferred Stock Interests
 
     Lone Star has two outstanding series of preferred stock, 375,000 shares of
$13.50 cumulative convertible preferred stock and 11,083 shares of $4.50
cumulative convertible preferred stock. Both series of preferred stock have
substantially similar rights. Specifically, both series (i) are convertible into
common stock of Lone Star, (ii) rank equally as to the payment of dividends and
the distribution of assets upon the dissolution, liquidation or winding up of
Lone Star, and (iii) have the same liquidation preference upon the involuntary
liquidation, dissolution or winding up of the affairs of Lone Star ($100 per
share plus accrued and unpaid dividends). Additionally, pursuant to the terms of
Lone Star's certificate of incorporation, the holders of each series are
provided the same rights with respect to the election of directors to Lone
Star's Board upon the failure to pay dividends for specified periods.
Accordingly, the Debtors have classified both series of preferred stock into a
single class under the Plan.
 
          (a) Treatment if Class 5 Accepts the Plan.  All Preferred Stock shall
     be canceled, annulled and extinguished as of the Effective Date, and each
     holder of an Allowed Preferred Stock Interest shall receive, on the later
     of the Effective Date or the date of surrender to Reorganized Lone Star for
     cancellation of the certificates representing Preferred Stock (or if such
     certificates have been stolen, lost, or destroyed, in lieu thereof (i) a
     lost security affidavit and (ii) a bond if reasonably required by
     Reorganized Lone Star), its Pro Rata share of 1,260,000 shares of New Lone
     Star Common Stock issued pursuant to the New Lone Star Charter plus its Pro
     Rata share of 1,250,000 Reorganized Lone Star Warrants; provided, however,
     that in the event holders of Allowed Common Stock Interests do not accept
     the Plan, each holder of an Allowed Preferred Stock Interest shall instead
     receive its Pro Rata share of 1,230,000 of the New Lone Star Common Stock
     pursuant to the New Lone Star Charter plus its Pro
 
- ---------------
 
52 The Reorganized Lone Star Warrants shall be issued pursuant to the Warrant
   Agreement, the form of which is annexed hereto as Exhibit "S."
 
                                       88
<PAGE>   96
 
     Rata share of 1,250,000 Reorganized Lone Star Warrants.(53) When the
     distributions are completed, the New Lone Star Common Stock issued to
     holders of Allowed Preferred Stock Interests pursuant to Section 5.3(a) of
     the Plan will represent (i) 10.5% of the outstanding shares of New Lone
     Star Common Stock on the Effective Date if holders of Allowed Common Stock
     Interests accept the Plan, or (ii) 10.25% of the outstanding shares of New
     Lone Star Common Stock on the Effective Date in the event holders of
     Allowed Common Stock Interests do not accept the Plan (subject to dilution
     as described above). Based upon the estimated reorganization value of the
     New Lone Star Common Stock and the Reorganized Lone Star Warrants, holders
     of Allowed Preferred Stock Interests would receive an aggregate range of
     value of $17,546,000 to $23,321,000 if holders of Allowed Common Stock
     accept the Plan, or $17,173,000 to $22,810,000 if holders of Allowed Common
     Stock do not accept the Plan.
 
          The Debtors estimate that the aggregate range of recovery to holders
     of Allowed Preferred Stock Interests on account of their investment would
     be 45.0% to 59.8% if holders of Allowed Common Stock Interests accept the
     Plan, or 44.1% to 58.5% if holders of Allowed Common Stock interests do not
     accept the Plan.(54)
 
          The Debtors believe that the treatment afforded holders of Allowed
     Preferred Stock interests under the Plan is fair and equitable with respect
     to such holders because, in the event of a cramdown pursuant to Section
     1129(b) of the Bankruptcy Code (see Section V(B)(2) for a discussion of
     cramdown), holders of Allowed Unsecured Claims could assert that they must
     receive (in addition to the amount of their Allowed Claims as of the Filing
     Date) post-petition interest on such claims from the Filing Date to the
     date of payment before preferred shareholders receive any distribution.
     Since under the Plan, except under the most optimistic valuation, holders
     of Allowed Unsecured Claims will receive only a small portion of
     post-petition interest (and in less optimistic scenarios, none), holders of
     Allowed Preferred Stock interests would not, in a cramdown, be entitled to
     any distribution. Accordingly, the Debtors believe that the projected
     recoveries to holders of Allowed Preferred Stock Interests are fair and
     equitable to such holders.
 
          (b) Treatment Under Nonconsensual Plan if Class 5 Rejects the
     Plan.  All Preferred Stock shall be cancelled, annulled and extinguished as
     of the Effective Date and each holder of an Allowed Preferred Stock
     Interest shall not be entitled to receive or retain any property or
     interest in property on account of such Preferred Stock Interest under the
     Plan and the Reorganized Lone Star Warrants shall not be issued and the
     Warrant Agreement shall not become effective. In addition, holders of
     Allowed Common Stock Interests shall be treated as set forth in Section
     5.4(b) of the Plan.(55)
 
- ---------------
 
53 This reduction in the recovery to holders of Preferred Stock in a
   non-consensual confirmation is a result of the Debtors' negotiations with the
   Creditors' Committee and the holder of over 70% of the Debtors' Preferred
   Stock, both of whom have agreed to such treatment.
 
54 The estimated recoveries to holders of Allowed Preferred Stock Interests are
   calculated as a percentage of such holders' investment as of the Filing Date
   (which includes accrued and unpaid dividends as of such date). For purposes
   of a cramdown of common equity and satisfaction of the absolute priority rule
   contained in Section 1129(b) of the Bankruptcy Code (and, in particular, the
   fair and equitable requirements -- see Section V(B)(2)) the liquidation
   preference of both series of the Debtors' Preferred Stock which includes
   accrued and unpaid dividends (both pre - and post-petition) must be included
   in determining the aggregate amount of obligations of preferred shareholders
   which must be satisfied before common shareholders could receive any
   distribution or retain any property. The amount of accrued and unpaid
   pre-petition and projected post-petition dividends respecting the Debtors'
   Preferred Stock is $1,220,000 and $15,619,000, respectively. If all accrued
   and unpaid dividends are included in the calculation, the estimated recovery
   to preferred shareholders under a non-consensual plan is 32.1% to 42.7%.
 
55 The Debtors believe that this treatment is fair and equitable and in the best
   interests of their estates in light of the midpoint in the range of
   recoveries to unsecured creditors under the Plan (less than 100%) and the
   fact that the unsecured creditors will not receive post-petition interest on
   their claims. Thus, unsecured creditors could argue that holders of both
   Preferred and Common Stock should not be entitled to receive, in a cramdown,
   any distribution until the holders of allowed unsecured claims receive
   recoveries equal to 100% of their allowed claims plus post-petition interest
   calculated from the Filing Date through the date of payment.
 
   In any event, the Plan reflects that in accordance with the absolute priority
   rule contained in Section 1129(b)(2)(C) of the Bankruptcy Code, in the event
   holders of Preferred Stock reject the Plan, holders of Common Stock do not
   receive any distribution respecting their interests.
 
                                       89
<PAGE>   97
 
          (c) Effect of Alternative Treatment for Nonconsensual Confirmation on
     Holders of Preferred Stock Interests.  In the event that holders of Allowed
     Preferred Stock Interests do not accept the Plan by the requisite statutory
     majorities provided in Section 1126(c) of the Bankruptcy Code, the
     treatment provision of Section 5.3(a) of the Plan relating to such Stock
     Interests shall be null and void and of no further force and effect and
     holders of Allowed Preferred Stock Interests shall be treated in accordance
     with Section 5.3(b) of the Plan.
 
     Class 6 -- Allowed Common Stock Interests
 
          (a) Treatment if Class 6 Accepts the Plan.  All Common Stock shall be
     canceled, annulled and extinguished as of the Effective Date, and each
     holder of an Allowed Common Stock Interest shall receive, on the later of
     the Effective Date or the date of surrender to Reorganized Lone Star for
     cancellation of the certificates representing Common Stock (or if such
     certificates have been stolen, lost, or destroyed, in lieu thereof (i) a
     lost security affidavit and (ii) a bond if reasonably required by
     Reorganized Lone Star), its Pro Rata share of 540,000 shares of New Lone
     Star Common Stock issued pursuant to the New Lone Star Charter, and its Pro
     Rata share of 2,083,333 Reorganized Lone Star Warrants issued pursuant to
     the Warrant Agreement; provided, however, that in the event holders of
     Allowed Preferred Stock Interests do not accept the Plan, in accordance
     with Section 1129(b)(2)(C) of the Bankruptcy Code, all Common Stock shall
     be cancelled, annulled and extinguished as of the Effective Date and each
     holder of an Allowed Common Stock Interest shall not be entitled to receive
     or retain any property or interest in property on account of such Common
     Stock Interest under the Plan. The New Lone Star Common Stock issued to
     holders of Allowed Common Stock Interests pursuant to Section 5.4(a)(i) of
     the Plan will represent 4.5% of the outstanding shares of New Lone Star
     Common Stock when the distributions described in the Plan are completed
     (subject to dilution as described above). Based upon the estimated
     reorganization values of the New Lone Star Common Stock and the Reorganized
     Lone Star Warrants, holders of Allowed Common Stock Interests pursuant
     would receive an aggregate range of value of $9,841,000 to $12,316,000
     pursuant to Section 5.4(a)(i) of the Plan.
 
          (b) Treatment Under Nonconsensual Plan if Class 6 Rejects the
     Plan.  All Common Stock shall be cancelled, annulled and extinguished as of
     the Effective Date and each holder of an Allowed Common Stock Interest
     shall not be entitled to receive or retain any property or interest in
     property on account of such Common Stock Interest under the Plan.(56)
 
          (c) Effect of Alternate Treatment for Nonconsensual Confirmation on
     Holders of Common Stock Interests. In the event that holders of Allowed
     Preferred Stock Interests or Allowed Common Stock Interests do not accept
     the Plan by the requisite statutory majorities provided in Section 1126(c)
     of the Bankruptcy Code, the treatment provision of Section 5.4(a) of the
     Plan (consensual Confirmation) relating to such Stock Interests shall be
     null and void and of no further force and effect and holders of Allowed
     Common Stock Interests shall be treated in accordance with Section 5.4(b)
     of the Plan (nonconsensual Confirmation).
 
     Class 7 -- Rescission and Damage Claims Respecting Common Stock
 
     Class 7 Claims include all claims relating to the Class Action Proceedings
discussed above in Section III(G)(4)(b) and all rescission and damage claims
otherwise arising from an alleged loss or investment in Lone Star's common
stock. Each holder of an Allowed Unsecured Claim in Class 7, shall retain all
proceeds derived from any litigation instituted by any such holder or on his
behalf against any entity other
 
- ---------------
 
56 The Debtors believe that this treatment is permitted under the Bankruptcy
   Code. This treatment was developed as part of negotiations with the
   Creditors' Committee respecting the Plan in order to give common shareholders
   incentive to vote in favor of the Plan so as to achieve a consensual
   confirmation. However, during negotiations, the Creditors' Committee insisted
   that common shareholders not receive any distribution should they reject the
   Plan and burden the Debtors' estates with the expense and delay of a
   contested Confirmation pursuant to the cramdown provisions of Section 1129(b)
   of the Bankruptcy Code (see Section V(B)(2)). Furthermore, this type of
   treatment has been upheld by the United States District Court for the
   Southern District of New York. See In re Drexel Burnham Lambert Group,
   Inc.,138 B.R. 714 (Bankr. S.D.N.Y.), aff'd, 140 B.R. 347 (S.D.N.Y. 1992).
 
                                       90
<PAGE>   98
 
than the Debtors (but not any proceeds from any of the property or assets of any
of the Debtors) but shall receive no distribution under this Plan from the
Debtors or Reorganized Debtors. Thus, with respect to claims asserted in
connection with the Class Action Proceedings described in Section III(G)(4)(b),
holders of such Claims shall not receive any distribution under the Plan from
the Debtors or Reorganized Debtors. However, the Plan will not affect the
ability of such claimants to derive any recovery from non-Debtor parties in the
Class Action Proceedings.(57)
 
     Pursuant to the Bankruptcy Code, classes which shall not receive a
distribution under a plan of reorganization are deemed to reject such plan.
Accordingly, the Debtors will not solicit votes of holders of Claims in Class 7.
The claimants in the Class Action Proceedings believe the deemed rejection of
the Plan by Class 7 will require that the Debtors seek confirmation of the Plan
pursuant to the "cramdown" provision of Section 1129(b) of the Bankruptcy Code.
(See Section V(B)(2)(d)).
 
     Class 9 -- Intercompany Claims
 
     On the Effective Date, all Intercompany Claims shall be expunged, released
and discharged and holders of such Claims shall receive no distributions of any
kind under this Plan. The treatment of Intercompany Claims in Class 9 will
affect the claims, rights or interests of Lone Star arising from intercompany
transfers of cash pursuant to the Cash Management Orders (see Section III(C) for
a discussion of the Cash Management Orders) because when the Debtors emerge from
Chapter 11 following Confirmation such items are eliminated from their books and
records to reflect the substantive consolidation of their estates and the
treatment of Intercompany Claims under the Plan. As of the date hereof, the
Debtors estimate that, on the Effective Date, the aggregate amount of
Intercompany Claims will be $869,566,809.
 
E.  MEANS OF EXECUTION RESPECTING THE PLAN
 
     1.  FUNDING OF THE PLAN
 
     The funds necessary to make the payments required under the Plan will be
supplied from revenues generated from operations and from asset sales
consummated prior to Confirmation. In addition, the Plan will also be funded
from post-Confirmation sales of the Debtors' Non-Core Assets. As set forth more
fully in subsection 2 immediately below, following Confirmation of the Plan, the
Debtors' interests in any remaining Non-Core Assets will be transferred to NewCo
and will be administered by NewCo until sold. The Debtors anticipate that it
will take approximately 24 months following the Effective Date to complete the
disposition of the Non-Core Assets and that such sales will generate gross
proceeds of between approximately $118.0 to $180.0 million.
 
     2.   POST-CONFIRMATION ASSET DISPOSITIONS
 
     a.   Transfer of Non-Core Assets to NewCo
 
     Following Confirmation, in order to facilitate dispositions of the Debtors'
remaining Non-Core Assets and in order to ensure maximum returns to creditors,
on the Effective Date of the Plan, the Debtors will transfer
 
- ---------------
 
57 The claimants in the Class Action Proceedings have asserted that the
   treatment of their claims under the Plan violates Section 510(b) of the
   Bankruptcy Code. These claimants assert that under that Section, their claims
   must be treated equally with the interests of holders of common stock. The
   Debtors dispute this assertion and contend that Section 510(b) only requires
   that the claims related to or arising from the Class Action Proceedings
   receive the same priority as common stock interests. Therefore, the Debtors
   believe that, as long as all senior classes of claims or interests receive
   their full distributions under the Plan before the claimants in the Class
   Action Proceedings or the holders of common stock interests receive any
   distribution, the Plan complies with Section 510(b) of the Bankruptcy Code.
   In addition, because the claimants in the Class Action Proceedings may look
   to certain non-Debtor third party sources to satisfy their claims, the
   Debtors believe there is a reasonable basis to provide separate treatment for
   such claimants under the Plan. However, the claimants in the Class Action
   Proceeding believe that the satisfaction of their claims which were asserted
   against non-Debtor parties in the Class Action Proceedings does not
   constitute a basis for depriving Class 7 of a distribution under the Plan,
   and have advised the Debtors that they intend to oppose confirmation of the
   Plan on this basis. As noted, the Debtors believe that the treatment of Class
   7 under the Plan is reasonable and appropriate and believe that they can
   confirm the Plan despite any such opposition.
 
                                       91
<PAGE>   99
 
their interests in any remaining Non-Core Assets (including liabilities
associated therewith and subject to valid and perfected existing liens and
security interests) to NewCo. As set forth in the Plan, among other things,
holders of Allowed Unsecured Claims will receive their Pro Rata shares of Asset
Proceeds Notes issued pursuant to the Asset Proceeds Note Indenture, the form of
which is annexed hereto as Exhibit "M". Disposition of the Non-Core Assets will
be administered by NewCo and the proceeds therefrom will be used to satisfy the
obligations under the Asset Proceeds Notes.
 
     The Debtors believe that transferring the Non-Core Assets to NewCo (which
will be a subsidiary of Reorganized Lone Star) is administratively more
efficient than would Reorganized Lone Star's retention of such assets and will
assist in enhancing the value of Reorganized Lone Star. In particular, the
transfer of such assets to NewCo will provide a clearer demarcation between
Reorganized Lone Star and the Non-Core Assets which are effectively being held
for the benefit of holders of Allowed Unsecured Claims. As such, any party
conducting an analysis of the ongoing enterprise will be able to clearly
understand the structure, assets and liabilities of Reorganized Lone Star rather
than having to evaluate it by categorizing it into ongoing and liquidating
components. Furthermore, the Debtors do not believe that there will be
additional significant costs arising as a result of this structure nor should
such structure expose Reorganized Lone Star to any increased liability (except
in connection with its guarantee of the Asset Proceeds Notes as described at
page 98) since it is anticipated NewCo will maintain all corporate formalities
required by law (i.e., maintenance of books and records, meetings of directors,
etc.).
 
        As described in Subsection (c) below, Reorganized Lone Star and NewCo
will enter into an agreement pursuant to which Reorganized Lone Star will make
management personnel available to market and seek to dispose of the Non-Core
Assets on NewCo's behalf. Such personnel will consist primarily of those
members of the Debtors' management who presently oversee the Debtors'
post-petition asset disposition program which, to date, has brought in excess
of $155,000,000 into the Debtors' estates. These individuals are most familiar
with the Non-Core Assets and are presently engaged in efforts to dispose of
same. Thus, the Debtors believe it is logical and more efficient to have such
individuals administer the disposition of the Non-Core Assets by NewCo.(58)
Furthermore, since certain of the Non-Core Assets include interests in joint
ventures, the Debtors believe that their relationship with their joint venture
partners will facilitate the disposition of such interests.(59)
 
     NewCo's sources of cash to pay the Asset Proceeds Notes and to operate
(including the payment of its expenses), maintain and market the Non-Core Assets
shall include a $5 million cash capitalization from Reorganized Lone Star on the
Effective Date, revenues and distributions from operation of the Non-Core Assets
and Cash received from asset dispositions after the Effective Date. The $5
million to be transferred to NewCo on the Effective Date was determined by the
Debtors' management, in their business judgment, as being that amount of cash
which would be reasonably necessary to sustain NewCo's operations based upon an
analysis of NewCo's anticipated revenues and expenditures.
 
     b.   Security for NewCo Notes
 
     The Asset Proceeds Notes will be secured by first priority liens and
security interests, as the case may be, on all of the assets of NewCo (i.e., the
Non-Core Assets which will be transferred to NewCo on the Effective Date)
pursuant to a Collateral Agency Agreement, the form of which is annexed hereto
as Exhibit "G". In addition, on the Effective Date, Reorganized Lone Star shall
execute the Reorganized Lone Star Guarantee in
 
- ---------------
 
58 The Debtors have not ruled out the possibility of retaining an investment
   banking firm to coordinate and oversee the disposition of all or certain
   Non-Core Assets. However, given the efforts and experience of the individuals
   currently overseeing the Debtors' asset disposition program, and the success
   of such program, the Debtors believe it is logical for such individuals to
   manage NewCo's asset disposition program. Contributing to this determination
   is the fact that, prior to the Filing Date, the Debtors had retained an
   investment banking firm to dispose of certain assets but, after incurring
   substantial fees, such firm's efforts proved to be largely unsuccessful.
   Furthermore, retention of such a firm, at least initially, could delay
   efforts to dispose of the NonCore Assets since any such firm would need a
   period of time to become familiar with the assets which, in turn, would
   necessarily require significant input from management of Reorganized Lone
   Star.
 
59 Indeed, due to the nature of such ventures, the Debtors' partners may be the
   likely purchasers of the Debtors' interests therein.
 
                                       92
<PAGE>   100
 
the form annexed hereto as Exhibit "N", pursuant to which Reorganized Lone Star
shall guarantee certain of the obligations of NewCo under the Asset Proceeds
Notes.
 
     Specifically, Reorganized Lone Star shall guarantee only the Covered
Deficiency and recourse against Reorganized Asset Proceeds Notes, Reorganized
Lone Star shall either (i) pay the Asset Proceeds Note Trustee, in Cash, an
amount equal to the Covered Deficiency, or (ii) issue unsecured promissory notes
in the amount of the Covered Deficiency as provided in the Reorganized Lone Star
Guarantee. Additionally, the Reorganized Lone Star Guarantee shall be secured by
Reorganized Lone Star's pledge of its right, title and interest in all issued
and outstanding common stock of NewCo pursuant to the Pledge Agreement, the form
of which is annexed hereto as Exhibit "R".
 
     c.   Procedures and Related Matters Respecting Dispositions of Non-Core
          Assets
 
     It is expected that Reorganized Lone Star and NewCo will enter into a
management services agreement, to be effective upon the Effective Date, pursuant
to which Reorganized Lone Star would agree to furnish services to NewCo
including financial, tax, data processing, insurance, human resources, legal,
technical and cash management. Under the management services agreement,
Reorganized Lone Star will be compensated by NewCo for any out-of-pocket
expenses incurred in connection with NewCo's business and Reorganized Lone Star
will be paid a quarterly fee based on Reorganized Lone Star's selling, general
and administrative expenses relating to the assets owned by NewCo during the
quarter.
 
     In addition, as noted in Subsection (a) above, Reorganized Lone Star and
NewCo will enter into a separate agreement(60) (also to be effective on the
Effective Date), pursuant to which management personnel of Reorganized Lone Star
experienced in the disposition of assets will actively seek to dispose of the
Non-Core Assets for NewCo on the best terms available.(61) In connection
therewith, the Non-Core Assets will be marketed by preparing financial and
marketing information and contacting potential buyers, including cement and
construction companies (both domestic and foreign), and, if appropriate,
financial buyers.
 
     Reorganized Lone Star's services on behalf of NewCo will be subject to
review by the Board of Directors of NewCo and will be terminable by either party
upon ninety days notice to the other. The Debtors believe that this ninety day
period should provide NewCo with sufficient time to locate another entity to
provide such financial, tax and other services which will be provided by
Reorganized Lone Star under the management services agreement.
 
     The Board of Directors of NewCo shall consist of executives of Reorganized
Lone Star who shall be designated and identified on or prior to Confirmation. As
Non-Core Assets are disposed of by NewCo and other funds are received by it,
payments will be made on the Asset Proceeds Notes. Upon full payment of the
interest and principal of such notes, funds of NewCo will be dividended to
Reorganized Lone Star (after deduction of amounts necessary to satisfy incentive
bonuses, if any).
 
     Additionally, in connection with post-Confirmation Non-Core Asset
dispositions, the Debtors are in the process of developing an incentive plan for
the benefit of those key individuals who will market the Non-Core Assets in
order to help ensure that values obtained for the Non-Core Assets are maximized.
The Debtors will file appropriate documentation respecting this incentive plan
with the Bankruptcy Court prior to Confirmation. Such documentation shall be in
a form reasonably acceptable to the Creditors' Committee. In general, it is
anticipated that this plan will be based upon the attainment of a certain
minimum level of proceeds from dispositions of the Non-Core Assets. Incentive
payments will be made only after the Asset Proceeds Notes have been paid in
full.
 
     Participants in the incentive plan being developed by the Debtors will
include key Reorganized Lone Star executives. NewCo's Board of Directors would
be able to expand the initial list of participants should
 
- ---------------
 
60 The form of this agreement and the management services agreement will be
   filed with the Bankruptcy Court prior to Confirmation and shall be reasonably
   acceptable to the Creditors' Committee.
 
61 Any fees under such agreement shall be paid to Reorganized Lone Star and not
   the individuals who will manage NewCo's asset disposition program.
 
                                       93
<PAGE>   101
 
circumstances warrant. Mr. Wallace, the Debtors' Chairman, will not be eligible
to receive incentive payments.
 
     After payment of the Asset Proceeds Notes in full, a pool of 20% of the net
proceeds from remaining Non-Core Asset dispositions, up to a maximum of $5
million, will be available for distribution among eligible individuals.
Reorganized Lone Star's Board of Directors will determine the recipients and
amounts of the incentive payments. No individual will be able to receive greater
than 15% of the aggregate funds awarded. In addition, an individual would not be
eligible to receive an incentive payment unless he/she was employed by
Reorganized Lone Star on the date(s) such payments are to be distributed.
 
     3.   TREATMENT OF EXECUTORY CONTRACTS AND UNEXPIRED LEASES
 
     Pursuant to the Plan, all executory contracts and unexpired leases, other
than those relating to Non-Core Assets, which have not been rejected and
disaffirmed prior to the Confirmation Date (or that are not at the Confirmation
Date the subject of pending applications to reject and disaffirm) shall be
deemed assumed by the Debtors. In addition, all obligations and agreements
respecting the Debtors' retirement plan for outside directors will be assumed
pursuant to the Plan.
 
     Exhibit "O" annexed hereto lists those executory contracts or unexpired
leases which will be assumed pursuant to the Plan with respect to which the
Debtors believe that defaults exist which must be cured. In accordance with
Section 1123(a)(5)(G) of the Bankruptcy Code, all defaults respecting such
executory contracts or unexpired leases shall be cured by (i) making a Cash
payment of only those amounts set forth in proofs of claims or where no such
claim has been filed, as determined by the Debtors without objection by the
Creditors' Committee, or (ii) on such other terms as agreed to in writing
between the Debtors and such claimants, but in neither event greater than the
amounts set forth on Exhibit "O" annexed hereto; unless an objection is filed
with the Bankruptcy Court and served on counsel to the Debtors and counsel to
the Committees on or prior to the date set by the Bankruptcy Court for filing
objections to Confirmation of the Plan, and the Court after notice and hearing
determines that the Debtors are obligated to pay a different amount as cure
under Section 365 of the Bankruptcy Code. In addition, executory contracts
(including, without limitation, partnership agreements) and unexpired leases as
identified on Exhibit "A" to the Plan respecting those Non-Core Assets which are
to be transferred to NewCo pursuant to the Plan, shall, as of the Effective
Date, be deemed assumed by the Debtors and assigned to NewCo pursuant to Section
365 and 1123 of the Bankruptcy Code and defaults thereunder, if any, will be
cured in the manner set forth above.
 
     4.   RELEASES
 
     The Plan provides that on the Effective Date, in consideration for past and
future services, and other valuable consideration, all of the Debtors' present
and former officers, directors, agents, employees, Professionals and counsel,
and the Committees, and their respective members, agents, Professionals and
counsel (collectively, the "Released Parties"), shall be deemed discharged and
released from any and all claims asserted or assertable by any Person arising in
any way out of such Person's relationship with or work performed for the Debtors
on or prior to the Effective Date; provided, however, that the foregoing
discharge and release shall only apply to those claims for which the Released
Parties are entitled to indemnification by the Debtors pursuant to applicable
laws or as provided in any of (i) Lone Star's Restated Certificate of
Incorporation in effect prior to or as of the date hereof, (ii) Lone Star's
by-laws in effect prior to or as of the date hereof, (iii) any agreement with
Lone Star, or (iv) the certificates of incorporation, by-laws or similar
documents or agreements of any of Lone Star's subsidiaries as in effect prior to
or as of the date hereof, in each case with respect to matters occurring on or
prior to the Effective Date. Because the Debtors intend to assume their
indemnification agreements, as discussed above, the Debtors believe that the
release provisions are appropriate because such releases will free the Debtors
from indemnity claims which may otherwise be
 
                                       94
<PAGE>   102
 
asserted by the Debtors' officers, directors, agents and employees if claims
were asserted against such persons.(62)
 
     However, pursuant to the Plan, the foregoing discharge and release shall
not apply to (i) any individuals or entities which have been released prior to
the Effective Date by order of the Bankruptcy Court and as to such individuals
or entities, the terms of their respective releases shall govern, (ii) any
individuals or entities which are the subject of a proceeding to recover
property or money commenced by the Debtors prior to the Effective Date or (iii)
any claims asserted or assertable by or against any of the Debtors' present or
former officers or directors in the Class Action Proceedings described in
Section III(G)(4)(b) of this Disclosure Statement.(63)
 
     The Equity Committee has indicated its belief that the release provisions
are too broad and violate the Bankruptcy Code. The Equity Committee has further
indicated that it intends to object to the release provisions of the Plan at
Confirmation. The Debtors, however, believe that such release provisions are
appropriate and do not violate the Bankruptcy Code. If this issue cannot be
resolved consensually, the Bankruptcy Court may have to resolve the dispute.
Ultimately, if a decision is rendered in favor of the Equity Committee, the
Plan's release provisions may have to be modified.
 
     5.   DESCRIPTION OF DOCUMENTS TO BE ENTERED INTO IN CONNECTION WITH THE
          PLAN
 
     Provided below is a brief summary of the salient provisions of each of the
documents contemplated to be entered into in connection with the implementation
of the Plan, forms of which are annexed as exhibits hereto.
 
     a.   Reorganized Lone Star Charter and By-Laws
 
     As previously noted, Reorganized Lone Star will be a Delaware corporation.
In order to facilitate the establishment of Reorganized Lone Star, on or about
the Confirmation Date, Lone Star's Certificate of Incorporation (the
"Certificate") shall be amended and restated in order to reflect certain changes
arising in connection with such reorganization. In particular, the amended
Certificate will authorize Reorganized Lone Star's issuance of 25,000,000 shares
of common stock, par value of $1. A copy of the amended and restated Certificate
is annexed hereto as Exhibit "H."
 
     Additionally, in connection with the amendment of the Charter, on or about
the Effective Date, Reorganized Lone Star will adopt new by-laws, the form of
which is annexed hereto as Exhibit "I." The salient provisions of the by-laws
are as follows:
 
     - Number of Directors on Board.  Subject to the requirements of the laws of
the State of Delaware and the amended Certificate, Reorganized Lone Star's Board
of Directors may determine the number of directors, which number shall not be
less than three but not more than 18 directors. Directors need not be
stockholders.
 
     - Election and Removal of Directors.  At each annual meeting of
stockholders, directors shall be elected. If a stockholder intends to nominate a
candidate for election to the Board of Directors at such meeting, such
stockholder must deliver notice to the Secretary of Reorganized Lone Star
setting forth, among other things, (i) the name, business addresses and
residence of each nominee the stockholder wishes to nominate for election or
reelection as a director, (ii) the class and number of shares of capital stock
of Reorganized Lone Star beneficially owned by both the nominee and the
stockholder and (iii) any other information required under the rules and
regulations of the Securities Exchange Commission. Any director or all of the
Directors may be removed from office at any time, with or without cause.
 
- ---------------
 
62 The Debtors are not aware of any claims of non-Debtor parties, either direct
   or indirect, which would be released pursuant to the Plan. In addition, the
   Debtors do not anticipate requesting that parties execute releases.
 
63 Thus, among others, the releases granted pursuant to the Plan are not
   applicable to individuals listed in the Cahill Report with whom the Debtors
   have achieved a settlement or against whom the Debtors shall commence
   litigation.
 
                                       95
<PAGE>   103
 
     - Action by Consent.  Any action required or permitted to be taken at any
meeting of Reorganized Lone Star's Board of Directors may be taken by unanimous
written consent of the directors and the writings are filed with the minutes of
the proceedings.
 
     - Remuneration.  Unless expressly provided by resolution adopted by the
Board of Directors, none of the directors shall receive any stated compensation
for his or her services. However, the Board of Directors may, by resolution,
provide that a specified sum shall be paid to any director of Reorganized Lone
Star, either as annual compensation as a director or member of any committee.
 
     - Election and Removal of Officers.  Officers shall be elected annually by
Reorganized Lone Star's Board of Directors. In addition, any officer may be
removed, with or without cause, by a vote of a majority of the whole Board of
Directors.
 
     - Indemnification Rights.  Reorganized Lone Star shall indemnify any person
who was or is a party or is threatened to be made a party to any threatened,
pending or completed action, suit or proceeding, whether civil, criminal,
administrative or investigative (other than an action by or in the right of
Reorganized Lone Star) by reason of the fact that such person is or was a
director, officer, employee or agent of Reorganized Lone Star. With respect to
actions by or in the right of Reorganized Lone Star, Reorganized Lone Star shall
indemnify such individuals if such individuals acted in good faith and in a
manner reasonably believed to not be opposed to the best interests of
Reorganized Lone Star.
 
     b.   NewCo Charter and By-Laws
 
     In connection with the implementation of the Plan, on or about the
Confirmation Date NewCo will be incorporated pursuant to the laws of the State
of Delaware. Pursuant to its certificate of incorporation, among other things,
NewCo shall have the authority to issue one thousand shares of common stock, par
value $1. The form of NewCo's certificate of incorporation is annexed hereto as
Exhibit "P."
 
     In connection with the incorporation of NewCo and pursuant to the laws of
the State of Delaware, on or about the Confirmation Date, NewCo shall adopt
by-laws, the form of which is annexed hereto as Exhibit "Q." The salient
provisions of such by-laws are as follows:
 
     - Number of Directors.  The NewCo Board of Directors shall consist of at
least three but not more than 18 executives of Reorganized Lone Star to be
designated and identified on or prior to Confirmation. The number of directors
may be changed by a resolution of a majority of the Board of Directors.
 
     - Election and Removal of Directors.  Directors of NewCo shall be elected
at each annual meeting of stockholders by a plurality of the votes cast and
shall hold office until the next annual meeting of stockholders. Any or all of
the directors may be removed from office at any time, with or without cause.
 
     - Compensation.  Directors shall receive such compensation as the NewCo
Board of Directors shall determine, together with reimbursement of their
reasonable expenses incurred in connection with the performance of their duties.
 
     - Election and Removal of Officers.  Officers shall be elected annually by
the NewCo Board of Directors. In addition, any officer may be removed, with or
without cause, by a vote of a majority of the whole Board of Directors.
 
     - Indemnification Rights.  NewCo shall indemnify any person who was or is a
party or is threatened to be made a party to any threatened, pending or
completed action, suit or proceeding, whether civil, criminal, administrative or
investigative by reason of the fact that such person is or was a director,
officer, employee or agent of NewCo.
 
     c.   Senior Note Indenture
 
     The Senior Note Indenture, the form of which is annexed hereto as Exhibit
"L", is the indenture to be dated as of the Effective Date, between Reorganized
Lone Star and the Senior Note Trustee, pursuant to which Reorganized Lone Star
shall issue the Senior Notes. As previously noted, the Senior Notes shall be
 
                                       96
<PAGE>   104
 
issued in the aggregate principal amount of $75,000,000, shall bear simple
interest at the rate of ten percent (10%) per annum payable in semi-annual
installments, shall mature on July 31, 2003 and shall be the subject of a
guarantee to be executed by certain affiliates of Reorganized Lone Star. In
addition to the foregoing, the Senior Note Indenture contains, among others, the
following salient provisions:
 
     - Mandatory Redemption Upon Disposition of Assets.  Upon the disposition of
a material amount of assets (as such term is used in the Senior Note Indenture),
the net proceeds of such disposition, after setting aside a certain amount of
such proceeds, are to be deposited with the Senior Note Trustee to be used to
redeem outstanding Senior Notes at a price equal to the redemption price plus
accrued and unpaid interest. However, should Reorganized Lone Star, in good
faith, determine to reinvest such net proceeds contemporaneously with their
receipt (defined as 2 years from sale date of the acquisition or improvement of
assets), the net proceeds realized from such disposition will not be required to
be used to redeem the Senior Notes.
 
     - Sinking Fund.  Reorganized Lone Star shall make three annual payments of
$10,000,000 each into a sinking fund account commencing in the year 2000 for
redemption of the Senior Notes. The amount of such required sinking fund
payments may be reduced by the principal amount of any Senior Notes which
Reorganized Lone Star redeemed or purchased on the open market prior to such
dates.
 
     - Covenants and Events of Default.  The Senior Note Indenture includes
standard covenants and covenants for public debt including, but not limited to,
(i) restrictions in Reorganized Lone Star's ability to declare dividends (other
than dividends payable solely in common stock of Reorganized Lone Star) on any
of its common stock or make any payment on account of the purchase, redemption
or other retirement of any shares of such stock or make any distribution in
respect thereof and (ii) limitations on Reorganized Lone Star's total borrowed
funds and liens.
 
     d.   Asset Proceeds Note Indenture
 
     The Assets Proceeds Note Indenture, the form of which is annexed hereto as
Exhibit "M", is the indenture to be dated as of the Effective Date, between
NewCo and the Asset Proceeds Note Trustee, pursuant to which NewCo shall issue
the Asset Proceeds Notes. As previously noted, the Asset Proceeds Notes are
those notes to be issued by NewCo in the aggregate principal amount of
$138,118,000 less an adjustment to reflect the aggregate net proceeds received
from disposition of the Non-Core Assets consummated prior to the Effective Date.
The Asset Proceeds Notes shall bear simple interest at the rate of ten percent
(10%) per annum payable in cash or additional Asset Proceeds Notes in
semi-annual installments and shall mature on July 31, 1997. In addition to the
foregoing, the Asset Proceeds Notes Indenture contains, among others, the
following salient provisions:
 
     - Redemption Upon Non-Core Asset Dispositions.  Following each disposition
of Non-Core Assets by NewCo, the net proceeds received as a result of such
disposition (after setting aside Cash reserves such that NewCo shall have Cash
equal to at least $5,000,000) shall be deposited into a cash collateral account,
which account shall be established in accordance with the Collateral Agency
Agreement, executed contemporaneously therewith and so long as there is at least
$5,000,000 in such account after deposit of the net proceeds. All amounts in
this cash collateral account shall be used to redeem the Asset Proceeds Notes at
the then current redemption price.
 
     - Covenants and Restrictions.  NewCo shall not declare any dividends (other
than dividends payable solely in common stock of NewCo) on its common stock or
make any payment on account of the purchase, redemption or other retirement of
any shares of such common stock or make any distribution in respect thereof.
 
     - Limitation on Additional Indebtedness and Liens.  NewCo shall not
directly or indirectly create, incur, issue, assume, guarantee or otherwise
become directly or indirectly liable with respect to any indebtedness other than
Permitted Indebtedness or allow to exist any liens on its assets other than the
Permitted Liens (as defined in the indenture to include, among other liens,
liens which may be granted to secure and/or maintain a working capital loan and
liens existing on the Effective Date).
 
                                       97
<PAGE>   105
 
     - Guarantee.  A portion of NewCo's obligations under such indenture shall
be guaranteed by the Reorganized Lone Star Guarantee and shall be secured by the
Pledge Agreement and Collateral Agency Agreement (all as described below).
 
     e.   Collateral Agency Agreement
 
     The Collateral Agency Agreement, the form of which is annexed hereto as
Exhibit "G", is the agreement to be dated as of the Effective Date, between
NewCo and the Asset Proceeds Note Trustee, pursuant to which NewCo shall pledge
and grant liens and security interests in all of the assets of NewCo in order to
secure its obligations under the Asset Proceeds Notes. In addition to the
foregoing, the Collateral Agency Agreement contains, among others, the following
salient provisions:
 
     - Release of Pledged Collateral.  NewCo may dispose of the pledged assets
(i.e., Non-Core Assets) in any transaction or series of transactions approved by
its Board of Directors whereupon the assets disposed of shall be released from
the security interests created by this agreement. The Cash proceeds of such sale
shall be held in the cash collateral account established pursuant to this
agreement from which net proceeds, in excess of $5,000,000, shall be used to
redeem or retire the Asset Proceeds Notes. In the event that such proceeds are
non-Cash, such proceeds shall be held as pledged collateral under this
agreement.
 
     f.   Reorganized Lone Star Guarantee
 
     The Guarantee Agreement, the form of which is annexed hereto as Exhibit
"N", provides for Reorganized Lone Star's guarantee of certain obligations of
NewCo under the Asset Proceeds Note Indenture. This guarantee shall be secured
by a pledge of Reorganized Lone Star's right, title and interest in all issued
and outstanding common stock of NewCo pursuant to a Pledge Agreement (described
below) and which guarantee shall provide that recourse against Reorganized Lone
Star shall be limited to the Covered Deficiency (an amount not to exceed
$20,000,000 plus interest). Upon maturity of the Asset Proceeds Notes (or any
extension thereof pursuant to its terms) Reorganized Lone Star shall, if
necessary, (i) pay to the Asset Proceeds Note Trustee, in Cash, an amount equal
to the Covered Deficiency, and/or (ii) issue promissory notes in the amount of
the Covered Deficiency, which notes shall mature on July 31, 2002 and shall bear
interest at the rate of 300 basis points above the then current yield for five
year U.S. Treasury obligations as of the date of the issuance of such
deficiency. Also as provided in the Asset Proceeds Note Indenture, upon maturity
of such notes, the Asset Proceeds Note Trustee may either (i) (a) enforce the
Reorganized Lone Star Guarantee and, upon the payment or issuance of promissory
notes of Reorganized Lone Star pursuant to the terms of such guarantee, there
shall be a corresponding reduction of the Asset Proceeds Notes and b) enforce
its rights against the Non-Core Assets to satisfy the remaining obligations, if
any, under the Asset Proceeds Notes, or (ii) defer, with the approval of the
requisite percentage of the holders of such notes, enforcing the Reorganized
Lone Star Guarantee and its rights under the Asset Proceeds Note Indenture for
up to three one-year periods from the original maturity date of such notes.
 
     g.   Pledge Agreement
 
     The Pledge Agreement, a form of which is annexed hereto as Exhibit "R", is
the agreement, dated as of the Effective Date, between Reorganized Lone Star,
the Asset Proceeds Note Trustee and the Collateral Agent, pursuant to which
Reorganized Lone Star, in order to secure its obligations under the Reorganized
Lone Star Guarantee, shall pledge its right, title and interest in all issued
and outstanding common stock of NewCo.
 
     h.   Warrant Agreement
 
     The Warrant Agreement, a form of which is annexed hereto as Exhibit "S", is
the agreement, dated as of the Effective Date, between Reorganized Lone Star and
a warrant agent, pursuant to which Reorganized Lone Star shall issue warrants to
purchase 3,333,333 shares of New Lone Star Common Stock. The Warrant Agreement
sets forth the terms and conditions respecting the exercise of the Reorganized
Lone Star Warrants including establishing the exercise price of such warrants at
$19.75 and providing that such warrants shall be
 
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<PAGE>   106
 
exercisable until December 31, 1998. The $19.75 warrant exercise price was
designed to provide equity holders $5,000,000 of value (based on the Debtors'
valuation).64 The Reorganized Lone Star Warrants were valued at $5,000,000 using
the Black Sholes option valuation formula, a widely used method for valuing
warrants. The Reorganized Lone Star Warrants would have significantly more value
if the Argosy valuation ranges ultimately prove to be correct.
 
     In addition to the foregoing, the Warrant Agreement contains the following
salient provisions:
 
     - Call Provisions.  Reorganized Lone Star shall have the right to redeem
any or all of the Reorganized Lone Star Warrants, at $0.01 per Warrant, subject
to adjustment, on or after December 31, 1996, in the event that the closing
price of Reorganized Lone Star Common Stock for any thirty consecutive trading
days exceeds $23.70.(65)
 
     - Adjustments.  The number of shares of Reorganized Lone Star Common Stock
purchasable upon the exercise of each Warrant and the Warrant price shall be
subject to adjustment if Reorganized Lone Star (i) pays a dividend in shares of
Reorganized Lone Star common stock, (ii) subdivides its outstanding shares of
common stock, (iii) combines its outstanding shares of common stock into a
smaller number of common stock, or (iv) issues by reclassification or
recapitalization of its shares of common stock, other securities of Reorganized
Lone Star. An adjustment will not result from Reorganized Lone Star's sale of
its common stock on the open market and the declaration of cash dividends.
 
     i.   Management Stock Option Plan
 
     In order to provide the officers and key management (the "Employees") of
Reorganized Lone Star with an increased incentive to make significant
contributions to the performance and growth of Reorganized Lone Star and its
subsidiaries, to increase stock ownership of employees, and to attract and
retain employees of exceptional ability, Reorganized Lone Star shall establish a
management stock option plan. In accordance with the provisions of this
management stock option plan, as described below, the plan shall be administered
by a compensation committee of Reorganized Lone Star's Board of Directors
consisting of non-inside directors. This committee shall have complete
discretion and authority to, among other things, authorize the grant of options,
determine the number of options to be granted (but not to exceed the maximum
amount specified below) and determine when such options shall be granted.
However, there is no assurance that options will be granted pursuant to this
plan. In addition, assuming options are granted, the value thereof cannot
presently be determined because such value will be based upon market factors
existing at the time such options are granted and exercised. The form of
management stock option plan is annexed hereto as Exhibit "T." Following are,
among others, the salient provisions of the management stock option plan:
 
     - Administration.  The plan shall be administered by a compensation
committee of Reorganized Lone Star's Board of Directors appointed by such Board
consisting of two or more members who shall be "disinterested persons" within
the meaning of Rule 16b-3 promulgated under the Securities Exchange Act of 1934.
This committee shall have authority in its discretion to, among other things,
(i) grant options under this plan, (ii) select employees to receive options, and
(iii) determine the number of options to be granted to each employee.
 
     - Eligibility and Participation.  The class of employees eligible to
receive stock options under such plan are officers and other key management
employees who shall be selected by the committee from those employees who, in
the opinion of the Committee are in positions which enable them to make
significant contributions to the performance and growth of Reorganized Lone Star
and its subsidiaries.
 
- ---------------
 
64 In addition, the exercise price was negotiated by the Debtors and the
   Creditors' Committee in order to allow the aggregate recovery to holders of
   Allowed Unsecured Claims (at the midpoint) to approximate 100% of such
   Allowed Claims before any value would inure to holders of Stock Interests
   through the exercise of the Reorganized Lone Star Warrants.
 
65 Such provisions are not uncommon with respect to warrants. Furthermore,
   Reorganized Lone Star's right to redeem the warrants should help preserve and
   protect the value of the New Lone Star Common Stock by adding certainty and
   finality respecting the exercise of such warrants. In addition, the Debtors
   believe that the terms of such warrants provide the holders thereof with
   sufficient time to determine whether to exercise such warrants.
 
                                       99
<PAGE>   107
 
     - Determination of Option Price.  The option price of a share of common
stock covered by each stock option shall be determined by the committee but
shall not be less than the fair market value of a share of common stock on the
date of grant of such stock option. The fair market value shall be the average
of trading prices of a share of common stock on the date of grant of the stock
option.
 
     - Stock Options.  Subject to adjustment, the aggregate number of shares
of Reorganized Lone Star Common Stock which may be issued under options and
which shall be reserved for purposes of this plan shall be 700,000.(66) Stock
options to purchase full shares of common stock, par value $1 per share, of
Reorganized Lone Star may at the discretion of the committee be Incentive Stock
Options (as defined in Section 422(A) of the Internal Revenue Code).
 
     - Option Agreements.  Each stock option shall be evidenced by an option
agreement containing such terms and conditions, consistent with the provisions
of such plan, as the committee shall from time to time determine. Such terms and
conditions, at the discretion of the committee, may include, without limitation,
provisions with respect to the time or times at which the stock option is
exercisable, the effect of termination of employment upon right of exercise, the
manner of exercise of such stock option, and payment of income tax withholding
requirements in connection with the exercise of a Non-Incentive Stock Option.
 
     - Option Term.  The term within which each stock option is exercisable
shall be for such period as the committee may determine, but such term shall not
exceed a period of ten years in the case of Incentive Stock Options and ten
years and one day in the case of Non-Incentive Stock Options from the date of
grant of an option.
 
     - Adjustments Upon Changes in Capitalization.  In the event of changes in
Reorganized Lone Star's common stock by reason of stock dividends, stock-splits,
recapitalization, mergers, consolidations, combinations or exchanges of shares
and the like, the maximum number of shares of common stock subject to the
management stock option plan and the number of shares and option price per share
of all stock subject to outstanding options shall be adjusted as necessary to
maintain the proportionate interests of the options and preserve, without
exceeding, the value of the options.
 
     - Limit on Value of Stock Options.  The aggregate fair market value
(determined as of the time the option is granted) of common stock with respect
to which Incentive Stock Options are exercisable for the first time by an
employee during any calendar year shall not exceed $100,000. There is no limit
on value of non-incentive stock options.
 
     -   Termination of Employment.  During its term, an option may be exercised
both while the holder thereof continues to be an employee and during the three
month period following termination of employment. Such three month period shall
be one year in the case of disability or of death.
 
     j.   Directors' Stock Option Plan
 
     In order to attract ownership in Reorganized Lone Star by outside directors
of Reorganized Lone Star whose continued services are considered essential to
Reorganized Lone Star's growth and progress, and to provide them with a further
incentive to continue as directors, Reorganized Lone Star shall establish a
directors' stock option plan. The salient provisions of this plan are as
follows:
 
     -   Participation in the Plan.  Each non-employee member of the Board of
Directors shall be a participant in the Plan. No person who is also an employee
of Reorganized Lone Star or one of its subsidiaries shall be a participant
except with respect to any options received prior to becoming an employee.
 
- ---------------
 
66 In the event such options are granted, it could result in a dilution of the
   aggregate amount of New Lone Star Common Stock to be issued pursuant to the
   Plan of approximately 5.5% (based upon the maximum number of shares which
   could be issued pursuant to this stock option plan). The Debtors believe that
   any such dilution is justified since the stock option plan is designed, among
   other things, to provide incentive to the management of Reorganized Lone Star
   to make significant contributions to the performance and growth of
   Reorganized Lone Star. The Equity Committee reserves its right to object to
   the stock options to be granted pursuant to the Plan.
 
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<PAGE>   108
 
     - Stock Options.  Commencing in 1994 and continuing each year thereafter,
each director who was not an employee of Reorganized Lone Star or one of its
subsidiaries during the six month period preceding the date options are
distributed shall receive, on the first business day following the first meeting
of the Board of Directors to occur after Confirmation and thereafter on the
first business day following the final adjournment of Reorganized Lone Star's
annual meeting of stockholders (commencing with the annual meeting of
stockholders held during the first calendar year beginning after the Board of
Directors meeting resulting in the initial grant of options and continuing
thereafter during the term of this Plan) an option to purchase 1,000 shares of
Reorganized Lone Star's common stock, par value $1 per share, provided there is
a sufficient number of shares available; otherwise the number of shares subject
to such option shall be prorated among the eligible directors. Subject to
adjustment, the aggregate number of shares of Reorganized Lone Star Common Stock
which may be issued under options and which shall be reserved for purposes of
this plan shall be 50,000.
 
     - Determination of Option Price.  The option price of a share of common
stock covered by each stock option shall be the fair market value of a share of
Reorganized Lone Star's common stock on the date of the grant of such stock
option. Such fair market value shall be the average of the high and low prices
of a share of common stock in the New York Stock Exchange composite market
transactions on the date of the grant of the stock option. In no event shall the
purchase price be less than the par value of the shares.
 
     - Option Term.  Stock options shall be exercisable for ten (10) years from
the date of distribution.
 
     - Adjustments Upon Changes in Capitalization.  In the event of changes in
Reorganized Lone Star's common stock by reason of stock dividends, stock splits,
recapitalization, mergers, consolidations, or exchanges of shares and the like,
the maximum number of shares of common stock subject to this plan and the number
of shares and option price per share of all stock subject to outstanding options
shall be adjusted as shall be necessary to maintain the proportionate interests
of the options.
 
                 V. CONFIRMATION OF THE PLAN OF REORGANIZATION
 
     The following is a brief summary of the provisions of the Bankruptcy Code
respecting acceptance and confirmation of a plan of reorganization. Creditors
and interest holders are encouraged to review the relevant provisions of the
Bankruptcy Code and/or to consult their own attorneys.
 
A.  ACCEPTANCE
 
     This Disclosure Statement solicits Ballots for the acceptance of the Plan.
The Bankruptcy Code defines acceptance of a plan of reorganization by a class of
claims as acceptance by holders of at least two-thirds in dollar amount, and
more than one-half in number, of the claims of that class allowed under the
Bankruptcy Code that have actually voted or are deemed to have voted to accept
or reject the plan.
 
     The Bankruptcy Code defines acceptance of a plan of reorganization by a
class of interests (equity securities) as acceptance by at least two-thirds in
amount of the interests of that class allowed under the Bankruptcy Code that
have actually voted or are deemed to have voted to accept or reject the plan.
 
     ONLY HOLDERS OF CLAIMS OR STOCK INTERESTS IN IMPAIRED CLASSES WHOSE CLAIMS
ARE ALLOWED AS OF THE DATE INDICATED IN THE DISCLOSURE STATEMENT APPROVAL ORDER
SHALL BE ENTITLED TO VOTE ON THE PLAN. HOLDERS OF DISPUTED CLAIMS OR STOCK
INTERESTS AS OF THE DATE OF THE DISCLOSURE STATEMENT APPROVAL ORDER SHALL NOT BE
ENTITLED TO VOTE ON THE PLAN. HOWEVER, IN ACCORDANCE WITH THE BANKRUPTCY CODE
AND AS PROVIDED IN THE DISCLOSURE STATEMENT APPROVAL ORDER, PRIOR TO SUCH DATE,
HOLDERS OF DISPUTED CLAIMS OR STOCK INTERESTS MAY SEEK AN ORDER OF THE
BANKRUPTCY COURT ESTIMATING AND ALLOWING SUCH CLAIMS OR STOCK INTERESTS IN A SUM
CERTAIN AMOUNT SOLELY FOR PURPOSES OF VOTING ON THE PLAN, AND IN SUCH EVENT,
SUCH CLAIMANTS OR HOLDERS OF STOCK INTERESTS SHALL BE ENTITLED TO VOTE THEIR
CLAIMS OR STOCK INTERESTS IN THE AMOUNT DETERMINED BY THE BANKRUPTCY COURT.
 
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<PAGE>   109
 
     A HOLDER OF A CLAIM OR STOCK INTEREST WHO EXECUTES A BALLOT AND WHO FAILS
TO INDICATE ON SUCH BALLOT WHETHER IT ACCEPTS OR REJECTS THE PLAN WILL BE DEEMED
TO HAVE VOTED TO ACCEPT THE PLAN.
 
     A HOLDER OF A CLAIM OR STOCK INTEREST WHO FAILS TO EXECUTE THE BALLOT FOR
SUCH CLAIM OR INTEREST WILL NOT BE COUNTED AS EITHER ACCEPTING OR REJECTING THE
PLAN WITH RESPECT TO SUCH CLAIM OR STOCK INTEREST.
 
     A VOTE MAY BE DISREGARDED IF THE BANKRUPTCY COURT DETERMINES, AFTER NOTICE
AND A HEARING, THAT SUCH ACCEPTANCE OR REJECTION WAS NOT MADE OR SOLICITED OR
PROCURED IN GOOD FAITH OR IN ACCORDANCE WITH THE PROVISIONS OF THE BANKRUPTCY
CODE.
 
     If one or more impaired classes rejects the Plan, the Debtors may in their
discretion nevertheless seek Confirmation of the Plan if the Debtors believe
they will be able to meet the requirements of Section 1129(b) of the Bankruptcy
Code for Confirmation of the Plan (which are set forth in the following section
of this Disclosure Statement), despite lack of acceptance by all impaired
classes. The claimants in the Class Action Proceedings believe that the
treatment of Class 7 under the Plan will prevent the Debtors from satisfying the
requirements of Section 1129(b) of the Bankruptcy Code and such claimants have
advised the Debtors that they intend to oppose confirmation of the Plan on this
basis. The Debtors believe that the treatment of Class 7 under the Plan is in
accordance with Section 1129(b) of the Bankruptcy Code and that they will be
able to confirm the Plan despite any such opposition.
 
B.  CONFIRMATION AND CONSUMMATION
 
     1.   CONFIRMATION HEARING
 
     If sufficient acceptances are received and the Debtors determine to go
forward with the Plan, the hearing on Confirmation of the Plan will take place
on January 5, 1994 at 10:00 a.m.
 
     2.   STATUTORY REQUIREMENTS FOR CONFIRMATION OF THE PLAN
 
     At the Confirmation Hearing, the Bankruptcy Court shall determine whether
the requirements of Section 1129 of the Bankruptcy Code have been satisfied. If
so, the Bankruptcy Court shall enter an order confirming the Plan. Section 1129
of the Bankruptcy Code requires that:
 
     -  The plan satisfies the applicable provisions of the Bankruptcy Code.
 
     -  The debtor has complied with the applicable provisions of the Bankruptcy
       Code.
 
     -  The plan has been proposed in good faith and not by any means forbidden
       by law.
 
     -  Any payment made or promised by the debtor under the plan for services
       or for costs and expenses in, or in connection with, the Chapter 11 Case,
       or in connection with the plan and incident to the case, has been
       disclosed to the Bankruptcy Court, and any such payment made before the
       confirmation of the plan is reasonable, or if such payment is to be fixed
       after confirmation of the plan, such payment is subject to the approval
       of the Bankruptcy Court as reasonable.
 
     -  The debtor has disclosed the identity and affiliations of any individual
       proposed to serve, after confirmation of the plan, as a director,
       officer, or voting trustee of the debtor, an affiliate of the debtor
       participating in the plan with the debtor, or a successor to the debtor
       under the plan. The appointment to, or continuance in, such office of
       such individual, is consistent with the interests of creditors and equity
       security holders and with public policy, and the debtor has disclosed the
       identity of any insider that the reorganized debtor will employ or
       retain, and the nature of any compensation for such insider.
 
     -  With respect to each class of impaired claims or interests, either each
       holder of a claim or interest or such class has accepted the plan, or
       will receive or retain under the plan on account of such claim or
       interest, property of a value, as of the effective date of the plan, that
       is not less than the amount that
 
                                       102
<PAGE>   110
 
       such holder would receive or retain if the debtor was liquidated on such
       date under Chapter 7 of the Bankruptcy Code.
 
     -  Each class of claims or interests has either accepted the plan or is not
       impaired under the plan.
 
     -  Except to the extent that the holder of a particular claim has agreed to
       a different treatment of such claim, the plan provides that
       administrative expenses and priority claims (other than tax Claims) will
       be paid in full on the effective date and that priority tax Claims will
       receive on account of such claims deferred cash payments, over a period
       not exceeding six years after the date of assessment of such claim, of a
       value, as of the effective date, equal to the allowed amount of such
       claim.
 
     -  At least one impaired class of claims has accepted the plan, determined
       without including any acceptance of the plan by any insider holding a
       claim of such class.
 
     -  Confirmation of the plan is not likely to be followed by the
       liquidation, or the need for further financial reorganization, of the
       debtor or any successor to the debtor under the plan.
 
     Subject to receiving the requisite votes in accordance with Section 1129 of
the Bankruptcy Code, the Debtors believe (i) that the Plan satisfies all of the
statutory requirements of Chapter 11 of the Bankruptcy Code, (ii) they have
complied or will have complied with all of the requirements of Chapter 11, and
(iii) the proposal of the Plan is made in good faith. Set forth below is a more
detailed summary of the salient statutory confirmation requirements.
 
     a.   Best Interests of Creditors Test
 
     Before the Plan may be confirmed, the Bankruptcy Court must find (with
certain exceptions) that the Plan provides, with respect to each class, that
each holder of a Claim or Stock Interest in such class either (a) has accepted
the Plan or (b) will receive or retain under the Plan property of a value, as of
the Effective Date, that is not less than the amount that such person would
receive or retain if the Debtors were liquidated under Chapter 7 of the
Bankruptcy Code.
 
     Annexed hereto as Exhibit "E" is a Liquidation Analysis which demonstrates
that, in the opinion of the Debtors and their financial advisor, the Debtors'
creditors and shareholders will receive more under the Plan than such creditors
and shareholders would receive from a liquidation of the Debtors' estates.
Specifically, subject to the assumptions and other conditions set forth therein,
the Debtors' Liquidation Analysis provides that on liquidation the Debtors would
have proceeds available for satisfaction of claims of $592,870,000, on the low
end, and $684,655,000 on the high end. Based on such proceeds, as reflected in
the tables accompanying the Liquidation Analysis, unsecured creditors would
obtain a 78.8% (mid-point) recovery in a liquidation as compared to a 92.5%
recovery under the Plan (on a fully consensual basis), while holders of Allowed
Preferred Stock Interests would not receive any distribution in a liquidation as
compared to a 52.3% (midpoint) recovery under the Plan. Based on this
information, the Debtors believe that the best interest test will be satisfied
under the Plan.
 
     b.   Financial Feasibility
 
     The Bankruptcy Code requires the Bankruptcy Court to find, as a condition
to Confirmation, that Confirmation is not likely to be followed by the
liquidation of the Debtors or the need for further financial reorganization.
Included in the financial information annexed hereto as Exhibit "F" is a
pro-forma balance sheet of the Debtors prior to consummation of the Plan, and a
separate pro-forma balance sheet of the Debtors following consummation of the
Plan. In addition, included in Exhibit "F" are projections of the Debtors'
operations. Subject to the assumptions contained therein and the discussions set
forth herein and therein, these documents indicate that Confirmation of the Plan
is not likely to be followed by the liquidation of the Debtors or the need for
further financial reorganization following the consummation of the Plan. Thus,
the Debtors believe that the Plan complies with the financial feasibility
standard required for Confirmation.
 
                                       103
<PAGE>   111
 
     c.   Acceptance by Impaired Classes
 
     The Bankruptcy Code requires, as a condition to Confirmation, that each
class of Claims or Stock Interests that is "impaired" under the Plan accept the
Plan, with the exception described in the following section. A class that is not
"impaired" under a plan of reorganization is deemed to have accepted the plan
and, therefore, solicitation of acceptances with respect to such class is not
required. A class is "impaired" under a plan unless the plan (i) leaves
unaltered the legal, equitable and contractual rights to which the claim or
interest entitles the holder of such claim or interest; (ii) cures any default
and reinstates the original terms of the obligation; or (iii) provides that on
the consummation date, the holder of the claim or interest receives cash equal
to the allowed amount of such claim or, with respect to any interest, any fixed
liquidation preference to which the interest holder is entitled or any fixed
price at which the debtor may redeem the security.
 
     d.   Confirmation Without Acceptance by
          All Impaired Classes
 
     Section 1129(b) of the Bankruptcy Code allows a Bankruptcy Court to confirm
a plan, even if such plan has not been accepted by all impaired classes entitled
to vote on such plan, provided that such plan has been accepted by at least one
impaired class. If one or more impaired classes reject the Plan, the Debtors may
seek to confirm the Plan pursuant to Section 1129(b) of the Bankruptcy Code. In
such event, the Bankruptcy Court will determine at the Confirmation Hearing
whether the Plan meets the requirements for confirmation pursuant to Section
1129(b) of the Bankruptcy Code.
 
     Section 1129(b) of the Bankruptcy Code states that notwithstanding the
failure of an impaired class to accept a plan of reorganization, the plan shall
be confirmed, on request of the proponent of the plan (in a procedure commonly
known as "cram-down") so long as the plan does not "discriminate unfairly," and
is "fair and equitable" with respect to each class of claims or interests that
is impaired under and has not accepted the plan. According to established legal
precedent, a plan of reorganization does not discriminate unfairly within the
meaning of the Bankruptcy Code if no class receives more than it is legally
entitled to receive for its claims.(67)
 
     With respect to a non-accepting class of impaired secured Claims, "fair and
equitable" means either (i) each holder of a Claim in such class retains its
liens to the extent of its allowed Claim and receives deferred cash payments at
least equal to the allowed amount of its Claim with a present value as of the
Effective Date at least equal to the value of such creditor's interest in the
property securing its liens, (ii) property subject to the lien of such holder is
sold free and clear of that lien, with that lien attaching to the proceeds of
the sales, and such lien proceeds must be treated in accordance with clauses (i)
or (iii) hereof, or (iii) the impaired secured Creditor realizes the
"indubitable equivalent" of its Claim under the Plan.
 
     With respect to a non-accepting class of impaired unsecured Claims, "fair
and equitable" means either (i) each impaired unsecured creditor receives or
retains property of a value equal to the amount of its allowed Claim, or (ii)
the holders of Claims and interests in classes that are junior to the Claims of
the dissenting class will not receive any property under the Plan.(68)
 
     With respect to a non-accepting class of impaired equity interests, "fair
and equitable" means either (i) each holder of an impaired interest in such
class receives or retains property of a value equal to the greatest of the
allowed amount of any fixed liquidation preference to which such holder is
entitled, any fixed redemption price to which such holder is entitled, or the
value of such interest or (ii) the holders of all interests that are junior to
the interests of the dissenting class will not receive any property under the
Amended Plan.
 
- ---------------
 
67 The claimants in the Class Action Proceedings contend that established legal
   precedent with respect to the absence of unfair discrimination also requires
   that classes of the same priority receive equal treatment under a plan of
   reorganization. The Debtors, however, believe that under established legal
   precedent, classes of the same priority may be classified and treated
   differently under a plan of reorganization.
 
68 The claimants in the Class Action Proceedings contend that the Debtors'
   definition of "fair and equitable" fails to encompass a broader meaning of
   such term under the Bankruptcy Code.
 
                                       104
<PAGE>   112
 
     In the event that Allowed Common Stock Interests in Class 6 elect to reject
the Plan, the Debtors believe that they will be able to Confirm the Plan despite
such rejection in accordance with the cramdown provisions contained in Section
1129(b) of the Bankruptcy Code. However, the Equity Committee has indicated that
it believes the Debtors will not be able to confirm the Plan if Allowed Common
Stock Interests elect to reject the Plan. In addition, the claimants in the
Class Action Proceedings have indicated that they believe the treatment of Class
7 is a bar to confirmation of the Plan under Section 1129(a) of the Bankruptcy
Code, that the Debtors will be unable to satisfy the requirements of Section
1129(b) of the Bankruptcy Code, and that such claimants intend to oppose
confirmation of the Plan on such bases. The Debtors believe that they will be
able to confirm the Plan despite any opposition of the Equity Committee and the
claimants in the Class Action Proceedings.
 
     3.   RESOLUTION OF CLAIMS
 
     Virtually all of the approximately 7,804 filed and scheduled Claims
aggregating approximately $2.5 billion (plus unliquidated amounts) have been or
will shortly be addressed by the entry of orders, reconciliation with the
Debtors' books and records, or by stipulations which have been or will be
executed by the interested parties. As of the date hereof, the Debtors estimate
that, on the Effective Date, Allowed Claims against their estates (including
estimates for Disputed Claims) will be as follows:
 
<TABLE>
<CAPTION>
                                                        AGGREGATE ESTIMATED  
   TYPE OF CLAIM                                         ALLOWED AMOUNT(69)  
   -------------                                        -------------------
   <S>                                                  <C>
   Secured Claims(70).................................  $       1,422,000(71)
   Administrative Claims..............................  $         738,000(72)  
   Priority Claims....................................  $       6,147,000(73)  
   Unsecured Claims...................................  $     571,500,000    
                                                        ----------------- 
   TOTAL CLAIMS.......................................  $     579,807,000    
                                                        =================  
</TABLE>                                                                 
 
     With respect to any Claims which remain Disputed, the Plan envisions the
establishment of a reserve which may be established by the Debtors at or prior
to Confirmation. Such fund would be utilized to satisfy Disputed Claims when and
if they are Allowed. Notwithstanding the establishment of such fund, the Debtors
shall, in good faith, attempt to resolve all Disputed Claims prior to
Confirmation of the Plan, and in any event, on an expedited basis. The Debtors
anticipate that all major Disputed Claims will be resolved prior to the
Effective Date. However, as to any Disputed Claims which remain, the Debtors
believe that such claims will be resolved within approximately twelve to
eighteen months following Confirmation (see Section IX(C) for a discussion of
the Reserve to be established for Disputed Claims pending on the Effective
Date).

C.  EQUITY COMMITTEE'S OBJECTION TO THE PLAN

     The Equity Committee has requested that the following statement concerning
its objections to the Plan be included in the Disclosure Statement:

- ---------

69 Includes estimated amounts for Disputed Claims which will ultimately be
   Allowed.  
70 Inclusive of the principal amount of Secured Tax Claims.     
71 Does not include approximately $22.6 million in secured obligations
   which are expected to be assumed either by Reorganized Lone Star or NewCo. 
72 Excludes amounts for Professional Fee holdbacks and management
   severance and retention payments. 
73 Inclusive of Priority Tax Claims.
 

                                       105
<PAGE>   113
 
     The Plan contains provisions which operate such that:
 
    (a) the holders of Class 5 Allowed Preferred Stock Interests will receive a
  reduced distribution if the holders of Class 6 Allowed Common Stock Interests
  reject the Plan, even if holders of Class 5 Allowed Preferred Stock Interests
  accept the Plan;
 
    (b) the holders of Class 5 Allowed Preferred Stock Interests will receive no
  distribution if they vote against the Plan;
 
    (c) the holders of Class 6 Allowed Common Stock Interests will receive no
  distribution if they vote against the Plan;
 
    (d) regardless of whether they accept the Plan, holders of Class 6 Allowed
  Common Stock Interests will receive no distribution if holders of Class 5
  Allowed Preferred Stock Interests vote against the Plan.
 
     The Equity Committee believes that the Plan treats shareholders in an
unfair and discriminatory manner and that the Plan is unconfirmable because it
violates the Bankruptcy Code. The Equity Committee's reasons for opposing the
Plan include the following:
 
     -  The Equity Committee's belief that the Plan is not fair and equitable to
       shareholders. As set forth in Section IV (D)(2) of this Disclosure
       Statement, the Plan is based on the Debtors' valuation of their assets.
       Even based on the Debtors' valuation, the Equity Committee believes that
       unsecured creditors may receive in excess of 100% of the allowed amount
       of their claims. Moreover, the Equity Committee believes the Debtors'
       valuation severely understates the actual value of the Debtors' assets.
       Based on valuations supported by the Equity Committee, the Equity
       Committee believes unsecured creditors' recoveries under the Plan would
       exceed the allowed amount of their claims in violation of the Bankruptcy
       Code. If the Bankruptcy Court finds unsecured creditors would be paid
       more than the full amount of their claims under the Plan,(74) the Plan
       cannot be confirmed without the acceptance of preferred and common
       stockholders.
 
     -  The Equity Committee believes that shareholders would receive more if
       the Debtors were liquidated under Chapter 7 of the Bankruptcy Code than
       shareholders would receive under the Plan. If the Bankruptcy Court finds
       that shareholders would receive more value in a liquidation than under
       the Plan, the Plan cannot be confirmed.
 
     -  In view of the Equity Committee's belief regarding the undervaluation of
       the Debtors' assets, the treatment provisions of the Plan regarding
       shareholders listed in items (a) -- (d) immediately above give
       shareholders the unfair option of either: (i) accepting the Plan, in
       which case the Equity Committee believes shareholders will be
       undercompensated based on the Equity Committee's valuation of the
       Debtors' assets; or (ii) receive no distribution if the provisions listed
       in items (a) -- (d) above are upheld.
 
     The Equity Committee intends to argue to the Bankruptcy Court that the Plan
should not be confirmed and the provisions listed in items (a) -- (d) above
should be invalidated. However, one recent decision by the Bankruptcy Court for
the Southern District of New York, which was affirmed on appeal by the United
States District Court for the Southern District of New York, permitted a debtor
to include somewhat similar provisions in a plan of reorganization and wipe out
a dissenting class of equity security holders. See In re Drexel Burnham Lambert
Group, Inc., 138 B.R. 714, 717 (Bankr. S.D.N.Y.), aff'd, 140 B.R. 347 (S.D.N.Y.
1992) ("Drexel"). Although the Equity Committee believes that the provisions
upheld under the facts of the Drexel case can be distinguished from the
provisions in the Plan, the Drexel case was decided by the same District Court
having appellate jurisdiction over the Debtors' cases and accordingly, such
decision may be followed by the Bankruptcy Court herein. Thus, there can be no
assurance that the provisions in the Plan will be stricken or avoided. Despite
its view that the Plan is flawed and unfair, the Equity Committee urges all
equity security holders to consider carefully the risks attendant to rejection
of the Plan because the Equity
 
- ---------------
 
74 In calculating the full amount of allowed unsecured claims for this purpose,
   the Debtors believe that, in addition to the face amount of such claims,
   post-petition interest on such claims through the date of payment should be
   included.
 
                                       106
<PAGE>   114
 
Committee cannot assure that the Plan will be defeated or that the provisions
will be invalidated. If the provisions listed in items (a) -- (d) above are
upheld, rejection of the Plan by classes of equity holders may mean that equity
security holders will receive no distribution under the Plan.
 
     The following is the Debtors' position with respect to the Equity
Committee's objections to the Plan which are stated immediately above:
 
     Among other things, the Debtors disagree with the Equity Committee
because the Debtors believe that the treatment of Stock Interests under the
Plan is not unfairly discriminatory and is fair and equitable based on their
valuation. Based on the Debtors' valuation, classes senior to such interests
will not receive distributions sufficient to fully satisfy such claims and
interests.(75) Pursuant to Section 1129(b) of the Bankruptcy Code, absent the
consent of such senior classes, no distributions could be made to shareholders
unless the claims of senior classes were fully satisfied.
 
     Under the Plan, holders of Stock Interests will receive, in the event of a
consensual Confirmation, their Pro Rata share of a percentage of New Lone Star
Common Stock and Reorganized Lone Star Warrants. The inclusion of any
distribution for Stock Interests was the result of intensive negotiation with
representatives of creditors and senior interest holders. However, such parties'
consent to a distribution to Stock Interests was conditioned upon a consensual
Confirmation; such parties have indicated that they will oppose the Plan if
shareholders choose to reject the Plan and subject the Debtors' estates to the
delay, costs and expenses associated with a non-consensual Confirmation.
 
     Furthermore, the Debtors believe the Plan is fair and equitable to holders
of Allowed Common Stock Interests because no interest junior to such interest
shall receive any distribution under the Plan and because, under the Debtors'
Liquidation Analysis and based on the Debtors' valuation, holders of such stock
interests will receive more under the Plan than they would in a liquidation
pursuant to Chapter 7 of the Bankruptcy Code. (See Exhibit "E" annexed hereto).
 
     Finally, the Debtors believe that the provisions of the Plan listed in
items (a) -- (d) above, are valid and do not violate the Bankruptcy Code. As the
Equity Committee indicates, similar provisions were upheld in the Drexel case by
the Court having immediate appellate jurisdiction over the Debtors' Chapter 11
cases. The Debtors believe that the reasoning underlying the validation of such
provisions in the Drexel case is equally applicable to the similar provisions
contained in the Debtors' Plan and, therefore, that case is controlling.
 
D.  RISK FACTORS
 
     The securities to be issued pursuant to the Plan are subject to a number of
material risks, including those enumerated below. The risk factors enumerated
below assume Confirmation and the consummation of the Plan and the transactions
contemplated by the Plan and do not include matters that are conditions
precedent to the effectiveness of the Plan (see Section IX(D) for a discussion
of the conditions precedent to the effectiveness of the Plan). Prior to voting
on the Plan each holder of a Claim or interest against the Debtors should
carefully consider the risk factors enumerated or referred to below as well as
all of the information contained in this Disclosure Statement, including the
exhibits hereto.
 
     1.   CEMENT INDUSTRY CONDITIONS
 
     As discussed in Exhibit "F" annexed hereto, Lone Star developed its
financial projections under the assumption that the cement consumption will
increase from the low consumption level experienced in 1991. This assumption is
supported by current projections for the demand of cement prepared by the PCA.
Should
 
- ---------------
 
75  This is especially true since the Debtors believe that in calculating the
    full amount of Allowed Unsecured Claims which must be satisfied under the
    Plan, in addition to the face amount of such claims, post-petition interest
    on such claims through the date of payment should be included. In addition,
    for the purposes of cramdown on common equity and satisfaction of the
    absolute priority rule contained in Section 1129(b) of the Bankruptcy Code,
    the liquidation preference of both series of the Debtors' preferred stock
    which includes accrued and unpaid dividends (both pre-and post-petition)
    must be included in determining the aggregate amount of obligations to
    preferred shareholders which must be satisfied before common shareholders
    could receive any distribution or retain any property.
 
                                       107
<PAGE>   115
 
the economic climate not follow the slow growth/low inflation scenario used by
the PCA it is possible that the assumed recovery of the construction industry
will not reach the levels included in Lone Star's projections.
 
     Imports of cement have fallen dramatically from a peak level of
approximately 18 million tons in 1987 (representing 20% of cement consumption)
to an expected level of 7 million tons (representing 8% of cement consumption)
in 1993. While imports are expected to increase over the next 4 years, the
financial projection does not contemplate that they will return to the levels
experienced in the late 1980's. Should imports increase over the levels assumed,
they could result in lower cement prices.
 
     2.   ENVIRONMENTAL REGULATIONS
 
     Existing and future environmental regulations can be anticipated to have an
impact which may be significant on both the operating and capital costs of Lone
Star's operations, particularly cement manufacturing. Compliance with the 1990
amendments to the Federal Clean Air Act and state regulations thereunder will
require significant capital expenditures at several of the Company's cement
plants during the 1990's. It is possible that future regulation of air
emissions, such as a current proposal to tax carbon dioxide emissions, may
significantly increase operating or capital costs. In addition, it is likely
that, beginning in the mid-1990's, handling and disposal of cement kiln dust, a
waste by-product of cement manufacturing, will be subject to more stringent
regulations under the Federal Resource Conservation and Recovery Act and
analogous state laws and regulations. Such new regulation is expected to
increase operating costs and may require additional capital expenditures to
address both newly generated and formerly disposed of cement kiln dust produced
by Lone Star's cement plants. Finally, those cement plants that burn waste fuels
as an economic substitute for conventional fuels are impacted and will continue
to be impacted by increasingly stringent federal and state regulation of fuel
handling, fuel burning and waste management and disposal practices. Lone Star's
Greencastle, Indiana and Cape Girardeau, Missouri plants currently handle and
burn waste fuels as an integral part of their operations. Onerous regulations
may result in costs outweighing savings, in which event Lone Star may determine
to cease or curtail its waste fuel burning activities (see page 36).
 
     The Company believes that its environmental program is generally equal to
those of its domestic competitors and that its competitive position as to those
competitors will not be adversely affected by compliance with regulations
currently in effect. To the extent that foreign producers of cement do not have
to meet the same environmental standards as domestic producers, the domestic
producers, including Lone Star, are adversely affected by the need to comply
with such regulations.
 
     3.   LIQUIDITY AND LEVERAGE
 
     Based on the projected financial information set forth in Exhibit F --
"Financial Information", and subject to the assumptions and limitations set
forth therein, including consummation of the transactions contemplated by the
Plan in accordance with its terms and the achievement of the Debtors' business
plan for 1993, as of the Effective Date, Lone Star would have projected (i)
total debt (including current portions) of approximately $201.5 million (as
determined for financial reporting purposes), and (ii) total shareholders'
equity (as determined for financial reporting purposes) of approximately $101.6
million. Accordingly, Lone Star will have a high degree of leverage after the
Effective Date. This high degree of leverage will pose substantial risks to
holders of the Senior Notes, New Lone Star Common Stock and Reorganized Lone
Star Warrants and could have material adverse effects on the marketability,
price, and future value of such securities. Among other consequences, the high
degree of leverage may result in the impairment of the Company's ability to
obtain additional financing in the future, to make acquisitions, and to take
advantage of significant business opportunities that may arise. This high degree
of leverage will also increase the vulnerability of Reorganized Lone Star (and
its affiliates) to adverse general economic and industry conditions and to
increased competitive pressures (especially price pressure from less highly
leveraged competitors). In addition, in the event the Reorganized Lone Star
Guarantee was enforced pursuant to its terms, it would increase the leverage of
Reorganized Lone Star at such time.
 
                                       108
<PAGE>   116
 
     4.   LITIGATION RISKS
 
     Other than the outcome of any litigation which may be instituted in
connection with the Confirmation of the Plan (i.e., litigation concerning
valuations, cramdown, etc.), the Debtors do not believe there are any litigation
risks which could significantly or materially impact upon the Plan.
 
     5.   PROJECTIONS
 
     The financial projections included in this Disclosure Statement are
dependent upon the reliability of the assumptions contained therein (see Exhibit
F -- "Financial Information"). These projections reflect numerous assumptions,
including Confirmation and consummation of the Plan in accordance with its
terms, the anticipated future performance of the Reorganized Debtors, industry
performance, general business and economic conditions and other matters, most of
which are beyond the control of Lone Star and some of which may well not
materialize. In addition, unanticipated events and circumstances occurring
subsequent to the preparation of the projections may affect the actual financial
results of the Reorganized Debtors. Therefore, the actual results achieved
throughout the periods covered by the projections may vary from the projected
results. These variations may be material.
 
     6.   CERTAIN TAX MATTERS
 
     The Plan is subject to substantial uncertainties regarding the application
of federal income tax laws, as well as state and local tax laws, to various
transactions and events contemplated therein. The cash position of Lone Star,
and its corresponding ability to meet its obligations on the Senior Notes and
the Reorganized Lone Star Guarantee may depend in substantial part on the
availability to Lone Star and to other members of Lone Star's consolidated tax
group of certain tax benefits in the nature of net operating losses and tax
credit carryforwards. The availability of such tax attributes, however, may be
significantly reduced or restricted as a result of various transactions and
events that have already occurred or that will occur subsequent to the Effective
Date or which are otherwise contemplated pursuant to the Plan. In addition, any
change in the tax laws may impact upon such matters.
 
     7.   DIVIDEND POLICIES
 
     Lone Star does not anticipate paying any dividends on the New Lone Star
Common Stock in the foreseeable future. In addition, the covenants in certain
debt instruments to which Lone Star will be a party will restrict the ability of
Lone Star to pay dividends. Certain institutional investors may only invest in
dividend-paying equity securities or may operate under other restrictions which
may prohibit or limit their ability to invest in New Lone Star Common Stock.
 
     8.   ABILITY TO SERVICE DEBT
 
     In order to generate funds sufficient to make interest and principal
payments and necessary capital expenditures, Lone Star will have to improve
significantly its operating results and cash flows from historical levels.
However, there can be no assurance that improvements sufficient to generate
adequate funds for these purposes will be achieved. If they are not, funds will
have to be derived from alternative sources such as asset sales, additional
financing, or reductions in capital expenditures. Unfavorable conditions in the
financial markets and the cement industry, the high degree of leverage on
Reorganized Lone Star, restrictive covenants contained in its debt instruments,
liens granted on assets, and various other factors may limit the ability of the
Company to successfully undertake any such actions and no assurance can be given
as to the availability of feasible alternative sources of funds. Any utilization
of alternative sources of funds may impair the competitive position of
Reorganized Lone Star, reduce its cash flow or have other adverse consequences,
including imposition of burdensome covenants, security interests, or other
obligations, increasing the risk of defaults under applicable debt instruments
and other unforeseeable consequences that could be adverse to Reorganized Lone
Star and to the holders of the Senior Notes, the Asset Proceeds Notes, the New
Lone Star Common Stock, and the Reorganized Lone Star Warrants.
 
                                       109
<PAGE>   117
 
     9.   LACK OF ESTABLISHED MARKET FOR SENIOR NOTES, ASSET PROCEEDS NOTES, NEW
          LONE STAR COMMON STOCK AND REORGANIZED LONE STAR WARRANTS
 
     The valuations used to calculate recoveries under the Plan are not
estimates of the prices at which the Securities to be distributed under the Plan
may trade in the market. There is currently no existing market for the Senior
Notes, Asset Proceeds Notes, New Lone Star Common Stock and Reorganized Lone
Star Warrants and there can be no assurances that an active market will develop
or as to the degree of price volatility in any such particular market.
Accordingly, no assurance can be given that a holder of the Senior Notes, Asset
Proceeds Notes, New Lone Star Common Stock or Reorganized Lone Star Warrants
will be able to sell such securities in the future or as to the price at which
any such sale may occur. If such markets were to exist, such securities could
trade at prices higher or lower than the face amount thereof, depending upon
many factors, including prevailing interest rates, markets for similar
securities, industry conditions, and the performance of, and investor
expectations for, Reorganized Lone Star.
 
     It is currently contemplated that the New Lone Star Common Stock will be
traded on a national securities exchange. The New Lone Star Common Stock will be
issued pursuant to the Plan to pre-petition creditors, some of whom may prefer
to liquidate their investments rather than to hold it on a long-term basis.
Accordingly, it is anticipated that the market for New Lone Star Common Stock
will be volatile, at least for an initial period after the Effective Date.
Moreover, while the Plan was developed based upon an assumed midpoint
reorganization equity value of $14.68 per share of New Lone Star Common Stock,
such valuation was not an estimate of prices at which the New Lone Star Common
Stock may trade in the market, and the Debtors have not attempted to make any
such estimate in connection with the development of the Plan. No assurance can
be given as to the market prices that will prevail following the Effective Date.
 
     10. RISKS RESPECTING DISPUTED CLAIMS
 
     A number of Disputed Claims are material and the total amount of all
Claims, including Disputed Claims, is materially in excess of the estimated
total amount of Allowed Claims assumed in the development of the Plan. It is a
condition to the effectiveness of the Plan that the aggregate amounts of Allowed
Claims be estimated or finally determined in amounts satisfactory to the
Debtors. The ultimate aggregate amount of Allowed claims in any class may differ
from the Debtors' estimates. Accordingly, the distributions that will ultimately
be received by any particular holder of any Allowed Claim in Class 4 may be
adversely affected by the aggregate amount of Claims ultimately allowed in Class
4.
 
                          VI. ALTERNATIVES TO THE PLAN
 
     The possible alternatives which might arise if this Plan is rejected or if
the Court refuses to confirm the Plan include (i) the conversion of the Debtors'
Chapter 11 cases to liquidation cases under Chapter 7 of the Bankruptcy Code, or
(ii) the filing of competing plans of reorganization.
 
A.  CHAPTER 7 LIQUIDATION
 
     If no plan can be confirmed the Debtors' Chapter 11 cases may be converted
to cases under Chapter 7 of the Bankruptcy Code. A Chapter 7 case requires
liquidation of a debtor's assets by an impartial trustee. The Chapter 7 trustee
is prohibited from continuing to operate a debtor's business. By contrast, a
Chapter 11 case is designed to permit a debtor time to formulate a plan of
reorganization while continuing in the operation of its business thereby
realizing the value of its operations on a going concern basis under the
supervision and protection of the Bankruptcy Court.
 
     In Chapter 7 liquidation cases, unsecured creditors and stockholders of a
debtor are paid from available assets generally in the following order, with no
lower class receiving any payments until all amounts due to senior classes have
been paid fully or payment provided for:
 
     1.   Secured creditors (to the extent of the value of their collateral).
 
     2.   Priority creditors.
 
                                       110
<PAGE>   118
 
     3.   Unsecured creditors.
 
     4.   Debt expressly subordinated by its terms or by order of the Bankruptcy
        Court.
 
     5.   Stockholders.
 
     The Debtors believe that a Chapter 7 liquidation would result in recoveries
substantially less than the recoveries expected to be received pursuant to the
Plan and that these reduced recoveries would be received at a much later time.
Additional administrative expenses would result from the appointment of a
trustee or trustees and corresponding professionals. Furthermore, the Debtors
believe that substantial additional claims would result from cessation of their
operations. These include employee severance claims, claims of Retirees, claims
of the PBGC, contract and lease rejection claims and environmental claims (see
the Liquidation Analysis annexed hereto as Exhibit "E").
 
B.  THE FILING OF COMPETING PLANS OF REORGANIZATION
 
     In the event the Plan is not confirmed on the Confirmation Date, the
Debtors or other interested parties, could formulate and propose alternative
plans of reorganization. Such plans might involve either a reorganization or
liquidation of the Debtors' businesses, or a combination of the two. Taking into
account the current cash position of the Debtors, the complexity of their
estates, the expense and delay involved in formulating, proposing and
negotiating alternative plans at this juncture, and the difficulty of managing
the administration of these estates if competing plans were submitted, the
Debtors believe that a substantial portion of the value of these estates would
be drained resulting in substantially less returns to holders of Allowed Claims
and Stock Interests than under the present Plan.
 
     With respect to the filing of alternative plans, in July, 1993, the Debtors
sought a further extension of their exclusive period to solicit acceptances to
the Plan which was scheduled to terminate in early August, 1993. The Equity
Committee objected, although the Creditors' and Retiree Committees and other
parties-in-interest supported the requested extension. The Equity Committee also
sought to postpone the hearing (then scheduled for September 8, 1993) to
consider approval of this Disclosure Statement. At a hearing held on July 29,
1993, the Debtors elected to consent to a termination of their exclusive
solicitation period so long as the hearing on their Disclosure Statement was not
postponed. Accordingly, as a result of the Debtors' consent to the termination
of exclusivity, the Equity Committee's application to postpone the hearing on
the Disclosure Statement was denied. Thus, on August 7, 1993, the Debtors'
exclusivity period terminated and, as a result, other parties can file a plan of
reorganization. However, upon approval of this Disclosure Statement, pursuant to
Bankruptcy Rule 3016(a), a party-in-interest, other than the Debtors, may not
file a plan unless confirmation of the Plan has been denied or the Bankruptcy
Court otherwise directs.
 
            VII. CERTAIN FEDERAL INCOME TAX CONSEQUENCES OF THE PLAN
 
A.  INTRODUCTION
 
     The following discussion addresses certain material federal income tax
consequences of the Plan to the holders of Allowed Unsecured Claims, holders of
Allowed Preferred Stock Interests and holders of Allowed Common Stock Interests
(collectively, the "Holders") and to the Debtors. This discussion does not
purport to set forth all aspects of federal income taxation that may be relevant
to particular Holders in light of individual circumstances or to certain types
of Holders (e.g., life insurance companies, tax-exempt organizations and foreign
persons) subject to special treatment under the Revenue Code, and does not
discuss any aspects of state, local or foreign tax laws.
 
     The analysis and conclusions set forth in this discussion are based upon
the interpretation of applicable provisions of the Revenue Code, final and
proposed Treasury regulations promulgated thereunder, and rulings and judicial
decisions in effect as of the date hereof, all of which are subject to change
(possibly with retroactive effect). It should be noted, that certain tax
consequences of the Plan are unclear under existing law. Proposed regulations
are, in some instances, subject to varying interpretations and do not address
all of
 
                                       111
<PAGE>   119
 
the issues relevant to the Debtors or Holders. In addition, final Treasury
regulations relating to a specific issue may differ from the proposed
regulations and may retroactively affect tax consequences of the Plan.
 
     This discussion of federal income tax consequences is not binding on the
Internal Revenue Service (the "Service"). Therefore, there can be no assurance
that the Service will not take a different position regarding the consequences
of the Plan or that any such position would not be sustained. The Debtors have
not obtained and do not intend to seek any advance rulings from the Service with
respect to any federal income tax matter and have not requested or obtained any
opinion of counsel with respect to any federal tax matter.
 
B.  FEDERAL INCOME TAX CONSEQUENCES TO HOLDERS
 
     1.   OVERVIEW
 
     The Plan contemplates that each Holder of an Allowed Unsecured Claim will
receive its share, as set forth in the Plan, of the following consideration on
the Effective Date: (i) Cash; (ii) Senior Notes bearing interest at 10% per
annum payable semi-annually and maturing on July 31, 2003; (iii) Asset Proceeds
Notes bearing interest at 10% per annum payable semi-annually and maturing on
July 31, 1997, and, except with respect to Holders of Allowed 4A Unsecured
Claims, and (iv) 85 percent of the New Lone Star Common Stock (subject to
dilution for stock options and the Reorganized Lone Star Warrants, or increased
in the event of a non-consensual Confirmation) plus, in the event of a
non-consensual confirmation, a certain amount of Reorganized Lone Star Warrants.
In the event of a consensual Confirmation, holders of Allowed Preferred Stock
Interests will receive 10.5 percent of the New Lone Star Common Stock plus
1,250,000 Reorganized Lone Star Warrants and Holders of Allowed Common Stock
Interests will receive 4.5 percent of the New Lone Star Common Stock and
2,083,333 Reorganized Lone Star Warrants (all subject to dilution for certain
stock options). The following discussion of the tax consequences to the Holders
of Allowed Unsecured Claims, Allowed Preferred Stock Interests and Allowed
Common Stock Interests is based on the assumption that the Confirmation of the
Plan is consensual.
 
     2.   GAIN OR LOSS TO HOLDERS OF ALLOWED UNSECURED CLAIMS
 
     a.   Realization of Gain or Loss on the Effective Date
 
     On the Effective Date, gain or loss will be realized by each Holder of an
Allowed Unsecured Claim to the extent of the difference between (i) the sum of
the amount of Cash, the "issue price" of the Senior Notes (although a cash
method taxpayer possibly could use the fair market value of the notes, if
different from issue price), the fair market value of the New Lone Star Common
Stock, the fair market value of the Reorganized Lone Star Warrants in the event
of a non-consensual Confirmation, and the fair market value of the Asset
Proceeds Notes received by such Holder (other than the portion of such
consideration allocated to unpaid interest that has economically accrued during
the Holder's holding period with respect to its Allowed Unsecured Claim) and
(ii) the adjusted tax basis of such Holder's Allowed Unsecured Claim (other than
the portion of such claim representing such accrued but unpaid interest).
Because a Holder will receive the Asset Proceeds Notes from Lone Star rather
than from NewCo, the fair market value of such obligations rather than their
issue price will govern the amount of gain or loss realized by a Holder from the
exchange of its Allowed Unsecured Claim.
 
     The issue price of the Senior Notes will be determined under the following
rules incorporated in recently released proposed Treasury regulations. If the
Senior Notes are traded on an established securities market at any time during
the 60-day period ending 30 days after the date such notes are issued, their
issue price will be equal to their fair market value (probably the mean between
the highest and lowest quoted selling prices) as of the issue date. The Debtors'
financial advisors have advised the Debtors that they believe the Senior Notes
will trade at a price equal to their face amount. If the Senior Notes are not
publicly traded within this 60-day period, their issue price will be equal to
their face amount provided the Senior Notes bear interest equal to or greater
than the "applicable federal rate" (the "AFR"). The Debtors do not anticipate
that the Senior Notes will bear interest at a rate less than the AFR.
 
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<PAGE>   120
 
     b.   Recognition of Gain or Loss on the Effective Date
 
     The extent to which gain or loss realized on the Effective Date is
recognized for federal income tax purposes will depend on whether a Holder's
Allowed Unsecured Claim and the Senior Notes each constitute a "security" of
Lone Star for federal income tax purposes. Whether a debt instrument constitutes
a security is based on the facts and circumstances surrounding the origin and
nature of the debt and its maturity date. Generally, claims arising out of the
extension of trade credit have been held not to be securities. Instruments with
a five-year term or less also rarely qualify as securities. On the other hand,
bonds or debentures with an original term of at least ten years have generally
been considered to be securities. Holders of Allowed Unsecured Claims are
advised to consult with their advisors to determine whether their claims are
securities. While the issue is not free from doubt, the Debtors believe that the
Senior Notes are securities, and the following discussion is based upon that
treatment.
 
     (1) Allowed Unsecured Claims Not Constituting Securities of Lone Star
 
     A Holder of an Allowed Unsecured Claim that is not a security of Lone Star
for tax purposes will recognize gain or loss equal to its realized gain or loss
as described above.
 
     Such Holder that, under its accounting method, was not required to include
in income unpaid interest that has accrued during the Holder's holding period
with respect to its Allowed Unsecured Claim will be treated as receiving
ordinary interest income to the extent consideration received is allocable to
such interest. This treatment applies regardless of whether the Holder realizes
an overall gain or loss as a result of the exchange of its Allowed Unsecured
Claim. A Holder that had previously included in income accrued but unpaid
interest attributable to its claim will recognize a loss (generally deductible
against ordinary income) to the extent such interest is not satisfied in full.
The Plan provides that payments to a holder of an Allowed Claim with respect to
which there was accrued but unpaid interest as of the Filing Date shall be
allowed first to the principal amount of the Allowed Claim and then to such
accrued but unpaid interest to the extent that the amount of the payments under
the Plan to such a Holder exceeds the principal amount of such claim. However,
it is not entirely clear how a Holder receiving consideration that is less than
the amount of its Allowed Unsecured Claim should allocate such consideration
between principal and interest. The IRS may require that the consideration be
allocated proportionately between the portion of the Allowed Unsecured Claim
representing principal and the portion of such claim representing interest.
 
     (2) Allowed Unsecured Claims Constituting Securities of Lone Star
 
     A Holder of an Allowed Unsecured Claim qualifying as a security of Lone
Star for federal income tax purposes will not recognize any loss from the
exchange of its Allowed Unsecured Claim, but realized gain will be recognized to
the extent of the amount of Cash, the fair market value of the Asset Proceeds
Notes, and the fair market value of the Reorganized Lone Star Warrants in the
event of a non-consensual Confirmation, received by such Holder (other than the
portion of such property allocated to unpaid interest that has accrued during
the Holder's holding period with respect to its Allowed Unsecured Claim). Thus,
such a Holder should recognize gain (but not loss) on the exchange equal to the
lesser of (i) the sum of the Cash and fair market value of the Asset Proceeds
Notes received by a Holder (other than the portion of such property allocated to
such accrued but unpaid interest) or (ii) the excess, if any, of the sum of
amount of Cash, the fair market value of the New Lone Star Common Stock, the
issue price of the Senior Notes, the fair market value of the Asset Proceeds
Notes, and the fair market value of the Reorganized Lone Star Warrants in the
event of a non-consensual Confirmation, received by a Holder of an Allowed
Unsecured Claim (other than the portion of such consideration allocated to such
accrued but unpaid interest) over the adjusted tax basis of its Allowed
Unsecured Claim (other than the portion of such claim representing such accrued
but unpaid interest).
 
     While the exchange of an Allowed Unsecured Claim qualifying as a security
for New Lone Star Common Stock and Senior Notes will be treated as a tax-free
recapitalization, the nonrecognition rules generally applicable to tax-free
reorganizations will not apply to the extent such consideration received by a
Holder is attributable to unpaid interest that has accrued during such Holder's
holding period with respect to its Allowed Unsecured Claim. The tax treatment of
such a Holder with respect to the portion of the New Lone
 
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<PAGE>   121
 
Star Common Stock and Senior Notes allocated to such accrued but unpaid interest
is as described above with respect to Holders of Allowed Unsecured Claims not
qualifying as securities.
 
     c.   Character of Gain or Loss
 
     The character of any gain or loss as capital or ordinary gain or loss and,
in the case of capital gain or loss, as short-term or long-term, will depend on
a number of factors, including: (i) the nature and origin of the Allowed
Unsecured Claim; (ii) the tax status of the Holder of the Allowed Unsecured
Claim; (iii) whether the Allowed Unsecured Claim is a capital asset in the hands
of the Holder; (iv) whether the Allowed Unsecured Claim has been held for more
than one year; (v) the extent to which the Holder previously claimed a loss, bad
debt deduction or charge to a reserve for bad debts with respect to the Allowed
Unsecured Claim; and (vi) the application of the "market discount" rules.
 
     d.   Basis and Holding Period of Property Received
 
     In the case of a Holder of an Allowed Unsecured Claim qualifying as a
security of Reorganized Lone Star, a Holder's aggregate adjusted tax basis in
its New Lone Star Common Stock and Senior Notes (other than the portion of such
consideration allocated to unpaid interest that has accrued during the Holder's
holding period with respect to its claim) will be equal to the Holder's adjusted
tax basis in its Allowed Unsecured Claim (other than the portion of such claim
in respect of such accrued but unpaid interest), decreased by the sum of the
amount of Cash, fair market value of Asset Proceeds Notes and the fair market
value of the Reorganized Lone Star Warrants in the event of a non-consensual
Confirmation (other than the portion of such property allocated to such accrued
but unpaid interest), received and increased by any gain recognized on the
exchange. This aggregate basis will, in turn, be allocated between the New Lone
Star Common Stock and the Senior Notes in proportion to the relative fair market
value of the stock and issue price (or possibly fair market value) of the debt
immediately after the exchange. The holding period for the New Lone Star Common
Stock and Senior Notes (other than the portion of such consideration allocated
to such accrued but unpaid interest) will include the period during which a
Holder held the Allowed Unsecured Claim exchanged therefor, provided such claim
was held as a capital asset on the date of the exchange. If a Holder of an
Allowed Unsecured Claim does not hold such claim as a capital asset, the holding
period for the New Lone Star Common Stock and Senior Notes will begin on the day
immediately after the exchange.
 
