Document:

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                                                                     EXHIBIT 4.1

                     INTERNATIONAL SHIPHOLDING CORPORATION

                                      AND

                              THE BANK OF NEW YORK

                                   AS TRUSTEE

                                   INDENTURE

                          DATED AS OF JANUARY 6, 2005

                  6.0% CONVERTIBLE SUBORDINATED NOTES DUE 2014

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                               TABLE OF CONTENTS

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                                                                                          PAGE
                                                                                          ----
<S>                                                                                       <C>
ARTICLE I DEFINITIONS                                                                       1
         Section 1.1   Definitions                                                          1

ARTICLE II ISSUE, DESCRIPTION, EXECUTION, REGISTRATION AND
         EXCHANGE OF NOTES                                                                  8
         Section 2.1   Designation, Amount and Issue of Notes                               9
         Section 2.2   Form of Notes                                                        9
         Section 2.3   Date and Denomination of Notes;
                       Maturity; Payments of Interest                                       9
         Section 2.4   Execution of Notes                                                  11
         Section 2.5   Exchange and Registration of Transfer of Notes                      12
         Section 2.6   Mutilated, Destroyed, Lost or Stolen Notes                          15
         Section 2.7   Temporary Notes                                                     16
         Section 2.8   Cancellation of Notes Paid, Etc.                                    16

ARTICLE III            REDEMPTION AND PURCHASE OF NOTES                                    16
         Section 3.1   Redemption of Notes at Option of the Company                        16
         Section 3.2   Optional Redemption of Notes Upon a Change in Control               17
         Section 3.3   Notice of Redemption; Selection of Notes                            17
         Section 3.4   Payment of Notes Called for Redemption by Company                   20
         Section 3.5   Reserved                                                            21
         Section 3.6   Required Purchase at Option of Holders Upon a Change in Control     21

ARTICLE IV             SUBORDINATION OF NOTES                                              26
         Section 4.1   Agreement of Subordination                                          26
         Section 4.2   Payments to Noteholders                                             27
         Section 4.3   Subrogation of Notes                                                29
         Section 4.4   Authorization by Noteholders                                        30
         Section 4.5   Notice to Trustee                                                   30
         Section 4.6   Trustee's Relation to Senior Indebtedness                           31
         Section 4.7   No Impairment of Subordination                                      31
         Section 4.8   Certain Conversions Not Deemed Payment                              31
         Section 4.9   Article Applicable to Paying Agents                                 32
         Section 4.10  Senior Indebtedness Entitled to Rely                                32

ARTICLE V              PARTICULAR COVENANTS OF THE COMPANY                                 32
         Section 5.1   Payment of Principal, Premium and Interest                          32
         Section 5.2   Maintenance of Office or Agency                                     32
         Section 5.3   Appointments to Fill Vacancies in Trustee's Office                  33
         Section 5.4   Provisions as to Paying Agent                                       33
         Section 5.5   Existence                                                           34
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<S>                                                                                        <C>
         Section 5.6   Restriction as to Dividends                                         34
         Section 5.7   Stay, Extension and Usury Laws                                      34
         Section 5.8   Compliance Certificate                                              35
         Section 5.9   Further Instruments and Acts                                        35

ARTICLE VI             NOTEHOLDERS' LISTS AND REPORTS
                       BY THE COMPANY AND THE TRUSTEE                                      35
         Section 6.1   Noteholders' Lists                                                  35
         Section 6.2   Preservation and Disclosure of Lists                                36
         Section 6.3   Reports by Trustee                                                  36
         Section 6.4   Reports by Company                                                  36

ARTICLE VII            DEFAULTS AND REMEDIES                                               37
         Section 7.1   Events of Default                                                   37
         Section 7.2   Payments of Notes on Default; Suit Therefor                         39
         Section 7.3   Application of Monies Collected by Trustee                          41
         Section 7.4   Proceedings by Noteholder                                           41
         Section 7.5   Proceedings by Trustee                                              42
         Section 7.6   Remedies Cumulative and Continuing                                  42
         Section 7.7   Direction of Proceedings and Waiver of Defaults by
                       Majority of Noteholders                                             42
         Section 7.8   Notice of Defaults                                                  43
         Section 7.9   Undertaking to Pay Costs                                            43
         Section 7.10  Delay or Omission Not Waiver                                        44

ARTICLE VIII           CONCERNING THE TRUSTEE                                              44
         Section 8.1   Duties and Responsibilities of Trustee                              44
         Section 8.2   Reliance on Documents, Opinions, Etc.                               45
         Section 8.3   Trustee's Disclaimer                                                46
         Section 8.4   Trustee, Paying Agents, Conversion Agents or
                       Registrar May Own Notes                                             46
         Section 8.5   Monies to Be Held in Trust                                          46
         Section 8.6   Compensation and Expenses of Trustee                                46
         Section 8.7   Officers' Certificate as Evidence                                   47
         Section 8.8   Conflicting Interests of Trustee                                    47
         Section 8.9   Eligibility of Trustee                                              47
         Section 8.10  Resignation or Removal of Trustee                                   48
         Section 8.11  Acceptance by Successor Trustee                                     49
         Section 8.12  Succession by Merger, Etc.                                          49
         Section 8.13  Limitation on Rights of Trustee as Creditor                         50

ARTICLE IX             CONCERNING THE NOTEHOLDERS                                          50
         Section 9.1   Action by Noteholders                                               50
         Section 9.2   Proof of Execution by Noteholders                                   50
         Section 9.3   Who Are Deemed Absolute Owners                                      51
         Section 9.4   Company-Owned Notes Disregarded                                     51
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<TABLE>
<S>                                                                                        <C>
         Section 9.5   Revocation of Consents; Future Holders Bound                        51

ARTICLE X              NOTEHOLDERS' MEETINGS                                               52
         Section 10.1  Purpose of Meetings                                                 52
         Section 10.2  Call of Meetings by Trustee                                         52
         Section 10.3  Call of Meetings by Company or Noteholders                          53
         Section 10.4  Qualifications for Voting                                           53
         Section 10.5  Regulations                                                         53
         Section 10.6  Voting                                                              53
         Section 10.7  No Delay of Rights by Meeting                                       54

ARTICLE XI             SUPPLEMENTAL INDENTURES                                             54
         Section 11.1  Supplemental Indentures Without Consent of Noteholders              54
         Section 11.2  Supplemental Indentures with Consent of Noteholders                 55
         Section 11.3  Effect of Supplemental Indentures                                   56
         Section 11.4  Notation on Notes                                                   57
         Section 11.5  Evidence of Compliance of Supplemental
                       Indenture to Be Furnished Trustee                                   57

ARTICLE XII            MERGER, SALE OR CONSOLIDATION                                       57
         Section 12.1  Limitation on Merger, Sale or Consolidation                         57
         Section 12.2  Successor Corporation to Be Substituted                             57

ARTICLE XIII           SATISFACTION AND DISCHARGE OF INDENTURE                             58
         Section 13.1  Discharge of Indenture                                              58
         Section 13.2  Deposited Monies to Be Held in Trust by Trustee                     59
         Section 13.3  Paying Agent to Repay Monies Held                                   59
         Section 13.4  Return of Unclaimed Monies                                          59
         Section 13.5  Reinstatement                                                       59

ARTICLE XIV            IMMUNITY OF INCORPORATORS, STOCKHOLDERS,
                       OFFICERS AND DIRECTORS                                              60
         Section 14.1  Indenture and Notes Solely Corporate Obligations                    60

ARTICLE XV             CONVERSION OF NOTES                                                 60
         Section 15.1  Holder's Right to Convert                                           60
         Section 15.2  Exercise of Conversion Right; Issuance of Common
                       Stock on Conversion; No Adjustment for Interest or Dividends        60
         Section 15.3  Cash Payments in Lieu of Fractional Shares                          62
         Section 15.4  Conversion Price                                                    62
         Section 15.5  Adjustment of Conversion Price                                      62
         Section 15.6  Reclassification, Consolidation, Merger or Sale                     70
         Section 15.7  Taxes on Shares Issued                                              71
         Section 15.8  Reservation of Shares; Shares to Be Fully Paid;
                       Listing of Common Stock                                             72
         Section 15.9  Responsibility of Trustee                                           73
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<S>                                                                                        <C>
         Section 15.10 Notice to Holders Prior to Certain Actions                          73

ARTICLE XVI            MISCELLANEOUS PROVISIONS                                            74
         Section 16.1  Provisions Binding on Company's Successors                          74
         Section 16.2  Official Acts by Successor Corporation                              74
         Section 16.3  Addresses for Notices, Etc.                                         75
         Section 16.4  Governing Law                                                       74
         Section 16.5  Evidence of Compliance with Conditions Precedent;
                       Certificates to Trustee                                             75
         Section 16.6  Legal Holidays                                                      75
         Section 16.7  No Security Interest Created                                        75
         Section 16.8  Trust Indenture Act                                                 75
         Section 16.9  Benefits of Indenture                                               76
         Section 16.10 Table of Contents, Headings, Etc.                                   76
         Section 16.11 Authenticating Agent                                                76
         Section 16.12 Execution in Counterparts                                           77
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                             CROSS REFERENCE SHEET*

                                    Between

      Provisions of Trust Indenture Act of 1939 and Indenture, dated as of
January 6, 2005, between International Shipholding Corporation and The Bank of
New York, as Trustee, providing for the 6.0% Convertible Subordinated Notes Due
2014:

<TABLE>
<CAPTION>
                                          SECTION OF
SECTION OF THE ACT                         INDENTURE
------------------                         ---------
<S>                                     <C>
310(a)(1) and (2)                             8.9
310(a)(3) and (4)                        Inapplicable
310(b)                                      8.8 and
                                        8.10(b) and (d)
310(c)                                   Inapplicable
311(a)                                       8.13
311(b)                                       8.13
311(c)                                   Inapplicable
312(a)                                  6.1 and 6.2(a)
312(b)                                      6.2(b)
312(c)                                      6.2(c)
313(a)                                      6.3(a)
313(b)(1)                                Inapplicable
313(b)(2)                                   6.3(a)
313(c)                                      6.3(a)
313(d)                                      6.3(b)
314(a)                                        6.4
314(b)                                   Inapplicable
314(c)(1) and (2)                            16.5
314(c)(3)                                Inapplicable
314(d)                                   Inapplicable
314(e)                                       16.5
314(f)                                   Inapplicable
315(a), (c) and (d)                           8.1
315(b)                                        7.8
315(e)                                        7.9
316(a)(1)                                     7.7
316(a)(2)                                Inapplicable
316(a)(last sentence)                         9.4
316(b)                                       11.2
317(a)                                        7.2
317(b)                                   5.4 and 13.2
318(a)                                       16.8
</TABLE>

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                                   INDENTURE

      INDENTURE, dated as of January 6, 2005, between International Shipholding
Corporation, a Delaware corporation (hereinafter sometimes called the "Company,"
as more fully set forth in Section 1.1), and The Bank of New York, a state
banking corporation organized and existing under the laws of the State of New
York, as trustee (hereinafter sometimes called the "Trustee", as more fully set
forth in Section 1.1).

                                  WITNESSETH:

      WHEREAS, for its lawful corporate purposes, the Company has duly
authorized the issue of its 6.0% Convertible Subordinated Notes Due 2014
(hereinafter sometimes called the "Notes"), in an aggregate principal amount not
to exceed $44,000,000 and, to provide the terms and conditions upon which the
Notes are to be authenticated, issued and delivered, the Company has duly
authorized the execution and delivery of this Indenture; and

      WHEREAS, the Notes, the certificate of authentication to be borne by the
Notes, a form of assignment, and a form of conversion notice to be borne by the
Notes are to be substantially in the forms hereinafter provided for; and

      WHEREAS, all acts and things necessary to make the Notes, when executed by
the Company and authenticated and delivered by the Trustee or a duly authorized
authenticating agent, as in this Indenture provided, the valid, binding and
legal obligations of the Company, and to constitute these presents a valid
agreement according to its terms, have been done and performed, and the
execution of this Indenture and the issue hereunder of the Notes have in all
respects been duly authorized.

      NOW, THEREFORE, THIS INDENTURE WITNESSETH:

      That in order to declare the terms and conditions upon which the Notes are
to be authenticated, issued and delivered, and in consideration of the premises
and of the purchase and acceptance of the Notes by the holders thereof, the
Company covenants and agrees with the Trustee for the equal and proportionate
benefit of the respective holders from time to time of the Notes (except as
otherwise provided below), as follows:

                                   ARTICLE I

                                  DEFINITIONS

      SECTION 1.1 DEFINITIONS. Each of the terms defined in this Section 1.1
(except as herein otherwise expressly provided or unless the context otherwise
requires) for all purposes of this Indenture and of any indenture supplemental
hereto shall have the respective meanings specified in this Section 1.1. Each of
the terms used in this Indenture, which are defined in the Trust Indenture Act
or which are by reference therein defined in the Securities Act (except as
herein otherwise expressly provided or unless the context otherwise requires)
shall have the meanings

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assigned to such term in said Trust Indenture Act and in said Securities Act as
in force at the date of the execution of this Indenture. The words "herein,"
"hereof," "hereunder," and words of similar import refer to this Indenture as a
whole and not to any particular Article, Section or other Subdivision. The terms
defined in this Article include the plural as well as the singular.

      AFFILIATE. The term "Affiliate" of any specified person shall mean any
other person directly or indirectly controlling or controlled by or under direct
or indirect 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 or cause the direction of 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.

      AMENDED RIGHTS PLAN. The term "Amended Rights Plan" shall have the meaning
specified in Section 15.5(d).

      BENEFICIAL OWNER. The term "Beneficial Owner" means the person in whose
name a Note is recorded as beneficial owner of such Note by the Depositary, or
by any participant or indirect participant in the Depositary, as the case may
be.

      BOARD OF DIRECTORS. The term "Board of Directors" shall mean the Board of
Directors of the Company or a committee of such Board duly authorized to act for
it hereunder.

      BOARD RESOLUTION. The term "Board Resolution" shall mean 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. The term "Business Day" shall mean each Monday, Tuesday,
Wednesday, Thursday and Friday which is not a day on which the banking
institutions in The City of New York, New York or the city in which the
Corporate Trust Office is located are authorized or obligated by law or
executive order to close or be closed.

      CHANGE IN CONTROL. A "Change in Control" shall be deemed to have occurred
at the time, after the Exchange Date, (i) that any person or group of persons
(within the meaning of Sections 13(d) or 14(a) of the Exchange Act) shall have
acquired beneficial ownership (within the meaning of Rule 13d-3 promulgated by
the Commission under the Exchange Act) of 50% or more of the voting capital
stock of the Company; or (ii) within a period of twelve (12) consecutive
calendar months, individuals who were directors of the Company on the first day
of such period (together with any new directors whose election to the Board of
Directors, or whose nomination for election, was approved by a vote of a
majority of the directors then still in office who were either directors at the
beginning of such period or whose election or nomination for election was
previously so approved) shall cease to constitute a majority of the Board of
Directors.

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      CHANGE IN CONTROL PURCHASE DATE. The term "Change in Control Purchase
Date" shall have the meaning specified in Section 3.6(a).

      CHANGE IN CONTROL PURCHASE NOTICE. The term "Change in Control Purchase
Notice" shall have the meaning specified in Section 3.6(c).

      CLOSING PRICE. The term "Closing Price" shall have the meaning specified
in Section 15.5(h)(1).

      COMMISSION. The term "Commission" shall mean the Securities and Exchange
Commission.

      COMMON STOCK. The term "Common Stock" shall mean the class of capital
stock of the Company designated as Common Stock, par value $1.00 per share, at
the date hereof. Subject to the provisions of Section 15.6, shares issuable on
conversion of Notes shall include only shares of such class 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 on conversion of
Notes 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. The term "Company" shall mean International Shipholding
Corporation, a Delaware corporation and, subject to the provisions of Article
XII, shall include its successors and assigns.

      CONVERSION PRICE. The term "Conversion Price" shall have the meaning
specified in Section 15.4.

      CORPORATE TRUST OFFICE. The term "Corporate Trust Office," or other
similar term, shall mean the office of the Trustee at which at any particular
time its corporate trust business as it relates to this Indenture shall be
principally administered, which office is, at the date as of which this
Indenture is dated, located at 10161 Centurion Parkway, 2nd Floor, Jacksonville,
Florida 32256, Attention: William Cardozo (International Shipholding
Corporation, 6.0% Convertible Subordinated Notes Due 2014).

      CURRENT MARKET PRICE. The term "Current Market Price" shall have the
meaning specified in Section 15.5(h)(2).

      CUSTODIAN. The term "Custodian" shall mean The Bank of New York, as
custodian with respect to the Notes in global form, or any successor entity
thereto.

      DEFAULT. The term "default" shall mean any event that is, or after notice
or passage of time, or both, would be, an Event of Default.

                                       3
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      DEFAULTED INTEREST. The term "Defaulted Interest" shall have the meaning
specified in Section 2.3.

      DEPOSITARY. The term "Depositary" shall mean, with respect to the Notes
issuable or issued in whole or in part in global form, the person specified in
Section 2.5(d) as the Depositary with respect to such Notes, until a successor
shall have been appointed and become such pursuant to the applicable provisions
of this Indenture, and thereafter, "Depositary" shall mean or include such
successor.

      EVENT OF DEFAULT. The term "Event of Default" shall mean any event
specified in Section 7.1 continued for the period of time, if any, and after the
giving of notice, if any, therein designated.

      EXCHANGE ACT. The term "Exchange Act" shall mean the Securities Exchange
Act of 1934, as amended, and the rules and regulations promulgated thereunder.

      EXCHANGE DATE. The term "Exchange Date" shall mean the date on which the
Notes are issued in exchange for all of the outstanding shares of Preferred
Stock.

      "EX" DATE. The term "ex" date shall have the meaning specified in Section
15.5(h)(2).

      EXPIRATION TIME. The term "Expiration Time" shall have the meaning
specified in Section 15.5(f).

      FAIR MARKET VALUE. The term "fair market value" shall have the meaning
specified in Section 15.5(h)(3).

      GLOBAL NOTE. The term "Global Note" shall have the meaning specified in
Section 2.5(b).

      INDEBTEDNESS. The term "Indebtedness" shall mean, with respect to any
person, all obligations, whether or not contingent, of such person (i) (a) for
borrowed money, whether or not evidenced by a note, Note, bond, or other written
instrument, (b) evidenced by a note, Note, bond or other written instrument, (c)
under a lease required to be capitalized on the balance sheet of the lessee
under generally accepted accounting principles or under any lease or related
document (including a purchase agreement) that provides that the lessee is
contractually obligated to purchase or cause a third party to purchase and
thereby guarantee a minimum residual value of the leased property to the lessor
and the obligations of the lessee under such lease or related document to
purchase or to cause a third party to purchase such leased property, (d) in
respect of letters of credit, bank guarantees or bankers' acceptances (including
reimbursement obligations with respect to any of the foregoing), (e) with
respect to Indebtedness secured by a mortgage, pledge, lien, encumbrance, charge
or adverse claim affecting title or an encumbrance to which the property or
assets of such person are subject, whether or not the obligation secured thereby
shall have been assumed by or shall otherwise be such person's legal liability,
(f) in respect of the balance of deferred and unpaid purchase price of any
property or assets, (g) under interest rate or

                                       4
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currency swap agreements, cap, floor and collar agreements, spot and forward
contracts and similar agreements and arrangements; (ii) with respect to any
obligation of others of the type described in the preceding clause (i) or under
clause (iii) below assumed by or guaranteed in any manner by such person or in
effect guaranteed by such person through an agreement to purchase (including,
without limitation, "take or pay" and similar arrangements), contingent or
otherwise (and the obligations of such person under any such assumptions,
guarantees or other such arrangements); and (iii) any and all Indebtedness
constituting deferrals, renewals, extensions, refinancings and refundings of, or
amendments, modifications or supplements to, any of the foregoing.

      INDENTURE. The term "Indenture" shall mean this instrument as originally
executed or, if amended or supplemented as herein provided, as so amended or
supplemented.

      MATURITY DATE. The term "Maturity Date" shall mean December 31, 2014.

      NEW RIGHTS PLAN. The term "New Rights Plan" shall have the meaning
specified in Section 15.5(d).

      NON-ELECTING SHARE. The term "non-electing share" shall have the meaning
specified in Section 15.6.

      NOTE OR NOTES. The terms "Note" or "Notes" shall mean any Note or Notes,
as the case may be, authenticated and delivered under this Indenture.

      NOTEHOLDER; HOLDER. The terms "Noteholder" or "holder" as applied to any
Note, or other similar terms (but excluding the term "beneficial holder"), shall
mean any person in whose name at the time a particular Note is registered on the
Note register.

      NOTE REGISTER. The term "Note register" shall have the meaning specified
in Section 2.5.

      NOTE REGISTRAR. The term "Note registrar" shall have the meaning specified
in Section 2.5(a).

      OFFICERS' CERTIFICATE. The term "Officers' Certificate," when used with
respect to the Company, shall mean a certificate signed by (a) one of the
President, the Chief Executive Officer, Executive or Senior Vice President, any
Vice President (whether or not designated by a number or numbers or word or
words added before or after the title "Vice President") or the Chief Financial
Officer and (b) by one of the Treasurer or any Assistant Treasurer, Secretary or
any Assistant Secretary, or the Controller of the Company, which is delivered to
the Trustee. Each such certificate shall include the statements provided for in
Section 16.5 if and to the extent required by the provisions of such Section.

      OPINION OF COUNSEL. The term "Opinion of Counsel" shall mean an opinion in
writing signed by legal counsel, who may be an employee of or counsel to the
Company, or other counsel acceptable to the Trustee, which is delivered to the
Trustee. Each such opinion shall

                                       5
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include the statements provided for in Section 16.5 if and to the extent
required by the provisions of such Section.

      OUTSTANDING. The term "outstanding," when used with reference to Notes,
shall, subject to the provisions of Section 9.4, mean, as of any particular
time, all Notes authenticated and delivered by the Trustee under this Indenture,
except

            (a) Notes theretofore canceled by the Trustee or delivered to the
Trustee for cancellation;

            (b) Notes, or portions thereof, for the payment, redemption or
purchase of which monies in the necessary amount shall have been deposited in
trust pursuant hereto with the Trustee or with any paying agent (other than the
Company) or shall have been set aside and segregated in trust by the Company (if
the Company shall act as its own paying agent); provided that if such Notes are
to be redeemed prior to the maturity thereof, notice of such redemption shall
have been given as provided in Section 3.3, or provision satisfactory to the
Trustee shall have been made for giving such notice; and provided further that
if such Notes are to be purchased prior to the maturity thereof in connection
with a Change in Control, a Change in Control Purchase Notice shall have been
received as provided in Section 3.6.

            (c) Notes in lieu of which, or in substitution for which, other
Notes shall have been authenticated and delivered pursuant to the terms of
Section 2.6 unless proof satisfactory to the Trustee is presented that any such
Notes are held by bona fide holders in due course; and

            (d) Notes converted into Common Stock pursuant to Article XV and
Notes deemed not outstanding pursuant to Section 3.4 or 3.6.

      PAYMENT BLOCKAGE NOTICE. The term "Payment Blockage Notice" has the
meaning specified in Section 4.2(b).

      PERSON. The term "person" shall mean a corporation, a limited liability
company, an association, a partnership, an individual, a joint venture, a joint
stock company, a trust, an unincorporated organization or any other entity or
organization, including a government or an agency, instrumentality or political
subdivision thereof.

      PREDECESSOR NOTE. The term "Predecessor Note" of any particular Note shall
mean every previous Note evidencing all or a portion of the same debt as that
evidenced by such particular Note; and, for the purposes of this definition, any
Note authenticated and delivered under Section 2.6 in lieu of a lost, destroyed
or stolen Note shall be deemed to evidence the same debt as the lost, destroyed
or stolen Note that it replaces.

      PREFERRED STOCK. The term "Preferred Stock" shall mean the 6.0%
Convertible Exchangeable Preferred Stock of the Company.

      PURCHASED SHARES. The term "Purchased Shares" shall have the meaning
specified in Section 15.5(f).

                                       6
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      RECORD DATE. The term "Record Date" shall have the meaning specified in
Section 15.5(h)(4).

      REFERENCE PERIOD. The term "Reference Period" shall have the meaning
specified in Section 15.5(d).

      REPRESENTATIVE. The term "Representative" means the (a) indenture trustee
or other trustee, agent or representative for any Senior Indebtedness or (b)
with respect to any Senior Indebtedness that does not have any such trustee,
agent or other representative, (i) in the case of such Senior Indebtedness
issued pursuant to an agreement providing for voting arrangements as among the
holders or owners of such Senior Indebtedness, any holder or owner of such
Senior Indebtedness acting with the consent of the required persons necessary to
bind such holders or owners of such Senior Indebtedness and (ii) in the case of
all other such Senior Indebtedness, the holder or owner of such Senior
Indebtedness.

      RESPONSIBLE OFFICER. The term "Responsible Officer", when used with
respect to the Trustee, shall mean an officer of the Trustee assigned to the
Corporate Trust Office, and any officer of the Trustee to whom such matter is
referred to because of his, her or its knowledge of and familiarity with the
particular subject.

      RIGHTS PLAN. The term "Rights Plan" shall have the meaning specified in
Section 15.5(d).

      RULE 144. The term "Rule 144" shall mean Rule 144 as promulgated under the
Securities Act.

      SECURITIES. The term "Securities" shall have the meaning specified in
Section 15.5(d).

      SECURITIES ACT. The term "Securities Act" means the Securities Act of
1933, as amended, and the rules and regulations promulgated thereunder.

      SENIOR INDEBTEDNESS. The term "Senior Indebtedness" means the principal
of, premium, if any, and interest on any Indebtedness of the Company (including,
without limitation, any interest accruing after the filing of a petition by or
against the Company under any bankruptcy law, whether or not allowed as a claim
after such filing in any proceeding under such bankruptcy law), or any other
payment of Indebtedness, whether outstanding on the date of this Indenture or
thereafter created, incurred, assumed, guaranteed or in effect guaranteed by the
Company (including all deferrals, renewals, extensions or refundings of, or
amendments, modifications or supplements to the foregoing); provided, however,
that Senior Indebtedness does not include (i) Indebtedness evidenced by the
Notes, (ii) any liability for federal, state, local or other taxes owed or owing
by the Company, (iii) Indebtedness of the Company to any Subsidiary, (iv) any
trade payables of the Company incurred in the ordinary course of its business,
and (v) any indebtedness in which the instrument creating or evidencing the same
or the assumption or guarantee thereof expressly provides that such Indebtedness
shall not be senior in right of payment to, or is pari passu with, or
subordinated or junior to, the Notes.

                                       7
<PAGE>

      SUBSIDIARY. The term "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.

      TENDER EXPIRATION TIME. The term "Tender Expiration Time" shall have the
meaning specified in Section 15.5(g).

      TENDER PURCHASED SHARES. The term "Tender Purchased Shares" shall have the
meaning specified in Section 15.5(g).

      TRADING DAY. The term "Trading Day" has the meaning specified in Section
15.5(h)(5).

      TRANSFER AGENT. The term "Transfer Agent" means American Stock Transfer &
Trust Company or such other agent or agents of the Company as may be designated
by the Board of Directors as the transfer agent for the Preferred Stock.

      TRIGGER EVENT. The term "Trigger Event" shall have the meaning specified
in Section 15.5(d).

      TRUST INDENTURE ACT. The term "Trust Indenture Act" shall mean the Trust
Indenture Act of 1939, as amended, as it was in force at the date of execution
of this Indenture, except as provided in Sections 11.3 and 15.6; provided,
however, that in the event the Trust Indenture Act of 1939 is amended after the
date hereof, the term "Trust Indenture Act" shall mean, to the extent required
by such amendment, the Trust Indenture Act of 1939 as so amended.

      TRUSTEE. The term "Trustee" shall mean The Bank of New York and its
successors and any corporation resulting from or surviving any consolidation or
merger to which it or its successors may be a party and any successor trustee at
the time serving as successor trustee hereunder.

      UNDERWRITER. The term "Underwriter" shall mean Ferris, Baker Watts,
Incorporated.

                                   ARTICLE II

                  ISSUE, DESCRIPTION, EXECUTION, REGISTRATION
                             AND EXCHANGE OF NOTES

      SECTION 2.1 DESIGNATION, AMOUNT AND ISSUE OF NOTES. The Notes shall be
designated as "6.0% Convertible Subordinated Notes Due 2014." Notes not to
exceed the aggregate principal amount of $40,000,000 (or $44,000,000 if the
over-allotment option set forth in Section 1 of the Underwriting Agreement dated
December 29, 2004 (as amended from time to time by the parties thereto) by and
between the Company and the Underwriter is exercised in full) (except pursuant

                                       8
<PAGE>

to Sections 2.5, 2.6, 3.3 and 15.2) upon the execution of this Indenture, or
from time to time thereafter, may be executed by the Company and delivered to
the Trustee for authentication, and the Trustee shall thereupon authenticate and
deliver said Notes upon the written order of the Company, signed by the
Company's (a) President, Chief Executive Officer, Executive or Senior Vice
President, any Vice President (whether or not designated by a number or numbers
or word or words added before or after the title "Vice President") or Chief
Financial Officer and (b) Treasurer or Assistant Treasurer or its Secretary or
any Assistant Secretary, without any further action by the Company hereunder;
provided, however, that said Notes may not be executed, delivered or
authenticated unless and until (i) the Company may legally issue said Notes in
accordance with the Delaware General Corporation Law, as amended, and (ii) the
Trustee shall have received an Officer's Certificate and Opinion of Counsel in
accordance with Section 16.5. The Notes may only be issued upon the exchange of
all outstanding Preferred Stock.

      SECTION 2.2 FORM OF NOTES. The Notes and the Trustee's certificate of
authentication to be borne by such Notes shall be substantially in the form set
forth in Exhibit A, which is incorporated in and made a part of this Indenture.

      Any of the Notes may have such letters, numbers or other marks of
identification and such notations, legends and endorsements as the officers
executing the same may approve (execution thereof to be conclusive evidence of
such approval) and as are not inconsistent with the provisions of this
Indenture, or as may be required to comply with any law or with any rule or
regulation made pursuant thereto or with any rule or regulation of any
securities exchange or automated quotation system on which the Notes may be
listed or designated for issuance, or to conform to usage.

      Any Global Note shall represent such of the outstanding Notes as shall be
specified therein and shall provide that it shall represent the aggregate amount
of outstanding Notes from time to time endorsed thereon and that the aggregate
amount of outstanding Notes represented thereby may from time to time be
increased or reduced to reflect transfers or exchanges permitted hereby. Any
endorsement of a Global Note to reflect the amount of any increase or decrease
in the amount of outstanding Notes represented thereby shall be made by the
Trustee or the Custodian, at the direction of the Trustee, in such manner and
upon instructions given by the holder of such Notes in accordance with this
Indenture. Payment of principal of and interest and premium, if any (including
any redemption or purchase price), on any Global Note shall be made to the
holder of such Note.

      The terms and provisions contained in the form of Note attached as Exhibit
A hereto shall constitute, and are hereby expressly made, a part of this
Indenture and to the extent applicable, the Company and the Trustee, by their
execution and delivery of this Indenture, expressly agree to such terms and
provisions and to be bound thereby.

      SECTION 2.3 DATE AND DENOMINATION OF NOTES; MATURITY; PAYMENTS OF
INTEREST. The Notes shall be issuable in registered form without coupons in
denominations of $50 principal amount and integral multiples thereof equal to
the number of shares of Preferred Stock for which the Notes are exchanged. Every
Note shall be dated the date of its authentication and, except as provided in
this Section, shall bear interest at the annual rate of 6.0%, payable quarterly
on

                                       9
<PAGE>

March 31, June 30, September 30 and December 31 of each year, commencing on the
first such date after the Exchange Date, from the most recent date to which
interest has been paid or duly provided for, or if no interest has been paid or
duly provided for on the Notes, from the Exchange Date, until payment of the
principal sum has been made or fully provided for. The Notes will mature on the
Maturity Date, regardless of the Exchange Date, unless earlier converted,
redeemed or purchased. Notwithstanding the foregoing, when there is no existing
default in the payment of interest on the Notes, all Notes authenticated by the
Trustee after the close of business on the record date (as defined in this
Section 2.3) for any interest payment date (each March 31, June 30, September 30
and December 31 after the Exchange Date, as the case may be) and prior to such
interest payment date shall be dated the date of authentication but shall bear
interest from such interest payment date; provided, however, that if and to the
extent that the Company shall default in interest due on such interest payment
date then any such Note shall bear interest from the next preceding March 31,
June 30, September 30 and December 31, as the case may be, to which interest has
been paid or duly provided for or, if no interest has been paid or duly provided
for on the Notes, from the Exchange Date.

      The person in whose name any Note (or its Predecessor Note) is registered
at the close of business on any record date with respect to any interest payment
date (including any Note that is converted after the record date and on or
before the interest payment date) shall be entitled to receive the interest
payable on such interest payment date notwithstanding the cancellation of such
Note upon any transfer, exchange or conversion subsequent to the record date and
on or prior to such interest payment date. Interest may, at the option of the
Company, be paid by check mailed to the address of such person on the registry
kept for such purposes; provided that, with respect to any holder of Notes with
an aggregate principal amount equal to or in excess of $2,000,000, at the
request of such holder in writing to the Company, interest on such holder's
Notes shall be paid by wire transfer in immediately available funds in
accordance with the wire transfer instruction supplied by such holder to the
Trustee and paying agent (if different from Trustee). Interest payable with
respect to Notes held in the form of a Global Note shall be paid to the
Depositary by wire transfer in immediately available funds in accordance with
the applicable procedures of the Depositary. The term "record date" with respect
to any interest payment date shall mean March 11, June 10, September 10 and
December 11 of each year, as the case may be.

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

      Any interest on any Note which is payable, but is not punctually paid or
duly provided for, on each March 31, June 30, September 30 and December 31 after
the Exchange Date (herein called "Defaulted Interest") shall forthwith cease to
be payable to the Noteholder on the relevant record date by virtue of his, her
or it having been such Noteholder; and such Defaulted Interest shall 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 Notes (or their respective Predecessor
      Notes) 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

                                       10
<PAGE>

      Trustee in writing of the amount of Defaulted Interest to be paid on each
      Note and the date of the payment (which shall be not less than twenty-five
      (25) days after the receipt by the Trustee of such notice, unless the
      Trustee shall consent to an earlier date), and at the same time the
      Company shall deposit with the Trustee an amount of money equal to the
      aggregate amount 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 provided. Thereupon, the Trustee shall fix a special
      record date for the payment of such Defaulted Interest which shall be not
      more than fifteen (15) days and not less than ten (10) days prior to the
      date of the proposed payment and not less than ten (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 Noteholder as of such
      special record date at his, her or its address as it appears in the Note
      register, not less than ten (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 Notes (or their respective
      Predecessor Notes) were 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 or automated quotation system on which the Notes may
      be listed or designated for issuance, and upon such notice as may be
      required by such exchange or automated quotation system, if, after notice
      given by the Company to the Trustee of the proposed payment pursuant to
      this clause, such manner of payment shall be deemed practicable by the
      Trustee.

