ITRON INC /WA/
SC 13E4/A, 1999-03-18
RADIO & TV BROADCASTING & COMMUNICATIONS EQUIPMENT
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<PAGE>   1

================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                  ------------
                                 AMENDMENT NO. 3
                                       TO
                                 SCHEDULE 13E-4
                          ISSUER TENDER OFFER STATEMENT
      (PURSUANT TO SECTION 13(e)(1) OF THE SECURITIES EXCHANGE ACT OF 1934)
                                  ------------
                                   ITRON, INC.
                                (Name of Issuer)
                                  ------------
                                   ITRON, INC.
                        (Name of Person Filing Statement)

                 6 3/4% CONVERTIBLE SUBORDINATED NOTES DUE 2004,
                CUSIP NOS. 465741-AA-4, U13126-AA-2, 465741-AC-0
                 (Title and CUSIP Number of Class of Securities)
                                  ------------
                               DAVID G. REMINGTON
                   VICE PRESIDENT AND CHIEF FINANCIAL OFFICER
                                   ITRON, INC.
                              2818 N. SULLIVAN ROAD
                            SPOKANE, WASHINGTON 99216
                                 (509) 924-9900
       (Name, Address and Telephone Number of Person Authorized to Receive
        Notices and Communications on Behalf of Person Filing Statement)
                                  ------------
                                   COPIES TO:
                               LINDA A. SCHOEMAKER
                                  PERKINS COIE
                          1201 THIRD AVENUE, 40TH FLOOR
                         SEATTLE, WASHINGTON 98101-3099
                                 (206) 583-8888
                                  ------------

                                FEBRUARY 11, 1999
     (Date Tender Offer First Published, Sent or Given to Security Holders)
                                  ------------

                            CALCULATION OF FILING FEE

<TABLE>
<CAPTION>
          TRANSACTION VALUATION(1)                 AMOUNT OF FILING FEE(2)
          ------------------------                 -----------------------
<S>                                                <C>
               $22,000,000                                $4,400*
</TABLE>

(1) Based on the book value of the notes to be received by Itron, Inc., in
    accordance with Rule 0-11(b) under the Securities Exchange Act of 1934, as
    amended.

(2) Calculated based on the transaction valuation multiplied by one-fiftieth of
    one percent, in accordance with Rule 0-11(b) under the Securities Exchange
    Act of 1934, as amended.

*   Previously paid.

[ ] Check box if any part of the fee is offset as provided by Rule 0-11(a)(2)
    and identify the filing with which the offsetting fee was previously paid.
    Identify the previous filing by registration statement number, or the form
    or schedule and the date of its filing.

Amount previously paid:  N/A                               Filing party:     N/A
Form or registration no.:  N/A                             Date filed:       N/A

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

<PAGE>   2


        This Amendment No. 1 to Schedule 13E-4, which constitutes the final
amendment (the "Final Amendment") to such Schedule 13E-4, relates to an offer by
Itron, Inc. (the "Company") to exchange (the "Exchange Offer") up to $15,840,000
aggregate principal amount of its new 6 3/4% Convertible Subordinated Notes due
2004 (the ' Exchange Notes") for up to $22,000,000 aggregate principal amount of
its original 6 3/4% Convertible Subordinated Notes due 2004 (the " Original
Notes"). The purpose of filing this Final Amendment is to report the results of
the Exchange Offer pursuant to the Company's Offering Circular dated February
11, 1999.

        The Company completed the Exchange Offer on Thursday, March 18, 1999.
The Exchange Offer terminated on Friday, March 12, 1999, at 5:00 p.m. New York
City time. A total of $56,730,000 aggregate principal amount of Original Notes
was validly tendered for exchange. The Company accepted $22,000,000 for
exchange, meaning that the Company accepted for exchange approximately 38.8% of
the Original Notes tendered by each noteholder on a pro rata basis. A total of
$15,834,000 aggregate principal amount of Exchange Notes were issued as of March
12, 1999, with $6,000 in cash paid in lieu of fractional interests to tendering
noteholders pursuant to the terms of the Exchange Offer.

ITEM 9. MATERIAL TO BE FILED AS EXHIBITS

        (a)(1) Offering Circular dated February 11, 1999.* (Exhibit (a)(1))

        (a)(2) Form of Letter of Transmittal.* (Exhibit (a)(2))

        (a)(3) Form of Notice of Guaranteed Delivery.* (Exhibit (a)(3))

        (a)(4) Letter to Brokers, Dealers, Commercial Banks, Trust Companies and
Other Nominees, dated February 11, 1999.* (Exhibit (a)(4))

        (a)(5) Letter to Clients for use by Brokers, Dealers, Commercial Banks,
Trust Companies and Other Nominees, dated February 11, 1999.* (Exhibit (a)(5))

        (a)(6) Press Release, dated February 26, 1999.** (Exhibit (a)(6))

        (a)(7) Press Release, dated March 10, 1999.*** (Exhibit (a)(7)

        (a)(8) Press Release, dated March 18, 1999

        (b) Not applicable.

        (c) Form of Indenture by and between the Company and Chase Manhattan
Bank and Trust Company, National Association, as Trustee.* (Exhibit (c))

        (c)(1) Conformed Copy of Indenture, dated as of March 12, 1999, by and
between the Company and Chase Manhattan Bank and Trust Company of California,
National Association, as Trustee.

        (d) Not applicable.

        (e) Not applicable.

        (f) Not applicable.



<PAGE>   3

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

* Previously filed as the exhibit designated above to the Company's Schedule
13E-4 Issuer Tender Offer Statement dated February 11, 1999, and incorporated
into this Amendment No. 2 to Schedule 13E-4 by reference.

** Previously filed as the exhibit designated above to the Company's Amendment
No. 1 to Schedule 13E-4 Issuer Tender Offer Statement, dated February 26, 1999,
and incorporated into this Amendment No. 2 to Schedule 13E-4 by reference.

*** Previously filed as the exhibit designated above to the Company's Amendment
No. 2 to Schedule 13E-4 Issuer Tender Offer Statement, dated March 11, 1999, and
incorporated into this Amendment No. 3 to Schedule 13E-4 by reference.



                                      -3-
<PAGE>   4

                                    SIGNATURE

        After due inquiry, and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.

                                            ITRON, INC.



                                            By:  DAVID G. REMINGTON
                                               David G. Remington
                                               Vice President and Chief
                                               Financial Officer



Dated:  March 18, 1999


                                      -4-

<PAGE>   1

                                                                     EXHIBIT 1.C

                                    INDENTURE



                                   ITRON, INC.

                                       TO

              CHASE MANHATTAN BANK AND TRUST COMPANY, N.A., TRUSTEE

                 6 3/4% CONVERTIBLE SUBORDINATED NOTES DUE 2004





                           DATED AS OF MARCH 12, 1999




<PAGE>   2

<TABLE>
<S>                                                                                         <C>
ARTICLE I.  DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION                          1

    SECTION 1.01.   Definitions                                                              1
    SECTION 1.02.   Compliance Certificates and Opinions                                     7
    SECTION 1.03.   Form of Documents Delivered to Trustee.                                  8
    SECTION 1.04.   Acts of Holders; Record Dates.                                           8
    SECTION 1.05.   Notices, Etc., to Trustee and Company.                                   9
    SECTION 1.06.   Notice to Holders; Waiver.                                              10
    SECTION 1.07.   Conflict With Trust Indenture Act                                       10
    SECTION 1.08.   Effect of Headings and Table of Contents.                               10
    SECTION 1.09.   Successors and Assigns.                                                 10
    SECTION 1.10.   Separability Clause.                                                    10
    SECTION 1.11.   Benefits of Indenture.                                                  11
    SECTION 1.12.   Governing Law.                                                          11
    SECTION 1.13.   Legal Holidays.                                                         11

ARTICLE II.  SECURITY FORMS                                                                 11

    SECTION 2.01.   Forms Generally                                                         11
    SECTION 2.02.   Form of Face of Security                                                12
    SECTION 2.03.   Form of Reverse of Security                                             16
    SECTION 2.04.   Form of Trustee's Certificate of Authentication                         18
    SECTION 2.05.   Form of Conversion Notice                                               18
    SECTION 2.06.   Form of Certification                                                   19
    SECTION 2.07.   Form of Transfer Certificate                                            20

ARTICLE III.  THE SECURITIES                                                                23

    SECTION 3.01.   Title and Terms; Issuable in Series                                     23
    SECTION 3.02.   Denominations                                                           24
    SECTION 3.03.   Execution, Authentication, Delivery and Dating                          24
    SECTION 3.04.   Global Securities                                                       25
    SECTION 3.05.   Registration; Registration of Transfer and Exchange                     26
    SECTION 3.06.   Mutilated, Destroyed, Lost and Stolen Securities                        29
    SECTION 3.07.   Payment of Interest; Interest Rights Preserved                          30
    SECTION 3.08.   Persons Deemed Owners                                                   31
    SECTION 3.09.   Cancellation                                                            31
    SECTION 3.10.   Computation of Interest                                                 31

ARTICLE IV.  SATISFACTION AND DISCHARGE                                                     31

    SECTION 4.01.   Satisfaction and Discharge of Indenture                                 31
    SECTION 4.02.   Application of Trust Money                                              32

ARTICLE V.  REMEDIES                                                                        32

    SECTION 5.01.   Events of Default                                                       32
    SECTION 5.02.   Acceleration of Maturity; Rescission and Annulment.                     34
    SECTION 5.03.   Collection of Indebtedness and Suits for Enforcement by Trustee.        34
    SECTION 5.04.   Trustee May File Proofs of Claim                                        35
    SECTION 5.05.   Trustee May Enforce Claims Without Possession of Securities             35
</TABLE>





<PAGE>   3

<TABLE>
<S>                                                                                        <C>
    SECTION 5.06.   Application of Money Collected                                          35
    SECTION 5.07.   Limitation on Suits                                                     36
    SECTION 5.08.   Unconditional Right of Holders to Receive Principal, Premium and
                    Interest and to Convert                                                 36
    SECTION 5.09.   Restoration of Rights and Remedies                                      36
    SECTION 5.10.   Rights and Remedies Cumulative                                          37
    SECTION 5.11.   Delay or Omission Not Waiver                                            37
    SECTION 5.12.   Control by Holders                                                      37
    SECTION 5.13.   Waiver of Past Defaults                                                 37
    SECTION 5.14.   Undertaking for Costs                                                   37
    SECTION 5.15.   Waiver of Usury, Stay or Extension Laws                                 38

ARTICLE VI.  THE TRUSTEE                                                                    38

    SECTION 6.01.   Certain Duties and Responsibilities                                     38
    SECTION 6.02.   Notice of Defaults                                                      38
    SECTION 6.03.   Certain Rights of Trustee                                               39
    SECTION 6.04.   Not Responsible for Recitals or Issuance of Securities                  39
    SECTION 6.05.   May Hold Securities                                                     40
    SECTION 6.06.   Money Held in Trust                                                     40
    SECTION 6.07.   Compensation and Reimbursement                                          40
    SECTION 6.08.   Disqualification; Conflicting Interests                                 40
    SECTION 6.09.   Corporate Trustee Required; Eligibility                                 41
    SECTION 6.10.   Resignation and Removal; Appointment of Successor                       41
    SECTION 6.11.   Acceptance of Appointment by Successor                                  42
    SECTION 6.12.   Merger, Conversion, Consolidation or Succession to Business             42
    SECTION 6.13.  Preferential Collection of Claims Against Company                        42
    SECTION 6.14.  Appointment of Authenticating Agent                                      42
    SECTION 6.15.  Appointment of Co-Trustee                                                44

ARTICLE VII.  HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY                             44

    SECTION 7.01.   Company to Furnish Trustee Names and Addresses of Holders               44
    SECTION 7.02.   Preservation of Information; Communications to Holders                  44
    SECTION 7.03.   Reports by Trustee                                                      45
    SECTION 7.04.   Reports by Company                                                      45


ARTICLE VIII.  CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE                         44

    SECTION 8.01.   Company May Consolidate, Etc., Only on Certain Terms                    45
    SECTION 8.02.   Successor Substituted                                                   46

ARTICLE IX.  SUPPLEMENTAL INDENTURES                                                        46

    SECTION 9.01.   Supplemental Indentures Without Consent of Holders                      46
    SECTION 9.02.   Supplemental Indentures With Consent of Holders                         46
    SECTION 9.03.   Execution of Supplemental Indentures                                    47
    SECTION 9.04.   Effect of Supplemental Indentures                                       47
    SECTION 9.05.   Conformity With Trust Indenture Act                                     47
    SECTION 9.06.   Reference in Securities to Supplemental Indentures                      47
</TABLE>



<PAGE>   4

<TABLE>
<S>                                                                                         <C>
ARTICLE X.  COVENANTS                                                                       48

    SECTION 10.01.  Payment of Principal, Premium and Interest                              48
    SECTION 10.02.  Maintenance of Office or Agency                                         48
    SECTION 10.03.  Money for Security Payments To Be Held in Trust                         48
    SECTION 10.04.  Statement by Officers as to Default                                     49
    SECTION 10.05.  Existence                                                               49
    SECTION 10.06.  Maintenance of Properties                                               49
    SECTION 10.07.  Payment of Taxes and Other Claims                                       50
    SECTION 10.08.  Waiver of Certain Covenants                                             50

ARTICLE XI.  REDEMPTION OF SECURITIES                                                       50

    SECTION 11.01.  Right of Redemption                                                     50
    SECTION 11.02.  Applicability of Article                                                50
    SECTION 11.03.  Election to Redeem; Notice to Trustee                                   50
    SECTION 11.04.  Selection by Trustee of Securities to Be Redeemed                       50
    SECTION 11.05.  Notice of Redemption                                                    51
    SECTION 11.06.  Deposit of Redemption Price                                             51
    SECTION 11.07.  Securities Payable on Redemption Date                                   51
    SECTION 11.08.  Securities Redeemed in Part                                             52
    SECTION 11.09.  Conversion Arrangement on Call for Redemption                           52

ARTICLE XII.  SUBORDINATION OF SECURITIES                                                   53

    SECTION 12.01.  Securities Subordinate to Senior Indebtedness                           53
    SECTION 12.02.  Payment Over of Proceeds Upon Dissolution, Etc.                         53
    SECTION 12.03.  No Payment When Senior Indebtedness in Default                          54
    SECTION 12.04.  Payment Permitted if No Default                                         54
    SECTION 12.05.  Subrogation to Rights of Holders of Senior Indebtedness                 54
    SECTION 12.06.  Provisions Solely to Define Relative Rights                             54
    SECTION 12.07.  Trustee to Effectuate Subordination                                     55
    SECTION 12.08.  No Waiver of Subordination Provisions                                   55
    SECTION 12.09.  Notice to Trustee                                                       55
    SECTION 12.10.  Reliance on Judicial Order or Certificate of Liquidating Agent          56
    SECTION 12.11.  Trustee Not Fiduciary for Holders of Senior Indebtedness                56
    SECTION 12.12.  Rights of Trustee as Holder of Senior Indebtedness; Preservation of
                    Trustee's Rights                                                        56
    SECTION 12.13.  Article Applicable to Paying Agents                                     56
    SECTION 12.14.  Certain Conversions Deemed Payment                                      57

ARTICLE XIII.  CONVERSION OF SECURITIES                                                     57

    SECTION 13.01.  Conversion Privilege and Conversion Price                               57
    SECTION 13.02.  Exercise of Conversion Privilege                                        58
    SECTION 13.03.  Fractions of Shares                                                     59
    SECTION 13.04.  Adjustment of Conversion Price                                          59
    SECTION 13.05.  Notice of Adjustments of Conversion Price                               63
    SECTION 13.06.  Notice of Certain Corporate Action                                      63
    SECTION 13.07.  Company to Reserve Common Stock                                         64
    SECTION 13.08.  Taxes on Conversions                                                    64
</TABLE>



<PAGE>   5

<TABLE>
<S>                                                                                         <C>
    SECTION 13.09.  Covenant as to Common Stock                                             64
    SECTION 13.10.  Cancellation of Converted Securities                                    64
    SECTION 13.11.  Provisions in Case of Reclassification, Consolidation, Merger or Sale
                    of Assets                                                               64

ARTICLE XIV.  RIGHT TO REQUIRE REPURCHASE                                                   65

    SECTION 14.01.  Right to Require Repurchase                                             65
    SECTION 14.02.  Notice; Method of Exercising Repurchase Right                           65
    SECTION 14.03.  Deposit of Repurchase Price                                             66
    SECTION 14.04.  Securities Not Repurchased on Repurchase Date                           66
    SECTION 14.05.  Securities Repurchased in Part                                          66
    SECTION 14.06.  Certain Definitions                                                     66

ARTICLE XV.  DEFEASANCE AND COVENANT DEFEASANCE                                             67

    SECTION 15.01.  Company's Option to Effect Defeasance or Covenant Defeasance            67
    SECTION 15.02.  Defeasance and Discharge                                                67
    SECTION 15.03.  Covenant Defeasance                                                     67
    SECTION 15.04.  Conditions to Defeasance or Covenant Defeasance                         67
    SECTION 15.05.  Deposited Money and U.S. Government Obligations to Be Held in Trust;
                    Other Miscellaneous Provisions                                          69
    SECTION 15.06.  Reinstatement                                                           69

ARTICLE XVI.  IMMUNITY                                                                      70

    SECTION 16.01.  Personal Immunity of Incorporators, Shareholders, 
                    Directors and Officers                                                  70
</TABLE>



TESTIMONIUM

SIGNATURES AND SEALS

ACKNOWLEDGMENTS



<PAGE>   6

        INDENTURE, dated as of March 12, 1999, between ITRON, INC., a
corporation duly organized and existing under the laws of the State of
Washington (herein called the "Company"), having its principal office at 2818 N.
Sullivan Road, Spokane, Washington 99216, and CHASE MANHATTAN BANK AND TRUST
COMPANY, NATIONAL ASSOCIATION, a national banking association, as Trustee
(herein called the "Trustee").

                             RECITALS OF THE COMPANY

        The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance of its 6 3/4% Convertible Subordinated
Notes Due 2004 (herein called the "Securities"), to be issued as in this
Indenture provided.

        The Securities in an aggregate principal amount of $15,834,000 are being
issued pursuant to an exchange offer by the Company for $22,000,000 aggregate
principal amount of Original Notes (as defined below), issued pursuant to the
1997 Indenture (as defined below).

        All things necessary to make the Securities, when executed by the
Company and authenticated and delivered hereunder and duly issued by the
Company, the valid obligations of the Company, and to make this Indenture a
valid agreement of the Company, in accordance with their and its terms, have
been done.

        NOW, THEREFORE, THIS INDENTURE WITNESSETH:

        For and in consideration of the premises and the purchase of the
Securities by the Holders thereof, it is mutually agreed, for the equal and
proportionate benefit of all Holders of the Securities or of any series thereof,
as follows:

       ARTICLE I. DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

SECTION 1.01. DEFINITIONS

        For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:

                1. the terms defined in this Article have the meanings assigned
to them in this Article and include the plural as well as the singular;

                2. all other terms used herein which are defined in the Trust
Indenture Act, either directly or by reference therein, have the meanings
assigned to them therein;

                3. all accounting terms not otherwise defined herein have the
meanings assigned to them in accordance with generally accepted accounting
principles, and, except as otherwise herein expressly provided, the term
"generally accepted accounting principles" with respect to any computation
required or permitted hereunder shall mean such accounting principles as are
generally accepted at the date of such computation;

                4. unless the context otherwise requires, any reference to an
"Article" or a "Section" refers to an Article or Section, as the case may be, of
this Indenture; and

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

        Certain terms used in Article XIV have the meanings specified therein.



                                      -1-
<PAGE>   7

        "Act," when used with respect to any Holder, has the meaning specified
in Section 1.04.

        "Affiliate" of any specified Person means any other Person who directly,
or indirectly through one or more intermediaries, controls, is controlled by, or
is under common control with, such specified Person. For the purposes of this
definition, "control" when used with respect to any specified Person means the
power to direct the management and policies of such Person, directly or
indirectly, whether through the ownership of voting securities, by contract or
otherwise; and the terms "controlling" and "controlled" have meanings
correlative to the foregoing.

        "Agent Member" means any member of, or participant in, the Depositary.

        "Applicable Procedures" means, with respect to any transfer or
transaction involving a Global Security or beneficial interest therein, the
rules and procedures of Euroclear and CEDEL, and of the Depositary for such
Security, in each case to the extent applicable to such transaction and as in
effect from time to time.

        "Authenticating Agent" means any Person authorized by the Trustee
pursuant to Section 6.14 to act on behalf of the Trustee to authenticate
Securities.

        "Board of Directors" means either the board of directors of the Company
or any duly authorized committee of that board.

        "Board Resolution" means a copy of a resolution certified by the
Secretary or an Assistant Secretary of the Company to have been duly adopted by
the Board of Directors and to be in full force and effect on the date of such
certification, and delivered to the Trustee.

        "Business Day" means a day on which banking institutions are open for
business and carrying out transactions in Dollars at the relevant place of
payment.

        "CEDEL" means Cedel Bank, societe anonyme (or any successor securities
clearing agency).

        "Change in Control" has the meaning specified in Section 14.06.

        "Closing Price" on any Trading Day with respect to the per share price
of Common Stock means the last reported sales price regular way or, in case no
such reported sale takes place on such Trading Day, the average of the reported
closing bid and asked prices regular way, in either case on the New York Stock
Exchange or, if the Common Stock is not listed or admitted to trading on the New
York Stock Exchange, on the principal national securities exchange on which the
Common Stock is listed or admitted to trading or, if not listed or admitted to
trading on any national securities exchange, on The Nasdaq Stock Market
("Nasdaq") or, if the Common Stock is not listed or admitted to trading on any
national securities exchange or Nasdaq, the average of the closing bid and asked
prices in the over-the-counter market as furnished by any New York Stock
Exchange member firm that is selected from time to time by the Company for that
purpose and is reasonably acceptable to the Trustee.

        "Commencement Date" has the meaning specified in Section 13.04.

        "Commission" means the Securities and Exchange Commission, as from time
to time constituted, created under the Exchange Act, or, if at any time after
the execution of this instrument such Commission is not existing and performing
the duties now assigned to it under the Trust Indenture Act, then the body
performing such duties at such time.

        "Common Stock" includes any stock of any class of the Company which has
no preference in respect of dividends or of amounts payable in the event of any
voluntary or involuntary liquidation, dissolution or winding-up of the Company
and which is not subject to redemption by the Company. However, subject to the
provisions of Section 13.11, shares issuable on conversion of Securities shall
include only shares of the class designated as 



                                      -2-
<PAGE>   8

Common Stock of the Company at the date of this instrument or shares of any
class or classes resulting from any reclassification or reclassifications
thereof and which have no preference in respect of dividends or of amounts
payable in the event of any voluntary or involuntary liquidation, dissolution or
winding-up of the Company and which are not subject to redemption by the
Company; provided that if at any time there shall be more than one such
resulting class, the shares of each such class then so issuable shall be
substantially in the proportion which the total number of shares of such class
resulting from all such reclassifications bears to the total number of shares of
all such classes resulting from all such reclassifications.

        "Company" means the Person named as the "Company" in the first paragraph
of this instrument until a successor Person shall have become such pursuant to
the applicable provisions of this Indenture, and thereafter "Company" shall mean
such successor Person.

        "Company Request" or "Company Order" means a written request or order
signed in the name of the Company by its Chairman of the Board, its Vice
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 Trustee.

        "Corporate Trust Office" means the principal office of the Trustee in
the city at which at any particular time its corporate trust business shall be
administered. As of the date hereof, the Corporate Trust Office of the Trustee
is located at 101 California Street, Suite 2725, San Francisco, California
94111.

        "corporation" means a corporation, association, company, joint-stock
company or business trust.

        "Defaulted Interest" has the meaning specified in Section 3.07.

        "Definitive Security" means a certificated Security in the form set
forth in Section 2.02 and 2.03.

        "Depositary" means, with respect to the Securities issued in whole or in
part in the form of one or more Global Securities, a clearing agency registered
under the Exchange Act that is designated to act as Depositary for such
Securities as contemplated by Section 2.01 (or any successor securities clearing
agency so registered).

        "Distribution Date" has the meaning specified in Section 13.04.

        "Dollar" or "U.S.$" means a Dollar or other equivalent unit in such coin
or currency of the United States as at the time shall be legal tender for the
payment of public and private debts.

        "DTC" means The Depository Trust Company, a New York corporation.

        "Euroclear" means the Euroclear Systems (or any successor securities
clearing agency).

        "Event of Default" has the meaning specified in Section 5.01.

        "Exchange Act" means the Securities Exchange Act of 1934 as it may be
amended from time to time, and any successor act thereto, and the rules and
regulations of the Commission promulgated thereunder.

        "Expiration Date" has the meaning specified in Section 1.04.

        "Expiration Time" has the meaning specified in Section 13.04.

        "Global Security" means a Security that is registered in the Security
Register in the name of a Depositary or a nominee thereof.

        "Holder" means a Person in whose name a Security is registered in the
Security Register.



                                      -3-
<PAGE>   9

        "Indenture" means this instrument as originally executed or as it may
from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof,
including, for all purposes of this instrument and any such supplemental
indenture, the provisions of the Trust Indenture Act that are deemed to be a
part of and govern this instrument and any such supplemental indenture,
respectively.

        "Institutional Accredited Investor" means an institutional "accredited
investor" as described in Rule 501(a)(1), (2), (3) or (7) under the Securities
Act.

        "Interest Payment Date" means the Stated Maturity of an installment of
interest on the Securities.

        "Issue Date" means the date of first issuance of the Securities under
this Indenture.

        "Maturity," when used with respect to any Security, means the date on
which the principal of such Security or an installment of principal becomes due
and payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, call for redemption, exercise of the repurchase
right or otherwise.

        "Non-Recourse Obligation" means indebtedness or other obligation or that
portion of indebtedness or other obligation incurred by a Subsidiary (the
"Non-Recourse Subsidiary") with respect to the acquisition of assets not
previously owned by the Company or any Subsidiary or the financing of a project
involving the development or expansion of properties of the Company or any
Subsidiary (i) as to which neither the Company nor any of its Subsidiaries
(other than the Non-Recourse Subsidiary) (a) provides credit support (including
any undertaking, agreement or instrument that would constitute indebtedness),
(b) is directly or indirectly liable (as a guarantor or otherwise), or (c)
constitutes the lender; and (ii) no default with respect to which would permit
(upon notice, lapse of time or both) any holder of any other indebtedness of the
Company or any of its Subsidiaries to declare a default under such other
indebtedness or cause the payment thereof to be accelerated or payable prior to
its stated maturity; and (iii) as to which the lenders have been notified in
writing that they will not have any recourse to the stock or assets of the
Company or any Subsidiary other than the assets that were acquired with the
proceeds of such transaction or the project financed with the proceeds of such
transaction (and the proceeds thereof).

        "Notice of Default" means a written notice of the kind specified in
Section 5.01(4) or 5.01(5).

        "Officers' Certificate" means a certificate signed by any of the
Chairman of the Board, a Vice Chairman of the Board, the President or a Vice
President, and by any of the Treasurer, an Assistant Treasurer, the Secretary or
an Assistant Secretary, of the Company, and delivered to the Trustee. One of the
officers signing an Officers' Certificate given pursuant to Section 10.04 shall
be the principal executive, financial or accounting officer of the Company.

        "Opinion of Counsel" means a written opinion of counsel, who may be
counsel for the Company.

        "Original Notes" means the Company's 6 3/4% Convertible Subordinated
Notes due 2004 issued pursuant to that certain Indenture dated March 12, 1997 by
the Company to Chase Manhattan Bank and Trust Company, National Association
(formerly known as Chemical Trust Company of California) (the "1997 Indenture").

        "Outstanding," when used with respect to Securities, means, as of the
date of determination, all Securities theretofore authenticated and delivered
under this Indenture, except:

                (i) Securities theretofore cancelled by the Trustee or delivered
to the Trustee for cancellation;

                (ii) Securities for whose payment or redemption money in the
necessary amount has been theretofore deposited with the Trustee or any Paying
Agent (other than the Company) in trust or set aside and segregated in trust by
the Company (if the Company shall act as its own Paying Agent) for the Holders
of such Securities; provided that, 



                                      -4-
<PAGE>   10

if such Securities are to be redeemed, notice of such redemption shall have been
duly given pursuant to this Indenture or provision therefor satisfactory to the
Trustee shall have been made;

                (iii) Securities which have been paid pursuant to Section 3.06
or in exchange for or in lieu of which other Securities have been authenticated
and delivered pursuant to this Indenture, other than any such Securities in
respect of which there shall have been presented to the Trustee proof
satisfactory to it that such Securities are held by a bona fide purchaser in
whose hands such Securities are valid obligations of the Company; and

                (iv) Securities which have been defeased pursuant to Section
15.02;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given, made or taken any
request, demand, authorization, direction, notice, consent, waiver or other
action hereunder as of any date, Securities owned by the Company or any other
obligor upon the Securities or any Affiliate of the Company or of such other
obligor shall be disregarded and deemed not to be Outstanding, except that, in
determining whether the Trustee shall be protected in relying upon any such
request, demand, authorization, direction, notice, consent, waiver or other
action, only Securities which the Trustee knows to be so owned shall be so
disregarded. Securities so owned which have been pledged in good faith may be
regarded as Outstanding if the pledgee establishes to the satisfaction of the
Trustee the pledgee's right so to act with respect to such Securities and that
the pledgee is not the Company or any other obligor upon the Securities or any
Affiliate of the Company or of such other obligor.

        "Paying Agent" means any Person authorized by the Company to pay the
principal of (and premium, if any) or interest on any Securities on behalf of
the Company.