     A Holder's initial tax basis in the Asset Proceeds Notes and the
Reorganized Lone Star Warrants in the event of a non-consensual Confirmation
will be equal to the fair market value of such notes and warrants on the
Effective Date. The Holder's holding period for such Asset Proceeds Notes and
Reorganized Lone Star Warrants should begin on the day after the date of the
exchange.
 
     A Holder's initial tax basis in New Lone Star Common Stock and Senior Notes
allocated to unpaid interest that accrued after the commencement of the Holder's
holding period with respect to its Allowed Unsecured Claim should be the amount
allocated to such accrued interest. The Holder's holding period for such New
Lone Star Common Stock and Senior Notes should begin on the day after the date
of the exchange.
 
     The basis in New Lone Star Common Stock received by a Holder of an Allowed
Unsecured Claim not constituting a security of Lone Star will be equal to the
fair market value of such stock on the Effective Date. The tax basis of the
Senior Notes received by such a Holder will be equal to its issue price (or
possibly fair market value, if less, in the case of a cash method taxpayer).
 
     e.   Market Discount on Resale
 
     A Holder of an Allowed Unsecured Claim may be subject to the market
discount provisions of the Revenue Code. The Revenue Code generally requires a
holder of a "market discount bond", as defined below, to treat as interest
income any gain recognized on the disposition of such bond to the extent of the
market discount accrued during the holder's period of ownership (unless such
holder had elected to include market discount in income on a current basis). In
the case of an Allowed Unsecured Claim that constitutes a security of Lone Star
and is a market discount bond, a Holder will be required to treat accrued market
discount as ordinary income only to the extent that it recognizes gain under the
rules discussed above. Any accrued
 
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<PAGE>   122
 
market discount not treated as ordinary income because of the non-recognition
treatment afforded to the receipt of New Lone Star Common Stock and Senior Notes
will carry over to such non-recognition property. On disposition of any such New
Lone Star Common Stock or Senior Notes, any gain recognized generally will be
treated as ordinary income to the extent of the amount of accrued market
discount carried over thereto.
 
     The accrued market discount generally equals a ratable portion of the
amount of the obligation's market discount, based on the number of days the
holder has held the obligation at the time of such disposition, as a percentage
of the number of days from the date the holder acquired the obligation to its
maturity. A "market discount bond" is a debt obligation purchased at market
discount (subject to a statutory de minimis exception).
 
     An Asset Proceeds Note will be treated as a market discount bond in the
hands of a Holder if the fair market value of such obligation on the Effective
Date is less than its issue price. The Debtors anticipate that the Asset
Proceeds Notes will not be publicly traded within the 60-day period referred to
above. As a result, the issue price of such obligations will be equal to their
face amount, whether interest is paid in cash or notes, assuming their interest
rate will not be less than the AFR.
 
     f.   Effect of Original Issue Discount
 
     The Debtors do not anticipate that the Senior Notes will be issued with
original issue discount ("OID"), which is the excess of a debt instrument's
"stated redemption price at maturity" over its issue price. However, because
interest on the Asset Proceeds Notes will be paid in the form of additional
notes if there is not adequate cash flow to pay interest, a Holder receiving
notes will be required to include amounts in income in advance of cash payments.
In the unlikely event Senior Notes are issued with OID, a Holder will also be
taxed on amounts without a corresponding cash payment, except that the OID
includable in income by a Holder may be reduced or eliminated to the extent a
Holder's tax basis in the Senior Note exceeds the issue price.
 
     3.   GAIN OR LOSS TO HOLDERS OF ALLOWED PREFERRED STOCK AND ALLOWED COMMON
STOCK INTERESTS
 
     A Holder of an Allowed Preferred Stock Interest or Allowed Common Stock
Interest will not recognize gain or loss on the exchange of its stock for New
Lone Star Common Stock because such exchange will qualify as a tax-free
recapitalization, except that a Holder will recognize gain, if any, to the
extent of the fair market value of any Reorganized Lone Star Warrants received.
A Holder's tax basis in the New Lone Star Common Stock received will equal its
basis in the stock exchanged, decreased by the fair market value of any
Reorganized Lone Star Warrants received and increased by any gain recognized on
the exchange. Its holding period for the New Lone Star Common Stock will include
the holding period for such stock exchanged. A Holder's tax basis in Reorganized
Lone Star Warrants will be equal to the fair market value on the Effective Date,
and the holding period for the Reorganized Lone Star Warrants should begin on
the day after the date of the exchange.
 
C.  FEDERAL INCOME TAX CONSEQUENCES TO DEBTORS
 
     1.   OVERVIEW
 
     The Debtors are members of an affiliated group of corporations filing a
consolidated federal income tax return (the "Debtor Group"). The Debtor Group's
NOL carryovers for regular federal income tax and alternative minimum tax
("AMT") purposes, as of January 1, 1993, are estimated to be $126 million and
$37 million, respectively. It is noted that the Service has not audited the
Debtor Group's tax returns for taxable years ending subsequent to December 31,
1982. If these returns were audited and the Service were to review the Debtor
Group's NOL carryovers, there can be no assurance that such NOLs would not be
reduced and that the courts would not sustain such reduction.
 
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<PAGE>   123
 
     2.   DEBT RESTRUCTURING
 
     a.   Discharge of Indebtedness
 
     Under the Plan, it is expected that Allowed Unsecured Claims will be
satisfied at a discount. Generally, the retirement of debt at a discount will
result in income from the cancellation of debt ("COD Income") to the debtor
equal to the excess of (i) the principal amount (as determined for federal
income tax purposes) of the debt retired, plus any previously accrued but unpaid
interest (unless such interest was not deducted by the debtor), over (ii) the
amount of cash, issue price of new debt and/or the fair market value of other
property given in satisfaction of such retired debt.
 
     However, under Section 108 of the Revenue Code, if the discharge of the
debtor's indebtedness is pursuant to a plan approved by a bankruptcy court in a
Title 11 case, the debtor's COD Income is not required to be included in gross
income. Instead, the amount of COD Income that would otherwise be required to be
included in income is applied to reduce certain tax attributes of the debtor in
the following order: NOL carryovers, certain credit carryovers, capital loss
carryovers, the basis of the debtor's property (but not below its liabilities
after the discharge) and foreign tax credit carryovers. A judicially-developed
rule known as the "stock-for-debt" exception, now reflected in Section
108(e)(10) of the Revenue Code, generally provides, however, that the exchange
of stock for debt by a corporation in a Chapter 11 proceeding where COD Income
is otherwise realized will not result in tax attribute reduction or income
recognition.
 
     In order for the stock-for-debt exception to apply, stock (excluding any
disqualified stock under Section 108 of the Revenue Code) issued in exchange for
the debt must meet the following two "de minimis" tests: (i) the
"nominal-or-token" test and (ii) the "proportionality" test. For the reasons
discussed below, the stock-for-debt exception should apply to the exchange of
New Lone Star Common Stock for Allowed Unsecured Claims in Lone Star under these
tests.
 
     The Service has recently issued proposed regulations which, unlike the
proposed regulations issued in 1990, provide that the relevant facts and
circumstances must be considered in determining whether stock issued for debt is
nominal or token and do not base this determination on a specified list of
factors. In addition, this determination is made on an aggregate basis with
respect to all common stock issued for unsecured indebtedness in the Title 11
case. In light of the fair market value and percentage of New Lone Star Common
Stock to be issued to Holders of Allowed Unsecured Claims pursuant to the Plan,
the amount of such stock should not be considered nominal or token under these
proposed regulations. A second "de-minimis" requirement that must be met for the
stock-for-debt exception to apply to an unsecured creditor's indebtedness is
that the ratio of the value of the stock received by such creditor to the amount
of debt cancelled or exchanged in consideration thereof cannot be less than 50
percent of a similar ratio computed for all unsecured creditors participating in
the workout (whether or not they receive stock). The New Lone Star Common Stock
issued under the Plan to each Holder of an Allowed Unsecured Claim should
satisfy this requirement.
 
     It is unclear whether the stock-for-debt exception will apply to the
exchange of New Lone Star Common Stock for an Allowed Unsecured Claim that is an
obligation of a Debtor other than Lone Star. If this exception does not apply,
COD Income will be realized (but not recognized because the Debtors are in
Chapter 11) in an amount equal to the excess of (i) the amount of such Allowed
Unsecured Claims over (ii) the sum of the Cash, issue price of the Senior Notes,
the fair market value of the Asset Proceeds Notes, and the fair market value of
the New Lone Star Common Stock distributed with respect to such Allowed
Unsecured Claims. It is also unclear whether the reduction of NOLs and other tax
attributes applies on a separate company or affiliated group basis.
 
     The Omnibus Budget Reconciliation Act of 1993, enacted on August 10, 1993,
repealed the stock-for-debt exception, effective with respect to stock
transferred after December 31, 1994, in satisfaction of any indebtedness, unless
the transfer is in a bankruptcy case filed on or before December 31, 1993. This
legislation will not apply to Reorganized Lone Star because its bankruptcy case
was filed on December 10, 1990, prior to the effective date of this legislation.
 
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<PAGE>   124
 
     b.   Future Utilization of NOL Carryovers
 
     Under Section 382 of the Revenue Code, a corporation's utilization of NOL
carryovers may be restricted if the corporation undergoes (or previously has
undergone) an "ownership change." A corporation will be considered as undergoing
an ownership change if at any time during a rolling three-year period (the
"testing period") the percentage of stock owned by one or more five-percent
shareholders or deemed five-percent shareholders (as defined under technical
rules under Section 382) increases by more than 50 percentage points over the
lowest percentage of stock owned by each of such shareholders during the testing
period. As a result of the exchange of New Lone Star Common Stock for Allowed
Unsecured Claims, the Debtor Group will undergo an ownership change on the
Effective Date with the result that its NOL carryovers will be subject to
limitation under Section 382 of the Revenue Code as discussed below.
 
     Unless a debtor elects for it not to apply, Section 382(l)(5) of the
Revenue Code provides that in the case of a debtor under the jurisdiction of a
bankruptcy court in a Title 11 case, the annual formula limitations imposed by
Section 382 of the Revenue Code (as discussed below) will not apply to any
ownership change resulting from such a proceeding if qualifying creditors and
shareholders (determined immediately before such ownership change) own, after
such ownership change as a result of being shareholders or creditors immediately
before such change, 50 percent or more of the stock of the loss corporation.
"Qualifying creditors" are persons that were creditors as of a date eighteen
months before filing of the petition under Title 11 or persons whose claims
arose in the ordinary course of the trade or business of the loss corporation
(and were at all times beneficially owned by such persons). It should be noted,
however, that if the loss corporation undergoes a subsequent ownership change
within the two-year period following an ownership change with respect to which
it avails itself of Section 382(l)(5) of the Revenue Code, its NOL carryovers
are eliminated.
 
     A cost of applying Section 382(l)(5) of the Revenue Code is that NOL
carryovers must be reduced by the sum of: (1) any deduction for interest claimed
by the loss corporation, with respect to any indebtedness converted into stock,
for any taxable year ending during the three-year period preceding the taxable
year of the ownership change and the portion of the year of the ownership change
prior to the date of the ownership change, and (2) 50 percent of the excess of
the discharged debt (other than the interest taken into account above) over the
value of the stock and other property transferred to creditors in a transfer
qualifying for the stock-for-debt exception described above.
 
     The Debtor Group expects that it will elect not to apply the Section
382(l)(5) exception. (If it sought to apply Section 382(l)(5), it would have to
determine whether the requirements to the application of Section 382(l)(5) were
met.) Assuming the Debtor Group elects not to apply Section 382(l)(5), the NOL
carryovers available each year to offset income would, in general, then be
limited to the product of (i) the fair market value of the Debtor Group
immediately after the ownership change (reflecting the increase in value as a
result of the exchange of the Allowed Unsecured Claims) and (ii) the federal
long-term tax-exempt interest rate in effect on the date of the ownership change
(currently approximately 5.49 percent), plus the portion of any such limitation
amount not utilized in prior years. Even this limitation would not be available
if the Debtor Group failed to conduct its historic business at all times during
the two-year period following the date of the ownership change.
 
     In addition, NOL carryovers otherwise available may be used without
restriction during a five-year period (the "recognition period") subsequent to
the ownership change to offset "built-in gains" (generally the excess of the
fair market value of the assets of the Debtor Group over their adjusted tax
basis) existing at the time of the ownership change and realized during the
recognition period, up to the amount of the net built-in gain on the date of the
ownership change, provided that on the date of the ownership change the amount
of built-in gain with respect to the assets of the Debtor Group (excluding cash,
cash equivalents and certain other assets) exceeds the lesser of $10 million or
15 percent of the fair market value of such assets. The Debtor Group believes
that its assets contain an amount of built-in gain sufficient to satisfy this
threshold and, as a result, it will be able to apply its NOL carryovers against
all or a portion of gains arising from the sale of certain assets during that
five-year period.
 
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<PAGE>   125
 
     Special rules apply to the allocation of taxable income to "pre-change" and
"post-change" periods of the tax year in which an ownership change occurs.
Generally, taxable income for the year is allocated to each period on a pro rata
basis. Built-in gains (or losses) recognized on or after the ownership change
date (in an amount not exceeding the "net unrealized built-in gain" (or "loss"))
are not prorated, but are allocated to the post-change period. In the case of
built-in gains subject to the above rule, the Debtor Group's Section 382
limitation will be increased by a like amount.
 
     c.   Alternative Minimum Tax
 
     A corporation is liable for AMT of 20 percent of alternative minimum
taxable income ("AMTI") if such tax exceeds its regular tax liability. In
addition, a corporation must separately compute and carry forward AMT NOL
deductions. AMTI is generally calculated by making a series of adjustments to
regular taxable income. An AMT NOL carryover cannot offset more than 90 percent
of AMTI for any taxable year.
 
     THE FOREGOING SUMMARY IS INCLUDED HEREIN FOR GENERAL INFORMATION PURPOSES
ONLY. ACCORDINGLY, EACH HOLDER SHOULD CONSULT WITH SUCH HOLDER'S TAX ADVISOR AS
TO THE SPECIFIC TAX CONSEQUENCES TO SUCH HOLDER OF THE PLAN AND THE OWNERSHIP
AND DISPOSITION OF NEW LONE STAR COMMON STOCK, SENIOR NOTES AND ASSET PROCEEDS
NOTES, INCLUDING THE APPLICATION AND EFFECT OF STATE, LOCAL AND FOREIGN INCOME
AND OTHER TAX LAWS.
 
            VIII. APPLICABILITY OF FEDERAL AND OTHER SECURITIES LAWS
 
     The Plan contemplates the issuance of certain securities to holders of
Allowed Claims and Allowed Stock Interests. Section 1145 of the Bankruptcy Code
creates certain exemptions from the registration and licensing requirements of
federal and state securities laws with respect to the issuance and distribution
of securities by a debtor under a plan of reorganization to holders of claims or
interests wholly or principally in exchange for those claims or interests.
 
A.  ISSUANCE OF SECURITIES UNDER THE PLAN
 
     Section 1145 of the Bankruptcy Code exempts the issuance of securities
under a plan of reorganization from registration under the Securities Act of
1933, as amended (the "Securities Act"), and under state securities laws if
three principal requirements are satisfied: (i) the securities must be issued
"under a plan" of reorganization by the debtor or its successor under a plan or
an affiliate participating in a joint plan of reorganization with the debtor;
(ii) the recipients of the securities must hold a claim against the debtor, an
interest in the debtor or a claim for an administrative expense against the
debtor; and (iii) the securities must be issued entirely in exchange for the
recipients' claim against or interest in the debtor, or principally in such
exchange and partly for cash or property. The Debtors believe that the
contemplated issuance of New Lone Star Common Stock, Senior Notes, Asset
Proceeds Notes and Reorganized Lone Star Warrants under the Plan satisfies all
these conditions and, therefore, is exempt from registration under federal and
state securities laws, although, as discussed in subsection B below, under
certain circumstances, subsequent transfers of such securities may be subject to
registration requirements under such securities laws.
 
B.  SUBSEQUENT TRANSFERS OF SECURITIES ISSUED UNDER THE PLAN
 
     Although the Debtors believe the subsequent sale or transfer of the New
Lone Star Common Stock, Senior Notes, Asset Proceeds Notes and Reorganized Lone
Star Warrants by recipients thereof would be exempt from registration under the
Securities Act and not subject to related holding period requirements in most
circumstances, certain recipients of the securities -- those recipients who are
deemed "underwriters" as defined under Section 1145(b) of the Bankruptcy Code --
will be unable to resell such securities, except with respect to ordinary
trading transactions of an entity that is not an issuer, absent registration of
securities under the Securities Act and applicable state law or absent an
exemption therefrom.
 
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<PAGE>   126
 
     Section 1145(b) of the Bankruptcy Code defines four types of
"underwriters": (1) a person who purchases a claim against, an interest in or a
claim for administrative expense against the debtor, with a view to distributing
any security received in exchange for such a claim or interest; (2) a person who
offers to sell securities offered under a plan for the holders of such
securities; (3) a person who offers to buy such securities for the holders of
such securities, if the offer is (a) with a view to distributing them or (b)
made under a distribution agreement; and (4) a person who is an "issuer" with
respect to the securities, as the term "issuer" is defined in Section 2(11) of
the Securities Act. Under Section 2(11) of the Securities Act, an "issuer"
includes any person directly or indirectly controlling or controlled by the
debtor, or any person under direct or indirect common control with the debtor.
 
     Whether or not any particular person would be deemed to be an "underwriter"
with respect to any security to be issued pursuant to the Plan would depend upon
various facts and circumstances applicable to that person. Accordingly, the
Debtors express no view as to whether any person would be an "underwriter" with
respect to any security to be issued pursuant to the Plan.
 
     GIVEN THE COMPLEX, SUBJECTIVE NATURE OF THE QUESTION OF WHETHER A
PARTICULAR PERSON MAY BE AN UNDERWRITER, THE DEBTORS MAKE NO REPRESENTATIONS
CONCERNING THE RIGHT OF ANY PERSON TO TRADE IN THE SECURITIES TO BE DISTRIBUTED
PURSUANT TO THE PLAN. THE DEBTORS RECOMMEND THAT POTENTIAL RECIPIENTS OF
SECURITIES UNDER THE PLAN CONSULT THEIR OWN COUNSEL CONCERNING WHETHER THEY MAY
FREELY TRADE SUCH SECURITIES.
 
                         IX. POST CONFIRMATION MATTERS
 
A.  OFFICERS AND DIRECTORS
 
     There is presently no plan to change the current operational management of
the Debtors following Confirmation. A determination has not yet been made with
respect to post-Confirmation directors but, in accordance with Section
1129(a)(5) of the Bankruptcy Code, such information shall be disclosed on or
prior to the Confirmation Date.
 
B.  RETENTION OF JURISDICTION
 
     From and after the Confirmation Date and until such time as all payments
and distributions required to be made and all other obligations required to be
performed under the Plan have been made and performed by the Debtors or
Reorganized Debtors, the Bankruptcy Court shall retain such jurisdiction as is
legally permissible, including, but not limited to, the following purposes:
 
          (i) to hear and determine any and all objections to the allowance of a
     Claim or Stock Interest or any controversy as to the classification of
     Claims or Stock Interests or the Reserve, provided that only the Debtors
     and the Creditors' Committee may file objections to Claims;
 
          (ii) to hear and determine any and all applications by Professionals
     for compensation and reimbursement of expenses;
 
          (iii) to hear and determine any and all pending applications for the
     rejection and disaffirmance of executory contracts and unexpired leases and
     fix and allow any Claims resulting therefrom;
 
          (iv) to enable the Debtors, NewCo or any party acting on behalf of
     NewCo to prosecute any and all proceedings which may be brought prior to
     the Effective Date to set aside liens or encumbrances and to recover any
     transfers, assets, properties or damages to which the Debtors (or NewCo)
     may be entitled under applicable provisions of the Bankruptcy Code or any
     other federal, state or local laws except as may be waived pursuant to the
     Plan;
 
          (v) to liquidate any disputed, contingent or unliquidated Claims or
     interests;
 
          (vi) to enforce the provisions of the Plan and the injunction and
     releases provided for in the Plan;
 
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<PAGE>   127
 
          (vii) to correct any defect, cure any omission, or reconcile any
     inconsistency in the Plan or in the Confirmation Order as may be necessary
     to carry out its purpose and the intent of the Plan;
 
          (viii) to hear and determine any and all pending actions pursuant to
     Sections 544, 547, 548 and 550 of the Bankruptcy Code to set aside and
     recover (if applicable) any transfers determined to be preferential or
     fraudulent;
 
          (ix) to determine any Tax Claim which the Estates may incur as a
     result of the transactions contemplated by the Plan; and
 
          (x) to determine such other matters as may be provided for in the
     Confirmation Order confirming the Plan or as may be authorized under the
     provisions of the Bankruptcy Code.
 
C.  ADMINISTRATION OF DISPUTED CLAIMS RESERVE -- ESCROW AGENT
 
     With respect to Disputed Claims pending on the Effective Date, a Reserve
will be established. Specifically, pursuant to Section 6.8 of the Plan, Cash, or
with respect to Disputed Claims in Class 4 Cash and Securities, respecting
Disputed Claims pending on the Effective Date shall not be distributed, but, if
necessary, shall be deposited by the Debtors with the Escrow Agent on the
Effective Date in the full amount of all Disputed Claims; provided, however,
that if a holder of a Contingent or unliquidated claim is not receiving a
distribution under the Plan and such Contingent or unliquidated claim is not
being discharged by the Plan or is assumed by a Reorganized Debtor, the Debtors
shall not be required to reserve any Cash or Securities with respect thereto.
 
     For purposes of effectuating the Reserve provisions of the Plan and the
distributions to holders of Allowed Claims, the Bankruptcy Court, on or prior to
the Effective Date or such date or dates thereafter as the Bankruptcy Court
shall set, may fix or liquidate the amount of Disputed Claims pursuant to
Section 502(c) of the Bankruptcy Code, in which event the amounts so fixed or
liquidated shall be deemed the amounts of the Disputed Claims pursuant to
Section 502(c) of the Bankruptcy Code for purposes of distribution under the
Plan. In lieu of fixing or liquidating the amount of any Disputed Claim, the
Bankruptcy Court may determine the amount to be reserved for such Disputed
Claim, or such amount may be fixed by agreement in writing by and between the
Debtors and the holder thereof.
 
     When a Disputed Claim becomes an Allowed Claim, there shall be distributed
to such Allowed Claim, in accordance with the provisions of the Plan, Cash
and/or Securities where applicable, equal to the amount of such Allowed Claim
plus any Net Income earned thereon since the Effective Date.
 
     No holder of a Disputed Claim shall have any Claim against the Cash and
Securities reserved with respect to such Claim until such Disputed Claim shall
become an Allowed Claim. In no event shall any holder of any Disputed Claim be
entitled to receive (under the Plan or otherwise) from the Debtors or the
Reserve, any payment (in Cash, Securities or other property) which is greater
than the amount reserved for such Claim pursuant to Section 6.8 of the Plan plus
any Net Income earned thereon since the Effective Date. In no event shall the
Debtors or Reorganized Debtors have any responsibility or liability for any loss
to or of any amount reserved under the Plan.
 
     To the extent a Disputed Claim ultimately becomes an Allowed Claim in an
amount less than the amount reserved for such Disputed Claim, then the resulting
surplus of Cash and Securities (together with any Net Income thereon) shall be
retained in the Reserve and shall be distributed on each Reserve Surplus
Distribution Date or the Final Reserve Surplus Distribution Date, as the case
may be, Pro Rata among holders of Allowed Unsecured Claims and Disputed Claims
in Class 4; provided, however, that (a) except for the Final Reserve Surplus
Distribution Date, no distribution shall be made on a Reserve Surplus
Distribution Date unless, on such date, the aggregate amount, determined as of
the Effective Date, of Cash and Securities to be distributed from the Reserve is
at least $1,000,000, and (b) upon termination of the Reserve, any such surplus
remaining after satisfaction of all Allowed Unsecured Claims shall revert to,
and be retained by, Reorganized Lone Star.
 
                                       120
<PAGE>   128
 
D.  CONDITIONS PRECEDENT TO EFFECTIVENESS OF THE PLAN(76)
 
     The following provisions shall be the conditions precedent to the
effectiveness of the Plan. In general, the Debtors believe that such conditions
will be satisfied by effectuating settlements of claims and through additional
claim objections and as a result of projected Cash that will be available on the
Effective Date from operations and from asset dispositions.
 
          (a) The aggregate amount of Allowed Administrative Claims (other than
     those arising in the ordinary course of business and Professional Fees),
     Allowed Tax Claims, and Allowed Priority Claims shall not exceed $8,000,000
     (exclusive of amounts required to cure defaults in executory contracts or
     unexpired leases to be assumed pursuant to the Plan);
 
          (b) The aggregate amount of Allowed Secured Claims shall not exceed
     $4,000,000;
 
          (c) The aggregate amount of Allowed Unsecured Claims and the amounts
     to be reserved for Disputed Claims shall not exceed $577,000,000, of which
     the aggregate amount of Allowed 4A Unsecured Claims shall not exceed
     $23,200,000;
 
          (d) On the Effective Date, the Debtors shall have no less than
     $238,172,000 in Cash;
 
          (e) The Substantive Consolidation Order shall contain substantially
     the provisions set forth in Section 7.1 of the Plan;
 
          (f) Final Orders, in form and substance reasonably acceptable to the
     Creditors' Committee, shall be entered with respect to (i) the treatment of
     Claims in respect of Retiree Benefits (including modifications of plans or
     contracts pursuant to Section 1114 of the Bankruptcy Code) as set forth in
     the settlement respecting such Retiree Benefits described in Section
     III(G)(3)(c) of this Disclosure Statement; provided, however, that solely
     with respect to matters referred to in this clause (i), any Final Order
     shall also be in form and substance reasonably satisfactory to the Retiree
     Committee, (ii) treatment of all claims of (A) the PBGC, and (B) the United
     States Environmental Protection Agency, and (iii) claims and obligations
     arising under, in connection with or related to an Amended and Restated
     Conveyance of Production Payment Agreement dated as of September 1, 1988,
     by and between Lone Star and John Fouhey, as Trustee for Selleck Hill
     Trust; provided, however, that solely with respect to matters referred to
     in this clause (iii), any Final Order shall also be in form and substance
     reasonably satisfactory to the lenders under the Amended and Restated Term
     Loan Agreement dated as of September 1, 1988 among John Fouhey as Trustee
     for Selleck Hill Trust, the lenders thereunder and Morgan Guaranty Trust
     Company of New York, as Agent;
 
          (g) All documents contemplated to be executed or implemented in
     connection with the Plan including, without limitation, Exhibits G, H, I,
     L, M, N, P, Q, R, S, and T annexed to this Disclosure Statement, shall be
     in a form reasonably satisfactory to the Official Committee of Unsecured
     Creditors; and
 
          (h) The Debtors expressly reserve the right to waive any of the
     conditions set forth in Article IX of the Plan, except that no such
     condition may be waived without the consent of the Creditors' Committee
     and, solely with respect to clause (iii) of Section 9.6 of the Plan, the
     lenders under the Amended and Restated Term Loan Agreement dated as of
     September 1, 1988 among John Fouhey, as Trustee for Selleck Hill Trust, the
     lenders thereunder and Morgan Guaranty Trust Company of New York, as Agent.
 
     In addition, while the Debtors anticipate that the Effective Date will
occur in January, 1994, besides the conditions precedent to the Plan's
effectiveness discussed above, in the event an appeal is taken to the
Confirmation of the Plan, the effectiveness of the Plan could be delayed if the
party appealing obtains a stay of the Confirmation order pending the
determination of its appeal.
 
- ---------------
 
76 The form and substance of certain documents and orders respecting the
   treatment of claims must be approved by the Creditors' Committee because the
   holders of Allowed Unsecured Claims in Class 4 will collectively own at least
   85% of the New Lone Star Common Stock and it is essentially their recoveries
   that would be impacted by the terms of such documents and jeopardized by
   excessive claims of the relevant constituencies.
 
                                       121
<PAGE>   129
 
E.  DISSOLUTION OF COMMITTEES
 
     Each committee shall dissolve and all powers of each such committee shall
terminate as follows: (a) with respect to the Equity Committee, on the
Confirmation Date (except with respect to motions pending as of such date), (b)
with respect to the Retiree Committee, on the later of (i) the Effective Date,
or (ii) the date an order of the Bankruptcy Court respecting the treatment of
those Retiree Benefits of persons represented by such committee becomes a Final
Order; and (c) with respect to the Creditors' Committee, on the Final Reserve
Surplus Distribution Date. The Debtors believe that the respective termination
dates are in accordance with the Bankruptcy Code and are appropriate based on
the interests represented by each of the committees.
 
                                 X. CONCLUSION
 
     For the reasons set forth herein, the Debtors urge all holders of Claims or
Stock Interests which are or may be impaired under the Plan to vote to accept
the Plan, and to evidence such acceptance by returning their Ballots so that
they will be duly and timely received in the manner prescribed herein.
 
Dated: New York, New York
       November 4, 1993
 
                                            LONE STAR INDUSTRIES, INC., ET AL.
                                            Debtors and Debtors-in-Possession
 
                                            By: /s/ DAVID W. WALLACE
                                                David W. Wallace,
                                                Chairman and Chief Executive
                                                Officer
 
PROSKAUER ROSE GOETZ & MENDELSOHN
Counsel to the Debtors and
Debtors-in-Possession
 
By: /s/ ALAN B. HYMAN
    Alan B. Hyman, Esq. (AH 6655)
    A Member of the Firm
    1585 Broadway
    New York, New York 10036
    (212) 969-3000
 
                                       122
<PAGE>   130
 
                         UNITED STATES BANKRUPTCY COURT
                         SOUTHERN DISTRICT OF NEW YORK
 
- ------------------------------------------                                 
                                         ) 
In re:                                   )
                                         )
NEW YORK TRAP ROCK CORPORATION,          )
LONE STAR INDUSTRIES, INC.,              )
SAN-VEL CONCRETE CORPORATION,            )
NYTR TRANSPORTATION CORPORATION,         )           Chapter 11
LONE STAR CEMENT INC.,                   )                                    
CONSTRUCTION MATERIALS COMPANY,          )           Case Nos. 90 B 21276 to  
I.C. MATERIALS, INC., LONE STAR          )                     90 B 21286,    
PRESTRESS CONCRETE, INC., LONE           )                     90 B 21334 and 
STAR PROPERTIES, INC., SOUTHERN          )                     90 B 21335 (HS)
AGGREGATES, INC., LONE STAR              )                                    
TRANSPORTATION CORPORATION, LONE         )           (Jointly Administered)   
STAR BUILDING CENTERS, INC. and          )
LONE STAR BUILDING CENTERS               )
(EASTERN) INC.,                          )
                                         )
                              Debtors.   )
                                         )
- ------------------------------------------                                 
                                          
         DEBTORS' MODIFIED AMENDED CONSOLIDATED PLAN OF REORGANIZATION
 
Dated: November 4, 1993
       New York, New York
<PAGE>   131
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                      PAGE
                                                                                     ------
<S>            <C>                                                                   <C>
ARTICLE I      DEFINITIONS...........................................................    A-1
     1.1       "Administrative Claim"................................................    A-1
     1.2       "Allowed Claim".......................................................    A-1
     1.3       "Allowed Common Stock Interest".......................................    A-2
     1.4       "Allowed Convenience Claim"...........................................    A-2
     1.5       "Allowed Equity Interests in Subsidiaries"............................    A-2
     1.6       "Allowed 4A Unsecured Claim"..........................................    A-2
     1.7       "Allowed 4B Unsecured Claim"..........................................    A-2
     1.8       "Allowed Preferred Stock Interest"....................................    A-2
     1.9       "Allowed Priority Claim"..............................................    A-2
     1.10      "Allowed Secured Claim"...............................................    A-2
     1.11      "Allowed Tax Claim"...................................................    A-2
     1.12      "Allowed Unsecured Claim".............................................    A-2
     1.13      "Asset Proceeds Note Indenture".......................................    A-2
     1.14      "Asset Proceeds Note Trustee".........................................    A-2
     1.15      "Asset Proceeds Notes"................................................    A-2
     1.16      "Available Cash"......................................................    A-3
     1.17      "Bankruptcy Code".....................................................    A-3
     1.18      "Bankruptcy Court"....................................................    A-3
     1.19      "Bankruptcy Rules"....................................................    A-3
     1.20      "Bar Date"............................................................    A-3
     1.21      "Business Day"........................................................    A-3
     1.22      "Cash"................................................................    A-3
     1.23      "Claim"...............................................................    A-3
     1.24      "Claimant"............................................................    A-3
     1.25      "Class"...............................................................    A-3
     1.26      "Collateral Agency Agreement".........................................    A-4
     1.27      "Committees"..........................................................    A-4
     1.28      "Common Stock"........................................................    A-4
     1.29      "Confirmation"........................................................    A-4
     1.30      "Confirmation Date"...................................................    A-4
     1.31      "Confirmation Order"..................................................    A-4
     1.32      "Contingent Claim"....................................................    A-4
     1.33      "Core Assets".........................................................    A-4
     1.34      "Covered Deficiency"..................................................    A-4
     1.35      "Debtors".............................................................    A-5
     1.36      "Disclosure Statement"................................................    A-5
     1.37      "Disputed Claim"......................................................    A-5
     1.38      "Effective Date"......................................................    A-5
     1.39      "Escrow Agent"........................................................    A-5
     1.40      "Estates".............................................................    A-5
     1.41      "Filing Date".........................................................    A-5
     1.42      "Final Order".........................................................    A-5
     1.43      "Final Reserve Surplus Distribution Date".............................    A-5
     1.44      "Intercompany Claim"..................................................    A-5
     1.45      "Litigations".........................................................    A-5
     1.46      "Lone Star"...........................................................    A-6
     1.47      "Net Income"..........................................................    A-6
     1.48      "New Lone Star Charter"...............................................    A-6
</TABLE>
 
                                        i
<PAGE>   132
 
<TABLE>
<CAPTION>
                                                                                      PAGE
                                                                                     ------
<S>            <C>                                                                   <C>
     1.49      "New Lone Star Common Stock"..........................................    A-6
     1.50      "NewCo"...............................................................    A-6
     1.51      "NewCo Charter".......................................................    A-6
     1.52      "Non-Core Assets".....................................................    A-6
     1.53      "Person"..............................................................    A-7
     1.54      "Plan"................................................................    A-7
     1.55      "Pledge Agreement"....................................................    A-7
     1.56      "Preferred Stock".....................................................    A-7
     1.57      "Pro Rata"............................................................    A-7
     1.58      "Professional Fees"...................................................    A-7
     1.59      "Professional Fee Reserve"............................................    A-7
     1.60      "Professionals".......................................................    A-7
     1.61      "Record Date".........................................................    A-7
     1.62      "Reorganization Cases"................................................    A-8
     1.63      "Reorganized Debtors".................................................    A-8
     1.64      "Reorganized Lone Star"...............................................    A-8
     1.65      "Reorganized Lone Star Guarantee".....................................    A-8
     1.66      "Reorganized Lone Star Warrants"......................................    A-8
     1.67      "Reserve".............................................................    A-8
     1.68      "Reserve Amount"......................................................    A-8
     1.69      "Reserve Expenses"....................................................    A-8
     1.70      "Reserve Surplus Distribution Date"...................................    A-8
     1.71      "Retiree Benefits"....................................................    A-8
     1.72      "Scheduling Order"....................................................    A-8
     1.73      "Securities"..........................................................    A-8
     1.74      "Senior Note Indenture"...............................................    A-9
     1.75      "Senior Note Trustee".................................................    A-9
     1.76      "Senior Notes"........................................................    A-9
     1.77      "Stock Interests".....................................................    A-9
     1.78      "Stock Option Plans"..................................................    A-9
     1.79      "Subsidiary"..........................................................    A-9
     1.80      "Substantive Consolidation Order".....................................    A-9
     1.81      "Warrant Agreement"...................................................    A-9
ARTICLE II     CLASSIFICATION OF CLAIMS AND INTERESTS................................    A-9
     2.1       Criterion of Class....................................................    A-9
     2.2       Allowed Claims and Stock Interests....................................    A-9
ARTICLE III    PAYMENT OF ALLOWED ADMINISTRATIVE CLAIMS AND ALLOWED TAX CLAIMS.......   A-10
     3.1       Administrative Claims.................................................   A-10
     3.2       Tax Claims............................................................   A-10
     3.3       Professional Fees.....................................................   A-10
ARTICLE IV     CLAIMS AND INTERESTS NOT IMPAIRED UNDER THE PLAN......................   A-11
     4.1       Non-Impairment........................................................   A-11
     4.2       Class 1 (Priority Claims).............................................   A-11
     4.3       Class 3 (Convenience Claims)..........................................   A-11
     4.4       Class 8 (Equity Interests in Subsidiaries)............................   A-11
ARTICLE V      CLAIMS AND STOCK INTERESTS IMPAIRED UNDER THE PLAN....................   A-11
     5.1       Class 2 (Secured Claims)..............................................   A-11
     5.2       Class 4 (Unsecured Claims)............................................   A-12
     5.2.1     Class 4A..............................................................   A-12
     5.2.2     Class 4B..............................................................   A-13
</TABLE>
 
                                       ii
<PAGE>   133
 
<TABLE>
<CAPTION>
                                                                                      PAGE
                                                                                     ------
<S>            <C>                                                                   <C>
     5.3       Class 5 (Allowed Preferred Stock Interests)...........................   A-14
     5.4       Class 6 (Allowed Common Stock Interests)..............................   A-14
     5.5       Class 7 (Rescission and Damage Claims Respecting Common Stock)........   A-15
     5.6       Class 9 (Intercompany Claims).........................................   A-15
     5.7       Nonconsensual Confirmation............................................   A-15
     5.8       Full and Final Satisfaction...........................................   A-15
     5.9       Fractional Cents......................................................   A-15
     5.10      Fractional Distributions; Round Lots..................................   A-15
     5.11      Blank Ballots.........................................................   A-16
     5.12      Allocation of Distributions to Holders of Allowed Claims..............   A-16
ARTICLE VI     MEANS OF EXECUTION....................................................   A-16
     6.1       Asset Dispositions....................................................   A-16
     6.2       Transfer of Assets to NewCo...........................................   A-16
     6.3       New Lone Star Charter.................................................   A-16
     6.4       NewCo Charter.........................................................   A-16
     6.5       Issuance of New Securities............................................   A-16
     6.6       Voting Powers.........................................................   A-17
     6.7       Disbursement of Funds and Delivery of Securities......................   A-17
     6.8       Reserve Provisions for Disputed Claims................................   A-17
     6.9       Disputed Payments.....................................................   A-18
     6.10      Unclaimed Property....................................................   A-18
     6.11      Set-Offs..............................................................   A-18
     6.12      Withholding Taxes.....................................................   A-18
     6.13      Revesting.............................................................   A-18
     6.14      Discharge.............................................................   A-18
     6.15      Releases..............................................................   A-18
     6.16      Effect of Unsecured Claim Reduction Election..........................   A-19
     6.17      Issuance of Cash or Securities to Indenture Trustee or Fiscal Agent...   A-19
     6.18      Carrying Out of Terms.................................................   A-19
     6.19      Extinguishment of Liens...............................................   A-19
     6.20      Registration Rights...................................................   A-19
ARTICLE VII    SUBSTANTIVE CONSOLIDATION.............................................   A-19
     7.1       Substantive Consolidation.............................................   A-19
     7.2       Extinguishment of Guarantees..........................................   A-19
ARTICLE VIII   EXECUTORY CONTRACTS, INDEMNIFICATION CLAIMS AND RETIREE BENEFITS......   A-20
     8.1       Executory Contracts and Unexpired Leases..............................   A-20
     8.2       Indemnification and Contribution Obligations..........................   A-20
     8.3       Retiree Benefits......................................................   A-21
ARTICLE IX     CONDITIONS PRECEDENT TO EFFECTIVENESS OF THE PLAN.....................   A-21
ARTICLE X      RETENTION OF JURISDICTION.............................................   A-22
ARTICLE XI     MISCELLANEOUS.........................................................   A-22
     11.1      Termination of Committees.............................................   A-22
     11.2      Headings..............................................................   A-22
     11.3      Defects, Omissions and Amendments.....................................   A-22
     11.4      Governing Law.........................................................   A-23
     11.5      Notices...............................................................   A-23
</TABLE>
 
                                       iii
<PAGE>   134
 
<TABLE>
<CAPTION>
                                                                                      PAGE
                                                                                     ------
<S>            <C>                                                                   <C>
     11.6      Severability..........................................................   A-23
     11.7      Revocation and Withdrawal.............................................   A-23
     11.8      Effect of Withdrawal or Revocation....................................   A-23
     11.9      Confirmation Order....................................................   A-23
     11.10     Implementation........................................................   A-24
</TABLE>
 
                                       iv
<PAGE>   135
 
                         UNITED STATES BANKRUPTCY COURT
                         SOUTHERN DISTRICT OF NEW YORK
 
- ---------------------------------------                                      
                                      )
In re:                                )              Chapter 11
                                      )                        
NEW YORK TRAP ROCK CORPORATION,       )              Case Nos. 90 B 21276 to
LONE STAR INDUSTRIES, INC.,           )                        90 B 21286,
et al.,                               )                        90 B 21334 and
                                      )                        90 B 21335 (HS)
                              Debtors.)
                                      )              (Jointly Administered)
- ---------------------------------------                                      
                                     
         DEBTORS' MODIFIED AMENDED CONSOLIDATED PLAN OF REORGANIZATION
 
     Lone Star Industries, Inc., New York Trap Rock Corporation, San-Vel
Concrete Corporation, NYTR Transportation Corp., Lone Star Cement Inc.,
Construction Materials Company, I.C. Materials, Inc., Lone Star Prestress
Concrete, Inc., Lone Star Properties, Inc., Southern Aggregates, Inc., Lone Star
Transportation Corporation, Lone Star Building Centers, Inc. and Lone Star
Building Centers (Eastern) Inc. propose the following Modified Amended
Consolidated Plan of Reorganization pursuant to Section 1121(a) of the
Bankruptcy Code:
                                   ARTICLE I
 
                                  DEFINITIONS
 
     For purposes of this Modified Amended Consolidated Plan of Reorganization,
the following terms shall have the meanings herein set forth. Unless otherwise
indicated, the singular shall include the plural. Capitalized terms shall at all
times refer to the terms as defined in this Article.
 
     1.1  "Administrative Claim" shall mean a Claim for any cost or expense of
administration of the Reorganization Cases, allowed under Section 503(b) of the
Bankruptcy Code that is entitled to priority under Section 507(a)(1) of the
Bankruptcy Code, including, without limitation, fees and expenses of
Professionals to the extent allowed by the Bankruptcy Court under Sections 330,
331, or 503 of the Bankruptcy Code and all fees and charges assessed against the
Debtors' Estates pursuant to 28 U.S.C. sec. 1930.
 
     1.2  "Allowed Claim" shall mean a Claim: (a) that has been scheduled by the
Debtors pursuant to Section 521(1) of the Bankruptcy Code and Bankruptcy Rule
1007 and (i) is not scheduled as disputed, contingent or unliquidated, and (ii)
is not a Claim as to which a proof of Claim has been filed; (b) is a Claim, or a
portion of a Claim (if applicable), as to which a timely proof of Claim has been
filed as of the Bar Date and no objection thereto (or, if an objection has been
made only to a portion of a Claim, the portion as to which no objection has been
made), or application to equitably subordinate or otherwise limit recovery (or,
if such application relates only to a portion of a Claim, the portion to which
the Application does not relate), has been made on or before any applicable
deadline; or (c) has been allowed by a Final Order. "Allowed Claim" shall not
include interest on the amount of any Claim except with respect to an Allowed
Secured Claim as permitted by Section 506(b) of the Bankruptcy Code.
 
                                       A-1
<PAGE>   136
 
     1.3  "Allowed Common Stock Interest" shall mean any interest in the Common
Stock, $1.00 par value, exclusive of any shares of such stock held in treasury
(other than Claims for rescission and damages respecting the purchase of Common
Stock), which is registered as of the Record Date in such stock register as may
be maintained by or on behalf of Lone Star, and to which no objection has been
made on or before any applicable deadline, or which has been allowed as a Final
Order.
 
     1.4  "Allowed Convenience Claim" shall mean Allowed Unsecured Claims of a
single holder that are either (i) $5,000 or less in the aggregate, or (ii)
greater than $5,000 in the aggregate but as to which the holder thereof elects
to reduce to $5,000 in the manner set forth on the ballot for accepting or
rejecting the Plan, and the effect of which election is described in Section
6.16 of this Plan.
 
     1.5  "Allowed Equity Interests in Subsidiaries" shall mean all equity
interests held by any Debtor and/or any third parties in any of the Debtors'
subsidiaries.
 
     1.6  "Allowed 4A Unsecured Claim" shall mean an Allowed Unsecured Claim
against any of the following Debtors that is not an Intercompany Claim, Allowed
Convenience Claim or an Allowed Claim in Class 7 of this Plan: (i) Construction
Materials Company, (ii) I.C. Materials, Inc., (iii) Lone Star Cement Inc., (iv)
New York Trap Rock Corporation, or (v) Southern Aggregates, Inc.
 
     1.7  "Allowed 4B Unsecured Claim" shall mean any Allowed Unsecured Claim
that is not an Allowed 4A Unsecured Claim, Intercompany Claim, Allowed
Convenience Claim or an Allowed Claim in Class 7 of this Plan.
 
     1.8  "Allowed Preferred Stock Interest" shall mean any interest in the
Preferred Stock, and any Claims arising thereunder, including, without
limitation, the par value and the accrued and unpaid dividends thereon whether
or not declared, which interests are registered on the Record Date in such stock
register as may be maintained by or on behalf of Lone Star, and as to which no
objection has been made on or before any applicable deadline, or which has been
allowed by a Final Order.
 
     1.9  "Allowed Priority Claim" shall mean that portion of an Allowed Claim,
if any, entitled to priority under Section 507(a) of the Bankruptcy Code,
exclusive of Allowed Tax Claims and Allowed Administrative Claims.
 
     1.10  "Allowed Secured Claim" shall mean that portion of an Allowed Claim,
equal to the value, as determined by the Bankruptcy Court pursuant to Section
506(a) of the Bankruptcy Code and Bankruptcy Rule 3012, of the interest of the
holder of the Allowed Secured Claim in the property of any of the Debtors
securing such Allowed Secured Claim.
 
     1.11  "Allowed Tax Claim" shall mean that portion of an Allowed Claim
entitled to priority under Section 507(a)(7) of the Bankruptcy Code.
 
     1.12  "Allowed Unsecured Claim" shall mean any Allowed Claim that is not an
Allowed Administrative Claim, an Allowed Priority Claim, an Allowed Secured
Claim or an Allowed Tax Claim.
 
     1.13  "Asset Proceeds Note Indenture" shall mean the indenture pursuant to
which the Asset Proceeds Notes will be issued, to be in the form annexed to the
Disclosure Statement as Exhibit "M", with such deletions, additions,
modifications or other revisions as shall be negotiated between the Debtors and
the Official Committee of Unsecured Creditors to their mutual satisfaction.
 
     1.14  "Asset Proceeds Note Trustee" shall mean such entity selected by the
Debtors and reasonably acceptable to the Official Committee of Unsecured
Creditors who shall act as indenture trustee under the Asset Proceeds Note
Indenture and who will maintain the register respecting the Asset Proceeds
Notes.
 
     1.15  "Asset Proceeds Notes" shall mean the notes of NewCo in the aggregate
principal amount of $138,118,000 less, on a dollar for dollar basis, the
aggregate net proceeds from disposition of the Non-Core Assets consummated prior
to the Effective Date, in $1,000 increments, issued pursuant to the Asset
Proceeds Note Indenture, which shall mature on July 31, 1997 without prior
amortization other than with respect to net proceeds of Non-Core Asset
dispositions, and which shall be (i) the subject of the Reorganized Lone Star
Guarantee, and (ii) secured by first priority liens and security interests,
subject to valid and perfected existing
 
                                       A-2
<PAGE>   137
 
liens and security interests, as the case may be, on all of the assets of NewCo
pursuant to the Collateral Agency Agreement; provided, however, that, upon
maturity of the Asset Proceeds Notes, the Asset Proceeds Note Trustee may either
(i)(a) enforce the Reorganized Lone Star Guarantee and, upon payment under such
guarantee or the issuance of promissory notes of Reorganized Lone Star pursuant
to the terms of such guarantee, there shall be a corresponding reduction of the
Assets Proceeds Notes and (b) enforce its rights against the Non-Core Assets,
but only to the extent of the outstanding obligations under the Asset Proceeds
Notes after deduction of payments made under the Reorganized Lone Star
Guarantee, or (ii) defer, with the approval of a requisite percentage of the
holders of the Asset Proceeds Notes, enforcing the Reorganized Lone Star
Guarantee and its rights under the Asset Proceeds Notes and the Asset Proceeds
Notes Indenture for up to three one-year periods from the original maturity date
of such notes. The Asset Proceeds Notes shall bear simple interest at the rate
of ten percent (10%) per annum payable in semi-annual installments; provided,
however, that NewCo may, if it does not have sufficient cash, pay all or a
portion of such interest when due (or within any applicable grace period) by the
issuance of additional Asset Proceeds Notes (which additional notes shall, in
all respects, contain the same terms and maturity as those Asset Proceeds Notes
issued on the Effective Date).
 
     1.16  "Available Cash" shall mean all Cash of the Debtors on the Effective
Date after deduction of (i) amounts to be distributed to the Professional Fee
Reserve (currently estimated to be $8,100,000), (ii) $26,000,000 for working
capital requirements of Reorganized Lone Star, (iii) $2,400,000 for a Bankruptcy
Court approved retention program, (iv) $1,600,000 for estimated severance
payments, (v) $5,000,000 to capitalize NewCo, (vi) $1,500,000 for certain
post-Effective Date Chapter 11 costs, and (vii) Cash to be distributed to
holders of Administrative Claims, Allowed Convenience Claims, Allowed Priority
Claims, Allowed Secured Claims, and Allowed Tax Claims pursuant to this Plan.
 
     1.17  "Bankruptcy Code" shall mean the Bankruptcy Reform Act of 1978, 11
U.S.C. sec.sec. 101 et seq. as in effect on the Filing Date, as the same
thereafter has been and may be amended.
 
     1.18  "Bankruptcy Court" shall mean the United States Bankruptcy Court for
the Southern District of New York or such other court as may hereafter be
granted primary jurisdiction over the Reorganization Cases.
 
     1.19  "Bankruptcy Rules" shall mean the Federal Rules of Bankruptcy
Procedure, effective August 1, 1991 in accordance with the provisions of 28
U.S.C. sec. 2075 as the same thereafter has been and may be amended.
 
     1.20  "Bar Date" shall mean October 15, 1991, which is the date fixed by
order of the Bankruptcy Court by which all Persons asserting a Claim against the
Debtors must have filed a proof of claim or be forever barred from asserting a
Claim against the Debtors or their property, and from voting on the Plan and/or
sharing in distribution thereunder or such other date as may have been fixed by
order of the Bankruptcy Court.
 
     1.21  "Business Day" shall mean any day other than a Saturday, Sunday or
legal holiday as such term is defined in Bankruptcy Rule 9006.
 
     1.22  "Cash" means cash, cash equivalents (including personal checks drawn
on a bank insured by the Federal Deposit Insurance Corporation, certified checks
and money orders) and other readily marketable direct obligations of the United
States of America and certificates of deposit issued by banks.
 
     1.23  "Claim" shall mean a Claim against the Debtors as defined in Section
101(5) of the Bankruptcy Code, to wit:
 
          (a) a right to payment, whether or not such right is reduced to
     judgment, liquidated, unliquidated, fixed, contingent, matured, unmatured,
     disputed, undisputed, legal, equitable, secured, or unsecured; or
 
          (b) a right to an equitable remedy for breach of performance if such
     breach gives rise to a right to payment, whether or not such right to an
     equitable remedy is reduced to judgment, fixed, contingent, matured,
     unmatured, disputed, undisputed, secured, or unsecured.
 
     1.24  "Claimant" shall mean the holder of a Claim.
 
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<PAGE>   138
 
     1.25  "Class" shall mean a category of Claimants holding Claims or holders
of Stock Interests which are substantially similar in nature to the Claims of
the other Claimants or the Stock Interests of other holders in such Class, as
classified pursuant to the Plan.
 
     1.26  "Collateral Agency Agreement" shall mean the agreement respecting the
granting of liens and security interests on all of the assets of NewCo to secure
the obligations of NewCo under the Asset Proceeds Notes, to be in the form
annexed to the Disclosure Statement as Exhibit "G", with such deletions,
additions, modifications or other revisions as shall be negotiated between the
Debtors and the Official Committee of Unsecured Creditors to their mutual
satisfaction.
 
     1.27  "Committees" shall mean, collectively, the Official Committee of
Unsecured Creditors, the Official Committee of Equity Security Holders and the
Official Committee of Retired Employees appointed in the Reorganization Cases as
the same may be constituted from time to time.
 
     1.28  "Common Stock" shall mean the presently authorized $1.00 par value
per share common stock of Lone Star, exclusive of any shares of such stock held
in treasury.
 
     1.29  "Confirmation" shall mean entry of an order by the Bankruptcy Court
confirming the Plan pursuant to Section 1129 of the Bankruptcy Code.
 
     1.30  "Confirmation Date" shall mean the date upon which the Confirmation
Order is entered by the Bankruptcy Court. The Confirmation Date may be adjourned
by the Bankruptcy Court from time to time without further notice other than the
announcement of the adjourned date at the hearing to consider Confirmation of
the Plan.
 
     1.31  "Confirmation Order" shall mean the order of the Bankruptcy Court
confirming the Plan pursuant to Section 1129 of the Bankruptcy Code.
 
     1.32  "Contingent Claim" shall mean any Claim for which a proof of claim
has been filed with the Bankruptcy Court but was not filed in a sum certain and
which Claim has not been fixed by the Bankruptcy Court at a sum certain.
 
     1.33  "Core Assets" shall mean the Debtors' interests in all assets other
than the Non-Core Assets, including, without limitation, the following:
 
          (i) cement plants located in Greencastle, Indiana; Medley, Florida;
     Cape Girardeau, Missouri; Pryor, Oklahoma; Maryneal, Texas; and Oglesby,
     Illinois and related terminals;
 
          (ii) Construction Materials Company;
 
          (iii) I.C. Materials, Inc.;
 
          (iv) Memphis Ready Mix, a division of Lone Star;
 
          (v) Kosmos Cement Company;
 
          (vi) New York Trap Rock Corporation; and
 
          (vii) Construction Aggregates Limited.
 
     1.34  "Covered Deficiency" shall mean the excess, if any, of (a) the sum of
(i) $88,118,000 less, on a dollar for dollar basis, the aggregate net proceeds
from dispositions of the Non-Core Assets consummated prior to Confirmation, plus
(ii) interest accrued on such amount (reduced from time to time by all payments
(principal and interest) made by the obligor under the Asset Proceeds Notes and
by the amount (principal and accrued interest) of any Asset Proceeds Notes
redeemed or otherwise purchased by such obligor or its affiliates) from the
Effective Date to the date in respect of which the calculation of Covered
Deficiency is to be made, at the rate of 10% per annum compounded every six
months over (b) the sum of all amounts paid (principal and interest) to the
Asset Proceeds Note Trustee with respect to the Asset Proceeds Notes by the
obligor thereunder and the amount of Asset Proceeds Notes redeemed or otherwise
purchased by such obligor or its affiliates (other than from the obligor or its
affiliates) on or prior to the date in respect of which the
 
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<PAGE>   139
 
calculation of Covered Deficiency is to be made; provided, however, that in no
event shall the Covered Deficiency exceed $20,000,000 plus interest accrued
thereon from the Effective Date to the date in respect of which the calculation
of Covered Deficiency is to be made, at the rate of 10% per annum, compounded
every six months.
 
     1.35  "Debtors" shall mean, collectively, New York Trap Rock Corporation,
Lone Star Industries, Inc., San-Vel Concrete Corporation, NYTR Transportation
Corp., Lone Star Cement Inc., Construction Materials Company, I.C. Materials,
Inc., Lone Star Prestress Concrete, Inc., Lone Star Properties, Inc., Southern
Aggregates, Inc. and Lone Star Transportation Corporation, all of which filed
their respective voluntary petitions for reorganization pursuant to Chapter 11
of the Bankruptcy Code on December 10, 1990, and Lone Star Building Centers,
Inc. and Lone Star Building Centers (Eastern) Inc., both of which filed their
respective voluntary petitions for reorganization pursuant to Chapter 11 of the
Bankruptcy Code on December 21, 1990.
 
     1.36  "Disclosure Statement" shall mean the Disclosure Statement respecting
the Plan filed by the Debtors in the Reorganization Cases and approved by order
of the Bankruptcy Court as containing adequate information in accordance with
Section 1125 of the Bankruptcy Code.
 
     1.37  "Disputed Claim" shall mean (i) any Claim as to which an objection to
the allowance thereof has been interposed as of the Effective Date or any date
fixed by order of the Bankruptcy Court or, if the objection is to a portion of a
Claim, the portion of a Claim to which the objection is made and which objection
has not been determined by a Final Order, or (ii) a Contingent Claim.
 
     1.38  "Effective Date" shall mean the first Business Day following the date
upon which the Confirmation Order becomes a Final Order, or a date as soon as
practicable thereafter that the Debtors are able to effectuate the distributions
described in this Plan, but such date shall in no event be (i) earlier than
January 3, 1994, or (ii) later than January 31, 1994 unless extended by order of
the Bankruptcy Court.
 
     1.39  "Escrow Agent" shall mean the bank, trust company, or other
organization independent of the Debtors, selected by the Debtors and reasonably
acceptable to the Official Committee of Unsecured Creditors pursuant to an
agreement approved by the Bankruptcy Court, designated to act as escrow agent
with respect to the Reserve contemplated by Section 6.8 of this Plan.
 
     1.40  "Estates" shall mean the estates created in the Reorganization Cases
by Section 541 of the Bankruptcy Code.
 
     1.41  "Filing Date" shall mean, with respect to each of the Debtors, the
date upon which such Debtor filed its voluntary Chapter 11 petition pursuant to
Chapter 11 of the Bankruptcy Code.
 
     1.42  "Final Order" shall mean an order or judgment of the Bankruptcy Court
which has not been reversed, stayed, modified or amended and as to which the
time to appeal or seek review, rehearing, reargument or certiorari has expired
or as to which any right to appeal or to seek certiorari, review, or rehearing
has been waived.
 
     1.43  "Final Reserve Surplus Distribution Date" shall mean the first
Business Day occurring thirty (30) days, or as soon as practicable thereafter,
after the date upon which the last Disputed Claim becomes an Allowed Claim or is
expunged or, if later, the last date on which Cash or Securities may be claimed
under Section 6.10 of this Plan.
 
     1.44  "Intercompany Claim" shall mean all claims and obligations by and
among the Debtors and between any of the Debtors and their (either direct or
indirect) non-Debtor subsidiaries.
 
     1.45  "Litigations" shall mean the Debtors' interests in the following
litigations: (i) Lone Star Industries, Inc. v. Compania Naviera Perez Companc;
S.A.C.F.I.M.F.A., et al., Case No. 93CIV.5480 (VLB) (United States District
Court, Southern District of New York); (ii) any and all actions which have been
or may be commenced by the Debtors to avoid and recover transfers of property
pursuant to Sections 544, 547, 548 and 550 of the Bankruptcy Code including,
without limitation, the following: (a) Lone Star Industries, Inc. v. Aid
Association for the Lutherans, et al.; Ad. Pro. No. 92-5443A (United States
Bankruptcy Court,
 
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<PAGE>   140
 
Southern District of New York); (b) Lone Star Industries, Inc. v. The Minnesota
Mutual Life Insurance Co., et al., Ad. Pro. No. 92-5444A (United States
Bankruptcy Court, Southern District of New York); (c) Lone Star Industries, Inc.
v. Farmers Group, Inc., et al., Ad. Pro. No. 92-5445A (United States Bankruptcy
Court, Southern District of New York); (d) Lone Star Industries, Inc. v. Morgan
Guaranty Trust Company of New York, et al., Ad. Pro. No. 92-5446A (United States
Bankruptcy Court, Southern District of New York); (e) Lone Star Industries, Inc.
v. The Prudential Insurance Company of America, Ad. Pro. No. 92-5447A (United
States Bankruptcy Court, Southern District of New York); and (f) Lone Star
Industries, Inc. v. Tom G. Guennewig, Ad. Pro. No. 93-5201A (United States
Bankruptcy Court, Southern District of New York); (iii) Lone Star Industries,
Inc., et al. v. Lafarge Corp., et al., Case No. 93-1505(L) and Lafarge Corp., et
al. v. Lone Star Industries, Inc., et al., Case No. 93-1506 (XAP) (United States
Court of Appeals for the Fourth Circuit); and (iv) Lone Star Industries, Inc. v.
Liberty Mutual Insurance Company, et al., Civil Action No. 89C-SE-187 (Superior
Court, State of Delaware).
 
     1.46  "Lone Star" shall mean Lone Star Industries, Inc., a Delaware
corporation, and when used in this Plan, shall mean such corporation either as
Debtor or Debtor and Debtor-in-Possession in Case No. 90 B 21277 and/or as
Reorganized Lone Star, depending on the context of the use thereof.
 
     1.47  "Net Income" with respect to amounts paid out by the Reserve shall
mean the amount of interest theretofore earned by the Reserve on amounts which
would have otherwise been distributable, less a Pro Rata Portion of the Reserve
Expenses as of such date. For purposes of this definition of Net Income, a "Pro
Rata Portion" of the Reserve Expenses as of a date in respect of a particular
amount shall mean the product of (a) the Reserve Expenses as of such date
multiplied by (b) the fraction the numerator of which is the aggregate amount of
interest theretofore earned on such particular cash amount (based upon the
average rate of interest earned on all the interest-bearing accounts in which
the Reserve is invested as estimated by the Escrow Agent), as the case may be,
and the denominator of which is the total of all interest theretofore earned by
the Reserve. For purposes of determining Net Income as of a date, the Escrow
Agent may estimate Reserve Expenses as of such date by any reasonable method as
approved in writing by the Debtors.
 
     1.48  "New Lone Star Charter" shall mean the amended and restated articles
of incorporation and by-laws of Reorganized Lone Star, to be in the forms
annexed to the Disclosure Statement as Exhibits "H" and "I", respectively, with
such deletions, additions, modifications or other revisions as shall be
negotiated between the Debtors and the Official Committee of Unsecured Creditors
to their mutual satisfaction.
 
     1.49  "New Lone Star Common Stock" shall mean the $1.00 par value common
stock of Reorganized Lone Star issued pursuant to this Plan.
 
     1.50  "NewCo" shall mean Rosebud Holdings, Inc., a Delaware corporation and
wholly-owned subsidiary of Reorganized Lone Star to be formed pursuant to this
Plan and capitalized with an equity contribution of $5,000,000 in cash upon
formation and which will (i) be the transferee of the Non-Core Assets (including
liabilities associated therewith and subject to valid and perfected existing
liens and security interests) and (ii) issue the Asset Proceeds Notes.
 
     1.51  "NewCo Charter" shall mean the articles of incorporation and by-laws
of NewCo, to be in the form annexed to the Disclosure Statement as Exhibits "P"
and "Q", respectively, with such deletions, additions, modifications or other
revisions as shall be negotiated between the Debtors and the Official Committee
of Unsecured Creditors to their mutual satisfaction.
 
     1.52  "Non-Core Assets" shall mean the Debtors' interests (including
associated liabilities) in those assets being transferred to NewCo including,
but not limited to, the following assets, provided that the Debtors' interests
in such assets have not been disposed of prior to the Effective Date:
 
          (i) Companhia Nacional de Cimento Portland;
 
          (ii) (a) RMC LONESTAR; (b) a Lease and Sublease dated December 31,
     1987 between RMC LONESTAR and Lone Star Industries, Inc.; and (c)
     Promissory Notes dated June 30, 1993 executed by RMC LONESTAR in favor of
     Lone Star California, Inc.;
 
          (iii) Lone Star-Falcon;
 
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<PAGE>   141
 
          (iv) Hawaiian Cement;
 
          (v) cement plants located in Nazareth, Pennsylvania; and Santa Cruz,
     California;
 
          (vi) the Litigations;
 
          (vii) a Promissory Note dated April 7, 1987 executed by Arthur A.
     Riedel in favor of Lone Star Industries, Inc. and related agreements; and
 
          (viii) certain surplus real property comprised of: 127 acres in
     Irving, Texas (Las Colinas); 182 acres in Fort Worth, Texas; 515 acres in
     Dallas, Texas (Echo Valley); 7 acres in North Miami, Florida (Ojus); 16
     acres in Tampa, Florida; 44 acres in Dania, Florida; 126 acres in Ayer,
     Massachusetts (Stoneybrook); 561 acres in Groton, Massachusetts; 190 acres
     in Littleton, Massachusetts (San-Vel Prestress Building); 255 acres in
     Henrico County, Virginia; 147 acres in Colonial Heights, Virginia; 90 acres
     in Prince Georges County, Maryland; 9 acres in Dallas, Texas (Lone Star
     Park); 13 acres in Houston, Texas (Pole Plant Site); 13 acres in New
     Orleans, Louisiana; 170 acres in Ayer, Massachusetts (Long Pond); and 8
     acres in Minneapolis, Minnesota (Eagan).
 
     1.53  "Person" shall mean any individual, corporation, partnership, joint
venture, trust, estate, unincorporated association, or organization,
governmental entity or political subdivision thereof, or any other entity.
 
     1.54  "Plan" shall mean this modified amended consolidated Chapter 11 plan
of reorganization and any exhibits hereto and any documents incorporated herein
by reference, as the same may from time to time be amended as and to the extent
permitted herein or by the Bankruptcy Code.
 
     1.55  "Pledge Agreement" shall mean the agreement to be executed by
Reorganized Lone Star, to be in the form annexed to the Disclosure Statement as
Exhibit "R", with such deletions, additions, modifications or other revisions as
shall be negotiated between the Debtors and the Official Committee of Unsecured
Creditors to their mutual satisfaction, pursuant to which Reorganized Lone Star
shall pledge its right, title and interest in all of the issued and outstanding
common stock of NewCo to the Asset Proceeds Note Trustee to secure Reorganized
Lone Star's obligations under the Reorganized Lone Star Guarantee.
 
     1.56  "Preferred Stock" shall mean, collectively, (i) the presently
authorized $13.50 cumulative convertible preferred shares, par value $1.00 per
share, of Lone Star, and (ii) the presently authorized $4.50 cumulative
convertible preferred shares, par value $1.00 per share, of Lone Star.
 
     1.57  "Pro Rata" shall mean the ratio of an Allowed Claim or Stock Interest
in a particular Class to the aggregate amount of all Allowed Claims or Stock
Interests in that Class.
 
     1.58  "Professional Fees" shall mean all allowances of compensation and
reimbursement of expenses allowed to Professionals by the Bankruptcy Court
pursuant to Section 330, 331 or 503(b) of the Bankruptcy Code.
 
     1.59  "Professional Fee Reserve" shall mean the reserve to be established
on or prior to the Effective Date respecting the payment of Professional Fee
holdbacks, which reserve shall include an estimated aggregate amount for final
Professional Fee applications.
 
     1.60  "Professionals" shall mean those Persons (i) employed pursuant to an
order of the Bankruptcy Court in accordance with Sections 327 and 1103 of the
Bankruptcy Code and to be compensated for services pursuant to Sections 327,
328, 329, 330 and 331 of the Bankruptcy Code, or (ii) for which compensation and
reimbursement has been allowed by the Bankruptcy Court pursuant to Section
503(b)(4) of the Bankruptcy Code.
 
     1.61  "Record Date" shall mean (a) for the purpose of voting on the Plan,
the date of entry of the order approving the Disclosure Statement respecting the
Plan, and (b) for the purposes of any distribution to holders of Stock Interests
and for the determination of which interests in Common Stock and Preferred Stock
are Allowed Common Stock Interests or Allowed Preferred Stock Interests,
respectively, the Effective Date.
 
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<PAGE>   142
 
     1.62  "Reorganization Cases" shall mean the Debtors' cases pursuant to
Chapter 11 of the Bankruptcy Code administered in the Bankruptcy Court under
case numbers 90 B 21276 through 90 B 21286, 90 B 21334, and 90 B 21335.
 
     1.63  "Reorganized Debtors" shall mean, collectively, the Debtors as
constituted following Confirmation of this Plan.
 
     1.64  "Reorganized Lone Star" shall mean Lone Star Industries, Inc., a
Delaware corporation, after the closing of the transactions contemplated herein
have occurred, including, among other things, the issuance of New Lone Star
Common Stock.
 
     1.65  "Reorganized Lone Star Guarantee" shall mean the guarantee of
Reorganized Lone Star of certain obligations of NewCo under the Asset Proceeds
Notes, pursuant to a guarantee agreement to be executed by Reorganized Lone
Star, to be in the form annexed to the Disclosure Statement as Exhibit "N", with
such deletions, additions, modifications or other revisions as shall be
negotiated between the Debtors and the Official Committee of Unsecured Creditors
to their mutual satisfaction, which guarantee shall be secured by a pledge of
Reorganized Lone Star's right, title and interest in all issued and outstanding
common stock of NewCo pursuant to the Pledge Agreement and which guarantee shall
provide that recourse against Reorganized Lone Star under such guarantee shall
be limited to the Covered Deficiency, and that upon maturity of the Asset
Proceeds Notes (or any extension thereof pursuant to its terms) Reorganized Lone
Star shall, if necessary, either (i) pay to the Asset Proceeds Note Trustee, in
Cash, an amount equal to the Covered Deficiency, and/or (ii) issue promissory
notes, the form of which shall be satisfactory to the Debtors and the Official
Committee of Unsecured Creditors and filed with the Bankruptcy Court on or prior
to Confirmation, in the amount of the Covered Deficiency, which shall mature on
the third anniversary of the issuance thereof, with an interest rate per annum
set at 300 basis points above the then current yield for five-year U.S. Treasury
obligations as of the date of issuance of such deficiency notes.
 
     1.66  "Reorganized Lone Star Warrants" shall mean the warrants to purchase
3,333,333 shares of New Lone Star Common Stock pursuant to the Warrant Agreement
exercisable until December 31, 1998 at a price of $19.75 per share.
 
     1.67  "Reserve" shall mean the entire amount held at any particular time by
the Escrow Agent, as provided by Section 6.8 of this Plan, including the Reserve
Amounts at such time and any interest, dividends or other income earned upon
investment of the Reserve Amounts.
 
     1.68  "Reserve Amount" as of a date shall mean the Cash or Cash and
Securities to be reserved as of such date for a Disputed Claim (or Disputed
Stock Interest) pursuant to Section 6.8 of this Plan.
 
     1.69  "Reserve Expenses" shall mean all fees, charges and expenses required
to be paid by the Reserve as provided by Section 6.8 of this Plan.
 
     1.70  "Reserve Surplus Distribution Date" shall mean the first Business Day
occurring 180 days following the Effective Date and each successive 180 day
period thereafter, provided that (i) such day is a Business Day, and (ii) the
Final Reserve Surplus Distribution Date has not occurred.
 
     1.71  "Retiree Benefits" shall mean payments to any entity or person for
the purpose of providing or reimbursing payments for retired employees of the
Debtors and of certain other entities as to which the Debtors are obligated to
provide retiree benefits (a "Lone Star Retiree") and the eligible spouses and
eligible dependents of such retired employees, for medical, surgical, or
hospital care benefits, or in the event of death of a Lone Star Retiree under
any plan, fund or program (through the purchase of insurance or otherwise)
maintained or established by the Debtors prior to the Filing Date, as such plan,
fund or program was then in effect or as heretofore or hereafter amended.
 
     1.72  "Scheduling Order" shall mean the order of the Bankruptcy Court
scheduling, inter alia, the hearing on Confirmation of the Plan and the Ballot
Date.
 
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<PAGE>   143
 
     1.73  "Securities" shall mean shares of New Lone Star Common Stock, Senior
Notes, Assets Proceeds Notes, Reorganized Lone Star Warrants and any other
security or property, other than Cash, issued or received in respect of
(including in exchange for) an Allowed Claim or a Stock Interest.
 
     1.74  "Senior Note Indenture" shall mean the indenture, pursuant to which
the Senior Notes will be issued, to be in the form annexed as Exhibit "L" to the
Disclosure Statement, with such deletions, additions, modifications or other
revisions as shall be negotiated between the Debtors and the Official Committee
of Unsecured Creditors to their mutual satisfaction, pursuant to which
Reorganized Lone Star will, among other things, establish a mandatory sinking
fund to be used for redemption of the Senior Notes in annual increments of
$10,000,000 in each July of 2000, 2001 and 2002, which partial redemptions may
be satisfied by Reorganized Lone Star's deposit of Senior Notes purchased from
the holders of such notes in an amount equal to such partial redemptions.
 
     1.75  "Senior Note Trustee" shall mean such entity selected by the Debtors
and reasonably acceptable to the Official Committee of Unsecured Creditors who
shall act as indenture trustee under the Senior Note Indenture and who will
maintain the register respecting the Senior Notes.
 
     1.76  "Senior Notes" shall mean the notes of Reorganized Lone Star in the
aggregate principal amount of $75,000,000 in $1,000 increments, issued pursuant
to the Senior Note Indenture, which notes shall bear simple interest at the rate
of 10% per annum payable semi-annually in Cash, and which shall mature on July
31, 2003 and which shall be the subject of a guarantee to be executed by certain
affiliates of Reorganized Lone Star.
 
     1.77  "Stock Interests" shall mean, collectively, Allowed Common Stock
Interests and Allowed Preferred Stock Interests.
 
     1.78  "Stock Option Plans" shall mean the stock option plans to be
established by Reorganized Lone Star, to be in the forms annexed as Exhibit "T"
to the Disclosure Statement, with such deletions, additions, modifications or
other revisions as shall be negotiated between the Debtors and the Official
Committee of Unsecured Creditors to their mutual satisfaction, which,
collectively, shall in no event result in a dilution of the amount of New Lone
Star Common Stock to be issued pursuant to this Plan (including such stock
reserved for issuance on the exercise of the Reorganized Lone Star Warrants) of
greater than six percent (6%).
 
     1.79  "Subsidiary" shall mean any entity of which more than 50% of the
outstanding capital stock entitled to vote for the election of directors is
owned or controlled, directly or indirectly, by a Debtor, by one or more other
Subsidiaries of a Debtor or by a Debtor and one or more of its other
Subsidiaries.
 
     1.80  "Substantive Consolidation Order" shall mean the order, or provision
of the Confirmation Order, substantively consolidating the Debtors' cases as
provided in Article VII of the Plan.
 
     1.81  "Warrant Agreement" shall mean the warrant agreement between
Reorganized Lone Star and the warrant agent named therein, to be in the form
annexed to the Disclosure Statement as Exhibit "S", with such deletions,
additions, modifications or other revisions as shall be negotiated between the
Debtors and the Official Committee of Unsecured Creditors to their mutual
satisfaction, which agreement sets forth the terms and conditions respecting
exercise of the Reorganized Lone Star Warrants.
 
                                   ARTICLE II
 
                     CLASSIFICATION OF CLAIMS AND INTERESTS
 
     2.1  Criterion of Class. A Claim is in a particular Class only to the
extent that the Claim qualifies within the description of that Class and is in a
different Class to the extent that the remainder of the Claim qualifies within
the description of the different Class.
 
     2.2  Allowed Claims and Stock Interests. All Allowed Claims and all Stock
Interests are divided into the following Classes, which Classes shall be
mutually exclusive:
 
          (a) Class 1 (Priority Claims). Class 1 shall consist of all Allowed
     Priority Claims.
 
          (b) Class 2 (Secured Claims). Class 2 shall consist of all Allowed
     Secured Claims.
 
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<PAGE>   144
 
          (c) Class 3 (Convenience Claims). Class 3 shall consist of all Allowed
     Convenience Claims.
 
          (d) Class 4 (Unsecured Claims). Class 4 shall consist of all Allowed
     Unsecured Claims which are not Intercompany Claims, Allowed Convenience
     Claims or Allowed Claims in Class 7 of this Plan. Class 4 Claims are
     classified further into the following subclasses:
 
             (i) Class 4A shall consist of all Allowed 4A Unsecured Claims.
 
             (ii) Class 4B shall consist of all Allowed 4B Unsecured Claims.
 
          (e) Class 5 (Preferred Stock Interests). Class 5 shall consist of all
     Allowed Preferred Stock Interests.
 
          (f) Class 6 (Common Stock Interests). Class 6 shall consist of all
     Allowed Common Stock Interests.
 
          (g) Class 7 (Rescission and Damage Claims Respecting Common Stock).
     Class 7 shall consist of all Claims for rescission of a purchase or sale of
     Common Stock or for damages arising from the purchase or sale of Common
     Stock.
 
          (h) Class 8 (Equity Interests in Subsidiaries). Class 8 shall consist
     of all Allowed Equity Interests in Subsidiaries.
 
          (i) Class 9 (Intercompany Claims). Class 9 shall consist of all
     Intercompany Claims.
 
                                  ARTICLE III
 
                    PAYMENT OF ALLOWED ADMINISTRATIVE CLAIMS
                             AND ALLOWED TAX CLAIMS
 
     3.1  Administrative Claims. All Administrative Claims shall be paid by the
Debtors in full, in Cash, in such amounts as are incurred in the ordinary course
of business by the Debtors, or in such amounts as such Administrative Claims are
allowed by the Bankruptcy Court (a) upon the later of the Effective Date or the
date upon which the Bankruptcy Court enters a Final Order allowing such
Administrative Claim or (b) upon such other terms as may exist due to the
ordinary course of the business of the Debtors or (c) as may be agreed upon
between the holders of such Administrative Claims and the Debtors.
 
     3.2  Tax Claims. Allowed Tax Claims of governmental units entitled to
priority under Section 507(a)(7) of the Bankruptcy Code shall be paid by the
Debtors in full, in Cash, on the Effective Date or upon such other terms as may
be agreed to between the Debtors and any holder of an Allowed Tax Claim;
provided, however, that (i)(a) the Debtors may, at their option, in lieu of
payment in full on the Effective Date of the Allowed Tax Claims, make cash
payments respecting Allowed Tax Claims, deferred to the extent permitted by
Section 1129(a)(9) of the Bankruptcy Code and, in such event, interest shall be
paid on the unpaid portion of such Allowed Tax Claim at the statutory rate or at
a rate to be agreed to by the Debtors and the appropriate governmental unit or,
if they are unable to agree, to be determined by the Bankruptcy Court; and (b)
if such Allowed Tax Claim is for a tax assessed against property of the Estate,
such Claim does not exceed the value of the interest of the Estate in such
property, and (ii) in the event an Allowed Tax Claim may also be classified as
an Allowed Secured Claim, the Debtors may, at their option, elect to treat
Allowed Tax Claims as Secured Claims. All Allowed Tax Claims that by their terms
become due and payable after the Confirmation Date shall be paid when due.
 
     3.3  Professional Fees. All final applications for Professional Fees for
services rendered in connection with the Reorganization Cases and this Plan
prior to the Effective Date shall be filed within sixty (60) Business Days after
the Effective Date. Payments respecting Professional Fee holdbacks and final
Professional Fee applications shall be made from the Professional Fee Reserve
within ten (10) Business Days following the Bankruptcy Court's authorization
thereof. All professional fees for services rendered in connection with the
Reorganization Cases and the Plan after the Effective Date, including those
relating to the resolution of Disputed Claims, shall be paid by the Debtors
without further Bankruptcy Court authorization.
 
                                      A-10
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                                   ARTICLE IV
 
                CLAIMS AND INTERESTS NOT IMPAIRED UNDER THE PLAN
 
     4.1  Non-Impairment. Claims in Class 1, Class 3 and Class 8 are not
impaired under the Plan. In the event of a controversy as to whether any
Claimants, or holders of Stock Interests or holders of Equity Interests in
Subsidiaries are impaired, the Bankruptcy Court shall, after appropriate notice
and hearing, determine such controversy.
 
     4.2  Class 1 (Priority Claims). The Allowed Priority Claims shall be paid
in full, in Cash, as soon as practicable after:
 
          (a) the later of the Effective Date, or the date of a Final Order
     allowing any such Claim in Class 1; or
 
          (b) upon such other terms as may be agreed to between the Debtors and
     any holder of a Class 1 Claim.
 
     4.3  Class 3 (Convenience Claims). On the Effective Date, each holder of an
Allowed Convenience Claim shall receive on account of such Claim a Cash payment
equal to one hundred percent (100%) of its Allowed Convenience Claim.
 
     4.4  Class 8 (Equity Interests in Subsidiaries). On the Effective Date,
record holders of Allowed Equity Interests in Subsidiaries shall continue to
hold such equity interests, which equity interests shall continue to be
evidenced by the capital stock held by such record holders in the Subsidiary or
Subsidiaries as of the Effective Date.
 
                                   ARTICLE V
 
               CLAIMS AND STOCK INTERESTS IMPAIRED UNDER THE PLAN
 
     5.1 Class 2 (Secured Claims).
 
     5.1.1  As to each Allowed Secured Claim, at the Debtors' option (except
with respect to the Allowed Secured Claim of Dr. Richard C. Schaffer which shall
be treated as specified in clause 5.1.2) either:
 
          (a) (i) any default, other than of the kind specified in Section
     365(b)(2) of the Bankruptcy Code, shall be cured, provided that any accrued
     and unpaid interest, if any, which the Debtors may be obligated to pay with
     respect to such default shall be simple interest at the contract rate and
     not at any default rate of interest;
 
            (ii) the maturity of the Claim shall be reinstated as the maturity
        existed before any default;
 
            (iii) the holder of the Claim shall be compensated for any damage
        incurred as a result of any reasonable reliance by the holder on any
        provision that entitled the holder to accelerate maturity of the Claim;
        and
 
            (iv) the other legal, equitable, or contractual rights to which the
        Claim entitles the holder shall not otherwise be altered; provided,
        however, that as to any Allowed Secured Claim which is a nonrecourse
        claim and exceeds the value of the collateral securing the Claim, the
        collateral may be sold at a sale at which the holder of such Claim has
        an opportunity to bid; or
 
          (b) on the Effective Date, or on such other date thereafter as may be
     agreed to by the Debtors and the holder of such Claim, the Debtors shall
     abandon the collateral securing such Claim to the holder thereof in full
     satisfaction and release of such Claim; or
 
          (c) on the Effective Date, the holder of such Claim shall receive, on
     account of such Claim, Cash equal to its Allowed Secured Claim, or such
     lesser amount to which the holder of such Claim shall agree, in full
     satisfaction and release of such Claim; or
 
                                      A-11
<PAGE>   146
 
          (d) the holder of such Claim shall receive, on account of such Claim,
     deferred Cash payments, pursuant to Section 1129(b)(2)(A)(i)(II) of the
     Bankruptcy Code, totalling at least the Allowed Amount of such Claim, of a
     value, as of the Effective Date, of at least the value of such holder's
     interest in the Debtors' interest in such property.
 
     5.1.2  With respect to the Allowed Secured Claim of Dr. Richard C.
Schaffer, on the Effective Date:
 
          (i) the terms of the promissory note and all documents respecting this
     Claim will be reinstated and the legal, equitable or contractual rights to
     which Dr. Schaffer is entitled shall not otherwise be altered;
 
          (ii) all defaults under the promissory note in respect of such Claim
     shall be cured (with any accrued and unpaid interest to be paid through the
     Effective Date at the contract rate (plus $10,000) and not at any default
     or penalty rate); and
 
          (iii) the reasonable legal fees of Dr. Schaffer shall be satisfied by
     Reorganized Lone Star.
 
     5.2  Class 4 (Unsecured Claims). The treatment of Allowed Unsecured Claims
in Class 4 is set forth in Sections 5.2.1 and 5.2.2 of this Plan.
 
     5.2.1  Class 4A. On the Effective Date, each holder of an Allowed 4A
Unsecured Claim shall receive on account of such Claim:
 
          (a) (i) its Pro Rata share of 4.7% of Available Cash (currently
     estimated to be $8,629,000 and subject to increase by 1.8% of the net
     proceeds from disposition of Non-Core Assets consummated prior to
     Confirmation); provided, however, that (A) if Allowed 4A Unsecured Claims
     exceed $22,700,000 in the aggregate, the Cash distributions to Class 4A
     shall be increased in an amount equal to such excess up to $500,000, and
     (B) Available Cash allocated to Disputed Claims will not be distributed,
     but will be held by the Escrow Agent to be distributed in accordance with
     Section 6.8 of this Plan; plus
 
            (ii) its Pro Rata share of $6,471,000 of Senior Notes (subject to
        the provisions set forth in Sections 5.9 and 5.10 of this Plan) issued
        pursuant to the Senior Note Indenture; provided, however, that the
        Senior Notes allocated to Disputed Claims will not be distributed, but
        will be held by the Escrow Agent to be distributed in accordance with
        Section 6.8 of this Plan; plus
 
            (iii) its Pro Rata share of 1.8% of Asset Proceeds Notes (subject to
        the provisions set forth in Sections 5.9 and 5.10 of this Plan) issued
        pursuant to the Asset Proceeds Note Indenture; provided, however, that
        Asset Proceeds Notes allocated to Disputed Claims will not be
        distributed, but will be held by the Escrow Agent to be distributed in
        accordance with Section 6.8 of this Plan; plus
 
            (iv) its Pro Rata share of 321,600 shares of New Lone Star Common
        Stock issued pursuant to the New Lone Star Charter; provided, however;
        that New Lone Star Common Stock allocated to Disputed Claims will not be
        distributed, but will be held by the Escrow Agent to be distributed in
        accordance with Section 6.8 of this Plan. The New Lone Star Common Stock
        issued to holders of Allowed 4A Unsecured Claims pursuant to this
        Section 5.2.1(a)(iv) will represent 2.68% of the outstanding shares of
        New Lone Star Common Stock on the Effective Date; provided further,
        however, that the percentage of New Lone Star Common Stock issued
        pursuant to this Section 5.2.1(a)(iv) is subject to dilution by shares
        of New Lone Star Common Stock issued in accordance with the Stock Option
        Plans, shares of New Lone Star Common Stock issued as a result of the
        exercise of the Reorganized Lone Star Warrants and such other shares as
        may be authorized and issued pursuant to the Reorganized Lone Star
        Charter.
 
          (b) In the event that holders of Allowed Preferred Stock Interests in
     Class 5 do not accept this Plan by the requisite statutory majorities
     provided in Section 1126(c) of the Bankruptcy Code, each holder of an
     Allowed 4A Unsecured Claim shall receive (i) the treatment set forth in
     Section 5.2.1(a) of this Plan; plus (ii) its Pro Rata share of an
     additional .48% of the New Lone Star Common Stock (or 57,600 additional
     shares) which would have otherwise been distributed to holders of Allowed
     Preferred Stock Interests in Class 5 and Allowed Common Stock Interests in
     Class 6 pursuant to Sections 5.3(a) and
 
                                      A-12
<PAGE>   147
 
     5.4(a)(i) of this Plan and the Reorganized Lone Star Warrants shall not be
     issued and the Warrant Agreement shall not become effective.
 
          (c) In the event that holders of Allowed Preferred Stock Interests in
     Class 5 accept this Plan by the requisite statutory majorities contained in
     Section 1126(c) of the Bankruptcy Code, and holders of Allowed Common Stock
     Interests in Class 6 do not accept this Plan by the requisite majorities
     contained in Section 1126(c) of the Bankruptcy Code, each holder of an
     Allowed 4A Unsecured Claim shall receive (i) the treatment set forth in
     Section 5.2.1(a) of this Plan; plus (ii) its Pro Rata share of an
     additional .15% of New Lone Star Common Stock (or 18,000 additional shares)
     issued on the Effective Date, which otherwise would have been issued to
     holders of Stock Interests.
 
     5.2.2  Class 4B. On the Effective Date, each holder of an Allowed 4B
Unsecured Claim shall receive on account of such Claim:
 
          (a) (i) its Pro Rata share of Available Cash remaining after
     distributions of Cash on the Effective Date to holders of Allowed Claims in
     Class 4A pursuant to Section 5.2.1 of this Plan have been completed;
     provided, however, that Available Cash allocated to Disputed Claims will
     not be distributed, but will be held by the Escrow Agent to be distributed
     in accordance with Section 6.8 of this Plan; plus
 
            (ii) its Pro Rata share of $68,529,000 of Senior Notes (subject to
        the provisions set forth in Sections 5.9 and 5.10 of this Plan) issued
        pursuant to the Senior Note Indenture; provided, however, that the
        Senior Notes allocated to Disputed Claims will not be distributed, but
        will be held by the Escrow Agent to be distributed in accordance with
        Section 6.8 of this Plan; plus
 
            (iii) its Pro Rata share of 98.2% of Asset Proceeds Notes (subject
        to the provisions set forth in Sections 5.9 and 5.10 of this Plan)
        issued pursuant to the Asset Proceeds Note Indenture; provided, however,
        that Asset Proceeds Notes allocated to Disputed Claims will not be
        distributed, but will be held by the Escrow Agent to be distributed in
        accordance with Section 6.8 of this Plan; plus
 
            (iv) its Pro Rata share of 9,878,400 shares of the New Lone Star
        Common Stock issued pursuant to the New Lone Star Charter; provided,
        however, that New Lone Star Common Stock allocated to Disputed Claims
        will not be distributed, but will be held by the Escrow Agent to be
        distributed in accordance with Section 6.8 of this Plan. The New Lone
        Star Common Stock issued to holders of Allowed 4B Unsecured Claims
        pursuant to this Section 5.2.2(a)(iv) will represent 82.32% of the
        outstanding shares of New Lone Star Common Stock on the Effective Date;
        provided further, however, that the percentage of New Lone Star Common
        Stock issued pursuant to this Section 5.2.2(a)(iv) is subject to
        dilution by shares of New Lone Star Common Stock issued in accordance
        with the Stock Option Plans, shares of New Lone Star Common Stock issued
        as a result of the exercise of the Reorganized Lone Star Warrants and
        such other shares as may be authorized and issued pursuant to the
        Reorganized Lone Star Charter.
 
          (b) In the event that holders of Allowed Preferred Stock Interests in
     Class 5 do not accept this Plan by the requisite statutory majorities
     provided in Section 1126(c) of the Bankruptcy Code, each holder of an
     Allowed 4B Unsecured Claim shall receive (i) the treatment set forth in
     Section 5.2.2(a) of this Plan; plus (ii) its Pro Rata share of an
     additional 14.52% of the New Lone Star Common Stock (or 1,742,400
     additional shares) which would have otherwise been distributed to holders
     of Allowed Preferred Stock Interests in Class 5 and Allowed Common Stock
     Interests in Class 6 pursuant to Sections 5.3(a) and 5.4(a)(i) of this Plan
     and the Reorganized Lone Star Warrants shall not be issued and the Warrant
     Agreement shall not become effective.
 
          (c) In the event that holders of Allowed Preferred Stock Interests in
     Class 5 accept this Plan by the requisite statutory majorities contained in
     Section 1126(c) of the Bankruptcy Code, and holders of Allowed Common Stock
     Interests in Class 6 do not accept this Plan by the requisite majorities
     contained in Section 1126(c) of the Bankruptcy Code, each holder of an
     Allowed 4B Unsecured Claim shall receive (i) the treatment set forth in
     Section 5.2.2(a) of this Plan; plus (ii) its Pro Rata share of an
     additional 4.6% of New Lone Star Common Stock (or 552,000 additional
     shares) issued on the Effective
 
                                      A-13
<PAGE>   148
 
     Date which otherwise would have been issued to holders of Stock Interests
     plus its Pro Rata share of 2,083,333 Reorganized Lone Star Warrants which
     otherwise would have been issued to holders of Allowed Common Stock
     Interests in Class 6.
 
     5.3  Class 5 (Allowed Preferred Stock Interests).
 
     (a) Treatment in Event Class 5 Accepts the Plan. All Preferred Stock shall
be cancelled, annulled and extinguished as of the Effective Date and each holder
of an Allowed Preferred Stock Interest shall receive, on the later of the
Effective Date and the date of surrender to Reorganized Lone Star for
cancellation of the certificates representing Preferred Stock (or if such
certificates have been stolen, lost, or destroyed, in lieu thereof (i) a lost
security affidavit and (ii) a bond if reasonably required by Reorganized Lone
Star), its Pro Rata share of 1,260,000 shares of New Lone Star Common Stock
issued pursuant to the New Lone Star Charter plus its Pro Rata share of
1,250,000 Reorganized Lone Star Warrants; provided, however, that in the event
that holders of Allowed Common Stock Interests in Class 6 do not accept the
Plan, each holder of an Allowed Preferred Stock Interest shall instead receive
its Pro Rata share of 1,230,000 shares of New Lone Star Common Stock issued
pursuant to the New Lone Star Charter plus its Pro Rata share of 1,250,000
Reorganized Lone Star Warrants. The New Lone Star Common Stock issued to holders
of Allowed Preferred Stock Interests pursuant to this Section 5.3(a) will
represent (i) 10.5% of the outstanding shares of New Lone Star Common Stock on
the Effective Date if holders of Allowed Common Stock Interests in Class 6
accept the Plan by the requisite statutory majorities contained in Section
1126(c) of the Bankruptcy Code, or (ii) 10.25% of the outstanding shares of New
Lone Star Common Stock on the Effective Date if holders of Allowed Common Stock
Interests in Class 6 do not accept the Plan by the requisite statutory
majorities contained in Section 1126(c) of the Bankruptcy Code; provided,
however, that the percentage of New Lone Star Common Stock issued pursuant to
this Section 5.3(a) is subject to dilution by shares of New Lone Star Common
Stock issued in accordance with the Stock Option Plans, shares of New Lone Star
Common Stock issued as a result of the exercise of the Reorganized Lone Star
Warrants and such other shares as may be authorized and issued pursuant to the
Reorganized Lone Star Charter.
 
     (b) Treatment Under Nonconsensual Plan in the Event Class 5 Rejects the
Plan. All Preferred Stock shall be cancelled, annulled and extinguished as of
the Effective Date and each holder of an Allowed Preferred Stock Interest shall
not be entitled to receive or retain any property or interest in property on
account of such Preferred Stock Interest under this Plan and the Reorganized
Lone Star Warrants shall not be issued and the Warrant Agreement shall not
become effective.
 
     (c) Effect of Alternate Treatment for Nonconsensual Confirmation on Holders
of Preferred Stock Interests. In the event that holders of Allowed Preferred
Stock Interests do not accept the Plan by the requisite statutory majorities
provided in Section 1126(c) of the Bankruptcy Code, the treatment provision of
Section 5.3(a) of this Plan relating to such Stock Interests shall be null and
void and of no further force and effect and holders of Allowed Preferred Stock
Interests shall be treated in accordance with Section 5.3(b) of this Plan.
 
    5.4  Class 6 (Allowed Common Stock Interests).
 
     (a) Treatment In Event Class 6 Accepts the Plan.
 
          (i) In the event that holders of Allowed Preferred Stock Interests in
     Class 5 accept, by the requisite statutory majorities provided in Section
     1126(c) of the Bankruptcy Code, the treatment provided such Stock Interests
     in Section 5.3(a) of this Plan, then all Common Stock shall be cancelled,
     annulled and extinguished as of the Effective Date and each holder of an
     Allowed Common Stock Interest shall receive, on the later of the Effective
     Date and the date of surrender to Reorganized Lone Star for cancellation of
     the certificates representing Common Stock (or if such certificates have
     been stolen, lost, or destroyed, in lieu thereof (x) a lost security
     affidavit and (y) a bond if reasonably required by Reorganized Lone Star),
     its Pro Rata share of 540,000 shares of New Lone Star Common Stock issued
     pursuant to the New Lone Star Charter and its Pro Rata share of 2,083,333
     Reorganized Lone Star Warrants. The New Lone Star Common Stock issued to
     holders of Allowed Common Stock Interests pursuant to this Section
     5.4(a)(i) will represent 4.5% of the outstanding shares of New Lone Star
 
                                      A-14
<PAGE>   149
 
     Common Stock on the Effective Date; provided, however, that the percentage
     of New Lone Star Common Stock issued pursuant to this Section 5.4 is
     subject to dilution by shares of New Lone Star Common Stock issued in
     accordance with the Stock Option Plans, shares of New Lone Star Common
     Stock issued as a result of exercise of the Reorganized Lone Star Warrants
     and such other shares as may be authorized and issued pursuant to the
     Reorganized Lone Star Charter; or
 
          (ii) in the event that holders of Allowed Preferred Stock Interests in
     Class 5 do not accept, by the requisite statutory majorities provided in
     Section 1126(c) of the Bankruptcy Code, the treatment provided such Stock
     Interests in Section 5.3(a) of this Plan, then, in accordance with Section
     1129(b)(2)(c) of the Bankruptcy Code, all Common Stock shall be cancelled,
     annulled and extinguished as of the Effective Date and each holder of an
     Allowed Common Stock Interest shall not be entitled to receive or retain
     any property or interest in property on account of such Common Stock
     Interest under this Plan.
 
     (b) Treatment Under Nonconsensual Plan in the Event Class 6 Rejects the
Plan. All Common Stock shall be cancelled, annulled and extinguished as of the
Effective Date and each holder of an Allowed Common Stock Interest shall not be
entitled to receive or retain any property or interest in property on account of
such Common Stock Interest under this Plan.
 
     (c) Effect of Alternate Treatment for Nonconsensual Confirmation on Holders
of Common Stock Interests. In the event that holders of Allowed Common Stock
Interests do not accept the Plan by the requisite statutory majorities provided
in Section 1126(c) of the Bankruptcy Code, the treatment provision of Section
5.4(a) of this Plan relating to such Stock Interests shall be null and void and
of no further force and effect and holders of Allowed Common Stock Interests
shall be treated in accordance with Section 5.4(b) of this Plan.
 
     5.5 Class 7 (Rescission and Damage Claims Respecting Common Stock). Each
holder of an Allowed Unsecured Claim in Class 7 shall retain all proceeds
derived from any litigation instituted by any such holder or on his or their
behalf against any entity other than the Debtors (but not any proceeds from any
of the property or assets of any of the Debtors) but shall receive no
distribution under this Plan from the Debtors or Reorganized Debtors.
 
     5.6 Class 9 (Intercompany Claims). On the Effective Date, all Intercompany
Claims shall be expunged, released and discharged, and holders of such Claims
shall receive no distributions of any kind under this Plan.
 
     5.7 Nonconsensual Confirmation. In the event that any impaired Class of
Claims or Stock Interests shall not accept the Plan in accordance with Section
1129(a) of the Bankruptcy Code, the Debtors reserve the right to (i) request
that the Bankruptcy Court confirm the Plan in accordance with Section 1129(b) of
the Bankruptcy Code, or (ii) amend the Plan in accordance with Section 11.3 of
this Plan.
 
     5.8 Full and Final Satisfaction. All payments and all distributions
hereunder shall be in full and final satisfaction, settlement, release and
discharge of all Claims and Stock Interests.
 
     5.9 Fractional Cents. Whenever any payment of a fraction of a cent would
otherwise be called for, the actual payment shall reflect a rounding of such
fraction to the nearest whole cent (rounding down in the case of .50 or less and
rounding up in the case of more than .50).
 
     5.10 Fractional Distributions; Round Lots. Any other provision of this Plan
notwithstanding, no fractional shares of New Lone Star Common Stock shall be
issued or distributed in connection with the Plan. Whenever the issuance of a
fractional share of New Lone Star Common Stock would otherwise be called for,
the actual issuance shall reflect a rounding down of such fraction to the
nearest whole share if the fraction is .50 or less and a rounding up of such
fraction to the nearest whole share if the fraction is greater than .50. In
addition, Senior Notes and Asset Proceeds Notes shall only be issued in
increments of $1,000. Any other provision of this Plan notwithstanding, no
fractional Senior Notes or Asset Proceeds Notes shall be issued or distributed
in connection with this Plan. Whenever the issuance of a Senior Note or Asset
Proceeds Note in respect of an Allowed Unsecured Claim or a Disputed Claim in
Class 4 in an increment other than $1,000 shall be called for, in lieu of making
a distribution of such fractional amount, a disbursing agent designated by
 
                                      A-15
<PAGE>   150
 
Reorganized Lone Star shall aggregate such fractional notes, and as soon as
practicable after the Effective Date, sell the resulting $1,000 increments of
Senior Notes or Asset Proceeds Notes, as the case may be, for the benefit of
such holders of Allowed Unsecured Claims or Disputed Claims. The net proceeds of
such sales shall be retained by such disbursing agent who, on each Reserve
Surplus Distribution Date or the Final Reserve Surplus Distribution Date, as the
case may be, shall distribute the allocable portion of such net proceeds among
the holders of such Allowed Unsecured Claims or Disputed Claims in Class 4 for
whom the issuance of fractional notes would have otherwise been called for. Such
sales will be effected in open market transactions on the appropriate market or
exchange. All questions as to fractional amounts of Senior Notes or Asset
Proceeds Notes or the method, timing or price of such sales shall be determined
by Reorganized Lone Star in its sole discretion.
 