      SECTION 2.4 EXECUTION OF NOTES. The Notes shall be signed in the name and
on behalf of the Company by the facsimile signature of its President, its Chief
Executive Officer, any of its Executive or Senior Vice Presidents, or any of its
Vice Presidents (whether or not designated by a number or numbers or word or
words added before or after the title "Vice President") and attested by the
manual or facsimile signature of its Secretary or any of its Assistant
Secretaries (which may be printed, engraved or otherwise reproduced thereon, by
facsimile or otherwise). Only such Notes as shall bear thereon a certificate of
authentication substantially in the form set forth on the form of Note attached
as Exhibit A hereto, manually executed by the Trustee (or an authenticating
agent appointed by the Trustee as provided by Section 16.11), shall be entitled
to the benefits of this Indenture or be valid or obligatory for any purpose.
Such certificate by the Trustee (or such an authenticating agent) upon any Note
executed by the Company shall be conclusive evidence that the Note so
authenticated has been duly authenticated and delivered hereunder and that the
holder is entitled to the benefits of this Indenture.

      In case any officer of the Company who shall have signed any of the Notes
shall cease to be such officer before the Notes so signed shall have been
authenticated and delivered by the

                                       11
<PAGE>

Trustee, or disposed of by the Company, such Notes nevertheless may be
authenticated and delivered or disposed of as though the person who signed such
Notes had not ceased to be such officer of the Company; and any Note may be
signed on behalf of the Company by such persons as, at the actual date of the
execution of such Note, shall be the proper officers of the Company, although at
the date of the execution of this Indenture any such person was not such an
officer.

      SECTION 2.5 EXCHANGE AND REGISTRATION OF TRANSFER OF NOTES.

            (a) The Company shall cause to be kept at the Corporate Trust Office
or other office of the Trustee or its Affiliate a register (the register
maintained in such office and in any other office or agency of the Company
designated pursuant to Section 5.2 being herein sometimes collectively referred
to as the "Note register") in which, subject to such reasonable regulations as
it may prescribe, the Company shall provide for the registration of Notes and of
transfers of Notes. Such register shall be in written form or in any form
capable of being converted into written form within a reasonable period of time.
The Trustee is hereby initially appointed "Note registrar" for the purpose of
registering Notes and transfers of Notes as herein provided. The Company may
appoint one or more co-registrars in accordance with Section 5.2. There shall be
only one Note register.

      Upon surrender for registration of transfer of any Note to the Note
registrar or any co-registrar, and satisfaction of the requirements for such
transfer set forth in this Section 2.5, the Company shall execute, and the
Trustee shall authenticate and deliver, in the name of the designated transferee
or transferees, one or more new Notes of any authorized denominations and of a
like aggregate principal amount. Notes may be exchanged for other Notes of any
authorized denominations and of a like aggregate principal amount, upon
surrender of the Notes to be exchanged at any such office or agency. Whenever
any Notes are so surrendered for exchange, the Company shall execute, and the
Trustee shall authenticate and deliver, the Notes which the Noteholder making
the exchange is entitled to receive, bearing registration numbers not
contemporaneously outstanding.

      All Notes presented or surrendered for registration of transfer or for
exchange shall (if so required by the Company, the Trustee, the Note registrar
or any co-registrar) be duly endorsed, or be accompanied by a written instrument
or instruments of transfer in form satisfactory to the Company and duly
executed, by the Noteholder thereof or his, her or its attorney duly authorized
in writing.

      No service charge shall be charged to the Noteholder for any exchange or
registration of transfer of Notes.

      None of the Company, the Trustee, the Note registrar or any co-registrar
shall be required to exchange or register a transfer of (a) any Notes for a
period of fifteen (15) days next preceding any selection of Notes to be redeemed
or (b) any Notes called for redemption or, if a portion of any Note is selected
or called for redemption, such portion thereof selected or called for redemption
or (c) any Notes surrendered for conversion or, if a portion of any Note is
surrendered for conversion, such portion thereof surrendered for conversion or
(d) any Notes

                                       12
<PAGE>

tendered for purchase or, if a portion of a Note is tendered for purchase, such
portion thereof tendered for purchase.

      All Notes issued upon any transfer or exchange of Notes in accordance with
this Indenture shall be the valid obligations of the Company, evidencing the
same debt, and entitled to the same benefits under this Indenture as the Notes
surrendered upon such registration of transfer or exchange.

            (b) So long as the Notes are eligible for book-entry settlement with
the Depositary, or unless otherwise required by law, all Notes that are so
eligible may be represented by a Note or Notes in global form (the "Global Note"
or "Global Notes") registered in the name of the Depositary or the nominee of
the Depositary, except as otherwise specified below. The transfer, conversion
and exchange of beneficial interests in the Global Note shall be effected
through the Depositary in accordance with this Indenture and the procedures of
the Depositary therefor.

      Transfers of interests in a Global Note will be made in accordance with
the standing instructions and procedures of the Depositary and its participants.
The Trustee shall make appropriate endorsements to reflect increases or
decreases in the Global Note as set forth on the face of the Global Note to
reflect any such transfers.

      Except as provided below, beneficial owners of an interest in a Global
Note shall not be entitled to have certificates registered in their names, will
not receive or be entitled to receive physical delivery of certificates in
definitive form and will not be considered holders of such Global Notes. No
definitive Note, or portion thereof, in respect of which the Company or an
Affiliate of the Company held any beneficial interest shall be included in a
Global Note. The Trustee shall authenticate Notes in definitive form upon any
transfer of a beneficial interest in any Global Note to the Company or any
Affiliate of the Company.

            (c) Any Global Note may be endorsed with or have incorporated in the
text thereof such legends or recitals or changes not inconsistent with the
provisions of this Indenture as may be required by the Custodian, the
Depositary, the New York Stock Exchange, the American Stock Exchange, the
National Association of Securities Dealers, Inc. or any other exchange or
automated quotation system in which the Notes are then authorized for trading in
order to comply with any applicable law or any regulation thereunder or with the
rules and regulations of any securities exchange upon which the Notes may be
listed or traded or to conform with any usage with respect thereto, or to
indicate any special limitations or restrictions to which any particular Notes
are subject.

            (d) Notwithstanding any other provisions of this Indenture (other
than the provisions set forth in this Section 2.5(d)), a Global Note may not be
transferred as a whole except by the Depositary to a nominee of the Depositary
or by a nominee of the Depositary to the Depositary or another nominee to a
successor Depositary or a nominee of such successor Depositary.

                                       13
<PAGE>

      The Depositary shall be a clearing agency registered under the Exchange
Act. The Company initially appoints The Depository Trust Company to act as
Depositary with respect to the Global Notes. Initially, the Global Note shall be
issued to the Depositary, registered in the name of Cede & Co., as the nominee
of the Depositary, and deposited with the Custodian for Cede & Co.

      If at any time: (A) the Depositary for a Global Note (i) has notified the
Company that it is unwilling or unable to continue as Depositary for such Global
Note and a successor depositary has not been appointed by the Company within
ninety (90) calendar days, or (ii) has ceased to be a clearing agency registered
under the Exchange Act and no successor clearing agency has been appointed by
the Company within ninety (90) calendar days; (B) an Event of Default has
occurred and is continuing; or (C) the Company, in its sole discretion, notifies
the Trustee in writing that it no longer wishes to have all the Notes
represented by Global Notes, the Company will execute, and the Trustee will
authenticate and deliver, Notes in certificated form, in an aggregate principal
amount equal to the principal amount of the Global Note, in exchange for such
Global Note. Any Global Note exchanged pursuant to clause (A) or (B) above shall
be so exchanged in whole and not in part, and any Global Note exchanged pursuant
to clause (C) above may be exchanged in whole or in part from time to time as
directed by the Company. Notes in definitive form issued in exchange for all or
a part of a Global Note pursuant to this Section 2.5(d) shall be registered in
such names and in such authorized denominations as the Depositary, pursuant to
instructions from its direct or indirect participants or otherwise, shall
instruct the Trustee. Upon execution and authentication, the Trustee shall
deliver such Notes in certificated form to the persons in whose names such Notes
in definitive form are so registered. Any Global Note exchanged pursuant to
clause (A) or (B) above shall be so exchanged in whole and not in part and any
Global Note exchanged pursuant to clause (C) above may be exchanged in whole or
from time to time in part as directed by the Company.

      At such time as all interests in a Global Note have been redeemed,
converted, exchanged, purchased or canceled for Notes in definitive form, or
transferred to a transferee who receives Notes in definitive form, such Global
Note shall be, upon receipt thereof, canceled by the Trustee in accordance with
standing procedures and instructions existing between the Custodian and
Depositary. At any time prior to such cancellation, if any interest in a Global
Note is exchanged for Notes in certificated form, redeemed, converted,
exchanged, purchased by the Company or canceled, or transferred for part of a
Global Note, the principal amount of such Global Note shall, in accordance with
the standing procedures and instructions existing between the Custodian and the
Depositary, be reduced or increased, as the case may be, and an endorsement
shall be made on such Global Note, by the Trustee or the Custodian, at the
direction of the Trustee, to reflect such reduction or increase.

            (e) Any Note or Common Stock issued upon the conversion or exchange
of a Note that is purchased or owned by the Company or any Affiliate thereof may
not be resold by the Company or such Affiliate unless registered under the
Securities Act or resold pursuant to an exemption from the registration
requirements of the Securities Act in a transaction which results in such Note
or Common Stock, as the case may be, no longer being "restricted securities" (as
defined under Rule 144). Any Note or Common Stock issued in definitive form to
the Company

                                       14
<PAGE>

or any Affiliate thereof shall be endorsed with or have incorporated in the text
thereof such legends or recitals as necessary to set forth the foregoing
restrictions.

      SECTION 2.6 MUTILATED, DESTROYED, LOST OR STOLEN NOTES. In case any Note
shall become mutilated or be destroyed, lost or stolen, the Company in its
discretion may execute, and upon its request the Trustee or an authenticating
agent appointed by the Trustee shall authenticate and deliver, a new Note,
bearing a number not contemporaneously outstanding, in exchange and substitution
for the mutilated Note, or in lieu of and in substitution for the Note so
destroyed, lost or stolen. In every case the applicant for a substituted Note
shall furnish to the Company, to the Trustee and, if applicable, to such
authenticating agent such security or indemnity as may be required by them to
save each of them harmless for any loss, liability, cost or expense caused by or
connected with such substitution, and, in every case of destruction, loss or
theft, the applicant shall also furnish to the Company, to the Trustee and, if
applicable, to such authenticating agent evidence to their satisfaction of the
destruction, loss or theft of such Note and of the ownership thereof.

      The Trustee or such authenticating agent may authenticate any such
substituted Note and deliver the same upon the receipt of such security or
indemnity as the Trustee, the Company and, if applicable, such authenticating
agent may require. Upon the issuance of any substituted Note, 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 connected
therewith. In case any Note which has matured or is about to mature or has been
called for redemption, or tendered for purchase in connection with a Change in
Control, or is about to be converted into Common Stock shall become mutilated or
be destroyed, lost or stolen, the Company may, instead of issuing a substitute
Note, pay or authorize the payment of or convert or authorize the conversion of
the same (without surrender thereof except in the case of a mutilated Note), as
the case may be, if the applicant for such payment or conversion shall furnish
to the Company, to the Trustee and, if applicable, to such authenticating agent
such security or indemnity as may be required by them to save each of them
harmless for any loss, liability, cost or expense caused by or connected with
such substitution, and, in case of destruction, loss or theft, evidence
satisfactory to the Company, the Trustee and, if applicable, any paying agent or
conversion agent of the destruction, loss or theft of such Note and of the
ownership thereof.

      Every substitute Note issued pursuant to the provisions of this Section
2.6 by virtue of the fact that any Note is destroyed, lost or stolen shall
constitute an additional contractual obligation of the Company, whether or not
the destroyed, lost or stolen Note shall be found at any time, and shall be
entitled to all the benefits of (but shall be subject to all the limitations set
forth in) this Indenture equally and proportionately with any and all other
Notes duly issued hereunder. To the extent permitted by law, all Notes shall be
held and owned upon the express condition that the foregoing provisions are
exclusive with respect to the replacement or payment or conversion of mutilated,
destroyed, lost or stolen Notes and shall preclude any and all other rights or
remedies notwithstanding any law or statute existing or hereafter enacted to the
contrary with respect to the replacement or payment or conversion of negotiable
instruments or other securities without their surrender.

                                       15
<PAGE>

      SECTION 2.7 TEMPORARY NOTES. Pending the preparation of definitive Notes
or any Global Note, the Company may execute and the Trustee or an authenticating
agent appointed by the Trustee shall, upon written request of the Company,
authenticate and deliver temporary Notes (printed or lithographed). Temporary
Notes shall be issuable in any authorized denomination, and substantially in the
form of the definitive Notes but with such omissions, insertions and variations
as may be appropriate for temporary Notes, all as may be determined by the
Company. Every such temporary Note shall be executed by the Company and
authenticated by the Trustee or such authenticating agent upon the same
conditions and in substantially the same manner, and with the same effect, as
the definitive Notes. Without unreasonable delay the Company will execute and
deliver to the Trustee or such authenticating agent definitive Notes and
thereupon any or all temporary Notes may be surrendered in exchange therefor, at
each office or agency maintained by the Company pursuant to Section 5.2 and the
Trustee or such authenticating agent shall authenticate and deliver in exchange
for such temporary Notes an equal aggregate principal amount of definitive
Notes. Such exchange shall be made by the Company at its own expense and without
any charge therefor. Until so exchanged, the temporary Notes shall in all
respects be entitled to the same benefits and subject to the same limitations
under this Indenture as definitive Notes authenticated and delivered hereunder.

      SECTION 2.8 CANCELLATION OF NOTES PAID, ETC. All Notes surrendered for the
purpose of payment, redemption, purchase, conversion, exchange or registration
of transfer, shall, if surrendered to the Company or any paying agent or any
Note registrar or any conversion agent, be surrendered to the Trustee and
promptly canceled by it, or, if surrendered to the Trustee, shall be promptly
canceled by it, and no Notes shall be issued in lieu thereof except as expressly
permitted by any of the provisions of this Indenture. Upon written instructions
of the Company, the Trustee shall destroy canceled Notes and, after such
destruction, shall, if requested by the Company, deliver a certificate of such
destruction to the Company. If the Company shall acquire any of the Notes, such
acquisition shall not operate as a redemption, purchase or satisfaction of the
indebtedness represented by such Notes unless and until the same are delivered
to the Trustee for cancellation.

                                  ARTICLE III

                       REDEMPTION AND REPURCHASE OF NOTES

      SECTION 3.1 REDEMPTION OF NOTES AT OPTION OF THE COMPANY. Except as
provided in Section 3.2, the Company may not redeem any Notes prior to December
31, 2006. On or after December 31, 2006, and prior to the Maturity Date, the
Notes may, subject to the last paragraph of Section 3.4, be redeemed at the
option of the Company, in whole or in part, at any time or from time to time,
upon notice as set forth in Section 3.3 and subject to the provisions for
partial redemption described below, for cash, at the per-note redemption prices
set forth in the form of Note attached as Exhibit A hereto, plus an amount equal
to accrued and unpaid interest, if any, to, but excluding, the date fixed for
redemption; provided that prior to December 31, 2007, the Notes may not be
redeemed by the Company, except as provided in Section 3.2, unless the Closing
Price of Common Stock (or, if more than one class of Common Stock is then issued
and outstanding, all classes of Common Stock) has exceeded 150% of the
Conversion Price for at

                                       16
<PAGE>

least 20 Trading Days during any period of 30 consecutive Trading Days ending
within five Trading Days prior to the notice of redemption.

      SECTION 3.2 OPTIONAL REDEMPTION OF NOTES UPON A CHANGE IN CONTROL. Upon
the occurrence of a Change in Control, the Notes may, subject to the last
paragraph of Section 3.4, be redeemed at the option of the Company, in whole but
not in part, on a date which is not later than sixty (60) days following the
effective date of the event or circumstance resulting in the Change in Control,
upon notice as set forth in Section 3.3, for cash at the per-note redemption
prices set forth in the form of Note attached as Exhibit A hereto, plus an
amount equal to accrued and unpaid interest, if any, to, but excluding, the date
fixed for redemption.

      SECTION 3.3 NOTICE OF REDEMPTION; SELECTION OF NOTES.

            (a) If the Company elects to exercise its right to redeem all or any
part of the Notes pursuant to Section 3.1, it shall fix a date for redemption
and it, or at its written request (which must be received by the Trustee at
least five (5) Business Days prior to the date the Trustee is requested to give
notice as described below unless a shorter period is agreed to by the Trustee),
the Trustee, in the name of and at the expense of the Company, shall mail or
cause to be mailed a notice of such redemption not fewer than thirty (30) nor
more than sixty (60) days prior to the date fixed for redemption to each holder
of Notes to be redeemed in whole or in part at its last address as the same
appears on the Note register; provided that if the Company shall give such
notice, it shall also give such notice, and notice of the Notes to be redeemed,
to the Trustee. Such mailing shall be by first class mail. The notice, if mailed
in the manner herein provided, shall be conclusively presumed to have been duly
given, whether or not the holder receives such notice. In any case, failure to
give such notice by mail or any defect in the notice to the holder of any Note
designated for redemption in whole or in part shall not affect the validity of
the proceedings for the redemption of any other Note. Concurrently with the
mailing of any such notice of redemption, the Company shall (i) issue a press
release announcing such redemption, (ii) publish such information once in a
daily newspaper printed in the English language and of general circulation in
the Borough of Manhattan, City of New York, New York, and (iii) publish such
information on the Company's website; it being understood that the form and
content of such press release and such publications shall be determined by the
Company in its sole discretion. None of the failure to issue any such press
release or make such publications, nor any defect therein, shall affect the
validity of the redemption notice or any of the proceedings for the redemption
of any Note called for redemption.

            (b) If the Company elects to exercise its right to redeem the Notes
in whole pursuant to Section 3.2, it shall fix a date for redemption and it, or
at its written request (which must be received by the Trustee at least five (5)
Business Days prior to the date the Trustee is requested to give notice as
described below unless a shorter period is agreed to by the Trustee), the
Trustee, in the name of and at the expense of the Company, shall mail or cause
to be mailed a notice of such redemption on a date that is at least thirty (30)
and not more than sixty (60) days prior to the date fixed for redemption, which
shall not be later than sixty (60) days following the effective date of the
event or circumstance resulting in the Change in Control, to each holder of
Notes at its last address as the same appears on the Note register, provided
that if the Company shall give such notice, it shall also give such notice to
the Trustee. Such mailing

                                       17
<PAGE>

shall be by first class mail. The notice, if mailed in the manner herein
provided, shall be conclusively presumed to have been duly given, whether or not
the holder receives such notice. In any case, failure to give such notice by
mail or any defect in the notice to the holder of any Note shall not affect the
validity of the proceedings for the redemption of any other Note. The notice
shall state that a Change in Control has occurred or may occur and shall
describe the event or circumstance which has resulted or may result in a Change
in Control, shall be accompanied by a copy of any press release or other public
announcement of the Change in Control event, and may state that the Company's
obligation to redeem the Notes is subject to consummation of the Change in
Control event. Concurrently with the mailing of any such notice of redemption,
the Company shall (i) issue a press release announcing such redemption, (ii)
publish such information once in a daily newspaper printed in the English
language and of general circulation in the Borough of Manhattan, City of New
York, New York, and (iii) publish such information on the Company's website; it
being understood that the form and content of such press release and such
publications shall be determined by the Company in its sole discretion. None of
the failure to issue any such press release or make such publications, nor any
defect therein, shall affect the validity of the redemption notice or any of the
proceedings for the redemption of any Note called for redemption.

            (c) In addition to the information specified in Section 3.3(a) and
3.3(b), if applicable, each such notice of redemption shall indicate that the
Company has exercised its right to redeem the Notes in respect of which notice
is given and shall specify the aggregate principal amount of Notes to be
redeemed, the CUSIP number or numbers of the Notes being redeemed, the date
fixed for redemption (which shall be a Business Day), the redemption price at
which Notes are to be redeemed, the place or places of payment that payment will
be made upon presentation and surrender of such Notes, including any procedures
applicable to a redemption to be accomplished through book-entry transfer, that
accrued and unpaid interest to (but excluding) the date fixed for redemption
will be paid as specified in said notice, and that on and after said date
interest thereon or on the portion thereof to be redeemed (as the case may be)
will cease to accrue. Such notice shall also state the current Conversion Price
and the date on which the right to convert such Notes or portions thereof into
Common Stock will expire. If fewer than all the Notes are to be redeemed, the
notice of redemption shall identify the Notes to be redeemed (including CUSIP
numbers). In the event any Note represented by a certificate is to be redeemed
in part only, the notice of redemption shall state the portion of the principal
amount thereof to be redeemed and shall state that, on and after the date fixed
for redemption, upon presentation and surrender of such Note, a new Note or
Notes in an aggregate principal amount equal to the unredeemed portion thereof
will be issued without cost to the holder of such Note.

            (d) If the Company gives notice of redemption as provided in this
Section 3.3, then the Company shall, on the date fixed for redemption, before
12:00 p.m., New York City time, with respect to: (i) Notes held by the
Depositary or its nominees, deposit or cause to be deposited, irrevocably with
the Trustee or any paying agent an amount of money sufficient to redeem on the
date fixed for redemption all the Notes so called for redemption (other than
those theretofore surrendered for conversion into Common Stock) at the
applicable redemption price, together with accrued and unpaid interest, if any,
to, but excluding, the date fixed for redemption and shall give the Trustee or
any paying agent irrevocable instructions and authority to pay such amount to
holders of such Notes; and (ii) Notes held in certificated form, deposit or
cause to be

                                       18
<PAGE>

deposited, irrevocably with the Trustee an amount of money sufficient to redeem
on the date fixed for redemption all the Notes so called for redemption (other
than those theretofore surrendered for conversion into Common Stock) at the
applicable redemption price, together with accrued and unpaid interest, if any,
to, but excluding, the date fixed for redemption, and shall give the Trustee
irrevocable instructions and authority to pay such amount to holders of such
Notes upon surrender of their certificates evidencing such Notes.

            (e) Payment of the redemption price for Notes, together with accrued
and unpaid interest, if any, to, but excluding, the date fixed for redemption is
conditioned upon book-entry transfer or physical delivery of certificates
representing the Notes, together with any necessary endorsements, to the
Trustee, or the Trustee's account at the Depositary, at any time after delivery
of the notice of redemption. The Company shall be entitled to retain any
interest, yield or gain on amounts deposited with the Trustee or any paying
agent pursuant to this Section 3.3 in excess of the amounts required hereunder
to pay the redemption price and accrued and unpaid interest to, but excluding,
the date fixed for redemption. Payment of the redemption price for the Notes,
together with accrued and unpaid interest to (but excluding) the date fixed for
redemption, will be made: (i) if book-entry transfer or physical delivery of the
Notes has been made by or on the date fixed for redemption, on the date fixed
for redemption, or (ii) if book-entry transfer or physical delivery of the Notes
has not been made by or on such date, at the time of book-entry transfer or
physical delivery of the Notes. If any Note called for redemption is converted
into Common Stock pursuant to Article XV prior to the date fixed for redemption,
any money deposited with the Trustee or any paying agent or segregated and held
in trust for the redemption of such Note shall be paid to the Company or, if
then held by the Company, shall be discharged from such trust. Whenever any
Notes are to be redeemed pursuant to Section 3.1 or 3.2, the Company will give
the Trustee written notice in the form of an Officers' Certificate not fewer
than sixty (60) days (or such shorter period of time as may be acceptable to the
Trustee) prior to the date fixed for redemption as to the aggregate principal
amount of Notes to be redeemed.

            (f) If less than all of the outstanding Notes are to be redeemed
pursuant to Section 3.1, the Trustee shall select the Notes or portions thereof
of the Global Note or the Notes in certificated form to be redeemed (in
principal amounts of $50 or integral multiples thereof) by lot, on a pro rata
basis or by another method the Trustee deems fair and appropriate in its sole
discretion. If a portion of a holder's Notes are selected for redemption
pursuant to Section 3.1 and such holder elects to convert a portion of its Notes
into Common Stock pursuant to Article XV prior to the date fixed for redemption,
then such converted portion shall be deemed to be taken from the portion
selected for redemption. The Notes (or portions thereof) selected for redemption
shall be deemed duly selected for redemption for all purposes hereof,
notwithstanding that any such Note is submitted for conversion into Common Stock
pursuant to Article XV, in whole or in part, before the mailing of the notice of
redemption. In the event any Note represented by a certificate is to be redeemed
in part only, upon presentation of such Note, the Company shall execute and the
Trustee shall authenticate and deliver to the holder of such Note, at the
expense of the Company, a new Note or Notes in an aggregate principal amount
equal to the unredeemed portion of such Note.

            (g) Upon any redemption of less than all of the outstanding Notes
pursuant to Section 3.1, the Company and the Trustee may (but need not), solely
for purposes of determining

                                       19
<PAGE>

the pro rata allocation among such Notes as are unconverted and outstanding at
the time of redemption, treat as outstanding any Notes surrendered for
conversion into Common Stock pursuant to Article XV during the period of fifteen
(15) days immediately preceding the mailing of a notice of redemption, and may
(but need not) treat as outstanding any Note authenticated and delivered during
such period in exchange for the unconverted portion of any Note converted into
Common Stock pursuant to Article XV in part during such period.

      SECTION 3.4 PAYMENT OF NOTES CALLED FOR REDEMPTION BY COMPANY. If notice
of redemption has been given as provided above, the Notes or portion of Notes
with respect to which such notice has been given shall, unless converted into
Common Stock pursuant to Article XV, become due and payable on the date and at
the place or places stated in such notice at the applicable redemption price,
together with accrued and unpaid interest to, but excluding, the date fixed for
redemption, and if the Trustee or any paying agent holds, in accordance with
this Section 3.4, money sufficient to pay the redemption price of the Notes
called for redemption, together with accrued and unpaid interest to, but
excluding, the date fixed for redemption, on and after said date (unless the
Company shall default in the payment of such redemption price, together with
accrued and unpaid interest to, but excluding, said date, in which case the
Notes will remain outstanding and interest shall continue to accrue until the
Company pays the redemption price, together with accrued and unpaid interest to
(but excluding) the date of such payment)) interest on the Notes or portion of
Notes called for redemption shall cease to accrue, such Notes shall be deemed to
be no longer outstanding and, except as provided in Sections 8.5 and 13.4, shall
cease to be entitled to any benefit or security under this Indenture, such Notes
shall cease after the close of business on the Business Day immediately
preceding the date fixed for redemption to be convertible into Common Stock and
the holders thereof shall have no right in respect of such Notes except the
right to receive the redemption price thereof and accrued and unpaid interest
to, but excluding, the date fixed for redemption, without interest thereon. On
presentation and surrender of such Notes via book-entry transfer or physical
delivery, such Notes to be redeemed shall be paid and redeemed by the Company at
the applicable redemption price, together with payment of accrued and unpaid
interest thereon to, but excluding, the date fixed for redemption; provided
that, if the date fixed for redemption is after a record date and on or before
the corresponding interest payment date, holders of such Notes registered as
such on such record date, subject to the terms and provisions of Section 2.3
hereof, shall be entitled to receive the interest payable on such Notes on the
corresponding interest payment date, and the amount payable to holders of such
Notes on the date fixed for redemption will not include any amount in respect of
interest payable on such corresponding interest payment date.

      Notwithstanding the foregoing, the Trustee shall not redeem any Notes or
mail any notice of redemption during the continuance of a default in payment of
interest or premium, if any, on the Notes or of any Event of Default of which,
in the case of any Event of Default other than under Section 7.1(a) or (b), a
Responsible Officer of the Trustee has knowledge.

      SECTION 3.5 RESERVED.

                                       20
<PAGE>

      SECTION 3.6 REQUIRED PURCHASE AT OPTION OF HOLDER UPON A CHANGE IN
CONTROL.

            (a) If there shall occur a Change in Control at any time prior to
the Maturity Date, and the Company does not elect to exercise the right to
redeem the Notes in whole pursuant to Section 3.2, Notes shall be purchased by
the Company, at the option of the holders thereof, in whole or in part (in
integral multiples of $50) as of the date (the "Change in Control Purchase
Date") specified by the Company that is 45 calendar days (or if such day is not
a Business Day, then the next succeeding Business Day) after the Company, or at
its request, the Trustee, has mailed written notice of such Change in Control to
holders of the Notes as set forth below, subject to satisfaction by or on behalf
of any holder of the requirements set forth below, for cash at a purchase price
equal to one-hundred percent (100%) of the aggregate principal amount thereof,
together with accrued and unpaid interest, if any, to, but excluding, the Change
in Control Purchase Date.

            (b) Within 30 calendar days after the effective date of the event or
circumstance resulting in a Change in Control, the Company, or at its written
request (which must be received by the Trustee at least five (5) Business Days
prior to the date the Trustee is requested to give notice unless a shorter
period is agreed to by the Trustee), the Trustee, in the name of and at the
expense of the Company, shall mail a written notice of the Change in Control to
the holders of Notes at their last addresses as the same appear on the Company's
Note register, as of the date of the Change in Control; provided that if the
Company shall give such notice, it shall also give such notice to the Trustee.
Such mailing shall be by first class mail. The notice, if mailed in the manner
herein provided, shall be conclusively presumed to have been duly given, whether
or not the holder receives such notice. In any case, failure to give such notice
by mail or any defect in the notice to the holder of any Note shall not affect
the validity of the proceedings for the purchase of any other Note. Concurrently
with the mailing of any such notice of Change in Control, the Company shall (i)
issue a press release announcing the Change in Control, (ii) publish such
information once in a daily newspaper printed in the English language and of
general circulation in the Borough of Manhattan, City of New York, New York, and
(iii) publish such information on the Company's website; it being understood
that the form and content of such press release and such publications shall be
determined by the Company in its sole discretion. None of the failure to issue
any such press release or make such publications, nor any defect therein, shall
affect the validity of the notice of Change in Control or any of the proceedings
for the purchase of any Note. The notice shall include the form of a Change in
Control Purchase Notice to be completed by the holder and a copy of any press
release or other public announcement of the Change in Control event, and shall
state:

                        (i) that a Change in Control has occurred or may occur
(including a description of the event or circumstance which has or may result in
a Change in Control), and that, as a result, the holders of Notes have certain
purchase rights;

                        (ii) the Change in Control Purchase Date;

                        (iii) the date by which the Change in Control Purchase
Notice pursuant to this Section 3.6 must be given;

                                       21
<PAGE>

                        (iv) the purchase price that will be payable with
respect to the Notes as of the Change in Control Purchase Date;

                        (v) that, on the Change in Control Purchase Date, if the
Change in Control Purchase Notice is timely given, the purchase price of the
Notes subject to such Change in Control Purchase Notice, together with accrued
and unpaid interest, if any, to, but excluding, the Change in Control Purchase
Date, will become due and payable and interest on such Notes shall cease to
accrue;

                        (vi) the name and address of the Trustee;

                        (vii) the Conversion Price then in effect;

                        (viii) that Notes as to which a Change in Control
Purchase Notice has been given may be converted into Common Stock only to the
extent that the Change in Control Purchase Notice has been withdrawn in
accordance with the terms of this Section 3.6;

                        (ix) the procedures that the holder of Notes must follow
to exercise its rights under this Section 3.6;

                        (x) the procedures for withdrawing a Change in Control
Purchase Notice, including a form of notice of withdrawal; and

                        (xi) that the Company's obligation to purchase the Notes
may be subject to the consummation of the Change in Control event.

      If any of the Notes is in the form of a Global Note, then the Company
shall modify such notice to the extent necessary to accord with the procedures
of the Depositary and the Trustee applicable to the purchase of Notes
represented by a Global Note.

            (c) A holder of Notes may exercise its rights pursuant to this
Section 3.6 upon delivery of a written notice (a form of which is set forth on
the reverse of the form of Note attached as Exhibit A hereto) duly completed,
which may be delivered by letter, overnight courier, hand delivery, facsimile
transmission or in any other written form and, in the case of Notes represented
by a Global Note, may be delivered electronically or by other means in
accordance with the Depositary's applicable procedures, of the exercise of such
rights (a "Change in Control Purchase Notice") to the Trustee at any time prior
to the close of business on the Business Day immediately before the Change in
Control Purchase Date. Payment of the purchase price for Notes, together with
accrued and unpaid interest, if any, to, but excluding, the Change in Control
Purchase Date, is conditioned upon (i) timely delivery of a completed Change in
Control Purchase Notice and (ii) book-entry transfer or physical delivery of the
Notes, together with any necessary endorsements, to the Trustee, at any time
after timely delivery of the Change in Control Purchase Notice. If a holder
timely delivers its Change in Control Purchase Notice, payment of the purchase
price for the Notes, together with accrued and unpaid interest, if any, to, but
excluding, the Change in Control Purchase Date, will be made: (i) if book-entry
transfer of or physical delivery of the Notes has been made by or on the Change
in Control

                                       22
<PAGE>

Purchase Date, on the Change in Control Purchase Date, or (ii) if book-entry
transfer of or physical delivery of the Notes has not been made by or on such
date, at the time of book-entry transfer of or physical delivery of the Notes.

            (d) Notwithstanding anything herein to the contrary, any holder of
Notes delivering to the Trustee the Change in Control Purchase Notice shall have
the right to withdraw such Change in Control Purchase Notice in whole or as to a
portion of such holder's Notes that is an integral multiple of $50 at any time
prior to the close of business on the Business Day immediately before the Change
in Control Purchase Date (unless the Company shall default in the payment of the
purchase price, together with accrued and unpaid interest to (but excluding) the
Change in Control Purchase Date, in which case, such withdrawal shall be
permitted until the Company pays the purchase price, together with accrued and
unpaid interest to (but excluding) the date of such payment) by delivery of a
written notice of withdrawal to the Trustee in accordance with the provisions of
this Section 3.6 specifying:

                  (i) the principal amount of Notes, in integral multiples of
$50, with respect to which such notice of withdrawal is being submitted;

                  (ii) if certificated Notes have been issued, the certificate
numbers for such shares in respect of which such notice of withdrawal is being
submitted or, if such Notes are in the form of a Global Note, such information
as is required by the Depositary; and

                  (iii) the principal amount of Notes, if any, that remain
subject to the original Change in Control Purchase Notice and have been or will
be delivered for purchase by the Company.

            The Trustee shall promptly notify the Company of the receipt by it
of any Change in Control Purchase Notice or written withdrawal thereof. The
Trustee will promptly return to the respective holders thereof any Notes with
respect to which a Change in Control Purchase Notice has been withdrawn in
compliance with this Section 3.6, in which case, upon such return, the Change in
Control Purchase Notice with respect thereto shall be deemed to have been
withdrawn. Any money deposited with the Trustee or any paying agent or
segregated and held in trust for the purchase of Notes as to which a Change in
Control Purchase Notice has been withdrawn shall be paid to the Company or, if
then held by the Company, shall be discharged from such trust.

            (e) Anything herein to the contrary notwithstanding, in the case of
Notes held pursuant to a Global Note, any Change in Control Purchase Notice may
be delivered or withdrawn and the Notes in respect of such Global Note may be
delivered for purchase or withdrawn in accordance with the applicable procedures
of the Depositary as in effect from time to time.