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

        "Predecessor Security" of any particular Security means every previous
Security evidencing all or a portion of the same debt as that evidenced by such
particular Security; and, for the purposes of this definition, any Security
authenticated and delivered under Section 3.06 in exchange for or in lieu of a
mutilated, destroyed, lost or stolen Security shall be deemed to evidence the
same debt as the mutilated, destroyed, lost or stolen Security.

        "Purchased Shares" has the meaning specified in Section 13.04.

        "Redemption Date," when used with respect to any Security to be
redeemed, means the date fixed for such redemption by or pursuant to this
Indenture.

        "Redemption Price," when used with respect to any Security to be
redeemed, means the price at which it is to be redeemed as set forth in the
Securities.

        "Reference Date" has the meaning specified in Section 13.04.

        "Regular Record Date" for the interest payable on any Interest Payment
Date means the March 15 or September 15 (whether or not a Business Day), as the
case may be, next preceding such Interest Payment Date.

        "Regulation S" means Regulation S under the Securities Act (or any
successor provision), as it may be amended from time to time.

        "Regulation S Global Security" has the meaning specified in Section
2.01.

        "Repurchase Date" has the meaning specified in Section 14.01.



                                      -5-
<PAGE>   11

        "Repurchase Price" has the meaning specified in Section 14.01.

        "Responsible Officer," when used with respect to the Trustee, means the
President or any Vice President, Assistant Vice President or Trust Officer of
the Trustee to whom any matter has been referred because of such officer's
knowledge and familiarity with the particular subject.

        "Restricted Global Security" has the meaning specified in Section 2.01.

        "Restricted Period" means the period starting on the date first written
above and ending on (i) in the case of the Regulation S Securities, March 18,
1999 and (ii) in the case of the Rule 144A Securities, April 15, 1999.

        "Restricted Security" means a Security required to bear the restricted
securities legend set forth in Section 2.02.

        "Rule 144A" means Rule 144A under the Securities Act (or any successor
provision), as it may be amended from time to time.

        "Securities" has the meaning stated in the first recital of this
Indenture and more particularly means any Securities authenticated and delivered
under this Indenture and "Security" means one of such Securities.

        "Securities Act" means the Securities Act of 1933 as it may be amended
from time to time, and any successor act thereto, and the rules and regulations
of the Commission promulgated thereunder.

        "Security Register" and "Security Registrar" have the respective
meanings specified in Section 3.05.

        "Senior Indebtedness" means the principal of and premium, if any, and
interest on all indebtedness of the Company for money borrowed, other than the
Securities and other than the Original Notes, whether outstanding on the date of
execution of the Indenture or thereafter created, incurred, guaranteed or
assumed, except such indebtedness that by the terms of the instrument or
instruments by which such indebtedness was created or incurred expressly
provides that it (i) is junior in right of payment to the Securities or any
other indebtedness of the Company for borrowed money or (ii) ranks pari passu in
right of payment to the Securities. For the purposes of certainty, the
Securities will rank pari passu in right of payment to the Original Notes. The
term "indebtedness for money borrowed" when used with respect to the Company is
defined to mean (i) any obligation of, or any obligation guaranteed by, the
Company for the repayment of borrowed money, whether or not evidenced by bonds,
debentures, notes or other written instruments, (ii) all obligations of the
Company with respect to interest rate hedging agreements to hedge interest rates
relating to Senior Indebtedness of the Company, (iii) any deferred payment
obligation of, or any such obligation guaranteed by, the Company for the payment
of the purchase price of property or assets evidenced by a note or similar
instrument, and (iv) any obligation of, or any such obligation guaranteed by,
the Company for the payment of rent or other amounts under a lease of property
or assets which obligation is required to be classified and accounted for as a
capitalized lease on the balance sheet of the Company under generally accepted
accounting principles.

        "Significant Subsidiary" means any Subsidiary that would be a
"Significant Subsidiary" as defined in Rule 1-02 of Regulation S-X under the
Securities Act and the Exchange Act (as such regulation may from time to time be
amended).

        "Special Record Date" for the payment of any Defaulted Interest means a
date fixed by the Trustee pursuant to Section 3.07.

        "Stated Maturity," when used with respect to any Security or any
installment of principal thereof or interest thereon, means the date specified
in such Security as the fixed date on which the principal of such Security or
such installment of principal or interest is due and payable.



                                      -6-
<PAGE>   12

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

        "Surrendered Securities" has the meaning specified in Section 2.06.

        "Trading Day" means each Monday, Tuesday, Wednesday, Thursday and
Friday, other than any day on which securities are not traded on the applicable
securities exchange or in the applicable securities market.

        "Trustee" means the Person named as the "Trustee" in the first paragraph
of this instrument until a successor Trustee shall have become such pursuant to
the applicable provisions of this Indenture, and thereafter "Trustee" shall mean
such successor Trustee.

        "Trust Indenture Act" means the Trust Indenture Act of 1939 as in force
at the date as of which this instrument was executed and the rules and
regulations thereunder; provided, however, that in the event the Trust Indenture
Act of 1939 or such rules and regulations are amended after such date, "Trust
Indenture Act" means, to the extent required by any such amendment, the Trust
Indenture Act of 1939 and such rules and regulations as so amended.

        "United States" means the United States of America (including the States
thereof and the District of Columbia), its territories, its possessions and
other areas subject to its jurisdiction.

        "U.S. Government Obligation" has the meaning specified in Section 15.04.

        "Vice President," when used with respect to the Company or the Trustee,
means any vice president, whether or not designated by a number or a word or
words added before or after the title "vice president".

SECTION 1.02. COMPLIANCE CERTIFICATES AND OPINIONS

        Upon any application or request by the Company to the Trustee to take
any action under any provision of this Indenture, the Company shall furnish to
the Trustee an Officers' Certificate, if to be given by an officer of the
Company, or an Opinion of Counsel, if to be given by counsel, stating that all
conditions precedent, if any, provided for in this Indenture relating to the
proposed action have been complied with.

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

                (1) a statement that each individual signing such certificate or
opinion has read such covenant or condition and the definitions herein relating
thereto;

                (2) a brief statement as to the nature and scope of the
examination or investigation upon which the statements or opinions contained in
such certificate or opinion are based;

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

                (4) a statement as to whether, in the opinion of each such
individual, such condition or covenant has been complied with.



                                      -7-
<PAGE>   13

SECTION 1.03. FORM OF DOCUMENTS DELIVERED TO TRUSTEE.

        In any case where several matters are required to be certified by, or
covered by an opinion of, any specified Person, it is not necessary that all
such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

        Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to the matters upon which his certificate or opinion is based are
erroneous. Any such certificate or Opinion of Counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an officer or officers of the Company stating that the
information with respect to such factual matters is in the possession of the
Company, unless such counsel knows, or in the exercise of reasonable care should
know, that the certificate or opinion or representations with respect to such
matters are erroneous.

        Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

SECTION 1.04. ACTS OF HOLDERS; RECORD DATES.

        Any request, demand, authorization, direction, notice, consent, waiver
or other action provided or permitted by this Indenture to be given or taken by
Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by an agent duly
appointed in writing; and, except as herein otherwise expressly provided, such
action shall become effective when such instrument or instruments are delivered
to the Trustee and, where it is hereby expressly required, to the Company. Such
instrument or instruments (and the action embodied therein and evidenced
thereby) are herein sometimes referred to as the "Act" of the Holders signing
such instrument or instruments. Proof of execution of any such instrument or of
a writing appointing any such agent shall be sufficient for any purpose of this
Indenture and (subject to Section 6.01) conclusive in favor of the Trustee and
the Company, if made in the manner provided in this Section.

        The fact and date of the execution by any Person of any such instrument
or writing may be proved by the affidavit of a witness of such execution or by a
certificate of a notary public or other officer authorized by law to take
acknowledgments of deeds, certifying that the individual signing such instrument
or writing acknowledged to him the execution thereof. Where such execution is by
a signer acting in a capacity other than his individual capacity, such
certificate or affidavit shall also constitute sufficient proof of his
authority. The fact and date of the execution of any such instrument or writing,
or the authority of the Person executing the same, may also be proved in any
other manner which the Trustee deems sufficient. The ownership of Securities
shall be proved by the Security Register.

        Any request, demand, authorization, direction, notice, consent, waiver
or other Act of the Holder of any Security shall bind every future Holder of the
same Security and the Holder of every Security issued upon the registration of
transfer thereof or in exchange therefor or in lieu thereof in respect of
anything done, omitted or suffered to be done by the Trustee or the Company in
reliance thereon, whether or not notation of such action is made upon such
Security.

        The Company may set any day as a record date for the purpose of
determining the Holders of Outstanding Securities entitled to give or take any
request, demand, authorization, direction, notice, consent, waiver or other
action provided or permitted by this Indenture to be given or taken by Holders
of Securities; provided that the Company may not set a record date for, and the
provisions of this paragraph shall not apply with respect to, the giving or
making of any notice, declaration, request or direction referred to in the next
paragraph. If any record date 



                                      -8-
<PAGE>   14

is set pursuant to this paragraph, the Holders of Outstanding Securities on such
record date, and no other Holders, shall be entitled to take the relevant
action, whether or not such Holders remain Holders after such record date;
provided that no such action shall be effective hereunder unless taken on or
prior to the applicable Expiration Date by Holders of the requisite principal
amount of Outstanding Securities on such record date; and provided, further,
that for the purpose of determining whether Holders of the requisite principal
amount of such Securities have taken such action, no Security shall be deemed to
have been Outstanding on such record date unless it is also Outstanding on the
date such action is to become effective. Nothing in this paragraph shall prevent
the Company from setting a new record date for any action for which a record
date has previously been set pursuant to this paragraph (whereupon the record
date previously set shall automatically and with no action by any Person be
cancelled and of no effect), nor shall anything in this paragraph be construed
to render ineffective any action taken by Holders of the requisite principal
amount of Outstanding Securities on the date such action is taken. Promptly
after any record date is set pursuant to this paragraph, the Company, at its own
expense, shall cause notice of such record date, the proposed action by Holders
and the applicable Expiration Date to be given to the Trustee in writing and to
each Holder of Securities in the manner set forth in Section 1.06.

        The Trustee may set any day as a record date for the purpose of
determining the Holders of Outstanding Securities entitled to join in the giving
or making of (i) any Notice of Default, (ii) any declaration of acceleration
referred to in Section 5.02, (iii) any request to institute proceedings referred
to in Section 5.07(2) or (iv) any direction referred to in Section 5.12. If any
record date is set pursuant to this paragraph, the Holders of Outstanding
Securities on such record date, and no other Holders, shall be entitled to join
in such notice, declaration, request or direction, whether or not such Holders
remain Holders after such record date; provided that no such action shall be
effective hereunder unless taken on or prior to the applicable Expiration Date
by Holders of the requisite principal amount of Outstanding Securities on such
record date; and provided, further, that for the purpose of determining whether
Holders of the requisite principal amount of such Securities have taken such
action, no Security shall be deemed to have been Outstanding on such record date
unless it is also Outstanding on the date such action is to become effective.
Nothing in this paragraph shall be construed to prevent the Trustee from setting
a new record date for any action (whereupon the record date previously set shall
automatically and without any action by any Person be cancelled and of no
effect), nor shall anything in this paragraph be construed to render ineffective
any action taken by Holders of the requisite principal amount of Outstanding
Securities on the date such action is taken. Promptly after any record date is
set pursuant to this paragraph, the Trustee, at the Company's expense, shall
cause notice of such record date, the proposed action by Holders and the
applicable Expiration Date to be given to the Company in writing and to each
Holder of Securities in the manner set forth in Section 1.06.

        With respect to any record date set pursuant to this Section, the party
hereto that sets such record date may designate any day as the "Expiration Date"
and from time to time may change the Expiration Date to any earlier or later
day, provided that no such change shall be effective unless notice of the
proposed new Expiration Date is given to the other party hereto in writing, and
to each Holder of Securities in the manner set forth in Section 1.06, on or
before the existing Expiration Date. Notwithstanding the foregoing, no
Expiration Date shall be later than the 180th day after the applicable record
date and, if an Expiration Date is not designated with respect to any record
date set pursuant to this Section, the party hereto that set such record date
shall be deemed to have designated the 180th day after such record date as the
Expiration Date with respect thereto.

        Without limiting the foregoing, a Holder entitled hereunder to take any
action hereunder with regard to any particular Security may do so with regard to
all or any part of the principal amount of such Security or by one or more duly
appointed agents, each of which may do so pursuant to such appointment with
regard to all or any part of such principal amount.

SECTION 1.05. NOTICES, ETC., TO TRUSTEE AND COMPANY.

        Any request, demand, authorization, direction, notice, consent, waiver
or Act of Holders or other document provided or permitted by this Indenture to
be made upon, given or furnished to, or filed with,



                                      -9-
<PAGE>   15

                (1) the Trustee by any Holder or by the Company shall be
sufficiently given if made, given, furnished or filed in writing to or with the
Trustee at its Corporate Trust Office, Attention: Corporate Trust Department, or
at any other address previously furnished in writing to the Company by the
Trustee, or

                (2) the Company by the Trustee or by any Holder shall be
sufficiently given (unless otherwise herein expressly provided) if in writing
and mailed, first-class postage prepaid, to the Company, addressed to it at the
address of its principal office specified in the first paragraph of this
instrument or at any other address previously furnished in writing to the
Trustee by the Company.

SECTION 1.06. NOTICE TO HOLDERS; WAIVER.

        Where this Indenture provides for notice to Holders of any event, such
notice shall be sufficiently given (unless otherwise herein expressly provided)
if in writing and mailed, first-class postage prepaid, to each Holder affected
by such event, at his address as it appears in the Security Register, not later
than the latest date (if any), and not earlier than the earliest date (if any),
prescribed for the giving of such notice. In any case where notice to Holders is
given by mail, neither the failure to mail such notice, nor any defect in any
notice so mailed, to any particular Holder shall affect the sufficiency of such
notice with respect to other Holders. Where this Indenture provides for notice
in any manner, such notice may be waived in writing by the Person entitled to
receive such notice, either before or after the event, and such waiver shall be
the equivalent of such notice. Waivers of notice by Holders shall be filed with
the Trustee, but such filing shall not be a condition precedent to the validity
of any action taken in reliance upon such waiver.

        In case by reason of the suspension of regular mail service or by reason
of any other cause it shall be impracticable to give such notice by mail, then
such notification as shall be made with the approval of the Trustee shall
constitute a sufficient notification for every purpose hereunder.

SECTION 1.07. CONFLICT WITH TRUST INDENTURE ACT.

        If any provision hereof limits, qualifies or conflicts with a provision
of the Trust Indenture Act which is required under such Act to be a part of and
govern this Indenture, the latter provision shall control. If any provision of
this Indenture modifies or excludes any provision of the Trust Indenture Act
which may be so modified or excluded, the latter provision shall be deemed to
apply to this Indenture as so modified or to be excluded, as the case may be. To
the extent a Security conflicts with a provision in the Indenture, the Indenture
governs.

SECTION 1.08. EFFECT OF HEADINGS AND TABLE OF CONTENTS.

        The Article and Section headings herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.

SECTION 1.09. SUCCESSORS AND ASSIGNS.

        All covenants and agreements in this Indenture by the Company shall bind
its successors and assigns, whether so expressed or not.

SECTION 1.10. SEPARABILITY CLAUSE.

        In case any provision in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.



                                      -10-
<PAGE>   16

SECTION 1.11. BENEFITS OF INDENTURE.

        Nothing in this Indenture or in the Securities, express or implied,
shall give to any Person, other than the parties hereto and their successors
hereunder, the holders of Senior Indebtedness and the Holders of Securities, any
benefit or any legal or equitable right, remedy or claim under this Indenture.

SECTION 1.12. GOVERNING LAW.

        THIS INDENTURE AND THE SECURITIES SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAW OF THE STATE OF NEW YORK.

SECTION 1.13. LEGAL HOLIDAYS.

        In any case where any Interest Payment Date, Redemption Date, Repurchase
Date or Stated Maturity of any Security or the last date on which a Holder has
the right to convert his Securities shall not be a Business Day then
(notwithstanding any other provision of this Indenture or of the Securities)
payment of interest or principal (and premium, if any) or conversion of the
Securities need not be made on such date, but may be made on the next succeeding
Business Day with the same force and effect as if made on the Interest Payment
Date, Redemption Date, Repurchase Date or at the Stated Maturity, or on such
last day for conversion, provided that no interest shall accrue for the period
from and after such Interest Payment Date, Redemption Date, Repurchase Date or
Stated Maturity, as the case may be.

                           ARTICLE II. SECURITY FORMS

SECTION 2.01. FORMS GENERALLY.

        The Securities, the conversion notice and the Trustee's certificates of
authentication shall be in substantially the forms set forth in this Article,
with such appropriate insertions, omissions, substitutions and other variations
as are required or permitted by this Indenture, and may have such letters,
numbers or other marks of identification and such legends or endorsements placed
thereon as may be required to comply with the rules of any securities exchange
or Depositary therefor or as may, consistently herewith, be determined by the
officers executing such Securities, as evidenced by their execution of the
Securities.

        The definitive Securities shall be printed, lithographed or engraved on
steel engraved borders or may be produced in any other manner, all as determined
by the officers executing such Securities, as evidenced by their execution of
such Securities.

        In certain cases described elsewhere herein, the legends set forth in
the first four paragraphs of Section 2.02 may be omitted from Securities issued
hereunder.

        Upon their original issuance, the unrestricted Securities shall be
issued in the form of a single Global Security in definitive, fully registered
form without interest coupons, substantially in the form of Security set forth
in Section 2.02, with such applicable legends as are provided for in Section
2.02, except as otherwise permitted herein. Such Global Security shall be
registered in the name of DTC, as Depositary, or its nominee, duly executed by
the Company and authenticated by the Trustee as hereinafter provided, and
deposited with the Trustee, as custodian for DTC, for credit by DTC to the
respective accounts of beneficial owners of the Securities represented thereby
(or such other accounts as they may direct). Such Global Security, together with
its successor Securities which are Global Securities, are collectively herein
called the "Unrestricted Global Security."

        Upon their original issuance, Securities offered in reliance on Rule
144A shall be issued in the form of a single Global Security in definitive,
fully registered form without interest coupons, substantially in the form of
Security set forth in Sections 2.02 and 2.03, with such applicable legends as
are provided for in Section 2.02, except 



                                      -11-
<PAGE>   17

as otherwise permitted herein. Such Global Security shall be registered in the
name of DTC, as Depositary, or its nominee, duly executed by the Company and
authenticated by the Trustee as hereinafter provided, and deposited with the
Trustee, as custodian for DTC, for credit by DTC to the respective accounts of
beneficial owners of the Securities represented thereby (or such other accounts
as they may direct). Such Global Security, together with its Successor
Securities which are Global Securities, are collectively herein called the
"Restricted Global Security." Securities originally issued under Rule 144A will
become freely transferable under Rule 144(k) on April 15, 1999.

        Upon their original issuance, Securities offered in reliance on
Regulation S shall be issued in the form of a single Global Security in
definitive, fully registered form without interest coupons, substantially in the
form of Security set forth in Sections 2.02 and 2.03, with such applicable
legends as are provided for in Section 2.02, except as otherwise permitted
herein. Such Global Security shall be registered in the name of DTC, as
Depositary, or its nominee, duly executed by the Company and authenticated by
the Trustee as hereinafter provided, and deposited with the Trustee, as
custodian for DTC, for credit to the respective accounts of the beneficial
owners of the Securities represented thereby (or such other accounts as they may
direct) at the depositaries for Morgan Guaranty Trust Company of New York,
Brussels office, as operator of Euroclear, or CEDEL. Such Global Security,
together with its Successor Securities which are Global Securities, are
collectively herein called the "Regulation S Global Security." Securities
originally issued under Regulation S will become freely transferable under Rule
144(k) on March 18, 1999.

        Except as provided in Section 3.05, owners of beneficial interests in
the Global Securities will not be entitled to receive physical delivery of
certificated Securities.

        Neither the Company nor the Trustee shall have any responsibility for
any defect in the CUSIP or ISIN number that appears on any Security, check,
advice of payment or redemption or repurchase notice, and any such document may
contain a statement to the effect that CUSIP or ISIN numbers have been assigned
by an independent service for convenience of reference and that neither the
Company nor the Trustee shall be liable for any inaccuracy in such numbers.

SECTION 2.02. FORM OF FACE OF SECURITY.

        [INCLUDE IF SECURITY IS A RESTRICTED SECURITY, REGULATION S SECURITY OR
A DEFINITIVE SECURITY OTHER THAN A RESTRICTED GLOBAL SECURITY OR A REGULATION S
GLOBAL SECURITY:

        THIS SECURITY (OR ITS PREDECESSOR) WAS ORIGINALLY ISSUED IN A
TRANSACTION EXEMPT FROM REGISTRATION UNDER THE UNITED STATES SECURITIES ACT OF
1933, AS AMENDED (THE "SECURITIES ACT"), AND THIS SECURITY AND THE COMMON STOCK
ISSUABLE UPON THE CONVERSION THEREOF MAY NOT BE OFFERED, SOLD OR OTHERWISE
TRANSFERRED WITHIN THE UNITED STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF,
U.S. PERSONS (AS DEFINED IN REGULATION S UNDER THE SECURITIES ACT) IN THE
ABSENCE OF SUCH REGISTRATION OR IN A TRANSACTION EXEMPT FROM, OR NOT SUBJECT TO,
THE SECURITIES ACT. EACH PURCHASER OF THIS SECURITY THAT IS A QUALIFIED
INSTITUTIONAL BUYER (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) IS HEREBY
NOTIFIED THAT THE SELLER OF THIS SECURITY MAY BE RELYING ON THE EXEMPTION FROM
THE PROVISIONS OF SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A
THEREUNDER.

        THE HOLDER OF THIS SECURITY AGREES FOR THE BENEFIT OF THE COMPANY THAT
(A) THIS SECURITY AND THE COMMON STOCK ISSUABLE UPON THE CONVERSION THEREOF MAY
BE OFFERED, RESOLD, PLEDGED OR OTHERWISE TRANSFERRED, ONLY (i) INSIDE THE UNITED
STATES TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A QUALIFIED
INSTITUTIONAL BUYER (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) IN A
TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (ii) OUTSIDE THE UNITED
STATES 



                                      -12-
<PAGE>   18

IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH RULE 904 UNDER THE SECURITIES ACT,
(iii) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT
PROVIDED BY RULE 144 THEREUNDER (IF AVAILABLE) OR (iv) PURSUANT TO AN EFFECTIVE
REGISTRATION STATEMENT UNDER THE SECURITIES ACT, IN EACH OF CASES (i) THROUGH
(iv) IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF THE
UNITED STATES, AND (B) THE HOLDER WILL, AND EACH SUBSEQUENT HOLDER IS REQUIRED
TO, NOTIFY ANY PURCHASER OF THIS SECURITY AND ANY SHARES OF COMMON STOCK
ISSUABLE UPON THE CONVERSION THEREOF FROM IT OF THE RESALE RESTRICTIONS REFERRED
TO IN (A) ABOVE.

        THIS SECURITY, ANY SHARES OF COMMON STOCK ISSUABLE UPON ITS CONVERSION
AND ANY RELATED DOCUMENTATION MAY BE AMENDED OR SUPPLEMENTED FROM TIME TO TIME
TO MODIFY THE RESTRICTIONS ON AND PROCEDURES FOR RESALES AND OTHER TRANSFERS OF
THIS SECURITY AND ANY SUCH SHARES TO REFLECT ANY CHANGE IN APPLICABLE LAW OR
REGULATION (OR THE INTERPRETATION THEREOF) OR IN PRACTICES RELATING TO THE
RESALE OR TRANSFER OF RESTRICTED SECURITIES GENERALLY. THE HOLDER OF THIS
SECURITY AND ANY SUCH SHARES SHALL BE DEEMED BY THE ACCEPTANCE OF THIS SECURITY
AND ANY SUCH SHARES TO HAVE AGREED TO ANY SUCH AMENDMENT OR SUPPLEMENT.]

[INCLUDE IF SECURITY IS A RESTRICTED GLOBAL SECURITY OR REGULATION S GLOBAL
SECURITY:

        THE SECURITIES EVIDENCED BY THIS GLOBAL SECURITY (OR ITS PREDECESSOR)
WERE ORIGINALLY ISSUED IN A TRANSACTION EXEMPT FROM REGISTRATION UNDER THE
UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND
SUCH SECURITIES AND THE COMMON STOCK ISSUABLE UPON THE CONVERSION THEREOF MAY
NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED WITHIN THE UNITED STATES OR TO, OR
FOR THE ACCOUNT OR BENEFIT OF, U.S. PERSONS (AS DEFINED IN REGULATION S UNDER
THE SECURITIES ACT) IN THE ABSENCE OF SUCH REGISTRATION OR IN A TRANSACTION
EXEMPT FROM, OR NOT SUBJECT TO, THE SECURITIES ACT. EACH PURCHASER OF ANY
BENEFICIAL INTEREST IN THE SECURITIES THAT IS A QUALIFIED INSTITUTIONAL BUYER
(AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) IS HEREBY NOTIFIED THAT THE
SELLER OF SUCH BENEFICIAL INTEREST MAY BE RELYING ON THE EXEMPTION FROM THE
PROVISIONS OF SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER.

        EACH BENEFICIAL OWNER OF AN INTEREST IN ANY OF THE SECURITIES EVIDENCED
BY THIS GLOBAL SECURITY (INCLUDING ANY PARTICIPANT IN THE DEPOSITARY HOLDING THE
GLOBAL SECURITY THAT IS SHOWN AS HOLDING SUCH AN INTEREST ON THE RECORDS OF SUCH
DEPOSITARY AND EACH BENEFICIAL OWNER THAT HOLDS THROUGH SUCH PARTICIPANT) AGREES
FOR THE BENEFIT OF THE COMPANY THAT (A) ANY BENEFICIAL INTEREST IN THE
SECURITIES AND THE COMMON STOCK ISSUABLE UPON THE CONVERSION THEREOF MAY BE
OFFERED, RESOLD, PLEDGED OR OTHERWISE TRANSFERRED, ONLY (i) INSIDE THE UNITED
STATES TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A QUALIFIED
INSTITUTIONAL BUYER (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) IN A
TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (ii) OUTSIDE THE UNITED
STATES IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH RULE 904 UNDER THE
SECURITIES ACT, (iii) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE
SECURITIES ACT PROVIDED BY RULE 144 THEREUNDER (IF AVAILABLE) OR (iv) PURSUANT
TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT, IN EACH OF
CASES (i) THROUGH (iv) IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY
STATE OF THE UNITED STATES, AND (B) THE BENEFICIAL OWNER WILL, AND EACH
SUBSEQUENT BENEFICIAL OWNER OF THIS SECURITY OR ANY SHARES OF COMMON STOCK
ISSUABLE UPON CONVERSION THEREOF IS REQUIRED TO, 



                                      -13-
<PAGE>   19

NOTIFY ANY PURCHASER OF ANY BENEFICIAL INTEREST IN THE SECURITIES AND ANY SHARES
OF COMMON STOCK ISSUABLE UPON CONVERSION THEREOF FROM IT OF THE RESALE
RESTRICTIONS REFERRED TO IN (A) ABOVE.

        THIS SECURITY, ANY SHARES OF COMMON STOCK ISSUABLE UPON ITS CONVERSION
AND ANY RELATED DOCUMENTATION MAY BE AMENDED OR SUPPLEMENTED FROM TIME TO TIME
TO MODIFY THE RESTRICTIONS ON AND PROCEDURES FOR RESALES AND OTHER TRANSFERS OF
THIS SECURITY AND ANY SUCH SHARES TO REFLECT ANY CHANGE IN APPLICABLE LAW OR
REGULATION (OR THE INTERPRETATION THEREOF) OR IN PRACTICES RELATING TO THE
RESALE OR TRANSFER OF RESTRICTED SECURITIES GENERALLY. THE HOLDER AND BENEFICIAL
OWNERS OF AN INTEREST IN ANY OF THE SECURITIES EVIDENCED BY THIS GLOBAL SECURITY
AND ANY SUCH SHARES SHALL BE DEEMED BY THE ACCEPTANCE OF THIS GLOBAL SECURITY
AND THE BENEFICIAL INTERESTS THEREIN AND ANY SUCH SHARES TO HAVE AGREED TO ANY
SUCH AMENDMENT OR SUPPLEMENT.]

        [INCLUDE IF SECURITY IS A RESTRICTED GLOBAL SECURITY, REGISTRATION S
GLOBAL SECURITY OR UNRESTRICTED GLOBAL SECURITY:

        THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE
HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A
NOMINEE THEREOF. THIS SECURITY MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A
SECURITY REGISTERED, AND NO TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY BE
REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A NOMINEE
THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.

        UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), NEW YORK, NEW
YORK, TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR
PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR
IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC, AND
ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC, ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR
VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL BECAUSE THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

[INCLUDE IF SECURITY IS A DEFINITIVE SECURITY TO BE HELD BY AN INSTITUTIONAL
ACCREDITED INVESTOR:

        IN CONNECTION WITH ANY TRANSFER, THE HOLDER WILL DELIVER TO THE
REGISTRAR AND TRANSFER AGENT SUCH CERTIFICATES AND OTHER INFORMATION AS SUCH
TRANSFER AGENT MAY REASONABLY REQUIRE TO CONFIRM THAT THE TRANSFER COMPLIES WITH
THE FOREGOING RESTRICTIONS.

                                   ITRON, INC.