     5.11  Blank Ballots. Any Ballot which is executed by the holder of an
Allowed Claim or Stock Interest but which does not indicate an acceptance or
rejection of the Plan shall be deemed to be an acceptance of the Plan, provided
that the Ballot so states in boldface type and provided further that the
Bankruptcy Court shall have approved the foregoing by appropriate Order.
 
     5.12  Allocation of Distributions to Holders of Allowed Claims. All
payments made hereunder to a holder of an Allowed Claim with respect to which
there was accrued but unpaid interest as of the Filing Date shall be allocated
first to the principal amount of the Allowed Claim and then to such accrued but
unpaid interest to the extent that the amount of the payments made under the
Plan to such a holder exceeds the principal amount of such Claim.
 
                                   ARTICLE VI
 
                               MEANS OF EXECUTION
 
     In addition to the provisions set forth elsewhere in this Plan regarding
the means of execution, the following shall constitute the means of execution of
the Plan.
 
     6.1  Asset Dispositions. The funds utilized to make the Cash payments
hereunder have been and will continue to be generated by, among other things,
the Debtors' operation of their businesses and asset dispositions.
 
     6.2  Transfer of Assets to NewCo. In accordance with Section 1123(a)(5)(B)
of the Bankruptcy Code, on the Effective Date, the Debtors shall convey,
contribute, and transfer all of the Non-Core Assets (including liabilities
associated therewith) to NewCo free and clear of all Claims subject only to
valid and perfected existing liens. On the Effective Date, the Debtors shall
also transfer $5,000,000 in Cash to NewCo.
 
     6.3  New Lone Star Charter. On the Effective Date, the New Lone Star
Charter will become effective. The New Lone Star Charter, together with the
provisions of this Plan, shall provide for, among other things, the
authorization and issuance of New Lone Star Common Stock, and such other
provisions that are necessary to facilitate consummation of the Plan including a
provision prohibiting the issuance of nonvoting equity securities in accordance
with Section 1123(a)(6) of the Bankruptcy Code.
 
     6.4  NewCo Charter. On the Effective Date, the NewCo Charter will become
effective. The NewCo Charter, together with the provisions of this Plan, shall
provide for, among other things, such provisions that are necessary to
facilitate consummation of the Plan including a provision prohibiting the
issuance of nonvoting equity securities in accordance with Section 1123(a)(6) of
the Bankruptcy Code.
 
     6.5  Issuance of New Securities. Reorganized Lone Star shall authorize the
issuance, in accordance with the terms of this Plan, of approximately 12,000,000
shares of New Lone Star Common Stock and approximately 3,333,333 Reorganized
Lone Star Warrants. On the Effective Date, the Debtors will transmit written
instructions regarding the surrender of Common Stock and Preferred Stock and the
distribution of shares of New Lone Star Common Stock to those parties entitled
to receive such stock pursuant to this Plan. Lone Star will make an application,
and will use its best efforts, to list the New Lone Star Common Stock on the New
York Stock Exchange.
 
                                      A-16
<PAGE>   151
 
     6.6  Voting Powers. The Certificate of Incorporation of Reorganized Lone
Star will provide that the holders of such of the New Lone Star Common Stock as
may, from time to time, be issued and outstanding, may elect, using
noncumulative voting, all directors of Reorganized Lone Star.
 
     6.7  Disbursement of Funds and Delivery of Securities. The Debtors, or such
Person designated by the Debtors and approved by the Bankruptcy Court, shall
make the Cash payments and distribution of the Securities to the holders of
Allowed Claims to the extent provided for in the Plan on the Effective Date, or
the date of subsequent allowance of a Disputed Claim, by check sent by
first-class mail (or by other equivalent or superior means as determined by the
Debtors). On the Effective Date, the Debtors shall deposit sufficient Cash in
the Professional Fee Reserve, and sufficient Cash into an interest bearing
escrow account to make distributions to holders of Allowed Unsecured Claims
required by this Plan. Distributions of Cash and Securities pursuant to this
Plan shall be effectuated when the Debtors receive all applicable documentation
requested of holders of Allowed Claims and Stock Interests; provided, however,
that Cash distributions to Claimants shall include interest (net of reasonable
fees and expenses of the Escrow Agent) accrued from the Effective Date; provided
further, however, that any holder of an Allowed Claim as of the Effective Date
in an amount in excess of $2,500,000 shall have the option, exercisable by
written notice executed by such holder and providing appropriate instructions
delivered to the Debtors, or such person designated by the Debtors, on or prior
to the Confirmation Date to receive payment of the Cash portion of the
distributions to be made on the Effective Date on account of such Allowed Claim,
by wire transfer.
 
     6.8  Reserve Provisions for Disputed Claims.
 
     (a) Cash, or with respect to Disputed Claims in Class 4 Cash and
Securities, respecting Disputed Claims pending on the Effective Date shall not
be distributed, but, if necessary, shall be deposited by the Debtors with the
Escrow Agent on the Effective Date in the full amount of all Disputed Claims;
provided, however, that if a holder of a Contingent or unliquidated Claim is not
receiving a distribution under this Plan and such Contingent or unliquidated
Claim is not being discharged by this Plan or is assumed by a Reorganized
Debtor, the Debtors shall not be required to reserve any Cash or Securities with
respect thereto.
 
     (b) For the purposes of effectuating the provisions of this Section 6.8 and
the distributions to holders of Allowed Claims, the Bankruptcy Court, on or
prior to the Effective Date or such date or dates thereafter as the Bankruptcy
Court shall set, may fix or liquidate the amount of Disputed Claims pursuant to
Section 502(c) of the Bankruptcy Code, in which event the amounts so fixed or
liquidated shall be deemed the amounts of the Disputed Claims pursuant to
Section 502(c) of the Bankruptcy Code for purposes of distribution under this
Plan. In lieu of fixing or liquidating the amount of any Disputed Claim, the
Bankruptcy Court may determine the amount to be reserved for such Disputed
Claim, or such amount may be fixed by agreement in writing by and between the
Debtors and the holder thereof.
 
     (c) When a Disputed Claim becomes an Allowed Claim, there shall be
distributed to such Allowed Claim, in accordance with the provisions of this
Plan, Cash and/or Securities, equal to the amount of such Allowed Claim plus any
Net Income earned thereon since the Effective Date.
 
     (d) No holder of a Disputed Claim shall have any Claim against the Cash and
Securities reserved with respect to such Claim until such Disputed Claim shall
become an Allowed Claim. In no event shall any holder of any Disputed Claim or
unliquidated Claim be entitled to receive (under the Plan or otherwise) from the
Debtors or the Reserve, any payment (in Cash, Securities or other property)
which is greater than the amount reserved for such Claim pursuant to this
Section 6.8 plus any Net Income earned thereon since the Effective Date. In no
event shall the Debtors or Reorganized Debtors have any responsibility or
liability for any loss to or of any amount reserved under the Plan.
 
     (e) To the extent a Disputed Claim ultimately becomes an Allowed Claim in
an amount less than the amount reserved for such Disputed Claim, then the
resulting surplus of Cash and Securities (together with any Net Income thereon)
shall be retained in the Reserve and shall be distributed on each Reserve
Surplus Distribution Date or the Final Reserve Surplus Distribution Date, as the
case may be, Pro Rata among holders of Allowed Unsecured Claims and Disputed
Claims in Class 4; provided, however, that (a) except for the Final Reserve
Surplus Distribution Date, no distribution shall be made on a Reserve Surplus
Distribution
 
                                      A-17
<PAGE>   152
 
Date unless, on such date, the aggregate amount, determined as of the Effective
Date, of Cash and Securities to be distributed from the Reserve is at least
$1,000,000, and (b) upon termination of the Reserve, any such surplus remaining
after satisfaction of all Allowed Unsecured Claims shall revert to, and be
retained by, Reorganized Lone Star.
 
     6.9  Disputed Payments. In the event of any dispute between and among
Claimants and/or the holders of a Disputed Claim as to the right of any Person
to receive or retain any payment or distribution to be made to such Person under
the Plan, the Escrow Agent may, in lieu of making such payment or distribution
to such Person, instead hold such payment or distribution until the disposition
thereof shall be determined by the Bankruptcy Court.
 
     6.10  Unclaimed Property. Any Person who fails to claim any Cash or
Securities within three years from the Effective Date or from such other date as
a Claim becomes an Allowed Claim shall forfeit all rights to any distribution
under the Plan. Upon forfeiture, such Cash and/or Securities (including interest
thereon) shall be deposited into the Reserve to be distributed to holders of
Allowed Claims in the same manner described in Section 6.8(e) for distribution
of excess Reserve Amounts. Persons who fail to claim Cash and/or Securities
forfeit their rights thereto and shall have no claim whatsoever against the
Debtors or Reorganized Lone Star or any holder of an Allowed Claim to whom
distributions are made or the Escrow Agent.
 
     6.11  Set-Offs. Nothing contained in this Plan shall constitute a waiver or
release by the Debtors of any right of set-off the Debtors may have against any
Claimant.
 
     6.12  Withholding Taxes. The Debtors shall be entitled to deduct any
federal, state or local withholding taxes from any payments made with respect to
Allowed Claims, as appropriate.
 
     6.13  Revesting. Except as otherwise provided by the Plan, upon the
Effective Date, title to all properties and assets dealt with by the Plan shall
pass to the Debtors free and clear of all Claims and interests, including liens
or other encumbrances, of creditors and of equity security holders and the
Confirmation Order shall be a judicial determination of discharge of all of the
Debtors' liabilities except as provided in the Plan.
 
     6.14  Discharge. Except as otherwise expressly provided in Section 1141 of
the Bankruptcy Code or the Plan, the distributions made pursuant to the Plan
will be in full and final satisfaction, settlement, release and discharge as
against the Debtors, of any debt that arose before the Confirmation Date and any
debt of a kind specified in Section 502(g), 502(h) or 502(i) of the Bankruptcy
Code and all Claims and interests of any nature, including, without limitation,
any interest accrued thereon from and after the Filing Date, whether or not (i)
a proof of Claim or interest based on such debt, obligation or interest is filed
or deemed filed under Section 501 of the Bankruptcy Code, (ii) such Claim or
interest is allowed under Section 502 of the Bankruptcy Code or (iii) the holder
of such Allowed Claim or interest has accepted the Plan. Therefore, upon the
Effective Date, all Claimants holding Claims against the Debtors, including,
without limitation, non-Debtor affiliates of the Debtors, and holders of
interests of the Debtors shall be precluded from asserting against the Debtors,
or any of their assets or properties, any other or further Claims or interests
based upon any act or omission, transaction or other activity of any kind or
nature that occurred prior to the Effective Date, and the Confirmation Order
shall permanently enjoin said Claimants and holders of equity interests, their
successors and assigns, from enforcing or seeking to enforce any such Claims or
equity interests.
 
     6.15  Releases. On the Effective Date, in consideration for past and future
services, and other valuable consideration, all of the Debtors' present and
former officers, directors, agents, employees, Professionals and counsel, and
the Committees, and their respective members, agents, Professionals, and counsel
(collectively, the "Released Parties") shall be deemed discharged and released
from any and all claims asserted or assertable by any Person arising in any way
out of such Person's relationship with or work performed for the Debtors on or
prior to the Effective Date; provided, however, that (i) the foregoing discharge
and release shall only apply to those claims for which the Released Parties are
entitled to indemnification by the Debtors pursuant to applicable laws or as
provided in any of (a) Lone Star's Restated Certificate of Incorporation in
effect prior to or as of the date hereof, (b) Lone Star's by-laws in effect
prior to or as of the date hereof, (c) any agreement with Lone Star, or (d) the
certificates of incorporation, by-laws or similar documents or agreements of any
of Lone Star's subsidiaries as in effect prior to or as of the date hereof, in
each case with
 
                                      A-18
<PAGE>   153
 
respect to matters occurring on or prior to the Effective Date, and (ii) the
foregoing discharge and release shall not apply to (a) any individuals or
entities which have been released prior to the Effective Date by order of the
Bankruptcy Court and as to such individuals or entities, the terms of their
respective releases shall govern, (b) any individuals or entities which are the
subject of a proceeding to recover property or money commenced by the Debtors
prior to the Effective Date, or (c) any claims asserted or assertable by or
against any of the Debtors' present or former officers or directors in the
following litigations pending in the United States District Court for the
District of Connecticut: (1) Cohn v. Lone Star Industries, Inc., et al., Civ.
No. B-89-617 (JAC), and (2) Garbarino, et ano. v. Stewart, et al., Civ. No.
B-90-631 (JAC).
 
     6.16  Effect of Unsecured Claim Reduction Election. By voting to accept the
Plan and marking the Ballot in the space provided for electing such treatment,
in accordance with Section 4.3 of this Plan, the holder of an Allowed Unsecured
Claim in excess of $5,000 may elect to reduce the amount of such holder's
Allowed Claim to $5,000 and only receive treatment as an Allowed Convenience
Claim having a value of $5,000 on the terms provided in Section 4.3 of this
Plan. Such an election constitutes a waiver of the amount of the Allowed
Unsecured Claim in excess of $5,000, and the holder of such Allowed Claim shall
be deemed to release the Debtors and Reorganized Debtors from any and all
liability for such excess amount.
 
     6.17  Issuance of Cash or Securities to Indenture Trustee or Fiscal Agent.
Any Cash or Securities which are issuable to any holders of Unsecured Claims
arising under any indenture trust agreement or fiscal agency agreement may be
issued to the respective indenture trustee or fiscal agent thereunder for the
benefit of such holders.
 
     6.18  Carrying Out of Terms. Pursuant to Section 303 of the Delaware
General Corporation Law, all terms of this Plan may be put into effect and
carried out, without further action by the directors or shareholders of Lone
Star or Reorganized Lone Star, who shall be deemed to have unanimously approved
the Plan and all agreements and transactions provided for or contemplated
herein.
 
     6.19  Extinguishment of Liens. Upon full satisfaction of an Allowed Secured
Claim pursuant to Section 5.1 of this Plan, all liens respecting such Claim
shall be deemed extinguished and of no further force and effect.
 
     6.20  Registration Rights. As soon as practicable following the Effective
Date, Reorganized Lone Star and appropriate holders of New Lone Star Common
Stock shall enter into an appropriate registration rights agreement, the form of
which shall be filed with the Bankruptcy Court on or prior to Confirmation.
 
                                  ARTICLE VII
 
                           SUBSTANTIVE CONSOLIDATION
 
     7.1  Substantive Consolidation. Except as expressly provided in the Plan,
the Debtors shall continue to maintain their separate corporate existences for
all purposes other than the treatment of Claims under the Plan. Pursuant to the
Substantive Consolidation Order, on the Effective Date: (i) all Intercompany
Claims by and among the Debtors and/or their non-Debtor affiliates will be
eliminated; (ii) except as otherwise provided in the Plan all assets and all
proceeds thereof and all liabilities of the Debtors will be merged or treated as
though they were merged; (iii) any obligation of any Debtor and all guarantees
thereof executed by, or joint liability of, any of the Debtors will be deemed to
be one obligation of the consolidated Debtors; (iv) any Claims filed or to be
filed in connection with any such obligation guaranteed, or joint liability,
will be deemed one Claim against the consolidated Debtors; (v) each and every
Claim filed in the individual case of any of the Debtors will be deemed filed
against the consolidated Debtors in the consolidated case; and (vi) for purposes
of determining the availability of the right of set-off under Section 553 of the
Bankruptcy Code, the Debtors shall be treated as one entity so that, subject to
the other provisions of Section 553 of the Bankruptcy Code, debts due to any of
the Debtors may be set off against the debts of any of the Debtors.
 
     7.2  Extinguishment of Guarantees. On the Confirmation Date, and in
accordance with the terms of the Plan and the Substantive Consolidation Order,
all Claims based upon guarantees of collection, payment or
 
                                      A-19
<PAGE>   154
 
performance, or joint liability of one or more Debtors, as to the obligations of
any other Debtor, shall be discharged, released and of no further force and
effect.
 
                                  ARTICLE VIII
 
                  EXECUTORY CONTRACTS, INDEMNIFICATION CLAIMS
                              AND RETIREE BENEFITS
 
     8.1  Executory Contracts and Unexpired Leases.
 
     (a) Except for those executory contracts and unexpired leases described in
Section 8.1(b) hereof, any and all executory contracts and unexpired leases of
the Debtors not expressly rejected and disaffirmed prior to the Confirmation
Date, or that are not at the Confirmation Date the subject of pending
applications to reject and disaffirm, shall be deemed assumed by the Debtors;
provided, however, that the filing of the Confirmation Order shall be deemed to
be a rejection of all then outstanding unexercised stock options. In accordance
with Section 1123(a)(5)(G) of the Bankruptcy Code, on the Effective Date, or as
soon as practicable thereafter, the Debtors shall cure all defaults under any
executory contract or unexpired lease assumed pursuant to this Section 8.1(a) by
(i) making a Cash payment of only those amounts set forth in proofs of claim or
where no such claim has been filed, as determined by the Debtors without
objection by the Official Committee of Unsecured Creditors, or (ii) on such
terms as agreed to in writing between the Debtors and such claimants, but in
neither event greater than the amounts set forth on Exhibit "O" to the
Disclosure Statement; unless an objection is filed with the Bankruptcy Court and
served on counsel to the Debtors and counsel to the Committees on or prior to
the date set by the Bankruptcy Court for filing objections to Confirmation of
this Plan and the Court after notice and hearing determines that Debtors are
obligated to pay a different amount as cure under Section 365 of the Bankruptcy
Code.
 
     (b) All executory contracts (including, without limitation, partnership
agreements) and unexpired leases set forth on Exhibit "A" to this Plan, which
represent all of those executory contracts and unexpired leases which are
necessary or desirable for the ownership and operation of the Non-Core Assets
which are to be transferred to NewCo pursuant to this Plan, together with any
additions, deletions, modifications or other revisions to such Exhibit as may be
reasonably requested by the Official Committee of Unsecured Creditors, shall, as
of the Effective Date, be deemed assumed by the Debtors and assigned by the
Debtors to NewCo pursuant to Sections 365 and 1123 of the Bankruptcy Code. In
accordance with Section 1123(a)(5)(G) of the Bankruptcy Code, on the Effective
Date or as soon as practicable thereafter, the Debtors shall cure all defaults,
if any, under any executory contract or lease assumed pursuant to this Section
8.1(b) by (i) making a Cash payment of only those amounts set forth in proofs of
claim or where no such claim has been filed, as determined by the Debtors
without objection by the Official Committee of Unsecured Creditors, or (ii) on
such terms as agreed to in writing between the Debtors and such claimants, but
in neither event greater than the amounts set forth on Exhibit "O" to the
Disclosure Statement; unless an objection is filed with the Bankruptcy Court and
served on counsel to the Debtors and counsel to the Committees on or prior to
the date set by the Bankruptcy Court and served on counsel to the Debtors and
counsel to the Committees on or prior to the date set by the Bankruptcy Court
for filing objections to Confirmation of this Plan and the Court after notice
and hearing determines that the Debtors are obligated to pay a different amount
as cure under Section 365 of the Bankruptcy Code.
 
     8.2  Indemnification and Contribution Obligations.
 
     (a) Reorganized Debtors shall assume, to the extent such obligations have
not been rejected prior to Confirmation, all obligations relating to
indemnification and exculpation of Lone Star, and its subsidiaries and
affiliates, respective present or former directors, officers, employees,
fiduciaries, agents or controlling persons as arise under applicable laws or as
provided in any of (i) Lone Star's Restated Certificate of Incorporation in
effect prior to or as of the date hereof, (ii) Lone Star's by-laws in effect
prior to or as of the date hereof, (iii) any agreement with Lone Star or (iv)
the certificates of incorporation, by-laws or similar documents or agreements of
any of Lone Star's subsidiaries as in effect prior to or as of the date hereof,
in each case with respect to matters occurring on or prior to the Effective
Date.
 
                                      A-20
<PAGE>   155
 
     (b) On the Effective Date, all claims of present or former officers,
directors and employees against the Debtors for contribution as may arise under
applicable laws or agreements, in any case in connection with matters occurring
on or prior to the Effective Date, shall be discharged and no distributions
under this Plan shall be made on account thereof.
 
     8.3  Retiree Benefits. Payment of all Retiree Benefits shall continue, at
the level established or modified pursuant to 11 U.S.C. sec. 1114(e)(i)(B) or
(g), solely to the extent, and for the period, the Debtors are contractually or
legally obligated to provide such benefits.
 
                                   ARTICLE IX
 
                            CONDITIONS PRECEDENT TO
                           EFFECTIVENESS OF THE PLAN
 
     9.1  The aggregate amount of Allowed Administrative Claims (other than
those arising in the ordinary course of business and Professional Fees), Allowed
Tax Claims and Allowed Priority Claims shall not exceed $8,000,000 (exclusive of
amounts required to cure defaults in executory contracts or unexpired leases to
be assumed pursuant to this Plan).
 
     9.2  The aggregate amount of Allowed Secured Claims shall not exceed
$4,000,000.
 
     9.3  The aggregate amount of Allowed Unsecured Claims and the amounts to be
reserved for Disputed Claims shall not exceed $577,000,000, of which the
aggregate amount of Allowed 4A Unsecured Claims shall not exceed $23,200,000.
 
     9.4  On the Effective Date, the Debtors shall have no less than
$238,172,000 in Cash.
 
     9.5  The Substantive Consolidation Order shall contain substantially the
provisions set forth in Section 7.1 of this Plan.
 
     9.6  Final Orders, in form and substance reasonably satisfactory to the
Official Committee of Unsecured Creditors, shall be entered with respect to (i)
the treatment of Claims in respect of Retiree Benefits (including modifications
of plans or contracts pursuant to Section 1114 of the Bankruptcy Code) as set
forth in the settlement respecting such Retiree Benefits described in Section
III(G)(3)(c) of the Disclosure Statement; provided, however, that solely with
respect to the matter referred to in this clause (i), any Final Order shall also
be in form and substance reasonably satisfactory to the Official Committee of
Retired Employees, (ii) treatment of all claims of (a) the Pension Benefit
Guaranty Corporation, and (b) the United States Environmental Protection Agency,
and (iii) treatment of all Claims and obligations arising under, in connection
with or related to an Amended and Restated Conveyance of Production Payment
Agreement dated as of September 1, 1988, by and between Lone Star and John
Fouhey, as trustee for Selleck Hill Trust; provided, however, that solely with
respect to the matters referred to in this clause (iii), any Final Order shall
also be in form and substance reasonably satisfactory to the lenders under the
Amended and Restated Term Loan Agreement dated as of September 1, 1988 among
John Fouhey as Trustee for Selleck Hill Trust, the lenders thereunder and Morgan
Guaranty Trust Company of New York, as Agent.
 
     9.7  All documents contemplated to be executed or implemented in connection
with this Plan including, without limitation, exhibits G, H, I, L, M, N, P, Q,
R, S and T annexed to the Disclosure Statement, shall be in a form reasonably
satisfactory to the Official Committee of Unsecured Creditors.
 
     9.8  The Debtors expressly reserve the right to waive any of the conditions
set forth in Article IX of this Plan, except that no such condition may be
waived without the consent of the Official Committee of Unsecured Creditors and,
solely with respect to clause (iii) of Section 9.6 of this Plan, the lenders
under the Amended and Restated Term Loan Agreement dated as of September 1, 1988
among John Fouhey, as Trustee for Selleck Hill Trust, the lenders thereunder and
Morgan Guaranty Trust Company of New York, as Agent.
 
                                      A-21
<PAGE>   156
 
                                   ARTICLE X
 
                           RETENTION OF JURISDICTION
 
     10.1  From and after the Confirmation Date and until such time as all
payments and distributions required to be made and all other obligations
required to be performed under the Plan have been made and performed by the
Debtors or Reorganized Debtors, the Bankruptcy Court shall retain such
jurisdiction as is legally permissible, including, but not limited to, the
following purposes:
 
          (a) To hear and determine any and all objections to the allowance of a
     Claim or Stock Interest or any controversy as to the classification of
     Claims or Stock Interests or the Reserve, provided that only the Debtors
     and the Official Committee of Unsecured Creditors may file objections to
     Claims;
 
          (b) To hear and determine any and all applications by Professionals
     for compensation and reimbursement of expenses;
 
          (c) To hear and determine any and all pending applications for the
     rejection and disaffirmance of executory contracts and unexpired leases and
     fix and allow any Claims resulting therefrom;
 
          (d) To enable the Debtors, NewCo or any party acting on behalf of
     NewCo to prosecute any and all proceedings which have been or may be
     brought prior to the Effective Date to set aside liens or encumbrances and
     to recover any transfers, assets, properties or damages to which the
     Debtors (or NewCo) may be entitled under applicable provisions of the
     Bankruptcy Code or any other federal, state or local laws except as may be
     waived pursuant to the Plan;
 
          (e) To liquidate any disputed, contingent or unliquidated Claims or
     interests;
 
          (f) To enforce the provisions of the Plan and the injunction and
     releases provided for in Sections 6.14 and 6.15 of this Plan;
 
          (g) To correct any defect, cure any omission, or reconcile any
     inconsistency in the Plan or in the Confirmation Order as may be necessary
     to carry out its purpose and the intent of the Plan;
 
          (h) To hear and determine any and all pending actions pursuant to
     Section 544, 547, 548 and 550 of the Bankruptcy Code to set aside and
     recover (if applicable) any transfers determined to be preferential or
     fraudulent;
 
          (i) To determine any Tax Claim which the Estates may incur as a result
     of the transactions contemplated herein; and
 
          (j) To determine such other matters as may be provided for in the
     Confirmation Order confirming the Plan or as may be authorized under the
     provisions of the Bankruptcy Code.
 
                                   ARTICLE XI
 
                                 MISCELLANEOUS
 
     11.1  Termination of Committees. Each Committee shall dissolve and all
powers of each such committee shall terminate as follows: (a) with respect to
the Official Committee of Equity Security Holders, on the Confirmation Date
(except with respect to motions pending as of such date); (b) with respect to
the Official Committee of Retired Employees, on the later of (i) the Effective
Date, or (ii) the date an order of the Bankruptcy Court respecting the treatment
of those Retiree Benefits of persons represented by such committee becomes a
Final Order; and (c) with respect to the Official Committee of Unsecured
Creditors, on the Final Reserve Surplus Distribution Date.
 
     11.2  Headings. Headings are utilized in this Plan for the convenience of
reference only, and shall not constitute a part of this Plan for any other
purpose.
 
     11.3  Defects, Omissions and Amendments. The Debtors may, with the approval
of the Bankruptcy Court and without notice to all holders of Claims and Stock
Interests, but after notice to the Committees,
 
                                      A-22
<PAGE>   157
 
insofar as it does not materially and adversely affect the interest of holders
of Claims and Stock Interests, correct any defect, omission or inconsistency in
the Plan in such manner and to such extent as may be necessary to expedite the
execution of the Plan. The Plan may be altered or amended before or after
Confirmation as provided in Section 1127 of the Bankruptcy Code if, in the
opinion of the Bankruptcy Court, the modification does not materially and
adversely affect the interests of holders of Claims and Stock Interests. The
Plan may be altered or amended before or after the Confirmation Date in a manner
which, in the opinion of the Bankruptcy Court, materially and adversely affects
holders of Claims and Stock Interests, after a further hearing and acceptance of
the Plan as so altered or modified as provided in Section 1126 of the Bankruptcy
Code.
 
     11.4  Governing Law. Except to the extent that the Bankruptcy Code is
applicable, the rights and obligations arising under the Plan shall be governed
by and construed and enforced in accordance with the internal laws of the State
of New York.
 
     11.5  Notices. All notices, requests or demands for payments provided for
in the Plan shall be in writing and shall be deemed to have been given when
personally delivered by hand or deposited in any general or branch post office
of the United States Postal Service or received by telex or telecopier. Notices,
requests and demands for payments shall be addressed and sent, postage prepaid
or delivered, in the case of notices, requests or demands for payments to: Lone
Star Industries, Inc., 300 First Stamford Place, P.O. Box 120014, Stamford,
Connecticut 06912-0014, Attn: John J. Martin, Esq., with a copy to Proskauer
Rose Goetz & Mendelsohn, 1585 Broadway, New York, New York 10036, Attn: Alan B.
Hyman, Esq., and or at any other address designated by Debtors by notice to each
holder of an Allowed Claim or Stock Interest, and, in the case of notices to
holders of Allowed Claims and Stock Interests, at the last known address
according to the Debtors' books and records or at any other address designated
by a holder of an Allowed Claim on its proof of claim or filed with the
Bankruptcy Court, provided that any notice of change of address shall be
effective only upon receipt.
 
     11.6  Severability. Should any provision in the Plan be determined to be
unenforceable, such determination shall in no way limit or affect the
enforceability and operative effect of any or all other provisions of the Plan.
 
     11.7  Revocation and Withdrawal. The Debtors reserve the right to revoke
and withdraw the Plan at any time on or before the Confirmation Date.
 
     11.8  Effect of Withdrawal or Revocation. If the Debtors revoke or withdraw
the Plan pursuant to Section 11.7 above, or if Confirmation or the Effective
Date does not occur, then the Plan shall be deemed null and void, and in such
event nothing contained herein shall be deemed to constitute a waiver or release
of any Claims or interests by or against the Debtors or any other Person or to
prejudice in any manner the rights of the Debtors or any Person in any further
proceedings involving the Debtors.
 
     11.9  Confirmation Order. The Confirmation Order shall ratify all
transactions effected by the Debtors and the successors to the Debtors during
the period commencing on the Filing Date and ending on the Confirmation Date
including, without limitation, (i) the settlement agreement dated as of December
12, 1991, as amended, among Lone Star, The Mitsubishi Bank Limited and Credit
Commercial de France, and (ii) the settlement agreement dated as of September
30, 1992, by and among Lone Star, Lone Star Transportation Corp., San-Vel
Concrete Corporation and National Railroad Passenger Corporation, including,
without limitation, the terms and provisions of paragraph 1(c) thereof
respecting the establishment and placement of certain funds into escrow and all
terms and provisions related thereto; provided, however, that National Railroad
Passenger Corporation's election to escrow a portion of its distribution as
provided in such settlement agreement shall be exercised on or prior to the
Effective Date.
 
                                      A-23
<PAGE>   158
 
     11.10  Implementation. Each of the above parties shall take all steps, and
execute all documents, including appropriate releases, necessary to effectuate
the provisions contained in this Plan.
 
Dated:  New York, New York
        November 4, 1993
 
<TABLE>
<S>                                    <C>
                                       LONE STAR INDUSTRIES, INC., ET AL.
                                       Debtors and Debtors-in-Possession
                                       By: /s/ DAVID W. WALLACE
                                           David W. Wallace,
                                           Chairman and Chief Executive Officer
                                                
PROSKAUER ROSE GOETZ & MENDELSOHN        
Counsel to the Debtors and
Debtors-in-Possession
By: /s/ ALAN B. HYMAN
    Alan B. Hyman (AH 6655)
    A Member of the Firm
    1585 Broadway
    New York, New York 10036
    (212) 969-3000
</TABLE>
 
                                      A-24
<PAGE>   159
 
                                   EXHIBIT A
                           TO PLAN OF REORGANIZATION
<PAGE>   160
 
                                   EXHIBIT A
 
               EXECUTORY CONTRACTS BEING ASSUMED AND ASSIGNED TO NEWCO
 
1. Shareholders Agreement, dated March 21, 1979, among Lafarge, Sofimo, and Lone
   Star Industries, Inc.
 
2. Organization Agreement, dated March 21, 1979, among Lafarge, Sofimo and Lone
   Star Industries, Inc.
 
3. Amended and Restated Partnership Agreement, dated as of March 16, 1992, among
   KCOR CORPORATION, Lone Star Hawaii Cement Corporation, and Adelaide Brighton
   Cement (Hawaii), Inc.
 
4. Lease and Sublease, dated December 31, 1987, between Lone Star Industries,
   Inc. and Lone Star California.
 
5. Amended and Restated Partnership Agreement, dated December 31, 1987, among
   Lone Star California, Inc., New York Trap Rock Corporation and California
   Readymix, Inc.
 
6. Amended and Restated Partnership Agreement, dated June 15, 1992, between Lone
   Star Industries, Inc., Falcon Investments, Inc. and InterRedec, Inc.
 
7. Agreement to Lease Terminal Facilities and Option Agreement, dated as of
   October 20, 1989 (as amended) betwen Gulf Coast Portland Cement and Lone
   Star-Falcon
 
                                      AA-1
<PAGE>   161
 
                                   EXHIBIT B
<PAGE>   162
 
                                                                       EXHIBIT B
 
                   OFFICIAL COMMITTEE OF UNSECURED CREDITORS
 
<TABLE>
<CAPTION>
                 INSTITUTIONS                             INDIVIDUALS
- ----------------------------------------------    ----------------------------
<S>                                               <C>
Credit Commercial De France                       Sandra C. Lefkovits
                                                  Gabor J. Csordas
                                                  Stuart Fraser
Credit Suisse                                     Jan Kofol
Equitable Capital Management Corporation          Rebecca C. Carey
                                                  David Martin, Esq.
Great Lakes Towing & Transport Company            William R. Cunnius
                                                  Jacalyn F. Becker
H.O. Penn Machinery Co., Inc.                     John Murphy
Massachusetts Mutual Life Insurance Company       Michael L. Klofas, CFA, CPA
                                                  Steven J. Katz, Esq.
Metropolitan Life Insurance Company               Lawrence P. Galie
                                                  Jacqueline Jenkins
                                                  Marcus N. Lamb, Esq.
The Mitsubishi Bank, Limited                      Harvey L. Peckins
                                                  Theodore C. Noneman
Mutual Benefit Life                               John H. DeMallie
                                                  David Riley, Esq.
Ohio National Life                                Michael Boedaker
Principal Mutual Life                             John D. Cleavenger, Esq.
                                                  Jody Lambuth
Provident Life & Accident Insurance Company       James T. Rogers
                                                  Richard J. MacLean, Esq.
The Prudential Insurance Company of America       David Descalzi
                                                  Donna M. Harris, Esq.
Schwerman Trucking                                Jack F. Schwerman
Union Dry Dock & Repair Co.                       Robert J. Burke
</TABLE>
 
                                       B-1
<PAGE>   163
 
                                   EXHIBIT C
<PAGE>   164
 
                                                                       EXHIBIT C
 
                 OFFICIAL COMMITTEE OF EQUITY SECURITY HOLDERS
 
                        Mr. Robert Henigson -- Chairman
                            Mr. Milton P. Levy, Jr.
                             Mr. Charles K. Fischer
              Teachers Insurance & Annuity Association of America
 
                                       C-1
<PAGE>   165
 
                                   EXHIBIT D
<PAGE>   166
 
                                                                       EXHIBIT D
 
                    OFFICIAL COMMITTEE OF RETIRED EMPLOYEES
 
                             Olaf Kayser, Chairman
                         John A. Keenan, Vice-Chairman
                                 Robert Breinig
                                 Thomas W. Codd
                                   Gordon Fox
                                  John Graham
                              Sigfrid T. Hellstrom
                       Jerome Bennett, Ex-Officio Member
 
                                       D-1
<PAGE>   167
 
                                   EXHIBIT E
<PAGE>   168
 
                                                                       EXHIBIT E
 
                              LIQUIDATION ANALYSIS
 
I.  INTRODUCTION
 
     Section 1129(a) of the Bankruptcy Code states that the Bankruptcy Court may
confirm a plan of reorganization only if certain requirements are met. One of
these requirements is that each nonaccepting holder of an allowed claim or
interest in an impaired class must receive or retain under the plan on account
of such claim or interest property having a value as of the effective date of
the plan at least equal to the value that such holder would receive if the
debtor were liquidated under chapter 7 of the Bankruptcy Code on the effective
date. See also "Best Interests of Creditors Test" in the accompanying Disclosure
Statement.
 
     Set forth below is a liquidation analysis for Lone Star assuming a
hypothetical chapter 7 liquidation in which a court-appointed trustee liquidates
the Company's Core Assets and Non-Core Assets. Underlying this analysis are a
number of estimates and assumptions which are inherently subject to significant
uncertainties and contingencies, many of which would be beyond the control of
the Debtors. Accordingly, there can be no assurance that the values assumed in
the following analysis would be realized if the Debtors were in fact liquidated.
Nor can there be any assurance that the Bankruptcy Court will accept such
analysis or concur with such assumptions in making its determination under
sec. 1129(a) of the Bankruptcy Code. In addition, any liquidation would
necessarily take place in the future under circumstances which cannot presently
be predicted. Accordingly, while the analysis that follows is necessarily
presented with numerical specificity, if the Debtors' estates were in fact
liquidated, the actual liquidation proceeds could vary from the amounts set
forth below. Such actual liquidation proceeds could be materially lower, or
higher, than the amounts set forth below and no representation or warranty can
be, or is being made with respect to the actual proceeds that could be received
in a chapter 7 liquidation. The liquidation valuations have been prepared solely
for the purpose of estimating the proceeds available in a chapter 7 liquidation
of the Debtors' estates and do not represent values that may be appropriate for
any other purpose. Nothing contained in these valuations is intended or may
constitute a concession or admission of the Debtors for any other purpose.
 
II.  ASSUMPTIONS
 
     The principal assumptions used in the Debtors' liquidation analysis include
the following:
 
  A.  SUBSTANTIVE CONSOLIDATION
 
     Substantive consolidation is the merging of the assets and liabilities of
affiliated entities in a bankruptcy proceeding so that the combined assets and
liabilities are treated as though held and incurred by a single entity. The
consolidated assets create a single fund from which all claims against the
consolidated debtors are to be satisfied. In determining distributions to
holders of claims and interests under this hypothetical chapter 7 liquidation,
the Company has assumed a substantive consolidation of the Debtors' estates. All
intercompany claims by and among the Debtors are eliminated and each claim filed
in the individual case of any of the Debtors will be deemed filed against the
consolidated Debtors in the consolidated case.
 
  B.  NATURE AND TIMING OF THE LIQUIDATION PROCESS
 
     Under section 704 of the Bankruptcy Code, an appointed trustee must, among
other duties, collect and convert the property of the debtor's estate to cash
and close the estate as expeditiously as is compatible with the best interests
of the parties-in-interest. For the purpose of preparing this liquidation
analysis, (a) the liquidations were assumed to commence the first quarter of
1994; (b) the Core Assets and Non-Core Assets were assumed to be sold during the
24-month period ending December 31, 1995, with the first sale assumed to be
completed in the first quarter of 1994; and (c) distributions from the
liquidations were assumed to be made quarterly as the Core Assets and Non-Core
Assets are sold. Depending upon actual circumstances, the 24-month sale period
(the "Liquidation Period") could be significantly longer or, while the Debtors
believe it unlikely, shorter.
 
                                       E-1
<PAGE>   169
 
  C.  ESTIMATED LIQUIDATION PROCEEDS
 
     1.  Introduction
 
     Except as otherwise indicated, the analysis assumes that the Debtors'
operating assets, including both the Core Assets and Non-Core Assets, would be
sold separately as going-concerns. Liquidation proceeds were estimated, in part,
based on the Company's estimates of the net proceeds that could be realized from
the orderly liquidation of these assets. Based on such estimates and estimates
of the net proceeds from the sale in liquidation of other assets (including the
Company's lease interests and surplus real estate), the pre-tax proceeds of such
liquidation of the Debtors' estates would be between $614.7 million and $705
million.1 In arriving at the liquidation estimates, key factors considered by
the Company included the relative attractiveness of each of the Company's
operating assets to potential buyers of cement, aggregate or ready-mix
businesses and the impact on the Debtors' operations resulting from the
disruptions related to the liquidation of the Debtors' estates. The Company's
estimates assume that the Core Assets and Non-Core Assets are sold complete with
all operating assets and working capital and do not reflect the practical
difficulties, if any, related to combining assets held by various legal
entities.
 
     2.  The Core Assets
 
     Liquidation proceeds from the sale of most Core Assets2 were estimated by
SCI using exclusively a discounted cash flow analysis. In arriving at its
estimates, SCI utilized its own objective and independently generated cash flows
for each Core Asset. The liquidation values of the Core Assets were further
discounted by the Debtors utilizing a 14% discount rate back to January 1, 1994
(the assumed "Conversion Date") to reflect the fact that distributions to
creditors under a liquidation would take place significantly later (i.e., over a
two year period) than distributions under the Plan (i.e., as of the Plan's
Effective Date). Finally, the Debtors imposed a range on the liquidation value
of each Core Asset (see accompanying tables).3
 
     3.  The Non-Core Assets
 
     The liquidation values of the Non-Core Assets (including the joint venture
interests and the leaseholds) are essentially the same as the values used under
the Plan. Here again, a discounted cash flow analysis was used to estimate the
liquidation proceeds from the sale of these Assets and the resulting values were
further discounted back, utilizing a 14% discount rate, to the assumed
Conversion Date. Valuations of surplus real estate were based upon appraisals,
and litigation recoveries were premised upon an analysis as to what the likely
outcome of various litigations would be.4
 
- ---------------
 
1 This amount includes estimated cash on the conversion date of $238.2 million.
 
2 The liquidation value of certain other non-operating Core and Non-Core Assets
  were estimated using either the Debtors' own cash flow projections or
  independent appraisals.
 
3 The Debtors have significant reservations about disclosing the specific
  discount rates used in the Liquidation Analysis primarily because disclosure
  of such information could negatively impact the Debtors' efforts to achieve
  the best possible sales price for their assets.
 
4 The Debtors have not included what the results of the liquidation analysis
  would be if the values for the Debtors' assets determined by Glassman-Oliver
  and Grancher & Entorf were used. This is because the three analyses are not
  comparable. While the Debtors' analysis includes estimated liquidation values
  for both the Core Assets and Non-Core Assets, Glassman-Oliver and
  Grancher-Entorf did not value all of the Assets. More importantly, the Debtors
  do not know what liabilities Glassman-Oliver and Grancher-Entorf used in their
  analyses and, therefore, a meaningful comparison among the three analyses
  cannot be made.
 
                                       E-2
<PAGE>   170
 
  D. IMPACT ON THE DEBTORS' OPERATIONS OF THE CONVERSION TO A CHAPTER 7
     LIQUIDATION
 
     The Debtors believe that the conversion to a chapter 7 liquidation and the
resulting pendency of sales of the Core Assets would adversely affect management
and employee morale, customer willingness to purchase, and vendor willingness to
ship raw materials and extend trade credit. Accordingly, the assumed results of
operations for the Debtors during the Projection Period were adjusted to reflect
the Debtors' estimates of the effects of these factors.
 
     The liquidation analysis also assumes that all maintenance-related capital
spending would be continued, and that all major additional capital spending
projects would be deferred. In addition, the Debtors adjusted downward corporate
overhead and operating costs upon the assumption that, as assets were
liquidated, corporate expenses would decline. Nevertheless, overhead and
operating costs necessary to maintain a skeletal operation were factored into
the analysis.
 
  E.  CERTAIN TAX MATTERS
 
     Liquidation tax liabilities as a result of asset sales or corporate
liquidations will depend on the structure of the transactions and the tax laws
of various jurisdictions. However, it is anticipated that, due to the tax basis
in the assets and net operating losses, the transactions can be arranged so that
little or no tax liability would result from the asset sales or corporate
liquidations.
 
  F.  ADDITIONAL LIABILITIES
 
     The Debtors believe that there would be certain actual and contingent
liabilities and expenses, in addition to the reorganization expenses that would
be incurred in a chapter 11 reorganization, for which provision would be
required in any chapter 7 liquidation before distributions could be made to
unsecured claimholders including (a) Administrative Claims and other liabilities
(including retirement, vacation pay, and other employee-related administrative
costs and liabilities) that would be funded from continuing operations if the
businesses of the Debtors were reorganized as going-concerns; (b) escrow and
hold-back amounts that purchasers of Core Assets and certain other assets
presumably would require in connection with disposition transactions if the
Debtors were in liquidation; (c) claims resulting from the rejection of assumed
executory contracts which were estimated to be the amount of administrative
expenses for a one-year period arising out of such rejection; (d) environmental
claims which may surface as the Debtors attempt to sell off the Core Assets,
resulting in, for example, adjustments to the purchase price of those Assets or
the making of certain representations and warranties by the Debtors; (e) pension
termination claims which, for purposes of this liquidation analysis, were
estimated in the amount of the contingent claim filed by the PBGC; (f) retiree
claims which, for purposes of this analysis, were estimated to be the present
value of the unsecured claims filed by the union and certain salaried retirees;
and (g) certain administrative costs.
 
     While the Debtors are not able to estimate the amount of the foregoing
liabilities with precision at this time, solely for purposes of the liquidation
analysis, the Debtors have included amounts related to these additional
liabilities. Such amounts are treated as deductions from the distributions in
liquidation.5
 
  G.  OTHER ASSUMPTIONS
 
     Various other specific assumptions relevant to the Debtors' liquidation
analysis are set forth in the notes which accompany the following tables.
 
- ---------------
 
5 The Debtors have refrained from providing a precise estimate of the amount of
  each additional liability for to do so would compromise the Debtors' ongoing
  negotiations with the holders of these claims.
 
                                       E-3
<PAGE>   171
 
III.  SUMMARY
 
     The Debtors believe that each of the factors summarized above individually
or in combination would have an adverse effect on the prices that could be
obtained in a chapter 7 liquidation of the Debtors' estates. The Debtors believe
that, in light of these uncertainties and in the absence of comparable
situations, the total liquidation proceeds would reflect significant reductions
in the values that would exist in the absence of these factors.
 
     Moreover, if post-petition interest to the Conversion Date were added to
the principal amount of general unsecured claims, the estimated mid-point amount
of such claims to be satisfied would be $875.5 million (versus $752.9 million)
and the estimated mid-point percentage recovery by unsecured creditors would be
67.9% (versus 78.5%).
 
     Based upon the foregoing analysis, the Debtors and the Blackstone Group, as
financial advisor to the Company, believe that the value of the consideration to
be received under the Plan by each holder of an impaired claim and/or impaired
interest exceeds any value such holder would receive in a liquidation of each of
the Debtors' operating and non-operating assets under chapter 7 of the
Bankruptcy Code. As reflected in the accompanying tables, unsecured creditors
would obtain a 78.8% (mid-point) recovery in a liquidation as compared to a
92.5% recovery under the Plan, while holders of Allowed Preferred Stock
Interests would not receive any distribution in a liquidation as compared to a
52.3% (mid-point) recovery under the Plan.
 
              REMAINDER OF PAGE HAS BEEN INTENTIONALLY LEFT BLANK
 
                                       E-4
<PAGE>   172
 
                           LONE STAR INDUSTRIES, INC.
 
                       HYPOTHETICAL LIQUIDATION ANALYSIS
                                  ($ IN 000S)
 
<TABLE>
<CAPTION>
                    PROCEEDS FROM LIQUIDATION                       LOW ESTIMATE     HIGH ESTIMATE
- ------------------------------------------------------------------  ------------     -------------
<S>                                                                 <C>              <C>
Cash on hand and proceeds from the sale of assets(1)..............    $643,013         $ 734,798
Cash flow to fund operations during Liquidation Period(2).........     (22,021)          (22,021)
                                                                    ------------     -------------
Gross Liquidation Proceeds........................................     620,992           712,777
Less trustee and other chapter 7 administrative costs(3)..........      28,122            28,122
                                                                    ------------     -------------
          Liquidation proceeds available for Lone Star claims.....    $592,870         $ 684,655
                                                                    ------------     -------------
                                                                    ------------     -------------
</TABLE>
 
<TABLE>
<CAPTION>
                                                                            % OF ALLOWED         % RECOVERY
                                                      DISTRIBUTION         CLAIM/INTEREST      UNDER PLAN(4)
                                     ESTIMATED    ---------------------   ----------------    ----------------
 RECOVERIES BY LONE STAR CREDITORS    CLAIMS         LOW        HIGH       LOW       HIGH      LOW       HIGH
- -----------------------------------  ---------    ---------   ---------   ------    ------    ------    ------
<S>                                  <C>          <C>         <C>         <C>       <C>       <C>       <C>
Net proceeds available for Secured
  Creditors........................  $  24,319    $  24,319   $  24,319   100.0%    100.0%    100.0%    100.0%
Net proceeds available for
  administrative and priority
  creditors........................     21,194       21,194      21,194   100.0%    100.0%    100.0%    100.0%
Net proceeds available for
  unsecured creditors(5)...........    752,784      547,357     639,142    72.7%     84.9%     85.2%    100.1%
Net Proceeds available for
  Preferred Stock interest(6)......     38,972            0           0     0.0%      0.0%     45.0%     59.8%
Net Proceeds available for Common
  Stock interest...................         NA            0           0       NA        NA       NA*       NA*
</TABLE>
 
- ---------------
 *  To receive common stock and warrants
 
(1) Estimates of realization value for Lone Star's operating Core Assets and
    Non-Core Assets were developed using discounted cash flow methodologies.
    Generally, such valuations were further discounted to reflect the time delay
    to the creditors in realizing their recovery.
 
(2) Corporate payroll and operating costs were estimated assuming certain
    corporate functions would continue throughout the Liquidation Period. Other
    corporate functions would either be eliminated or reduced at the
    commencement of the Liquidation Period.
 
(3) Includes employee termination costs and chapter 7 trustee and professional
    fees. Assumes that a single trustee would be appointed to administer the
    chapter 7 cases. The chapter 7 trustee fees were calculated in accordance
    with Section 326 of the Bankruptcy Code based upon the gross liquidation
    proceeds (excluding cash). Professional fees for counsel and accountants
    were assumed to be 25% of the estimated annual chapter 11 professional fees
    to be incurred in 1993.
 
(4) Estimated value of the consideration to be distributed to holders of claims
    and interests in a consensual plan.
 
(5) The Debtors believe that there would be certain actual and contingent
    liabilities and expenses, in addition to the reorganization expenses that
    would be incurred in a chapter 11 reorganization for which a provision would
    be required in a chapter 7 liquidation. Such liabilities include
    environmental expenses, pension and retiree obligations.
 
(6) Accrued and unpaid dividends, both pre-petition and post-petition owed to
    the holders of Allowed Preferred Stock Interests total $16,839,000.
 
                                       E-5
<PAGE>   173
 
                                   EXHIBIT F
<PAGE>   174
 
                                                                       EXHIBIT F
 
                         PROJECTED FINANCIAL STATEMENTS
 
     The Debtors believe that the Plan meets the Bankruptcy Code's feasibility
requirement that plan confirmation is not likely to be followed by a
liquidation, or the need for further financial reorganization of the Debtors or
any successor of the Debtors under the Plan unless such liquidation is proposed
in the Plan. In connection with the development of the Plan, and for the purpose
of determining whether the Plan satisfies this feasibility standard, the Debtors
analyzed their ability to satisfy their financial obligations while maintaining
sufficient liquidity and capital resources. In this regard, the management of
the Debtors developed and periodically refined the Debtors' business plan and
prepared financial projections (the "Projections") for fiscal year 1993 and the
four-year period from fiscal year 1994 through 1997 (the "Projection Period").
The Projections and certain of the underlying assumptions are summarized below.
 
     The Debtors do not, as a matter of course, publish their business plans and
strategies or make projections of their anticipated financial position or
results of operations. Accordingly, the Debtors do not anticipate that they
will, and disclaim any obligation to, furnish updated business plans or
projections to holders of Claims or Interests after the Effective Date, or to
include such information in documents required to be filed with the Securities
and Exchange Commission or otherwise make such information public.
 
     ALTHOUGH EVERY EFFORT WAS MADE TO BE ACCURATE, THE PROJECTIONS WERE NOT
PREPARED WITH A VIEW TOWARD COMPLIANCE WITH THE GUIDELINES ESTABLISHED BY THE
AMERICAN INSTITUTE OF CERTIFIED PUBLIC ACCOUNTANTS, THE FINANCIAL ACCOUNTING
STANDARDS BOARD, OR THE RULES AND REGULATIONS OF THE SECURITIES AND EXCHANGE
COMMISSION REGARDING PROJECTIONS. FURTHERMORE, THE PROJECTIONS HAVE NOT BEEN
AUDITED OR REVIEWED BY LONE STAR'S INDEPENDENT CERTIFIED ACCOUNTANTS. WHILE
PRESENTED WITH NUMERICAL SPECIFICITY, THE PROJECTIONS ARE BASED UPON A VARIETY
OF ASSUMPTIONS, WHICH MAY NOT BE REALIZED, AND ARE SUBJECT TO SIGNIFICANT
BUSINESS, ECONOMIC AND COMPETITIVE UNCERTAINTIES AND CONTINGENCIES WHICH ARE
BEYOND THE CONTROL OF THE COMPANY. CONSEQUENTLY, THE PROJECTIONS SHOULD NOT BE
REGARDED AS A REPRESENTATION OR WARRANTY BY LONE STAR, OR ANY OTHER PERSON, THAT
THE PROJECTIONS WILL BE REALIZED. ACTUAL RESULTS MAY VARY MATERIALLY FROM THOSE
PRESENTED IN THE PROJECTIONS. HOLDERS OF CLAIMS AND INTERESTS MUST MAKE THEIR
OWN DETERMINATIONS AS TO THE REASONABLENESS OF SUCH ASSUMPTIONS AND THE
RELIABILITY OF THE PROJECTIONS IN REACHING THEIR DETERMINATIONS OF WHETHER TO
ACCEPT OR REJECT THE PLAN.
 
PRINCIPAL ASSUMPTIONS
 
     (i) Business Plan:  In an effort to promulgate a Plan of Reorganization,
Lone Star has developed a business plan ("Business Plan") pursuant to which the
company would transfer substantially all of its joint ventures along with
certain other operating and non-operating assets into Rosebud Holdings, Inc.
("NewCo"), a wholly-owned subsidiary, to facilitate the disposition of these
assets. Lone Star would reorganize the remaining operations around its core
cement, aggregate and ready-mix operations ("Reorganized Lone Star" or the
"Company").
 
     (ii) Reorganized Lone Star:  Reorganized Lone Star's operations would be
centered in the Midwest, Southwest and East Coast of the United States and are
expected to have a strong competitive position in the markets served. The
Company's operations would be segmented into three interrelated business
segments: Cement Operations, Aggregate Operations, and Ready-Mix Operations (See
Disclosure Statement Section II.A.1 "Overview of Operations").
 
                                       F-1
<PAGE>   175
 
     (iii) NewCo:  As of the Effective Date of the Plan, the Debtors will
transfer their interests in their Non-Core Assets (together with associated
liabilities) to NewCo. As set forth in the Plan, holders of Allowed Unsecured
Claims will receive their pro rata shares of the Asset Proceeds Notes. The
disposition of the Non-Core Assets will be administered by NewCo and the
proceeds will be used to satisfy the obligations under the Asset Proceeds Notes.
 
     (iv) Effective Date:  The Projections assume confirmation of the Plan in
accordance with its terms prior to December 31, 1993, and that all transactions
contemplated by the Plan to be consummated by the Effective Date will be so
consummated as of January 3, 1994.
 
     (v) Fresh Start:  The pro forma consolidated balance sheet of the Debtors
reflects the projected accounting effects of the Plan's consummation and the
impact of "fresh start" accounting as promulgated by the AICPA Statement of
Position 90-7 entitled "Financial Reporting By Entities in Reorganization Under
the Bankruptcy Code."
 
OPERATING ASSUMPTIONS
 
     1. Inflation:  The average annual inflation rate assumed for operating
expenses during the Projection Period is 3.0 percent.
 
     2. Revenues:  Lone Star derives its revenues from the sale of cement,
ready-mixed concrete, crushed stone, concrete products and other building
materials. Revenue estimates were developed for each of Lone Star's principal
business units by projecting sales quantities and prices.
 
          (a) Cement Prices: Cement manufacturing is regionally based primarily
     because of the low value-to-weight ratio of the product. Cement plants tend
     to be located within 200 miles of their principal markets. As such, cement
     prices differ geographically, depending on plant efficiency, domestic and
     foreign competition within each market, energy costs, proximity and cost of
     materials, and regional demand. Although overall prices have been
     relatively flat since 1983, increasing demand, declining domestic clinker
     capacity and increasing utilization ratios are expected to result in price
     increases in all of Reorganized Lone Star's markets.
 
          (b) Cement Tons Sold: Cement shipments are both highly seasonal and
     cyclical. Demand for cement closely tracks total construction spending but
     is dependent upon the mix of construction (i.e. residential, public,
     private or highway construction). Cement consumption statistics provided by
     the Portland Cement Association ("PCA") suggests that the most recent
     cement consumption cycle reached its lowest point in 1991 and is expected
     to rebound through the Projection Period.
 
                                       F-2
<PAGE>   176
 
<TABLE>
<CAPTION>
   U.S. CEMENT CONSUMPTION
- -----------------------------
HISTORICAL     (MILLION TONS)
- ----------     --------------
<S>            <C>
   1983              72.4
   1984              83.8
   1985              86.7
   1986              91.2
   1987              92.5
   1988              92.4
   1989              90.7
   1990              89.1
   1991              79.0
   1992              83.9
</TABLE>
 
<TABLE>
<CAPTION>
PROJECTED
- ----------
<S>            <C>
   1993              87.9
   1994              94.0
   1995              97.7
   1996              99.4
   1997             100.0
</TABLE>
 
- ---------------
Source: Portland Cement Association
 
          In developing its Business Plan, Lone Star has assumed that the cement
     consumption cycle will generally follow the PCA forecast.
 
          (c) Aggregates and Ready-Mixed Concrete: Lone Star produces
     construction aggregates (including sand, gravel and crushed stone) on the
     East Coast and in Nova Scotia, Canada; and ready-mixed concrete at various
     locations in Illinois and Tennessee. As with cement, construction
     aggregates and ready-mixed concrete are commodity products with price as
     the principal competitive attribute. Revenue from the sale of these
     products is expected to coincide with the projected increase in cement
     consumption over the Projection Period.
 
          (d) Historical and Projected Sales: A summary of historical and
     projected cement, aggregate and ready-mix sales figures is provided below:
 
<TABLE>
<CAPTION>
                                      HISTORICAL                          PROJECTED
                                ----------------------     ----------------------------------------
                                1990     1991     1992     1993     1994     1995     1996     1997
                                ----     ----     ----     ----     ----     ----     ----     ----
<S>                             <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>
SALES
  ($ millions)
  Cement......................  $163     $155     $175     $183     $196     $203     $215     $221
  Aggregates..................    53       61       46       48       53       58       65       71
  Ready Mix...................    41       32       37       37       41       43       46       48
                                ----     ----     ----     ----     ----     ----     ----     ----
          Total...............  $257     $248     $258     $268     $290     $304     $326     $340
                                ----     ----     ----     ----     ----     ----     ----     ----
                                ----     ----     ----     ----     ----     ----     ----     ----
</TABLE>
 
                                       F-3
<PAGE>   177
 
     3. Operating Expenses:  The Business Plan assumes improvements in gross
profit and operating profit margins throughout the Projection Period:
 
<TABLE>
<CAPTION>
                                            HISTORICAL                          PROJECTED
                                      ----------------------     ----------------------------------------
                                      1990     1991     1992     1993     1994     1995     1996     1997
                                      ----     ----     ----     ----     ----     ----     ----     ----
<S>                                   <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>
GROSS PROFIT(1)
  ($ millions)
  Cement............................  $18      $20      $29      $36      $47      $48      $53      $54
  Aggregates........................    8        8        2        3        6        9       14       18
  Ready Mix.........................    6        3        4        3        5        5        5        6
                                      ----     ----     ----     ----     ----     ----     ----     ----
          Total.....................  $32      $31      $35      $42      $57      $63      $73      $78
                                      ----     ----     ----     ----     ----     ----     ----     ----
                                      ----     ----     ----     ----     ----     ----     ----     ----
</TABLE>
 
- ---------------
(1) Excludes adjustment for Fresh Start Accounting. Numbers may not add due to
rounding.
 
     These improvements are a result of (i) increased cement prices; (ii)
increased coverage of fixed operating expenses as plant utilization improves;
(iii) improved operating efficiencies resulting from capital expenditures; (iv)
continued utilization of waste fuels; and (v) reductions in selling, general and
administrative expenses.
 
     4. Waste Fuels:  The manufacture of cement is highly energy-intensive, with
energy (principally in the form of kiln fuel and electricity for grinding mills)
accounting for approximately one-third of manufacturing costs. Substantially all
of Reorganized Lone Star's domestic productive capacity is located in plants
with kilns primarily fueled by coal. Lone Star has utilized waste materials at
two of its cement plants and is actively exploring such usage at other plants.
Such usage is subject to stringent government regulations that involve
permitting and compliance with applicable environmental regulations. While the
Company believes that it is in substantial compliance with such laws, changes to
them could prohibit the use of waste fuels or make their use cost prohibitive.
The Business Plan assumes a continued use of waste materials, resulting in a
substantial fuel cost savings through the Projection Period.
 
     5. Retiree Benefits:  The Company's Business Plan assumes that a settlement
agreement will be reached with the salaried and union retirees providing for new
health and insurance benefit plans to be funded in part by contributions from
Reorganized Lone Star. The purpose of these proposals is to achieve reductions
in cash outlays and reduce administrative expenses, thereby permitting the
reorganization of Lone Star as a viable competitor under a feasible
reorganization plan, while still maintaining benefits for retirees. The Company
is in the process of negotiating with representatives of the retirees, and there
can be no assurance that a settlement will be reached.
 
     6. Income Taxes:  Income tax projections are based upon an effective
composite tax rate of 39.0% for U.S. federal, state and local taxes. Subject to
certain annual limitations under sec.382 of the Internal Revenue Code, it is
assumed that the net operating loss carryforwards attributable to tax years
ending on or prior to the Effective Date will be available to Reorganized Lone
Star.
 
     7. Capital Expenditures:  The projections assume aggregate capital
expenditures of $100.3 million from the Effective Date through 1997; an amount
sufficient to maintain and upgrade the Company's operating plants. The capital
expenditure budget includes approximately $10.0 million, or one-half of the cost
of constructing a new aggregate facility in West Nyack in 1995. The remaining
cost is assumed to be financed with an operating lease requiring annual payments
of approximately $1.1 million.
 
     8. Working Capital Facility:  Reorganized Lone Star is assumed to have a
working capital facility in the aggregate amount of $35.0 million at a floating
interest rate to fund post-confirmation operations.
 
                                       F-4
<PAGE>   178
 
                           LONE STAR INDUSTRIES, INC.
 
                    PRO-FORMA CONSOLIDATED INCOME STATEMENT
                                 (1993 -- 1997)
                                  ($ IN 000S)
 
<TABLE>
<CAPTION>
                                                1993       1994       1995       1996       1997
                                              --------   --------   --------   --------   --------
<S>                                           <C>        <C>        <C>        <C>        <C>
Revenues
  Cement Operations.........................  $183,421   $195,558   $203,039   $214,909   $220,601
  Aggregate Operations......................    47,759     52,607     58,385     65,464     71,208
  Ready Mix Operations......................    37,059     40,724     42,684     45,841     48,144
                                              --------   --------   --------   --------   --------
          Total Revenues....................  $268,240   $288,888   $304,108   $326,214   $339,953
Gross Profit
  Cement Operations.........................    36,363     47,031     48,315     53,443     54,173
  Aggregate Operations......................     2,797      5,501      9,301     14,305     17,507
  Ready Mix Operations......................     3,066      4,750      4,944      5,441      6,087
  Cost of Revenue Adjustment................    (2,054)      (152)     2,248      2,248      2,248
                                              --------   --------   --------   --------   --------
          Total Gross Profit................    40,172     57,131     64,809     75,437     80,014
Selling, General & Administrative
  Expenses..................................    30,837     30,060     30,277     31,352     31,989
Other Operating Expenses/(Income)...........      (231)       (76)       (96)      (156)      (156)
FAS 106 Retiree Expense.....................    13,800     10,457     10,730     10,983     11,219
                                              --------   --------   --------   --------   --------
          Operating Profit..................    (4,234)    16,690     23,898     33,258     36,963
Non-Operating Expenses/(Income)
  Interest Expense..........................     1,755      8,822      8,656      8,467      8,237
  Interest Income...........................      (713)      (325)      (288)    (1,026)    (2,038)
  Other Non-Operating Expenses..............    25,115       (730)      (960)    (4,024)    (4,326)
  Amortization of Goodwill..................       330          0          0          0          0
  Chapter 11 Expenses.......................    10,681          0          0          0          0
                                              --------   --------   --------   --------   --------
          Total Non-Operating Expenses......    37,169      7,767      7,408      3,417      1,873
Income before Taxes.........................   (41,402)     8,923     16,490     29,841     35,090
Provision for Taxes.........................   (11,029)       246      2,967      8,005      9,997
                                              --------   --------   --------   --------   --------
          Net Income........................  $(30,373)  $  8,676   $ 13,523   $ 21,836   $ 25,093
                                              --------   --------   --------   --------   --------
                                              --------   --------   --------   --------   --------
</TABLE>
 
                                       F-5
<PAGE>   179
 
                           LONE STAR INDUSTRIES, INC.
 
                      PRO-FORMA CONSOLIDATED BALANCE SHEET
                                 (1993 -- 1997)
                                  ($ IN 000S)
 
<TABLE>
<CAPTION>
                                           DEC 31,                   JAN 1,
                                            1993        ADJ.(1)       1994        1994        1995        1996        1997
                                          ---------    ---------    --------    --------    --------    --------    --------
<S>                                       <C>          <C>          <C>         <C>         <C>         <C>         <C>
ASSETS
Current Assets
  Cash and Marketable Securities........  $ 238,172    $(212,196)   $ 25,976    $ 19,799    $ 21,806    $ 42,044    $ 72,000
  Accounts and Notes Receivable, net....     28,447            0      28,447      29,878      31,175      33,291      34,540
  Inventories...........................     38,651       (4,200)     34,451      34,751      33,750      33,445      33,882
  Other Current Assets..................      4,237       (2,376)      1,861         825         835         845         845
                                          ---------    ---------    --------    --------    --------    --------    --------
        Total Current Assets............    309,507     (218,772)     90,735      85,254      87,566     109,625     141,267
Assets Held for Sale....................    195,853      (91,128)    104,725      66,366           0           0           0
Notes Receivable........................      1,364         (915)        449         459         434         407         407
Investments in Unconsolidated JVs.......     25,133       (7,633)     17,500      17,780      18,290      18,814      19,340
Net Property, Plant and Equipment.......    337,031      (33,723)    303,307     312,667     322,077     317,924     307,860
Goodwill................................      9,270       (9,270)          0           0           0           0           0
Other Assets and Deferred Charges.......      6,803       (2,614)      4,189       3,865       3,865       3,865       3,865
                                          ---------    ---------    --------    --------    --------    --------    --------
        TOTAL ASSETS....................  $ 884,961    $(364,056)   $520,905    $486,391    $432,232    $450,635    $472,739
                                          ---------    ---------    --------    --------    --------    --------    --------
                                          ---------    ---------    --------    --------    --------    --------    --------
LIABILITIES AND EQUITY
Current Liabilities
  Working Capital Borrowing.............  $       0    $       0    $      0    $      0    $      0    $      0    $      0
  Accounts Payable......................     11,238            0      11,238       9,198       9,189      10,115      10,459
  Accrued Expenses......................     32,258       (2,300)     29,958      29,355      28,655      24,850      23,650
  Current Portion: Long-term Debt.......      4,000       (2,000)      2,000       3,000       4,000       5,000       7,817
  Current Portion: Retirement Benefit...          0        8,954       8,954       9,548      10,002      10,439      10,698
  Current Portion: Pension Expense......          0        7,618       7,618       7,967       8,447       8,149       8,000
  Other Current Liabilities.............         46            0          46          46          46          46          46
                                          ---------    ---------    --------    --------    --------    --------    --------
        Total Current Liabilities.......     47,543       12,272      59,814      59,114      60,339      58,598      60,670
Long-term Debt..........................          0      199,542     199,542     158,183      87,817      82,817      75,000
Deferred Income Taxes...................      4,067          933       5,000       3,869       5,643       9,382      12,734
Postretirement Benefits other than P....    151,417      (24,215)    127,202     130,311     133,238     135,983     138,703
Other Liabilities.......................     11,445       16,318      27,763      24,654      21,413      18,236      14,920
Liabilities Subject to Chapter 11.......    605,084     (605,084)          0           0           0           0           0
                                          ---------    ---------    --------    --------    --------    --------    --------
        Total Liabilities...............    819,556     (400,234)    419,322     376,131     308,450     305,016     302,027
Stockholders' Equity
  Preferred Stock.......................     37,752      (37,752)          0           0           0           0           0
  Common Stock..........................     18,102       83,481     101,583     101,583     101,583     101,583     101,583
  Capital Surplus.......................    239,867     (239,867)          0           0           0           0           0
  Retained Earnings.....................   (193,744)     193,744           0       8,676      22,199      44,035      69,128
  Treasury Stock........................    (36,572)      36,572           0           0           0           0           0
                                          ---------    ---------    --------    --------    --------    --------    --------
  Stockholders' Equity..................     65,405       36,178     101,583     110,259     123,782     145,618     170,711
        TOTAL LIABILITIES AND EQUITY....  $ 884,961    $(364,056)   $520,905    $486,391    $432,232    $450,635    $472,739
                                          ---------    ---------    --------    --------    --------    --------    --------
                                          ---------    ---------    --------    --------    --------    --------    --------
</TABLE>
 
- ---------------
(1) Pro-forma Consolidated Balance Sheet of the Company reflects the projected
    accounting effects of the Plan's consummation and the impact of "fresh
    start" accounting as promulgated by the AICPA Statement of Position 90-7
    entitled "Financial Reporting by Entities in Reorganization under the
    Bankruptcy Code."
 
                                       F-6
<PAGE>   180
 
                           LONE STAR INDUSTRIES, INC.
 
                              CASH FLOW STATEMENT
                                 (1994 -- 1997)
                                  ($ IN 000S)
 
<TABLE>
<CAPTION>
                                                          1994       1995       1996       1997
                                                        --------   --------   --------   --------
<S>                                                     <C>        <C>        <C>        <C>
Operating Profit......................................  $ 16,690   $ 23,898   $ 33,258   $ 36,963
Depreciation and Depletion Expense....................    22,633     24,109     24,345     24,671
Changes in Working Capital
  Accounts and Notes Receivable, net..................    (1,431)    (1,297)    (2,116)    (1,249)
  Inventories.........................................      (301)     1,001        305       (437)
  Other Current Assets................................     1,036        (10)       (10)         0
  Accounts Payable....................................    (2,040)        (9)       926        344
  Accrued Expenses....................................      (603)      (700)    (3,805)    (1,200)
  Other Current Liabilities...........................         0          0          0          0
                                                        --------   --------   --------   --------
  Cash from Operations................................    35,984     46,993     52,903     59,092
Less: Capital Expenditures............................    31,993     33,519     20,192     14,607
                                                        --------   --------   --------   --------
          OPERATING CASH FLOW.........................  $  3,991   $ 13,473   $ 32,711   $ 44,484
                                                        --------   --------   --------   --------
                                                        --------   --------   --------   --------
Non-Operating Cash Flow
  Other Non-Operating Expenses........................  $    730   $    960   $  4,024   $  4,326
  Provision for Taxes.................................      (246)    (2,967)    (8,005)    (9,997)
  Assets Held for Sale................................    38,359     66,366          0          0
  Notes Receivable....................................       (11)        25         27          0
  Investments in Unconsolidated JVs...................      (280)      (510)      (524)      (526)
  Other Assets and Deferred Charges...................       324          0          0          0
  Deferred Income Taxes...............................    (1,131)     1,773      3,739      3,352
  Postretirement Benefits other than Pensions.........     3,703      3,381      3,181      2,980
  Other Liabilities...................................    (2,760)    (2,761)    (3,475)    (3,465)
                                                        --------   --------   --------   --------
          FREE CASH FLOW..............................  $ 42,679   $ 79,741   $ 31,679   $ 41,155
                                                        --------   --------   --------   --------
                                                        --------   --------   --------   --------
Financing Activities
  Interest Expense, net...............................  $ (8,497)  $ (8,368)  $ (7,441)  $ (6,199)
  Working Capital Borrowing...........................         0          0          0          0
  Long-term Debt Amortization.........................   (40,359)   (69,366)    (4,000)    (5,000)
                                                        --------   --------   --------   --------
          TOTAL FINANCING ACTIVITIES..................  $(48,856)  $(77,734)  $(11,441)  $(11,199)
                                                        --------   --------   --------   --------
                                                        --------   --------   --------   --------
Total Change in Cash and Marketable Securities........  $ (6,177)  $  2,007   $ 20,238   $ 29,956
Cash and Marketable Securities at Beginning of
  Period..............................................    25,976     19,799     21,806     42,044
                                                        --------   --------   --------   --------
Cash and Marketable Securities at End of Period.......  $ 19,799   $ 21,806   $ 42,044   $ 72,000
                                                        --------   --------   --------   --------
                                                        --------   --------   --------   --------
</TABLE>
 
                                       F-7
<PAGE>   181
 
                                   EXHIBIT G
<PAGE>   182
 
                                                                       EXHIBIT G
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                            PLEDGE INTERCREDITOR AND
 
                               COLLATERAL AGENCY
 
                                   AGREEMENT
 
                                     AMONG
 
                            ROSEBUD HOLDINGS, INC.,
 
                                                BANK,
                            AS COLLATERAL AGENT AND
 
                                                BANK,
                       AS TRUSTEE FOR THE HOLDERS OF THE
                       10% ASSET PROCEEDS NOTES DUE 1997
                           OF ROSEBUD HOLDINGS, INC.
 
                            ------------------------
 
                       DATED AS OF                , 1993
 
                            ------------------------
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   183
 
                               TABLE OF CONTENTS
 
<TABLE>
<S>             <C>                                                                       <C>
Section 1.      Definitions.............................................................    G-1
Section 2.      Certain Covenants.......................................................    G-3
Section 3.      The Security Interests..................................................    G-3
Section 4.      Mortgages; Financing Statements; Delivery of Pledged Securities.........    G-4
Section 5.      Filing; Further Assurances..............................................    G-5
Section 6.      Right to Vote and to Receive Cash Distributions on Pledged Collateral;
                Appointment as Attorney-in-Fact.........................................    G-5
Section 7.      Exercise of Remedies....................................................    G-6
Section 8.      Priority of Payments....................................................    G-9
Section 9.      Release of Pledged Collateral...........................................    G-9
Section 10.     Appointment.............................................................    G-9
Section 11.     Nature of Duties........................................................   G-10
Section 12.     Lack of Reliance on the Collateral Agent................................   G-10
Section 13.     Compensation and Indemnification........................................   G-10
Section 14.     Collateral Agent's Dealings with the Company............................   G-11
Section 15.     Securityholders.........................................................   G-11
Section 16.     Resignation by or Removal of the Collateral Agent.......................   G-11
Section 17.     Cash Collateral; Advices................................................   G-12
Section 18.     Collateral Account......................................................   G-12
Section 19.     Notices.................................................................   G-13
Section 20.     Binding Agreement; Assignment; Obligations Several......................   G-13
Section 21.     Governing Law...........................................................   G-13
Section 22.     Effectiveness; Termination..............................................   G-13
Section 23.     Amendments, Supplements and Waivers.....................................   G-14
Section 24.     Inconsistent Provisions.................................................   G-14
Section 25.     Severability............................................................   G-14
Section 26.     Headings................................................................   G-14
Section 27.     Counterparts............................................................   G-15
Section 28.     Exhibits and Schedules..................................................   G-15
</TABLE>
<PAGE>   184
 
                      PLEDGE INTERCREDITOR AND COLLATERAL
                                AGENCY AGREEMENT
 
     PLEDGE INTERCREDITOR AND COLLATERAL AGENCY AGREEMENT (the "Agreement"),
dated as of             , by and among Rosebud Holdings, Inc., a Delaware
corporation (the "Company") and                         Bank, as Collateral
Agent and             Bank, as Trustee (the "Asset Proceeds Note Trustee") with
respect to the Securities issued under the Asset Proceeds Note Indenture of even
date herewith between the Asset Proceeds Note Trustee and the Company (the
"Asset Proceeds Note Indenture").
 
                              W I T N E S S E T H:
 
     WHEREAS, the Asset Proceeds Note Trustee has entered into the Asset
Proceeds Note Indenture pursuant to which the Company shall issue up to
$          aggregate principal amount of 10% Asset Proceeds Notes due 1997 (the
"Securities");
 
     WHEREAS, the Asset Proceeds Note Indenture provides for the possible
issuance of Permitted Working Capital Indebtedness and the grant of a senior
lien on the Permitted Collateral to secure such Indebtedness;
 
     WHEREAS, the Company has agreed to grant a security interest in and to the
Pledged Collateral to secure the Secured Obligations;
 
     WHEREAS, the security interest and rights of the Asset Proceeds Note
Trustee and the Holders of Securities granted herein are intended to be in
addition to the security interest and rights being granted in the common stock
of the Company by Lone Star Industries, Inc. in a Guarantee Agreement and in a
Pledge Agreement, each of even date herewith; and
 
     WHEREAS, the parties hereto desire to set forth their understanding with
respect to the Collateral Agent's duties regarding the Pledged Collateral and
the respective interests of the Secured Creditors (as herein defined) in and to
the Pledged Collateral.
 
     NOW, THEREFORE, in consideration of these premises and other benefits, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
hereby agree as follows:
 
     Section 1.  Definitions.  As used herein, the following terms shall have
the meanings set forth in this Section 1, and all other capitalized terms not
otherwise defined herein shall have the meanings set forth in the Asset Proceeds
Note Indenture. All terms not defined in the Asset Proceeds Note Indenture or in
this Agreement shall have the same meaning as in Article 9 of the Uniform
Commercial Code as in effect in the State of New York.
 
          Acceptable Bank: means a bank or trust company in good standing and
     incorporated under the laws of the United States or any State thereof or
     the District of Columbia, with a combined capital and surplus of at least
     $50,000,000 as set forth in its most recent published report of condition,
     with its principal corporate trust office within the United States.
 
          Agreement: means this Pledge Intercreditor and Collateral Agency
     Agreement, as the same may be amended from time to time in accordance with
     its terms.
 
          Asset Proceeds Note Acceleration Notice: has the meaning assigned to
     such term in Section 7(a) hereof.
 
          Asset Proceeds Note Default: means a "Default" as defined in the Asset
     Proceeds Note Indenture.
 
          Asset Proceeds Note Event of Default: means an "Event of Default" as
     defined in the Asset Proceeds Note Indenture.
 
          Asset Proceeds Note Indenture: means the Indenture, dated as of the
     Effective Date, between the Company and the Asset Proceeds Note Trustee,
     pursuant to which the Securities were issued, as the same may be amended or
     supplemented from time to time in accordance with the terms thereof.
 
                                       G-1
<PAGE>   185
 
          Asset Proceeds Note Remedy Period: has the meaning assigned to such
     term in Section 7(a) hereof.
 
          Asset Proceeds Note Rescission Notice: has the meaning assigned to
     such term in Section 7(a) hereof.
 
          Asset Proceeds Note Trustee: means the Trustee, as defined in the
     Asset Proceeds Note Indenture, and any successor trustee appointed
     thereunder.
 
          Business Day: means "Business Day" as defined in the Asset Proceeds
     Note Indenture.
 
          Cash Collateral: has the meaning assigned to such term in Section 17
     hereof.
 
          Collateral Account: means a separate custodial account or accounts
     maintained by the Collateral Agent, on behalf of the Holders of the
     Securities.
 
          Collateral Agent: means             Bank, in its capacity as
     Collateral Agent under this Agreement, until its resignation or removal as
     Collateral Agent pursuant to the provisions of Section 16 hereof and, upon
     such resignation or removal, any successor Collateral Agent appointed
     pursuant to the provisions of Section 16 hereof until such successor's
     resignation or removal as Collateral Agent pursuant to the provisions of
     Section 16 hereof.
 
          Company: means Rosebud Holdings, Inc., a Delaware corporation, until a
     successor replaces it pursuant to the terms of the Asset Proceeds Note
     Indenture and thereafter means such successor.
 
          Effective Date: means the Effective Date as defined in the Asset
     Proceeds Note Indenture.
 
          Event of Default: means any Asset Proceeds Note Event of Default or
     any failure by the Company in any material respect to perform its
     agreements hereunder which is not cured or waived within 90 days after
     receipt of written notice thereof from the Collateral Agent stating the
     nature of the default
 
          Lien: means with respect to any asset, any mortgage, lien, pledge,
     charge, security interest or similar encumbrance in respect of such asset,
     whether or not filed, recorded or otherwise perfected under applicable law
     (including any conditional sale or other title retention agreement, any
     capitalized lease in the nature thereof, and any filing of or agreement to
     give any financing statement under the Uniform Commercial Code or
     equivalent statues of any jurisdiction, other than an information filing).
 
          Net Proceeds: means "Net Proceeds" as defined in the Asset Proceeds
     Note Indenture.
 
          Officer's Certificate: means "Officer's Certificate" as defined in the
     Asset Proceeds Note Indenture.
 
          Opinion of Counsel: means a written opinion from legal counsel who is
     reasonably acceptable to the Collateral Agent. The counsel may be an
     employee of or counsel to the Company, the Collateral Agent or the Asset
     Proceeds Note Trustee.
 
          Permitted Collateral: means inventory and receivables of the Company
     and its Subsidiaries from time to time pledged to lenders of Permitted
     Working Capital Indebtedness.
 
          Permitted Investments : means purchases of (i) readily marketable
     obligations of or obligations guaranteed by the United States of America or
     issued by any agency thereof and backed by the full faith and credit of the
     United States of America, (ii) readily marketable direct obligations issued
     by any State of the United States of America or any political subdivision
     thereof having a rating of A-1 or P-1, or their equivalent, from either of
     the Rating Agencies, (iii) commercial paper having a rating of A-1 or P-1,
     or their equivalent, from either of the Rating Agencies, (iv) certificates
     of deposit issued by, bankers' acceptances and deposit accounts of, and
     time deposits with, commercial banks of recognized standing chartered in
     the United States of America or Canada with capital, surplus and undivided
     profits aggregating in excess of $100,000,000, (v) Eurodollar time deposits
     having a maturity of less than one year purchased directly from any
     Acceptable Bank, (vi) repurchase agreements and reverse repurchase
     agreements with a term of not more than one year with an Acceptable Bank
     relating to marketable direct obligations issued or unconditionally
     guaranteed by the United States of America, and (vii) shares of
 
                                       G-2
<PAGE>   186
 
     money market funds that invest primarily in Permitted Investments of the
     kind described in clauses (i) through (vi) above.
 
          Permitted Liens: means Permitted Liens as defined in the Asset
     Proceeds Note Indenture and Liens on Permitted Collateral to lenders of
     Permitted Working Capital Indebtedness.
 
          Pledged Collateral : has the meaning assigned to such term in Section
     3 hereof.
 
          Pledged Securities: means (i) all capital stock of all existing or
     hereafter acquired Subsidiaries of the Company, and (ii) the partnership
     interests described on Schedule A hereto.
 
          Rating Agencies: means, collectively, Moody's Investors Services, Inc.
     and Standard & Poor's Corporation, Inc.
 
          Sale of Assets: means "Sale of Assets" as defined in the Asset
     Proceeds Note Indenture.
 
          Secured Creditors: means, collectively, the Holders of Securities and
     the lenders of Permitted Working Capital Loans.
 
          Secured Obligations: means, collectively, all obligations of the
     Company under the Asset Proceeds Note Indenture, the Securities and this
     Agreement.
 
          Securities: means the 10% Asset Proceeds Notes due 1997 issued by the
     Company under the Asset Proceeds Note Indenture, as in effect on the date
     hereof or as amended in accordance with the provisions thereof.
 
          Securities Act : has the meaning assigned to such term in Section 7(b)
     hereof.
 
          Security Interests: means the security interests in the Pledged
     Collateral granted hereunder in favor of the Collateral Agent on behalf of
     the Holders of the Securities.
 
     Section 2.  Certain Covenants.
 
     The Company covenants that:
 
     (a) except for the Permitted Liens and the Security Interests, it will not,
and will not permit any of its Subsidiaries to create, assume, incur or permit
to exist or to be created, assumed or incurred, directly or indirectly, any Lien
of any kind on the Pledged Collateral, and that it will, and will cause each of
its Subsidiaries to, defend the Pledged Collateral against, and take such action
as is necessary to remove, any such Lien, and will defend the Security Interests
against the claims and demands of all Persons; and
 
     (b) it will advise the Collateral Agent promptly, in reasonable detail, of
any Lien or claim made or asserted against any of the Pledged Collateral other
than the Permitted Liens and of the occurrence of any other event that would
have a material adverse effect on the enforceability of the Security Interests
created hereunder.
 
     Section 3.  The Security Interests.
 
     (a) In order to secure the full and punctual payment and performance of the
Secured Obligations in accordance with the terms thereof and subject to Section
9 hereof, the Company hereby assigns and pledges (or has caused the appropriate
Subsidiaries to assign and pledge) to and with the Collateral Agent and grants
to the Collateral Agent for the benefit of the Holders of the Securities:
 
          (x) a first priority Security Interest in (i) the assets of the
     Company and its Subsidiaries listed on Schedule A hereto which is
     incorporated herein by reference, (ii) the Pledged Securities, (iii) all
     non-cash proceeds of any Sale of Assets, (iv) all accessions and additions
     to, substitutions for, income from and replacements, products and proceeds
     of the foregoing (subject to Section 17 hereof and Section   of the Asset
     Proceeds Note Indenture), and (v) all Cash Collateral; and
 
          (y) a second priority Security Interest in (i) all inventory and
     receivables of the Company and its Subsidiaries constituting Permitted
     Collateral and from time to time pledged to lenders of Permitted Working
     Capital Loans; and (ii) all proceeds thereof;
 
                                       G-3
<PAGE>   187
 
provided, however, that the real property, securities, instruments and other
property pledged pursuant to subparagraphs (x) and (y) above (collectively, the
"Pledged Collateral") shall not include any cash interest, cash dividends, cash
distributions or other cash payments paid on or with respect to the Pledged
Collateral except as otherwise set forth in Section 17 hereof.
 
     (b) In the event that any Subsidiary of the Company at any time issues any
additional or substitute capital stock, debt securities or other debt
instruments to the Company or its Subsidiaries, or if any such capital stock or
debt securities are otherwise acquired by the Company, the Company shall
immediately pledge and deposit with the Collateral Agent certificates
representing all such shares, securities or instruments as additional security
for the Secured Obligations in accordance with Section 3(a). If any Person
becomes a Subsidiary of the Company after the date hereof, certificates
representing the capital stock, debt securities or other instruments of such
Subsidiary owned by the Company shall be immediately pledged to and deposited
with the Collateral Agent as additional security for the Secured Obligations
under Section 3(a). All of the foregoing capital stock, debt securities and
instruments shall be deemed part of the Pledged Collateral and shall be subject
to all provisions of this Agreement.
 
     (c) The Company shall, and shall cause each Pledgor Subsidiary to, pledge
to and deposit with the Collateral Agent, immediately upon receipt, any interest
or dividends actually paid to the Company or the Pledgor Subsidiary on any of
the Pledged Collateral in the form of additional stock, securities or
certificates as additional security for the Secured Obligations in accordance
with Sections 3(a), and such additional stock, instruments and certificates
shall be deemed part of the Pledged Collateral and shall be subject to all
provisions of this Agreement.
 
     (d) Provide any required inter-creditor arrangements.
 
     (e) The Security Interests are granted as security only and shall not
subject the Collateral Agent or any of the Holders of the Securities to, or
transfer or in any way affect or modify, any obligation or liability of the
Company or any of its Subsidiaries with respect to any of the Pledged Collateral
or any transaction in connection therewith.
 
     Section 4.  Mortgages; Financing Statements; Delivery of Pledged
Securities.
 
     (a) On or before the Effective Date, the Company shall cause the mortgages
and financing statements indicated on Schedule      in the forms of Exhibits
       to be filed with the appropriate filing officers indicated on such
Schedule and shall deliver copies thereof evidencing such recording to the
Collateral Agent.
 
     (b) All certificates or instruments representing or evidencing the Pledged
Collateral outstanding as of the date hereof shall be delivered to the
Collateral Agent on the Effective Date and shall be held by the Collateral Agent
pursuant hereto at all times during the term of this Agreement (subject to
Section 9 or as otherwise provided herein or in the Asset Proceeds Note
Indenture or the respective Collateral Documents relating thereto), and all
certificates and instruments representing or evidencing stock or other
securities acquired by the Company or any Pledgor Subsidiary after the date
hereof and constituting Pledged Collateral hereunder shall be delivered to the
Collateral Agent immediately upon, and held by the Collateral Agent at all
during the term of this Agreement thereafter, acquisition thereof by the Company
or its Subsidiaries (subject to Section 9 or as otherwise provided herein or in
the Asset Proceeds Note Indenture or the respective Collateral Documents
relating thereto). All such certificates or instruments shall be in suitable
form for transfer by delivery, or shall be accompanied by duly executed
instruments of transfer or assignment endorsed in blank, all in form and
substance reasonably satisfactory to the Collateral Agent.
 
     (c) The Company agrees that it will cause each of the Pledgee Subsidiaries
and, in the event of the merger or consolidation of any such Pledgee Subsidiary
with any other entity, such other entity, not to issue any securities or
instruments, whether in addition to, by stock dividend or other distribution
upon, or in substitution or exchange for, any Pledged Collateral or otherwise,
except for securities and instruments that are issued to the Company or such
Pledgor Subsidiary and promptly delivered to the Collateral Agent pursuant to
Section 4(b) hereof and in which the Collateral Agent, for the account and
benefit of the Holders of the Securities, has a valid and perfected first
priority security interest (or, where provided herein, a second
 
                                       G-4
<PAGE>   188
 
priority security interest), free and clear of all other Liens (except Permitted
Liens) and with respect to which no other party has any interest.
 
     (d) Upon the occurrence and during the continuance of an Asset Proceeds
Note Remedy Period, the Collateral Agent shall have the right, at any time in
its discretion, to transfer to or to register in the name of the Collateral
Agent or any of its nominees any or all of the Pledged Collateral, including the
Pledged Securities (with, in the discretion of the Collateral Agent, such
transfer or registration expressly empowering the Collateral Agent to vote any
voting securities included therein). In addition, the Collateral Agent shall
have the right at any time to exchange certificates or instruments representing
or evidencing Pledged Securities for certificates or instruments of smaller or
larger denominations.
 
     Section 5.  Filing; Further Assurances.
 
     (a) The Company at its own expense will, and will cause each of its
Subsidiaries at its own expense to, execute, deliver, file and record any
mortgages, financing statement, specific assignment or other paper and take any
action that may be necessary or desirable, or that the Collateral Agent may from
time to time reasonably request, in order to create, preserve, perfect or
validate any Security Interest intended to be granted hereunder or to enable the
Collateral Agent to exercise and enforce its rights hereunder with respect to
any of the Pledged Collateral, all in manner and form reasonably satisfactory to
the Collateral Agent; provided, however, the Company shall not be required to
register any sale of the Pledged Collateral under the Securities Act. Without
limiting the generality of the foregoing, the Company will: (i) execute and file
such financing or continuation statements, or amendments thereto and such other
instruments or notices as may be necessary or desirable which the Collateral
Agent may reasonably request in order to perfect and preserve the security
interests granted or purported to be granted hereby; and (ii) deliver and pledge
to the Collateral Agent all securities and instruments (other than checks
received by the Company in the ordinary course of business) constituting Pledged
Collateral duly endorsed and accompanied by duly executed instruments of
transfer or assignments, all in form and substance satisfactory to the
Collateral Agent. To the extent permitted by applicable law, the Company hereby
authorizes the Collateral Agent to execute and file without the signature of the
Company, in the name of the Collateral Agent or otherwise, Uniform Commercial
Code financing statements and continuation statements, and fixture filings and
amendments thereto, (which may be carbon, photographic, photostatic or other
reproductions of this Agreement or of a financing statement relating to this
Agreement) that the Collateral Agent in its sole discretion may deem necessary
or appropriate to further perfect the Security Interests or any of them.
 
     (b) The Company covenants that neither the Company nor any of its
Subsidiaries will enter into any agreement that would impair in any material
respect the Security Interests granted hereunder.
 
     (c) The Company hereby authorizes the Collateral Agent to file one or more
financing or continuation statements, or fixture filings and amendments thereto,
relative to all or any part of the Pledged Collateral without the signature of
the Company where permitted by law.
 
     (d) The Company will furnish to the Collateral Agent, on request, from time
to time statements and schedules further identifying and describing the Pledged
Collateral and such other reports in connection with the Pledged Collateral as
the Collateral Agent may reasonably request, all in reasonable detail.
 
     (e) The Company will not (i) make any change in its corporate name or
conduct its business operations under any fictitious business name or trade
name, or (ii) change the location of its chief executive office, in either case
without giving to the Collateral Agent at least 30 days' prior written notice of
such changed or new name or location.
 
     Section 6.  Right to Vote and to Receive Cash Distributions on Pledged
Collateral; Appointment as Attorney-in-Fact.
 
     (a) So long as no Event of Default has occurred and is continuing and
except as provided in Section 17, the Company shall be entitled to exercise any
and all voting and other consensual rights pertaining to the Pledged Collateral
or any part thereof for any purpose not directly inconsistent with the express
terms of this Agreement or the Asset Proceeds Note Indenture.
 
                                       G-5
<PAGE>   189
 
     (b) Subject to Section 17 hereof, the Company shall have the right to
receive and retain all rent, royalties, cash interest, cash dividends and other
cash distributions, payments or proceeds paid on or with respect to the Pledged
Collateral (other than Net Proceeds of any Sale of Assets), and such cash
distributions, payments and proceeds shall not constitute Pledged Collateral.
 
     (c) The Company hereby irrevocably appoints, and shall cause each Pledgor
Subsidiary to appoint, the Collateral Agent as its proxyholder with respect to
the Pledged Securities and any other voting securities forming a part of the
Pledged Collateral with full power and authority to vote such Pledged Securities
and other voting securities and to act otherwise with respect to such Pledged
Securities and other voting securities on behalf of the Company, provided, that
this proxy shall only be operative upon the occurrence of an Event of Default
and only for so long as such Event of Default continues.
 
     (d) The Company hereby irrevocably appoints, and shall cause each Pledgor
Subsidiary to irrevocably appoint, the Collateral Agent as the Company's or such
Pledgor Subsidiary's attorney-in-fact, with full power of substitution and with
authority in the place and stead of the Company or such Pledgor Subsidiary and
in its name or otherwise, from time to time in the Collateral Agent's
discretion, upon the occurrence and during the continuance of an Asset Proceeds
Note Event of Default to take any action and to execute any instrument which the
Collateral Agent may deem reasonably necessary or advisable to accomplish the
purposes of this Agreement, including, without limitation (i) to continue the
perfection of the Security Interests; (ii) to sell or otherwise transfer the
relevant Pledged Collateral; (iii) to obtain the proceeds of and adjust
insurance claims with respect to any Pledged Collateral; (iv) to ask, demand,
collect, sue for, recover, compound, receive and give acquittance and receipts
for moneys due and to become due under or in respect of any of the Pledged
Collateral; (v) to receive, endorse, and collect any drafts or other
instruments, documents and chattel paper, in connection with clauses (i) and
(ii) above; and (vi) to file any claims or take any action or institute any
proceedings which the Collateral Agent may deem necessary or desirable for the
collection of any of the Pledged Collateral or otherwise to enforce the rights
of the Collateral Agent with respect to any of the Pledged Collateral; provided,
however, that the Collateral Agent shall be under no obligation to take any
action hereunder and, absent negligence or willful misconduct, the Collateral
Agent shall have no liability or responsibility for any action taken or omission
with resect thereto.
 
     Section 7.  Exercise of Remedies.
 
     (a) Asset Proceeds Note Trustee's Notice.  If all unpaid principal and
accrued interest on the outstanding Asset Proceeds Notes is declared to be due
and payable pursuant to the terms of the Asset Proceeds Note Indenture, or if
such principal and interest ipso facto becomes due and payable prior to its
stated maturity pursuant to the Asset Proceeds Note Indenture as a result of the
occurrence of an event of bankruptcy or insolvency or the like, the Asset
Proceeds Note Trustee (if different from the Collateral Agent) shall give notice
to the Collateral Agent of such acceleration (a "Asset Proceeds Note
Acceleration Notice") within five Business Days after such acceleration. Upon
such acceleration or, if the Asset Proceeds Note Trustee is not also the
Collateral Agent, upon receipt by the Collateral Agent of an Asset Proceeds Note
Acceleration Notice together with instructions from the Asset Proceeds Note
Trustee with respect to the Pledged Collateral as to the actions to be taken by
the Collateral Agent, the Collateral Agent shall, to the extent consistent with
the provisions of Section 7(c) below and the other provisions of this Agreement,
as soon as is practicable but in no event later than ten Business Days
thereafter, commence the taking of such actions toward collection or enforcement
of this Agreement as instructed by the Asset Proceeds Note Trustee. If, in the
case where there has been an acceleration, rescission of such acceleration has
occurred in accordance with the terms of the Asset Proceeds Note Indenture, or
the Asset Proceeds Note Event of Default triggering an ipso facto acceleration
is cured or waived in accordance therewith, any direction to the Collateral
Agent to take any action in connection with an Asset Proceeds Note Acceleration
Notice shall be deemed rescinded immediately upon notification by the Asset
Proceeds Note Trustee (the "Asset Proceeds Note Rescission Notice") to the
Collateral Agent of such cure or waiver and rescission of acceleration, as
applicable. The Asset Proceeds Note Trustee shall give the Asset Proceeds Note
Rescission Notice as soon as practicable after such cure or waiver and
rescission. The period between the date of receipt by the Collateral Agent of
any Asset Proceeds Note Acceleration Notice and the date of receipt by the
Collateral Agent of any Asset Proceeds Note Rescission Notice is referred to
herein as an "Asset Proceeds Note Remedy Period."
 