            (f) The Company shall, on the Change in Control Purchase Date,
before 12:00 p.m., New York City time, with respect to: (i) all Notes or
portions thereof which are to be purchased pursuant to this Section 3.6 and are
held by the Depositary or its nominees, deposit or cause to be deposited,
irrevocably with the Trustee or any paying agent an amount of money

                                       23
<PAGE>

sufficient to pay the aggregate purchase price of all Notes or portions thereof
which are to be purchased pursuant to this Section 3.6 plus an amount equal to
the accrued and unpaid interest, if any, to (but excluding) the Change in
Control Purchase Date, and shall give the Trustee or any paying agent
irrevocable instructions and authority to pay such amount to holders of such
Notes; and (ii) all Notes or portions thereof which are to be purchased pursuant
to this Section 3.6 and are held in certificated form, deposit or cause to be
deposited, irrevocably with the Trustee or any paying agent an amount of money
sufficient to pay the aggregate purchase price of all Notes or portions thereof
which are to be purchased pursuant to this Section 3.6 plus an amount equal to
the accrued and unpaid interest, if any, to (but excluding) the Change in
Control Purchase Date, and shall give the Trustee irrevocable instructions and
authority to pay such amount to holders of the certificates evidencing such
Notes upon surrender of the certificates evidencing such Notes. The Company
shall be entitled to retain any interest, yield or gain on funds deposited with
the Trustee or any paying agent pursuant to this Section 3.6 in excess of the
amounts required to pay the purchase price, together with accrued and unpaid
interest to (but excluding) the Change in Control Purchase Date.

            (g) If a Change in Control Purchase Notice has been given as
provided above, the purchase price of the Notes or portion of the Notes with
respect to which such Change in Control Purchase Notice has been given shall,
unless such Change in Control Purchase Notice is withdrawn pursuant to this
Section 3.6, become due and payable on the Change in Control Purchase Date
together with accrued and unpaid interest to, but excluding, the Change in
Control Purchase Date and if the Trustee or any paying agent holds, in
accordance with this Section 3.6, money sufficient to pay the purchase price of
the Notes to be purchased, together with accrued and unpaid interest to, but
excluding, the Change in Control Purchase Date, on and after the Change in
Control Purchase Date (unless the Company shall default in the payment of the
purchase price, together with accrued and unpaid interest to, but excluding, the
Change in Control Purchase Date, in which case the Notes will remain outstanding
and interest shall continue to accrue until the Company pays the purchase price,
together with accrued and unpaid interest to (but excluding) the date of such
payment), interest on such Notes shall cease to accrue, such Notes shall be
deemed no longer outstanding and, except as provided in Sections 8.5 and 13.4,
shall cease to be entitled to any benefit or security under this Indenture, the
holders of such Notes shall no longer have the right to withdraw any Change in
Control Purchase Notice in respect of such Notes after the close of business on
the Business Day immediately preceding the Change in Control Purchase Date and
the holders thereof shall have no right in respect of such Notes except the
right to receive the purchase price thereof and accrued and unpaid interest to,
but excluding, the Change in Control Purchase Date, without interest thereon.
Notes in respect of which a Change in Control Purchase Notice has been given by
the holder thereof may not be converted into shares of Common Stock on or after
the date of the delivery of such Change in Control Purchase Notice unless such
Change in Control Purchase Notice has first been validly withdrawn as specified
in this Section 3.6. On presentation and surrender of such Notes via book-entry
transfer or physical delivery, such Notes to be purchased shall be paid and
purchased by the Company at the purchase price, together with payment of accrued
and unpaid interest thereon to, but excluding, the Change in Control Purchase
Date; provided that, if the Change in Control Purchase Date falls after a record
date and on or before the corresponding interest payment date holders of such
Notes registered as such on such record date, subject to the terms and
provisions of Section 2.3 hereof, shall be entitled to receive the interest
payable on such

                                       24
<PAGE>

Notes on the corresponding interest payment date, and the amount payable to
holders of such Notes on the Change in Control Purchase Date will not include
any amount in respect of interest payable on such corresponding interest payment
date.

            (h) Upon presentation of any Note purchased in part only, the
Company shall execute and the Trustee shall authenticate and deliver to the
holder thereof, at the expense of the Company, a new Note or Notes, in an
aggregate principal amount equal to the unpurchased portion of such Note.

            (i) The Company shall comply with any applicable provisions of Rule
13e-4 and any other tender offer rules under the Exchange Act (including,
without limitation, a filing on Schedule TO or other schedule) to the extent
then applicable in connection with the purchase rights of the holders of the
Notes pursuant to this Section 3.6.

            (j) To the extent the Company has insufficient funds to purchase all
Notes for which the Trustee has received a Change in Control Purchase Notice
that has not subsequently been withdrawn, the Trustee shall select the Notes or
portions thereof of the Global Note or the Notes in certificated form to be
purchased (in principal amounts of $50 or integral multiples thereof) from the
Notes for which the Trustee has received a Change in Control Purchase Notice
that has not subsequently been withdrawn by lot, on a pro rata basis or by
another method the Trustee deems fair and appropriate in its sole discretion. To
the extent the Company has insufficient funds to purchase all Notes for which
the Trustee has received a Change in Control Purchase Notice that has not
subsequently been withdrawn, the Company and the Trustee may (but need not),
solely for purposes of determining the pro rata allocation among such Notes as
are unconverted and outstanding on the Change in Control Purchase Date, treat as
outstanding any Notes surrendered for conversion into Common Stock pursuant to
Article XV during the period of fifteen (15) days immediately preceding the
mailing of the notice of Change in Control pursuant to Section 3.6(b), and may
(but need not) treat as outstanding any Note authenticated and delivered during
such period in exchange for the unconverted portion of any Note converted into
Common Stock pursuant to Article XV in part during such period.

            (k) The Company shall not be required to purchase any Notes upon the
occurrence of a Change in Control if a third party makes an offer to purchase
the Notes in the manner, for the amount, at the times and otherwise in
compliance with the requirements described in this Section 3.6 and purchases all
Notes for which the Trustee has received a Change in Control Purchase Notice
that has not subsequently been withdrawn.

            (l) In the event of a reclassification, change, consolidation,
merger, combination, sale or conveyance to which clause (i) of Section 12.1
applies as a result of which the Common Stock issuable upon conversion of the
Notes changed or exchanged into the right to receive stock, securities or other
property or assets (including cash), which includes Common Stock or common stock
of another person that are, or upon issuance will be, traded on a United States
national securities exchange or approved for trading on an established automated
over-the-counter trading market in the United States and such shares constitute
at the time such change or exchange becomes effective in excess of fifty percent
(50%) of the aggregate fair market value of such stock, securities or other
property or assets (including cash) (as determined by the

                                       25
<PAGE>

Company, which determination shall be conclusive and binding), then the person
formed by such consolidation or resulting from such merger or that acquires such
assets, as the case may be, shall execute and deliver to the Trustee a
supplemental indenture (accompanied by an Opinion of Counsel that such
supplemental indenture complies with the Trust Indenture Act as in effect at the
date of execution of such supplemental indenture) modifying the provisions of
this Indenture relating to the right of holders of the Notes to cause the
Company to purchase the Notes following a Change in Control, including without
limitation the applicable provisions of this Section 3.6 and the definitions of
Common Stock and Change in Control, as appropriate, as determined in good faith
by the Company (which determination shall be conclusive and binding), to make
such provisions apply to such other person if different from the Company and the
common stock issued by such Person (in lieu of the Company and the Common Stock,
respectively).

                                   ARTICLE IV

                             SUBORDINATION OF NOTES

      SECTION 4.1 AGREEMENT OF SUBORDINATION. The Company covenants and agrees,
and each holder of Notes issued hereunder by his, her or its acceptance thereof
likewise covenants and agrees, that all Notes shall be issued subject to the
provisions of this Article IV; and each person holding any Note, whether upon
original issue or upon transfer, assignment or exchange thereof, accepts and
agrees to be bound by such provisions.

      The payment of the principal of, premium, if any, and interest on all
Notes (including, but not limited to, the redemption price with respect to the
Notes called for redemption in accordance with Section 3.3 and the purchase
price with respect to Notes tendered for purchase in accordance with Section
3.6) issued hereunder shall, to the extent and in the manner hereinafter set
forth, be subordinated and subject in right of payment to the prior payment in
full in cash or other payment satisfactory to holders of Senior Indebtedness of
all Senior Indebtedness.

      No provision of this Article IV shall prevent the occurrence of any
default or Event of Default hereunder.

      SECTION 4.2 PAYMENTS TO NOTEHOLDERS. No payment shall be made with respect
to the principal of, or premium, if any, or interest on the Notes (including,
but not limited to, the redemption price with respect to the Notes called for
redemption in accordance with Section 3.3 and the purchase price with respect to
Notes tendered for purchase in accordance with Section 3.6), except payments and
distributions made by the Trustee as permitted by the first or second paragraph
of Section 4.5, if:

            (a) a default in the payment of principal, premium, if any,
interest, or other obligations due on any Senior Indebtedness occurs and is
continuing (or, in the case of Senior Indebtedness for which there is a period
of grace, in the event of such a default that continues beyond the period of
grace, if any, specified in the instrument or lease evidencing such Senior
Indebtedness), unless and until such default shall have been cured or waived or
shall have ceased to exist; or

                                       26
<PAGE>

            (b) a default, other than a payment default, on a Senior
Indebtedness occurs and is continuing that then permits holders of such Senior
Indebtedness to accelerate its maturity and the Trustee receives a notice of the
default (a "Payment Blockage Notice") from the Company or holder or
Representative of Senior Indebtedness.

      If the Trustee receives any Payment Blockage Notice pursuant to clause (b)
above, no subsequent Payment Blockage Notice shall be effective for purposes of
this Section unless and until (A) at least 365 days shall have elapsed since the
effectiveness of the immediately prior Payment Blockage Notice, and (B) all
scheduled payments of principal, premium, if any, and interest on the Notes that
have come due have been paid in full in cash. No nonpayment default that existed
or was continuing on the date of delivery of any Payment Blockage Notice to the
Trustee shall be, or be made, the basis for a subsequent Payment Blockage
Notice.

      The Company may and shall resume payments on and distributions in respect
of the Notes upon the earlier of:

            (1) the date upon which the default is cured or waived or ceases to
      exist, or

            (2) in the case of a default referred to in clause (b) above, the
      earlier of (x) the date such default is cured or waived or ceases to exist
      or (y) the date that is 179 days after a Payment Blockage Notice is
      received if the maturity of such Senior Indebtedness has not been
      accelerated, unless this Article IV otherwise prohibits the payment or
      distribution at the time of such payment or distribution.

      Upon any payment by the Company, or distribution of assets of the Company
of any kind or character, whether in cash, property or securities, to creditors
upon any dissolution or winding-up or total or partial liquidation or
reorganization of the Company, whether voluntary or involuntary or in
bankruptcy, insolvency, receivership or other proceedings, all amounts due or to
become due upon all Senior Indebtedness shall first be paid in full, in cash or
other payment satisfactory to the holders of Senior Indebtedness or payment
thereof provided for in cash or other payment satisfactory to the holders of
Senior Indebtedness, before any payment is made on account of the principal (and
premium, if any) or interest on the Notes (except payments made pursuant to
Article XIII from monies deposited with the Trustee pursuant thereto prior to
the happening of such dissolution, winding-up, liquidation or reorganization or
bankruptcy, insolvency, receivership or other such proceedings); and upon any
such dissolution or winding-up or liquidation or reorganization or bankruptcy,
insolvency, receivership or other such proceedings, any payment by the Company,
or distribution of assets of the Company of any kind or character, whether in
cash, property or securities, to which the holders of the Notes or the Trustee
under this Indenture would be entitled, except for the provision of this Article
IV, shall (except as aforesaid) be paid by the Company or by any receiver,
trustee in bankruptcy, liquidating trustee, agent or other person making such
payment or distribution, or by the holders of the Notes or by the Trustee under
this Indenture if received by them or it, directly to the holders of Senior
Indebtedness (pro rata to such holders on the basis of the respective amounts of
Senior Indebtedness held by such holders or as otherwise required by law or a
court order) or their respective Representative or Representatives, as their
respective interests may appear, to the

                                       27
<PAGE>

extent necessary to pay all Senior Indebtedness in full in cash or other payment
satisfactory to holders of Senior Indebtedness after giving effect to any
concurrent payment or distribution to or for the holders of Senior Indebtedness,
before any payment or distribution is made to the holders of the Notes or to the
Trustee under this Indenture.

      In the event of the acceleration of the Notes pursuant to Article VII, no
payment or distribution shall be made to the Trustee or any holder of Notes in
respect of the principal of, premium, if any, or interest on the Notes
(including, but not limited to, the redemption price with respect to the Notes
called for redemption in accordance with Section 3.3 and the purchase price with
respect to Notes tendered for purchase in accordance with Section 3.6), except
payments and distributions made by the Trustee as permitted by the first or
second paragraph of Section 4.5, until all Senior Indebtedness has been paid in
full in cash or other payment satisfactory to the holders of Senior Indebtedness
or such acceleration is rescinded in accordance with the terms of this
Indenture. If payment of the Notes is accelerated pursuant to Article VII, the
Company shall promptly notify holders of Senior Indebtedness of such
acceleration.

      In the event that, notwithstanding the foregoing, any payment or
distribution of assets of the Company of any kind or character, whether in cash,
property or securities (including, without limitation, by way of set-off or
otherwise), prohibited by the foregoing, shall be received by the Trustee under
this Indenture or by any holders of the Notes before all Senior Indebtedness is
paid in full in cash or other payment satisfactory to holders of Senior
Indebtedness, or provision is made for in cash or other payment satisfactory to
holders of Senior Indebtedness, such payment or distribution shall be held by
the recipient or recipients in trust for the benefit of, and shall be
immediately paid over or delivered to, the holders of Senior Indebtedness or
their respective Representative or Representatives, or to the trustee or
trustees under any indenture pursuant to which any instruments evidencing any
Senior Indebtedness may have been issued, as their respective interests may
appear, as calculated by the Company, for application to the payment of all
Senior Indebtedness remaining unpaid to the extent necessary to pay all Senior
Indebtedness in full in cash or other payment satisfactory to the holders of
Senior Indebtedness, after giving effect to any concurrent payment or
distribution (or provision therefor) to or for the holders of such Senior
Indebtedness.

      For purposes of this Article IV, the words "cash, property or securities"
shall not be deemed to include shares of 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, the payment of which is
subordinated (at least to the extent provided in this Article IV with respect to
the Notes) to the payment of all Senior Indebtedness which may at the time be
outstanding; provided that (i) the Senior Indebtedness is assumed by the new
corporation, if any, resulting from such reorganization or adjustment, and (ii)
the rights of the holders of Senior Indebtedness (other than leases which are
not assumed by the Company or by the new corporation, as the case may be) are
not, without the consent of such holders, altered by such reorganization or
readjustment. The consolidation of the Company with, or the merger of the
Company into, another corporation or the liquidation or dissolution of the
Company following the conveyance or transfer of its property as an entirety, or
substantially as an entirety, to another corporation upon the terms and
conditions provided for in Article XII shall not be deemed a dissolution,
winding-up, liquidation or reorganization for the purposes of this Section 4.2
if such

                                       28
<PAGE>

other corporation shall, as a part of such consolidation, merger, conveyance or
transfer, comply with the conditions stated in Article XII.

      Nothing in this Section 4.2 shall apply to claims of, or payments to, the
Trustee under or pursuant to Section 8.6. This Section 4.2 shall be subject to
the further provisions of Section 4.5.

      SECTION 4.3 SUBROGATION OF NOTES. Subject to the payment in full of all
Senior Indebtedness, the rights of the holders of the Notes shall be subrogated
to the extent of the payments or distributions made to the holders of such
Senior Indebtedness pursuant to the provisions of this Article IV (equally and
ratably with the holders of all indebtedness of the Company which by its express
terms is subordinated to other indebtedness of the Company to substantially the
same extent as the Notes are subordinated and is entitled to like rights of
subrogation) to the rights of the holders of Senior Indebtedness to receive
payments or distributions of cash, property or securities of the Company
applicable to the Senior Indebtedness until the principal of (and premium, if
any) and interest on the Notes shall be paid in full; and, for the 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
Notes or the Trustee would be entitled except for the provisions of this Article
IV, and no payment over pursuant to the provisions of this Article IV, to or for
the benefit of the holders of Senior Indebtedness by holders of the Notes or the
Trustee, shall, as between the Company, its creditors other than holders of
Senior Indebtedness, and the holders of the Notes, be deemed to be a payment by
the Company to or on account of the Senior Indebtedness; and no payments or
distributions of cash, property or securities to or for the benefit of the
holders of the Notes pursuant to the subrogation provisions of this Article IV,
which would otherwise have been paid to the holders of Senior Indebtedness shall
be deemed to be a payment by the Company to or for the account of the Notes. It
is understood that the provisions of this Article IV are and are intended solely
for the purposes of defining the relative rights of the holders of the Notes, on
the one hand, and the holders of the Senior Indebtedness, on the other hand.

      Nothing contained in this Article IV or elsewhere in this Indenture or in
the Notes is intended to or shall impair, as among the Company, its creditors
other than the holders of Senior Indebtedness, and the holders of the Notes, the
obligation of the Company, which is absolute and unconditional, to pay to the
holders of the Notes the principal of (and premium, if any) and interest on the
Notes as and when the same shall become due and payable in accordance with their
terms, or is intended to or shall affect the relative rights of the holders of
the Notes and creditors of the Company other than the holders of the Senior
Indebtedness, nor shall anything herein or therein prevent the Trustee or the
holder of any Note from exercising all remedies otherwise permitted by
applicable law upon default under this Indenture, subject to the rights, if any,
under this Article IV of the holders of Senior Indebtedness in respect of cash,
property or securities of the Company received upon the exercise of any such
remedy.

      Upon any payment or distribution of assets of the Company referred to in
this Article IV, the Trustee, subject to the provisions of Section 8.1, and the
holders of the Notes shall be entitled to rely upon any order or decree made by
any court of competent jurisdiction in which such bankruptcy, dissolution,
winding-up, liquidation or reorganization proceedings are pending, or a
certificate of the receiver, trustee in bankruptcy, liquidating trustee, agent
or other person making

                                       29
<PAGE>

such payment or distribution, delivered to the Trustee or to the holders of the
Notes, for the purpose of ascertaining the persons entitled to participate in
such 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 IV.

      SECTION 4.4 AUTHORIZATION BY NOTEHOLDERS. Each holder of a Note by his,
her or its acceptance thereof authorizes and directs the Trustee on his, her or
its behalf to take such action as may be necessary or appropriate to effectuate
the subordination provided in this Article IV and appoints the Trustee his, her
or its attorney-in-fact for any and all such purposes.

      SECTION 4.5 NOTICE TO TRUSTEE. The Company shall give prompt written
notice in the form of an Officers' Certificate to a Responsible Officer of the
Trustee and to any paying agent of any fact known to the Company which would
prohibit the making of any payment of monies to or by the Trustee or any paying
agent in respect of the Notes pursuant to the provisions of this Article IV.
Notwithstanding the provisions of this Article IV or any other provision of this
Indenture, the Trustee shall not be charged with knowledge of the existence of
any Senior Indebtedness or of any default or event of default with respect to
any Senior Indebtedness or of any other facts which would prohibit the making of
any payment of monies to or by the Trustee in respect of the Notes pursuant to
the provisions of this Article IV, unless and until a Responsible Officer of the
Trustee shall have received written notice thereof at the Corporate Trust Office
from the Company (in the form of an Officers' Certificate) or a holder or
holders or Representative of Senior Indebtedness who shall have been certified
by the Company or otherwise established to the reasonable satisfaction of the
Trustee to be such holder or Representative; and before the receipt of any such
written notice, the Trustee, subject to the provisions of Section 8.1, shall be
entitled in all respects to assume that no such facts exist; provided that if on
a date at least two (2) Business Days prior to the date upon which by the terms
hereof any such monies may become payable for any purpose (including, without
limitation, the payment of the principal of, or premium, if any, or interest on
any Note), the Trustee shall not have received with respect to such monies the
notice provided for in this Section 4.5, then, anything herein contained to the
contrary notwithstanding, the Trustee shall have full power and authority to
receive such monies and to apply the same to the purpose for which they were
received, and shall not be affected by any notice to the contrary which may be
received by it on or after such prior date.

      Notwithstanding anything to the contrary hereinbefore set forth, nothing
shall prevent (a) any payment by the Company or the Trustee to the Noteholders
of amounts in connection with (i) a redemption of Notes if notice of such
redemption has been given to the holders of Notes in compliance with Section 3.3
prior to the receipt by the Trustee of written notice as aforesaid, or (ii) a
purchase of Notes tendered for purchase if the Change in Control Purchase Notice
has been received in compliance with Section 3.6 prior to the receipt by the
Trustee of written notice as aforesaid; or (b) any payment by the Trustee to the
Noteholders of monies deposited with it pursuant to Section 13.1.

      The Trustee, subject to the provisions of Section 8.1, shall be entitled
to rely on the delivery to it of a written notice by a person representing
himself, herself or itself to be a holder

                                       30
<PAGE>

of Senior Indebtedness (or a Representative on behalf of such holder) to
establish that such notice has been given by a holder of Senior Indebtedness or
a Representative on behalf of any such holder or holders. 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 IV, 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 IV, 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 4.6 TRUSTEE'S RELATION TO SENIOR INDEBTEDNESS. The Trustee and any
agent of the Company or the Trustee in its individual capacity shall be entitled
to all the rights set forth in this Article IV in respect of any Senior
Indebtedness at any time held by it, to the same extent as any other holder of
Senior Indebtedness, and nothing in Section 8.13 or elsewhere in this Indenture
shall deprive the Trustee or any such agent of any of its rights as such holder.
Nothing in this Article IV shall apply to claims of, or payments to, the Trustee
under or pursuant to Section 8.6.

      With respect to the holders of Senior Indebtedness, the Trustee undertakes
to perform or to observe only such of its covenants and obligations as are
specifically set forth in this Article IV, and no implied covenants or
obligations with respect to the holders of Senior Indebtedness shall be read
into this Indenture against the Trustee. The Trustee shall not be deemed to owe
any fiduciary duty to the holders of Senior Indebtedness and, subject to the
provisions of Sections 4.2, 4.5 and 8.1, the Trustee shall not be liable to any
holder of Senior Indebtedness if it shall pay over or deliver to holders of
Notes, the Company or any other person money or assets to which any holder of
Senior Indebtedness shall be entitled by virtue of this Article IV or otherwise.

      SECTION 4.7 NO IMPAIRMENT OF SUBORDINATION. 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 noncompliance by the Company with the
terms, provisions and covenants of this Indenture, regardless of any knowledge
thereof which any such holder may have or otherwise be charged with.

      SECTION 4.8 CERTAIN CONVERSIONS NOT DEEMED PAYMENT. For the purposes of
this Article IV only, (1) the issuance and delivery of junior securities upon
(i) conversion of Notes in accordance with Article XV shall not be deemed to
constitute a payment or distribution on account of the principal of (or premium,
if any) or interest on Notes or on account of the purchase or other acquisition
of Notes, and will therefor not be subject to the subordination provisions of
Article IV and (2) the payment, issuance or delivery of cash (except in
satisfaction of fractional shares pursuant to Section 15.3), property or
securities (other than junior securities) upon conversion of a Note shall be
deemed to constitute payment on account of the principal of such Note. For the
purposes of this Section, 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

                                       31
<PAGE>

right of payment to 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 Notes are so subordinated as provided in this
Article. Nothing contained in this Article or elsewhere in this Indenture or in
the Notes is intended to or shall impair, as among the Company, its creditors
other than holders of Senior Indebtedness and the holders of the Notes, the
right, which is absolute and unconditional, of the holder of any Note to convert
such Note in accordance with Article XV.

      SECTION 4.9 ARTICLE APPLICABLE TO PAYING AGENTS. If 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 shall (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 in addition to or in place of the
Trustee; provided, however, that the first paragraph of Section 4.5 shall not
apply to the Company or any Affiliate of the Company if it or such Affiliate
acts as paying agent.

      SECTION 4.10 SENIOR INDEBTEDNESS ENTITLED TO RELY. The holders of Senior
Indebtedness shall have the right to rely upon this Article IV, and no amendment
or modification of the provisions contained herein shall diminish the rights of
such holders unless such holders shall have agreed in writing thereto.

                                   ARTICLE V

                      PARTICULAR COVENANTS OF THE COMPANY

      SECTION 5.1 PAYMENT OF PRINCIPAL, PREMIUM AND INTEREST. The Company
covenants and agrees that it will duly and punctually pay or cause to be paid
the principal of and premium, if any, and interest on each of the Notes at the
places, at the respective times and in the manner provided herein and in the
Notes.

      SECTION 5.2 MAINTENANCE OF OFFICE OR AGENCY. The Company will maintain in
the Borough of Manhattan, The City of New York, New York, an office or agency
where the Notes may be surrendered for registration of transfer or exchange or
for presentation for payment or for conversion or redemption or purchase and
where notices and demands to or upon the Company in respect of the Notes 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 not designated or appointed by the Trustee. 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, or the
office or agency of the Trustee or an Affiliate of the Trustee, in the Borough
of Manhattan, The City of New York, New York.

      The Company may also from time to time designate one or more other offices
or agencies where the Notes may be presented or surrendered for any or all such
purposes and may from time to time rescind such designations; provided 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

                                       32
<PAGE>

of Manhattan, The City of New York, New York, for such purposes. The Company
will give prompt written notice to the Trustee of any such designation or
rescission and of any change in the location of any such other office or agency.

      The Company hereby initially designates the Trustee as paying agent, Note
registrar, Custodian and conversion agent. The Corporate Trust Office and the
office or agency of the Trustee in the Borough of Manhattan, The City of New
York, New York (which shall initially be The Bank of New York, located at 101
Barclay Street, New York, NY 10286) shall be considered as one such office or
agency of the Company for each of the aforesaid purposes.

      So long as the Trustee is the Note registrar, the Trustee agrees to mail,
or cause to be mailed, the notices set forth in Section 8.10(a) and the third
paragraph of Section 8.11.

      SECTION 5.3 APPOINTMENTS TO FILL VACANCIES IN TRUSTEE'S OFFICE. The
Company, whenever necessary to avoid or fill a vacancy in the office of Trustee,
will appoint, in the manner provided in Section 8.10, a Trustee, so that there
shall at all times be a Trustee hereunder.

      SECTION 5.4 PROVISIONS AS TO PAYING AGENT.

            (a) If the Company shall appoint a paying agent other than the
Trustee, the Company will cause such paying agent to execute and deliver to the
Trustee an instrument in which such agent shall agree with the Trustee, subject
to the provisions of this Section 5.4:

                  (1) that it will hold all sums held by it as such agent for
            the payment of the principal of and premium, if any, or interest on
            the Notes (whether such sums have been paid to it by the Company or
            by any other obligor on the Notes) in trust for the benefit of the
            holders of the Notes;

                  (2) that it will give the Trustee written notice of any
            failure by the Company (or by any other obligor on the Notes) to
            make any payment of the principal of and premium, if any, or
            interest on the Notes when the same shall be due and payable; and

                  (3) that at any time during the continuance of an Event of
            Default, upon request of the Trustee, it will forthwith pay to the
            Trustee all sums so held in trust.

      The Company shall, on or before each due date of the principal of,
premium, if any, or interest on the Notes, deposit with the paying agent a sum
(in funds which are immediately available) sufficient to pay such principal,
premium, if any, or interest, and (unless such paying agent is the Trustee) the
Company will promptly notify the Trustee in writing of any failure to take such
action, provided that if such deposit is made on the due date, such deposit must
be received by the paying agent by 10:00 a.m., New York City time, on such date.

            (b) If the Company shall act as its own paying agent, it will, on or
before each due date of the principal of, premium, if any, or interest on the
Notes, set aside, segregate and hold in trust for the benefit of the holders of
the Notes a sum sufficient to pay such principal,

                                       33
<PAGE>

premium, if any, or interest so becoming due and will notify the Trustee in
writing of any failure to take such action and of any failure by the Company (or
any other obligor under the Notes) to make any payment of the principal of,
premium, if any, or interest on the Notes when the same shall become due and
payable.

            (c) Anything in this Section 5.4 to the contrary notwithstanding,
the Company may, at any time, for the purpose of obtaining a satisfaction and
discharge of this Indenture, or for any other reason, pay or cause to be paid to
the Trustee all sums held in trust by the Company or any paying agent hereunder
as required by this Section 5.4, such sums to be held by the Trustee upon the
trusts herein contained and upon such payment by the Company or any paying agent
to the Trustee, the Company or such paying agent shall be released from all
further liability with respect to such sums.

            (d) Anything in this Section 5.4 to the contrary notwithstanding,
the agreement to hold sums in trust as provided in this Section 5.4 is subject
to Sections 13.3 and 13.4.

      SECTION 5.5 EXISTENCE. Subject to Article XII, the Company will do or
cause to be done all things necessary to preserve and keep in full force and
effect its existence.

      SECTION 5.6 RESTRICTION AS TO DIVIDENDS. The Company covenants and agrees
that so long as any Note is outstanding, no dividend (other than dividends or
distributions paid in shares of, or options, warrants or rights to subscribe for
or purchase shares of, Common Stock) shall be declared or paid or set apart for
payment, and no other distribution shall be declared or made or set apart for
payment, in each case upon the Common Stock, nor shall any Common Stock be
redeemed, purchased or otherwise acquired for any consideration (or any monies
be paid to or made available for a sinking fund or otherwise for the purchase or
redemption of any shares of Common Stock), by the Company or any Subsidiary
(except (A) by conversion into or exchange for Common Stock; or (B) repurchases
of unvested shares of Common Stock at cost upon termination of the employment or
consultancy of the holder thereof, provided such repurchases are approved by the
Board of Directors in good faith) unless such dividend, distribution,
redemption, purchase or acquisition is not declared, paid or made, or funds or
other assets therefor set aside or made available for payment or distribution
(whether by way of a sinking fund or otherwise), until December 31, 2007.

      SECTION 5.7 STAY, EXTENSION AND USURY LAWS. The Company covenants (to the
extent that it may lawfully do so) that it shall not at any time insist upon,
plead, or in any manner whatsoever claim or take the benefit or advantage of,
any stay, extension or usury law or other law which would prohibit or forgive
the Company from paying all or any portion of the principal of, premium, if any,
or interest on the Notes as contemplated herein, wherever enacted, now or at any
time hereafter in force, or which may affect the covenants or the performance of
this Indenture; and the Company (to the extent it may lawfully do so) hereby
expressly waives all benefit or advantage of any such law, and covenants that it
will not, by resort to any such law, 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 has been enacted.

                                       34
<PAGE>

      SECTION 5.8 COMPLIANCE CERTIFICATE. The Company shall deliver to the
Trustee, within 120 days after the end of each fiscal year of the Company
(beginning with the fiscal year in which the Exchange Date falls), 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.

      The Company will deliver to the Trustee, forthwith upon becoming aware of
any default in the performance or observance of any covenant, agreement or
condition contained in this Indenture, or any Event of Default, an Officers'
Certificate specifying with particularity such default or Event of Default and
further stating what action the Company has taken, is taking or proposes to take
with respect thereto.

      Any notice required to be given under this Section 5.8 shall be delivered
to the Trustee at its Corporate Trust Office.

      SECTION 5.9 FURTHER INSTRUMENTS AND ACTS. Upon request of the Trustee, the
Company will execute and deliver such further instruments and do such further
acts as may be reasonably necessary or proper to carry out more effectively the
purposes of this Indenture.

                                   ARTICLE VI

                         NOTEHOLDERS' LISTS AND REPORTS
                         BY THE COMPANY AND THE TRUSTEE

      SECTION 6.1 NOTEHOLDERS' LISTS. The Company covenants and agrees that it
will furnish or cause to be furnished to the Trustee, quarterly, not more than
fifteen (15) days after March 11, June 10, September 10 and December 11 of each
year beginning with March 11, June 10, September 10 and December 11, immediately
after the Exchange Date, and at such other times as the Trustee may request in
writing, within thirty (30) days after receipt by the Company of any such
request (or such lesser time as the Trustee may reasonably request in order to
enable it to timely provide any notice to be provided by it hereunder), a list
in such form as the Trustee may reasonably require of the names and addresses of
the holders of Notes as of a date not more than fifteen (15) days (or such other
date as the Trustee may reasonably request in order to so provide any such
notices) prior to the time such information is furnished, except that no such
list need be furnished so long as the Trustee is acting as Note registrar.

      SECTION 6.2 PRESERVATION AND DISCLOSURE OF LISTS.

            (a) The Trustee shall preserve, in as current a form as is
reasonably practicable, all information as to the names and addresses of the
holders of Notes contained in the most recent list furnished to it as provided
in Section 6.1 or maintained by the Trustee in its capacity as Note registrar,
if so acting. The Trustee may destroy any list furnished to it as provided in
Section 6.1 upon receipt of a new list so furnished.

                                       35
<PAGE>

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

            (c) Every Noteholder, 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 of Notes made pursuant to the
Trust Indenture Act.

      SECTION 6.3 REPORTS BY TRUSTEE.

            (a) Within 60 days after May 1 of each year commencing with the year
in which the Exchange Date falls, the Trustee shall transmit to holders of Notes
such reports dated as of May 1 of the year in which such reports are made
concerning the Trustee and its actions under this Indenture as may be required
pursuant to Section 313 of the Trust Indenture Act at the times and in the
manner provided pursuant thereto. In the event that no events have occurred
under the applicable sections of the Trust Indenture Act, the Trustee shall be
under no duty or obligation to provide such reports.

            (b) A copy of such report shall, at the time of such transmission to
holders of Notes, be filed by the Trustee with each stock exchange or automated
quotation system upon which the Notes are listed, with the Commission and with
the Company. The Company will notify the Trustee when the Notes are listed on
any stock exchange or automated quotation system and when any such listing is
discontinued.

      SECTION 6.4 REPORTS BY COMPANY.

            (a) The Company (and any obligor upon the Notes) shall file with the
Trustee and the Commission, and transmit to holders of Notes, 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.

            (b) The Company will deliver to the Trustee (a) as soon as available
and in any event within ninety (90) days after the end of each fiscal year of
the Company (i) a consolidated balance sheet of the Company and its subsidiaries
as of the end of such fiscal year and the related consolidated statements of
operations, stockholders' equity and cash flows for such fiscal year, all
reported on by an independent public accountant of nationally recognized
standing and (ii) a report containing a management's discussion and analysis of
the financial condition and results of operations and a description of the
business and properties of the Company and (b) as soon as available and in any
event within forty-five (45) days after the end of each of the first three
quarters of each fiscal year of the Company an unaudited consolidated
management's discussion and analysis of the financial condition and results of
operations of the Company for such quarter; provided that the foregoing
statements and reports shall not be required for any fiscal year or

                                       36
<PAGE>

quarter, as the case may be, with respect to which the Company files or expects
to file with the Trustee an annual report or quarterly report, as the case may
be, pursuant to Section 6.4(a). The Trustee shall have no liability as regards
the substance of the information provided by the Company or its agents pursuant
to this Section 6.4.