                 6 3/4% CONVERTIBLE SUBORDINATED NOTES DUE 2004

No. __________                                                     U.S.$ _______



[IF RESTRICTED GLOBAL SECURITY - CUSIP No.  465741 AE 6]



                                      -14-
<PAGE>   20

[IF ANY REGULATION S SECURITY - CUSIP No. U13126 AC 8]

[IF REGULATION S GLOBAL SECURITY - ISIN No. USU13126AC8]

[IF UNRESTRICTED SECURITY - CUSIP No. 465741 AD 8]

        Itron, Inc., a corporation duly organized and existing under the laws of
Washington (herein called the "Company," which term includes any successor
Person under the Indenture hereinafter referred to), for value received, hereby
promises to pay to __________, or registered assigns, the principal sum of
___________ United States Dollars (U.S.$ _______) which principal amount may
from time to time be increased or decreased to such other principal amounts
(which, taken together with the principal amounts of all other Outstanding
Securities, shall not exceed U.S.$15,834,000 in the aggregate at any time) by
adjustments made on the records of the Trustee hereinafter referred to in
accordance with the Indenture) on March 31, 2004, and to pay interest thereon
from March 12, 1999, or from the most recent Interest Payment Date to which
interest has been paid or duly provided for, semi-annually on March 31 and
September 30 in each year, commencing September 30, 1999, at the rate of 6 3/4%
per annum, until the principal hereof is paid or made available for payment. The
interest so payable, and punctually paid or duly provided for, on any Interest
Payment Date will, as provided in such Indenture, be paid to the Person in whose
name this Security (or one or more Predecessor Securities) is registered at the
close of business on the Regular Record Date for such interest, which shall be
the March 15 or September 15 (whether or not a Business Day), as the case may
be, next preceding such Interest Payment Date. Any such interest not so
punctually paid or duly provided for will forthwith cease to be payable to the
Holder on such Regular Record Date and may either be paid to the Person in whose
name this Security (or one or more Predecessor Securities) is registered at the
close of business on a Special Record Date for the payment of such Defaulted
Interest to be fixed by the Trustee, notice whereof shall be given to Holders of
Securities not less than 10 days prior to such Special Record Date, or be paid
at any time in any other lawful manner not inconsistent with the requirements of
any securities exchange on which the Securities may be listed, and upon such
notice as may be required by such exchange, all as more fully provided in said
Indenture.

        Payment of the principal of, premium, if any, and interest on this
Security will be made at the Corporate Trust Office, in such coin or currency of
the United States of America as at the time of payment is legal tender for
payment of public and private debts by a Dollar check drawn on an account
maintained with a bank in the Borough of Manhattan, The City of New York or San
Francisco, California; provided, however, that upon written application by the
Holder to the Security Registrar setting forth wire instructions not later than
15 days prior to the relevant payment date (in the case of payment of principal)
or not later than the relevant record date (in the case of payment of interest),
such Holder may receive payment by wire transfer of Dollars to a Dollar account
(such transfers to be made only to Holders of an aggregate principal amount in
excess of U.S.$2,000,000) maintained by the payee with a bank in the United
States or in Europe and designated by the payee to the Security Registrar.

        Reference is hereby made to the further provisions of this Security set
forth on the reverse hereof, which further provisions shall for all purposes
have the same effect as if set forth at this place.

        Unless the certificate of authentication hereon has been executed by the
Trustee referred to on the reverse hereof by manual signature, this Security
shall not be entitled to any benefit under the Indenture or be valid or
obligatory for any purpose.

        IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed under its corporate seal.

Dated:  ____________________

                                            ITRON, INC.,



                                      -15-
<PAGE>   21


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



Attest:

- ---------------------------------
Name:
Title:

SECTION 2.03. FORM OF REVERSE OF SECURITY.

        This Security is one of a duly authorized issue of Securities of the
Company designated as its 6 3/4% Convertible Subordinated Notes Due 2004 (herein
called the "Securities"), limited in aggregate principal amount to
U.S.$15,834,000, issued and to be issued under an Indenture, dated as of March
12, 1999 (herein called the "Indenture"), between the Company and Chase
Manhattan Bank and Trust Company, National Association, as Trustee for the
Holders of Securities issued under said Indenture (herein called the "Trustee,"
which term includes any successor trustee under the Indenture), to which
Indenture and all indentures supplemental thereto reference is hereby made for a
statement of the respective rights, limitations of rights, duties and immunities
thereunder of the Company, the Trustee, the holders of Senior Indebtedness and
the Holders of the Securities and of the terms upon which the Securities are,
and are to be, authenticated and delivered.

        Subject to and upon compliance with the provisions of the Indenture, the
Holder of this Security is entitled, at his option, at any time on or before the
close of business on the Business Day immediately preceding March 31, 2004, or
in case this Security or a portion hereof is called for redemption, then in
respect of this Security or such portion hereof until and including, but (unless
the Company defaults in making the payment due upon redemption or repurchase)
not after, the close of business on the Business Day immediately preceding the
Redemption Date or Repurchase Date, as the case may be, to convert this Security
(or any portion of the principal amount hereof which is U.S.$1,000 or an
integral multiple thereof), at the principal amount hereof, or of such portion,
into fully paid and non-assessable shares of Common Stock of the Company at a
conversion price equal to U.S.$9.65 aggregate principal amount of Securities for
each share of Common Stock (or at the current adjusted conversion price if an
adjustment has been made as provided in Article XIII of the Indenture) by
surrender of this Security, duly endorsed or assigned to the Company or in
blank, to the Company at its office or agency in the Borough of Manhattan, The
City of New York or San Francisco, California accompanied by the conversion
notice hereon executed by the Holder hereof evidencing such Holder's election to
convert this Security, or if less than the entire principal amount hereof is to
be converted, the portion hereof to be converted, and, in case such surrender
shall be made during the period from the close of business on any Regular Record
Date to the opening of business on the corresponding Interest Payment Date
(unless this Security or the portion hereof being converted has been called for
redemption on a Redemption Date within such period between and including such
Regular Record Date and such Interest Payment Date), also accompanied by payment
in funds acceptable to the Company of an amount equal to the interest payable on
such Interest Payment Date on the principal amount of this Security then being
converted. Subject to the aforesaid requirement for payment of interest and, in
the case of a conversion after the close of business on any Regular Record Date
and on or before the corresponding Interest Payment Date, to the right of the
Holder of this Security (or any Predecessor Security) of record at such Regular
Record Date to receive an installment of interest (even if the Security has been
called for redemption on a Redemption Date within such period), no payment or
adjustment is to be made on conversion for interest accrued hereon or for
dividends on the Common Stock issued on conversion. No fractions of shares or
scrip representing fractions of shares will be issued on conversion, but instead
of any fractional interest the Company shall pay a cash adjustment or round up
to the next higher whole share as provided in Article XIII of the Indenture. The
conversion price is subject to adjustment as provided in Article XIII of the
Indenture. In addition, the 



                                      -16-
<PAGE>   22

Indenture provides that in case of certain reclassifications, consolidations,
mergers, sales or transfers of assets or other transactions pursuant to which
the Common Stock is converted into the right to receive other securities, cash
or other property, the Indenture shall be amended, without the consent of any
Holders of Securities, so that this Security, if then outstanding, will be
convertible thereafter, during the period this Security shall be convertible as
specified above, only into the kind and amount of securities, cash and other
property receivable upon the transaction by a holder of the number of shares of
Common Stock into which this Security might have been converted immediately
prior to such transaction (assuming such holder of Common Stock failed to
exercise any rights of election and received per share the kind and amount
received per share by a plurality of non-electing shares).

        The Company will furnish to any Holder, upon request and without charge,
copies of the Certificate of Incorporation and By-laws of the Company then in
effect. Any such request may be addressed to the Company or to the Security
Registrar.

        The Securities are subject to redemption upon not less than 20 days or
more than 60 days notice by mail, at any time on or after March 12, 2002, as a
whole or in part, at the election of the Company, at a Redemption Price equal to
100% of the principal amount thereof, together with accrued interest to (but not
including) the Redemption Date, but interest installments whose Stated Maturity
is on or prior to such Redemption Date will be payable to the Holders of such
Securities, or one or more Predecessor Securities, of record at the close of
business on the relevant record dates referred to on the face hereof, all as
provided in the Indenture.

        In certain circumstances involving a Change in Control, each Holder
shall have the right to require the Company to redeem all or part of its
Securities at a repurchase price equal to 100% of the principal amount thereof,
together with accrued and unpaid interest through the Repurchase Date.

        The Securities do not have the benefit of any sinking fund.

        In the event of redemption, conversion or repurchase of this Security in
part only, a new Security or Securities for the unredeemed, unconverted or
unrepurchased portion hereof will be issued in the name of the Holder hereof
upon the cancellation hereof.

        The indebtedness evidenced by this Security is, to the extent provided
in the Indenture, subordinate and subject in right of payment to the prior
payment in full of all Senior Indebtedness, and this Security is issued subject
to the provisions of the Indenture with respect thereto. Each Holder of this
Security, by accepting the same, (a) agrees to and shall be bound by such
provisions, (b) authorizes and directs the Trustee on his behalf to take such
action as may be necessary or appropriate to effectuate the subordination so
provided, and (c) appoints the Trustee his attorney-in-fact for any and all such
purposes.

        If an Event of Default shall occur and be continuing, the principal of
all the Securities may be declared due and payable in the manner and with the
effect provided in Article V of the Indenture.

        The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Securities under the Indenture at
any time by the Company and the Trustee with the consent of the Holders of a
majority in aggregate principal amount of the Securities at the time
Outstanding. The Indenture also contains provisions permitting the Holders of a
majority in aggregate principal amount of the Securities at the time
Outstanding, on behalf of the Holders of all the Securities, to waive compliance
by the Company with certain provisions of the Indenture and certain past
defaults under the Indenture and their consequences. Any such consent or waiver
by the Holder of this Security shall be conclusive and binding upon such Holder
and upon all future Holders of this Security and of any Security issued upon the
registration of transfer hereof or in exchange herefor or in lieu hereof,
whether or not notation of such consent or waiver is made upon this Security.



                                      -17-
<PAGE>   23

        No reference herein to the Indenture and no provision of this Security
or of the Indenture shall alter or impair the obligation of the Company, which
is absolute and unconditional, to pay the principal of, premium, if any, and
interest on this Security at the times, place and rate, and in the coin or
currency, herein prescribed or to convert this Security as provided in the
Indenture.

        As provided in the Indenture and subject to certain limitations therein
set forth, the transfer of this Security is registrable in the Security
Register, upon surrender of this Security for registration of transfer at the
Corporate Trust Office duly endorsed by, or accompanied by a written instrument
of transfer in form satisfactory to the Company and the Security Registrar duly
executed by, the Holder hereof or his attorney duly authorized in writing, and
thereupon one or more new Securities, of authorized denominations and for the
same aggregate principal amount, will be issued to the designated transferee or
transferees.

        The Securities are issuable only in registered form without coupons in
denominations of U.S.$1,000 and any integral multiple thereof. As provided in
the Indenture and subject to certain limitations therein set forth, Securities
are exchangeable for a like aggregate principal amount of Securities of a
different authorized denomination, as requested by the Holder surrendering the
same.

        No service charge shall be made for any such registration of transfer or
exchange, but the Company may require payment of a sum sufficient to cover any
tax or other governmental charge payable in connection therewith.

        Prior to due presentment of this Security for registration of transfer,
the Company, the Trustee and any agent of the Company or the Trustee may treat
the Person in whose name this Security is registered as the owner hereof for all
purposes, whether or not payment of or on this Security is overdue, and neither
the Company, the Trustee nor any such agent shall be affected by notice to the
contrary.

        Interest on this Security shall be computed on the basis of a 360-day
year of twelve 30-day months.

        All terms used in this Security which are defined in the Indenture shall
have the meanings assigned to them in the Indenture.

        THE INDENTURE AND THIS SECURITY SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

SECTION 2.04. FORM OF TRUSTEE'S CERTIFICATE OF AUTHENTICATION.

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

Dated:  __________

                                            CHASE MANHATTAN BANK AND TRUST
                                            COMPANY, NATIONAL ASSOCIATION, as
                                            Trustee



                                            By
                                               ---------------------------------
                                               Authorized Signatory

SECTION 2.05. FORM OF CONVERSION NOTICE.

                                CONVERSION NOTICE

To:     Itron, Inc.                                           CUSIP NO._________



                                      -18-
<PAGE>   24

        The undersigned Holder of this Security hereby irrevocably exercises the
option to convert this Security, or the portion hereof (which is U.S.$1,000 or
an integral multiple thereof) below designated into shares of Common Stock in
accordance with the terms of the Indenture referred to in this Security, and
directs that the shares issuable and deliverable upon conversion, together with
any check in payment for a fractional share and any Security representing any
unconverted principal amount hereof, be issued and delivered to the registered
owner hereof unless a different name has been provided below. If shares or any
portion of this Security not converted are to be issued in the name of a person
other than the undersigned, the undersigned will pay all transfer taxes payable
with respect thereto and is delivering herewith a certificate in proper form
certifying that the applicable restrictions on transfer have been complied with.
Any amount required to be paid by the undersigned on account of interest
accompanies this Security.

        The Applicant hereby agrees that, promptly after request of the Company,
he or it will furnish such proof in support of this certification as the Company
or the Security Registrar for the Common Stock may, from time to time, request.

Dated:  __________

                                      ________________________________________
                                      Signature*


  IF SHARES OR SECURITIES ARE TO BE
 REGISTERED IN THE NAME OF A PERSON
 OTHER THAN THE HOLDER, PLEASE PRINT           PRINCIPAL AMOUNT TO BE CONVERTED
  SUCH PERSON'S NAME AND ADDRESS:*                   (IF LESS THAN ALL):
                                                         $_______,000


- ----------------------------------             ---------------------------------
Name                                           Social Security or Taxpayer
                                               Identification Number

- ----------------------------------
Street Address

- ----------------------------------
City, State and Zip Code

* Signature(s) must be guaranteed by an eligible guarantor institution (banks,
stock brokers, savings and loan associations and credit unions with membership
in an approved signature guarantee medallion program) pursuant to Securities and
Exchange Commission Rule 17Ad-15 if shares of Common Stock are to be delivered,
or unconverted Securities are to be issued, other than to and in the name of the
registered owner.

SECTION 2.06. FORM OF CERTIFICATION.

        Whenever any certification is required to be given to evidence
compliance with certain restrictions relating to transfers of Restricted
Securities contemplated by Section 3.05(b)(vi), Section 3.05(c) or Section
13.02, such certification shall be provided substantially in the form of the
following certificate, with only such changes as shall be approved by the
Company.

                              TRANSFER CERTIFICATE

        The undersigned Holder hereby certifies with respect to U.S.$________
principal amount of the above-captioned securities presented or surrendered on
the date hereof (the "Surrendered Securities") for registration of transfer, or
for exchange or conversion where the securities issuable upon such exchange or
conversion are to be registered in a name other than that of the undersigned
Holder (each such transaction being a "transfer"), that such 



                                      -19-
<PAGE>   25

transfer complies with the restrictive legend set forth on the face of the
Surrendered Securities for the reason checked below:

___________     The transfer of the Surrendered Securities complies with Rule
                144 under the U.S. Securities Act of 1933, as amended (the
                "Securities Act"); or

___________     The transfer of the Surrendered Securities complies with Rule
                144A under the Securities Act; or

___________     The transfer of the Surrendered Securities complies with Rule
                904 of Regulation S under the Securities Act; or

___________     The transfer of the Surrendered Securities is to an
                institutional "accredited investor" within the meaning of Rule
                501(a)(1), (2) (3) or (7) under the Securities Act in a
                transaction exempt from the registration requirements of the
                Securities Act; or

___________     The transfer of the Surrendered Securities is pursuant to an
                effective registration statement under the Securities Act, the
                prospectus delivery requirements under the Securities Act have
                been satisfied with respect to such transfer, the undersigned
                Holder is named as a "Selling Securityholder" in the prospectus
                relating to such registration statement, or in amendments or
                supplements thereto, and the aggregate principal amount of
                Surrendered Securities transferred are all or a portion of the
                securities listed in such prospectus opposite the undersigned's
                name.

Dated:  __________________________*

*     To be dated the date of surrender.




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

                                      (If the registered owner is a corporation,
                                      partnership or fiduciary, the title of the
                                      Person signing on behalf of such
                                      registered owner must be stated.)

SECTION 2.07. FORM OF TRANSFER CERTIFICATE.

        (a) Whenever any certification is to be given by a beneficial owner of a
portion of the Restricted Global Security pursuant to Section 3.05(b)(ii) in
connection with the transfer of a beneficial interest in the Restricted Global
Security to a Person who wishes to take delivery thereof in the form of a
beneficial interest in the Regulation S Global Security, such certification
shall be provided substantially in the form of the following certificate, with
only such changes as shall be approved by the Company.

                          FORM OF TRANSFER CERTIFICATE*
 FOR TRANSFER FROM RESTRICTED GLOBAL SECURITY TO REGULATION S GLOBAL SECURITY 
          (TRANSFERS PURSUANT TO SECTION 3.05(B)(II) OF THE INDENTURE)

Chase Manhattan Bank and Trust Company, National Association, as Trustee
101 California Street, Suite 2725
San Francisco, California 94111
Attention:  Corporate Trust Department



                                      -20-
<PAGE>   26

        Re:    Itron, Inc.
               6 3/4% Convertible Subordinated Notes Due 2004 (the "Securities")

        Reference is hereby made to the Indenture, dated as of March 12, 1999
(the "Indenture"), between Itron, Inc., as Issuer, and Chase Manhattan Bank and
Trust Company, National Association, as Trustee. Capitalized terms used but not
defined herein shall have the meanings given to them in the Indenture or in
Regulation S or Rule 144 under the U.S. Securities Act of 1933, as amended (the
"Securities Act").

        This certificate relates to U.S.$______________ principal amount of
Securities (the "Specified Securities") which are evidenced by the Restricted
Global Security (CUSIP No. ______). The person in whose name this certificate is
executed below (the "Undersigned") hereby certifies that either (i) it is the
sole beneficial owner of the Specified Securities or (ii) it is acting on behalf
of all the beneficial owners of the Specified Securities and is duly authorized
by them to do so. Such beneficial owner or owners are referred to herein
collectively as the "Owner." The Specified Securities are held with DTC in the
name of the undersigned, as or on behalf of the Owner. The Owner has requested a
transfer of the Specified Securities to a Person who will take delivery thereof
in the form of an equal principal amount of Securities evidenced by the
Regulation S Global Security (CUSIP No. ______), which amount, immediately after
such transfer, is to be held with DTC through Euroclear or CEDEL or both.

        In connection with such request and in respect of such Specified
Securities, the Owner does hereby certify that such transfer has been effected
pursuant to and in accordance with Rule 904 under the Securities Act and,
accordingly, the Owner does hereby further certify that:

                (1) the Owner is not a distributor of the Securities, an
affiliate of the Company or any such distributor or a person acting on behalf of
any of the foregoing;

                (2) the offer of the Securities was not made to a person in the
United States;

                (3) either:

                        (A) at the time the buy order was originated, the
transferee was outside the United States or the Owner and any person acting on
its behalf reasonably believed that the transferee was outside the United
States, or

                        (B) the transaction was executed in, on or through the
facilities of a designated offshore securities market and neither the Owner nor
any person acting on its behalf knows that the transaction was pre-arranged with
a buyer in the United States;

                (4) no directed selling efforts have been made in contravention
of the requirements of Rule 904(b) of Regulation S, as applicable;

                (5) if the Owner is a dealer in securities or has received a
selling concession, fee or other remuneration in respect of the Securities,

                        (A) neither the Owner nor any person acting on his
behalf knows that the offeree or buyer of the securities is a U.S. person; and

                        (B) if the Owner or any person acting on the Owner's
behalf knows that the purchaser is a dealer, as defined in Section 2(12) of the
Securities Act, or is a person receiving a selling concession, fee or other
remuneration in respect of the securities sold, the Owner or a person acting on
the Owner's behalf sends to the purchaser a confirmation or other notice stating
that the securities may be offered and sold during the restricted period only:
in accordance with the provisions of Regulation S under the Securities Act;
pursuant to registration of 



                                      -21-
<PAGE>   27

the securities under the Securities Act; or pursuant to an available exemption
from the registration requirements of the Securities Act.

                (6) the transaction is not part of a plan or scheme to evade the
registration requirements of the Securities Act.

        This certificate and the statements contained herein are made for the
benefit of the Company.

Dated:  __________

                                      [Insert Name of the Undersigned],



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

                                            (If the Undersigned is a
                                            corporation, partnership or 
                                            fiduciary, the title of the Person 
                                            signing on behalf of the Undersigned
                                            must be stated.)

cc:  Itron, Inc.

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

* If the Security is a Definitive Security, appropriate changes need to be made
  to this form of transfer certificate.

        (b) Whenever any certification is to be given by a beneficial owner of a
portion of the Restricted Global Security pursuant to Section 3.05(b)(iii) in
connection with the transfer of a beneficial interest in the Regulation S Global
Security to a Person who wishes to take delivery thereof in the form of a
beneficial interest in the Restricted Global Security, such certification shall
be provided substantially in the form of the following certificate, with only
such changes as may be approved by the Company.

                          FORM OF TRANSFER CERTIFICATE*
                         FOR TRANSFER FROM REGULATION S
                  GLOBAL SECURITY TO RESTRICTED GLOBAL SECURITY
          (TRANSFERS PURSUANT TO SECTION 3.05(B)(III) OF THE INDENTURE)

Chase Manhattan Bank and Trust Company, National Association, as Trustee
101 California Street, Suite 2725
San Francisco, California 94111
Attention:  Corporate Trust Department

        Re:    Itron, Inc.
               6 3/4% Convertible Subordinated Notes Due 2004 (the "Securities")

        Reference is hereby made to the Indenture, dated as of March 12, 1999
(the "Indenture"), between Itron, Inc., as Issuer, and Chase Manhattan Bank and
Trust Company, National Association, as Trustee. Capitalized terms used but not
defined herein shall have the meanings given to them in the Indenture or in
Regulation S, Rule 144 or Rule 144A under the U.S. Securities Act of 1933, as
amended (the "Securities Act").

        This letter relates to U.S. $______________ principal amount of
Securities (the "Specified Securities") which are evidenced by the Regulation S
Global Security (CUSIP No. ______). The person in whose name this 



                                      -22-
<PAGE>   28

certificate is executed below (the "Undersigned") hereby certifies that either
(i) it is the sole beneficial owner of the Specified Securities or (ii) it is
acting on behalf of all the beneficial owners of the Specified Securities and is
duly authorized by them to do so. Such beneficial owner or owners are referred
to herein collectively as the "Owner." The Specified Securities are held with
DTC through Euroclear or CEDEL or both in the name of the undersigned, as or on
behalf of the Owner. The Owner has requested a transfer of such beneficial
interest in the Securities to a Person (the "Transferee") that will take
delivery thereof in the form of an equal principal amount of Securities
evidenced by the Restricted Global Security (CUSIP No. ______)

        In connection with such request and in respect of such Securities, the
Owner does hereby certify that such transfer has been effected pursuant to and
in accordance with Rule 144A under the Securities Act and any applicable
securities laws of any state of the United States and, accordingly, the Owner
does hereby further certify that:

                (1) the Securities are being transferred to a Person that the
Owner reasonably believes is purchasing the Securities for its own account, or
for one or more accounts with respect to which such Person exercises sole
investment discretion, and such Person and each such account is a "qualified
institutional buyer" within the meaning of Rule 144A; and

                (2) the Owner and any person acting on its behalf have taken
reasonable steps to ensure that the Transferee is aware that the Owner may be
relying on Rule 144A in connection with the transfer.

This certificate and the statements contained herein are made for the benefit of
the Company.

Dated:  __________

                                            [Insert Name of the Undersigned],

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

                                            (If the Undersigned is a
                                            corporation, partnership or 
                                            fiduciary, the title of the Person 
                                            signing on behalf of the Undersigned
                                            must be stated.)

cc:  Itron, Inc.

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

* If the Security is a Definitive Security, appropriate changes need to be made
to this form of transfer certificate.

                           ARTICLE III. THE SECURITIES

SECTION 3.01.         TITLE AND TERMS; ISSUABLE IN SERIES.

        The aggregate principal amount of Securities which may be authenticated
and delivered under this Indenture is limited to U.S.$15,834,000, except for
Securities authenticated and delivered upon registration of transfer of, or in
exchange for, or in lieu of, other Securities of the series pursuant to Section
3.04, 3.05, 3.06, 9.06, 11.08, 13.02 or 14.05 and except for Securities which,
pursuant to Section 3.03, are deemed never to have been authenticated and
delivered hereunder.

        The Stated Maturity of the Securities shall be March 31, 2004, and they
shall bear interest at the rate of 6 3/4% per annum, payable semi-annually on
March 31 and September 30, commencing September 30, 1999, until the principal
thereof is paid or made available for payment.



                                      -23-
<PAGE>   29

        Payment of the principal of, premium, if any, and interest on this
Security will be made at the Corporate Trust Office, in such coin or currency of
the United States as at the time of payment is legal tender for payment of
public and private debts by a Dollar check drawn on an account maintained with a
bank in the Borough of Manhattan, The City of New York or San Francisco,
California; provided, however, that upon written application by the Holder to
the Security Registrar setting forth wire instructions not later than 15 days
prior to the relevant payment date (in the case of payment of principal) or not
later than the relevant record date (in the case of payment of interest), such
Holder may receive payment by wire transfer of Dollars to a Dollar account (such
transfers to be made only to Holders of an aggregate principal amount in excess
of U.S.$2,000,000) maintained by the payee with a bank in the United States or
in Europe and designated by the payee to the Security Registrar.

        The Securities shall be redeemable by the Company as provided in Article
XI.

        The Securities shall be subordinated in right of payment to the prior
payment in full of Senior Indebtedness as provided in Article XII.

        The Securities shall be convertible as provided in Article XIII.

        The Securities shall be subject to purchase by the Company at the option
of the Holder as provided in Article XIV.

SECTION 3.02. DENOMINATIONS.

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

SECTION 3.03. EXECUTION, AUTHENTICATION, DELIVERY AND DATING.

        The Securities shall be executed on behalf of the Company by any of its
Chairman of the Board, its Vice Chairman of the Board, its President or one of
its Vice Presidents, under its corporate seal reproduced thereon and attested by
its Secretary or one of its Assistant Secretaries. The signature of any of these
officers on the Securities may be manual or facsimile.

        Securities 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 Securities or did not
hold such offices at the date of such Securities.

        At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities of any series executed by the
Company to the Trustee for authentication, together with a Company Order for the
authentication and delivery of such Securities; and the Trustee in accordance
with such Company Order shall authenticate and deliver such Securities as in
this Indenture provided and not otherwise.

        Each Security shall be dated the date of its authentication.

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



                                      -24-
<PAGE>   30

SECTION 3.04. GLOBAL SECURITIES.

                (i) Each Global Security authenticated under this Indenture
shall be registered in the name of the Depositary designated by the Company for
such Global Security or a nominee thereof and delivered to such Depositary or a
nominee thereof or custodian therefor, and each such Global Security shall
constitute a single Security for all purposes of this Indenture.

                (ii) Notwithstanding any other provision in this Indenture, no
Global Security may be exchanged in whole or in part for Securities registered,
and no transfer of a Global Security in whole or in part may be registered, in
the name of any Person other than the Depositary for such Global Security or a
nominee thereof unless (A) such Depositary (1) has notified the Company that it
is unwilling or unable to continue as Depositary for such Global Security or (2)
has ceased to be a clearing agency registered as such under the Exchange Act or
announces an intention permanently to cease business or does in fact do so, (B)
there shall have occurred and be continuing an Event of Default with respect to
such Global Security, or (C) a request for certificates has been made upon 60
days' prior written notice given to the Trustee in accordance with the
Depositary's customary procedures and a copy of such notice has been received by
the Company from the Trustee. Any Global Security exchanged pursuant to clause
(i) above shall be so exchanged in whole and not in part and any Global Security
exchanged pursuant to clause (ii) or (iii) above may be exchanged in whole or
from time to time in part as directed by the Depositary. Any Security issued in
exchange for a Global Security or any portion thereof shall be a Global
Security; provided that any such Security so issued that is registered in the
name of a Person other than the Depositary or a nominee thereof shall not be a
Global Security.

                (iii) If any Global Security is to be exchanged for other
Securities or canceled in whole, it shall be surrendered by or on behalf of the
Depositary or its nominee to the Trustee, as Security Registrar, for exchange or
cancellation as provided in this Article III. If any Global Security is to be
exchanged for other Securities or canceled in part, or if another Security is to
be exchanged in whole or in part for a beneficial interest in any Global
Security, in each case, as provided in Section 3.05, then either (i) such Global
Security shall be so surrendered for exchange or cancellation as provided in
this Article III or (ii) the principal amount thereof shall be reduced or
increased by an amount equal to the portion thereof to be so exchanged or
cancelled, or equal to the principal amount of such other Security to be so
exchanged for a beneficial interest therein, as the case may be, by means of an
appropriate adjustment made on the records of the Trustee, as Security
Registrar, whereupon the Trustee, in accordance with the Applicable Procedures,
shall instruct the Depositary or its authorized representative to make a
corresponding adjustment to its records. Upon any such surrender or adjustment
of a Global Security, the Trustee shall, except as otherwise provided in this
Article III, authenticate and deliver any Securities issuable in exchange for
such Global Security (or any portion thereof) to or upon the order of, and
registered in such names as may be directed by, the Depositary or its authorized
representative. Upon the request of the Trustee in connection with the
occurrence of any of the events specified in the preceding paragraph, the
Company shall promptly make available to the Trustee a reasonable supply of
Securities that are not in the form of Global Securities. The Trustee shall be
entitled to rely upon any order, direction or request of the Depositary or its
authorized representative which is given or made pursuant to this Article III if
such order, direction or request is given or made in accordance with the
Applicable Procedures.

                (iv) Every Security authenticated and delivered upon
registration of transfer of, or in exchange for or in lieu of, a Global Security
or any portion thereof, whether pursuant to this Article III or otherwise, shall
be authenticated and delivered in the form of, and shall be, a Global Security,
unless such Security is registered in the name of a Person other than the
Depositary for such Global Security or a nominee thereof, in which case such
Security shall be authenticated and delivered in definitive, fully registered
form, without interest coupons.