                                       G-6
<PAGE>   190
 
     (b) Remedies Upon Acceleration.  During an Asset Proceeds Note Remedy
Period, if so instructed by the Asset Proceeds Note Trustee (or if the
Collateral Agent is the Asset Proceeds Note Trustee) the Collateral Agent may
exercise on behalf of the Holders of the Securities all the rights of a secured
party under the Uniform Commercial Code or other applicable law with respect to
the Pledged Collateral and, in addition, the Collateral Agent may, without being
required to give any notice, except as herein provided or as may be required by
mandatory provisions of law, sell, assign, give an option or options to
purchase, contract to sell or otherwise dispose of and deliver said Pledged
Collateral, or any part thereof, in one or more parcels at public or private
sale or sales, at any exchange, broker's board or at any of the Collateral
Agent's offices or elsewhere at such prices and on such terms as it may deem
best, for cash or on credit or for future delivery without assumption of any
credit risk. Any of the Holders of the Securities may be the purchaser of any or
all of the Pledged Collateral so sold at any public sale (or, if the Pledged
Collateral is of a type customarily sold in a recognized market or is a type
which is the subject of widely distributed standard price quotations, at any
private sale). The Collateral Agent is authorized, in connection with any such
sale which includes securities, if it deems it advisable so to do, (i) to
restrict the prospective bidders on or purchasers of any of the Pledged
Securities to investors who will represent and agree that they are purchasing
for their own account for investment and not with a view to the distribution or
sale of any such Pledged Securities, (ii) to cause to be placed on certificates
for any or all of the Pledged Securities or on any other securities pledged
hereunder a legend to the effect that such security has not been registered
under the Securities Act of 1933, as amended (the "Securities Act"), and may not
be disposed of in violation of the provisions of said Act, and (iii) to impose
such other limitations or conditions in connection with any such sale as the
Collateral Agent deems necessary or advisable in order to comply with said Act
or any other law. The Company covenants and agrees that it will execute and
deliver such documents and take such other action as the Collateral Agent
reasonably deems necessary or advisable in order that any such sale may be made
in compliance with law; provided that the Company shall not be required to
register any Pledged Securities under the Securities Act. Upon any such sale,
the Collateral Agent shall have the right to deliver, assign and transfer to the
purchaser thereof the Pledged Collateral so sold. Each purchaser at any such
sale shall hold the Pledged Collateral so sold absolutely and free from any
claim or right of whatsoever kind, including any equity or right of redemption
of the Company that may be waived, and the Company, to the extent permitted by
law, hereby specifically waives all rights of redemption, stay or appraisal that
it has or may have under any law now existing or hereafter adopted. The
Collateral Agent shall give the Company not less than 10 days prior written
notice of the time and place of any sale or other intended disposition of any of
the Collateral (or such longer period as may be required by applicable law). The
Collateral Agent and the Company agree that such notice constitutes "reasonable
notification" within the meaning of Section 9-504(3) of the Uniform Commercial
Code. The notice shall (1) in case of a public sale, state the time and place
fixed for such sale, (2) in case of sale at a broker's board or on a securities
exchange, state the board or exchange at which such sale is to be made and the
day on which the Pledged Collateral, or the portion thereof so being sold, will
first be offered for sale at such board or exchange, and (3) in the case of a
private sale, state the day after which such sale may be consummated. Any such
public sale shall be held at such time or times during ordinary business hours
and at such place or places as the Collateral Agent may fix in the notice of
such sale. At any such sale, the Pledged Collateral may be sold in one lot as an
entirety or in separate parcels, as the Collateral Agent may determine. The
Collateral Agent shall not be obligated to make any such sale pursuant to any
such notice. The Collateral Agent may, without notice or publication, adjourn
from time to time by announcement at the time and place fixed for the sale, and
such sale may be made at any time or place to which the same may be so
adjourned. In case of any sale of all or any part of the Pledged Collateral on
credit or for future delivery, the Pledged Collateral so sold may be retained by
the Collateral Agent until the selling price is paid by the purchaser thereof,
but the Collateral Agent shall not incur any liability in case of the failure of
such purchaser to take up and pay for the Pledged Collateral so sold and, in
case of any such failure, such Pledged Collateral may again be sold upon like
notice. The Collateral Agent, instead of exercising the power of sale herein
conferred upon it, may proceed by a suit or suits at law or in equity to
foreclose the Security Interests and sell the Pledged Collateral, or any portion
thereof, under a judgment or decree of a court or courts of competent
jurisdiction.
 
                                       G-7
<PAGE>   191
 
     (c) Rights of Collateral Agent.
 
          (i) Right to Rely.  The Collateral Agent may rely on any document
     reasonably believed by it to be genuine and to have been signed or
     presented by the proper person. The Collateral Agent need not investigate
     any fact or matter stated in any such document. Before the Collateral Agent
     acts or refrains from acting it may consult with counsel and may require an
     Officer's Certificate or an Opinion of Counsel. The Collateral Agent shall
     not be liable for any action it takes or omits to take in good faith in
     reliance on any such certificate or opinion.
 
          (ii) Attorneys/Agents.  The Collateral Agent may act through its
     attorneys and agents and shall not be responsible for the misconduct or
     negligence of any attorney or agent appointed with due care.
 
          (iii) Good Faith Belief in Authority, Rights or Powers.  The
     Collateral Agent shall not be liable for any action it takes or omits to
     take in the good faith belief that such act or omission was authorized or
     within its rights or powers.
 
          (iv) No Investigation.  The Collateral Agent shall not be bound to
     make any investigation into the facts or matters stated in any resolution,
     certificate, statement, instrument, opinion, notice, request, direction,
     consent, order, bond, debenture or other paper or document, but the
     Collateral Agent, in its discretion, may (but shall not be obligated to)
     make such further inquiry or investigation into such facts or matters as it
     may see fit.
 
          (v) Obligation to Act upon Instructions.  The Collateral Agent shall
     be under no obligation to exercise any of the rights or powers vested in it
     by this Agreement at the request, order or direction of the Asset Proceeds
     Note Trustee, pursuant to the provisions of this Agreement, unless the
     Asset Proceeds Note Trustee shall have offered to the Collateral Agent
     reasonable security or indemnity against the costs, expenses and
     liabilities which may be incurred therein or thereby. Upon receipt of such
     reasonable security or indemnity, however, the Collateral Agent shall act
     upon the instructions of the Asset Proceeds Note Trustee, with respect to
     the Pledged Collateral, in accordance with the Asset Proceeds Note
     Indenture. Notwithstanding the foregoing, the Collateral Agent shall not
     take or refrain from taking such action if so taking or refraining from
     taking such action, as the case may be, would violate applicable law or the
     terms of this Agreement or the Asset Proceeds Note Indenture.
 
          (vi) Reasonable Care.  Beyond the exercise of reasonable care to
     assure the safe custody of the Pledged Collateral while held hereunder, the
     Collateral Agent shall have no duty or liability to preserve rights
     pertaining thereto, it being understood that the Collateral Agent shall not
     have responsibility for (a) ascertaining or taking action with respect to
     calls, conversions, exchanges, maturities, tenders or other matters
     relative to any Pledged Collateral, whether or not the Collateral Agent has
     or is deemed to have knowledge of such matters, unless reasonably requested
     in writing to do so by the Company, or (b) taking any necessary steps
     (other than steps taken in accordance with the standard of care set forth
     above to maintain possession of the Pledged Collateral) to preserve rights
     against any parties with respect to any Pledged Collateral.
 
          (vii) Collateral Agent May Perform.  Upon the occurrence and during
     the continuance of an Event of Default hereunder (including an Event of
     Default resulting from a failure to perform any agreement contained
     herein), if the Company fails to perform any agreement contained herein,
     the Collateral Agent may (but shall not be obligated to) itself perform, or
     cause performance of, such agreement, and the expenses of the Collateral
     Agent incurred in connection therewith shall be payable by the Company
     under Section 13.
 
                                       G-8
<PAGE>   192
 
     Section 8.  Priority of Payments.
 
     The proceeds of any sale, disposition or other realization of the Pledged
Collateral by the Collateral Agent or its agents or employees in the enforcement
of its remedies as provided in Section 7 hereof shall be applied by the
Collateral Agent in accordance with this Section 8:
 
          (i) first, to the payment of the reasonable costs and expenses of such
     sale or other realization, including reasonable compensation to agents and
     counsel for the Collateral Agent, and all expenses, liabilities and
     advances incurred or made by the Collateral Agent in connection therewith,
     and any other unreimbursed fees and expenses for which the Collateral Agent
     is to be reimbursed pursuant to Section 13 hereof;
 
          (ii) next, any surplus then remaining to the Asset Proceeds Note
     Trustee for (x) payment of all fees and expenses incurred by the Asset
     Proceeds Note Trustee in the course of the performance of its duties under
     the Asset Proceeds Note Indenture, if any, and not reimbursed thereunder,
     and then (y) payment of the Secured Obligations in accordance with the
     Asset Proceeds Note Indenture to the Holders of the Securities thereunder;
     and
 
          (iii) any surplus then remaining to the Company.
 
     Section 9.  Release of Pledged Collateral.
 
     Notwithstanding any provision of this Agreement to the contrary and unless
a Asset Proceeds Note Event of Default has occurred and is continuing, with
respect to the Pledged Collateral, the Company may dispose of any of the Pledged
Collateral in any transaction or series of transactions approved by the
Company's Board of Directors, and any Pledged Collateral so disposed of shall,
upon such disposition, ipso facto, be released from the Security Interests
created by this Agreement and the Company shall be entitled to receive and
retain the proceeds of such dispositions, except that (x) in accordance with
Section 3 hereof, the non-cash proceeds from a Sale of Assets shall be held as
Pledged Collateral, and (y) cash constituting Net Proceeds from and after the
Effective Date (except such amount as shall be required to provide the Company
with $5 million of working capital) shall constitute Cash Collateral; shall be
held in the Collateral Account in accordance with Section 17 hereof pending its
use to redeem or retire Asset Proceeds Notes in accordance with the Asset
Proceeds Note Indenture and shall, upon request of the Company or the Asset
Proceeds Note Trustee, be paid over to the Asset Proceeds Note Trustee for
application as required by the Asset Proceeds Note Indenture.
 
     To the extent that the provisions of this Section 9 permit or require the
release of any Pledged Collateral, the Collateral Agent shall effect a release
of such Pledged Collateral from the Security Interests created hereby and, at
the Company's request, shall execute all documentation evidencing such release
that the Company deems to be necessary or appropriate. In addition, the
Collateral Agent shall effect a release of all Pledged Collateral upon payment
in full of all obligations under the Asset Proceeds Note Indenture.
 
     Section 10.  Appointment.
 
     The Asset Proceeds Note Trustee, for the benefit of the Holders of
Securities, hereby designates and appoints the Collateral Agent, and the
Collateral Agent hereby accepts such appointment, to serve as collateral agent
upon the terms and conditions set forth herein. The Asset Proceeds Note Trustee
hereby irrevocably authorizes, and each Holder of Securities shall be deemed
irrevocably to have authorized, the Collateral Agent:
 
          (i) to take such action on behalf of Holders of the Securities under
     the provisions of this Agreement and to exercise such powers and to perform
     such duties hereunder as are specifically delegated to or required of the
     Collateral Agent by the terms hereof and such other powers as are
     reasonably incidental thereto; and
 
          (ii) during the continuance of an Asset Proceeds Note Event of Default
     or an Event of Default hereunder, to exercise, on behalf of Holders of the
     Securities, all remedies available to the Collateral
 
                                       G-9
<PAGE>   193
 
     Agent and to initiate, prosecute and defend any and all legal proceedings
     against the Company and its Subsidiaries.
 
     Section 11.  Nature of Duties.
 
     Neither the Collateral Agent nor any of its officers, directors, employees
or agents shall be liable for any claims, losses, damages, penalties, actions,
judgments, suits, liabilities, obligations, costs or expenses of any kind or
nature whatsoever resulting from any action the Collateral Agent takes or omits
to take under this Agreement or in connection therewith, unless caused by its or
their negligence, bad faith or willful misconduct. The Collateral Agent may
perform any of its duties hereunder by or through its agents or employees.
 
     Section 12.  Lack of Reliance on the Collateral Agent.
 
     The Collateral Agent shall have no duty or responsibility, either initially
or on a continuing basis, to provide the Asset Proceeds Note Trustee or any
Holder of Securities with any credit or other information with respect to the
Company or any of its Subsidiaries whether coming into the Collateral Agent's
possession before the issuance of the Securities or at any time or times
thereafter, except as otherwise provided in this Agreement.
 
     Section 13.  Compensation and Indemnification.
 
     (a) Compensation and Expenses.  The Company agrees to pay to the Collateral
Agent, from time to time upon demand, reasonable compensation for the services
of the Collateral Agent hereunder and all fees, costs and expenses of the
Collateral Agent (including, without limitation, the reasonable fees and
disbursements of counsel) (A) arising in connection with the preparation,
execution, delivery, modification and termination of this Agreement, the
enforcement of any of the provisions hereof or the performance of its duties
hereunder, or (B) incurred or required to be advanced in connection with the
sale or other disposition of any Pledged Collateral pursuant to this Agreement
and the preservation, protection, enforcement or defense of the Collateral
Agent's rights under this Agreement and in and to the Pledged Collateral.
 
     (b) Stamp and Other Taxes.  The Company hereby agrees to indemnify the
Collateral Agent, the Asset Proceeds Note Trustee and each Holder of Securities
for, and hold each of them harmless against, any present or future claim for
liability for any mortgage, sales, transfer, gains, stamp or other similar tax
and any penalties or interest with respect thereto, which may be assessed,
levied or collected by any jurisdiction in connection with this Agreement or any
Pledged Collateral.
 
     (c) Filing Fees, Excise Taxes, Etc.  The Company hereby agrees to pay or to
reimburse the Collateral Agent for any and all amounts in respect of all search,
filing, recording and registration fees, taxes, excise taxes and other similar
imposts which may be payable or determined to be payable in respect of the
execution, delivery, performance and enforcement of this Agreement.
 
     (d) Indemnification of Collateral Agent.  The Company shall indemnify the
Collateral Agent, its officers, directors, employees and agents for, and hold
each of them harmless against, any and all claims, demands, expenses (including
but not limited to reasonable compensation, disbursements and expenses of the
Collateral Agent's agents and counsel), losses or liabilities incurred by any of
them without negligence, bad faith or willful misconduct on its part, in any way
arising out of or in connection with the acceptance and administration of this
Agreement and its rights or duties hereunder. The Collateral Agent shall notify
the Company promptly of any claim asserted against the Collateral Agent for
which indemnity is sought hereunder. The Company shall defend any such claim and
the Collateral Agent shall provide reasonable cooperation at the Company's
expense in such defense. The Collateral Agent may have separate counsel and the
Company shall pay the reasonable fees and expenses of such counsel; provided,
that the Company will not be required to pay such fees and expenses if it
assumes the Collateral Agent's defense and provides the Collateral Agent with an
Opinion of Counsel that there is no conflict of interest between the Company and
the Collateral Agent in connection with such defense. The Company need not pay
any amounts in respect of any settlement made without its written consent. The
Company need not reimburse any expense or indemnify
 
                                      G-10
<PAGE>   194
 
against any loss or liability to the extent incurred by the Collateral Agent
through its negligence, bad faith or willful misconduct. When the Collateral
Agent incurs expenses or renders services after an Asset Proceeds Note Event of
Default or an Event of Default hereunder relating to certain events of
bankruptcy, reorganization or insolvency has occurred, such expenses and the
compensation for such services are intended to constitute expenses of
administration under any Bankruptcy Law.
 
     (e) Survival of Obligations.  All obligations set forth in this Section 13
shall survive the execution, delivery and termination of this Agreement and the
payment of all other Secured Obligations.
 
     (f) Lien on Pledged Collateral.  To secure the obligations of the Company
set forth in this Section 13, the Collateral Agent shall have a lien pari passu
with the first (or second) priority liens of the Holders of the Securities on
all Pledged Collateral held or collected by the Collateral Agent in its capacity
as such; provided, however, that only such portion of said obligations as bears
the same ratio to the total amount of said obligations as the value of the
remaining Pledged Collateral bears to the total value of the Pledged Collateral
may be satisfied out of such portion of the Pledged Collateral.
 
     Section 14.  Collateral Agent's Dealings with the Company.
 
     The Collateral Agent may accept deposits from, lend money to, or generally
engage in any kind of banking, trust or other business with the Company or any
of its Subsidiaries, in each case as if it were not the Collateral Agent
hereunder.
 
     Section 15.  Securityholders.
 
     The Collateral Agent may deem and treat the registered owner of any of the
Securities as the owner thereof for all purposes hereunder. Any request,
authority or consent of any person or entity who, at the time of making such
request or giving such authority or consent, is the registered owner of any of
the Securities, shall be conclusive and binding upon any subsequent Holder of
such Securities or other securities issued in exchange therefor. The Asset
Proceeds Note Trustee agrees that it will furnish to the Collateral Agent lists
of the registered owners of all Securities and the outstanding principal amount
thereof within 10 Business Days after any written request therefor from the
Collateral Agent. The Collateral Agent shall be entitled to rely on such lists
as being accurate and complete.
 
     Section 16.  Resignation by or Removal of the Collateral Agent.
 
     (a) Resignation; Removal.  The Collateral Agent may resign from the
performance of all of its functions and duties hereunder at any time by giving
60 Business Days' prior written notice to the Company and the Asset Proceeds
Note Trustee. Holders of      % of the outstanding Securities may at any time
remove the Collateral Agent by giving 20 Business Days' prior written notice to
the Collateral Agent, the Company, and the Asset Proceeds Note Trustee. The
Company may at any time remove the Collateral Agent, by giving 20 Business Days
prior written notice to the Collateral Agent and the Asset Proceeds Note Trustee
if, in the Company's good faith judgement, the Collateral Agent's fees and
expense structure for acting as such hereunder become materially
non-competitive. Such resignation or removal shall take effect upon the
appointment of a successor Collateral Agent pursuant to Section 16(b) or (c)
below or as otherwise provided below.
 
     (b) Appointment of Successor.  Upon any such notice of resignation or
removal, the Asset Proceeds Note Trustee or, if the Collateral Agent is removed
by the Holders of the Securities the Holders of the outstanding Securities
removing the Collateral Agent, as the case may be, shall appoint a successor
Collateral Agent hereunder, which shall be an Acceptable Bank. If a successor
Collateral Agent shall not have been so appointed within the period specified in
Section 16(a) above, the Company shall then appoint a successor Collateral Agent
which shall be an Acceptable Bank and which shall serve as the Collateral Agent
hereunder.
 
     (c) Effectiveness of Resignation or Removal.  A successor Collateral Agent
shall deliver a written acceptance of its appointment to the retiring Collateral
Agent, the Company and the Asset Proceeds Note Trustee. Immediately thereafter,
the retiring Collateral Agent shall transfer all property held by it as
 
                                      G-11
<PAGE>   195
 
Collateral Agent to the successor Collateral Agent, subject to the Lien provided
in Section 13(f) hereof, and shall execute and deliver to the successor
Collateral Agent such documents as are necessary to perfect or maintain the
Security Interests, including any documents necessary to assign or transfer all
interests of the retiring Collateral Agent in the Pledged Collateral to the
successor Collateral Agent, in the form or forms adequate for proper filing or
recording in such offices and such jurisdictions as are necessary to put the
successor Collateral Agent in the same position as was the retiring Collateral
Agent with respect to the Pledged Collateral. Thereupon, the resignation or
removal of the retiring Collateral Agent shall become effective and the
successor Collateral Agent shall have all the rights, powers and duties of the
Collateral Agent under this Agreement. A successor Collateral Agent shall give
notice of its succession to the Asset Proceeds Note Trustee.
 
     (d) Consolidation, Merger, Etc.  If the Collateral Agent consolidates with,
merges or converts into, or transfers all or substantially all of its corporate
trust business to, another corporation, the resulting, surviving or transferee
corporation without any further act, if such resulting, surviving or transferee
corporation is an Acceptable Bank, shall be the successor Collateral Agent. The
transferring, merging or converting Collateral Agent shall, at its own expense,
have all documents necessary to perfect or maintain the Security Interests,
including any documents necessary to assign or transfer all interests of the
transferring, merging or converting Collateral Agent in the Pledged Collateral,
executed and delivered to it in the form or forms adequate for proper filing or
recording in such offices and such jurisdictions as are necessary to put the
successor Collateral Agent in the same position as the transferring, merging or
converting Collateral Agent with respect to the Pledged Collateral.
 
     (e) Compensation Continuing.  Any person or entity acting as Collateral
Agent shall continue to be entitled to receive compensation as provided in
Section 13 hereof so long as such person or entity acts as Collateral Agent
hereunder.
 
     Section 17.  Cash Collateral; Advices.
 
     (a) Cash Collateral.  All Net Proceeds (in excess of amounts sufficient to
leave the Company with $5 million of working capital) from Sales of Assets from
and after the Effective Date, and all cash received upon disposition, transfer,
distribution or otherwise in respect of non-cash proceeds of any Sale of Assets
(collectively, the "Cash Collateral") shall be held in the Collateral Account
under the exclusive dominion and control of the Collateral Agent. The Collateral
Agent shall invest any Cash Collateral and any interest, dividends and proceeds
thereon received by it from time to time in Permitted Investments in accordance
with written instructions from the Company, pending their disposition in
accordance with the Asset Proceeds Note Indenture, and the Collateral Agent
shall have no liability arising out of any such investment made pursuant to such
instructions.
 
     (b) Advices.  The Collateral Agent shall forward promptly to each other
party hereto a copy of each notice, certificate, instruction or other
communication received by the Collateral Agent from any party under this
Agreement or the Asset Proceeds Note Indenture. The Collateral Agent shall also
promptly furnish to the Company, the Asset Proceeds Note Trustee, upon written
request, such other information and documents concerning the Pledged Collateral
and the Collateral Agent's actions with respect thereto as the Asset Proceeds
Note Trustee or the Company may reasonably request.
 
     Section 18.  Collateral Account.
 
     The Collateral Agent shall establish an account in its name as Collateral
Agent under this Agreement, on behalf of the Holders of the Securities, and
shall maintain such accounts and administer the funds in such accounts in
accordance with the terms hereof.
 
                                      G-12
<PAGE>   196
 
     Section 19.  Notices.
 
     Any notices or other communications required or permitted hereunder shall
be in writing, and shall be sufficiently given if made by hand delivery, by
telex, by telecopier or registered or certified mail, postage prepaid, return
receipt requested, addressed as follows:
 
     To the Company:
 
          with a copy to:
 
     To the Collateral Agent:
 
     To the Asset Proceeds Note Trustee:
 
Any party hereto may by notice to each other party designate such additional or
different addresses as shall be furnished in writing by such party. Any notice
or communication to any party hereto shall be deemed to have been given or made
as of the date so delivered, if personally delivered; when answered back, if
telexed; when receipt is acknowledged by telecopier confirmation, if telecopied;
and five calendar days after mailing if sent by registered or certified mail
(except that a notice of change of address shall not be deemed to have been
given until actually received by the addressee). A copy of any notice given
under this Agreement to any party shall also be given to each other party
hereto. Pursuant to and not in limitation of the preceding sentence, any party
hereto may give notice to the Holders of Securities at the addresses set forth
for them in the register kept by the Registrar under the Asset Proceeds Note
Indenture.
 
     Section 20.  Binding Agreement; Assignment; Obligations Several.
 
     This Agreement shall be binding upon and inure to the benefit of the
parties hereto and their respective successors and permitted assigns, including,
without limitation, and without the need for an express assignment or amendment,
subsequent Holders of Securities (whether or not the Securities held by such
persons is outstanding as of the date hereof or issued hereafter). This
Agreement may not be assigned by the Company; provided, however, that this
Agreement shall be deemed to be automatically assigned by the Company to any
person which is a successor to the Company, in accordance with the terms of the
Asset Proceeds Note Indenture. This Agreement shall be deemed to be
automatically assigned by the Collateral Agent to any person who succeeds to the
Collateral Agent in accordance with Section 16 hereof, and such assignee shall
have all rights and powers of, and act as, the Collateral Agent hereunder, and
this Agreement shall be deemed to be automatically assigned by the Asset
Proceeds Note Trustee to any person who succeeds in accordance with the terms of
the Asset Proceeds Note Indenture. Each Holder of the Securities, by its
acceptance of any Securities, consents to and agrees to be bound by the
provisions hereof.
 
     Section 21.  Governing Law.
 
     This Agreement shall be construed in accordance with and governed by the
laws of the State of New York without regard to its conflict of law principles,
except as otherwise required by mandatory provisions of law and except to the
extent that remedies provided by the laws of any jurisdiction other than New
York are governed by the laws of such jurisdiction.
 
     Section 22.  Effectiveness; Termination.
 
     This Agreement shall become effective on the Effective Date. Upon the
repayment in full of all the Secured Obligations, the Security Interests and
this Agreement shall terminate and all rights to the Pledged Collateral shall
revert to the Company and its Subsidiaries. Upon termination of this Agreement,
the Collateral Agent shall reassign and redeliver to the Company, as the case
may be, the Pledged Collateral hereunder which has not been sold, disposed of,
retained or applied by the Collateral Agent in accordance with the terms hereof.
Such reassignment and redelivery shall be without warranty by or recourse to the
Collateral Agent, and shall be at the expense of the Company. Thereafter, this
Agreement shall not constitute a lien upon or grant any security interest to any
person in any of the Pledged Collateral, and the Collateral Agent shall, at the
Company's expense, deliver to the Company (i) written acknowledgement thereof
and
 
                                      G-13
<PAGE>   197
 
cancellation of this Agreement and (ii) such other documents as are reasonably
requested by the Company, in a form or forms as reasonably requested by the
Company and adequate for proper filing or recording in such offices and such
jurisdictions as the Company reasonably deems necessary to release the Security
Interests.
 
     Section 23.  Amendments, Supplements and Waivers.
 
     (a) With the written consent of the Asset Proceeds Note Trustee or      %
of the Holders of the outstanding Securities, either the Collateral Agent and
the Company may, from time to time, enter into written supplemental agreements
for the purpose of amending, modifying or waiving any provision of this
Agreement or changing in any manner the rights of the Collateral Agent, the
Asset Proceeds Note Trustee and the Company hereunder. Any such supplemental
agreement shall be binding upon the Company, the Collateral Agent, the Asset
Proceeds Note Trustee, all Holders of Securities, and their respective
successors and permitted assigns. The Collateral Agent shall not enter into any
such supplemental agreement unless it shall have received an Officer's
Certificate of the Company and an Opinion of Counsel to the effect that the
execution, delivery and performance of such supplemental agreement will not
result in a Default or Event of Default under the Asset Proceeds Note Indenture.
 
     (b) Notwithstanding the provisions of Section 23(a) above, the Collateral
Agent and the Company may, at any time and from time to time, without the
consent of the Asset Proceeds Note Trustee or any Holders of Securities, enter
into agreements supplemental hereto or additional agreements or grant any waiver
hereunder, in form satisfactory to the Collateral Agent, in which a security
interest is granted in favor of the Collateral Agent for the benefit of the
Holders of the Securities or which:
 
          (i) Holders of the Securities adds to the covenants of the Company for
     the benefit of the Holders of the Securities or the Asset Proceeds Note
     Trustee, or surrenders any right or power herein conferred upon the
     Company; or
 
          (ii) cures any ambiguity, defect or inconsistency in this Agreement or
     makes any other change which does not adversely effect the rights of any
     Holder of any Securities hereunder.
 
Notice of any amendment, modification or waiver to this Agreement or of any
additional or supplemental agreements entered into in accordance with Section
23(a) or (b) above shall be given by the Collateral Agent to the Asset Proceeds
Note Trustee, and the Asset Proceeds Note Trustee shall give such notice to the
Holders of Securities.
 
     Section 24.  Inconsistent Provisions.
 
     If any provision of this Agreement shall be inconsistent with, or contrary
to, any provision of the Asset Proceeds Note Indenture, such provision of the
Asset Proceeds Note Indenture shall be controlling and shall supersede such
inconsistent provisions hereof to the extent necessary to give full effect to
such provision of the Asset Proceeds Note Indenture.
 
     Section 25.  Severability.
 
     In the event that any provision contained in this Agreement shall for any
reason be held to be illegal or invalid under the laws of any jurisdiction, such
illegality or invalidity shall in no way impair the effectiveness of any other
provision hereof or of such provision under the laws of any other jurisdiction;
provided, that in the construction and enforcement of such provision under the
laws of the jurisdiction in which such holding of illegality or invalidity
exists, and to the extent only of such illegality or invalidity, this Agreement
shall be construed and enforced as though such illegal or invalid provision had
not been contained herein.
 
     Section 26.  Headings.
 
     Section headings used herein are inserted for convenience only and shall
not in any way affect the meaning or construction of any provision of this
Agreement.
 
                                      G-14
<PAGE>   198
 
     Section 27.  Counterparts.
 
     This Agreement may be executed in any number of counterparts, each of which
when so executed and delivered shall be an original, and all of which shall
together constitute one and the same instrument. A complete set of counterparts
shall be lodged with the Collateral Agent and the Asset Proceeds Note Trustee.
 
     Section 28.  Exhibits and Schedules.
 
     Exhibits and Schedules attached hereto shall be deemed part of this
Agreement of fully as if set forth in full herein.
 
     IN WITNESS WHEREOF, the Collateral Agent, the Asset Proceeds Note Trustee
and the Company have caused this Agreement to be executed and delivered by their
respective officers there-unto duly authorized as of the day and year first
above written.
                                                                           BANK,
                                          ---------------------------------
                                          as Asset Proceeds Note Trustee
                                          By:
                                             ----------------------------------
                                          Its:
                                              ---------------------------------
                                                                           BANK,
                                          ---------------------------------
                                          as Collateral Agent
                                          By:
                                             ----------------------------------
                                          Its:
                                              ---------------------------------
 
                                          ROSEBUD HOLDINGS, INC.
                                          By:
                                             ----------------------------------
                                          Its:
                                              ---------------------------------
 
                                      G-15
<PAGE>   199
 
                                   SCHEDULE A
 
                               PLEDGED COLLATERAL
 
                                      GA-1
<PAGE>   200
 
                                   EXHIBIT H
<PAGE>   201
 
                                                                       EXHIBIT H
 
                              AMENDED AND RESTATED
 
                          CERTIFICATE OF INCORPORATION
 
                                       OF
 
                           LONE STAR INDUSTRIES, INC.
 
     It is hereby certified that the present name of the corporation
(hereinafter called the "corporation") is Lone Star Industries, Inc. The name
under which the corporation was originally incorporated is LCE Corporation. The
date of filing of the original certificate of incorporation with the Secretary
of State of the State of Delaware is October 14, 1968.
 
     The provisions of the certificate of incorporation of the corporation are
hereby amended by striking out all of the Articles thereof and by substituting
in lieu thereof the following:
 
     FIRST: The name of the corporation is Lone Star Industries, Inc.
 
     SECOND: The registered office of the corporation is to be located at 1209
Orange Street, in the City of Wilmington, County of Kent, State of Delaware. The
name of its registered agent at that address is The Corporation Trust Center.
 
     THIRD: The purpose of the corporation is to engage in any lawful act or
activity for which corporations may be organized under the General Corporation
Law of the State of Delaware.
 
     FOURTH: The corporation shall have the authority to issue Twenty Five
Million (25,000,000) shares of common stock, par value one dollar ($1.00) per
share. The corporation shall not have the authority to issue nonvoting equity
securities.
 
     FIFTH: Whenever a compromise or arrangement is proposed between this
corporation and its creditors or any class of them and/or between this
corporation and its stockholders or any class of them, any court of equitable
jurisdiction within the State of Delaware may, on the application in a summary
way of this corporation or of any creditor or stockholder thereof or on the
application of any receiver or receivers appointed for this corporation under
the provisions of sec.279 of Title 8 of the Delaware Code or on the application
of trustees in dissolution or of any receiver or receivers appointed for this
corporation under the provisions of sec.279 of Title 8 of the Delaware Code
order a meeting of the creditors or class of creditors, and/or of the
stockholders or class of stockholders of this corporation, as the case may be,
to be summoned in such manner as the said court directs. If a majority in number
representing three-fourths in value of the creditors or class of creditors,
and/or of the stockholders or class of stockholders of this corporation, as the
case may be, agree to any compromise or arrangement and to any reorganization of
this corporation as a consequence of such compromise or arrangement, the said
compromise or arrangement and the said reorganization shall, if sanctioned by
the court to which the said application has been made, be binding on all the
creditors or class or creditors, and/or on all the stockholders or class of
stockholders, of this corporation, as the case may be, and also on this
corporation.
 
     SIXTH: To the fullest extent that elimination or limitation of the
liability of directors is permitted by law, as the same is now or may hereafter
be in effect, no director of the corporation shall be liable to the corporation
or its stockholders for monetary damages for breach of his or her fiduciary duty
as a director.
 
     SEVENTH: The corporation shall, to the fullest extent permitted by law, as
the same is now or may hereafter be in effect, indemnify each person (including
the heirs, executors, administrators and other personal representatives of such
person) against expenses including attorneys' fees, judgments, fines and amounts
paid in settlement, actually and reasonably incurred by such person in
connection with any threatened, pending or completed suit, action or proceeding
(whether civil, criminal, administrative or investigative in nature or
otherwise) in which such person may be involved by reason of the fact that he or
she is or was a director or officer of the corporation or is or was serving any
other incorporated or unincorporated enterprise in such capacity at the request
of the corporation.
 
                                       H-1
<PAGE>   202
 
     EIGHTH: Unless, and except to the extent that the by-laws of the
corporation shall so require, the election of directors of the corporation need
not be by written ballot.
 
     NINTH: The board of directors may from time to time adopt, amend or repeal
the by-laws of the corporation, subject to the power of the stockholders to
adopt any by-laws or to amend or repeal any by-laws adopted, amended or repealed
by the board of directors.
 
     The authority for the making of this amendment and restatement of the
certificate of incorporation is contained in a court order described in Section
303(c) of the Delaware General Corporation Law.
 
     IN WITNESS WHEREOF, the corporation has caused this Amended and Restated
Certificate of Incorporation to be executed by its duly authorized officer this
     day of                , 1993.
 
                                          LONE STAR INDUSTRIES, INC.
 
                                          By:
                                             ----------------------------------
                                              Name:
                                              Title:
 
                                       H-2
<PAGE>   203
 
                                                        EXHIBIT I
<PAGE>   204
 
                                                                       EXHIBIT I
 
                                    BY-LAWS
 
                                       OF
 
                           LONE STAR INDUSTRIES, INC.
 
                                   ARTICLE I.
 
                                    OFFICES.
 
     Section 1.  Principal Office.  The principal office of the Corporation in
the State of Delaware shall be in the City of Wilmington, County of New Castle,
and its resident agent shall be The Corporation Trust Company.
 
     Section 2.  Other Offices.  The Corporation may have offices at any other
place or places, as from time to time the Board of Directors may determine or
the business of the Corporation may require.
 
                                  ARTICLE II.
 
                           MEETINGS OF STOCKHOLDERS.
 
     Section 1.  Annual Meetings.  The annual meeting of the stockholders for
the election of directors and for the transaction of such other business as may
come before the meeting shall be held on such date as may be fixed by the Board
of Directors and specified in the notice thereof, or if not so fixed it shall be
held on the first Thursday in May in each year, unless it is a legal holiday
under the laws of the state where such meeting is to be held. If it is a legal
holiday under the laws of that state, the meeting shall be held on the next
succeeding business day which is not a legal holiday under the laws of that
state.
 
     Section 2.  Special Meetings.  Special meetings of the stockholders for any
purpose or purposes, unless otherwise prescribed by statute, may be called at
any time by the Chairman of the Board or by order of the Board of Directors. At
any such special meeting of the stockholders, only such business shall be
conducted as shall have been specified in the notice of meeting (or any
supplement thereto).
 
     Section 3.  Place of Meeting.  Each meeting of stockholders of the
Corporation shall be held at the place, within or without the State of Delaware,
and at the hour specified in the notice or waiver of notice of the meeting.
 
     Section 4.  Notice of Meetings.  Except as otherwise provided by law,
notice of each meeting of the stockholders shall be given to each stockholder of
record entitled to vote at such meeting, not less than ten nor more than sixty
days before the day on which the meeting is to be held. Notice may be given by
delivering a written or printed notice thereof to a stockholder personally, or
by mailing such notice in a postage prepaid envelope addressed to a stockholder
at his or her post-office address appearing in the records of the Corporation or
by transmitting notice thereof to a stockholder at such address by telegraph,
cable, wireless, or other form of recorded communication. Except where expressly
required by law, no publication of any notice of a meeting of stockholders shall
be required. Notice of any meeting of stockholders shall not be required to be
given to any stockholder who attends such meeting in person or by proxy without
protesting at the beginning of the meeting that the meeting is not lawfully
called or convened or who in person or by attorney duly authorized to do so
waives such notice in writing or by telegraph, cable, wireless or other form of
recorded communication, either before or after such meeting. Notice of any
adjourned meeting of the stockholders shall not be required to be given, except
where expressly required by law.
 
     Section 5.  Quorum.  At each meeting of the stockholders, except where
other provision is made by law, presence in person or by proxy of the holders of
a majority of the issued and outstanding stock of the Corporation entitled to
vote at the meeting constitutes a quorum for the transaction of business. In the
absence of a quorum, a majority in voting interest of the stockholders of the
Corporation present in person or by proxy
 
                                       I-1
<PAGE>   205
 
and entitled to vote, or, in the absence of all the stockholders entitled to
vote, any officer entitled to preside at, or act as secretary of, such meeting
shall have the power to adjourn the meeting from time to time, until
stockholders holding the requisite amount of stock shall be present or
represented. At any such adjourned meeting at which a quorum is present, any
business may be transacted which might have been transacted at the meeting as
originally called. No notice of an adjourned meeting need be given if the time
and place are announced at the meeting at which the adjournment is taken unless
the adjournment is for more than 30 days or a new record date is fixed for the
meeting.
 
     Section 6.  Organization.  At each meeting of the stockholders, the
Chairman of the Board, or if he or she is absent, such person as may be
designated by the Board of Directors, or if such person is absent, another
officer of the Corporation chosen as chairman of such meeting by a majority in
voting interest of the stockholders present in person or by proxy and entitled
to vote at the meeting, or if all the officers of the Corporation are absent, a
stockholder holding of record shares of stock of the Corporation so chosen,
shall act as chairman of the meeting and preside at it. The Secretary, or if he
or she is absent from such meeting or is required pursuant to the provisions of
this Section 6 to act as chairman of such meeting, the person (who shall be an
Assistant Secretary, if an Assistant Secretary is present at the meeting) whom
the chairman of the meeting shall appoint, shall act as secretary of the meeting
and keep the minutes of it.
 
     Section 7.  Order of Business.  The order of business at each meeting of
the stockholders shall be determined by the chairman of such meeting. However,
such order of business may be changed by the vote of a majority in voting
interest of those present in person or by proxy at such meeting and entitled to
vote at it.
 
     Section 8.  Voting.  Except as otherwise provided in the Certificate of
Incorporation, each stockholder shall, at each meeting of the stockholders, be
entitled to one vote in person or by proxy for each share of stock of the
Corporation held by him or her and registered in his or her name on the books of
the Corporation on the date fixed pursuant to the provisions of Section 7 of
Article VII of these By-laws as the record date for the determination of
stockholders who shall be entitled to notice of and to vote at such meeting.
Shares of its own stock belonging to the Corporation or to another corporation,
if a majority of the shares entitled to vote in the election of directors of
such other corporation is held by the Corporation, shall not be entitled to
vote. Each stockholder entitled to vote shall be entitled to vote in person or
by proxy; provided, however, that the right to vote by proxy shall exist only if
the instrument authorizing the proxy to act has been executed in writing by the
stockholder personally or by the stockholder's attorney duly authorized in
writing to do so, and delivered to the Secretary of the Corporation or to the
Secretary of the meeting. However, no proxy shall be voted or acted upon after
three (3) years from its date, unless the proxy shall provide for a longer
period. At all meetings of the stockholders all matters, except where other
provision is made by law, by the Certificate of Incorporation of the Corporation
or by these By-laws, shall be decided by the vote of a majority in voting
interest of the stockholders present in person or by proxy and entitled to vote,
as long as a quorum is present. Unless demanded by a stockholder of the
Corporation present in person or by proxy at any meeting of the stockholders and
entitled to vote thereat or so directed by the chairman of the meeting, the vote
on any question need not be by ballot. Upon a demand of any stockholder for a
vote by ballot on any question or at the direction of the chairman that a vote
by ballot be taken on any question, such vote shall be taken. On a vote by
ballot each ballot shall be signed by the stockholder voting, or by his or her
proxy, if there be such proxy, and shall state the number of shares voted.
 
     Section 9.  List of Stockholders.  It shall be the duty of the Secretary or
other officer of the Corporation who shall have charge of its stock ledger,
either directly or through another officer of the Corporation designated by him
or her or through a transfer agent appointed by the Board of Directors, to
prepare and make, at least ten (10) days before every meeting of the
stockholders, a complete list of the stockholders entitled to vote at the
meeting arranged in alphabetical order, and showing the address of each
stockholder and the number of shares registered in the name of each stockholder.
Such list shall be open to the examination of any stockholder, for any purpose
germane to the meeting, during ordinary business hours, for a period of at least
ten (10) days prior to said meeting, either at a place within the city where
said meeting is to be held, which place shall be specified in the notice of said
meeting, or, if not so specified, at the place where said meeting is to be held.
The list shall also be produced and kept at the time and place of said meeting
during the whole meeting, and may be inspected by any stockholder who is
present. The stock ledger shall be the only
 
                                       I-2
<PAGE>   206
 
evidence as to who are the stockholders entitled to examine the stock ledger,
such list or the books of the Corporation, or to vote in person or by proxy at
any meeting of stockholders.
 
     Section 10.  Inspectors of Votes.  At each meeting of the stockholders the
chairman of such meeting may appoint two Inspectors of Votes to act at it. Each
appointed Inspector of Votes shall first subscribe to an oath or affirmation
faithfully to execute the duties of an Inspector of Votes at the meeting with
strict impartiality and according to the best of his or her ability. The
Inspector of Votes, if any, shall take charge of the ballots at the meeting and
after the balloting on any question shall count the ballots cast and shall make
a report in writing to the Secretary of the meeting of the results of the vote.
An Inspector of Votes need not be a stockholder of the Corporation, and any
officer of the Corporation may be an Inspector of Votes on any question other
than a vote for or against his or her election to any position within the
Corporation or on any other question in which he or she may be directly
interested.
 
     Section 11.  Business to be Conducted.
 
     (a) At any annual meeting of the stockholders, only such business shall be
conducted as is properly brought before the meeting. In order for business to be
properly brought before the meeting, the business must either be (1) specified
in the notice of meeting (or any supplement thereto) given by or at the
direction of the Board of Directors; (2) otherwise properly brought before the
meeting by or at the direction of the Board of Directors, or (3) otherwise
properly brought before the meeting by a stockholder. In addition to any other
applicable requirements, for business to be properly brought before an annual
meeting by a stockholder, the stockholder must have given timely notice thereof
in writing to the Secretary of the Corporation. To be timely, a stockholder's
notice must be delivered to or mailed and received at the principal executive
offices of the Corporation, not more than 65 days prior to the meeting nor later
than 10 business days after the giving of notice of the meeting to the
stockholders by the Corporation; provided, however, that in the event that less
than 15 days' notice of the date of the meeting is given to stockholders, notice
by the stockholder to be timely must be so received not later than the close of
business on the fifth business day preceding the date of the meeting. A
stockholder's notice to the Secretary shall set forth as to each matter the
stockholder proposes to bring before the annual meeting (1) a brief description
of the business which the stockholder wishes to bring before the annual meeting
and the reasons for conducting such business at the annual meeting; (2) the name
and record address of the stockholder proposing such business; (3) the class and
number of shares of the Corporation which are beneficially owned by the
stockholder, and (4) any material interest of the stockholder in such business.
 
     (b) Notwithstanding anything in these By-laws to the contrary, no business
shall be conducted at the annual meeting except in accordance with the
procedures set forth in this Section 11 of Article II; provided, however, that
nothing in this Section 11 of Article II shall be deemed to preclude discussion
by any stockholder of any business properly brought before the annual meeting.
 
     (c) The Chairman of the Board or other officer presiding at the annual
meeting shall determine whether business is properly brought before the meeting
in accordance with the provisions of this Section 11 and, if not, he or she
shall so declare to the meeting and any such business not so brought shall not
be transacted.
 
     Section 12.  Stockholder Nomination of Directors.  Not more than 65 days
prior to the date of an annual meeting nor later than 10 business days after the
giving of notice thereof to the stockholders, any stockholder who intends to
make a nomination of a candidate for election to the Board of Directors at such
annual meeting shall deliver a notice to the Secretary of the Corporation
setting forth (1) as to each nominee whom the stockholder wishes to nominate for
election or reelection as a director (i) the name, age, business address and
residence address of the nominee; (ii) the principal occupation or employment of
the nominee; (iii) the class and number of shares of capital stock of the
Corporation which are beneficially owned by the nominee; and (iv) any other
information concerning the nominee that would be required, under the rules and
regulations of the Securities and Exchange Commission, in a proxy statement
soliciting proxies for the election of such nominee as a director; and (2) as to
the stockholder giving the notice (i) the name and record address of the
stockholder and (ii) the class and number of shares of capital stock of the
Corporation which the stockholder beneficially owns; provided, however, that in
the event that less than 15 days' notice of the annual meeting is given to
stockholder, notice by the stockholder to be timely must be so delivered not
later
 
                                       I-3
<PAGE>   207
 
than the close of business on the fifth day preceding the meeting. Each notice
shall include a signed consent to serve as a director of the Corporation, if
elected, of each such nominee. The Corporation may require any proposed nominee
to furnish such other information as may reasonably be required by the
Corporation to determine the eligibility of such person to serve as a director.
 
                                  ARTICLE III.
 
                              BOARD OF DIRECTORS.
 
     Section 1.  General Powers.  The property, business and affairs of the
Corporation shall be managed by or under the direction of the Board of
Directors.
 
     Section 2.  Number, Qualification and Term of Office.  Subject to the
requirements of the laws of the State of Delaware and of the Certificate of
Incorporation of the Corporation, the Board of Directors may from time to time
by resolution determine the number of directors which shall be not less than
three but not more than eighteen directors. Directors need not be stockholders.
Directors shall be divided into three classes, designated Class I, Class II and
Class III. Each class shall consist, as nearly as may be possible, of one third
of the total number of directors constituting the entire Board of Directors. At
each Annual Meeting of Stockholders, successors to the class of directors whose
terms expire at that Annual Meeting shall be elected for a three year term. If
the number of directors is changed, an increase or decrease shall be apportioned
among the classes so as to maintain the number of directors in each class as
nearly equal as possible, but in no case shall a decrease in the number of
directors shorten the term of any incumbent director. A director shall hold
office until the Annual Meeting of Stockholders for the year in which his or her
term expires and until his or her successor is elected and qualified, subject,
however, to prior death, resignation, retirement, disqualification or removal
from office.
 
     Section 3.  Election of Directors.  At each meeting of the stockholders for
the election of directors, the persons receiving the greatest number of votes,
up to the number of directors to be elected, shall be the directors. Such
election need not be by ballot.
 
     Section 4.  Resignations.  Any director may resign at any time by giving
written notice of resignation to the Corporation. The resignation shall take
effect at the time specified, or, if the time when it becomes effective is not
specified, then it shall take effect immediately upon its receipt by the
Secretary. Unless otherwise specified in the resignation, acceptance is not
necessary to make it effective.
 
     Section 5.  Removal of Directors.  Subject to the rights of the holders of
any class or series of stock then outstanding, any director, or the entire Board
of Directors, may be removed from office at any time, with or without cause. The
vacancy in the Board of Directors caused by the removal of a director may be
filled by the stockholders at any annual meeting or special meeting called for
such purpose, or if the stockholders fail to fill the vacancy, by the Board of
Directors as provided in Section 6 of this Article III. The term of a director
elected to fill a vacancy caused by the removal of a director shall expire at
the same time as the term of the other directors of the class in which the
vacancy occurred.
 
     Section 6.  Vacancies, etc.  If there is a vacancy in the Board of
Directors caused by the death, resignation, disqualification or removal of a
director, or by an increase in the number of directors, the vacancy may be
filled by a majority of the directors then in office, although less than a
quorum, or by a sole remaining director. The term of any director so elected by
the Board of Directors shall expire at the same time as the term of the other
directors of the class for which the new directorship is created or in which the
vacancy occurred.
 
     Section 7.  Place of Meeting, etc.  The Board of Directors may hold its
meetings at any place within or without the State of Delaware as it may
determine.
 
     Section 8.  Organization Meeting.  After each annual meeting of
stockholders at which directors are elected, and on the same day, the Board of
Directors shall meet for the purpose of organization and the transaction of
other business at the place where the annual meeting of the stockholders is
held. Notice of the meeting need not be given. The meeting may be held at any
other time or place designated in a notice given as
 
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<PAGE>   208
 
hereinafter provided for special meetings of the Board of Directors or in a
consent and waiver of notice of meeting signed by all the directors.
 
     Section 9.  Regular Meetings.  Regular meetings of the Board of Directors
shall be held at such times as the Board of Directors shall determine. If the
day fixed for the regular meeting is a legal holiday where the meeting is to be
held, then the meeting shall be held at the same hour on the next succeeding
business day. Except as otherwise provided by law, notices of regular meetings
need not be given.
 
     Section 10.  Special Meetings; Notice.  Special meetings of the Board of
Directors shall be held whenever called by the Chairman of the Board, the
Secretary, or a majority of the directors in office. Notice of each such meeting
shall be mailed, addressed to each director at the director's residence or usual
place of business, at least two (2) days before the day on which such meeting is
to be held or shall be sent to the director at the director's residence or usual
place of business by telegraph, cable, wireless or other form of recorded
communication or be delivered personally or by telephone not later than the day
before the day on which the special meeting is to be held. Each notice shall
state the time and place of the meeting but need not state the purpose thereof,
except as otherwise herein expressly provided. Notice of any meeting of the
Board of Directors need not, however, be given to any director, if the director
waives notice before or after the meeting in writing or by telegraph, cable,
wireless or other form of recorded communication, or if the director is present
at such meeting without protest. Any meeting of the Board of Directors shall be
a legal meeting, even if no notice has been given, if all the directors of the
Corporation are present at the meeting.
 
     Section 11.  Quorum and Manner of Acting.  Except as otherwise provided by
statute or by these By-laws, one-third of the total number of directors
constituting the whole Board (but not less than two) shall be required to
constitute a quorum for the transaction of business at any meeting, and the act
of a majority of the directors present at any meeting at which a quorum is
present shall be the act of the Board of Directors. Members of the Board of
Directors, or any committee designated by the Board, may participate in a
meeting of the Board or such committee by means of conference telephone or other
similar communications equipment by means of which all persons participating can
hear each other and participation in a meeting pursuant to this provision shall
constitute presence in person at such meeting. In the absence of a quorum, a
majority of the directors present may adjourn any meeting until a quorum is
present. Notice of any adjourned meeting need not be given.
 
     Section 12.  Action by Consent.  Unless otherwise restricted by the
Certificate of Incorporation or these By-laws, any action required or permitted
to be taken at any meeting of the Board of Directors may be taken without a
meeting if all members of the Board of Directors consent thereto in writing, and
the writing or writings are filed with the minutes of proceedings of the Board
of Directors.
 
     Section 13.  Remuneration.  Unless otherwise expressly provided by
resolution adopted by the Board of Directors, none of the directors shall, as
such, receive any stated remuneration for his or her service; but the Board of
Directors may at any time or from time to time by resolution provide that a
specified sum shall be paid to any director of the Corporation, either as his or
her annual remuneration as such director or member of any committee of the Board
of Directors and may, in addition, provide for remuneration for his or her
attendance at each meeting of the Board of Directors or any such committee. The
Board of Directors may also likewise provide that the Corporation shall
reimburse each director for any expenses paid by him or her on account of his or
her attendance at any meeting. Nothing in this Section contained shall be
construed to preclude any director from serving the Corporation or its
affiliates in any other capacity and receiving remuneration therefor.
 
                                  ARTICLE IV.
 
                                  COMMITTEES.
 
     Section 1.  Standing Committees: How Constituted and Powers.  The Board of
Directors may in its discretion, by resolution passed by a majority of the whole
Board, designate an Executive Committee, an Audit Committee, and a Compensation
Committee, consisting of two or more of the Directors. The members
 
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of all Committees shall serve at the pleasure of the Board and may be removed at
any time, with or without cause.
 
     Section 2.
 
     (a) The Executive Committee.  The Executive Committee shall have and may
exercise, when the Board is not in session, the power of the Board of Directors
in the management of the business and affairs of the Corporation, and shall have
the power to authorize the seal of the Corporation to be affixed to all papers
which may require it. The Executive Committee shall have the power and authority
to declare a dividend and authorize the issuance of stock. However, the
Executive Committee shall not have the power (1) to fill vacancies on the Board
of Directors or the Executive Committee; or (2) to make or amend or repeal
By-laws of the Corporation; or (3) to change the dividend policy of the
Corporation; to increase, decrease, or omit any dividend; or (4) to remove or
appoint any officer or director of the Corporation; or (5) to recommend to the
stockholders an amendment to the Certificate of Incorporation; or (6) to
recommend to the stockholders the authorization of new securities of the
Corporation; or (7) to recommend to the stockholders the sale, lease, or
exchange of all, or substantially all, of the Corporation's property and assets;
or (8) to approve any acquisition involving more than $10,000,000 in assets or
sales or purchase price; or (9) to recommend to the stockholders a dissolution
of the Corporation or a revocation of a dissolution; or (10) to adopt an
agreement of merger or consolidation under Section 251 or 252 of the Delaware
General Corporation Law.
 
     (b) The Audit Committee.  The Audit Committee shall (1) recommend the
principal auditors of the Corporation; (2) consult with the principal auditors
with regard to the plan of audit; (3) review the report of the audit and the
accompanying management letter; (4) consult with the principal auditors with
regard to the adequacy of internal controls; (5) consult with the Corporation's
internal auditors on the above matters, and (6) have such other duties and
responsibilities as may be delegated to it from time to time.
 
     (c) The Compensation Committee.  The Compensation Committee shall approve
and recommend to the Board of Directors (1) compensation arrangements; (2) the
adoption of any compensation plans in which officers and directors are eligible
to participate for senior management; (3) the granting of stock options or any
benefits under any such plans; and shall have (4) such other duties and
responsibilities as may be delegated to it from time to time. In connection with
the Corporation's stock option plans, the Compensation Committee shall have the
power to determine the terms and provisions of the respective stock option
agreements (which need not be identical) and to make all other determinations
necessary or advisable for the administration of such plans. The Compensation
Committee shall have the authority to determine the persons to whom, and the
time or times at which, options may be granted, the number of shares to be
subject to each, the price at which the shares subject thereto may be purchased,
the period of each option and other terms and conditions thereof; provided,
however, that the Compensation Committee shall not have authority to authorize
the issuance of stock of the Corporation.
 
     Section 3.  Organization, etc.  The Chairman of a Standing Committee,
selected by the members of the Board of Directors, shall act as chairman at all
the meetings of the Standing Committee and the Secretary shall act as secretary
thereof. In case the chairman or secretary of a Standing Committee is absent
from any meeting of a committee, the Committee may appoint a chairman or
secretary as the case may be, of the meeting.
 
     Section 4.  Meetings.  Regular meetings of the Standing Committees (of
which no notice shall be necessary) may be held on any day and at any place,
fixed by a resolution adopted by a majority of a Committee or of the Board and
communicated to all its members. Special meetings of a Committee shall be held
whenever called by the Chairman of a Standing Committee, the Chairman of the
Board, the Secretary, or a majority of the members of a Standing Committee then
in office. Notice of each special meeting of a Committee shall be given by mail,
telegraph, cable, or wireless or other form of recorded communication or be
delivered personally or by telephone to each member of the Committee no later
than the day before the day on which such meeting is to be held. Notice of any
such meeting need not be given to any member of the Committee, however, if
waived by the member in writing or by telegraph, cable, wireless, or other form
of recorded communication, or if he or she shall be present at such meeting
without protest. Any meeting of a Committee shall be a legal meeting without any
notice given, if all the members of the committee are present
 
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<PAGE>   210
 
at it. Subject to the provisions of this Article IV, a Committee, by resolution
adopted by a majority of the whole Committee, may fix its own rules or
procedures, and it shall keep a record of its procedures and report them to the
Board of Directors at its next regular meeting after such procedures shall have
been fixed. All such proceedings shall be subject to revision or alteration by
the Board of Directors; provided, however, that third parties shall not be
prejudiced by any such revisions or alterations.
 
     Section 5.  Quorum and Manner of Acting.  A majority of a Standing
Committee shall constitute a quorum for the transaction of business, and the act
of the majority of those present at a meeting thereof at which a quorum is
present shall be the act of a Committee.
 
     Section 6.  Other Committees.  The Board of Directors, by resolution passed
by the majority of the whole Board, may designate other Committees, each
Committee to consist of two or more members. Except as otherwise provided by
law, the Committees shall have and may exercise, to the extent provided by the
resolution, the powers of the Board in the management of the business and
affairs of the Corporation, and have the power to authorize the seal of the
Corporation to be affixed to all papers which require it. The Committees shall
have the names determined by the Board. Members of the Committees may
participate in meetings by conference call, or similar means as set forth in
Section 11 of Article III.
 
     Section 7.  Action by Consent.  Unless otherwise restricted by the
Certificate of Incorporation or these By-laws, any action required or permitted
to be taken at any meeting of a Standing or other Committee may be taken without
a meeting if all members of the Committee consent in writing. The writing must
then be filed with the minutes of the proceedings of the Committee.
 
     Section 8.  Reports.  Each Committee shall report all action taken by such
Committee to the Board at its next meeting.
 
                                   ARTICLE V.
 
                                   OFFICERS.
 
     Section 1.  Number.  The officers of the Corporation shall be a Chairman of
the Board, a President, one or more Executive Vice Presidents, one or more
Senior Vice Presidents, one or more Vice Presidents, a Secretary, a Treasurer, a
Controller, and, any other officers appointed pursuant to Section 3 of this
Article V. Any two or more offices, except those of President and Secretary, may
be held by the same person.
 
     Section 2.  Election, Term of Office and Qualifications.  The officers
shall be elected annually by the Board of Directors, and, except in the case of
officers appointed in accordance with the provisions of Section 3 of this
Article V, each shall hold office until the next annual election of officers and
until his or her successor has been duly elected and qualified, or until his or
her death, or until he or she shall resign or be removed.
 
     Section 3.  Other Officers.  The Corporation may have any other officers
and agents deemed necessary by the Board of Directors. The other officers and
agents shall be appointed in the manner, have the duties and hold their offices
for the terms determined by the Board of Directors. The Board of Directors may
delegate to any principal officer the power to appoint or remove any other
officers or agents.
 
     Section 4.  Resignations.  Any officer may resign at any time by giving
written notice of resignation to the Corporation. The resignation shall take
effect at the time specified or, if the time when it becomes effective is not
specified, then it shall take effect immediately upon its receipt by the
Secretary. Unless otherwise specified in the notice of resignation, the
acceptance of such is not necessary to make it effective.
 
     Section 5.  Removal.  Any officer may be removed, with or without cause, by
a vote of a majority of the whole Board of Directors at a regular meeting or a
special meeting called for the purpose.
 
     Section 6.  Vacancies.  A vacancy in any office because of death,
resignation, removal or any other cause shall be filled for the unexpired
portion of the term in the manner prescribed in these By-laws for election or
appointment to such office.
 
                                       I-7
<PAGE>   211
 
     Section 7.  The Chairman of the Board.  The Chairman of the Board (who
shall be a Director) shall be the Chief Executive Officer of the Corporation,
unless the Board otherwise directs, and shall preside at all meetings of
stockholders. The Chairman of the Board shall perform such other duties and may
exercise such other powers as from time to time may be assigned to him or her by
these By-laws or by the Board of Directors. In the absence of the President the
Chairman shall perform all of the duties and exercise all powers of the
President.
 
     Section 8.  The President.  The President, subject to the general control
of the Chairman of the Board, unless the Board otherwise directs, shall be the
Chief Operating Officer of the Corporation. The President shall supervise
generally the affairs of the Corporation and shall have all powers and perform
all duties incident to the office of a president and, unless the Board otherwise
directs, chief operating officer of a corporation and as provided in these
By-laws. The President shall exercise such other powers and perform such other
duties as may be assigned to him or her by the Board of Directors or the
Chairman of the Board.
 
     Section 9.  Executive Vice Presidents, Senior Vice Presidents and Vice
Presidents.  The Executive Vice Presidents, Senior Vice Presidents and Vice
Presidents shall perform such duties and may exercise such powers as from time
to time may be assigned to them by these By-laws, the Board of Directors, the
Chairman of the Board or the President.
 
     Section 10.  The Secretary and the Assistant Secretaries.  The Secretary
shall (1) record or cause to be recorded in books kept for the purpose, the
minutes of the meetings of the stockholders, the Board of Directors, the
Standing Committees, and all other committees of the Board of Directors, if any,
(2) see that all notices are duly given in accordance with the provisions of
these By-laws and as required by law, (3) be custodian of all corporate records
(other than financial) and of the seal of the Corporation and shall have the
power to cause the seal to be affixed to all documents which are duly authorized
to be executed on behalf of the Corporation, (4) keep the list of stockholders
including the post-office address of each stockholder, and make all proper
changes in the list retaining and filing his or her authority for all such
entries, or see that the books, reports, statements, certificates and all other
documents and records required by law are properly kept and filed, and (5) in
general, perform all duties incident to the office of Secretary and such other
duties as may, from time to time, be assigned to him or her by the Board of
Directors, the Chairman of the Board or the President.
 
     At the request of the Secretary, or in his or her absence or disability,
any Assistant Secretary shall perform any of the duties of the Secretary and,
when so acting, shall have all the powers of, and be subject to all the
restrictions upon, the Secretary. Except where by law the signature of the
Secretary is required, each of the Assistant Secretaries shall possess the same
power as the Secretary to sign certificates, contracts, obligations and other
instruments of the Corporation, and to affix the seal of the Corporation to such
instruments, and attest them.
 
     Section 11.  The Treasurer and the Assistant Treasurers.  The Treasurer
shall (1) have charge and custody of, and be responsible for, all funds and
securities of the Corporation, and shall deposit all such funds in the name of
the Corporation in the banks, trust companies or other depositaries selected in
accordance with the provisions of these By-laws, (2) render to the Board of
Directors, whenever the Board may require him or her so to do, and shall present
at the annual meeting of the stockholders, if called upon so to do, a report of
all his or her transactions as Treasurer, (3) in general, perform all duties
incident to the office of Treasurer and such other duties as may, from time to
time, be assigned to him or her by the Board of Directors, the Chairman of the
Board or the President.
 
     If required by the Board of Directors, the Treasurer shall give a bond for
the faithful discharge of his or her duties in such sum and with such surety or
sureties as the Board of Directors shall determine.
 
     At the request of the Treasurer, or in his or her absence or disability,
any Assistant Treasurer may perform any of the duties of the Treasurer and, when
so acting, shall have all the power of, and be subject to all the restrictions
upon, the Treasurer. Except where by law the signature of the Treasurer is
required, each of the Assistant Treasurers shall possess the same power as the
Treasurer to sign all certificates, contracts, obligations and other instruments
of the Corporation.
 
                                       I-8
<PAGE>   212
 
     Section 12.  The Controller.  The Controller shall be the chief accounting
officer of the Corporation, and as such shall be in charge of all internal
audits and accounting procedures and records. The Controller shall render to the
Board of Directors, whenever he or she deems it appropriate or whenever the
Board may require him or her so to do, appropriate financial or other reports as
to the Corporation.
 
     Section 13.  Salaries.  The salaries of the Chairman of the Board, the
Chief Executive Officer and the President shall be fixed from time to time by
the Board of Directors. The salaries of the other officers shall be fixed from
time to time by the Chief Executive Officer after consultation with the
Compensation Committee. The salaries of any officers appointed by a principal
officer pursuant to Section 3 of this Article V shall be fixed from time to time
by the principal officer appointing such officers. No officer shall be prevented
from receiving such salary by reason of the fact that he or she is also a
director of the Corporation.
 
                                  ARTICLE VI.
 
                     CONTRACTS, CHECKS, LOANS AND DEPOSITS.
 
     Section 1.  Contracts, Checks, etc.  All contracts and agreements
authorized by the Board of Directors, and all checks, drafts, bills of exchange
or other orders for the payment of money, notes, or other evidences of
indebtedness issued in the name of the Corporation, shall be signed by the
officer(s) or agent(s) designated by the Board of Directors. The designation may
be general or confined to specific instances.
 
     Section 2.  Proxies in Respect of Securities of Other Corporations.  Unless
otherwise provided by resolution adopted by the Board of Directors, the Chairman
of the Board, the President or a Vice President may appoint an attorney(s) or
agent(s) to exercise in the name and on behalf of the Corporation the powers and
rights of the Corporation as the holder of stock or other securities in any
other corporation, to vote or to consent in respect of such stock or other
securities. The Chairman of the Board, the President or a Vice President may
instruct the person(s) so appointed as to the manner of exercising such powers
and rights and the Chairman of the Board or the President may execute all such
written proxies, powers of attorney or other written instruments as he or she
may deem necessary for the Corporation to exercise such powers and rights.
 
                                  ARTICLE VII.
 
                   CERTIFICATES OF STOCK, BOOKS AND RECORDS.
 
     Section 1.  Form, Signature.  The certificates of stock of the Corporation
shall be numbered and shall be entered in the books of the Corporation as they
are issued. They shall exhibit the holder's name and number of shares and shall
be signed by the Chairman of the Board, the President or a Vice President and
the Secretary or an Assistant Secretary. Any or all such signatures on the
certificate may be a facsimile. If any officer of the Corporation who has
signed, or whose facsimile signature has been placed upon such certificate
ceases to be such before such certificate has been issued, the certificate may
nevertheless be issued by the Corporation with the same effect as though such
person were such officer at the date of issuance.
 
     Section 2.  Transfer.  Transfers of stock shall be made on the books of the
Corporation only by the person named in the certificate or by attorney lawfully
constituted in writing, and upon surrender of the certificate therefor.
 
     Section 3.  Closing of Transfer Books.  The Board of Directors may close
the transfer books in their discretion for a period not exceeding thirty days
preceding any meeting of the stockholders, or the day appointed for the payment
of a dividend.
 
     Section 4.  Record Owner.  The Corporation shall be entitled to treat the
holder of record of any share or shares of stock as the holder in fact and
accordingly shall not be bound to recognize any equitable or other claim to or
interest in the share on the part of any other person, whether or not the
Corporation has express or other notice of it, except as expressly provided by
the laws of Delaware.
 
     Section 5.  Lost Certificates.  Any person claiming a certificate of stock
to be lost, stolen or destroyed shall make an affidavit or affirmation of that
fact in form satisfactory to the Corporation and shall if the officers
 
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<PAGE>   213
 
so require give the Corporation a bond of indemnity, in form and with one or
more sureties satisfactory to the officers, in an amount which in the sole
discretion of the officers is sufficient to indemnify the Corporation against
any claim that may be made against it on account of the alleged loss, theft or
destruction, or the issuance of a new certificate, whereupon a new certificate
may be issued of the same tenor and for the same number of shares as the one
alleged to be lost, stolen or destroyed.
 
     Section 6.  Books and Records.  The books and records of the Corporation
may be kept at such places within or without the State of Delaware as the Board
of Directors may determine.
 
     Section 7.  Fixing Date for Determination of Stockholders of Record.  In
order that the Corporation may determine the identity of the stockholders
entitled to notice of or to vote at any meeting of stockholders or any
adjournment, or entitled to receive payment of any dividend or other
distribution or allotment of any rights, or entitled to exercise any rights in
respect of any other change, conversion or exchange of stock or for any other
purpose, the Board of Directors may fix, in advance, a record date, which shall
not be more than sixty (60) days nor less than ten (10) days before the date of
such meeting, nor more than sixty (60) days prior to any other action. If, in
any case involving the determination of stockholders for any purpose other than
notice of or voting at a meeting of stockholders a record date is not fixed, the
record date for determining stockholders for such purpose shall be the close of
business on the day on which the Board of Directors shall adopt the resolution.
A determination of stockholders entitled to notice of or to vote at a meeting of
stockholders shall apply to any adjournment of the meeting; provided, however,
that the Board of Directors may fix a new record date for the adjourned meeting.
 
                                 ARTICLE VIII.
 
                                   DIVIDENDS.
 
     Subject to the provisions of law and of the Certificate of Incorporation,
the Board of Directors or the Executive Committee, at any regular or special
meeting, may declare and pay dividends upon a share of stock either (a) out of
its surplus as defined in and computed in accordance with the provisions of law
or (b) in case it shall not have any such surplus, out of its net profits for
the fiscal year in which the dividend is declared and/or the preceding fiscal
year, whenever and in the amount advisable depending on the Board of Directors'
or the Executive Committee's, as the case may be, opinion of the condition of
the Corporation.
 
     Before payment of any dividend or making any distribution of profits, the
Board of Directors or Executive Committee in its sole discretion may set aside
out of the surplus or net profits of the Corporation a sum as a reserve fund to
meet contingencies, or to equalize dividends, or to repair or maintain any
property of the Corporation, or for any other purpose the directors think
conducive to the interests of the Corporation.
 
                                  ARTICLE IX.
 
                                     SEAL.
 
     The corporate seal shall bear the name of the Corporation, the year in
which the Corporation was incorporated (1968) and the words "CORPORATE
SEAL -- DELAWARE."
 
                                   ARTICLE X.
 
                                  FISCAL YEAR.
 
     The fiscal year of the Corporation shall end on the thirty-first day of
December in each year.
 
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<PAGE>   214
 
                                  ARTICLE XI.
 
                                INDEMNIFICATION.
 
     Section 1.  Action, etc. Other Than by or in the Right of the
Corporation.  The Corporation shall indemnify any person who was or is a party
or is threatened to be made a party to any threatened, pending or completed
action, suit or proceeding, whether civil, criminal, administrative or
investigative (other than an action by or in the right of the Corporation) by
reason of the fact that he or she, or a person of whom he or she was or is the
legal representative, is or was a director, officer, employee, agent or member
of a management committee of the Corporation, or is or was serving at the
request of the Corporation as a director, officer, employee, agent or member of
a management committee of another corporation, partnership, joint venture, trust
or other enterprise, including service with respect to employee benefit plans.
The indemnification shall be against charges, expenses (including attorneys'
fees), judgments, liabilities, ERISA excise taxes, fines, penalties and amounts
paid in settlement actually and reasonably incurred by him or her in connection
with such action, suit or proceeding if he or she acted in good faith and in a
manner he or she reasonably believed to be in or not opposed to the best
interests of the Corporation, and, with respect to any criminal action or
proceeding, had no reasonable cause to believe his or her conduct was unlawful.
The termination of any action, suit or proceeding by judgment, order,
settlement, conviction, or upon a plea of nolo contendere or its equivalent,
shall not, of itself, create a presumption that the person did not act in good
faith and in a manner which he or she reasonably believed to be in or not
opposed to the best interests of the Corporation, and, with respect to any
criminal action or proceeding, that he or she had reasonable cause to believe
that his or her conduct was unlawful.
 
     Section 2.  Actions, etc. by or in the Right of the Corporation.  The
Corporation shall indemnify any person who was or is a party or is threatened to
be made a party to any threatened, pending or completed action or suit by or in
the right of the Corporation to procure a judgment in its favor by reason of the
fact that he or she is or was a director, officer, employee or agent of the
Corporation, or is or was serving at the request of the Corporation as a
director, officer, employee, or agent of another corporation, partnership, joint
venture, trust or other enterprise against expenses (including attorneys' fees)
actually and reasonably incurred by him or her in connection with the defense or
settlement of such action or suit if he or she acted in good faith and in a
manner he or she reasonably believed to be in or not opposed to the best
interests of the Corporation. However, no indemnification shall be made in
respect of any claim, issue or matter as to which such person shall have been
adjudged to be liable to the Corporation unless and only to the extent that the
Court of Chancery or the court in which such action or suit was brought shall
determine upon application that, despite the adjudication of liability but in
view of all the circumstances of the case, such person is fairly and reasonably
entitled to indemnity for such expenses which the Court of Chancery or such
other court shall deem proper.
 
     Section 3.  Determination of Right to Indemnification.  Any indemnification
under Section 1 or 2 of this Article (unless ordered by a court) shall be made
by the Corporation only as authorized in the specific case upon a determination
that indemnification of the director, officer, employee or agent is proper in
the circumstances because he or she has met the applicable standard of conduct
set forth in Section 1 or 2 of this Article. This determination shall be made
(i) by the Board of Directors by a majority vote of a quorum consisting of
directors who were not parties to such action, suit or proceeding, or (ii) if
such a quorum is not obtainable, or, even if obtainable and a quorum of
disinterested directors so directs, by independent legal counsel in a written
opinion, or (iii) by the stockholders.
 
     Section 4.  Right to Indemnification.  Notwithstanding the other provisions
of this Article, to the extent that a director, officer, employee or agent of
the Corporation has been successful on the merits or otherwise in defense of any
action, suit or proceeding referred to in Section 1 or 2 of this Article, or in
defense of any claim, issue or matter therein, he or she shall be indemnified
against expenses (including attorneys' fees) actually and reasonably incurred by
him or her in connection therewith.
 
     Section 5.  Prepaid Expenses.  Expenses (including attorneys' fees)
incurred by an officer or director in defending a civil, criminal,
administrative or investigative action, suit or proceeding may be paid by the
Corporation in advance of the final disposition of such action, suit or
proceeding upon receipt of an
 
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<PAGE>   215
 
undertaking by or on behalf of the director or officer to repay such amount if
it shall ultimately be determined that he or she is not entitled to be
indemnified by the Corporation as authorized in this Article.
 
     Section 6.  Other Rights and Remedies.  The indemnification and advancement
of expenses provided by, or granted pursuant to, the other subsections of this
Article shall not be deemed exclusive of any other rights to which any person
seeking indemnification or advancement of expenses may be entitled under any By-
laws, agreement, vote of stockholders or disinterested directors or otherwise,
both as to action in his or her official capacity and as to action in another
capacity while holding such office.
 
     Section 7.  Continuation of Rights.  The indemnification and advancement of
expenses provided by, or granted pursuant to, this Article shall, unless
otherwise provided when authorized or ratified, continue as to a person who has
ceased to be a director, officer, employee or agent and shall inure to the
benefit of the heirs, executors and administrators of such a person.
 
     Section 8.  Insurance.  Upon resolution passed by the Board of Directors,
the Corporation may purchase and maintain insurance on behalf of any person who
is or was a director, officer, employee or agent of the Corporation, or is or
was serving at the request of the Corporation as a director, officer, employee
or agent of another corporation, partnership, joint venture, trust or other
enterprise against any liability asserted against him or her and incurred in any
such capacity, or arising out of his or her status as such, whether or not the
Corporation would have the power to indemnify him or her against the liability
under the provisions of this Article.
 
     Section 9.  Expenses as a Witness.  To the extent any director, officer,
employee, member of a management committee or agent of the Corporation is by
reason of such position, or a position with another entity at the request of the
Corporation, a witness in any action, suit or proceeding, he shall be
indemnified against all costs and expenses actually and reasonably incurred by
him or her on his or her behalf in connection therewith.
 
                                  ARTICLE XII.
 
                                  AMENDMENTS.
 
     All By-laws of the Corporation shall be subject to alteration or repeal,
and new By-laws may be made, by the stockholders at any annual or special
meeting, or, except as otherwise provided by the Certificate of Incorporation,
these By-laws or by law, by the affirmative vote of a majority of the directors
then in office given at any regular or special meeting of the Board of
Directors.
 
                                      I-12
<PAGE>   216
 
                                   EXHIBIT L
<PAGE>   217
 
                                                                       EXHIBIT L
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                           LONE STAR INDUSTRIES, INC.
 
                                      AND
 
                                                     BANK
 
                                       AS
 
                                    TRUSTEE
 
                            ------------------------
 
                                   INDENTURE
                       DATED AS OF                , 1993
 
                            ------------------------
 
                                  $75,000,000
 
                           10% SENIOR NOTES DUE 2003
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   218
 
                               TABLE OF CONTENTS
 
<TABLE>
<S>                   <C>                                                              <C>
ARTICLE 1.  DEFINITIONS AND INCORPORATION BY REFERENCE...............................    L-1
     SECTION 1.01     Definitions....................................................    L-1
     SECTION 1.02     Incorporation by Reference of Trust Indenture Act..............    L-7
     SECTION 1.03     Rules of Construction..........................................    L-7
ARTICLE 2.  THE SECURITIES...........................................................    L-8
     SECTION 2.01     Form and Dating................................................    L-8
     SECTION 2.02     Execution and Authentication...................................    L-8
     SECTION 2.03     Registrar and Paying Agent.....................................    L-8
     SECTION 2.04     Paying Agent to Hold Money in Trust............................    L-9
     SECTION 2.05     Securityholder Lists...........................................    L-9
     SECTION 2.06     Transfer and Exchange..........................................    L-9
     SECTION 2.07     Replacement Securities.........................................    L-9
     SECTION 2.08     Outstanding Securities.........................................   L-10
     SECTION 2.09     Securities Held by the Company or an Affiliate.................   L-10
     SECTION 2.10     Temporary Securities...........................................   L-10
     SECTION 2.11     Cancellation...................................................   L-10
     SECTION 2.12     Defaulted Interest.............................................   L-10
ARTICLE 3.  REDEMPTION...............................................................   L-11
     SECTION 3.01     Notices to Trustee.............................................   L-11
     SECTION 3.02     Selection of Securities to be Redeemed.........................   L-11
     SECTION 3.03     Notice of Redemption...........................................   L-11
     SECTION 3.04     Effect of Notice of Redemption.................................   L-11
     SECTION 3.05     Deposit of Redemption Price....................................   L-12
     SECTION 3.06     Securities Redeemed in Part....................................   L-12
     SECTION 3.07     Optional Redemption............................................   L-12
     SECTION 3.08     Mandatory Redemption Upon Sale of Assets.......................   L-12
     SECTION 3.09     Sinking Fund Payments..........................................   L-12
ARTICLE 4.  COVENANTS................................................................   L-13
     SECTION 4.01     Payment of Securities..........................................   L-13
     SECTION 4.02     Maintenance of Office or Agency................................   L-13
     SECTION 4.03     Corporate Existence............................................   L-13
     SECTION 4.04     Payment of Taxes...............................................   L-13
     SECTION 4.05     Maintenance of Properties......................................   L-14
     SECTION 4.06     SEC Reports....................................................   L-14
     SECTION 4.07     Compliance Certificate.........................................   L-14
     SECTION 4.08     Restricted Investments and Restricted Stock Payments...........   L-14
     SECTION 4.09     Transactions with Affiliates...................................   L-16
     SECTION 4.10     Limitation on Total Borrowed Funds and Liens...................   L-16
     SECTION 4.11     Conflicting Agreements.........................................   L-16
</TABLE>
 
                                        i
<PAGE>   219
 
<TABLE>
<S>                   <C>                                                              <C>
     SECTION 4.12     Limitation on Dividends and Certain Other Restrictions
                      Affecting Subsidiaries.........................................   L-17
     SECTION 4.13     Limitation on Restricted Subsidiary Indebtedness...............   L-17
     SECTION 4.14     Restricted Subsidiaries........................................   L-17
     SECTION 4.15     Waiver of Stay, Extension or Usury Laws........................   L-18
     SECTION 4.16     Maintenance of Insurance and Records, Compliance with Law......   L-18
     SECTION 4.17     Limitation on Redemption of Certain Permitted
                      Subordinated Indebtedness......................................   L-19
     SECTION 4.18     Value of Claims Represented by Securities......................   L-19
     SECTION 4.19     Investment Company Act of 1940.................................   L-19
     SECTION 4.20     Notice of Default..............................................   L-19
ARTICLE 5.  SUCCESSORS...............................................................   L-19
     SECTION 5.01     When Company May Merge, Etc. ..................................   L-19
     SECTION 5.02     Successor Substituted..........................................   L-20
ARTICLE 6.  DEFAULTS AND REMEDIES....................................................   L-20
     SECTION 6.01     Events of Default..............................................   L-20
     SECTION 6.02     Acceleration...................................................   L-21
     SECTION 6.03     Other Remedies.................................................   L-22
     SECTION 6.04     Waiver of Past Defaults........................................   L-22
     SECTION 6.05     Control by Majority............................................   L-22
     SECTION 6.06     Limitation on Suits............................................   L-22
     SECTION 6.07     Rights of Holders to Receive Payment...........................   L-23
     SECTION 6.08     Collection Suit by Trustee.....................................   L-23
     SECTION 6.09     Trustee May File Proofs of Claims..............................   L-23
     SECTION 6.10     Priorities.....................................................   L-23
     SECTION 6.11     Undertaking for Costs..........................................   L-23
ARTICLE 7.  TRUSTEE..................................................................   L-24
     SECTION 7.01     Acceptance of Trusts; Duties of Trustee........................   L-24
     SECTION 7.02     Rights of Trustee..............................................   L-24
     SECTION 7.03     Individual Rights of Trustee...................................   L-25
     SECTION 7.04     Trustee's Disclaimer...........................................   L-25
     SECTION 7.05     Notice of Defaults.............................................   L-25
     SECTION 7.06     Reports by Trustee to Holders..................................   L-25
     SECTION 7.07     Compensation and Indemnity.....................................   L-25
     SECTION 7.08     Replacement of Trustee.........................................   L-25
     SECTION 7.09     Successor Trustee by Merger, etc. .............................   L-26
     SECTION 7.10     Eligibility; Disqualification..................................   L-26
     SECTION 7.11     Preferential Collection of Claims Against Company..............   L-26
ARTICLE 8.  DISCHARGE OF INDENTURE...................................................   L-27
     SECTION 8.01     Termination of Company's Obligations...........................   L-27
     SECTION 8.02     Application of Trust Money.....................................   L-27
</TABLE>
 
                                       ii
<PAGE>   220
 
<TABLE>
<S>                   <C>                                                              <C>
     SECTION 8.03     Replacement to Company.........................................   L-27
     SECTION 8.04     Reinstatement..................................................   L-28
ARTICLE 9.  AMENDMENTS...............................................................   L-28
     SECTION 9.01     Without Consent of Holders.....................................   L-28
     SECTION 9.02     With Consent of Holders........................................   L-28
     SECTION 9.03     Compliance with Trust Indenture Act............................   L-29
     SECTION 9.04     Revocation and Effect of Consents..............................   L-29
     SECTION 9.05     Notation on or Exchange of Securities..........................   L-29
     SECTION 9.06     Trustee Protected..............................................   L-29
ARTICLE 10.  GUARANTEE...............................................................   L-29
     SECTION 10.01    Guarantee......................................................   L-29
     SECTION 10.02    Further Assurances.............................................   L-30
     SECTION 10.03    Authorization of Actions to be taken by the Trustee Under the
                      Guarantee......................................................   L-30
     SECTION 10.04    Authorization of Receipt of Funds by the Trustee Under the
                      Guarantee......................................................   L-30
     SECTION 10.05    Termination of Guarantee.......................................   L-30
ARTICLE 11.  MISCELLANEOUS...........................................................   L-30
     SECTION 11.01    Trust Indenture Act Controls...................................   L-30
     SECTION 11.02    Notices........................................................   L-30
     SECTION 11.03    Communication by Holders with Other Holders....................   L-31
     SECTION 11.04    Action by Securityholders......................................   L-31
     SECTION 11.05    Proof of Execution of Instruments and of Holding of
                      Securities.....................................................   L-31
     SECTION 11.06    Revocation of Consents; Future Holders Bound...................   L-32
     SECTION 11.07    Obligation to Disclose Beneficial Ownership of Securities......   L-32
     SECTION 11.08    Certificate and Opinion as to Conditions Precedent.............   L-32
     SECTION 11.09    Statements Required in Certificate or Opinion..................   L-32
     SECTION 11.10    Rules by Trustee and Agents....................................   L-33
     SECTION 11.11    Legal Holidays.................................................   L-33
     SECTION 11.12    No Recourse Against Others.....................................   L-33
     SECTION 11.13    Duplicate Originals............................................   L-33
     SECTION 11.14    Governing Law..................................................   L-33
     SECTION 11.15    No Adverse Interpretation of Other Agreements..................   L-33
     SECTION 11.16    Successors.....................................................   L-33
     SECTION 11.17    Separability...................................................   L-33
     SECTION 11.18    Table of Contents, Headings, etc. .............................   L-33
ARTICLE 12.  MEETINGS OF HOLDERS OF SECURITIES.......................................   L-34
     SECTION 12.01    Purposes of Meetings...........................................   L-34
     SECTION 12.02    Call of Meetings by Trustee....................................   L-34
     SECTION 12.03    Call of Meetings by Company or Security Holders................   L-34
     SECTION 12.04    Persons Entitled to Vote at Meeting............................   L-34
     SECTION 12.05    Regulations for Meeting........................................   L-34
</TABLE>
 
                                       iii
<PAGE>   221
 
                             CROSS-REFERENCE TABLE
 
<TABLE>
<CAPTION>
                                     TIA                                          INDENTURE
                                   SECTION                                         SECTION
- -----------------------------------------------------------------------------  ---------------
<S>                                                                            <C>
310(a)(1)....................................................................       7.10
   (a)(2)....................................................................       7.10
   (a)(3)....................................................................  Not Applicable
   (a)(4)....................................................................  Not Applicable
   (b).......................................................................    7.08; 7.10
   (c).......................................................................  Not Applicable
311(a).......................................................................       7.11
   (b).......................................................................       7.11
   (c).......................................................................  Not Applicable
312(a).......................................................................       2.05
   (b).......................................................................       11.03
   (c).......................................................................       11.03
313(a).......................................................................       7.06
   (b)(1)....................................................................       7.06
   (b)(2)....................................................................       7.06
   (c).......................................................................       7.06
   (d).......................................................................       7.06
314(a).......................................................................     406; 407
   (b).......................................................................       10.02
   (c)(1)....................................................................       11.08
   (c)(2)....................................................................       11.08
   (c)(3)....................................................................  Not Applicable
   (d).......................................................................       10.02
   (e).......................................................................       11.09
   (f).......................................................................  Not Applicable
315(a).......................................................................       7.01
   (b).......................................................................       7.05
   (c).......................................................................       7.01
   (d).......................................................................       7.01
   (e).......................................................................       6.11
316(a)(last sentence)........................................................       2.09
   (a)(1)(A).................................................................       6.05
   (a)(1)(B).................................................................       6.04
   (a)(2)....................................................................  Not Applicable
   (b).......................................................................       6.07
317(a)(1)....................................................................       6.08
   (a)(2)....................................................................       6.09
   (b).......................................................................       2.04
318(a).......................................................................       11.01
</TABLE>
 
- ---------------
This cross-reference tables does not constitute a part of the Indenture.
<PAGE>   222
 
     INDENTURE dated as of           , 1993 between LONE STAR INDUSTRIES, INC.,
a Delaware corporation (the "Company"), and        Bank, a national banking
association (the "Trustee").
 
     Each party agrees as follows for the benefit of the other party and for the
equal and ratable benefit of the Holders of the Company's 10% Senior Notes due
2003 (the "Securities").
 
                                   ARTICLE 1.
 
                   DEFINITIONS AND INCORPORATION BY REFERENCE
 
SECTION 1.01  DEFINITIONS.
 
     "Actual Knowledge" has the meaning assigned to such term in Section 6.01
hereof.
 
     "Affiliate" means any Person directly or indirectly controlling or
controlled by or under common control with the Company; provided, however, that
the term Affiliate shall not include any Subsidiary of the Company. For this
purpose, "control" means possession, directly or indirectly, of the power to
direct or cause the direction of the management or policies of a Person, whether
through the ownership of voting securities, by contract or otherwise.
 
     "Agent" means any Registrar, Paying Agent or Co-Registrar.
 
     "Bankruptcy Law" has the meaning assigned to such term in Section 6.01
hereof.
 
     "Board of Directors" means the Board of Directors of the Company or any
committee of the Board authorized to act for it hereunder.
 
     "Business Day" has the meaning assigned to such term in Section 11.11
hereof.
 
     "Capitalized Lease" means, at the time any determination thereof is to be
made, any lease of property, real or personal, in respect of which the present
value of the minimum rental commitment would be capitalized on a balance sheet
of the lessee in accordance with generally accepted accounting principles.
 
     "Capitalized Rent" under any Capitalized Lease shall mean, at any time as
of which the amount thereof is to be determined, the lesser of (i) 10 times the
amount of the maximum net rent payable under such lease during any period of 12
consecutive months subsequent to the date as of which the rental obligation is
to be determined, or (ii) the aggregate amount of net rent payable over the
remaining period of the lease. The net rent payable under any lease for any
period shall be the total amount of the rent payable by the lessee with respect
to such period but shall not include amounts required to be paid on account of
maintenance and repairs, insurance, taxes, assessments, water rates and similar
charges. The amount to be included in net rent for any given period with respect
to any portion thereof which may be a variable shall be such amount as the
Company shall in good faith determine is reasonably to be expected to be due as
a result of such variable. The remaining period of any lease shall be the period
from the date of determination to the earlier of the expiration of the lease by
its terms or the date on which the lessee has a right to terminate the lease,
provided that if payments are required to be made by the lessee in connection
with the termination of such lease, the amount of such payments shall be deemed
to be net rent.
 
     "Capital Stock" means any stock of any class of a corporation.
 
     "Common Stock" means the common stock, par value $1.00 per share, of the
Company or any security into which the common stock may be converted.
 
     "Company" means the party named as such above until a successor replaces it
pursuant to the applicable provision hereof, and thereafter means such
successor.
 
     "Computation Date" shall have the meaning assigned to such term in Section
4.08 hereof.
 
     "Consolidated Net Income" means net income of the Company, and its
Restricted Subsidiaries, all as consolidated and determined in accordance with
generally accepted accounting principles; provided, however, that (i) there
shall not be included in Consolidated Net Income any undistributed earnings of
an Unrestricted
 
                                       L-1
<PAGE>   223
 
Subsidiary, and (ii) in case an Unrestricted Subsidiary shall be designated as a
Restricted Subsidiary), the net income of such Subsidiary for the period
commencing December 31, 1993 or the date such Subsidiary became a Restricted
Subsidiary, whichever is later, shall be included in the consolidation in so
determining Consolidated Net Income.
 
     "Consolidated Retained Earnings" shall mean the Retained Earnings of the
Company and its Restricted Subsidiaries, determined on a consolidated basis in
accordance with generally accepted accounting principles; provided, however,
that there shall not be included in Consolidated Retained Earnings any
undistributed earnings of an Unrestricted Subsidiary.
 
     "Corporate Trust Office of the Trustee" shall be at the address of the
Trustee specified in Section 11.02 or such other address as the Trustee may give
notice of to the Company.
 
     "Custodian" has the meaning assigned to such term in Section 6.01 hereof.
 
     "Default" means any event which is, or after notice or passage of time or
both would be, an Event of Default.
 
     "Effective Date" has the meaning assigned in the Plan of Reorganization.
 
     "Event of Default" has the meaning assigned to such term in Section 6.01
hereof.
 
     "Exchange Act" means the Securities Exchange Act of 1934, as amended, and
the rules and regulations of the SEC promulgated thereunder.
 
     "Excepted Lease" shall mean (i) any lease expiring not later than the third
anniversary of its inception, (ii) any lease of, or of space in, any office
building or storage facility, (iii) any lease of real property upon which any
office building or storage facility is or is to be constructed, (iv) any lease
existing on the Effective Date and renewals or extensions thereof and (v) any
lease from the Company or any Restricted Subsidiary to the Company or any
Restricted Subsidiary.
 
     "Fair Value" means fair market value as determined in good faith by the
Board of Directors.
 
     "Guarantee" means the Guarantee of even date with this Indenture made for
the benefit of the Securityholders by certain Affiliates of the Company as the
same may be amended, modified or supplemented from time to time.
 
     "GAAP" means generally accepted accounting principles in effect from time
to time.
 
     "Holder" or "Securityholder" means a Person in whose name a Security is
registered on the Registrar's books.
 
     "Indebtedness" of any Person shall mean, without duplication, (a) all
indebtedness for money borrowed, created, incurred or assumed by such Person or
guaranteed by such Person or for which it is otherwise liable or responsible
(such as by agreement to purchase indebtedness of others), (b) all amounts owing
by such Person under Purchase Money Indebtedness or other purchase money liens
or conditional sales or other title retention agreements, (c) all indebtedness
secured by any mortgage, pledge or other lien or encumbrance upon property owned
by such Person, even though such Person has not assumed or become liable for the
payment of such indebtedness, and (d) all Capitalized Rent for all rental
obligations on any Capitalized Lease for real property (other than Excepted
Leases); provided, however,that in determining the Indebtedness of any Person,
there shall be excluded (i) any obligations arising from Production Payment
Transactions, (ii) in the case of the Company, the Guarantee Agreement dated of
even date herewith between the Company, and                               Bank,
as Trustee, and the obligation on any Notes hereafter issued thereunder and
(iii) any particular indebtedness if, upon or prior to the maturity thereof,
there shall have been deposited with the proper depository in trust money (or
evidences of such indebtedness if permitted by the instrument creating such
indebtedness) in the necessary amount to pay, redeem or satisfy such
indebtedness, and thereafter such money and evidences of indebtedness so
deposited shall not be included in any computation of the assets of such Person.
 
     "Indenture" means this Indenture as amended from time to time.
 
                                       L-2
<PAGE>   224
 
     "Legal Holiday" has the meaning assigned to such term in Section 11.11
hereof.
 
     "Lien" means, with respect to any asset, any mortgage, lien, pledge,
charge, security interest or similar encumbrance in respect of such asset,
whether or not filed, recorded or otherwise perfected under applicable law
(including any conditional sale or other title retention agreement, any
Capitalized Lease in the nature thereof, and any filing of or agreement to give
any financing statement under the Uniform Commercial Code or equivalent statutes
of any jurisdiction other than an information filing), but does not include, in
the case of the Company and its Restricted Subsidiaries, the lien granted to the
Trustee under Section 7.07 hereof.
 
     "Maturity Date" of the Securities means July 31, 2003.
 
     "Net Proceeds" with respect to any Sale of Assets, means the cash (in U.S.
dollars or currency freely convertible into U.S. dollars) received by the
Company or any of its Restricted Subsidiaries from such Sale of Assets after (i)
provision for all income or other taxes measured by or resulting from such sale
or other disposition or the transfer of the proceeds thereof to the Company that
are payable by the Company or any of its Subsidiaries, (as reasonably and in
good faith estimated by the Chief Financial Officer of the Company or such
Subsidiary), (ii) payment of all brokerage commissions, legal and accounting
fees and expenses and other fees and expenses related to such sale or other
disposition, (iii) deduction of any amounts received by any Subsidiary that are
not legally available for direct or indirect distribution or loan to the
Company, (iv) deduction of any amounts required to be paid to the lender
pursuant to any Permitted Working Capital Loans upon such Sale of Assets, (v)
deduction of amounts provided by the Company or its Subsidiaries as a reserve on
its regularly prepared balance sheets, in accordance with generally accepted
accounting principles consistently applied (including, without limitation,
subject to the next succeeding sentence, all amounts escrowed, pledged or
otherwise set aside to assume payment of such liabilities), against any
liabilities associated with the assets sold in such Sale of Assets and retained
by the Company or its Subsidiaries, including, without limitation, pension and
other postemployment benefit liabilities and liabilities related to
environmental matters, or against any indemnification obligations associated
with the sale or other disposition, (vi) deduction of amounts set aside in good
faith for the acquisition or improvement of assets as contemplated by clause
(vii) of the definition of "Sale of Assets," and (vii) deduction of any amounts
required to discharge any Liens on the assets sold, leased, conveyed or
otherwise disposed of. Net Proceeds (i) shall not include any proceeds from the
sale of                     pursuant to the Plan of Reorganization, but (ii)
shall include, when received in cash, any Net Proceeds from the sale or other
disposition of any non-cash proceeds received by the Company or any of its
Subsidiaries from a Sale of Assets and (iii) shall include, when received in
cash, any Net Proceeds released from escrow, pledge or other set aside and
amounts no longer reserved or appropriate to be set aside as described in
clauses (v) or (vi), respectively, of the immediately preceding sentence.
 
     "Officer" means the Chairman of the Board, the President, any Senior
Vice-President, Executive Vice-President or any other Vice-President, the
Treasurer or the Secretary of the Company.
 
     "Officer's Certificate" means a certificate signed by any Officer of the
Company.
 
     "Opinion of Counsel" means a written opinion from legal counsel, who may be
an employee of or counsel for the Company or other counsel reasonably acceptable
to the Trustee.
 
     "Paying Agent" has the meaning assigned to such term in Section 2.03
hereof.
 
     "Permitted Acquisitions" means acquisitions approved the Board of Directors
(including by way of merger or consolidation) of all or substantially all of the
stock or assets of any Person or any division or line of business, provided that
neither the Company nor any Subsidiary of the Company (other than the acquired
Person and its Subsidiaries) has any liability, contingent or otherwise, for the
payment of any deferred portion of the purchase price therefor, other than
Purchase Money Indebtedness, or for any Indebtedness, obligation or liability,
contingent or otherwise, of the acquired Person, division or line of business
other than any such liability, contingent or otherwise, which the Company could
incur without violation of this Agreement.
 
     "Permitted Liens" means (i) Liens which may be granted from time to time to
secure and/or maintain Permitted Working Capital Loans; (ii) Liens provided for
in the Plan of Reorganization or existing on the
 
                                       L-3
<PAGE>   225
 
Effective Date or thereafter created to replace such Liens; (iii) Liens in favor
of the Trustee on all property and funds held or collected by the Trustee as
security for the performance by the Company of its obligations of payment to,
and reimbursement and indemnification of, the Trustee for its services under the
Indenture; (iv) Liens for taxes or assessments and similar charges, or imposed
in connection with litigation or asserted claims, either not delinquent or
contested in good faith by appropriate proceedings and as to which the Company
or a Subsidiary shall have set aside on its books such reserves as it deems
adequate; (v) Liens incurred, or pledges and deposits made, in connection with
workers' compensation, unemployment insurance and other social security
benefits, or securing the performance of leases, contracts (other than for the
repayment of borrowed money), statutory obligations, progress payments, surety
and appeal bonds and other obligations of like nature, but only to the extent
any of the foregoing are incurred in good faith in the ordinary course of
business; (vi) Liens imposed by law, such as mechanics', carriers',
warehousemen's, materialmen's and vendors' Liens, incurred in good faith in the
ordinary course of business; (vii) zoning restrictions, easements, licenses,
covenants, reservations, restrictions on the use of real property or
irregularities of title incident thereto that do not in the aggregate materially
detract from the value of the property or assets of the Company or any of its
Subsidiaries, as the case may be, or materially impair the use of such property
in the operation of the Company's or any Subsidiary's business; (viii) Liens
created by Subsidiaries of the Company to secure Indebtedness of such
Subsidiaries to the Company or to other Subsidiaries thereof; (ix) any Lien on
any asset acquired pursuant to any Permitted Acquisition or on the Capital Stock
or other securities of any Unrestricted Subsidiary or any asset (including the
stock of any Subsidiary thereof) of any Unrestricted Subsidiary; (x) Liens on
assets acquired in connection with the incurrence of Purchase Money
Indebtedness; (xi) Liens granted in connection with the incurrence of
Refinancing Indebtedness; (xii) Liens in favor of the Pension Benefits Guaranty
Corporation or otherwise arising out of or in connection with any employee
benefit plans; (xiii) Liens incurred in connection with any Production Payment
Transaction; (xiv) any other Liens securing obligations not exceeding, in the
aggregate, $1.5 million; or (xv) any Liens incurred in connection with West
Nyack Indebtedness.
 
     "Permitted Subordinated Indebtedness" means unsecured Indebtedness incurred
by the Company or any Restricted Subsidiary provided (i) no payment of principal
thereon is made or required to be made on or before the Maturity Date, (ii) no
payment of principal or interest is made during the continuance of an Event of
Default, and (iii) at the time of incurrence thereof there is no outstanding
Default or Event of Default.
 
     "Permitted Working Capital Loans" means loans (or contingent liability with
respect to letters of credit) under committed revolving credit, working capital
or letter of credit facilities which may or may not be secured by a lien on
inventory and/or Receivables that the Company or any Restricted Subsidiary of
the Company may have from time to time, to the extent that the aggregate
principal amount of all such Indebtedness outstanding under all such facilities
at any time does not exceed the value of the inventory and Receivables on the
books of the Company and its Subsidiaries, taken as a whole.
 
     "Person" means any individual, corporation, partnership, joint venture,
association, joint-stock company, trust, unincorporated organization, or
government or any agency or political subdivision thereof.
 
     "Plan of Reorganization" means the Company's Amended Consolidated Plan of
Reorganization, as amended from time to time.
 
     "Preferred Stock", as applied to the stock of any Person, shall mean any
class of stock of such Person which has a preference in respect of dividends of
such Person or other distribution of assets, or in respect of amounts payable in
the event of any voluntary or involuntary liquidation, dissolution and winding
up of such Person, over any other class of stock of such Person.
 
     "Production Payment Transaction" means any sale or transfer by the Company
or any Restricted Subsidiary of (1) sand, gravel, limestone and other minerals
for a period of time until, or in an amount such that, the purchaser or
transferee will realize therefrom a specified amount of money (however
determined) or a specified amount of such sand, gravel, limestone and other
minerals, or (2) any other interest in property of the character commonly
referred to as a "production payment", whether or not the instrument or
instruments of sale or transfer, or creating the production payment, impose
obligations with respect to the operation, use or maintenance of the properties
sold or transferred or subject to the production payment.
 