                                  ARTICLE VII

                             DEFAULTS AND REMEDIES

      SECTION 7.1 EVENTS OF DEFAULT. In case one or more of the following Events
of Default (whatever the reason for such Event of Default and whether it shall
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) shall have occurred and be continuing:

            (a) default in the payment of the principal of and premium, if any,
on any of the Notes as and when the same shall become due and payable either at
maturity or in connection with any redemption or purchase, by declaration or
otherwise, whether or not such payment is prohibited by the provisions of
Article IV; or

            (b) default in the payment of any installment of interest, upon any
of the Notes as and when the same shall become due and payable, and continuance
of such default for a period of thirty (30) days, whether or not such payment is
prohibited by the provisions of Article IV; or

            (c) default in the Company's obligation to deliver shares of Common
Stock, together with cash in lieu of any fractional shares, when due upon
conversion of Notes as provided in Article XV, and continuance of such default
for a period of ten (10) Business Days; or

            (d) failure on the part of the Company to provide timely notice of a
Change in Control as provided in Section 3.6(b); or

            (e) failure on the part of the Company duly to observe or perform
any other of the covenants or agreements on the part of the Company in the Notes
or in this Indenture (other than a covenant or agreement a default in whose
performance or whose breach is elsewhere in this Section specifically dealt
with) continued for a period of forty-five (45) days after the date on which
written notice of such failure, requiring the Company to remedy the same, shall
have been given to the Company by the Trustee, or to the Company and a
Responsible Officer of the Trustee by the holders of at least 25% in aggregate
principal amount of the outstanding Notes at the time outstanding determined in
accordance with Section 9.4; or

            (f) failure by the Company, or any current or future Subsidiary, to
make any payment at maturity, including any applicable grace period, in respect
of Indebtedness, in an amount in excess of $5,000,000 or the equivalent thereof
in any other currency or composite currency and such failure shall have
continued for a period of thirty (30) days after written notice thereof shall
have been given to the Company by the Trustee, or to the Company and a

                                       37
<PAGE>

Responsible Officer of the Trustee by the holders of at least 25% in aggregate
principal amount of the outstanding Notes at the time outstanding determined in
accordance with Section 9.4; or

            (g) a default by the Company, or any current or future Subsidiary,
with respect to any Indebtedness which default results in the acceleration of
Indebtedness in an amount in excess of $5,000,000 or the equivalent thereof in
any other currency or composite currency without such Indebtedness having been
discharged or such acceleration having been cured, waived, rescinded or annulled
for a period of thirty (30) days after written notice thereof shall have been
given to the Company by the Trustee or to the Company and a Responsible Officer
of the Trustee by the holders of at least 25% in aggregate principal amount of
the outstanding Notes at the time outstanding determined in accordance with
Section 9.4; or

            (h) the Company or any current or future Subsidiary shall commence a
voluntary case or other proceeding seeking liquidation, reorganization or other
relief with respect to itself or its debts under any bankruptcy, insolvency or
other similar law now or hereafter in effect or seeking the appointment of a
trustee, receiver, liquidator, custodian or other similar official of it or any
substantial part of its property, or shall consent to any such relief or to the
appointment of or taking possession by any such official in an involuntary case
or other proceeding commenced against it, or shall make a general assignment for
the benefit of creditors, or shall fail generally to pay its debts as they
become due; or

            (i) an involuntary case or other proceeding shall be commenced
against the Company or any current or future Subsidiary seeking liquidation,
reorganization or other relief with respect to it or its debts under any
bankruptcy, insolvency or other similar law now or hereafter in effect or
seeking the appointment of a trustee, receiver, liquidator, custodian or other
similar official of it or any substantial part of its property, and such
involuntary case or other proceeding shall remain undismissed and unstayed for a
period of ninety (90) consecutive days;

then, and in each and every such case (other than an Event of Default specified
in Section 7.1(h) or (i)), unless the principal of all of the Notes shall have
already become due and payable, either the Trustee or the holders of not less
than 25% in aggregate principal amount of the Notes then outstanding hereunder
determined in accordance with Section 9.4, by notice in writing to the Company
(and to the Trustee if given by Noteholders), may declare the principal of and
premium, if any, on all the Notes and the interest accrued thereon to be due and
payable immediately, and upon any such declaration the same shall become and
shall be immediately due and payable, anything in this Indenture or in the Notes
contained to the contrary notwithstanding. If an Event of Default specified in
Section 7.1(h) or (i) occurs and is continuing, the principal of and premium, if
any, on all the Notes and the interest accrued thereon shall be immediately due
and payable. This provision, however, is subject to the conditions that if, at
any time after the principal of the Notes shall have been so declared due and
payable, and before any judgment or decree for the payment of the monies due
shall have been obtained or entered as hereinafter provided, the Company shall
pay or shall deposit with the Trustee a sum sufficient to pay all matured
installments of interest upon all Notes and the principal of and premium, if
any, on any and all Notes which shall have become due otherwise than by
acceleration (with interest on overdue installments of interest (to the extent
that payment of such interest is enforceable under applicable law) and on such
principal and premium, if any, at the rate borne by the Notes, to the

                                       38
<PAGE>

date of such payment or deposit) and amounts due to the Trustee pursuant to
Section 8.6, and if any and all defaults under this Indenture, other than the
nonpayment of principal of and premium, if any, and accrued interest on Notes
which shall have become due by acceleration, shall have been cured or waived
pursuant to Section 7.7, then and in every such case the holders of a majority
in aggregate principal amount of the Notes then outstanding, by written notice
to the Company and to the Trustee, may waive all defaults or Events of Default
and rescind and annul such declaration and its consequences; but no such waiver
or rescission and annulment shall extend to or shall affect any subsequent
default or Event of Default, or shall impair any right consequent thereon. The
Company shall notify the Responsible Officer of the Trustee, promptly upon
becoming aware thereof, of any Event of Default.

      In case the Trustee shall have proceeded to enforce any right under this
Indenture and such proceedings shall have been discontinued or abandoned because
of such waiver or rescission and annulment or for any other reason or shall have
been determined adversely to the Trustee, then and in every such case the
Company, the holders of Notes, and the Trustee shall be restored respectively to
their several positions and rights hereunder, and all rights, remedies and
powers of the Company, the holders of Notes, and the Trustee shall continue as
though no such proceeding had been instituted.

      SECTION 7.2 PAYMENTS OF NOTES ON DEFAULT; SUIT THEREFOR. The Company
covenants that (a) in case default shall be made in the payment by the Company
of any installment of interest upon any of the Notes as and when the same shall
become due and payable, and such default shall have continued for a period of
thirty (30) days, or (b) in case default shall be made in the payment of the
principal of or premium, if any, on any of the Notes as and when the same shall
have become due and payable, whether at maturity of the Notes or in connection
with any redemption, purchase, by declaration under this Indenture or otherwise,
then, upon demand of the Trustee, the Company will pay to the Trustee, for the
benefit of the holders of the Notes, the whole amount that then shall have
become due and payable on all such Notes for principal and premium, if any, or
interest, or both, as the case may be, with interest upon the overdue principal
and premium, if any, and (to the extent that payment of such interest is
enforceable under applicable law) upon the overdue installments of interest at
the rate borne by the Notes; and, in addition thereto, such further amount as
shall be sufficient to cover the costs and expenses of collection, including
reasonable compensation to the Trustee, its agents, attorneys and counsel, and
any expenses or liabilities incurred by the Trustee hereunder other than through
its negligence or bad faith. Until such demand by the Trustee, the Company may
pay the principal of and premium, if any, and interest on the Notes to the
registered holders, whether or not the Notes are overdue.

      In case the Company shall fail forthwith to pay such amounts upon such
demand, the Trustee, in its own name and as trustee of an express trust, shall
be entitled and empowered to institute any actions or proceedings at law or in
equity for the collection of the sums so due and unpaid, and may prosecute any
such action or proceeding to judgment or final decree, and may enforce any such
judgment or final decree against the Company or any other obligor on the Notes
and collect in the manner provided by law out of the property of the Company or
any other obligor on the Notes wherever situated the monies adjudged or decreed
to be payable.

                                       39
<PAGE>

      In case there shall be pending proceedings for the bankruptcy or for the
reorganization of the Company or any other obligor on the Notes under Title 11
of the United States Code, or any other applicable law, or in case a receiver,
assignee or trustee in bankruptcy or reorganization, liquidator, sequestrator or
similar official shall have been appointed for or taken possession of the
Company or such other obligor, the property of the Company or such other
obligor, or in the case of any other judicial proceedings relative to the
Company or such other obligor upon the Notes, or to the creditors or property of
the Company or such other obligor, the Trustee, irrespective of whether the
principal of the Notes shall then be due and payable as therein expressed or by
declaration or otherwise and irrespective of whether the Trustee shall have made
any demand pursuant to the provisions of this Section 7.2, shall be entitled and
empowered, by intervention in such proceedings or otherwise, to file and prove a
claim or claims for the whole amount of principal, premium, if any, and interest
owing and unpaid in respect of the Notes, and, in case of any judicial
proceedings, to file such proofs of claim and other papers or documents as may
be necessary or advisable in order to have the claims of the Trustee and of the
Noteholders allowed in such judicial proceedings relative to the Company or any
other obligor on the Notes, its or their creditors, or its or their property,
and to collect and receive any monies or other property payable or deliverable
on any such claims, and to distribute the same after the deduction of any
amounts due the Trustee under Section 8.6; and any receiver, assignee or trustee
in bankruptcy or reorganization, liquidator, custodian or similar official is
hereby authorized by each of the Noteholders 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 Noteholders, to pay to the Trustee any amount due it
for reasonable compensation, expenses, advances and disbursements, including
counsel fees incurred by it up to the date of such distribution. To the extent
that such payment of reasonable compensation, expenses, advances and
disbursements out of the estate in any such proceedings shall be denied for any
reason, payment of the same shall be secured by a lien on, and shall be paid out
of, any and all distributions, dividends, monies, securities and other property
which the holders of the Notes may be entitled to receive in such proceedings,
whether in liquidation or under any plan of reorganization or arrangement or
otherwise.

      Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or adopt on behalf of any Noteholder any plan of
reorganization or arrangement affecting the Notes or the rights of any
Noteholder, or to authorize the Trustee to vote in respect of the claim of any
Noteholder in any such proceeding; provided, however, that the Trustee may, on
behalf of the Noteholders, vote for the election of a trustee in bankruptcy or
similar official and may be a member of the creditor's committee established
with respect to such bankruptcy.

      All rights of action and of asserting claims under this Indenture, or
under any of the Notes, may be enforced by the Trustee without the possession of
any of the Notes, or the production thereof on any trial or other proceeding
relative thereto, and any such suit or 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 Notes.

      SECTION 7.3 APPLICATION OF MONIES COLLECTED BY TRUSTEE. Any monies
collected by the Trustee pursuant to this Article VII shall be applied in the
order following, at the date or dates

                                       40
<PAGE>

fixed by the Trustee for the distribution of such monies, upon presentation of
the several Notes, and stamping thereon 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 8.6;

      Second: Subject to the provisions of Article IV, in case the principal of
the outstanding Notes shall not have become due and be unpaid, to the payment of
interest on the Notes in default in the order of the maturity of the
installments of such interest, with interest (to the extent that such interest
has been collected by the Trustee) upon the overdue installments of interest at
the rate borne by the Notes, such payments to be made ratably to the persons
entitled thereto;

      Third: Subject to the provisions of Article IV, in case the principal of
the outstanding Notes shall have become due, by declaration or otherwise, and be
unpaid, to the payment of the whole amount then owing and unpaid upon the Notes
for principal and premium, if any, and interest, with interest on the overdue
principal and premium, if any, and (to the extent that such interest has been
collected by the Trustee) upon overdue installments of interest at the rate
borne by the Notes; and in case such monies shall be insufficient to pay in full
the whole amounts so due and unpaid upon the Notes, then to the payment of such
principal and premium, if any, and interest without preference or priority of
principal and premium, if any, over interest, or of interest over principal and
premium, if any, or of any installment of interest over any other installment of
interest, or of any Note over any other Note, ratably to the aggregate of such
principal and premium, if any, and accrued and unpaid interest; and

      Fourth: Subject to the provisions of Article IV, to the payment of the
remainder, if any, to the Company or any other person lawfully entitled thereto.

      SECTION 7.4 PROCEEDINGS BY NOTEHOLDER. No holder of any Note shall have
any right by virtue of or by availing of any provision of this Indenture to
institute any suit, action or proceeding in equity or at law upon or under or
with respect to this Indenture, or for the appointment of a receiver, trustee,
liquidator, custodian or other similar official, or for any other remedy
hereunder, unless such holder previously shall have given to the Trustee written
notice of an Event of Default and of the continuance thereof, as hereinbefore
provided, and unless also the holders of not less than 25% in aggregate
principal amount of the Notes then outstanding shall have made written request
upon the Trustee to institute such action, suit or proceeding in its own name as
Trustee hereunder and shall have offered to the Trustee such reasonable
indemnity as it may require against the costs, expenses and liabilities to be
incurred therein or thereby, and the Trustee for sixty (60) days after its
receipt of such notice, request and offer of indemnity, shall have neglected or
refused to institute any such action, suit or proceeding and no direction
inconsistent with such written request shall have been given to the Trustee
pursuant to Section 7.7; it being understood and intended that no one or more
holders of Notes 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 holders of Notes, or to obtain or seek to obtain priority or
preference over any other holders or to enforce any right under this Indenture,
except in the manner herein provided and for the equal and ratable benefit of
all the holders of Notes.

                                       41
<PAGE>

      Notwithstanding any other provision of this Indenture and any provision of
any Note, the right of any holder of any Note to receive payment of the
principal of and premium, if any, and interest on such Note, on or after the
respective due dates expressed in such Note, or to institute suit for the
enforcement of any such payment on or after such respective dates against the
Company shall not be impaired or affected without the consent of such holder.

      Anything in this Indenture or the Notes to the contrary notwithstanding,
the holder of any Note, without the consent of either the Trustee or the holder
of any other Note, in his, her or its own behalf and for his, her or its own
benefit, may enforce, and may institute and maintain any proceeding suitable to
enforce, his, her or its rights of conversion as provided herein.

      SECTION 7.5 PROCEEDINGS BY TRUSTEE. In case of an Event of Default, the
Trustee may in its discretion proceed to protect and enforce the rights vested
in it by this Indenture by such appropriate judicial proceedings as the Trustee
shall deem most effectual to protect and enforce any of such rights, either by
suit in equity or by action at law or by proceeding in bankruptcy or otherwise,
whether for the specific enforcement of any covenant or agreement contained in
this Indenture or in aid of the exercise of any power granted in this Indenture,
or to enforce any other legal or equitable right vested in the Trustee by this
Indenture or by law.

      SECTION 7.6 REMEDIES CUMULATIVE AND CONTINUING. Except as provided in
Section 2.6, all powers and remedies given by this Article VII to the Trustee or
to the Noteholders shall, to the extent permitted by law, be deemed cumulative
and not exclusive of any thereof or of any other powers and remedies available
to the Trustee or the holders of the Notes, by judicial proceedings or
otherwise, to enforce the performance or observance of the covenants and
agreements contained in this Indenture, and no delay or omission of the Trustee
or of any holder of any of the Notes to exercise any right or power accruing
upon any default or Event of Default occurring and continuing as aforesaid shall
impair any such right or power, or shall be construed to be a waiver of any such
default or any acquiescence therein; and, subject to the provisions of Section
7.4, every power and remedy given by this Article VII or by law to the Trustee
or to the Noteholders may be exercised from time to time, and as often as shall
be deemed expedient, by the Trustee or by the Noteholders.

      SECTION 7.7 DIRECTION OF PROCEEDINGS AND WAIVER OF DEFAULTS BY MAJORITY OF
NOTEHOLDERS. The holders of a majority in aggregate principal amount of the
Notes at the time outstanding determined in accordance with Section 9.4 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, however, that (a) such direction shall
not be in conflict with any rule of law or with this Indenture, and (b) the
Trustee may take any other action deemed proper by the Trustee which is not
inconsistent with such direction. The holders of not less than a majority in
aggregate principal amount of the Notes at the time outstanding determined in
accordance with Section 9.4 may on behalf of the holders of all of the Notes
waive any past default or Event of Default hereunder and its consequences except
(i) a default by the Company in the payment of interest or premium, if any, on,
or the principal of, the Notes, (ii) a failure by the Company to convert any
Notes into Common Stock or (iii) a default by the Company in respect of a
covenant or provision hereof which under Article XI cannot be modified or
amended without the consent of the holders of all Notes then outstanding
affected

                                       42
<PAGE>

thereby. Upon any such waiver the Company, the Trustee and the holders of the
Notes shall be restored to their former positions and rights hereunder; but no
such waiver shall extend to any subsequent or other default or Event of Default
or impair any right consequent thereon. Whenever any default or Event of Default
hereunder shall have been waived as permitted by this Section 7.7, said default
or Event of Default shall for all purposes of the Notes and this Indenture be
deemed to have been cured and to be not continuing; but no such waiver shall
extend to any subsequent or other default or Event of Default or impair any
right consequent thereon.

      SECTION 7.8 NOTICE OF DEFAULTS. The Trustee shall, within ninety (90) days
after the occurrence of a default, mail to all Noteholders, as the names and
addresses of such holders appear upon the Note register, notice of all defaults
known to a Responsible Officer, unless such defaults shall have been cured or
waived before the giving of such notice; and provided that, except in the case
of default in the payment of the principal of, or premium, if any (either at
maturity or in connection with any redemption or purchase, by declaration or
otherwise), or interest on any of the Notes, the Trustee shall be protected in
withholding such notice if and so long as a trust committee of directors and/or
Responsible Officers of the Trustee in good faith determines that the
withholding of such notice is in the best interests of the Noteholders.

      The Trustee shall not be charged with the knowledge of any default or
Event of Default with respect to the Notes, other than an Event of Default under
Section 7.1(a) or (b) unless either (1) a Responsible Officer shall have actual
knowledge of such default or Event of Default or (2) written notice of such
default or Event of Default making reference to this Indenture and to the Notes
shall have been given to the Trustee by the Company or any Noteholder.

      SECTION 7.9 UNDERTAKING TO PAY COSTS. All parties to this Indenture agree,
and each holder of any Note by his, her or its acceptance thereof shall be
deemed to have agreed, that any court may, in its discretion, require, in any
suit for the enforcement of any right or remedy under this Indenture, or in any
suit against the Trustee for any action taken or omitted by it as Trustee, the
filing by any party litigant in such suit of an undertaking to pay the costs of
such suit and that such court may in its discretion assess reasonable costs,
including reasonable attorneys' fees, against any party litigant in such suit,
having due regard to the merits and good faith of the claims or defenses made by
such party litigant; provided that the provisions of this Section 7.9 shall not
apply to any suit instituted by the Trustee, to any suit instituted by any
Noteholder, or group of Noteholders, holding in the aggregate more than 10% in
principal amount of the Notes at the time outstanding determined in accordance
with Section 9.4, or to any suit instituted by any Noteholder for the
enforcement of the payment of the principal of or premium, if any, or interest
on any Note (including, but not limited to, the redemption price with respect to
the Notes being redeemed or the purchase price with respect to the Notes being
purchased as provided in this Indenture) on or after the due date expressed in
such Note or to any suit for the enforcement of the right to convert any Note in
accordance with the provisions of Article XV.

      SECTION 7.10 DELAY OR OMISSION NOT WAIVER. No delay or omission of the
Trustee or of any holder of any Note 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 any acquiescence therein. Every right and
remedy given by this Article or by law to the Trustee or to

                                       43
<PAGE>

the holders of Notes may be exercised from time to time, and as often as may be
deemed expedient, by the Trustee or by the holders of Notes, as the case may be.

                                  ARTICLE VIII

                             CONCERNING THE TRUSTEE

      SECTION 8.1 DUTIES AND RESPONSIBILITIES OF TRUSTEE. The Trustee, prior to
the occurrence of an Event of Default and after the curing of all Events of
Default which may have occurred, undertakes to perform such duties and only such
duties as are specifically set forth in this Indenture. In case an Event of
Default has occurred (which has not been cured or waived) 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 its exercise, as a prudent person would
exercise or use under the circumstances in the conduct of such person's own
affairs.

      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

            (a) prior to the occurrence of an Event of Default and after the
curing or waiving of all Events of Default which may have occurred:

                  (1) the duties and obligations of the Trustee shall be
            determined solely by the express provisions of this Indenture and
            the Trust Indenture Act, and the Trustee shall not be liable except
            for the performance of such duties and obligations as are
            specifically set forth in this Indenture and no implied covenants or
            obligations shall be read into this Indenture and the Trust
            Indenture Act against the Trustee; and

                  (2) in the absence of bad faith on the part of the Trustee,
            the Trustee may conclusively rely, as to the truth of the statements
            and the correctness of the opinions expressed therein, upon any
            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 provisions 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 (but need not
            confirm or investigate the accuracy of mathematical calculations or
            other facts stated therein);

            (b) the Trustee shall not be liable for any error of judgment made
in good faith by a Responsible Officer or Officers of the Trustee, unless it
shall be proved that the Trustee was negligent in ascertaining the pertinent
facts;

            (c) the Trustee shall not be liable to any Noteholder 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 not less than a majority in principal
amount of the Notes at the time outstanding determined as

                                       44
<PAGE>

provided in Section 9.4 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

            (d) whether or not therein provided, every provision of this
Indenture relating to the conduct or affecting the liability of, or affording
protection to, the Trustee shall be subject to the provisions of this Section.

      None of the provisions contained in this Indenture shall require the
Trustee to expend or risk its own funds or otherwise incur personal financial
liability in the performance of any of its duties or in the exercise of any of
its rights or powers, if there is reasonable ground for believing that the
repayment of such funds or adequate indemnity against such risk or liability is
not reasonably assured to it.

      SECTION 8.2 RELIANCE ON DOCUMENTS, OPINIONS, ETC. Except as otherwise
provided in Section 8.1:

            (a) the Trustee may rely and shall be protected in acting upon any
resolution, certificate, statement, instrument, opinion, report, notice,
request, consent, order, bond, Note, coupon or other paper or document believed
by it in good faith to be genuine and to have been signed or presented by the
proper party or parties;

            (b) before the Trustee acts or refrains from acting, it may request
an Officers' Certificate or an Opinion of Counsel, or both;

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

            (d) the Trustee shall be under no obligation to exercise any of the
rights or powers vested in it by this Indenture at the request, order or
direction of any of the Noteholders pursuant to the provisions of this
Indenture, unless such Noteholders shall have offered to the Trustee reasonable
security or indemnity against the costs, expenses and liabilities which may be
incurred therein or thereby;

            (e) 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,
Note, note 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; provided, however, that if
the payment within a reasonable time to the Trustee of the costs, expenses or
liabilities likely to be incurred by it in the making of such investigation is,
in the opinion of the Trustee, not reasonably assured to the Trustee by the
security afforded to it by the terms of this Indenture, the Trustee may require
reasonable indemnity from the Noteholders against such expenses or liability as
a condition to so proceeding; the reasonable

                                       45
<PAGE>

expenses of every such examination shall be paid by the Company or, if paid by
the Trustee or any predecessor Trustee, shall be repaid by the Company upon
demand; and

            (f) 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 by it with due care
hereunder.

      In no event shall the Trustee be liable for any consequential loss or
damage of any kind whatsoever (including but not limited to lost profits), even
if the Trustee has been advised of the likelihood of such loss or damage and
regardless of the form of action.

      SECTION 8.3 TRUSTEE'S DISCLAIMER. The recitals contained herein and in the
Notes (except in the Trustee's certificate of authentication) shall be taken as
the statements of the Company, and the Trustee assumes no responsibility for the
correctness of the same. The Trustee makes no representations as to the validity
or sufficiency of this Indenture or of the Notes. The Trustee shall not be
accountable for the use or application by the Company of any Notes or the
proceeds of any Notes authenticated and delivered by the Trustee in conformity
with the provisions of this Indenture.

      SECTION 8.4 TRUSTEE, PAYING AGENTS, CONVERSION AGENTS OR REGISTRAR MAY OWN
NOTES. The Trustee, any paying agent, any conversion agent or Note registrar, in
its individual or any other capacity, may become the owner or pledgee of Notes
with the same rights it would have if it were not Trustee, paying agent,
conversion agent or Note registrar.

      SECTION 8.5 MONIES TO BE HELD IN TRUST. Subject to the provisions of
Section 13.4, all monies received by the Trustee shall, until used or applied as
herein provided, be held in trust for the purposes for which they were received.
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 may be
agreed from time to time by the Company and the Trustee.

      SECTION 8.6 COMPENSATION AND EXPENSES OF TRUSTEE. The Company covenants
and agrees to pay to the Trustee from time to time, and the Trustee shall be
entitled to, reasonable compensation for all services rendered by it hereunder
in any capacity (which shall not be limited by any provision of law in regard to
the compensation of a trustee of an express trust), and the Company will pay or
reimburse the Trustee upon its request for all reasonable expenses,
disbursements and advances reasonably incurred or made by the Trustee in
accordance with any of the provisions of this Indenture (including the
reasonable compensation and the expenses and disbursements of its counsel and of
all persons not regularly in its employ) except any such expense, disbursement
or advance as may arise from its negligence or willful misconduct. The Company
also covenants to indemnify the Trustee in any capacity under this Indenture and
its agents and any authenticating agent for, and to hold them harmless against,
any loss, liability or expense incurred without negligence or willful misconduct
on the part of the Trustee or such agent or authenticating agent, as the case
may be, and arising out of or in connection with the acceptance or
administration of this trust or in any other capacity hereunder, including the
costs

                                       46
<PAGE>

and expenses of defending themselves against any claim of liability in the
premises. The obligations of the Company under this Section 8.6 to compensate or
indemnify the Trustee and to pay or reimburse the Trustee for expenses,
disbursements and advances shall be secured by a lien prior to that of the Notes
upon all property and funds held or collected by the Trustee as such, except
funds held in trust herewith for the benefit of the holders of particular Notes
prior to the date of the accrual of such unpaid compensation or indemnifiable
claim. The obligation of the Company under this Section shall survive the
satisfaction and discharge of this Indenture.

      When the Trustee and its agents and any authenticating agent incur
expenses or render services after an Event of Default specified in Section
7.1(h) or (i) occurs, the expenses and the compensation for the services are
intended to constitute expenses of administration under any bankruptcy,
insolvency or similar laws.

      SECTION 8.7 OFFICERS' CERTIFICATE AS EVIDENCE. Except as otherwise
provided in Section 8.1 or Section 8.2, whenever in the administration of the
provisions of this Indenture the Trustee shall deem it necessary or desirable
that a matter be proved or established prior to taking or omitting any action
hereunder, such matter (unless other evidence in respect thereof be herein
specifically prescribed) may, in the absence of negligence, willful misconduct,
recklessness and bad faith on the part of the Trustee, be deemed to be
conclusively proved and established by an Officers' Certificate delivered to the
Trustee, and such Officers' Certificate, in the absence of negligence, willful
misconduct, recklessness and bad faith on the part of the Trustee, shall be full
warrant to the Trustee for any action taken or omitted by it under the
provisions of this Indenture upon the faith thereof.

      SECTION 8.8 CONFLICTING INTERESTS OF TRUSTEE.

            (a) 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.

            (b) In the event that the Trustee shall fail to comply with
Subsection (a) of this Section 8.8, the Trustee shall transmit notice of such
failure to the holders of Notes to the extent and in the manner provided by, and
subject to, the provisions of the Trust Indenture Act.

      SECTION 8.9 ELIGIBILITY OF TRUSTEE. There shall at all times be a Trustee
hereunder which shall be a person that is eligible pursuant to the Trust
Indenture Act to act as such and has a combined capital and surplus (together
with its corporate parent) of at least $50,000,000 (or, if such person is a
member of a bank holding company system, the bank holding company shall have a
combined capital and surplus of at least $50,000,000). If such person publishes
reports of condition at least annually, pursuant to law or to the requirements
of any supervising or examining authority, then for the purposes of this
Section, the combined capital and surplus of such person 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.

                                       47
<PAGE>

      SECTION 8.10 RESIGNATION OR REMOVAL OF TRUSTEE.

            (a) The Trustee may at any time resign by giving written notice of
such resignation to the Company and by mailing notice thereof to the holders of
Notes at their addresses as they shall appear on the Note register. Upon
receiving such notice of resignation, the Company shall promptly appoint a
successor trustee by written instrument, in duplicate, executed by order of the
Board of Directors, one copy of which instrument shall be delivered to the
resigning Trustee and one copy to the successor trustee. If no successor trustee
shall have been so appointed and have accepted appointment thirty (30) days
after the mailing of such notice of resignation to the Noteholders, the
resigning Trustee may, at the expense of the Company, petition any court of
competent jurisdiction for the appointment of a successor trustee, or any
Noteholder who has been a bona fide holder of a Note or Notes for at least six
months may, subject to the provisions of Section 7.9, on behalf of himself,
herself or itself and all others similarly situated, petition any such court for
the appointment of a successor trustee. Such court may thereupon, after such
notice, if any, as it may deem proper and prescribe, appoint a successor
trustee.

            (b) In case at any time any of the following shall occur:

                  (1) the Trustee shall fail to comply with Section 8.8(a) after
            written request therefor by the Company or by any Noteholder who has
            been a bona fide holder of a Note or Notes for at least six months,
            or

                  (2) the Trustee shall cease to be eligible in accordance with
            the provisions of Section 8.9 and shall fail to resign after written
            request therefor by the Company or by any such Noteholder, or

                  (3) the Trustee shall become incapable of acting, or shall be
            adjudged 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, the Company may remove the Trustee and appoint a
successor trustee by written instrument, in duplicate, executed by order of the
Board of Directors, one copy of which instrument shall be delivered to the
Trustee so removed and one copy to the successor trustee, or, subject to the
provisions of Section 7.9, any Noteholder who has been a bona fide holder of a
Note or Notes for at least six months may, on behalf of himself, herself or
itself and all others similarly situated, petition any court of competent
jurisdiction for the removal of the Trustee and the appointment of a successor
trustee. Such court may thereupon, after such notice, if any, as it may deem
proper and prescribe, remove the Trustee and appoint a successor trustee.

            (c) The holders of a majority in aggregate principal amount of the
Notes at the time outstanding may at any time remove the Trustee and nominate a
successor trustee which shall be deemed appointed as successor trustee unless
within ten (10) days after notice to the Company of such nomination the Company
objects thereto, in which case the Trustee so

                                       48
<PAGE>

removed or any Noteholder, upon the terms and conditions and otherwise as in
Section 8.10(a) provided, may petition any court of competent jurisdiction for
an appointment of a successor trustee.

            (d) Any resignation or removal of the Trustee and appointment of a
successor trustee pursuant to any of the provisions of this Section 8.10 shall
become effective upon acceptance of appointment by the successor trustee as
provided in Section 8.11.

      SECTION 8.11 ACCEPTANCE BY SUCCESSOR TRUSTEE. Any successor trustee
appointed as provided in Section 8.10 shall execute, acknowledge and deliver to
the Company and to its predecessor trustee an instrument accepting such
appointment hereunder, and thereupon the resignation or removal of the
predecessor trustee shall become effective and such successor trustee, without
any further act, deed or conveyance, shall become vested with all the rights,
powers, duties and obligations of its predecessor hereunder, with like effect as
if originally named as trustee herein; but, nevertheless, on the written request
of the Company or of the successor trustee, the trustee ceasing to act shall,
upon payment of any amounts then due it pursuant to the provisions of Section
8.6, execute and deliver an instrument transferring to such successor trustee
all the rights and powers of the trustee so ceasing to act. Upon request of any
such successor trustee, the Company shall execute any and all instruments in
writing for more fully and certainly vesting in and confirming to such successor
trustee all such rights and powers. Any trustee ceasing to act shall,
nevertheless, retain a lien upon all property and funds held or collected by
such trustee as such, except for funds held in trust for the benefit of holders
of particular Notes, to secure any amounts then due it pursuant to the
provisions of Section 8.6.

      No successor trustee shall accept appointment as provided in this Section
8.11 unless at the time of such acceptance such successor trustee shall be
qualified under the provisions of Section 8.8 and be eligible under the
provisions of Section 8.9.

      Upon acceptance of appointment by a successor trustee as provided in this
Section 8.11, each of the Company and the former trustee shall mail or cause to
be mailed notice of the succession of such trustee hereunder to the holders of
Notes at their addresses as they shall appear on the Note register. If the
Company fails to mail such notice within ten (10) days after acceptance of
appointment by the successor trustee, the successor trustee shall cause such
notice to be mailed at the expense of the Company.

      SECTION 8.12 SUCCESSION BY MERGER, ETC. Any corporation or other entity
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 or other
entity succeeding to all or substantially all of the corporate trust business of
the Trustee (including the trust created hereunder), shall be the successor to
the Trustee hereunder without the execution or filing of any paper or any
further act on the part of any of the parties hereto, provided that in the case
of any corporation succeeding to all or substantially all of the trust business
of the Trustee such corporation shall be qualified under the provisions of
Section 8.8 and eligible under the provisions of Section 8.9.

                                       49
<PAGE>

      In case at the time such successor to the Trustee shall succeed to the
trusts created by this Indenture, any of the Notes shall have been authenticated
but not delivered, any such successor to the Trustee may adopt the certificate
of authentication of any predecessor trustee or authenticating agent appointed
by such predecessor trustee, and deliver such Notes so authenticated; and in
case at that time any of the Notes shall not have been authenticated, any
successor to the Trustee or an authenticating agent appointed by such successor
trustee may authenticate such Notes either in the name of any predecessor
trustee hereunder or in the name of the successor trustee; and in all such cases
such certificates shall have the full force which it is anywhere in the Notes or
in this Indenture provided that the certificate of the Trustee shall have;
provided, however, that the right to adopt the certificate of authentication of
any predecessor Trustee or to authenticate Notes in the name of any predecessor
Trustee shall apply only to its successor or successors by merger, conversion or
consolidation.

      SECTION 8.13 LIMITATION ON RIGHTS OF TRUSTEE AS CREDITOR. If and when the
Trustee shall be or become a creditor of the Company (or any other obligor upon
the Notes) and the Trust Indenture Act is applicable hereto, the Trustee shall
be subject to the provisions of Section 311(a) of the Trust Indenture Act or, if
applicable, Section 311(b) of the Trust Indenture Act regarding the collection
of the claims against the Company (or any such other obligor).

                                   ARTICLE IX

                           CONCERNING THE NOTEHOLDERS

      SECTION 9.1 ACTION BY NOTEHOLDERS. Whenever in this Indenture it is
provided that the holders of a specified percentage in aggregate principal
amount of the Notes may take any action (including the making of any demand or
request, the giving of any notice, consent or waiver or the taking of any other
action), the fact that at the time of taking any such action, the holders of
such specified percentage have joined therein may be evidenced (a) by any
instrument or any number of instruments of similar tenor executed by Noteholders
in person or by agent or proxy appointed in writing, or (b) by the record of the
holders of Notes voting in favor thereof at any meeting of Noteholders duly
called and held in accordance with the provisions of Article X, or (c) by a
combination of such instrument or instruments and any such record of such a
meeting of Noteholders. Whenever the Company or the Trustee solicits the taking
of any action by the holders of the Notes, the Company or the Trustee may fix in
advance of such solicitation, a date as the record date for determining holders
entitled to take such action. The record date shall be not more than fifteen
(15) days prior to the date of commencement of solicitation of such action.