                (v) The Depositary or its nominee, as registered owner of a
Global Security, shall be the Holder of such Global Security for all purposes
under the Indenture and the Securities, and owners of beneficial interests in a
Global Security shall hold such interests pursuant to the Applicable Procedures.
Accordingly, any such owner's 



                                      -25-
<PAGE>   31

beneficial interest in a Global Security will be shown only on, and the transfer
of such interest shall be effected only through, records maintained by the
Depositary or its nominee or its Agent Members and such owners of beneficial
interests in a Global Security will not be considered the owners or holders
thereof. Notwithstanding the foregoing, nothing herein shall prevent the
Company, the Trustee or any agent of the Company or the Trustee from giving
effect to any written certification, proxy or other authorization furnished by
the Depositary or such nominee, as the case may be, or impair, as between the
Depositary, its Agent Members and any other person on whose behalf an Agent
Member may act, the operation of customary practices of such Persons governing
the exercise of the rights of a holder of any Security.

SECTION 3.05. REGISTRATION; REGISTRATION OF TRANSFER AND EXCHANGE.

                (a) The Company shall cause to be kept at the Corporate Trust
Office of the Trustee a register (the register maintained in such office and in
any other office or agency designated pursuant to Section 10.02 being herein
sometimes collectively referred to as the "Security Register") in which, subject
to such reasonable regulations as it may prescribe, the Company shall provide
for the registration of Securities and of transfers and exchanges thereof. The
Trustee is hereby appointed "Security Registrar" for the purpose of registering
Securities and transfers and exchanges thereof as herein provided. Upon
surrender for registration of transfer or exchange of any Security at an office
or agency of the Company designated pursuant to Section 10.02 for such purpose,
accompanied by a written instrument of transfer or exchange in the form provided
by the Company, the Company shall execute, and the Trustee shall authenticate
and deliver, in the name of the designated transferee or transferees, one or
more new Securities of the same series, of any authorized denominations and of a
like aggregate principal amount.

                (b) Notwithstanding any other provisions of this Indenture or
the Securities, transfers and exchanges of Securities and beneficial interests
in a Global Security of the kinds specified in this Section 3.05(b) shall be
made only in accordance with this Section 3.05(b).

                        (i) Transfer of Global Security. Other than as set forth
in Section 3.04(a), a Global Security may not be transferred, in whole or in
part, to any Person other than the Depositary or a nominee thereof, and no such
transfer to any such other Person may be registered; provided that this Section
3.05(b)(i) shall not prohibit any transfer of a Security that is issued in
exchange for a Global Security but is not itself a Global Security. No transfer
of a Security to any Person shall be effective under this Indenture or the
Securities unless and until such Security has been registered in the name of
such Person. Nothing in this Section 3.05(b)(i) shall prohibit or render
ineffective any transfer of a beneficial interest in a Global Security effected
in accordance with the other provisions of this Section 3.05(b).

                        (ii) Restricted Global Security to Regulation S Global
Security. If the holder of a beneficial interest in the Restricted Global
Security wishes at any time to transfer such interest to a Person who wishes to
take delivery thereof in the form of a beneficial interest in the Regulation S
Global Security, such transfer may be effected only in accordance with the
provisions of this Section 3.05(b)(ii) and Section 3.05(b)(v) and subject to the
Applicable Procedures. Upon receipt by the Trustee, as Security Registrar, at
its Corporate Trust Office of (1) written instructions given in accordance with
the Applicable Procedures from an Agent Member directing the Trustee to credit
or cause to be credited to a specified Agent Member's account a beneficial
interest in the Regulation S Global Security in a principal amount equal to that
of the beneficial interest in the Restricted Global Security to be so
transferred, (2) a written order given in accordance with the Applicable
Procedures containing information regarding the account of the Agent Member (and
the Euroclear or CEDEL account, as the case may be) to be credited with, and the
account of the Agent Member to be debited for, such beneficial interest and (3)
a certificate in substantially the form set forth in Section 2.07(a),
satisfactory to the Trustee and duly executed by the owner of such beneficial
interest or his attorney duly authorized in writing, the Trustee, as Security
Registrar but subject to Section 3.05(b)(v), shall instruct DTC to reduce the
principal amount of the Restricted Global Security, and to increase the
principal amount of the Regulation S Global Security, by the principal amount of
the beneficial interest in the Restricted Global Security to be so transferred,
and to credit or cause to be credited to the account of the 



                                      -26-
<PAGE>   32

Person specified in such instructions (which shall be the Agent Member for
Euroclear or CEDEL or both, as the case may be) a beneficial interest in the
Regulations S Global Security having a principal amount equal to the amount by
which the principal amount of the Restricted Global Security was reduced upon
such transfer.

                        (iii) Regulation S Global Security to Restricted Global
Security. If the holder of a beneficial interest in the Regulation S Global
Security wishes at any time to transfer such interest to a Person who wishes to
take delivery thereof in the form of a beneficial interest in the Restricted
Global Security, such transfer may be effected only in accordance with this
Section 3.05(b)(iii) and subject to the Applicable Procedures. Upon receipt by
the Trustee, as Security Registrar, at its Corporate Trust Office of (1) written
instructions given in accordance with the Applicable Procedures from an Agent
Member directing the Trustee to credit or cause to be credited to a specified
Agent Member's account a beneficial interest in the Restricted Global Security
in a principal amount equal to that of the beneficial interest in the Regulation
S Global Security to be so transferred, (2) a written order given in accordance
with the Applicable Procedures containing information regarding the account of
the Agent Member to be credited with, and the account of the Agent Member (and
the Euroclear or CEDEL account, as the case may be) to be debited for, such
beneficial interest, and (3) if such transfer is to occur during the Restricted
Period, a certificate in substantially the form set forth in Section 2.07(b),
satisfactory to the Trustee and duly executed by the owner of such beneficial
interest or his attorney duly authorized in writing, the Trustee, as Security
Registrar, shall instruct DTC to reduce the principal amount of the Regulation S
Global Security, and to increase the principal amount of the Restricted Global
Security, by the principal amount of the beneficial interest in the Regulation S
Global Security to be so transferred, and to credit or cause to be credited to
the account of the Person specified in such instructions a beneficial interest
in the Restricted Global Security having a principal amount equal to the amount
by which the principal amount of the Regulation S Global Security was reduced
upon such transfer.

                        (iv) Other Exchanges. In the event that a Global
Security or any portion thereof is exchanged for Securities other than Global
Securities, such other Securities may in turn be exchanged (on transfer or
otherwise) for Securities that are not Global Securities or for beneficial
interests in a Global Security (if any is then outstanding) only in accordance
with such procedures, which shall be substantially consistent with the
provisions of Section 3.05(b)(i) through (iii) and Section 3.05(b)(v) (including
the certification requirements intended to insure that transfers of beneficial
interests in a Global Security comply with Rule 144A, Rule 144 or Regulation S
under the Securities Act, as the case may be) and any Applicable Procedures, as
may be from time to time adopted by the Company and the Trustee.

                        (v) Interests in Regulation S Global Security to be Held
Through Euroclear or CEDEL. Until the termination of the Restricted Period,
interests in the Regulation S Global Security may be held only through Agent
Members acting for and on behalf of Euroclear and CEDEL, and no person shall be
entitled to effect any transfer or exchange that would result in any such
interest being held otherwise than in or through such an account; provided that
this Section 3.05(b)(v) shall not prohibit any transfer in accordance with
Section 3.05(b)(iii) hereof.

                        (vi) Transfer and Exchange of Definitive Securities.
When Definitive Securities are presented to the Security Registrar with a
request:

                (A) to register the transfer of such Definitive Securities; or

                (B) to exchange such Definitive Securities for an equal
principal amount of Definitive Securities of other authorized denominations, the
Security Registrar shall register the transfer or make the exchange as requested
if its reasonable requirements for such transaction are met; provided, however,
that the Definitive Securities surrendered for transfer or exchange:

                        (x) shall be duly endorsed or accompanied by a written
instrument of transfer in form reasonably satisfactory to the Company and the
Security Registrar, duly executed by the Holder thereof or his attorney duly
authorized in writing; and



                                      -27-
<PAGE>   33

                        (y) are being transferred or exchanged pursuant to an
effective registration statement under the Securities Act, pursuant to Section
3.05(b)(vii), or pursuant to clause (1), (2) or (3) below, and are accompanied
by the following additional information and documents, as applicable:

                                (1) if such Definitive Securities are being
delivered to the Security Registrar by a Holder for registration in the name of
such Holder, without transfer, a certification from such Holder to that effect
(in the form set forth in Section 2.06); or

                                (2) if such Definitive Securities are being
transferred to the Company, a certification to that effect (in the form set
forth in Section 2.06); or

                                (3) if such Definitive Securities are being
transferred pursuant to an exemption from registration in accordance with Rule
144, (i) a certification to that effect (in the form set forth in Section 2.06)
and (ii) if the Company or Security Registrar so requests, an opinion of counsel
or other evidence reasonably satisfactory to them as to the compliance with the
restrictions set forth in the legend set forth in Section 2.02.

                        (vii) Restrictions on Transfer of a Definitive Security
for a Beneficial Interest in a Global Security. A Definitive Security may not be
exchanged for a beneficial interest in a Global Security except upon
satisfaction of the requirements set forth below. Upon receipt by the Trustee of
a Definitive Security, duly endorsed or accompanied by appropriate instruments
of transfer, in form satisfactory to the Trustee, together with:

                (A) certification (1) that such Definitive Security is being
transferred to a Qualified Institutional Buyer in accordance with Rule 144A, in
substantially the form set forth in Section 2.07(b), or (2) outside the United
States in an offshore transaction within the meaning of Regulation S and in
compliance with Rule 904 under the Securities Act, in substantially the form set
forth in Section 2.07(a); and

                (B) written instructions directing the Trustee to make, or to
direct the Securities Registrar to make, an adjustment on its books and records
with respect to such Global Security to reflect an increase in the aggregate
principal amount of the Securities represented by the Global Security, such
instructions to contain information regarding the Depositary account to be
credited with such increase,

then the Trustee shall cancel such Definitive Security and cause, or direct the
Securities Registrar to cause, in accordance with the standing instructions and
procedures existing between the Depository and the Securities Registrar, the
aggregate principal amount of Securities represented by the Global Security to
be increased by the aggregate principal amount of the Definitive Security to be
exchanged and shall credit or cause to be credited to the account of the Person
specified in such instructions a beneficial interest in the Global Security
equal to the principal amount of the Definitive Security so cancelled. If no
Global Securities are then outstanding, the Company shall issue and the Trustee
shall authenticate, upon written order of the Company in the form of an
Officers' Certificate, a new Global Security in the appropriate principal
amount.

        (c) Subject to the succeeding paragraph, every Security shall be subject
to the restrictions on transfer provided in the legends required by Section 2.02
to be applied to such Security. Whenever any Security is presented or
surrendered for registration of transfer or for exchange for a Security
registered in a name other than that of the Holder, such Security must be
accompanied by a certificate in substantially the form set forth in Section
2.06, dated the date of such surrender and signed by the Holder of such
Security, as to compliance with such restrictions on transfer. The Security
Registrar shall not be required to accept for such registration of transfer or
exchange any Security not so accompanied by a properly completed certificate.

        (d) The restrictions imposed by the legend set forth in the first or
fourth paragraph, as the case may be, of Section 2.02 upon the transferability
of any Security shall cease and terminate when such Security has been sold
pursuant to an effective registration statement under the Securities Act,
transferred in compliance with Rule 144 under the Securities Act (or any
successor provision thereto), or after the second anniversary of the original
issuance 


                                      -28-
<PAGE>   34

date of the Security, which second anniversary date is March 18, 1999
with respect to the Regulation S Global Security and which is April 15, 1999
with respect to the Restricted Global Security, (or such earlier date after
which the Security may be freely transferred without registration under the
Securities Act or without being subject to transfer restrictions pursuant to the
Securities Act, as may be provided in Rule 144(k) under the Securities Act (or
any successor provision thereto) or otherwise). Any Security as to which such
restrictions on transfer shall have expired in accordance with their terms or
shall have terminated may, upon surrender of such Security for exchange to the
Security Registrar in accordance with the provisions of this Section 3.05
(accompanied, in the event that such restrictions on transfer have terminated by
reason of a transfer in compliance with Rule 144 or any successor provision, by
an opinion of counsel having substantial experience in practice under the
Securities Act and otherwise reasonably acceptable to the Company, addressed to
the Company and in form acceptable to the Company, to the effect that the
transfer of such Security has been made in compliance with Rule 144 or such
successor provision), be exchanged for a new Security, of like tenor and
aggregate principal amount, which shall not bear the restrictive legend set
forth in the first paragraph of Section 2.02. The Company shall inform the
Trustee of the effective date of any registration statement registering the
Securities under the Securities Act. The Trustee shall not be liable for any
action taken or omitted to be taken by it in good faith in accordance with the
aforementioned opinion of counsel or notice of an effective registration
statement.

        (e) As used in the preceding two paragraphs of this Section 3.05, the
term "transfer" encompasses any sale, pledge, transfer, hypothecation or other
disposition of any Security.

        (f) No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any registration of transfer or exchange of Securities, other than
exchanges pursuant to Section 3.04, 9.06, 11.08, 13.02 or 14.05 not involving
any transfer.

        (g) The Company shall not be required (i) to issue, register the
transfer of or exchange any Security during a period beginning at the opening of
business 15 days before the day of the mailing of a notice of redemption of
Securities selected for redemption under Section 11.04 and ending at the close
of business on the day of such mailing, or (ii) to register the transfer of or
exchange any Security so selected for redemption in whole or in part, except the
unredeemed portion of any Security being redeemed in part.

SECTION 3.06. MUTILATED, DESTROYED, LOST AND STOLEN SECURITIES.

        If any mutilated Security is surrendered to the Trustee, the Company
shall execute and the Trustee shall authenticate and deliver in exchange
therefor a new Security of like tenor and principal amount and bearing a number
not contemporaneously outstanding.

        If there shall be delivered to the Company and the Trustee (i) evidence
to their satisfaction of the destruction, loss or theft of any Security and (ii)
such security or indemnity 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 Trustee that such Security has been acquired by a bona fide
purchaser, the Company shall execute and the Trustee shall authenticate and
deliver, in lieu of any such destroyed, lost or stolen Security, a new Security
of like tenor and principal amount and bearing a number not contemporaneously
outstanding.

        In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company in its discretion, but
subject to any conversion rights, may, instead of issuing a new Security, pay
such Security.

        Upon the issuance, authentication and delivery by the Trustee of any new
Security 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
Trustee) connected therewith.



                                      -29-
<PAGE>   35

        Every new Security issued, authenticated and delivered by the Trustee
pursuant to this Section in lieu of any destroyed, lost or stolen Security shall
constitute an original additional contractual obligation of the Company, whether
or not the destroyed, lost or stolen Security shall be at any time enforceable
by anyone, and shall be entitled to all the benefits of this Indenture equally
and proportionately with any and all other Securities 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 Securities.

SECTION 3.07. PAYMENT OF INTEREST; INTEREST RIGHTS PRESERVED.

        Interest on any Security which is payable, and is punctually paid or
duly provided for, on any Interest Payment Date shall be paid to the Person in
whose name that Security (or one or more Predecessor Securities) is registered
at the close of business on the Regular Record Date for payment of such
interest.

        If the Company shall be required by law to deduct any taxes from any sum
of interest payable hereunder to a Holder, (i) the Company shall make such
deductions and shall pay the full amount deducted to the relevant taxing
authority in accordance with applicable law and (ii) the amount of such
deduction shall be treated for purposes hereof as a payment of interest.

        Any interest on any Security which is payable, but is not punctually
paid or duly provided for, on any Interest Payment Date (herein called
"Defaulted Interest") shall forthwith cease to be payable to the Holder on the
relevant Regular Record Date by virtue of having been such Holder, and such
Defaulted Interest may be paid by the Company, at its election in each case, as
provided in clause (1) or (2) below:

                (1) The Company may elect to make payment of any Defaulted
Interest to the Persons in whose names the Securities (or their respective
Predecessor Securities) are registered at the close of business on a Special
Record Date for the payment of such Defaulted Interest, which shall be fixed in
the following manner. The Company shall notify the Trustee in writing of the
amount of Defaulted Interest proposed to be paid on each Security and the date
of the proposed payment, and at the same time the Company shall deposit with the
Trustee an amount of money equal to the aggregate amount proposed to be paid in
respect of such Defaulted Interest or shall make arrangements satisfactory to
the Trustee for such deposit prior to the date of the proposed payment, such
money when deposited to be held in trust for the benefit of the Persons entitled
to such Defaulted Interest as in this clause (1) provided. Thereupon, the
Trustee shall fix a Special Record Date for the payment of such Defaulted
Interest which shall be not more than 15 days and not less than 10 days prior to
the date of the proposed payment and not less than 10 days after the receipt by
the Trustee of the notice of the proposed payment. The Trustee shall promptly
notify the Company of such Special Record Date and, in the name and at the
expense of the Company, shall cause notice of the proposed payment of such
Defaulted Interest and the Special Record Date therefor to be mailed,
first-class postage prepaid, to each Holder at his address as it appears in the
Security Register, not less than 10 days prior to such Special Record Date.
Notice of the proposed payment of such Defaulted Interest and the Special Record
Date therefor having been so mailed, such Defaulted Interest shall be paid to
the Persons in whose names the Securities (or their respective Predecessor
Securities) are registered at the close of business on such Special Record Date
and shall no longer be payable pursuant to the following clause (2).

                (2) The Company may make payment of any Defaulted Interest in
any other lawful manner not inconsistent with the requirements of any securities
exchange on which the Securities may be listed, and upon such notice as may be
required by such exchange, if, after notice given by the Company to the Trustee
of the proposed payment pursuant to this Clause (2), such manner of payment
shall be deemed practicable by the Trustee.

        Subject to the foregoing provisions of this Section, each Security
delivered under this Indenture upon registration of transfer of or in exchange
for or in lieu of any other Security shall carry the rights to interest accrued
and unpaid, and to accrue, which were carried by such other Security.



                                      -30-
<PAGE>   36

        In the case of any Security which is converted after any Regular Record
Date and on or prior to the corresponding Interest Payment Date, interest on
such Security whose Stated Maturity is on such Interest Payment Date shall be
deemed to continue to accrue and shall be payable on such Interest Payment Date
notwithstanding such conversion and notwithstanding that such Security may have
been called for redemption on a Redemption Date within such period, and such
interest (whether or not punctually paid or duly provided for) shall be paid to
the Person in whose name that Security (or one or more Predecessor Securities)
is registered at the close of business on such Regular Record Date. Except as
otherwise expressly provided in the immediately preceding sentence, in the case
of any Security which is converted, interest whose Stated Maturity is after the
date of conversion of such Security shall not be payable (although such accrued
and unpaid interest will be deemed paid by the appropriate portion of the Common
Stock received by the holders upon such conversion).

SECTION 3.08. PERSONS DEEMED OWNERS.

        Prior to due presentment of a Security for registration of transfer, the
Company, the Trustee and any agent of the Company or the Trustee may treat the
Person in whose name such Security is registered as the owner of such Security
for the purpose of receiving payment of principal of, premium, if any, and
(subject to Section 3.07) interest on such Security and for all other purposes
whatsoever, whether or not such Security be overdue, and neither the Company,
the Trustee nor any agent of the Company or the Trustee shall be affected by
notice to the contrary.

SECTION 3.09. CANCELLATION.

        All Securities surrendered for payment, redemption, repurchase,
registration of transfer or exchange or conversion shall, if surrendered to any
Person other than the Trustee, be delivered to the Trustee and shall be promptly
canceled by it. The Company may at any time deliver to the Trustee for
cancellation any Securities previously authenticated and delivered hereunder
which the Company may have acquired in any manner whatsoever, and all Securities
so delivered shall be promptly canceled by the Trustee. No Securities shall be
authenticated in lieu of or in exchange for any Securities canceled as provided
in this Section, except as expressly permitted by this Indenture. All cancelled
Securities held by the Trustee shall be disposed of as directed by a Company
Order.

SECTION 3.10. COMPUTATION OF INTEREST.

        Interest on the Securities of each series shall be computed on the basis
of a 360-day year of twelve 30-day months.

                     ARTICLE IV. SATISFACTION AND DISCHARGE

SECTION 4.01. SATISFACTION AND DISCHARGE OF INDENTURE.

        This Indenture shall upon Company request cease to be of further effect
(except as to any surviving rights of conversion, registration of transfer or
exchange of Securities herein expressly provided for), and the Trustee, at the
expense of the Company, shall execute proper instruments acknowledging
satisfaction and discharge of this Indenture, when

                (1) either

                        (A) all Securities theretofore authenticated and
delivered (other than (i) Securities which have been destroyed, lost or stolen
and which have been replaced or paid as provided in Section 3.06 and (ii)
Securities for whose payment money has theretofore been deposited in trust or
segregated and held in trust by the Company and thereafter repaid to the Company
or discharged from such trust, as provided in Section 10.03) have been delivered
to the Trustee for cancellation; or

                        (B) all such Securities not theretofore delivered to the
Trustee for cancellation



                                      -31-
<PAGE>   37

                                (i) have become due and payable, or

                                (ii) will become due and payable at their Stated
Maturity within one year, or

                                (iii) are to be called for redemption within one
year under arrangements satisfactory to the Trustee for the giving of notice of
redemption by the Trustee in the name, and at the expense, of the Company,

and the Company, in the case of clause (i), (ii) or (iii) above, has deposited
or caused to be deposited irrevocably with the Trustee as trust funds in trust
for the benefit of Holders of Outstanding Securities in an amount sufficient to
pay and discharge the entire indebtedness on such Securities not theretofore
delivered to the Trustee for cancellation, for principal (and premium, if any)
and interest to the date of such deposit (in the case of Securities which have
become due and payable) or to the Stated Maturity or Redemption Date, as the
case may be;

                (2) the Company has paid or caused to be paid all other sums
payable hereunder by the Company;

                (3) the Company has delivered to the Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that all conditions
precedent herein provided for relating to the satisfaction and discharge of this
Indenture have been complied with; and

                (4) no Event of Default which, with notice or lapse of time, or
both, would become an Event of Default with respect to the Securities shall have
occurred and be continuing on the date of such deposit.

        Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 6.07, the obligations of
the Trustee to any Authenticating Agent under Section 6.14 and, if money shall
have been deposited with the Trustee pursuant to subclause (B) of clause (1) of
this Section, the obligations of the Trustee under Section 4.02 and the last
paragraph of Section 10.03 shall survive.

SECTION 4.02. APPLICATION OF TRUST MONEY.

        Subject to the provisions of the last paragraph of Section 10.03, all
money deposited with the Trustee pursuant to Section 4.01 shall be held in trust
and applied by it, in accordance with the provisions of the Securities and this
Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may
determine, to the Persons entitled thereto, of the principal (and premium, if
any) and interest for whose payment such money has been deposited with the
Trustee. All moneys deposited with the Trustee pursuant to Section 4.01 (and
held by it or any Paying Agent) for the payment of Securities subsequently
converted shall be returned to the Company upon Company Request.

                               ARTICLE V. REMEDIES

SECTION 5.01. EVENTS OF DEFAULT.

        "Event of Default," wherever used herein, means any one of the following
events (whatever the reason for such Event of Default and whether it shall be
occasioned by the provisions of Article XII or be voluntary or involuntary or be
effected by operation of law or pursuant to any judgment, decree or order of any
court or any order, rule or regulation of any administrative or governmental
body):

                (1) default in the payment of any interest upon any Security
when it becomes due and payable, and continuance of such default for a period of
30 days; or

                (2) default in the payment of the principal of (or premium, if
any, on) any Security at its Maturity; or



                                      -32-
<PAGE>   38

                (3) failure by the Company to provide the notice of a Change of
Control in accordance with Section 14.02 or notice of a Change of Control or
default in the payment of the Repurchase Price in respect of any Security on the
Repurchase Date therefor (whether or not such payment is prohibited by the
provisions of Article XII); or

                (4) default in the performance, or breach, of any covenant or
warranty of the Company in this Indenture (other than a covenant or warranty a
default in whose performance or whose breach is elsewhere in this Section
specifically dealt with), and continuance of such default or breach for a period
of 60 days after there has been given, by registered or certified mail, to the
Company by the Trustee or to the Company and the Trustee by the Holders of at
least 25% in principal amount of the Outstanding Securities a written notice
specifying such default or breach and requiring it to be remedied and stating
that such notice is a "Notice of Default" hereunder; or

                (5) a default under any bonds, debentures, notes or other
evidences of indebtedness for money borrowed by the Company or a Subsidiary or
under any mortgages, indentures or instruments under which there may be issued
or by which there may be secured or evidenced any indebtedness for money
borrowed by the Company or a Subsidiary, whether such indebtedness now exists or
shall hereafter be created, other than under a Non-Recourse Obligation, which
indebtedness, individually or in the aggregate, has a principal amount
outstanding in excess of U.S.$5,000,000, which default shall constitute a
failure to pay any portion of the principal of such indebtedness when due and
payable after the expiration of any applicable grace or cure period with respect
thereto or shall have resulted in such indebtedness becoming or being declared
due and payable prior to the date on which it would otherwise have become due
and payable, without such indebtedness having been discharged, or such
acceleration having been rescinded or annulled, within a period of 10 days after
there shall have been given, by registered or certified mail, to the Company by
the Trustee or to the Company and the Trustee by the Holders of at least 25% in
principal amount of the Outstanding Securities a written notice specifying such
default and requiring the Company to cause such indebtedness to be discharged or
cause such acceleration to be rescinded or annulled and stating that such notice
is a "Notice of Default" hereunder; or

                (6) the entry by a court having jurisdiction in the premises of
(A) a decree or order for relief in respect of the Company or a Significant
Subsidiary in an involuntary case or proceeding under any applicable Federal or
State bankruptcy, insolvency, reorganization or other similar law or (B) a
decree or order adjudging the Company or a Significant Subsidiary a bankrupt or
insolvent, or approving as properly filed a petition seeking reorganization,
arrangement, adjustment or composition of or in respect of the Company or a
Significant Subsidiary under any applicable Federal or State law, or appointing
a custodian, receiver, liquidator, assignee, trustee, sequestrator or other
similar official of the Company or a Significant Subsidiary or of any
substantial part of their respective properties, or ordering the winding up or
liquidation of the affairs of the Company or a Significant Subsidiary, and the
continuance of any such decree or order for relief or any such other decree or
order unstayed and in effect for a period of 60 consecutive days; or

                (7) the commencement by the Company or a Significant Subsidiary
of a voluntary case or proceeding under any applicable Federal or State
bankruptcy, insolvency, reorganization or other similar law or of any other case
or proceeding to be adjudicated a bankrupt or insolvent, or the consent by
either the Company or a Significant Subsidiary to the entry of a decree or order
for relief in respect of the Company or a Significant Subsidiary in an
involuntary case or proceeding under any applicable Federal or State bankruptcy,
insolvency, reorganization or other similar law or to the commencement of any
bankruptcy or insolvency case or proceeding against either the Company or a
Significant Subsidiary, or the filing by either the Company or a Significant
Subsidiary of a petition or answer or consent seeking reorganization or relief
under any applicable Federal or State law, or the consent by either the Company
or a Significant Subsidiary to the filing of such petition or to the appointment
of or taking possession by a custodian, receiver, liquidator, assignee, trustee,
sequestrator or other similar official of the Company or a Significant
Subsidiary or of any substantial part of their respective properties, or the
making by either the Company or a Significant Subsidiary of an assignment for
the benefit of creditors, or the admission by either the Company or a
Significant Subsidiary in writing of an inability to pay the debts of either the



                                      -33-
<PAGE>   39

Company or a Significant Subsidiary generally as they become due, or the taking
of corporate action by the Company or a Significant Subsidiary in furtherance of
any such action.

SECTION 5.02. ACCELERATION OF MATURITY; RESCISSION AND ANNULMENT.

        If an Event of Default (other than an Event of Default specified in
Section 5.01(1), 5.01(2), 5.01(6) or 5.01(7)) occurs and is continuing, then in
every such case the Trustee or the Holders of not less than 25% in principal
amount of the Outstanding Securities may declare the principal of all the
Securities to be due and payable immediately, by a notice in writing to the
Company (and to the Trustee if given by Holders), and upon any such declaration
such principal and any accrued interest thereon shall become immediately due and
payable. If an Event of Default specified in Sections 5.01(1) or 5.01(2) occurs
and is continuing, a Holder may, by notice in writing to the Company (with a
copy to the Trustee), declare the principal of such Security and any accrued
interest thereon immediately due and payable. If an Event of Default specified
in Section 5.01(6) or 5.01(7) occurs, the principal of, and accrued interest on,
all the Securities shall automatically, and without any declaration or other
action on the part of the Trustee or any Holder, become immediately due and
payable.

        At any time after such a declaration of acceleration has been made and
before a judgment or decree for payment of the money due has been obtained by
the Trustee as hereinafter in this Article V provided, the Holders of a majority
in principal amount of the Outstanding Securities, by written notice to the
Company and the Trustee, may rescind and annul such declaration and its
consequences if

                (1) the Company has paid or deposited with the Trustee a sum
sufficient to pay

                        (A) all overdue interest on all Securities,

                        (B) the principal of (and premium, if any, on) any
Securities which have become due otherwise than by such declaration of
acceleration and interest thereon at the rate borne by the Securities,

                        (C) to the extent that payment of such interest is
lawful, interest upon overdue interest at the rate borne by the Securities, and

                        (D) all sums paid or advanced by the Trustee hereunder
and the reasonable compensation, expenses, disbursements and advances of the
Trustee, its agents and counsel; and

                (2) all Events of Default, other than the nonpayment of the
principal of Securities which have become due solely by such declaration of
acceleration, have been cured or waived as provided in Section 5.13.

