ICO INC
8-A12G, 1997-12-22
OIL & GAS FIELD SERVICES, NEC
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                        _______________________________

                                    FORM 8-A

               FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                    PURSUANT TO SECTION 12(b) OR (g) OF THE
                        SECURITIES EXCHANGE ACT OF 1934

                        _______________________________

                                   ICO, INC.
             (Exact name of registrant as specified in its charter)

              TEXAS                                      75-1619554
(State of Incorporation or organization)      (I.R.S. Employer Identification 
                                                           Number)

       11490 WESTHEIMER ROAD
           HOUSTON, TEXAS                              77077
(Address of principal executive offices)             (Zip code)


         Securities to be registered pursuant to Section 12(b) of the Act: NONE

         If this form relates to the registration of a class of securities
pursuant to Section 12(b) of the Exchange Act and is effective pursuant to
General Instruction A.(c), check the following box: [  ]

         If this form relates to the registration of a class of securities
pursuant to Section 12(g) of the Exchange Act and is effective pursuant to
General Instruction A.(d), check the following box: [X]

         Securities to be registered pursuant to Section 12(g) of the Act:

                   RIGHTS TO PURCHASE JUNIOR PARTICIPATING
                  PREFERRED STOCK, PAR VALUE $.01 PER SHARE

                              (Title of Class)
<PAGE>   2
Item 1.  Description of Registrant's Securities to be Registered.

         On October 31, 1997, the Board of Directors of ICO, Inc.(the
"Company") authorized the issuance of one preferred share purchase right (a
"Right") for each outstanding share of common stock, par value $.01 per share
(the "Common Shares"), of the Company.  The rights will be issued to the
holders of record of Common Shares on November 20, 1997 (the "Record Date").
Each Right entitles the registered holder to purchase from the Company one
one-thousandth of a share of Junior Participating Preferred Stock, par value
$.01 per share (the "Preferred Shares"), of the Company, at a price of $30.00
per one one-thousandth of a Preferred Share (the "Purchase Price"), subject to
adjustment.  The description and terms of the Rights are set forth in a Rights
Agreement (the "Rights Agreement") dated as of November 20, 1997 between the
Company and Harris Trust & Savings Bank, as Rights Agent (the "Rights Agent").

         DETACHMENT OF RIGHTS; EXERCISE.  Initially, the Rights will attach to
all Common Share certificates representing outstanding shares and no separate
Right Certificate will be distributed.  The Rights will separate from the
Common Shares and a Distribution Date will occur upon the earlier of (i) the
tenth business day following a public announcement that a person or group of
affiliated or associated persons (an "Acquiring Person") has acquired
beneficial ownership of 15% or more of the outstanding Voting Shares (as
defined in the Rights Agreement) of the Company, or (ii) the tenth business day
following the commencement or announcement of an intention to commence a tender
offer or exchange offer the consummation of which would result in the
beneficial ownership by a person or group of 15% or more of such outstanding
Voting Shares.

         Until the Distribution Date (or earlier redemption or expiration of
the Rights) (i) the Rights will be evidenced, with respect to the Common Shares
outstanding on November 21, 1997, by the certificates representing such Common
Shares with a copy of the Summary of Rights to Purchase Preferred Shares
included as Exhibit 4 hereto (the "Summary of Rights") attached thereto, (ii)
the Rights will be transferred with and only with the Common Shares, (iii) new
Common Share certificates issued after November 21, 1997, upon transfer or new
issuance of the Common Shares, will contain a notation incorporating the Rights
Agreement by reference, and (iv) the surrender for transfer of any certificates
for Common Shares outstanding as of November 21, 1997, even without such
notation or a copy of the Summary of Rights being attached thereto, will also
constitute the transfer of the Rights associated with the Common Shares
represented by such certificate.

         As soon as practicable following the Distribution Date, separate
certificates evidencing the Rights (the "Right Certificates") will be mailed to
holders of record of the Common Shares as of the close of business on the
Distribution Date and such separate Right Certificates alone will thereafter
evidence the Rights.

         The Rights are not exercisable until the Distribution Date.  The
Rights will expire on November 21, 2007 (the "Final Expiration Date"), unless
the Final Expiration Date is extended or the Rights are earlier redeemed or
exchanged by the Company as described below.



                                      2
<PAGE>   3
         If a person or group were to acquire 15% or more of the Voting Shares
of the Company, each Right then outstanding (other than Rights beneficially
owned by the Acquiring Person which would become null and void) would become a
right to buy that number of Common Shares (or under certain circumstances, the
equivalent number of one one-thousandths of a Preferred Share) that at the time
of such acquisition would have a market value of two times the Purchase Price
of the Right.

         If the Company were acquired in a merger or other business combination
transaction or assets constituting more than 50% of its consolidated assets or
producing more than 50% of its earning power or cash flow were sold, proper
provision will be made so that each holder of a Right will thereafter have the
right to receive, upon the exercise thereof at the then current Purchase Price
of the Right, that number of shares of common stock of the acquiring company
which at the time of such transaction would have a market value of two times
the Purchase Price of the Right.

         PREFERRED SHARES.  The dividend and liquidation rights, and the
non-redemption feature, of the Preferred Shares are designed so that the value
of one one-thousandth of a Preferred Share purchasable upon exercise of each
Right will approximate the value of one Common Share.  The Preferred Shares
issuable upon exercise of the Rights will be non-redeemable and rank junior to
all other series of the Company's preferred stock.  Each whole Preferred Share
will be entitled to receive a quarterly preferential dividend in an amount per
share equal to the greater of (i) $1.00 in cash, or (ii) in the aggregate,
1,000 times the dividend declared on the Common Shares.  In the event of
liquidation, the holders of the Preferred Shares will be entitled to receive a
preferential liquidation payment equal to the greater of (i) $1,000 per share,
or (ii) in the aggregate, 1,000 times the payment made on the Common Shares.
In the event of any merger, consolidation or other transaction in which Common
Shares are exchanged for or changed into other stock or securities, cash or
other property, each whole Preferred Share will be entitled to receive 1,000
times the amount received per Common Share.  Each whole Preferred Share shall
be entitled to 1,000 votes on all matters submitted to a vote of the
stockholders of the Company, and Preferred Shares shall generally vote together
as one class with the Common Stock and any other capital stock on all matters
submitted to a vote of stockholders of the Company.

         The offer and sale of the Preferred Shares issuable upon exercise of
the Rights will be registered with the Securities and Exchange Commission and
such registration will not be effective until the Rights become exercisable.

         ANTIDILUTION AND OTHER ADJUSTMENTS.  The number of one one-thousandths
of a Preferred Share or other securities or property issuable upon exercise of
the Rights, and the Purchase Price payable, are subject to customary
adjustments from time to time to prevent dilution.

         The number of outstanding Rights and the number of one one-thousandths
of a Preferred Share issuable upon exercise of each Right are also subject to
adjustment in the event of a stock split of the Common Shares or a stock
dividend on the Common Shares payable in Common Shares or subdivisions,
consolidations or combinations of the Common Shares occurring, in any such
case, prior to the Distribution Date.





                                       3
<PAGE>   4
         EXCHANGE OPTION.  At any time after the acquisition by a person or
group of affiliated or associated persons of beneficial ownership of 15% or
more of the outstanding Voting Shares of the Company and before the acquisition
by a person or group of 50% or more of the outstanding Voting Shares of the
Company, the Board of Directors may, at its option, issue Common Shares in
mandatory redemption of, and in exchange for, all or part of the then
outstanding and exercisable Rights (other than Rights owned by such person or
group which would become null and void) at an exchange ratio of one Common
Share (or one one-thousandth of a Preferred Share) for each two Common Shares
for which each Right is then exercisable, subject to adjustment.

         REDEMPTION OF RIGHTS.  At any time prior to the first public
announcement that a person or group has become the beneficial owner of 15% or
more of the outstanding Voting Shares, the Board of Directors of the Company
may redeem all but not less than all the then outstanding Rights at a price of
$0.01 per Right (the "Redemption Price").  The redemption of the Rights may be
made effective at such time, on such basis and with such conditions as the
Board of Directors in its sole discretion may establish.  Immediately upon the
action of the Board of Directors ordering redemption of the Rights, the right
to exercise the Rights will terminate and the only right of the holders of
Rights will be to receive the Redemption Price.

         NO RIGHTS AS STOCKHOLDER.  Until a Right is exercised, the holder
thereof, as such, will have no rights as a stockholder of the Company,
including, without limitation, the right to vote or to receive dividends.

         AMENDMENT OF RIGHTS.  The terms of the Rights may be amended by the
Board of Directors of the Company without the consent of the holders of the
Rights, including an amendment to extend the Final Expiration Date, and,
provided a Distribution Date has not occurred, to extend the period during
which the Rights may be redeemed, except that after the first public
announcement that a person or group has become the beneficial owner of 15% or
more of the outstanding Voting Shares, no such amendment may materially and
adversely affect the interests of the holders of the Rights.

         The foregoing description of the Rights does not purport to be
complete and is qualified in its entirety by reference to the Rights Agreement,
form of Certificate of Designations of Junior Participating Preferred Stock,
form of Right Certificate, and the form of the Summary of Rights, filed as
exhibits hereto and incorporated by reference herein.

Item 2.  Exhibits.

         1.      Rights Agreement, dated as of November 20, 1997, between the
         Company and Harris Trust & Savings Bank, L.L.C., as Rights Agent,
         specifying the terms of the Rights, which includes the form of
         Certificate of Designation of Junior Participating Preferred Stock as
         Exhibit A, the form of Right Certificate as Exhibit B and the form of
         the Summary of Rights to Purchase Preferred Shares as Exhibit C.





                                       4
<PAGE>   5
         2.      Form of Certificate of Designation of Junior Participating
         Preferred Stock (included as Exhibit A to the Rights Agreement filed
         as Exhibit 1 hereto) setting forth the terms of the Junior
         Participating Preferred Stock, par value $.01 per share.

         3.      Form of Right Certificate (included as Exhibit B to the Rights
         Agreement filed as Exhibit 1 hereto).  Pursuant to the Rights
         Agreement, printed Right Certificates will not be delivered until as
         soon as practicable after the Distribution Date.

         4.      Form of Summary of Rights to Purchase Preferred Shares
         (included as Exhibit C to the Rights Agreement filed as Exhibit 1
         hereto) which, together with certificates representing the outstanding
         Common Shares of the Company, shall represent the Rights prior to the
         Distribution Date.


                                   SIGNATURE

         Pursuant to the requirements of Section 12 of the Securities Exchange
Act of 1934, the registrant has duly caused this registration statement to be
signed on its behalf by the undersigned, thereto duly authorized.


                                        ICO, INC.                        
                                                                         
                                                                         
                                                                         
Date: December 22, 1997                 By:     /s/ Jon C. Biro            
                                           ------------------------------
                                        Name:   Jon C. Biro              
                                        Title:  Senior Vice President and
                                                Treasurer                





                                       5
<PAGE>   6


                                 EXHIBIT INDEX

<TABLE>
<CAPTION>
      Exhibit
      Number                                               Description
      -------                                              -----------
         <S>        <C>
         1          Rights Agreement, dated as of November 20, 1997, between the Company and Harris Trust &
                    Savings Bank, as Rights Agent, specifying the terms of the Rights, which includes the
                    form of Certificate of Designation of Junior Participating Preferred Stock as Exhibit A,
                    the form of Right Certificate as Exhibit B and the form of the Summary of Rights to
                    Purchase Preferred Shares as Exhibit C.

         2          Form of Certificate of Designation of Junior Participating Preferred Stock (included as
                    Exhibit A to the Rights Agreement filed as Exhibit 1 hereto) setting forth the terms of
                    the Junior Participating Preferred Stock, par value $.01 per share.

         3          Form of Right Certificate (included as Exhibit B to the Rights Agreement filed as
                    Exhibit 1 hereto). Pursuant to the Rights Agreement, printed Right Certificates will
                    not be delivered until as soon as practicable after the Distribution Date.


         4          Form of Summary of Rights to Purchase Preferred Shares (included as Exhibit C to the
                    Rights Agreement filed as Exhibit 1 hereto) which, together with certificates
                    representing the outstanding Common Shares of the Company, shall represent the Rights
                    prior to the Distribution Date.
</TABLE>




                                      6
                         

<PAGE>   1
                                                                      EXHIBIT 1

================================================================================





                                Rights Agreement
                                    between



                                   ICO, INC.
                                      AND
                          HARRIS TRUST & SAVINGS BANK



                              November 20, 1997





================================================================================
<PAGE>   2
                               TABLE OF CONTENTS


<TABLE>
<S>        <C>                                                                                                        <C>
Section 1.   Certain Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    1

Section 2.   Appointment of Rights Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6

Section 3.   Issue of Right Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6

Section 4.   Form of Right Certificates  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    8

Section 5.   Execution, Authentication and Delivery  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    9

Section 6.   Registration, Registration of Transfer and Exchange . . . . . . . . . . . . . . . . . . . . . . . . . .    9

Section 7.   Mutilated, Destroyed, Lost and Stolen Right Certificates  . . . . . . . . . . . . . . . . . . . . . . .   10

Section 8.   Exercise of Rights; Purchase Price; Expiration Date of Rights . . . . . . . . . . . . . . . . . . . . .   11

Section 9.   Cancellation and Destruction of Right Certificates  . . . . . . . . . . . . . . . . . . . . . . . . . .   11

Section 10.  Reservation and Availability of Shares  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   12

Section 11.  Record Date   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   12

Section 12.  Adjustment of Purchase Price, Number of Shares or Number of Rights  . . . . . . . . . . . . . . . . . .   13

Section 13.  Certificate of Adjusted Purchase Price or Number of Shares  . . . . . . . . . . . . . . . . . . . . . .   18

Section 14.  Consolidation, Merger or Sale or Transfer of Assets or Earning Power  . . . . . . . . . . . . . . . . .   19

Section 15.  Fractional Rights and Fractional Shares   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   20

Section 16.  Rights of Action  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   21

Section 17.  Agreement of Right Holders  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   21

Section 18.  Right Certificate Holder Not Deemed a Stockholder   . . . . . . . . . . . . . . . . . . . . . . . . . .   22

Section 19.  Concerning the Rights Agent   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   22

Section 20.  Duties of Rights Agent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   23

Section 21.  Merger or Consolidation or Change of Name of Rights Agent   . . . . . . . . . . . . . . . . . . . . . .   25

Section 22.  Change of Rights Agent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   25
</TABLE>





                                      -i-
<PAGE>   3
<TABLE>
<S>          <C>                                                                                                       <C>
Section 23.  Issuance of New Right Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26

Section 24.  Redemption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26

Section 25.  Mandatory Redemption and Exchange  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27

Section 26.  Notice of Certain Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28

Section 27.  Securities Laws Registrations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29

Section 28.  Notices  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29

Section 29.  Supplements and Amendments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30

Section 30.  Successors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30

Section 31.  Benefits of this Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30

Section 32.  Severability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31

Section 33.  Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31

Section 34.  Counterparts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31

Section 35.  Descriptive Headings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31

</TABLE>

Exhibits

Exhibit A -- Certificate of Designation of Preferred Shares
Exhibit B -- Right Certificate
Exhibit C -- Summary of Rights





                                      -ii-

<PAGE>   4
                                RIGHTS AGREEMENT

         This Rights Agreement, dated as of November 20, 1997, is between ICO,
Inc., a Texas corporation (the "Company"), and Harris Trust & Savings Bank, a
national banking association, as Rights Agent.

         WHEREAS, the Board of Directors of the Company, having determined its
actions to be in the interests of the Company, has authorized the creation of
Rights, has authorized and directed the issuance to the Holders of record of
Common Shares of the Company outstanding on November 21, 1997 of one Right with
respect to each Common Share of the Company outstanding on November 21, 1997,
and has further authorized and directed the issuance of one Right with respect
to each Common Share that shall become outstanding between November 21, 1997
and the earlier of the Distribution Date, the Redemption Date and the Final
Expiration Date; and

         WHEREAS, the Board of Directors of the Company has authorized and
directed that the terms and conditions under which the Rights are to be
distributed, including without limitation those affecting the exercise thereof,
the securities or other property to be acquired thereby and the purchase price
to be paid therefor, shall be set forth in a written agreement between the
Company and a rights agent made for the benefit of the holders of the Rights to
the extent so provided therein.