      SECTION 9.2 PROOF OF EXECUTION BY NOTEHOLDERS. Subject to the provisions
of Sections 8.1, 8.2 and 10.5, proof of the execution of any instrument by a
Noteholder or his, her or its agent or proxy shall be sufficient if made in
accordance with such reasonable rules and regulations as may be prescribed by
the Trustee or in such manner as shall be satisfactory to the Trustee. The
holding of Notes shall be proved by the Note register or by a certificate of the
Note registrar. The record of any Noteholders' meeting shall be proved in the
manner provided in Section 10.6.

                                       50
<PAGE>

      SECTION 9.3 WHO ARE DEEMED ABSOLUTE OWNERS. The Company, the Trustee, any
paying agent, any conversion agent and any Note registrar may deem the person in
whose name such Note shall be registered upon the Note register to be, and may
treat him, her or it as, the absolute owner of such Note (whether or not such
Note shall be overdue and notwithstanding any notation of ownership or other
writing thereon) for the purpose of receiving payment of or on account of the
principal of, premium, if any, and interest on such Note, for conversion of such
Note and for all other purposes; and neither the Company nor the Trustee nor any
paying agent nor any conversion agent nor any Note registrar shall be affected
by any notice to the contrary. All such payments so made to any holder for the
time being, or upon his, her or its order, shall be valid, and, to the extent of
the sum or sums so paid, effectual to satisfy and discharge the liability for
monies payable upon any such Note.

      SECTION 9.4 COMPANY-OWNED NOTES DISREGARDED. In determining whether the
holders of the requisite aggregate principal amount of Notes have concurred in
any direction, consent, waiver or other action under this Indenture, Notes which
are owned by the Company or any other obligor on the Notes or by any Affiliate
of the Company or any other obligor on the Notes shall be disregarded and deemed
not to be outstanding for the purpose of any such determination; provided that
for the purposes of determining whether the Trustee shall be protected in
relying on any such direction, consent, waiver or other action only Notes which
a Responsible Officer of the Trustee knows are so owned shall be so disregarded.
Notes so owned which have been pledged in good faith may be regarded as
outstanding for the purposes of this Section 9.4 if the pledgee shall establish
to the satisfaction of the Trustee the pledgee's right to vote such Notes and
that the pledgee is not the Company, any other obligor on the Notes or an
Affiliate of the Company or any such other obligor. In the case of a dispute as
to such right, any decision by the Trustee taken upon the advice of counsel
shall be full protection to the Trustee. Upon request of the Trustee, the
Company shall furnish to the Trustee promptly an Officers' Certificate listing
and identifying all Notes, if any, known by the Company to be owned or held by
or for the account of any of the above described persons; and, subject to
Section 8.1, the Trustee shall be entitled to accept such Officers' Certificate
as conclusive evidence of the facts therein set forth and of the fact that all
Notes not listed therein are outstanding for the purpose of any such
determination.

      SECTION 9.5 REVOCATION OF CONSENTS; FUTURE HOLDERS BOUND. At any time
prior to (but not after) the evidencing to the Trustee, as provided in Section
9.1, of the taking of any action by the holders of the percentage in aggregate
principal amount of the Notes specified in this Indenture in connection with
such action, any holder of a Note which is shown by the evidence to be included
in the Notes the holders of which have consented to such action may, by filing
written notice with the Trustee at its Corporate Trust Office and upon proof of
holding as provided in Section 9.2, revoke such action so far as concerns such
Note. Except as aforesaid, any such action taken by the holder of any Note shall
be conclusive and binding upon such holder and upon all future holders and
owners of such Note and of any Notes issued in exchange or substitution
therefor, irrespective of whether any notation in regard thereto is made upon
such Note or any Note issued in exchange or substitution therefor.

                                   ARTICLE X

                             NOTEHOLDERS' MEETINGS

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<PAGE>

      SECTION 10.1 PURPOSE OF MEETINGS. A meeting of Noteholders may be called
at any time and from time to time pursuant to the provisions of this Article X
for any of the following purposes:

            (1) to give any notice to the Company or to the Trustee or to give
      any directions to the Trustee permitted under this Indenture, or to
      consent to the waiving of any default or Event of Default hereunder and
      its consequences, or to take any other action authorized to be taken by
      Noteholders pursuant to any of the provisions of Article VII;

            (2) to remove the Trustee and nominate a successor trustee pursuant
      to the provisions of Article VIII;

            (3) to consent to the execution of an indenture or indentures
      supplemental hereto pursuant to the provisions of Section 11.2;

            (4) to take any other action authorized to be taken by or on behalf
      of the holders of any specified aggregate principal amount of the Notes
      under any other provision of this Indenture or under applicable law; or

            (5) to take any other action authorized by this Indenture or under
      applicable law.

      SECTION 10.2 CALL OF MEETINGS BY TRUSTEE. The Trustee may at any time call
a meeting of Noteholders to take any action specified in Section 10.1, to be
held at such time and at such place in the Borough of Manhattan, The City of New
York, New York, as the Trustee shall determine. Notice of every meeting of the
Noteholders, setting forth the time and the place of such meeting and in general
terms the action proposed to be taken at such meeting and the establishment of
any record date pursuant to Section 9.1, shall be mailed to holders of Notes at
their addresses as they shall appear on the Note register. Such notice shall
also be mailed to the Company. Such notices shall be mailed not less than twenty
(20) nor more than ninety (90) days prior to the date fixed for the meeting.

      Any meeting of Noteholders shall be valid without notice if the holders of
all Notes then outstanding are present in person or by proxy or if notice is
waived before or after the meeting by the holders of all Notes outstanding, and
if the Company and the Trustee are either present by duly authorized
representatives or have, before or after the meeting, waived notice.

      SECTION 10.3 CALL OF MEETINGS BY COMPANY OR NOTEHOLDERS. In case at any
time the Company, pursuant to a resolution of its Board of Directors, or the
holders of at least 10% in aggregate principal amount of the Notes then
outstanding, shall have requested the Trustee to call a meeting of Noteholders,
by written request setting forth in reasonable detail the action proposed to be
taken at the meeting, and the Trustee shall not have mailed the notice of such
meeting within twenty (20) days after receipt of such request, then the Company
or such Noteholders may determine the time and the place for such meeting and
may call such meeting

                                       52
<PAGE>

to take any action authorized in Section 10.1, by mailing notice thereof as
provided in Section 10.2.

      SECTION 10.4 QUALIFICATIONS FOR VOTING. To be entitled to vote at any
meeting of Noteholders a person shall (a) be a holder of one or more Notes on
the record date pertaining to such meeting or (b) be a person appointed by an
instrument in writing as proxy by a holder of one or more Notes. The only
persons who shall be entitled to be present or to speak at any meeting of
Noteholders shall be the persons entitled to vote at such meeting and their
counsel and any representatives of the Trustee and its counsel and any
representatives of the Company and its counsel.

      SECTION 10.5 REGULATIONS. Notwithstanding any other provisions of this
Indenture, the Trustee may make such reasonable regulations as it may deem
advisable for any meeting of Noteholders, in regard to proof of the holding of
Notes and of the appointment of proxies, and in regard to the appointment and
duties of inspectors of votes, the submission and examination of proxies,
certificates and other evidence of the right to vote, and such other matters
concerning the conduct of the meeting as it shall think fit.

      The Trustee shall, by an instrument in writing, appoint a temporary
chairman of the meeting, unless the meeting shall have been called by the
Company or by Noteholders as provided in Section 10.3, in which case the Company
or the Noteholders calling the meeting, as the case may be, shall in like manner
appoint a temporary chairman. A permanent chairman and a permanent secretary of
the meeting shall be elected by vote of the holders of a majority in principal
amount of the Notes represented at the meeting and entitled to vote at the
meeting.

      Subject to the provisions of Section 9.4, at any meeting each Noteholder
or proxyholder shall be entitled to one vote for each $50 principal amount of
Notes held or represented by him, her or it; provided, however, that no vote
shall be cast or counted at any meeting in respect of any Note challenged as not
outstanding and ruled by the chairman of the meeting to be not outstanding. The
chairman of the meeting shall have no right to vote other than by virtue of
Notes held by him, her or it or instruments in writing as aforesaid duly
designating him, her or it as the proxy to vote on behalf of other Noteholders.
Any meeting of Noteholders duly called pursuant to the provisions of Section
10.2 or 10.3 may be adjourned from time to time by the holders of a majority of
the aggregate principal amount of Notes represented at the meeting, whether or
not constituting a quorum, and the meeting may be held as so adjourned without
further notice.

      SECTION 10.6 VOTING. The vote upon any resolution submitted to any meeting
of Noteholders shall be by written ballot on which shall be subscribed the
signatures of the holders of Notes or of their representatives by proxy and the
principal amount of the Notes held or represented by them. The permanent
chairman of the meeting shall appoint two inspectors of votes who shall count
all votes cast at the meeting for or against any resolution and who shall make
and file with the secretary of the meeting their verified written reports in
duplicate of all votes cast at the meeting. A record in duplicate of the
proceedings of each meeting of Noteholders shall be prepared by the secretary of
the meeting and there shall be attached to said record the original reports of
the inspectors of votes on any vote by ballot taken thereat and

                                       53
<PAGE>

affidavits by one or more persons having knowledge of the facts setting forth a
copy of the notice of the meeting and showing that said notice was mailed as
provided in Section 10.2. The record shall show the principal amount of the
Notes voting in favor of or against any resolution. The record shall be signed
and verified by the affidavits of the permanent chairman and secretary of the
meeting and one of the duplicates shall be delivered to the Company and the
other to the Trustee to be preserved by the Trustee, the latter to have attached
thereto the ballots voted at the meeting.

      Any record so signed and verified shall be conclusive evidence of the
matters therein stated.

      SECTION 10.7 NO DELAY OF RIGHTS BY MEETING. Nothing in this Article X
contained shall be deemed or construed to authorize or permit, by reason of any
call of a meeting of Noteholders or any rights expressly or impliedly conferred
hereunder to make such call, any hindrance or delay in the exercise of any right
or rights conferred upon or reserved to the Trustee or to the Noteholders under
any of the provisions of this Indenture or of the Notes.

                                   ARTICLE XI

                            SUPPLEMENTAL INDENTURES

      SECTION 11.1 SUPPLEMENTAL INDENTURES WITHOUT CONSENT OF NOTEHOLDERS. The
Company, when authorized by the resolutions of the Board of Directors, and the
Trustee may from time to time and at any time enter into an indenture or
indentures supplemental hereto for one or more of the following purposes:

            (a) to make provision with respect to the conversion rights of the
holders of Notes pursuant to the requirements of Section 15.6;

            (b) subject to Article IV, to convey, transfer, assign, mortgage or
pledge to the Trustee as security for the Notes, any property or assets;

            (c) to evidence the succession of another corporation to the
Company, or successive successions, and the assumption by the successor
corporation of the covenants, agreements and obligations of the Company pursuant
to Article XII;

            (d) to add to the covenants of the Company such further covenants,
restrictions or conditions as the Board of Directors and the Trustee shall
consider to be for the benefit of the holders of Notes, and to make the
occurrence, or the occurrence and continuance, of a default in any such
additional covenants, restrictions or conditions a default or an Event of
Default permitting the enforcement of all or any of the several remedies
provided in this Indenture as herein set forth; provided, however, that in
respect of any such additional covenant, restriction or condition such
supplemental indenture may provide for a particular period of grace after
default (which period may be shorter or longer than that allowed in the case of
other defaults) or may provide for an immediate enforcement upon such default or
may limit the remedies available to the Trustee upon such default;

                                       54
<PAGE>

            (e) to provide for the issuance under this Indenture of Notes in
coupon form (including Notes registrable as to principal only) and to provide
for exchange of such Notes with the Notes issued hereunder in fully registered
form and to make all appropriate changes for such purpose;

            (f) to cure any ambiguity or to correct or supplement any provision
contained herein or in any supplemental indenture which may be defective or
inconsistent with any other provision contained herein or in any supplemental
indenture, or to make such other provisions in regard to matters or questions
arising under this Indenture which shall not materially adversely affect the
interests of the holders of the Notes;

            (g) to evidence and provide for the acceptance of appointment
hereunder by a successor Trustee with respect to the Notes; or

            (h) to modify, eliminate or add to the provisions of this Indenture
to such extent as shall be necessary to effect the qualifications of this
Indenture under the Trust Indenture Act, or under any similar federal statute
hereafter enacted.

      The Trustee is hereby authorized to join with the Company in the execution
of any such supplemental indenture, to make any further appropriate agreements
and stipulations which may be therein contained and to accept the conveyance,
transfer and assignment of any property thereunder, but the Trustee shall not be
obligated to, but may in its discretion, enter into any supplemental indenture
which affects the Trustee's own rights, duties or immunities under this
Indenture or otherwise.

      Any supplemental indenture authorized by the provisions of this Section
11.1 may be executed by the Company and the Trustee without the consent of the
holders of any of the Notes at the time outstanding, notwithstanding any of the
provisions of Section 11.2.

      SECTION 11.2 SUPPLEMENTAL INDENTURES WITH CONSENT OF NOTEHOLDERS. With the
consent (evidenced as provided in Article IX) of the holders of not less than a
majority in aggregate principal amount of the Notes at the time outstanding
(determined in accordance with Section 9.4), the Company, when authorized by the
resolutions of the Board of Directors, and the Trustee may from time to time and
at any time 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 any supplemental indenture or of
modifying in any manner the rights of the holders of the Notes; provided,
however, that no such supplemental indenture shall, in each case, without the
consent of the holder of each Note so affected: (i) extend the fixed maturity of
any Note, or reduce the rate or extend the time of payment of interest thereon,
or reduce the principal amount thereof or premium, if any, thereon, or reduce
any amount payable on redemption or purchase thereof, or change the obligation
of the Company to redeem any Note on a redemption date in a manner adverse to
the holders of Notes, or change the obligation of the Company to purchase any
Note upon the happening of a Change in Control in a manner adverse to the
holders of Notes, or impair or adversely affect the right of any Noteholder to
institute suit for the payment thereof, or make the principal thereof or
interest or premium, if any, thereon

                                       55
<PAGE>

payable in any coin or currency other than that provided in the Notes, or change
or impair in a manner adverse to the Noteholders the right to convert the Notes
into Common Stock or reduce the number of shares of Common Stock or any other
property receivable by a Noteholder upon conversion subject to the terms set
forth herein, including Section 15.6, or modify the provisions of this Indenture
with respect to the subordination of the Notes in a manner adverse to the
Noteholders; or (ii) reduce the aforesaid percentage of Notes, the holders of
which are required to consent to any supplemental indenture, waiver or
modification of any of the provisions of this Section or Section 7.7.

      Up to and prior to the close of business on the Exchange Date, only the
holders of shares of Preferred Stock shall be entitled to approve any amendments
or supplements to this Indenture as provided above. Any such vote of the holders
of shares of Preferred Stock shall require the affirmative vote or consent of
the holders of at least 66 2/3 percent (unless a higher percentage shall then be
required by applicable law) of all outstanding shares of Preferred Stock voting
separately as a class.

      Upon the written request of the Company, accompanied by a copy of the
resolutions of the Board of Directors certified by its Secretary or Assistant
Secretary authorizing the execution of any such supplemental indenture, and upon
the filing with the Trustee of evidence of the consent of Noteholders as
aforesaid, the Trustee shall join with the Company in the execution of such
supplemental indenture unless such supplemental indenture affects the Trustee's
own rights, duties or immunities under this Indenture or otherwise, in which
case the Trustee may in its discretion, but shall not be obligated to, enter
into such supplemental indenture.

      It shall not be necessary for the consent of the Noteholders under this
Section 11.2 to approve the particular form of any proposed supplemental
indenture, but it shall be sufficient if such consent shall approve the
substance thereof.

      SECTION 11.3 EFFECT OF SUPPLEMENTAL INDENTURES. Any supplemental indenture
executed pursuant to the provisions of this Article XI shall comply with the
Trust Indenture Act, as then in effect. Upon the execution of any supplemental
indenture pursuant to the provisions of this Article XI, this Indenture shall be
and be deemed to be modified and amended in accordance therewith and the
respective rights, limitation of rights, obligations, duties and immunities
under this Indenture of the Trustee, the Company and the holders of Notes shall
thereafter be determined, exercised and enforced hereunder subject in all
respects to such modifications and amendments and all the terms and conditions
of any such supplemental indenture shall be and be deemed to be part of the
terms and conditions of this Indenture for any and all purposes.

      SECTION 11.4 NOTATION ON NOTES. Notes authenticated and delivered after
the execution of any supplemental indenture pursuant to the provisions of this
Article XI may bear a notation in form approved by the Trustee as to any matter
provided for in such supplemental indenture. If the Company or the Trustee shall
so determine, new Notes so modified as to conform, in the opinion of the Trustee
and the Board of Directors, to any modification of this Indenture contained in
any such supplemental indenture may, at the Company's expense, be prepared and
executed by the Company, authenticated by the Trustee (or an authenticating
agent duly

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appointed by the Trustee pursuant to Section 16.11) and delivered in exchange
for the Notes then outstanding, upon surrender of such Notes then outstanding.

      SECTION 11.5 EVIDENCE OF COMPLIANCE OF SUPPLEMENTAL INDENTURE TO BE
FURNISHED TRUSTEE. The Trustee, subject to the provisions of Sections 8.1 and
8.2, may receive an Officers' Certificate and an Opinion of Counsel as
conclusive evidence that any supplemental indenture executed pursuant hereto
complies with the requirements of this Article XI.

                                  ARTICLE XII

                         MERGER, SALE OR CONSOLIDATION

      SECTION 12.1 LIMITATION ON MERGER, SALE OR CONSOLIDATION. The Company
shall not consolidate with or merge with or into another person or permit any
other person to consolidate with or merge with or into the Company, or sell,
lease, convey or transfer all or substantially all of its assets (computed on a
consolidated basis), whether in a single transaction or a series of related
transactions, to another person or group of affiliated persons, unless (i)
either (A) in the case of a consolidation or merger, the Company is the
surviving entity or (B) the resulting, surviving or transferee entity is a
corporation organized under the laws of the United States, any state thereof or
the District of Columbia and expressly assumes by supplemental indenture all of
the obligations of the Company in connection with the Notes and the Indenture;
(ii) no default or Event of Default shall exist or shall occur immediately after
giving effect on a pro forma basis to such transaction; and (iii) the Company
has delivered to the Trustee an Officers' Certificate and an Opinion of Counsel,
each stating that such consolidation, merger, sale, lease, conveyance or
transfer and, if a supplemental indenture is required, such supplemental
indenture comply with the Indenture and that all conditions precedent relating
to such transactions have been satisfied.

      SECTION 12.2 SUCCESSOR CORPORATION TO BE SUBSTITUTED. In case of any such
consolidation, merger, sale, conveyance or lease and upon the assumption by the
successor corporation, by supplemental indenture, executed and delivered to the
Trustee and satisfactory in form to the Trustee, of the due and punctual payment
of the principal of and premium, if any, and interest on all of the Notes and
the due and punctual performance of all of the covenants and conditions of this
Indenture to be performed by the Company, such successor corporation shall
succeed to and be substituted for the Company, with the same effect as if it had
been named herein as the party of the first part. Such successor corporation
thereupon may cause to be signed, and may issue either in its own name or in the
name of International Shipholding Corporation any or all of the Notes issuable
hereunder which theretofore shall not have been signed by the Company and
delivered to the Trustee; and, upon the order of such successor corporation
instead of the Company and subject to all the terms, conditions and limitations
in this Indenture prescribed, the Trustee shall authenticate and shall deliver,
or cause to be authenticated and delivered, any Notes which previously shall
have been signed and delivered by the officers of the Company to the Trustee for
authentication, and any Notes which such successor corporation thereafter shall
cause to be signed and delivered to the Trustee for that purpose. All the Notes
so issued shall in all respects have the same legal rank and benefit under this
Indenture as the Notes theretofore or thereafter issued in accordance with the
terms of this Indenture as though all of such Notes had been issued at the date
of the execution hereof. In the event of any

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<PAGE>

such consolidation, merger, sale or conveyance (but not in the event of such
lease), the person named as the "Company" in the first paragraph of this
Indenture, or any successor which shall thereafter have become such in the
manner prescribed in this Article XII and which shall have transferred its
rights and obligations hereunder to another successor in the manner prescribed
in this Article XII, may be dissolved, wound up and liquidated at any time
thereafter and such person shall be released from its liabilities as obligor and
maker of the Notes and from its obligations under this Indenture.

      In case of any such consolidation, merger, sale, conveyance or lease, such
changes in phraseology and form (but not in substance) may be made in the Notes
thereafter to be issued as may be appropriate.

                                  ARTICLE XIII

                    SATISFACTION AND DISCHARGE OF INDENTURE

      SECTION 13.1 DISCHARGE OF INDENTURE. When (a) the Company shall deliver to
the Trustee for cancellation all Notes theretofore authenticated (other than any
Notes which have been destroyed, lost or stolen and in lieu of or in
substitution for which other Notes shall have been authenticated and delivered)
and not theretofore canceled, or (b) all the Notes not theretofore canceled or
delivered to the Trustee for cancellation shall have become due and payable, or
are by their terms to become due and payable within one year or are to be called
for redemption within one year under arrangements satisfactory to the Trustee
for the giving of notice of redemption, and the Company shall irrevocably
deposit with the Trustee, in trust, funds sufficient to pay at maturity or upon
redemption of all of the Notes (other than any Notes which shall have been
mutilated, destroyed, lost or stolen and in lieu of or in substitution for which
other Notes shall have been authenticated and delivered) not theretofore
canceled or delivered to the Trustee for cancellation, including principal and
premium, if any, and interest due or to become due to such date of maturity or
redemption date, as the case may be, and if in either case the Company shall
also pay or cause to be paid all other sums payable hereunder by the Company,
then this Indenture shall cease to be of further effect with respect to the
Notes (except as to (i) remaining rights of registration of transfer,
substitution and exchange and conversion of Notes and maintenance of an office
therefor, (ii) rights hereunder of Noteholders to receive payments of principal
of and premium, if any, and interest on, the Notes and the other rights, duties
and obligations of Noteholders, as beneficiaries hereof with respect to the
amounts, if any, so deposited with the Trustee and (iii) the rights, obligations
and immunities of the Trustee hereunder), and the Trustee, on demand of the
Company accompanied by an Officers' Certificate and an Opinion of Counsel as
required by Section 16.5 and at the cost and expense of the Company, shall
execute proper instruments acknowledging satisfaction of and discharging this
Indenture; the Company, however, hereby agreeing to reimburse the Trustee for
any costs or expenses thereafter reasonably and properly incurred by the Trustee
and to compensate the Trustee for any services thereafter reasonably and
properly rendered by the Trustee in connection with this Indenture or the Notes.

      SECTION 13.2 DEPOSITED MONIES TO BE HELD IN TRUST BY TRUSTEE. Subject to
Section 13.4, all monies deposited with the Trustee pursuant to Section 13.1
shall be held in trust and

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<PAGE>

applied by it to the payment, notwithstanding the provisions of Article IV,
either directly or through any paying agent (including the Company if acting as
its own paying agent), to the holders of the particular Notes for the payment or
redemption of which such monies have been deposited with the Trustee, of all
sums due and to become due thereon for principal and interest and premium, if
any.

      SECTION 13.3 PAYING AGENT TO REPAY MONIES HELD. Upon the satisfaction and
discharge of this Indenture, all monies then held by any paying agent of the
Notes (other than the Trustee) shall, upon demand of the Company, be repaid to
it or paid to the Trustee, and thereupon such paying agent shall be released
from all further liability with respect to such monies.

      SECTION 13.4 RETURN OF UNCLAIMED MONIES. Subject to the requirements of
applicable law, any monies deposited with or paid to the Trustee or any paying
agent for payment of the principal of, premium, if any, or interest on Notes and
not applied but remaining unclaimed by the holders of Notes for two years after
the date upon which the principal of, premium, if any, or interest on such
Notes, as the case may be, shall have become due and payable, shall be returned
to the Company by the Trustee or any paying agent upon the Company's request and
all liability or responsibility of the Trustee or any paying agent shall
thereupon cease with respect to such monies; and the holder of any of the Notes
shall thereafter have the right to look only to the Company for any payment
which such holder may be entitled to collect unless an applicable abandoned
property law designates another person.

      SECTION 13.5 REINSTATEMENT. If (i) the Trustee or the paying agent is
unable to apply any money in accordance with Section 13.2 by reason of any order
or judgment of any court or governmental authority enjoining, restraining or
otherwise prohibiting such application and (ii) the holders of at least a
majority in principal amount of the then outstanding Notes so request by written
notice to the Trustee, the Company's obligations under this Indenture and the
Notes shall be revived and reinstated as though no deposit had occurred pursuant
to Section 13.1 until such time as the Trustee or the paying agent is permitted
to apply all such money in accordance with Section 13.2; provided, however, that
if the Company makes any payment of interest on or principal of any Note
following the reinstatement of its obligations, the Company shall be subrogated
to the rights of the holders of such Notes to receive such payment from the
money held by the Trustee or paying agent.

                                  ARTICLE XIV

                    IMMUNITY OF INCORPORATORS, STOCKHOLDERS,
                             OFFICERS AND DIRECTORS

      SECTION 14.1 INDENTURE AND NOTES SOLELY CORPORATE OBLIGATIONS. No recourse
for the payment of the principal of or premium, if any, or interest on any Note,
or for any claim based thereon or otherwise in respect thereof, and no recourse
under or upon any obligation, covenant or agreement of the Company in this
Indenture or in any supplemental indenture or in any Note, or because of the
creation of any indebtedness represented thereby, shall be had against any
incorporator, stockholder, employee, agent, officer or director or subsidiary,
as such, past, present or future, of the Company or of any successor
corporation, either directly or through the

                                       59
<PAGE>

Company or any successor corporation, whether by virtue of any constitution,
statute or rule of law, or by the enforcement of any assessment or penalty or
otherwise; it being expressly understood that all such liability is hereby
expressly waived and released as a condition of, and as a consideration for, the
execution of this Indenture and the issue of the Notes.

                                   ARTICLE XV

                              CONVERSION OF NOTES

      SECTION 15.1 HOLDER'S RIGHT TO CONVERT. Subject to and upon compliance
with the provisions of this Indenture, the holder of any Note shall have, at
his, her or its option, the right, at any time on or prior to the close of
business on the Maturity Date (except that, with respect to any Note or portion
of a Note which shall be called for redemption pursuant to Section 3.1 or 3.2,
such right shall terminate at the close of business on the Business Day
immediately preceding the date fixed for redemption of such Note or portion of a
Note unless the Company shall default in payment of the amount due upon
redemption thereof, in which case such right shall terminate upon payment of the
amount due upon such redemption), to convert the principal amount of any such
Note, or any portion of such principal amount which is $50 or an integral
multiple thereof, into that number of fully paid and non-assessable shares of
Common Stock (as such shares shall then be constituted) obtained by dividing the
principal amount of the Note or portion thereof surrendered for conversion by
the Conversion Price in effect at such time, by surrender of the Note so to be
converted in whole or in part in the manner provided in Section 15.2. A holder
of Notes is not entitled to any rights of a holder of Common Stock until such
holder has converted his, her or its Notes to Common Stock, and only to the
extent such Notes are deemed to have been converted to Common Stock under this
Article XV.

      SECTION 15.2 EXERCISE OF CONVERSION RIGHT; ISSUANCE OF COMMON STOCK ON
CONVERSION; NO ADJUSTMENT FOR INTEREST OR DIVIDENDS. In order to exercise the
conversion right with respect to any Note held in certificated form, the holder
of any such Note to be converted in whole or in part shall surrender such Note,
duly endorsed, at the office or agency maintained by the Company pursuant to
Section 5.2, accompanied by the funds, if any, required by the last paragraph of
this Section 15.2, and shall give written notice of conversion in substantially
the form provided on the reverse of the form of Note attached hereto as Exhibit
A (or such other notice which is acceptable to the Company) to such office or
agency that the holder elects to convert such Note or such portion thereof
specified in such notice. Such notice shall also state the name or names (with
addresses) in which the certificate or certificates for shares of Common Stock
which shall be issuable on such conversion shall be issued, and shall be
accompanied by payment of any transfer taxes required pursuant to Section 15.7.
Each such Note surrendered for conversion shall, unless the shares of Common
Stock issuable on conversion are to be issued in the same name in which such
Notes are registered, be duly endorsed by, or be accompanied by instruments of
transfer in form satisfactory to the Company duly executed by, the holder or
his, her or its duly authorized attorney. In order to exercise the conversion
right with respect to any Notes represented by a Global Note, the holder of the
Note to be converted shall comply with the procedures established by the
Depositary for conversion.

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<PAGE>

      As promptly as practicable after satisfaction of the requirements for
conversion set forth above, the Company shall issue and shall deliver to such
holder or, if shares issuable on conversion are to be issued in a name other
than that of the Noteholder (as if such transfer were a transfer of the Note or
Notes (or portion thereof) so converted), to such other person, at the office or
agency maintained by the Company for such purpose pursuant to Section 5.2, a
certificate or certificates representing the number of shares of Common Stock
issuable upon the conversion of such Note or portion thereof in accordance with
the provisions of this Article XV and a check or cash in respect of any
fractional share of Common Stock arising upon such conversion, as provided in
Section 15.3 (which payment, if any, shall be paid no later than five Business
Days after satisfaction of the requirements for conversion set forth above). In
the event any Note of a denomination greater than $50 shall be surrendered for
partial conversion, the Company shall, subject to Section 2.3, execute and the
Trustee shall authenticate and deliver to the holder of the Note so surrendered,
without charge to him, her or it, a new Note or Notes in an aggregate principal
amount equal to the unconverted portion of the surrendered Note.

      Each conversion pursuant to Section 15.1 shall be deemed to have been
effected on the date on which the requirements set forth above in this Section
15.2 or the requirements of the Depositary, as the case may be, have been
satisfied as to such Note (or portion thereof), and the person in whose name any
certificate or certificates for shares of Common Stock issuable upon such
conversion shall be deemed to have become on said date the holder of record of
the shares represented thereby; provided, however, that if any such surrender
occurs on any date when the stock transfer books of the Company shall be closed,
the conversion shall be effected on the next succeeding day on which such stock
transfer books are open, and the person in whose name the certificates are to be
issued shall be the record holder thereof on such date for all purposes, but
such conversion shall be at the Conversion Price in effect on the date upon
which such Note shall have been surrendered. Upon such conversion, the Company
will be deemed to have satisfied its obligation to pay in full the principal of,
premium, if any, and any accrued and unpaid interest with respect to such Note.

      Upon the conversion of a Note represented by a Global Note, the Trustee,
or the Custodian at the direction of the Trustee, shall make a notation on such
Global Note as to the reduction in the principal amount represented thereby.

      In the case of any Note or portion thereof which is converted after any
record date for an interest payment and prior to the close of business on the
Business Day immediately preceding the corresponding interest payment date, the
interest payment due on such payment date shall be payable on such interest
payment date to the holder of record of such Note or portion thereof as of such
record date notwithstanding such conversion; provided that any Note or portion
thereof surrendered for conversion during the period between the close of
business on the record date for an interest payment and prior to the close of
business on the Business Day immediately preceding the corresponding interest
payment date shall be accompanied by payment of an amount equal to the interest
payable on such interest payment date on the principal amount of Notes being
converted; provided, however, that no such payment need be made if there shall
exist at the time of conversion a default in the payment of interest on the
Notes or such Note or portion thereof being converted shall have been called for
redemption pursuant to Section 3.1 or 3.2 and a notice of redemption has been
sent to the holders of the Notes pursuant to Section 3.3.

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<PAGE>

The Trustee shall not be required to accept for conversion any Notes not
accompanied by any payment required by the preceding sentence. Except as
provided above in this Section 15.2, no payment or adjustment shall be made for
interest accrued on any Note surrendered for conversion or on account of any
dividends on any shares of Common Stock issued upon the conversion of such Note.

      SECTION 15.3 CASH PAYMENTS IN LIEU OF FRACTIONAL SHARES. No fractional
shares of Common Stock or scrip representing fractional shares shall be issued
upon conversion of Notes. If any fractional share of Common Stock otherwise
would be issuable upon the conversion of any Note or Notes (or portion thereof),
the Company shall make a payment therefor in cash to the holder of such
converted Notes based on the then-current market value of a whole share of
Common Stock. For purposes of this Section 15.3, the then-current market value
of a whole share of Common Stock shall be the Closing Price of the Common Stock
on the first Trading Day immediately preceding the day on which the Notes (or
specified portions thereof) are deemed to have been converted and such Closing
Price shall be determined as provided in Section 15.5(h)(1). If more than one
Note shall be surrendered for conversion at one time by the same holder, the
number of full shares of Common Stock which shall be issuable upon conversion
shall be computed on the basis of the aggregate principal amount of the Notes
(or specified portions thereof to the extent permitted hereby) so surrendered
for conversion.

      SECTION 15.4 CONVERSION PRICE. The conversion price shall be as specified
in the form of Note (herein called the "Conversion Price") attached as Exhibit A
hereto, subject to adjustment as provided in this Article XV.

      SECTION 15.5 ADJUSTMENT OF CONVERSION PRICE. The Conversion Price shall be
adjusted from time to time by the Company as follows:

            (a) In the event the Company shall hereafter pay a dividend in
shares of Common Stock or make a distribution in shares of Common Stock to all
holders of Common Stock, the Conversion Price in effect at the opening of
business on the Business Day immediately following the Record Date fixed for the
determination of stockholders 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 such Record Date and the denominator shall be the
sum of such number of shares of Common Stock and the total number of shares of
Common Stock constituting such dividend or other distribution. If any dividend
or distribution of the type described in this Section 15.5(a) is declared but
not so paid or made, the Conversion Price shall again be adjusted to the
Conversion Price which would have been in effect if such dividend or
distribution had not been declared.

            (b) In the event the Company shall issue rights or warrants to all
holders of its outstanding shares of Common Stock entitling them (for a period
expiring within forty-five (45) days after the Record Date fixed for the
determination of stockholders entitled to receive such rights or warrants) to
subscribe for or purchase shares of Common Stock at a price per share less than
the Current Market Price on the Record Date fixed for the determination of
stockholders entitled to receive such rights or warrants, the Conversion Price
shall be reduced so that the Conversion Price shall equal the price determined
by multiplying the Conversion Price in effect

                                       62
<PAGE>

at the opening of business on the Business Day immediately following such Record
Date by a fraction of which the numerator shall be the number of shares of
Common Stock outstanding at the close of business on the Record Date plus the
number of shares which the aggregate subscription, purchase or exercise price of
the shares of Common Stock called for by all such issued rights or warrants
would purchase at such Current Market Price, and of which the denominator shall
be the number of shares of Common Stock outstanding at the close of business on
the Record Date plus the total number of additional shares of Common Stock so
offered for subscription or purchase. Such adjustment shall become effective at
the opening of business on the Business Day immediately following the Record
Date fixed for determination of stockholders entitled to receive such rights or
warrants. To the extent that shares of Common Stock are not delivered pursuant
to such rights or warrants, upon the expiration or termination of such rights or
warrants the Conversion Price shall be readjusted to the Conversion Price which
would have been in effect had the adjustments made upon the issuance of such
rights or warrants been made on the basis of only the number of shares of Common
Stock actually delivered upon the issuance of such rights or warrants. In the
event that such rights or warrants are not so issued, the Conversion Price shall
again be adjusted to be the Conversion Price which would have been in effect if
the Record Date fixed for the determination of stockholders entitled to receive
such rights or warrants had not been fixed. In determining whether any rights or
warrants entitle the holders to subscribe for or purchase shares of Common Stock
at less than the Current Market Price, and in determining the aggregate
subscription, purchase or exercise price of such shares of Common Stock, there
shall be taken into account any consideration received for such rights or
warrants, the value of such consideration, if other than cash, to be determined
by the Board of Directors in its sole discretion.