                                       L-4
<PAGE>   226
 
     "Purchase Money Indebtedness" means any Indebtedness incurred by the
Company or any of its Restricted Subsidiaries in connection with the acquisition
by the Company or such Subsidiary, after the Effective Date, of equipment or
other fixed assets, including Indebtedness incurred to finance, refinance or
refund the cost (including the cost of construction) of such assets; provided
that (i) the principal amount of such Indebtedness does not exceed the Fair
Value of the assets being acquired or the cost of construction paid by or
charged to the Company or such Restricted Subsidiary and (ii) such Indebtedness
shall not be secured by any assets of the Company or any Restricted Subsidiary
other than the assets with respect to which such Indebtedness is incurred.
 
     "Redemption Price" has the meaning assigned to such term in Section 3.07
hereof.
 
     "Receivables" means all "accounts", all "chattel paper", all "instruments"
evidencing "accounts" and all proceeds thereof, as each such term is defined in
the Uniform Commercial Code as in effect in the State of New York on the
Effective Date.
 
     "Refinancing Indebtedness" means Indebtedness the proceeds of which are
used to extend, renew, refinance or refund then outstanding Indebtedness of the
Company or its Restricted Subsidiaries if such refinancing or refunding
Indebtedness (i) does not have a Principal amount in excess of the Principal
amount of the Indebtedness being so refinanced or refunded, plus customary fees,
expenses and costs related to the incurrence of such Refinancing Indebtedness;
(ii) gives its holders collateral with no greater value (as determined by the
Company's Board of Directors) and no more Guaranties from the Company and its
Subsidiaries (other than Unrestricted Subsidiaries) than the Indebtedness being
refinanced; (iii) amortizes no more quickly and has a maturity date no earlier
than the Indebtedness being refinanced; and (iv) is at least as junior or no
more senior in right of payment to the Securities, as the case may be, as the
Indebtedness being refinanced (other than with respect to any portion for which
repayment is secured by Permitted Liens or Guarantees of Unrestricted
Subsidiaries or third parties).
 
     "Registrar" has the meaning assigned to such term in Section 2.03 hereof.
 
     "Restricted Subsidiary" means: (A) any Subsidiary other than: (i) a
Subsidiary substantially all of the physical properties of which are located,
and substantially all of the business of which is carried on, outside the limits
of the United States of America (including Alaska and Hawaii) or which is
organized under the laws of any jurisdiction other than the United States of
America, the District of Columbia, the Commonwealth of Puerto Rico, the States
or the possessions of the United States; (ii) a Subsidiary the primary business
of which consists of purchasing accounts receivable and/or making loans secured
by accounts receivable and/or making investments in or in the development of
real estate (other than for sale or lease to the Company or its Restricted
Subsidiaries) or providing services directly related thereto, or which is
otherwise primarily engaged in the finance business or in the real estate
business; or (iii) Rosebud Holdings, Inc. and its Subsidiaries; and (B) any
Subsidiary specified in clause (i) or (ii) of paragraph (A) above which the
Company, by resolution of the Board of Directors, shall have designated as a
Restricted Subsidiary.
 
     "Retained Earnings" of any Person shall mean the amount which would be
shown as retained earnings on a balance sheet of such Person as of the date the
determination is being made.
 
     "Sale of Assets" means any sale, lease or other conveyance of a material
amount of assets (including by way of merger or consolidation) of the Company or
its Restricted Subsidiaries out of the ordinary course of business (including
the Capital Stock of any Restricted Subsidiary of the Company but excluding the
Capital Stock of the Company), as the case may be, if and to the extent (but
only to the extent) that all such sales, leases and other conveyances from and
after the Effective Date result in aggregate Net Proceeds in excess of $5
million; provided, however, that the term "Sale of Assets" shall not include (i)
any consolidation or merger involving the Company or any Restricted Subsidiary
for the purpose of reincorporating the Company or such Subsidiary in another
jurisdiction; (ii) the involvement of the Company or any Restricted Subsidiary
in a merger, consolidation or reorganization approved by the holders of      %
or more of the then outstanding principal amount of the Securities; (iii) any
sale, lease, conveyance or other disposition of any assets of Rosebud Holdings,
Inc. and its Subsidiaries or any other Person in which Rosebud Holdings, Inc.
has an interest, directly or indirectly; (iv) any sale, lease, conveyance or
other disposition of assets among or between
 
                                       L-5
<PAGE>   227
 
the Company and one or more of its Restricted Subsidiaries or among or between
Restricted Subsidiaries, including, without limitation, the merger of any
Restricted Subsidiary with and into the Company or any other Restricted
Subsidiary of the Company; (v) any sale, lease, conveyance or other disposition
of the stock or any assets of any Unrestricted Subsidiary; (vi) any Production
Payment Transaction; (vii) any sale, lease, conveyance or other disposition of
assets of the Company or any Restricted Subsidiary to the extent the proceeds
thereof are reinvested substantially contemporaneously with their receipt in the
acquisition or improvement of assets by the Company and/or any Restricted
Subsidiary which the Board of Directors has in good faith determined will be
useful in the business to be conducted by the Company or such Restricted
Subsidiary; or (viii) any sale, lease, conveyance or other disposition of assets
pursuant to a sale-leaseback arrangement permitted pursuant to this Indenture.
For purposes of this Indenture, a reinvestment of proceeds shall be considered
substantially contemporaneous if completed within 24 months of receipt and a
material amount of assets means assets with a Fair Value of at least $2 million.
 
     "SEC" means the Securities and Exchange Commission.
 
     "Securities" means the Notes issued under this Indenture
 
     "Senior Notes" means the Securities.
 
     "Subsidiary" shall mean any Person more than 50% of the outstanding voting
stock of which is owned, directly or indirectly, by the Company or by one or
more other Subsidiaries. For the purposes of this definition, "voting stock"
means stock which ordinarily has voting power for the election of directors,
whether at all times or only so long as no senior class of stock has such voting
power by reason of any contingency.
 
     "TIA" means the Trust Indenture Act of 1939 (15 U.S. Code
sec.sec. 77aaa-77bbbb) as in effect on the date of this Indenture, except as
provided in Section 9.03.
 
     "Total Borrowed Funds" shall mean at any time the aggregate, without
duplication, of (i) Indebtedness of the Company and its Restricted Subsidiaries;
(ii) the amount of any Indebtedness incurred by any Person other than the
Company or a Restricted Subsidiary which the Company or a Restricted Subsidiary
has guaranteed or for which it is otherwise liable or responsible (such as by
agreement to purchase indebtedness of others); (iii) amounts of Indebtedness
borrowed by Unrestricted Subsidiaries or Affiliates of the Company or its
Restricted Subsidiaries to the extent such amounts are loaned to the Company or
a Restricted Subsidiary regardless of any accounting treatment employed by the
Company's independent public accountants for "netting" such loans against the
investment of the Company or any Restricted Subsidiary in such Unrestricted
Subsidiary or Affiliate; and (iv) Purchase Money Indebtedness; provided,
however,that in computing Total Borrowed Funds of any Person, there shall be
excluded (x) Permitted Subordinated Indebtedness of the Company and its
Restricted Subsidiaries and (y) any particular indebtedness if, upon or prior to
the maturity thereof, there shall have been deposited with the proper depository
in trust, money (or evidences of such indebtedness if permitted by the
instrument creating such indebtedness) in the necessary amount to pay, redeem or
satisfy such indebtedness, and thereafter such money and evidences of
indebtedness so deposited shall not be included in any computation of the assets
of such Person.
 
     "Total Capitalization" means at any time, without duplication, for the
Company and its Restricted Subsidiaries, (A) the sum of (i) Total Borrowed
Funds, (ii) par or stated value of outstanding shares of Preferred Stock, (iii)
the par or stated value of issued and outstanding shares of any class or classes
of the Company's Common Stock, (iv) the amounts paid in respect of the Company's
Capital Stock in excess of capital not previously distributed, (v) Consolidated
Retained Earnings, (vi) the amount of deferred income taxes of the Company and
its Subsidiaries appearing in the most recent audited consolidated balance sheet
of the Company and its Subsidiaries at such time and (vii) any amount which
under GAAP would result in a credit to equity in connection with the issuance
and/or exercise of warrants, options or convertible securities.
 
     "Trustee" means the party named as such in this Indenture until a successor
replaces it and thereafter means the successor.
 
     "Trust Officer" means any officer of the Trustee assigned by the Trustee to
administer its corporate trust matters.
 
                                       L-6
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     "Unrestricted Subsidiary" shall mean any Subsidiary which is not a
Restricted Subsidiary; all Unrestricted Subsidiaries as of the date of this
Indenture are listed on Schedule   hereto.
 
     "U.S. Government Obligations" means direct non-callable obligations of, or
non-callable obligations guaranteed by, the United States of America for the
payment of which the full faith and credit of the United States of America is
pledged.
 
     "West Nyack Indebtedness" means the first $25 million of principal amount
of Indebtedness from time to time outstanding (and accrued interest thereon),
including without limitation Capitalized Leases, sale-leaseback transactions or
any other kind of Indebtedness incurred in connection with the West Nyack
Modernization.
 
     "West Nyack Modernization" means the proposed modernization of the
Company's West Nyack, New York, plant and related facilities.
 
SECTION 1.02  INCORPORATION BY REFERENCE OF TRUST INDENTURE ACT.
 
     Whenever this Indenture refers to a provision of the TIA, the provision is
incorporated by reference in and made a part of this Indenture.
 
     The following TIA terms used in this Indenture have the following meanings:
 
     "indenture securities" means the Securities.
 
     "indenture security holder" means a Securityholder.
 
     "indenture to be qualified" means this Indenture.
 
     "indenture trustee" or "institutional trustee" means the Trustee.
 
     "obligor" on the indenture securities means the Company.
 
     All other terms used in this Indenture that are not otherwise defined
herein and are defined by the TIA, are defined by TIA reference to another
statute, or are defined by SEC rule under the TIA, have the meanings so assigned
to them.
 
SECTION 1.03  RULES OF CONSTRUCTION.
 
     Unless the context otherwise requires:
 
     (1) a term has the meaning assigned to it;
 
     (2) "or" is not exclusive;
 
     (3) words in the singular include the plural and in the plural include the
singular except where the nontext manifestly otherwise requires;
 
     (4) provisions apply to successive events and transactions; and
 
     (5) "herein", "hereof " and other words of similar import refer to this
Indenture as a whole and not to any particular Article, Section or other
subdivision.
 
                                   ARTICLE 2.
 
                                 THE SECURITIES
 
SECTION 2.01  FORM AND DATING.
 
     The Securities and the Trustee's certificate of authentication shall be
substantially in the form set forth in Exhibit A, which is incorporated all
forms a part of this Indenture. The Securities may have such notations, legends
or endorsements as are required by law, stock exchange rule or usage. Each
Security shall be dated the date of its authentication.
 
                                       L-7
<PAGE>   229
 
SECTION 2.02  EXECUTION AND AUTHENTICATION.
 
     Two Officers shall sign the Securities for the Company by manual or
facsimile signature. The Company's seal shall be reproduced on the Securities.
 
     If an Officer whose signature is on a Security no longer holds that office
at the time the Security is authenticated, the Security shall nevertheless be
valid.
 
     A Security shall not be valid until authenticated by the manual or
facsimile signature of the Trustee. The signature shall be conclusive evidence
that tile Security has been authenticated by the Trustee under this Indenture.
 
     The Trustee shall authenticate Securities for original issue in the
aggregate principal amount of up to $75,000,000 upon a written order of the
Company signed by two Officers or by an Officer and an Assistant Treasurer or
Assistant Secretary of the Company. Such order shall specify the amount of
Securities to be authenticated and the date on which the original issue of
Securities is to be authenticated. The aggregate principal amount of Securities
outstanding at any time may not exceed the amount of Securities issued pursuant
to this paragraph except as provided in Section 2.07.
 
     The Trustee may appoint an authenticating agent acceptable to the Company
to authenticate Securities. An authenticating agent may authenticate Securities
whenever the Trustee may do so. Each reference in this Indenture to
authentication by the Trustee includes authentication by such agent. An
authenticating agent has the same rights as an Agent to deal with the Company or
any Affiliate.
 
     The Securities shall be issuable only in registered form without coupons
and only in denominations of $1,000 and integral multiples thereof.
 
SECTION 2.03  REGISTRAR AND PAYING AGENT.
 
     The Company shall maintain in the Borough of Manhattan, The City of New
York, an office or agency where Securities may be presented for registration of
transfer or for exchange (the "Registrar"), and an office or agency where
Securities may be presented for payment (the "Paying Agent"). The Registrar
shall keep a register of the Securities and of their transfer and exchange. The
Company may appoint or change one or more co-registrars and one or more
additional paying agents without notice, and may act in any such capacity, on
its own behalf provided that if the Trustee is acting as registrar or paying
agent, the Company shall give the Trustee at least five Business Days prior
written notice of such change. The term "Paying Agent" includes any additional
paying agent.
 
     The Company shall enter into an appropriate agency agreement with any Agent
not a party to this Indenture. The agreement shall implement the promises of
this Indenture that relate to such Agent. The Company shall notify the Trustee
of the name and address of any Agent not a party to this Indenture. If the
Company fails to maintain a Registrar or Paying Agent, the Trustee shall act as
such.
 
     The Company initially appoints the Trustee as Registrar and Paying Agent.
 
SECTION 2.04  PAYING AGENT TO HOLD MONEY IN TRUST.
 
     Each Paying Agent shall hold in trust for the benefit of the
Securityholders or the Trustee all moneys held by the Paying Agent for the
payment of principal of or interest on the Securities, and shall notify the
Trustee of any default by the Company in making any such payment. While any such
default continues, the Trustee may require a Paying Agent to pay all money held
by it to the Trustee. The Company may at any time require a Paying Agent to pay
all money held by it to the Trustee. Upon payment over to the Trustee, the
Paying Agent shall have no further liability for the money. If the Company acts
as Paying Agent, it shall segregate and hold as a separate trust fund all money
held by it as Paying Agent.
 
                                       L-8
<PAGE>   230
 
SECTION 2.05  SECURITYHOLDER LISTS.
 
     The Trustee shall preserve in as current a form as is reasonably
practicable the most recent list available to it of the names and addresses of
Securityholders. If the Trustee is not the Registrar, the Company shall furnish
to the Trustee on or before each interest payment date and at such other times
as the Trustee may request in writing a list, in such form and as of such date
as the Trustee may reasonably require, of the names and addresses of
Securityholders.
 
SECTION 2.06  TRANSFER AND EXCHANGE.
 
     When Securities are presented to the Registrar or a co-Registrar with a
request to register their transfer or to exchange them for an equal principal
amount of Securities of other authorized denominations accompanied by a written
instrument or instruments of transfer, in form satisfactory to the Company and
the Registrar, duly executed by the registered owner or by his or her attorney
duly authorized in writing, the Registrar shall register the transfer or make
the exchange if the requirements of Section 8-401(l) of the New York Uniform
Commercial Code are met. To permit registrations of transfer and exchanges, the
Trustee shall authenticate Securities at the Registrar's request. The Company or
the Trustee, as the case may be, shall not be required (i) to issue,
authenticate, register the transfer of or exchange any Security during a period
beginning at the opening of business 15 days before the mailing of a notice of
redemption of the Securities selected for redemption under Section 3.03 and
ending at the close of business on the day of such mailing, or (ii) to register
the transfer of or exchange any Security so selected for redemption in whole or
in part, except the unredeemed portion of Securities being redeemed in part.
 
     No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any transfer, registration of transfer or exchange of Securities, other
than exchanges pursuant to Sections 2.10, 3.06 or 9.05 not involving any
transfer.
 
     Anything in this Indenture to the contrary notwithstanding, but subject to
the payment of interest to the Holders of the Securities on the applicable
record date, the parties hereto and any agent thereof may deem and treat the
Holder of any Securities, prior to due presentment thereof for registration of
transfer, as the absolute owner of such Securities for all purposes (whether or
not the Securities shall be overdue and notwithstanding any, notation of
ownership or other writing thereon) and neither the Company, the Trustee nor any
agent of the Company or the Trustee shall be affected by any notice to the
contrary.
 
SECTION 2.07  REPLACEMENT SECURITIES.
 
     If the Holder of a Security claims that the Security has been mutilated,
lost, destroyed or wrongfully taken, the Company shall execute and issue and,
upon the Company's request, the Trustee shall authenticate and deliver a
replacement Security if their respective reasonable requirements as well as the
requirements of applicable law are met and, in the case of a mutilated Security,
such mutilated Security is surrendered to the Trustee. If required by the
Trustee or the Company, an indemnity bond must be furnished by such Holder in an
amount sufficient in the judgment of the Trustee or the Company, as the case may
be, to indemnity and protect the Company, the Trustee and any other Agent and
hold them harmless from any loss which any of them may suffer if a Security is
replaced. The Company or the Trustee may charge for its reasonable expenses in
replacing a Security.
 
     If any mutilated, destroyed or wrongfully taken Security, has become or is
about to become due and payable, the Company in its discretion may, instead of
issuing a new Security, pay such Security when due.
 
     Every replacement Security is an additional obligation of the Company.
 
SECTION 2.08  OUTSTANDING SECURITIES.
 
     Securities outstanding at any time are all the Securities authenticated by
the Trustee except those canceled by it, those delivered to it for cancellation,
and those described in this Section as not outstanding. A
 
                                       L-9
<PAGE>   231
 
Security does not cease to be outstanding solely because the Company or one of
its Subsidiaries or Affiliates is a Holder of the Security.
 
     If a Security is replaced pursuant to Section 2.07, it ceases to be
outstanding unless the Trustee receives proof satisfactory to it, or a court
holds, that the replaced Security is held by a bona fide purchaser.
 
     If the Paying Agent (if other than the Company) or the Trustee holds on a
redemption date or the Maturity Date money sufficient to pay the principal of,
and accrued interest on, the Securities payable on that date, then on and after
that date such Securities shall be deemed to be no longer outstanding and
interest on them shall cease to accrue.
 
SECTION 2.09  SECURITIES HELD BY THE COMPANY OR AN AFFILIATE.
 
     In determining whether the Holders of the required principal amount of
Securities have concurred in any direction, request, waiver or consent under
this Indenture, Securities owned by the Company or any Subsidiary or Affiliate
of the Company shall be disregarded, except that for the purposes of determining
whether the Trustee shall be protected in relying on any such direction,
request, waiver or consent, only Securities which the Trustee knows are so owned
shall be so disregarded.
 
SECTION 2.10  TEMPORARY SECURITIES.
 
     Until definitive Securities are ready for delivery, the Company may prepare
and execute and the Trustee shall authenticate and deliver temporary Securities.
Temporary Securities shall be substantially in the form of definite Securities,
but may have such variations as the Company considers appropriate for temporary
Securities. The Company shall prepare and execute and the Trustee shall
authenticate and deliver Securities in exchange for temporary Securities without
unreasonable delay.
 
SECTION 2.11  CANCELLATION.
 
     The Company may at any time deliver Securities to the Trustee for
cancellation. The Registrar and Paying Agent shall forward to the Trustee any,
Securities surrendered to them for registration of transfer, exchange or
payment. The Trustee shall cancel all Securities surrendered for registration of
transfer, exchange, payment or cancellation and, at the option of the Company,
shall destroy canceled Securities and deliver a certificate of any such
destruction to the Company. The Company may not issue new Securities to replace
Securities that it has paid or delivered to the Trustee for cancellation.
 
SECTION 2.12  DEFAULTED INTEREST.
 
     If and to the extent the Company defaults in a payment of interest on the
Securities, it shall pay the defaulted interest in any lawful manner. It may pay
the defaulted interest to the Persons who are Securityholders on a subsequent
special record date. The Company shall fix such record date and payment date. At
least 15 days before the record date, the Company shall mail to Securityholders,
with a copy to the Trustee. a notice that states the record date, payment date
and amount of interest to be paid.
 
                                   ARTICLE 3.
 
                                   REDEMPTION
 
SECTION 3.01  NOTICES TO TRUSTEE.
 
     If the Company wants to redeem Securities pursuant to Section 3.07 or is
required to redeem Securities pursuant to Section 3.08, it shall notify the
Trustee, by means of an Officer's Certificate at least 60 days prior to the
redemption date (unless a shorter notice period shall be satisfactory to the
Trustee), of the redemption date and the principal amount of Securities to be
redeemed. If the Company elects to reduce the amount of Securities required to
be redeemed pursuant to Section 3.08 as provided therein, it shall notify the
Trustee at least 60 days prior to the redemption date (unless a shorter notice
period shall be satisfactory to the Trustee)
 
                                      L-10
<PAGE>   232
 
of the amount of the reduction and the basis for it. If the Company elects to
credit against any such redemption Securities it has not previously delivered to
the Trustee for cancellation, it shall deliver the Securities with the notice.
 
SECTION 3.02  SELECTION OF SECURITIES TO BE REDEEMED.
 
     If less than all the Securities are to be redeemed, the Trustee shall
select the Securities to be redeemed on a pro rata basis, by lot or such other
method as the Trustee shall deem fair and equitable. The Trustee shall make the
selection from Securities outstanding and not previously called for redemption.
The Trustee may select for redemption portions of the principal of Securities
that hand denominations larger than $1,000. The Securities and portions of them
it selects shall be in amounts of $1.000 or whole multiples of $1,000. The
provisions of this Indenture that apply, to Securities called for redemption
also apply to portions of Securities called for redemption. For purposes of any
such selection the Company will, upon request of the Trustee, close for a period
of 15 days preceding the mailing of any notice of redemption the registry books
of the Company with respect to the Securities.
 
SECTION 3.03  NOTICE OF REDEMPTION.
 
     At least 15 days but not more than 60 days before a redemption date, the
Company shall mail a notice of redemption by first-class mail to each Holder
whose Securities are to be redeemed.
 
     The notice shall identify the Securities and the principal amount thereof
to be redeemed and shall state:
 
     (1) the redemption date;
 
     (2) the Redemption Price (and the amount of accrued interest to be paid on
the Securities called for redemption);
 
     (3) the name and address of the Paying Agent;
 
     (4) the provisions of the Securities and this Indenture pursuant to which
the Securities are to be redeemed;
 
     (5) that Securities called for redemption must be surrendered to the Paying
Agent to collect the Redemption Price;
 
     (6) that interest on Securities called for redemption ceases to accrue on
and after the redemption date unless the Company shall default in the payment of
the Redemption Price; and
 
     (7) the CUSIP number of the Securities.
 
     At the Company's request, the Trustee shall give the notice of redemption
in the Company's name and at the Company's expense.
 
SECTION 3.04  EFFECT OF NOTICE OF REDEMPTION.
 
     Once a notice of redemption is mailed in accordance with tile provisions
hereof, the Securities called for redemption become due and payable on the
redemption date at the Redemption Price and, on and after such redemption date
(unless the Company shall default in the payment of the Redemption Price), such
Securities shall cease to bear interest and such Securities shall be deemed not
to be outstanding hereunder and shall not be entitled to any benefits hereunder,
except to receive payment of the Redemption Price together with all accrued
interest to the date fixed for redemption. Upon surrender to the Paying Agent,
such Securities shall be paid at the Redemption Price plus accrued interest to
the redemption date.
 
SECTION 3.05  DEPOSIT OF REDEMPTION PRICE.
 
     On or before the Business Day immediately preceding the redemption date,
the Company shall deposit with the Paying Agent money in funds immediately
available on the redemption date sufficient to pay the Redemption Price of and
accrued interest on all Securities to be redeemed on that date.
 
                                      L-11
<PAGE>   233
 
SECTION 3.06  SECURITIES REDEEMED IN PART.
 
     Upon surrender of a Security that is redeemed in part, the Trustee shall
authenticate for the Holder a new Security equal in principal amount to the
unredeemed portion of the Security surrendered.
 
SECTION 3.07  OPTIONAL REDEMPTION.
 
     The Securities may be redeemed at the option of the Company in whole at any
time or in part from time to time at a price equal to the principal amount to be
redeemed (the "Redemption Price") plus accrued and unpaid interest to the date
of such optional redemption. The Securities may also be redeemed or prepaid by
purchase by the Company on the open market from time to time, without penalty or
premium.
 
SECTION 3.08  MANDATORY REDEMPTION UPON SALE OF ASSETS.
 
     Neither the Company nor any Restricted Subsidiary may consummate a Sale of
Assets unless, within 120 days after consummation, all of the Net Proceeds
received as a result of the Sale of Assets (after setting aside a sufficient
amount of such proceeds so as to leave the Company with $5 million in net
working capital and after setting aside any proceeds to be reinvested in
accordance with clause (vii) of the proviso to the definition of Sale of Assets)
are deposited with the Trustee to redeem outstanding Securities at a price equal
to the Redemption Price plus accrued and unpaid interest to the date of such
redemption. With the approval of the Board of Directors, the Company may elect,
for purposes of this Section 3.08, to be deemed to have deposited with the
Trustee and applied Net Proceeds to the redemption of Securities to the extent
it shall acquire, before or after such Sale of Assets, in lieu of making all or
any portion of the deposit and redemptions of such Securities provided for in
this Section 3.08, through open market or other purchases, Securities with a
principal amount equal to the principal amount of Securities which could have
been redeemed with such amount of Net Proceeds (upon payment of the Redemption
Price plus accrued and unpaid interest thereon) upon redemption pursuant to
Section 3.07 and that have not been previously credited against redemptions or
purchases upon a Sale of Assets or a required sinking fund payment under Section
3.09, provided any Securities so purchased shall be delivered to the Trustee for
cancellation within 120 days after the receipt of such Net Proceeds.
 
SECTION 3.09  SINKING FUND PAYMENTS.
 
     The Company shall make three payments of $10,000,000 each into a sinking
fund account maintained at office of the Trustee commencing in the year 2000.
The first such payment shall be made on or before July   , 2000, the second on
or before July   , 2001 and the third on or before July   , 2002. All funds in
such account shall, at the Company's direction, from time to time, be held in
cash in an interest-bearing account, or invested in U.S. Government Obligations
designated by the Company with a maturity, date not later than one business day
before the Maturity Date ("bonds"). The funds in the sinking fund account shall
be used to redeem Securities from time to time on or before the Maturity Date as
and when directed by the Company. The amount of any such required sinking fund
payment may be reduced by the principal amount of any Securities that the
Company has optionally redeemed or purchased and delivered to the Trustee for
cancellation and that have not been previously credited against redemptions or
purchases upon a Sale of Assets or a required sinking fund payment. For purposes
of this Indenture, funds held by the Trustee shall be deemed held by the Paying
Agent. In the event that, at any time, the principal amount of any Securities
previously redeemed under this Section or delivered by the Company to the
Trustee for cancellation under this Section plus any cash (together with the
proceeds of the bonds, including, without limitation, principal, interest and
premium) in the sinking fund account at any time that the Company is not in
default hereunder exceeds the lesser of (i) the then outstanding principal
amount of Securities and (ii) $30,000,000, the excess shall be returned to the
Company.
 
                                      L-12
<PAGE>   234
 
                                   ARTICLE 4.
 
                                   COVENANTS
 
SECTION 4.01  PAYMENT OF SECURITIES.
 
     The Company shall pay the principal of and interest on the Securities on
the dates and in the manner provided in the Securities and this Indenture.
Principal and interest shall be considered paid on the date due if the Paying
Agent (if other than the Company) holds on that date money sufficient to pay all
principal and interest then due. The Company shall pay interest on overdue
principal at the rate borne by the Securities.
 
SECTION 4.02  MAINTENANCE OF OFFICE OR AGENCY.
 
     The Company will maintain in the Borough of Manhattan, The City of New
York, an office or agency where Securities may be surrendered for registration
of transfer or exchange and where notices and demands to or upon the Company in
respect of the Securities and this Indenture may be served. The Company will
give prompt written notice to the Trustee of the location, and any change in the
location, of such office or agency. If at any time the Company shall fail to
maintain any such required office or agency or shall fail to furnish the Trustee
with the address thereof, such presentations, surrenders, notices and demands
may be made or served at the Corporate Trust Office of the Trustee.
 
     The Company may also from time to time designate one or more other offices
or agencies where the Securities may be presented or surrendered for any or all
such purposes and may from time to time rescind such designations; provided,
however, that no such designation or rescission shall in any manner relieve the
Company of its obligation to maintain an office or agency in the Borough of
Manhattan, The City of New York, for such purposes. The Company will give prompt
written notice to the Trustee of any such designation or rescission and of any
change in the location of any such other office or agency.
 
     The Company hereby designates the Corporate Trust Office of the Trustee as
an agency of the Company in accordance with Section 2.03.
 
SECTION 4.03  CORPORATE EXISTENCE.
 
     Except as permitted in Article 5, the Company, and its Restricted
Subsidiaries shall each do or cause to be done all things necessary to preserve
and keep in full force and effect its corporate existence; provided, however,
that the Company shall not be required to preserve any corporate existence if
the Board of Directors shall determine that the preservation thereof is no
longer desirable in the conduct of the business of the Company and its
Restricted Subsidiaries as a whole and that the loss thereof is not
disadvantageous in any material respect to the Holders.
 
SECTION 4.04  PAYMENT OF TAXES.
 
     The Company will pay or discharge or cause to be paid or discharged, before
the same shall become delinquent (i) all taxes, assessments and governmental
charges levied or imposed upon the Company or any Restricted Subsidiary, and
(ii) all lawful claims for labor, materials and supplies which, if unpaid, might
by law become a material Lien upon the property of the Company or any Restricted
Subsidiary; provided, however, that the Company shall not be required to pay or
discharge or cause to be paid or discharged any such tax, assessment, charge or
claim whose amount, applicability or validity is being contested in good faith
by appropriate proceedings and for which it has set aside on its books such
reserves as it deems adequate.
 
SECTION 4.05  MAINTENANCE OF PROPERTIES.
 
     The Company will cause the material properties owned by the Company or any
Restricted Subsidiary for use in the conduct of its business or the business of
any such Restricted Subsidiary to be maintained and kept in good condition,
repair and working order (subject to ordinary wear and tear) and will cause to
be made all necessary repairs thereof, all as in the judgment of the Company may
be necessary so that the business carried on in connection therewith may be
properly and advantageously conducted: provided, however, that nothing in
 
                                      L-13
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this Section shall prevent the Company from discontinuing the maintenance or
repair of any such properties if such discontinuance is, in the judgment of the
Company, desirable in the conduct of its business or the business of any
Restricted Subsidiary and not disadvantageous in any material respect to the
Holders.
 
SECTION 4.06  SEC REPORTS.
 
     Within 15 days after the Company files with the SEC copies of its annual
and quarterly reports and other information, documents and reports (or copies of
such portions of any of the foregoing as the SEC may by rules and regulations
prescribe) which it is required to file with the SEC pursuant to Section 13 or
15(d) of the Exchange Act, the Company shall deliver the same to the Trustee.
The Company will mail copies of its annual reports and quarterly reports as
filed with the SEC, other than exhibits to any such report unless such exhibits
are themselves incorporated by reference in such report, to any Securityholder
upon request. If the Company shall cease to be subject to the requirements of
Section 13 or 15(d) of the Exchange Act, the Company shall deliver to the
Trustee and to each Securityholder, within 15 days after the date by which it
would have been required to make such a filing with the SEC, audited annual
financial statements prepared in accordance with generally accepted accounting
principles and unaudited condensed quarterly financial statements, including any
notes thereto, each comparable to that which the Company, would have been
required to include in such annual reports, information, documents or other
reports if the Company were then subject to the requirements of Section 13 or
15(d) of the Exchange Act. The Company also shall comply with the other
provisions of TIA sec. 314(a).
 
SECTION 4.07  COMPLIANCE CERTIFICATE.
 
     The Company shall deliver to the Trustee within 120 days after the end of
each fiscal year of the Company, and within 60 days after the end of each of the
first three fiscal quarters of the Company, an Officer's Certificate stating
that, after a review of the activities of the Company during such period and of
the Company's performance under this Indenture, whether or not, to the best
knowledge of the signer thereof based on such review, there has been any Default
or Event of Default by the Company in performing any of its obligations under
this Indenture or the Securities. If the signer does know of any such Default or
Event of Default, the certificate shall describe the Default or Event of Default
and its status.
 
SECTION 4.08  RESTRICTED INVESTMENTS AND RESTRICTED STOCK PAYMENTS.
 
     The Company will not declare any dividends (other than dividends payable
solely in capital stock of the Company or dividends required under the terms of
a preferred stock issued by a company which is at the time of such issuance or
later becomes a Restricted Subsidiary) on any capital stock of the Company or
make any payment on account of the purchase, redemption or other retirement of
any shares of such stock or make any distribution in respect thereof, either
directly or indirectly, and the Company will not itself, and will not permit any
Restricted Subsidiary to, make any investment in Unrestricted Subsidiaries,
unless such dividends are declared to be payable not more than 120 days after
the date of declaration, and unless, after giving effect to such proposed
dividend or other such payment or distribution or investment and to any other
dividends declared but not yet paid, each of the following conditions is
complied with at the date (hereinafter called the "Computation Date") of such
declaration (in case of a dividend) or of such other payment or distribution or
investment:
 
      (i) Total Borrowed Funds of the Company and its Restricted Subsidiaries,
taken as a whole, is not more than 60% of Total Capitalization of the Company
and its Restricted Subsidiaries, taken as a whole, and
 
     (ii) the sum of
 
          (1) Consolidated Net Income computed for the period commencing on the
     Effective Date to and including the Computation Date, plus:
 
          (2) the aggregate amount of net cash proceeds to tile Company from
     sale subsequent to the Effective Date of shares of its Capital Stock, but
     only insofar as such proceeds do not exceed the aggregate amount of all
     payments made subsequent to the Effective Date or then being made on
     account
 
                                      L-14
<PAGE>   236
 
     of the purchase, redemption or retirement of any shares of its Capital
     Stock shall be greater than the sum of

          (3) the aggregate amount of all such dividends declared and all such
     other such payments and distributions in respect of Capital Stock made
     during the period commencing on the Effective Date to and including the
     Computation Date, plus
 
          (4) the excess, if any, of (i) the amount of the aggregate
     unliquidated investment (computed as hereinbelow provided) on the
     Computation Date of the Company and all Restricted Subsidiaries in
     Unrestricted Subsidiaries, over (ii) the aggregate of (x) $          ,
     being the amount of the aggregate unliquidated investment (so computed) on
     the Effective Date of the Company and all Restricted Subsidiaries in
     Unrestricted Subsidiaries (y) an amount of up to $5 million which may be
     invested by the Company in Construction Aggregates Ltd., to the extent
     useful for its working capital needs and (z) the amount included in
     Consolidated Net Income, if any, by which the aggregate of the net profits
     realized upon any sales for cash after the Effective Date by tile Company
     and its Restricted Subsidiaries of its or their investments in Unrestricted
     Subsidiaries exceeds the aggregate of the net losses, if any, realized upon
     any such sales (such profits and losses to be determined in accordance with
     generally accepted accounting principles and, in the case of profits, after
     deducting all applicable taxes); provided that the profit or loss on all,
     such sale to the Company or to any Subsidiary shall not be included in such
     computation:
 
provided, however, that without regard to the foregoing restrictions of this
Section, (i) the Company may retire any shares of any class of its Capital Stock
by exchange for, or out of the proceeds of the substantially concurrent sale of,
other shares of its Capital Stock, and neither any such retirement nor any such
proceeds so used shall be included in any computation provided for in this
Section 4.08 and (ii) any Restricted Subsidiary may make any required payments
(including without limitation, dividend, sinking fund, and mandatory redemption
payments) on or in respect of any Preferred Stock of such Restricted Subsidiary
which exists on the Effective Date or is outstanding at any time hereafter that
the issuer of such Preferred Stock first becomes a Restricted Subsidiary. For
purposes of this Section 4.08, the issuance of Capital Stock upon the conversion
of any Indebtedness of the Company shall be deemed to constitute a sale for cash
of such capital stock and the net proceeds of such sale shall be deemed to be an
amount equal to the principal amount of such Indebtedness, less applicable
expenses and cash payments for fractional shares.
 
     For the purposes of any computation under this Section 4.08, the amount of
any dividend declared or other payment or distribution made in property other
than cash, and the amount of any investment in an Unrestricted Subsidiary made
through the transfer to it of any such property, shall be deemed to be Fair
Value (as determined by the Board of Directors) of such property at the time of
declaration (in the case of dividends) or at the time of payment or distribution
or investment.
 
     Also for the purpose of any computation under this Section 4.08, the
aggregate unliquidated investment of the Company and Restricted Subsidiaries in
any Unrestricted Subsidiary shall be computed in accordance with generally
accepted accounting principles and shall include all investments by means of
stock purchase, loan, advance, guarantee, capital contribution or otherwise,
provided, however, that
 
     (A) amounts invested by the Company through the exchange of its stock for
stock of any Unrestricted Subsidiary or for assets contemporaneously transferred
to an Unrestricted Subsidiary shall be disregarded;
 
     (B) undistributed earnings of an Unrestricted Subsidiary shall not be
included;
 
     (C) there shall not be deducted from the amounts invested in any
Unrestricted Subsidiary any amounts received by the Company or any Restricted
Subsidiary (as dividends, interest or otherwise) as earnings on its investment
in such Unrestricted Subsidiary;
 
     (D) write-ups, write-downs or write-offs after the Effective Date, of
investments in Unrestricted Subsidiaries shall be disregarded; and
 
     (E) accounts receivable from an Unrestricted Subsidiary arising in the
ordinary course of business from the sale of goods or services shall not be
included.
 
                                      L-15
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SECTION 4.09  TRANSACTIONS WITH AFFILIATES.
 
     The Company will not, and will not permit any of its Restricted
Subsidiaries to, engage in any material transaction with any of its Affiliates
(other than the Company or other Restricted Subsidiaries) unless (i) such
transaction is in the ordinary course of business or (ii) the Board of Directors
in good faith determines that such transaction is in the best interest of the
Company or such Restricted Subsidiary. Nothing in this Section 4.09 shall
prohibit any transactions pursuant to any agreement existing as of the Effective
Date.
 
SECTION 4.10  LIMITATION ON TOTAL BORROWED FUNDS AND LIENS.
 
     (a) The Company will not, and will not permit any Restricted Subsidiary,
directly or indirectly, to create, incur or assume or guarantee or otherwise
become liable or responsible for, any Indebtedness, unless immediately
thereafter and after giving effect thereto, Total Borrowed Funds of the Company
and its Restricted Subsidiaries, taken as a whole, will not be more than 60% of
Total Capitalization of the Company and its Restricted Subsidiaries, taken as a
whole; provided, however, that nothing contained in this paragraph 4.10(a) shall
prevent (i) the Company or any Restricted Subsidiary from creating, incurring or
assuming or guaranteeing or otherwise becoming liable or responsible for any
Refinancing Indebtedness, or (ii) a Restricted Subsidiary from creating,
incurring, or assuming, or guaranteeing or otherwise becoming liable or
responsible for Indebtedness to the Company or another Restricted Subsidiary,
(iii) the Company or any Restricted Subsidiary, from entering into any sale and
lease-back transaction the proceeds of which are reinvested substantially
contemporaneously with their receipt in connection with the acquisition or
improvement of capital assets of the Company and/or any of its Restricted
Subsidiaries.
 
     For purposes of this paragraph 4.10(a) and Section 4.08: (a) at the time
that a corporation becomes a Restricted Subsidiary it shall be deemed to have
created at such time all the Indebtedness it has outstanding immediately after
such time, and (b) in case any Restricted Subsidiary shall sell, transfer or
otherwise dispose of any Indebtedness owing by the Company, or in case the
Capital Stock of any Restricted Subsidiary which holds Indebtedness owing by the
Company or any other Restricted Subsidiary, shall be sold, transferred or
otherwise disposed of, such sale, transfer or disposition shall be deemed to
constitute the creation of such Indebtedness, and (c) if, after the Effective
Date, there shall be one or more changes in GAAP applicable to the Company or
any of its Restricted Subsidiaries which would cause the Company or any
Restricted Subsidiary to be prohibited from or restricted in taking some action
where the Company and its Restricted Subsidiary would not have been so
prohibited or restricted in the absence of such change in GAAP, then such change
shall be ignored in making any computation contemplated by Section 4.08 or 4.10.
 
     (b) The Company will not, and will not permit any of its Restricted
Subsidiaries to, create, incur, assume or suffer to exist any Lien on any asset
owned by the Company or any of its Restricted Subsidiaries except Permitted
Liens.
 
SECTION 4.11  CONFLICTING AGREEMENTS.
 
     The Company will not, and will not permit any of its Restricted
Subsidiaries to, enter into any agreement or execute any instrument (other than
agreements or instruments that relate solely to Permitted Working Capital Loans
and agreements involving Production Payment Transactions) that by its terms
expressly prohibits or otherwise would have the effect of prohibiting the
Company from redeeming or otherwise making any payments on or with respect to
the Securities pursuant to their terms and the terms of this Indenture.
 
SECTION 4.12  LIMITATION ON DIVIDENDS AND CERTAIN OTHER RESTRICTIONS AFFECTING
              SUBSIDIARIES.
 
     Except as otherwise provided by the terms of this Indenture, any Permitted
Working Capital Loans, any agreements involving Production Payment Transactions
or any agreements existing on the Effective Date, the Company will not, and will
not permit any of its Restricted Subsidiaries to create or otherwise cause or
suffer to exist or to become effective any encumbrance or restriction on the
ability of any of its Restricted Subsidiaries (i) to pay dividends, make loans,
extend guarantees or make any other distributions to the Company or to other
Restricted Subsidiaries, or to pay any Indebtedness owed to the Company or a
Restricted Subsidiary of the Company; (ii) to make loans or advances to the
Company or another Restricted Subsidiary;
 
                                      L-16
<PAGE>   238
 
or (iii) to transfer any of their respective properties or assets to the
Company, other than such encumbrances or restrictions existing under or by
reason of (a) applicable law, (b) customary non-assignment provisions of any
lease governing a leasehold interest of the Company or any of its Subsidiaries,
(c) restrictions on the transfer of assets acquired in connection with the
incurrence of Purchase Money Indebtedness and (d) Permitted Liens.
 
SECTION 4.13  LIMITATION ON RESTRICTED SUBSIDIARY INDEBTEDNESS.
 
     The Company will not suffer or permit any Restricted Subsidiary to:
 
          (a) directly or indirectly, create, incur or assume, guarantee or
     otherwise become liable or responsible for, or suffer to exist, any
     Indebtedness except (i) Indebtedness owed to the Company or a Restricted
     Subsidiary, (ii) Indebtedness secured by mortgages or other Liens permitted
     by the terms of this Agreement, (iii) Indebtedness outstanding at the time
     such Restricted Subsidiary became a Restricted Subsidiary, (iv)
     Indebtedness listed on Schedule   to this Indenture, (v) Indebtedness in
     accordance with the definition of West Nyack Indebtedness, (vi) Permitted
     Working Capital Loans; (vii) Purchase Money Indebtedness, (viii) the
     Guarantee, and (ix) Refinancing Indebtedness;
 
          (b) have outstanding (i) any Preferred Stock other than Preferred
     Stock owned by the Company or a Restricted Subsidiary or Preferred Stock
     outstanding at the time such Restricted Subsidiary became a Restricted
     Subsidiary, or (ii) more than one class of Common Stock unless more than
     50% of the outstanding shares of each class of Common Stock is owned by the
     Company or by one or more of its earlier Restricted Subsidiaries; or
 
          (c) issue or sell any Capital Stock of such Restricted Subsidiary to
     any Person other than the Company or a Restricted Subsidiary, except for
     (i) shares of Common Stock issued or sold solely for the purpose of
     qualifying directors, shares of Common Stock issued for the purpose of
     paying a pro rata stock dividend on the Common Stock of such Restricted
     Subsidiary, and (ii) additional shares of Common Stock sold in a
     subscription offer to the holders of the outstanding shares of Common Stock
     of such Restricted Subsidiary provided that the Company and its other
     Restricted Subsidiaries shall acquire a portion of such additional shares
     at least equal to the proportion of the outstanding shares of Common Stock
     of such Restricted Subsidiary theretofore owned by them.
 
SECTION 4.14  RESTRICTED SUBSIDIARIES.
 
     The Company:
 
          (a) will not, and will not suffer or permit any Restricted Subsidiary
     to, sell, transfer or otherwise dispose of any outstanding Capital Stock or
     Indebtedness of a Restricted Subsidiary owned by the Company or another
     Restricted Subsidiary to any Person other than the Company or a Restricted
     Subsidiary (except for directors' qualifying shares or shares of Capital
     Stock or Indebtedness sold, transferred or disposed of in order to comply
     with any applicable law, governmental regulation, order or decree) unless
     (x) (i) the Restricted Subsidiary, the Capital Stock and Indebtedness of
     which are so being sold, transferred or disposed of, does not own any
     Capital Stock or Indebtedness of any other Restricted Subsidiary and (ii)
     all outstanding Capital Stock and all Indebtedness of the Restricted
     Subsidiary, the Capital Stock and Indebtedness of which are so being sold,
     transferred or disposed of (which outstanding Capital Stock and
     Indebtedness are owned by the Company or any, Restricted Subsidiary), are
     sold, transferred or otherwise disposed of at one time as an entirety, in a
     single transaction or related series of transactions, for a consideration
     and upon terms deemed by the Board of Directors to be adequate and
     satisfactory; or (y) the Indebtedness sold, transferred or otherwise
     disposed of, if newly created on the date of such disposition, would have
     been permitted as of such date under Section 4.10 and 4.13;
 
                                      L-17
<PAGE>   239
 
          (b) will not suffer or permit a Restricted Subsidiary to consolidate
     or merge with or into any other Person, or to lease, sell or transfer all
     or substantially all of its property and assets to any Person, except that:
 
             (1) a Restricted Subsidiary may so consolidate or merge into, or
        may so lease, sell or transfer such property, and assets to, the
        Company;
 
             (2) a Restricted Subsidiary may so consolidate or merge with or
        into any other Person or may so lease, sell or transfer such property
        and assets to any other Person if, after giving effect to the
        transaction, the entity surviving such consolidation or merger, or
        acquiring such property and assets, will be a Restricted Subsidiary; and
 
             (3) a Restricted Subsidiary may so sell such property and assets
        for a consideration and upon terms deemed by the Board of Directors to
        be adequate and satisfactory; and
 
          (c) will not suffer or permit any Unrestricted Subsidiary to own any
     Capital Stock of a Restricted Subsidiary.
 
     Promptly after the designation of a Subsidiary as a Restricted Subsidiary
the Company will notify the Trustee in writing of such designation.
 
SECTION 4.15  WAIVER OF STAY, EXTENSION OR USURY LAWS.
 
     The Company covenants (to the extent that it may lawfully do so) that it
will not at any time insist upon, or plead, or in any manner whatsoever claim or
take the benefit or advantage of, any stay or extension law or any usury law or
other law which would prohibit or release the Company from paying all or any
portion of the principal or interest on the Securities as contemplated herein,
wherever enacted, now or at any time hereafter in force, or which may affect the
covenants or the performance of this Indenture, and (to the extent that it may
lawfully do so) the Company hereby expressly waives all benefit or advantage of
any such law, and covenants that it will not hinder, delay or impede the
execution of any power herein granted to the Trustee, but it will suffer and
permit the execution of every such power as though no such law had been enacted.
 
SECTION 4.16  MAINTENANCE OF INSURANCE AND RECORDS, COMPLIANCE WITH LAW.
 
     (a) Except to the extent that, in the exercise of its good faith business
judgment, the Company believes the cost to be incurred in procuring and/or
maintaining insurance to be excessive in view of the benefit to be derived
therefrom, the Company shall, and shall cause its Restricted Subsidiaries to,
maintain with financially sound and reputable insurers such (i) liability and
property and casualty insurance as may be required by law and (ii) such other
insurance, to such extent and against such hazards and liabilities,
substantially equivalent to the insurance that comparable companies maintain.
 
     (b) The Company shall keep, or cause to be kept, true books and records and
accounts in which entries will be made of all of the business transactions of
the Company and its Restricted Subsidiaries which shall be full and correct in
all material respects, in accordance with sound business practices, and reflect
in their respective financial statements adequate accruals and appropriate
reserves, all in accordance with generally accepted accounting principles.
 
     (c) The Company shall, and shall cause its Restricted Subsidiaries to,
comply with all statutes, laws, ordinances, or governmental rules and
regulations to which it is subject, noncompliance with which would materially
and adversely affect the prospects, earnings, properties, assets or condition,
financial or otherwise, of the Company and its Restricted Subsidiaries taken as
a whole.
 
SECTION 4.17  LIMITATION ON REDEMPTION OF CERTAIN PERMITTED SUBORDINATED
              INDEBTEDNESS.
 
     The Company will not, and will not permit any of its Restricted
Subsidiaries to, at any time that an Event of Default remains uncured hereunder
or at any time prior to the Maturity Date (i) redeem pursuant to the optional
redemption provisions thereof, or make any optional payment of principal on, any
Permitted Subordinated Indebtedness; (ii) defease Permitted Subordinated
Indebtedness; or (iii) issue to the holders of
 
                                      L-18
<PAGE>   240
 
Permitted Subordinated Indebtedness in exchange therefor any property or assets
(other than the proceeds of any Refinancing Indebtedness incurred with respect
to such Permitted Subordinated Indebtedness or securities which do not require
payments of principal or interest and are not mandatorily redeemable on or prior
to the Maturity Date).
 
SECTION 4.18  VALUE OF CLAIMS REPRESENTED BY SECURITIES.
 
     The parties hereto covenant and agree that in any case connected under
Chapter 11 of Title 11 of the United States Code subsequent to the Effective
Date involving the Company, the claims represented by the Securities shall equal
the full principal amount of the Securities, plus accrued and unpaid interest at
the stated rates set forth in the Securities.
 
SECTION 4.19  INVESTMENT COMPANY ACT OF 1940.
 
     The Company will not, and will not permit any of its Restricted
Subsidiaries to, take any action resulting in its becoming an "investment
company" (as such term is defined in the Investment Company Act of 1940, as
amended).
 
SECTION 4.20  NOTICE OF DEFAULT.
 
     In the event that any Default under this Indenture shall occur, the Company
will give prompt written notice of such Default to the Trustee, specifying the
nature and status of such Default and the steps which the Company or its
Subsidiaries have taken or propose to take in order to cure such Default.
 
                                   ARTICLE 5.
 
                                   SUCCESSORS
 
SECTION 5.01  WHEN COMPANY MAY MERGE, ETC.
 
     The Company shall not consolidate or merge with or into, or sell, assign,
transfer or lease all or substantially all of the assets of the Company and its
Restricted Subsidiaries, taken as a whole, to, any Person unless:
 
          (i) the Person formed by or surviving any such consolidation or merger
     (if other than the Company), or to which such sale or conveyance shall have
     been made, is an entity organized and existing under the laws of the United
     States, any state thereof or the District of Columbia; and
 
          (ii) the Person formed by or surviving any such consolidation or
     merger (if other than the Company), or to which such sale or conveyance
     shall have been made, assumes by supplemental indenture all the obligations
     of the Company under the Securities and this Indenture (including, without
     limitation, those under Section 3.9 hereof).
 
     The Company shall deliver to the Trustee prior to the consummation of the
proposed transaction an Officer's Certificate to the foregoing effect and an
Opinion of Counsel stating that the proposed transaction and supplemental
indenture comply with this Indenture.
 
SECTION 5.02  SUCCESSOR SUBSTITUTED.
 
     Upon any consolidation or merger or transfer or lease of all or
substantially all of the assets of the Company and its Restricted Subsidiaries,
taken as a whole, in accordance with Section 5.1, the successor Person formed by
such consolidation or into which the Company is merged or to which such sale,
assignment, transfer or lease is made shall succeed to, and be substituted for,
and may exercise every right and power of, and shall assume every duty and
obligation of, the Company under this Indenture with the same effect as if such
successor corporation had been named as the Company herein. When the successor
corporation assumes all obligations of the Company hereunder, all obligations of
the predecessor corporation shall terminate.
 
                                      L-19
<PAGE>   241
 
                                   ARTICLE 6.
 
                             DEFAULTS AND REMEDIES
 
SECTION 6.01  EVENTS OF DEFAULT.
 
     An "Event of Default" occurs if:
 
          (1) the Company defaults in the payment of interest on any Security
     when the same becomes due and payable, whether at maturity, in connection
     with any redemption, by acceleration or otherwise, and such default
     continues for a period of 30 days;
 
          (2) the Company defaults in the payment of the principal of any
     Security when the same becomes due and payable, whether at maturity, in
     connection with any redemption, by acceleration or otherwise and such
     default continues for a period of 30 days after the earlier of (i) the date
     on which written notice of such failure, requiring the Company to remedy
     the same, shall have been given to the Company by the Trustee, or to the
     Company and the Trustee by the Holders of at least 25% in aggregate
     principal amount of the Securities at the time outstanding or (ii) the date
     on which the Company had Actual Knowledge of such failure;
 
          (3) the Company or any of its Restricted Subsidiaries fails to observe
     or perform in any material respect any of its covenants or agreements in
     the Securities or this Indenture, which failure continues for a period of
     30 days after the earlier of (i) the date on which written notice of such
     failure, requiring the Company to remedy the same, shall have been given to
     the Company by the Trustee, or to the Company and the Trustee by the
     Holders of at least 25% in aggregate principal amount of the Securities at
     the time outstanding or (ii) the date on which the Company had Actual
     Knowledge of such failure;
 
          (4) (a) the Company or any of its Restricted Subsidiaries, fails to
     pay when due (whether at maturity, in connection with any mandatory
     amortization or redemption, by acceleration or otherwise) any principal or
     interest on any Indebtedness with an aggregate outstanding principal amount
     in excess of $5 million, whether any such Indebtedness is outstanding as of
     the date of which Indenture or is hereafter outstanding, which default
     continues for the greater of any period of grace applicable thereto or 60
     days from the date of such default, or (b) a default or event of default,
     as defined in one or more indentures, agreements or other instruments
     evidencing or under which the Company or any of its Restricted Subsidiaries
     individually or collectively have, as of the date of this Indenture or
     hereafter, outstanding at least $5 million aggregate principal amount of
     Indebtedness, shall happen and be continuing and such Indebtedness shall
     have accelerated so that it is due and payable prior to the date on which
     it would otherwise have become due and payable, and such acceleration shall
     not be rescinded or annulled within 60 days after the earlier of (i) the
     date on which written notice of such acceleration shall have been given to
     the Company by the Trustee, or to the Company and the Trustee by the
     Holders of at least 25% in aggregate principal amount of the Securities at
     the time outstanding or (ii) the date on which the Company had Actual
     Knowledge of such acceleration; provided that if such default or event of
     default under such indenture or other instrument shall be remedied or cured
     by the Company or the Restricted Subsidiary or waived by the holders of
     such Indebtedness, then the Event of Default under this Indenture by reason
     thereof shall be deemed likewise to have been thereupon remedied, cured or
     waived without further action upon the part of either the Trustee or any of
     the Holders of Securities;
 
          (5) one or more final judgments against the Company or any of its
     Restricted Subsidiaries for payments of money which in the aggregate exceed
     $5 million, are entered by a court of competent jurisdiction and such
     judgments are not rescinded, annulled, stayed or discharged within 90 days;
 
          (6) the Company and its Restricted Subsidiaries, taken as a whole
     become insolvent;
 
          (7) the Company or any of its material Restricted Subsidiaries
     pursuant to or within the meaning of any Bankruptcy Law:
 
               (a) commences a voluntary case,
 
                                      L-20
<PAGE>   242
 
               (b) consents to the entry of a judgment, decree or order for
     relief against it in an involuntary case or proceeding,
 
               (c) consents to the appointment of a Custodian of the Company or
     such material Subsidiary or for all or substantially all of its property,
 
               (d) makes a general assignment for the benefit of its creditors,
     or
 
               (e) applies for, consents to or acquiesces in the appointment of,
     or taking possession by a Custodian;
 
          (8) a court of competent jurisdiction enters a judgment, decree or
     order for relief in respect of the Company or any of its material
     Restricted Subsidiaries in an involuntary case or proceeding under any
     Bankruptcy Law which shall
 
               (a) approve as properly filed a petition seeking reorganization,
     arrangement, adjustment or composition;
 
               (b) appoint a Custodian for any part of its property; or
 
               (c) order the winding up or liquidation of its affairs;
 
and such judgment, decree or order remains unstayed and in effect for a period
of sixty (60) consecutive days; or
 
          (9) any bankruptcy or insolvency petition or application is filed, or
     any bankruptcy case or insolvency proceeding is commenced against the
     Company or any of its material Restricted Subsidiaries and such petition,
     application, case or proceeding is not dismissed or stayed within ninety
     (90) days.
 
     The term "Bankruptcy Law" means Title 11, U.S. Code or any similar Federal
or State law for the relief of debtors. The term "Custodian" means any receiver,
trustee, assignee, liquidator or similar official under any Bankruptcy Law. The
term "Actual Knowledge" means the actual knowledge of any executive officer of
the Company; provided, however, that each executive officer of the Company shall
be deemed to have actual knowledge of any fact that would have come to such
officer's attention if he or she had exercised reasonable care in performing his
or her duties, given the nature of his or her duties and the Company's business
and organization.
 
SECTION 6.02  ACCELERATION.
 
     If an Event of Default (other than an Event of Default specified in Section
6.01(6), (7), (8) or (9)) occurs and is continuing, the Trustee by notice to the
Company, or the Holders of at least 25% in principal amount of the Securities by
notice to the Company and the Trustee, may declare the principal of and accrued
interest on all the Securities to be due and payable. Upon such declaration such
principal and interest shall be due and payable immediately. If an Event of
Default specified in Section 6.01(6), (7), (8) or (9) occurs, all unpaid
principal and accrued interest on the Securities then outstanding shall ipso
facto become and be immediately due and payable without any declaration or other
act on the part of the Trustee or any Securityholder. The Holders of at least
66 2/3% of the principal amount of the Securities may rescind an acceleration
and its consequences by notice to the Trustee if the rescission would not
conflict with any judgment or decree and if the outstanding Events of Default
have been cured or waived except, unless theretofore cured, nonpayment of
principal or interest that has become due solely because of the acceleration. No
such rescission shall affect any subsequent Default or impair any right or
remedy with respect thereto.
 
SECTION 6.03  OTHER REMEDIES.
 
     Notwithstanding any other provision of this Indenture, if an Event of
Default occurs and is continuing, the Trustee may pursue any available remedy by
proceeding at law or in equity to collect the payment of principal of or
interest on the Securities or to enforce the performance of any provision of the
Securities, this Indenture or the Guarantee.
 
                                      L-21
<PAGE>   243
 
     The Trustee may maintain a proceeding even if it does not possess any of
the Securities or does not produce any of them in the proceeding. A delay or
omission by the Trustee or any Securityholder in exercising any right or remedy
accruing upon an Event of Default shall not impair the right or remedy or
constitute a waiver of or acquiescence in the Event of Default. No remedy is
exclusive of any other remedy. All remedies are cumulative.
 
     In case the Trustee shall have proceeded to enforce any rights under this
Indenture or the Guarantee and such proceedings shall have been discontinued or
abandoned for any reason or shall have been determined adversely to the Trustee,
then and in every such case the Company, the Trustee and the Holders shall,
subject to any determination in such proceeding, be restored respectively to
their former positions and rights hereunder, and all rights, remedies and powers
of the Company and the Trustee shall continue as though no such proceeding had
been taken.
 
SECTION 6.04  WAIVER OF PAST DEFAULTS.
 
     Subject to Section 6.07 and 9.02, the Holders of at least 66 2/3% of the
principal amount of the Securities by notice to the Trustee may waive an
existing Default or Event of Default and its consequences. When a Default or
Event of Default is waived, it is cured and ceases.
 
SECTION 6.05  CONTROL BY MAJORITY.
 
     The Holders of a majority in principal amount of the Securities may direct
the time, method and place of conducting any proceeding for any remedy available
to the Trustee or exercising any trust or power conferred on it. The Trustee,
however, may refuse to follow any direction that conflicts with law or this
Indenture, is unduly prejudicial to the rights of any Securityholder or would
subject the Trustee to personal liability; provided, the Trustee may take any
other action deemed proper by the Trustee which is not inconsistent with such
direction. The Company may set a record date for purposes of determining who may
exercise such control.
 
SECTION 6.06  LIMITATION ON SUITS.
 
     Except as provided in Section 6.07, a Securityholder may pursue a remedy
with respect to this Indenture or the Securities only if:
 
          (1) the Holder gives to the Trustee written notice of a continuing
     Event of Default;
 
          (2) the Holders of at least 25% in principal amount of the Securities
     make a written request to the Trustee to pursue the remedy;
 
          (3) such Holder or Holders offer to the Trustee indemnity reasonably
     satisfactory to the Trustee against any loss, liability or expense;
 
          (4) the Trustee does not comply with the request within 60 days after
     receipt of the request and the offer of indemnity; and
 
          (5) during such 60-day period the Holders of a majority in principal
     amount of the Securities do not give the Trustee a direction inconsistent
     with the request.
 
     A Securityholder may not use this Indenture to prejudice the rights of any
other Securityholder or to obtain a preference or priority over any other
Securityholder.
 
SECTION 6.07  RIGHTS OF HOLDERS TO RECEIVE PAYMENT.
 
     Notwithstanding any other provision of this Indenture, the right of any
Holder of a Security to receive payment of principal of and interest on the
Security, on or after the respective due dates (prior to any acceleration)
expressed in the Security, or to bring suit for the enforcement of any such
payment on or after such respective dates, shall not be impaired or affected
without the consent of the Holder.
 
                                      L-22
<PAGE>   244
 
SECTION 6.08  COLLECTION SUIT BY TRUSTEE.
 
     If an Event of Default specified in Section 6.01(1) or (2) occurs and is
continuing, the Trustee may recover judgment in its own name and as trustee of
an express trust against the Company for the whole amount of principal and
interest in default.
 
SECTION 6.09  TRUSTEE MAY FILE PROOFS OF CLAIMS.
 
     The Trustee may file such proofs of claim and other papers or documents as
may be necessary or advisable in order to have the claims of the Trustee, any
predecessor Trustee and the Securityholders allowed in any judicial proceedings
relative to the Company, its creditors or its property.
 
     Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder of the
Securities any plan of reorganization, arrangement, adjustment or composition
affecting the Securities or the rights of any Holder thereof, or to authorize
the Trustee to vote in respect of the claim of any Holder of the Securities in
any such proceeding.
 
SECTION 6.10  PRIORITIES.
 
     If the Trustee collects any money pursuant to this Article, it shall pay
out the money in the following order:
 
          First: to the Trustee for amounts due under Section 7.07;
 
          Second: to Securityholders for amounts due and unpaid on the
     Securities for principal and interest, ratably, without preference or
     priority of any kind, according to the amounts due and payable on the
     Securities for principal and interest, respectively;
 
          Third: to the Company or such other Person as is legally entitled
     thereto.
 
     The Trustee may fix a record date and payment date for any payment by it to
Securityholders pursuant to this Section.
 
SECTION 6.11  UNDERTAKING FOR COSTS.
 
     In any suit for the enforcement of any right or remedy under this Indenture
or in any suit against the Trustee for any action taken or omitted by it as
Trustee, a court in its discretion may require any party litigating the suit
other than the Trustee to file an undertaking to pay the costs of the suit, and
the court in its discretion may assess reasonable cost, including reasonable
attorneys' fees, against any party litigant in the suit, having due regard to
the merits and good faith of the claims or defenses made by the party litigant.
This Section does not apply to a suit by the Trustee, a suit by a Holder
pursuant to Section 6.07, or a suit by Holders of more than 10% in principal
amount of the Securities.
 
                                   ARTICLE 7.
 
                                    TRUSTEE
 
SECTION 7.01  ACCEPTANCE OF TRUSTS; DUTIES OF TRUSTEE.
 
     The Trustee hereby accepts the trusts imposed upon it by this Indenture and
covenants and agrees to perform the same as herein expressed.
 
     (a) If an Event of Default has occurred and is continuing, the Trustee
shall exercise such of the rights and powers vested in it by this Indenture and
the Guarantee, and use the same degree of care and skill in their exercise, as a
prudent Person would exercise or use under the circumstances in the conduct of
his or her own affairs.
 
                                      L-23
<PAGE>   245
 
     (b) Except during the continuance of an Event of Default:
 
          (1) The Trustee need perform only those duties that are specifically
     set forth in this Indenture and no others.
 
          (2) In the absence of bad faith on its part, the Trustee may
     conclusively rely, as to the truth of the statements and the correctness of
     the opinions expressed therein, upon certificates or opinions furnished to
     the Trustee and conforming to the requirements of this Indenture. However,
     the Trustee shall examine the certificates and opinions to determine
     whether or not they conform to the requirements of this Indenture.
 
     (c) The Trustee may not be relieved from liability for its own negligent
action, its own negligent failure to act or its own willful misconduct, except
that:
 
          (1) This paragraph does not limit the effect of paragraph (b) of this
     Section 7.01.
 
          (2) The Trustee shall not be liable with respect to any error of
     judgment made in good faith by a Trust Officer, unless it is proved that
     the Trustee was negligent in ascertaining the pertinent facts.
 
          (3) The Trustee shall not be liable with respect to any action it
     takes or omits to take in good faith in accordance with a direction
     received by it pursuant to Section 6.05.
 
     (d) Every provision of this Indenture that in any way relates to the
Trustee is subject to paragraphs (a), (b) and (c) of this Section 7.01.
 
     (e) The Trustee may refuse to exercise any of its rights or powers under
this Indenture at the request of any Holders unless such Holders shall have
offered to the Trustee indemnity reasonably satisfactory to it against any loss,
liability or expense. No provision of this Indenture shall require the Trustee
to expend or risk its own funds or otherwise incur any financial liability in
the performance of any of its duties hereunder, or in the exercise of its rights
or power, if it has reasonable grounds for believing, and does believe in good
faith, that repayment of such funds or adequate indemnity against such risk or
liability is not reasonably assured to it.
 
     (f) The Trustee shall not be liable for interest on any money received by
it except as expressly provided with respect to the sinking fund account or as
the Trustee may agree with the Company. Money held in trust by the Trustee need
not be segregated from other funds except to the extent required by law.
 
SECTION 7.02  RIGHTS OF TRUSTEE.
 
     (1) The Trustee may rely on any document believed by it to be genuine and
to have been signed or presented by the proper Person. The Trustee need not
investigate any fact or matter stated in the document.
 
     (2) Before the Trustee acts or refrains from acting, it may require an
Officer's Certificate and/or an Opinion of Counsel and may consult with its
counsel. The Trustee shall not be liable for any action it takes or omits to
take in good faith in reliance on such Certificate, Opinion or advice of such
counsel.
 
     (3) The Trustee may act through agents and shall not be responsible for the
misconduct or negligence of any agent appointed with due care.
 
SECTION 7.03  INDIVIDUAL RIGHTS OF TRUSTEE.
 
     The Trustee in its individual or any other capacity may become the owner or
pledgee of Securities and may otherwise deal with the Company or an Affiliate
thereof with the same rights it would have if it were not Trustee. Any Agent may
do the same with like rights. The Trustee, however, must comply with Sections
7.10 and 7.11.
 
SECTION 7.04  TRUSTEE'S DISCLAIMER.
 
     The Trustee makes no representation as to the validity or adequacy of this
Indenture or the Securities, and it shall not be responsible for any statement
in the Securities other than its certificate of authentication.
 
                                      L-24
<PAGE>   246
 
SECTION 7.05  NOTICE OF DEFAULTS.
 
     If a Default occurs and is continuing and if it is known to the Trustee,
the Trustee shall mail to each Securityholder a notice of the Default within 90
days after it occurs. Except in the case of a Default in payment of principal of
or interest on any Security, the Trustee may withhold the notice if and so long
as it in good faith determines that withholding the notice is in the interests
of Securityholders.
 
SECTION 7.06  REPORTS BY TRUSTEE TO HOLDERS.
 
     Within 60 days after each      beginning             , 1994, the Trustee
shall mail to each Securityholder as required by TIA sec. 313(c) a brief report
dated as of such date that complies with TIA sec. 313(a). The Trustee also shall
comply with TIA sec. 313(b).
 
     A copy of each report at the time of its mailing to Securityholders shall
be filed by the Trustee with the SEC and each stock exchange, if any, on which
the Securities are listed. The Company shall notify the Trustee when the
Securities are listed on any stock exchange.
 
SECTION 7.07  COMPENSATION AND INDEMNITY.
 
     The Company shall pay to the Trustee from time to time such compensation
for its services as shall be agreed upon in writing. The Trustee's compensation
shall not be limited by any law on compensation of a trustee of an express
trust. The Company shall reimburse the Trustee upon request for all reasonable
out-of-pocket expenses, advances and disbursements incurred by it. Such expenses
shall include the reasonable compensation and out-of-pocket expenses of the
Trustee's agents and counsel.
 
     Except as hereinafter provided in this paragraph, the Company shall
indemnify the Trustee against any loss or liability (including the reasonable
fees and expenses of counsel) incurred by it in connection with the
administration of this trust and the performance of its duties hereunder. The
Company need not pay any amount in respect of a settlement made without its
consent. The Trustee shall notify the Company promptly of any claim for which it
may seek indemnification. The Company need not reimburse any expense or
indemnify against any loss or liability incurred by the Trustee through the
Trustee's negligence or bad faith.
 
     To secure the Company's payment obligations in this Section, the Trustee
shall have a lien prior to the Securities on all money or property held or
collected by the Trustee except that held in trust to pay principal and interest
on particular Securities.
 
     When the Trustee incurs expenses or renders services after an Event of
Default specified in Section 6.01(6), (7), (8) or (9) occurs, the expenses and
the compensation for services are intended to constitute expenses of
administration under any Bankruptcy Law.
 
SECTION 7.08  REPLACEMENT OF TRUSTEE.
 
     A resignation or removal of the Trustee and appointment of a successor
Trustee shall become effective only upon the successor Trustee's acceptance of
appointment as provided in this Section.
 
     The Trustee may resign by so notifying the Company. The Holders of a
majority in principal amount of the Securities may remove the Trustee by so
notifying the Trustee and the Company and may appoint a successor Trustee with
the Company's consent. The Company may remove the Trustee if:
 
          (1) the Trustee fails to comply with Section 7.10;
 
          (2) the Trustee is adjudged a bankrupt or an insolvent;
 
          (3) a receiver or other public officer takes charge of the Trustee or
     its property;
 
          (4) the Trustee becomes incapable of acting; or
 
          (5) in the Company's good faith judgment, the Trustee's fees and
     expense structure for acting as such hereunder become materially
     noncompetitive.
 
                                      L-25
<PAGE>   247
 
     If the Trustee resigns or is removed or if a vacancy exists in the office
of Trustee for any reason, the Company shall promptly appoint a successor
Trustee. Within one year after the successor Trustee takes office, the Holders
of a majority in principal amount of the Securities may appoint a successor
Trustee to replace the successor Trustee appointed by the Company.
 
     If a successor Trustee does not take office within 30 days after the
retiring Trustee resigned or is removed, the retiring Trustee, the Company or
the Holders of at least 10% in principal amount of the Securities may petition
any court of competent jurisdiction for the appointment of a successor Trustee.
 
     If the Trustee fails to comply with Section 7.10, any Holder may petition
any court of competent jurisdiction for the removal of the Trustee and the
appointment of a successor Trustee.
 
     A successor Trustee shall deliver a written acceptance of its appointment
to the retiring Trustee and to the Company. Thereupon the resignation or removal
of the retiring Trustee shall become effective and the successor Trustee shall
have all the rights, powers and duties of the Trustee under this Indenture. The
successor Trustee shall mail a notice of its succession to Securityholders. The
retiring Trustee shall promptly transfer all property held by it as Trustee to
the successor Trustee, subject to the lien provided for in Section 7.07.
 
SECTION 7.09  SUCCESSOR TRUSTEE BY MERGER, ETC.
 
     If the Trustee consolidates, merges or converts into, or transfers all or
substantially all of its corporate trust business to another corporation, the
successor corporation without any further act shall be the successor Trustee.
 
SECTION 7.10  ELIGIBILITY; DISQUALIFICATION.
 
     This Indenture shall always have a Trustee who satisfies the requirements
of TIA sec. 310(a)(1). The Trustee shall always have a combined capital and
surplus of at least $50,000,000 as set forth in its most recent published annual
report of condition. The Trustee shall comply with TIA sec. 310(b), including
the optional provision permitted by the second sentence of TIA sec. 310(b)(9).
 
SECTION 7.11  PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY.
 
     The Trustee shall comply with TIA sec. 311(a), excluding any creditor
relationship listed in TIA sec. 311(b). A Trustee who has resigned or been
removed shall be subject to TIA sec. 311(a) to the extent indicated.
 
                                   ARTICLE 8.
 
                             DISCHARGE OF INDENTURE
 
SECTION 8.01  TERMINATION OF COMPANY'S OBLIGATIONS.
 
     All of the Company's obligations under this Indenture shall terminate when
all Securities previously authenticated and delivered (other than mutilated,
destroyed, lost or stolen Securities which have been replaced or paid) have been
delivered to the Trustee for cancellation or if:
 
          (1) the Securities mature within six months or all of them are to be
     called for redemption within six months;
 
          (2) the Company irrevocably deposits in trust with the Trustee,
     pursuant to an irrevocable trust and security agreement in form and
     substance reasonably satisfactory to the Trustee, money or U.S. Government
     Obligations sufficient to pay principal of and interest on the Securities
     to maturity or redemption, as the case may be, and all other sums payable
     by the Company to the Holders of the Securities hereunder. The Company may
     make the deposit only during the six-month period. Immediately after making
     the deposit, the Company shall give notice of such event of the Holders;
 
                                      L-26
<PAGE>   248
 
          (3) the Company has paid or caused to be paid all sums then payable by
     the Company to the Trustee hereunder as of the date of such deposit;
 
          (4) the Company has delivered to the Trustee an Officer's Certificate
     stating that all conditions precedent provided for herein relating to the
     satisfaction and discharge of this Indenture have been complied with; and
 
          (5) the Company has delivered to the Trustee either (i) an unqualified
     Opinion of Counsel, stating that the Holders of the Securities (a) will not
     recognize income, gain or loss for Federal income tax purposes as a result
     of such deposit (and the defeasance contemplated in connection therewith)
     and (b) will be subject to Federal income tax on the same amounts and in
     the same manner and at the same times as would have been the case if such
     deposit and defeasance had not occurred, or (ii) an applicable favorable
     ruling to that effect received from or published by the Internal Revenue
     Service.
 
Notwithstanding the foregoing, the Company's obligations in Sections 2.03, 2.04,
2.05, 2.06, 2.07, 4.01, 7.07, 7.08 and 8.03 shall survive until the Securities
are no longer outstanding and the Company's obligations pursuant to Sections
7.07 and 8.03 shall survive any such termination.
 
     After a deposit pursuant to this Section 8.01, the Trustee upon request
shall acknowledge in writing the discharge of the Company's obligations under
the Securities and this Indenture except for those surviving obligations
specified above.
 
     In order to have money available on a payment date to pay principal or
interest on the Securities, the U.S. Government Obligations shall be payable as
to principal or interest on or before such payment date in such amounts as will
provide the necessary money.
 
SECTION 8.02  APPLICATION OF TRUST MONEY.
 
     The Trustee shall hold in trust money or U.S. Government Obligations
deposited with it pursuant to Section 3.05, 3.08, 3.09 and 8.01. It shall apply
the deposited money and the money from U.S. Government Obligations through the
Paying Agent and in accordance with this Indenture to the payment of principal
of and interest on the Securities.
 
SECTION 8.03  REPAYMENT TO COMPANY.
 
     The Trustee and the Paying Agent shall promptly pay to the Company upon
request any excess money or securities held by them at any time. The Trustee and
the Paying Agent shall pay to the Company upon request any money held by them
for the payment of principal or interest that remains unclaimed for two years;
provided, however,that the Trustee or such Paying Agent, before being required
to make any such repayment, may, at the expense of the Company, cause to be
published once in a newspaper of general circulation in The City of New York or
cause to be mailed to each Holder, a notice stating that such money remains and
that, after a date specified therein, which shall not be less than 30 days from
the date of such publication or mailing, any unclaimed balance of such money
then remaining will be repaid to the Company. After payment to the Company,
Securityholders entitled to the money must look to the Company for payment as
general creditors unless an applicable abandoned property law designates another
Person.
 
SECTION 8.04  REINSTATEMENT.
 
     If the Trustee or Paying Agent is unable to apply any money or U.S.
Government Obligations in accordance with Section 8.01 by reason of any legal
proceeding or by reason of any order or judgment of any court or governmental
authority enjoining, restraining or otherwise prohibiting such application, the
Company's obligations under this Indenture and the Securities shall be revived
and reinstated as though no deposit has occurred pursuant to Section 8.01 until
such time as the Trustee or Paying Agent is permitted to apply all such money or
U.S. Government Obligations in accordance with Section 8.01; provided, however,
that if the Company has made any payment of interest on or principal of any
Securities because of the reinstatement of obligations, the Company shall be
subrogated to the rights of the Holders of such Securities to receive such
payment from the money or U.S. Government Obligations held by the Trustee or
Paying Agent.
 
                                      L-27
<PAGE>   249
 
                                   ARTICLE 9.
 
                                   AMENDMENTS
 
SECTION 9.01  WITHOUT CONSENT OF HOLDERS.
 
     The Company, with the consent of the Trustee, may amend or supplement this
Indenture or the Securities without notice to or the consent of any
Securityholder:
 
     (1) to cure any ambiguity, omission, defect or inconsistency;
 
     (2) to comply with Section 5.01;
 
     (3) to provide for uncertified securities; or
 
     (4) to make any change that does not adversely affect the rights of any
Securityholder.
 
SECTION 9.02  WITH CONSENT OF HOLDERS.
 
     The Company, with the consent of the Trustee, may amend or supplement this
Indenture or the Securities without notice to any Securityholder but with the
written consent of the Holders of at least 66 2/3% (except as hereinafter
provided) of the principal amount of the Securities. Subject to Section 6.07,
the Holders of a majority (except as hereinafter provided) in principal amount
of the Securities may waive compliance by the Company with any provision of this
Indenture or the Securities without notice to all Securityholders. However,
without the consent of each Securityholder affected, no amendment, supplement or
waiver, including a waiver pursuant to Section 6.04, may:
 
     (1) reduce the amount of Securities whose Holders must consent to an
amendment, supplement or waiver;
 
     (2) reduce the rate of or change the time for payment of interest on any
Security;
 
     (3) reduce the principal of or change the fixed maturity of any Security or
alter the redemption provisions with respect thereto;
 
     (4) waive a default in the payment of principal of, premium, if any, or
interest on any Security;
 
     (5) make any Security payable in money other than that stated in the
Security; or
 
     (6) make any change in Section 6.04, Section 6.07 or this Section 9.02.
 
     Promptly after an amendment under this Section becomes effective, the
Company shall mail to the Securityholders a notice briefly describing the
amendment.
 
     It shall not be necessary for the consent of the Holders under this Section
to approve the particular form of any proposed amendment or supplement, but it
shall be sufficient if such consent approves the substance thereof.
 
SECTION 9.03  COMPLIANCE WITH TRUST INDENTURE ACT.
 
     Every amendment to this Indenture or the Securities shall comply with the
TIA as then in effect.
 
SECTION 9.04  REVOCATION AND EFFECT OF CONSENTS.
 
     Until an amendment, supplement or waiver becomes effective, a consent to it
by a Holder of a Security is a continuing consent by the Holder and every
subsequent Holder of a Security or portion of a Security that evidences the same
debt as the consenting Holder's Security, even if notation of the consent is not
made on any Security. However, any such Holder or subsequent Holder may revoke
the consent as to his Security, or portion of a Security if the Trustee receives
the notice of revocation before the date the amendment, supplement or waiver
becomes effective. An amendment, supplement or waiver becomes effective in
accordance with its terms.
 
                                      L-28
<PAGE>   250
 
     After an amendment, supplement or waiver becomes effective with respect to
the Securities, it shall bind every Securityholder unless it makes a change
described in any of clauses (1) through (6) of Section 9.02. In that case the
amendment, supplement or waiver shall bind each Holder of a Security who has
consented to it and, provided that notice of such amendment, supplement or
waiver is reflected on a Security, that evidences the same debt as the
consenting Holder's Security, every subsequent Holder of a Security, or portion
of a Security that evidences the same debt as the consenting Holder's Security.
 
SECTION 9.05  NOTATION ON OR EXCHANGE OF SECURITIES.
 
     If an amendment, supplement or waiver changes the terms of a Security, the
Trustee may require the Holder of the Security to deliver it to the Trustee. The
Trustee may place an appropriate notation on the Security about the changed
terms and return it to the Holder. Alternatively, if the Company or the Trustee
so determines, the Company in exchange for the Security shall issue and the
Trustee shall authenticate a new Security that reflects the changed terms.
 
SECTION 9.06  TRUSTEE PROTECTED.
 
     The Trustee need not sign any amendment, supplement or waiver authorized
pursuant to this Article that adversely affects the Trustee's rights. The
Trustee shall be entitled to receive and rely upon an Opinion of Counsel and an
Officer's Certificate that any supplemental indenture complies with the
Indenture.
 
                                  ARTICLE 10.
 
                                   GUARANTEE
 
SECTION 10.01  GUARANTEE.
 
     Certain of the Company's Subsidiaries have entered into a Guarantee for the
benefit of the Securityholders. Under the terms of the Guarantee, the
Subsidiaries guarantee to the Securityholders the Company's performance of its
obligations hereunder.
 
     Each Securityholder, by accepting a Security, agrees to all of the terms
and provisions of the Guarantee pursuant to which the Securities will be
guaranteed, as the same may be in effect or may be amended from time to time
pursuant to its terms.
 
SECTION 10.02  FURTHER ASSURANCES.
 
     The Company and certain of its Subsidiaries have executed and delivered and
will execute and deliver all such instruments and documents, and have done and
will do all such acts and other things, at the Company's expense, as may be
necessary or desirable, or that the Trustee may reasonably request, to give full
force and effect to the Guarantee, in the case of the existence of an Event of
Default, to enable the Trustee to exercise and enforce the Securityholders'
rights and remedies with respect to the Guarantee.
 
SECTION 10.03  AUTHORIZATION OF ACTIONS TO BE TAKEN BY THE TRUSTEE UNDER THE
GUARANTEE.
 
     The Trustee may, in its sole discretion and without the consent of the
Securityholders take all actions it deems necessary or appropriate in order to
(i) enforce any of the terms of the Guarantee and (ii) collect and receive any
and all amounts payable in respect of the obligations of the Company hereunder.
Subject to the provisions of the Guarantee, the Trustee shall have power to
institute and to maintain such suits and proceedings as it may deem expedient to
preserve or protect its interests and the interests of the Securityholders.
 
                                      L-29
<PAGE>   251
 
SECTION 10.04  AUTHORIZATION OF RECEIPT OF FUNDS BY THE TRUSTEE UNDER THE
GUARANTEE.
 
     The Trustee is authorized to receive any funds for the benefit of
Securityholders distributed under the Guarantee, and to make further
distribution of such funds to the Holders according to the provisions of this
Indenture.
 
SECTION 10.05  TERMINATION OF GUARANTEE.
 
     Upon the payment in full of all obligations of the Company under this
Indenture and the Securities, the Trustee shall, at the request of the Company,
deliver a certificate to the Subsidiaries which executed the Guarantee stating
that such obligations have been paid in full.
 
                                  ARTICLE 11.
 
                                 MISCELLANEOUS
 
SECTION 11.01  TRUST INDENTURE ACT CONTROLS.
 
     If any provision of this Indenture limits, qualifies or conflicts with
another provision which is required to be included in this Indenture by the TIA,
the required provision shall control.
 
SECTION 11.02  NOTICES.
 
     Any notice or communication by the Company or the Trustee to the other is
duly given if in writing and when delivered in person, mailed by first-class
mail or by express delivery to the other's address stated in this Section 11.02.
The Company or the Trustee by notice to the other may designate additional or
different addresses for subsequent notices or communications.
 
     Any notice or communication to a Securityholder shall be mailed by
first-class mail to his or her address shown on the register kept by the
Registrar. Failure to mall a notice or communication to a Securityholder or any
defect in it shall not affect its sufficiency with respect to other
Securityholders.
 
     If a notice or communication is mailed in the manner provided above within
the time prescribed, it is duly given, whether or not the addressee receives it.
 
     If the Company mails a notice or communication to Securityholders, it shall
mail a copy to the Trustee and each Agent at the same time.
 
     All notices or communications shall be in writing.
 
     The Company's address is:
 
                     ---------------------------------------------------------
 
                     ---------------------------------------------------------
 
                     ---------------------------------------------------------
 
                     ---------------------------------------------------------
 
     The Trustee's address is:
 
                     ---------------------------------------------------------
 
                     ---------------------------------------------------------
 
                     ---------------------------------------------------------
 
                     ---------------------------------------------------------
 
                                      L-30
<PAGE>   252
 
SECTION 11.03  COMMUNICATION BY HOLDERS WITH OTHER HOLDERS.
 
     Securityholders may communicate pursuant to TIA sec. 312(b) with other
Securityholders with respect to their rights under this Indenture or the
Securities. The Company, the Trustee, the Registrar and anyone else shall have
the protection of TIA sec. 312(c).
 
SECTION 11.04  ACTION BY SECURITYHOLDERS.
 
     Whenever in this Indenture it is provided that the Holders of a specified
percentage in aggregate principal amount of the Securities may take any action
(including the making of any demand or request, the giving of any notice,
consent or waiver or the taking of any other action), the fact that at the time
of taking any such action the Holders of such specified percentage have joined
therein may be evidenced by (a) any instrument or any number of instruments of
similar tenor executed by Holders of Securities in person or by agent or proxy
appointed in writing, or (b) by the record of the Holders of Securities in favor
thereof, at any meeting of Holders duly called and held in accordance with the
provisions of Article 12, or (c) by a combination of such instrument or
instruments and any such record of such meeting of Holders, but in each case
only to the extent that the Holders of Securities shall not have revoked such
action, consent or vote pursuant to Section 9.04 and Section 11.06.
 
SECTION 11.05  PROOF OF EXECUTION OF INSTRUMENTS AND OF HOLDING OF SECURITIES.
 
     Proof of the execution of any instrument by a Holder of Securities or his
or her agent or proxy and proof of the holding by any Person of any of the
Securities shall be sufficient if made in the following manner:
 
          (1) The fact and date of the execution by any such Person of any
     instrument may be proved by the certificate of any notary public or other
     officer of any jurisdiction authorized to take acknowledgements of deeds to
     be recorded in such jurisdiction that the Person executing such instrument
     acknowledged to him or her the execution thereof, or by an affidavit of a
     witness to such execution sworn to before any such notary or other such
     officer. Such certificate or affidavit shall also constitute sufficient
     proof of the authority of the Person executing any instrument in cases
     where Securities are not held by Persons in their individual capacities.
 
          (2) The fact and date of execution of any such instrument may also be
     proved in any other manner which the Trustee deems sufficient.
 
          (3) The ownership of Securities shall be proved by the register of
     such Security or by a certificate of the Registrar thereof.
 
          (4) The Trustee shall not be bound to recognize any Person as a
     Securityholder unless his or her title to any Security is proved in the
     manner provided in this Article 11.
 
     The Trustee may require such additional proof of any matter referred to in
this Section 11.05 as it shall deem necessary.
 
SECTION 11.06  REVOCATION OF CONSENTS; FUTURE HOLDERS BOUND.
 
     Subject to Section 9.04, at any time prior to (but not after) the
evidencing to the Trustee, as provided in Section 11.04, of the taking of any
action by the Holders of the required percentage of the aggregate principal
amount of the Securities specified in this Indenture in connection with such
action, any Holder of a Security which is shown by the evidence to be included
in the Securities the Holders of which have consented to such action may, by
filing written notice with the Trustee at its principal office and upon proof of
holding as provided in Section 11.05, revoke such action so far as concerns such
Security. Except as aforesaid, any such action taken by the Holder of any
Security shall be conclusive and binding upon such Holder and upon all future
holders and owners of such Security and of any Security issued in exchange or
substitution therefor, irrespective of whether or not any notation in regard
thereto is made upon such Security. Any action taken by the Holders of the
required percentage of the aggregate principal amount of the Securities
specified in this
 
                                      L-31
<PAGE>   253
 
Indenture in connection with such action shall be conclusive and binding upon
the Company, the Trustee and the holders of all the Securities.
 
SECTION 11.07  OBLIGATION TO DISCLOSE BENEFICIAL OWNERSHIP OF SECURITIES.
 
     All Securities shall be held and owned upon the express condition that,
upon demand of any regulatory agency having jurisdiction over the Company, and
pursuant to law or regulation empowering such agency to assert such demand, any
registered Holder shall disclose to such agency the identity of the beneficial
owner of all Securities held thereby.
 
SECTION 11.08  CERTIFICATE AND OPINION AS TO CONDITIONS PRECEDENT.
 
     Upon any request or application by the Company to the Trustee to take any
action under this Indenture the Company shall furnish to the Trustee:
 
          (1) an Officer's Certificate stating that, in the opinion of the
     signer, all conditions precedent, if any, provided for in this Indenture
     relating to the proposed action have been complied with; and
 
          (2) an Opinion of Counsel stating that, in the opinion of such
     counsel, all such conditions precedent have been complied with.
 
     Each signer of an Officer's Certificate or an Opinion of Counsel may (if so
stated) rely upon an Opinion of Counsel as to legal matters and an Officer's
Certificate as to factual matters if such signer reasonably and in good faith
believes in the accuracy of the document relied upon.
 
SECTION 11.09  STATEMENTS REQUIRED IN CERTIFICATE OR OPINION.
 
     Each certificate or opinion with respect to compliance with a condition or
covenant provided for in this Indenture shall include:
 
          (1) a statement that the Person making such certificate or opinion has
     read such covenant or condition;
 
          (2) a brief statement as to the nature and scope of the examination or
     investigation upon which the statements or opinions contained in such
     certificate or opinion are based;
 
          (3) a statement that, in the opinion of such Person, he or she has
     made such examination or investigation as is necessary to enable such
     Person to express an informed opinion as to whether or not such covenant or
     condition has been complied with; and
 
          (4) a statement as to whether or not, in the opinion of such Person,
     such condition or covenant has been complied with.
 
SECTION 11.10  RULES BY TRUSTEE AND AGENTS.
 
     The Trustee may make reasonable rules for action by or at a meeting of
Securityholders. The Registrar or Paying Agent may make reasonable rules and set
reasonable requirements for their respective functions.
 
SECTION 11.11  LEGAL HOLIDAYS.
 
     A "Legal Holiday" is a Saturday, a Sunday or a day on which banking
institutions are not required to be open in The City of New York, in the State
of New York or in the city in which the Trustee or any Paying Agent under this
Indenture administers its corporate trust business. If a payment date is a Legal
Holiday at a place of payment, payment may be made at that place on the next
succeeding day that is not a Legal Holiday, and no interest shall accrue on that
payment for the intervening period.
 
     A "Business Day" is a day other than a legal Holiday.
 
                                      L-32
<PAGE>   254
 
SECTION 11.12  NO RECOURSE AGAINST OTHERS.
 
     All liability of any director, officer, employee or stockholder, as such,
of the Company with respect to the Securities is waived and released.
 
SECTION 11.13  DUPLICATE ORIGINALS.
 
     The parties may sign any number of copies of this Indenture. Each signed
copy shall be an original, but all of them together represent the same
agreement.
 
SECTION 11.14  GOVERNING LAW.
 
     The laws of the State of New York, without regard to principles of
conflicts of law, shall govern this Indenture and the Securities.
 
SECTION 11.15  NO ADVERSE INTERPRETATION OF OTHER AGREEMENTS.
 
     This Indenture may not be used to interpret another indenture, loan or debt
agreement of the Company or a Subsidiary. Any such indenture, loan or debt
agreement may not be used to interpret this Indenture.
 
SECTION 11.16  SUCCESSORS.
 
     All agreements of the Company in this Indenture and the Securities shall
bind its successors. All agreements of the Trustee in this Indenture shall bind
its successors.
 
SECTION 11.17  SEPARABILITY.
 
     In case any provision in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby
and a Holder shall have no claim therefor against any party hereto.
 
SECTION 11.18  TABLE OF CONTENTS, HEADINGS, ETC.
 
     The Table of Contents, Cross-Reference Table and headings of the Articles
and Sections of this Indenture have been inserted for convenience of reference
only, are not to be considered a part hereof, and shall in no way modify or
restrict any of the terms or provisions hereof.
 
                                  ARTICLE 12.
 
                       MEETINGS OF HOLDERS OF SECURITIES
 
SECTION 12.01  PURPOSES OF MEETINGS.
 
     A meeting of Holders of Securities may be called at any time and from time
to time pursuant to the provisions of this Article 12 for any of the following
purposes:
 
     (a) to give any notice to the Company or to the Trustee, or to give any
direction to the Trustee, or to waive any non-performance hereunder, and its
consequences, or to take any other action authorized to be taken by Holders of
Securities pursuant to any of the provisions of this Indenture;
 
     (b) to remove the Trustee and appoint a successor trustee pursuant to the
provisions of Section 7.08;
 
     (c) to consent to the execution of an indenture or indentures supplemental
hereto pursuant to the provisions of Article 9;
 
     (d) to take any other action authorized to be taken by or on behalf of the
Holders of any specified aggregate principal amount of the Securities under any
other provision of this Indenture or under applicable law.
 
                                      L-33
<PAGE>   255
 
SECTION 12.02  CALL OF MEETINGS BY TRUSTEE.
 
     The Trustee may at any time call a meeting of Holders of Securities to take
any action specified in Section 12.01, to be held at such time and at such place
in the State of New York, as the Trustee shall determine. Notice of each meeting
of the Holders of Securities, setting forth the time and the place of such
meeting and, in general terms, the action proposed to be taken at such meeting,
shall be mailed by the Trustee to the Holders of the Securities, not less than
20 nor more than 60 days prior to the date fixed for the meeting, at their last
addresses as they shall appear on the register of the Securities.
 
SECTION 12.03  CALL OF MEETINGS BY COMPANY OR SECURITY HOLDERS.
 
     If at any time the Company, pursuant to a resolution of its Board of
Directors, or the holders of at least twenty percent in aggregate principal
amount of the Securities then outstanding, shall have requested the Trustee to
call a meeting of Holders of Securities to take any action authorized in Section
12.01, by written request setting forth in reasonable detail the action proposed
to be taken at the meeting, and the Trustee shall not have mailed notice of such
meeting within twenty days after receipt of such request, then the Company or
the Holders of Securities in the amount above specified, as the case may be, may
determine the time and the place in the State of New York for such meeting, and
may call such meeting by mailing notice thereof as provided in Section 12.02.
 
SECTION 12.04  PERSONS ENTITLED TO VOTE AT MEETING.
 
     To be entitled to vote at any meeting of Holders of Securities, a person
shall (a) be a Holder of Securities or (b) be a person appointed by an
instrument in writing as proxy by a Holder of Securities. The only persons who
shall be entitled to be present or speak at any meeting of the Holders of the
Securities shall be the persons entitled to vote at such meeting and their
counsel and any representatives of the Company and its counsel.
 
SECTION 12.05  REGULATIONS FOR MEETING.
 
     Notwithstanding any other provisions of this Indenture, the Trustee may
make such reasonable regulations as it may deem advisable for any meeting of
Holders of the Securities in regard to the appointment of proxies, the proof of
the holding of Securities, the appointment and duties of inspectors of votes,
the submission and examination of proxies and other evidence of the right to
vote, and such other matters concerning the conduct of the meeting as it shall
think fit. Except as otherwise permitted or required by any such regulations,
the holding of Securities shall be proved in the manner specified in Section
11.05 and the appointment of any proxy shall be proved in the manner specified
in such Section 11.05 or by having the signature of the person executing the
proxy witnessed or guaranteed by any bank, banker, trust company or New York
Stock Exchange, Inc. member firm satisfactory to the Trustee.
 
     The Trustee shall, by an instrument in writing, appoint a temporary
chairman of the meeting, unless the meeting shall have been called by the
Company or by Holders of the Securities as provided in Section 12.03, in which
case the Company or the Holders of the Securities calling the meeting, as the
case may be, shall in like manner appoint a temporary chairman, and a permanent
chairman and a permanent secretary of the meeting shall be elected by vote of
the Holders of a majority in principal amount of the Securities represented at
the meeting and entitled to vote.
 
     At any meeting of Holders of Securities, the presence of persons holding or
representing Securities in an aggregate principal amount sufficient to take
action upon the business for the transaction of which such meeting was called
shall be necessary to constitute a quorum; but, if less than a quorum be
present, the persons holding or representing a majority in aggregate principal
amount of the Securities represented at the meeting may adjourn such meeting
with the same effect, for all intents and purposes, as though a quorum had been
present.
 
                                      L-34
<PAGE>   256
 
                                   SIGNATURES
 
     IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be
duly executed, and their respective corporate seals to be hereunto affixed and
attested, all as of the day and year first above written.
 
                                          LONE STAR INDUSTRIES, INC.
 
                                          By:
                                            ------------------------------------
                                              Title:
 
[SEAL]
 
Attest:
 
- -------------------------------------
Title:
 
                                                    BANK
                                          ---------

                                          By:
                                            ------------------------------------
                                              Title:
 
[SEAL]
 
Attest:
 
- -------------------------------------
Title:
 
                                      L-35
<PAGE>   257
 
                                                                       EXHIBIT A
REGISTERED                     [FACE OF SECURITY]                     REGISTERED
NUMBER                                                                   DOLLARS
 
                           LONE STAR INDUSTRIES, INC.
 
                            10% SENIOR NOTE DUE 2003
 
     LONE STAR INDUSTRIES, INC., a Delaware corporation (herein called the
"Company"), for value received, hereby promises to pay to             or
registered assigns, the principal sum of           Dollars on             ,*
2003, and to pay interest thereon as provided on the reverse hereof, until the
principal hereof is paid or duly provided for.
 
Interest Payment Dates:      and      of each year, commencing             ,
1994
 
Record Dates:
 
     The provisions on the back of this certificate are incorporated as if set
forth on the face hereof.
 
     IN WITNESS WHEREOF, LONE STAR INDUSTRIES, INC., has caused this instrument
to be duly signed under its corporate seal.
 
[SEAL]
                                       LONE STAR INDUSTRIES, INC.
 
                                       By:
                                       -----------------------------------------
                                           Title:
 
                                       By:
                                       -----------------------------------------
                                           Title:
 
TRUSTEE'S CERTIFICATE OF AUTHENTICATION
 
This is one of the Securities referred
to in the within-mentioned Indenture.
 
- -------------  BANK
 
                           as Trustee
 
By:
- ------------------------------------------
                  Signatory
 
Dated:
- ------------------------------------------
- ---------------
* [7 months] after anniversary of Effective Date
 
                                      LA-1
<PAGE>   258
 
                             [REVERSE OF SECURITY]
 
                           LONE STAR INDUSTRIES, INC.
 
                            10% SENIOR NOTE DUE 2003
 
     1. Interest.  Lone Star Industries, Inc., a Delaware corporation (the
"Company"), promises to pay interest on the principal amount of this Security at
the rate per annum shown above. The Company will pay interest semi-annually in
arrears on              and              of each year, commencing             ,
1994. Interest on the Securities will accrue from the most recent date to which
interest has been paid (or, if no interest has been paid, from the Effective
Date, as defined in the below-mentioned Indenture). Interest on overdue
principal shall accrue at the rate per annum of 11% from the due date until paid
in full. Interest shall be computed on the basis of a 360-day year of 12 30-day
months.
 
     2. Method of Payment.  The Company will pay interest on the Securities
(except defaulted interest) to the persons who are registered Holders of
Securities at the close of business on the record date set forth on the face of
this Security next preceding the applicable interest payment date. Holders must
surrender Securities to a Paying Agent to collect principal payments. The
Company will pay principal and interest in money of the United States that at
the time of payment is legal tender for payment of public and private debts.
However, the Company may pay principal and interest by check payable in such
money. It may mail an interest check to a Holder's registered address.
 
     3. Paying Agent and Registrar.  Initially,
Bank (the "Trustee") will act as Paying Agent and Registrar. The Company may
change any Paying Agent, Registrar or coregistrar without notice. The Company
may act in any such capacity.
 