         NOW, THEREFORE, in consideration of the premises and the mutual
agreements herein set forth, the parties hereto agree as follows:

         Section 1.  Certain Definitions.  For purposes of this Agreement, the
following terms shall have the meanings indicated:

                 "Acquiring Person" shall mean any Person who or which,
         together with all Affiliates and Associates of such Person, shall be
         the Beneficial Owner of 15% or more of the Voting Shares of the
         Company then outstanding, but shall not include the Company, any
         Subsidiary of the Company, any employee benefit plan of the Company or
         of any Subsidiary of the Company or any trustee of or fiduciary with
         respect to any such plan when acting in such capacity.
         Notwithstanding the foregoing, no Person shall become an "Acquiring
         Person" as the result of an acquisition of Voting Shares by the
         Company which, by reducing the number of shares outstanding, increases
         the proportionate number of shares beneficially owned by such Person
         to 15% or more of the Voting Shares of the Company then outstanding;
         provided, however, that, if a Person shall become the Beneficial Owner
         of 15% or more of the Voting Shares of the Company then outstanding by
         reason of share purchases by the Company and shall, after such share
         purchases by the Company and at a time when such Person is the
         Beneficial Owner of 15% or more of the Voting Shares of the Company
         then outstanding, become the Beneficial Owner of any additional Voting
         Shares of the Company, then such Person shall be deemed to be an
         "Acquiring Person".  Notwithstanding the foregoing, if the Board of
         Directors of the Company determines in good faith that a Person who
         would otherwise be an "Acquiring Person", as defined pursuant to the
         foregoing provisions of



                                     -1-
<PAGE>   5
         this paragraph (a), has become such inadvertently, and such Person
         divests as promptly as practicable a sufficient number of Common
         Shares so that such Person would no longer be an "Acquiring Person,"
         as defined pursuant to the foregoing provisions of this paragraph (a),
         then such Person shall not be deemed to be an "Acquiring Person" for
         any purposes of this Agreement.

                 "Agreement" shall mean this Rights Agreement as hereafter
         amended from time to time.

                 "Affiliate" and "Associate" shall have the respective meanings
         ascribed to such terms in Rule 12b-2 of the General Rules and
         Regulations under the Exchange Act as in effect on the date of this
         Agreement.

                 A Person shall be deemed the "Beneficial Owner" of and shall
         be deemed to "own beneficially" any securities which (without
         duplication):

                 (i)      such Person or any of such Person's Affiliates or
         Associates beneficially owns, directly or indirectly, within the
         meaning of either Section 13 or 16 of the Exchange Act;

                 (ii)     such Person or any of such Person's Affiliates or
         Associates has (A) the right to acquire (whether such right is
         exercisable immediately or only after the passage of time) pursuant to
         any agreement, arrangement or understanding (other than customary
         agreements with and between underwriters and selling group members
         with respect to a bona fide public offering of securities), or upon
         the exercise of conversion rights, exchange rights, rights (other than
         these Rights), warrants or options, or otherwise; or (B) the right to
         vote pursuant to any agreement, arrangement or understanding; or

                 (iii)    are beneficially owned, directly or indirectly, by
         any other Person with which such Person or any of such Person's
         Affiliates or Associates has any agreement, arrangement or
         understanding (other than customary agreements with and between
         underwriters and selling group members with respect to a bona fide
         public offering of securities) for the purpose of acquiring, holding,
         voting or disposing of any securities of the Company; provided,
         however, that, for purposes of each clause of this definition, a
         Person shall not be deemed the Beneficial Owner of, or to own
         beneficially, securities tendered pursuant to a tender or exchange
         offer made by or on behalf of such Person or any of such Person's
         Affiliates or Associates until such tendered securities are accepted
         for purchase or exchange; and provided, further, that, for purposes of
         each clause of this definition, a Person shall not be deemed the
         Beneficial Owner of, or to own beneficially, any security as a result
         of any agreement, arrangement or understanding to vote such security
         if such agreement, arrangement or understanding (1) arises solely from
         a revocable proxy or consent given to such Person in response to a
         public proxy or consent solicitation made pursuant to, and in
         accordance with, the applicable rules and regulations promulgated
         under the Exchange Act and (2) is not also then reportable on Schedule
         13D under the Exchange Act (or any comparable or successor report).





                                      -2-
<PAGE>   6
                 Notwithstanding anything in this definition to the contrary,
         the phrase "then outstanding", when used with reference to a Person's
         Beneficial Ownership of securities of the Company (or to the number of
         such securities "beneficially owned"), shall mean the number of such
         securities then issued and outstanding together with the number of
         such securities not then actually issued and outstanding which such
         Person would be deemed to own beneficially hereunder.

                 "Business Day" shall mean any day other than a Saturday,
         Sunday or a day on which banking institutions in the State of Texas or
         Illinois are authorized or obligated by law or executive order to
         close.

                 "Close of Business" on any given date shall mean 5:00 P.M.,
         Houston or Chicago time, on such date; provided, however, that if such
         date is not a Business Day it shall mean 5:00 P.M., Houston or Chicago
         time, on the next succeeding Business Day.

                 "Closing Price", with respect to any security, shall mean the
         last sale price, regular way, on a specific Trading Day or, in case no
         such sale takes place on such Trading Day, the average of the closing
         bid and asked prices, regular way, in either case as reported in the
         principal consolidated transaction reporting system with respect to
         securities listed or admitted to trading on the New York Stock
         Exchange or, if such security is not then listed or admitted to
         trading on the New York Stock Exchange, as reported in the principal
         consolidated transaction reporting system with respect to securities
         listed on the principal national securities exchange on which such
         security is listed or admitted to trading or, if such security is not
         then listed or admitted to trading on any national securities
         exchange, the last quoted price or, if not so quoted, the average of
         the high bid and low asked prices in the over-the-counter market, as
         reported by the National Association of Securities Dealers, Inc.
         Automated Quotations System or such other system then in use, or, if
         on any such Trading Day such security is not quoted by any such
         organization, the average of the closing bid and asked prices as
         furnished by a professional market maker making a market in such
         security selected by the Board of Directors of the Company.  If such
         security is not publicly held or so listed or traded, "Closing Price"
         shall mean the fair value per unit of such security as determined in
         good faith by the Board of Directors of the Company, whose
         determination shall be described and the Closing Price set forth in a
         statement filed with the Rights Agent.

                 "Common Shares" when used with reference to the Company shall
         mean shares of capital stock of the Company which have no preference
         over any other class of stock with respect to dividends or assets,
         which are not redeemable at the option of the Company and with respect
         to which no sinking, purchase or similar fund is provided and shall
         initially mean the shares of Common Stock, no par value, of the
         Company.  "Common Shares" when used with reference to any Person other
         than the Company shall, if used with reference to a corporation, mean
         the capital stock (or equity interest) with the greatest voting power
         of such other Person or, if such other Person is a Subsidiary of
         another Person, the Person or Persons which ultimately control such
         first-mentioned Person and, if used with reference to any other
         Person, mean the equity interest in such Person (or, if the net worth
         determined in accordance with generally accepted accounting





                                      -3-
<PAGE>   7
         principles of another Person (other than an individual) which controls
         such first-mentioned Person is greater than such first-mentioned
         Person, then such other Person) with the greatest voting power or
         managerial power with respect to the business and affairs of such
         Person.

                 "Company" shall mean ICO, Inc., a Texas corporation, and its
         successors.

                 "Company Order" means a written request or order signed in the
         name of the Company by its Chairman of the Board, its President or a
         Vice President, and by its Treasurer, an Assistant Treasurer, its
         Secretary or an Assistant Secretary, and delivered to the Rights
         Agent.

                 "Corporate Trust Office" means the principal office of the
         Rights Agent at which it administers its corporate trust business,
         which, in the case of Harris Trust & Savings Bank shall, until
         hereafter changed, be its office at 1601 Elm Street, Suite 2320,
         Dallas, Texas, 75201.

                 "Distribution Date" shall mean the earlier of (i) the tenth
         Business Day after the Shares Acquisition Date or (ii) the tenth
         Business Day (or such later date as may be determined by action of the
         Board of Directors prior to such time as any Person becomes an
         Acquiring Person) after the date of commencement by any Person (other
         than the Company, any Subsidiary of the Company, any employee benefit
         plan of the Company or of any Subsidiary of the Company, or any
         trustee of or fiduciary with respect to any such plan when acting in
         such capacity) of, or after the date of the first public announcement
         of the intent of any Person (other than the Company, any Subsidiary of
         the Company, any employee benefit plan of the Company or of any
         Subsidiary of the Company, or any trustee of or fiduciary with respect
         to any such plan when acting in such capacity) to commence, a tender
         or exchange offer the consummation of which would result in any Person
         becoming the Beneficial Owner of 15% or more of the then outstanding
         Voting Shares of the Company; provided, however, that an occurrence
         described in clause (ii) of this definition above shall not cause the
         occurrence of the Distribution Date if the Board of Directors of the
         Company shall, prior to such tenth Business Day (or such later date as
         described in clause (ii) above), determine that such tender or
         exchange offer is spurious, unless, thereafter, the Board of Directors
         of the Company shall make a contrary determination, in which event the
         Distribution Date shall occur on the later to occur of such tenth
         Business Day (or such later date as described in clause (ii) above)
         and the date of such latter determination.

                 "Exchange Act" shall mean the Securities Exchange Act of 1934,
         as amended, and any successor statute thereto.

                 "Final Expiration Date" shall mean the Close of Business on
         November 21, 2007 .

                 "Person" shall mean any individual, firm, corporation,
         partnership, limited partnership, limited liability company, trust or
         other entity, and shall include any successor (by merger or otherwise)
         of such entity.





                                      -4-
<PAGE>   8
                 "Preferred Shares" shall mean shares of Series C Junior
         Participating Preferred Stock, no par value, of the Company having the
         rights and preferences set forth in the form of Certificate of
         Designation of Series C Junior Participating Preferred Stock attached
         hereto as Exhibit A.

                 "Purchase Price" shall mean the initial price at which the
         holder of a Right may, subject to the terms and conditions of this
         Agreement, purchase one one-thousandth (1/1000) of a Preferred Share
         (which initial price is set forth in Section 8(b) hereof), as such
         price shall be adjusted pursuant to the terms of this Agreement.

                 "Redemption Date" shall mean the time at which the Rights are
         redeemed pursuant to Section 24 herein or the time at which all of the
         Rights are mandatorily redeemed and exchanged pursuant to Section 25
         hereof.

                 "Redemption Price" shall have the meaning specified in Section
         24(b) herein.

                 "Right" shall mean one preferred share purchase right which
         initially represents the right of the registered holder thereof to
         purchase one one-thousandth (1/1000) of a Preferred Share upon the
         terms and subject to the conditions herein set forth.

                 "Right Certificate" shall mean a certificate, in substantially
         the form of Exhibit B attached to this Rights Agreement, evidencing
         the Rights registered in the name of the holder thereof.

                 "Rights Agent" shall mean Harris Trust & Savings Bank, a
         national banking association, and any successor thereto appointed in
         accordance with the terms hereof, in its capacity as agent for the
         Company and the holders of the Rights pursuant to this Agreement.

                 "Rights Register" and "Rights Registrar" shall have the 
         meanings specified in Section 6.

                 "Shares Acquisition Date" shall mean the first date of public
         announcement (which for purposes of this definition shall include
         without limitation a report filed pursuant to Section 13(d) or Section
         16(a) of the Exchange Act) by the Company or an Acquiring Person that
         an Acquiring Person has become such.

                 "Subsidiary" of any Person shall mean any corporation or other
         entity of which a majority of the outstanding capital stock or other
         equity interests having ordinary voting power in the election of
         directors or similar officials is owned, directly or indirectly, by
         such Person.

                 "Summary of Rights" shall mean a Summary of Rights to Purchase
         Preferred Shares in substantially the form attached as Exhibit C to
         this Agreement.





                                      -5-
<PAGE>   9
                "Trading Day" shall mean a day on which the principal national
         securities exchange on which any of the Voting Shares of the Company
         are listed or admitted to trading is open for the transaction of
         business or, if none of the Voting Shares of the Company is listed or
         admitted to trading on any national stock exchange, a Business Day.

                "Voting Shares" shall mean (i) the Common Shares of the Company
         and (ii) any other shares of capital stock of the Company entitled to
         vote generally in the election of directors or entitled to vote
         together with the Common Shares in respect of any merger or
         consolidation of the Company, any sale of all or substantially all of
         the Company's assets or any liquidation, dissolution or winding up of
         the Company. Whenever any provision of this Agreement requires a
         determination of whether a number of Voting Shares comprising a
         specified percentage of such Voting Shares is, was or will be
         beneficially owned or has been voted, tendered, acquired, sold or
         otherwise disposed of or a determination of whether a Person has
         offered or proposed to acquire a number of Voting Shares comprising
         such specified percentage, the number of Voting Shares comprising such
         specified percentage of Voting Shares shall in every such case be
         deemed to be the number of Voting Shares comprising the specified
         percentage of all the Company's then outstanding Voting Shares.

              "Wholly-Owned Subsidiary" of a Person shall mean any corporation 
         or other entity all the outstanding capital stock or other equity 
         interests of which having ordinary voting power in the election of 
         directors or similar officials (other than directors' qualifying
         shares or similar interests) are owned, directly or indirectly, by
         such Person.

         Section 2.  Appointment of Rights Agent.  The Company hereby appoints
the Rights Agent to act as agent for the Company and the holders of the Rights
(who, in accordance with Section 3 hereof, shall prior to the Distribution Date
also be the holders of the Common Shares of the Company) in accordance with the
terms and conditions hereof, and the Rights Agent hereby accepts such
appointment.  The Company may from time to time appoint such co-Rights Agents
as it may deem necessary or desirable.

         Section 3.  Issue of Right Certificates.  (a) From and after November
21, 1997 until the Distribution Date, (i) outstanding Rights will be evidenced
(subject to the provisions of paragraph (b) of this Section 3) by the
certificates for outstanding Common Shares of the Company and not by separate
Right Certificates, and (ii) the right to receive Right Certificates will be
transferable only in connection with the transfer of Common Shares of the
Company.  As soon as practicable after the Distribution Date, the Rights Agent
will send at the expense of the Company, by first-class, insured,
postage-prepaid mail, to each record holder of Common Shares of the Company as
of the Close of Business on the Distribution Date, at the address of such
holder shown on the stock transfer records of the Company, a Right Certificate
evidencing one Right for each Common Share so held.  From and after the
Distribution Date, the Rights will be evidenced solely by such Right
Certificates.

                 (b)      On November 21, 1997, or as soon thereafter as
practicable, the Company will send a copy of a Summary of Rights, by
first-class, postage-prepaid mail, to each record holder of Common Shares of
the Company as of the Close of Business on November 21, 1997, at





                                      -6-
<PAGE>   10
the address of such holder shown on the stock transfer records of the Company.
With respect to Common Shares outstanding on November 21, 1997, the
certificates evidencing such Common Shares shall, together with copies of such
Summary of Rights, thereafter also evidence the outstanding Rights (as such
Rights may be amended or supplemented) distributed with respect thereto until
the earlier of the Distribution Date or the date of surrender thereof to the
Company's transfer agent for registration of transfer or exchange of Common
Shares.  Until the Distribution Date (or, if earlier, the Redemption Date or
Final Expiration Date), the surrender for registration of transfer or exchange
of any certificate for Common Shares outstanding as of the Close of Business on
November 21, 1997, with or without a copy of the Summary of Rights attached
thereto, shall also constitute the surrender for registration of transfer or
exchange of the outstanding Rights associated with the Common Shares
represented thereby.

                 (c)      The Company agrees that, at any time after November
21, 1997 and prior to the Distribution Date (or, if earlier, the Redemption
Date or Final Expiration Date) at which it issues any of its Common Shares upon
original issue or out of treasury, it will concurrently distribute to the
holder of such Common Shares one Right for each such Common Share, which Right
shall be subject to the terms and provisions of this Agreement and will
evidence the right to purchase the same number of one one-thousandths (1/1000)
of a Preferred Share at the same Purchase Price as the Rights then outstanding.

                 (d)      Certificates for Common Shares issued after November
21, 1997 but prior to the earliest of the Distribution Date, the Redemption
Date and the Final Expiration Date, whether upon registration of transfer or
exchange of Common Shares outstanding on November 21, 1997 or upon original
issue or out of treasury thereafter, shall have impressed on, printed on,
written on or otherwise affixed to them the following legend:

                 This certificate also evidences and entitles the holder hereof
         to certain Rights as set forth in a Rights Agreement between ICO, Inc.
         and Harris Trust & Savings Bank, dated as of November 20, 1997 (the
         "Rights Agreement"), the terms of which are hereby incorporated herein
         by reference and a copy of which is on file at the principal executive
         offices of ICO, Inc.  Under certain circumstances, as set forth in the
         Rights Agreement, such Rights will be evidenced by separate
         certificates and will no longer be evidenced by this certificate.
         ICO, Inc. will mail to the holder of this certificate a copy of the
         Rights Agreement without charge after receipt of a written request
         therefor.  As described in the Rights Agreement, Rights issued to or
         acquired by any Acquiring Person or any Affiliate or Associate thereof
         (each as defined in the Rights Agreement) shall, under certain
         circumstances, become null and void.

With respect to certificates containing the foregoing legend, until the
Distribution Date, outstanding Rights associated with the Common Shares
represented by such certificates shall be evidenced by such certificates alone,
and the surrender of any such certificate for registration of transfer or
exchange of the Common Shares evidenced thereby shall also constitute surrender
for registration of transfer or exchange of outstanding Rights (as such Rights
may be amended or supplemented) associated with the Common Shares represented
thereby.