            (c) In the event the 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 Business Day immediately following
the day upon which such subdivision becomes effective shall be proportionately
reduced, and conversely, in the event the outstanding shares of Common Stock
shall be combined into a smaller number of shares of Common Stock, the
Conversion Price in effect at the opening of business on the Business Day
immediately following the day upon which such combination becomes effective
shall be proportionately increased.

            (d) In the event the Company shall, by dividend or otherwise,
distribute to all holders of its Common Stock shares of any class of capital
stock of the Company (other than any dividends or distributions to which Section
15.5(a) applies) or evidences of its indebtedness, cash or other assets
(including securities, but excluding (1) any rights or warrants referred to in
Section 15.5(b) or (2) dividends and distributions paid exclusively in cash
(such shares of capital stock, evidences of indebtedness, cash or other assets
hereinafter in this Section 15.5(d) referred to as the "Securities")), then, in
each such case, the Conversion Price shall be reduced so that the Conversion
Price shall be equal to the price determined by multiplying the Conversion Price
in effect immediately prior to the close of business on the Record Date with
respect to such distribution by a fraction of which the numerator shall be the
Current Market Price (determined as provided in Section 15.5(h)(2)) on such
Record Date less the fair market value (as determined by the Board of Directors,
whose determination shall be conclusive and described in a Board Resolution) on
such Record Date of the portion of the Securities so distributed applicable to
one

                                       63
<PAGE>

share of Common Stock and the denominator shall be such Current Market Price,
such reduction to become effective at the opening of business on the Business
Day immediately following such Record Date; provided, however, that in the event
the then fair market value (as so determined by the Board of Directors) of the
portion of the Securities so distributed applicable to one share of Common Stock
is equal to or greater than the Current Market Price on the Record Date, in lieu
of the foregoing adjustment, adequate provision shall be made so that each
Noteholder shall have the right to receive upon conversion of a Note (or any
portion thereof) the amount of Securities such holder would have received had
such holder converted such Note (or portion thereof) immediately prior to such
Record Date. In the event that such dividend or distribution is not so paid or
made, the Conversion Price shall again be adjusted to be the Conversion Price
which would have been in effect if such dividend or distribution had not been
declared. If the Board of Directors determines the fair market value of any
distribution for purposes of this Section 15.5(d) by reference to the trading
market for any securities comprising all or part of such distribution, it must
in doing so consider the prices in such market over the same period (the
"Reference Period") used in computing the Current Market Price pursuant to
Section 15.5(h)(2) to the extent possible, unless the Board of Directors in a
Board Resolution determines in good faith that determining the fair market value
during the Reference Period would not be in the best interest of the
Noteholders.

      For purposes of this Section 15.5(d) and Sections 15.5(a) and (b), any
dividend or distribution to which this Section 15.5(d) is applicable that also
includes shares of Common Stock to which Section 15.5(a) applies, or rights or
warrants to subscribe for or purchase shares of Common Stock to which Section
15.5(b) applies (or both), shall be deemed instead to be (1) a dividend or
distribution of the evidences of indebtedness, assets, shares of capital stock,
rights or warrants other than such shares of Common Stock to which 15.5(a)
applies or rights or warrants to which Section 15.5(b) applies (and any
Conversion Price reduction required by this Section 15.5(d) with respect to such
dividend or distribution shall then be made) immediately followed by (2) a
dividend or distribution of such shares of Common Stock or such rights or
warrants (and any further Conversion Price reduction required by Sections
15.5(a) and (b) with respect to such dividend or distribution shall then be
made, except (A) the Record Date of such dividend or distribution shall be
substituted as "the Record Date fixed for the determination of stockholders
entitled to receive such dividend or other distribution" and "Record Date"
within the meaning of Section 15.5(a) and as "the Record Date fixed for the
determination of stockholders entitled to receive such rights or warrants" and
"Record Date" within the meaning of Section 15.5(b) and (B) any shares of Common
Stock included in such dividend or distribution shall not be deemed "outstanding
at the close of business on such Record Date" within the meaning of Section
15.5(a).

      In the event that the Company implements a stockholders' rights plan (a
"New Rights Plan") or amends any existing stockholders' rights plan (as amended,
an "Amended Rights Plan" and together with any New Rights Plan, a "Rights
Plan"), such Rights Plan shall provide that upon conversion of the Notes the
holders will receive, in addition to the Common Stock issuable upon such
conversion, the rights under such Rights Plan (notwithstanding the occurrence of
an event causing such rights to separate from the Common Stock at or prior to
the time of conversion), unless prior to conversion of the Preferred Stock the
rights have expired, terminated or been redeemed. Any distribution of rights or
warrants pursuant to a Rights Plan complying

                                       64
<PAGE>

with the requirements set forth in the immediately preceding sentence of this
paragraph shall not constitute a distribution of rights or warrants for purposes
of this Section 15.5(d). Rights or warrants distributed by the Company to all
holders of Common Stock entitling the holders thereof to subscribe for or
purchase shares of the Company's capital stock (either initially or under
certain circumstances), which rights or warrants, until the occurrence of a
specified event or events ("Trigger Event"), (i) are deemed to be transferred
with such shares of Common Stock; (ii) are not exercisable; and (iii) are also
issued in respect of future issuances of Common Stock, shall be deemed not to
have been distributed for purposes of this Section 15.5(d) (and no adjustment to
the Conversion Price under this Section 15.5(d) will be required) until the
occurrence of the earliest Trigger Event. If such right or warrant is subject to
subsequent events, upon the occurrence of which such right or warrant shall
become exercisable to purchase different securities, evidences of indebtedness
or other assets or entitle the holder to purchase a different number or amount
of the foregoing or to purchase any of the foregoing at a different purchase
price, then the occurrence of each such event shall be deemed, for the purposes
of this Section 15.5(d), to be the date of issuance and record date with respect
to a new right or warrant (and a termination or expiration of the existing right
or warrant without exercise by the holder thereof). In addition, in the event of
any distribution (or deemed distribution) of rights or warrants, or the
occurrence of any Trigger Event or other event (of the type described in the
preceding sentence) with respect thereto, that resulted in an adjustment to the
Conversion Price under this Section 15.5(d), (1) in the case of any such rights
or warrants which shall all have been redeemed or repurchased without exercise
by any holders thereof, the Conversion Price shall be readjusted upon such final
redemption or repurchase to give effect to such distribution or Trigger Event,
as the case may be, as though it were a cash distribution equal to the per share
redemption or repurchase price received by a holder of Common Stock with respect
to such rights or warrants (assuming such holder had retained such rights or
warrants) made to all holders of Common Stock as of the date of such redemption
or repurchase, and (2) in the case of such rights or warrants all of which shall
have expired or been terminated without exercise, the Conversion Price shall be
readjusted as if such rights and warrants had never been issued.

            (e) In the event the Company shall, by dividend or otherwise, make a
distribution to all holders of its Common Stock consisting exclusively of cash
(excluding any dividend or distribution made in connection with a merger or
consolidation to which Section 15.6 applies or as part of a distribution
referred to in Section 15.5(d)), in an amount that when combined with all other
distributions of cash to holders of its Common Stock (excluding any dividend or
distribution made in connection with a merger or consolidation to which Section
15.6 applies or as part of a distribution referred to in Section 15.5(d)) in
such calendar year exceeds on a per-share basis the greater of $0.50 per share
or three percent (3%) of the Current Market Price on the date prior to the date
of the declaration of such distribution, then, immediately after the close of
business on the Record Date with respect to such distribution, 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 close of
business on such Record Date by a fraction (i) the numerator of which shall be
equal to the Current Market Price on the Record Date less an amount equal to the
quotient of (x) the aggregate amount of such distribution and (y) the number of
shares of Common Stock outstanding on the Record Date and (ii) the denominator
of which shall be equal to the Current Market Price on such Record Date. In the
event that such dividend or distribution is not so paid or made, the Conversion
Price shall again be adjusted to be the

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Conversion Price which would have been in effect if such dividend or
distribution had not been declared.

            (f) In the event a tender offer made by the Company or any
Subsidiary for all or any portion of the Common Stock shall expire and such
tender offer (as amended upon the expiration thereof) shall require the payment
to stockholders of consideration (based on the acceptance (up to any maximum
specified in the terms of the tender offer) of Purchased Shares (as defined
below)) per share of Common Stock having a fair market value (as determined by
the Board of Directors, whose determination shall be conclusive and described in
a Board Resolution) that, as of the date upon which occurred the last time
tenders could have been made pursuant to such tender offer (the "Expiration
Time"), exceeds the Closing Price of a share of Common Stock on the Trading Day
next succeeding the Expiration Time then, immediately prior to the opening of
business on the Business Day immediately following the Expiration Time, the
Conversion Price shall be reduced so that the Conversion Price shall equal the
price determined by multiplying the Conversion Price in effect immediately prior
to the close of business on the date of the Expiration Time by a fraction of
which the numerator shall be the number of shares of Common Stock outstanding
(including any tendered shares) as of the Expiration Time multiplied by the
Current Market Price on the Trading Day next succeeding the Expiration Time and
the denominator shall be the sum of (x) the fair market value (as determined by
the Board of Directors, whose determination shall be conclusive and described in
a Board Resolution) of the aggregate consideration payable to stockholders based
on the acceptance (up to any maximum specified in the terms of the tender offer)
of all shares validly tendered 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 (y) the product of the number of shares of Common Stock
outstanding (less any Purchased Shares) at the Expiration Time and the Current
Market Price on the Trading Day next succeeding the Expiration Time, such
reduction (if any) to become effective at the opening of business on the
Business Day immediately following the Expiration Time. In the event that the
Company is obligated to purchase shares pursuant to any such tender offer, but
the Company is permanently prevented by applicable law from effecting any such
purchases or all such purchases are rescinded, the Conversion Price shall again
be adjusted to be the Conversion Price which would have been in effect if such
tender offer had not been made. If the application of this Section 15.5(f) to
any tender offer would result in an increase in the Conversion Price, no
adjustment shall be made for such tender offer under this Section 15.5(f).

            (g) In the event of a tender or exchange offer made by a person
other than the Company or any Subsidiary for an amount of Common Stock which
increases the offeror's ownership of Common Stock to more than 25% of the Common
Stock outstanding and shall involve the payment by such person of consideration
per share of Common Stock having a fair market value (as determined by the Board
of Directors, whose determination shall be conclusive, and described in a Board
Resolution) at the last time (the "Tender Expiration Time") tenders or exchanges
may be made pursuant to such tender or exchange offer (as amended) that exceeds
the Current Market Price on the Trading Day next succeeding the Tender
Expiration Time, and with respect to which, as of the Tender Expiration Time,
the Board of Directors is not recommending rejection of the offer, the
Conversion Price shall be reduced so that the Conversion Price shall equal the
price determined by multiplying the Conversion Price in effect immediately prior
to the Tender Expiration Time by a fraction of which the numerator shall be the
number of shares of

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<PAGE>

Common Stock outstanding (including any tendered or exchanged shares) as of the
Tender Expiration Time multiplied by the Current Market Price on the Trading Day
next succeeding the Tender Expiration Time and the denominator shall be the sum
of (x) the fair market value (determined as aforesaid) of the aggregate
consideration payable to stockholders 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 Tender Expiration Time (the
shares deemed so accepted, up to any such maximum, being referred to as the
"Tender Purchased Shares") and (y) the product of the number of shares of Common
Stock outstanding (less any Tender Purchased Shares) on the Tender Expiration
Time and the Current Market Price on the Trading Day next succeeding the Tender
Expiration Time, such reduction to become effective at the opening of business
on the Business Day immediately following the Tender Expiration Time. In the
event that such person is obligated to purchase shares pursuant to any such
tender or exchange offer, but such person is permanently prevented by applicable
law from effecting any such purchases or all such purchases are rescinded, the
Conversion Price shall again be adjusted to be the Conversion Price which would
have been in effect if such tender or exchange offer had not been made.
Notwithstanding the foregoing, the adjustment described in this Section 15.5(g)
shall not be made if, as of the Tender Expiration Time, the offering documents
with respect to such tender offer or exchange offer disclose a plan or intention
to cause the Company to engage in any transaction described in Article XII.

            (h) For purposes of this Section 15.5 and the other provisions of
this Indenture, the following terms shall have the meaning indicated:

                  (1) "Closing Price" with respect to any securities on any day
            shall mean the closing sale price regular way on such day or, in
            case no sale of such securities takes place on such day, the average
            of the reported closing bid and asked prices, regular way, in each
            case on the Nasdaq National Market or New York Stock Exchange, as
            applicable, or, if such security is not listed or admitted to
            trading on such Nasdaq National Market or New York Stock Exchange,
            on the principal national securities exchange, trading market or
            quotation system on which such security is quoted or listed or
            admitted to trading, or, if not quoted or listed or admitted to
            trading on any national securities exchange, trading market or
            quotation system, the average of the closing bid and asked prices of
            such security on the over-the-counter market on such day as reported
            by the National Quotation Bureau Incorporated, or a similar
            generally accepted reporting service, or if not so available, in
            such manner as furnished by any New York Stock Exchange member firm
            selected from time to time by the Board of Directors for that
            purpose, or a price determined in good faith by the Board of
            Directors, whose determination shall be conclusive and described in
            a Board Resolution.

                  (2) "Current Market Price" shall mean, subject to the second
            paragraph hereof, the lesser of (a) the Closing Price per share of
            Common Stock on the date in question and (b) the average of the
            daily Closing Prices per share of Common Stock for the ten (10)
            consecutive Trading Days immediately prior to the date in question;
            provided, however, that (1) if the "ex" date (as hereinafter
            defined) for any event (other than the issuance or distribution
            requiring such computation) that

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<PAGE>

            requires an adjustment to the Conversion Price pursuant to Section
            15.5(a), (b), (c), (d), (e), (f) or (g) occurs during such ten (10)
            consecutive Trading Days, 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, (2) if the "ex" date for any event (other than the
            issuance or distribution requiring such computation) that requires
            an adjustment to the Conversion Price pursuant to Section 15.5(a),
            (b), (c), (d), (e), (f) or (g) occurs on or after the "ex" date for
            the issuance or distribution requiring such computation and prior to
            the day 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, and (3) if the "ex" date for the issuance or
            distribution requiring such computation is prior to the day in
            question, after taking into account any adjustment required pursuant
            to clause (1) or (2) of this proviso, the Closing Price for each
            Trading Day on or after such "ex" date shall be adjusted by adding
            thereto the amount of any cash and the fair market value (as
            determined by the Board of Directors in a manner consistent with any
            determination of such value for purposes of Section 15.5(d), (f) or
            (g), whose determination shall be conclusive and described in a
            Board Resolution) of the evidences of indebtedness, shares of
            capital stock or assets being distributed applicable to one share of
            Common Stock as of the close of business on the day before such "ex"
            date.

      For purposes of any computation under Section 15.5(f) or (g), the Current
Market Price on any date shall be deemed to be the average of the daily Closing
Prices per share of Common Stock for such day and the next two succeeding
Trading Days; provided, however, that if the "ex" date for any event (other than
the tender offer requiring such computation) that requires an adjustment to the
Conversion Price pursuant to Section 15.5(a), (b), (c), (d), (e), (f) or (g)
occurs on or after the Expiration Time or the Tender Expiration Time, as the
case may be, for the tender or exchange offer requiring such computation and
prior to the day 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. For purposes of this
paragraph, the term "ex" date, (1) 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, (2)
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 (3) 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 or Tender
Expiration Time, as the case may be, of such offer. Notwithstanding the
foregoing, whenever successive adjustments to the Conversion Price are called
for pursuant to this Section 15.5, such adjustments shall be made to the Current
Market Price as may be necessary or

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<PAGE>

appropriate to effectuate the intent of this Section 15.5 and to avoid unjust or
inequitable results as determined in good faith by the Board of Directors.

                  (3) "fair market value" shall mean the amount which a willing
            buyer would pay a willing seller in an arm's length transaction.

                  (4) "Record Date" shall mean, with respect to any dividend,
            distribution or other transaction or event in which the holders of
            Common Stock have the right to receive any cash, securities or other
            property or in which the Common Stock (or other applicable security)
            is exchanged for or converted into any combination of cash,
            securities or other property, the date fixed for determination of
            stockholders entitled to receive such cash, securities or other
            property (whether such date is fixed by the Board of Directors or by
            statute, contract or otherwise).

                  (5) "Trading Day" shall mean (x) if the applicable security is
            quoted on the Nasdaq National Market, a day on which trades may be
            made thereon or (y) if the applicable security is listed or admitted
            for trading on the New York Stock Exchange or another national
            securities exchange or securities trading market, a day on which the
            New York Stock Exchange or such other national securities exchange
            or securities trading market is open for business or (z) if the
            applicable security is not so listed, admitted for trading or
            quoted, any Business Day.

            (i) The Company may make such reductions in the Conversion Price, in
addition to those required by Sections 15.5(a), (b), (c), (d), (e), (f) and (g),
as the Board of Directors considers to be advisable to avoid or diminish any
income tax to holders of Common Stock resulting from any dividend or
distribution of stock (or rights to acquire stock) or from any event treated as
such for income tax purposes. To the extent permitted by applicable law, the
Company from time to time may reduce the Conversion Price by any amount for any
period of time if the period is at least twenty (20) Business Days, the
reduction is irrevocable during the period and the Board of Directors shall have
made a determination that such reduction is in the best interests of the
Company, which determination shall be conclusive and described in a Board
Resolution. Whenever the Conversion Price is reduced pursuant to the preceding
sentence, the Company shall mail to the holder of each Note, at his, her or its
last address appearing on the Note register provided for in Section 2.5, a
notice of the reduction at least fifteen (15) days prior to the date the reduced
Conversion Price takes effect, and such notice shall state the reduced
Conversion Price and the period during which it will be in effect.

            (j) No adjustment in the Conversion Price shall be required unless
such adjustment would require an increase or decrease of at least 1% in such
price; provided, however, that any adjustments which by reason of this Section
15.5(j) are not required to be made shall be carried forward and taken into
account in any subsequent adjustment. All calculations under this Article XV
shall be made by the Company and shall be rounded to the nearest cent. No
adjustment need be made for a change in the par value or no par value of the
Common Stock or a change from par value to no par value or from no par value to
par value.

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<PAGE>

            (k) Whenever the Conversion Price is adjusted as herein provided,
the Company shall promptly file with the Trustee and any conversion agent other
than the Trustee an Officers' Certificate setting forth the Conversion Price
after such adjustment and setting forth a brief statement of the facts requiring
such adjustment. Unless and until a Responsible Officer of the Trustee shall
have received such Officers' Certificate, the Trustee shall not be deemed to
have knowledge of any adjustment of the Conversion Price and may assume without
inquiry that the last Conversion Price of which it has knowledge remains in
effect. Promptly after delivery of such certificate, the Company shall prepare a
notice of such adjustment of the Conversion Price setting forth the adjusted
Conversion Price and the date on which such adjustment becomes or became
effective and shall mail such notice of such adjustment of the Conversion Price
to the holder of each Note, at his, her or its last address appearing on the
Note register provided for in Section 2.5, within twenty (20) days of the
effective date of such adjustment. Failure to deliver such notice shall not
affect the legality or validity of any such adjustment.

            (l) In any case in which this Section 15.5 provides that an
adjustment shall become effective immediately after a Record Date for an event,
the Company may defer until the occurrence of such event (i) issuing to the
holder of any Note converted after such Record Date and before the occurrence of
such event the additional shares of Common Stock issuable upon such conversion
by reason of the adjustment required by such event over and above the Common
Stock issuable upon conversion before giving effect to such adjustment and (ii)
paying to such holder any amount in cash in lieu of any fractional shares of
Common Stock pursuant to Section 15.3.

            (m) For purposes of this Section 15.5, the number of shares of
Common Stock at any time outstanding shall not include shares held in the
treasury of the Company, unless a dividend or distribution that requires an
adjustment to the Conversion Price pursuant to this Section 15.5 is paid or made
with respect to such treasury shares, but shall include shares issuable in
respect of scrip certificates issued in lieu of fractions of shares of Common
Stock.

      SECTION 15.6 RECLASSIFICATION, CONSOLIDATION, MERGER OR SALE. If any of
the following events occur, namely (i) any reclassification or change of the
outstanding shares of Common Stock (other than a subdivision or combination to
which Section 15.5(c) applies or a change in par value), (ii) any consolidation,
merger or combination of the Company with another person as a result of which
holders of Common Stock shall be entitled to receive stock, other securities or
other property or assets (including cash) with respect to or in exchange for
such Common Stock, or (iii) any sale or conveyance of all or substantially all
of the assets of the Company to any other person as a result of which holders of
Common Stock shall be entitled to receive stock, other securities or other
property or assets (including cash) with respect to or in exchange for such
Common Stock, then the Company, its successor or purchasing person, as the case
may be, shall execute with the Trustee a supplemental indenture (which shall
comply with the Trust Indenture Act as in effect at the date of execution of
such supplemental indenture) providing that each Note shall be convertible into
the kind and amount of shares of stock, other securities or other property or
assets (including cash) receivable upon such reclassification, change,
consolidation, merger, combination, sale or conveyance by a holder of the number
of shares of Common Stock issuable upon conversion of such Notes (assuming, for
such purposes, a sufficient number of authorized shares of Common Stock are
available to convert all such Notes) immediately prior to such

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<PAGE>

reclassification, change, consolidation, merger, combination, sale or conveyance
assuming such holder of Common Stock did not exercise his rights of election, if
any, as to the kind or amount of stock, other securities or other property or
assets (including cash) receivable upon such reclassification, change,
consolidation, merger, combination, sale or conveyance (provided that, if the
kind or amount of stock, other securities or other property or assets (including
cash) receivable upon such reclassification, change, consolidation, merger,
combination, sale or conveyance is not the same for each share of Common Stock
in respect of which such rights of election shall not have been exercised
("non-electing share"), then for the purposes of this Section 15.6 the kind and
amount of stock, other securities or other property or assets (including cash)
receivable upon such reclassification, change, consolidation, merger,
combination, sale or conveyance for each non-electing share shall be deemed to
be the kind and amount so receivable per share by a plurality of the
non-electing shares). Such supplemental indenture shall provide for adjustments
which shall be as nearly equivalent as may be practicable to the adjustments
provided for in this Article XV.

      The Company shall cause notice of the execution of such supplemental
indenture to be mailed to each holder of Notes, at its address appearing on the
Note register provided for in Section 2.5 of this Indenture, within twenty (20)
days after execution thereof. Failure to deliver such notice shall not affect
the legality or validity of such supplemental indenture.

      The above provisions of this Section 15.6 shall similarly apply to
successive reclassifications, changes, consolidations, mergers, combinations,
sales and conveyances.

      If this Section 15.6 applies to any event or occurrence, Section 15.5
shall not apply. The Company shall not be a party to any event or occurrence to
which this Section 15.6 applies unless the terms of such event or occurrence are
consistent with this Section 15.6.

      SECTION 15.7 TAXES ON SHARES ISSUED. The issuance of stock certificates
representing the shares of Common Stock issuable upon conversion of the Notes
shall be made without charge to the holders of such shares for any issuance tax
in respect thereof imposed by the government of the United States or any
political subdivision thereof or other cost incurred by the Company in
connection with such conversion and/or the issuance of such shares. 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 Common Stock in any name
other than the name in which the Note with respect to which such shares of
Common Stock are issued is registered, and the Company shall not be required to
issue or deliver any such shares unless and until the person or persons
requesting the issue thereof shall have paid to the Company the amount of such
tax or shall have established to the satisfaction of the Company that such tax
has been paid.

      SECTION 15.8 RESERVATION OF SHARES; SHARES TO BE FULLY PAID; LISTING OF
COMMON STOCK. The Company shall provide, free from preemptive rights, out of its
authorized but unissued shares of Common Stock or shares of Common Stock held in
treasury, or both, sufficient shares of Common Stock to provide for the
conversion of the Notes from time to time as such Notes are presented for
conversion, and no Note shall be issued unless such sufficient number of shares
of Common Stock has been reserved and is available for issuance upon conversion
of Notes under this Article XV.

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<PAGE>

      The Company covenants that it will at all times reserve and keep
available, free from preemptive rights, out of the aggregate of its authorized
but unissued shares of Common Stock or its issued shares of Common Stock held in
its treasury, or both, a sufficient number of shares of Common Stock for the
purpose of effecting conversions of the Notes not theretofore converted into
Common Stock. For purposes of this reservation of Common Stock, the number of
shares of Common Stock which shall be deliverable upon the conversion of all
outstanding Notes shall be computed as if at the time of computation all
outstanding Notes were held by a single holder. The issuance of shares of Common
Stock upon conversion of the Notes is duly authorized in all respects.

      The Company shall from time to time, in accordance with the laws of the
State of Delaware, use its best efforts to increase the authorized number of
shares of Common Stock if at any time the number of shares of authorized and
unissued Common Stock shall not be sufficient to permit the conversion of all of
the then outstanding Notes.

      Before taking any action which would cause an adjustment reducing the
Conversion Price below the then par value, if any, of the shares of Common Stock
issuable upon conversion of the Notes, the Company will take all corporate
action which may, in the opinion of its counsel, be necessary in order that the
Company may validly and legally issue shares of such Common Stock at such
adjusted Conversion Price.

      The Company covenants that all shares of Common Stock issued upon
conversion of Notes will, upon such issuance, be fully paid and non-assessable
shares of the capital stock of the Company, free from all taxes, liens and
charges. The Company covenants that if any shares of Common Stock to be provided
for the purpose of conversion of Notes hereunder require registration with or
approval of any governmental authority under any Federal or state law before
such shares may be validly issued upon conversion, the Company will, in good
faith and as expeditiously as possible, endeavor to secure such registration or
approval, as the case may be.

      The Company further covenants that, if at any time the Common Stock shall
be listed on the Nasdaq National Market, the New York Stock Exchange or any
other national securities exchange or automated quotation system, the Company
will, if permitted by the rules of such exchange or automated quotation system,
list and keep listed, so long as the Common Stock shall be so listed on such
exchange or automated quotation system, all Common Stock issuable upon
conversion of the Notes.

      SECTION 15.9 RESPONSIBILITY OF TRUSTEE. Except as otherwise expressly
provided for in this Article XV, the Company is solely responsible for
performing the duties and responsibilities contained in this Article XV. The
Trustee and any other conversion agent shall not at any time be under any duty
or responsibility to any holder of Notes to determine whether any facts exist
which may require any adjustment of the Conversion Price, or with respect to the
nature or extent or calculation of any such adjustment when made, or with
respect to the method employed, or employed herein or in any supplemental
indenture, in making the same. The Trustee and any other conversion agent shall
not be accountable with respect to the validity or value (or the kind or amount)
of any shares of Common Stock, or of any securities or property,

                                       72
<PAGE>

which may at any time be issued or delivered upon the conversion of any Note;
and the Trustee and any other conversion agent make no representations with
respect thereto. Subject to the provisions of Section 8.1, neither the Trustee
nor any conversion agent shall be responsible for any failure of the Company to
issue, transfer or deliver any shares of Common Stock or stock certificates or
other securities or property or cash upon the surrender of any Note for the
purpose of conversion or to comply with any of the duties, responsibilities or
covenants of the Company contained in this Article XV. Without limiting the
generality of the foregoing, neither the Trustee nor any conversion agent shall
be under any responsibility to determine the correctness of any provisions
contained in any supplemental indenture entered into pursuant to Section 15.6
relating either to the kind or amount of shares of stock or securities or
property (including cash) receivable by Noteholders upon the conversion of their
Notes after any event referred to in such Section 15.6 or to any adjustment to
be made with respect thereto, but, subject to the provisions of Section 8.1, may
accept as conclusive evidence of the correctness of any such provisions, and
shall be protected in relying upon, an Officers' Certificate (which the Company
shall be obligated to file with the Trustee prior to the execution of any such
supplemental indenture) with respect thereto.

      SECTION 15.10 NOTICE TO HOLDERS PRIOR TO CERTAIN ACTIONS. In the event:

            (a) the Company shall declare a dividend (or any other distribution)
on its Common Stock; or

            (b) the Company shall authorize the granting to the holders of its
Common Stock of rights or warrants to subscribe for or purchase any share of any
class of the Company's capital stock or any other rights or warrants; or

            (c) of any reclassification of the Common Stock (other than a
subdivision or combination of its outstanding Common Stock, or a change in par
value, or from par value to no par value, or from no par value to par value), or
of any consolidation or merger to which the Company is a party and for which
approval of any stockholders 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;

the Company shall cause to be filed with the Trustee and to be mailed to each
holder of Notes, at his, her or its address appearing on the Note register
provided for in Section 2.5 of this Indenture, as promptly as possible but in
any event at least fifteen (15) days prior to the applicable 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 rights or warrants, 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 or rights 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 or occur, and the date as of which it is expected that holders
of Common Stock of record shall be entitled to exchange their Common Stock for
securities or other property deliverable upon such reclassification,
consolidation, merger, sale, transfer, dissolution, liquidation or winding-up.

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<PAGE>

Failure to give such notice, or any defect therein, shall not affect the
legality or validity of such dividend, distribution, reclassification,
consolidation, merger, sale, transfer, dissolution, liquidation or winding-up.

                                  ARTICLE XVI

                            MISCELLANEOUS PROVISIONS

      SECTION 16.1 PROVISIONS BINDING ON COMPANY'S SUCCESSORS. All the
covenants, stipulations, promises and agreements of the Company in this
Indenture contained shall bind its successors and assigns whether so expressed
or not.

      SECTION 16.2 OFFICIAL ACTS BY SUCCESSOR CORPORATION. Any act or proceeding
by any provision of this Indenture authorized or required to be done or
performed by any board, committee or officer of the Company shall and may be
done and performed with like force and effect by the like board, committee or
officer of any corporation that shall at the time be the lawful sole successor
of the Company.

      SECTION 16.3 ADDRESSES FOR NOTICES, ETC. Any notice or demand which by any
provision of this Indenture is required or permitted to be given or served by
the Trustee or by the holders of Notes on the Company shall be deemed to have
been sufficiently given or made, for all purposes if given or served by any
standard form of telecommunication (until another address is filed by the
Company with the Trustee). Notices shall be directed to 650 Poydras Street, New
Orleans, Louisiana 70130 Attention: Chief Financial Officer, or to an agent of
the Company designated as permitted by this Indenture. Any notice, direction,
request or demand hereunder to or upon the Trustee shall be deemed to have been
sufficiently given or made, for all purposes, if given or served by any standard
form of telecommunication. Notices shall be directed to the Corporate Trust
Office, which office is, at the date as of which this Indenture is dated,
located at 10161 Centurion Parkway, 2nd Floor, Jacksonville, Florida 32256,
Attention: Corporate Trust Department (International Shipholding Corporation
6.0% Convertible Subordinated Notes Due 2014).

      The Trustee, by notice to the Company, may designate additional or
different addresses for subsequent notices or communications.

      Any notice or communication mailed to a Noteholder shall be mailed to him,
her or it by first class mail, postage prepaid, at his, her or its address as it
appears on the Note register and shall be sufficiently given to him, her or it
if so mailed within the time prescribed.

      Failure to mail a notice or communication to a Noteholder or any defect in
it shall not affect its sufficiency with respect to other Noteholders. If a
notice or communication is mailed in the manner provided above, it is duly
given, whether or not the addressee receives it.

      SECTION 16.4 GOVERNING LAW. This Indenture and each Note shall be deemed
to be a contract made under the laws of New York, and for all purposes shall be
construed in accordance with the laws of New York, without regard to the
conflict of laws provisions thereof.

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<PAGE>

      SECTION 16.5 EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT;
CERTIFICATES TO TRUSTEE. Upon any application or demand by the Company to the
Trustee to take any action under any of the provisions of this Indenture,
including those actions set forth in Section 314(c) of the Trust Indenture Act,
the Company shall furnish to the Trustee an Officers' Certificate stating that
all conditions precedent, if any, provided for in this Indenture relating to the
proposed action have been complied with, and an Opinion of Counsel stating that,
in the opinion of such counsel, all such conditions precedent have been complied
with.

      Each certificate or opinion provided for by or on behalf of the Company in
this Indenture and delivered to the Trustee with respect to compliance with a
condition or covenant provided for in this Indenture shall include (1) a
statement that the person making such certificate or opinion has read such
covenant or condition; (2) a brief statement as to the nature and scope of the
examination or investigation upon which the statement or opinion contained in
such certificate or opinion is based; (3) a statement that, in the opinion of
such person, he has made such examination or investigation as is necessary to
enable him, her or it to express an informed opinion as to whether or not such
covenant or condition has been complied with; and (4) a statement as to whether
or not, in the opinion of such person, such condition or covenant has been
complied with.

      SECTION 16.6 LEGAL HOLIDAYS. In any case where the date of maturity of
interest on or principal of the Notes or the date fixed for redemption of any
Note or the Change in Control Purchase Date will not be a Business Day, then
payment of such interest on or principal of the Notes 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 date of maturity, the date fixed for redemption or
the Change in Control Purchase Date, and no interest shall accrue for the period
from and after such date.

      SECTION 16.7 NO SECURITY INTEREST CREATED. Nothing in this Indenture or in
the Notes, expressed or implied, shall be construed to constitute a security
interest under the Uniform Commercial Code or similar legislation, as now or
hereafter enacted and in effect, in any jurisdiction.

      SECTION 16.8 TRUST INDENTURE ACT. If any provision hereof limits,
qualifies or conflicts with a provision of the Trust Indenture Act that is
required under the Trust Indenture 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 that 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. Until such
time as this Indenture shall be qualified under the Trust Indenture Act, this
Indenture, the Company and the Trustee shall be deemed for all purposes hereof
to be subject to and governed by the Trust Indenture Act to the same extent as
would be the case if this Indenture were so qualified on the date hereof.

      SECTION 16.9 BENEFITS OF INDENTURE. Nothing in this Indenture or in the
Notes, expressed or implied, shall give to any person, other than the parties
hereto, any paying agent, any conversion agent, any authenticating agent, any
Note registrar and their successors hereunder, the

                                       75
<PAGE>

holders of Notes and the holders of Senior Indebtedness, any benefit or any
legal or equitable right, remedy or claim under this Indenture.

      SECTION 16.10 TABLE OF CONTENTS, HEADINGS, ETC. The table of contents and
the titles and headings of the articles and sections of this Indenture have been
inserted for convenience of reference only, are not to be considered a part
hereof, and shall in no way modify or restrict any of the terms or provisions
hereof.