        No such rescission shall affect any subsequent default or impair any
right consequent thereon.

SECTION 5.03. COLLECTION OF INDEBTEDNESS AND SUITS FOR ENFORCEMENT BY TRUSTEE.

        If

                (1) default is made in the payment of any interest on any
Security when such interest becomes due and payable and such default continues
for a period of 30 days, or

                (2) default is made in the payment of the principal of (or
premium, if any, on) any Security at the Maturity thereof, the Trustee is
authorized to recover judgment in its own name and as trustee of an express
trust against the Company for the whole amount then due and payable on such
Securities for principal (and premium, if any) and interest, and, to the extent
that payment of such interest shall be legally enforceable, interest on any
overdue principal (and premium, if any) and on any overdue interest, at the rate
borne by the Securities, and, in addition 



                                      -34-
<PAGE>   40

thereto, such further amount as shall be sufficient to cover the costs and
expenses of collection, including the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel.

        If an Event of Default occurs and is continuing, the Trustee may in its
discretion proceed to protect and enforce its rights and the rights of the
Holders by such appropriate judicial proceedings as the Trustee shall deem most
effectual to protect and enforce any such rights, whether for the specific
enforcement of any covenant or agreement in this Indenture or in aid of the
exercise of any power granted herein, or to enforce any other proper remedy.

SECTION 5.04. TRUSTEE MAY FILE PROOFS OF CLAIM.

        In case of any judicial proceeding relative to the Company (or any other
obligor upon the Securities), its property or its creditors, the Trustee shall
be entitled and empowered, by intervention in such proceeding or otherwise,

                (1) to file and prove a claim for the whole amount of principal
and interest owing and unpaid in respect of the Securities and to file such
other papers or documents as may be necessary or advisable in order to have the
claims of the Trustee (including any claim for the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel) and
of the Holders allowed in such judicial proceeding, and

                (2) to collect and receive any moneys or other property payable
or deliverable on any such claim and to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator or
other similar official in any such judicial proceeding is hereby authorized by
each Holder to make such payments to the Trustee and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders, to
pay to the Trustee any amount due it for the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, and any other
amounts due the Trustee under Section 6.07.

        No provision of this Indenture shall be deemed to authorize the Trustee
to authorize or consent to or accept or adopt on behalf of any Holder any plan
of reorganization, arrangement, adjustment or composition affecting the
Securities or the rights of any Holder thereof or to authorize the Trustee to
vote in respect of the claim of any Holder in any such proceeding; provided,
however, that the Trustee may, on behalf of the Holders, vote for the election
of a trustee in bankruptcy or similar official and be a member of a creditors'
or other similar committee.

SECTION 5.05. TRUSTEE MAY ENFORCE CLAIMS WITHOUT POSSESSION OF SECURITIES.

        All rights of action and claims under this Indenture or the Securities
may be prosecuted and enforced by the Trustee without the possession of any of
the Securities or the production thereof in any proceeding relating thereto, and
any such proceeding instituted by the Trustee shall be brought in its own name
as trustee of an express trust, and any recovery of judgment shall, after
provision for the payment of the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, be for the
ratable benefit of the Holders of the Securities in respect of which such
judgment has been recovered.

SECTION 5.06. APPLICATION OF MONEY COLLECTED.

        Any money collected by the Trustee pursuant to this Article V shall be
applied in the following order, at the date or dates fixed by the Trustee and,
in case of the distribution of such money on account of principal (or premium,
if any) or interest, upon presentation of the Securities and the notation
thereon of the payment if only partially paid and upon surrender thereof if
fully paid:

                FIRST: to the payment of all amounts due the Trustee under
Section 6.07;



                                      -35-
<PAGE>   41

                SECOND: Subject to Article XII to the payment of the amounts
then due and unpaid for first, interest (including Additional Interest) on, and,
second, for principal of (and premium, if any, on) the Securities in respect of
which or for the benefit of which such money has been collected, ratably,
without preference or priority of any kind, according to the amounts due and
payable on such Securities for interest and principal (and premium, if any)
respectively; and

                THIRD: The balance, if any, to the Person or Persons entitled
thereto, as their interest may appear or as a court of competent jurisdiction
shall direct.

SECTION 5.07. LIMITATION ON SUITS.

        No Holder of any Security shall have any right to institute any
proceeding, judicial or otherwise, with respect to this Indenture, or for the
appointment of a receiver or trustee, or for any other remedy hereunder, unless

                (1) such Holder has previously given written notice to the
Trustee of a continuing Event of Default;

                (2) the Holders of not less than 25% in principal amount of the
Outstanding Securities shall have made written request to the Trustee to
institute proceedings in respect of such Event of Default in its own name as
Trustee hereunder;

                (3) such Holder or Holders have offered to the Trustee
reasonable indemnity against the costs, expenses and liabilities to be incurred
in compliance with such request;

                (4) the Trustee for 60 days after its receipt of such notice,
request and offer of indemnity has failed to institute any such proceeding; and

                (5) no direction inconsistent with such written request has been
given to the Trustee during such 60-day period by the Holders of a majority in
principal amount of the Outstanding Securities;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or to seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all of such
Holders.

SECTION 5.08. UNCONDITIONAL RIGHT OF HOLDERS TO RECEIVE PRINCIPAL, PREMIUM AND
              INTEREST AND TO CONVERT.

        Notwithstanding any other provision in this Indenture, the Holder of any
Security shall have the right, which is absolute and unconditional, to receive
payment of the principal of (and premium, if any) and (subject to Section 3.07)
interest on such Security on the respective Stated Maturities expressed in such
Security (or, in the case of redemption or repurchase, on the Redemption Date or
Repurchase Date, as the case may be) and to convert such Security in accordance
with Article XIII and to institute suit for the enforcement of any such payment
and right to convert, and such rights shall not be impaired without the consent
of such Holder.

SECTION 5.09. RESTORATION OF RIGHTS AND REMEDIES.

        If the Trustee or any Holder has instituted any proceeding to enforce
any right or remedy under this Indenture and such proceeding has been
discontinued or abandoned for any reason, or has been determined adversely to
the Trustee or to such Holder, then and in every such case, subject to any
determination in such proceeding, the Company, the Trustee and the Holders shall
be restored severally and respectively to their former positions hereunder 



                                      -36-
<PAGE>   42

and thereafter all rights and remedies of the Trustee and the Holders shall
continue as though no such proceeding had been instituted.

SECTION 5.10. RIGHTS AND REMEDIES CUMULATIVE.

        Except as otherwise provided with respect to the replacement or payment
of mutilated, destroyed, lost or stolen Securities in the last paragraph of
Section 3.06, no right or remedy herein conferred upon or reserved to the
Trustee or to the Holders 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 hereunder, or otherwise, shall not prevent the
concurrent assertion or employment of any other appropriate right or remedy.

SECTION 5.11. DELAY OR OMISSION NOT WAIVER.

        No delay or omission of the Trustee or of any Holder of any Securities
to exercise any right or remedy accruing upon any Event of Default shall impair
any such right or remedy or constitute a waiver of any such Event of Default or
an acquiescence therein. Every right and remedy given by this Article V or by
law to the Trustee or to the Holders may be exercised from time to time, and as
often as may be deemed expedient, by the Trustee or by the Holders, as the case
may be.

SECTION 5.12. CONTROL BY HOLDERS.

        The Holders of a majority in principal amount of the Outstanding
Securities shall have the right to direct the time, method and place of
conducting any proceeding for any remedy available to the Trustee or exercising
any trust or power conferred on the Trustee; provided that

                (1) such direction shall not be in conflict with any rule of law
or with this Indenture, and

                (2) the Trustee may take any other action deemed proper by the
Trustee which is not inconsistent with such direction.

SECTION 5.13. WAIVER OF PAST DEFAULTS.

        The Holders of not less than a majority in principal amount of the
Outstanding Securities may on behalf of the Holders of all the Securities waive
any past default hereunder and its consequences, except a default

                (1) in the payment of the principal of (or premium, if any) or
interest on any Security, or

                (2) in respect of a covenant or provision hereof which under
Article IX cannot be modified or amended without the consent of the Holder of
each Outstanding Security affected.

        Upon any such waiver, such default shall cease to exist, and any Event
of Default arising therefrom shall be deemed to have been cured, for every
purpose of this Indenture; but no such waiver shall extend to any subsequent or
other default or impair any right consequent thereon.

SECTION 5.14. UNDERTAKING FOR COSTS.

        In any suit for the enforcement of any right or remedy under this
Indenture, or in any suit against the Trustee for any action taken, suffered or
omitted by it as Trustee, a court may require any party litigant in such suit to
file an undertaking to pay the costs of such suit, and may assess costs against
any such party litigant, having due regard to the merits and good faith of the
claims or defenses made by such party litigant; provided, that this Section 5.14
shall not be deemed to authorize any court to require such an undertaking or to
make such an assessment in any suit 



                                      -37-
<PAGE>   43

instituted by the Company or in any suit for the enforcement of the right to
convert any Security in accordance with Article XIII.

SECTION 5.15. WAIVER OF USURY, STAY OR EXTENSION LAWS.

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

                             ARTICLE VI. THE TRUSTEE

SECTION 6.01. CERTAIN DUTIES AND RESPONSIBILITIES.

        (a) Except during the continuance of an Event of Default,

                (1) the Trustee undertakes to perform such duties and only such
duties as are specifically set forth in this Indenture, and no implied covenants
or obligations shall be read into this Indenture against the Trustee; and

                (2) in the absence of bad faith on its part, the Trustee may
conclusively rely, as to the truth of the statements and the correctness of the
opinions expressed therein, upon certificates or opinions furnished to the
Trustee and conforming to the requirements of this Indenture; but in the case of
any such certificates or opinions which by any provision hereof are specifically
required to be furnished to the Trustee, the Trustee shall be under a duty to
examine the same to determine whether or not they conform to the requirements of
this Indenture.

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

        (c) No provision of this Indenture shall be construed to relieve the
Trustee from liability for its own negligent action, its own negligent failure
to act, or its own willful misconduct, except that (1) this paragraph (c) shall
not be construed to limit the effect of paragraph (a) of this Section; (2) the
Trustee shall not be liable for any error of judgment made in good faith by a
Responsible Officer, unless it shall be proved that the Trustee was negligent in
ascertaining the pertinent facts; (3) the Trustee shall not be liable with
respect to any action taken or omitted to be taken by it in good faith in
accordance with the direction of the Holders of a majority in principal amount
of the Outstanding Securities relating to the time, method and place of
conducting any proceeding for any remedy available to the Trustee, or exercising
any trust or power conferred upon the Trustee, under this Indenture; and (4) no
provision of this Indenture shall require the Trustee to expend or risk its own
funds or otherwise incur any financial liability in the performance of any of
its duties hereunder, or in the exercise of any of its rights or powers.

        (d) Whether or not therein expressly so provided, every provision of
this Indenture relating to the conduct or affecting the liability of or
affording protection to the Trustee (as Trustee, Paying Agent, Authenticating
Agent or Security Registrar) shall be subject to the provisions of this Section.

SECTION 6.02. NOTICE OF DEFAULTS.

        Within 90 days after the occurrence of any default hereunder, the
Trustee shall give the Holders, in the manner provided in Section 1.06, notice
of any default hereunder actually known to a Responsible Officer of the 



                                      -38-
<PAGE>   44

Trustee; provided, however, that in the case of any default of the character
specified in Section 5.01(3), no such notice to Holders shall be given until at
least 30 days after the occurrence thereof. The Trustee shall not be deemed to
have notice of a default unless (i) the Trustee has received written notice
thereof from the Company or any Holder or (ii) a Responsible Officer of the
Trustee shall have actual knowledge thereof. For the purpose of this Section,
the term "default" means any event which is, or after notice or lapse of time or
both would become, an Event of Default.

SECTION 6.03. CERTAIN RIGHTS OF TRUSTEE.

        Subject to the provisions of Section 6.01:

                (a) the Trustee may rely and shall be protected in acting or
refraining from acting upon any resolution, certificate, statement, instrument,
opinion, report, notice, request, direction, consent, order, bond, debenture,
note, other evidence of indebtedness or other paper or document believed by it
to be genuine and to have been signed or presented by the proper party or
parties;

                (b) any request or direction of the Company mentioned herein
shall be sufficiently evidenced by a Company Request or Company Order and any
resolution of the Board of Directors shall be sufficiently evidenced by a Board
Resolution;

                (c) whenever in the administration of this Indenture the Trustee
shall deem it desirable that a matter be proved or established prior to taking,
suffering or omitting any action hereunder, the Trustee (unless other evidence
be herein specifically prescribed) may require and, in the absence of bad faith
on its part, rely upon an Officers' Certificate;

                (d) the Trustee may consult with counsel and the written advice
of such counsel or any Opinion of Counsel shall be full and complete
authorization and protection in respect of any action taken, suffered or omitted
by it hereunder in good faith and in reliance thereon;

                (e) the Trustee shall be under no obligation to exercise any of
the rights or powers vested in it by this Indenture at the request or direction
of any of the Holders pursuant to this Indenture, unless such Holders shall have
offered to the Trustee reasonable security or indemnity against the costs,
expenses and liabilities which might be incurred by it in compliance with such
request or direction;

                (f) the Trustee shall not be bound to make any investigation
into the facts or matters stated in any resolution, certificate, statement,
instrument, opinion, report, notice, request, direction, consent, order, bond,
debenture, note, other evidence of indebtedness or other paper or document, but
the Trustee, in its discretion, may make such further inquiry or investigation
into such facts or matters as it may see fit, and, if the Trustee shall
determine to make such further inquiry or investigation, it shall be entitled to
examine the books, records and premises of the Company, personally or by agent
or attorney; and

                (g) the Trustee may execute any of the trusts or powers
hereunder or perform any duties hereunder either directly or by or through
agents or attorneys and the Trustee shall not be responsible for any misconduct
or negligence on the part of any agent or attorney appointed with due care by it
hereunder.

SECTION 6.04. NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF SECURITIES.

        The recitals contained herein and in the Securities, except the
Trustee's certificates of authentication, shall be taken as the statements of
the Company, and neither the Trustee nor any Authenticating Agent assumes any
responsibility for their correctness. The Trustee makes no representations as to
the validity or sufficiency of this Indenture or of the Securities. Neither the
Trustee nor any Authenticating Agent shall be accountable for the use or
application by the Company of Securities or the proceeds thereof.



                                      -39-
<PAGE>   45

SECTION 6.05. MAY HOLD SECURITIES.

        The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Company, in its individual or any other
capacity, may become the owner or pledgee of Securities and, subject to Section
6.08 and Section 6.13, may otherwise deal with the Company with the same rights
it would have if it were not Trustee, Authenticating Agent, Paying Agent,
Security Registrar or such other agent.

SECTION 6.06. MONEY HELD IN TRUST.

        Money held by the Trustee in trust hereunder need not be segregated from
other funds except to the extent required by law. The Trustee shall be under no
liability for interest on any money received by it hereunder except as otherwise
agreed with the Company.

SECTION 6.07. COMPENSATION AND REIMBURSEMENT.

        The Company agrees:

                (1) to pay to the Trustee from time to time reasonable
compensation for all services rendered by it hereunder (which compensation shall
not be limited by any provision of law in regard to the compensation of a
trustee of an express trust);

                (2) except as otherwise expressly provided herein, to reimburse
the Trustee upon its request for all reasonable expenses, disbursements and
advances incurred or made by the Trustee in accordance with any provision of
this Indenture (including the reasonable compensation and the expenses and
disbursements of its agents and counsel), except any such expense, disbursement
or advance as may be attributable to its negligence or bad faith; and

                (3) to indemnify the Trustee for, and to hold it harmless
against, any loss, liability or expense incurred without negligence, willful
misconduct or bad faith on its part, arising out of or in connection with the
acceptance or administration of this trust, including the costs and expenses of
defending itself against any claim or liability in connection with the exercise
or performance of any of its powers or duties hereunder. The Trustee shall
notify the Company of any claim asserted against it for which it may seek
indemnity.

                (4) All indemnifications and releases from liability granted
hereunder to the Trustee shall extend to its officers, directors, employees,
agents, successors and assigns.

                (5) When the Trustee incurs expenses or renders services after
the occurrence of any Event of Default specified in Section 5.01, the expenses
and the compensation for the services are intended to constitute expenses of
administration under any bankruptcy, insolvency or similar laws.

                (6) The obligations of the Company under this Section shall
survive the satisfaction and discharge of this Indenture.

SECTION 6.08. DISQUALIFICATION; CONFLICTING INTERESTS.

        If the Trustee has or shall acquire a conflicting interest within the
meaning of the Trust Indenture Act, the Trustee shall either eliminate such
interest or resign, to the extent and in the manner provided by, and subject to
the provisions of, the Trust Indenture Act and this Indenture. Notwithstanding
anything in this Indenture to the contrary, the Company and the Trustee
acknowledge that the Trustee is acting as a Trustee both under this Indenture
and under the 1997 Indenture, pursuant to which $22,000,000 of such Original
Notes were exchanged for the Securities hereunder. The Company's obligations
under the 1997 Indenture and the Indenture hereunder are both unsecured and 



                                      -40-
<PAGE>   46

rank pari passu with each other. Upon a default or an Event of Default under
either or both indentures, a conflict or interest may arise which would require
the Trustee to resign as Trustee from either or both indentures.

SECTION 6.09. CORPORATE TRUSTEE REQUIRED; ELIGIBILITY.

        There shall at all times be a Trustee hereunder which shall be a
corporation organized and doing business under the laws of the United States,
authorized under such laws to exercise corporate trust powers, which shall have
(or, in the case of a corporation included in a bank holding company system, the
related bank holding company shall have) a combined capital and surplus of at
least U.S.$50,000,000, subject to supervision or examination by federal or state
authority, in good standing and having an established place of business or
agency in the Borough of Manhattan, The City of New York. If such corporation or
related bank holding company publishes reports of condition at least annually,
pursuant to law or to the requirements of said supervising or examining
authority, then for the purposes of this Section, the combined capital and
surplus of such corporation or related bank holding company shall be deemed to
be its combined capital and surplus as set forth in its most recent report of
condition so published. If at any time the Trustee shall cease to be eligible in
accordance with the provisions of this Section, it shall resign immediately in
the manner and with the effect hereinafter specified in this Article.

SECTION 6.10. RESIGNATION AND REMOVAL; APPOINTMENT OF SUCCESSOR.

        (a) No resignation or removal of the Trustee and no appointment of a
successor Trustee pursuant to this Article shall become effective until the
acceptance of appointment by the successor Trustee in accordance with the
applicable requirements of Section 6.11.

        (b) The Trustee may resign at any time by giving written notice thereof
to the Company. If the instrument of acceptance by a successor Trustee required
by Section 6.11 shall not have been delivered to the Trustee within 30 days
after the giving of such notice of resignation, the resigning Trustee may
petition any court of competent jurisdiction for the appointment of a successor
Trustee.

        (c) The Trustee may be removed at any time by Act of the Holders of a
majority in principal amount of the Outstanding Securities, delivered to the
Trustee and to the Company.

        (d) If at any time:

                (1) the Trustee shall fail to comply with Section 6.08 after
written request therefor by the Company or by any Holder who has been a bona
fide Holder of a Security for at least six months, or

                (2) the Trustee shall cease to be eligible under Section 6.09
and shall fail to resign after written request therefor by the Company or by any
such Holder, or

                (3) the Trustee shall become incapable of acting or shall be
adjudged a bankrupt or insolvent or a receiver of the Trustee or of its property
shall be appointed or any public officer shall take charge or control of the
Trustee or of its property or affairs for the purpose of rehabilitation,
conservation or liquidation,

then, in any such case, (i) the Company by a Board Resolution may remove the
Trustee, or (ii) subject to Section 5.14, any Holder who has been a bona fide
Holder of a Security for at least six months may, on behalf of himself and all
others similarly situated, petition any court of competent jurisdiction for the
removal of the Trustee and the appointment of a successor Trustee.

        (e) If the Trustee shall resign, be removed or become incapable of
acting, or if a vacancy shall occur in the office of Trustee for any cause, the
Company, by a Board Resolution, shall promptly appoint a successor Trustee. If,
within one year after such resignation, removal or incapability, or the
occurrence of such vacancy, a successor Trustee shall be appointed by Act of the
Holders of a majority in principal amount of the Outstanding 



                                      -41-
<PAGE>   47

Securities delivered to the Company and the retiring Trustee, the successor
Trustee so appointed shall, forthwith upon its acceptance of such appointment in
accordance with the applicable requirements of Section 6.11, become the
successor Trustee and to that extent supersede the successor Trustee appointed
by the Company. If no successor Trustee shall have been so appointed by the
Company or the Holders and accepted appointment in the manner required by
Section 6.11, any Holder who has been a bona fide Holder of a Security for at
least six months may, on behalf of himself and all others similarly situated,
petition any court of competent jurisdiction for the appointment of a successor
Trustee.

        (f) The Company shall give notice of each resignation and each removal
of the Trustee and each appointment of a successor Trustee to all Holders in the
manner provided in Section 1.06. Each notice shall include the name of the
successor Trustee and the address of its Corporate Trust Office.

SECTION 6.11. ACCEPTANCE OF APPOINTMENT BY SUCCESSOR.

        Every successor Trustee appointed hereunder shall execute, acknowledge
and deliver to the Company and to the retiring Trustee an instrument accepting
such appointment, and thereupon the resignation or removal of the retiring
Trustee shall become effective and such successor Trustee, without any further
act, deed or conveyance, shall become vested with all the rights, powers, trusts
and duties of the retiring Trustee; but, on the request of the Company or the
successor Trustee, such retiring Trustee shall, upon payment of its charges,
execute and deliver an instrument transferring to such successor Trustee all the
rights, powers and trusts of the retiring Trustee and shall duly assign,
transfer and deliver to such successor Trustee all property and money held by
such retiring Trustee hereunder. Upon request of any such successor Trustee, the
Company shall execute any and all instruments for more fully and certainly
vesting in and confirming to such successor Trustee all such rights, powers and
trusts.

        No successor Trustee shall accept its appointment unless at the time of
such acceptance such successor Trustee shall be qualified and eligible under
this Article.

SECTION 6.12. MERGER, CONVERSION, CONSOLIDATION OR SUCCESSION TO BUSINESS.

        Any corporation into which the Trustee may be merged or converted or
with which it may be consolidated, or any corporation resulting from any merger,
conversion or consolidation to which the Trustee shall be a party, or any
corporation succeeding to all or substantially all the corporate trust business
of the Trustee, shall be the successor of the Trustee hereunder, provided such
corporation shall be otherwise qualified and eligible under this Article,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto. In case any Securities shall have been authenticated,
but not delivered, by the Trustee then in office, any successor by merger,
conversion or consolidation to such authenticating Trustee may adopt such
authentication and deliver the Securities so authenticated with the same effect
as if such successor Trustee had itself authenticated such Securities.

SECTION 6.13. PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY.

        If and when the Trustee shall be or become a creditor of the Company (or
any other obligor upon the Securities), the Trustee shall be subject to the
provisions of the Trust Indenture Act regarding the collection of claims against
the Company (or any such other obligor).

SECTION 6.14. APPOINTMENT OF AUTHENTICATING AGENT.

        The Trustee may appoint an Authenticating Agent or Agents which shall be
authorized to act on behalf of the Trustee to authenticate Securities issued
upon original issue and upon exchange, registration of transfer, partial
conversion, partial redemption, or partial repurchase or pursuant to Section
3.06, and Securities so authenticated shall be entitled to the benefits of this
Indenture and shall be valid and obligatory for all purposes as if authenticated
by the Trustee hereunder. Wherever reference is made in this Indenture to the
authentication and delivery of Securities by the Trustee or the Trustee's
certificate of authentication, such reference shall be deemed to include



                                      -42-
<PAGE>   48

authentication and delivery on behalf of the Trustee by an Authenticating Agent
and a certificate of authentication executed on behalf of the Trustee by an
Authenticating Agent. Each Authenticating Agent shall be acceptable to the
Company and shall at all times be a corporation organized and doing business
under the laws of the United States, authorized under such laws to act as
Authenticating Agent, which shall have (or, in the case of a corporation
included in a bank holding company system, the related bank holding company
shall have) a combined capital and surplus of not less than U.S.$50,000,000 and
subject to supervision or examination by Federal or State authority. If such
Authenticating Agent publishes reports of condition at least annually, pursuant
to law or to the requirements of said supervising or examining authority, then
for the purposes of this Section, the combined capital and surplus of such
Authenticating Agent or related bank holding company shall be deemed to be its
combined capital and surplus as set forth in its most recent report of condition
so published. If at any time an Authenticating Agent shall cease to be eligible
in accordance with the provisions of this Section, such Authenticating Agent
shall resign immediately in the manner and with the effect specified in this
Section.

        Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency or
corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible
under this Section, without the execution or filing of any paper or any further
act on the part of the Trustee or the Authenticating Agent.

        An Authenticating Agent may resign at any time by giving written notice
thereof to the Trustee and to the Company. The Trustee may at any time terminate
the agency of an Authenticating Agent by giving written notice thereof to such
Authenticating Agent and to the Company. Upon receiving such a notice of
resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Trustee may appoint a successor Authenticating
Agent which shall be acceptable to the Company and shall mail written notice of
such appointment by first-class mail, postage prepaid, to all Holders as their
names and addresses appear in the Security Register. Any successor
Authenticating Agent upon acceptance of its appointment hereunder shall become
vested with all the rights, powers and duties of its predecessor hereunder, with
like effect as if originally named as an Authenticating Agent. No successor
Authenticating Agent shall be appointed unless eligible under the provisions of
this Section.

        The Trustee agrees to pay to each Authenticating Agent from time to time
reasonable compensation for its services under this Section, and the Trustee
shall be entitled to be reimbursed for such payments, subject to the provisions
of Section 6.07.

        If an appointment is made pursuant to this Section, the Securities may
have endorsed thereon, in addition to the Trustee's certificate of
authentication, an alternative certificate of authentication in the following
form:

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

                                            ___________________________________,
                                            As Trustee

                                            By_________________________________,
                                            As Authenticating Agent

                                            By_________________________________,
                                            Authorized Signatory



                                      -43-
<PAGE>   49

SECTION 6.15.  APPOINTMENT OF CO-TRUSTEE.

        Subject to the qualifications set forth in Section 6.09, the Trustee may
appoint an additional institution as a separate trustee or co-trustee. If the
Trustee appoints an additional institution as a separate trustee or co- trustee,
each and every remedy, power, right, claim, demand, cause of action, immunity,
estate, duty, obligation, title, interest and lien expressed or intended by this
Indenture to be exercised by, vested in and conveyed by the Trustee with respect
thereto shall be exercisable by, vested in and conveyed to such separate trustee
or co-trustee, but only to the extent necessary to enable such separate trustee
or co-trustee to exercise such powers, rights and remedies, and every covenant
and obligation necessary for the exercise thereby by such separate trustee or
co-trustee shall run to and be enforceable by either of them. Should any
instrument in writing from the Company be required by the separate trustee or
co-trustee so appointed by the Trustee for more fully vesting in and confirming
to them such properties, rights, powers, trusts, duties and obligations, any and
all such instruments in writing shall, on request, be executed, acknowledged and
delivered by the Company. If any separate trustee or co-trustee, or a successor
to either, shall become incapable of acting or not qualified to act, resign or
be removed, all the estate, properties, rights, powers, trusts, duties and
obligations of such separate trustee or co-trustee, so far as permitted by law,
shall vest in and be exercised by the Trustee until the appointment of a
successor to such separate trustee or co-trustee. The appointment of any
separate trustee or co-trustee shall be subject to written approval of the
Company so long as no Event of Default has occurred and is continuing under this
Indenture.

         ARTICLE VII. HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 7.01. COMPANY TO FURNISH TRUSTEE NAMES AND ADDRESSES OF HOLDERS.

        The Company will furnish or cause to be furnished to the Trustee

                (a) semi-annually, not more than 15 days after each Regular
Record Date, a list, in such form as the Trustee may reasonably require, of the
names and addresses of the Holders as of such Regular Record Date, and

                (b) at such other times as the Trustee may request in writing,
within 30 days after the receipt by the Company of any such request, a list of
similar form and content as of a date not more than 15 days prior to the time
such list is furnished;

excluding from any such list names and addresses received by the Trustee in its
capacity as Security Registrar.

SECTION 7.02. PRESERVATION OF INFORMATION; COMMUNICATIONS TO HOLDERS.

        (a) The Trustee shall preserve, in as current a form as is reasonably
practicable, the names and addresses of Holders contained in the most recent
list furnished to the Trustee as provided in Section 7.01 and the names and
addresses of Holders received by the Trustee in its capacity as Security
Registrar. The Trustee may destroy any list furnished to it as provided in
Section 7.01 upon receipt of a new list so furnished.

        (b) The rights of Holders to communicate with other Holders with respect
to their rights under this Indenture or under the Securities, and the
corresponding rights and duties of the Trustee, shall be as provided by the
Trust Indenture Act.

        (c) Every Holder of Securities, by receiving and holding the same,
agrees with the Company and the Trustee that neither the Company nor the Trustee
nor any agent of either of them shall be held accountable by reason of any
disclosure of information as to names and addresses of Holders made pursuant to
the Trust Indenture Act.



                                      -44-
<PAGE>   50

SECTION 7.03. REPORTS BY TRUSTEE.

        (a) The Trustee shall transmit to Holders such reports concerning the
Trustee and its actions under this Indenture as may be required pursuant to the
Trust Indenture Act at the times and in the manner provided pursuant thereto.

        (b) A copy of each such report shall, at the time of such transmission
to Holders, be filed by the Trustee with each stock exchange upon which the
Securities are listed, with the Commission, if applicable, and with the Company.
The Company will notify the Trustee when the Securities are listed on any stock
exchange.

SECTION 7.04. REPORTS BY COMPANY.