                                      -7-
<PAGE>   11
         (e)     If the Company purchases or acquires any of its Common Shares
after November 21, 1997, but prior to the Distribution Date, any Rights
associated with such Common Shares shall be deemed canceled and retired so that
the Company shall not be entitled to exercise any Rights associated with the
Common Shares which are no longer outstanding.

         Section 4.  Form of Right Certificates.  The form of Right
Certificates (and the forms of election to purchase Preferred Shares (or other
securities) and of assignment to be printed on the reverse thereof) shall in
form and substance be substantially the same as Exhibit B hereto and may have
such marks of identification or designation and such legends, summaries or
endorsements printed thereon as the Company may deem appropriate and as are not
inconsistent with the provisions of this Agreement, as may be required to
comply with any applicable law or with any rule or regulation made pursuant
thereto or with any rule or regulation of any stock exchange on which the
Rights may from time to time be listed or as may be necessary to conform to
usage.  Subject to the provisions of Section 23 hereof, the Right Certificates,
whenever issued, shall be dated as of the date of authentication thereof, but,
regardless of any adjustments of the Purchase Price or the number of Preferred
Shares (or other securities) as to which a Right is exercisable (whether
pursuant to this Agreement or any future amendments or supplements to this
Agreement), or both, occurring after November 21, 1997 and prior to the date of
such authentication, such Right Certificates may, on their face, without
invalidating or otherwise affecting any such adjustment, expressly entitle the
holders thereof to purchase such number of Preferred Shares at the Purchase
Price per one one-thousandth (1/1000) of a Preferred Share as to which a Right
would be exercisable if the Distribution Date were November 21, 1997; no
adjustment of the Purchase Price or the number of Preferred Shares (or other
securities) as to which a Right is exercisable, or both, effected subsequent to
the date of authentication of any Right Certificate shall be invalidated or
otherwise affected by the fact that such adjustment is not expressly reflected
on the face or in the provisions of such Right Certificate.

         Pending the preparation of definitive Right Certificates, the Company
may execute, and upon Company Order the Rights Agent shall authenticate and
send, by first-class, insured, postage-prepaid mail, to each record holder of
Common Shares of the Company as of the Close of Business on the Distribution
Date, temporary Right Certificates which are printed, lithographed,
typewritten, mimeographed or otherwise produced substantially of the tenor of
the definitive Right Certificates in lieu of which they are issued and with
such appropriate insertions, omissions, substitutions and other variations as
the officers executing such Right Certificates may determine, as evidenced by
their execution of such Right Certificates.

         If temporary Right Certificates are issued, the Company will cause
definitive Right Certificates to be prepared without unreasonable delay.  After
the preparation of definitive Right Certificates, the temporary Right
Certificates shall be exchangeable for definitive Right Certificates, upon
surrender of the temporary Right Certificates at the Corporate Trust Office of
the Rights Agent, without charge to the holder.  Upon surrender for
cancellation of any one or more temporary Right Certificates, the Company shall
execute and the Rights Agent shall authenticate and deliver in exchange
therefor one or more definitive Right Certificates, evidencing a like number of
Rights.  Until so exchanged, the temporary Right Certificates shall in all
respects be entitled to the same benefits under this Agreement as definitive
Right Certificates.





                                      -8-
<PAGE>   12
         Section 5.  Execution, Authentication and Delivery.  The Right
Certificates shall be executed on behalf of the Company by its Chairman of the
Board, its President or one of its Vice Presidents, under its corporate seal
reproduced thereon attested by its Secretary or one of its Assistant
Secretaries.  The signature of any of these officers on the Right Certificates
may be manual or facsimile.

         Right Certificates bearing the manual or facsimile signatures of
individuals who were at any time the proper officers of the Company shall bind
the Company, notwithstanding that such individuals or any of them have ceased
to hold such offices prior to the authentication and delivery of such Right
Certificates or did not hold such offices at the date of authentication of such
Right Certificates.  At any time and from time to time after the execution and
delivery of this Agreement and prior to the Distribution Date, the Company may
deliver Right Certificates executed by the Company to the Rights Agent for
authentication, together with a Company Order for the authentication and
delivery of such Right Certificates; and the Rights Agent in accordance with
such Company Order shall authenticate and deliver such Right Certificates as in
this Agreement provided and not otherwise.

         No Right Certificate shall be entitled to any benefit under this
Agreement or be valid or obligatory for any purpose unless there appears on
such Right Certificate a certificate of authentication substantially in the
form provided for herein executed by the Rights Agent by manual signature, and
such certificate upon any Right Certificate shall be conclusive evidence, and
the only evidence, that such Right Certificate has been duly authenticated and
delivered hereunder.

         Section 6.  Registration, Registration of Transfer and Exchange.  From
and after the Distribution Date and prior to the earlier of the Redemption Date
and the Final Expiration Date, the Company shall cause to be kept at the
Corporate Trust Office of the Rights Agent a Rights Register (a "Rights
Register") in which, subject to such reasonable regulations as it may
prescribe, the Company shall provide for the registration of Right Certificates
and of transfers of Rights.  The Rights Agent is hereby appointed the registrar
and transfer agent (the "Rights Registrar") for the purpose of registering
Right Certificates and transfers of Rights as herein provided and the Rights
Agent agrees to maintain such Rights Register in accordance with such
regulations so long as it continues to be designated as Rights Registrar
hereunder.

         Upon surrender to the Rights Agent for registration of transfer of any
Right Certificate, the Company shall execute, and the Rights Agent shall
authenticate and deliver, in the name of the designated transferee or
transferees, one or more new Right Certificates evidencing a like number of
Rights.

         At the option of the holder, Right Certificates may be exchanged for
other Right Certificates upon surrender of the Right Certificates to be
exchanged to the Rights Agent.  Whenever any Right Certificates are so
surrendered for exchange, the Company shall execute, and the Rights Agent shall
authenticate and deliver, the Right Certificates which the holder making the
exchange is entitled to receive.





                                      -9-
<PAGE>   13
         All Right Certificates issued upon any registration of transfer or
exchange of Right Certificates shall be the valid obligations of the Company,
evidencing the same Rights, and entitled to the same benefits under this
Agreement, as the Right Certificates surrendered upon such registration of
transfer or exchange.

         Every Right Certificate presented or surrendered for registration of
transfer or exchange shall (if so required by the Company or the Rights Agent)
be duly endorsed, or accompanied by a written instrument of transfer in form
satisfactory to the Company and the Rights Registrar duly executed, by the
holder thereof or his attorney duly authorized in writing.

         No service charge shall be made for any registration of transfer or
exchange of Right Certificates, 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 registration of transfer or exchange of Right Certificates,
other than exchanges not involving any transfer.

         The provisions of this Section 6 shall be subject to the provisions of
Section 15.

         Section 7.  Mutilated, Destroyed, Lost and Stolen Right Certificates.
If any mutilated Right Certificate is surrendered to the Rights Agent, the
Company shall execute and the Rights Agent shall authenticate and deliver in
exchange therefor a new Right Certificate of like tenor, for a like number of
Rights and bearing a registration number not contemporaneously outstanding.

         If there shall be delivered to the Company and the Rights Agent (i)
evidence to their satisfaction of the destruction, loss or theft of a Right
Certificate and (ii) such security or indemnity, if any, as may be required by
them to save each of them and any agent of either of them harmless, then, in
the absence of notice to the Company or the Rights Agent that such Right
Certificate has been acquired by a bona fide purchaser, the Company shall
execute and upon its request the Rights Agent shall authenticate and deliver,
in lieu of any such destroyed, lost or stolen Right Certificate, a new Right
Certificate of like tenor, for a like number of Rights and bearing a
registration number not contemporaneously outstanding.

         Upon the issuance of any new Right Certificate under this Section, the
Company may require the payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in relation thereto and any other
expenses (including the fees and expenses of the Rights Agent) connected
therewith.

         Every new Right Certificate issued pursuant to this Section in lieu of
any destroyed, lost or stolen Right Certificate shall constitute an additional
contractual obligation of the Company, whether or not the destroyed, lost or
stolen Right Certificate shall be at any time enforceable by anyone, and shall
be entitled to all the benefits of this Agreement equally and proportionately
with any and all other Right Certificates duly issued hereunder.

         The provisions of this Section are exclusive and shall preclude (to
the extent lawful) all other rights and remedies with respect to the
replacement or payment of mutilated, destroyed, lost or stolen Right
Certificates.





                                      -10-
<PAGE>   14
         Section 8.  Exercise of Rights; Purchase Price; Expiration Date of
Rights.  (a) The registered holder of any Right Certificate may exercise the
Rights evidenced thereby (except as otherwise provided herein) in whole or in
part at any time after the Distribution Date upon surrender of the Right
Certificate, with the form of election to purchase on the reverse side thereof
duly executed, to the Rights Agent at its Corporate Trust Office, together with
payment of the Purchase Price for each one one-thousandth (1/1000) of a
Preferred Share (or other securities) as to which the Rights are exercised, at
or prior to the earliest of (i) the Close of Business on the Final Expiration
Date, (ii) the time of redemption on the Redemption Date or (iii) the time at
which such Rights are mandatorily redeemed and exchanged as provided in Section
25 hereof.

                 (b)      The Purchase Price for each one one-thousandth
(1/1000) of a Preferred Share pursuant to the exercise of a Right shall
initially be Thirty and no\hundredths dollars ($30.00), shall be subject to
adjustment from time to time as provided in Sections 12 and 14 hereof and shall
be payable in lawful money of the United States of America in accordance with
paragraph (c) below.

                 (c)      Upon receipt of a Right Certificate representing
exercisable Rights, with the form of election to purchase duly executed,
accompanied by payment of the Purchase Price for the securities to be purchased
and an amount equal to any applicable transfer tax required to be paid by the
holder of such Right Certificate in accordance with Section 10 in cash, or by
certified check or cashier's check payable to the order of the Company, the
Rights Agent shall thereupon promptly (i) (A) requisition from any transfer
agent of the Preferred Shares (or other securities) certificates for such
number of one one-thousandths of a Preferred Share (or other securities) as are
to be purchased and registered in such name or names as may be designated by
the registered holder of such Right Certificate or, if appropriate, in the name
of a depositary agent or its nominee, and the Company hereby irrevocably
authorizes its transfer agent to comply with all such requests, and (B)
requisition from a depositary agent appointed by the Company, if any,
depositary receipts representing such number of one one-thousandths of a
Preferred Share as are to be purchased and registered in such name or names as
may be designated by such holder (in which case certificates for the Preferred
Shares represented by such receipts shall be deposited by the transfer agent
with such depositary agent), and the Company hereby directs such depositary
agent to comply with all such requests, (ii) when appropriate, requisition from
the Company the amount of cash to be paid in lieu of issuance of fractional
shares in accordance with Section 15, (iii) promptly after receipt of such
certificates or depositary receipts registered in such name or names as may be
designated by such holder, cause the same to be delivered to or upon the order
of the registered holder of such Right Certificate and (iv) when appropriate,
after receipt, promptly deliver such cash to or upon the order of such holder.

                 (d)      If the registered holder of the Right Certificate
shall exercise less than all the Rights evidenced thereby, a new Right
Certificate evidencing Rights equal to the Rights remaining unexercised shall
be issued by the Rights Agent to the registered holder of such Right
Certificate or to his duly authorized assigns, subject to the provisions of
Section 15 hereof.

         Section 9.  Cancellation and Destruction of Right Certificates.  All
Right Certificates surrendered for the purpose of exercise, transfer or
exchange shall, if surrendered to the Company or to any of its other agents, be
delivered to the Rights Agent for such purpose and for





                                      -11-
<PAGE>   15
cancellation or, if surrendered to the Rights Agent for such purpose, shall be
canceled by it.  No Right Certificates shall be authenticated in lieu of or in
exchange for any Right Certificates canceled as provided in this Section 9
except as expressly permitted by any of the provisions of this Agreement.  The
Company shall deliver to the Rights Agent for cancellation, and the Rights
Agent shall so cancel, any other Right Certificate purchased or acquired by the
Company.  The Rights Agent shall deliver all canceled Right Certificates to the
Company, or shall, pursuant to a Company Order, destroy such canceled Right
Certificates and in such case shall deliver a certificate of destruction
thereof to the Company.

         Section 10.  Reservation and Availability of Shares.  The Company
covenants and agrees that it will cause to be reserved and kept available out
of its authorized and unissued Preferred Shares or any Preferred Shares held in
its treasury, the number of Preferred Shares that will be sufficient to permit
the exercise in full of all outstanding Rights; provided, however, that the
Company will not be required to reserve and keep available Common Shares or
other securities sufficient to permit the exercise in full of all outstanding
Rights pursuant to the adjustments set forth in Section 12(a)(ii) or Section 14
until such time as the Rights become exercisable pursuant to such adjustments.

         The Company covenants and agrees that it will take all such action as
may be necessary to ensure that all Preferred Shares or Common Shares of the
Company issued upon exercise of Rights shall (subject to payment of the
Purchase Price) be duly authorized, validly issued, fully paid and
nonassessable.  The Company further covenants and agrees that it will pay when
due and payable any and all federal and state transfer taxes and charges which
may be payable in respect of the issuance or delivery of the Right Certificates
or of any Preferred Shares (or depositary receipts therefor) or Common Shares
of the Company upon the exercise of Rights.  The Company shall not, however, be
required to pay any transfer tax which may be payable in respect of any
transfer or delivery of Right Certificates to a Person other than, or in
respect of the issuance or delivery of certificates or depositary receipts for
the Preferred Shares or Common Shares of the Company upon exercise of Rights
evidenced by Right Certificates in a name other than that of, the registered
holder of the Right Certificate evidencing Rights surrendered for transfer or
exercise or to issue or deliver any certificates or depositary receipts for
Preferred Shares or Common Shares of the Company upon the exercise of any
Rights until any such tax shall have been paid (any such tax being payable by
the holder of such Right Certificate at the time of surrender thereof) or until
it has been established to the Company's satisfaction that no such tax is due.

         Section 11.  Record Date.  Each Person in whose name any certificate
for Preferred Shares or Common Shares of the Company is issued upon the
exercise of, or upon mandatory redemption and exchange of, Rights shall for all
purposes be deemed to have become the holder of record of the Preferred Shares
or Common Shares represented thereby on, and such certificate shall be dated,
(i) in the case of the exercise of Rights, the date upon which the Right
Certificate evidencing such Rights was duly surrendered and payment of the
Purchase Price (and any applicable transfer taxes) was made, or (ii) in the
case of the mandatory redemption and exchange of Rights, the date of such
mandatory redemption and exchange; provided, however, that, if the date of such
surrender and payment or mandatory redemption and exchange is a date upon which
the transfer books of the Company for its Preferred Shares or Common Shares, as
the





                                      -12-
<PAGE>   16
case may be, are closed, such Person shall be deemed to have become the record
holder of such shares on, and such certificate shall be dated, the next
succeeding Business Day on which such transfer books of the Company are open.
Prior to the exercise of (or the mandatory redemption and exchange of) the
Rights evidenced thereby, the holder of a Right Certificate shall not be
entitled to any rights of a holder of Preferred Shares (or Common Shares of the
Company) for which the Rights shall be exercisable, including without
limitation the rights to vote, to receive dividends or other distributions or
to exercise any preemptive rights, and shall not be entitled to receive any
notice of any proceedings of the Company, except as provided herein.

         Section 12.  Adjustment of Purchase Price, Number of Shares or Number
of Rights.  The Purchase Price, the number and kind of shares of capital stock
of the Company covered by each Right and the number of Rights outstanding are
subject to adjustment from time to time as provided in this Section 12.

                 (a)      (i)  If the Company shall at any time (A) declare a
dividend on the Preferred Shares payable in Preferred Shares, (B) subdivide the
outstanding Preferred Shares, (C) combine the outstanding Preferred Shares into
a smaller number of Preferred Shares or (D) issue any shares of its capital
stock in a reclassification of the Preferred Shares (including any such
reclassification in connection with a consolidation or merger in which the
Company is the continuing or surviving corporation), except as otherwise
provided in this Section 12(a), the Purchase Price in effect at the time of the
record date for such dividend or of the effective date of such subdivision,
combination or reclassification, and the number and kind of shares of capital
stock issuable on such date, shall be proportionately adjusted so that the
holder of any Right exercised thereafter shall be entitled to receive, upon
payment of the Purchase Price for the number of one one-thousandths of a
Preferred Share for which a Right was exercisable immediately prior to such
date, the aggregate number and kind of shares of capital stock which, if such
Right had been duly exercised immediately prior to such date (at a time when
the Preferred Shares transfer books of the Company were open), such holder
would have acquired upon such exercise and been entitled to receive upon
payment or effectuation of such dividend, subdivision, combination or
reclassification; provided, however, that in no event shall the consideration
to be paid upon the exercise of one Right be less than the aggregate par value
of the shares of capital stock of the Company issuable upon exercise of one
Right.  If an event occurs which would require an adjustment under both Section
12(a)(i) and Section 12(a)(ii), the adjustment provided for in this Section
12(a)(i) shall be in addition to, and shall be made prior to, any adjustment
required pursuant to Section 12(a)(ii).