     4. Indenture.  The Company has issued the Securities under an Indenture
dated as of              (the "Indenture") between the Company and the Trustee.
The terms of the Securities include those stated in the Indenture and those made
part of the Indenture by reference to the Trust Indenture Act of 1939 (15 U.S.
Code sec.sec. 77aaa = 7 = 7bbbb) (the "Act") as in effect on the date of the
Indenture. The Securities are subject to all such terms, and Securityholders are
referred to the Indenture and the Act for a statement of such terms. The
Securities are obligations of the Company limited to up to $75,000,000 aggregate
principal amount (except for Securities issued in substitution for destroyed,
mutilated, lost or stolen Securities). Terms used herein which are defined in
the Indenture have the meanings assigned to them in the Indenture.
 
     5. Voluntary Prepayments or Redemption.  The Securities may be redeemed at
the option of the Company in whole at any time or in part from time to time at
the principal amount plus accrued and unpaid interest to the date of such
optional redemption. The Securities may also be redeemed or prepaid by purchase
by the Company on the open market from time to time without penalty or premium.
 
     6. Sinking Fund.  The Company must make three payments of $10,000,000 each
into a specified sinking fund provided for in the Indenture. The first payment
of $10,000,000 shall be made on [            ],* 2000, the second on [
  ], 2001, and the third on [            ], 2002. Payments pursuant to this
paragraph shall be made to the in accordance with the provisions of the
Indenture. The amount of any sinking fund payment the Company is required to
make may be reduced by the principal amount of any Securities that the Company
has optionally redeemed or purchased and delivered to the Trustee for
cancellation and that have not been previously credited against redemptions or
purchases upon a Sale of Assets or required sinking fund payments.
 
     7. Mandatory Redemption Upon Sale of Assets.  Within 120 days after the
consummation of a Sale of Assets, the Company shall deposit with the Trustee the
Net Proceeds (after setting aside a sufficient amount of such proceeds as to
leave the Company with $5 million in net working capital) and apply them to
redeem that principal amount of Securities such that the aggregate Redemption
Price, plus accrued and unpaid interest to the redemption date, of such
Securities equals such Net Proceeds (after setting aside such working capital
reserves). With the approval of the Board of Directors, the Company may before
or after such Sale of Assets, in lieu of making such deposit and redemptions
provided for in this Section 7, in whole or in part, the Company may deposit
with the Trustee for cancellation some or all of the Securities acquired through
open
 
                                      LA-2
<PAGE>   259
 
market purchases of Securities, in a principal amount equal to the principal
amount of securities which could have been redeemed with such amount of Net
Proceeds. The principal amount of Securities that the Company is otherwise
required to redeem or purchase for cancellation upon any Sale of Assets may be
reduced based on the Securities that the Company has optionally redeemed or
purchased and so delivered to the Trustee for cancellation and that have not
been previously credited against redemptions or purchases upon a Sale of Assets
or required sinking fund payments.
 
     8. Guarantee.  The Securityholders are the beneficiaries of a Guarantee
made by certain Subsidiaries of the Company. A Securityholder by accepting this
Note agrees to all of the terms and conditions of the Guarantee.
 
     9. Denominations, Transfer Exchange.  The Securities are in registered form
without coupons in denominations of $1,000 and whole multiples of $1,000. The
transfer of Securities may be registered and Securities may be exchanged as
provided in the Indenture. The Registrar may require a Holder, among other
things, to furnish appropriate endorsements and transfer documents. No service
charge shall be made for any such registration or transfer or exchange, but the
Company may require payment of a sum sufficient to cover any tax or other
governmental charge payable in connection therewith. The Registrar need not
exchange or register the transfer of any Security selected for redemption in
whole or in part (except the unredeemed portion of securities being redeemed in
part). Also, it need not exchange or register the transfer of any Securities for
a period of 15 days before a selection of Securities to be redeemed.
 
     10. Persons Deemed Owners.  The registered Holder of this Note may be
treated as its owner for all purposes.
 
     11. Merger or Consolidation.  The Company and its Restricted Subsidiaries,
as a whole, may not consolidate or merge with or into, or sell, assign, transfer
or lease all or substantially all of its assets to another person unless: (i)
the person is an entity organized and existing under the laws of the United
States, any state thereof or the District of Columbia; and (ii) such entity
assumes by supplemental indenture all the obligations of the Company under the
Securities and the Indenture.
 
     12. Amendments and Waivers.  Subject to certain exceptions, the Indenture
or the Securities may be amended with the consent of the Holders of at least
66 2/3% of the principal amount of the Securities outstanding, and certain
existing defaults may be waived with the consent of the Holders of 66 2/3% of
the principal amount of the Securities. Without the consent of any
Securityholder, the Indenture or the Securities may be amended to cure any
ambiguity, omission, defect or inconsistency, to provide for uncertificated
Securities in addition to certificated Securities, to comply with Section 5.01
of the Indenture or to make any change that does not adversely affect the right
of any Securityholder.
 
     13. Defaults and Remedies.  An Event of Default is: default in the payment
of interest on any Security when the same becomes due and payable, whether at
maturity, in connection with any redemption, by acceleration or otherwise, and
such default continues for a period of 30 days; default in the payment of the
principal of any Security when the same becomes due and payable, whether at
maturity, in connection with any redemption, by acceleration or otherwise, which
failure continues for a period of 30 days after either notice shall have been
given to the Company or the date on which the Company had Actual Knowledge of
such failure; or failure by the Company or any Restricted Subsidiary to observe
or perform in any material respect any of its other covenants or agreements in
the Securities or the Indenture, which further continues for a period of 30 days
after either notice shall have been given to the Company or the date on which
the Company had Actual Knowledge of such failure; failure by the Company or any
of its Restricted Subsidiaries to pay when due any principal or interest on any
Indebtedness with an aggregate outstanding principal amount in excess of $5
million, which default continues for the greater of any period of grace
applicable thereto or 60 days from the date of such default; a default or event
of default, as defined in one or more indentures, agreements or other
instruments evidencing or under which the Company or any of its Restricted
Subsidiaries individually or collectively have outstanding at least $5 million
aggregate principal amount of Indebtedness and such Indebtedness shall have been
accelerated so that it is due and payable prior to the date on which it would
otherwise have become due and payable, and such acceleration shall not be
rescinded or annulled within 60 days after either notice shall have been given
to the Company or the Company had actual knowledge
 
                                      LA-3
<PAGE>   260
 
of such acceleration, unless cured or waived; entry of one or more final
judgments against the Company or any of its Restricted Subsidiaries for payments
of money which in the aggregate exceed $5 million, by a court of competent
jurisdiction and such judgments are not rescinded, annulled, stayed or
discharged within 90 days; the Company and its Restricted Subsidiaries, taken as
a whole, shall become insolvent; the commencement of a voluntary case under the
Federal Bankruptcy law; or the occurrence of certain other events under the
Bankruptcy law, including but not limited to the entry of a judgment for relief
in respect of the Company or any of its material Restricted Subsidiaries by a
court of competent jurisdiction which remains unstayed and in effect for 90
days.
 
     14. Trustee Dealings with Company.                                Bank, the
Trustee under the Indenture, or any banking institution serving as successor
Trustee thereunder, in its individual or any other capacity, may make loans to,
accept deposits from, and perform services for the Company or its Affiliates and
Restricted Subsidiaries, and may otherwise deal with the Company or its
Affiliates and Restricted Subsidiaries, as if it were not Trustee.
 
     15. No Recourse Against Others.  No director, officer, employee, or
stockholder, as such, of the Company shall have any liability for any
obligations of the Company under the Securities or the indenture or for any
claim based on, in respect of or by reason of such obligations or their
creation. Each Securityholder by accepting a Security waives and releases all
such liability. The waiver and release are part of the consideration for the
issue of the Securities.
 
     16. Authentication.  This Security shall not be valid until authenticated
by the manual signature of the Trustee or an authenticating agent.
 
     17. Abbreviations.  Customary abbreviations may be used in the name of a
Securityholder or an assignee, such as: TEN COM (= tenants in common), TEN ENT
(= tenants by the entireties,) JT TEN (= joint tenants with right of
survivorship and not as tenants in common), CUST (= Custodian), and U/G/M/A (=
Uniform Gifts to Minors Act).
 
     THE COMPANY WILL FURNISH TO ANY SECURITYHOLDER UPON WRITTEN REQUEST AND
WITHOUT CHARGE A COPY OF THE INDENTURE. REQUESTS MAY BE MADE TO: LONE STAR
INDUSTRIES, INC.
 
                                      LA-4
<PAGE>   261
 
     ASSIGNMENT FORM
 
To assign this Security, fill in the form below:
 
I or we assign and transfer this Security to:
 
- ------------------------------------------------------------------------
 
- ------------------------------------------------------------------------
 
- ------------------------------------------------------------------------
(Print or type assignee's name, address and zip code)
 
- ------------------------------------------------------------------------
 
- ------------------------------------------------------------------------
(Insert Assignee's Soc. Sec. or Tax I.D. No.)
 
and irrevocably appoint
agent to transfer this Security on the books of the Company.
The agent may substitute another to act for him or her.

<TABLE> 
...........................................................................................
 

<S>                                <C>
Date:                              Signature(s): 
     ----------------------                     ------------------------------------------
                                                (Sign exactly as your name(s) appear on the
                                                other side of this Security)

Signature(s) guaranteed by:        -----------------------------------------------------------
                                   (All signatures must be guaranteed by a member of a
                                   national securities exchange or of the National Association
                                   of Securities Dealers, Inc. or by a commercial bank or
                                   trust company located in the United States)
</TABLE>
 
                                      LA-5
<PAGE>   262
 
                                   EXHIBIT M
<PAGE>   263
 
                                                                       EXHIBIT M
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                             ROSEBUD HOLDINGS, INC.
 
                                      AND
 
                                                     BANK
 
                                       AS
 
                                    TRUSTEE
 
                            ------------------------
 
                                   INDENTURE
 
                       DATED AS OF                , 1993
 
                       10% ASSET PROCEEDS NOTES DUE 1997
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   264
 
                               TABLE OF CONTENTS
 
<TABLE>
<S>                   <C>                                                             <C>
ARTICLE 1.  DEFINITIONS AND INCORPORATION BY REFERENCE..............................    M-1
     SECTION 1.01     Definitions...................................................    M-1
     SECTION 1.02     Incorporation by Reference of Trust Indenture Act.............    M-5
     SECTION 1.03     Rules of Construction.........................................    M-5
ARTICLE 2.  THE SECURITIES..........................................................    M-6
     SECTION 2.01     Form and Dating...............................................    M-6
     SECTION 2.02     Execution and Authentication..................................    M-6
     SECTION 2.03     Registrar and Paying Agent....................................    M-6
     SECTION 2.04     Paying Agent to Hold Money in Trust...........................    M-7
     SECTION 2.05     Securityholder Lists..........................................    M-7
     SECTION 2.06     Transfer and Exchange.........................................    M-7
     SECTION 2.07     Replacement Securities........................................    M-7
     SECTION 2.08     Outstanding Securities........................................    M-8
     SECTION 2.09     Securities Held by the Company or an Affiliate................    M-8
     SECTION 2.10     Temporary Securities..........................................    M-8
     SECTION 2.11     Cancellation..................................................    M-8
     SECTION 2.12     Defaulted Interest............................................    M-8
     SECTION 2.13     Deemed Repayments; Deferral of Maturity Date..................    M-9
ARTICLE 3.  REDEMPTION..............................................................    M-9
     SECTION 3.01     Notices to Trustee............................................    M-9
     SECTION 3.02     Selection of Securities to be Redeemed........................    M-9
     SECTION 3.03     Notice of Redemption..........................................    M-9
     SECTION 3.04     Effect of Notice of Redemption................................   M-10
     SECTION 3.05     Deposit of Redemption Price...................................   M-10
     SECTION 3.06     Securities Redeemed in Part...................................   M-10
     SECTION 3.07     Optional Redemption...........................................   M-10
     SECTION 3.08     Redemption or Retirement Upon Sale of Assets..................   M-10
ARTICLE 4.  COVENANTS...............................................................   M-11
     SECTION 4.01     Payment of Securities.........................................   M-11
     SECTION 4.02     Maintenance of Office or Agency...............................   M-11
     SECTION 4.03     Sale of Assets and Subsidiaries; Corporate Existence..........   M-11
     SECTION 4.04     Payment of Taxes..............................................   M-12
     SECTION 4.05     Maintenance of Properties.....................................   M-12
     SECTION 4.06     SEC Reports...................................................   M-12
     SECTION 4.07     Compliance Certificate........................................   M-12
     SECTION 4.08     Limitation on Stock Payments and Investments..................   M-13
     SECTION 4.09     Transactions with Affiliates..................................   M-13
     SECTION 4.10     Limitation on Additional Indebtedness and Liens...............   M-13
     SECTION 4.11     Conflicting Agreements........................................   M-13
</TABLE>
<PAGE>   265
 
<TABLE>
<S>                   <C>                                                             <C>
     SECTION 4.12     Limitation on Dividends and Certain Other Restrictions
                      Affecting Subsidiaries........................................   M-13
     SECTION 4.13     Waiver of Stay, Extension or Usury Laws.......................   M-14
     SECTION 4.14     Maintenance of Insurance and Records, Compliance with Law.....   M-14
     SECTION 4.15     Limitation on Redemption of Certain Indebtedness..............   M-14
     SECTION 4.16     Value of Claims Represented by Securities.....................   M-14
     SECTION 4.17     Notice of Default.............................................   M-15
     SECTION 4.18     Investment Company Act of 1940................................   M-15
ARTICLE 5.  SUCCESSORS..............................................................   M-15
     SECTION 5.01     When Company May Merge, etc. .................................   M-15
     SECTION 5.02     Successor Substituted.........................................   M-15
ARTICLE 6.  DEFAULTS AND REMEDIES...................................................   M-15
     SECTION 6.01     Events of Default.............................................   M-15
     SECTION 6.02     Acceleration..................................................   M-17
     SECTION 6.03     Other Remedies................................................   M-17
     SECTION 6.04     Waiver of Past Defaults.......................................   M-18
     SECTION 6.05     Control by Majority...........................................   M-18
     SECTION 6.06     Limitation on Suits...........................................   M-18
     SECTION 6.07     Rights of Holders to Receive Payment..........................   M-18
     SECTION 6.08     Collection Suit by Trustee....................................   M-19
     SECTION 6.09     Trustee May File Proofs of Claims.............................   M-19
     SECTION 6.10     Priorities....................................................   M-19
     SECTION 6.11     Undertaking for Costs.........................................   M-19
ARTICLE 7.  TRUSTEE.................................................................   M-19
     SECTION 7.01     Acceptance of Trusts; Duties of Trustee.......................   M-19
     SECTION 7.02     Rights of Trustee.............................................   M-20
     SECTION 7.03     Individual Rights of Trustee..................................   M-20
     SECTION 7.04     Trustee's Disclaimer..........................................   M-20
     SECTION 7.05     Notice of Defaults............................................   M-21
     SECTION 7.06     Reports by Trustee to Holders.................................   M-21
     SECTION 7.07     Compensation and Indemnity....................................   M-21
     SECTION 7.08     Replacement of Trustee........................................   M-21
     SECTION 7.09     Successor Trustee by Merger, etc..............................   M-22
     SECTION 7.10     Eligibility; Disqualification.................................   M-22
     SECTION 7.11     Preferential Collection of Claims Against Company.............   M-22
ARTICLE 8.  DISCHARGE OF INDENTURE..................................................   M-22
     SECTION 8.01     Termination of Company's Obligations..........................   M-22
     SECTION 8.02     Application of Trust Money....................................   M-23
     SECTION 8.03     Repayment to Company..........................................   M-23
     SECTION 8.04     Reinstatement.................................................   M-23
</TABLE>
 
                                       ii
<PAGE>   266
 
<TABLE>
<S>                   <C>                                                             <C>
ARTICLE 9.  AMENDMENTS..............................................................   M-24
     SECTION 9.01     Without Consent of Holders....................................   M-24
     SECTION 9.02     With Consent of Holders.......................................   M-24
     SECTION 9.03     Compliance with Trust Indenture Act...........................   M-24
     SECTION 9.04     Revocation and Effect of Consents.............................   M-24
     SECTION 9.05     Notation on or Exchange of Securities.........................   M-25
     SECTION 9.06     Trustee Protected.............................................   M-25
ARTICLE 10.  SECURITY...............................................................   M-25
     SECTION 10.01    Collateral Agency Agreement and Guarantee Agreement...........   M-25
     SECTION 10.02    Further Assurances............................................   M-25
     SECTION 10.03    Authorization of Actions to be Taken by the Trustee Under the
                      Collateral Agency Agreement and the Guarantee Agreement.......   M-26
     SECTION 10.04    Authorization of Receipt of Funds by the Trustee Under the
                      Collateral Agency Agreement and the Guarantee Agreement.......   M-26
     SECTION 10.05    Termination of Security Interest..............................   M-26
     SECTION 10.06    Security Documents............................................   M-26
ARTICLE 11.  MISCELLANEOUS..........................................................   M-26
     SECTION 11.01    Trust Indenture Act Controls..................................   M-26
     SECTION 11.02    Notices.......................................................   M-27
     SECTION 11.03    Communication by Holders with Other Holders...................   M-27
     SECTION 11.04    Action by Securityholders.....................................   M-27
     SECTION 11.05    Proof of Execution of Instruments and of Holding of
                      Securities....................................................   M-27
     SECTION 11.06    Revocation of Consents; Future Holders Bound..................   M-28
     SECTION 11.07    Rules by Trustee and Agents...................................   M-28
     SECTION 11.08    Certificate and Opinion as to Conditions Precedent............   M-28
     SECTION 11.09    Statements Required in Certificate or Opinion.................   M-28
     SECTION 11.10    Legal Holidays................................................   M-29
     SECTION 11.11    No Recourse Against Others....................................   M-29
     SECTION 11.12    Table of Contents, Headings, etc..............................   M-29
     SECTION 11.13    Duplicate Originals...........................................   M-29
     SECTION 11.14    Governing Law.................................................   M-29
     SECTION 11.15    No Adverse Interpretation of Other Agreements.................   M-29
     SECTION 11.16    Successors....................................................   M-29
     SECTION 11.17    Separability..................................................   M-29
ARTICLE 12.  MEETINGS OF HOLDERS OF SECURITIES......................................   M-30
     SECTION 12.01    Purposes of Meetings..........................................   M-30
     SECTION 12.02    Call of Meetings by Trustee...................................   M-30
     SECTION 12.03    Call of Meetings by Company or Security Holders...............   M-30
     SECTION 12.04    Persons Entitled to Vote at Meeting...........................   M-30
     SECTION 12.05    Regulations for Meeting.......................................   M-30
</TABLE>
 
                                       iii
<PAGE>   267
 
                             CROSS-REFERENCE TABLE
 
<TABLE>
<CAPTION>
                                     TIA                                          INDENTURE
                                   SECTION                                         SECTION
- -----------------------------------------------------------------------------  ---------------
<S>                                                                            <C>
310(a)(1)....................................................................       7.10
   (a)(2)....................................................................       7.10
   (a)(3)....................................................................  Not Applicable
   (a)(4)....................................................................  Not Applicable
                                                                                    7.08;
   (b).......................................................................       7.10
   (c).......................................................................  Not Applicable
311(a).......................................................................       7.11
   (b).......................................................................       7.11
   (c).......................................................................  Not Applicable
312(a).......................................................................       2.05
   (b).......................................................................       11.03
   (c).......................................................................       11.03
313(a).......................................................................       7.06
   (b)(1)....................................................................       7.06
   (b)(2)....................................................................       7.06
   (c).......................................................................       7.06
   (d).......................................................................       7.06
                                                                                    4.06;
314(a).......................................................................       4.07
   (b).......................................................................       10.02
   (c)(1)....................................................................       11.08
   (c)(2)....................................................................       11.08
   (c)(3)....................................................................  Not Applicable
   (d).......................................................................       10.02
   (e).......................................................................       11.09
   (f).......................................................................  Not Applicable
315(a).......................................................................       7.01
   (b).......................................................................       7.05
   (c).......................................................................       7.01
   (d).......................................................................       7.01
   (e).......................................................................       6.11
316(a)(last sentence)........................................................       2.09
   (a)(1)(A).................................................................       6.05
   (a)(1)(B).................................................................       6.04
   (a)(2)....................................................................  Not Applicable
   (b).......................................................................       6.07
317(a)(1)....................................................................       6.08
   (a)(2)....................................................................       6.09
   (b).......................................................................       2.04
318(a).......................................................................       11.01
</TABLE>
 
- ---------------
This cross-reference tables does not constitute a part of the Indenture.
<PAGE>   268
 
     INDENTURE dated as of                         , 1993 between ROSEBUD
HOLDINGS, INC., a Delaware corporation (the "Company"), and
                         Bank, a national banking association (the "Trustee").
 
     Each party agrees as follows for the benefit of the other party and for the
equal and ratable benefit of the Holders of the Company's 10% Asset Proceeds
Notes due 1997 (the "Securities").
 
                                   ARTICLE 1.
 
                   DEFINITIONS AND INCORPORATION BY REFERENCE
 
SECTION 1.01  DEFINITIONS.
 
     "Actual Knowledge" has the meaning assigned to such term in Section 6.01
hereof.
 
     "Affiliate" means any Person directly or indirectly controlling or
controlled by or under common control with the Company; provided, however, that
the term Affiliate shall not include any Subsidiary of the Company. For this
purpose, "control" means possession, directly or indirectly, of the power to
direct or cause the direction of the management or policies of a Person, whether
through the ownership of voting securities, by contract or otherwise.
 
     "Agent" means any Registrar, Paying Agent, Collateral Agent or
Co-Registrar.
 
     "Bankruptcy Law" has the meaning assigned to such term in Section 6.01
hereof.
 
     "Board of Directors" means the Board of Directors of the Company or any
committee of the Board authorized to act for it hereunder.
 
     "Business Day" has the meaning assigned to such term in Section 11.10
hereof.
 
     "Capital Stock" means any stock of any class of a corporation.
 
     "Collateral Agency Agreement" means the Pledge, Intercreditor and
Collateral Agency Agreement of even date with this Indenture among the Company,
the Trustee and                          , as the Collateral Agent thereunder as
the same may be amended, modified or supplemented from time to time.
 
     "Collateral Agent" means the party named as such in the Collateral Agency
Agreement until a successor replaces it, and thereafter means the successor.
 
     "Common Stock" means the common stock, par value $1.00 per share, of the
Company or any security into which the common stock may be converted.
 
     "Company" means the party named as such above until a successor replaces it
pursuant to the applicable provision hereof, and thereafter means such
successor.
 
     "Corporate Trust Office of the Trustee" shall be at the address of the
Trustee specified in Section 11.02 or such other address as the Trustee may give
notice of to the Company.
 
     "Custodian" has the meaning assigned to such term in Section 6.01 hereof.
 
     "Default" means any event which is, or after notice or passage of time or
both would be, an Event of Default.
 
     "Deferred Notice" has the meaning assigned to such term in Section 2.13
hereof.
 
     "Effective Date" has the meaning assigned in the Plan of Reorganization.
 
     "Event of Default" has the meaning assigned to such term in Section 6.01
hereof.
 
     "Exchange Act" means the Securities Exchange Act of 1934 and the rules and
regulations of the SEC promulgated thereunder.
 
                                       M-1
<PAGE>   269
 
     "Guarantee Agreement" means the Guarantee Agreement of even date with this
Indenture among the Company and the Trustee, as the same may be amended,
modified or supplemented from time to time.
 
     "Guarantor" has the meaning assigned to such term in the Guarantee
Agreement.
 
     "Holder" or "Securityholder" means a Person in whose name a Security is
registered on the Registrar's books.
 
     "Indebtedness" means, with respect to any Person and without duplication,
any liability, whether or not contingent (i) in respect of borrowed money or
evidenced by bonds, notes, debentures or similar instruments or letters of
credit (or reimbursement agreements in respect thereof) or representing the
balance deferred and unpaid of the purchase price of any property or services
(including without limitation pursuant to Purchase Money Indebtedness or capital
leases), except any such balance that constitutes a trade payable arising in the
ordinary course of business, (ii) under any agreement related to the fixing of
interest rates on any Indebtedness, such as an interest rate swap, cap or collar
agreement if and to the extent the same would constitute a liability on the
balance sheet of such Person prepared in accordance with generally accepted
accounting principles, or (iii) in respect of letters of credit issued at the
request of such Person, and shall also include, to the extent not otherwise
included, all Indebtedness of any other Person for which such Person is or could
become liable or which is secured by a Lien on an asset of such Person, whether
or not such Indebtedness is assumed by such Person, and the guaranty of any of
the foregoing items.
 
     "Indenture" means this Indenture as amended from time to time.
 
     "Investment" means providing, other than in the ordinary course of business
or a Sale of Assets, any cash or assets to, or becoming liable in respect of any
Indebtedness of, any Person other than a Subsidiary existing on the Effective
Date, whether or not in exchange for securities of any Person or other
consideration, provided, however, the taking of notes issued by an acquiring
Person in connection with a Sale of Assets shall not constitute the making of an
Investment.
 
     "Legal Holiday" has the meaning assigned to such term in Section 11.10
hereof.
 
     "Lien" means, with respect to any asset, any mortgage, lien, pledge,
charge, security interest or similar encumbrance in respect of such asset,
whether or not filed, recorded or otherwise perfected under applicable law
(including any conditional sale or other title retention agreement, any
capitalized lease in the nature thereof, and any filing of or agreement to give
any financing statement under the Uniform Commercial Code or equivalent statutes
of any jurisdiction, other than an information filing), but does not include, in
the case of the Company, the lien granted to the Trustee under Section 7.07
hereof.
 
     "Maturity Date" of the Securities means, subject to Section 2.13 hereof,
            , 1997.
 
     "Net Proceeds" with respect to any Sale of Assets, means the cash (in U.S.
dollars or currency freely convertible into U.S. dollars) received by the
Company or any of its Subsidiaries from such Sale of Assets after (i) provision
for all income or other taxes measured by or resulting from such sale or other
disposition or the transfer of the proceeds thereof to the Company that are
payable by the Company or any of its Subsidiaries (as reasonably and in good
faith estimated by the Chief Financial Officer of the Company or such
Subsidiary), (ii) payment of all brokerage commissions, legal and accounting
fees and expenses and other fees and expenses related to such sale or other
disposition, (iii) deduction of any amounts received by any Subsidiary that are
not legally available for direct or indirect distribution to the Company, (iv)
deduction of any amounts required to discharge any Permitted Liens on the assets
sold, leased or otherwise conveyed, and (v) deduction of any amounts required to
be paid to the lender pursuant to any Permitted Working Capital Loans upon such
Sale of Assets, and (vi) deduction of appropriate amounts provided by the
Company or its Subsidiaries as a reserve on its regularly prepared balance
sheets, in accordance with generally accepted accounting principles consistently
applied (including, without limitation, subject to the next succeeding sentence,
all amounts escrowed, pledged or otherwise set aside to assume payment of such
liabilities), against any liabilities associated with the assets sold in such
Sale of Assets and retained by the Company or its Subsidiaries, including,
without limitation, pension and other postemployment benefit liabilities and
liabilities related to environmental matters, or against any indemnification
obligations associated with the sale or other
 
                                       M-2
<PAGE>   270
 
disposition. Net Proceeds shall include (i) when received in cash, any Net
Proceeds from the sale or other disposition of any non-cash proceeds received by
the Company or any of its Subsidiaries from a Sale of Assets and (ii) when
received in cash, any Net Proceeds released from escrow, pledge or other set
aside and amounts no longer reserved under generally accepted accounting
principles as described in clause (vi) of the immediately preceding sentence.
 
     "Officer" means the Chairman of the Board, the President, any Senior
Vice-President, Executive Vice-President or any other Vice-President, the
Treasurer or the Secretary of the Company.
 
     "Officer's Certificate" means a certificate signed by any Officer of the
Company.
 
     "Opinion of Counsel" means a written opinion from legal counsel, who may be
an employee of or counsel for the Company or other counsel reasonably acceptable
to the Trustee.
 
     "Paying Agent" has the meaning assigned to such term in Section 2.03
hereof.
 
     "Permitted Indebtedness" means indebtedness deemed by the Board of
Directors to be appropriate to maintain the assets, business and operations of
Subsidiaries pending sale of the following types: (i) Permitted Working Capital
Loans; (ii) Indebtedness (other than any Indebtedness set forth in the other
clauses of this definition), provided that the proceeds of such Indebtedness are
used within 120 days of its incurrence to retire all outstanding Securities;
(iii) Purchase Money Indebtedness; (iv) Refinancing Indebtedness; (v)
Indebtedness of Subsidiaries of the Company to the Company or other Subsidiaries
of the Company; and (vi) unsecured Indebtedness incurred by the Company or any
Subsidiary, provided that (A) no payment of principal thereon is made or is
required to be made on or before the Maturity Date, (B) no payment of interest
or principal is made thereon during the continuance of any Event of Default and
(C) at the time of the incurrence of such Indebtedness, there is no outstanding
Default or Event of Default.
 
     "Permitted Liens" means (i) Liens contemplated by the Collateral Agency
Agreement; (ii) Liens which may be granted from time to time to secure and/or
maintain Permitted Working Capital Loans; (iii) Liens existing on the Effective
Date or thereafter created to replace such Liens; (iv) Liens in favor of the
Trustee or the Collateral Agent on all property and funds held or collected by
the Trustee or the Collateral Agent as security for the performance by the
Company of its obligations of payment to, and reimbursement and indemnification
of, the Trustee and the Collateral Agent for their services under the Indenture
and the Collateral Agency Agreement, respectively; (v) Liens for taxes or
assessments and similar charges, or imposed in connection with litigation or
asserted claims, either not delinquent or contested in good faith by appropriate
proceedings and as to which the Company or a Subsidiary thereof shall have set
aside on its books such reserves as it deems adequate; (vi) Liens incurred, or
pledges and deposits made, in connection with workers' compensation,
unemployment insurance and other social security benefits, or securing the
performance of leases, contracts (other than for the repayment of borrowed
money), statutory obligations, progress payments, surety and appeal bonds and
other obligations of like nature, but only to the extent any of the foregoing
are incurred in good faith in the ordinary course of business; (vii) Liens
imposed by law, such as mechanics', carriers', warehousemen's, materialmen's and
vendors' Liens, incurred in good faith in the ordinary course of business;
(viii) zoning restrictions, easements, licenses, covenants, reservations,
restrictions on the use of real property or irregularities of title incident
thereto that do not in the aggregate materially detract from the value of the
property or assets of the Company or any of its Subsidiaries, as the case may
be, or materially impair the use of such property in the operation of the
Company's or any Subsidiary's business; (ix) Liens created by Subsidiaries of
the Company to secure Permitted Indebtedness of such Subsidiaries to the Company
or to other Subsidiaries thereof; (x) Liens on assets acquired in connection
with the incurrence of Purchase Money Indebtedness; (xi) Liens granted in
connection with the incurrence of Refinancing Indebtedness; or (xii) Liens in
favor of the Pension Benefits Guaranty Corporation or otherwise arising out of
or in connection with any employee benefit plans.
 
     "Permitted Working Capital Loans" means loans (or contingent liability with
respect to letters of credit) under revolving credit, working capital or letter
of credit facilities which may or may not be secured by a lien on inventory
and/or Receivables that the Company or any Subsidiary of the Company may have
from time to time, to the extent that the aggregate principal amount of all
Indebtedness outstanding under all such facilities
 
                                       M-3
<PAGE>   271
 
at any time does not exceed the value of the inventory and Receivables on the
books of the Company and its Subsidiaries taken as a whole.
 
     "Person" means any individual, corporation, partnership, joint venture,
association, joint-stock company, trust, unincorporated organization, or
government or any agency or political subdivision thereof.
 
     "Plan of Reorganization" means the Company's Amended Consolidated Plan of
Reorganization, as amended from time to time.
 
     "Pledged Collateral" shall have the meaning assigned to such term in the
Collateral Agency Agreement.
 
     "Principal" of a debt security means the principal of such security plus
the then applicable premium, if any, on such security and less the amount, if
any, of any unamortized original issue discount.
 
     "Purchase Money Indebtedness" means any Indebtedness incurred by the
Company or any of its Subsidiaries in connection with the acquisition by the
Company or such Subsidiary, after the Effective Date, of equipment or other
fixed assets, including Indebtedness incurred to finance, refinance or refund
the cost (including the cost of construction) of such assets; provided that (i)
the principal amount of such Indebtedness does not exceed the fair market value
of the assets being acquired or the cost of construction paid by or charged to
the Company or such Subsidiary and (ii) such Indebtedness shall not be secured
by any assets of the Company or any Subsidiary of the Company other than the
assets with respect to which such Indebtedness is incurred.
 
     "Receivables" means all "accounts", all "chattel paper", all "instruments"
evidencing "accounts" and all proceeds thereof, as each such term is defined in
the Uniform Commercial Code as in effect in the State of New York on the
Effective Date.
 
     "Redemption Price" has the meaning assigned to such term in Section 3.07
hereof.
 
     "Refinancing Indebtedness" means Indebtedness the proceeds of which are
used to refinance or refund then outstanding Permitted Indebtedness of the
Company or its Subsidiaries if such refinancing or refunding Indebtedness (i)
does not have a Principal amount in excess of the Principal amount of the
Indebtedness being so refinanced or refunded, plus customary fees, expenses and
costs related to the incurrence of such Refinancing Indebtedness; (ii) gives its
holders no more collateral and no more Guaranties from the Company and its
Subsidiaries than the Indebtedness being refinanced; (iii) amortizes or matures
no more quickly than the Indebtedness being refinanced; (iv) is at least as
junior or no more senior in right of payment to the Securities, as the case may
be, as the Indebtedness being refinanced; (v) is issued by the Company, if the
Indebtedness being refinanced was issued by the Company, and (vi) is otherwise
on terms that, taken as a whole, are at least as favorable to the borrower as
those of the Indebtedness being refinanced.
 
     "Registrar" has the meaning assigned to such term in Section 2.03 hereof.
 
     "Sale of Assets" means any sale, lease or other conveyance of assets
(including by way of merger or consolidation or pursuant to a sale-and-leaseback
transaction) of the Company or any of its Subsidiaries (including the Capital
Stock of any Subsidiary of the Company but excluding the Capital Stock of the
Company), as the case may be, not made in the ordinary course of business
(provided that any disposition of all or substantially all of the stock or
assets of any Subsidiary of the Company or the assets of any division or line or
business of the Company or any of its Subsidiaries shall not be deemed to be in
the ordinary course of business), if and to the extent (but only to the extent)
that all such sales, leases and other conveyances not made in the ordinary
course of business from and after the Effective Date result in aggregate Net
Proceeds in excess of $5 million; provided, however, that the term "Sale of
Assets" shall not include (i) any consolidation or merger involving the Company
for the purpose of reincorporating the Company in another jurisdiction or (ii)
the involvement of the Company or any Subsidiary in a merger, consolidation or
reorganization approved by the holders of 75% or more of the then outstanding
principal amount of the Securities or (iii) any sale, lease, conveyance or other
disposition of assets among or between the Company and one of its Subsidiaries
or among or between such Subsidiaries, including, without limitation, the merger
of any such Subsidiary with and into the Company or any other Subsidiary of the
Company, (iv) any sale, lease, conveyance or other disposition of any assets of
the Company or any Subsidiary, the proceeds of which are reinvested
substantially
 
                                       M-4
<PAGE>   272
 
contemporaneously with their receipt in the acquisition or improvement of
similar assets of the Company or any Subsidiary. For purposes of this Indenture,
a reinvestment of proceeds shall be considered substantially contemporaneous if
completed within 24 months of receipt.
 
     "SEC" means the Securities and Exchange Commission.
 
     "Securities" means the Asset Proceeds Notes issued under this Indenture.
 
     "Subsidiary" shall mean any Person more than 50% of the outstanding voting
stock of which is owned, directly or indirectly, by the Company or by one or
more other Subsidiaries. For the purposes of this definition, "voting stock"
means stock which ordinarily has voting power for the election of directors,
whether at all times or only so long as no senior class of stock has such voting
power by reason of any contingency.
 
     "TIA" means the Trust Indenture Act of 1939 (15 U.S. Code sec.sec.
77aaa-77bbbb) as in effect on the date of this Indenture, except as provided in
Section 9.03.
 
     "Trustee" means the party named as such in this Indenture until a successor
replaces it and thereafter means the successor.
 
     "Trust Officer" means any officer of the Trustee assigned by the Trustee to
administer its corporate trust matters.
 
     "U.S. Government Obligations" means direct non-callable obligations of, or
non-callable obligations guaranteed by, the United States of America for the
payment of which the full faith and credit of the United States of America is
pledged.
 
SECTION 1.02  INCORPORATION BY REFERENCE OF TRUST INDENTURE ACT.
 
     Whenever this Indenture refers to a provision of the TIA, the provision is
incorporated by reference in and made a part of this Indenture.
 
     The following TIA terms used in this Indenture have the following meanings:
 
     "indenture securities" means the Securities.
 
     "indenture security holder" means a Securityholder.
 
     "indenture to be qualified" means this Indenture.
 
     "indenture trustee" or "institutional trustee" means the Trustee.
 
     "obligor" on the indenture securities means the Company.
 
     All other terms used in this Indenture that are not otherwise defined
herein and are defined by the TIA, are defined by TIA reference to another
statute, or are defined by SEC rule under the TIA have the meanings so assigned
to them.
 
SECTION 1.03  RULES OF CONSTRUCTION.
 
     Unless the context otherwise requires:
 
     (1) a term has the meaning assigned to it;
 
     (2) an accounting term not otherwise defined has the meaning assigned to it
in accordance with generally accepted accounting principles in effect on the
date hereof;
 
     (3) "or" is not exclusive;
 
     (4) words in the singular include the plural and in the plural include the
singular except where the context manifestly otherwise requires;
 
     (5) provisions apply to successive events and transactions; and
 
     (6) "herein", "hereof" and other words of similar import refer to this
Indenture as a whole and not to any particular Article, Section or other
subdivision.
 
                                       M-5
<PAGE>   273
 
                                   ARTICLE 2.
 
                                 THE SECURITIES
 
SECTION 2.01  FORM AND DATING.
 
     The Securities and the Trustee's certificate of authentication shall be
substantially in the form set forth in Exhibit A, which is incorporated in and
forms a part of this Indenture. The Securities may have such notations, legends
or endorsements as are required by law, stock exchange rule or usage. Each
Security shall be dated the date of its authentication.
 
SECTION 2.02  EXECUTION AND AUTHENTICATION.
 
     Two Officers shall sign the Securities for the Company by manual or
facsimile signature. The Company's seal shall be reproduced on the Securities.
 
     If an Officer whose signature is on a Security no longer holds that office
at the time the Security is authenticated, the Security shall nevertheless be
valid.
 
     A Security shall not be valid until authenticated by the manual or
facsimile signature of the Trustee. The signature shall be conclusive evidence
that the Security has been authenticated by the Trustee under this Indenture.
 
     The Trustee shall authenticate Securities for original issue in the
aggregate principal amount of up to $          upon a written order of the
Company signed by two Officers or by an Officer and an Assistant Treasurer or
Assistant Secretary of the Company. Such order shall specify the amount of
Securities to be authenticated and the date on which the original issue of
Securities is to be authenticated. The Trustee shall hereafter, from time to
time, authenticate additional Securities for issuance pursuant to Section 4.01
upon a written order of the Company signed by two Officers or by an Officer and
an Assistant Treasurer or Assistant Secretary of the Company specifying the
amount of Securities to be authenticated and the date on which such later issue
of Securities is to be authenticated. The aggregate principal amount of
Securities outstanding at any time may not exceed $     million Securities
issued pursuant to this paragraph except as provided in Section 2.07.
 
     The Trustee may appoint an authenticating agent acceptable to the Company
to authenticate Securities. An authenticating agent may authenticate Securities
whenever the Trustee may do so. Each reference in this Indenture to
authentication by the Trustee includes authentication by such agent. An
authenticating agent has the same rights as an Agent to deal with the Company or
any Affiliate.
 
     The Securities shall be issuable only in registered form without coupons
and only in denominations of $1,000 and integral multiples thereof.
 
SECTION 2.03  REGISTRAR AND PAYING AGENT.
 
     The Company shall maintain in the Borough of Manhattan, The City of New
York, an office or agency where Securities may be presented for registration of
transfer or for exchange (the "Registrar"), and an office or agency where
Securities may be presented for payment (the "Paying Agent"). The Registrar
shall keep a register of the Securities and of their transfer and exchange. The
Company may appoint or change one or more co-registrars and one or more
additional paying agents without notice, and may act in any such capacity on its
own behalf provided that if the Trustee is acting as registrar or paying agent,
the Company shall give the Trustee at least five Business Days prior written
notice of such change. The term "Paying Agent" includes any additional paying
agent.
 
     The Company shall enter into an appropriate agency agreement with any Agent
not a party to this Indenture. The agreement shall implement the provisions of
this Indenture that relate to such Agent. The Company shall notify the Trustee
of the name and address of any Agent not a party to this Indenture. If the
Company fails to maintain a Registrar or Paying Agent, the Trustee shall act as
such.
 
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     The Company initially appoints the Trustee as Registrar and Paying Agent.
 
SECTION 2.04  PAYING AGENT TO HOLD MONEY IN TRUST.
 
     Each Paying Agent shall hold in trust for the benefit of the
Securityholders or the Trustee all moneys held by the Paying Agent for the
payment of principal of or interest on the Securities, and shall notify the
Trustee of any default by the Company in making any such payment. While any such
default continues, the Trustee may require a Paying Agent to pay all money held
by it to the Trustee. The Company may at any time require a Paying Agent to pay
all money held by it to the Trustee. Upon payment over to the Trustee, the
Paying Agent shall have no further liability for the money. If the Company acts
as Paying Agent, it shall segregate and hold as a separate trust fund all money
held by it as Paying Agent.
 
SECTION 2.05  SECURITYHOLDER LISTS.
 
     The Trustee shall preserve in as current a form as is reasonably
practicable the most recent list available to it of the names and addresses of
Securityholders. If the Trustee is not the Registrar, the Company shall furnish
to the Trustee on or before each interest payment date and at such other times
as the Trustee may request in writing a list, in such form and as of such date
as the Trustee may reasonably require, of the names and addresses of
Securityholders.
 
SECTION 2.06  TRANSFER AND EXCHANGE.
 
     When Securities are presented to the Registrar or a co-Registrar with a
request to register their transfer or to exchange them for an equal principal
amount of Securities of other authorized denominations accompanied by a written
instrument or instruments of transfer, in form satisfactory to the Company and
the Registrar, duly executed by the registered owner or by his or her attorney
duly authorized in writing, the Registrar shall register the transfer or make
the exchange if the requirements of Section 8-401(1) of the New York Uniform
Commercial Code are met. To permit registrations of transfer and exchanges, the
Trustee shall authenticate Securities at the Registrar's request. The Company or
the Trustee, as the case may be, shall not be required (i) to issue,
authenticate, register the transfer of or exchange any Security during a period
beginning at the opening of business 15 days before the mailing of a notice of
redemption of the Securities selected for redemption under Section 3.03 and
ending at the close of business on the day of such mailing, or (ii) to register
the transfer of or exchange any Security so selected for redemption in whole or
in part, except the unredeemed portion of Securities being redeemed in part.
 
     No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any transfer, registration of transfer or exchange of Securities, other
than exchanges pursuant to Sections 2.10, 3.06 or 9.05 not involving any
transfer.
 
     Anything in this Indenture to the contrary notwithstanding, but subject to
the payment of interest to the Holders of the Securities on the applicable
record date, the parties hereto and any agent thereof may deem and treat the
Holder of any Securities, prior to due presentment thereof for registration of
transfer, as the absolute owner of such Securities for all purposes (whether or
not the Securities shall be overdue and notwithstanding any notation of
ownership or other writing thereon) and neither the Company, the Trustee nor any
agent of the Company or the Trustee shall be affected by any notice to the
contrary.
 
SECTION 2.07  REPLACEMENT SECURITIES.
 
     If the Holder of a Security claims that the Security has been mutilated,
lost, destroyed or wrongfully taken, the Company shall execute and issue and,
upon the Company's request, the Trustee shall authenticate and deliver a
replacement Security if their respective reasonable requirements as well as the
requirements of applicable law are met and, in the case of a mutilated Security,
such mutilated Security is surrendered to the Trustee. If required by the
Trustee or the Company, an indemnity bond must be furnished by such Holder in an
amount sufficient in the judgment of the Trustee or the Company, as the case may
be, to indemnify and protect the Company, the Trustee and any other Agent and
hold them harmless from any loss which any of
 
                                       M-7
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them may suffer if a Security is replaced. The Company or the Trustee may charge
for its reasonable expenses in replacing a Security.
 
     If any mutilated, destroyed or wrongfully taken Security has become or is
about to become due and payable, the Company in its discretion may, instead of
issuing a new Security, pay such Security when due.
 
     Every replacement Security is an additional obligation of the Company.
 
SECTION 2.08  OUTSTANDING SECURITIES.
 
     Securities outstanding at any time are all the Securities authenticated by
the Trustee except those canceled by it, those delivered to it for cancellation,
and those described in this Section as not outstanding. A Security does not
cease to be outstanding solely because the Company or one of its Subsidiaries or
Affiliates is a Holder of the Security.
 
     If a Security is replaced pursuant to Section 2.07, it ceases to be
outstanding unless the Trustee receives proof satisfactory to it, or a court
holds, that the replaced Security is held by a bona fide purchaser.
 
     If the Paying Agent (if other than the Company) or the Trustee holds on a
redemption date or Maturity Date money sufficient to pay the principal of, and
accrued interest on, the Securities payable on that date, then on and after that
date such Securities shall be deemed to be no longer outstanding and interest on
them shall cease to accrue.
 
SECTION 2.09  SECURITIES HELD BY THE COMPANY OR AN AFFILIATE.
 
     In determining whether the Holders of the required principal amount of
Securities have concurred in any direction, request, waiver or consent under
this Indenture, Securities owned by the Company or any Subsidiary or Affiliate
of the Company shall be disregarded, except that for the purposes of determining
whether the Trustee shall be protected in relying on any such direction,
request, waiver or consent, only Securities which the Trustee knows are so owned
shall be so disregarded.
 
SECTION 2.10  TEMPORARY SECURITIES.
 
     Until definitive Securities are ready for delivery, the Company may prepare
and execute and the Trustee shall authenticate and deliver temporary Securities.
Temporary Securities shall be substantially in the form of definitive
Securities, but may have such variations as the Company considers appropriate
for temporary Securities. The Company shall prepare and execute and the Trustee
shall authenticate and deliver definitive Securities in exchange for temporary
Securities without unreasonable delay.
 
SECTION 2.11  CANCELLATION.
 
     The Company may at any time deliver Securities to the Trustee for
cancellation. The Registrar and Paying Agent shall forward to the Trustee any
Securities surrendered to them for registration of transfer, exchange or
payment. The Trustee shall cancel all Securities surrendered for registration of
transfer, exchange, payment or cancellation and, at the option of the Company,
shall destroy canceled Securities and deliver a certificate of any such
destruction to the Company. The Company may not issue new Securities to replace
Securities that it has paid or delivered to the Trustee for cancellation.
 
SECTION 2.12  DEFAULTED INTEREST.
 
     If and to the extent the Company defaults in a payment of interest on the
Securities, it shall pay the defaulted interest in any lawful manner. It may pay
the defaulted interest to the Persons who are Securityholders on a subsequent
special record date. The Company shall fix such record date and payment date. At
least 15 days before the record date, the Company shall mail to Securityholders,
with a copy to the Trustee, a notice that states the record date, payment date
and amount of interest to be paid.
 
SECTION 2.13  DEEMED REPAYMENTS; DEFERRAL OF MATURITY DATE.
 
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<PAGE>   276
 
     If the Guarantor is required to make any payment of "Guarantor
Obligations", as defined in the Guarantee Agreement, and actually makes such
payment (whether in cash, Payment Notes (as clarified in the Guarantee
Agreement) or a combination thereof), the Securities shall thereupon immediately
(and without the need for any notice or action on the part of any Person) be
deemed to have been repaid in an amount equal to all amounts of "Guarantor
Obligations", as defined in the Guarantee Agreement, paid under the Guarantee
Agreement (whether in cash, Payment Notes or a combination thereof) and the
outstanding amount thereof shall be deemed accordingly reduced. In computing any
such deemed repayment, each Payment Note issued by the Guarantor shall be deemed
to have a value equal to the principal amount thereof. Such reduction shall be
made proportionately among all Securities based on the principal amounts
outstanding of such Securities immediately prior to such deemed repayment. Upon
surrender of a Security that has been deemed to have been repaid in part, the
Trustee shall authenticate for the Holder a new Security equal in principal
amount to the portion of the Security remaining after such deemed repayment.
 
     The Trustee may, with the concurrence of Holders owning an aggregate of   %
of the principal amount of the outstanding Securities, elect to defer the
maturity dates under the Guarantee Agreement as contemplated in Section 2
thereof. Upon the delivery of a notice (a "Deferral Notice") by the Trustee so
deferring such maturity date, the Maturity Date hereunder shall be automatically
deferred for one year from the date of the original Maturity Date hereunder and
any Default or Event of Default hereunder arising as a result of any nonpayment
on the Maturity Date in effect prior to such deferral shall be automatically
deemed waived without any further action or notice by any Person.
 
                                   ARTICLE 3.
 
                                   REDEMPTION
 
SECTION 3.01  NOTICES TO TRUSTEE.
 
     If the Company wants to redeem Securities pursuant to Section 3.07 or is
required to redeem Securities pursuant to Section 3.08, it shall notify the
Trustee, by means of an Officer's Certificate at least 60 days prior to the
redemption date (unless a shorter notice period shall be satisfactory to the
Trustee), of the redemption date and the principal amount of Securities to be
redeemed. If the Company elects to reduce the amount of Securities required to
be redeemed pursuant to Section 3.08 as provided therein, it shall notify the
Trustee at least 60 days prior to the redemption date (unless a shorter notice
period shall be satisfactory to the Trustee) of the amount of the reduction and
the basis for it. If the Company elects to credit against any such redemption
Securities it has not previously delivered to the Trustee for cancellation, it
shall deliver the Securities with the notice.
 
SECTION 3.02  SELECTION OF SECURITIES TO BE REDEEMED.
 
     If less than all the Securities are to be redeemed, the Trustee shall
select the Securities to be redeemed on a pro rata basis, by lot or such other
method as the Trustee shall deem fair and equitable. The Trustee shall make the
selection from Securities outstanding and not previously called for redemption.
The Trustee may select for redemption portions of the principal of Securities
that have denominations larger than $1,000. The Securities and portions of them
it selects shall be in amounts of $1,000 or whole multiples of $1,000. The
provisions of this Indenture that apply to Securities called for redemption also
apply to portions of Securities called for redemption. For purposes of any such
selection the Company will, upon request of the Trustee, close for a period of
15 days preceding the mailing of any notice of redemption the registry books of
the Company with respect to the Securities.
 
SECTION 3.03  NOTICE OF REDEMPTION.
 
     At least 15 days but not more than 60 days before a redemption date, the
Company shall mail a notice of redemption by first-class mail to each Holder
whose Securities are to be redeemed.
 
     The notice shall identify the Securities and the principal amount thereof
to be redeemed and shall state:
 
          (1) the redemption date;
 
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<PAGE>   277
 
          (2) the Redemption Price (and the amount of accrued interest to be
     paid on the Securities called for redemption);
 
          (3) the name and address of the Paying Agent;
 
          (4) the provisions of the Securities and this Indenture pursuant to
     which the Securities are to be redeemed;
 
          (5) that Securities called for redemption must be surrendered to the
     Paying Agent to collect the Redemption Price;
 
          (6) that interest on Securities called for redemption ceases to accrue
     on and after the redemption date unless the Company shall default in the
     payment of the Redemption Price; and
 
          (7) the CUSIP number of the Securities.
 
     At the Company's request, the Trustee shall give the notice of redemption
in the Company's name and at the Company's expense.
 
SECTION 3.04  EFFECT OF NOTICE OF REDEMPTION.
 
     Once a notice of redemption is mailed in accordance with the provisions
hereof, the Securities called for redemption become due and payable on the
redemption date at the Redemption Price and, on and after such redemption date
(unless the Company shall default in the payment of the Redemption Price), such
Securities shall cease to bear interest and such Securities shall be deemed not
to be outstanding hereunder and shall not be entitled to any benefits hereunder,
except to receive payment of the Redemption Price together with all accrued
interest to the date fixed for redemption. Upon surrender to the Paying Agent,
such Securities shall be paid at the Redemption Price plus accrued interest to
the redemption date.
 
SECTION 3.05  DEPOSIT OF REDEMPTION PRICE.
 
     On or before the Business Day immediately preceding the redemption date,
the Company shall deposit with the Paying Agent money in funds immediately
available on the redemption date sufficient to pay the Redemption Price of and
accrued interest on all Securities to be redeemed on that date.
 
SECTION 3.06  SECURITIES REDEEMED IN PART.
 
     Upon surrender of a Security that is redeemed in part, the Trustee shall
authenticate for the Holder a new Security equal in principal amount to the
unredeemed portion of the Security surrendered.
 
SECTION 3.07  OPTIONAL REDEMPTION.
 
     The Securities may be redeemed at the option of the Company in whole at any
time or in part from time to time at a price equal to the principal amount to be
redeemed (the "Redemption Price") plus accrued and unpaid interest to the date
of such optional redemption. The Securities may also be redeemed or prepaid by
purchase by the Company on the open market, from time to time, without premium
or penalty.
 
SECTION 3.08  REDEMPTION OR RETIREMENT UPON SALE OF ASSETS.
 
     Following each Sale of Assets by the Company or any Subsidiary (a) all of
the Net Proceeds received as a result of the Sale of Assets (after setting aside
cash reserves such that the Company shall have cash equal to at least $5 million
of working capital) shall be deposited in the Cash Collateral Account (as
defined in the Collateral Agency Agreement) and all non-cash proceeds received
by the Company and its Subsidiaries in respect of the Sale of Assets shall
become Pledged Collateral immediately upon receipt thereof, and (b) so long as
there shall be at least $5 million in the Cash Collateral Account after such
deposit, all such Net Proceeds in the Cash Collateral Account shall be used to
redeem Securities at the then current Redemption Price within 120 days after the
receipt by the Company or any such Subsidiary, as the case may be, of such
proceeds. With the approval of the Board of Directors, the Company may elect,
for purposes of this Section
 
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<PAGE>   278
 
3.08, to be deemed to have deposited such Net Proceeds in the Cash Collateral
Account and to have used them to redeem Securities pursuant to the preceding
sentence to the extent it shall acquire, before or after such Sale of Assets, in
lieu of making all or any portion of the redemptions provided for in this
Section 3.08, through open market or other purchases, Securities with a
principal amount equal to the principal amount of Securities which could have
been redeemed with such amount of Net Proceeds (upon payment of the Redemption
Price plus accrued and unpaid interest thereon) and that have not been
previously credited against redemptions or purchases upon a Sale of Assets,
provided any Securities so purchased shall be delivered to the Trustee for
cancellation within 120 days after the receipt of such Net Proceeds.
 
                                   ARTICLE 4.
 
                                   COVENANTS
 
SECTION 4.01  PAYMENT OF SECURITIES.
 
     The Company shall pay the principal of and interest on the Securities on
the dates and in the manner provided in the Securities and this Indenture.
Principal and interest shall be considered paid on the date due if the Paying
Agent (if other than the Company) holds on that date money sufficient to pay all
principal and interest then due. The Company shall pay interest on overdue
principal at the rate borne by the Securities. At the Company's election, in
lieu of providing for a cash payment on any interest payment date prior to the
Maturity Date, the Company may pay all or any portion of the interest due on any
such interest payment date by authorizing the Trustee to authenticate and
deliver as an interest payment additional Securities in an aggregate principal
amount equal to the amount of such interest payment or the portion thereof not
paid in cash. The Trustee shall distribute such Securities authorized in lieu of
cash to Holders pro rata, by lot or in such other manner, as the Trustee shall
deem fair and equitable including providing for cash payments of interest
amounts below $1,000.
 
SECTION 4.02  MAINTENANCE OF OFFICE OR AGENCY.
 
     The Company will maintain in the Borough of Manhattan, The City of New
York, an office or agency where Securities may be surrendered for registration
of transfer or exchange and where notices and demands to or upon the Company in
respect of the Securities and this Indenture may be served. The Company will
give prompt written notice to the Trustee of the location, and any change in the
location, of such office or agency. If at any time the Company shall fail to
maintain any such required office or agency or shall fail to furnish the Trustee
with the address thereof, such presentations, surrenders, notices and demands
may be made or served at the Corporate Trust Office of the Trustee.
 
     The Company may also from time to time designate one or more other offices
or agencies where the Securities may be presented or surrendered for any or all
such purposes and may from time to time rescind such designations; provided,
however, that no such designation or rescission shall in any manner relieve the
Company of its obligation to maintain an office or agency in the Borough of
Manhattan, The City of New York, for such purposes. The Company will give prompt
written notice to the Trustee of any such designation or rescission and of any
change in the location of any such other office or agency.
 
     The Company hereby designates the Corporate Trust Office of the Trustee as
an agency of the Company in accordance with Section 2.03.
 
SECTION 4.03  SALE OF ASSETS AND SUBSIDIARIES; CORPORATE EXISTENCE.
 
     (a) The Company shall use all reasonable commercial efforts to cause its
assets and its Subsidiaries expeditiously to be sold at the best obtainable
prices to produce Net Proceeds to be applied to redemption and repayment of the
Securities.
 
     (b) Except as permitted in Article 5, the Company will do or cause to be
done all things necessary to preserve and keep in full force and effect its
corporate existence and, pending its sale or liquidation, the corporate
existence of each Subsidiary of the Company; provided, however, that the Company
shall not be
 
                                      M-11
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required to preserve any corporate existence if the Board of Directors shall
determine that the preservation thereof is no longer desirable in the conduct of
the business of the Company and its Subsidiaries as a whole and that the loss
thereof is not disadvantageous in any material respect to the Holders.
 
SECTION 4.04  PAYMENT OF TAXES.
 
     The Company will pay or discharge or cause to be paid or discharged, before
the same shall become delinquent (i) all taxes, assessments and governmental
charges levied or imposed upon the Company or any Subsidiary of the Company, and
(ii) all lawful claims for labor, materials and supplies which, if unpaid, might
by law become a material Lien upon the property of the Company or any Subsidiary
of the Company; provided, however, that the Company shall not be required to pay
or discharge or cause to be paid or discharged any such tax, assessment, charge
or claim whose amount, applicability or validity is being contested in good
faith by appropriate proceedings and for which it has set aside on its books
such reserves as it deems adequate.
 
SECTION 4.05  MAINTENANCE OF PROPERTIES.
 
     Pending sale, the Company will cause the material properties owned by the
Company or any Subsidiary of the Company for use in the conduct of its business
or the business of any such Subsidiary to be maintained and kept in good
condition, repair and working order (subject to ordinary wear and tear) and will
cause to be made all necessary repairs thereof, all as in the judgment of the
Company may be necessary so that the business carried on in connection therewith
may be properly and advantageously conducted; provided, however, that nothing in
this Section shall prevent the Company from discontinuing the maintenance or
repair of any such properties if such discontinuance is, in the judgment of the
Company, desirable in the conduct of its business or the business of any
Subsidiary or in connection with the sale of any assets or Subsidiary and not
disadvantageous in any material respect to the Holders.
 
SECTION 4.06  SEC REPORTS.
 
     At such times as the Company may be required to file reports and other
information with the SEC pursuant to Section 13 or 15(d) of the Exchange Act,
the Company shall deliver to the Trustee, within 15 days after the Company files
with the SEC copies of its annual and quarterly reports and other information,
documents and reports (or copies of such portions of any of the foregoing as the
SEC may by rules and regulations prescribe) copies of such documents which it is
required to file pursuant to such Sections. The Company will mail copies of its
annual reports and quarterly reports as filed with the SEC, other than exhibits
to any such report unless such exhibits are themselves incorporated by reference
in such report, to any Securityholder upon request. If the Company is not
subject or shall cease to be subject to the requirements of Section 13 or 15(d)
of the Exchange Act, the Company shall deliver to the Trustee and to each
Securityholder, within 15 days after the date by which it would have been
required to make such a filing with the SEC, audited annual financial statements
prepared in accordance with generally accepted accounting principles and
unaudited condensed quarterly financial statements, including any notes thereto,
each comparable to that which the Company would have been required to include in
such annual reports, information, documents or other reports if the Company were
then subject to the requirements of Section 13 or 15(d) of the Exchange Act. The
Company also shall comply with the other provisions of TIA sec. 314(a).
 
SECTION 4.07  COMPLIANCE CERTIFICATE.
 
     The Company shall deliver to the Trustee within 120 days after the end of
each fiscal year of the Company, and within 60 days after the end of each of the
first three fiscal quarters of the Company, an Officer's Certificate stating
that, after a review of the activities of the Company during such period and of
the Company's performance under this Indenture, whether or not, to the best
knowledge of the signer thereof based on such review, there has been any Default
or Event of Default by the Company in performing any of its Obligations under
this Indenture or the Securities. If the signer does know of any such Default or
Event of Default, the certificate shall describe the Default or Event of Default
and its status.
 
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SECTION 4.08  LIMITATION ON STOCK PAYMENTS AND INVESTMENTS.
 
     (a) The Company will not declare any dividends (other than dividends
payable solely in Capital Stock of the Company) on any Capital Stock of the
Company or make any payment on account of the purchase, redemption or other
retirement of any shares of such stock or make any distribution in respect
thereof.
 
     (b) The Company will not, and will not permit any of its Subsidiaries to,
directly or indirectly, make any Investment.
 
SECTION 4.09  TRANSACTIONS WITH AFFILIATES.
 
     The Company will not, and will not permit any of its Subsidiaries to,
directly or indirectly (i) sell, lease, exchange, swap, transfer or otherwise
dispose of any material amount of their respective properties, assets or
securities to, (ii) purchase or lease any material amount of property, assets or
securities from, (iii) make any material investment in, or (iv) enter into any
material contract or agreement (other than contracts or agreements substantially
in the form described or incorporated by reference in the Company's Disclosure
Statement approved by the United States Bankruptcy Court) with or for the
benefit of, an Affiliate (other than a Subsidiary of the Company), other than
(A) transactions which the Board of Directors of the Company in good faith
determines are on terms at least as favorable to the Company or such Subsidiary
as could be obtained from an unaffiliated party and are consistent with Section
4.03(a) (provided that if any such transaction and any related transactions
involve an amount or consideration having a fair market value in excess of
$1,000,000, a majority of the directors who are not also employees, officers,
directors or otherwise affiliated with any Affiliate which is a party to such
transaction concur in such determination); (B) employment, compensation and
similar arrangements for the benefit of directors and employees which the Board
of Directors of the Company in good faith determines to be reasonable and in the
best interests of the Company; and (C) transactions contemplated by the
Management Agreement of even date herewith between the Company and the
Guarantor. Nothing in this Section 4.09 shall prohibit any transactions pursuant
to any agreement existing as of the Effective Date.
 
SECTION 4.10  LIMITATION ON ADDITIONAL INDEBTEDNESS AND LIENS.
 
     (a) The Company will not, and will not permit any of its Subsidiaries to,
directly or indirectly, create, incur, issue, assume, guarantee or otherwise
become directly or indirectly liable with respect to any Indebtedness other than
Permitted Indebtedness.
 
     (b) The Company will not, and will not permit any of its Subsidiaries to,
create, incur, assume or suffer to exist any Lien on any asset owned by the
Company or any of its Subsidiaries except Permitted Liens.
 
SECTION 4.11  CONFLICTING AGREEMENTS.
 
     The Company will not, and will not permit any of its Subsidiaries to, enter
into any agreement or execute any instrument (other than agreements or
instruments that relate solely to Permitted Working Capital Loans or which exist
on the Effective Date) that by its terms expressly prohibits or otherwise would
have the effect of prohibiting the Company from redeeming or otherwise making
any payments on or with respect to the Securities pursuant to their terms and
the terms of this Indenture.
 
SECTION 4.12  LIMITATION ON DIVIDENDS AND CERTAIN OTHER RESTRICTIONS AFFECTING
SUBSIDIARIES.
 
     Except as otherwise provided by the terms of this Indenture and any
Permitted Working Capital Loans, the Company will not, and will not permit any
of its Subsidiaries to, create or otherwise cause or suffer to exist or to
become effective any encumbrance or restriction on the ability of any of its
Subsidiaries (i) to pay dividends, make loans, extend guarantees or make any
other distributions to the Company or to other Subsidiaries, or to pay any
Indebtedness owed to the Company or a Subsidiary of the Company; (ii) to make
loans or advances to the Company or another Subsidiary; or (iii) to transfer any
of their respective properties or assets to the Company, other than such
encumbrances or restrictions existing under or by reason of (a) applicable law,
(b) customary non-assignment provisions of any lease governing a leasehold
interest of the
 
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Company or any of its Subsidiaries, and (c) restrictions on the transfer of
assets acquired in connection with the incurrence of Purchase Money
Indebtedness.
 
SECTION 4.13  WAIVER OF STAY, EXTENSION OR USURY LAWS.
 
     The Company covenants (to the extent that it may lawfully do so) that it
will not at any time insist upon, or plead, or in any manner whatsoever claim or
take the benefit or advantage of, any stay or extension law or any usury law or
other law which would prohibit or release the Company from paying all or any
portion of the principal or interest on the Securities as contemplated herein,
wherever enacted, now or at any time hereafter in force, or which may affect the
covenants or the performance of this Indenture, and (to the extent that it may
lawfully do so) the Company hereby expressly waives all benefit or advantage of
any such law, and covenants that it will not hinder, delay or impede the
execution of any power herein granted to the Trustee, but it will suffer and
permit the execution of every such power as though no such law had been enacted.
 
SECTION 4.14  MAINTENANCE OF INSURANCE AND RECORDS, COMPLIANCE WITH LAW.
 
     (a) Except to the extent that, in the exercise of its good faith business
judgment, the Company believes the cost to be incurred in procuring and/or
maintaining insurance to be excessive in view of the benefit to be derived
therefrom, the Company shall, and shall cause its Subsidiaries to, maintain with
financially sound and reputable insurers such (i) liability and property and
casualty insurance as may be required by law and (ii) such other insurance, to
such extent and against such hazards and liabilities (but subject to reduction
in coverage amount appropriate in light of any divestitures of assets made from
time to time) equivalent to the insurance that it currently maintains.
 
     (b) The Company shall keep, or cause to be kept, true books and records and
accounts in which entries will be made of all of the business transactions of
the Company and its Subsidiaries which shall be full and correct in all material
respects, in accordance with sound business practices, and reflect in their
respective financial statements adequate accruals and appropriate reserves, all
in accordance with generally accepted accounting principles.
 
     (c) The Company shall, and shall cause its Subsidiaries to, comply with all
statutes, laws, ordinances, or governmental rules and regulations to which it is
subject, noncompliance with which would materially adversely affect the
prospects, earnings, properties, assets or condition, financial or otherwise, of
the Company and its Subsidiaries taken as a whole.
 
SECTION 4.15  LIMITATION ON REDEMPTION OF CERTAIN INDEBTEDNESS.
 
     The Company will not, and will not permit any of its Subsidiaries to, (i)
redeem pursuant to the optional redemption provisions thereof, or make any
optional payment of principal on, any Permitted Indebtedness; (ii) defease
Permitted Indebtedness; or (iii) issue to the holders of Permitted Indebtedness
in exchange therefor any property or assets (other than the proceeds of any
Refinancing Indebtedness incurred with respect to such Permitted Indebtedness or
securities which do not require payments of principal or interest and are not
mandatorily redeemable on or prior to the Maturity Date).
 
SECTION 4.16  VALUE OF CLAIMS REPRESENTED BY SECURITIES.
 
     The parties hereto covenant and agree that in any case commenced under
Chapter 11 of Title 11 of the United States Code subsequent to the Effective
Date involving the Company, the claims represented by the Securities shall equal
the full principal amount of the Securities, plus accrued and unpaid interest at
the stated rates set forth in the Securities.
 
SECTION 4.17  NOTICE OF DEFAULT.
 
     In the event that any Default under this Indenture shall occur, the Company
will give prompt written notice of such Default to the Trustee, specifying the
nature and status of such Default and the steps which the Company or its
Subsidiaries have taken or propose to take in order to cure such Default.
 
                                      M-14
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SECTION 4.18  INVESTMENT COMPANY ACT OF 1940.
 
     The Company will not, and will not permit any of its Subsidiaries to, take
any action resulting in its becoming an "investment company" (as such term is
defined in the Investment Company Act of 1940, as amended).
 
                                   ARTICLE 5.
 
                                   SUCCESSORS
 
SECTION 5.01  WHEN COMPANY MAY MERGE, ETC.
 
     The Company shall not consolidate or merge with or into any Person unless:
 
          (i) the Person formed by or surviving any such consolidation or merger
     (if other than the Company) is an entity organized and existing under the
     laws of the United States, any state thereof or the District of Columbia;
     and
 
          (ii) the Person formed by or surviving any such consolidation or
     merger (if other than the Company) assumes by supplemental indenture all
     the obligations of the Company under the Securities and this Indenture.
 
     The Company shall deliver to the Trustee prior to the consummation of the
proposed transaction an Officer's Certificate to the foregoing effect and an
Opinion of Counsel stating that the proposed transaction and supplemental
indenture comply with this Indenture.
 
SECTION 5.02  SUCCESSOR SUBSTITUTED.
 
     Upon any consolidation or merger in accordance with Section 5.01, the
successor Person formed by such consolidation or into which the Company is
merged shall succeed to, and be substituted for, and may exercise every right
and power of, and shall assume every duty and obligation of, the Company under
this Indenture with the same effect as if such successor corporation had been
named as the Company herein. When the successor corporation assumes all
obligations of the Company hereunder, all obligations of the predecessor
corporation shall terminate.
 
                                   ARTICLE 6.
 
                             DEFAULTS AND REMEDIES
 
SECTION 6.01  EVENTS OF DEFAULT.
 
     An "Event of Default" occurs if:
 
          (1) the Company defaults in the payment of interest on any Security
     when the same becomes due and payable, whether at maturity, in connection
     with any redemption, by acceleration or otherwise, and such default
     continues for a period of 30 days;
 
          (2) the Company defaults in the payment of the principal of any
     Security when the same becomes due and payable, whether at maturity, in
     connection with any redemption, by acceleration or otherwise and such
     default continues for a period of 30 days after the earlier of (i) the date
     on which written notice of such failure, requiring the Company to remedy
     the same, shall have been given to the Company by the Trustee, or to the
     Company and the Trustee by the Holders of at least 25% in aggregate
     principal amount of the Securities at the time outstanding or (ii) the date
     on which the Company had Actual Knowledge of such failure;
 
          (3) the Company or any of its Subsidiaries fails to observe or perform
     in any material respect any of its other covenants or agreements in the
     Securities, this Indenture or the Collateral Agency Agreement or any other
     agreement or instrument now or hereafter entered into creating, perfecting,
     or evidencing the
 
                                      M-15
<PAGE>   283
 
     Lien in and on any of the Pledged Collateral in favor of the Collateral
     Agent for the benefit of the Holders of the Securities, which failure
     continues for a period of 30 days after the earlier of (i) the date on
     which written notice of such failure, requiring the Company to remedy the
     same, shall have been given to the Company by the Trustee, or to the
     Company and the Trustee by the Holders of at least 25% in aggregate
     principal amount of the Securities at the time outstanding or (ii) the date
     on which the Company had Actual Knowledge of such failure;
 
          (4) (a) the Company or any of its Subsidiaries fails to pay when due
     (whether at maturity, in connection with any mandatory amortization or
     redemption, by acceleration or otherwise) any principal or interest on any
     Indebtedness with an aggregate outstanding principal amount in excess of $2
     million, whether any such Indebtedness is outstanding as of the date of
     this Indenture or is hereafter outstanding, which default continues for the
     greater of any period of grace applicable thereto or 60 days from the date
     of such default, or (b) a default or event of default, as defined in one or
     more indentures, agreements or other instruments evidencing or under which
     the Company or any of its Subsidiaries individually or collectively have,
     as of the date of this Indenture or hereafter, outstanding at least $2
     million aggregate principal amount of Indebtedness, shall happen and be
     continuing and such Indebtedness shall have been accelerated so that it is
     due and payable prior to the date on which it would otherwise have become
     due and payable, and such acceleration shall not be rescinded or annulled
     within 60 days after the earlier of (i) the date on which written notice of
     such acceleration shall have been given to the Company by the Trustee, or
     to the Company and the Trustee by the Holders of at least 25% in aggregate
     principal amount of the Securities at the time outstanding or (ii) the date
     on which the Company had Actual Knowledge of such acceleration; provided
     that if such default or event of default under such indenture or other
     instrument shall be remedied or cured by the Company or the Subsidiary or
     waived by the holders of such Indebtedness, then the Event of Default under
     this Indenture by reason thereof shall be deemed likewise to have been
     thereupon remedied, cured or waived without further action upon the part of
     either the Trustee or any of the Holders of Securities;
 
          (5) one or more final judgments against the Company or any of its
     Subsidiaries for payments of money which in the aggregate exceed $2
     million, are entered by a court of competent jurisdiction and such
     judgments are not rescinded, annulled, stayed or discharged within 90 days;
 
          (6) the Company and its Subsidiaries, taken as a whole, becomes
     insolvent;
 
          (7) the Company or any of its material Subsidiaries, pursuant to or
     within the meaning of any Bankruptcy Law:
 
             (a) commences a voluntary case,
 
             (b) consents to the entry of a judgment, decree or order for relief
        against it in an involuntary case or proceeding,
 
             (c) consents to the appointment of a Custodian of the Company or
        such material Subsidiary or for all or substantially all of its
        property,
 
             (d) makes a general assignment for the benefit of its creditors, or
 
             (e) applies for, consents to or acquiesces in the appointment of,
        or taking possession by a Custodian;
 
          (8) a court of competent jurisdiction enters a judgment, decree or
     order for relief in respect of the Company or any of its material
     Subsidiaries in an involuntary case or proceeding under any Bankruptcy Law
     which shall
 
             (a) approve as properly filed a petition seeking reorganization,
        arrangement, adjustment or composition;
 
             (b) appoint a Custodian for any part of its property; or
 
             (c) order the winding up or liquidation of its affairs;
 
                                      M-16
<PAGE>   284
 
and such judgment, decree or order remains unstayed and in effect for a period
of sixty (60) consecutive days; or
 
          (9) any bankruptcy or insolvency petition or application is filed, or
     any bankruptcy case or insolvency proceeding is commenced against, the
     Company or any of its material Subsidiaries and such petition, application,
     case or proceeding is not dismissed or stayed within ninety (90) days.
 
     The term "Bankruptcy Law" means Title 11, U.S. Code or any similar Federal
or State law for the relief of debtors. The term "Custodian" means any receiver,
trustee, assignee, liquidator or similar official under any Bankruptcy Law. The
term "Actual Knowledge" means the actual knowledge of any executive officer of
the Company; provided, however, that each executive officer of the Company shall
be deemed to have actual knowledge of any fact that would have come to such
officer's attention if he or she had exercised reasonable care in performing his
or her duties, given the nature of his or her duties and the Company's business
and organization.
 
SECTION 6.02  ACCELERATION.
 
     If an Event of Default (other than an Event of Default specified in Section
6.01(6), (7), (8) or (9) occurs and is continuing, the Trustee by notice to the
Company, or the Holders of at least 25% in principal amount of the Securities by
notice to the Company and the Trustee, may declare the principal of and accrued
interest on all the Securities to be due and payable. Upon such declaration such
principal and interest shall be due and payable immediately. If an Event of
Default specified in Section 6.01(6), (7), (8) or (9) occurs, all unpaid
principal and accrued interest on the Securities then outstanding shall ipso
facto become and be immediately due and payable without any declaration or other
act on the part of the Trustee or any Securityholder. The Holders of at least
66 2/3% of the principal amount of the Securities may rescind an acceleration
and its consequences by notice to the Trustee if the rescission would not
conflict with any judgment or decree and if the outstanding Events of Default
have been cured or waived except for nonpayments of any amounts that have become
due solely because of the acceleration. No such rescission shall affect any
subsequent Default or impair any right or remedy with respect thereto. In the
event any Deferral Notice is provided to the Guarantor as provided in Section
2.13, any previous acceleration due to nonpayment on the Maturity Date in effect
immediately prior to such deferral shall be automatically rescinded without any
further action or notice by any Person and any Defaults or Events of Default
arising as a result of such nonpayment shall be automatically deemed waived
without any further action or notice by any Person.
 
SECTION 6.03  OTHER REMEDIES.
 
     Notwithstanding any other provision of this Indenture, if an Event of
Default occurs and is continuing, the Trustee may pursue any available remedy by
proceeding at law or in equity to collect the payment of principal of or
interest on the Securities or to enforce the performance of any provision of the
Securities or this Indenture.
 
     The Trustee may maintain a proceeding even if it does not possess any of
the Securities or does not produce any of them in the proceeding. A delay or
omission by the Trustee or any Securityholder in exercising any right or remedy
accruing upon an Event of Default shall not impair the right or remedy or
constitute a waiver of or acquiescence in the Event of Default. No remedy is
exclusive of any other remedy. All remedies are cumulative.
 
     In case the Trustee shall have proceeded to enforce any rights under this
Indenture and such proceedings shall have been discontinued or abandoned for any
reason or shall have been determined adversely to the Trustee, then and in every
such case the Company, the Trustee and the Holders shall, subject to any
determination in such proceeding, be restored respectively to their former
positions and rights hereunder, and all rights, remedies and powers of the
Company and the Trustee shall continue as though no such proceeding had been
taken.
 
                                      M-17
<PAGE>   285
 
SECTION 6.04  WAIVER OF PAST DEFAULTS.
 
     Subject to Sections 6.07 and 9.02, the Holders of at least 66 2/3% of the
principal amount of the Securities by notice to the Trustee may waive an
existing Default or Event of Default and its consequences. When a Default or
Event of Default is waived, it is cured and ceases.
 
SECTION 6.05  CONTROL BY MAJORITY.
 
     The Holders of a majority in principal amount of the Securities may direct
the time, method and place of conducting any proceeding for any remedy available
to the Trustee or exercising any trust or power conferred on it. The Trustee,
however, may refuse to follow any direction that conflicts with law or this
Indenture, is unduly prejudicial to the rights of any Securityholder or would
subject the Trustee to personal liability; provided, the Trustee may take any
other action deemed proper by the Trustee which is not inconsistent with such
direction. The Company may set a record date for purposes of determining who may
exercise such control.
 
SECTION 6.06  LIMITATION ON SUITS.
 
     Except as provided in Section 6.07, a Securityholder may pursue a remedy
with respect to this Indenture or the Securities only if:
 
          (1) the Holder gives to the Trustee written notice of a continuing
     Event of Default;
 
          (2) the Holders of at least 25% in principal amount of the Securities
     make a written request to the Trustee to pursue the remedy;
 
          (3) such Holder or Holders offer to the Trustee indemnity reasonably
     satisfactory to the Trustee against any loss, liability or expense;
 
          (4) the Trustee does not comply with the request within 60 days after
     receipt of the request and the offer of indemnity; and
 
          (5) during such 60-day period the Holders of a majority in principal
     amount of the Securities do not give the Trustee a direction inconsistent
     with the request.
 
     A Securityholder may not use this Indenture to prejudice the rights of any
other Securityholder or to obtain a preference or priority over any other
Securityholder.
 
SECTION 6.07  RIGHTS OF HOLDERS TO RECEIVE PAYMENT.
 
     Subject only to Section 2.13 and 6.02 hereof, the right of any Holder of a
Security to receive payment of principal of and interest on the Security, on or
after the respective due dates (prior to any acceleration) expressed in the
Security, or to bring suit for the enforcement of any such payment on or after
such respective dates, shall not be impaired or affected without the consent of
the Holder, except that no Holder of Securities shall have the right to
institute any such suit if and to the extent that the institution or prosecution
thereof or the entry of judgment therein would, under applicable law, result in
the surrender, impairment, waiver or loss of the Lien of the Collateral Agency
Agreement upon any of the Pledged Collateral.
 
SECTION 6.08  COLLECTION SUIT BY TRUSTEE.
 
     If an Event of Default specified in Section 6.01(1) or (2) occurs and is
continuing, the Trustee may recover judgment in its own name and as trustee of
an express trust against the Company for the whole amount of principal and
interest in default.
 
SECTION 6.09  TRUSTEE MAY FILE PROOFS OF CLAIMS.
 
     The Trustee may file such proofs of claim and other papers or documents as
may be necessary or advisable in order to have the claims of the Trustee, any
predecessor Trustee and the Securityholders allowed in any judicial proceedings
relative to the Company, its creditors or its property.
 
                                      M-18
<PAGE>   286
 
     Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder of the
Securities any plan of reorganization, arrangement, adjustment or composition
affecting the Securities or the rights of any Holder thereof, or to authorize
the Trustee to vote in respect of the claim of any Holder of the Securities in
any such proceeding.
 
SECTION 6.10  PRIORITIES.
 
     If the Trustee collects any money pursuant to this Article, it shall pay
out the money in the following order:
 
          First:  to the Trustee for amounts due under Section 7.07;
 
          Second:  to Securityholders for amounts due and unpaid on the
     Securities for principal and interest, ratably, without preference or
     priority of any kind, according to the amounts due and payable on the
     Securities for principal and interest, respectively;
 
          Third:  to the Company or such other Person as is legally entitled
     thereto.
 
     The Trustee may fix a record date and payment date for any payment by it to
Securityholders pursuant to this Section.
 
SECTION 6.11  UNDERTAKING FOR COSTS.
 
     In any suit for the enforcement of any right or remedy under this Indenture
or in any suit against the Trustee for any action taken or omitted by it as
Trustee, a court in its discretion may require any party litigating the suit
other than the Trustee to file an undertaking to pay the costs of the suit, and
the court in its discretion may assess reasonable costs, including reasonable
attorneys' fees, against any party litigant in the suit, having due regard to
the merits and good faith of the claims or defenses made by the party litigant.
This Section does not apply to a suit by the Trustee, a suit by a Holder
pursuant to Section 6.07, or a suit by Holders of more than 10% in principal
amount of the Securities.
 
                                   ARTICLE 7.
 
                                    TRUSTEE
 
SECTION 7.01  ACCEPTANCE OF TRUSTS; DUTIES OF TRUSTEE.
 
     The Trustee hereby accepts the trusts imposed upon it by this Indenture and
covenants and agrees to perform the same as herein expressed.
 
     (a) If an Event of Default has occurred and is continuing, the Trustee
shall exercise such of the rights and powers vested in it by this Indenture, and
use the same degree of care and skill in their exercise, as a prudent Person
would exercise or use under the circumstances in the conduct of his or her own
affairs.
 
     (b) Except during the continuance of an Event of Default:
 
          (1) The Trustee need perform only those duties that are specifically
     set forth in this Indenture and no others.
 
          (2) In the absence of bad faith on its part, the Trustee may
     conclusively rely, as to the truth of the statements and the correctness of
     the opinions expressed therein, upon certificates or opinions furnished to
     the Trustee and conforming to the requirements of this Indenture. However,
     the Trustee shall examine the certificates and opinions to determine
     whether or not they conform to the requirements of this Indenture.
 
     (c) The Trustee may not be relieved from liability for its own negligent
action, its own negligent failure to act or its own willful misconduct, except
that:
 
          (1) This paragraph does not limit the effect of paragraph (b) of this
     Section 7.01.
 
                                      M-19
<PAGE>   287
 
          (2) The Trustee shall not be liable with respect to any error of
     judgment made in good faith by a Trust Officer, unless it is proved that
     the Trustee was negligent in ascertaining the pertinent facts.
 
          (3) The Trustee shall not be liable with respect to any action it
     takes or omits to take in good faith in accordance with a direction
     received by it pursuant to Section 6.05.
 
     (d) Every provision of this Indenture that in any way relates to the
Trustee is subject to paragraphs (a), (b) and (c) of this Section 7.01.
 
     (e) The Trustee may refuse to exercise any of its rights or powers under
this Indenture at the request of any Holders unless such Holders shall have
offered to the Trustee indemnity reasonably satisfactory to it against any loss,
liability or expense. No provision of this Indenture shall require the Trustee
to expend or risk its own funds or otherwise incur any financial liability in
the performance of any of its duties hereunder, or in the exercise of its rights
or power, if it has reasonable grounds for believing, and does believe in good
faith, that repayment of such funds or adequate indemnity against such risk or
liability is not reasonably assured to it.
 
     (f) The Trustee shall not be liable for interest on any money received by
it except as the Trustee may agree with the Company. Money held in trust by the
Trustee need not be segregated from other funds except to the extent required by
law.
 
SECTION 7.02  RIGHTS OF TRUSTEE.
 
     (1) The Trustee may rely on any document believed by it to be genuine and
to have been signed or presented by the proper Person. The Trustee need not
investigate any fact or matter stated in the document.
 
     (2) Before the Trustee acts or refrains from acting, it may require an
Officer's Certificate and/or an Opinion of Counsel and may consult with its
counsel. The Trustee shall not be liable for any action it takes or omits to
take in good faith in reliance on such Certificate, Opinion or advice of such
counsel.
 
     (3) The Trustee may act through agents and shall not be responsible for the
misconduct or negligence of any agent appointed with due care.
 
SECTION 7.03  INDIVIDUAL RIGHTS OF TRUSTEE.
 
     The Trustee in its individual or any other capacity may become the owner or
pledgee of Securities and may otherwise deal with the Company or an Affiliate
thereof with the same rights it would have if it were not Trustee. Any Agent may
do the same with like rights. The Trustee, however, must comply with Sections
7.10 and 7.11.
 
SECTION 7.04  TRUSTEE'S DISCLAIMER.
 
     The Trustee makes no representation as to the validity or adequacy of this
Indenture or the Securities, and it shall not be responsible for any statement
in the Securities other than its certificate of authentication.
 
SECTION 7.05  NOTICE OF DEFAULTS.
 
     If a Default occurs and is continuing and if it is known to the Trustee,
the Trustee shall mail to each Securityholder a notice of the Default within 90
days after it occurs. Except in the case of a Default in payment of principal of
or interest on any Security, the Trustee may withhold the notice if and so long
as it in good faith determines that withholding the notice is in the interests
of Securityholders.
 
SECTION 7.06  REPORTS BY TRUSTEE TO HOLDERS.
 
     Within 60 days after each      beginning with             , 1994, the
Trustee shall mail to each Securityholder as required by TIA sec. 313(c) a brief
report dated as of such date that complies with TIA sec. 313(a). The Trustee
also shall comply with TIA sec. 313(b).
 
                                      M-20
<PAGE>   288
 
     A copy of each report at the time of its mailing to Securityholders shall
be filed by the Trustee with the SEC and each stock exchange, if any, on which
the Securities are listed. The Company shall notify the Trustee when the
Securities are listed on any stock exchange.
 
SECTION 7.07  COMPENSATION AND INDEMNITY.
 
     The Company shall pay to the Trustee from time to time such compensation
for its services as shall be agreed upon in writing. The Trustee's compensation
shall not be limited by any law on compensation of a trustee of an express
trust. The Company shall reimburse the Trustee upon request for all reasonable
out-of-pocket expenses, advances and disbursements incurred by it. Such expenses
shall include the reasonable compensation and out-of-pocket expenses of the
Trustee's agents and counsel.
 
     Except as hereinafter provided in this paragraph, the Company shall
indemnify the Trustee against any loss or liability (including the reasonable
fees and expenses of counsel) incurred by it in connection with the
administration of this trust and the performance of its duties hereunder. The
Company need not pay for any settlement made without its consent. The Trustee
shall notify the Company promptly of any claim for which it may seek
indemnification. The Company need not reimburse any expense or indemnify against
any loss or liability incurred by the Trustee through the Trustee's negligence
or bad faith.
 
     To secure the Company's payment obligations in this Section, the Trustee
shall have a lien prior to the Securities on all money or property held or
collected by the Trustee except that held in trust to pay principal and interest
on particular Securities.
 
     When the Trustee incurs expenses or renders services after an Event of
Default specified in Section 6.01(6), (7), (8) or (9) occurs, the expenses and
the compensation for services are intended to constitute expenses of
administration under any Bankruptcy Law.
 
SECTION 7.08  REPLACEMENT OF TRUSTEE.
 
     A resignation or removal of the Trustee and appointment of a successor
Trustee shall become effective only upon the successor Trustee's acceptance of
appointment as provided in this Section.
 
     The Trustee may resign by so notifying the Company. The Holders of a
majority in principal amount of the Securities may remove the Trustee by so
notifying the Trustee and the Company and may appoint a successor Trustee with
the Company's consent. The Company may remove the Trustee if:
 
          (1) the Trustee fails to comply with Section 7.10;
 
          (2) the Trustee is adjudged a bankrupt or an insolvent;
 
          (3) a receiver or other public officer takes charge of the Trustee or
     its property;
 
          (4) the Trustee becomes incapable of acting; or
 
          (5) in the Company's good faith judgment, the Trustee's fees and
     expense structure for acting as such hereunder become materially
     non-competitive.
 
     If the Trustee resigns or is removed or if a vacancy exists in the office
of Trustee for any reason, the Company shall promptly appoint a successor
Trustee. Within one year after the successor Trustee takes office, the Holders
of a majority in principal amount of the Securities may appoint a successor
Trustee to replace the successor Trustee appointed by the Company.
 
     If a successor Trustee does not take office within 30 days after the
retiring Trustee resigned or is removed, the retiring Trustee, the Company or
the Holders of at least 10% in principal amount of the Securities may petition
any court of competent jurisdiction for the appointment of a successor Trustee.
 
     If the Trustee fails to comply with Section 7.10, any Holder may petition
any court of competent jurisdiction for the removal of the Trustee and the
appointment of a successor Trustee.
 
                                      M-21
<PAGE>   289
 
     A successor Trustee shall deliver a written acceptance of its appointment
to the retiring Trustee and to the Company. Thereupon the resignation or removal
of the retiring Trustee shall become effective and the successor Trustee shall
have all the rights, powers and duties of the Trustee under this Indenture. The
successor Trustee shall mail a notice of its succession to Securityholders. The
retiring Trustee shall promptly transfer all property held by it as Trustee to
the successor Trustee, subject to the lien provided for in Section 7.07.
 
SECTION 7.09  SUCCESSOR TRUSTEE BY MERGER, ETC.
 
     If the Trustee consolidates, merges or converts into, or transfers all or
substantially all of its corporate trust business to another corporation, the
successor corporation without any further act shall be the successor Trustee.
 
SECTION 7.10  ELIGIBILITY; DISQUALIFICATION.
 
     This Indenture shall always have a Trustee who satisfies the requirements
of TIA sec. 310(a)(1). The Trustee shall always have a combined capital and
surplus of at least $50,000,000 as set forth in its most recent published annual
report of condition. The Trustee shall comply with TIA sec. 310(b), including
the optional provision permitted by the second sentence of TIA sec. 310(b)(9).
 
SECTION 7.11  PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY.
 
     The Trustee shall comply with TIA sec. 311(a), excluding any creditor
relationship listed in TIA sec. 311(b). A Trustee who has resigned or been
removed shall be subject to TIA sec. 311(a) to the extent indicated.
 
                                   ARTICLE 8.
 
                             DISCHARGE OF INDENTURE
 
SECTION 8.01  TERMINATION OF COMPANY'S OBLIGATIONS.
 
     All of the Company's obligations under this Indenture shall terminate when
Securities previously authenticated and delivered (other than mutilated,
destroyed, lost or stolen Securities which have been replaced or paid) have been
delivered to the Trustee for cancellation or if:
 
          (1) the Securities mature within six months or all of them are to be
     called for redemption within six months;
 
          (2) the Company irrevocably deposits in trust with the Trustee,
     pursuant to an irrevocable trust and security agreement in form and
     substance reasonably satisfactory to the Trustee, money or U.S. Government
     Obligations sufficient to pay principal of and interest on the Securities
     to maturity or redemption, as the case may be, and all other sums payable
     by the Company to the Holders of the Securities hereunder. The Company may
     make the deposit only during the six-month period. Immediately after making
     the deposit, the Company shall give notice of such event to the Holders;
 
          (3) the Company has paid or caused to be paid all sums then payable by
     the Company to the Trustee hereunder as of the date of such deposit;
 
          (4) the Company has delivered to the Trustee an Officer's Certificate
     stating that all conditions precedent provided for herein relating to the
     satisfaction and discharge of this Indenture have been complied with; and
 
          (5) the Company has delivered to the Trustee either (i) an unqualified
     Opinion of Counsel, stating that the Holders of the Securities (a) will not
     recognize income, gain or loss for Federal income tax purposes as a result
     of such deposit (and the defeasance contemplated in connection therewith)
     and (b) will be subject to Federal income tax on the same amounts and in
     the same manner and at the same
 
                                      M-22
<PAGE>   290
 
     times as would have been the case if such deposit and defeasance had not
     occurred, or (ii) an applicable favorable ruling to that effect received
     from or published by the Internal Revenue Service.
 
Notwithstanding the foregoing, the Company's obligations in Sections 2.03, 2.04,
2.05, 2.06, 2.07, 4.01, 7.07, 7.08 and 8.03 shall survive until the Securities
are no longer outstanding, and the Company's obligations pursuant to Sections
7.07 and 8.03 shall survive any such termination.
 
     After a deposit pursuant to this Section 8.01, the Trustee upon request
shall acknowledge in writing the discharge of the Company's obligations under
the Securities and this Indenture except for those surviving obligations
specified above.
 
     In order to have money available on a payment date to pay principal or
interest on the Securities, the U.S. Government Obligations shall be payable as
to principal or interest on or before such payment date in such amounts as will
provide the necessary money.
 
SECTION 8.02  APPLICATION OF TRUST MONEY.
 
     The Trustee shall hold in trust money or U.S. Government Obligations
deposited with it pursuant to Section 8.01, 3.05 and 3.08 and any cash or
Payment Notes paid to it by the Guarantor under the Guarantee Agreement. It
shall apply the deposited money and the money from U.S. Government Obligations
and any cash or Payment Notes paid to it by the Guarantor under the Guarantee
Agreement through the Paying Agent and in accordance with this Indenture to the
payment of principal of and interest on the Securities.
 
SECTION 8.03  REPAYMENT TO COMPANY.
 
     The Trustee and the Paying Agent shall promptly pay to the Company upon
request any excess money or securities held by them at any time. The Trustee and
the Paying Agent shall pay to the Company upon request any money held by them
for the payment of principal or interest that remains unclaimed for two years;
provided, however, that the Trustee or such Paying Agent, before being required
to make any such repayment, may, at the expense of the Company, cause to be
published once in a newspaper of general circulation in The City of New York or
cause to be mailed to each Holder, a notice stating that such money remains and
that, after a date specified therein, which shall not be less than 30 days from
the date of such publication or mailing, any unclaimed balance of such money
then remaining will be repaid to the Company. After payment to the Company,
Securityholders entitled to the money must look to the Company for payment as
general creditors unless an applicable abandoned property law designates another
Person.
 
SECTION 8.04  REINSTATEMENT.
 
     If the Trustee or Paying Agent is unable to apply any money or U.S.
Government Obligations in accordance with Section 8.01 by reason of any legal
proceeding or by reason of any order or judgment of any court or governmental
authority enjoining, restraining or otherwise prohibiting such application, the
Company's obligations under this Indenture and the Securities shall be revived
and reinstated as though no deposit has occurred pursuant to Section 8.01 until
such time as the Trustee or Paying Agent is permitted to apply all such money or
U.S. Government Obligations in accordance with Section 8.01; provided, however,
that if the Company has made any payment of interest on or principal of any
Securities because of the reinstatement of its obligations, the Company shall be
subrogated to the rights of the Holders of such Securities to receive such
payment from the money or U.S. Government Obligations held by the Trustee or
Paying Agent.
 
                                   ARTICLE 9.
 
                                   AMENDMENTS
 
SECTION 9.01  WITHOUT CONSENT OF HOLDERS.
 
     The Company, with the consent of the Trustee, may amend or supplement this
Indenture or the Securities without notice to or the consent of any
Securityholder:
 
          (1) to cure any ambiguity, omission, defect or inconsistency;
 
                                      M-23
<PAGE>   291
 
          (2) to comply with Section 5.01;
 
          (3) to provide for uncertified securities; or
 
          (4) to make any change that does not adversely affect the rights of
     any Securityholder.
 
SECTION 9.02  WITH CONSENT OF HOLDERS.
 
     The Company, with the consent of the Trustee, may amend or supplement this
Indenture or the Securities without notice to any Securityholder but with the
written consent of the Holders of at least 66 2/3% (except as hereinafter
provided) of the principal amount of the Securities. Subject to Section 6.07,
the Holders of a majority (except as hereinafter provided) in principal amount
of the Securities may waive compliance by the Company with any provision of this
Indenture or the Securities without notice to any Securityholder. However,
without the consent of each Securityholder affected, no amendment, supplement or
waiver (other than as provided in Section 2.13 and 6.02 hereof), including a
waiver pursuant to Section 6.04, may:
 
          (1) reduce the amount of Securities whose Holders must consent to an
     amendment, supplement or waiver;
 
          (2) reduce the rate of or change the time for payment of interest on
     any Security;
 
          (3) reduce the principal of or change the fixed maturity of any
     Security or alter the redemption provisions with respect thereto;
 
          (4) waive a default in the payment of principal of, premium, if any,
     or interest on any Security;
 
          (5) make any Security payable in money other than that stated in the
     Security; or
 
          (6) make any change in Section 6.04, Section 6.07 or this Section
     9.02.
 
     Promptly after an amendment under this Section becomes effective, the
Company shall mail to the Securityholders a notice briefly describing the
amendment.
 
     It shall not be necessary for the consent of the Holders under this Section
to approve the particular form of any proposed amendment or supplement, but it
shall be sufficient if such consent approves the substance thereof.
 
SECTION 9.03  COMPLIANCE WITH TRUST INDENTURE ACT.
 
     Every amendment to this Indenture or the Securities shall comply with the
TIA as then in effect.
 
SECTION 9.04  REVOCATION AND EFFECT OF CONSENTS.
 
     Until an amendment, supplement or waiver becomes effective, a consent to it
by a Holder of a Security is a continuing consent by the Holder and every
subsequent Holder of a Security or portion of a Security that evidences the same
debt as the consenting Holder's Security, even if notation of the consent is not
made on any Security. However, any such Holder or subsequent Holder may revoke
the consent as to his Security or portion of a Security if the Trustee receives
the notice of revocation before the date the amendment, supplement or waiver
becomes effective. An amendment, supplement or waiver becomes effective in
accordance with its terms.
 
     After an amendment, supplement or waiver becomes effective with respect to
the Securities, it shall bind every Securityholder unless it makes a change
described in any of clauses (1) through (6) of Section 9.02. In that case the
amendment, supplement or waiver shall bind each Holder of a Security who has
consented to it and, provided that notice of such amendment, supplement or
waiver is reflected on a Security that evidences the same debt as the consenting
Holder's Security, every subsequent Holder of a Security or portion of a
Security that evidences the same debt as the consenting Holder's Security.
 
                                      M-24
<PAGE>   292
 
SECTION 9.05  NOTATION ON OR EXCHANGE OF SECURITIES.
 
     If an amendment, supplement or waiver changes the terms of a Security, the
Trustee may require the Holder of the Security to deliver it to the Trustee. The
Trustee may place an appropriate notation on the Security about the changed
terms and return it to the Holder. Alternatively, if the Company or the Trustee
so determines, the Company in exchange for the Security shall issue and the
Trustee shall authenticate a new Security that reflects the changed terms.
 
SECTION 9.06  TRUSTEE PROTECTED.
 
     The Trustee need not sign any amendment, supplement or waiver authorized
pursuant to this Article that adversely affects the Trustee's rights. The
Trustee shall be entitled to receive and rely upon an Opinion of Counsel and an
Officer's Certificate that any supplemental indenture complies with the
Indenture.
 
                                  ARTICLE 10.
 
                                    SECURITY
 
SECTION 10.01  COLLATERAL AGENCY AGREEMENT AND GUARANTEE AGREEMENT.
 