        (a) The Company shall file with the Trustee and the Commission, if
applicable, and transmit to Holders, such information, documents and other
reports, and such summaries thereof, as may be required pursuant to the Trust
Indenture Act at the times and in the manner provided pursuant to such Act;
provided that any such information, documents or reports required to be filed
with the Commission pursuant to Section 13 or 15(d) of the Exchange Act shall be
filed with the Trustee within 15 days after the same is so required to be filed
with the Commission. Notwithstanding anything to the contrary contained herein,
the Trustee shall have no duty to review such documents for the purpose of
determining compliance with this Indenture.

        (b) The Company shall provide the Trustee with at least 30 days' prior
notice of any change in location of its principal executive offices or other
principal place of business.

       ARTICLE VIII. CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 8.01. COMPANY MAY CONSOLIDATE, ETC., ONLY ON CERTAIN TERMS.

        The Company shall not consolidate with or merge into any other Person
or, directly or indirectly, convey, transfer, sell, lease or otherwise dispose
of all or substantially all of its properties and assets to any Person, and the
Company shall not permit any Person to consolidate with or merge into the
Company or convey, transfer, sell, lease or otherwise dispose of all or
substantially all of its properties and assets to the Company, unless:

                (1) in case the Company shall consolidate with or merge into
another Person or convey, transfer or lease its properties and assets
substantially as an entirety to any Person, the Person formed by such
consolidation or into which the Company is merged or the Person which acquires
by conveyance or transfer, or which leases, the properties and assets of the
Company substantially as an entirety shall be a corporation, partnership or
trust, shall be organized and validly existing under the laws of the United
States, any State thereof or the District of Columbia and shall expressly
assume, by an indenture supplemental hereto, executed and delivered to the
Trustee, in form satisfactory to the Trustee, the due and punctual payment of
the principal of (and premium, if any) and interest (including Additional
Interest) on all the Securities and the performance or observance of every
covenant of this Indenture on the part of the Company to be performed or
observed and shall have provided for conversion rights in accordance with
Article XIII;

                (2) immediately after giving effect to such transaction, no
Event of Default, and no event which, after notice or lapse of time or both,
would become an Event of Default, shall have happened and be continuing; and

                (3) the Company has delivered to the Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that such consolidation,
merger, conveyance, transfer or lease and, if a supplemental indenture is
required in connection with such transaction, such supplemental indenture comply
with this Article and that all conditions precedent herein provided for relating
to such transaction have been complied with.



                                      -45-
<PAGE>   51

SECTION 8.02. SUCCESSOR SUBSTITUTED.

        Upon any consolidation of the Company with, or merger of the Company
into, any other Person or any conveyance, transfer or lease of the properties
and assets of the Company substantially as an entirety in accordance with
Section 8.01, the successor Person formed by such consolidation or into which
the Company is merged or to which such conveyance, transfer or lease is made
shall succeed to, and be substituted for, and may exercise every right and power
of, the Company under this Indenture with the same effect as if such successor
Person had been named as the Company herein, and thereafter, except in the case
of a lease, the predecessor Person shall be released from its obligations and
covenants under this Indenture and the Securities.

                       ARTICLE IX. SUPPLEMENTAL INDENTURES

SECTION 9.01. SUPPLEMENTAL INDENTURES WITHOUT CONSENT OF HOLDERS.

        Without the consent of any Holders, the Company, when authorized by a
Board Resolution, and the Trustee, at any time and from time to time, may enter
into one or more indentures supplemental hereto, in form satisfactory to the
Trustee, for any of the following purposes:

                (1) to evidence the succession of another Person to the Company
and the assumption by any such successor of the covenants of the Company herein
and in the Securities; or

                (2) to add to the covenants of the Company for the equal and
ratable benefit of the Holders, or to surrender any right or power herein
conferred upon the Company; or

                (3) to secure the Company's obligations in respect of the
Securities; or

                (4) to make provision with respect to the conversion rights of
Holders pursuant to the requirements of Article XIII; or

                (5) to cure any ambiguity, to correct or supplement any
provision herein which may be inconsistent with any other provision herein, to
correct or supplement any provision herein which limits, qualifies or conflicts
with a provision of the Trust Indenture Act which is required under such Act to
be a part of and govern this Indenture, in any case to the extent necessary to
qualify this Indenture under the Trust Indenture Act, or to make any other
provisions with respect to matters or questions arising under this Indenture
which shall not be inconsistent with the provisions of this Indenture; provided
that such action pursuant to this clause (5) shall not adversely affect the
interests or legal rights of the Holders in any material respect.

         SECTION 9.02. SUPPLEMENTAL INDENTURES WITH CONSENT OF HOLDERS.

        With the consent of the Holders of not less than a majority in principal
amount of the Outstanding Securities, by the Act of said Holders delivered to
the Company and the Trustee, the Company, when authorized by a Board Resolution,
and the Trustee may enter into an indenture or indentures supplemental hereto
for the purpose of adding any provisions to or changing in any manner or
eliminating any of the provisions of this Indenture or of modifying in any
manner the rights of the Holders under this Indenture; provided, however, that
no such supplemental indenture shall, without the consent of the Holder of each
Outstanding Security affected thereby,

                (1) change the Stated Maturity of the principal of, or any
installment of interest on, any Security, or reduce the principal amount thereof
or the rate of interest thereon or any premium payable upon the redemption
thereof, or change the place of payment where, or the coin or currency in which,
any Security or any premium or interest thereon is payable, or impair the right
to institute suit for the enforcement of any such payment on or after the Stated
Maturity thereof (or, in the case of redemption or repurchase, on or after the
Redemption Date or Repurchase Date, as the case may be), or adversely affect the
right to convert any Security as provided in 



                                      -46-
<PAGE>   52

Article XIII (except as permitted by Section 9.01(4)), or modify the provisions
of this Indenture with respect to the subordination of the Securities in a
manner adverse to the Holders, or modify the redemption provisions in a manner
adverse to the Holders, or modify the provisions relating to the Company's
requirement to offer to repurchase Securities upon a Change in Control in a
manner adverse to the Holders, or

                (2) reduce the percentage in principal amount of the Outstanding
Securities, the consent of whose Holders is required for any such supplemental
indenture, or the consent of whose Holders is required for any waiver (of
compliance with certain provisions of this Indenture or certain defaults
hereunder and their consequences) provided for in this Indenture, or

                (3) modify the obligation of the Company to maintain an office
or agency in the Borough of Manhattan, The City of New York or San Francisco,
California pursuant to Section 10.02, or

                (4) modify any of the provisions of this Section 9.02, Section
5.13 or Section 10.08, except to increase any such percentage or to provide that
certain other provisions of this Indenture cannot be modified or waived without
the consent of the Holder of each Outstanding Security affected thereby.

        It shall not be necessary for any Act of Holders under this Section to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such Act shall approve the substance thereof.

SECTION 9.03. EXECUTION OF SUPPLEMENTAL INDENTURES.

        In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article IX or the modifications thereby
of the trusts created by this Indenture, the Trustee shall be entitled to
receive, and (subject to Section 6.01 and Section 6.03) shall be fully protected
in relying upon, an Opinion of Counsel stating that the execution of such
supplemental indenture is authorized or permitted by this Indenture, complies
with its terms and will, upon the execution and delivery thereof, be valid and
binding upon the Company in accordance with its terms. The Trustee may, but
shall not be obligated to, enter into any such supplemental indenture which
affects the Trustee's own rights, duties or immunities under this Indenture or
otherwise.

SECTION 9.04. EFFECT OF SUPPLEMENTAL INDENTURES.

        Upon the execution of any supplemental indenture under this Article,
this Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Securities theretofore or thereafter authenticated and delivered hereunder
shall be bound thereby.

SECTION 9.05. CONFORMITY WITH TRUST INDENTURE ACT.

        Every supplemental indenture executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act.

SECTION 9.06. REFERENCE IN SECURITIES TO SUPPLEMENTAL INDENTURES.

        Securities authenticated and delivered after the execution of any
supplemental indenture pursuant to this Article may, and shall if required by
the Trustee, bear a notation in form approved by the Trustee as to any matter
provided for in such supplemental indenture. If the Company shall so determine,
new Securities so modified as to conform, in the judgment of the Trustee and the
Company, to any such supplemental indenture may be prepared and executed by the
Company and authenticated and delivered by the Trustee in exchange for
Outstanding Securities.



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<PAGE>   53

                              ARTICLE X. COVENANTS

SECTION 10.01. PAYMENT OF PRINCIPAL, PREMIUM AND INTEREST.

        The Company will duly and punctually pay the principal of (and premium,
if any) and interest on the Securities in accordance with the terms of the
Securities and this Indenture.

SECTION 10.02. MAINTENANCE OF OFFICE OR AGENCY.

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

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

SECTION 10.03. MONEY FOR SECURITY PAYMENTS TO BE HELD IN TRUST.

        If the Company shall at any time act as its own Paying Agent, it will,
on or before each due date of the principal of (and premium, if any) or interest
on any of the Securities, segregate and hold in trust for the benefit of the
Persons entitled thereto a sum sufficient to pay the principal (and premium, if
any) or interest so becoming due until such sums shall be paid to such Persons
or otherwise disposed of as herein provided and will promptly notify the Trustee
of its action or failure so to act.

        Whenever the Company shall have one or more Paying Agents, it will,
prior to each due date of the principal of (and premium, if any) or interest on
any Securities, deposit with a Paying Agent a sum sufficient to pay such amount,
such sum to be held in trust for the benefit of the Persons entitled to such
principal, premium, if any, or interest, and (unless such Paying Agent is the
Trustee) the Company will promptly notify the Trustee of its action or failure
so to act.

        The Company will cause each Paying Agent other than the Trustee to
execute and deliver to the Trustee an instrument in which such Paying Agent
shall agree with the Trustee, subject to the provisions of this Section 10.03,
that such Paying Agent will

                (1) hold all sums held by it for the payment of the principal
of, premium, if any, or interest on Securities in trust for the benefit of the
Persons entitled thereto until such sums shall be paid to such Persons or
otherwise disposed of as herein provided;

                (2) give the Trustee notice of any default by the Company (or
any other obligor upon the Securities) in the making of any payment of
principal, premium, if any, or interest; and



                                      -48-
<PAGE>   54

                (3) at any time during the continuance of any such default, upon
the written request of the Trustee, forthwith pay to the Trustee all sums so
held in trust by such Paying Agent.

The Company may at any time, for the purpose of obtaining the satisfaction and
discharge of this Indenture or for any other purpose, pay, or by Company Order
direct any Paying Agent to pay, to the Trustee all sums held in trust by the
Company or such Paying Agent, such sums to be held by the Trustee upon the same
trusts as those upon which such sums were held by the Company or such Paying
Agent; and, upon such payment by any Paying Agent to the Trustee, such Paying
Agent shall be released from all further liability with respect to such money.

        Any money deposited with the Trustee or any Paying Agent, or then held
by the Company, in trust for the payment of the principal of (and premium, if
any) or interest on any Security and remaining unclaimed for two years after
such principal (and premium, if any) or interest has become due and payable
shall be paid to the Company on Company Request, or (if then held by the
Company) shall be discharged from such trust; and the Holder of such Security
shall thereafter, as an unsecured general creditor, look only to the Company for
payment thereof, and all liability of the Trustee or such Paying Agent with
respect to such trust money, and all liability of the Company as trustee
thereof, shall thereupon cease; provided, however, that the Trustee or such
Paying Agent, before being required to make any such repayment, may at the
expense of the Company cause to be published once, in a newspaper published in
the English language, customarily published on each Business Day and of general
circulation in the Borough of Manhattan, The City of New York, notice that such
money remains unclaimed and that, after a date specified therein, which shall
not be less than 30 days from the date of such publication, any unclaimed
balance of such money then remaining will be repaid to the Company.

SECTION 10.04. STATEMENT BY OFFICERS AS TO DEFAULT.

        The Company will deliver to the Trustee, within 120 days after the end
of each fiscal year of the Company ending after the date hereof, an Officers'
Certificate, stating whether or not to the best knowledge of the signers thereof
the Company is in default in the performance and observance of any of the terms,
provisions and conditions of this Indenture (without regard to any period of
grace or requirement of notice provided hereunder) and, if the Company shall be
in default, specifying all such defaults and the nature and status thereof of
which they may have knowledge.

SECTION 10.05. EXISTENCE.

        Subject to Article VIII, the Company will do or cause to be done all
things necessary to preserve and keep in full force and effect its existence,
rights (charter and statutory) and franchises; provided, however, that the
Company shall not be required to preserve any such right or franchise if the
Board of Directors shall determine that the preservation thereof is no longer
desirable in the conduct of the business of the Company and that the loss
thereof is not disadvantageous in any material respect to the Holders.

SECTION 10.06. MAINTENANCE OF PROPERTIES.

        The Company will cause all properties used or useful in the conduct of
its business or the business of any Subsidiary to be maintained and kept in good
condition, repair and working order and supplied with all necessary equipment
and will cause to be made all necessary repairs, renewals, replacements,
betterments and improvements thereof, all as in the judgment of the Company may
be necessary so that the business carried on in connection therewith may be
properly and advantageously conducted at all times; provided, however, that
nothing in this Section shall prevent the Company from discontinuing the
operation or maintenance of any of such properties, or disposing of any of them,
if such discontinuance or disposition is, in the judgment of the Company,
desirable in the conduct of its business or the business of any Subsidiary and
not disadvantageous in any material respect to the Holders.



                                      -49-
<PAGE>   55

SECTION 10.07. PAYMENT OF TAXES AND OTHER CLAIMS.

        The Company will pay or discharge or cause to be paid or discharged,
before the same shall become delinquent, (1) all taxes, assessments and
governmental charges levied or imposed upon the Company or any Subsidiary or
upon the income, profits or property of the Company or any Subsidiary, and (2)
all lawful claims for labor, materials and supplies which, if unpaid, might by
law become a lien upon the property of the Company or any Subsidiary; provided,
however, that the Company shall not be required to pay or discharge or cause to
be paid or discharged any such tax, assessment, charge or claim whose amount,
applicability or validity is being contested in good faith by appropriate
proceedings.

SECTION 10.08. WAIVER OF CERTAIN COVENANTS.

        The Company may omit in any particular instance to comply with any
covenant or condition set forth in Sections 10.05 to 10.07, inclusive, if before
the time for such compliance the Holders of at least a majority in principal
amount of the Outstanding Securities shall, by Act of such Holders, either waive
such compliance in such instance or generally waive compliance with such
covenant or condition, but no such waiver shall extend to or affect such
covenant or condition except to the extent so expressly waived, and, until such
waiver shall become effective, the obligations of the Company and the duties of
the Trustee in respect of any such covenant or condition shall remain in full
force and effect.

                      ARTICLE XI. REDEMPTION OF SECURITIES

SECTION 11.01. RIGHT OF REDEMPTION.

        The Securities may be redeemed at the election of the Company, as a
whole or from time to time in part, at any time on or after March 12, 2002, at
the Redemption Prices specified in the form of Security hereinbefore set forth,
together with accrued interest to the Redemption Date.

SECTION 11.02. APPLICABILITY OF ARTICLE.

        Redemption of Securities at the election of the Company or otherwise, as
permitted or required by any provision of this Indenture, shall be made in
accordance with such provision and this Article XI.

SECTION 11.03. ELECTION TO REDEEM; NOTICE TO TRUSTEE.

        The election of the Company to redeem any Securities pursuant to Section
11.01 shall be evidenced by a Board Resolution. In case of any redemption at the
election of the Company, the Company shall, at least 60 days prior to the
Redemption Date fixed by the Company (unless a shorter notice shall be
satisfactory to the Trustee), notify the Trustee of such Redemption Date and of
the principal amount of Securities to be redeemed.

SECTION 11.04. SELECTION BY TRUSTEE OF SECURITIES TO BE REDEEMED.

        If less than all the Securities are to be redeemed, the particular
Securities to be redeemed shall be selected not less than 20 days or more than
60 days prior to the Redemption Date by the Trustee, from the Outstanding
Securities not previously called for redemption, by such method as the Trustee
shall deem fair and appropriate in the circumstances and which may provide for
the selection for redemption of portions (equal to U.S.$1,000 or any integral
multiple thereof) of the principal amount of Securities of a denomination larger
than U.S.$1,000.

        If any Security selected for partial redemption is converted in part
before termination of the conversion right with respect to the portion of the
Security so selected, the converted portion of such Security shall be deemed (so
far as may be) to be the portion selected for redemption. Securities which have
been converted during a selection of Securities to be redeemed shall be treated
by the Trustee as Outstanding for the purpose of such selection.



                                      -50-
<PAGE>   56

        The Trustee shall promptly notify the Company and each Security
Registrar in writing of the Securities selected for redemption and, in the case
of any Securities selected for partial redemption, the principal amount thereof
to be redeemed.

        For all purposes of this Indenture, unless the context otherwise
requires, all provisions relating to the redemption of Securities shall relate,
in the case of any Securities redeemed or to be redeemed only in part, to the
portion of the principal amount of such Securities which has been or is to be
redeemed.

SECTION 11.05. NOTICE OF REDEMPTION.

        Notice of redemption shall be given by first-class mail, postage
prepaid, mailed not less than 20 or more than 60 days prior to the Redemption
Date, to each Holder of Securities to be redeemed, at his address appearing in
the Security Register.

        All notices of redemption shall state:

                (1) the Redemption Date,

                (2) the Redemption Price,

                (3) if less than all the Outstanding Securities are to be
redeemed, the identification (and, in the case of partial redemption of any
Securities, the principal amounts) of the particular Securities to be redeemed,

                (4) that on the Redemption Date the Redemption Price will become
due and payable upon each such Security to be redeemed and that interest thereon
will cease to accrue on and after said date,

                (5) the conversion price, the date on which the right to convert
the Securities to be redeemed will terminate and the place or places where such
Securities may be surrendered for conversion, and

                (6) the place or places where such Securities are to be
surrendered for payment of the Redemption Price. Notice of redemption of
Securities to be redeemed at the election of the Company shall be given by the
Company or, at the Company's request, by the Trustee in the name and at the
expense of the Company, and shall be irrevocable.

SECTION 11.06. DEPOSIT OF REDEMPTION PRICE.

        On or prior to any Redemption Date, the Company shall deposit with the
Trustee or with a Paying Agent (or, if the Company is acting as its own Paying
Agent, segregate and hold in trust as provided in Section 10.03) an amount of
money sufficient to pay the Redemption Price of, and (except if the Redemption
Date shall be an Interest Payment Date) accrued interest on, all the Securities
which are to be redeemed on that date other than any Securities called for
redemption on that date which have been converted prior to the date of such
deposit.

        If any Security called for redemption is converted, any money deposited
with the Trustee or with any Paying Agent or so segregated and held in trust for
the redemption of such Security shall (subject to any right of the Holder of
such Security or any Predecessor Security to receive interest as provided in the
last paragraph of Section 3.07) be paid to the Company upon Company Request or,
if then held by the Company, shall be released from such trust.

SECTION 11.07. SECURITIES PAYABLE ON REDEMPTION DATE.

        Notice of redemption having been given as aforesaid, the Securities so
to be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Company shall default in the payment of the Redemption Price and accrued
interest) such Securities shall 



                                      -51-
<PAGE>   57

cease to bear or accrue any interest. Upon surrender of any such Security for
redemption in accordance with said notice, such Security shall be paid by the
Company at the Redemption Price, together with accrued interest to (but not
including) the Redemption Date; provided, however, that installments of interest
whose Stated Maturity is on or prior to the Redemption Date shall be payable to
the Holders of such Securities, or one or more Predecessor Securities,
registered as such at the close of business on the relevant record dates
according to their terms and the provisions of Section 3.07.

        If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal (and premium, if any) shall,
until paid, bear and accrue interest from the Redemption Date at the rate borne
by the Security.

SECTION 11.08. SECURITIES REDEEMED IN PART.

        Any Security which is to be redeemed only in part shall be surrendered
at an office or agency of the Company designated for that purpose pursuant to
Section 10.02 (with, if the Company or the Trustee so requires, due endorsement
by, or a written instrument of transfer in form satisfactory to the Company and
the Trustee duly executed by, the Holder thereof or his attorney-in-fact duly
authorized in writing), and the Company shall execute, and the Trustee shall
authenticate and deliver to the Holder of such Security without service charge,
a new Security or Securities, of any authorized denomination as requested by
such Holder, in aggregate principal amount equal to and in exchange for the
unredeemed portion of the principal amount of the Security so surrendered.

SECTION 11.09. CONVERSION ARRANGEMENT ON CALL FOR REDEMPTION.

        In connection with any redemption of Securities, the Company may arrange
for the purchase and conversion of any Securities by an agreement with one or
more investment bankers or other purchasers to purchase such Securities by
paying to the Trustee in trust for the Holders, on or before the Redemption
Date, an amount not less than the applicable Redemption Price, together with
interest accrued to the Redemption Date, of such Securities. Notwithstanding
anything to the contrary contained in this Article XI, the obligation of the
Company to pay the Redemption Price of such Securities, together with interest
accrued to, but excluding, the date fixed for redemption, shall be deemed to be
satisfied and discharged to the extent such amount is so paid by such
purchasers. If such an agreement is entered into, a copy of which will be filed
with the Trustee prior to the Redemption Date, any Securities not duly
surrendered for conversion by the holders thereof may, at the option of the
Company, be deemed, to the fullest extent permitted by law, acquired by such
purchasers from such holders and (notwithstanding anything to the contrary
contained in Article XIII) surrendered by such purchasers for conversion, all as
of immediately prior to the close of business on the Redemption Date (and the
right to convert any such Securities shall be deemed to have been extended
through such time), subject to payment of the above amount as aforesaid. At the
direction of the Company, the Trustee shall hold and dispose of any such amount
paid to it in the same manner as it would monies deposited with it by the
Company for the redemption of Securities. Without the Trustee's prior written
consent, no arrangement between the Company and such purchasers for the purchase
and conversion of any Securities shall increase or otherwise affect any of the
powers, duties, responsibilities or obligations of the Trustee as set forth in
this Indenture, and the Company agrees to indemnify the Trustee from, and hold
it harmless against, any loss, liability or expense arising out of or in
connection with any such arrangement for the purchase and conversion of any
Securities between the Company and such purchasers to which the Trustee has not
consented in writing, including the costs and expenses incurred by the Trustee
in the defense of any claim or liability arising out of or in connection with
the exercise or performance of any of its powers, duties, responsibilities or
obligations under this Indenture. Nothing in the preceding sentence shall be
deemed to limit the rights and protections afforded to the Trustee in Article
VI, including, but not limited to, the right to indemnification pursuant to
Section 6.07.



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<PAGE>   58

                    ARTICLE XII. SUBORDINATION OF SECURITIES

SECTION 12.01. SECURITIES SUBORDINATE TO SENIOR INDEBTEDNESS.

        The Company covenants and agrees, and each Holder of a Security, by his
acceptance thereof, likewise covenants and agrees, that, to the extent and in
the manner hereinafter set forth in this Article XII, the indebtedness
represented by the Securities and the payment of the principal of (and premium,
if any) and interest on each and all of the Securities and all obligations of
the Company under this Indenture are hereby expressly made subordinate and
subject in right of payment to the prior payment in full of all Senior
Indebtedness.

SECTION 12.02. PAYMENT OVER OF PROCEEDS UPON DISSOLUTION, ETC.

        In the event of (a) any insolvency or bankruptcy case or proceeding, or
any receivership, liquidation, reorganization or other similar case or
proceeding in connection therewith, relative to the Company or to its creditors,
as such, or to its assets, or (b) any liquidation, dissolution or other winding
up of the Company, whether voluntary or involuntary and whether or not involving
insolvency or bankruptcy, or (c) any assignment for the benefit of creditors or
any other marshalling of assets and liabilities of the Company, then and in any
such event the holders of Senior Indebtedness shall be entitled to receive
payment in full of all amounts due or to become due on or in respect of all
Senior Indebtedness, or provision shall be made for such payment in cash or cash
equivalents or otherwise in a manner satisfactory to the holders of Senior
Indebtedness, before the Holders of the Securities are entitled to receive any
payment on account of principal of (or premium, if any) or interest on the
Securities, and to that end the holders of Senior Indebtedness shall be entitled
to receive, for application to the payment thereof, any payment or distribution
of any kind or character, whether in cash, property or securities, which may be
payable or deliverable in respect of the Securities in any such case,
proceeding, dissolution, liquidation or other winding up or event.

        In the event that, notwithstanding the foregoing provisions of this
Section, the Trustee or the Holder of any Security shall have received any
payment or distribution of assets of the Company prohibited by the foregoing
paragraph of any kind or character, whether in cash, property or securities,
before all Senior Indebtedness is paid in full or payment thereof provided for,
and if such fact shall, at or prior to the time of such payment or distribution,
have been made actually known to a Responsible Officer of the Trustee or, as the
case may be, such Holder, then and in such event such payment or distribution
shall be paid over or delivered forthwith to the trustee in bankruptcy,
receiver, liquidating trustee, custodian, assignee, agent or other Person making
payment or distribution of assets of the Company for application to the payment
of all Senior Indebtedness remaining unpaid, to the extent necessary to pay all
Senior Indebtedness in full, after giving effect to any concurrent payment or
distribution to or for the holders of Senior Indebtedness.

        For purposes of this Article XII only, the words "cash, property or
securities" shall not be deemed to include shares of capital stock of the
Company as reorganized or readjusted, or securities of the Company or any other
corporation provided for by a plan of reorganization or readjustment which in
either case are subordinated in right of payment to all Senior Indebtedness
which may at the time be outstanding to substantially the same extent as, or to
a greater extent than, the Securities are so subordinated as provided in this
Article XII. The consolidation of the Company with, or the merger of the Company
into, another Person or the liquidation or dissolution of the Company following
the conveyance or transfer of its properties and assets substantially as an
entirety to another Person upon the terms and conditions set forth in Article
VIII shall not be deemed a dissolution, winding up, liquidation, reorganization,
assignment for the benefit of creditors or marshalling of assets and liabilities
of the Company for the purposes of this Section 12.02 if the Person formed by
such consolidation or into which the Company is merged or which acquires by
conveyance or transfer such properties and assets substantially as an entirety,
as the case may be, shall, as a part of such consolidation, merger, conveyance
or transfer, comply with the conditions set forth in Article VIII.



                                      -53-
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SECTION 12.03. NO PAYMENT WHEN SENIOR INDEBTEDNESS IN DEFAULT.

        (a) In the event and during the continuation of any default in the
payment of principal of (or premium, if any) or interest on any Senior
Indebtedness beyond any applicable grace period with respect thereto (unless and
until such payment default shall have been cured or waived in writing by the
holders of such Senior Indebtedness); or

        (b) in the event any judicial proceeding shall be pending with respect
to any such default, then no payment shall be made by the Company on account of
principal of (or premium, if any) or interest on the Securities or on account of
the purchase or other acquisition of Securities (including pursuant to Articles
XI and XIII).

        In the event that, notwithstanding the foregoing, the Company shall make
any payment to the Trustee or the Holder of any Security prohibited by the
foregoing provisions of this Section 12.03, and if such fact shall, at or prior
to the time of such payment, have been made actually known to a Responsible
Officer of the Trustee or, as the case may be, such Holder, then and in such
event such payment shall be paid over and delivered forthwith to the Company.

        The provisions of this Section 12.03 shall not apply to any payment with
respect to which Section 12.02 would be applicable.

SECTION 12.04. PAYMENT PERMITTED IF NO DEFAULT.

        Nothing contained in this Article XII or elsewhere in this Indenture or
in any of the Securities shall prevent (a) the Company, at any time except
during the pendency of any case, proceeding, dissolution, liquidation or other
winding up, assignment for the benefit of creditors or other marshalling of
assets and liabilities of the Company referred to in Section 12.02 or under the
conditions described in Section 12.03, from making payments at any time of
principal of (and premium, if any) or interest on the Securities, or (b) the
application by the Trustee of any money deposited with it hereunder to the
payment of or on account of the principal of (and premium, if any) or interest
on the Securities or the retention of such payment by the Holders, if, at the
time of such application by the Trustee, a Responsible Officer of the Trustee
did not have actual knowledge that such payment would have been prohibited by
the provisions of this Article XII.

SECTION 12.05. SUBROGATION TO RIGHTS OF HOLDERS OF SENIOR INDEBTEDNESS.

        Subject to the payment in full of all Senior Indebtedness, and until the
Securities are paid in full, the Holders of the Securities shall be subrogated
(equally and ratably with the holders of all indebtedness of the Company which
by its express terms is subordinated to indebtedness of the Company to
substantially the same extent as the Securities are subordinated and is entitled
to like rights of subrogation) to the rights of the holders of such Senior
Indebtedness to receive payments and distributions of cash, property and
securities applicable to the Senior Indebtedness to the extent that payments and
distributions otherwise payable to Holders of Securities have been applied to
the payment of Senior Indebtedness as provided by this Article XII. For purposes
of such subrogation, no payments or distributions to the holders of the Senior
Indebtedness of any cash, property or securities to which the Holders of the
Securities or the Trustee would be entitled, except for the provisions of this
Article XII, and no payments over pursuant to the provisions of this Article XII
to the holders of Senior Indebtedness by Holders of the Securities or the
Trustee, shall, as among the Company, its creditors other than holders of Senior
Indebtedness and the Holders of the Securities, be deemed to be a payment or
distribution by the Company to or on account of the Senior Indebtedness.

SECTION 12.06. PROVISIONS SOLELY TO DEFINE RELATIVE RIGHTS.