                 (ii)  Subject to action of the Board of Directors of the
Company pursuant to Section 25 of this Agreement, if any Person shall become an
Acquiring Person, each holder of a Right shall thereafter have a right to
receive, upon exercise thereof at a price equal to the then current Purchase
Price multiplied by the number of one one- thousandths of a Preferred Share for
which a Right is then exercisable, in accordance with the terms of this
Agreement and in lieu of Preferred Shares, such number of Common Shares of the
Company as shall equal the result obtained by (x) multiplying the then current
Purchase Price by the number of one one-thousandths of a Preferred Share for
which a Right is then exercisable and dividing that product by (y) 50% of the
then current per share market price of the Company's Common Shares (determined
pursuant to Section 12(d)) on the date such Person became an Acquiring Person.
If





                                      -13-
<PAGE>   17
any Person shall become an Acquiring Person and the Rights shall then be
outstanding, the Company shall not take any action which would eliminate or
diminish the benefits intended to be afforded by the Rights.

         Notwithstanding any other provision of this Agreement, from and after
the time any Person shall become an Acquiring Person, any Rights that are or
were acquired or beneficially owned by any such Acquiring Person (or any
Associate or Affiliate of such Acquiring Person) shall be null and void and any
holder of such Rights shall thereafter have no right to exercise such Rights
under any provision of this Agreement.  No Right Certificate shall be issued
pursuant to this Agreement that represents Rights beneficially owned by an
Acquiring Person whose Rights would be null and void pursuant to the preceding
sentence or by any Associate or Affiliate thereof; no Right Certificate shall
be issued at any time upon the transfer of any Rights to an Acquiring Person
whose Rights would be null and void pursuant to the preceding sentence or to
any Associate or Affiliate thereof or to any nominee (acting in its capacity as
such) of such Acquiring Person, Associate or Affiliate; and any Right
Certificate delivered to the Rights Agent for transfer to an Acquiring Person
whose Rights would be null and void pursuant to the preceding sentence or to
any Associate or Affiliate thereof or to any nominee (acting in its capacity as
such) of such Acquiring Person, Associate or Affiliate shall be canceled.

         (iii)  If on or after the Distribution Date there shall not be
sufficient Common Shares issued but not outstanding, or authorized but
unissued, to permit the exercise in full of all outstanding Rights in
accordance with the foregoing subparagraph (ii), the Company agrees to take all
such action as is within its power, including without limitation appropriate
action by its Board of Directors, as may be necessary to amend the Company's
articles of incorporation to authorize additional Common Shares for issuance
upon exercise of the Rights.  If, notwithstanding the foregoing, the
shareholders shall not approve an amendment to the Company's articles of
incorporation authorizing such additional Common Shares, the adjustment
prescribed in Section 12(a)(ii) shall not be made but, in lieu thereof, each
holder of a Right shall thereafter have the right to receive, upon exercise
thereof in accordance with the terms of this Agreement, such number of one
one-thousandths of Preferred Shares as shall equal the result obtained by (x)
multiplying the then current Purchase Price by the number of one
one-thousandths of a Preferred Share for which a Right is then exercisable and
dividing that product by (y) 50% of the then current per share market price of
one one-thousandth of a Preferred Share (determined pursuant to Section 12(d))
on the date such Person became an Acquiring Person.

         (b)     If the Company shall fix a record date for the issuance of
rights, options or warrants to all holders of Preferred Shares entitling them
(for a period expiring within 45 calendar days after such record date) to
subscribe for or purchase Preferred Shares (or shares having the same rights,
privileges and preferences as the Preferred Shares ("equivalent preferred
shares")) or securities convertible into or exchangeable for Preferred Shares
or equivalent preferred shares at a price per Preferred Share or equivalent
preferred share (together with any additional consideration required upon
conversion or exchange in the case of a security convertible into or
exchangeable for Preferred Shares or equivalent preferred shares), less than
the current per share market price of the Preferred Shares (determined pursuant
to Section 12(d) on such record date), the Purchase Price to be in effect after
such record date shall be determined by multiplying the Purchase Price in
effect immediately prior to such record date by a fraction, the





                                      -14-
<PAGE>   18
numerator of which shall be the number of Preferred Shares outstanding on such
record date plus the number of Preferred Shares which the aggregate offering
price of the total number of Preferred Shares and/or equivalent preferred
shares so to be offered (together with the aggregate of any additional
consideration required upon conversion or exchange in the case of any
convertible or exchangeable securities so to be offered) would purchase at such
current market price and the denominator of which shall be the number of
Preferred Shares outstanding on such record date plus the number of additional
Preferred Shares and/or equivalent preferred shares to be offered for
subscription or purchase (or into or for which the convertible or exchangeable
securities so to be offered are initially convertible or exchangeable);
provided, however, that in no event shall the consideration to be paid upon the
exercise of one Right be less than the aggregate par value of the shares of
capital stock of the Company issuable upon exercise of one Right.  In case all
or part of such subscription or purchase price may be paid in a form other than
cash, the value of such consideration shall be as determined in good faith by
the Board of Directors of the Company, whose determination shall be described
in a statement filed with the Rights Agent.  Preferred Shares owned by or held
for the account of the Company or any of its Subsidiaries shall not be deemed
outstanding for the purpose of any computation described in this Section 12(b).
The adjustment described in this Section 12(b) shall be made successively
whenever such a record date is fixed; and, if none of such rights, options or
warrants is so issued, the Purchase Price shall be adjusted to be the Purchase
Price which would then be in effect if such record date had not been fixed.

         (c)     If the Company shall fix a record date for the making of a
distribution to all holders of the Preferred Shares (including any such
distribution made in connection with a consolidation or merger in which the
Company is the continuing or surviving corporation) of evidences of
indebtedness or assets (other than a regular quarterly cash dividend or a
dividend payable in Preferred Shares) or subscription rights or warrants
(excluding those referred to in Section 12(b)), the Purchase Price to be in
effect after such record date shall be determined by multiplying the Purchase
Price in effect immediately prior to such record date by a fraction, the
numerator of which shall be the then current per share market price of the
Preferred Shares (determined pursuant to Section 12(d)) on such record date,
less the fair market value (as determined in good faith by the Board of
Directors of the Company, whose determination shall be described in a statement
filed with the Rights Agent) of the portion of the assets or evidences of
indebtedness so to be distributed or of such subscription rights or warrants
applicable to one Preferred Share and the denominator of which shall be such
current per share market price of the Preferred Shares; provided, however, that
in no event shall the consideration to be paid upon the exercise of one Right
be less than the aggregate par value of the shares of capital stock of the
Company to be issued upon the exercise of one Right.  Such adjustments shall be
made successively whenever such a record date is fixed; and, if such
distribution is not so made, the Purchase Price shall again be adjusted to be
the Purchase Price which would then be in effect if such record date had not
been fixed.

         (d)(i)  For the purpose of any computation hereunder, the "current per
share market price" of the Common Shares on any date shall be deemed to be the
average of the daily Closing Prices per share of such Common Shares for the 30
consecutive Trading Days immediately prior to such date; provided, however,
that, if the issuer of such Common Shares shall announce (A) a dividend or
distribution on such Common Shares payable in such Common Shares or securities





                                      -15-
<PAGE>   19
convertible into such Common Shares or (B) any subdivision, combination or
reclassification of such Common Shares, and the ex-dividend date for such
dividend or distribution, or the record date for such subdivision, combination
or reclassification, shall occur during such period of 30 Trading Days, then,
and in each such case, the current per share market price of the Common Shares
shall be appropriately adjusted to reflect the current market price per Common
Share equivalent.

                 (ii)     For the purpose of any computation hereunder, the
"current per share market price" of the Preferred Shares shall be determined in
the same manner as set forth above for Common Shares in paragraph (i) of this
Section 12(d).  If the current per share market price of the Preferred Shares
cannot be determined in the manner provided above, the "current per share
market price" of the Preferred Shares shall be conclusively deemed to be the
current per share market price of the Common Shares (determined in the manner
provided above) multiplied by one thousand.

         (e)     No adjustment in the Purchase Price shall be required unless
such adjustment would require an increase or decrease of at least 1% in the
Purchase Price; provided; however, that any adjustments which by reason of this
Section 12(e) are not required to be made shall be carried forward and taken
into account in any subsequent adjustment.  All calculations under this Section
12 shall be made to the nearest cent or to the nearest ten-thousandth of a
Common Share or other share or one ten-millionth of a Preferred Share, as the
case may be, and references herein to the "number of one one-thousandths of a
Preferred Share" (or similar phrases) shall be construed to include fractions
of one one-thousandth of a Preferred Share.  Notwithstanding the first sentence
of this Section 12(e), any adjustment required by this Section 12 shall be made
no later than the earlier of (i) three years from the date of the transaction
which requires such adjustment or (ii) the thirtieth day preceding the Final
Expiration Date.

         (f)     If as a result of an adjustment made pursuant to Section
12(a), the holder of any Right thereafter exercised shall become entitled to
receive any shares of capital stock of the Company other than Preferred Shares,
thereafter the number of such other shares so receivable upon exercise of any
Right 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
shares contained in this Section 12, and the provisions of this Agreement,
including without limitation Sections 8, 10, 11 and 14, with respect to the
Preferred Shares shall apply on like terms to any such other shares.

         (g)     All Rights originally issued by the Company subsequent to any
adjustment made to the Purchase Price hereunder shall, whether or not the Right
Certificate evidencing such Rights reflects such adjusted Purchase Price,
evidence the right to purchase, at the adjusted Purchase Price, the number of
one one-thousandths of a Preferred Share purchasable from time to time
hereunder upon exercise of the Rights, all subject to further adjustment as
provided herein.

         (h)     Unless the Company shall have exercised its election as
provided in Section 12(i), upon each adjustment of the Purchase Price pursuant
to Section 12(b) or 12(c), each Right outstanding immediately prior to the
making of such adjustment shall thereafter evidence the right to purchase, at
the adjusted Purchase Price per one one-thousandth of a Preferred Share, that





                                      -16-
<PAGE>   20
number of one one-thousandths of a Preferred Share obtained by (i) multiplying
(x) the number of one-thousandths of a share covered by a Right immediately
prior to this adjustment by (y) the Purchase Price in effect immediately prior
to such adjustment of the Purchase Price and (ii) dividing the product so
obtained by the Purchase Price in effect immediately after such adjustment of
the Purchase Price.

         (i)     The Company may elect on or after the date of any adjustment
of the Purchase Price to adjust the number of Rights outstanding in lieu of any
adjustment in the number of one one-thousandths of a Preferred Share
purchasable upon the exercise of a Right.  Each Right outstanding after such
adjustment of the number of Rights shall be exercisable for the number of one
one-thousandths of a Preferred Share for which a Right was exercisable
immediately prior to such adjustment of the Purchase Price.  Each Right held of
record prior to such adjustment of the number of Rights shall become that
number of Rights (calculated to the nearest one ten-thousandth) obtained by
dividing the Purchase Price in effect immediately prior to adjustment of the
Purchase Price by the Purchase Price in effect immediately after adjustment of
the Purchase Price.  The Company shall make a public announcement of its
election to adjust the number of Rights, indicating the record date for the
adjustment, and, if known at the time, the amount of the adjustment to be made.
This record date may be the date on which the Purchase Price is adjusted or any
day thereafter, but, if the Right Certificates have been issued, shall be at
least 10 days later than the date of the public announcement.  Until such
record date, however, any adjustment in the number of one one-thousandths of a
Preferred Share for which a Right shall be exercisable made as required by this
Agreement shall remain in effect.  If Right Certificates have been issued, upon
each adjustment of the number of Rights pursuant to this Section 12(i), the
Company shall, as promptly as practicable, cause to be distributed to holders
of record of Right Certificates on such record date Right Certificates
evidencing, subject to Section 15 hereof, the additional Rights to which such
holders shall be entitled as a result of such adjustment, or, at the option of
the Company, shall cause to be distributed to such holders of record in
substitution and replacement for the Right Certificates held by such holders
prior to the date of adjustment, and upon surrender thereof, if required by the
Company, new Right Certificates evidencing all the Rights to which such holders
shall be entitled after such adjustment.  Right Certificates so to be
distributed shall be issued, executed and authenticated in the manner provided
for herein and shall be registered in the names of the holders of record of
Right Certificates on the record date specified in the public announcement.

         (j)     Irrespective of any adjustment or change in the Purchase Price
or the number of one one-thousandths of a Preferred Share issuable upon the
exercise of the Rights, the Right Certificates theretofore and thereafter
issued may continue to express the Purchase Price and the number of one
one-thousandths of a Preferred Share which were expressed in the initial Right
Certificates issued hereunder.

         (k)     Before taking any action that would cause an adjustment
reducing the Purchase Price below one one- thousandth of the amount of
consideration per Preferred Share determined by the Board of Directors of the
Company to be capital, or below one one-thousandth of the par value, if any,
per Preferred Share issuable upon exercise of the Rights, the Company agrees to
take such corporate action as is within its power, including without limitation
appropriate action by its Board of Directors, and which is, in the opinion of
its counsel, necessary in order that the





                                      -17-
<PAGE>   21
Company may validly and legally issue fully paid and nonassessable one
one-thousandths of Preferred Shares at such adjusted Purchase Price.

         (l)     In any case in which this Section 12 shall require that an
adjustment in the Purchase Price be made effective as of a record date for a
specified event, the Company may elect to defer until the occurrence of such
event the issuance to the holder of any Right exercised after such record date
of the Preferred Shares or other capital stock or securities of the Company, if
any, issuable upon such exercise over and above the Preferred Shares or other
capital stock or securities of the Company, if any, issuable upon such exercise
on the basis of the Purchase Price in effect prior to such adjustment;
provided, however, that the Company shall deliver to such holder a due bill or
other appropriate instrument evidencing such holder's right to receive such
additional securities upon the occurrence of the event requiring such
adjustment.

         (m)     Anything in this Section 12 to the contrary notwithstanding,
the Company shall be entitled to make such reductions in the Purchase Price, in
addition to those adjustments expressly required by this Section 12, as and to
the extent that it in its sole discretion shall determine to be advisable in
order that any combination or subdivision of the Preferred Shares, issuance
wholly for cash of any of the Preferred Shares at less than the current market
price, issuance wholly for cash of Preferred Shares or securities which by
their terms are convertible into or exchangeable for Preferred Shares,
dividends on Preferred Shares payable in Preferred Shares or issuance of
rights, options or warrants referred to in subsection (b) of this Section 12,
hereafter effected by the Company to holders of its Preferred Shares shall not
be taxable to such shareholders.

         (n)     If at any time prior to the Distribution Date, the Company
shall (i) declare or pay any dividend on the Common Shares payable in Common
Shares or (ii) effect a subdivision or combination of the Common Shares (by
reclassification or otherwise than by payment of dividends in Common Shares)
into a greater or lesser number of Common Shares, then in any such case (i) the
Purchase Price in effect at the time of the record date for such dividend or of
the effective date of such subdivision or combination shall be adjusted by
multiplying such Purchase Price by a fraction, the numerator of which is the
number of Common Shares outstanding immediately before such event and the
denominator of which is the number of Common Shares outstanding immediately
after such event, and (ii) the number of Rights outstanding immediately after
such event shall be adjusted, either through cancellation of outstanding Rights
or through distribution of additional Rights (but without duplication of the
Company's obligations under Section 3(c)), so that the certificate evidencing
each Common Share outstanding immediately after such event shall also evidence
the associated Right to purchase the same number of one one-thousandths of a
Preferred Share as to which a Right would have entitled the holder thereof to
purchase immediately prior to such event.  The adjustment provided for in this
Section 12(n) shall be made successively whenever such a dividend is declared
or paid or such a subdivision or combination is effected.  If an event occurs
which would require an adjustment under Section 12(a)(ii) and this Section
12(n), the adjustments provided for in this Section 12(n) shall be in addition
and prior to any adjustment required pursuant to Section 12(a)(ii).

         Section 13.  Certificate of Adjusted Purchase Price or Number of
Shares.  Whenever an adjustment is made as provided in Section 12 or 14 hereof,
the Company shall (a) promptly prepare a certificate setting forth such
adjustment, and a brief statement of the facts accounting





                                      -18-
<PAGE>   22
for such adjustment, (b) promptly file with the Rights Agent and with each
transfer agent for the Common Shares of the Company and the Preferred Shares a
copy of such certificate and (c) mail a brief summary thereof to each holder of
record of a Right Certificate in accordance with Section 28 hereof.  The Rights
Agent shall be fully protected in relying on any adjustment therein contained
and shall not be obligated or responsible for calculating any adjustments nor
shall it be deemed to have knowledge of such an adjustment unless and until it
shall have received such certificate.