     The Company hereby agrees to grant and, with respect to the Company's
outstanding Common Stock the Guarantor has granted pursuant to the Pledge
Agreement, as defined in the Guarantee Agreement, to the Trustee for the benefit
of the Securityholders a first priority security interest (subject to senior
liens, if any, on                          ) in the Pledged Collateral and the
Common Stock, respectively.
 
     Each Securityholder, by accepting a Security, agrees to all of the terms
and provisions of the Collateral Agency Agreement pursuant to which the
Securities will be secured (including, without limitation, the provisions of
Section 9 of the Collateral Agency Agreement providing for the release of the
Pledged Collateral), the Guarantee Agreement and the Pledge Agreement, as the
same may be in effect or may be amended from time to time pursuant to their
terms. The due and punctual payment of the principal and interest on the
Securities, when and as the same shall be due and payable, whether on an
interest payment date, at maturity, by acceleration, following call for
redemption or otherwise, and the payment and performance of all other
obligations of the Company to the Holders or the Trustee under this Indenture,
according to the terms hereof, shall be secured as and to the extent provided in
the Collateral Agency Agreement and the Guarantee Agreement.
 
SECTION 10.02  FURTHER ASSURANCES.
 
     The Company and its Subsidiaries have executed and delivered, filed and
recorded (to the extent that it may currently do so under applicable law) and
will execute and deliver, file and record, all instruments and documents, and
have done and will do all such acts and other things, at the Company's expense,
as may be necessary or desirable, or that the Trustee may reasonably request, to
subject the Pledged Collateral to the Liens intended to be created pursuant to
the Collateral Agency Agreement (which Liens are defined herein as the "Security
Interests"), to perfect, maintain and protect the Security Interests and, in the
case of the existence of an Event of Default, to enable the Trustee to exercise
and enforce its rights and remedies with respect to the Security Interests.
 
     The Company shall cause (a) TIA sec. 314(b), relating to Opinions of
Counsel regarding the Liens created under the Collateral Agency Agreement and
(b) TIA sec. 314(d), relating to the release of Pledged Collateral from the
Liens created under the Collateral Agency Agreement and Officer's Certificates
or other documents regarding fair value of the Pledged Collateral, to be
complied with to the extent applicable. Any certificate or opinion required by
TIA sec. 314(d) may be made by an Officer of the Company to the extent permitted
by TIA sec. 314(d).
 
SECTION 10.03 AUTHORIZATION OF ACTIONS TO BE TAKEN BY THE TRUSTEE UNDER THE
              COLLATERAL AGENCY AGREEMENT AND THE GUARANTEE AGREEMENT.
 
                                      M-25
<PAGE>   293
 
     Except as otherwise provided therein, the Trustee may, in its sole
discretion and without the consent of the Securityholders, take all actions it
deems necessary or appropriate in order to (i) enforce any of the terms of the
Collateral Agency Agreement and the Guarantee Agreement and (ii) collect and
receive any and all amounts payable in respect of the obligations of the Company
thereunder. Such actions shall include, but not be limited to, advising,
instructing or otherwise directing the Collateral Agent in connection with
enforcing or effecting any term or provision of the Collateral Agency Agreement
or the Guarantee Agreement. Subject to the provisions of the Collateral Agency
Agreement and the Guarantee Agreement, the Trustee shall have power to institute
and to maintain such suits and proceedings as it may deem expedient to prevent
any impairment of the collateral pledged thereunder by any acts that may be
unlawful or in violation of the Collateral Agency Agreement, the Guarantee
Agreement, the Pledge Agreement under the Guarantee Agreement or this Indenture,
and such suits and proceedings as the Trustee may deem expedient to preserve or
protect its interests and the interests of the Securityholders in such
collateral.
 
SECTION 10.04 AUTHORIZATION OF RECEIPT OF FUNDS BY THE TRUSTEE UNDER THE
              COLLATERAL AGENCY AGREEMENT AND THE GUARANTEE AGREEMENT.
 
     The Trustee is authorized to receive any funds for the benefit of
Securityholders distributed under the Collateral Agency Agreement or the
Guarantee Agreement, and to make further distributions of such funds to the
Holders according to the provisions of this Indenture.
 
SECTION 10.05  TERMINATION OF SECURITY INTEREST.
 
     Upon the payment in full of all obligations of the Company under this
Indenture and the Securities, the Trustee shall, at the request of the Company,
deliver a certificate to the Collateral Agent stating that such obligations have
been paid in full.
 
SECTION 10.06  SECURITY DOCUMENTS.
 
     The Company shall take any and all actions required to cause the Collateral
Agency Agreement to create, as security for the obligations under this Indenture
and the Securities, a valid and enforceable perfected lien in and on all of the
Pledged Collateral, in favor of the Collateral Agent for the benefit of the
Holders of the Securities, superior to and prior to the rights of all third
Persons (other than        ) and subject to no other Liens other than Permitted
Liens.
 
                                  ARTICLE 11.
 
                                 MISCELLANEOUS
 
SECTION 11.01  TRUST INDENTURE ACT CONTROLS.
 
     If any provision of this Indenture limits, qualifies or conflicts with
another provision which is required to be included in this Indenture by the TIA,
the required provision shall control.
 
SECTION 11.02  NOTICES.
 
     Any notice or communication by the Company or the Trustee to the other is
duly given if in writing and when delivered in person, mailed by first-class
mail or by express delivery to the other's address stated in this Section 11.02.
The Company or the Trustee by notice to the other may designate additional or
different addresses for subsequent notices or communications.
 
     Any notice or communication to a Securityholder shall be mailed by
first-class mail to his or her address shown on the register kept by the
Registrar. Failure to mail a notice or communication to a Securityholder or any
defect in it shall not affect its sufficiency with respect to other
Securityholders.
 
     If a notice or communication is mailed in the manner provided above within
the time prescribed, it is duly given, whether or not the addressee receives it.
 
                                      M-26
<PAGE>   294
 
     If the Company mails a notice or communication to Securityholders, it shall
mail a copy to the Trustee and each Agent at the same time.
 
     All notices or communications shall be in writing.
 
     The Company's address is:
 
     -----------------------------------------
 
     -----------------------------------------
 
     -----------------------------------------
 
     -----------------------------------------
 
     The Trustee's address is:
 
     -----------------------------------------
 
     -----------------------------------------
 
     -----------------------------------------
 
     -----------------------------------------
 
SECTION 11.03  COMMUNICATION BY HOLDERS WITH OTHER HOLDERS.
 
     Securityholders may communicate pursuant to TIA sec. 312(b) with other
Securityholders with respect to their rights under this Indenture or the
Securities. The Company, the Trustee, the Registrar and anyone else shall have
the protection of TIA sec. 312(c).
 
SECTION 11.04  ACTION BY SECURITYHOLDERS.
 
     Whenever in this Indenture it is provided that the Holders of a specified
percentage in aggregate principal amount of the Securities may take any action
(including the making of any demand or request, the giving of any notice,
consent or waiver or the taking of any other action), the fact that at the time
of taking any such action the Holders of such specified percentage have joined
therein may be evidenced by (a) any instrument or any number of instruments of
similar tenor executed by Holders of Securities in person or by agent or proxy
appointed in writing, or (b) by the record of the Holders of Securities in favor
thereof, at any meeting of Holders duly called and held in accordance with the
provisions of Article 12, or (c) by a combination of such instrument or
instruments and any such record of such meeting of Holders, but in each case
only to the extent that the Holders of Securities shall not have revoked such
action, consent or vote pursuant to Section 9.04 and Section 11.06.
 
SECTION 11.05  PROOF OF EXECUTION OF INSTRUMENTS AND OF HOLDING OF SECURITIES.
 
     Proof of the execution of any instrument by a Holder of Securities or his
or her agent or proxy and proof of the holding by any Person of any of the
Securities shall be sufficient if made in the following manner:
 
          (1) The fact and date of the execution by any such Person of any
     instrument may be proved by the certificate of any notary public or other
     officer of any jurisdiction authorized to take acknowledgements of deeds to
     be recorded in such jurisdiction that the Person executing such instrument
     acknowledged to him or her the execution thereof, or by an affidavit of a
     witness to such execution sworn to before any such notary or other such
     officer. Such certificate or affidavit shall also constitute sufficient
     proof of the authority of the Person executing any instrument in cases
     where Securities are not held by Persons in their individual capacities.
 
          (2) The fact and date of execution of any such instrument may also be
     proved in any other manner which the Trustee deems sufficient.
 
          (3) The ownership of Securities shall be proved by the register of
     such Security or by a certificate of the Registrar thereof.
 
          (4) The Trustee shall not be bound to recognize any Person as a
     Securityholder unless his or her title to any Security is proved in the
     manner provided in this Article 11.
 
     The Trustee may require such additional proof of any matter referred to in
this Section 11.05 as it shall deem necessary.
 
                                      M-27
<PAGE>   295
 
SECTION 11.06  REVOCATION OF CONSENTS; FUTURE HOLDERS BOUND.
 
     Subject to Section 9.04, at any time prior to (but not after) the
evidencing to the Trustee, as provided in Section 11.04, of the taking of any
action by the Holders of the required percentage of the aggregate principal
amount of the Securities specified in this Indenture in connection with such
action, any Holder of a Security which is shown by the evidence to be included
in the Securities the Holders of which have consented to such action may, by
filing written notice with the Trustee at its principal office and upon proof of
holding as provided in Section 11.05, revoke such action so far as concerns such
Security. Except as aforesaid, any such action taken by the Holder of any
Security shall be conclusive and binding upon such Holder and upon all future
holders and owners of such Security and of any Security issued in exchange or
substitution therefor, irrespective of whether or not any notation in regard
thereto is made upon such Security. Any action taken by the Holders of the
required percentage of the aggregate principal amount of the Securities
specified in this Indenture in connection with such action shall be conclusive
and binding upon the Company, the Trustee and the holders of all the Securities.
 
SECTION 11.07  RULES BY TRUSTEE AND AGENTS.
 
     The Trustee may make reasonable rules for action by or at a meeting of
Securityholders. The Registrar or Paying Agent may make reasonable rules and set
reasonable requirements for their respective functions.
 
SECTION 11.08  CERTIFICATE AND OPINION AS TO CONDITIONS PRECEDENT.
 
     Upon any request or application by the Company to the Trustee to take any
action under this Indenture the Company shall furnish to the Trustee:
 
          (1) an Officer's Certificate stating that, in the opinion of the
     signer, all conditions precedent, if any, provided for in this Indenture
     relating to the proposed action have been complied with; and
 
          (2) an Opinion of Counsel stating that, in the opinion of such
     counsel, all such conditions precedent have been complied with.
 
     Each signer of an Officer's Certificate or an Opinion of Counsel may (if so
stated) rely upon an Opinion of Counsel as to legal matters and an Officer's
Certificate as to factual matters if such signer reasonably and in good faith
believes in the accuracy of the document relied upon.
 
SECTION 11.09  STATEMENTS REQUIRED IN CERTIFICATE OR OPINION.
 
     Each certificate or opinion with respect to compliance with a condition or
covenant provided for in this Indenture shall include:
 
          (1) a statement that the Person making such certificate or opinion has
     read such covenant or condition;
 
          (2) a brief statement as to the nature and scope of the examination or
     investigation upon which the statements or opinions contained in such
     certificate or opinion are based;
 
          (3) a statement that, in the opinion of such Person, he or she has
     made such examination or investigation as is necessary to enable such
     Person to express an informed opinion as to whether or not such covenant or
     condition has been complied with; and
 
          (4) a statement as to whether or not, in the opinion of such Person,
     such condition or covenant has been complied with.
 
SECTION 11.10  LEGAL HOLIDAYS.
 
     A "Legal Holiday" is a Saturday, a Sunday or a day on which banking
institutions are not required to be open in The City of New York, in the State
of New York or in the city in which the Trustee or any Paying Agent under this
Indenture administers its corporate trust business. If a payment date is a Legal
Holiday at a
 
                                      M-28
<PAGE>   296
 
place of payment, payment may be made at that place on the next succeeding day
that is not a Legal Holiday, and no interest shall accrue on that payment for
the intervening period.
 
     A "Business Day" is a day other than a Legal Holiday.
 
SECTION 11.11  NO RECOURSE AGAINST OTHERS.
 
     All liability of any director, officer, employee or stockholder, as such,
of the Company with respect to the Securities is waived and released.
 
SECTION 11.12  TABLE OF CONTENTS, HEADINGS, ETC.
 
     The Table of Contents, Cross-Reference Table and headings of the Articles
and Sections of this Indenture have been inserted for convenience of reference
only, are not to be considered a part hereof, and shall in no way modify or
restrict any of the terms or provisions hereof.
 
SECTION 11.13  DUPLICATE ORIGINALS.
 
     The parties may sign any number of copies of this Indenture. Each signed
copy shall be an original, but all of them together represent the same
agreement.
 
SECTION 11.14  GOVERNING LAW.
 
     The laws of the State of New York, without regard to principles of
conflicts of law, shall govern this Indenture and the Securities.
 
SECTION 11.15  NO ADVERSE INTERPRETATION OF OTHER AGREEMENTS.
 
     This Indenture may not be used to interpret another indenture, loan or debt
agreement of the Company or a Subsidiary. Any such indenture, loan or debt
agreement may not be used to interpret this Indenture.
 
SECTION 11.16  SUCCESSORS.
 
     All agreements of the Company in this Indenture and the Securities shall
bind its successors. All agreements of the Trustee in this Indenture shall bind
its successors.
 
SECTION 11.17  SEPARABILITY.
 
     In case any provision in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby
and a Holder shall have no claim therefor against any party hereto.
 
                                  ARTICLE 12.
 
                       MEETINGS OF HOLDERS OF SECURITIES
 
SECTION 12.01  PURPOSES OF MEETINGS.
 
     A meeting of Holders of Securities may be called at any time and from time
to time pursuant to the provisions of this Article 12 for any of the following
purposes:
 
          (a) to give any notice to the Company or to the Trustee, or to give
     any direction to the Trustee, or to waive any non-performance hereunder,
     and its consequences, or to take any other action authorized to be taken by
     Holders of Securities pursuant to any of the provisions of this Indenture;
 
          (b) to remove the Trustee and appoint a successor trustee pursuant to
     the provisions of Section 7.08;
 
                                      M-29
<PAGE>   297
 
          (c) to consent to the execution of an indenture or indentures
     supplemental hereto pursuant to the provisions of Article 9;
 
          (d) to take any other action authorized to be taken by or on behalf of
     the Holders of any specified aggregate principal amount of the Securities
     under any other provision of this Indenture or under applicable law.
 
SECTION 12.02  CALL OF MEETINGS BY TRUSTEE.
 
     The Trustee may at any time call a meeting of Holders of Securities to take
any action specified in Section 12.01, to be held at such time and at such place
in the State of New York, as the Trustee shall determine. Notice of each meeting
of the Holders of Securities, setting forth the time and the place of such
meeting and, in general terms, the action proposed to be taken at such meeting,
shall be mailed by the Trustee to the Holders of the Securities, not less than
20 nor more than 60 days prior to the date fixed for the meeting, at their last
addresses as they shall appear on the register of the Securities.
 
SECTION 12.03  CALL OF MEETINGS BY COMPANY OR SECURITY HOLDERS.
 
     If at any time the Company, pursuant to a resolution of its Board of
Directors, or the holders of at least twenty percent in aggregate principal
amount of the Securities then outstanding, shall have requested the Trustee to
call a meeting of Holders of Securities to take any action authorized in Section
12.01, by written request setting forth in reasonable detail the action proposed
to be taken at the meeting, and the Trustee shall not have mailed notice of such
meeting within twenty days after receipt of such request, then the Company or
the Holders of Securities in the amount above specified, as the case may be, may
determine the time and the place in the State of New York for such meeting, and
may call such meeting by mailing notice thereof as provided in Section 12.02.
 
SECTION 12.04  PERSONS ENTITLED TO VOTE AT MEETING.
 
     To be entitled to vote at any meeting of Holders of Securities, a Person
shall (a) be a Holder of Securities or (b) be a Person appointed by an
instrument in writing as proxy by a Holder of Securities. The only Persons who
shall be entitled to be present or speak at any meeting of the Holders of the
Securities shall be the Persons entitled to vote at such meeting and their
counsel and any representatives of the Company and its counsel.
 
SECTION 12.05  REGULATIONS FOR MEETING.
 
     Notwithstanding any other provisions of this Indenture, the Trustee may
make such reasonable regulations as it may deem advisable for any meeting of
Holders of the Securities in regard to the appointment of proxies, the proof of
the holding of Securities, the appointment and duties of inspectors of votes,
the submission and examination of proxies and other evidence of the right to
vote, and such other matters concerning the conduct of the meeting as it shall
think fit. Except as otherwise permitted or required by any such regulations,
the holding of Securities shall be proved in the manner specified in Section
11.05 and the appointment of any proxy shall be proved in the manner specified
in such Section 11.05 or by having the signature of the Person executing the
proxy witnessed or guaranteed by any bank, banker, trust company or New York
Stock Exchange, Inc. member firm satisfactory to the Trustee.
 
     The Trustee shall, by an instrument in writing, appoint a temporary
chairman of the meeting, unless the meeting shall have been called by the
Company or by Holders of the Securities as provided in Section 12.03, in which
case the Company or the Holders of the Securities calling the meeting, as the
case may be, shall in like manner appoint a temporary chairman, and a permanent
chairman and a permanent secretary of the meeting shall be elected by vote of
the Holders of a majority in principal amount of the Securities represented at
the meeting and entitled to vote.
 
     At any meeting of Holders of Securities, the presence of Persons holding or
representing Securities in an aggregate principal amount sufficient to take
action upon the business for the transaction of which such
 
                                      M-30
<PAGE>   298
 
meeting was called shall be necessary to constitute a quorum; but, if less than
a quorum be present, the Persons holding or representing a majority in aggregate
principal amount of the Securities represented at the meeting may adjourn such
meeting with the same effect, for all intents and purposes, as though a quorum
had been present.
 
                                      M-31
<PAGE>   299
 
                                   SIGNATURES
 
     IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be
duly executed, and their respective corporate seals to be hereunto affixed and
attested, all as of the day and year first above written.
 
                                          ROSEBUD HOLDINGS, INC.
 
                                          By:
                                          --------------------------------------
                                              Title:
 
SEAL
 
Attest:
 
- --------------------------------------
Title:
 
                                          --------------------------------- BANK
 
                                          By:
                                          --------------------------------------
                                              Title:
 
SEAL
 
Attest:
 
- --------------------------------------
Title:
<PAGE>   300
 
                                                                       EXHIBIT A
REGISTERED                      FACE OF SECURITY                      REGISTERED
NUMBER                                                                   DOLLARS
 
                             ROSEBUD HOLDINGS, INC.
 
                        10% ASSET PROCEEDS NOTE DUE 1997
 
     ROSEBUD HOLDINGS, INC., a Delaware corporation (herein called the
"Company"), for value received, hereby promises to pay to             or
registered assigns, the principal sum of           Dollars on             ,
1997, and to pay interest thereon as provided on the reverse hereof, until the
principal hereof is paid or duly provided for.
 
     Interest Payment Dates:             and             of each year,
commencing             , 1994
 
     Record Dates:             and             of each year, commencing
            , 1994
 
     The provisions on the back of this certificate are incorporated as if set
forth on the face hereof.
 
     IN WITNESS WHEREOF, ROSEBUD HOLDINGS, INC. has caused this instrument to be
duly signed under its corporate seal.
 
SEAL                                      ROSEBUD HOLDINGS, INC.
 
                                             By:
                                                -----------------------------
                                                 Title:
 
                                             By:
                                                -----------------------------
                                                 Title:
 
TRUSTEE'S CERTIFICATE OF AUTHENTICATION
 
This is one of the Securities referred
to in the within-mentioned Indenture.
 
- -------------- BANK
                       as Trustee
 
By:
   ---------------------------------
               Signatory
 
Dated:
      ------------------------------

                                      MA-1
<PAGE>   301
 
                              REVERSE OF SECURITY
 
                             ROSEBUD HOLDINGS, INC.
 
                        10% ASSET PROCEEDS NOTE DUE 1997
 
     1.  Interest.  ROSEBUD HOLDINGS, INC., a Delaware corporation (the
"Company"), promises to pay interest on the principal amount of this Security at
the rate per annum shown above. The Company will pay interest semi-annually in
arrears on           and           of each year, commencing           , 1994.
Interest on the Securities will accrue from the most recent date to which
interest has been paid (or, if no interest has been paid, from the Effective
Date, as defined in the below-mentioned Indenture). Interest on overdue
principal shall accrue at the rate per annum of 11% from the due date until paid
in full. Interest shall be computed on the basis of a 360-day year of 12 30-day
months.
 
     2.  Method of Payment; Deemed Repayment; Deferral of Maturity Date.
 
     (a) The Company will pay interest on the Securities (except defaulted
interest) to the persons who are registered Holders of Securities at the close
of business on the record date set forth on the face of this Security next
preceding the applicable interest payment date. Holders must surrender
Securities to a Paying Agent to collect principal payments. The Company will pay
principal and interest in money of the United States that at the time of payment
is legal tender for payment of public and private debts. However, the Company
may pay principal and interest by check payable in such money. It may mail an
interest check to a Holder's registered address. At the election of Company,
interest may be paid, in whole or in part, on any interest payment date prior to
the Maturity Date in additional Securities of like tenor with this Note in a
principal amount equal to such interest payment amount or part thereof.
 
     (b) If the Guarantor is required to make any payment of "Guarantor
Obligations", as defined in the Guarantee Agreement, and actually makes such
payment, the Securities shall thereupon immediately (and without the need for
any notice or action on the part of any Person) be deemed to have been repaid in
an amount equal to all amounts of "Guarantor Obligations", as defined in the
Guarantee Agreement, paid under the Guarantee Agreement and the outstanding
amount thereof shall be accordingly reduced. In computing any such deemed
repayment, each Payment Note issued by the Guarantor shall be deemed to have a
value equal to the principal amount thereof. Such reduction shall be made
proportionately among all Securities based on the principal amounts outstanding
of such Securities immediately prior to such deemed repayment. Upon surrender of
a Security that has been deemed to have been repaid in part, the Trustee shall
authenticate for the Holder a new Security equal in principal amount to the
portion of the Security remaining after such deemed repayment.
 
     The Trustee may, with the concurrence of Holders owning an aggregate of
     % of the principal amount of the outstanding Securities, elect to defer the
maturity dates under the Guarantee Agreement as contemplated in Section 2
thereof. Upon the delivery of a Deferred Notice by the Trustee so deferring such
maturity date, the Maturity Date hereunder shall be automatically deferred for
one year from the date of the original Maturity Date hereunder and any Default
or Event of Default hereunder arising as a result of any nonpayment on the
Maturity Date in effect prior to such deferral shall be automatically deemed
waived without any further action or notice by any Person.
 
     3.  Paying Agent and Registrar.  Initially,           Bank (the "Trustee")
will act as Paying Agent and Registrar. The Company may change any Paying Agent,
Registrar or co-registrar without notice. The Company may act in any such
capacity.
 
     4.  Indenture.  The Company has issued the Securities under an Indenture
dated as of           (the "Indenture") between the Company and the Trustee. The
terms of the Securities include those stated in the Indenture and those made
part of the Indenture by reference to the Trust Indenture Act of 1939 (15 U.S.
Code sec.sec. 77aaa = 77bbbb) (the "Act") as in effect on the date of the
Indenture. The Securities are subject to all such terms, and Securityholders are
referred to the Indenture and the Act for a statement of such terms. The
Securities are secured obligations of the Company limited to up to $
aggregate principal amount
 
                                      MA-2
<PAGE>   302
 
(except for Securities issued in substitution for destroyed, mutilated, lost or
stolen Securities). Terms used herein which are defined in the Indenture have
the meanings assigned to them in the Indenture.
 
     5.  Optional Redemption.  The Securities may be redeemed at the option of
the Company in whole at any time or in part from time to time at the principal
amount thereof (the "Redemption Price"), plus accrued and unpaid interest to the
redemption date. The Securities may also be redeemed or prepaid by purchase by
the Company on the open market from time to time without penalty or premium.
 
     6.  Mandatory Redemption.  Within 120 days after the consummation of a Sale
of Assets (as defined in the Indenture), the Company shall redeem that principal
amount of Securities such that the aggregate Redemption Price, plus accrued and
unpaid interest to the redemption date, of such Securities equals (i) 100% of
the Net Proceeds (as defined in the Indenture) from such Sale of Assets less
(ii) such reserves as are necessary to provide the Company with $5 million for
working capital purposes. With the approval of the Board of Directors, the
Company may before or after the Sale of Assets, in lieu of making the
redemptions provided for in this Section 6, in whole or in part, effect open
market purchases of Securities (with any Securities so purchased to be delivered
to the Trustee for cancellation) in a principal amount equal to the principal
amount of Securities which could have been redeemed hereunder with such amount
of Net Proceeds, provided that such Securities have not been previously credited
against redemptions or purchases upon a Sale of Assets.
 
     7.  Security.  Securityholders are granted a first priority interest in the
Pledged Collateral, subject to senior liens on           pursuant to the
Collateral Agency Agreement, as more fully set forth in the Indenture. Each
Securityholder, by accepting a Security, agrees to all of the terms and
provisions of the Collateral Agency Agreement and the Guarantee Agreement as the
same may be amended from time to time.
 
     8.  Denominations, Transfer, Exchange.  The Securities are in registered
form without coupons in denominations of $1,000 and whole multiples of $1,000.
The transfer of Securities may be registered and Securities may be exchanged as
provided in the Indenture. The Registrar may require a Holder, among other
things, to furnish appropriate endorsements and transfer documents. No service
charge shall be made for any such registration or transfer or exchange, but the
Company may require payment of a sum sufficient to cover any tax or other
governmental charge payable in connection therewith. The Registrar need not
exchange or register the transfer of any Security selected for redemption in
whole or in part (except the unredeemed portion of securities being redeemed in
part). Also, it need not exchange or register the transfer of any Securities for
a period of 15 days before a selection of Securities to be redeemed.
 
     9.  Persons Deemed Owners.  The registered Holder of any of the Securities
may be treated as its owner for all purposes.
 
     10.  Merger or Consolidation.  The Company may not consolidate or merge
with or into, or sell, assign, transfer or lease all or substantially all of its
assets to another person unless: the person is an entity organized and existing
under the laws of the United States, any state thereof or the District of
Columbia; and such entity assumes by supplemental indenture all the obligations
of the Company under the Securities and the Indenture.
 
     11.  Amendments and Waivers.  Subject to certain exceptions, the Indenture
or the Securities may be amended with the consent of the Holders of at least
66 2/3% of the principal amount of the Securities outstanding, and certain
existing defaults may be waived with the consent of the Holders of 66 2/3% of
the principal amount of the Securities. Without the consent of any
Securityholder, the Indenture or the Securities may be amended to cure any
ambiguity, omission, defect or inconsistency, to provide for uncertificated
Securities in addition to certificated Securities, to comply with Section 5.01
of the Indenture or to make any change that does not adversely affect the right
of any Securityholder.
 
     12.  Defaults and Remedies.  An Event of Default is: default in the payment
of interest on any Security when the same becomes due and payable, whether at
maturity, in connection with any redemption, by acceleration or otherwise, which
default continues for a period of 30 days; default in the payment of the
principal of any Security when the same becomes due and payable, whether at
maturity, in connection with any redemption, by acceleration or otherwise, which
failure continues for a period of 30 days after either notice shall have been
given to the Company or the date on which the Company had Actual Knowledge of
such
 
                                      MA-3
<PAGE>   303
 
failure; failure to observe or perform in any material respect any of the
Company's other covenants or agreements in the Securities, the Indenture or the
Collateral Agency Agreement, which continues for a period of 30 days after
either notice shall have been given to the Company or the date on which the
Company had Actual Knowledge of such failure; failure by the Company or any of
its Subsidiaries to pay when due any principal or interest on any Indebtedness
with an aggregate outstanding principal amount in excess of $2 million, which
default continues for the greater of any period of grace applicable thereto or
60 days from the date of such default; a default or event of default, as defined
in one or more indentures, agreements or other instruments evidencing or under
which the Company or any of its Subsidiaries individually or collectively have,
outstanding at least $2 million aggregate principal amount of Indebtedness shall
happen and such Indebtedness shall have been accelerated so that it is due and
payable prior to the date on which it would otherwise have become due and
payable, and such acceleration shall not be rescinded or annulled within 60 days
after either notice shall have been given to the Company on the date on which
the Company had Actual Knowledge of such acceleration; entry of one or more
final judgments against the Company or any of its Subsidiaries for payments of
money which in the aggregate exceed $2 million, by a court of competent
jurisdiction and such judgments are not rescinded, annulled, stayed or
discharged within 90 days; the Company and its Subsidiaries, taken as a whole,
becomes insolvent; the commencement of a voluntary case under the Federal
Bankruptcy law; the occurrence of certain other events under a Bankruptcy Law,
including but not limited to the entry of a judgment for relief in respect of
the Company or any of its material Subsidiaries by a court of competent
jurisdiction which remains unstayed and in effect for 60 days.
 
     13. Trustee Dealings with Company.                 Bank, the Trustee under
the Indenture, or any banking institution serving as successor Trustee
thereunder, in its individual or any other capacity, may make loans to, accept
deposits from, and perform services for the Company or its Affiliates, and may
otherwise deal with the Company or its Affiliates, as if it were not Trustee.
 
     14. No Recourse Against Others.  No director, officer, employee, or
stockholder, as such, of the Company shall have any liability for any
obligations of the Company under the Securities or the Indenture or for any
claim based on, in respect of or by reason of such obligations or their
creation. Each Securityholder by accepting a Security waives and releases all
such liability. The waiver and release are part of the consideration for the
issue of the Securities.
 
     15. Authentication.  This Security shall not be valid until authenticated
by the manual signature of the Trustee or an authenticating agent.
 
     16. Abbreviations.  Customary abbreviations may be used in the name of a
Securityholder or an assignee, such as: TEN COM (= tenants in common), TEN ENT
(= tenants by the entireties), JT TEN (= joint tenants with right of
survivorship and not as tenants in common), CUST (= Custodian), and U/G/M/A (=
Uniform Gifts to Minors Act).
 
     THE COMPANY WILL FURNISH TO ANY SECURITYHOLDER UPON WRITTEN REQUEST AND
WITHOUT CHARGE A COPY OF THE INDENTURE. REQUESTS MAY BE MADE TO: ROSEBUD
HOLDINGS, INC.,                         .
 
                                      MA-4
<PAGE>   304
 
                                ASSIGNMENT FORM
 
To assign this Security, fill in the form below:
 
I or we assign and transfer this Security to:
 
- ---------------------------------------------

- ---------------------------------------------

- ---------------------------------------------
(Print or type assignee's name, address
             and zip code)
 
- ---------------------------------------------

- ---------------------------------------------
(Insert Assignee's Soc. Sec. or Tax I.D.
                  No.)
 
and irrevocably appoint                                                    agent
to transfer this Security on the books of the Company. The agent may substitute
another to act for him or her.
 
..............................................................................
 
<TABLE>
<S>                                   <C>            <C>
Date: ----------------------          Signature(s):  ----------------------------------------------

                                                     ----------------------------------------------
                                                     (Sign exactly as your name(s) appear on the
                                                     other
                                                     side of this Security)
Signature(s) guaranteed by:
                                      -------------------------------------------------------------
                                      (All signatures must be guaranteed by a member of a national
                                      securities exchange or of the National Association of
                                      Securities Dealers, Inc. or by a commercial bank or trust
                                      company located in the United States)
</TABLE>
 
                                      MA-5
<PAGE>   305
 
                                   EXHIBIT N
<PAGE>   306
 
                                                                       EXHIBIT N
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                              GUARANTEE AGREEMENT
 
                                       BY
 
                           LONE STAR INDUSTRIES, INC.
 
                                  IN FAVOR OF
 
                                 EACH AND EVERY
 
                                    "HOLDER"
 
                                       OF
 
                       10% ASSET PROCEEDS NOTES DUE 1997
 
                                       OF
 
                             ROSEBUD HOLDINGS, INC.
 
                         ------------------------------
 
                      DATED AS OF                   , 1993
 
                         ------------------------------
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   307
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                          PAGE
                                                                                          ----
<C>   <S>                                                                                 <C>
  1.  Definitions.......................................................................   N-1
      Affiliate.........................................................................   N-1
      Asset Proceeds Notes..............................................................   N-1
      Bankruptcy Court..................................................................   N-1
      Business Day......................................................................   N-1
      Compounding Date..................................................................   N-1
      Covered Deficiency................................................................   N-1
      Debtors...........................................................................   N-2
      Event of Default..................................................................   N-2
      Guarantee.........................................................................   N-2
      Guarantor.........................................................................   N-2
      Guarantor Indenture...............................................................   N-2
      Guarantor Obligations.............................................................   N-2
      Holders...........................................................................   N-2
      Indenture.........................................................................   N-2
      Lien..............................................................................   N-2
      Maturity Date.....................................................................   N-2
      Obligor...........................................................................   N-2
      Officer...........................................................................   N-2
      Officer's Certificate.............................................................   N-2
      Opinion of Counsel................................................................   N-2
      Payment Notes.....................................................................   N-2
      Payment Notice....................................................................   N-2
      Person............................................................................   N-3
      Plan..............................................................................   N-3
      Pledge Agreement..................................................................   N-3
      Proscribed Distribution...........................................................   N-3
      Restricted Subsidiary.............................................................   N-3
      Senior Notes......................................................................   N-3
      Subsidiary........................................................................   N-3
      Trustee...........................................................................   N-3
  2.  Guarantor Obligations; Extension Notices; Payment and Deemed Repayment............   N-4
  3.  Nature of Guarantee...............................................................   N-4
  4.  Covenants of Guarantor............................................................   N-6
  5.  Continued Effectiveness of this Guarantee.........................................   N-6
  6.  Events of Default.................................................................   N-8
  7.  Pledge Agreement..................................................................   N-8
  8.  Notices...........................................................................   N-8
  9.  Binding Agreement; Assignment; Obligations Several................................   N-8
</TABLE>
 
                                        i
<PAGE>   308
 
<TABLE>
<CAPTION>
                                                                                          PAGE
                                                                                          ----
<C>   <S>                                                                                 <C>
 10.  Governing Law.....................................................................   N-8
 11.  Effectiveness; Termination........................................................   N-9
 12.  Amendments, Supplements and Waivers...............................................   N-9
 13.  Inconsistent Provisions...........................................................   N-9
 14.  Severability......................................................................   N-9
 15.  Headings..........................................................................   N-9
 16.  Counterparts......................................................................   N-9
</TABLE>
 
                                       ii
<PAGE>   309
 
                              GUARANTEE AGREEMENT
 
     This Guarantee, dated as of             , 1993, is made by LONE STAR
INDUSTRIES, INC., a Delaware corporation (the "Guarantor"), in favor of each and
every "Holder" of "Asset Proceeds Notes," as such terms (and all others used
herein without definition) are defined in accordance with Section 1 below.
 
                              W I T N E S S E T H:
 
     WHEREAS, on December 10, 1990, Lone Star Industries, Inc., a Delaware
corporation and predecessor-in-interest of the Guarantor, and certain of its
affiliates (collectively, the "Debtors"), filed a voluntary petition for relief
under Chapter 11 of the U.S. Bankruptcy Code with the United States Bankruptcy
Court for the Southern District of New York (the "Bankruptcy Court");
 
     WHEREAS, on June 28, 1993, the Debtors filed an Amended Consolidated Plan
of Reorganization (such plan, as it may be amended from time to time, the
"Plan") in the bankruptcy proceeding describing the means by which, and the
extent to which, claims against the Debtors in such bankruptcy proceeding will
be satisfied;
 
     WHEREAS, on             , 1993, an order was entered by the Bankruptcy
Court confirming the Plan; and
 
     WHEREAS, it is a term of the Plan that the Guarantor shall execute and
deliver this Guarantee which is the "Reorganized Lone Star Guarantee" defined in
the Plan;
 
     NOW, THEREFORE, in consideration of the foregoing, the sufficiency of which
consideration is hereby acknowledged by the Guarantor, the Guarantor does hereby
covenant and agree with the Trustee for the ratable benefit of the Holders as
follows:
 
     1.  Definitions.  The following terms shall have the meanings set forth
after each:
 
     "Affiliate", as to any Person, means any other Person directly or
indirectly controlling or controlled by or under common control with that Person
including any Subsidiary of that Person. For this purpose, "control" means
possession, directly or indirectly, of the power to direct or cause the
direction of the management or policies of a Person, whether through the
ownership of voting securities, by contract or otherwise. Without limiting the
foregoing, the Guarantor is an Affiliate of the Obligor for purposes hereof.
 
     "Asset Proceeds Notes" shall mean the notes of the Obligor, in the
aggregate initial principal amount of $138,118,000, issued from time to time by
the Obligor pursuant to the Indenture including, without limitation, all such
notes issued in respect of interest on other Asset Proceeds Notes.
 
     "Bankruptcy Court" shall have the meaning ascribed thereto in the recitals.
 
     "Business Day" shall mean a day other than a Saturday, Sunday or day on
which banking institutions are not required to be open in The City of New York,
in the State of New York or in the city in which the Trustee administers its
corporate trust business.
 
     "Compounding Date" shall mean each             and             commencing
on the first such date following the date hereof.
 
     "Covered Deficiency" shall mean the excess, if any, of (a) the sum of (i)
$88,110,000 plus (ii) interest accrued on such amount (reduced from time to time
by all payments (principal and interest) made by the Obligor under the Asset
Proceeds Notes and by the amount (principal and accrued interest) of any Asset
Proceeds Notes redeemed or otherwise purchased (including, without limitation,
by purchase on the open market) by the Obligor or its Affiliates) from the date
hereof to the date in respect of which the calculation of Covered Deficiency is
to be made, at the rate of 10% per annum, compounded on each Compounding Date
(computed on the basis of a 360-day year of 12 30-day months), over (b) the sum
of all amounts paid (principal and interest) by the Obligor under the Asset
Proceeds Notes (other than those held by the Obligor or its Affiliates) and the
amount (principal and accrued interest) of Asset Proceeds Notes redeemed or
otherwise purchased (including, without limitation, by purchase on the open
market) by the Obligor or its
 
                                       N-1
<PAGE>   310
 
Affiliates (other than from the Obligor or its Affiliates) on or prior to the
date in respect of which the calculation of Covered Deficiency is to be made;
provided, however, in no event shall the Covered Deficiency exceed $20,000,000
plus interest accrued thereon from the date hereof to the date in respect of
which the calculation of Covered Deficiency is to be made, at the rate of 10%
per annum, compounded on each Compounding Date (computed on the basis of a
360-day year of 12 30-day months).
 
     "Debtors" shall have the meaning ascribed thereto in the recitals.
 
     "Default" means any event which is, or after notice or passage of time or
both would be, an Event of Default.
 
     "Event of Default" shall have the meaning ascribed thereto in Section 6
hereof.
 
     "Exchange Act" shall have the meaning ascribed thereto in Section 4(g)
hereof.
 
     "Guarantee" means this Guarantee, and any extensions, modifications,
renewals, restatements, reaffirmations, supplements or amendments hereof.
 
     "Guarantor" shall have the meaning ascribed thereto in the recitals.
 
     "Guarantor Indenture" shall mean the indenture of even date herewith
between the Guarantor and           , as trustee, which indenture relates to the
Guarantor's 10% Senior Notes Due 2003 in the initial principal amount of
$75,000,000.
 
     "Guarantor Obligations". Guarantor Obligations shall mean the obligations
of the Guarantor to pay to the Trustee any amounts which are due and unpaid by
the Obligor under the terms of the Asset Proceeds Notes (including, without
limitation, Section 2.13 thereof) on the first business day after the Maturity
Date; provided, however, in no event shall the Guarantor Obligations exceed the
amount of the Covered Deficiency.
 
     "Holders" shall mean each and every holder of an Asset Proceeds Note.
 
     "Indenture" shall mean the Indenture of even date herewith between the
Obligor and the Trustee, which Indenture relates to the Asset Proceeds Notes.
 
     "Lien" means, with respect to any asset, any mortgage, lien, pledge,
charge, security interest or similar encumbrance in respect of such asset,
whether or not filed, recorded or otherwise perfected under applicable law
(including any conditional sale or other title retention agreement, any
capitalized lease in the nature thereof, and any filing of or agreement to give
any financing statement under the New York Uniform Commercial Code or equivalent
statutes of any jurisdiction other than an information filing).
 
     "Maturity Date" shall have the meaning ascribed thereto in the Indenture,
but may be deferred in yearly increments up to three years in accordance with
Section 2(b) hereof.
 
     "Obligor" shall mean Rosebud Holdings, Inc., a Delaware corporation and
wholly-owned subsidiary of the Guarantor.
 
     "Officer" means the Chairman of the Board, the President, any Senior
Vice-President, Executive Vice-President or any other Vice-President, the
Treasurer or the Secretary of the Guarantor.
 
     "Officer's Certificate" means a certificate signed by an Officer of the
Guarantor.
 
     "Opinion of Counsel" means a written opinion from legal counsel, who may be
an employee of or counsel for the Guarantor or other counsel reasonably
acceptable to the Trustee.
 
     "Payment Notes" shall mean unsecured promissory notes of the Guarantor
which shall mature on July 31 of the fifth calendar year after their date of
issuance and bear interest at a rate equal to 300 basis points above the current
yield for five-year U.S. Treasury Bond obligations as of the date of the
issuance of such Payment Notes. If required by the Trust Indenture Act of 1939,
the Payment Notes will be issued in accordance with such act including, without
limitation, being issued under an indenture duly qualified under such act. The
Payment Notes shall be subordinate to the Senior Notes.
 
     "Payment Notice" shall have the meaning ascribed thereto in Section 2
hereof.
 
                                       N-2
<PAGE>   311
 
     "Person" means any individual, corporation, partnership, joint venture,
association, joint-stock company, trust, unincorporated organization, or
government or any agency or political subdivision thereof.
 
     "Plan" shall have the meaning ascribed thereto in the recitals.
 
     "Pledge Agreement" shall mean the pledge agreement of even date herewith
pursuant to which the Guarantor grants a pledge of the common stock of the
Obligor to the Trustee to secure the Guarantor's obligations hereunder (which
shall not, for any purposes hereunder or under the Pledge Agreement, be deemed
to include any obligations under the Payment Notes).
 
     "Proscribed Distribution" shall have the meaning ascribed thereto in
Section 4(a) hereof.
 
     "Restricted Subsidiary" means: (A) any Subsidiary other than: (i) a
subsidiary substantially all of the physical properties of which are located,
and substantially all of the business of which is carried on, outside the limits
of the United States of America (including Alaska and Hawaii) or which is
organized under the laws of any jurisdiction other than the United States of
America, the District of Columbia, the Commonwealth of Puerto Rico, the States
or the possessions of the United States; (ii) a Subsidiary the primary business
of which consists of purchasing accounts receivable and/or making loans secured
by accounts receivable and/or making investments in or in the development of
real estate (other than for sale or lease to the Guarantor or its Restricted
Subsidiaries) or providing services directly related thereto, or which is
otherwise primarily engaged in the finance business or in the real estate
business; or (iii) the Obligor and its Subsidiaries; and (B) any Subsidiary
specified in clause A(i) or (ii) above which the Guarantor, by resolution of its
Board of Directors, shall have designated as a Restricted Subsidiary.
 
     "SEC" shall have the meaning ascribed thereto in Section 4(g) hereof.
 
     "Senior Notes" shall mean notes issued by the Guarantor in the aggregate
principal amount of $75,000,000 pursuant to the Guarantor Indenture.
 
     "Subsidiary" shall mean any Person more than 50% of the outstanding voting
stock of which is owned, directly or indirectly, by the Guarantor or by one or
more other Subsidiaries. For the purposes of this definition, "voting stock"
means stock which ordinarily has voting power for the election of directors,
whether at all times or only so long as no senior class of stock has such voting
power by reason of any contingency.
 
     "Trustee" shall mean           , in its capacity as trustee under the
Indenture.
 
     2.  Guarantor Obligations; Extension Notices; Payment and Deemed Repayment.
 
          (a) The Guarantor hereby guarantees the payment of the Guarantor
     Obligations (and only the Guarantor Obligations). Subject to Section 6
     hereof, the Guarantor Obligations shall become due and payable by the
     Guarantor hereunder, if at all, upon notice (a "Payment Notice") from the
     Trustee delivered not earlier than the first Business Day after the
     Maturity Date, and shall not be accelerated as a result of any acceleration
     of the Asset Proceeds Notes.
 
          (b) In the event that any amounts remain outstanding under the Asset
     Proceeds Notes on the Maturity Date, the Trustee shall within sixty days
     after the Maturity Date either (i) deliver a Payment Notice in accordance
     with Section 2(a) or (ii) with the concurrence of Holders owning an
     aggregate of      % of the principal amount of the outstanding Asset
     Proceeds Notes, elect to defer the Maturity Date for a period of one year.
     If the Trustee defers the Maturity Date, (x) no Payment Notice shall be
     made unless and until amounts remain outstanding under the Asset Proceeds
     Notes on the first Business Day following the Maturity Date as so deferred
     and (y) the maturity date of the Asset Proceeds Notes will be automatically
     deferred one year and all "Defaults" or "Events of Default" thereunder
     resulting from the nonpayment thereof prior to such deferral shall
     automatically be deemed cured and waived by all Holders and the Trustee.
     The Maturity Date may be deferred in yearly increments under this Section
     2(b) up to three times (i.e. with a final Maturity Date not later than July
     31, 2000).
 
          (c) If any Guarantor Obligations become due and payable, the Guarantor
     shall promptly pay such amounts to the Trustee upon the Guarantor's receipt
     of a Payment Notice. Such payment may, in the discretion of the Guarantor,
     be made (i) in cash or by check; (ii) by issuance of Payment Notes; or
 
                                       N-3
<PAGE>   312
 
     (iii) by a combination of the types of payment described in clauses (i) and
     (ii). Upon payment of the Guarantor Obligations in accordance with this
     Section 2, (x) all obligations under this Guarantee and the Pledge
     Agreement shall terminate in their entirety; and (y) the Asset Proceeds
     Notes shall irrevocably be deemed to be repaid in an amount equal to the
     amount of all amounts of Guarantor Obligations paid hereunder and the
     outstanding amount thereof shall be deemed accordingly reduced. In
     computing any such deemed repayment, each Payment Note issued by the
     Guarantor shall be deemed to have a value equal to the principal amount
     thereof.
 
     3.  Nature of Guarantee.  This Guarantee is unconditional, irrevocable and
continuing in nature. Subject to the notice provisions set forth in Section 2
hereof, this Guarantee is a guarantee of prompt and punctual payment and
performance, and is not merely a guarantee of collection.
 
     4.  Covenants of Guarantor.
 
          (a) The Guarantor shall not directly or indirectly demand, accept or
     receive payment of any monies whatsoever by the Obligor, whether by way of
     repayment of debt, dividend, distribution, salary, consulting fee or
     otherwise, if such payment would constitute a breach of Sections 4.08 or
     4.09 of the Indenture on the part of the Obligor (any such prohibited
     payment, a "Proscribed Distribution"). If, notwithstanding the provisions
     of this Guarantee, the Guarantor receives any Proscribed Distribution
     (including receipt in any bankruptcy or similar proceedings), the Guarantor
     shall hold such payment in trust for the Trustee and will promptly turn
     over such payment to the Trustee, in the form received, to be held by the
     Trustee in trust and applied to the Guarantor Obligations if appropriate in
     accordance with the terms of this Guarantee. In the event of (x) any
     insolvency, bankruptcy, receivership, custodianship, liquidation,
     reorganization, readjustment of debt, arrangement, composition, moratorium,
     assignment for the benefit of creditors, or other similar proceedings
     affecting the Obligor or its property or assets, or (y) any proceeding for
     voluntary liquidation, dissolution or other winding up or bankruptcy or
     other similar proceedings affecting the Obligor, then and in any such event
     the Asset Proceeds Notes shall first be (or, in accordance with the terms
     of the Indenture, be deemed to be) indefeasibly paid in full before any
     payment or distribution of any character, whether in cash, securities,
     obligations or other property, shall be made in respect of Proscribed
     Distributions.
 
          (b) Except as specified in Section 7 hereof the Guarantor shall not
     sell, transfer, assign, pledge, exchange or otherwise encumber or dispose
     of, or grant any option or warrant with respect to, or cause the Obligor to
     issue, or grant any option or warrant with respect to the issuance of, any
     capital stock of the Obligor.
 
          (c) The Guarantor shall not cause the Obligor to merge or consolidate
     with any other Person in violation of the Indenture. The Guarantor shall
     not consolidate or merge with or into, or sell, assign, transfer or lease
     all or substantially all of the assets of the Guarantor and its Restricted
     Subsidiaries, taken as a whole, to, any Person unless:
 
             (i) the Person formed by or surviving any such consolidation or
        merger (if other than the Guarantor), or to which such sale or
        conveyance shall have been made, is an entity organized and existing
        under the laws of the United States, any state thereof or the District
        of Columbia; and
 
             (ii) the Person formed by or surviving any such consolidation or
        merger (if other than the Guarantor), or to which such sale or
        conveyance shall have been made, assumes all the obligations of the
        Guarantor under the Guarantee.
 
          The Guarantor shall deliver to the Trustee prior to the consummation
     of the proposed transaction an Officer's Certificate to the foregoing
     effect and an Opinion of Counsel stating that the proposed transaction
     complies with this Section 4(c).
 
          (d) The Guarantor shall reimburse the Trustee for all payments made
     and expenses incurred by the Trustee, including fees, expenses and
     disbursements of attorneys acting for the Trustee in connection with the
     negotiation, execution and delivery of this Guarantee Agreement or the
     exercise or enforcement of any rights of the Trustee hereunder.
 
                                       N-4
<PAGE>   313
 
          (e) Except as contemplated in the second sentence of Section 4(c)
     above, the Guarantor shall do or cause to be done all things necessary to
     preserve and keep in full force and effect its corporate existence.
 
          (f) The Guarantor will pay or discharge or cause to be paid or
     discharged, before the same shall become delinquent (i) all taxes,
     assessments and governmental charges levied or imposed upon the Guarantor,
     and (ii) all lawful claims for labor, materials and supplies which, if
     unpaid, might by law become a material Lien upon the property of the
     Guarantor; provided, however, that the Guarantor shall not be required to
     pay or discharge or cause to be paid or discharged any such tax,
     assessment, charge or claim whose amount, applicability or validity is
     being contested in good faith by appropriate proceedings and for which it
     has set aside on its books such reserves as it deems adequate.
 
          (g) Within 15 days after the Guarantor files with the Securities and
     Exchange Commission (the "SEC") copies of its annual and quarterly reports
     and other information, documents and reports (or copies of such portions of
     any of the foregoing as the SEC may by rules and regulations prescribe)
     which it is required to file with the SEC pursuant to Section 13 or 15(d)
     of the Securities Exchange Act of 1934 (the "Exchange Act"), the Company
     shall deliver the same to the Trustee. If the Guarantor shall cease to be
     subject to the requirements of Section 13 or 15(d) of the Exchange Act, the
     Guarantor shall deliver to the Trustee, within 15 days after the date by
     which it would have been required to make such a filing with the SEC,
     audited annual financial statements prepared in accordance with generally
     accepted accounting principles and unaudited condensed quarterly financial
     statements, including any notes thereto, each comparable to that which the
     Guarantor would have been required to include in such annual reports,
     information, documents or other reports if the Guarantor were then subject
     to the requirements of Section 13 or 15(d) of the Exchange Act.
 
          (h) The Guarantor will not declare any dividends (other than dividends
     payable solely in capital stock of the Guarantor or dividends required
     under the terms of a preferred stock issued by a company which is at the
     time of such issuance or later becomes a Restricted Subsidiary) on any
     capital stock of the Guarantor or make any payment on account of the
     purchase, redemption or other retirement of any shares of such stock or
     make any distribution in respect thereof, either directly or indirectly,
     and the Guarantor will not itself, and will not permit any Restricted
     Subsidiary to, make any investment in any Subsidiaries which are not
     Restricted Subsidiaries, in each case to the extent such declaration,
     payment, redemption, retirement or investment would constitute a breach of
     Section 4.08 of the Guarantor Indenture.
 
          (i) The Guarantor will not, and will not permit any of its Restricted
     Subsidiaries to, engage in any material transaction with any of its
     Affiliates (other than the Guarantor, the Obligor or their Restricted
     Subsidiaries) unless (i) such transaction is in the ordinary course of
     business or (ii) the Board of Directors of the Guarantor in good faith
     determines that such transaction is in the best interest of the Guarantor.
     Nothing in this Section 4(i) shall prohibit any transactions pursuant to
     any agreement existing as of the Effective Date.
 
          (j) The Guarantor will not, and will not permit any of its Restricted
     Subsidiaries to, enter into any agreement or execute any instrument that by
     its terms expressly prohibits or otherwise would have the effect of
     prohibiting the Guarantor from making any payments pursuant to the terms of
     this Guarantee.
 
          (k) The Guarantor shall keep, or cause to be kept, true books and
     records and accounts in which entries will be made of all of the business
     transactions of the Guarantor and its Restricted Subsidiaries which shall
     be full and correct in all material respects, in accordance with sound
     business practices, and reflect in their respective financial statements
     adequate accruals and appropriate reserves, all in accordance with
     generally accepted accounting principles.
 
          (l) The Guarantor shall, and shall cause its Restricted Subsidiaries
     to, comply with all statutes, laws, ordinances, or governmental rules and
     regulations to which it is subject, noncompliance with which would
     materially adversely affect the prospects, earnings, properties, assets or
     condition, financial or otherwise, of the Guarantor and its Restricted
     Subsidiaries taken as a whole.
 
                                       N-5
<PAGE>   314
 
          (m) In the event that any Default under this Guarantee shall occur,
     the Guarantor will give prompt written notice of such Default to the
     Trustee, specifying the nature and status of such Default and the steps
     which the Guarantor or its Subsidiaries have taken or propose to take in
     order to cure such Default.
 
     5.  Continued Effectiveness of this Guarantee.  The Guarantor hereby
expressly agrees that its obligations hereunder shall be binding irrespective of
any event or circumstance (except any act, event or circumstance which would
constitute a discharge, release, defense, waiver or other satisfaction of or to
the Obligor's obligations other than by reason of the Obligor's future
bankruptcy, insolvency or inability to pay or perform its obligations) which
might otherwise constitute a legal or equitable discharge or defense of a
guarantor, indemnitor or surety under the laws of any jurisdiction, including,
without limitation, any failure of, or delay in, due and timely demand or
notice, and regardless of any change of circumstances, whether or not foreseen
or foreseeable, whether or not knowledge or notice thereof is imputable to the
Guarantor, and irrespective of any present or future law or order of any
jurisdiction (or any agency thereof) purporting to reduce, amend or otherwise
affect any obligation of the Guarantor under the terms hereof or to vary the
terms hereof or of the Asset Proceeds Notes or the Indenture or any other
instrument, writing or arrangement relating thereto and irrespective of any
other circumstance (subject to the exception stated above), whether or not any
of the foregoing might in any manner or to any extent vary the obligations of
the Guarantor under this Guarantee or otherwise constitute a legal or equitable
discharge or defense of a guarantor, indemnitor or surety.
 
     The Guarantor hereby consents that at any time and from time to time,
without notice to the Guarantor, the performance or observance by the Obligor of
any term or covenant of the Asset Proceeds Notes or the Indenture or any other
instrument pertaining thereto, or any other writing or arrangement relating to
the Asset Proceeds Notes or the Indenture may be waived, the time of performance
thereof extended, the time of any payment under the Asset Proceeds Notes
accelerated or extended, and any provisions of the Asset Proceeds Notes or the
Indenture amended, without affecting the liability of the Guarantor hereunder.
The Guarantor hereby waives presentment and protest of any Asset Proceeds Note
and waives all notices of every kind which may be required to be given by any
statute, regulation or rule of law in any jurisdiction. The Guarantor hereby
consents in all respects to the execution and delivery of the Asset Proceeds
Notes and the Indenture and to all of the terms thereof, and acknowledges
receipt of an executed counterpart of the Asset Proceeds Notes and the
Indenture.
 
     Anything herein to the contrary notwithstanding, the Guarantor shall have
no obligation hereunder with respect to any act, event or obligation, or at any
time, or under any circumstances, to the extent that any such obligation at such
time, under then existing circumstances, exceeds the then corresponding
obligation of the Obligor, if any; provided, that the foregoing shall not apply
if the Obligor's obligation is affected by reason of the Obligor's future
bankruptcy, insolvency or inability to pay or perform its obligations.
 
     6.  Events of Default.
 
     (a) An "Event of Default" occurs if:
 
          (1) the Guarantor defaults in the payment of Guarantor Obligations
     when the same becomes due and payable in accordance with Section 2 hereof,
     and such default continues for a period of 30 days;
 
          (2) the Guarantor fails to observe or perform in any material respect
     any of its other covenants or agreements in this Guarantee, which failure
     continues for a period of 30 days after the earlier of (i) the date on
     which written notice of such failure, requiring the Guarantor to remedy the
     same, shall have been given to the Guarantor by the Trustee, or to the
     Guarantor and the Trustee by the Holders of at least 25% in aggregate
     principal amount of the Asset Proceeds Notes at the time outstanding or
     (ii) the date on which the Guarantor had Actual Knowledge of such failure;
 
          (3) (a) the Guarantor fails to pay when due (whether at maturity, in
     connection with any mandatory amortization or redemption, by acceleration
     or otherwise) any principal or interest on any indebtedness with an
     aggregate outstanding principal amount in excess of $5 million, whether any
     such indebtedness is outstanding as of the date of this Guarantee or is
     hereafter outstanding, which default continues for the greater of any
     period of grace applicable thereto or 60 days from the date of such
 
                                       N-6
<PAGE>   315
 
     default, or (b) a default or event of default, as defined in one or more
     indentures, agreements or other instruments evidencing or under which the
     Guarantor has, as of the date of this Guarantee or hereafter, outstanding
     at least $5 million aggregate principal amount of indebtedness, shall
     happen and be continuing and such indebtedness shall have been accelerated
     so that it is due and payable prior to the date on which it would otherwise
     have become due and payable, and such acceleration shall not be rescinded
     or annulled within 60 days after the earlier of (i) the date on which
     written notice of such acceleration shall have been given to the Guarantor
     by the Trustee, or to the Guarantor and the Trustee by the Holders of at
     least 25% in aggregate principal amount of the Asset Proceeds Notes at the
     time outstanding or (ii) the date on which the Guarantor had Actual
     Knowledge of such acceleration; provided that if such default or event of
     default under such indenture or other instrument shall be remedied or cured
     by the Guarantor or waived by the holders of such indebtedness, then the
     Event of Default under this Guarantee by reason thereof shall be deemed
     likewise to have been thereupon remedied, cured or waived without further
     action upon the part of either the Trustee or any of the Holders of Asset
     Proceeds Notes;
 
          (4) one or more final judgments against the Guarantor for payments of
     money which in the aggregate exceed $5 million are entered by a court of
     competent jurisdiction and such judgments are not rescinded, annulled,
     stayed or discharged within 90 days;
 
          (5) the Guarantor and its Subsidiaries, taken as a whole, become
     insolvent;
 
          (6) the Guarantor pursuant to or within the meaning of any Bankruptcy
     Law:
 
             (a) commences a voluntary case,
 
             (b) consents to the entry of a judgment, decree or order for relief
        against it in an involuntary case or proceeding,
 
             (c) consents to the appointment of a Custodian of it or for all or
        substantially all of its property,
 
             (d) makes a general assignment for the benefit of its creditors, or
 
             (e) applies for, consents to or acquiesces in the appointment of,
        or taking possession by a Custodian;
 
          (7) a court of competent jurisdiction enters a judgment, decree or
     order for relief in respect of the Guarantor in an involuntary case or
     proceeding under any Bankruptcy Law which shall
 
             (a) approve as properly filed a petition seeking reorganization,
        arrangement, adjustment or composition;
 
             (b) appoint a Custodian for any part of its property; or
 
             (c) order the winding up or liquidation of its affairs; and such
        judgment, decree or order remains unstayed and in effect for a period of
        sixty (60) consecutive days; or
 
          (8) any bankruptcy or insolvency petition or application is filed, or
     any bankruptcy case or insolvency proceeding is commenced against, the
     Guarantor or any of its material Restricted Subsidiaries and such petition,
     application, case or proceeding is not dismissed or stayed within ninety
     (90) days.
 
     The term "Bankruptcy Law" means Title 11, U.S. Code or any similar Federal
or State law for the relief of debtors. The term "Custodian" means any receiver,
trustee, assignee, liquidator or similar official under any Bankruptcy Law. The
term "Actual Knowledge" means the actual knowledge of any executive officer of
the Guarantor; provided, however, that each executive officer of the Guarantor
shall be deemed to have actual knowledge of any fact that would have come to
such officer's attention if he or she had exercised reasonable care in
performing his or her duties, given the nature of his or her duties and the
Guarantor's business and organization.
 
          (b) If an Event of Default (other than an Event of Default specified
     in Section 6(a)(5), (6), (7) or (8) occurs and is continuing, the Trustee
     by notice to the Guarantor, or the Holders of at least 25% in
 
                                       N-7
<PAGE>   316
 
     principal amount of the Asset Proceeds Notes by notice to the Guarantor and
     the Trustee, may declare the Guarantor Obligations to be accelerated. If an
     Event of Default specified in Section 6(a)(5), (6), (7) or (8) occurs, all
     Guarantor Obligations shall ipso facto be accelerated without any
     declaration or other act on the part of the Trustee or any Holder. Upon any
     acceleration of the Guarantor Obligations (i) if the Event of Default is
     specified in Section 6(a)(1), any Guarantor Obligations shall be due and
     payable and (ii) otherwise, the Guarantor shall irrevocably deposit in
     trust with the Trustee immediately available funds or obligations of the
     United States of America sufficient to pay all Guarantor Obligations on the
     first Business Day after the Maturity Date then in effect. Such deposit
     shall be made under the terms of an irrevocable trust (in form and
     substance reasonably satisfactory to the Trustee), and this Guarantee and
     the Pledge Agreement shall thereupon terminate except for the Guarantor's
     obligations to pay any Guarantor Obligations to the extent provided in
     Section 2 hereof (which payment shall be made, to the extent possible, from
     such trust fund) and the Trustee's obligation to return to the Guarantor
     any amounts remaining in such trust fund after such payment. The Holders of
     at least 66 2/3% of the principal amount of the Asset Proceeds Notes may
     rescind an acceleration and its consequences by notice to the Trustee if
     the rescission would not conflict with any judgment or decree and if the
     outstanding Events of Default have been cured or waived, except for
     nonpayment of (or failure to deposit, as the case may be) Guarantor
     Obligations due solely as a result of such acceleration. No such rescission
     shall affect any subsequent Event of Default or impair any right or remedy
     with respect thereto.
 
     7.  Pledge Agreement.  To secure this Guarantee, the Guarantor is
simultaneously herewith executing and delivering the Pledge Agreement.
 
     8.  Notices.  Any notices or other communications required or permitted
hereunder shall be in writing, and shall be sufficiently given if made by hand
delivery, by telex, by telecopier or registered or certified mail, postage
prepaid, return receipt requested, addressed as follows:
 
     To the Guarantor:
 
          with a copy to:
 
     To the Trustee:
 
Any party hereto may by notice to each other party designate such additional or
different addresses as shall be furnished in writing by such party. Any notice
or communication to any party hereto shall be deemed to have been given or made
as of the date so delivered, if personally delivered; when answered back, if
telexed; when receipt is acknowledged by telecopier confirmation, if telecopied;
and five calendar days after mailing if sent by registered or certified mail
(except that a notice of change of address shall not be deemed to have been
given until actually received by the addressee). Any party hereto may give
notice to the Holders at the addresses set forth for them in the register kept
by the Registrar under the Indenture.
 
     9.  Binding Agreement; Assignment; Obligations Several.  This Agreement
shall be binding upon and inure to the benefit of the parties hereto and their
respective successors and permitted assigns, including, without limitation, and
without the need for an express assignment or amendment, subsequent Holders of
Asset Proceeds Notes (whether or not the Asset Proceeds Notes held by such
persons are outstanding as of the date hereof or issued hereafter). This
Agreement may not be assigned by the Guarantor; provided, however, that this
Agreement shall be deemed to be automatically assigned by the Guarantor to any
person which is a successor to the Guarantor, in accordance with the terms of
this Guarantee. This Guarantee shall be deemed to be automatically assigned by
the Trustee to any person who succeeds to the Trustee in accordance with the
Indenture, and such assignee shall have all rights and powers of, and act as,
the Trustee hereunder. Each Holder of the Asset Proceeds Notes, by its
acceptance of any Asset Proceeds Notes, consents to and agrees to be bound by
the provisions hereof.
 
     10.  Governing Law.  This Agreement shall be construed in accordance with
and governed by the laws of the State of New York without regard to its conflict
of law principles, except as otherwise required by mandatory provisions of law.
 
                                       N-8
<PAGE>   317
 
     11.  Effectiveness; Termination.  This Agreement shall become effective on
the Effective Date. Upon the earlier of (i) payment of the Guarantor Obligations
in accordance with Section 2 hereof or (ii) such time as the Covered Deficiency
shall be $0 or less, this Agreement and the Pledge Agreement shall terminate.
Upon the irrevocable deposit in trust by the Guarantor with the Trustee of
immediately available funds or obligations of the United States of America
sufficient to pay all Guarantor Obligations on the first Business Day after the
Maturity Date then in effect, under the terms of an irrevocable trust agreement
(in form and substance reasonably satisfactory to the Trustee) and this
Guarantee and the Pledge Agreement shall terminate except for the Guarantor's
obligations to pay any Guarantor Obligations to the extent provided in Section 2
hereof (which payment shall be made, to the extent possible, from such trust
fund) and the Trustee's obligation to return to the Guarantor any amounts
remaining in such trust fund after payment in full of any Guarantor Obligations.
 
     12.  Amendments, Supplements and Waivers.
 
          (a) With the written consent of the Trustee and 66 2/3% of the Holders
     of the outstanding Asset Proceeds Notes, the Guarantor may, from time to
     time, enter into written supplemental agreements for the purpose of
     amending, modifying or waiving any provision of this Agreement or changing
     in any manner the rights of the Trustee and the Guarantor hereunder. Any
     such supplemental agreement shall be binding upon the Guarantor, the
     Trustee, the Holders of Asset Proceeds Notes, and their respective
     successors and permitted assigns.
 
          (b) Notwithstanding the provisions of Section 12(a) above, the Trustee
     and the Guarantor may, at any time and from time to time, without the
     consent of any Holders of Asset Proceeds Notes, enter into any agreement
     supplemental hereto or any additional agreement or grant any waiver
     hereunder, in form satisfactory to the Trustee which:
 
             (i) adds to the covenants of the Guarantor for the benefit of the
        Holders of the Asset Proceeds Notes or the Trustee, or surrenders any
        right or power herein conferred upon the Guarantor; or
 
             (ii) cures any ambiguity, defect or inconsistency in this Agreement
        or makes any other change which does not adversely affect the rights of
        any Holder of any Asset Proceeds Notes hereunder.
 
Notice of any amendment, modification or waiver to this Agreement or of any
additional or supplemental agreement entered into in accordance with Section
12(a) or (b) above shall be given by the Trustee to the Holders of Asset
Proceeds Notes.
 
     13.  Inconsistent Provisions.  If any provision of this Agreement shall be
inconsistent with, or contrary to, any provision of the Indenture, such
provision of the Indenture shall be controlling and shall supersede such
inconsistent provisions hereof to the extent necessary to give full effect to
such provision of the Indenture.
 
     14.  Severability.  In the event that any provision contained in this
Agreement shall for any reason be held to be illegal or invalid under the laws
of any jurisdiction, such illegality or invalidity shall in no way impair the
effectiveness of any other provision hereof or of such provision under the laws
of any other jurisdiction; provided, that in the construction and enforcement of
such provision under the laws of the jurisdiction in which such holding of
illegality or invalidity exists, and to the extent only of such illegality or
invalidity, this Agreement shall be construed and enforced as though such
illegal or invalid provision had not been contained herein.
 
     15.  Headings.  Section headings used herein are inserted for convenience
only and shall not in any way affect the meaning or construction of any
provision of this Agreement.
 
     16.  Counterparts.  This Agreement may be executed in any number of
counterparts, each of which when so executed and delivered shall be an original,
and all of which shall together constitute one and the same instrument. A
complete set of counterparts shall be lodged with the Trustee.
 
                                       N-9
<PAGE>   318
 
     IN WITNESS WHEREOF, the Trustee and the Guarantor have caused this
Agreement to be executed and delivered by their respective officers thereunto
duly authorized as of the day and year first above written.
 
                                          LONE STAR INDUSTRIES, INC.
 
                                          By:
                                             -------------------------------
 
                                          Title:
                                                ----------------------------

                                                                          BANK,
                                          --------------------------------
                                          as Trustee
 
                                          By:
                                             -------------------------------
 
                                          Title:
                                                ----------------------------
 
                                      N-10
<PAGE>   319
 
                                   EXHIBIT O
<PAGE>   320
 
                                                                       EXHIBIT O
 
                      CURE AMOUNTS FOR EXECUTORY CONTRACTS
                       TO BE ASSUMED PURSUANT TO THE PLAN
 
     1. Lease Agreement (#H021481), dated as of February 2, 1990, between Lone
        Star Industries, Inc. and AT&T Credit Corporation.
 
        Cure Amount for Defaults: $449.15
 
     2. Lease Agreement (#G006461), between Lone Star Industries, Inc. and AT&T
        Credit Corporation.
 
        Cure Amount for Defaults: $65.87
 
     3. Lease Agreement, dated February 15, 1989, between Caterpillar Financial
        Services Corporation and Lone Star Industries, Inc.
 
        Cure Amount for Defaults: $2,920.50
 
     4. Rental Agreement, dated December 7, 1989, between Sylvan Equipment of
        New Jersey, Inc. and New York Trap Rock Corporation.
 
        Cure Amount for Defaults: $13,166.55
 
     5. Lease Agreement, dated November 30, 1973, between Port Dock and Stone
        Corporation and New York Trap Rock Corporation.
 
        Cure Amount for Defaults: $4,651.38
 
                                       O-1
<PAGE>   321
 
                                       EXHIBIT P
<PAGE>   322
 
                                                                       EXHIBIT P
 
                          CERTIFICATE OF INCORPORATION
 
                                       OF
 
                             ROSEBUD HOLDINGS, INC.
 
     The undersigned incorporator, in order to form a corporation under the
General Corporation Law of the State of Delaware, certifies as follows:
 
     FIRST: The name of the corporation is Rosebud Holdings, Inc.
 
     SECOND: The registered office of the corporation is to be located at 1209
Orange Street, in the City of Wilmington, County of Kent, State of Delaware. The
name of its registered agent at that address is The Corporation Trust Center.
 
     THIRD: The purposes of the corporation are (i) to attempt to liquidate
certain assets which will be transferred to it pursuant to a Plan of
Reorganization (the "Plan") and to sell and realize the value of said assets and
to distribute the proceeds of such sales as provided by the Plan and, in the
interim before such liquidation is complete, to manage said assets in the
ordinary course of business; and (ii) to engage in any lawful act or activity
for which corporations may be organized under the General Corporation Law of the
State of Delaware.
 
     FOURTH: The corporation shall have the authority to issue One Thousand
(1,000) shares of common stock, par value one dollar ($1.00) per share. The
corporation shall not have the authority to issue nonvoting equity securities.
 
     FIFTH: The name and mailing address of the sole incorporator are as
follows:
 
                                Daniel J. Greaney, Esq.
                                Proskauer Rose Goetz & Mendelsohn
                                1585 Broadway
                                New York, New York 10036
 
     SIXTH: Whenever a compromise or arrangement is proposed between this
corporation and its creditors or any class of them and/or between this
corporation and its stockholders or any class of them, any court of equitable
jurisdiction within the State of Delaware may, on the application in a summary
way of this corporation or of any creditor or stockholder thereof or on the
application of any receiver or receivers appointed for this corporation under
the provisions of sec.279 of Title 8 of the Delaware Code or on the application
of trustees in dissolution or of any receiver or receivers appointed for this
corporation under the provisions of sec.279 of Title 8 of the Delaware Code
order a meeting of the creditors or class of creditors, and/or of the
stockholders of class of stockholders of this corporation, as the case may be,
to be summoned in such manner as the said court directs. If a majority in number
representing three-fourths in value of the creditors of class of creditors,
and/or of the stockholders or class of stockholders of this corporation, as the
case may be, agree to any compromise or arrangement and to any reorganization of
this corporation as a consequence of such compromise or arrangement, the said
compromise or arrangement and the said reorganization shall, if sanctioned by
the court to which the said application has been made, be binding on all the
creditors or class or creditors, and/or on all the stockholders or class of
stockholders, of this corporation, as the case may be, and also on this
corporation.
 
     SEVENTH: To the fullest extent that elimination or limitation of the
liability of directors is permitted by law, as the same is now or may hereafter
be in effect, no director of the corporation shall be liable to the corporation
or its stockholders for monetary damages for breach of his or her fiduciary duty
as a director.
 
     EIGHTH: The corporation shall, to the fullest extent permitted by law, as
the same is now or may hereafter be in effect, indemnify each person (including
the heirs, executors, administrators and other personal
 
                                       P-1
<PAGE>   323
 
representatives of such person) against expenses including attorneys' fees,
judgments, fines and amounts paid in settlement, actually and reasonably
incurred by such person in connection with any threatened, pending or completed
suit, action or proceeding (whether civil, criminal, administrative or
investigative in nature or otherwise) in which such person may be involved by
reason of the fact that he or she is or was a director or officer of the
corporation or is or was serving any other incorporated or unincorporated
enterprise in such capacity at the request of the corporation.
 
     NINTH: Unless, and except to the extent that the by-laws of the corporation
shall so require, the election of directors of the corporation need not be by
written ballot.
 
     TENTH: The board of directors may from time to time adopt, amend or repeal
the by-laws of the corporation, subject to the power of the stockholders to
adopt any by-laws or to amend or repeal any by-laws adopted, amended or repealed
by the board of directors.
 
     IN WITNESS WHEREOF, I have hereunto set my hand this   day of        ,
1993.
 
                                          --------------------------------------
                                          Daniel J. Greaney
                                          Incorporator
 
                                       P-2
<PAGE>   324
 
                                   EXHIBIT Q
<PAGE>   325
 
                                                                       EXHIBIT Q
 
                                    BY-LAWS
 
                                       OF
 
                             ROSEBUD HOLDINGS, INC.
 
1.  MEETINGS OF STOCKHOLDERS.
 
     1.1  Annual Meeting.  The annual meeting of stockholders shall be held on
the first Monday of May in each year, or as soon thereafter as practicable, and
shall be held at a place and time determined by the board of directors (the
"Board").
 
     1.2  Special Meetings.  Special meetings of the stockholders may be called
by resolution of the Board or the Chairman of the Board or the president and
shall be called by the Chairman of the Board, the president or secretary upon
the written request (stating the purpose or purposes of the meeting) of a
majority of the directors then in office or of the holders of a majority of the
outstanding shares entitled to vote. Only business related to the purposes set
forth in the notice of the meeting may be transacted at a special meeting.
 
     1.3  Place and Time of Meetings.  Meetings of the stockholders may be held
in or outside Delaware at the place and time specified by the officers or
stockholders requesting the meeting.
 
     1.4  Notice of Meetings; Waiver of Notice.  Written notice of each meeting
of stockholders shall be given to each stockholder entitled to vote at the
meeting, except that (a) it shall not be necessary to give notice to any
stockholder who submits a signed waiver of notice before or after the meeting,
and (b) no notice of an adjourned meeting need be given, except when required
under section 1.5 or by law. Each notice of a meeting shall be given, personally
or by mail, not fewer than 10 nor more than 60 days before the meeting and shall
state the time and place of the meeting, and, unless it is the annual meeting,
shall state at whose direction or request the meeting is called and the purposes
for which it is called. If mailed, notice shall be considered given when mailed
to a stockholder at his or her address on the corporation's records. The
attendance of any stockholder at a meeting, without protesting at the beginning
of the meeting that the meeting is not lawfully called or convened, shall
constitute a waiver of notice by such stockholder.
 
     1.5  Quorum.  At any meeting of stockholders, the presence in person or by
proxy of the holders of a majority of the shares entitled to vote shall
constitute a quorum for the transaction of any business. In the absence of a
quorum, a majority in voting interest of those present or, if no stockholders
are present, any officer entitled to preside at or to act as secretary of the
meeting, may adjourn the meeting until a quorum is present. At any adjourned
meeting at which a quorum is present, any action may be taken that might have
been taken at the meeting as originally called. No notice of an adjourned
meeting need be given, if the time and place are announced at the meeting at
which the adjournment is taken, except that, if adjournment is for more than 30
days or if, after the adjournment, a new record date is fixed for the meeting,
notice of the adjourned meeting shall be given pursuant to section 1.4.
 
     1.6  Voting; Proxies.  Each stockholder of record shall be entitled to one
vote for each share registered in his or her name. Corporate action to be taken
by stockholder vote, other than the election of directors, shall be authorized
by a majority of the votes cast at a meeting of stockholders, except as
otherwise provided by law or by section 1.8. Directors shall be elected in the
manner provided in section 2.1. Voting need not be by ballot, unless requested
by a majority of the stockholders entitled to vote at the meeting or ordered by
the chairman of the meeting. Each stockholder entitled to vote at any meeting of
stockholders or to express consent to or dissent from corporate action in
writing without a meeting may authorize another person to act for him or her by
proxy. No proxy shall be valid after three years from its date, unless it
provides otherwise.
 
     1.7  List of Stockholders.  Not fewer than 10 days prior to the date of any
meeting of stockholders, the secretary of the corporation shall prepare a
complete list of stockholders entitled to vote at the meeting, arranged in
alphabetical order and showing the address of each stockholder and the number of
shares registered in his or her name. For a period of not fewer than 10 days
prior to the meeting, the list shall be available during ordinary business hours
for inspection by any stockholder for any purpose germane to the
 
                                       Q-1
<PAGE>   326
 
meeting. During this period, the list shall be kept either (a) at a place within
the city where the meeting is to be held, if that place shall have been
specified in the notice of the meeting, or (b) if not so specified, at the place
where the meeting is to be held. The list shall also be available for inspection
by stockholders at the time and place of the meeting.
 
     1.8  Action by Consent Without a Meeting.  Any action required or permitted
to be taken at any meeting of stockholders may be taken without a meeting,
without prior notice and without a vote, if a consent in writing, setting forth
the action so taken, shall be signed by the holders of outstanding stock having
not fewer than the minimum number of votes that would be necessary to authorize
or take such action at a meeting at which all shares entitled to vote thereon
were present and voting. Prompt notice of the taking of any such action shall be
given to those stockholders who did not consent in writing.
 
2.  BOARD OF DIRECTORS.
 
     2.1  Number, Qualification, Election and Term of Directors.  The business
of the corporation shall be managed by the entire Board of Directors, which
shall consist of such number of directors which shall be not less than three but
not more than eighteen, as shall be determined, from time to time, by resolution
of the Board of Directors. Initially, the entire Board shall consist of
directors. The number of directors may by changed by resolution of a majority of
the Board or by the stockholders, but no decrease may shorten the term of any
incumbent director. Directors shall be elected at each annual meeting of
stockholders by a plurality of the votes cast and shall hold office until the
next annual meeting of stockholders and until the election and qualification of
their respective successors, subject to the provisions of section 2.9. As used
in these By-laws, the term "entire Board" means the total number of directors
the corporation would have, if there were no vacancies on the Board.
 
     2.2  Quorum and Manner of Acting.  A majority of the entire Board shall
constitute a quorum for the transaction of business at any meeting, except as
provided in section 2.10. Action of the Board shall be authorized by the vote of
the majority of the directors present at the time of the vote, if there is a
quorum, unless otherwise provided by law or these By-laws. In the absence of a
quorum, a majority of the directors present may adjourn any meeting from time to
time until a quorum is present.
 
     2.3  Place of Meetings.  Meetings of the Board may be held in or outside
Delaware.
 
     2.4  Annual and Regular Meetings.  Annual meetings of the Board, for the
election of officers and consideration of other matters, shall be held either
(a) without notice immediately after the annual meeting of stockholders and at
the same place, or (b) as soon as practicable after the annual meeting of
stockholders, on notice as provided in section 2.6. Regular meetings of the
Board may be held without notice at such times and places as the Board
determines. If the day fixed for a regular meeting is a legal holiday, the
meeting shall be held on the next business day.
 
     2.5  Special Meetings.  Special meetings of the Board may be called by the
Chairman of the Board, by the president or by a majority of the directors.
 
     2.6  Notice of Meetings; Waiver of Notice.  Notice of the time and place of
each special meeting of the Board, and of each annual meeting not held
immediately after the annual meeting of stockholders and at the same place,
shall be given to each director by mailing it to such director at his or her
residence or usual place of business at least three days before the meeting, or
by delivering or telephoning or telegraphing it to him or her at least two days
before the meeting. Notice of a special meeting also shall state the purpose or
purposes for which the meeting is called. Notice need not be given to any
director who submits a signed waiver of notice before or after the meeting or
who attends the meeting without protesting at the beginning of the meeting the
transaction of any business because the meeting was not lawfully called or
convened. Notice of any adjourned meeting need not be given, other than by
announcement at the meeting at which the adjournment is taken.
 
     2.7  Board or Committee Action Without a Meeting.  Any action required or
permitted to be taken by the Board or by any committee of the Board may be taken
without a meeting, if all the members of the Board or the committee consent in
writing to the adoption of a resolution authorizing the action. The resolution
and
 
                                       Q-2
<PAGE>   327
 
the written consents by the members of the Board or the committee shall be filed
with the minutes of the proceedings of the Board or the committee.
 
     2.8  Participation in Board or Committee Meetings by Conference
Telephone.  Any or all members of the Board or any committee of the Board may
participate in a meeting of the Board or the committee by means of a conference
telephone or similar communications equipment allowing all persons participating
in the meeting to hear each other at the same time. Participation by such means
shall constitute presence in person at the meeting.
 
     2.9  Resignation and Removal of Directors.  Any director may resign at any
time by delivering his or her resignation in writing to the Chairman of the
Board, the president or the secretary of the corporation, to take effect at the
time specified in the resignation; the acceptance of a resignation, unless
required by its terms, shall not be necessary to make it effective. Any or all
of the directors may be removed at any time, either with or without cause, by
vote of the stockholders.
 
     2.10  Vacancies.  Any vacancy in the Board, including one created by an
increase in the number of directors, may be filled for the unexpired term by a
majority vote of the remaining directors, though less than a quorum.
 
     2.11  Compensation.  Directors shall receive such compensation as the Board
determines, together with reimbursement of their reasonable expenses in
connection with the performance of their duties. A director also may be paid for
serving the corporation or its affiliates or subsidiaries in other capacities.
 
3.  COMMITTEES.
 
     3.1  Executive Committee.  The Board, by resolution adopted by a majority
of the entire Board, may designate an executive committee of one or more
directors, which shall have all the powers and authority of the Board, except as
otherwise provided in the resolution, section 141(c) of the General Corporation
Law of Delaware or any other applicable law. The members of the executive
committee shall serve at the pleasure of the Board. All action of the executive
committee shall be reported to the Board at its next meeting.
 
     3.2  Other Committees.  The Board, by resolution adopted by a majority of
the entire Board, may designate other committees of one or more directors, which
shall serve at the Board's pleasure and have such powers and duties as the Board
determines.
 
     3.3  Rules Applicable to Committees.  The Board may designate one or more
directors as alternate members of any committee, who may replace any absent or
disqualified member at any meeting of the committee. In case of the absence or
disqualification of any member of a committee, the member or members present at
a meeting of the committee and not disqualified, whether or not a quorum, may
unanimously appoint another director to act at the meeting in place of the
absent or disqualified member. All action of a committee shall be reported to
the Board at its next meeting. Each committee shall adopt rules of procedure and
shall meet as provided by those rules or by resolutions of the Board.
 
4.  OFFICERS.
 
     4.1  Number; Security.  The executive officers of the corporation shall be
the Chairman of the Board, the president, one or more vice presidents (including
an executive vice president, or senior vice president or other vice president,
if the Board so determines), a secretary and a treasurer. Any two or more
offices may be held by the same person. The board may require any officer, agent
or employee to give security for the faithful performance of his or her duties.
 
     4.2  Election; Term of Office.  The executive officers of the corporation
shall be elected annually by the Board, and each such officer shall hold office
until the next annual meeting of the Board and until the election of his or her
successor, subject to the provisions of section 4.4.
 
     4.3  Subordinate Officers.  The Board may appoint subordinate officers
(including assistant secretaries and assistant treasurers), agents or employees,
each of whom shall hold office for such period and have such
 
                                       Q-3
<PAGE>   328
 
powers and duties as the Board determines. The Board may delegate to any
executive officer or committee the power to appoint and define the powers and
duties of any subordinate officers, agents or employees.
 
     4.4  Resignation and Removal of Officers.  Any officer may resign at any
time by delivering his or her resignation in writing to the Chairman of the
Board, the president or the secretary of the corporation, to take effect at the
time specified in the resignation; the acceptance of a resignation, unless
required by its terms, shall not be necessary to make it effective. Any officer
elected or appointed by the Board or appointed by an executive officer or by a
committee may be removed by the Board either with or without cause, and in the
case of an officer appointed by an executive officer or by a committee, by the
officer or committee that appointed such officer or by the president.
 
     4.5  Vacancies.  A vacancy in any office may be filled for the unexpired
term in the manner prescribed in sections 4.2 and 4.3 for election or
appointment to the office.
 
     4.6  The Chairman of the Board.  The Chairman of the Board (who shall be a
Director) shall be the Chief Executive Officer of the Corporation, unless the
Board otherwise directs, and shall preside at all meetings of stockholders. The
Chairman of the Board shall perform such other duties and may exercise such
other powers as from time to time may be assigned to him or her by these By-laws
or by the Board of Directors. In the absence of the President the Chairman shall
perform all of the duties and exercise all of the powers of the President.
 
     4.7  The President.  Subject to the control of the Chairman of the Board,
unless the Board otherwise directs, the president shall be chief operating
officer of the corporation, shall have general supervision over the business of
the corporation and shall have such other powers and duties as presidents of
corporations usually have or as the Board assigns to him or her. The President
shall exercise such other powers and perform such other duties as may be
assigned to him or her by the Board of Directors or the Chairman of the Board.
 
     4.8  Vice President.  Each vice president shall have such powers and duties
as the Board, the Chairman of the Board or the president assigns to him or her.
 
     4.9  The Treasurer.  The treasurer shall be in charge of the corporation's
books and accounts. Subject to the control of the Board, the treasurer shall
have such other powers and duties as the Board, the Chairman of the Board or the
president assigns to him or her.
 
     4.10  The Secretary.  The secretary shall be the secretary of, and keep the
minutes of, all meetings of the Board and the stockholders, shall be responsible
for giving notice of all meetings of stockholders and the Board, and shall keep
the seal and, when authorized by the Board, apply it to any instrument requiring
it. Subject to the control of the Board, the secretary shall have such powers
and duties as the Board, the Chairman of the Board or the president assigns to
him or her. In the absence of the secretary from any meeting, the minutes shall
be kept by the person appointed for that purpose by the presiding officer.
 
     4.11  Salaries.  The Board may fix the officers' salaries, if any, or it
may authorize the Chairman of the Board or the president to fix the salary of
any other officer.
 
5.  SHARES.
 
     5.1  Certificates.  The corporation's shares shall be represented by
certificates in the form approved by the Board. Each certificate shall be signed
by the Chairman of the Board, the president or a vice president, and by the
secretary or an assistant secretary or the treasurer or an assistant treasurer,
and shall be sealed with the corporation's seal or a facsimile of the seal. Any
or all of the signatures on the certificate may be a facsimile.
 
     5.2  Transfers.  Shares shall be transferable only on the corporation's
books, upon surrender of the certificate for the shares, properly endorsed. The
Board may require satisfactory surety before issuing a new certificate to
replace a certificate claimed to have been lost or destroyed.
 
     5.3  Determination of Stockholders of Record.  The Board may fix, in
advance, a date as the record date for the determination of stockholders
entitled to notice of or to vote at any meeting of the stockholders, or to
express consent to or dissent from any proposal without a meeting, or to receive
payment of any dividend or
 
                                       Q-4
<PAGE>   329
 
the allotment of any rights, or for the purpose of any other action. The record
date may not be more than 60 or fewer than 10 days before the date of the
meeting or more than 60 days before any other action.
 
6.  INDEMNIFICATION AND INSURANCE.
 
     6.1  Right to Indemnification.  Each person who was or is a party or is
threatened to be made a party to or is involved in any action, suit or
proceeding, whether civil, criminal, administrative or investigative (a
"proceeding"), by reason of the fact that he or she, or a person of whom he or
she is the legal representative, is or was a director or officer of the
corporation or is or was serving at the request of the corporation as a
director, officer, employee, agent or member of the management committee of
another corporation, partnership, joint venture, trust or other enterprise
(including without limitation Lone Star Industries, Inc., a Delaware corporation
and the parent of the Corporation), including service with respect to employee
benefit plans, whether the basis of such proceeding is alleged action or
inaction in an official capacity or in any other capacity while serving as
director, officer, employee or agent, shall be indemnified and held harmless by
the corporation to the fullest extent permitted by the General Corporation Law
of Delaware, as amended from time to time, against all costs, charges, expenses,
liabilities and losses (including attorneys' fees, judgments, fines, ERISA
excise taxes or penalties and amounts paid or to be paid in settlement)
reasonably incurred or suffered by such person in connection therewith, and that
indemnification shall continue as to a person who has ceased to be a director,
officer, employee or agent and shall inure to the benefit of his or her heirs,
executors and administrators; provided, however, that, except as provided in
section 6.2, the corporation shall indemnify any such person seeking
indemnification in connection with a proceeding (or part thereof) initiated by
that person, only if that proceeding (or part thereof) was authorized by the
Board. The right to indemnification conferred in these By-laws shall be a
contract right and shall include the right to be paid by the corporation the
expenses incurred in defending any such proceeding in advance of its final
disposition; provided, however, that, if the General Corporation Law of
Delaware, as amended from time to time, requires, the payment of such expenses
incurred by a director or officer in his or her capacity as a director or
officer (and not in any other capacity in which service was or is rendered by
that person while a director or officer, including, without limitation, service
to an employee benefit plan) in advance of the final disposition of a proceeding
shall be made only upon delivery to the corporation of an undertaking, by or on
behalf of such director or officer, to repay all amounts so advanced, if it
shall ultimately be determined that such director or officer is not entitled to
be indemnified under these By-laws or otherwise. The corporation may, by action
of its Board, provide indemnification to employees and agents of the corporation
with the same scope and effect as the foregoing indemnification of directors and
officers.
 
     6.2  Right of Claimant to Bring Suit.  If a claim under section 6.1 is not
paid in full by the corporation within 30 days after a written claim has been
received by the corporation, the claimant may at any time thereafter bring suit
against the corporation to recover the unpaid amount of the claim and, if
successful in whole or in part, the claimant also shall be entitled to be paid
the expense of prosecuting that claim. It shall be a defense to any such action
(other than an action brought to enforce a claim for expenses incurred in
defending any proceeding in advance of its final disposition, where the required
undertaking, if any, is required and has been tendered to the corporation) that
the claimant has failed to meet a standard of conduct that makes it permissible
under Delaware law for the corporation to indemnify the claimant for the amount
claimed. Neither the failure of the corporation (including its Board, its
independent legal counsel or its stockholders) to have made a determination
prior to the commencement of such action that indemnification of the claimant is
permissible in the circumstances because he or she has met that standard of
conduct, nor an actual determination by the corporation (including its Board,
its independent counsel or its stockholders) that the claimant has not met that
standard of conduct, shall be a defense to the action or create a presumption
that the claimant has failed to meet that standard of conduct.
 
     6.3  Non-Exclusivity of Rights.  The right to indemnification and the
payment of expenses incurred in defending a proceeding in advance of its final
disposition conferred in this section 6 shall not be exclusive of any other
right any person may have or hereafter acquire under any statute, provision of
the certificate of incorporation, bylaw, agreement, vote of stockholders or
disinterested directors or otherwise.
 
                                       Q-5
<PAGE>   330
 
     6.4  Insurance.  The corporation may maintain insurance, at its expense, to
protect itself and any director, officer, employee or agent of the corporation
or another corporation, partnership, joint venture, trust or other enterprise
against any such expense, liability or loss, whether or not the corporation
would have the power to indemnify such person against that expense, liability or
loss under Delaware law.
 
     6.5  Expenses as a Witness.  To the extent any director, officer, employee
or agent of the corporation is by reason of such position, or a position with
another entity at the request of the corporation, a witness in any action, suit
or proceeding, he shall be indemnified against all costs and expenses actually
and reasonably incurred by him or her or on his or her behalf in connection
therewith.
 
     6.6  Indemnity Agreements.  The corporation may enter into agreement with
any director, officer, employee or agent of the corporation providing for
indemnification to the fullest extent permitted by Delaware law.
 
7.  MISCELLANEOUS.
 
     7.1  Seal.  The Board shall adopt a corporate seal, which shall be in the
form of a circle and shall bear the corporation's name and the year and state in
which it was incorporated.
 
     7.2  Fiscal Year.  The Board may determine the corporation's fiscal year.
Until changed by the Board, the last day of the corporation's fiscal year shall
be December 31.
 
     7.3  Voting of Shares in Other Corporations.  Shares in other corporations
held by the corporation may be represented and voted by an officer of this
corporation or by a proxy or proxies appointed by one of them. The Board may,
however, appoint some other person to vote the shares.
 
     7.4  Amendments.  By-laws may be amended, repealed or adopted by the
stockholders.
 
                                       Q-6
<PAGE>   331
 
                                                                       EXHIBIT R
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                                PLEDGE AGREEMENT
 
                                     AMONG
 
                          LONE STAR INDUSTRIES, INC.,
 
                                                BANK,
                            AS COLLATERAL AGENT AND
 
                                              BANK,
                       AS TRUSTEE FOR THE HOLDERS OF THE
                       10% ASSET PROCEEDS NOTES DUE 1997
                   OF
 
                            ------------------------
 
                       DATED AS OF                , 1993
                            ------------------------
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   332
 
                               TABLE OF CONTENTS
 
<TABLE>
<S>           <C>                                                                         <C>
Section 1.    Definitions...............................................................    R-1
Section 2.    Certain Covenants.........................................................    R-3
Section 3.    The Security Interests....................................................    R-3
Section 4.    Delivery of Pledged Securities............................................    R-3
Section 5.    Filing; Further Assurances................................................    R-4
Section 6.    Right to Vote and to Receive Cash Distributions on Pledged Collateral;
                Appointment as Attorney-in-Fact.........................................    R-4
Section 7.    Exercise of Remedies......................................................    R-5
Section 8.    Priority of Payments......................................................    R-7
Section 9.    Appointment...............................................................    R-7
Section 10.   Nature of Duties..........................................................    R-7
Section 11.   Lack of Reliance on the Collateral Agent..................................    R-7
Section 12.   Compensation and Indemnification..........................................    R-7
Section 13.   Collateral Agent's Dealings with the Pledgor..............................    R-8
Section 14.   Securityholders...........................................................    R-8
Section 15.   Resignation by or Removal of the Collateral Agent.........................    R-9
Section 16.   Collateral Account........................................................    R-9
Section 17.   Notices...................................................................   R-10
Section 18.   Binding Agreement; Assignment; Obligations Several........................   R-10
Section 19.   Governing Law.............................................................   R-10
Section 20.   Effectiveness; Termination................................................   R-10
Section 21.   Amendments, Supplements and Waivers.......................................   R-11
Section 22.   Inconsistent Provisions...................................................   R-11
Section 23.   Severability..............................................................   R-11
Section 24.   Headings..................................................................   R-11
Section 25.   Counterparts..............................................................   R-11
Section 26.   Exhibits and Schedules....................................................   R-11
</TABLE>
<PAGE>   333
 
                                   EXHIBIT R
<PAGE>   334
 
                                PLEDGE AGREEMENT
 
     PLEDGE AGREEMENT (the "Agreement"), dated as of             , by and among
Lone Star Industries, Inc., a Delaware corporation (the "Pledgor"), and
            Bank, as Collateral Agent and             Bank, as Trustee (the
"Asset Proceeds Note Trustee") with respect to the Securities issued under the
Asset Proceeds Note Indenture (the "Asset Proceeds Note Indenture") of even date
herewith between the Asset Proceeds Note Trustee and Rosebud Holdings, Inc., a
wholly-owned subsidiary of the Pledgor (the "Obligor").
 
                              W I T N E S S E T H:
 
     WHEREAS, the Asset Proceeds Note Trustee has entered into the Asset
Proceeds Note Indenture pursuant to which the Obligor shall issue initially up
to $       aggregate principal amount of 10% Asset Proceeds Notes due 1997 (the
"Securities");
 
     WHEREAS, the Pledgor has agreed, pursuant to a Guarantee Agreement of even
date herewith (the "Guarantee Agreement"), to guarantee a portion of the
Obligor's obligations under the Securities;
 
     WHEREAS, the Pledgor is the legal and beneficial owner of the outstanding
shares of common stock (the "Pledged Shares") set forth on Schedule I hereto of
the Obligor;
 
     WHEREAS, the Pledgor has agreed to grant a security interest in and to the
Pledged Shares and other Pledged Collateral (as such term and all other
capitalized terms used herein without definition are defined in Section 1
hereof) to secure the Secured Obligations;
 
     WHEREAS, the security interest and rights of the Asset Proceeds Note
Trustee and the Holders of Securities granted herein are intended to be in
addition to the security interest and rights being granted by the Obligor in a
Pledge [, Intercreditor] and Collateral Agency Agreement of even date herewith;
and
 
     WHEREAS, the parties hereto desire to set forth their understanding with
respect to the Collateral Agent's rights and duties in and to the Pledged
Collateral.
 
     NOW, THEREFORE, in consideration of these premises and other benefits, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
hereby agree as follows:
 
     Section 1.  Definitions.  As used herein, the following terms shall have
the meanings set forth in this Section 1, and all other capitalized terms not
otherwise defined herein shall have the meanings set forth in the Asset Proceeds
Note Indenture. All terms not defined in the Asset Proceeds Note Indenture or in
this Agreement shall have the same meaning as in Article 9 of the Uniform
Commercial Code as in effect in the State of New York.
 
          Acceptable Bank: means a bank or trust company in good standing and
     incorporated under the laws of the United States or any State thereof or
     the District of Columbia, with a combined capital and surplus of at least
     $50,000,000 as set forth in its most recent published report of condition,
     with its principal corporate trust office within the United States.
 
          Agreement: means this Pledge Agreement, as the same may be amended
     from time to time in accordance with its terms.
 
          Asset Proceeds Note Indenture: means the Indenture, dated as of the
     date hereof, between the Obligor and the Asset Proceeds Note Trustee,
     pursuant to which the Securities are issued, as the same may be amended or
     supplemented from time to time in accordance with the terms thereof.
 
          Asset Proceeds Note Trustee: means the Trustee, as defined in the
     Asset Proceeds Note Indenture, and any successor trustee appointed
     thereunder.
 
          Collateral Agent: means             Bank, in its capacity as
     Collateral Agent under this Agreement, until its resignation or removal as
     Collateral Agent pursuant to the provisions of Section 15 hereof and, upon
     such resignation or removal, any successor Collateral Agent appointed
     pursuant to the provisions of
 
                                       R-1
<PAGE>   335
 
     Section 15 hereof until such successor's resignation or removal as
     Collateral Agent pursuant to the provisions of Section 15 hereof.
 
          Event of Default: has the meaning assigned to such term in the
     Guarantee Agreement and shall also mean any failure by the Pledgor in any
     material respect to perform its agreements hereunder which is not cured or
     waived within 90 days after receipt of written notice thereof from the
     Collateral Agent or the Asset Proceeds Note Trustee stating the nature of
     the default.
 
          Guarantee Agreement: has the meaning assigned to such term in the
     recitals.
 
          Lien: means with respect to any asset, any mortgage, lien, pledge,
     charge, security interest or similar encumbrance in respect of such asset,
     whether or not filed, recorded or otherwise perfected under applicable law
     (including any conditional sale or other title retention agreement, any
     capitalized lease in the nature thereof, and any filing of or agreement to
     give any financing statement under the Uniform Commercial Code or
     equivalent statutes of any jurisdiction, other than an information filing).
 