        The provisions of this Article XII are and are intended solely for the
purpose of defining the relative rights of the Holders of the Securities on the
one hand and the holders of Senior Indebtedness on the other hand. Nothing
contained in this Article XII or elsewhere in this Indenture or in the
Securities is intended to or shall (a) impair, as among the Company, its
creditors other than holders of Senior Indebtedness and the Holders of the
Securities, the 



                                      -54-
<PAGE>   60

obligation of the Company, which is absolute and unconditional (and which,
subject to the rights under this Article XII of the holders of Senior
Indebtedness, is intended to rank equally with all other general obligations of
the Company), to pay to the Holders of the Securities the principal of (and
premium, if any) and interest on the Securities as and when the same shall
become due and payable in accordance with their terms; or (b) affect the
relative rights against the Company of the Holders of the Securities and
creditors of the Company other than the holders of Senior Indebtedness; or (c)
prevent the Trustee or the Holder of any Security from exercising all remedies
otherwise permitted by applicable law upon default under this Indenture, subject
to the rights, if any, under this Article XII of the holders of Senior
Indebtedness to receive cash, property and securities otherwise payable or
deliverable to the Trustee or such Holder.

SECTION 12.07. TRUSTEE TO EFFECTUATE SUBORDINATION.

        Each holder of a Security by his acceptance thereof authorizes and
directs the Trustee on his behalf to take such action as may be necessary or
appropriate to effectuate the subordination provided in this Article XII and
appoints the Trustee his attorney-in-fact for any and all such purposes.

SECTION 12.08. NO WAIVER OF SUBORDINATION PROVISIONS.

        No right of any present or future holder of any Senior Indebtedness to
enforce subordination as herein provided shall at any time in any way be
prejudiced or impaired by any act or failure to act on the part of the Company
or by any act or failure to act, in good faith, by any such holder, or by any
non-compliance by the Company with the terms, provisions and covenants of this
Indenture, regardless of any knowledge thereof any such holder may have or be
otherwise charged with.

        Without in any way limiting the generality of the foregoing paragraph,
the holders of Senior Indebtedness may, at any time and from time to time,
without the consent of or notice to the Trustee or the Holders of the
Securities, without incurring responsibility to the Holders of the Securities
and without impairing or releasing the subordination provided in this Article
XII or the obligations hereunder of the Holders of the Securities to the holders
of Senior Indebtedness, do any one or more of the following: (i) change the
manner, place or terms of payment or extend the time of payment of, or renew or
alter, Senior Indebtedness, or otherwise amend or supplement in any manner
Senior Indebtedness or any instrument evidencing the same or any agreement under
which Senior Indebtedness is outstanding; (ii) sell, exchange, release or
otherwise deal with any property pledged, mortgaged or otherwise securing Senior
Indebtedness; (iii) release any Person liable in any manner for the collection
of Senior Indebtedness; (iv) exercise or refrain from exercising any rights
against the Company and any other Person; or (v) apply any and all sums received
from time to time to the Senior Indebtedness.

SECTION 12.09. NOTICE TO TRUSTEE.

        The Company shall give prompt written notice to the Trustee of any fact
known to the Company which would prohibit the making of any payment to or by the
Trustee in respect of the Securities. Notwithstanding the provisions of this
Article XII or any other provision of this Indenture, the Trustee shall not be
charged with knowledge of the existence of any facts which would prohibit the
making of any payment to or by the Trustee in respect of the Securities, unless
and until the Trustee shall have received written notice thereof from the
Company or a holder of Senior Indebtedness or from any trustee therefor; and,
prior to the receipt of any such written notice, the Trustee, subject to the
provisions of Section 6.01, shall be entitled in all respects to assume that no
such facts exist; provided, however, that if the Trustee shall not have received
the notice provided for in this Section 12.09 at least two Business Days prior
to the date upon which by the terms hereof any money may become payable for any
purpose (including, without limitation, the payment of the principal of (and
premium, if any) or interest on any Security), then, anything herein contained
to the contrary notwithstanding, the Trustee shall have full power and authority
to receive such money and to apply the same to the purpose for which such money
was received and shall not be affected by any notice to the contrary which may
be received by it within two Business Days prior to such date.



                                      -55-
<PAGE>   61

        Subject to the provisions of Section 6.01, the Trustee shall be entitled
to rely on the delivery to it of a written notice by a Person representing
himself to be a holder of Senior Indebtedness (or a trustee therefor) to
establish that such notice has been given by a holder of Senior Indebtedness (or
a trustee therefor). In the event that the Trustee determines in good faith that
further evidence is required with respect to the right of any Person as a holder
of Senior Indebtedness to participate in any payment or distribution pursuant to
this Article XII, the Trustee may request such Person to furnish evidence to the
reasonable satisfaction of the Trustee as to the amount of Senior Indebtedness
held by such Person, the extent to which such Person is entitled to participate
in such payment or distribution and any other facts pertinent to the rights of
such Person under this Article XII, and if such evidence is not furnished, the
Trustee may defer any payment to such Person pending judicial determination as
to the right of such Person to receive such payment.

SECTION 12.10. RELIANCE ON JUDICIAL ORDER OR CERTIFICATE OF LIQUIDATING AGENT.

        Upon any payment or distribution of assets of the Company referred to in
this Article XII, the Trustee, subject to the provisions of Section 6.01, and
the Holders of the Securities shall be entitled to rely upon any order or decree
entered by any court of competent jurisdiction in which such insolvency,
bankruptcy, receivership, liquidation, reorganization, dissolution, winding up
or similar case or proceeding is pending, or a certificate of the trustee in
bankruptcy, receiver, liquidating trustee, custodian, assignee for the benefit
of creditors, agent or other Person making such payment or distribution,
delivered to the Trustee or to the Holders of Securities, for the purpose of
ascertaining the Persons entitled to participate in such payment or
distribution, the holders of the Senior Indebtedness and other indebtedness of
the Company, the amount thereof or payable thereon, the amount or amounts paid
or distributed thereon and all other facts pertinent thereto or to this Article
XII.

SECTION 12.11. TRUSTEE NOT FIDUCIARY FOR HOLDERS OF SENIOR INDEBTEDNESS.

        The Trustee shall not be deemed to owe any fiduciary duty to the holders
of Senior Indebtedness and shall not be liable to any such holders if it shall
in good faith mistakenly pay over or distribute to Holders of Securities or to
the Company or to any other Person cash, property or securities to which any
holders of Senior Indebtedness shall be entitled by virtue of this Article XII
or otherwise.

SECTION 12.12. RIGHTS OF TRUSTEE AS HOLDER OF SENIOR INDEBTEDNESS; PRESERVATION
               OF TRUSTEE'S RIGHTS.

        The Trustee in its individual capacity shall be entitled to all the
rights set forth in this Article XII with respect to any Senior Indebtedness
which may at any time be held by it, to the same extent as any other holder of
Senior Indebtedness, and nothing in this Indenture shall deprive the Trustee of
any of its rights as such holder.

        Nothing in this Article XII shall apply to claims of, or payments to,
the Trustee under or pursuant to Section 6.07.

SECTION 12.13. ARTICLE APPLICABLE TO PAYING AGENTS.

        In case at any time any Paying Agent other than the Trustee shall have
been appointed by the Company and be then acting hereunder, the term "Trustee"
as used in this Article XII shall in such case (unless the context otherwise
requires) be construed as extending to and including such Paying Agent within
its meaning as fully for all intents and purposes as if such Paying Agent were
named in this Article XII in addition to or in place of the Trustee; provided,
however, that Section 12.12 shall not apply to the Company or any Affiliate of
the Company if it or such Affiliate acts as Paying Agent.



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SECTION 12.14. CERTAIN CONVERSIONS DEEMED PAYMENT.

        For the purposes of this Article XII only, (1) the issuance and delivery
of junior securities upon conversion of Securities in accordance with Article
XIII shall not be deemed to constitute a payment or distribution on account of
the principal of or premium or interest on Securities or on account of the
purchase or other acquisition of Securities, and (2) the payment, issuance or
delivery of cash, property or securities (other than junior securities) upon
conversion of a Security shall be deemed to constitute payment on account of the
principal of such Security. For the purposes of this Section 12.14, the term
"junior securities" means (a) shares of any stock of any class of the Company
and (b) securities of the Company which are subordinated in right of payment to
the prior payment in full of all Senior Indebtedness which may be outstanding at
the time of issuance or delivery of such securities to substantially the same
extent as, or to a greater extent than, the Securities are so subordinated as
provided in this Article XII. Nothing contained in this Article XII or elsewhere
in this Indenture or in the Securities is intended to or shall impair, as among
the Company, its creditors other than holders of Senior Indebtedness and the
Holders of the Securities, the right, which is absolute and unconditional, of
the Holder of any Security to convert such Security in accordance with Article
XIII.

                     ARTICLE XIII. CONVERSION OF SECURITIES

SECTION 13.01. CONVERSION PRIVILEGE AND CONVERSION PRICE.

        Subject to and upon compliance with the provisions of this Article XIII,
at the option of the Holder thereof, any Security or any portion of the
principal amount thereof which is U.S.$1,000 or an integral multiple of
U.S.$1,000 may be converted at the principal amount thereof, or of such portion
thereof, into fully paid and nonassessable shares of Common Stock of the Company
at any time at the conversion price, determined as hereinafter provided, in
effect at the time of conversion. Such conversion right shall expire at the
close of business on the Business Day immediately preceding March 31, 2004,
subject, in the case of conversion of any Global Security, to any Applicable
Procedures. In case a Security or portion thereof is called for redemption at
the election of the Company or the Holder thereof exercised his right to require
the Company to repurchase the Security, such conversion right in respect of the
Security or portion so called shall expire at the close of business, New York
time, on the Business Day immediately preceding the corresponding Redemption
Date or Repurchase Date, as the case may be, unless the Company defaults in
making the payment due upon redemption or repurchase, as the case may be (in
each case subject as aforesaid to any Applicable Procedures with respect to any
Global Security).

        The price at which shares of Common Stock shall be delivered upon
conversion (herein called the "conversion price") shall be initially U.S.$9.65
per share of Common Stock. The conversion price shall be adjusted in certain
instances as provided in Section 13.04.

        In case the Company shall, by dividend or otherwise, declare or make a
distribution on its Common Stock referred to in paragraph (4) or (5) of Section
13.04 (including, without limitation, dividends or distributions referred to in
the last sentence of paragraph (4) of Section 13.04), the Holder of each
Security, upon the conversion thereof pursuant to this Article XIII subsequent
to the close of business on the date fixed for the determination of shareholders
entitled to receive such distribution and prior to the effectiveness of the
conversion price adjustment in respect of such distribution pursuant to
paragraph (4) or (5) of Section 13.04, shall also be entitled to receive for
each share of Common Stock into which such Security is converted, the portion of
the evidences of indebtedness, shares of capital stock, securities, cash and
assets so distributed applicable to one share of Common Stock, provided that, at
the election of the Company (whose election shall be evidenced by a Board
Resolution) with respect to all Holders so converting, the Company may, in lieu
of distributing to such Holder any portion of such distribution not consisting
of cash or securities of the Company, pay such Holder an amount in cash equal to
the fair market value thereof (as determined in good faith by the Board of
Directors, whose determination shall be conclusive and described in a Board
Resolution). If any conversion of a Security described in the immediately
preceding sentence occurs prior to the payment date for a distribution to
holders of Common Stock which the Holder of the Security so converted is
entitled to receive in accordance with the immediately preceding sentence, the
Company may elect (such election to be 



                                      -57-
<PAGE>   63

evidenced by a Board Resolution) to distribute to such Holder a due bill for the
evidences of indebtedness, shares of capital stock, securities, cash or assets
to which such Holder is so entitled, provided that such due bill (i) meets any
applicable requirements of the principal national securities exchange or other
market on which the Common Stock is then traded and (ii) requires payment or
delivery of such evidences of indebtedness, shares of capital stock, securities,
cash or assets no later than the date of payment or delivery thereof to holders
of Common Stock receiving such distribution.

SECTION 13.02. EXERCISE OF CONVERSION PRIVILEGE.

        In order to exercise the conversion privilege, the Holder of any
Security to be converted shall surrender such Security, duly endorsed or
assigned to the Company or in blank, at any office or agency maintained by the
Company pursuant to Section 10.02, accompanied by

                (a) written notice (as set forth in Section 2.05) to the Company
at such office or agency that the Holder elects to convert such Security or, if
less than the entire principal amount thereof is to be converted, the portion
thereof to be converted and

                (b) if shares or any portion of such Security not to be
converted are to be issued in the name of a Person other than the Holder
thereof, and the restrictions on transfer of such Security set forth in the
first paragraph of Section 2.02 remain in effect, a certification of the Holder
as to compliance with such restrictions (as set forth in Section 2.06).

        If the restrictions on transfer of a Security set forth in the first
paragraph of Section 2.02 remain in effect, all shares of Common Stock delivered
upon conversion thereof shall bear a restrictive legend substantially in the
form of such paragraph.

        Except as described in the last paragraph of Section 3.07, no Holder of
Securities will be entitled upon conversion thereof to any payment or adjustment
on account of accrued and unpaid interest thereon (although such accrued and
unpaid interest will be deemed paid by the appropriate portion of the Common
Stock received by the holders upon such conversion) or on account of dividends
on the shares of Common Stock issued in connection therewith. Securities
surrendered for conversion during the period from the close of business on any
Regular Record Date to the opening of business on the corresponding Interest
Payment Date (except Securities called for redemption on a Redemption Date
within such period between and including such Regular Record Date and such
Interest Payment Date) must be accompanied by payment to the Company in New York
Clearing House Funds or other funds acceptable to the Company of an amount equal
to the interest payable on such Interest Payment Date on the principal amount
converted.

        Securities shall be deemed to have been converted immediately prior to
the close of business on the day of surrender of such Securities for conversion
in accordance with the foregoing provisions, and at such time the rights of the
Holders of such Securities as Holders shall cease, and the Person or Persons
entitled to receive the Common Stock issuable upon conversion shall be treated
for all purposes as the record holder or holders of such Common Stock at such
time. As promptly as practicable on or after the conversion date, the Company
shall issue and shall deliver at such office or agency a certificate or
certificates for the number of full shares of Common Stock issuable upon
conversion, together with payment in lieu of any fraction of a share as provided
in Section 13.03.

        In the case of any Security which is converted in part only, upon such
conversion the Company shall execute and the Trustee shall authenticate and
deliver to the Holder thereof, at the expense of the Company, a new Security or
Securities of authorized denominations in aggregate principal amount equal to
the unconverted portion of the principal amount of such Security. Any
requirements for notice, surrender or delivery of Securities pursuant to this
Article XIII shall, with respect to any Global Security, be subject to any
Applicable Procedures.



                                      -58-
<PAGE>   64

SECTION 13.03. FRACTIONS OF SHARES.

        No fractional shares of Common Stock shall be issued upon conversion of
Securities. If more than one Security shall be surrendered for conversion at one
time by the same Holder, the number of full shares which shall be issuable upon
conversion thereof shall be computed on the basis of the aggregate principal
amount of the Securities (or specified portions thereof) so surrendered. Instead
of any fractional share of Common Stock which would otherwise be issuable upon
conversion of any Security or Securities (or specified portions thereof), the
Company shall pay a cash adjustment in respect of such fraction in an amount
equal to the same fraction of the Closing Price per share of the Common Stock at
the close of business on the day of conversion (or, if such day is not a Trading
Day, on the Trading Day immediately preceding such day) or, alternatively, the
Company shall round up to the next higher whole share.

SECTION 13.04. ADJUSTMENT OF CONVERSION PRICE.

        (1) In case the Company shall pay or make a dividend or other
distribution on its Common Stock exclusively in Common Stock or shall pay or
make a dividend or other distribution on any other class of capital stock of the
Company which dividend or distribution includes Common Stock, the conversion
price in effect at the opening of business on the day next following the date
fixed for the determination of shareholders entitled to receive such dividend or
other distribution shall be reduced by multiplying such conversion price by a
fraction of which the numerator shall be the number of shares of Common Stock
outstanding at the close of business on the date fixed for such determination
and the denominator shall be the sum of such number of shares and the total
number of shares constituting such dividend or other distribution, such
reduction to become effective immediately after the opening of business on the
day next following the date fixed for such determination. For the purposes of
this paragraph (1), the number of shares of Common Stock at any time outstanding
shall not include shares held in the treasury of the Company but shall include
shares issuable in respect of scrip certificates issued in lieu of fractions of
shares of Common Stock. The Company shall not pay any dividend or make any
distribution on shares of Common Stock held in the treasury of the Company.

        (2) In case the Company shall pay or make a dividend or other
distribution on its Common Stock consisting exclusively of, or shall otherwise
issue to all holders of its Common Stock, rights, warrants or options entitling
the holders thereof to subscribe for or purchase shares of Common Stock at a
price per share less than the current market price per share (determined as
provided in paragraph (7) of this Section 13.04) of the Common Stock on the date
fixed for the determination of shareholders entitled to receive such rights,
warrants or options, the conversion price in effect at the opening of business
on the day following the date fixed for such determination shall be reduced by
multiplying such conversion price by a fraction of which the numerator shall be
the number of shares of Common Stock outstanding at the close of business on the
date fixed for such determination plus the number of shares of Common Stock
which the aggregate of the offering price of the total number of shares of
Common Stock so offered for subscription or purchase would purchase at such
current market price and the denominator shall be the number of shares of Common
Stock outstanding at the close of business on the date fixed for such
determination plus the number of shares of Common Stock so offered for
subscription or purchase, such reduction to become effective immediately after
the opening of business on the day following the date fixed for such
determination. For the purposes of this paragraph (2), the number of shares of
Common Stock at any time outstanding shall not include shares held in the
treasury of the Company but shall include shares issuable in respect of scrip
certificates issued in lieu of fractions of shares of Common Stock. The Company
shall not issue any rights, warrants or options in respect of shares of Common
Stock held in the treasury of the Company.

        (3) In case outstanding shares of Common Stock shall be subdivided into
a greater number of shares of Common Stock, the conversion price in effect at
the opening of business on the day following the day upon which such subdivision
becomes effective shall be proportionately reduced, and, conversely, in case
outstanding shares of Common Stock shall each be combined into a smaller number
of shares of Common Stock, the conversion price in effect at the opening of
business on the day following the day upon which such combination becomes
effective shall 



                                      -59-
<PAGE>   65

be proportionately increased, such reduction or increase, as the case may be, to
become effective immediately after the opening of business on the day following
the day upon which such subdivision or combination becomes effective.

        (4) Subject to the last sentence of this paragraph (4), in case the
Company shall, by dividend or otherwise, distribute to all holders of its Common
Stock evidences of its indebtedness, shares of any class of capital stock,
securities, cash or property (excluding any rights, warrants or options referred
to in paragraph (2) of this Section 13.04, any dividend or distribution paid
exclusively in cash and any dividend or distribution referred to in paragraph
(1) of this Section 13.04), the conversion price shall be reduced so that the
same shall equal the price determined by multiplying the conversion price in
effect immediately prior to the effectiveness of the conversion price reduction
contemplated by this paragraph (4) by a fraction of which the numerator shall be
the current market price per share (determined as provided in paragraph (7) of
this Section 13.04) of the Common Stock on the date of such effectiveness less
the fair market value (as determined in good faith by the Board of Directors,
whose determination shall be conclusive and described in a Board Resolution and
shall, in the case of securities being distributed for which prior thereto there
is an actual or when issued trading market, be no less than the value determined
by reference to the average of the closing prices in such market over the period
specified in the succeeding sentence), on the date of such effectiveness, of the
portion of the evidences of indebtedness, shares of capital stock, securities,
cash and property so distributed applicable to one share of Common Stock and the
denominator shall be such current market price per share of the Common Stock,
such reduction to become effective immediately prior to the opening of business
on the day next following the later of (a) the date fixed for the payment of
such distribution and (b) the date 20 days after the notice relating to such
distribution is given pursuant to Section 13.06(a) (such later date of (a) and
(b) being referred to as the "Reference Date"). If the Board of Directors
determines the fair market value of any distribution for purposes of this
paragraph (4) by reference to the actual or when issued trading market for any
securities comprising such distribution, it must in doing so consider the prices
in such market over the same period used in computing the current market price
per share pursuant to paragraph (7) of this Section. For purposes of this
paragraph (4), any dividend or distribution that includes shares of Common Stock
or rights, warrants or options to subscribe for or purchase shares of Common
Stock shall be deemed instead to be (a) a dividend or distribution of the
evidences of indebtedness, cash, property, shares of capital stock or securities
other than such shares of Common Stock or such rights, warrants or options
(making any conversion price reduction required by this paragraph (4))
immediately followed by (b) a dividend or distribution of such shares of Common
Stock or such rights, warrants or options (making any further conversion price
reduction required by paragraph (1) or (2) of this Section 13.04, except (i) the
Reference Date of such dividend or distribution as defined in this paragraph (4)
shall be substituted as "the date fixed for the determination of shareholders
entitled to receive such dividend or other distribution," "the date fixed for
the determination of shareholders entitled to receive such rights, warrants or
options" and "the date fixed for such determination" within the meaning of
paragraphs (1) and (2) of this Section 13.04 and (ii) any shares of Common Stock
included in such dividend or distribution shall not be deemed "outstanding at
the close of business on the date fixed for such determination" within the
meaning of paragraph (1) of this Section 13.04).

        (5) In case the Company shall, by dividend or otherwise, make a
distribution to all holders of its Common Stock exclusively in cash in an
aggregate amount that, together with (i) the aggregate amount of any other
distributions to all holders of its Common Stock made exclusively in cash within
the 12 months preceding the date of payment of such distribution and in respect
of which no conversion price adjustment pursuant to this paragraph (5) has been
made and (ii) the aggregate of any cash plus the fair market value (as
determined in good faith by the Board of Directors, whose determination shall be
conclusive and described in a Board Resolution), as of the expiration of the
tender or exchange offer referred to below, of consideration payable in respect
of any tender or exchange offer by the Company or a Subsidiary for all or any
portion of the Common Stock concluded within the 12 months preceding the date of
payment of such distribution and in respect of which no conversion price
adjustment pursuant to paragraph (6) of this Section 13.04 has been made,
exceeds 10% of the product of the current market price per share (determined as
provided in paragraph (7) of this Section 13.04) of the Common Stock on the date
fixed for shareholders entitled to receive such distribution times the number of
shares of Common Stock outstanding on such date, the conversion price shall be
reduced so that the same shall equal the price determined by multiplying the
conversion price in effect immediately prior to the effectiveness of the
conversion price reduction contemplated by 



                                      -60-
<PAGE>   66

this paragraph (5) by a fraction of which the numerator shall be the current
market price per share (determined as provided in paragraph (7) of this Section
13.04) of the Common Stock on the date of such effectiveness less the amount of
cash so distributed applicable to one share of Common Stock and the denominator
shall be such current market price per share of the Common Stock, such reduction
to become effective immediately prior to the opening of business on the later of
(a) the day following the date fixed for the payment of such distribution and
(b) the date 20 days after the notice relating to such distribution is given
pursuant to Section 13.06(a).

        (6) In case a tender or exchange offer made by the Company or any
Subsidiary for all or any portion of the Common Stock shall expire and such
tender or exchange offer shall involve an aggregate consideration having a fair
market value (as determined in good faith by the Board of Directors, whose
determination shall be conclusive and described in a Board Resolution) at the
last time (the "Expiration Time") tenders or exchanges may be made pursuant to
such tender or exchange offer (as it may be amended) that, together with (i) the
aggregate of the cash plus the fair market value (as determined in good faith by
the Board of Directors, whose determination shall be conclusive and described in
a Board Resolution), as of the expiration of the other tender or exchange offer
referred to below, of consideration payable in respect of any other tender or
exchange offer by the Company or a Subsidiary for all or any portion of the
Common Stock concluded within the preceding 12 months and in respect of which no
conversion price adjustment pursuant to this paragraph (6) has been made and
(ii) the aggregate amount of any distributions to all holders of the Common
Stock made exclusively in cash within the preceding 12 months and in respect of
which no conversion price adjustment pursuant to paragraph (5) of this Section
13.04 has been made, exceeds 10% of the product of the current market price per
share (determined as provided in paragraph (7) of this Section 13.04) of the
Common Stock on the Expiration Time times the number of shares of Common Stock
outstanding (including any tendered shares) on the Expiration Time, the
conversion price shall be reduced (but not increased) so that the same shall
equal the price determined by multiplying the conversion price in effect
immediately prior to the Expiration Time by a fraction of which the numerator
shall be (i) the product of the current market price per share (determined as
provided in paragraph (7) of this Section 13.04) of the Common Stock at the
Expiration Time times the number of shares of Common Stock outstanding
(including any tendered or exchanged shares) at the Expiration Time minus (ii)
the fair market value (determined as aforesaid) of the aggregate consideration
payable to shareholders based on the acceptance (up to any maximum specified in
the terms of the tender or exchange offer) of all shares validly tendered or
exchanged and not withdrawn as of the Expiration Time (the shares deemed so
accepted, up to any such maximum, being referred to as the "Purchased Shares")
and the denominator shall be the product of (i) such current market price per
share at the Expiration Time times (ii) such number of outstanding shares at the
Expiration Time less the number of Purchased Shares, such reduction to become
effective immediately prior to the opening of business on the day following the
Expiration Time.

        (7) For the purpose of any computation under this paragraph and
paragraphs (2), (4) and (5) of this Section 13.04, the current market price per
share of Common Stock on any date in question shall be deemed to be the average
of the daily Closing Prices for the five consecutive Trading Days selected by
the Company commencing not more than 20 Trading Days before, and ending not
later than, the date in question; provided, however, that (i) if the "ex" date
(as hereinafter defined) for any event (other than the issuance or distribution
requiring such computation) that requires an adjustment to the conversion price
pursuant to paragraph (1), (2), (3), (4), (5) or (6) above ("Other Event")
occurs on or after the 20th Trading Day prior to the date in question and prior
to the "ex" date for the issuance or distribution requiring such computation
(the "Current Event"), the Closing Price for each Trading Day prior to the "ex"
date for such Other Event shall be adjusted by multiplying such Closing Price by
the same fraction by which the conversion price is so required to be adjusted as
a result of such Other Event, (ii) if the "ex" date for any Other Event occurs
after the "ex" date for the Current Event and on or prior to the date in
question, the Closing Price for each Trading Day on and after the "ex" date for
such Other Event shall be adjusted by multiplying such Closing Price by the
reciprocal of the fraction by which the conversion price is so required to be
adjusted as a result of such Other Event, (iii) if the "ex" date for any Other
Event occurs on the "ex" date for the Current Event, one of those events shall
be deemed for purposes of clauses (i) and (ii) of this proviso to have an "ex"
date occurring prior to the "ex" date for the other event, and (iv) if the "ex"
date for the Current Event is on or prior to the date in question, after taking
into account any adjustment required pursuant to clause (ii) of this proviso,
the Closing Price for each 



                                      -61-
<PAGE>   67
Trading Day on or after such "ex" date shall be adjusted by adding thereto the
amount of any cash and the fair market value on the date in question (as
determined in good faith by the Board of Directors in a manner consistent with
any determination of such value for purposes of paragraph (4) or (5) of this
Section 13.04, whose determination shall be conclusive and described in a Board
Resolution) of the portion of the rights, warrants, options, evidences of
indebtedness, shares of capital stock, securities, cash or property being
distributed applicable to one share of Common Stock. For the purpose of any
computation under paragraph (6) of this Section 13.04, the current market price
per share of Common Stock on any date in question shall be deemed to be the
average of the daily Closing Prices for the five consecutive Trading Days
selected by the Company commencing on or after the latest (the "Commencement
Date") of (i) the date 20 Trading Days before the date in question, (ii) the
date of commencement of the tender or exchange offer requiring such computation
and (iii) the date of the last amendment, if any, of such tender or exchange
offer involving a change in the maximum number of shares for which tenders are
sought or a change in the consideration offered, and ending not later than the
date of the Expiration Time of such tender or exchange offer (or, if such
Expiration Time occurs before the close of trading on a Trading Day, not later
than the Trading Day immediately preceding the date of such Expiration Time);
provided, however, that if the "ex" date for any Other Event (other than the
tender or exchange offer requiring such computation) occurs on or after the
Commencement Date and on or prior to the date of the Expiration Time for the
tender or exchange offer requiring such computation, the Closing Price for each
Trading Day prior to the "ex" date for such Other Event shall be adjusted by
multiplying such Closing Price by the same fraction by which the conversion
price is so required to be adjusted as a result of such other event. For
purposes of this paragraph, the term "ex" date, (i) when used with respect to
any issuance or distribution, means the first date on which the Common Stock
trades regular way on the relevant exchange or in the relevant market from which
the Closing Price was obtained without the right to receive such issuance or
distribution, (ii) when used with respect to any subdivision or combination of
shares of Common Stock, means the first date on which the Common Stock trades
regular way on such exchange or in such market after the time at which such
subdivision or combination becomes effective, and (iii) when used with respect
to any tender or exchange offer means the first date on which the Common Stock
trades regular way on such exchange or in such market after the Expiration Time
of such tender or exchange offer.

        (8) The Company may make such reductions in the conversion price, in
addition to those required by paragraphs (1), (2), (3), (4), (5) and (6) of this
Section 13.04, as it considers to be advisable in order that any event treated
for Federal income tax purposes as a dividend of stock or stock rights shall not
be taxable to the recipients.

        (9) No adjustment in the conversion price shall be required unless such
adjustment would require an increase or decrease of at least 1% in the
conversion price; provided, however, that any adjustments which by reason of
this paragraph (9) are not required to be made shall be carried forward and
taken into account in any subsequent adjustment.

        (10) In the event that the Company distributes rights or warrants (other
than those referred to in paragraph (2) above) pro rata to holders of Common
Stock, so long as any such rights or warrants have not expired or been redeemed
by the Company, the Company shall make proper provision so that the Holder of
any Security surrendered for conversion will be entitled to receive upon such
conversion, in addition to the conversion shares, a number of rights and
warrants to be determined as follows: (i) if such conversion occurs on or prior
to the date for the distribution to the holders of rights or warrants of
separate certificates evidencing such rights or warrants (the "Distribution
Date"), the same number of rights or warrants to which a holder of a number of
shares of Common Stock equal to the number of conversion shares is entitled at
the time of such conversion in accordance with the terms and provisions of and
applicable to the rights or warrants, and (ii) if such conversion occurs after
such Distribution Date, the same number of rights or warrants to which a holder
of the number of shares of Common Stock into which the principal amount of such
Security so converted was convertible immediately prior to such Distribution
Date would have been entitled on such Distribution Date in accordance with the
terms and provisions of and applicable to the rights or warrants.