         Section 14.  Consolidation, Merger or Sale or Transfer of Assets or
Earning Power.  If, directly or indirectly, (a) the Company shall consolidate
with, or merge with and into, any other Person, (b) any Person shall merge with
and into the Company and the Company shall be the continuing or surviving
corporation of such merger and, in connection with any such merger, all or part
of the Common Shares of the Company shall be changed into or exchanged for
stock or other securities of any other Person (or the Company) or cash or any
other property, or (c) the Company shall sell or otherwise transfer (or one or
more of its Subsidiaries shall sell or otherwise transfer), in one or a series
of two or more transactions, assets of the Company or its Subsidiaries which
constitute more than 50% of the assets or which produce more than 50% of the
earning power of the Company and its Subsidiaries (taken as a whole) to any
Person or any Affiliate or Associate of such Person other than the Company or
one or more of its Wholly-Owned Subsidiaries, then, and in each such case, the
Company agrees that, as a condition to engaging in any such transaction, it
will make or cause to be made proper provision so that (i) each holder of a
Right (except as otherwise provided herein) shall thereafter have the right to
receive, upon the exercise thereof in accordance with the terms of this
Agreement and in lieu of Preferred Shares, such number of Common Shares of such
other Person (including the Company as successor thereto or as the surviving
corporation) or, if such other Person is a Subsidiary of another Person, of the
Person or Persons (other than individuals) which ultimately control such
first-mentioned Person, as shall be equal to the result obtained by (X)
multiplying the then current Purchase Price by the number of one
one-thousandths of a Preferred Share for which a Right is then exercisable
(without taking into account any adjustment previously made pursuant to Section
12(a)(ii)) and dividing that product by (Y) 50% of the current per share market
price of the Common Shares of such other Person (determined pursuant to Section
12(d)) on the date of consummation of such consolidation, merger, sale or
transfer; (ii) the issuer of such Common Shares shall thereafter be liable for,
and shall assume, by virtue of such consolidation, merger, sale or transfer,
all the obligations and duties of the Company pursuant to this Agreement; (iii)
the term "Company", as used herein, shall thereafter be deemed to refer to such
issuer; and (iv) such issuer shall take such steps (including without
limitation the reservation of a sufficient number of shares of its Common
Shares in accordance with Section 10) in connection with such consummation as
may be necessary to assure that the provisions hereof shall thereafter be
applicable, as nearly as reasonably may be, in relation to the Common Shares
thereafter deliverable upon the exercise of the Rights.  The Company shall not
enter into any transaction of the kind referred to in this Section 14 if at the
time of such transaction there are outstanding any rights, warrants,
instruments or securities or any agreement or arrangements which, as a result
of the consummation of such transaction, would substantially diminish or
otherwise eliminate the benefits intended to be afforded by the Rights.  The
Company shall not consummate any such consolidation, merger, sale or transfer
unless prior thereto the Company and such issuer shall have executed and
delivered to the Rights Agent an agreement supplemental to this Agreement





                                      -19-
<PAGE>   23
complying with the provisions of this Section 14.  The provisions of this
Section 14 shall similarly apply to successive mergers or consolidations or
sales or other transfers.  For the purposes of this Section 14, 50% of the
assets of the Company and its Subsidiaries shall be determined by reference to
the book value of such assets as set forth in the most recent consolidated
balance sheet of the Company and its Subsidiaries (which need not be audited)
and 50% of the earning power of the Company and its Subsidiaries shall be
determined by reference to the mathematical average of the operating income
resulting from the operations of the Company and its Subsidiaries for the two
most recent full fiscal years as set forth in the consolidated and
consolidating financial statements of the Company and its Subsidiaries for such
years; provided, however, that, if the Company has, during such period, engaged
in one or more transactions to which purchase accounting is applicable, such
determination shall be made by reference to the pro forma operating income of
the Company and its Subsidiaries giving effect to such transactions as if they
had occurred at the commencement of such two-year period.

         Section 15.  Fractional Rights and Fractional Shares.  (a) The Company
shall not be required to issue or distribute Right Certificates which evidence
fractional Rights.  If, on the Distribution Date or thereafter, as a result of
any adjustment effected pursuant to Section 12(i) or otherwise hereunder, a
Person would otherwise be entitled to receive a Right Certificate evidencing a
fractional Right, the Company shall, in lieu thereof, pay or cause to be paid
to such Person an amount in cash equal to the same fraction of the current
market value of a whole Right.  For the purpose of this Section 15(a), the
current market value of a whole Right shall be the Closing Price of the Rights
for the Trading Day immediately prior to the date on which such fractional
Rights would have been otherwise issuable.

         (b)     The Company shall not be required to issue fractions of
Preferred Shares (other than fractions which are integral multiples of one
one-thousandth of a Preferred Share) upon exercise of the Rights or to
distribute certificates which evidence fractional Preferred Shares (other than
fractions which are integral multiples of one one-thousandth of a Preferred
Share).  Fractions of Preferred Shares in integral multiples of one
one-thousandth of a Preferred Share may, at the election of the Company, be
evidenced by depositary receipts, pursuant to an appropriate agreement between
the Company and a depositary selected by it, provided that such agreement shall
provide that the holders of such depositary receipts shall have all the rights,
privileges and preferences to which they are entitled as beneficial owners of
the Preferred Shares.  If, on the Distribution Date or thereafter, as a result
of any adjustment effected hereunder in the number of one one-thousandths of a
Preferred Share as to which a Right has become exercisable, a Person would
otherwise be entitled to receive a fractional Preferred Share that is not an
integral multiple of one one-thousandth of a Preferred Share, the Company
shall, in lieu thereof, pay to such Person at the time such Right is exercised
as herein provided an amount in cash equal to the same fraction (which is not
an integral multiple of one one-thousandth of a Preferred Share) of the current
market value of one Preferred Share.  For purposes of this Section 15(b), the
current market value of a Preferred Share shall be the Closing Price of a
Preferred Share for the Trading Day immediately prior to the date of such
exercise.

         (c)     Should any adjustment contemplated by Section 12(a)(ii) or any
mandatory redemption and exchange contemplated by Section 25 occur, the Company
shall not be required to issue fractions of Common Shares upon exercise of the
Rights or to distribute certificates





                                      -20-
<PAGE>   24
which evidence fractional Common Shares.  If after any such adjustment or
mandatory redemption and exchange, a Person would otherwise be entitled to
receive a fractional Common Share of the Company upon exercise of any Right
Certificate or upon mandatory redemption and exchange as contemplated by
Section 25, the Company shall, in lieu thereof, pay to such Person at the time
such Right is exercised as herein provided or upon such mandatory redemption
and exchange an amount in cash equal to the same fraction of the current market
value of one Common Share.  For purposes of this Section 15(c), the current
market value of a Common Share shall be the Closing Price of a Common Share for
the Trading Day immediately prior to the date of such exercise or the date of
such mandatory redemption and exchange.

         (d)     The holder of a Right by the acceptance thereof expressly
waives his right to receive any fractional Rights or any fractional shares upon
exercise or mandatory redemption and exchange of a Right (except as provided
above).

         Section 16.  Rights of Action.  (a) All rights of action in respect of
the obligations and duties owed to the holders of the Rights under this
Agreement are vested in the registered holders of the Rights; and, without the
consent of the Rights Agent or of the holder of any other Rights, any
registered holder of any Rights may, in his own behalf and for his own benefit,
enforce, and may institute and maintain any suit, action or proceeding,
judicial or otherwise, against the Company to enforce, or otherwise to act in
respect of, such holder's right to exercise such Rights in the manner provided
in the Right Certificate evidencing such Rights and in this Agreement.  Without
limiting the foregoing or any remedies available to the holders of Rights, it
is specifically acknowledged that the holders of Rights would not have an
adequate remedy at law for any breach of this Agreement and will be entitled to
specific performance of the obligations under, and injunctive relief against
actual or threatened violations of, the obligations of any Person subject to
this Agreement.

         (b)     No right or remedy herein conferred upon or reserved to the
registered holder of Rights is intended to be exclusive of any other right or
remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or
now or hereafter existing at law or in equity or otherwise.  The assertion or
employment of any right or remedy, whether hereunder or otherwise, shall not
prevent the concurrent assertion or employment of any other appropriate right
or remedy.

         (c)     No delay or omission of any registered holder of Rights to
exercise any right or remedy accruing hereunder shall impair any such right or
remedy or constitute a waiver of any default hereunder or an acquiescence
therein.  Every right and remedy given hereunder or by law to such holders may
be exercised from time to time, and as often as may be deemed expedient, by
such holders.

         Section 17.  Agreement of Right Holders.  Every holder of a Right, by
accepting the same, consents and agrees with the Company and the Rights Agent
and with every other holder of a Right that:

                 (a)      prior to the Distribution Date, the Rights will be
         transferable only in connection with the transfer of the Common Shares
         of the Company;





                                      -21-
<PAGE>   25
                 (b)       after the Distribution Date, the Right Certificates
         are transferable only on the registry books of the Rights Agent if
         surrendered at the Corporate Trust Office of the Rights Agent duly
         endorsed or accompanied by a proper instrument of transfer; and

                 (c)      the Company and the Rights Agent may deem and treat
         the person in whose name the Right Certificate (or, prior to the
         Distribution Date, the associated Common Shares certificate) is
         registered as the absolute owner thereof and of the Rights evidenced
         thereby (notwithstanding any notations of ownership or writing on the
         Right Certificates or the associated Common Shares certificate made by
         anyone other than the Company or the Rights Agent) for all purposes,
         and neither the Company nor the Rights Agent shall be affected by any
         notice to the contrary.

         Section 18.  Right Certificate Holder Not Deemed a Stockholder.  No
holder, as such, of any Right (whether or not then evidenced by a Right
Certificate) shall be entitled to vote, receive dividends or be deemed for any
purpose the holder of Preferred Shares, Common Shares of the Company or any
other securities of the Company which may at any time be issuable on the
exercise (or mandatory redemption and exchange) of the Rights represented
thereby, nor shall anything contained herein or in any Right Certificate be
construed to confer upon any such holder, as such, any of the rights of a
stockholder of the Company, including without limitation any right to vote for
the election of directors or upon any matter submitted to stockholders at any
meeting thereof, to give or withhold consent to any corporate action, to
receive notice of meetings or other actions affecting stockholders (except as
provided in Section 26) or to receive dividends or subscription rights until
the Right or Rights evidenced by such Right Certificate shall have been
exercised (or mandatorily redeemed and exchanged) in accordance with the
provisions hereof.

         Section 19.  Concerning the Rights Agent.  The Company agrees to pay
to the Rights Agent reasonable compensation for all services rendered by it
hereunder and, from time to time, on demand of the Rights Agent, its reasonable
expenses and counsel fees and other disbursements incurred in the
administration and execution of this Agreement and the exercise and performance
of its duties hereunder.  The Company also agrees to indemnify the Rights Agent
for, and to hold it harmless against, any loss, liability or expense, incurred
without negligence, bad faith or willful misconduct on the part of the Rights
Agent, for anything done or omitted by the Rights Agent in connection with the
acceptance and administration of this Agreement, including the costs and
expenses of defending against any claim of liability in the premises.  The
costs and expenses of enforcing this right of indemnification shall also be
paid by the Company; provided, however, that if the Rights Agent is found by a
final judgment of a tribunal having jurisdiction not to be entitled to
indemnity in respect of any claim of liability because its conduct constituted
negligence, bad faith or willful misconduct, the Rights Agent will not be
entitled to reimbursement hereunder for the costs and expenses of defending
such claim and will reimburse the Company for any costs and expenses previously
paid on behalf of the Rights Agent.  The indemnification provided for hereunder
shall survive the expiration of the Rights and termination of this Agreement.

         The Rights Agent may conclusively rely upon and shall be protected and
shall incur no liability for, or in respect of any action taken, suffered or
omitted by it in connection with, its





                                      -22-
<PAGE>   26
administration of this Agreement in reliance upon any Right Certificate or
certificate for Preferred Shares, Common Shares of the Company or other
securities of the Company, Company Order, instrument of assignment or transfer,
power of attorney, endorsement, affidavit, letter, notice, direction, consent,
certificate, statement, or other paper or document believed by it to be genuine
and to be executed and, where necessary, verified or acknowledged, by the
proper person or persons, or otherwise upon the advice of its counsel as set
forth in Section 20 hereof.  Notwithstanding anything in this Agreement to the
contrary, in no event shall the Rights Agent be liable for special, indirect or
consequential loss or damage of any kind whatsoever (including but not limited
to lost profits), even if the Rights Agent has been advised of the likelihood
of such loss or damage and regardless of the form of the action.

         Section 20.  Duties of Rights Agent.  The Rights Agent undertakes the
duties and obligations imposed by this Agreement (and no implied duties or
obligations shall be read into this Agreement against the Right Agent) upon the
following terms and conditions, by all of which the Company and the holders of
Right Certificates, by their acceptance thereof, shall be bound:

         (a)     Before the Rights Agent acts or refrains from acting, the
Rights Agent may consult with legal counsel (who may be legal counsel for the
Company), and the opinion of such counsel shall be full and complete
authorization and protection to the Rights Agent as to any action taken or
omitted by it in good faith and in accordance with such opinion.

         (b)     Whenever in the performance of its duties under this Agreement
the Rights Agent shall deem it necessary or desirable that any fact or matter
be proved or established by the 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 to be conclusively proved and
established by a certificate signed by any one of the Chairman of the Board,
the President, any Vice President, the Treasurer, any Assistant Treasurer, the
Secretary or any Assistant Secretary of the Company and delivered to the Rights
Agent; and such certificate shall be full authorization to the Rights Agent for
any action taken or suffered in good faith by it under the provisions of this
Agreement in reliance upon such certificate.

         (c)     The Rights Agent shall be liable hereunder to the Company or
any other Person only for its own negligence, bad faith or willful misconduct.

         (d)     The Rights Agent shall not be liable for or by reason of any
of the statements of fact or recitals contained in this Agreement or in the
Right Certificates (except its authentication thereof) or be required to verify
the same, but all such statements and recitals are and shall be deemed to have
been made by the Company only.

         (e)     The Rights Agent shall not have any responsibility with
respect to the validity of this Agreement or the execution and delivery hereof
(except the due execution hereof by the Rights Agent) or with respect to the
validity or execution of any Right Certificate (except its authentication
thereof); nor shall it be responsible for any breach by the Company of any
covenant or condition contained in this Agreement or in any Right Certificate;
nor shall it be responsible for any change in the exercisability of the Rights
(including the Rights becoming





                                      -23-
<PAGE>   27
void pursuant to Section 12(a)(ii) hereof) or any adjustment in the terms of
the Rights (including the manner, method or amount thereof) provided for in
Sections 3, 12, 14, 24 and 25, or the ascertainment of the existence of facts
that would require any such change or adjustment (except with respect to the
exercise of Rights evidenced by Right Certificates after actual notice that
such change or adjustment is required); nor shall it by any act hereunder be
deemed to make any representation or warranty as to the authorization or
reservation of any Preferred Shares or Common Shares to be issued pursuant to
this Agreement or any Right Certificate or as to whether any Preferred Shares
or Common Shares will, when issued, be duly authorized, validly issued, fully
paid and nonassessable.

         (f)     The Company agrees that it will perform, execute, acknowledge
and deliver or cause to be performed, executed, acknowledged and delivered all
such further and other acts, instruments and assurances as may reasonably be
required by the Rights Agent for the carrying out or performing by the Rights
Agent of the provisions of this Agreement.


         (g)     The Rights Agent is hereby authorized and directed to accept
instructions with respect to the performance of its duties hereunder from any
one of the Chairman of the Board, the President, any Vice President, the
Treasurer, any Assistant Treasurer, the Secretary or any Assistant Secretary of
the Company, and to apply to such officers for advice or instructions in
connection with its duties, and it shall not be liable for any action taken or
suffered to be taken by it in good faith or lack of action in accordance with
instructions of any such officer or for any delay in acting while waiting for
instruction.  Any application by the Rights Agent for written instructions from
the Company may, at the option of the Rights Agent, set forth in writing any
action proposed to be taken or omitted by the Rights Agent under this Agreement
and the date on or after which such action shall be taken or such omission
shall be effective.  The Rights Agent shall not be liable for any action taken
by, or omission of, the Rights Agent in accordance with a proposal included in
any such application on or after th date specified in such application (which
date shall not be less than ten Business Days after the date any officer of the
Company actually receives such application, unless any such officer shall have
consented in writing to an earlier date) unless, prior to taking any such
action (or the effective date in the case of an omission), the Rights Agent
shall have received written instructions in response to such application
subject to the proposed action or omission and/or specifying the action to be
taken or omitted.