          Officer's Certificate: means a certificate signed by any executive
     officer of the Pledgor.
 
          Opinion of Counsel: means a written opinion from legal counsel who is
     reasonably acceptable to the Collateral Agent. The counsel may be an
     employee of or counsel to the Pledgor, the Collateral Agent or the Asset
     Proceeds Note Trustee.
 
          Pledge Documents: means, collectively, this Pledge Agreement and each
     of the stock powers and other instruments and documents pertaining to the
     Pledged Collateral required to be delivered by the Pledgor pursuant to the
     terms hereof, as the same may be amended, restated or otherwise modified
     from time to time in accordance with the terms hereof.
 
          Pledged Collateral: means, collectively, (i) the Pledged Shares and
     the certificates representing the Pledged Shares and the Relevant Records,
     wherever located, whether now owned or existing or hereafter acquired or
     arising; and (ii) all additional shares of, and all securities convertible
     into, and warrants, options or other rights to purchase, stock of, or
     equity interest in, the Obligor from time to time acquired by the Pledgor
     in respect of the Pledged Shares, and the certificates representing such
     additional shares (any such additional shares shall constitute part of the
     Pledged Shares under and as defined in this Pledge Agreement); and (iii)
     all Proceeds of any of such Pledged Collateral.
 
          Pledged Shares: has the meaning assigned to such term in the recitals
     hereto.
 
          Proceeds: shall have the meaning ascribed thereto in the UCC and shall
     include, without limitation, the following: (a) whatever is now or
     hereafter received by the Pledgor upon the sale, exchange, collection or
     other disposition of any Pledged Collateral including, without limitation,
     all dividends, cash, options, warrants, rights, instruments and other
     property from time to time received, receivable or otherwise distributed in
     respect of or in exchange for any or all Pledged Collateral; (b) any
     property now or hereafter acquired by the Pledgor with any Proceeds; and
     (c) any payments under insurance or any indemnity, warranty or guaranty,
     payable by reason of loss or damage to or otherwise with respect to any of
     the foregoing.
 
          Relevant Records: means, collectively, all documents, ledger sheets,
     files, books, records, indemnities, warranties, guaranties and insurance
     policies relating solely to the Pledged Shares.
 
          Secured Obligations: means, collectively, all obligations of the
     Pledgor under the Guarantee Agreement (which shall not for any purposes be
     deemed to include any obligations under the Payment Notes, as defined in
     the Guarantee Agreement).
 
          Securities: means the 10% Asset Proceeds Notes due 1997 issued by the
     Obligor under the Asset Proceeds Note Indenture, as in effect on the date
     hereof or as amended in accordance with the provisions thereof.
 
          Securities Act: has the meaning assigned to such term in Section 7(b)
     hereof.
 
                                       R-2
<PAGE>   336
 
          Security Interests: means the security interests in the Pledged
     Collateral granted hereunder in favor of the Collateral Agent on behalf of
     the Holders of the Securities.
 
     Section 2.  Certain Covenants.  The Pledgor covenants that:
 
     (a) except for the Security Interest and the other security interests
contemplated hereby, it will not create, assume, incur or permit to exist or to
be created, assumed or incurred, directly or indirectly, any Lien of any kind on
the Pledged Collateral, and that it will defend the Pledged Collateral against,
and take such action as is necessary to remove, any such Lien, and will defend
the Security Interests against the claims and demands of all Persons; and
 
     (b) it will advise the Collateral Agent promptly, in reasonable detail, of
any Lien or claim made or asserted against any of the Pledged Collateral and of
the occurrence of any other event that would have a material adverse effect on
the enforceability of the Security Interests created hereunder or under the
other Pledge Documents.
 
     Section 3.  The Security Interests.
 
     (a) In order to secure the full and punctual payment and performance of the
Secured Obligations in accordance with the terms of the Guarantee Agreement, the
Pledgor hereby assigns and pledges to and with the Collateral Agent and grants
to the Collateral Agent for the ratable benefit of the Holders of the Securities
a continuing first priority security interest in and Lien upon all of the
Pledgor's right, title and interest in the Pledged Collateral.
 
     (b) In the event that the Pledgor at any time receives any Pledged
Collateral, the Pledgor shall immediately pledge and deposit with the Collateral
Agent such Pledged Collateral and appropriate documents of assignment relating
thereto to be held by the Collateral Agent subject to all provisions of this
Agreement.
 
     (c) The Security Interests are granted as security only and shall not
subject the Collateral Agent or any of the Holders of the Securities to, or
transfer or in any way affect or modify, any obligation or liability of the
Pledgor with respect to any of the Pledged Collateral or any transaction in
connection therewith.
 
     Section 4.  Delivery of Pledged Securities.
 
     (a) All certificates or instruments representing or evidencing the Pledged
Collateral outstanding as of the date hereof shall be delivered to the
Collateral Agent on the Effective Date and shall be held by the Collateral Agent
pursuant hereto at all times during the term of this Agreement, and all
certificates and instruments representing or evidencing stock or other
securities acquired by the Pledgor after the date hereof and constituting
Pledged Collateral hereunder shall be delivered to the Collateral Agent
immediately upon, and held by the Collateral Agent at all times after,
acquisition thereof by the Pledgor. All such certificates or instruments shall
be in suitable form for transfer by delivery, or shall be accompanied by duly
executed instruments of transfer or assignment endorsed in blank, all in form
and substance reasonably satisfactory to the Collateral Agent.
 
     (b) The Pledgor agrees that it will not cause the Obligor to issue any
securities or instruments, whether in addition to, by stock dividend or other
distribution upon, or in substitution or exchange for, any Pledged Collateral or
otherwise, except for securities and instruments that are issued to the Pledgor
and promptly delivered to the Collateral Agent pursuant to Section 4(a) hereof
and in which the Collateral Agent, for the account and benefit of the Holders of
the Securities, has a valid and perfected first priority security interest free
and clear of all other Liens and with respect to which no other party has any
interest.
 
     (c) Upon the occurrence and during the continuance of an Event of Default,
the Collateral Agent shall have the right, at any time in its discretion, to
transfer to or to register in the name of the Collateral Agent or any of its
nominees any or all of the Pledged Collateral, including the Pledged Shares
(with, in the discretion of the Collateral Agent, such transfer or registration
expressly empowering the Collateral Agent to vote any voting securities included
therein). In addition, the Collateral Agent shall have the right at any time to
exchange certificates or instruments representing or evidencing Pledged
Collateral for certificates or instruments of smaller or larger denominations.
 
                                       R-3
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     Section 5.  Filing; Further Assurances.
 
     (a) The Pledgor at its own expense will execute, deliver, file and record
any financing statement, specific assignment or other paper and take any action
that may be necessary or desirable, or that the Collateral Agent may from time
to time reasonably request, in order to create, preserve, perfect or validate
any Security Interest intended to be granted hereunder or to enable the
Collateral Agent to exercise and enforce its rights hereunder with respect to
any of the Pledged Collateral, all in manner and form reasonably satisfactory to
the Collateral Agent; provided, however, the Pledgor shall not be required to
register any sale of the Pledged Collateral under the Securities Act. Without
limiting the generality of the foregoing, the Pledgor will: (i) execute and file
such financing or continuation statements, or amendments thereto and such other
instruments or notices as may be necessary or desirable which the Collateral
Agent may reasonably request in order to perfect and preserve the security
interests granted or purported to be granted hereby; and (ii) deliver and pledge
to the Collateral Agent all securities and instruments constituting Pledged
Collateral duly endorsed and accompanied by duly executed instruments of
transfer or assignments, all in form and substance satisfactory to the
Collateral Agent. To the extent permitted by applicable law, the Pledgor hereby
authorizes the Collateral Agent to execute and file without the signature of the
Pledgor, in the name of the Collateral Agent or otherwise, Uniform Commercial
Code financing statements and continuation statements, and fixture filings and
amendments thereto (which may be carbon, photographic, photostatic or other
reproductions of this Agreement or of a financing statement relating to this
Agreement) that the Collateral Agent in its sole discretion may deem necessary
or appropriate to further perfect the Security Interests or any of them.
 
     (b) The Pledgor covenants that it will not enter into any agreement that
would impair in any material respect the Security Interests granted hereunder.
 
     (c) The Pledgor will furnish to the Collateral Agent, on request, from time
to time statements and schedules further identifying and describing the Pledged
Collateral and such other reports in connection with the Pledged Collateral as
the Collateral Agent may reasonably request, all in reasonable detail.
 
     Section 6.  Right to Vote and to Receive Cash Distributions on Pledged
Collateral; Appointment as Attorney-in-Fact.
 
     (a) So long as no Event of Default has occurred and is continuing, the
Pledgor shall be entitled (i) to exercise any and all voting and other
consensual rights pertaining to the Pledged Collateral or any part thereof for
any purpose not directly inconsistent with the express terms of this Agreement,
the Guarantee Agreement or the Asset Proceeds Note Indenture and (ii) to receive
any dividend or interest payment made in cash or other cash distribution made in
respect of the Pledged Collateral to the extent not directly inconsistent with
the express terms of this Agreement, the Guarantee Agreement or the Asset
Proceeds Note Indenture.
 
     (b) The Pledgor hereby irrevocably appoints the Collateral Agent as its
proxyholder with respect to the Pledged Shares and any other voting securities
forming a part of the Pledged Collateral with full power and authority to vote
such Pledged Shares and other voting securities and to act otherwise with
respect to such Pledged Shares and other voting securities on behalf of the
Pledgor, provided, that this proxy shall only be operative upon the occurrence
of an Event of Default and only for so long as such Event of Default continues.
 
     (c) The Pledgor hereby irrevocably appoints the Collateral Agent as the
Pledgor's attorney-in-fact, with full power of substitution and with authority
in the place and stead of the Pledgor and in its name or otherwise, from time to
time in the Collateral Agent's discretion, upon the occurrence and during the
continuance of an Event of Default to take any action and to execute any
instrument which the Collateral Agent may deem reasonably necessary or advisable
to accomplish the purposes of this Agreement, including, without limitation, (i)
to continue the perfection of the Security Interests; (ii) to sell or otherwise
transfer the relevant Pledged Collateral; (iii) to obtain the proceeds of and
adjust insurance claims with respect to any Pledged Collateral; (iv) to ask,
demand, collect, sue for, recover, compound, receive and give acquittance and
receipts for moneys due and to become due under or in respect of any of the
Pledged Collateral; (v) to receive, endorse, and collect any drafts or other
instruments, documents and chattel paper, in connection with clauses (iii) and
(iv) above; and (vi) to file any claims or take any action or institute any
proceedings which the Collateral Agent may deem necessary or desirable for the
collection of any of the Pledged Collateral or otherwise to
 
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enforce the rights of the Collateral Agent with respect to any of the Pledged
Collateral; provided, however, that the Collateral Agent shall be under no
obligation to take any action hereunder and, absent negligence or willful
misconduct, the Collateral Agent shall have no liability or responsibility for
any action taken or omission with respect thereto.
 
     Section 7.  Exercise of Remedies.
 
     (a) Asset Proceeds Note Trustee's Notice.  Upon notice by the Asset
Proceeds Note Trustee to the Collateral Agent that any Event of Default has
occurred and is continuing which has resulted in acceleration of the Secured
Obligations, the Collateral Agent shall, to the extent consistent with the
provisions of Section 7(c) below and the other provisions of this Agreement, as
soon as is practicable but in no event later than ten Business Days thereafter,
commence the taking of such actions toward collection or enforcement of this
Agreement as instructed by the Asset Proceeds Note Trustee.
 
     (b) Remedies Upon Acceleration.  If so instructed by the Asset Proceeds
Note Trustee (or if the Collateral Agent is the Asset Proceeds Note Trustee),
the Collateral Agent may (provided the acceleration of the Secured Obligations
has not been rescinded) exercise on behalf of the Holders of the Securities all
the rights of a secured party under the Uniform Commercial Code or other
applicable law with respect to the Pledged Collateral and, in addition, the
Collateral Agent may, without being required to give any notice, except as
herein provided or as may be required by mandatory provisions of law, sell,
assign, give an option or options to purchase, contract to sell or otherwise
dispose of and deliver said Pledged Collateral, or any part thereof, in one or
more parcels at public or private sale or sales, at any exchange, broker's board
or at any of the Collateral Agent's offices or elsewhere at such prices and on
such terms as it may deem best, for cash or on credit or for future delivery
without assumption of any credit risk. Any of the Holders of the Securities may
be the purchaser of any or all of the Pledged Collateral so sold at any public
sale (or, if the Pledged Collateral is of a type customarily sold in a
recognized market or is a type which is the subject of widely distributed
standard price quotations, at any private sale). The Collateral Agent is
authorized, in connection with any such sale which includes Pledged Shares, if
it deems it advisable so to do, (i) to restrict the prospective bidders on or
purchasers of any of the Pledged Shares to investors who will represent and
agree that they are purchasing for their own account for investment and not with
a view to the distribution or sale of any such Pledged Shares, (ii) to cause to
be placed on certificates for any or all of the Pledged Shares or on any other
securities pledged hereunder a legend to the effect that such security has not
been registered under the Securities Act of 1933, as amended (the "Securities
Act"), and may not be disposed of in violation of the provision of the
Securities Act, and (iii) to impose such other limitations or conditions in
connection with any such sale as the Collateral Agent deems necessary or
advisable in order to comply with the Securities Act or any other law. The
Pledgor covenants and agrees that it will execute and deliver such documents and
take such other action as the Collateral Agent reasonably deems necessary or
advisable in order that any such sale may be made in compliance with law;
provided that the Pledgor shall not be required to register any Pledged
Collateral under the Securities Act. Upon any such sale, the Collateral Agent
shall have the right to deliver, assign and transfer to the purchaser thereof
the Pledged Collateral so sold. Each purchaser at any such sale shall hold the
Pledged Collateral so sold absolutely and free from any claim or right of
whatsoever kind, including any equity or right of redemption of the Pledgor that
may be waived, and the Pledgor, to the extent permitted by law, hereby
specifically waives all rights of redemption, stay or appraisal that it has or
may have under any law now existing or hereafter adopted. The Collateral Agent
shall give the Pledgor not less than 10 days prior written notice of the time
and place of any sale or other intended disposition of any of the Pledged
Collateral (or such longer period as may be required by applicable law). The
Collateral Agent and the Pledgor agree that such notice constitutes "reasonable
notification" within the meaning of Section 9-504(3) of the Uniform Commercial
Code. The notice shall (1) in case of a public sale, state the time and place
fixed for such sale, (2) in case of sale at a broker's board or on a securities
exchange, state the board or exchange at which such sale is to be made and the
day on which the Pledged Collateral, or the portion thereof so being sold, will
first be offered for sale at such board or exchange, and (3) in the case of a
private sale, state the day after which such sale may be consummated. Any such
public sale shall be held at such time or times during ordinary business hours
and at such place or places as the Collateral Agent may fix in the notice of
such sale. At any such sale, the Pledged Collateral may be sold in one lot as an
entirety or in separate parcels, as the
 
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Collateral Agent may determine. The Collateral Agent shall not be obligated to
make any such sale pursuant to any such notice. The Collateral Agent may,
without notice or publication, adjourn from time to time by announcement at the
time and place fixed for the sale, and such sale may be made at any time or
place to which the same may be so adjourned. In case of any sale of all or any
part of the Pledged Collateral on credit or for future delivery, the Pledged
Collateral so sold may be retained by the Collateral Agent until the selling
price is paid by the purchaser thereof, but the Collateral Agent shall not incur
any liability in case of the failure of such purchaser to take up and pay for
the Pledged Collateral so sold and, in case of any such failure, such Pledged
Collateral may again be sold upon like notice. The Collateral Agent, instead of
exercising the power of sale herein conferred upon it, may proceed by a suit or
suits at law or in equity to foreclose the Security Interests and sell the
Pledged Collateral, or any portion thereof, under a judgment or decree of a
court or courts of competent jurisdiction.
 
     (c) Rights of Collateral Agent.
 
          (i) Right to Rely.  The Collateral Agent may rely on any document
     reasonably believed by it to be genuine and to have been signed or
     presented by the proper person. The Collateral Agent need not investigate
     any fact or matter stated in any such document. Before the Collateral Agent
     acts or refrains from acting it may consult with counsel and may require an
     Officer's Certificate or an Opinion of Counsel. The Collateral Agent shall
     not be liable for any action it takes or omits to take in good faith in
     reliance on any such certificate or opinion.
 
          (ii) Attorneys/Agents.  The Collateral Agent may act through its
     attorneys and agents and shall not be responsible for the misconduct or
     negligence of any attorney or agent appointed with due care.
 
          (iii) Good Faith Belief in Authority, Rights or Powers.  The
     Collateral Agent shall not be liable for any action it takes or omits to
     take in the good faith belief that such act or omission was authorized or
     within its rights or powers.
 
          (iv) No Investigation.  The Collateral Agent shall not be bound to
     make any investigation into the facts or matters stated in any resolution,
     certificate, statement, instrument, opinion, notice, request, direction,
     consent, order, bond, debenture or other paper or document, but the
     Collateral Agent, in its discretion, may (but shall not be obligated to)
     make such further inquiry or investigation into such facts or matters as it
     may see fit.
 
          (v) Obligation to Act upon Instructions.  The Collateral Agent shall
     be under no obligation to exercise any of the rights or powers vested in it
     by this Agreement at the request, order or direction of the Asset Proceeds
     Note Trustee, pursuant to the provisions of this Agreement, unless the
     Asset Proceeds Note Trustee shall have offered to the Collateral Agent
     reasonable security or indemnity against the costs, expenses and
     liabilities which may be incurred therein or thereby. Upon receipt of such
     reasonable security or indemnity, however, the Collateral Agent shall act
     upon the instructions of the Asset Proceeds Note Trustee, with respect to
     the Pledged Collateral, in accordance with the terms hereof.
     Notwithstanding the foregoing, the Collateral Agent shall not take or
     refrain from taking such action if so taking or refraining from taking such
     action, as the case may be, would violate applicable law or the terms of
     this Agreement, the Guarantee Agreement or the Asset Proceeds Note
     Indenture.
 
          (vi) Reasonable Care.  Beyond the exercise of reasonable care to
     assure the safe custody of the Pledged Collateral while held hereunder, the
     Collateral Agent shall have no duty or liability to preserve rights
     pertaining thereto, it being understood that the Collateral Agent shall not
     have responsibility for (a) ascertaining or taking action with respect to
     calls, conversions, exchanges, maturities, tenders or other matters
     relative to any Pledged Collateral, whether or not the Collateral Agent has
     or is deemed to have knowledge of such matters, unless reasonably requested
     in writing to do so by the Pledgor, or (b) taking any necessary steps
     (other than steps taken in accordance with the standard of care set forth
     above to maintain possession of the Pledged Collateral) to preserve rights
     against any parties with respect to any Pledged Collateral.
 
          (vii) Collateral Agent May Perform.  Upon the occurrence and during
     the continuance of an Event of Default hereunder (including an Event of
     Default resulting from a failure to perform any agreement
 
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     contained herein), if the Pledgor fails to perform any agreement contained
     herein, the Collateral Agent may (but shall not be obligated to) itself
     perform, or cause performance of, such agreement, and the expenses of the
     Collateral Agent incurred in connection therewith shall be payable by the
     Pledgor under Section 12.
 
     Section 8.  Priority of Payments.  The proceeds of any sale, disposition or
other realization of the Pledged Collateral by the Collateral Agent or its
agents or employees in the enforcement of its remedies as provided in Section 7
hereof shall be applied by the Collateral Agent in accordance with this Section
8:
 
          (i) first, to the payment of the reasonable costs and expenses of such
     sale or other realization, including reasonable compensation to agents and
     counsel for the Collateral Agent, and all expenses, liabilities and
     advances incurred or made by the Collateral Agent in connection therewith,
     and any other unreimbursed fees and expenses for which the Collateral Agent
     is to be reimbursed pursuant to Section 12 hereof;
 
          (ii) next, any surplus then remaining to the Asset Proceeds Note
     Trustee for (x) payment of all fees and expenses incurred by the Asset
     Proceeds Note Trustee in the course of the performance of its duties under
     this Agreement and the Guarantee Agreement but not reimbursed thereunder,
     if any, and then (y) payment of Guarantor Obligations in accordance with
     the Guarantee Agreement; and
 
          (iii) any surplus then remaining to the Pledgor.
 
     Section 9.  Appointment.  The Asset Proceeds Note Trustee, for the benefit
of the Holders of Securities, hereby designates and appoints the Collateral
Agent, and the Collateral Agent hereby accepts such appointment, to serve as
collateral agent upon the terms and conditions set forth herein. The Asset
Proceeds Note Trustee hereby irrevocably authorizes, and each Holder of
Securities shall be deemed irrevocably to have authorized, the Collateral Agent:
 
          (i) to take such action on behalf of Holders of the Securities under
     the provisions of this Agreement and to exercise such powers and to perform
     such duties hereunder as are specifically delegated to or required of the
     Collateral Agent by the terms hereof and such other powers as are
     reasonably incidental thereto; and
 
          (ii) during the continuance of an Event of Default, to exercise, on
     behalf of Holders of the Securities, all remedies available to the
     Collateral Agent and to initiate, prosecute and defend any and all legal
     proceedings against the Pledgor hereunder.
 
     Section 10.  Nature of Duties.  Neither the Collateral Agent nor any of its
officers, directors, employees or agents shall be liable for any claims, losses,
damages, penalties, actions, judgments, suits, liabilities, obligations, costs
or expenses of any kind or nature whatsoever resulting from any action the
Collateral Agent takes or omits to take under this Agreement or in connection
therewith, unless caused by its or their negligence, bad faith or willful
misconduct. The Collateral Agent may perform any of its duties hereunder by or
through its agents or employees.
 
     Section 11.  Lack of Reliance on the Collateral Agent.  The Collateral
Agent shall have no duty or responsibility, either initially or on a continuing
basis, to provide the Asset Proceeds Note Trustee or any Holder of Securities
with any credit or other information with respect to the Pledgor whether coming
into the Collateral Agent's possession before the issuance of the Securities or
at any time or times thereafter, except as otherwise provided in this Agreement.
 
     Section 12.  Compensation and Indemnification.
 
     (a) Compensation and Expenses.  The Pledgor agrees to pay to the Collateral
Agent, from time to time upon demand, reasonable compensation for the services
of the Collateral Agent hereunder and all fees, costs and expenses of the
Collateral Agent (including, without limitation, the reasonable fees and
disbursements of counsel) (A) arising in connection with the preparation,
execution, delivery, modification and termination of this Agreement, the
enforcement of any of the provisions hereof or the performance of its duties
hereunder, or (B) incurred or required to be advanced in connection with the
sale or other disposition of any Pledged
 
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Collateral pursuant to this Agreement and the preservation, protection,
enforcement or defense of the Collateral Agent's rights under this Agreement and
in and to the Pledged Collateral.
 
     (b) Stamp and Other Taxes.  The Pledgor hereby agrees to indemnify the
Collateral Agent, the Asset Proceeds Note Trustee and each Holder of Securities
for, and hold each of them harmless against, any present or future claim for
liability for any mortgage, sales, transfer, gains, stamp or other similar tax
and any penalties or interest with respect thereto, which may be assessed,
levied or collected by any jurisdiction in connection with this Agreement or any
Pledged Collateral.
 
     (c) Filing Fees, Excise Taxes, Etc.  The Pledgor hereby agrees to pay or to
reimburse the Collateral Agent for any and all amounts in respect of all search,
filing, recording and registration fees, taxes, excise taxes and other similar
imposts which may be payable or determined to be payable in respect of the
execution, delivery, performance and enforcement of this Agreement.
 
     (d) Indemnification of Collateral Agent.  The Pledgor shall indemnify the
Collateral Agent, its officers, directors, employees and agents for, and hold
each of them harmless against, any and all claims, demands, expenses (including
but not limited to reasonable compensation, disbursements and expenses of the
Collateral Agent's agents and counsel), losses or liabilities incurred by any of
them without negligence, bad faith or willful misconduct on its part, in any way
arising out of or in connection with the acceptance and administration of this
Agreement and its rights or duties hereunder. The Collateral Agent shall notify
the Pledgor promptly of any claim asserted against the Collateral Agent for
which indemnity is sought hereunder. The Pledgor shall defend any such claim and
the Collateral Agent shall provide reasonable cooperation at the Pledgor's
expense in such defense. The Collateral Agent may have separate counsel and the
Pledgor shall pay the reasonable fees and expenses of such counsel; provided,
that the Pledgor will not be required to pay such fees and expenses if it
assumes the Collateral Agent's defense and provides the Collateral Agent with an
Opinion of Counsel that there is no conflict of interest between the Pledgor and
the Collateral Agent in connection with such defense. The Pledgor need not pay
any amounts in respect of any settlement made without its written consent. The
Pledgor need not reimburse any expense or indemnify against any loss or
liability to the extent incurred by the Collateral Agent through its negligence,
bad faith or willful misconduct. When the Collateral Agent incurs expenses or
renders services after an Event of Default relating to certain events of
bankruptcy, reorganization or insolvency has occurred, such expenses and the
compensation for such services are intended to constitute expenses of
administration under any Bankruptcy Law.
 
     (e) Survival of Obligations.  All obligations set forth in this Section 12
shall survive the execution, delivery and termination of this Agreement and the
payment of all other Secured Obligations.
 
     (f) Lien on Pledged Collateral.  To secure the obligations of the Pledgor
set forth in this Section 12, the Collateral Agent shall have a lien pari passu
with the first priority liens of the Holders of the Securities on all Pledged
Collateral held or collected by the Collateral Agent in its capacity as such;
provided, however, that only such portion of said obligations as bears the same
ratio to the total amount of said obligations as the value of the remaining
Pledged Collateral bears to the total value of the Pledged Collateral may be
satisfied out of such portion of the Pledged Collateral.
 
     Section 13.  Collateral Agent's Dealings with the Pledgor.  The Collateral
Agent may accept deposits from, lend money to, or generally engage in any kind
of banking, trust or other business with the Pledgor or any of its subsidiaries,
in each case as if it were not the Collateral Agent hereunder.
 
     Section 14.  Securityholders.  The Collateral Agent may deem and treat the
registered owner of any of the Securities as the owner thereof for all purposes
hereunder. Any request, authority or consent of any person or entity who, at the
time of making such request or giving such authority or consent, is the
registered owner of any of the Securities, shall be conclusive and binding upon
any subsequent Holder of such Securities or other securities issued in exchange
therefor. The Asset Proceeds Note Trustee agrees that it will furnish to the
Collateral Agent lists of the registered owners of all Securities and the
outstanding principal amount thereof within 10 Business Days after any written
request therefor from the Collateral Agent. The Collateral Agent shall be
entitled to rely on such lists as being accurate and complete.
 
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     Section 15.  Resignation by or Removal of the Collateral Agent.
 
     (a) Resignation; Removal.  The Collateral Agent may resign from the
performance of all of its functions and duties hereunder at any time by giving
60 Business Days' prior written notice to the Pledgor and the Asset Proceeds
Note Trustee. Holders of      % of the outstanding Securities may at any time
remove the Collateral Agent by giving 20 Business Days' prior written notice to
the Collateral Agent, the Pledgor, and the Asset Proceeds Note Trustee. The
Pledgor may at any time remove the Collateral Agent, by giving 20 Business Days
prior written notice to the Collateral Agent and the Asset Proceeds Note Trustee
if, in the Pledgor's good faith judgment, the Collateral Agent's fees and
expense structure for acting as such hereunder become materially
non-competitive. Such resignation or removal shall take effect upon the
appointment of a successor Collateral Agent pursuant to Section 15(b) or (c)
below or as otherwise provided below.
 
     (b) Appointment of Successor.  Upon any such notice of resignation or
removal, the Asset Proceeds Note Trustee or, if the Collateral Agent is removed
by the Holders of the Securities the Holders of the outstanding Securities
removing the Collateral Agent, as the case may be, shall appoint a successor
Collateral Agent hereunder, which shall be an Acceptable Bank. If a successor
Collateral Agent shall not have been so appointed within the period specified in
Section 15(a) above, the Pledgor shall then appoint a successor Collateral Agent
which shall be an Acceptable Bank and which shall serve as the Collateral Agent
hereunder.
 
     (c) Effectiveness of Resignation or Removal.  A successor Collateral Agent
shall deliver a written acceptance of its appointment to the retiring Collateral
Agent, the Pledgor and the Asset Proceeds Note Trustee. Immediately thereafter,
the retiring Collateral Agent shall transfer all property held by it as
Collateral Agent to the successor Collateral Agent, subject to the Lien provided
in Section 12(f) hereof, shall execute and deliver to the successor Collateral
Agent such documents as are necessary to perfect or maintain the Security
Interests, including any documents necessary to assign or transfer all interests
of the retiring Collateral Agent in the Pledged Collateral to the successor
Collateral Agent, in the form or forms adequate for proper filing or recording
in such offices and such jurisdictions as are necessary to put the successor
Collateral Agent in the same position as was the retiring Collateral Agent with
respect to the Pledged Collateral. Thereupon, the resignation or removal of the
retiring Collateral Agent shall become effective and the successor Collateral
Agent shall have all the rights, powers and duties of the Collateral Agent under
this Agreement. A successor Collateral Agent shall give notice of its succession
to the Asset Proceeds Note Trustee.
 
     (d) Consolidation, Merger, Etc.  If the Collateral Agent consolidates with,
merges or converts into, or transfers all or substantially all of its corporate
trust business to, another corporation, the resulting, surviving or transferee
corporation without any further act, if such resulting, surviving or transferee
corporation is an Acceptable Bank, shall be the successor Collateral Agent. The
transferring, merging or converting Collateral Agent shall, at its own expense,
have all documents necessary to perfect or maintain the Security Interests,
including any documents necessary to assign or transfer all interests of the
transferring, merging or converting Collateral Agent in the Pledged Collateral,
executed and delivered to it in the form or forms adequate for proper filing or
recording in such offices and such jurisdictions as are necessary to put the
successor Collateral Agent in the same position as the transferring, merging or
converting Collateral Agent with respect to the Pledged Collateral.
 
     (e) Compensation Continuing.  Any person or entity acting as Collateral
Agent shall continue to be entitled to receive compensation as provided in
Section 12 hereof so long as such person or entity acts as Collateral Agent
hereunder.
 
     Section 16.  Collateral Account.  The Collateral Agent shall establish an
account in its name as Collateral Agent under this Agreement, on behalf of the
Holders of the Securities, and shall maintain such accounts and administer the
funds in such accounts in accordance with the terms hereof.
 
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     Section 17.  Notices.  Any notices or other communications required or
permitted hereunder shall be in writing, and shall be sufficiently given if made
by hand delivery, by telex, by telecopier or registered or certified mail,
postage prepaid, return receipt requested, addressed as follows:
 
     To the Pledgor:
 
          with a copy to:
 
     To the Collateral Agent:
 
     To the Asset Proceeds Note Trustee:
 
Any party hereto may by notice to each other party designate such additional or
different addresses as shall be furnished in writing by such party. Any notice
or communication to any party hereto shall be deemed to have been given or made
as of the date so delivered, if personally delivered; when answered back, if
telexed; when receipt is acknowledged by telecopier confirmation, if telecopied;
and five calendar days after mailing if sent by registered or certified mail
(except that a notice of change of address shall not be deemed to have been
given until actually received by the addressee). A copy of any notice given
under this Agreement to any party shall also be given to each other party
hereto. Pursuant to and not in limitation of the preceding sentence, any party
hereto may give notice to the Holders of Securities at the addresses set forth
for them in the register kept by the Registrar under the Asset Proceeds Note
Indenture.
 
     Section 18.  Binding Agreement; Assignment; Obligations Several.  This
Agreement shall be binding upon and inure to the benefit of the parties hereto
and their respective successors and permitted assigns, including, without
limitation, and without the need for an express assignment or amendment,
subsequent Holders of Securities (whether or not the Securities held by such
persons is outstanding as of the date hereof or issued hereafter). This
Agreement may not be assigned by the Pledgor; provided, however, that this
Agreement shall be deemed to be automatically assigned by the Pledgor to any
person which is a successor to the Pledgor, in accordance with the terms of the
Guarantee Agreement. This Agreement shall be deemed to be automatically assigned
by the Collateral Agent to any person who succeeds to the Collateral Agent in
accordance with Section 15 hereof, and such assignee shall have all rights and
powers of, and act as, the Collateral Agent hereunder, and this Agreement shall
be deemed to be automatically assigned by the Asset Proceeds Note Trustee to any
person who succeeds it in accordance with the terms of the Asset Proceeds Note
Indenture. Each Holder of the Securities, by its acceptance of any Securities,
consents to and agrees to be bound by the provisions hereof.
 
     Section 19.  Governing Law.  This Agreement shall be construed in
accordance with and governed by the laws of the State of New York without regard
to its conflict of law principles, except as otherwise required by mandatory
provisions of law and except to the extent that remedies provided by the laws of
any jurisdiction other than New York are governed by the laws of such
jurisdiction.
 
     Section 20.  Effectiveness; Termination.  This Agreement shall become
effective on the Effective Date. Upon the payment in full of all the Secured
Obligations (or their reduction to $0 or less in accordance with the terms of
the Guarantee Agreement), the Security Interests and this Agreement shall
terminate and all rights to the Pledged Collateral shall revert to the Pledgor.
Upon termination of this Agreement, the Collateral Agent shall reassign and
redeliver to the Pledgor, the Pledged Collateral hereunder which has not been
sold, disposed of, retained or applied by the Collateral Agent in accordance
with the terms hereof. Such reassignment and redelivery shall be without
warranty by or recourse to the Collateral Agent, and shall be at the expense of
the Pledgor. Thereafter, this Agreement shall not constitute a lien upon or
grant any security interest to any person in any of the Pledged Collateral, and
the Collateral Agent shall, at the Pledgor's expense, deliver to the Pledgor (i)
written acknowledgement thereof and cancellation of this Agreement and (ii) such
other documents as are reasonably requested by the Pledgor, in a form or forms
as reasonably requested by the Pledgor and adequate for proper filing or
recording in such offices and such jurisdictions as the Pledgor reasonably deems
necessary to release the Security Interests.
 
                                      R-10
<PAGE>   344
 
     Section 21.  Amendments, Supplements and Waivers.
 
     (a) With the written consent of the Asset Proceeds Note Trustee or      %
of the Holders of the outstanding Securities, either the Collateral Agent or the
Pledgor may, from time to time, enter into written supplemental agreements for
the purpose of amending, modifying or waiving any provision of this Agreement or
changing in any manner the rights of the Collateral Agent, the Asset Proceeds
Note Trustee and the Pledgor hereunder. Any such supplemental agreement shall be
binding upon the Pledgor, the Collateral Agent, the Asset Proceeds Note Trustee,
all Holders of Securities, and their respective successors and permitted
assigns. The Collateral Agent shall not enter into any such supplemental
agreement unless it shall have received an Officer's Certificate of the Pledgor
and an Opinion of Counsel to the effect that the execution, delivery and
performance of such supplemental agreement will not result in an Event of
Default.
 
     (b) Notwithstanding the provisions of Section 21(a) above, the Collateral
Agent and the Pledgor may, at any time and from time to time, without the
consent of the Asset Proceeds Note Trustee or any Holders of Securities, enter
into agreements supplemental hereto or additional agreements or grant any waiver
hereunder, in form satisfactory to the Collateral Agent, in which a security
interest is granted in favor of the Collateral Agent for the benefit of the
Holders of the Securities or which:
 
          (i) adds to the covenants of the Pledgor for the benefit of the
     Holders of the Securities or the Asset Proceeds Note Trustee, or surrenders
     any right or power herein conferred upon the Pledgor; or
 
          (ii) cures any ambiguity, defect or inconsistency in this Agreement or
     makes any other change which does not adversely effect the rights of any
     Holder of any Securities hereunder.
 
Notice of any amendment, modification or waiver to this Agreement or of any
additional or supplemental agreements entered into in accordance with Section
21(a) or (b) above shall be given by the Collateral Agent to the Asset Proceeds
Note Trustee, and the Asset Proceeds Note Trustee shall give such notice to the
Holders of Securities.
 
     Section 22.  Inconsistent Provisions.  If any provision of this Agreement
shall be inconsistent with, or contrary to, any provision of the Guarantee
Agreement, such provision of the Guarantee Agreement shall be controlling and
shall supersede such inconsistent provisions hereof to the extent necessary to
give full effect to such provision of the Guarantee Agreement.
 
     Section 23.  Severability.  In the event that any provision contained in
this Agreement shall for any reason be held to be illegal or invalid under the
laws of any jurisdiction, such illegality or invalidity shall in no way impair
the effectiveness of any other provision hereof or of such provision under the
laws of any other jurisdiction; provided, that in the construction and
enforcement of such provision under the laws of the jurisdiction in which such
holding of illegality or invalidity exists, and to the extent only of such
illegality or invalidity, this Agreement shall be construed and enforced as
though such illegal or invalid provision had not been contained herein.
 
     Section 24.  Headings.  Section headings used herein are inserted for
convenience only and shall not in any way affect the meaning or construction of
any provision of this Agreement.
 
     Section 25.  Counterparts.  This Agreement may be executed in any number of
counterparts, each of which when so executed and delivered shall be an original,
and all of which shall together constitute one and the same instrument. A
complete set of counterparts shall be lodged with the Collateral Agent and the
Asset Proceeds Note Trustee.
 
     Section 26.  Exhibits and Schedules.  Exhibits and Schedules attached
hereto shall be deemed part of this Agreement of fully as if set forth in full
herein.
 
                                      R-11
<PAGE>   345
 
     IN WITNESS WHEREOF, the Collateral Agent, the Asset Proceeds Note Trustee
and the Pledgor have caused this Agreement to be executed and delivered by their
respective officers thereunto duly authorized as of the day and year first above
written.
 
                                          -------------------------------- BANK,
                                          as Asset Proceeds Note Trustee
 
                                          By:
                                              -------------------------------
                                          Its:
                                              -------------------------------

                                          -------------------------------- BANK,
                                          as Collateral Agent
 
                                          By:
                                              -------------------------------
                                          Its:
                                              -------------------------------

                                          LONE STAR INDUSTRIES, INC.
 
                                          By:
                                              -------------------------------
                                          Its:
                                              -------------------------------

                                      R-12
<PAGE>   346
 
                                   SCHEDULE I
 
                                 PLEDGED SHARES
 
                                      RA-1
<PAGE>   347
 
                                   EXHIBIT S
<PAGE>   348
 
                                                                       EXHIBIT S
 
                               WARRANT AGREEMENT
 
     WARRANT AGREEMENT dated             , 1993 between LONE STAR INDUSTRIES,
INC. (the "Company"), and                , as Warrant Agent (the "Warrant
Agent").
 
     The Company proposes to issue Common Stock Purchase Warrants, as
hereinafter described (the "Warrants"), to purchase an aggregate of 3,333,333
shares (subject to adjustment as provided herein) of its Common Stock, $1.00 par
value (the "Common Stock"), (the shares of Common Stock issuable on exercise of
the Warrants being referred to herein as the "Warrant Shares"), pursuant to the
Amended Consolidated Plan of Reorganization of the Company. Each Warrant shall
entitle the holder thereof to purchase one share (subject to adjustment as
provided herein) of Common Stock.
 
     The Company wishes the Warrant Agent to act on behalf of the Company and
the Warrant Agent is willing to act in connection with the issuance, separation,
transfer, exchange and exercise of Warrants.
 
     In consideration of the foregoing and for the purposes of defining the
terms and provisions of the Warrants and the respective rights and obligations
thereunder of the Company and the registered owners of the Warrants (the
"Holders"), the Company and the Warrant Agent hereby agree as follows:
 
     SECTION 1.  Appointment of Warrant Agent.  The Company hereby appoints the
Warrant Agent to act as agent for the Company in accordance with the
instructions set forth in this Agreement, and the Warrant Agent hereby accepts
such appointment.
 
  SECTION 2.  Transferability and Form of Warrant.
 
     2.1  Registration.  The Warrants shall be numbered and shall be registered
in a Warrant Register as they are issued. The Company and the Warrant Agent
shall be entitled to treat the Holder of any Warrant as the owner in fact
thereof for all purposes and shall not be bound to recognize any equitable or
other claim to or interest in such Warrant on the part of any other person.
 
     2.2  Transfer.  The Warrants shall be transferable only on the books of the
Company maintained at the principal office of the Warrant Agent upon delivery
thereof duly endorsed by the Holder or by his duly authorized attorney or
representative, or accompanied by proper evidence of succession, assignment or
authority to transfer. In all cases of transfer by an attorney, the original
power of attorney, duly approved, or a copy thereof, duly certified, shall be
deposited and remain with the Warrant Agent. In case of transfer by executors,
administrators, guardians or other legal representatives, duly authenticated
evidence of their authority shall be produced, and may be required to be
deposited and remain with the Warrant Agent in its discretion. Upon any
registration of transfer, the Warrant Agent shall countersign and deliver a new
Warrant or Warrants to the persons entitled thereto.
 
     2.3  Form of Warrant.  The text of the Warrant and the Purchase Form shall
be substantially as set forth in Exhibit A attached hereto. The price per
Warrant Share and the number of Warrant Shares issuable upon exercise of each
Warrant are subject to adjustment upon the occurrence of certain events, all as
hereinafter provided. The Warrant shall be executed on behalf of the Company by
its Chairman of the Board, President or one of its Vice Presidents, under its
corporate seal reproduced thereon attested by its Secretary or an Assistant
Secretary. The signature of any such officers on the Warrants may be manual or
facsimile.
 
     Warrants bearing the manual or facsimile signature of individuals who were
at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any one of them shall have ceased to
hold such office prior to the delivery of such Warrants or did not hold such
offices on the date of this Agreement.
 
     Warrants shall be dated as of the date of countersignature thereof by the
Warrant Agent either upon initial issuance or upon division, exchange,
substitution or transfer.
 
     SECTION 3.  Countersignature of Warrants.  The Warrants shall be
countersigned by the Warrant Agent (or any successor to the Warrant Agent then
acting as warrant agent under this Agreement) and shall
 
                                       S-1
<PAGE>   349
 
not be valid for any purpose unless so countersigned. Warrants may be
countersigned, however, by the Warrant Agent (or by its successor as warrant
agent hereunder) and may be delivered by the Warrant Agent, notwithstanding that
the persons whose manual or facsimile signatures appear thereon as proper
officers of the Company shall have ceased to be such officers at the time of
such countersignature, issuance or delivery. The Warrant Agent shall, upon
written instructions of the Chairman of the Board, President, one of the Vice
Presidents or the Secretary of the Company, countersign, issue and deliver
Warrants entitling the Holders thereof to purchase not more than 3,333,333
Warrant Shares (subject to Section 7 hereof and adjustment pursuant to Section
10 hereof) and shall countersign and deliver Warrants as otherwise provided in
this Agreement.
 
     SECTION 4.  Exchange of Warrant Certificates.  Each Warrant certificate may
be exchanged for another certificate or certificates entitling the Holder
thereof to purchase a like aggregate number of Warrant Shares as the certificate
or certificates surrendered then entitle such Holder to purchase. Any Holder
desiring to exchange a Warrant certificate or certificates shall make such
request in writing delivered to the Warrant Agent, and shall surrender, properly
endorsed, the certificate or certificates to be so exchanged. Thereupon, the
Warrant Agent shall countersign and deliver to the person entitled thereto a new
Warrant certificate or certificates, as the case may be, as so requested.
 
     SECTION 5.  Term of Warrants; Exercise of Warrants.
 
     5.1  Term of Warrants.  Subject to the terms of this Agreement, each Holder
shall have the right, which may be exercised until the close of business on
December 31, 1998, to purchase from the Company the number of fully paid and
nonassessable Warrant Shares which the Holder may at the time be entitled to
purchase on exercise of such Warrants.
 
     5.2  Exercise of Warrants.  Warrants may only be exercised for the purchase
of whole Warrant Shares. Warrants may be exercised upon surrender to the Company
at the principal office of the Warrant Agent, of the certificate or certificates
evidencing the Warrants to be exercised (except as otherwise provided below),
together with the form of election to purchase on the reverse thereof duly
filled in and signed, and upon payment to the Warrant Agent for the account of
the Company of the Warrant Price (as defined in and determined in accordance
with the provisions of Sections 9 and 10 hereof), for the number of Warrant
Shares in respect of which such Warrants are then exercised. Payment of the
aggregate Warrant Price shall be made in cash or by certified or official bank
check.
 
     Subject to Section 6 hereof, upon such surrender of Warrants and payment of
the Warrant Price as aforesaid, the Company shall issue and cause to be
delivered with all reasonable dispatch to or upon the written order of the
Holder, and in such name or names as the Holder may designate, a certificate or
certificates for the number of full Warrant Shares so purchased upon the
exercise of such Warrants, together with cash, as provided in Section 12 hereof,
in respect of any fractional Warrant Shares otherwise issuable upon such
exercise of Warrants. Such certificate or certificates shall be deemed to have
been issued and any person so designated to be named therein shall be deemed to
have become a holder of record of such Warrant Shares as of the date of the
surrender of such Warrants and payment of such Warrant Price, as aforesaid;
provided, however, that if, at the date of surrender of such Warrants and
payment of such Warrant Price, the transfer books for the Warrant Shares or
other class of stock purchasable upon the exercise of such Warrants shall be
closed, the certificates for the Warrant Shares in respect of which such
Warrants are then exercised shall be issuable as of the date on which such books
shall next be opened and until such date the Company shall be under no duty to
deliver any certificate for such Warrant Shares; provided further, however, that
the transfer books of record, unless otherwise required by law, shall not be
closed at any one time for a period longer than twenty days. The rights of
purchase represented by the Warrants shall be exercisable, at the election of
the Holders thereof, either in full or from time to time in part and, in the
event that a certificate evidencing Warrants is exercised in respect of less
than all of the Warrant Shares purchasable on such exercise at any time prior to
the date of expiration of the Warrants, a new certificate evidencing the
remaining Warrant or Warrants will be issued, and the Warrant Agent is hereby
irrevocably authorized to countersign and to deliver the required new Warrant
certificate or certificates pursuant to the provisions of this Section and of
 
                                       S-2
<PAGE>   350
 
Section 3 hereof and the Company, whenever required by the Warrant Agent, will
supply the Warrant Agent with Warrant certificates duly executed on behalf of
the Company for such purpose.
 
     SECTION 6.  Payment of Taxes.  The Company will pay all documentary stamp
taxes, if any, attributable to the initial issuance of Warrant Shares upon the
exercise of Warrants; provided, however, that the Company shall not be required
to pay any tax or taxes which may be payable in respect of any transfer involved
in the issue or delivery of any Warrants or certificates for Warrant Shares in a
name other than that of the registered Holder of Warrants in respect of which
such Warrant Shares are issued.
 
     SECTION 7.  Mutilated or Missing Warrants.  In case any of the certificates
evidencing the Warrants shall be mutilated, lost, stolen or destroyed, the
Company may in its discretion issue, and the Warrant Agent shall countersign and
deliver in exchange and substitution for and upon cancellation of the mutilated
Warrant certificate, or in lieu of and substitution for the Warrant certificate
lost, stolen or destroyed, a new Warrant certificate of like tenor and
representing an equivalent right or interest; but only upon receipt of evidence
satisfactory to the Company and the Warrant Agent of such loss, theft or
destruction of such Warrant and indemnity, if requested, also satisfactory to
them. An applicant for such a substitute Warrant certificate shall also comply
with such other reasonable regulations and pay such other reasonable charges as
the Company or the Warrant Agent may prescribe.
 
     SECTION 8.  Reservation of Warrant Shares: Purchase of Warrants.
 
     8.1  Reservation of Warrant Shares.  There have been reserved, and the
Company shall at all times keep reserved, out of its authorized Common Stock, a
number of shares of Common Stock sufficient to provide for the exercise of the
rights of purchase represented by the outstanding Warrants. The Transfer Agent
for the Common Stock and every subsequent transfer agent for any shares of the
Company's capital stock issuable upon the exercise of any of such rights of
purchase will be irrevocably authorized and directed at all times to reserve
such number of authorized shares as shall be requisite for such purpose. The
Company will keep a copy of this Agreement on file with the Transfer Agent or
its successors and with every subsequent transfer agent for any shares of the
Company's capital stock issuable upon the exercise of the rights of purchase
represented by the Warrants. The Warrant Agent is hereby irrevocably authorized
to requisition from time to time from the Transfer Agent or its successors the
stock certificates required to honor outstanding Warrants upon exercise thereof
in accordance with the terms of this Agreement. The Company will supply such
Transfer Agent or its successors with duly executed stock certificates for such
purposes and will provide or otherwise make available any cash which may be
payable as provided in Section 12 hereof. All Warrants surrendered in the
exercise of the rights thereby evidenced shall be cancelled by the Warrant Agent
and shall thereafter be delivered to the Company.
 
     8.2  Purchase of Warrants by the Company.  The Company shall have the
right, except as limited by law, other agreement or herein, to purchase or
otherwise acquire Warrants at such times, in such manner and for such
consideration as it may deem appropriate.
 
     8.3  Call of Warrants by the Company.  The Company shall have the right to
redeem any or all of the Warrants, at $0.01 per Warrant, subject to adjustment
in accordance with Section 10 hereof, on or after December 31, 1996, in the
event that the closing bid price of the Common Stock (if then traded in the
over-the-counter market) or the closing price of the Common Stock (if then
traded on the National Association of Securities Dealers Automated Quotations
System ("NASDAQ") or on a national securities exchange) for any thirty
consecutive trading days ending the day prior to the date of the notice of
redemption has exceeded $23.70. If less than all the Warrants are to be
redeemed, the Warrant Agent shall select the Warrants to be redeemed from those
then outstanding, by a method the Warrant Agent considers fair and appropriate.
 
     Notice of the redemption shall be mailed not less than thirty days prior to
the date scheduled for such redemption (the "Call Date") and shall be given to
the Warrant Agent and the Holders in accordance with the provisions of Section
19 hereof. At the same time that the notice of redemption is mailed to the
Holders pursuant to this Section, notice shall also be given by publication, at
least once in one or more newspapers printed in the English language and in
general circulation in The City of New York, New York, and such notice shall
state the date, place and price of such redemption. Each Holder shall continue
to have the right to
 
                                       S-3
<PAGE>   351
 
exercise Warrants until 5:00 P.M., New York time, on the first day immediately
preceding the Call Date on which the Warrant Agent is open for the transaction
of business. Not later than two business days after the Call Date, the Company
shall deposit with the Warrant Agent funds sufficient to purchase all of the
Warrants called for redemption pursuant to this Section 8.3 which are
outstanding at 5:00 P.M., New York time, on the date when the right to exercise
expires.
 
     8.4  Cancellation of Warrants.  In the event the Company shall purchase or
otherwise acquire Warrants, the same shall thereupon be delivered to the Warrant
Agent and be cancelled by it and retired. The Warrant Agent shall cancel any
Warrants surrendered for exchange, substitution, transfer or exercise in whole
or in part.
 
     SECTION 9.  Warrant Price.  The price per share at which Warrant Shares
shall be purchasable upon exercise of Warrants (the "Warrant Price") shall be
$19.75, subject to adjustment pursuant to Section 10 hereof.
 
     SECTION 10.  Adjustment of Warrant Price and Number of Warrant Shares.  The
number and kind of securities purchasable upon the exercise of each Warrant and
the Warrant Price shall be subject to adjustment from time to time upon the
happening of certain events, as hereinafter defined.
 
     10.1  Mechanical Adjustments.  The number of Warrant Shares purchasable
upon the exercise of each Warrant and the Warrant Price shall be subject to
adjustment as follows:
 
          (a) In case the Company shall (i) pay a dividend in shares of Common
     Stock or make a distribution in shares of Common Stock, (ii) subdivide its
     outstanding shares of Common Stock, (iii) combine its outstanding shares of
     Common Stock into a smaller number of shares of Common Stock or (iv) issue
     by reclassification or recapitalization of its shares of Common Stock other
     securities of the Company, the number of Warrant Shares purchasable upon
     exercise of each Warrant immediately prior thereto shall be adjusted so
     that the Holder of each Warrant shall be entitled to receive the kind and
     number of Warrant Shares or other securities of the Company which he or she
     would have owned or have been entitled to receive after the happening of
     any of the events described above, had such Warrant been exercised
     immediately prior to the happening of such event or any record date with
     respect thereto. An adjustment made pursuant to this paragraph (a) shall
     become effective immediately after the effective date of such event
     retroactive to the record date, if any, for such event.
 
          (b) In case the Company shall distribute to all holders of its shares
     of Common Stock evidences of its indebtedness or assets (excluding cash
     dividends or distributions payable out of consolidated earnings or earned
     surplus and dividends or distributions referred to in paragraph (a) above)
     or rights, options or warrants or convertible or exchangeable securities
     containing the right to subscribe for or purchase shares of Common Stock,
     then in each case the number of Warrant Shares thereafter purchasable upon
     the exercise of each Warrant shall be determined by multiplying the number
     of Warrant Shares theretofore purchasable upon the exercise of each
     Warrant, by a fraction, of which the numerator shall be the then current
     market price per share of Common Stock (as defined in Section 10.1(c)
     hereof) on the date of such distribution, and of which the denominator
     shall be the then current market price per share of Common Stock, less the
     then fair value (as determined by the Board of Directors of the Company,
     whose determination shall be conclusive) of the portion of the assets or
     evidences of indebtedness so distributed or of such subscription rights,
     options or warrants, or of such convertible or exchangeable securities
     applicable to one share of Common Stock. Such adjustment shall be made
     whenever any such distribution is made, and shall become effective on the
     date of distribution retroactive to the record date for the determination
     of stockholders entitled to receive such distribution.
 
          (c) For the purpose of any computation under Section 10.1(b) and
     Section 12 hereof, the current market price per share of Common Stock at
     any date shall be the average representative closing bid price of the
     Common Stock (if then traded in the over-the-counter market) or the average
     closing price of the Common Stock (if then traded on NASDAQ's National
     Market System or on a national securities exchange) for the five
     consecutive trading days ending the day prior to the date as of which such
     computation is made.
 
                                       S-4
<PAGE>   352
 
          (d) No adjustment in the number of Warrant Shares purchasable
     hereunder shall be required unless such adjustment would require an
     increase or decrease of at least 1% in the number of Warrant Shares
     purchasable upon the exercise of each Warrant; provided, however, that any
     adjustments which by reason of this Section 10.1(d) are not required to be
     made shall be carried forward and taken into account in any subsequent
     adjustment. All calculations shall be made to the nearest one-thousandth of
     a share.
 
          (e) Whenever the number of Warrant Shares purchasable upon the
     exercise of each Warrant is adjusted, as herein provided, the Warrant Price
     payable upon exercise of each Warrant shall be adjusted by multiplying such
     Warrant Price immediately prior to such adjustment by a fraction, of which
     the numerator shall be the number of Warrant Shares purchasable upon the
     exercise of each Warrant immediately prior to such adjustment, and of which
     the denominator shall be the number of Warrant Shares so purchasable
     immediately thereafter.
 
          (f) For the purpose of this Section 10.1, the term "shares of Common
     Stock" shall mean (i) the class of stock designated as the Common Stock of
     the Company at the date of this Agreement, or (ii) any other class of stock
     resulting from successive changes or reclassification of such shares
     consisting solely of changes in par value, or from par value to no par
     value, or from no par value to par value. In the event that at any time, as
     a result of an adjustment made pursuant to paragraph (a) above, the Holders
     shall become entitled to purchase any shares of the Company other than
     shares of Common Stock, thereafter the number of such other shares so
     purchasable upon exercise of each Warrant and the Warrant Price of such
     shares shall be subject to adjustment from time to time in a manner and on
     terms as nearly equivalent as practicable to the provisions with respect to
     the Warrant Shares contained in Section 10.1(a) through Section 10.1(e),
     inclusive, above, and the provisions of Section 5 and Sections 10.2 and
     10.3 hereof, with respect to the Warrant Shares, shall apply on like terms
     to any such other shares.
 
     10.2  Voluntary Adjustment by the Company.  The Company may at its option,
at any time during the term of the Warrants, reduce the then current Warrant
Price to any amount deemed appropriate by the Board of Directors of the Company.
 
     10.3  Notice of Adjustment.  Whenever the number of Warrant Shares
purchasable upon the exercise of each Warrant or the Warrant Price of such
Warrant Shares is adjusted, as herein provided, the Company shall cause the
Warrant Agent promptly to mail by first class mail, postage prepaid, to each
Holder notice of such adjustment or adjustments and shall deliver to the Warrant
Agent a certificate of a firm of independent public accountants selected by the
Board of Directors of the Company (who may be the regular accountants employed
by the Company) setting forth the number of Warrant Shares purchasable upon the
exercise of each Warrant and the Warrant Price of such Warrant Shares after such
adjustment, setting forth a brief statement of the facts requiring such
adjustment and setting forth the computation by which such adjustment was made.
Such certificate shall be conclusive of the correctness of such adjustment. The
Warrant Agent shall be entitled to rely on such certificate and shall be under
no duty or responsibility with respect to any such certificate, except to
exhibit the same, from time to time, to any Holder desiring an inspection
thereof during reasonable business hours. The Warrant Agent shall not at any
time be under any duty or responsibility to any Holders to determine whether any
facts exist which may require any adjustment of the Warrant Price or the number
of Warrant Shares or other stock or property purchasable on exercise thereof, or
with respect to the nature or extent of any such adjustment when made, or with
respect to the method employed in making such adjustment.
 
     10.4  No Adjustment for Dividends.  Except as provided in subsection 10.1,
no adjustment in respect of any dividend shall be made during the term of a
Warrant or upon the exercise of a Warrant.
 
     10.5  Preservation of Purchase Rights Upon Consolidation, etc.  In case of
any consolidation of the Company with or merger of the Company into another
corporation or in case of any sale or conveyance to another corporation of the
property of the Company as an entirety or substantially as an entirety, the
Company or such successor or purchasing corporation, as the case may be, shall
execute with the Warrant Agent an agreement that each Holder shall have the
right thereafter upon payment of the Warrant Price in effect
 
                                       S-5
<PAGE>   353
 
immediately prior to such action to purchase upon exercise of each Warrant the
kind and amount of shares and other securities and property which he would have
owned or have been entitled to receive after the happening of such
consolidation, merger, sale or conveyance had such Warrant been exercised
immediately prior to such action. The Company shall mail by first class mail,
postage prepaid, to each Holder, notice of the execution of any such agreement.
Such agreement shall provide for adjustments, which shall be as nearly
equivalent as may be practicable to the adjustments provided for in this Section
10. The provisions of this Section 10.5 shall similarly apply to successive
consolidations, mergers, sales or conveyances. The Warrant Agent shall be under
no duty or responsibility to determine the correctness of any provisions
contained in any such agreement relating either to the kind or amount of shares
of stock or other securities or property receivable upon exercise of Warrants or
with respect to the method employed and provided therein for any adjustments.
 
     10.6  Statement on Warrants.  Irrespective of any adjustments in the
Warrant Price or the number or kind of shares purchasable upon the exercise of
the Warrants, Warrant certificates theretofore or thereafter issued may continue
to express the same price and number and kind of shares as are stated in the
Warrant certificates initially issuable pursuant to this Agreement.
 
     SECTION 11.  Expiration of Warrants.  At 5:00 p.m. E.S.T, on December 31,
1998, all outstanding Warrants shall become void and all rights of all holders
thereof and thereunder and under this Agreement shall cease.
 
     SECTION 12.  Fractional Interests.  The Company shall not be required to
issue fractional Warrant Shares on the exercise of Warrants. The number of full
Warrant Shares which shall be issuable upon the exercise of Warrants shall be
computed on the basis of the aggregate number of Warrant Shares purchasable on
exercise of the Warrants so presented. If any fraction of a Warrant Share would,
except for the provisions of this Section 12, be issuable on the exercise of any
Warrant (or specified portion thereof), the Company shall pay an amount in cash
equal to the then current market price per Warrant Share (as defined in Section
10.1(c) above) multiplied by such fraction.
 
     SECTION 13.  No Rights as Stockholders; Notices to Holders.  Nothing
contained in this Agreement or in any of the Warrants shall be construed as
conferring upon the Holders or their transferees the right to vote or to receive
dividends or to consent to or receive notice as stockholders in respect of any
meeting of stockholders for the election of directors of the Company or any
other matter, or any rights whatsoever as stockholders of the Company. If,
however, at any time prior to the expiration of the Warrants and prior to their
exercise, any of the following events shall occur:
 
          (a) the Company shall declare any dividend payable in any securities
     upon its shares of Common Stock or make any distribution (other than a cash
     dividend) to the holders of its shares of Common Stock; or
 
          (b) the Company shall offer or grant to the holders of its shares of
     Common Stock any additional shares of Common Stock or securities
     convertible into shares of Common Stock or any right to subscribe thereto;
     or
 
          (c) a dissolution, liquidation or winding up of the Company (other
     than in connection with a consolidation, merger, or sale of all or
     substantially all of its property, assets, and business as an entirety)
     shall be proposed;
 
     then in any one or more of said events, the Company shall (a) give notice
     in writing of such event to the Warrant Agent and the Holders as provided
     in Section 19 hereof and (b) cause notice of such event to be published
     once in one or more newspapers printed in the English language and in
     general circulation in New York, New York, such giving of notice and
     publication to be completed at least fifteen days prior to the date fixed
     as a record date or the date of closing the transfer books for the
     determination of the stockholders entitled to such dividend, distribution,
     or subscription rights, or for the determination of stockholders entitled
     to vote on such proposed dissolution, liquidation or winding up. Such
     notice shall specify such record date or the date of closing the transfer
     books, as the case may be. Failure to publish or mail such notice or any
     defect therein or in the publication or mailing thereof shall not affect
     the validity
 
                                       S-6
<PAGE>   354
 
     of any action taken in connection with such dividend, distribution or
     subscription rights, or proposed dissolution, liquidation or winding up.
 
     SECTION 14.  Disposition of Proceeds on Exercise of Warrants; Inspection of
Warrant Agreement. The Warrant Agent shall account promptly to the Company with
respect to Warrants exercised and concurrently pay the Company all monies
received by the Warrant Agent for the purchase of the Warrant Shares through the
exercise of such Warrants.
 
     The Warrant Agent shall keep copies of this Agreement and any notices given
or received hereunder available for inspection by the Holders during normal
business hours at its principal office in New York, New York. The Company shall
supply the Warrant Agent from time to time with such numbers of copies of this
Agreement as the Warrant Agent may request.
 
     SECTION 15.  Merger or Consolidation or Change of Name of Warrant
Agent.  Any corporation into which the Warrant Agent may be merged or with which
it may be consolidated, or any corporation resulting from any merger or
consolidation to which the Warrant Agent shall be a party, shall be the
successor to the Warrant Agent hereunder without the execution or filing of any
paper or any further act on the part of any of the parties hereto, provided that
such corporation would be eligible for appointment as a successor Warrant Agent
under the provisions of Section 17 hereof. In case at the time such successor to
the Warrant Agent shall succeed to the agency created by this Agreement, any of
the Warrants shall have been countersigned but not delivered, any such successor
to the Warrant Agent may adopt the countersignature of the original Warrant
Agent and deliver such Warrants so countersigned; and in case at that time any
of the Warrants shall not have been countersigned, any successor to the Warrant
Agent may countersign such Warrants either in the name of the predecessor
Warrant Agent or in the name of the successor Warrant Agent; and in all such
cases Warrants shall have the full force provided in the Warrants and in this
Agreement.
 
     In case at any time the name of the Warrant Agent shall be changed and at
such time any of the Warrants shall have been countersigned but not delivered,
the Warrant Agent may adopt the countersignatures under its prior name and
deliver such Warrants so countersigned; and in case at that time any of the
Warrants shall not have been countersigned, the Warrant Agent may countersign
such Warrants either in its prior name or in its changed name; and in all such
cases such Warrants shall have the full force provided in the Warrants and in
this Agreement.
 
     SECTION 16.  Concerning the Warrant Agent.  The Warrant Agent undertakes
the duties and obligations imposed by this Agreement upon the following terms
and conditions, by all of which the Company and the Holders, by their acceptance
of Warrants, shall be bound:
 
     16.1  Correctness of Statements.  The statements contained herein and in
the Warrants shall be taken as statements of the Company and the Warrant Agent
assumes no responsibility for the correctness of any of the same except such as
describe the Warrant Agent or action taken by it. The Warrant Agent assumes no
responsibility with respect to the distribution of the Warrants except as herein
otherwise provided.
 
     16.2  Breach of Covenants.  The Warrant Agent shall not be responsible for
any failure of the Company to comply with the covenants contained in this
Agreement or in the Warrants to be complied with by the Company.
 
     16.3  Performance of Duties.  The Warrant Agent may execute and exercise
any of the rights or powers hereby vested in it or perform any duty hereunder
either itself or by or through its attorneys or agents (which shall not include
its employees) and shall not be responsible for the misconduct of any agent
appointed with due care.
 
     16.4  Reliance on Counsel.  The Warrant Agent may consult at any time with
legal counsel satisfactory to it (who may be counsel for the Company) and the
Warrant Agent shall incur no liability or responsibility to the Company or to
any Holder in respect of any action taken, suffered or omitted by it hereunder
in good faith and in accordance with the opinion or the advice of such counsel.
 
     16.5  Proof of Actions Taken.  Whenever in the performance of its duties
under this Agreement the Warrant Agent shall deem it necessary or desirable that
any fact or matter be proved or established by the
 
                                       S-7
<PAGE>   355
 
Company prior to taking or suffering any action hereunder, such fact or matter
(unless other evidence in respect thereof be herein specifically prescribed) may
be deemed conclusively to be proved and established by a certificate signed by
the Chairman of the Board, the President, any Executive Vice President, the
Chief Financial Officer, any Vice President, the Treasurer or the Secretary of
the Company and delivered to the Warrant Agent; and such certificate shall be
full authorization to the Warrant Agent for any action taken or suffered in good
faith by it under the provisions of this Agreement in reliance upon such
certificate.
 
     16.6  Compensation.  The Company agrees to pay the Warrant Agent reasonable
compensation for all services rendered by the Warrant Agent in the performance
of its duties under this Agreement, to reimburse the Warrant Agent for all
expenses, taxes (other than taxes based on income) and governmental charges and
other charges of any kind and nature incurred by the Warrant Agent in the
performance of its duties under this Agreement, and to indemnify the Warrant
Agent and save it harmless against any and all liabilities, including judgments,
costs and counsel fees, for anything done or omitted by the Warrant Agent in the
performance of its duties under this Agreement except as a result of the Warrant
Agent's negligence or bad faith.
 
     16.7  Legal Proceedings.  The Warrant Agent shall be under no obligation to
institute any action, suit or legal proceeding or to take any other action
likely to involve expense unless the Company or one or more Holders shall
furnish the Warrant Agent with reasonable security and indemnity for any costs
and expenses which may be incurred, but this provision shall not affect the
power of the Warrant Agent to take such action as the Warrant Agent may consider
proper, whether with or without any such security or indemnity. All rights of
action under this Agreement or under any of the Warrants may be enforced by the
Warrant Agent without the possession of any of the Warrants or the production
thereof at any trial or other proceeding relative thereto, and any such action,
suit or proceeding instituted by the Warrant Agent shall be brought in its name
as Warrant Agent, and any recovery of judgment (other than in respect of a claim
under Section 16.6) shall be for the ratable benefit of the Holders, as their
respective rights or interests may appear.
 
     16.8  Other Transactions in Securities of Company.  The Warrant Agent and
any stockholder, director, officer or employee of the Warrant Agent may buy,
sell or deal in any of the Warrants, or other securities of the Company or have
a pecuniary interest in any transaction in which the Company may be interested,
or contract with the Company or otherwise act as fully and freely as though it
were not Warrant Agent under this Agreement. Nothing herein shall preclude the
Warrant Agent from acting in any other capacity for the Company or for any other
legal entity.
 
     16.9  Liability of Warrant Agent.  The Warrant Agent shall act hereunder
solely as agent, and its duties shall be determined solely by the provisions
hereof. The Warrant Agent shall not be liable for anything which it may do or
refrain from doing in connection with this Agreement except for its own
negligence or bad faith.
 
     16.10  Reliance on Documents.  The Warrant Agent will not incur any
liability or responsibility to the Company or to any Holder for any action taken
in reliance on any notice, resolution, waiver, consent, order, certificate, or
other paper, document or instrument reasonably believed by it to be genuine and
to have been signed, sent or presented by the proper party or parties.
 
     16.11  Validity of Agreement, etc.  The Warrant Agent shall not be under
any responsibility in respect of the validity of this Agreement or the execution
and delivery hereof (except the due execution hereof by the Warrant Agent) or in
respect of the validity or execution of any Warrant (except its countersignature
thereof) or in respect of the necessity or the extent of any adjustment to the
Warrant Price or the number of Warrant Shares purchasable under a Warrant; nor
shall the Warrant Agent by any act hereunder be deemed to make any
representation or warranty as to the authorization, reservation, value or
registration under securities laws of any Warrant Shares (or other stock) to be
issued pursuant to this Agreement or any Warrant, or as to whether any Warrant
Shares (or other stock) will, when issued, be validly issued, fully paid and
non-assessable, or as to the Warrant Price or the number or amount of Warrant
Shares or other securities or other property issuable upon exercise of any
Warrant or the method employed in making any adjustment to the foregoing.
 
     16.12  Instructions from Company.  The Warrant Agent is hereby authorized
and directed to accept instructions with respect to the performance of its
duties hereunder from the Chairman of the Board, the
 
                                       S-8
<PAGE>   356
 
President, any Executive Vice President, the Chief Financial Officer, any Vice
President, the Treasurer or the Secretary of the Company and to apply to such
officers for advice or instructions in connection with its duties, and shall not
be liable for any action taken or suffered to be taken by it in good faith in
accordance with instructions of any such officer or officers.
 
     SECTION 17.  Change of Warrant Agent.  The Warrant Agent may resign and be
discharged from its duties under this Agreement by giving to the Company sixty
days' notice in writing. The Warrant Agent may be removed by like notice to the
Warrant Agent from the Company. If the Warrant Agent shall resign or be removed
or shall otherwise become incapable of acting, the Company shall appoint a
successor to the Warrant Agent. If the Company shall fail to make such
appointment within a period of sixty days after such removal or after it has
been notified in writing of such resignation or incapacity by the resigning or
incapacitated Warrant Agent or by any Holder (who shall with such notice submit
his Warrant for inspection by the Company), then any Holder may apply to any
court of competent jurisdiction for the appointment of a successor to the
Warrant Agent. Any successor warrant agent, whether appointed by the Company or
such a court, shall be a bank or trust company, in good standing, incorporated
under the laws of the United States of America or any state thereof and having
at the time of its appointment as warrant agent a combined capital and surplus
of at least $50,000,000, or a stock transfer company. After appointment, the
successor warrant agent shall be vested with the same powers, rights, duties and
responsibilities as if it had been originally named as Warrant Agent without
further act or deed; but the former Warrant Agent shall deliver and transfer to
the successor warrant agent any property at the time held by it hereunder, and
execute and deliver any further assurance, conveyance, act or deed necessary for
the purpose. Failure to file any notice provided for in this Section 17,
however, or any defect therein, shall not affect the legality or validity of the
resignation or removal of the Warrant Agent or the appointment of the successor
warrant agent, as the case may be. In the event of such resignation or removal,
the successor warrant agent shall mail, first class, to each Holder, written
notice of such resignation or removal and the name and address of such successor
warrant agent.
 
     SECTION 18.  Identity of Transfer Agent.  Forthwith upon the appointment of
any subsequent transfer agent for the Common Stock, or any other shares of the
Company's capital stock issuable upon the exercise of the Warrants, the Company
will file with the Warrant Agent a statement setting forth the name and address
of such subsequent transfer agent.
 
     SECTION 19.  Notices.  Any notice pursuant to this Agreement by the Company
or by any Holder to the Warrant Agent, or by the Warrant Agent or by any Holder
to the Company, shall be in writing and shall be mailed first class, postage
prepaid, or delivered (a) to the Company, at its offices at 300 First Stamford
Place, P.O. Box 120014, Stamford, Connecticut 06912-0014, with copies to
               ,                  ; or (b) to the Warrant Agent, to
                 ,                  . Each party hereto may from time to time
change the address to which notices to it are to be delivered or mailed
hereunder by similar notice in writing the other party.
 
     Any notice mailed pursuant to this Agreement by the Company or the Warrant
Agent to the Holders shall be in writing and shall be mailed first class,
postage prepaid, or delivered to such Holders at their respective addresses on
the books of the Warrant Agent.
 
     SECTION 20.  Supplements and Amendments.  The Company and the Warrant Agent
may from time to time supplement or amend this Agreement, without the approval
of any Holder in order to cure any ambiguity or to correct or supplement any
provision contained herein which may be defective or inconsistent with any other
provision herein, or to make any other provisions in regard to matters or
questions arising hereunder which the Company and the Warrant Agent may deem
necessary or desirable and which shall not be inconsistent with the provisions
of the Warrants and which shall not adversely affect the interests of the
Holders. Any supplement or amendment to this Agreement which would adversely
affect the interests of the Holders may be made by the Company and the Warrant
Agent only with the approval of the holders of a majority of the outstanding
Warrants. Upon such approval, such supplement or amendment shall be binding on
all Holders.
 
                                       S-9
<PAGE>   357
 
     SECTION 21.  Successors.  All the covenants and provisions of this
Agreement by or for the benefit of the Company or the Warrant Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.
 
     SECTION 22.  Merger or Consolidation of the Company.  The Company will not
merge or consolidate with or into any other corporation unless the corporation
resulting from such merger or consolidation (if not the Company) shall expressly
assume, by supplemental agreement satisfactory in form to the Warrant Agent and
executed by such resulting corporation and delivered to the Warrant Agent, the
due and punctual performance and observance of each and every covenant and
condition of this Agreement to be performed and observed by the Company.
 
     SECTION 23.  Applicable Law.  This Agreement and each Warrant issued
hereunder shall be governed by, and construed in accordance with, the laws of
the State of New York, without giving effect to any principles of conflicts of
law.
 
     SECTION 24.  Benefits of this Agreement.  Nothing in this Agreement shall
be construed to give any person or corporation other than the Company, the
Warrant Agent, and the Holders any legal or equitable right, remedy or claim
under this Agreement; but this Agreement shall be for the sole and exclusive
benefit of the Company, the Warrant Agent and the Holders of the Warrants.
 
     SECTION 25.  Counterparts.  This Agreement may be executed in any number of
counterparts and each of such counterparts shall for all purposes be deemed to
be an original, and all such counterparts shall together constitute but one and
the same instrument.
 
     SECTION 26.  Captions.  The captions of the Sections and subsections of
this Agreement have been inserted for convenience only and shall not be deemed
part of or used in the construction of this Agreement.
 
     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date first above written.
 
                                          LONE STAR INDUSTRIES, INC.
 
                                          By:
                                             ----------------------------------
                                             
                                          Title:
                                                -------------------------------,


                                         --------------------------------------
                                            as Warrant Agent
 
                                          By:
                                             ----------------------------------

                                          Title:
                                                -------------------------------
 
                                      S-10
<PAGE>   358
 
NO. ------
                                                                       EXHIBIT A
                                                                        WARRANTS
 
                           LONE STAR INDUSTRIES, INC.
 
              INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE
 
                         COMMON STOCK PURCHASE WARRANTS
 
     THIS CERTIFIES THAT, for value received             , the registered holder
hereof, or registered assigns (the "Holder"), is entitled to purchase from Lone
Star Industries, Inc., a Delaware corporation (the "Company"), subject to the
terms and conditions hereof and of the Warrant Agreement referred to below, at
any time on or after the date of this Common Stock Purchase Warrant (the
"Warrant") and until 5:00 p.m. E.S.T. on December 31, 1998, at the purchase
price of $19.75 per share (the "Warrant Price"), the number of shares of Common
Stock, no par value, of the Company (the "Common Stock") which is initially
equal to the number of Warrants set forth above. The number of shares
purchasable upon exercise of this Warrant and the Warrant Price per share shall
be subject to adjustment from time to time as set forth in the Warrant Agreement
referred to below, and these Warrants are subject to repurchase by the Company
on the terms and conditions contained in such Warrant Agreement.
 
     This Warrant may be exercised in whole or in part by presentation of this
Warrant with the Purchase Form on the reverse side hereof duly executed and
simultaneous payment of the Warrant Price (subject to adjustment) at the
principal office of             (the "Warrant Agent"). Payment of such price
shall be made at the option of the Holder hereof in cash, by certified or
official check or any combination thereof.
 
     This Warrant is one of a duly authorized issue of Warrants evidencing the
right to purchase initially an aggregate of up to 3,333,333 shares of Common
Stock issued pursuant to a Plan of Reorganization under and in accordance with a
Warrant Agreement dated as of             , 1993 between the Company and the
Warrant Agent and is subject to the terms and provisions contained in the
Warrant Agreement, to all of which the Holder of this Warrant by acceptance
hereof consents. A copy of the Warrant Agreement may be obtained for inspection
by the Holder hereof upon written request to the Warrant Agent.
 
     Upon any partial exercise of this Warrant, there shall be countersigned and
issued to the Holder hereof a new Warrant in respect of the shares of Common
Stock as to which this Warrant shall not have been exercised. This Warrant may
be exchanged at the office of the Warrant Agent by surrender of this Warrant
properly endorsed either separately or in combination with one or more other
Warrants for one or more new Warrants entitling the Holder thereof to purchase
the same aggregate number of shares as were purchasable on exercise of the
Warrant or Warrants exchanged. No fractional shares will be issued upon the
exercise of this Warrant, but the Company shall pay the cash value of any
fraction upon the exercise of one or more Warrants. This Warrant is transferable
at the office of the Warrant Agent in New York, New York in the manner and
subject to the limitations set forth in the Warrant Agreement.
 
     The Holder hereof, until his or her transfer has been recorded on the books
of the Company, may be treated by the Company, the Warrant Agent, and all other
persons dealing with this Warrant as the absolute owner hereof for any purpose
and as the person entitled to exercise the rights represented hereby, or to the
transfer hereof on the books of the Company, any notice to the contrary
notwithstanding.
 
     This Warrant does not entitle any Holder hereof to any of the rights of a
stockholder of the Company.
 
                                      SA-1
<PAGE>   359
 
     This Warrant shall not be valid or obligatory for any purpose until it
shall have been countersigned by the Warrant Agent.
 
DATED:
 
<TABLE>
<S>                                               <C>
                                                  LONE STAR INDUSTRIES, INC.
                                                  By:
                                                     --------------------------

                                                  Title:
                                                        -----------------------

COUNTERSIGNED:                                    (Corporate Seal)

- -------------------------------------
as Warrant Agent                                  Attest:

By:
   ----------------------------------             -----------------------------
            Authorized Signature                                    Secretary

Title:
      -------------------------------
</TABLE>
 
                                      SA-2
<PAGE>   360
 
                           LONE STAR INDUSTRIES, INC.
 
                                 PURCHASE FORM
 
     The undersigned hereby irrevocably elects to exercise the right of purchase
represented by the within Warrant Certificate for, and to purchase thereunder,
          shares of the stock provided for therein, herewith makes payment in
full for such shares in the amount of $          by delivery of cash and/or
certified or official bank check, all in accordance with the terms and
conditions specified in the within Warrant Certificate and the Warrant Agreement
therein referred to, and requests that certificates for such shares be issued in
the name indicated below and delivered to the address stated below:
 
- --------------------------------------------------------------------------------
              (Please Print Name, Address and Social Security No.)
 
- --------------------------------------------------------------------------------
 
- --------------------------------------------------------------------------------
 
- --------------------------------------------------------------------------------
 
and, if said number of shares shall not be all the shares purchasable
thereunder, that a new Warrant Certificate for the balance remaining of the
Warrants under the within Warrant Certificate be registered in the name of the
undersigned Warrantholder or his or her Assignee as below indicated and
delivered to the address stated below.
 
DATED:            , 19

Name of Warrantholder or Assignee:---------------------------------------------
                                                (Please Print)
 
Address:------------------------------------------------------------------------
 
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

Signature:----------------------------------------------------------------------
 
<TABLE>
<S>                                          <C>      <C>
Signature Guaranteed By:                     NOTE:    The above signature must correspond
                                                      with the name as written upon the face
                                                      of this Warrant Certificate in every
                                                      particular, without alteration or
- -------------------------------------                 enlargement or any change whatever,
                                                      unless this Warrant has been assigned.
</TABLE>
 
                                      SA-3
<PAGE>   361
 
                                   ASSIGNMENT
 
                 (TO BE SIGNED ONLY UPON ASSIGNMENT OF WARRANT)
 
     FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers
unto
 
- --------------------------------------------------------------------------------
         (Name and Address of Assignee Must Be Printed or Typewritten)
 
the within Warrant, hereby irrevocably constituting and appointing
                         attorney to transfer said Warrant on the Company, with
full power of substitution in the premises.
 
DATED               , 19
                              -------------------------------------------------
                                       Signature of Registered Holder
 
<TABLE>
<S>                                          <C>      <C>
Signature Guaranteed By:                     NOTE:    The above signature must correspond
                                                      with the name as written upon the face
                                                      of this Warrant Certificate in every
                                                      particular, without alteration or
- ------------------------------------                  enlargement or any change whatever,
                                                      unless this Warrant has been assigned.
</TABLE>
 
                                      SA-4
<PAGE>   362
 
                           LONE STAR INDUSTRIES, INC.
 
                                 PURCHASE FORM
 
     The undersigned hereby irrevocably elects to exercise the right of purchase
represented by the within Warrant Certificate for, and to purchase thereunder,
          shares of the stock provided for therein, herewith makes payment in
full for such shares in the amount of $          by delivery of cash and/or
certified or official bank check, all in accordance with the terms and
conditions specified in the within Warrant Certificate and the Warrant Agreement
therein referred to, and requests that certificates for such shares be issued in
the name indicated below and delivered to the address stated below:
 
- --------------------------------------------------------------------------------
              (Please Print Name, Address and Social Security No.)
 
- --------------------------------------------------------------------------------
 
- --------------------------------------------------------------------------------
 
- --------------------------------------------------------------------------------
 
and, if said number of shares shall not be all the shares purchasable
thereunder, that a new Warrant Certificate for the balance remaining of the
Warrants under the within Warrant Certificate be registered in the name of the
undersigned Warrantholder or his Assignee as below indicated and delivered to
the address stated below.
 
DATED:             , 19

Name of Warrantholder or Assignee:
                                  ---------------------------------------------
                                                (Please Print)
 
Address:
 
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
 
Signature:
          ---------------------------------------------------------------------

<TABLE>
<S>                                          <C>      <C>
Signature Guaranteed By:                     NOTE:    The above signature must correspond
                                                      with the name as written upon the face
                                                      of this Warrant Certificate in every
                                                      particular, without alteration or
- -------------------------------------                 enlargement or any change whatever,
                                                      unless this Warrant has been assigned.
</TABLE>
 
                                      SA-5
<PAGE>   363
 
                                   EXHIBIT T
<PAGE>   364
 
                                                                       EXHIBIT T
 
            LONE STAR INDUSTRIES, INC. MANAGEMENT STOCK OPTION PLAN
 
1.  PURPOSE
 
     The purpose of the Lone Star Industries, Inc. Management Stock Option Plan
(the "Plan") is, by means of stock options, to provide officers and key
management, professional and technical employees ("Employees") of Lone Star
Industries, Inc. (the "Company") and its present and future subsidiaries (within
the meaning of Section 424 of the Internal Revenue Code of 1986, as amended (the
"Code")), with an increased incentive to make significant contributions to the
performance and growth of the Company and its subsidiaries, to increase stock
ownership of Employees, and to attract and retain Employees of exceptional
ability.
 
2.  ADMINISTRATION
 
     (a) The Plan shall be administered by the Compensation Committee of the
Board of Directors (the "Committee") appointed by the Board of Directors
consisting of two or more members of the Board, each of whom shall be a
"disinterested person" within the meaning of Rule 16b-3 promulgated under the
Securities Exchange Act of 1934 (the "1934 Act").
 
     (b) The Committee shall have full and complete authority in its discretion,
but subject to the provisions of the Plan; to authorize the grant of options
under the Plan; to select those Employees to be granted stock options under the
Plan; to determine the number of stock options to be granted to an Employee; to
determine the time or times at which such options shall be granted; to establish
the terms and conditions to be contained in option agreements under the Plan; to
remove any restrictions and conditions upon such stock options; and to adopt
such rules and regulations and to make all other determinations deemed necessary
or desirable for administration of the Plan.
 
     (c) All decisions of the Committee pursuant to the provisions of the Plan,
all determinations and selections made by the Committee pursuant to such
provisions and related orders and resolutions of the Board shall be final and
conclusive.
 
3.  ELIGIBILITY AND PARTICIPATION
 
     The class of employees eligible to receive stock options under the Plan are
officers and other key management, professional and technical employees who
shall be selected by the Committee from those employees who, in the opinion of
the Committee, are in positions which enable them to make significant
contributions to the performance and growth of the Company and its subsidiaries.
 
4.  STOCK OPTIONS
 
     Stock options to purchase full shares of common stock, par value $1 per
share ("Common Stock"), of the Company may at the discretion of the Committee be
Incentive Stock Options (as defined in Section 422 of the Code) or Non-Incentive
Stock Options or both. Incentive Stock Options and Non-Incentive Stock Options
are sometimes hereinafter collectively referred to as "stock options" or
"options".
 
5.  DETERMINATION OF OPTION PRICE
 
     The option price of a share of Common Stock covered by each stock option
shall be determined by the Committee but shall not be less than the fair market
value of a share of Common Stock on the date of grant of such stock option. Such
fair market value shall be the average of the high and low prices of a share of
Common Stock in New York Stock Exchange composite market transactions, as
reported by The Wall Street Journal, on the date of grant of the stock option.
 
                                       T-1
<PAGE>   365
 
6.  OPTION TERM
 
     The term within which each stock option is exercisable shall be for such
period as the Committee may determine, but such term shall not exceed a period
of ten years in the case of Incentive Stock Options and ten years and one day in
the case of Non-Incentive Stock Options from the date of grant of an option.
 
7.  OPTION AGREEMENTS
 
     Each stock option shall be evidenced by an option agreement containing such
terms and conditions, consistent with the provisions of the Plan, as the
Committee shall from time to time determine. Such terms and conditions, at the
discretion of the Committee, may include, without limitation, provisions with
respect to the time or times at which the stock option is exercisable, the
effect of termination of employment upon right of exercise, the manner of
exercise of such stock option, the payment for Common Stock either with other
shares of Common Stock or with cash or with both, and payment of income tax
withholding requirements in connection with the exercise of a Non-Incentive
Stock Option by the Company withholding or an Employee delivering shares of
Common Stock.
 
8.  DATE OF GRANT
 
     The date of grant of a stock option shall occur when the granting of the
stock option is authorized by the Committee, or such later date as may be
specified by the Committee in such authorization.
 
9.  LIMIT ON VALUE OF INCENTIVE STOCK OPTIONS
 
     The aggregate fair market value (determined as of the time the option is
granted) of Common Stock with respect to which Incentive Stock Options are
exercisable for the first time by an Employee during any calendar year (under
all plans of the Company or any subsidiary of the Company which provide for the
granting of Incentive Stock Options) shall not exceed $100,000.
 
10.  ADJUSTMENTS UPON CHANGES IN CAPITALIZATION
 
     In the event of changes in the Common Stock by reason of stock dividends,
split-ups, recapitalizations, mergers, consolidations, combinations or exchanges
of shares and the like, the maximum number of shares of Common Stock subject to
the Plan and the number of shares and option price per share of all stock
subject to outstanding options shall be adjusted by the Committee as shall be
necessary to maintain the proportionate interest of the optionees and preserve,
without exceeding, the value of the options.
 
11.  TERMINATION OF EMPLOYMENT
 
     During its term, an option may be exercised both while the holder thereof
continues to be an Employee and during the three month period following
termination of employment. Such three month period shall be one year in the case
of disability (within the meaning of Section 22(e)(3) of the Code) or of death.
 
12.  TRANSFERABILITY OF OPTIONS
 
     Options under the Plan shall not be assignable or transferable, or subject
to encumbrance or charge of any nature, otherwise than (i) by will or the laws
of descent and distribution, (ii) pursuant to a qualified domestic relations
order as defined in the Code or Title I of the Employee Retirement Income
Security Act, or the rules thereunder; and (iii) to members of the Employee's
immediate family (i.e., the Employee's children, grandchildren and spouse), or
to one or more trusts for the benefit of such immediate family members, or
partnerships in which such family members are the only partners, provided that
any such transfer shall be permitted only if: (1) the option holder does not
receive any consideration for such transfer, (2) written notice of such proposed
transfer and the details thereof shall have been furnished to the Committee, and
(3) the stock option agreement with respect to the options being transferred
(including any amendment thereof), which shall have been approved by the
Committee, expressly permits such transfer. Any options transferred to such
immediate family members, trusts or partnerships will continue to be subject to
the same terms and
 
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conditions that were applicable to such options immediately prior to their
transfer. Any transfer in violation of this paragraph shall be void and of no
effect. Unless transferred in accordance with this paragraph, a stock option may
be exercised, during the lifetime of the Employee to whom such stock option was
granted, only by such Employee.
 
13.  AMENDMENT AND TERMINATION
 
     The Board of Directors of the Company may at any time and from time to time
amend, suspend or terminate the Plan in whole or in part; provided, however,
that the Board of Directors may not amend the Plan without the approval of the
Company's stockholders if such approval is required to comply with Rule 16b-3
under the 1934 Act or the Delaware General Corporation Law or, with respect to
Incentive Stock Options, Section 422 of the Code, or any applicable rules of the
National Association of Securities Dealers, Inc. or the New York Stock Exchange,
or any successor provisions. No such amendment, suspension or termination may,
without the consent of the Employee to whom an option shall theretofore have
been granted, adversely affect the rights of such Employee under such option.
 
14.  COMMON STOCK RESERVED FOR PLAN
 
     Subject to adjustment as provided in Section 10 hereof, the aggregate
number of shares of Common Stock which may be issued under options and which
shall be reserved for purposes of the Plan shall be 700,000. Authorized but
unissued shares or treasury shares or both may be utilized for purposes of the
Plan. Such number of reserved shares shall be reduced if and to the extent that
treasury shares rather than authorized but unissued shares of Common Stock shall
be utilized for purposes of the Plan. If any stock option shall expire or
terminate for any reason without having been exercised in full, the unpurchased
shares under such option shall again become available for purposes of the Plan.
 
15.  USE OF COMMON STOCK FOR INCOME TAX WITHHOLDING REQUIREMENTS
 
     Any option granted hereunder may provide, at the discretion of the
Committee, for appropriate arrangements for the satisfaction by the Company and
the Employee of all federal, state, local or other income tax withholding
requirements applicable to the exercise of the option, such arrangements may
include, in the Committee's discretion, the right of the Employee to require the
Company to withhold in the form of shares of Common Stock from any transfer of
shares of Common Stock to an Employee in connection with the exercise of an
option or to receive transfers of shares of Common Stock from the Employee in
connection with the exercise of an option.
 
16.  MISCELLANEOUS PROVISIONS
 
     (a) Nothing in the Plan or in any stock option granted pursuant to the Plan
shall confer on any Employee the right to continue in the employ of the Company
or any of its subsidiaries or affect in any way the right of the Company or any
such subsidiary to terminate such Employee's employment at any time.
 
     (b) The grant of stock options under the Plan shall not confer upon any
Employee any of the rights of a stockholder until due exercise of the Employee's
stock option and until the Employee shall have received a certificate or
certificates therefor.
 
     (c) No option may be exercised with respect to a fractional share.
 
17.  DURATION OF PLAN
 
     The Plan shall expire on the tenth anniversary of the earlier of its
approval by the Board or the Stockholders of the Company, unless earlier
terminated, and no stock option shall be granted after expiration or termination
but stock options previously granted shall remain outstanding in accordance with
their applicable terms and conditions and the terms and conditions of the Plan.
 
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<PAGE>   367
 
18.  SECTION 16(B) COMPLIANCE
 
     It is the intention of the Company that the Plan shall comply in all
respects with Rule 16b-3 under the 1934 Act and, if any Plan provision is later
found not to be in compliance with Section 16 of the 1934 Act, the provision
shall be deemed null and void, and in all events the Plan shall be construed in
favor of its meeting the requirements of Rule 16b-3. Notwithstanding anything in
the Plan to the contrary, the Board, in its absolute discretion, may bifurcate
the Plan so as to restrict, limit or condition the use of any provision of the
Plan to participants who are officers subject to Section 16 of the 1934 Act
without so restricting, limiting or conditioning the Plan with respect to other
participants.
 
19.  EFFECTIVE DATE OF PLAN
 
     The Plan shall be effective as of Effective Date of the Plan of
Reorganization.
 
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<PAGE>   368
 
             LONE STAR INDUSTRIES, INC. DIRECTORS STOCK OPTION PLAN
 
1.  PURPOSE
 
     The purpose of the Lone Star Industries, Inc. Directors Stock Option Plan
(the "Plan") is, by the means of stock options, to encourage ownership in Lone
Star Industries, Inc. (the "Company") by outside directors of the Company whose
continued services are considered essential to the Company's growth and progress
and to provide them with a further incentive to continue as directors of the
Company.
 
2.  ADMINISTRATION
 
     (a) The Plan shall be administered by the board of directors of the Company
(the "Board").
 
     (b) Grants of options under the Plan and the amount and nature of such
grants shall be automatic in accordance with Section 4 hereof.
 
     (c) All decisions of the Board pursuant to the provisions of the Plan shall
be final and conclusive.
 
3.  PARTICIPATION IN THE PLAN
 
     Each non-employee member of the Board shall be a participant in the Plan.
No person who is also an employee of the Company or one of its subsidiaries
shall be a participant except with respect to any options received prior to
becoming such an employee.
 
4.  STOCK OPTIONS
 
     Each director who was not an employee of the Company or one of its
subsidiaries during the six month period preceding the date options are
distributed shall receive on the first business day following the first meeting
of the Board of Directors to occur after the confirmation of the Company's plan
of reorganization and thereafter on the first business day following the final
adjournment of the Company's Annual Meeting of Stockholders (commencing with the
Annual Meeting of Stockholders held during the first calendar year beginning
after the Board meeting resulting in the initial grant of options and continuing
thereafter during the term of the Plan) an option to purchase 1,000 shares of
the Company's common stock, par value $1 per share ("Common Stock"), provided
there is a sufficient number of shares available; otherwise the number of shares
shall be prorated.
 
5.  DETERMINATION OF OPTION PRICE
 
     The option price of a share of Common Stock covered by each stock option
shall be the fair market value of a share of Common Stock on the date of grant
of such stock option. Such fair market value (the "Fair Market Value") shall be
the average of the high and low prices of a share of Common Stock in New York
Stock Exchange composite market transactions, as reported by The Wall Street
Journal, on the date of grant of the stock option. In no event shall the
purchase price be less than the par value of the shares.
 
6.  OPTION TERM
 
     The term within which each stock option is exercisable shall be ten years
from the date of distribution of an option. No option shall be exercised prior
to six months after the date on which the option was distributed. While an
optionee is a director of the Company and in the case of an optionee who ceases
to be a director of the Company by reason of retirement, full and complete
disability, or death, an option may be exercised prior to its expiration only by
the optionee or, in the case of death, by the executor or administrator of
optionee's estate or by a person who acquired the right to exercise such option
by bequest or inheritance. All option privileges continue for five (5) years
after retirement, full and complete disability or death, but not after the
expiration of the option term. Otherwise, an option may only be exercised within
the ninety day period after an optionee ceases to be a director of the Company.
 
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<PAGE>   369
 
7.  OPTION AGREEMENTS
 
     Each stock option shall be evidenced by an option agreement containing such
terms and conditions, consistent with the provisions of the Plan, as the Board
shall from time to time determine.
 
8.  ADJUSTMENTS UPON CHANGES IN CAPITALIZATION
 
     In the event of changes in the Common Stock by reason of stock dividends,
split-ups, recapitalizations, mergers, consolidations, combinations or exchanges
of shares and the like, the maximum number of shares of Common Stock subject to
the Plan and the number of shares and option price per share of all stock
subject to outstanding options shall be adjusted as shall be necessary to
maintain the proportionate interest of the optionees and preserve without
exceeding, the value of the options.
 
9.  TRANSFERABILITY OF OPTIONS
 
     Options under the Plan shall not be assignable or transferable, or subject
to encumbrance or charge of any nature, otherwise than by will or the laws of
descent and distribution. A stock option may be exercised, during the lifetime
of a director to whom such stock option was granted, only by such director.
 
10.  AMENDMENT AND TERMINATION
 
     The Board may at any time and from time to time amend, suspend or terminate
the Plan in whole or in part; provided, however, that the Board may not amend
the Plan without the approval of the Company's stockholders if such approval is
required to comply with Rule 16b-3 under the Securities Exchange Act of 1934
(the "1934 Act") or the Delaware General Corporation Law or any applicable rules
of the National Association of Securities Dealers, Inc. or the New York Stock
Exchange; and provided further, that the Plan shall not be amended more than
once every six months, other than to comport with changes in the Internal
Revenue Code of 1986, as amended, the Employee Retirement Income Security Act,
or the rules thereunder. No such amendment, suspension or termination may,
without the consent of a director to whom an option shall theretofore have been
granted, adversely affect the rights of such director under such option.
 
11.  COMMON STOCK RESERVED FOR PLAN
 
     Subject to adjustment under Section 8, the aggregate number of shares of
Common Stock which may be issued under options and which shall be reserved for
purposes of the Plan shall be 50,000. Authorized but unissued shares or treasury
shares or both may be utilized for purposes of the Plan. Such number of reserved
shares shall be reduced if and to the extent that treasury shares rather than
authorized but unissued shares of Common Stock shall be utilized for purposes of
the Plan. If any stock option shall expire or terminate for any reason without
having been exercised in full, the unpurchased shares under such option shall
again become available for purposes of the Plan.
 
12.  PAYMENT
 
     (a) Payment for all shares shall be made in cash or with Common Stock or a
combination of both delivered at the time that an option, or any part thereof,
is exercised. No shares shall be issued until full payment therefor has been
made. Common Stock used as payment shall have been owned by the optionee not
less than six months preceding the date the option is exercised and shall be
valued at its Fair Market Value.
 
     (b) Any option granted hereunder shall provide that a director may, at
least six months prior to the first exercise by such director of an option,
elect (which election shall be irrevocable and cover all options granted to the
director hereunder) to provide for the satisfaction of all obligations of the
Company and the optionee under all federal, state, local or other income tax
withholding requirements applicable to the exercise of the option (i) by the
Company's withholding shares of Common Stock from any transfer of shares of
Common Stock to such director in connection with the exercise of an option or
(ii) by such director's transferring shares of Common Stock to the Company.
Common Stock transferred to satisfy withholding obligations pursuant to
 
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<PAGE>   370
 
the immediately preceding sentence shall have been owned by the optionee not
less than six months preceding the date the option is exercised and shall be
valued at its Fair Market Value.
 
13.  MISCELLANEOUS PROVISIONS
 
     (a) The grant of stock options under the Plan shall not confer upon any
director any of the rights of a shareholder until due exercise of the director's
stock option and until the director shall have received a certificate or
certificates therefor.
 
     (b) No option may be exercised with respect to a fractional share.
 
14.  DURATION OF PLAN
 
     The Plan shall expire on the tenth anniversary of the earlier of approval
of the Board or the stockholders of the Company, unless earlier terminated, and
no stock option shall be granted after expiration or termination but stock
options previously granted shall remain outstanding in accordance with their
applicable terms and conditions and the terms and conditions of the Plan.
 
15.  SECTION 16(B) COMPLIANCE
 
     It is the intention of the Company that the Plan shall comply in all
respects with Rule 16b-3 under the 1934 Act and, if any Plan provision is later
found not to be in compliance with Section 16 of the 1934 Act, the provision
shall be deemed null and void, and in all events the Plan shall be construed in
favor of its meeting the requirements of Rule 16b-3.
 
16.  EFFECTIVE DATE OF PLAN
 
     The Plan shall be effective as of Effective Date of the Plan of
Reorganization.
 
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