      SECTION 16.11 AUTHENTICATING AGENT. The Trustee may appoint an
authenticating agent which shall be authorized to act on its behalf and subject
to its direction in the authentication and delivery of Notes in connection with
the original issuance thereof and transfers and exchanges of Notes hereunder,
including under Sections 2.4, 2.5, 2.6, 2.7, 3.3 and 3.6, as fully to all
intents and purposes as though the authenticating agent had been expressly
authorized by this Indenture and those Sections to authenticate and deliver
Notes. For all purposes of this Indenture, the authentication and delivery of
Notes by the authenticating agent shall be deemed to be authentication and
delivery of such Notes "by the Trustee" and a certificate of authentication
executed on behalf of the Trustee by an authenticating agent shall be deemed to
satisfy any requirement hereunder or in the Notes for the Trustee's certificate
of authentication. Such authenticating agent shall at all times be a person
eligible to serve as trustee hereunder pursuant to Section 8.9.

      Any corporation into which any authenticating agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, consolidation or conversion to which any authenticating agent
shall be a party, or any corporation succeeding to the corporate trust business
of any authenticating agent, shall be the successor of the authenticating agent
hereunder, if such successor corporation is otherwise eligible under this
Section, without the execution or filing of any paper or any further act on the
part of the parties hereto or the authenticating agent or such successor
corporation.

      Any authenticating agent may at any time resign by giving written notice
of resignation to the Trustee and to the Company. The Trustee may at any time
terminate the agency of any authenticating agent by giving written notice of
termination 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 any
authenticating agent shall cease to be eligible under this Section, the Trustee
shall promptly appoint a successor authenticating agent (which may be the
Trustee), shall give written notice of such appointment to the Company and shall
mail notice of such appointment to all holders of Notes as the names and
addresses of such holders appear on the Note register.

      The Trustee agrees to pay to the authenticating agent from time to time
reasonable compensation for its services (to the extent pre-approved by the
Company in writing), and the Trustee shall be entitled to be reimbursed for such
pre-approved payments, subject to Section 8.6.

      The provisions of Sections 8.2, 8.3, 8.4, 9.3 and this Section 16.11 shall
be applicable to any authenticating agent.

                                       76
<PAGE>

      SECTION 16.12 EXECUTION IN COUNTERPARTS. This Indenture may be executed in
any number of counterparts, each of which shall be an original, but such
counterparts shall together constitute but one and the same instrument.

      The Bank of New York hereby accepts the trusts in this Indenture declared
and provided, upon the terms and conditions hereinabove set forth.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                       77
<PAGE>

      IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be
duly signed all as of the date first written above.

                                        INTERNATIONAL SHIPHOLDING CORPORATION

                                        By: /s/ Erik F. Johnsen
                                        Name: Erik F. Johnsen
                                        Title: Chairman of the Board and Chief
                                               Executive Officer

                                        THE BANK OF NEW YORK,
                                        as Trustee

                                        By: /s/ William Cardozo
                                        Name: William Cardozo
                                        Title: Agent

                                       78
<PAGE>

                            EXHIBIT A - FORM OF NOTE

                             [FORM OF FACE OF NOTE]

No. _____________

$________________

                     INTERNATIONAL SHIPHOLDING CORPORATION

CUSIP: 460321 AD 4

                  6.0% Convertible Subordinated Note Due 2014

      International Shipholding Corporation, a corporation duly organized and
validly existing under the laws of the State of Delaware (herein called the
"Company", which term includes any successor corporation under the Indenture
referred to on the reverse hereof), for value received hereby promises to pay
to________________, or registered assigns, the principal sum of ________________
Dollars on December 31, 2014 and to pay interest on said principal sum quarterly
on March 31, June 30, September 30 and December 31 of each year, commencing on
the first such date after the Exchange Date (as defined in the Indenture), at
the rate per annum specified in the title of this Note, accrued from March 31,
June 30, September 30 or December 31, as the case may be, next preceding the
date of this Note to which interest has been paid or duly provided for, unless
the date of this Note is a date to which interest has been paid or duly provided
for, in which case interest shall accrue from the date of this Note, or unless
no interest has been paid or duly provided for on this Note, in which case
interest shall accrue from the Exchange Date, until payment of said principal
sum has been made or duly provided for. Notwithstanding the foregoing, if the
date hereof is after March 11, June 10, September 10 or December 11 of such
year, as the case may be, and before the following March 31, June 30, September
30 or December 31, of such year, as the case may be, this Note shall bear
interest from such March 31, June 30, September 30 or December 31, respectively;
provided, however, that if the Company shall default in the payment of interest
due on such March 31, June 30, September 30 or December 31, as the case may be,
then this Note shall bear interest from the next preceding March 31, June 30,
September 30 or December 31, as the case may be, to which interest has been paid
or duly provided for or, if no interest has been paid or duly provided for on
this Note, from the Exchange Date. The interest so payable on March 31, June 30,
September 30 and December 31 of any year will be paid to the person in whose
name this Note (or one or more Predecessor Notes) is registered at the close of
business on the record date, which shall be March 11, June 10, September 10 and
December 11 (whether or not a Business Day) next preceding such March 31, June
30, September 30 and December 31, respectively, as provided in the Indenture;
provided that any such interest not punctually paid or duly provided for shall
be payable as provided in the Indenture. Payment of the principal of and
interest accrued on this Note shall be made at the office or agency of the
Company maintained for that purpose in the Borough of Manhattan, The City of New
York, New York, which shall initially be the office of the Trustee or its
affiliate, or, at the option of the holder of this Note, at the Corporate Trust
Office, in such coin or currency of the United States of America as at the time
of payment shall

                                      A-1
<PAGE>

be legal tender for the payment of public and private debts; provided, however,
that at the option of the Company, payment of interest may be made by check
mailed to the registered address of the person entitled thereto; provided
further that, with respect to any holder of Notes with an aggregate principal
amount equal to or in excess of $2,000,000, at the request of such holder in
writing to the Company, interest on such holder's Notes shall be paid by wire
transfer of immediately available funds in accordance with the wire transfer
instruction supplied by such holder to the Trustee and paying agent (if
different from Trustee).

      Reference is made to the further provisions of this Note set forth on the
reverse hereof, including, without limitation, provisions subordinating the
payment of principal of and premium, if any, and interest on this Note to the
prior payment as and when due of all Senior Indebtedness as defined in the
Indenture and provisions giving the holder of this Note the right to convert
this Note into Common Stock of the Company on the terms and subject to the
limitations referred to on the reverse hereof and as more fully specified in the
Indenture. Such further provisions shall for all purposes have the same effect
as though fully set forth at this place.

      This Note shall be deemed to be a contract made under the laws of the
State of New York, and for all purposes shall be construed in accordance with
and governed by the laws of said State.

      This Note shall not be valid or become obligatory for any purpose until
the certificate of authentication hereon shall have been manually signed by the
Trustee or a duly authorized authenticating agent under the Indenture.

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

                                        INTERNATIONAL SHIPHOLDING
                                        CORPORATION

Dated___________________________        By:___________________________________
                                           Title

                                        Attest:

                                        ______________________________________
                                        Secretary

                                      A-2
<PAGE>

                    [FORM OF CERTIFICATE OF AUTHENTICATION]

                    TRUSTEE'S CERTIFICATE OF AUTHENTICATION

      This is one of the Notes described in the within-named Indenture.

                                        THE BANK OF NEW YORK,
                                        as Trustee

                                        By:____________________________________
                                           Authorized Signatory

                                      A-3
<PAGE>

                           [FORM OF REVERSE OF NOTE]

                     INTERNATIONAL SHIPHOLDING CORPORATION

                  6.0% Convertible Subordinated Note Due 2014

      This Note is one of a duly authorized issue of notes of the Company,
designated as its 6.0% Convertible Subordinated Notes Due 2014 (herein called
the "Notes"), limited to the aggregate principal amount of $44,000,000, all
issued or to be issued under and pursuant to an Indenture, dated as of January
6, 2005 (herein called the "Indenture"), between the Company and The Bank of New
York (herein called the "Trustee"), to which Indenture and all indentures
supplemental thereto reference is hereby made for a description of the rights,
limitations of rights, obligations, duties and immunities thereunder of the
Trustee, the Company and the holders of the Notes.

      In case an Event of Default, as defined in the Indenture, shall have
occurred and be continuing, the principal of and accrued interest on all Notes
may be declared, and upon said declaration shall become, due and payable, in the
manner, with the effect and subject to the conditions provided in the Indenture.

      The Indenture contains provisions permitting the Company and the Trustee,
with the consent of the holders of not less than a majority of the aggregate
principal amount of the Notes at the time outstanding, evidenced as in the
Indenture provided, to execute supplemental indentures adding any provisions to
or changing in any manner or eliminating any of the provisions of the Indenture
or of any supplemental indenture or modifying in any manner the rights of the
holders of the Notes; provided, however, that no such supplemental indenture
shall, in each case, without the consent of the holder of each Note so affected:
(i) extend the fixed maturity of any Note, or reduce the rate or extend the time
of payment of interest thereon, or reduce the principal amount thereof or
premium, if any, thereon, or reduce any amount payable on redemption or purchase
thereof, or change the obligation of the Company to redeem any Note on a
redemption date in a manner adverse to the holders of Notes, or change the
obligation of the Company to purchase any Note upon the happening of a Change in
Control in a manner adverse to the holders of Notes, or impair or adversely
affect the right of any Noteholder to institute suit for the payment thereof, or
make the principal thereof or interest or premium, if any, thereon payable in
any coin or currency other than that provided in the Notes, or change or impair
in a manner adverse to the Noteholders the right to convert the Notes into
Common Stock or reduce the number of shares of Common Stock or any other
property receivable by a Noteholder upon conversion subject to the terms set
forth in the Indenture, including Section 15.6, or modify the provisions of the
Indenture with respect to the subordination of the Notes in a manner adverse to
the Noteholders; or (ii) reduce the aforesaid percentage of Notes, the holders
of which are required to consent to any supplemental indenture, waiver or
modification of any of the provisions of Section 7.7 or Section 11.2 of the
Indenture. It is also provided in the Indenture that, prior to any declaration
accelerating the maturity of the Notes, the holders of not less than a majority
in aggregate principal amount of the Notes at the time outstanding may on behalf
of the holders of all of the Notes waive any past default or Event of Default
under the Indenture and its consequences except (i) a default by the Company in
the payment of interest or premium, if any,

                                      A-4
<PAGE>

on, or the principal of, any of the Notes, (ii) a failure by the Company to
convert any Notes into Common Stock of the Company or (iii) a default by the
Company in respect of a covenant or provision in the Indenture which cannot be
modified or waived without the consent of the holders of all Notes then
outstanding affected thereby. Any such consent or waiver by the holder of this
Note (unless revoked as provided in the Indenture) shall be conclusive and
binding upon such holder and upon all future holders and owners of this Note and
any Notes which may be issued in exchange or substitution hereof, irrespective
of whether or not any notation thereof is made upon this Note or such other
Notes.

      The indebtedness evidenced by the Notes is, to the extent and in the
manner provided in the Indenture, expressly subordinate and subject in right of
payment to the prior payment in full of all Senior Indebtedness of the Company,
as defined in the Indenture, whether outstanding at the date of the Indenture or
thereafter incurred, and this Note is issued subject to the provisions of the
Indenture with respect to such subordination. Each holder of this Note, by
accepting the same, agrees to and shall be bound by such provisions and
authorizes the Trustee on his, her or its behalf to take such action as may be
necessary or appropriate to effectuate the subordination so provided and
appoints the Trustee his, her or its attorney in fact for such purpose.

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

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

      The Notes are issuable in registered form without coupons in denominations
of $50 principal amount and integral multiples thereof equal to the number of
shares of Preferred Stock for which the Notes are exchanged. At the office or
agency of the Company referred to on the face hereof, and in the manner and
subject to the limitations provided in the Indenture, without payment of any
service charge, Notes may be exchanged for a like aggregate principal amount of
Notes of other authorized denominations.

      Prior to December 31, 2006, the Notes may not be redeemed by the Company
except in connection with a Change in Control. At any time on or after December
31, 2006 and prior to maturity, the Company, at its option, may redeem the
Notes, in whole or in part, at any time or from time to time, upon mailing a
notice of such redemption not less than thirty (30) nor more than sixty (60)
days before the date fixed for redemption to the holders of Notes at their last
registered addresses, all as provided in the Indenture, during the periods shown
below, for cash at the following per-note redemption prices plus an amount equal
to accrued and unpaid interest, if any, to (but excluding) the date fixed for
redemption; provided that if the date fixed for redemption falls after an
interest payment record date and on or prior to the corresponding interest
payment date, then holders of the Notes at the close of business on that
interest payment record date shall be entitled to receive the interest payable
on such Notes on the corresponding interest payment date and the amount payable
to holders of such Notes on the date fixed for redemption will not include any
amount in respect of interest payable on such corresponding

                                      A-5
<PAGE>

interest payment date; and provided further that, prior to December 31, 2007,
Notes may not be redeemed by the Company except in connection with a Change in
Control unless the Closing Price of Common Stock (or, if more than one class of
Common Stock is then issued and outstanding, all classes of Common Stock) has
exceeded 150% of the Conversion Price for at least 20 Trading Days during any
period of 30 consecutive Trading Days ending within five Trading Days prior to
the notice of redemption.

<TABLE>
<CAPTION>
              REDEMPTION DATE                        REDEMPTION PRICE
              ---------------                        ----------------
<S>                                                  <C>
On and after December 31, 2006 and prior to               $52.50
December 31, 2007

On and after December 31, 2007 and prior to               $51.00
December 31, 2008

On and after December 31, 2008                            $50.00
</TABLE>

      The Notes are not subject to redemption or retirement through the
operation of any sinking fund.

      The Company may not give notice of any redemption of the Notes if a
default in the payment of interest, or premium, if any, on the Notes has
occurred and is continuing or if any other Event of Default of which a
Responsible Officer of the Trustee has knowledge has occurred and is continuing.

      If a Change in Control occurs at any time prior to maturity of the Notes,
the Notes may be redeemed at the option of the Company, in whole but not in
part, not later than sixty (60) days following the effective date of the event
or circumstance resulting in the Change in Control, upon mailing a notice of
such redemption at least thirty (30) and not more than sixty (60) days prior to
the date fixed for redemption to holders of the Notes as provided in the
Indenture for cash at the following per-note redemption prices together with
accrued and unpaid interest to, but excluding, the date fixed for redemption;
provided that if the date fixed for redemption falls after an interest payment
record date and on or prior to the corresponding interest payment date, then
holders of the Notes at the close of business on that interest payment record
date shall be entitled to receive the interest payable on such Notes on the
corresponding interest payment date and the amount payable to holders of such
Notes on the redemption date will not include any amount in respect of interest
payable on such corresponding interest payment date:

<TABLE>
<CAPTION>
                DATE OF CHANGE IN CONTROL                       REDEMPTION PRICE
                -------------------------                       ----------------
<S>                                                             <C>
Prior to December 31, 2007                                           $52.50

On or after December 31, 2007 and prior to December 31,
2008                                                                  51.25

On or after December 31, 2008                                         50.00
</TABLE>

                                      A-6
<PAGE>

      If a Change in Control occurs at any time prior to maturity of the Notes,
and the Company shall not have exercised its right to redeem all of the Notes,
the holder of this Note, at the holder's option, shall have the right, upon
delivery of a Change in Control Purchase Notice in accordance with the
provisions of the Indenture, to require the Company to purchase this Note (or
any portion of the principal amount hereof that is at least $50 and an integral
multiple of $50, provided that the portion of the principal amount of this Note
to be outstanding after such purchase is at least equal to $50) for cash at a
purchase price equal to 100% of the aggregate principal amount thereof, together
with accrued and unpaid interest to (but excluding) the Change in Control
Purchase Date, as provided in Section 3.6(a) of the Indenture; provided that if
the Change in Control Purchase Date falls after an interest payment record date
and on or prior to the corresponding interest payment date, then holders of the
Notes at the close of business on that interest payment record date shall be
entitled to receive the interest payable on such Notes on the corresponding
interest payment date and the amount payable to holders of such Notes on the
Change in Control Purchase Date will not include any amount in respect of
interest payable on such corresponding interest payment date. Any holder of this
Note delivering to the Trustee the Change in Control Purchase Notice shall have
the right to withdraw such Change in Control Purchase Notice in whole, or as to
a portion hereof that is an integral multiple of $50, at any time prior to the
close of business on the Business Day immediately before the Change in Control
Purchase Date (unless the Company shall default in the payment of the purchase
price, together with accrued and unpaid interest to (but excluding) the Change
in Control Purchase Date, in which case, such withdrawal shall be permitted
until the Company pays the purchase price, together with accrued and unpaid
interest to (but excluding) the date of such payment) by delivery of a written
notice of withdrawal to the Trustee in accordance with the provisions of the
Indenture.

      Subject to the provisions of the Indenture, the holder hereof has, at its
option, the right, at any time or on or prior to the close of business on the
Maturity Date (or as to all or any portion hereof called for redemption, prior
to the close of business on the Business Day immediately preceding the date
fixed for redemption (unless the Company shall default in payment of the amount
due upon redemption in which case such right shall terminate upon payment of the
amount due upon such redemption)), to convert the principal hereof or any
portion of such principal which is $50 or an integral multiple thereof, into
that number of fully paid and non-assessable shares of the Company's Common
Stock, as said shares shall be constituted at the date of conversion, obtained
by dividing the principal amount of this Note or portion thereof to be converted
by the initial conversion price of $20 per share, as adjusted from time to time
pursuant to Article XV of the Indenture, upon surrender of this Note, together
with a conversion notice as provided in the Indenture and this Note, to the
Company at the office or agency of the Company maintained for that purpose in
the Borough of Manhattan, The City of New York, New York, or at the option of
such holder, the Corporate Trust Office, and, unless the shares issuable on
conversion are to be issued in the same name as this Note, duly endorsed by, or
accompanied by instruments of transfer in form satisfactory to the Company duly
executed by, the holder or by his, her or its duly authorized attorney. If a
Change in Control Purchase Notice has been given by the holder of this Note,
this Note may not be converted into shares of Common Stock on or after the date
of the delivery of such Change in Control Purchase Notice unless such Change in
Control Purchase Notice has first been validly withdrawn as specified in Section
3.6 of the Indenture. No adjustment in respect of interest accrued on any Note
or on account of any

                                      A-7
<PAGE>

dividends on any shares of Common Stock will be made upon any conversion;
provided, however, that if this Note shall be surrendered for conversion during
the period between the close of business on a record date for the payment of
interest and prior to the close of business on the Business Day immediately
preceding the corresponding interest payment date, this Note (unless it or the
portion being converted shall have been called for redemption and a notice of
redemption has been mailed to the holders of the Notes pursuant to Section 3.3
of the Indenture) must be accompanied by an amount, in funds acceptable to the
Company, equal to the interest otherwise payable on such interest payment date
on the principal amount being converted. No fractional shares of Common Stock
will be issued upon any conversion, but an adjustment in cash will be paid to
the holder, as provided in the Indenture, in respect of any fractional share
which would otherwise be issuable upon the surrender of any Note or Notes for
conversion.

      Upon due presentment for registration of transfer of this Note at the
office or agency of the Company in the Borough of Manhattan, The City of New
York, New York, which shall initially be an Affiliate of the Trustee, or at the
option of the holder of this Note, at the Corporate Trust Office, a new Note or
Notes of authorized denominations for an equal aggregate principal amount will
be issued to the transferee in exchange thereof, subject to the limitations
provided in the Indenture, without charge, and bearing any restrictive legends
required by the Indenture.

      The Company, the Trustee, any paying agent, any conversion agent and any
Note registrar may deem and treat the registered holder hereof as the absolute
owner of this Note (whether or not this Note shall be overdue and
notwithstanding any notation of ownership or other writing hereon), for the
purpose of receiving payment hereof, or on account hereof, for the conversion
hereof and for all other purposes, and neither the Company nor the Trustee nor
any paying agent nor any other conversion agent nor any Note registrar shall be
affected by any notice to the contrary. All payments made to or upon the order
of such registered holder shall, to the extent of the sum or sums paid, satisfy
and discharge liability for monies payable on this Note.

      No recourse for the payment of the principal of or any premium or interest
on this Note, or for any claim based hereon or otherwise in respect hereof, and
no recourse under or upon any obligation, covenant or agreement of the Company
in the Indenture or any indenture supplemental thereto or in any Note, or
because of the creation of any indebtedness represented thereby, shall be had
against any incorporator, stockholder, employee, agent, officer, director or
subsidiary, as such, past, present or future, of the Company or of any successor
corporation, either directly or through the Company or any successor
corporation, whether by virtue of any constitution, statute or rule of law or by
the enforcement of any assessment or penalty or otherwise, all such liability
being, by the acceptance hereof and as part of the consideration for the issue
hereof, expressly waived and released.

      Terms used in this Note and defined in the Indenture are used herein as
therein defined.

                                      A-8
<PAGE>

                                 ABBREVIATIONS

      The following abbreviations, when used in the inscription of the face of
this Note, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties
under Uniform Gifts to Minors Act

(Cust)                                        (Minor)

JT TEN - as joint tenants with right of
survivorship and not as tenants in common
                                              (State)

                   Additional abbreviations may also be used
                         though not in the above list.

                                      A-9
<PAGE>

                           [FORM OF CONVERSION NOTICE]

                               CONVERSION NOTICE

To ________________

      The undersigned registered owner of this Note hereby irrevocably exercises
the option to convert this Note, or the portion hereof (which is $50 principal
amount or an integral multiple thereof) below designated, into shares of Common
Stock in accordance with the terms of the Indenture referred to in this Note,
and directs that the shares issuable and deliverable upon such conversion and
any check in payment for fractional shares and any Notes representing any
unconverted principal amount hereof, be issued and delivered to the registered
holder hereof unless a different name has been indicated below. If shares or any
portion of this Note 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. Any amount required to be paid to the undersigned on
account of interest accompanies this Note.

Dated: ________________

                                        ____________________________________

                                        ____________________________________
                                        Signature(s)

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 issued, or
Notes to be delivered, other than to and in the name of the registered holder.

Signature Guarantee

Fill in for registration of shares if to be issued, and Notes if to be
delivered, other than to and in the name of the registered holder:

______________________________
(Name)

______________________________
(Street Address)

______________________________
(City, State and Zip Code)

Please print name and address

                                      A-10
<PAGE>

Principal amount to be converted (if less than all):
$_________,000

__________________________________________________
Social Security or Other Taxpayer Identification
Number

                                      A-11
<PAGE>

                              [FORM OF ASSIGNMENT]

      For value received ________________ hereby sell(s), assign(s) and
transfer(s) unto ________________ (Please insert social security number or
Taxpayer Identification Number of assignee) the Note, and hereby irrevocably
constitutes and appoints ________________ attorney to transfer the said Note on
the books of the Company, with full power of substitution in the premises.

      Unless the appropriate box below is checked, the undersigned confirms that
such Note is not being transferred to the Company or an "affiliate" of the
Company as defined in Rule 144 under the Securities Act of 1933, as amended (an
"Affiliate").

      [ ] The transferee is an Affiliate of the Company

      [ ] The transferee is the Company

Dated: ________________

                                        ____________________________________

                                        ____________________________________
                                        Signature(s)

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 issued, or
Notes are to be delivered, other than to and in the name of the registered
holder.

Signature Guarantee

      NOTICE: The signature on the conversion notice or the assignment must
correspond with the name as written upon the face of the Note in every
particular without alteration or enlargement or any change whatever.

                  [FORM OF CHANGE IN CONTROL PURCHASE NOTICE]

                       CHANGE IN CONTROL PURCHASE NOTICE

      To: _____________________________

            The undersigned registered owner of this Note hereby irrevocably
acknowledges receipt of a notice from International Shipholding Corporation, a
Delaware corporation (the "COMPANY"), as to the occurrence of a Change in
Control with respect to the Company and

                                      A-12
<PAGE>

requests and instructs the Company to purchase this Note, or the portion hereof
(which is $50 principal amount or an integral multiple thereof) below
designated, in accordance with the terms of the Indenture referred to in this
Note, at a purchase price per share equal to one hundred percent (100%) of the
principal amount, or portion designated below, of this Note, together with
accrued and unpaid interest, if any, to, but excluding, the Change in Control
Purchase Date. The certificate number(s) of such Note(s) is/are ____________
(include if the Notes are certificated).

            Capitalized terms used but not defined herein shall have the
meanings ascribed thereto in the Indenture.

Dated: ________________

                                        ____________________________________

                                        ____________________________________
                                        Signature(s)

      NOTICE: The above signatures of the holder(s) hereof must correspond with
the name as written upon the face of the Note in every particular without
alteration or enlargement or any change whatever.

                        Aggregate principal amount to be purchased
                        (if less than all):

                        $_____________________________________

                        ______________________________________
                        Social Security or Other Taxpayer
                        Identification Number

                                      A-13exv4w1

 

Exhibit 4.1

HCC INSURANCE HOLDINGS, INC.

2004 FLEXIBLE INCENTIVE PLAN

1. Purpose

     The purposes of the HCC Insurance Holdings, Inc. 2004 Flexible Incentive Plan (the “2004
Flexible Plan”) are to promote the interests of HCC Insurance Holdings, Inc. (together with any
successor thereto, the “Company”) and its subsidiaries and Shareholders by enabling the Company to
attract, motivate and retain employees, Directors, consultants, and other service providers by
offering such employees, Directors, consultants, and service providers performance-based stock
incentives and other equity interests in the Company and other incentive awards that recognize the
creation of value for the Shareholders and promote the Company’s long-term growth and success. To
achieve these purposes, Participants may receive stock options, Stock Appreciation Rights,
Restricted Stock, Performance Awards, Dividend Equivalent Rights and any other Awards, or any
combination thereof, subject to the terms of the Plan set forth below.

2. Definitions

     As used in the 2004 Flexible Plan, the following terms shall have the meanings set forth below
unless the content otherwise requires:

     2.1 “Award” shall mean the grant of a stock option, a Stock Appreciation Right, Restricted
Stock, a Performance Award, a Dividend Equivalent Right or any other award under the 2004 Flexible
Plan.

     2.2 “Board” shall mean the Board of Directors of the Company, as the same may be constituted
from time to time.

     2.3 “Change in Control” shall mean, after the effective date of the 2004 Flexible Plan, (i)
the occurrence of an event of a nature that would be required to be reported in response to Item 1
of a Form 8-K Current Report of the Company promulgated pursuant to Sections 13 and 15(d) of the
Exchange Act; provided that, without limitation, such a Change in Control shall be deemed to have
occurred if any “person,” as such term is used in Sections 13(d) and 14(d) of the Exchange Act
(other than the Company, any trustee or other fiduciary holding securities under any employee
benefit plan of the Company, or any company owned, directly or indirectly, by the Shareholders in
substantially the same proportions as their ownership of stock of the Company), is or becomes the
“beneficial owner” (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of
securities of the Company representing fifty percent (50%) or more of the combined voting power of
the Company’s then outstanding securities; (ii) the Shareholders approve a merger or consolidation
of the Company with any other corporation, other than a merger or consolidation that would result
in the voting securities of the Company outstanding immediately prior thereto continuing to
represent (either by remaining outstanding or by being converted into voting securities of the
surviving entity) more than fifty percent (50%) of the combined voting power of the voting
securities of the surviving entity outstanding immediately after such merger or consolidation;
provided, however, that a merger or consolidation effected to implement a reorganization or
recapitalization of the Company, or a similar transaction (collectively, a “Reorganization”), shall
not constitute a Change in Control of the Company; or (iii) the Shareholders approve a plan of
complete liquidation of the Company or an agreement for the sale or disposition by the Company of
all or substantially all of the Company’s assets.

     2.4 “Code” shall mean the Internal Revenue Code of 1986, as amended from time to time.

     2.5 “Committee” shall mean the Compensation Committee of the Company, if such a separate
committee is appointed by the Board, or, in the absence of such a separate committee, it shall mean
the Board. If a separate committee is appointed, then to the extent required by Rule 16b-3
promulgated under the Exchange Act and any successor thereunder promulgated during the duration of
the 2004 Flexible Plan, the Committee members who approve Awards which would otherwise not qualify
for an exemption from Rule 16b-3 shall consist of two or more “non-employee Directors” as defined
by Rule 16b-3. To the extent that Awards are intended to satisfy, and to the extent required to
satisfy, the “qualified performance-based compensation” exemption under Section 162(m) of the Code
and such Treasury Regulations as may be promulgated thereunder, the Committee members who approve

 

 

Awards shall consist of two or more “outside Directors” as defined by such Section of the Code
and such Treasury Regulations.

     2.6 “Common Stock” shall mean the Common Stock, $1.00 par value per share, of the Company.

     2.7 “Designated Beneficiary” shall mean the beneficiary designated by an Optionee, in a
manner determined by the Committee, to exercise rights of the Optionee in the event of the
Optionee’s death. In the absence of an effective designation by an Optionee the Designated
Beneficiary shall be the Optionee’s estate.

     2.8 “Disability” shall mean permanent and total inability to engage in any substantial
gainful activity by reason of any medically determinable physical or mental impairment which can be
expected to result in death or which has lasted or can be expected to last for a continuous period
of not less than twelve (12) months, as determined in the sole and absolute discretion of the
Committee.

     2.9 “Dividend Equivalent Right” shall mean the right of the holder thereof to receive credits
based on the cash dividends that would have been paid on the Shares specified in an Award granting
Dividend Equivalent Rights if the Shares subject to such Award were held by the person to whom the
Award is made.

     2.10 “Exchange Act” shall mean the Securities Exchange Act of 1934, as amended from time to
time.

     2.11 “Fair Market Value” shall mean with respect to the Shares, as of any date, (i) the last
reported sales price on any stock exchange on which the Common Stock is traded, currently the New
York Stock Exchange, or, in the event that there shall be no public market for the Common Stock,
the fair market value of the Common Stock as determined (which determination shall be conclusive)
in good faith by the Committee, based upon the value of the Company as a going concern, as if such
Common Stock were publicly owned stock, but without any discount with respect to minority
ownership.

     2.12 “Incentive Stock Option” shall mean any stock option awarded under the 2004 Flexible
Plan which qualifies as an “incentive stock option” under Section 422 of the Code or any successor
provision.

     2.13 “Non-Tandem Stock Appreciation Right” shall mean any Stock Appreciation Right granted
alone and not in connection with an Award which is a stock option.

     2.14 “Non-Qualified Stock Option” shall mean any stock option awarded under the 2004 Flexible
Plan that does not qualify as an Incentive Stock Option.

     2.15 “Optionee” shall mean any Participant who has been granted a stock option under the 2004
Flexible Plan and who has executed a written stock option agreement with the Company reflecting the
terms of such grant.

     2.16 “Participant” shall mean an individual who is eligible to receive an Award in accordance
with Section 5.

     2.17 “Performance Award” shall mean any Award hereunder of Shares, units or rights based
upon, payable in, or otherwise related to, Shares (including Restricted Stock), or cash of an
equivalent value, as the Committee may determine, at the end of a specified performance period
established by the Committee.

     2.18 “2004 Flexible Plan” shall mean the HCC Insurance Holdings, Inc. 2004 Flexible Incentive
Plan, as set forth herein and as may be amended from time to time.

     2.19 “Restricted Stock” shall mean any Award of Shares under the 2004 Flexible Plan that is
subject to restrictions or risk of forfeiture.

     2.20 “Retirement” unless otherwise defined in any other agreement regarding an Award, shall
mean termination of a Participant’s employment other than for cause on or after the attainment of
age 65 (or such other age as is permitted for the Participant by the Committee in its sole
discretion); provided the Participant does not engage in full time employment with any other
entity.

     2.21 “Shareholders” shall mean the holders of Shares and/or, to the extent the context
requires, other equity securities of the Company.

 

 

     2.22 “Shares” shall mean shares of the Company’s Common Stock and any shares of capital stock
or other securities of the Company hereafter issued or issuable upon, in respect of or in
substitution or exchange for such Shares.

     2.23 “Stock Appreciation Right” shall mean the right of the holder thereof to receive an
amount in cash or Shares equal to the excess of the Fair Market Value of a Share on the date of
exercise over the Fair Market Value of a Share on the date of the grant (or such other value as may
be specified in the agreement granting the Stock Appreciation Right).

     2.24 “Subsidiary” shall mean any subsidiary of the Company, and any business venture
designated by the Committee in which the Company has a significant interest at the relevant time,
as determined in the discretion of the Committee, provided that for all purposes hereunder relating
to Incentive Stock Options, “Subsidiary” shall mean a “subsidiary corporation” of the Company at
the relevant time, as defined in Section 424(f) of the Code.

     2.25 “Tandem Stock Appreciation Right” shall mean a Stock Appreciation Right granted in
connection with an Award which is a stock option.

3. Administration of the 2004 Flexible Plan

     3.1 Committee. The 2004 Flexible Plan shall be administered and interpreted by the Committee
in its discretion.

     3.2 Awards. Subject to the provisions of the 2004 Flexible Plan and directions from the
Board, the Committee is authorized to and has the complete power and discretion to:

     (a) determine the persons to whom Awards are to be granted;

     (b) determine the types and combinations of Awards to be granted; the number of Shares to be
covered by the Award; the pricing of the Award; the time or times when the Award shall be granted
and may be exercised; the terms, performance criteria or other conditions, vesting periods or any
restrictions for an Award; any restrictions on Shares acquired pursuant to the exercise of an
Award; and any other terms and conditions of an Award, including, without limitation, provisions
requiring the forfeiture of Awards and/or gains from Awards if a Participant is terminated for
cause or if a Participant or former Participant violates any applicable affirmative or negative
covenants regarding confidentiality, non-solicitation, or non-competition;

     (c) conclusively interpret the provisions of the 2004 Flexible Plan and any agreement,
instrument, or other document relating to the 2004 Flexible Plan;

     (d) prescribe, amend and rescind the rules and regulations relating to the 2004 Flexible
Plan or make individual decisions as questions arise, or both;

     (e) determine whether, to what extent and under what circumstances to provide loans and/or
bonuses from the Company to Participants in connection with the exercise of Awards, and the terms
and conditions of such bonuses and/or loans, provided that loans shall not be provided to a
Participant to the extent prohibited by applicable law;

     (f) rely upon employees, consultants, and agents of the Company for such clerical and record
keeping duties as may be necessary in connection with the administration of the 2004 Flexible
Plan; and

     (g) make all other determinations and take all other actions necessary or advisable for the
administration of the 2004 Flexible Plan.

     3.3 Procedures. A majority of the Committee members shall constitute a quorum. All
determinations of the Committee shall be made by a majority of its members. All questions of
interpretation and application of the 2004 Flexible Plan or pertaining to any question of fact or
Award granted hereunder shall be decided by the Committee, whose decision shall be final,
conclusive and binding upon the Company and each other affected party.

     3.4 Delegation by the Committee. Subject to the last two sentences of Section 2.5, the
Committee may delegate to officers of the Company, pursuant to a written delegation, the authority
to perform specified functions under the

 

 

2004 Flexible Plan. Any actions taken by any officers of the Company pursuant to such written
delegation of authority shall be deemed to have been taken by the Committee.