         (h)     The Rights Agent and any shareholder, director, officer or
employee of the Rights Agent may buy, sell or deal in any of the Rights or
other securities of the Company or become pecuniarily interested in any
transaction in which the Company may be interested, or contract with or lend
money to the Company or otherwise act as fully and freely as though it were not
Rights Agent under this Agreement.  Nothing herein shall preclude the Rights
Agent from acting in any other capacity for the Company.

         (i)     The Rights 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, and the Rights Agent shall not be answerable
or accountable for any act, default, neglect or misconduct of any such
attorneys or agents or for any loss of the Company resulting from any such act,
default, neglect or misconduct provided reasonable care was exercised in the
selection and continued employment thereof.





                                      -24-
<PAGE>   28
         (j)     No provision of this Agreement shall require the Rights Agent
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
if there shall be reasonable grounds for believing that repayment of such funds
or adequate indemnification against such risk or liability is not reasonably
assured to it.

         (k)     The Rights Agent shall not be required to take notice or be
deemed to have notice of any fact, event or determination (including, without
limitation, any dates or events defined in this Agreement or the designation of
any Person as an Acquiring Person, Affiliate or Associate) under this Agreement
unless and until the Rights Agent shall be specifically notified in writing by
the Company of such fact, event or determination.

         Section 21.  Merger or Consolidation or Change of Name of Rights
Agent.  Any corporation into which the Rights Agent or any successor Rights
Agent may be merged or with which it may be consolidated, or any corporation
resulting from any merger or consolidation to which the Rights Agent or any
successor Rights Agent shall be a party, or any corporation succeeding to the
corporate trust business of the Rights Agent or any successor Rights Agent,
shall be the successor to the Rights Agent under this Agreement 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 Rights Agent under the provisions of Section 22.  If
at the time such successor Rights Agent shall succeed to the agency created by
this Agreement any of the Right Certificates shall have been authenticated but
not delivered, any such successor Rights Agent may adopt the authentication of
the predecessor Rights Agent and deliver such Right Certificates so
authenticated, and, if at that time any of the Right Certificates shall not
have been authenticated, any successor Rights Agent may authenticate such Right
Certificates either in the name of the predecessor Rights Agent or in the name
of the successor Rights Agent; and in all such cases such Right Certificates
shall have the full force provided in the Right Certificates and in this
Agreement.

         If at any time the name of the Rights Agent shall be changed and at
such time any of the Right Certificates shall have been authenticated but not
delivered, the Rights Agent may adopt the authentication under its prior name
and deliver Right Certificates so authenticated; and, in case at that time any
of the Right Certificates shall not have been authenticated, the Rights Agent
may authenticate such Right Certificates either in its prior name or in its
changed name; and in all such cases such Right Certificates shall have the full
force provided in the Right Certificates and in this Agreement.

         Section 22.  Change of Rights Agent.  The Rights Agent or any
successor Rights Agent may resign and be discharged from its duties under this
Agreement upon 30 days' notice in writing mailed to the Company and to each
transfer agent for the Common Shares of the Company and the Preferred Shares by
registered or certified mail at the expense of the Company, and to the holders
of the Right Certificates by first-class mail at the expense of the Company.
The Company may remove the Rights Agent or any successor Rights Agent upon 30
days' notice in writing, mailed to the Rights Agent or successor Rights Agent,
as the case may be, and to each transfer agent for the Common Shares of the
Company and the Preferred Shares by registered or certified mail, and to the
holders of the Right Certificates by first-class mail.  If the Rights Agent





                                      -25-
<PAGE>   29
shall resign or be removed or shall otherwise become incapable of acting, the
Company shall appoint a successor to the Rights Agent.  If the Company shall
fail to make such appointment within a period of 30 days after giving notice of
such removal or after it has been notified in writing of such resignation or
incapacity by the resigning or incapacitated Rights Agent or by the registered
holder of a Right Certificate (or, prior to the Distribution Date, of Common
Shares), then any registered holder of a Right Certificate (or, prior to the
Distribution Date, of Common Shares) may apply to any court of competent
jurisdiction for the appointment of a new Rights Agent.  Any successor Rights
Agent, whether appointed by the Company or by such a court, shall be a
corporation organized and doing business under the laws of the United States or
of any state of the United States, which is authorized under such laws to
exercise corporate trust powers and is subject to supervision or examination by
federal or state authority and which has at the time of its appointment as
Rights Agent a combined capital and surplus of at least $50 million.  After
appointment, the successor Rights Agent shall be vested with the same powers,
rights, duties and responsibilities as if it had been originally named as
Rights Agent without further act or deed; but the predecessor Rights Agent
shall deliver and transfer to the successor Rights 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.  Not later than the
effective date of any such appointment, the Company shall file notice thereof
in writing with the predecessor Rights Agent and each transfer agent for the
Common Shares of the Company and the Preferred Shares, and mail a notice
thereof in writing to the registered holders of the Right Certificates.
Failure to give any notice provided for in this Section 22, however, or any
defect therein, shall not affect the legality or validity of the resignation or
removal of the Rights Agent or the appointment of the successor Rights Agent,
as the case may be.

         Section 23.  Issuance of New Right Certificates.  Notwithstanding any
of the provisions of this Agreement or of the Rights to the contrary, the
Company may, at its option, issue new Rights Certificates evidencing Rights in
such form as may be approved by its Board of Directors to reflect any
adjustment or change in the Purchase Price per share and the number or kind or
class of shares or other securities purchasable under the Right Certificates
made in accordance with the provisions of this Agreement.

         Section 24.  Redemption.  (a) The Rights may be redeemed by action of
the Board of Directors of the Company pursuant to paragraph (b) of this Section
24, or may be redeemed and exchanged by action of the Board of Directors of the
Company pursuant to Section 25 herein, but shall not be redeemed in any other
manner.

         (b)     The Board of Directors of the Company may, at its option, at
any time prior to the time any Person becomes an Acquiring Person redeem all
but not less than all the then outstanding Rights at a redemption price of one
cent ($0.01) per Right then outstanding, appropriately adjusted to reflect any
adjustment in the number of Rights outstanding pursuant to Section 12(i) herein
(such redemption price being hereinafter referred to as the "Redemption
Price").  Any such redemption of the Rights by the Board of Directors may be
made effective at such time, on such basis and with such conditions as the
Board of Directors in its sole discretion may establish.





                                      -26-
<PAGE>   30
         (c)     The right of the registered holders of Right Certificates to
exercise the Rights evidenced thereby or, if the Distribution Date has not
theretofore occurred, the inchoate right of the registered holders of Rights to
exercise the same shall, without notice to such holders or to the Rights Agent
and without further action, terminate and be of no further force or effect
effective as of the time of adoption by the Board of Directors of the Company
of a resolution authorizing and directing the redemption of the Rights pursuant
to paragraph (b) of this Section 24 (or, alternatively, if the Board of
Directors qualified such action as to time, basis or conditions, then at such
time, on such basis and with such conditions as the Board of Directors may have
established pursuant to such paragraph (b)); thereafter, the only right of the
holders of Rights shall be to receive the Redemption Price.  The Company shall
promptly give public notice of any redemption resolution pursuant to paragraph
(b) of this Section 24; provided, however, that the failure to give, or any
defect in, any such notice shall not affect the validity of such redemption.
Within 10 days after the adoption of any redemption resolution pursuant to
paragraph (b) of this Section 24, the Company shall give notice of such
redemption to the holders of the then outstanding Rights by mailing such notice
to all such holders at their last addresses as they appear upon the registry
books of the Rights Agent or, prior to the Distribution Date, on the registry
books of the transfer agents for the Common Shares.  Any notice which is mailed
in the manner herein provided shall be deemed given, whether or not the holder
receives the notice.  Each such notice of redemption shall state the method by
which the payment of the Redemption Price will be made.

         (d)     Neither the Company nor any of its Affiliates or Associates
may acquire (other than, in the case of such Affiliates and Associates, in
their capacity as holders of Common Shares of the Company), redeem or purchase
for value any Rights at any time in any manner other than as specifically set
forth in this Section 24 or in Section 25 herein, and other than in connection
with the purchase of Common Shares prior to the Distribution Date.

         Section 25.  Mandatory Redemption and Exchange.  (a) The Board of
Directors of the Company may, at its option, at any time after any Person
becomes an Acquiring Person, issue Common Shares of the Company in mandatory
redemption of, and in exchange for, all or part of the then outstanding and
exercisable Rights (which shall not include Rights that have become null and
void pursuant to the provisions of Section 12(a)(ii) hereof) at an exchange
ratio of one Common Share for each two Common Shares for which each Right is
then exercisable pursuant to the provisions of Section 12(a)(ii) hereof.
Notwithstanding the foregoing, the Board of Directors shall not be empowered to
effect such redemption and exchange at any time after any Person (other than
the Company, any Subsidiary of the Company, any employee benefit plan of the
Company or of any such Subsidiary, or any trustee of or fiduciary with respect
to any such plan when acting in such capacity), together with all Affiliates
and Associates of such Person, becomes the Beneficial Owner of 50% or more of
the Voting Shares then outstanding.

         (b)     Immediately upon the action of the Board of Directors of the
Company ordering the mandatory redemption and exchange of any Rights pursuant
to subsection (a) of this Section 25 and without any further action and without
any notice, the right to exercise such Rights shall terminate and the only
right thereafter of a holder of such Rights shall be to receive such number of
Common Shares as is provided in paragraph (a) of this Section 25.  The Company
shall promptly give public notice of any such redemption and exchange;
provided, however, that the





                                      -27-
<PAGE>   31
failure to give, or any defect in, such notice shall not affect the validity of
such redemption and exchange.  The Company promptly shall mail a notice of any
such redemption and exchange to all the holders of such Rights at their last
addresses as they appear upon the registry books of the Rights Agent.  Any
notice which is mailed in the manner herein provided shall be deemed given,
whether or not the holder receives the notice.  Each such notice of mandatory
redemption and exchange shall state the method by which the redemption and
exchange of the Common Shares for Rights will be effected and, in the event of
any partial redemption and exchange, the number of Rights which will be
redeemed and exchanged.  Any partial redemption and exchange shall be effected
pro rata based on the number of Rights (other than Rights which have become
null and void pursuant to the provisions of Section 12(a)(ii) hereof) held by
each holder of Rights.

         (c)     In any mandatory redemption and exchange pursuant to this
Section 25, the Company, at its option, may substitute Preferred Shares (or
equivalent preferred shares, as such term is defined in Section 12(b) hereof)
for Common Shares, at the initial rate of one one-thousandth of a Preferred
Share (or equivalent preferred share) for each Common Share, as appropriately
adjusted.

         Section 26.  Notice of Certain Events.  If the Company shall, on or
after the Distribution Date, propose (a) to pay any dividend or other
distribution payable in stock of any class of the Company or any Subsidiary of
the Company to the holders of its Preferred Shares, (b) to distribute to the
holders of its Preferred Shares rights or warrants to subscribe for or to
purchase any additional Preferred Shares or shares of stock of any class or any
other securities, rights or options, (c) to make any other distribution to the
holders of its Preferred Shares (other than a regular quarterly cash dividend),
(d) to effect any reclassification of its Preferred Shares (other than a
reclassification involving only the subdivision of outstanding Preferred
Shares), (e) to effect any consolidation or merger into or with, or to effect
any sale or other transfer (or to permit one or more of its Subsidiaries to
effect any sale or other transfer), in one or more transactions, of more than
50% of the assets or earning power of the Company and its Subsidiaries
(determined as provided in Section 14 herein) to, any other Person (other than
the Company or a Wholly- Owned Subsidiary or Wholly-Owned Subsidiaries), (f) to
effect the liquidation, dissolution or winding up of the Company or (g) if the
Rights have theretofore become exercisable with respect to Common Shares
pursuant to Section 12(a)(ii) herein, to declare or pay any dividend or other
distribution on the Common Shares payable in Common Shares or in stock of any
other class of the Company or any Subsidiary of the Company or to effect a
subdivision or combination of the Common Shares (by reclassification or
otherwise than by payment of dividends in Common Shares) then, in each such
case, the Company shall give to each holder of a Right Certificate, in
accordance with Section 28 hereof, notice of such proposed action, which shall
specify the date of authorization by the Board of Directors of the Company of,
and record date for, such stock dividend or such distribution of rights or
warrants or the date on which such reclassification, consolidation, merger,
sale, transfer, liquidation, dissolution, winding up, subdivision or
combination is to take place and the date of participation therein by the
holders of the Common Shares of the Company or the Preferred Shares, or both,
if any such date is to be fixed.  Such notice shall be so given in the case of
any action covered by clause (a), (b) or (g) above at least 20 days prior to
the record date for determining holders of the Preferred Shares or of the
Common Shares of the Company, as the case may be, for purposes of such action,
and in the case of any such other action, at least 20 days prior to the date of
the taking of such proposed action or





                                      -28-
<PAGE>   32
the date of participation therein by the holders of the Preferred Shares or
Common Shares of the Company, as the case may be, whichever shall be the
earlier.

         If any of the events set forth in Section 12(a)(ii) of this Agreement
shall occur, then, in any such case, the Company shall as soon as practicable
thereafter give to each holder of a Right Certificate, in accordance with
Section 28 hereof, a notice of the occurrence of such event, which shall
specify the event and the consequences of the event to holders of Rights under
Section 12(a)(ii) hereof.

         Section 27.  Securities Laws Registrations.  To the extent legally
required, the Company agrees that it will prepare and file, no later than the
Distribution Date, and will use its best efforts to cause to be declared
effective, a registration statement under the Securities Act of 1933, as
amended, registering the offering, sale and delivery of the Preferred Shares
issuable upon exercise of the Rights, and the Company will, thereafter, use its
best efforts to maintain such registration statement (or another) continuously
in effect so long as any Rights remain outstanding and exercisable with respect
to Preferred Shares.  Should the Rights become exercisable with respect to
securities of the Company or one of its Subsidiaries other than Preferred
Shares, the Company agrees that it will, to the extent legally required,
promptly thereafter prepare and file, or cause to be prepared and filed, and
will use its best efforts to cause to be declared effective, a registration
statement under such Act registering the offering, sale and delivery of such
other securities and the Company will, thereafter, use its best efforts to
maintain such registration statement (or another) continuously in effect so
long as any outstanding Rights are exercisable with respect to such securities.
The Company further agrees to use its best efforts, from and after the
Distribution Date, to qualify or register for sale the Preferred Shares or
other securities of the Company or one of its Subsidiaries issuable upon
exercise of the Rights under the securities or "blue sky" laws (to the extent
legally required thereunder) of all jurisdictions in which registered holders
of Right Certificates reside determined by reference to the Rights Register.

         Section 28.  Notices.  Notices or demands authorized by this Agreement
to be given or made by the Rights Agent or by the holder of any Right
Certificate to or on the Company shall be sufficiently given or made if sent by
first-class mail, postage prepaid, addressed (until another address is filed in
writing with the Rights Agent) as follows:

                        ICO, Inc.
                        11490 Westheimer Road
                        Suite 1000
                        Houston, Texas 77077
                        Attention:  Chief Executive Officer
                        Attention:  Treasurer

Subject to the provisions of Section 22 hereof, any notice or demand authorized
by this Agreement to be given or made by the Company or by the holder of any
Right Certificate to or on the Rights Agent shall be sufficiently given or made
if sent by registered or certified mail and shall be deemed given upon receipt,
addressed (until another address is filed in writing with the Company) as
follows:


                                      -29-
<PAGE>   33
                         Harris Trust & Savings Bank
                         1601 Elm Street
                         Suite 2320
                         Dallas, Texas 75201
                         Attention:  Corporate Trust Department

Notices or demands authorized by this Agreement to be given or made by the
Company or the Rights Agent to the holder of any Right Certificate shall be
sufficiently given or made if sent by first-class mail, postage prepaid,
addressed to such holder at the address of such holder as shown on the Rights
Register of the Company or, prior to the Distribution Date, on the stock
transfer records for the Common Shares of the Company.

         Section 29.  Supplements and Amendments.  The Company may from time to
time supplement or amend this Agreement (which supplement or amendment shall be
evidenced by a writing signed by the Company and the Rights Agent) without the
approval of any holders of Right Certificates in order to cure any ambiguity,
to correct or supplement any provision contained herein which may be defective
or inconsistent with any other provisions herein, to make any other provisions
in regard to matters or questions arising hereunder, or to add, delete, modify
or otherwise amend any provision, which the Company may deem necessary or
desirable, including without limitation extending the Final Expiration Date
and, provided that at the time of such amendment or supplement the Distribution
Date has not occurred, the period during which the Rights may be redeemed;
provided, however, that, from and after such time as any Person becomes an
Acquiring Person, any such amendment or supplement shall not materially and
adversely affect the interests of the holders of Right Certificates.  Without
limiting the foregoing, the Board of Directors of the Company may by resolution
adopted at any time prior to such time as any Person becomes an Acquiring
Person amend this Agreement to lower the threshold set forth in the definitions
of Acquiring Person and Distribution Date herein from 15% to a percentage not
less than the greater of (i) any percentage greater than the largest percentage
of the outstanding Voting Shares then known to the Company to be beneficially
owned by any Person (other than the Company, any Subsidiary of the Company, any
employee benefit plan of the Company or of any Subsidiary of the Company, or
any trustee of or fiduciary with respect to any such plan when acting in such
capacity), and (ii) 10% if the Board of Directors shall determine that a Person
whose interests are adverse to the Company and its shareholders may seek to
acquire control of the Company.  Notwithstanding anything in this Agreement to
the contrary, no supplement or amendment that changes the rights and duties of
the Rights Agent under this Agreement will be effective against the Rights
Agent without the execution of such supplement or amendment by the Rights
Agent.