                                      -62-
<PAGE>   68

SECTION 13.05. NOTICE OF ADJUSTMENTS OF CONVERSION PRICE.

        Whenever the conversion price is adjusted as herein provided:

                (a) the Company shall compute the adjusted conversion price in
accordance with Section 13.04 and shall prepare a certificate signed by the
Treasurer of the Company setting forth the adjusted conversion price and showing
in reasonable detail the facts upon which such adjustment is based, and such
certificate shall forthwith be filed (with a copy to the Trustee) at each office
or agency maintained for the purpose of conversion of Securities pursuant to
Section 10.02; and

                (b) a notice stating that the conversion price has been adjusted
and setting forth the adjusted conversion price shall forthwith be required, and
as soon as practicable after it is required, such notice shall be mailed by the
Company to all Holders at their last addresses as they shall appear in the
Security Register.

SECTION 13.06. NOTICE OF CERTAIN CORPORATE ACTION.

        In case:

                (a) the Company shall declare a dividend (or any other
distribution) on its Common Stock payable (i) otherwise than exclusively in cash
or (ii) exclusively in cash in an amount that would require a conversion price
adjustment pursuant to paragraph (5) of Section 13.04; or

                (b) the Company shall authorize the granting to the holders of
its Common Stock of rights, warrants or options to subscribe for or purchase any
shares of capital stock of any class or of any other rights (excluding employee
stock options); or

                (c) of any reclassification of the Common Stock of the Company
(other than a subdivision or combination of its outstanding shares of Common
Stock), or of any consolidation or merger to which the Company is a party and
for which approval of any shareholders of the Company is required, or of the
sale or transfer of all or substantially all of the assets of the Company; or

                (d) of the voluntary or involuntary dissolution, liquidation or
winding up of the Company; or

                (e) the Company or any Subsidiary of the Company shall commence
a tender or exchange offer for all or a portion of the Company's outstanding
shares of Common Stock (or shall amend any such tender or exchange offer);

then the Company shall cause to be filed at each office or agency maintained for
the purpose of conversion of Securities pursuant to Section 10.02, and shall
cause to be mailed to all Holders at their last addresses as they shall appear
in the Security Register, at least 20 days (or 10 days in any case specified in
clause (a) or (b) above) prior to the applicable record, effective or expiration
date hereinafter specified, a notice stating (x) the date on which a record is
to be taken for the purpose of such dividend, distribution or granting of
rights, warrants or options, or, if a record is not to be taken, the date as of
which the holders of Common Stock of record to be entitled to such dividend,
distribution, rights, warrants or options are to be determined, or (y) the date
on which such reclassification, consolidation, merger, sale, transfer,
dissolution, liquidation or winding up is expected to become effective, and the
date as of which it is expected that holders of Common Stock of record shall be
entitled to exchange their shares of Common Stock for securities, cash or other
property deliverable upon such reclassification, consolidation, merger, sale,
transfer, dissolution, liquidation or winding up, or (z) the date on which such
tender offer commenced, the date on which such tender offer is scheduled to
expire unless extended, the consideration offered and the other material terms
thereof (or the material terms of any amendment thereto).



                                      -63-
<PAGE>   69

SECTION 13.07. COMPANY TO RESERVE COMMON STOCK.

        The Company shall at all times reserve and keep available, free from
preemptive rights, out of its authorized but unissued Common Stock, solely for
the purpose of effecting the conversion of Securities, the whole number of
shares of Common Stock then issuable upon the conversion in full of all
outstanding Securities.

SECTION 13.08. TAXES ON CONVERSIONS.

        The Company will pay any and all taxes that may be payable in respect of
the issue or delivery of shares of Common Stock on conversion of Securities
pursuant hereto. The Company shall not, however, be required to pay any tax
which may be payable in respect of any transfer involved in the issue and
delivery of shares of Common Stock in a name other than that of the Holder of
the Security or Securities to be converted, and no such issue or delivery shall
be made unless and until the Person requesting such issue has paid to the
Company the amount of any such tax, or has established to the satisfaction of
the Company that such tax has been paid.

SECTION 13.09. COVENANT AS TO COMMON STOCK.

        The Company covenants that all shares of Common Stock which may be
issued upon conversion of Securities will upon issue be newly issued (and not
treasury shares) and be duly authorized, validly issued, fully paid and
nonassessable and, except as provided in Section 13.08, the Company will pay all
taxes, liens and charges with respect to the issue thereof.

SECTION 13.10. CANCELLATION OF CONVERTED SECURITIES.

        All Securities delivered for conversion shall be delivered to the
Trustee to be canceled by or at the direction of the Trustee, which shall
dispose of the same as provided in Section 3.09.

SECTION 13.11. PROVISIONS IN CASE OF RECLASSIFICATION, CONSOLIDATION, MERGER OR
               SALE OF ASSETS.

        In the event that the Company shall be a party to any transaction
(including without limitation any (i) recapitalization or reclassification of
the Common Stock (other than a change in par value, or from par value to no par
value, or from no par value to par value, or as a result of a subdivision or
combination of the Common Stock), (ii) any consolidation of the Company with, or
merger of the Company into, any other person, any merger of another person into
the Company (other than a merger which does not result in a reclassification,
conversion, exchange or cancellation of outstanding shares of Common Stock of
the Company), (iii) any sale or transfer of all or substantially all of the
assets of the Company, or (iv) any compulsory share exchange) pursuant to which
the Common Stock is converted into the right to receive other securities, cash
or other property, then lawful provision shall be made as part of the terms of
such transaction whereby the Holder of each Security then outstanding shall have
the right thereafter to convert such Security only into (subject to funds being
legally available for such purpose under applicable law at the time of such
conversion) the kind and amount of securities, cash and other property
receivable upon such transaction by a holder of the number of shares of Common
Stock into which such Security might have been converted immediately prior to
such transaction. The Company or the person formed by such consolidation or
resulting from such merger or which acquired such assets or which acquired the
Company's shares, as the case may be, shall execute and deliver to the Trustee a
supplemental indenture establishing such rights. Such supplemental indenture
shall provide for adjustments which, for events subsequent to the effective date
of such supplemental indenture, shall be as nearly equivalent as may be
practicable to the adjustments provided for in this Article. The above
provisions of this Section 13.11 shall similarly apply to successive
transactions of the foregoing type.



                                      -64-
<PAGE>   70

                    ARTICLE XIV. RIGHT TO REQUIRE REPURCHASE

SECTION 14.01. RIGHT TO REQUIRE REPURCHASE.

        In the event that there shall occur a Change in Control (as defined in
Section 14.06), then each Holder shall have the right, at such Holder's option,
to require the Company, subject to the provisions of Section 12.03, to purchase
all or any designated part of such Holder's Securities on the date (the
"Repurchase Date") fixed by the Company that is not less than 30 days or more
than 45 days after the date the Company gives notice of the Change in Control as
contemplated in Section 14.02(a) at a price (the "Repurchase Price") equal to
100% of the principal amount thereof, together with accrued and unpaid interest
through the Repurchase Date. Such right to require the repurchase of Securities
shall not continue after a discharge of the Company from its obligations with
respect to the Securities in accordance with Article IV. Any requirements for
notice, surrender or delivery of Securities pursuant to this Article XIV shall,
with respect to any Global Security, be subject to any Applicable Procedures.

SECTION 14.02. NOTICE; METHOD OF EXERCISING REPURCHASE RIGHT.

                (a) On or before the 15th day after the Company knows or
reasonably should know a Change in Control has occurred, the Company, or at the
written request of the Company, the Trustee (in the name and at the expense of
the Company), shall give notice of the occurrence of the Change in Control and
of the repurchase right set forth herein arising as a result thereof by
first-class mail, postage prepaid, or by telefacsimile with written
acknowledgement of transmittal to each Holder of the Securities at such Holder's
address appearing in the Security Register. The Company shall also deliver a
copy of such notice of a repurchase right to the Trustee.

        Each notice of a repurchase right shall state:

                (1) the Repurchase Date,

                (2) the date by which the repurchase right must be exercised,

                (3) the Repurchase Price, and

                (4) the instructions a Holder must follow to exercise its
repurchase right.

        No failure of the Company to give the foregoing notice shall limit any
Holder's right to exercise a repurchase right. The Trustee shall have no
affirmative obligation to determine if there shall have occurred a Change in
Control.

                (b) To exercise a repurchase right, a Holder shall deliver to
the Company (or an agent designated by the Company for such purpose in the
notice referred to in (a) above) and to the Trustee on or before the 30th day
after the date of transmittal of the notice referred to in (a) above (i) written
notice of the Holder's exercise of such right, which notice shall set forth the
name of the Holder, the principal amount of the Security or Securities (or
portion of a Security) to be repurchased, and a statement that an election to
exercise the repurchase right is being made thereby, and (ii) the Security or
Securities with respect to which the repurchase right is being exercised, duly
endorsed for transfer to the Company. Such written notice shall be irrevocable.
If the Repurchase Date falls between any Regular Record Date and the
corresponding succeeding Interest Payment Date, Securities to be repurchased
must be accompanied by payment from the Holder of an amount equal to the
interest thereon which the registered Holder thereof is to receive on such
Interest Payment Date.

                (c) In the event a repurchase right shall be exercised in
accordance with the terms hereof, the Company shall on the Repurchase Date pay
or cause to be paid in cash to the Holder thereof the Repurchase Price of the
Security or Securities as to which the repurchase right had been exercised.



                                      -65-
<PAGE>   71

SECTION 14.03. DEPOSIT OF REPURCHASE PRICE.

        On or prior to the Repurchase Date, the Company shall deposit with the
Trustee or with a Paying Agent (or, if the Company is acting as its own Paying
Agent, segregate and hold in trust as provided in Section 10.03) an amount of
money sufficient to pay the Repurchase Price of the Securities which are to be
repaid on the Repurchase Date.

SECTION 14.04. SECURITIES NOT REPURCHASED ON REPURCHASE DATE.

        If any Security surrendered for repurchase shall not be so paid on the
Repurchase Date, the principal of such Security shall, until paid, bear interest
from the Repurchase Date at a rate borne by such Security.

SECTION 14.05. SECURITIES REPURCHASED IN PART.

        Any Security which is to be repurchased only in part shall be
surrendered at any office or agency of the Company designated for that purpose
pursuant to Section 10.02 (with, if the Company or the Trustee so requires, due
endorsement by, or written instrument of transfer in form satisfactory to the
Company and the Trustee duly executed by, the Holder thereof or his attorney
duly authorized in writing), and the Company shall execute, and the Trustee
shall authenticate and deliver to the Holder of such Security without service
charge, a new Security or Securities of any authorized denomination as requested
by such Holder, in aggregate principal amount equal to and in exchange for the
unrepurchased portion of the principal of the Security so surrendered.

SECTION 14.06. CERTAIN DEFINITIONS.

        For purposes of this Article: The term "Beneficial Owner" shall be
determined in accordance with Rules 13d-3 and 13d-5 promulgated by the
Commission under the Exchange Act, or any successor provision thereto, except
that a Person shall be deemed to have "beneficial ownership" of all shares that
such Person has the right to acquire, whether such right is exercisable
immediately or only after the passage of time.

        A "Change in Control" shall be deemed to have occurred at such time as
(a) any Person, or any Persons acting together in a manner which would
constitute a "group" for purposes of Section 13(d) of the Exchange Act, or any
successor provision thereto, together with any Affiliates thereof, (i) become
the Beneficial Owners, directly or indirectly, of capital stock of the Company,
entitling such Person or Persons and its or their Affiliates to exercise more
than 50% of the total voting power of all classes of the Company's capital stock
entitled to vote generally in the election of directors or (ii) shall succeed in
having sufficient of its or their nominees who are not supported by a majority
of the then current Board of Directors of the Company elected to the Board of
Directors of the Company such that such nominees, when added to any existing
directors remaining on the Board of Directors of the Company after such election
who are Affiliates of or acting in concert with any such Persons, shall
constitute a majority of the Board of Directors of the Company, (b) the Company
shall be a party to any transaction pursuant to which the Common Stock is
converted into the right to receive other securities (other than common stock),
cash and/or property (or the Company, by dividend, tender or exchange offer or
otherwise, distributes other securities, cash and/or property to holders of
Common Stock) and the value of all such securities, cash and/or property
distributed in such transaction and any other transaction effected within the 12
months preceding consummation of such transaction (as determined in good faith
by the Board of Directors, whose determination shall be conclusive and described
in a Board Resolution) is more than 50% of the average of the daily Closing
Prices for the five consecutive Trading Days ending on the Trading Day
immediately preceding the date of such transaction (or, if earlier, the Trading
Day immediately preceding the "ex" date (as defined in paragraph (7) of Section
13.04) for such transaction), or (c) the Company shall consolidate with or merge
into any other Person or sell, convey, transfer or lease its properties and
assets substantially as an entirety to any Person other than a Subsidiary, or
any other Person shall consolidate with or merge into the Company (other than,
in the case of this clause (c), pursuant to any consolidation or merger where
Persons who are shareholders of the Company immediately prior thereto become the
Beneficial Owners of shares of capital 



                                      -66-
<PAGE>   72

stock of the surviving company entitling such Persons to exercise more than 50%
of the total voting power of all classes of such surviving company's capital
stock entitled to vote generally in the election of directors).

                 ARTICLE XV. DEFEASANCE AND COVENANT DEFEASANCE

SECTION 15.01. COMPANY'S OPTION TO EFFECT DEFEASANCE OR COVENANT DEFEASANCE.

        The Company may at its option by Board Resolution, at any time, elect to
have either Section 15.02 or Section 15.03 applied to the Outstanding Securities
upon compliance with the conditions set forth below in this Article XV.

SECTION 15.02. DEFEASANCE AND DISCHARGE.

        Upon the Company's exercise of the option provided in Section 15.01
applicable to this Section, the Company shall be deemed to have been discharged
from its obligations with respect to the Outstanding Securities (other than
those specified below), and the provisions of Article XII shall cease to be
effective, on the date the conditions set forth below are satisfied
(hereinafter, "defeasance"). For this purpose, such defeasance means that the
Company shall be deemed to have paid and discharged the entire indebtedness
represented by the Outstanding Securities and to have satisfied all its other
obligations under such Securities and this Indenture insofar as such Securities
are concerned (and the Trustee, at the expense of the Company, shall execute
proper instruments acknowledging the same), except for the following which shall
survive until otherwise terminated or discharged hereunder: (A) the rights of
Holders of such Securities to receive, solely from the trust fund described in
Section 15.04 and as more fully set forth in such Section, payments in respect
of the principal of, premium, if any and interest on such Securities when such
payments are due, (B) the Company's obligations with respect to such Securities
under Sections 3.04, 3.05, 3.06, 10.02, 10.03, Article XIII and Article XIV, (C)
the rights, powers, trusts, duties and immunities of the Trustee hereunder, and
(D) this Article XV. Subject to compliance with this Article XV, the Company may
exercise its option under this Section 15.02 notwithstanding the prior exercise
of its option under Section 15.03.

SECTION 15.03. COVENANT DEFEASANCE.

        Upon the Company's exercise of the option provided in Section 15.01
applicable to this Section, (i) the Company shall be released from its
obligations under Section 10.06 and Section 10.07, (ii) the occurrence of an
event specified in Section 5.01(3) (with respect to either of Section 10.06 or
Section 10.07) and 5.01(4) shall not be deemed to be an Event of Default and
(iii) the provisions of Article XII hereof shall cease to be effective on and
after the date the conditions set forth below are satisfied (hereinafter,
"covenant defeasance"). For this purpose, such covenant defeasance means that
the Company may omit to comply with and shall have no liability in respect of
any term, condition or limitation set forth in any such Section or Article,
whether directly or indirectly by reason of any reference elsewhere herein to
any such Section or Article or by reason of any reference in any such Section or
Article to any other provision herein or in any other document, but the
remainder of this Indenture and such Securities shall be unaffected thereby.

SECTION 15.04. CONDITIONS TO DEFEASANCE OR COVENANT DEFEASANCE.

        The following shall be the conditions to application of either Section
15.02 or Section 15.03 to the then Outstanding Securities:

                (1) The Company shall irrevocably have deposited or caused to be
deposited with the Trustee (or another trustee satisfying the requirements of
Section 6.09 who shall agree to comply with the provisions of this Article XV
applicable to it) as trust funds in trust for the purpose of making the
following payments, specifically pledged as security for, and dedicated solely
to, the benefit of the Holders of such Securities;



                                      -67-
<PAGE>   73

                        (A) money in an amount, or

                        (B) U.S. Government Obligations which through the
scheduled payment of principal and interest in respect thereof in accordance
with their terms will provide, not later than one day before the due date of any
payment, money in an amount, or

                        (C) a combination thereof, sufficient, in the written
opinion of a nationally recognized firm of independent public accountants
expressed in a written certification thereof delivered to the Trustee, to pay
and discharge, and which shall be applied by the Trustee (or other qualifying
trustee) to pay and discharge, the principal of, premium, if any, and each
installment of interest on the Securities on the Stated Maturity of such
principal or installment of interest in accordance with the terms of this
Indenture and of such Securities.

        For this purpose, "U.S. Government Obligations" means securities that
are (x) direct obligations of the United States for the payment of which its
full faith and credit is pledged or (y) obligations of a Person controlled or
supervised by and acting as an agency or instrumentality of the United States
the payment of which is unconditionally guaranteed as a full faith and credit
obligation by the United States, which, in either case, are not callable or
redeemable at the option of the issuer thereof, and shall also include a
depository receipt issued by a bank (as defined in Section 3(a)(2) of the
Securities Act of 1933, as amended) as custodian with respect to any such U.S.
Government Obligation or a specific payment of principal of or interest on any
such U.S. Government Obligation held by such custodian for the account of the
holder of such depository receipt, provided that (except as required by law)
such custodian is not authorized to make any deduction from the amount payable
to the holder of such depository receipt from any amount received by the
custodian in respect of the U.S. Government Obligation or the specific payment
of principal of or interest on the U.S. Government Obligation evidenced by such
depository receipt.

                (2) In the case of an election under Section 15.02, the Company
shall have delivered to the Trustee an Opinion of Counsel stating that (x) the
Company has received from, or there has been published by, the Internal Revenue
Service a ruling, or (y) since the date of this Indenture there has been a
change in the applicable Federal income tax law, in either case to the effect
that, and based thereon such opinion shall confirm that, the Holders of the
Outstanding Securities will not recognize gain or loss for Federal income tax
purposes as a result of such deposit, defeasance and discharge and will be
subject to Federal income tax on the same amount, in the same manner and at the
same times as would have been the case if such deposit, defeasance and discharge
had not occurred.

                (3) In the case of an election under Section 15.03, the Company
shall have delivered to the Trustee an Opinion of Counsel to the effect that the
Holders of the Outstanding Securities will not recognize gain or loss for
Federal income tax purposes as a result of such deposit and covenant defeasance
and will be subject to Federal income tax on the same amount, in the same manner
and at the same times as would have been the case if such deposit and covenant
defeasance had not occurred.

                (4) The Company shall have delivered to the Trustee an Officers'
Certificate to the effect that the Securities, if then listed on any securities
exchange, will not be delisted as a result of such deposit.

                (5) Such defeasance or covenant defeasance shall not cause the
Trustee to have a conflicting interest as defined in Section 6.08 and for
purposes of the Trust Indenture Act with respect to any securities of the
Company.

                (6) At the time of such deposit: (A) no default in the payment
of all or a portion of principal of (or premium, if any) or interest on or other
obligations in respect of any Senior Indebtedness shall have occurred and be
continuing, and no event of default with respect to any Senior Indebtedness
shall have occurred and be continuing and shall have resulted in such Senior
Indebtedness becoming or being declared due and payable prior to the date on
which it would otherwise have become due and payable and (B) no other event with
respect to any Senior Indebtedness shall have occurred and be continuing
permitting (after notice or the lapse of time, or both) the holders 



                                      -68-
<PAGE>   74

of such Senior Indebtedness (or a trustee on behalf of the holders thereof) to
declare such Senior Indebtedness due and payable prior to the date on which it
would otherwise have become due and payable, or, in the case of either clause
(A) or clause (B) above, each such default or event of default shall have been
cured or waived or shall have ceased to exist.

                (7) No Event of Default or event which with notice or lapse of
time or both would become an Event of Default shall have occurred and be
continuing on the date of such deposit or, insofar as Sections 5.01(6) and (7)
are concerned, at any time during the period ending on the 121st day after the
date of such deposit (it being understood that this condition shall not be
deemed satisfied until the expiration of such period).

                (8) Such defeasance or covenant defeasance shall not result in a
breach or violation of, or constitute a default under, any other agreement or
instrument to which the Company is a party or by which it is bound.

                (9) The Company shall have delivered to the Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that all conditions
precedent provided for relating to either the defeasance under Section 15.02 or
the covenant defeasance under Section 15.03 (as the case may be) have been
complied with.

                (10) Such defeasance or covenant defeasance shall not result in
the trust arising from such deposit constituting an investment company as
defined in the Investment Company Act of 1940, as amended, or such trust shall
be qualified under such act or exempt from regulation thereunder.

SECTION 15.05. DEPOSITED MONEY AND U.S. GOVERNMENT OBLIGATIONS TO BE HELD IN
               TRUST; OTHER MISCELLANEOUS PROVISIONS.

        Subject to the provisions of the last paragraph of Section 10.03, all
money and U.S. Government Obligations (including the proceeds thereof) deposited
with the Trustee (or other qualifying trustee--collectively, for purposes of
this Section 15.05, the "Trustee") pursuant to Section 15.04 in respect of the
Securities shall be held in trust and applied by the Trustee, in accordance with
the provisions of such Securities and this Indenture, to the payment, either
directly or through any Paying Agent (including the Company acting as its own
Paying Agent) as the Trustee may determine, to the Holders of such Securities,
of all sums due and to become due thereon in respect of principal, premium, if
any, and interest. Money so held in trust shall not be subject to the provisions
of Article XII.

        The Company shall pay and indemnify the Trustee against any tax, fee or
other charge imposed on or assessed against the U.S. Government Obligations
deposited pursuant to Section 15.04 or the principal and interest received in
respect thereof other than any such tax, fee or other charge which by law is for
the account of the Holders of the Outstanding Securities.

        Anything in this Article XV to the contrary notwithstanding, the Trustee
shall deliver or pay to the Company from time to time upon Company Request any
money or U.S. Government Obligations held by it as provided in Section 15.04
which, in the opinion of a nationally recognized firm of independent public
accountants expressed in a written certification thereof delivered to the
Trustee, are in excess of the amount thereof which would then be required to be
deposited to effect an equivalent defeasance or covenant defeasance.

SECTION 15.06. REINSTATEMENT.

        If the Trustee or the Paying Agent is unable to apply any money in
accordance with Section 15.02 or 15.03 by reason of any order or judgment of any
court or governmental authority enjoining, restraining or otherwise prohibiting
such application, then the Company's obligations under this Indenture and the
Securities shall be revived and reinstated as though no deposit had occurred
pursuant to this Article XV until such time as the Trustee or Paying Agent is
permitted to apply all such money in accordance with Section 15.02 or 15.03;
provided, however, that if the Company makes any payment of principal of,
premium, if any, or interest on any Security following the 



                                      -69-
<PAGE>   75

reinstatement of its obligations, the Company shall be subrogated to the rights
of the Holders of such Securities to receive such payment from the money held by
the Trustee or the Paying Agent.

                              ARTICLE XVI. IMMUNITY

SECTION 16.01. PERSONAL IMMUNITY OF INCORPORATORS, SHAREHOLDERS, DIRECTORS AND
               OFFICERS.

        No recourse for the payment of the principal of or interest on the
Securities, and no recourse under or upon any obligation, covenant or agreement
contained in this Indenture or in any indenture supplemental hereto, or in the
Securities, or because of any indebtedness evidenced thereby, shall be had
against any incorporator, or against any past, present or future shareholder,
officer or director, as such, of the Company or any successor corporation,
either directly or through the Company or any successor corporation, under any
rule of law, statute or constitutional provision or by the enforcement of any
assessment or by any legal or equitable proceeding or otherwise, all such
liability being expressly waived and released by the acceptance of the
Securities by the Holders thereof and as part of the consideration for the issue
of the Securities. Each and every Holder of the Securities, by receiving and
holding the same, agrees to the provisions of this Section 16.01 and waives and
releases any and all such recourse, claim and liability.



                                      -70-
<PAGE>   76

THIS INSTRUMENT MAY BE EXECUTED IN ANY NUMBER OF COUNTERPARTS, EACH OF WHICH SO
EXECUTED SHALL BE DEEMED TO BE AN ORIGINAL, BUT ALL SUCH COUNTERPARTS SHALL
TOGETHER CONSTITUTE BUT ONE AND THE SAME INSTRUMENT.

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

                                            ITRON, INC.,



                                            By: DAVID G. REMINGTON
                                                ----------------------------
                                            Name: David G. Remington
                                            Title:  Vice President and Chief 
                                                    Financial Officer

Attest:

By:  MARILYN R. BLAIR
   ---------------------------
Name:  MariLyn R. Blair

CHASE MANHATTAN BANK AND TRUST COMPANY, NATIONAL ASSOCIATION


By:  CHII LING LEI     
   ---------------------------
Name:   Chii Ling Lei
Title:  Assistant Vice President

Attest:


By:  CECIL D. BOBEY     
   ---------------------------
Name:  Cecil D. Bobey



                                      -71-
<PAGE>   77

STATE OF WASHINGTON          )
                             ) ss:
COUNTY OF SPOKANE            )

        On the 15th day of March, 1999, before me personally came David G.
Remington, to me known, who, being by me duly sworn, did depose and say that he
is Vice President & Chief Financial Officer of ITRON, Inc., one of the
corporations described in and which executed the foregoing instrument; that he
knows the seal of said corporation; that the seal affixed to said instrument is
such corporate seal; that it was so affixed by authority of the Board of
Directors of said corporation, and that he signed his name thereto by like
authority.

                                            CLAUDIA HERSEY
                                               ---------------------------------
                                               Notary Public




                                      -72-
<PAGE>   78

                     CALIFORNIA ALL-PURPOSE ACKNOWLEDGEMENT



STATE OF CALIFORNIA                 )
                                    )  ss:
CITY AND COUNTY OF SAN FRANCISCO    )

        On March 15, 1999, before me, Roderick T. Ordona, personally appeared,
Chii Ling Lei, personally known to me (or proved to me on the basis of
satisfactory evidence) to be the person whose name is subscribed to the within
instrument and acknowledged to me that she executed the same in her authorized
capacity, and that by her signature on the instrument the person, or the entity
upon behalf of which the person acted, executed the instrument.

                                            WITNESS my hand and official seal.



                                            RODERICK T. ORDONA       (SEAL)
                                            ------------------------------------
                                            Notary Public Signature





        OPTIONAL INFORMATION

        Title or Type of Document:  Trust Indenture


                                      -73-

<PAGE>   1
FOR IMMEDIATE RELEASE


                       ITRON COMPLETES DEBT EXCHANGE OFFER

SPOKANE, WA--March 18, 1999--Itron, Inc. (NASDAQ:ITRI), announced today that it
has completed its offer ("Exchange Offer") to exchange up to $15,840,000
principal amount of its 6 3/4% Convertible Subordinated Notes due 2004
("Exchange Notes"), for up to $22,000,000 principal amount of its 6 3/4%
Convertible Subordinated Notes due 2004 ("Original Notes").

The Exchange Offer terminated on Friday, March 12, 1999, at 5:00 p.m. New York
City time. A total of $56,730,000 aggregate principal amount of Original Notes
was validly tendered for exchange. The Company accepted $22,000,000 for
exchange, meaning that the Company accepted for exchange approximately 38.8% of
the Original Notes tendered by each noteholder on a pro rata basis. The exchange
was made on the basis of $720 principal amount of Exchange Notes for $1,000
principal amount of Original Notes. A total of $15,834,000 aggregate principal
amount of Exchange Notes was issued as of March 12, 1999, with $6,000 in cash
paid in lieu of fractional interests to tendering noteholders pursuant to the
terms of the Exchange Offer.

The Exchange Notes have the same terms and conditions as the Original Notes
except for a change in the conversion price for converting the Exchange Notes
into Common Stock to $9.65, an extension of the date before which the Company
may not call the Exchange Notes to March 12, 2002, and the removal of the
redemption premium.

The Company indicated the principal purpose of the exchange was to reduce its
long-term debt and debt service obligations. The total amount of Original Notes
and Exchange Notes now outstanding is $57,234,000, for a reduction of $6,166,000
in the amount of notes outstanding. The Company expects to report a pre-tax gain
on extinguishment of debt of approximately $5.5 million in the first quarter of
1999. The Company anticipates a reduction in 1999 interest expense of
approximately $300,000 pre-tax, which will result in slightly higher earnings
per share in 1999. The Company believes that the exchange will not be materially
dilutive to future earnings per share beyond 1999.

Itron, Inc., a leading provider to the utility industry of data acquisition and
wireless communications solutions for collecting, communicating, and analyzing
electric, gas and water usage, serves over 1,500 customers in more than 45
countries around the world. The Company is headquartered in Spokane, Washington,
and has engineering, design, and manufacturing facilities in several US
locations and subsidiaries in the United Kingdom, France, and Australia. Itron
employs approximately 1,200 people worldwide.

For more information, please contact:       Mima Scarpelli, Itron, (509)891-3565



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