         Section 30.  Successors.  All the covenants and provisions of this
Agreement by or for the benefit of the Company or the Rights Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.

         Section 31.  Benefits of this Agreement.  Nothing in this Agreement
shall be construed to give to any Person other than the Company, the Rights
Agent and the registered holders of the Rights any legal or equitable right,
remedy or claim under this Agreement; but this Agreement





                                      -30-
<PAGE>   34
shall be for the sole and exclusive benefit of the Company, the Rights Agent
and the registered holders of the Rights.

         Section 32.  Severability.  If any term, provision, covenant or
restriction of this Agreement is held by a court of competent jurisdiction or
other authority to be invalid, void or unenforceable, the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected, impaired or invalidated.

         SECTION 33.  GOVERNING LAW.  THIS AGREEMENT AND EACH RIGHT CERTIFICATE
ISSUED HEREUNDER SHALL BE DEEMED TO BE A CONTRACT MADE UNDER THE LAWS OF THE
STATE OF TEXAS AND FOR ALL PURPOSES SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF SUCH STATE APPLICABLE TO CONTRACTS TO BE MADE AND
PERFORMED ENTIRELY WITHIN SUCH STATE EXCEPT AS TO THE RIGHTS AND DUTIES OF THE
RIGHTS AGENT WHICH SHALL BE GOVERNED AND CONSTRUED IN ACCORDANCE WITH THE LAWS
OF THE STATE OF ILLINOIS.

         Section 34.  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 35.  Descriptive Headings.  Descriptive headings of the
several Sections of this Agreement are inserted for convenience only and shall
not control or affect the meaning or construction of any of the provisions
hereof.





                                      -31-
<PAGE>   35
         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed and attested, all as of the day and year first above written.

                                          
                                          ICO, INC.
Attest:


By       /s/ Sylvia A. Pacholder          By       /s/ Asher O. Pacholder      
  --------------------------------          -----------------------------------
  Name:        Sylvia A. Pacholder          Name:      Asher O. Pacholder      
       ---------------------------               ------------------------------
  Title:  Secretary                         Title: Chairman of the Board and
                                                   Chief Financial Officer


                                          HARRIS TRUST & SAVINGS BANK
                                          As Rights Agent
Attest:


By       /s/ Elizabeth M. McMahon         By       /s/ Ray G. Rosenbaum        
  -------------------------------           -----------------------------------
Name:       Elizabeth M. McMahon          Name:        Ray G. Rosenbaum        
     ----------------------------              --------------------------------
  Title: Assistant                        Title: Vice President





                                      -32-

<PAGE>   36
                                                                      EXHIBIT A

                           CERTIFICATE OF DESIGNATION
                                       OF
                      JUNIOR PARTICIPATING PREFERRED STOCK

                                       OF

                                   ICO, INC.

                        Pursuant to Article 2.13 of the
                         Texas Business Corporation Act


         ICO, Inc., a Texas corporation (the "Corporation"), through the 
undersigned duly authorized officer, in accordance with the provisions of
Article 2.13 of the Texas Business Corporation Act, DOES HEREBY CERTIFY:

         1.      The name of the Corporation is ICO, Inc.

         2.      The Board of Directors of the Corporation on November 20, 1997,
pursuant to the authority conferred upon the Board of Directors by the Articles
of Incorporation, as amended, of the Corporation (the "Articles of
Incorporation") and in accordance with the provisions of Article 2.13 of the
Texas Business Corporation Act, adopted the following resolution creating a
series of 50,000 shares of Preferred Stock, no par value:

                 RESOLVED, that, pursuant to the authority expressly granted to
         and vested in the Board of Directors of the Corporation in accordance
         with the provisions of Article Four of the Articles of Incorporation,
         a series of the Preferred Stock of the Corporation, no par value, be,
         and it hereby is, created and that the voting powers, designations,
         preferences and relative, participating, optional and other special
         rights of the shares of such series, and the qualification,
         limitations or restrictions thereof are as follows:

         Junior Participating Preferred Stock:

                 Section 1.  Designation and Amount.  The shares of such series
         shall be designated as "Junior Participating Preferred Stock" (the
         "Junior Preferred Stock") and the number of shares constituting the
         Junior Preferred Stock shall be 50,000.  Such number of shares may be
         increased or decreased by resolution of the Board of Directors;
         provided, that no decrease shall reduce the number of shares of Junior
         Preferred Stock to a number less than the number of shares then
         outstanding plus the number of shares reserved for issuance upon the
         exercise of outstanding options, rights or warrants or upon the
         conversion of any outstanding securities issued by the Corporation
         convertible into Junior Preferred Stock.


                                    A - 1
<PAGE>   37
         Section 2.  Dividends and Distributions.

         (A)      Subject to the rights of the holders of any shares of any
series of Preferred Stock (or any similar stock) ranking prior and superior to
the Junior Preferred Stock with respect to dividends, the holders of shares of
Junior Preferred Stock, in preference to the holders of Common Stock, no par
value (the "Common Stock"), of the Corporation, and of any other junior stock,
shall be entitled to receive, when, as and if declared by the Board of
Directors out of funds legally available for the purpose, quarterly dividends
payable on the first business day of February, May, August and November in each
year (each such date being referred to herein as a "Quarterly Dividend Payment
Date") as provided in paragraphs (B) and (C) of this Section 2 in an amount per
share (rounded to the nearest cent) equal to the greater of (a) $1.00 in cash
or (b) subject to the provision for adjustment hereinafter set forth, 1,000
times the aggregate per share amount (payable in cash) of all cash dividends,
and 1,000 times the aggregate per share amount (payable in kind) of all
non-cash dividends or other distributions, other than a dividend payable in
shares of Common Stock or a subdivision of the outstanding shares of Common
Stock (by reclassification or otherwise), declared on the Common Stock since
the immediately preceding Quarterly Dividend Payment Date or with respect to
the first Quarterly Dividend Payment Date, since the first issuance of any
share or fraction of a share of Junior Preferred Stock.  If the Corporation
shall at any time declare or pay any dividend on the Common Stock payable in
shares of Common Stock, or effect a subdivision or combination or consolidation
of the outstanding shares of Common Stock (by reclassification or otherwise)
into a greater or lesser number of shares of Common Stock, then in each such
case the amount to which holders of shares of Junior Preferred Stock were
entitled immediately prior to such event under clause (b) of the preceding
sentence shall be adjusted by multiplying such amount by a fraction, the
numerator of which is the number of shares of Common Stock outstanding
immediately after such event and the denominator of which is the number of
shares of Common Stock that was outstanding immediately prior to such event.

         (B)      The Corporation shall declare a dividend or distribution on
the Junior Preferred Stock as provided in paragraph (A) of this Section 2
immediately after it declares a dividend or distribution on the Common Stock
(other than a dividend payable in shares of Common Stock); provided that, if no
dividend or distribution shall have been declared on the Common Stock during
the period between any Quarterly Dividend Payment Date and the next subsequent
Quarterly Dividend Payment Date, a dividend of $1.00 per share payable in cash
on the Junior Preferred Stock shall nevertheless accrue and be cumulative on
the outstanding shares of Junior Preferred Stock as provided in paragraph (C)
of this Section 2.

         (C)      Dividends shall begin to accrue and be cumulative on
outstanding shares of Junior Preferred Stock from the Quarterly Dividend
Payment Date next preceding the date of issue of such shares, unless the date
of issue of such shares is prior to the record date for the first Quarterly
Dividend Payment Date, in which case dividends on such shares shall begin to
accrue from the date of issue of such shares, or unless the date of issue is a
Quarterly Dividend Payment Date or is a date after the record date for the
determination of holders of shares of Junior Preferred Stock entitled to
receive a quarterly dividend and before such Quarterly Dividend Payment Date,
in either of which events such dividends shall begin to





                                        A - 2
<PAGE>   38
accrue and be cumulative from such Quarterly Dividend Payment Date.  Accrued
but unpaid dividends shall not bear interest.  Dividends paid on the shares of
Junior Preferred Stock in an amount less than the total amount of such
dividends at the time accrued and payable on such shares shall be allocated pro
rata on a share-by- share basis among all such shares at the time outstanding.
The Board of Directors may fix a record date for the determination of holders
of shares of Junior Preferred Stock entitled to receive payment of a dividend
or distribution declared thereon, which record date shall be not more than 60
days prior to the date fixed for the payment thereof.

         Section 3.  Voting Rights.  The holders of shares of Junior Preferred
Stock shall have the following voting rights:

         (A)      Subject to the provisions for adjustment hereinafter set
forth, each share of Junior Preferred Stock shall entitle the holder thereof to
1,000 votes on all matters submitted to a vote of the stockholders of the
Corporation.  If the Corporation shall at any time declare or pay any dividend
on Common Stock payable in shares of Common Stock, or effect a subdivision or
combination of the outstanding shares of Common Stock (by reclassification or
otherwise) into a greater or lesser number of shares of Common Stock, then in
each such case the number of votes per share to which holders of shares of
Junior Preferred Stock were entitled immediately prior to such event shall be
adjusted by multiplying such number by a fraction the numerator of which is the
number of shares of Common Stock outstanding immediately after such event and
the denominator of which is the number of shares of Common Stock that was
outstanding immediately prior to such event.

         (B)      Except as otherwise provided herein, in any other Certificate
of Designation creating a series of Preferred Stock or any similar stock, or by
law, the holders of shares of Junior Preferred Stock and the holders of shares
of Common Stock and any other capital stock of the Corporation having general
voting rights shall vote together as one class on all matters submitted to a
vote of stockholders of the Corporation.

         (C)      Except as set forth herein or as otherwise provided by law,
holders of Junior Preferred Stock shall have no special voting rights and their
consent shall not be required (except to the extent they are entitled to vote
with holders of Common Stock as set forth herein) for taking any corporate
action.

         Section 4.  Certain Restrictions.

         (A)      Whenever quarterly dividends or other dividends or
distributions payable on the Junior Preferred Stock as provided in Section 2
are in arrears, thereafter and until all accrued and unpaid dividends and
distributions, whether or not declared, on shares of Junior Preferred Stock
outstanding shall have been paid in full, or declared and a sum sufficient for
the payment therefor be set apart for payment and be in the process of payment,
the Corporation shall not:





                                     A - 3
<PAGE>   39
                 (i)     declare or pay dividends, or make any other 
         distributions, on any shares of stock ranking junior (either as to
         dividends or upon liquidation, dissolution or winding up) to the
         Junior Preferred Stock;

                 (ii)    declare or pay dividends, or make any other
         distributions, on any shares of stock ranking on a parity (either as
         to dividends or upon liquidation, dissolution or winding up) with the
         Junior Preferred Stock, except dividends paid ratably on the Junior
         Preferred Stock and all such parity stock on which dividends are
         payable or in arrears in proportion to the total amounts to which the
         holders of all such shares are then entitled;

                 (iii)   redeem or purchase or otherwise acquire for
         consideration shares of any stock ranking junior (either as to
         dividends or upon liquidation, dissolution or winding up) to the
         Junior Preferred Stock, provided that the Corporation may at any time
         redeem, purchase or otherwise acquire shares of any such junior stock
         in exchange for shares of any stock of the Corporation ranking junior
         (as to both dividends and upon dissolution, liquidation or winding up)
         to the Junior Preferred Stock; or

                 (iv)    redeem or purchase or otherwise acquire for
         consideration any shares of Junior Preferred Stock or any shares of
         stock ranking on a parity (either as to dividends or upon liquidation,
         dissolution or winding up) with the Junior Preferred Stock, except in
         accordance with a purchase offer made in writing or by publication (as
         determined by the Board of Directors) to all holders of such shares
         upon such terms as the Board of Directors, after consideration of the
         respective annual dividend rates and other relative rights and
         preferences of the respective series and classes, shall determine in
         good faith will result in fair and equitable treatment among the
         holders of the respective series or classes.

         (B)      The Corporation shall not permit any subsidiary of the
Corporation to purchase or otherwise acquire for consideration any shares of
stock of the Corporation unless the Corporation could, under paragraph (A) of
this Section 4, purchase or otherwise acquire such shares at such time and in
such manner.

         Section 5.  Reacquired Shares.  Any shares of Junior Preferred Stock
purchased or otherwise acquired by the Corporation in any manner whatsoever
shall be retired and canceled promptly after the acquisition thereof.  All such
shares shall upon their cancellation become authorized but unissued shares of
Preferred Stock and may be reissued as part of a new series of Preferred Stock
subject to the conditions and restrictions on issuance set forth herein, in the
Articles of Incorporation, or in any other Certificate of Designation creating
a series of Preferred Stock or any similar stock or as otherwise required by
law.

         Section 6.  Liquidation, Dissolution or Winding Up.  Upon any
liquidation, dissolution or winding up of the Corporation, no distribution
shall be made (1) to the holders of shares of stock ranking junior (either as
to dividends or as to amounts payable upon liquidation, dissolution or winding
up) to the Junior Preferred Stock unless, prior thereto, the





                                     A - 4
<PAGE>   40
holders of Junior Preferred Stock shall have received an amount per share
(rounded to the nearest cent) equal to the greater of (a) $1,000 per share, or
(b) an amount per share, subject to the provision for adjustment hereinafter
set forth, equal to 1,000 times the aggregate amount to be distributed per
share to holders of Common Stock, plus, in either case, an amount equal to
accrued and unpaid dividends and distributions thereon, whether or not
declared, to the date of such payment, or (2) to the holders of stock ranking
on a parity (either as to dividends or as to amounts payable upon liquidation,
dissolution or winding up) with the Junior Preferred Stock, except
distributions made ratably on the Junior Preferred Stock and all such parity
stock in proportion to the total amounts to which the holders of all such
Shares are entitled upon such liquidation, dissolution or winding up.  If the
Corporation shall at any time declare or pay any dividend on Common Stock
payable in shares of Common Stock, or effect a subdivision or combination or
consolidation of the outstanding shares of Common Stock (by reclassification or
otherwise) into a greater or lesser number of shares of Common Stock, then in
each such case the aggregate amount to which holders of shares of Junior
Preferred Stock were entitled immediately prior to such event under the proviso
in clause (1)(b) of the preceding sentence shall be adjusted by multiplying
such amount by a fraction the numerator of which is the number of shares of
Common Stock outstanding immediately after such event and the denominator of
which is the number of shares of Common Stock that was outstanding immediately
prior to such event.

         Section 7.  Consolidation, Merger, etc.  If the Corporation shall enter
into any consolidation, merger, combination or other transaction in which the
shares of Common Stock are exchanged for or changed into other stock or
securities, cash or any other property, or any combination thereof, then in any
such case each share of Junior Preferred Stock shall at the same time be
similarly exchanged or changed into an amount per share, subject to the
provision for adjustment hereinafter set forth, equal to 1,000 times the
aggregate amount of stock, securities, cash or any other property (payable in
kind), or any combination thereof, as the case may be, into which or for which
each share of Common Stock is changed or exchanged.  If the Corporation shall
at any time declare or pay any dividend on the Common Stock payable in shares
of Common Stock, or effect a subdivision or combination or consolidation of the
outstanding shares of Common Stock (by reclassification or otherwise) into a
greater or lesser number of shares of Common Stock, then in each such case the
amount set forth in the preceding sentence with respect to the exchange or
change of shares of Junior Preferred Stock shall be adjusted by multiplying
such amount by a fraction, the numerator of which is the number of shares of
Common Stock outstanding immediately after such event and the denominator of
which is the number of shares of Common Stock that was outstanding immediately
prior to such event.

         Section 8.  Redemption.  The shares of Junior Preferred Stock shall not
be redeemable.  So long as any shares of Junior Preferred Stock remain
outstanding, the Corporation shall not purchase or otherwise acquire for
consideration any shares of stock ranking junior (either as to dividends or
upon liquidation, dissolution or winding up) to the Junior Preferred Stock
unless the Corporation shall substantially concurrently also purchase or
acquire for consideration a proportionate number of shares of Junior Preferred
Stock.





                                     A - 5
<PAGE>   41
                 Section 9.  Rank.  The Junior Preferred Stock shall rank, with
         respect to payment of dividends and the distribution of assets, junior
         to all series of any other class of the Corporation's Preferred Stock.

                 Section 10.  Amendment.  The Articles of Incorporation of the
         Corporation shall not be amended in any manner which would materially
         alter or change the powers, preferences, privileges or special rights
         of the Junior Preferred Stock so as to affect them adversely without
         the affirmative vote of the holders of at least two-thirds of the 
         outstanding shares of Junior Preferred Stock, voting together as a 
         single class.

         3.      The adoption of the foregoing resolution by the Board of 
Directors of the Corporation constituted all necessary action on the part of the
Corporation necessary to create the Junior Preferred Stock described therein.





                                     A - 6
<PAGE>   42
        IN WITNESS WHEREOF, this Certificate of Designation is executed on 
behalf of the Corporation by its Senior Vice President and Treasurer this 16th
day of December, 1997.

                                  ICO, INC.
                                    
                                    
                                    
                                  By  /s/ Jon C. Biro
                                    -------------------------------------------
                                    Name: Jon C. Biro
                                    Title:  Senior Vice President and Treasurer





                                     A - 7
<PAGE>   43
                                                                     EXHIBIT B

                            Form of Right Certificate

Certificate No. R-                                                _____ Rights


         NOT EXERCISABLE AFTER NOVEMBER 21, 2007 OR EARLIER IF
         REDEMPTION OR EXCHANGE OCCURS. THE RIGHTS ARE SUBJECT TO
         REDEMPTION AT $.01 PER RIGHT AND TO EXCHANGE ON THE TERMS SET
         FORTH IN THE RIGHTS AGREEMENT. UNDER CERTAIN CIRCUMSTANCES,
         RIGHTS BENEFICIALLY OWNED BY ACQUIRING PERSONS (AS DEFINED IN
         SECTION 1 OF THE RIGHTS AGREEMENT) OR ANY SUBSEQUENT HOLDER OF
         SUCH RIGHTS MAY BECOME NULL AND VOID.


                                RIGHT CERTIFICATE
                                    ICO, INC.


         This certifies that _____________________________, or registered
assigns, is the registered owner of the number of Rights set forth above, each
of which entitles the owner thereof, subject to the terms, provisions and
conditions of the Rights Agreement, dated as of November 20, 1997 (the "Rights
Agreement"), between ICO, INC., a Texas corporation (the "Company"), and HARRIS
TRUST AND SAVINGS BANK (the "Rights Agent"), to purchase from the Company at any
time after the Distribution Date (as such term is defined in the Rights
Agreement) and prior to 5:00 p.m., Houston, Texas time, on November 21, 2007, at
the Corporate Trust Office of the Rights Agent (or at the office of its
successor as Rights Agent), one one-thousandth (1/1000) of a fully paid
non-assessable share of Junior Participating Preferred Stock, no par value (the
"Preferred Shares"), of the Company, at a purchase price of $30.00 per one
one-thousandth (1/1000) of a Preferred Share (the "Purchase Price"), upon
presentation and surrender of this Right Certificate with the Form of Election
to Purchase duly executed. The number of Rights evidenced by this Right
Certificate (and the number of one one-thousandths of a Preferred Share which
may be purchased upon exercise hereof) set forth above, and the Purchase Price
set forth above, are the number and Purchase Price as of November 21, 1997,
based on the Preferred Shares as constituted at such date. As provided in the
Rights Agreement, the Purchase Price and the number of one one-thousandths of a
Preferred Share which may be purchased upon the exercise of the Rights evidenced
by this Right Certificate are subject to modification and adjustment upon that
happening of certain events.

         This Right Certificate is subject to all of the terms, provisions and
conditions of the Rights Agreement, which terms, provisions and conditions are
hereby incorporated herein by reference and made a part hereof and to which
Rights Agreement reference is hereby made for a full description of the rights,
limitations of rights, obligations, duties and immunities hereunder of the
Rights Agent, the Company and the holders of the Right Certificates. Copies of
the Rights Agreement are on file

                                      B - 1

<PAGE>   44



at the principal executive offices of the Company and the Corporate Trust Office
of the Rights Agent.

         This Right Certificate, with or without other Right Certificates, upon
surrender at the Corporate Trust Office of the Rights Agent, may be exchanged
for another Right Certificate or Right Certificates of like tenor and date
evidencing Rights entitling the holder to purchase a like aggregate number of
Preferred Shares as the Rights evidenced by the Right Certificate or Right
Certificates surrendered shall have entitled such holder to purchase. If this
Right Certificate shall be exercised in part, the holder shall be entitled to
receive upon surrender hereof another Right Certificate or Right Certificates
for the number of whole Rights not exercised.

         Subject to the provisions of the Rights Agreement, the Rights evidenced
by this Certificate (i) may be redeemed by the Company at a redemption price of
$.01 per Right or (ii) may be exchanged by the Company in whole or in part for
Preferred Shares or shares of the Company's common stock, no par value.

         No fractional Preferred Shares will be issued upon the exercise of any
Right or Rights evidenced hereby (other than fractions which are integral
multiples of one one-thousandth of a Preferred Share, which may, at the election
of the Company, be evidenced by depositary receipts), but in lieu thereof a cash
payment will be made, as provided in the Rights Agreement.

         No holder of this Right Certificate shall be entitled to vote or
receive dividends or be deemed for any purpose the holder of the Preferred
Shares or of any other securities of the Company which may at any time be
issuable on the exercise hereof, nor shall anything contained in the Rights
Agreement or herein be construed to confer upon the holder hereof, as such, any
of the rights of a stockholder of the Company or any right to vote for the
election of directors or upon any matter submitted to stockholders at any
meeting thereof, or to give or withhold consent to any corporate action, or to
receive notice of meetings or other actions affecting stockholders (except as
provided in the Rights Agreement), or to receive dividends or subscription
rights, or otherwise, until the Right or Rights evidenced by this Right
Certificate shall have been exercised as provided in the Rights Agreement.

         This Right Certificate shall not be entitled to any benefit under the
Rights Agreement or be valid or obligatory for any purpose until it shall have
been authenticated by the Right Agent.

         WITNESS the facsimile signatures of the proper officers of the Company
and its corporate seal.

Dated as of ___________________, ____.


ATTEST:                                     ICO, INC.

         [SEAL]

                                            By:
- ----------------------------                   ------------------------------
         Secretary                                 President

                                      B - 2

<PAGE>   45





Authentication:

This is one of the Right Certificates referred to in the within-mentioned Rights
Agreement.


______________________, as Rights Agent


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

                                      B - 3

<PAGE>   46



                   [Form of Reverse Side of Right Certificate)

                               FORM OF ASSIGNMENT

             (To be executed by the registered holder if such holder
                   desires to transfer the Right Certificate)


         FOR VALUE RECEIVED,___________________________________ hereby sells, 
assigns and transfers unto_____________________________________________________
_______________________________________________________________________________
                  (Please print name and address of transferee)
_______________________________________________________________________________
this Right Certificate, together with all right, title and interest therein, and
does hereby irrevocably constitute and appoint________________________ Attorney,
to transfer the within Right Certificate on the books of the within-named
Company, with full power of substitution.

Dated as of ___________________, ____.

                                               -------------------------------
                                                         Signature

Signature Guaranteed:

         Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.

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

                    [To be executed if statement is correct]

         The undersigned hereby certifies that the Rights evidenced by this
Right Certificate are not beneficially owned by an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement).

                                               -------------------------------
                                                         Signature

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


                                      B - 4

<PAGE>   47



            [Form of Reverse Side of Right Certificate -- continued]

                          FORM OF ELECTION TO PURCHASE
                      (To be executed if holder desires to
                         exercise the Right Certificate)

TO ICO, INC.:

         The undersigned hereby irrevocably elects to exercise _____________
Rights represented by this Right Certificate to purchase the Preferred Shares
(or other securities) issuable upon the exercise of such Rights and requests
that certificates for such Preferred Shares (or other securities) be issued in
the name of:

Please insert social security 
or other identifying number:

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

- -------------------------------------------------------------------------------
                         (Please print name and address)

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

If such number of Rights shall not be all the Rights evidenced by this Right
Certificate, a new Right Certificate for the balance remaining of such Rights
shall be registered in the name of and delivered to:

Please insert social security 
or other identifying number:

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

- -------------------------------------------------------------------------------
                         (Please print name and address)

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

Dated as of ___________________, ____.

                                               -------------------------------
                                                           Signature

                                      B - 5

<PAGE>   48


            [Form of Reverse Side of Right Certificate -- continued]

Signature Guaranteed:

         Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States. 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

                   [To be executed if statement is correct]

         The undersigned hereby certifies that the Rights evidenced by this
Right Certificate are not beneficially owned by an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement).

                                               -------------------------------
                                                          Signature

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                     NOTICE


         The signature in the foregoing Form of Assignment or Form of Election
to Purchase must conform to the name as written upon the face of this Right
Certificate in every particular, without alteration or enlargement or any change
whatsoever.

         In the event the certification set forth above in the Form of
Assignment or the Form of Election to Purchase, as the case may be, is not
completed, the Company and the Rights Agent will deem the beneficial owner of
the Rights evidenced by this Right Certificate to be an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement) and such
Assignment or Election to Purchase will not be honored.



                                      B - 6

<PAGE>   49
                                                                      EXHIBIT C

                         SUMMARY OF RIGHTS TO PURCHASE
                                PREFERRED SHARES


         On November 20, 1997, the Board of Directors of ICO, Inc. (the
"Company"), authorized the issuance of one preferred share purchase right (a
"Right") with respect to each outstanding share of common stock, no par value
(the "Common Shares"), of the Company.  The rights were issued to holders of
record of Common Shares on November 21, 1997.  Each Right entitles the
registered holder to purchase from the Company one one-thousandth of a share of
Junior Participating Preferred Stock, no par value (the "Preferred Shares"), of
the Company at a price of $30.00 per one one- thousandth of a Preferred Share
(the "Purchase Price"), subject to adjustment.  The description and terms of
the Rights are set forth in a Rights Agreement (the "Rights Agreement") dated
as of November 20, 1997 between the Company and Harris Trust & Savings Bank, as
Rights Agent (the "Rights Agent").

         Detachment of Rights; Exercise.  Initially, the Rights will attach to
all Common Share certificates representing outstanding shares and no separate
Right Certificate will be distributed.  The Rights will separate from the
Common Shares and a Distribution Date will occur upon the earlier of (i) the
tenth business day following a public announcement that a person or group of
affiliated or associated persons (an "Acquiring Person") has acquired
beneficial ownership of 15% or more of the outstanding Voting Shares (as
defined in the Rights Agreement) of the Company, or (ii) the tenth business day
following the commencement or announcement of an intention to commence a tender
offer or exchange offer the consummation of which would result in the
beneficial ownership by a person or group of 15% or more of such outstanding
Voting Shares.

         Until the Distribution Date (or earlier redemption or expiration of
the Rights) (i) the Rights will be evidenced, with respect to any of the Common
Shares outstanding on November 21, 1997 by the certificates representing such
Common Shares with a copy of this Summary of Rights attached thereto, (ii) the
Rights will be transferred with and only with the Common Shares, (iii) new
Common Share certificates issued after November 21, 1997, upon transfer or new
issuance of the Common Shares will contain a notation incorporating the Rights
Agreement by reference, and (iv) the surrender for transfer of any certificates
for Common Shares outstanding as of November 21, 1997, even without such
notation or a copy of this Summary of Rights being attached thereto, will also
constitute the transfer of the Rights associated with the Common Shares
represented by such certificate.

         As soon as practicable following the Distribution Date, separate
certificates evidencing the Rights (the "Right Certificates") will be mailed to
holders of record of the Common Shares as of the close of business on the
Distribution Date and such separate Right Certificates alone will thereafter
evidence the Rights.

         The Rights are not exercisable until the Distribution Date.  The
Rights will expire on November 21, 2007 (the "Final Expiration Date"), unless
the Final Expiration Date is extended or the Rights are earlier redeemed or
exchanged by the Company as described below.


                                    C - 1
<PAGE>   50
         If a person or group were to acquire 15% or more of the Voting Shares
of the Company, each Right then outstanding (other than Rights beneficially
owned by the acquiring person which would become null and void) would become a
right to buy that number of Common Shares (or under certain circumstances, the
equivalent number of one one- thousandths of a Preferred Share) that at the
time of such acquisition would have a market value of two times the Purchase
Price of the Right.

         If the Company were acquired in a merger or other business combination
transaction or more than 50% of its consolidated assets or earning power were
sold, proper provision will be made so that each holder of a Right will
thereafter have the right to receive, upon the exercise thereof at the then
current Purchase Price of the Right, that number of shares of common stock of
the acquiring company which at the time of such transaction would have a market
value of two times the Purchase Price of the Right.

         Preferred Shares.  The dividend and liquidation rights, and the
non-redemption feature, of the Preferred Shares are designed so that the value
of one one-thousandth of a Preferred Share purchasable upon exercise of each
Right will approximate the value of one Common Share.  The Preferred Shares
issuable upon exercise of the Rights will be non- redeemable and rank junior to
all other series of the Company's preferred stock.  Each whole Preferred Share
will be entitled to receive a quarterly preferential dividend in an amount per
share equal to the greater of (i) $1.00 in cash, or (ii) in the aggregate,
1,000 times the dividend declared on the Common Shares.  In the event of
liquidation, the holders of the Preferred Shares will be entitled to receive a
preferential liquidation payment equal to the greater of (i) $1,000 per share,
or (ii) in the aggregate, 1,000 times the payment made on the Common Shares.
In the event of any merger, consolidation or other transaction in which Common
Shares are exchanged for or changed into other stock or securities, cash or
other property, each whole Preferred Share will be entitled to receive 1,000
times the amount received per Common Share.  Each whole Preferred Share shall
be entitled to 1,000 votes on all matters submitted to a vote of the
stockholders of the Company, and Preferred Shares shall generally vote together
as one class with the Common Stock and any other capital stock on all matters
submitted to a vote of stockholders of the Company.

         The offer and sale of the Preferred Shares issuable upon exercise of
the Rights will be registered with the Securities and Exchange Commission, but
such registration will not be effective until the Rights become exercisable.
The Rights themselves are listed on the NASDAQ National Market System.

         Antidilution and Other Adjustments.  The number of one one-thousandths
of a Preferred Share or other securities or property issuable upon exercise of
the Rights, and the Purchase Price payable, are subject to customary
adjustments from time to time to prevent dilution.

         The number of outstanding Rights and the number of one one-thousandths
of a Preferred Share issuable upon exercise of each Right are also subject to
adjustment in the event of a stock split of the Common Shares or a stock
dividend on the Common Shares payable in Common Shares or subdivisions,
consolidations or combinations of the Common Shares occurring, in any such
case, prior to the Distribution Date.





                                     C - 2
<PAGE>   51
         Exchange Option.  At any time after the acquisition by a person or
group of affiliated or associated persons of beneficial ownership of 15% or
more of the outstanding Voting Shares of the Company and before the acquisition
by a person or group of 50% or more of the outstanding Voting Shares of the
Company, the Board of Directors may, at its option, issue Common Shares in
mandatory redemption of, and in exchange for, all or part of the then
outstanding and exercisable Rights (other than Rights owned by such person or
group which would become null and void) at an exchange ratio of one Common
Share (or one one-thousandth of a Preferred Share) for each two Common Shares
for which each Right is then exercisable, subject to adjustment.

         Redemption of Rights.  At any time prior to the first public
announcement that a person or group has become the beneficial owner of 15% or
more of the outstanding Voting Shares, the Board of Directors of the Company
may redeem all but not less than all the then outstanding Rights at a price of
$0.01 per Right (the "Redemption Price").  The redemption of the Rights may be
made effective at such time, on such basis and with such conditions as the
Board of Directors in its sole discretion may establish.  Immediately upon the
action of the Board of Directors ordering redemption of the Rights, the right
to exercise the Rights will terminate and the only right of the holders of
Rights will be to receive the Redemption Price.

         No Rights as Stockholder.  Until a Right is exercised, the holder
thereof, as such, will have no rights as a stockholder of the Company,
including, without limitation, the right to vote or to receive dividends.

         Amendment of Rights.  The terms of the Rights may be amended by the
Board of Directors of the Company without the consent of the holders of the
Rights, including an amendment to extend the Final Expiration Date, and,
provided a Distribution Date has not occurred, to extend the period during
which the Rights may be redeemed, except that after the first public
announcement that a person or group has become the beneficial owner of 15% or
more of the outstanding Voting Shares, no such amendment may materially and
adversely affect the interests of the holders of the Rights.

         THIS SUMMARY DESCRIPTION OF THE RIGHTS DOES NOT PURPORT TO BE COMPLETE
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE RIGHTS AGREEMENT, WHICH IS
HEREBY INCORPORATED HEREIN BY REFERENCE.

         A copy of the Rights Agreement has been filed with the Securities and
Exchange Commission as an Exhibit to a Registration Statement on Form 8-A dated
December 22, 1997.  A copy of the Rights Agreement is available free of charge
from the Company.





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