     3.5 Foreign Participation. To ensure the viability of awards granted to Participants
employed in foreign countries, the Committee may provide for such special terms as it may consider
necessary or appropriate to accommodate differences in local law, tax policy or custom. Moreover,
to the extent permitted by applicable law and to the extent such authority would not adversely
affect the 2004 Flexible Plan, Participants, or Awards, the Committee may approve such supplements
to, or amendments, restatements or alternative versions of the 2004 Flexible Plan as it may
consider necessary or appropriate for such purposes without thereby affecting the terms of the 2004
Flexible Plan as in effect for any other purposes; provided that, no such supplements, amendments,
restatements or alternative versions shall increase the Share limitations contained in Section 4 of
the Plan or change the eligibility provisions of Section 5 of the Plan; and provided further than
any such supplement, amendment, restatement, or alternative version shall be approved by the
Shareholders to the extent required by Section 14.1(b) or (c).

4. Shares Subject to 2004 Flexible Plan

     4.1 Limitations. The Shares issued pursuant to the 2004 Flexible Plan may be authorized but
unissued Shares, or may be issued Shares which have been reacquired by the Company.

     (a) The maximum number of Shares that may be issued with respect to Awards under the 2004
Flexible Plan shall not exceed 5,000,000, subject to adjustment as provided in Section 13.

     (b) The maximum number of Shares (or cash equivalent value) with respect to which stock
options or Stock Appreciation Rights may be granted hereunder to any Participant during any
calendar year may not exceed 500,000 Shares, subject to adjustment as provided in Section 13.

     4.2 Changes. To the extent that any Award under the 2004 Flexible Plan shall be forfeited,
shall expire unexercised or shall be canceled, in whole or in part, then the number of Shares
covered by the Award to the extent forfeited, expired or canceled may again be awarded pursuant to
the provisions of the 2004 Flexible Plan without again counting against the limitation specified in
Section 4.1(a). Notwithstanding the foregoing, to the extent required for Awards intended to
constitute — “qualified performance-based compensation” under Code Section 162(m) to satisfy such
requirements of Code Section 162(m), Shares subject to a stock option or Stock Appreciation Right
that is cancelled shall not again be available under the Plan for purposes of Section 4.1(b) and
such other purposes, if any, as are required to satisfy such requirements under Code Section
162(m). In the event that Shares are delivered to the Company in full or partial payment of the
exercise price for the exercise of a stock option granted under the 2004 Flexible Plan, the number
of Shares available for future Awards under the 2004 Flexible Plan shall be reduced only by the net
number of Shares issued upon the exercise of the option. Awards that may be satisfied either by the
issuance of Shares or by cash or other consideration shall, until the form of consideration to be
paid is finally determined, be counted against the maximum number of Shares that may be issued
under the 2004 Flexible Plan. If the Award is ultimately satisfied by the payment of consideration
other than Shares, as, for example, a stock option granted in tandem with a Stock Appreciation
Right that is settled by a cash payment of the stock appreciation, such Shares may again be made
the subject of an Award under the 2004 Flexible Plan. Awards will not reduce the number of Shares
that may be issued pursuant to the 2004 Flexible Plan if the settlement of the Award will not
require the issuance of Shares, as, for example, a Stock Appreciation Right that can be satisfied
only by the payment of cash.

5. Eligibility

     An individual shall be eligible to participate in the Plan and receive Awards hereunder if the
individual is an employee of the Company or a Subsidiary or if the individual otherwise provides
services to the Company or a Subsidiary as an officer, consultant or nonemployee Director or in any
other capacity; provided that Incentive Stock Options may only be awarded to individuals who are
employees of the Company or a Subsidiary. In making any determination as to persons to whom Awards
shall be granted, the type of Award, and/or the number of Shares to be covered by the Award, the
Committee shall consider the position and responsibilities of the Participant; his or her
importance to the Company and its Subsidiaries; the duties of such person; his or her past, present
and potential

 

 

contributions to the growth and success of the Company and its Subsidiaries; and such other
factors as the Committee shall deem relevant in connection with accomplishing the purposes of the
2004 Flexible Plan.

6. Stock Options

     6.1 Grants. The Committee may grant stock options alone or in addition to other Awards
granted under the 2004 Flexible Plan to any Participant. Each person so selected shall be offered
an option to purchase the number of Shares determined by the Committee. The Committee shall specify
whether such option is an Incentive Stock Option or Non-Qualified Stock Option and any other terms
and conditions relating to such Award. Each such person so selected shall have a reasonable period
of time within which to accept or reject the offered option. Failure to accept within the period so
fixed by the Committee may be treated as a rejection. Each person who accepts an option shall enter
into a written agreement with the Company, in such form as the Committee may prescribe, setting
forth the terms and conditions of the option (including the extent to which the option is an
Incentive Stock Option or Non-Qualified Stock Option), consistent with the provisions of the 2004
Flexible Plan. To the extent that any stock option does not qualify as an Incentive Stock Option
(whether because of its provisions or the time or manner of its exercise or otherwise), such stock
option or the portion thereof which does not qualify shall automatically constitute a separate
Non-Qualified Stock Option without any further action and notwithstanding the original designation
of the option as an Incentive Stock Option. Nothing in this Plan shall be interpreted as a
representation, guarantee, or other understanding on the part of the Company that any particular
option will be determined to be an Incentive Stock Option under Section 422 of the Code. At any
time and from time to time, the Optionee and the Company may agree to modify an option agreement so
that an Incentive Stock Option may be converted to a Non-Qualified Stock Option. The Committee may
require that an Optionee meet certain conditions before the option or a portion thereof may vest or
be exercised, as, for example, that the Optionee remain in the employ or active service of the
Company for a stated period or periods of time before the option, or stated portions thereof, may
vest or be exercised.

     6.2 Option Price. The option exercise price of the Shares covered by each stock option shall
be determined by the Committee; provided, however, that the option exercise price of a stock option
shall not be less than one hundred percent (100%) of the Fair Market Value of Shares on the date of
the grant of such stock option. Subject to the provisions of Section 13, the exercise price of a
stock option issued in accordance with this 2004 Flexible Plan shall not be adjusted or amended
following the issuance of such stock option.

     6.3 Incentive Stock Options Limitations.

     (a) To the extent required by Section 422 of the Code, in no event shall any person be
granted Incentive Stock Options to the extent that the Shares covered by any Incentive Stock
Options (and any Incentive Stock Options granted under any other plans of the Company and its
Subsidiaries) that may be exercised for the first time by such person in any calendar year have
an aggregate Fair Market Value in excess of $100,000. For this purpose, the Fair Market Value of
the Shares shall be determined as of the dates on which the Incentive Stock Options are granted.
It is intended that the limitation on Incentive Stock Options provided in this Subsection 6.3(a)
be the maximum limitation on options which may be considered Incentive Stock Options under the
Code, and this Subsection 6.3(a) shall be construed and applied in accordance with Section 422
of the Code.

     (b) Notwithstanding anything herein to the contrary, in no event shall any Participant
owning more than ten percent (10%) of the total combined voting power of the Company or any
Subsidiary be granted an Incentive Stock Option hereunder unless (1) the option exercise price
shall be at least one hundred ten percent (110%) of the Fair Market Value of the Shares subject
to such Incentive Stock Option at the time that the Incentive Stock Option is granted and (2)
the term of such Incentive Stock Option shall not exceed five (5) years.

     6.4 Option Term. Subject to Subsection 6.3(b) hereof, the term of a stock option shall be
for such period of months or years from the date of its grant as may be determined by the
Committee; provided, however, that no stock option shall be exercisable later than ten (10) years
from the date of its grant. Subject to the foregoing, a stock option granted to a Participant who
is not an employee of the Company or any Subsidiary shall be exercisable at such time and to such
extent (including after termination of such Participant’s service for the Company) as is expressly
provided in the option agreement. The extent to which a stock option that is granted to a
Participant who is an employee of the Company or any Subsidiary may be exercised by the Participant
or the Participant’s Designated Beneficiary after the Participant’s termination of employment with
the Company and all Subsidiaries (including by

 

 

reason of Disability) shall be determined by the Committee and incorporated into the terms of
the applicable option agreement.

     6.5 Vesting of Stock Options.

     (a) Each stock option granted hereunder may only be exercised to the extent that the
Optionee is vested in such option. Each stock option shall vest separately in accordance with
the option vesting schedule, if any, determined by the Committee in its sole discretion, which
will be incorporated in the stock option agreement entered into between the Company and each
Optionee and only to the extent that the Optionee remains in the continuous employ or service of
the Company or a Subsidiary. The option vesting schedule will be accelerated if, in the sole
discretion of the Committee, the Committee determines that acceleration of the option vesting
schedule would be desirable for the Company.

     (b) In the event of the dissolution or liquidation of the Company, each stock option
granted under the 2004 Flexible Plan shall terminate as of a date to be fixed by the Board;
provided, however, that not less than thirty (30) days’ written notice of the date so fixed
shall be given to each Optionee and each such Optionee shall be fully vested in and shall have
the right during such period to exercise the option, even though such option would not otherwise
be exercisable under the option vesting schedule. At the end of such period, any unexercised
option shall terminate and be of no other effect.

     (c) In the event of a Reorganization (as defined in Section 2.3 hereof):

     (1) If there is no plan or agreement respecting the Reorganization, or if such plan or
agreement does not specifically provide for the change, conversion or exchange of the Shares
under outstanding and unexercised stock options for other securities then the provisions of
Subsection 6.5(b) shall apply as if the Company had dissolved or been liquidated on the
effective date of the Reorganization; or

     (2) If there is a plan or agreement respecting the Reorganization, and if such plan or
agreement specifically provides for the change, conversion or exchange of the Shares under
outstanding and unexercised stock options for securities of another corporation, then the Board
shall adjust the Shares under such outstanding and unexercised stock options (and shall adjust
the Shares remaining under the 2004 Flexible Plan which are then available to be awarded under
the 2004 Flexible Plan, if such plan or agreement makes no specific provision therefor) in a
manner not inconsistent with the provisions of such plan or agreement for the adjustment,
change, conversion or exchange of such Shares and such options.

     (3) The Committee may provide in an option agreement and/or Stock Appreciation Rights
agreement that in the event of a Change in Control of the Company, (i) all or a portion of the
stock options and any associated Stock Appreciation Rights awarded under such agreement shall
become fully vested and immediately exercisable and/or (ii) the vesting of all performance-based
stock options shall be determined as if the performance period or cycle applicable to such stock
options had ended immediately upon such Change in Control; provided, however, that if in the
opinion of counsel to the Company the immediate exercisability of options when taken into
consideration with all other “parachute payments” as defined in Section 280G of the Code, would
result in an “excess parachute payment” as defined in such section as well as an excise tax
imposed by Section 4999 of the Code, such options and any associated Stock Appreciation Rights
shall become fully vested and immediately exercisable, except as and to the extent the Committee
in its sole discretion, shall otherwise determine, which determination by the Committee shall be
based solely upon maximizing the after-tax benefits to be received by any such Optionee. If the
Committee does not provide for accelerated vesting in an option or Stock Appreciation Rights
agreement pursuant to this Subsection 6.5(c)(3), such option and/or Stock Appreciation Right
shall vest, if at all, solely in accordance with the terms of the agreement and the other terms
of this Plan.

     6.6 Exercise of Stock Options.

     (a) Stock options may be exercised as to Shares only in amounts and at intervals of time
specified in the written option agreement between the Company and the Optionee. Each exercise of
a stock option, or any part thereof, shall be evidenced by a written notice to the Company. The
purchase price of the Shares as to which an option shall be exercised shall be paid in full at
the time of exercise, and may be paid to the Company either:

     (1) in cash (including check, bank draft or money order);

 

 

     (2) by the delivery of Shares having a Fair Market Value equal to the aggregate purchase
price;

     (3) by a combination of cash and Shares; or

     (4) by other consideration deemed acceptable by the Committee in its sole discretion.

     Without limiting the authority of the Committee under Section 3.2(e), the Company in its
sole and absolute discretion and at or about the time of exercise of a stock option may pay a
bonus to the Optionee or, to the extent permitted by applicable law, make a loan available to
the Optionee.

     (b) An Optionee shall not have any of the rights of a Shareholder with respect to the
Shares covered by a stock option except to the extent that one or more certificates representing
such Shares shall have been delivered to the Optionee, or the Optionee has been determined to be
a Shareholder of record by the Company’s transfer agent, upon due exercise of the option.

     6.7 Date of a Stock Option Grant. The granting of a stock option shall take place only upon
the execution and delivery by the Company and an Optionee of a written option agreement. Neither
any action taken by the Board nor anything contained in the 2004 Flexible Plan or in any resolution
adopted or to be adopted by the Board or the Shareholders shall constitute the granting of a stock
option under the 2004 Flexible Plan.

7. Stock Appreciation Rights

     7.1 Grants. The Committee may grant to any Participant either Non-Tandem Stock Appreciation
Rights or Tandem Stock Appreciation Rights. Stock Appreciation Rights shall be subject to such
terms and conditions as the Committee shall impose. The grant of the Stock Appreciation Right may
provide that the holder may be paid for the value of the Stock Appreciation Right either in cash or
in Shares, or a combination thereof, at the discretion of the Committee. In the event of the
exercise of a Stock Appreciation Right payable in Shares, the holder of the Stock Appreciation
Right shall receive that number of whole Shares of stock of the Company having an aggregate Fair
Market Value on the date of exercise equal to the value obtained by multiplying (i) either (a) in
the case of a Tandem Stock Appreciation Right, the difference between the Fair Market Value of a
Share on the date of exercise over the per share exercise price of the related option, or (b) in
the case of a Non-Tandem Stock Appreciation Right the difference between the Fair Market Value of a
Share on the date of exercise over the Fair Market Value on the date of the grant by (ii) the
number of Shares as to which the Stock Appreciation Right is exercised. However, notwithstanding
the foregoing, the Committee, in its sole discretion, may place a ceiling on the amount payable
upon exercise of a Stock Appreciation Right, but any such limitation shall be specified at the time
that the Stock Appreciation Right is granted.

     7.2 Exercisability. A Tandem Stock Appreciation Right may be granted at the time of the
grant of the related stock option or, if the related stock option is a Non-Qualified Stock Option,
at any time thereafter during the term of the stock option. A Tandem Stock Appreciation Right
granted in connection with an Incentive Stock Option (i) may be exercised at, and only at, the
times and to the extent the related Incentive Stock Option is exercisable, (ii) expires upon the
termination of the related Incentive Stock Option, (iii) may not exceed 100% of the difference
between the exercise price of the related Incentive Stock Option and the Fair Market Value of the
Shares subject to the related Incentive Stock Option at the time the Tandem Stock Appreciation
Right is exercised and (iv) may be exercised at, and only at, such times as the Fair Market Value
of the Shares subject to the related Incentive Stock Option exceeds the exercise price of the
related Incentive Stock Option. The Tandem Stock Appreciation Right may be transferred at, and only
at, the times and to the extent the related stock option is transferable. If a Tandem Stock
Appreciation Right is granted, there shall be surrendered and canceled from the related option at
the time of exercise of the Tandem Stock Appreciation Right, in lieu of exercise under the related
option, that number of Shares as shall equal the number of Shares as to which the Tandem Stock
Appreciation Right shall have been exercised.

     7.3 Certain Limitations on Non-Tandem Stock Appreciation Rights. A Non-Tandem Stock
Appreciation Right will be exercisable as provided by the Committee and will have such other terms
and conditions as the Committee may determine. A Non-Tandem Stock Appreciation Right is subject to
acceleration of vesting or immediate termination in certain circumstances in the same manner as
stock options pursuant to Sections 6.4 and 6.5 of the 2004 Flexible Plan.

 

 

     7.4 Limited Stock Appreciation Rights. The Committee is also authorized to grant “Limited
Stock Appreciation Rights,” either as Tandem Stock Appreciation Rights or Non-Tandem Stock
Appreciation Rights. Limited Stock Appreciation Rights would become exercisable only upon the
occurrence of a Change in Control or such other event as the Committee may designate at the time of
grant or thereafter.

8. Restricted Stock

     8.1 Grants. The Committee may grant Awards of Restricted Stock for no cash consideration,
for such minimum consideration as may be required by applicable law, or for such other
consideration as may be specified by the grant. The terms and conditions of the Restricted Stock
shall be specified by the grant agreement. The Committee, in its sole discretion, may specify any
particular rights which the person to whom an Award of Restricted Stock is made shall have in the
Restricted Stock during the restriction period and the restrictions applicable to the particular
Award, the vesting schedule (which may be based on service, performance or other factors) and
rights to acceleration of vesting (including, without limitation, whether non-vested Shares are
forfeited or vested upon termination of employment or service). Further, the Committee may award
performance-based Restricted Stock by conditioning the grant or vesting or such other factors, such
as the release, expiration or lapse of restrictions upon any such Award (including the acceleration
of any such conditions or terms) of such Restricted Stock, upon the attainment of specified
performance goals or such other factors as the Committee may determine. The Committee shall also
determine when the restrictions shall lapse or expire and the conditions, if any, under which the
Restricted Stock will be forfeited or sold back to the Company. Each Award of Restricted Stock may
have different restrictions and conditions. The Committee, in its discretion, may prospectively
change the restriction period and the restrictions applicable to any particular Award of Restricted
Stock. Unless otherwise set forth in the 2004 Flexible Plan, Restricted Stock may not be disposed
of by the recipient until the restrictions specified in the Award expire.

     8.2 Awards and Certificates. Any Restricted Stock issued hereunder may be evidenced in such
manner as the Committee, in its sole discretion, shall deem appropriate including, without
limitation, book-entry registration or issuance of a stock certificate or certificates. In the
event any stock certificate is issued in respect of Shares of Restricted Stock awarded hereunder,
such certificate shall bear an appropriate legend with respect to the restrictions applicable to
such Award. The Company may retain, at its option, the physical custody of any stock certificate
representing any awards of Restricted Stock during the restriction period or require that the
Restricted Stock be placed in escrow or trust, along with a stock power endorsed in blank, until
all restrictions are removed or expire.

9. Performance Awards

     9.1 Grants. A Performance Award may consist of either or both, as the Committee may
determine, (i) “Performance Shares” or the right to receive Shares, Restricted Stock or cash of an
equivalent value, or any combination thereof as the Committee may determine, or (ii) “Performance
Units,” or the right to receive a fixed dollar amount payable in cash, Shares, Restricted Stock or
any combination thereof, as the Committee may determine. The Committee may grant Performance Awards
to any Participant for no cash consideration, for such minimum consideration as may be required by
applicable law or for such other consideration as may be specified at the time of the grant. The
terms and conditions of Performance Awards shall be specified at the time of the grant and may
include provisions establishing the performance period, the performance criteria to be achieved
during a performance period, the criteria used to determine vesting (including the acceleration
thereof), whether Performance Awards are forfeited or vest upon termination of employment or
service during a performance period and the maximum or minimum settlement values. Each Performance
Award shall have its own terms and conditions, which shall be determined at the discretion of the
Committee. If the Committee determines, in its sole discretion, that the established performance
measures or objectives are no longer suitable because of a change in the Company’s business,
operations, corporate structure or for other reasons that the Committee deems satisfactory, the
Committee may modify the performance measures or objectives and/or the performance period.

     9.2 Terms and Conditions. Performance Awards may be valued by reference to the Fair Market
Value of a Share or according to any formula or method deemed appropriate by the Committee, in its
sole discretion, including, but not limited to, achievement of specific financial, production,
sales, cost or earnings performance objectives that the Committee believes to be relevant to the
Company’s business and for remaining in the employ or active service of the Company for a specified
period of time, or the Company’s performance or the performance of its Shares measured against the
performance of the market, the Company’s industry segment or its direct competitors. Performance
Awards may be paid in cash, Shares (including Restricted Stock) or other consideration, or any

 

 

combination thereof. If payable in Shares, the consideration for the issuance of the Shares
may be the achievement of the performance objective established at the time of the grant of the
Performance Award. Performance Awards may be payable in a single payment or in installments and may
be payable at a specified date or dates or upon attaining the performance objective, all at the
Committee’s discretion. The extent to which any applicable performance objective has been achieved
shall be conclusively determined by the Committee.

10. Dividend Equivalent Rights

     The Committee may grant a Dividend Equivalent Right either as a component of another Award or
as a separate Award, and, in general, each such holder of a Dividend Equivalent Right that is
outstanding on a dividend record date for the Company’s Common Stock shall be credited with an
amount equal to the cash or stock dividends or other distributions that would have been received
had the Shares covered by the Award been issued and outstanding on the dividend record date. The
terms and conditions of the Dividend Equivalent Right shall be specified by the grant. Dividend
equivalents credited to the holder of a Dividend Equivalent Right may be paid currently or may be
deemed to be reinvested in additional Shares (which may thereafter accrue additional Dividend
Equivalent Rights). Any such reinvestment shall be at the Fair Market Value of the Shares at the
time thereof. Dividend Equivalent Rights may be settled in cash or Shares, or a combination
thereof, in a single payment or in installments. A Dividend Equivalent Right granted as a component
of another Award may provide that such Dividend Equivalent Right shall be settled upon exercise,
settlement or payment for or lapse of restrictions on such other Award and that such Dividend
Equivalent Right shall expire or be forfeited or annulled under the same conditions as such other
Award. A Dividend Equivalent Right granted as a component of another Award may also contain terms
and conditions different from such other Award.

11. Other Awards

     The Committee may grant to any Participant other forms of Awards based upon, payable in or
otherwise related to, in whole or in part, Shares, if the Committee, in its sole discretion,
determines that such other form of Award is consistent with the purposes and restrictions of the
2004 Flexible Plan. The terms and conditions of such other form of Award shall be specified by the
grant including, but not limited to, the price, if any, and the vesting schedule, if any. Such
Awards may be granted for no cash consideration, for such minimum consideration as may be required
by applicable law or for such other consideration as may be specified by the grant.

12. Compliance with Securities and Other Laws

     In no event shall the Company be required to sell or issue Shares under any Award if the sale
or issuance thereof would constitute a violation of applicable Federal or state securities laws or
regulations or a violation of any other law or regulation of any governmental or regulatory agency
or authority or any national securities exchange on which the Shares are listed or traded. As a
condition to any sale or issuance of Shares, the Company may place legends on Shares, issue stop
transfer orders and require such agreements or undertakings as the Company may deem necessary or
advisable to assure compliance with any such laws or regulations, including, if the Company or its
counsel deems it appropriate, representations from the person to whom an Award is granted that he
or she is acquiring the Shares solely for investment and not with a view to distribution and that
no distribution of the Shares will be made unless registered pursuant to applicable Federal and
state securities laws, or in the opinion of counsel of the Company, such registration is
unnecessary.

13. Adjustments upon Changes in Capitalization or Reorganization

     The value of an Award in Shares and the number of Shares available for issuance hereunder
shall be adjusted from time to time as follows:

     (a) Subject to any required action by Shareholders, the number of Shares covered by each
outstanding Award, and the exercise price, shall be proportionately adjusted for any increase or
decrease in the number of issued Shares of the Company resulting from a subdivision or
consolidation of Shares or the payment of a stock dividend (but only in Shares) or any other
increase or decrease in the number of Shares affected without receipt of consideration by the
Company.

     (b) Subject to any required action by Shareholders, if the Company shall be the surviving
corporation in any Reorganization, merger or consolidation (or if the Company is not the
surviving corporation in such a transaction,

 

 

but the transaction does not constitute a Change in Control), each outstanding Award shall
pertain to and apply to the securities to which a holder of the number of Shares subject to the
Award would have been entitled, and if a plan or agreement reflecting any such event is in
effect that specifically provides for the change, conversion or exchange of Shares, then any
adjustment to Shares relating to an Award hereunder shall not be inconsistent with the terms of
any such plan or agreement.

     (c) In the event of a change in the Shares of the Company as presently constituted, which
is limited to a change of par value into the same number of Shares with a different par value or
without par value, the Shares resulting from any such change shall be deemed to be the Shares
within the meaning of the 2004 Flexible Plan.

     To the extent that the foregoing adjustments relate to stock or securities of the Company,
such adjustments shall be made by the Board, whose determination shall be final, binding and
conclusive.

     Except as hereinbefore expressly provided in the 2004 Flexible Plan, any person to whom an
Award is granted shall have no rights by reason of any subdivision or consolidation of stock of any
class or the payment of any stock dividend or any other increase or decrease in the number of
shares of stock of any class or by reason of any dissolution, liquidation, reorganization, merger
or consolidation or spin-off of assets or stock of another corporation, and any issue by the
Company of shares of stock of any class, or securities convertible into shares of stock of any
class, shall not affect and no adjustment by reason thereof shall be made with respect to, the
number or exercise price of Shares subject to an Award. The grant of an Award pursuant to the 2004
Flexible Plan shall not affect in any way the right or power of the Company to make adjustments,
reclassifications, Reorganizations or changes of its capital or business structure or to merge or
to consolidate or to dissolve, liquidate or sell or transfer all or any part of its business or
assets.

14. Amendment or Termination of the 2004 Flexible Plan

     14.1 Amendment of the 2004 Flexible Plan. Notwithstanding anything contained in the 2004
Flexible Plan to the contrary, all provisions of the 2004 Flexible Plan may at any time or from
time to time be modified or amended by the Board; provided, however, that

     (a) no Award at any time outstanding under the 2004 Flexible Plan may be modified, impaired
or canceled adversely to the holder of the Award without the consent of such holder;

     (b) to the extent required by Section 422 of the Code, as it may be amended from time to
time, any amendment which (i) increases the maximum number of Shares subject to the 2004
Flexible Plan (other than an increase merely reflecting a change in the number of outstanding
Shares, such as a stock dividend or stock split), (ii) modifies the individuals or classes of
individuals eligible to receive Awards, (iii) changes the corporation with respect to which
“Shares” are defined, or (iv) modifies the definition of “Company” to refer to another entity
(other than a successor to HCC Insurance Holdings, Inc.) must be approved by the Shareholders
within the twenty-four (24)-month period beginning twelve (12) months before the date the
amendment is adopted; and

     (c) to the extent the Company is subject to the listing requirements of the New York Stock
Exchange, as they may be amended from time to time, any amendment which constitutes a material
revision of the Plan must be approved by the Shareholders in accordance with and to the extent
required by such listing requirements.

     14.2 Termination of the 2004 Flexible Plan; Maximum Plan Term. The Board may suspend or
terminate the 2004 Flexible Plan at any time, and such suspension or termination may be retroactive
or prospective. No Award may be granted on or after the tenth anniversary of the initial effective
date specified in Section 16.7. However, if the Plan is amended or restated and the Plan as so
amended or restated is approved by the Shareholders, the Plan shall be deemed to be a new Plan and
the date on which the amendment or restatement is adopted by the Board (or the date of approval by
the Shareholders, if earlier) shall be substituted for the initial effective date in the
immediately preceding sentence. Termination of the 2004 Flexible Plan shall not impair or affect
any Award previously granted hereunder and the rights of the holder of the Award shall remain in
effect until the Award has been exercised in its entirety or has expired or otherwise has been
terminated by the terms of such Award.

 

 

15. Amendments and Adjustments to Awards

     The Committee may amend, modify or terminate any outstanding Award with the Participant’s
consent at any time prior to payment or exercise in any manner not inconsistent with the terms of
the 2004 Flexible Plan, including, without limitation to change the date or dates as of which (a)
an option becomes exercisable or (b) a performance-based Award is deemed earned. The Committee is
also authorized to make adjustments in the terms and conditions of, and the criteria included in,
Awards in recognition of unusual or non-recurring events (including, without limitation, the events
described in Section 13 hereof) affecting the Company, or the financial statements of the Company
or any Affiliate, or of changes in applicable laws, regulations or accounting principles, whenever
the Committee determines that such adjustments are appropriate in order to prevent reduction or
enlargement of the benefits or potential benefits intended to be made available under the 2004
Flexible Plan. Notwithstanding Section 14.1(a) or any provision of the 2004 Flexible Plan or any
agreement regarding an Award to the contrary, the Committee may cause any Award granted to be
canceled in consideration of a cash payment or alternative Award made to the holder of such
canceled Award in an amount equal to the value of such canceled Award. The determinations of value
under this Section 15 shall be made by the Committee in its sole discretion.

16. General Provisions

     16.1 No Limit on Other Compensation Arrangements. Nothing contained in the 2004 Flexible
Plan shall prevent the Company from adopting or continuing in effect other compensation
arrangements, and such arrangements may be either generally applicable or applicable only in
specific cases.

     16.2 No Right to Employment. Nothing in the 2004 Flexible Plan or in any Award, nor the
grant of any Award, shall confer upon or be construed as giving any recipient of an Award any right
to remain in the employ or service of the Company or any Subsidiary. Further, the Company and its
Subsidiaries may at any time dismiss a Participant from employment or service, free from any
liability or any claim under the 2004 Flexible Plan, unless otherwise expressly provided in the
2004 Flexible Plan or in any Award agreement. No Participant, employee, Optionee or other person
shall have any claim to be granted any Award, and there is no obligation for uniformity or
treatment of employees, Participants or holders or beneficiaries of Awards.

     16.3 Governing Law. Except to the extent that Federal law is controlling, the validity,
construction and effect of the 2004 Flexible Plan and any rules and regulations relating to the
2004 Flexible Plan shall be determined in accordance with the laws of the State of Texas, without
giving effect to the conflicts of laws principles thereof.

     16.4 Severability. If any provision of the 2004 Flexible Plan or any Award is or becomes or
is deemed to be invalid, illegal or unenforceable in any jurisdiction or as to any person or Award,
or would disqualify the 2004 Flexible Plan or any Award under any law deemed applicable by the
Committee, such provision shall be construed or deemed amended to conform to applicable laws, or if
it cannot be construed or deemed amended without, in the sole determination of the Committee,
materially altering the intent of the 2004 Flexible Plan or the Award, such provision shall be
stricken as to such jurisdiction, person or Award and the remainder of the 2004 Flexible Plan and
any such Award shall remain in full force and effect.

     16.5 No Fractional Shares. No fractional Shares shall be issued or delivered pursuant to the
2004 Flexible Plan or any Award, and the Committee shall determine whether cash, other securities
or other property shall be paid or transferred in lieu of any fractional Shares or whether such
fractional Shares or any rights thereto shall be canceled, terminated or otherwise eliminated.

     16.6 Headings. Headings are given to the Sections and Subsections of the 2004 Flexible Plan
solely as a convenience to facilitate reference. Such headings shall not be deemed in any way
material or relevant to the construction or interpretation of the 2004 Flexible Plan or any
provision thereof.

     16.7 Effective Date and Shareholder Approval. The 2004 Flexible Plan, as amended, shall be
effective as of May 13, 2004, after its approval by the Board effective as of such date and its
approval by the Shareholders at the Annual Meeting of Shareholders to be held on such date. For
purpose of this Plan, including this Section and Sections 14.1 and 14.2, Shareholder approval shall
be considered obtained if such approval complies with (a) all applicable provisions of the articles
of incorporation and bylaws of the Company and applicable state law prescribing the method and
degree of stockholder approval required for the issuance of corporate stock or options

 

 

(and if applicable state law does not prescribe such method and degree of stockholder
approval, such approval must otherwise be obtained in accordance with Code Section 422) and (b) any
applicable listing requirements of the New York Stock Exchange to the extent the Company is subject
to such requirements.

     16.8 Non-Transferability of Awards. Awards shall be nontransferable other than by will or
the laws of descent and distribution, and Awards may be exercised, during the lifetime of the
holder, only by the holder (or the holder’s duly appointed guardian or personal representative);
provided, however, that Awards other than Incentive Stock Options may be transferred (i) by the
holder to a family member, trust, charity, or similar organization for estate planning purposes and
(ii) with the approval of the Committee, as directed under a qualified domestic relations order.

     16.9 Withholding. The Company shall have the right to withhold or require separate payment
of all Federal, state, local or other taxes or payments required by law to be withheld or paid with
respect to any Award or payment made under the Plan. Such amounts shall be withheld or paid prior
to the delivery of any certificate representing Shares or any other Award subject to such
withholding. Such a payment may be made by the delivery of cash (or other consideration acceptable
to the Company) to the Company in an amount that equals or exceeds the required withholding
obligation of the Company. In the event of a transfer of an Award, the Participant who assigns the
Award shall remain subject to withholding taxes or similar obligations upon exercise of the Award
by the transferee to the extent required by the Code or other applicable laws. All determinations
of withholding liability under this Section shall be made by the Company in its sole discretion and
shall be binding upon the Participant.

     16.10 Unfunded Plan. Unless otherwise determined by the Committee, the 2004 Flexible Plan
shall be unfunded and shall not create (or be construed to create) a trust or a separate fund or
funds. The 2004 Flexible Plan shall not establish any fiduciary relationship between the Company
and any Participant or other person. To the extent any person holds any rights by virtue of an
Award granted under the 2004 Flexible Plan, such rights shall be no greater than the rights of an
unsecured general creditor of the Company.

     16.11 Writing Requirement. A requirement hereunder that an agreement, notice, or other
instrument be written will be considered satisfied if the instrument is provided in electronic form
that is approved by the Committee and that may be retained and reproduced in paper form.

17. Code Section 162(m) Limitations

     17.1 Applicability. In the event of any inconsistencies between this Section 17 and the
other 2004 Flexible Plan provisions, the provisions of this Section 17 shall control.

     17.2 Establishment of Performance Goals. Awards, other than stock options and Stock
Appreciation Rights, shall be based on the attainment of certain performance goals. No later than
the earlier of (i) ninety (90) days after the commencement of the applicable fiscal year or such
other award period as may be established by the Committee (“Award Period”) and (ii) the completion
of twenty-five percent (25%) of such Award Period, the Committee shall establish, in writing, the
performance goals applicable to each such Award. At the time the performance goals are established
by the Committee, their outcome must be substantially uncertain. In addition, the performance goal
must state, in terms of an objective formula or standard, the method for computing the amount of
compensation payable to the Participant if the goal is obtained. Such formula or standard shall be
sufficiently objective so that a third party with knowledge of the relevant performance results
could calculate the amount to be paid to the subject Participant. The material terms of the
performance goals for Participants and the compensation payable thereunder shall be submitted to
the Shareholders for their review and approval if and to the extent required for such compensation
to be deductible pursuant to Section 162(m) (or any successor thereto) of the Code, and the
Treasury Regulations thereunder. Shareholder approval, if necessary, shall be obtained for such
performance goals prior to any Award being paid to such Participant. If Shareholder approval is
required and the Shareholders do not approve such performance goals, no amount shall be paid to
such Participant for such applicable Award Period under the 2004 Flexible Plan. The disclosure of
the “material terms” of a performance goal and the compensation payable thereunder shall be
determined under the guidelines set forth under Section 162(m) of the Code, and the Treasury
Regulations thereunder.

     17.3 Components of Awards. Each Award to a Participant, other than stock options and Stock
Appreciation Rights, shall be based on performance goals which are sufficiently objective so that a
third party having knowledge

 

 

of the relevant facts could determine whether the goal was met. Except as provided in Section
17.8 herein, performance measures which may serve as determinants of Awards shall be limited to the
following measures: earnings per share; return on assets; return on equity; return on capital; net
profit after taxes; net profit before taxes; economic value added; operating profits; stock price;
market share; and sales or expenses. Within ninety (90) days following the end of each Award
Period, the Committee shall certify in writing that the performance goals, and any other material
terms were satisfied. Thereafter, Awards shall be made for each Participant as determined by the
Committee. The Awards may not vary from the pre-established amount based on the level of
achievement.

     17.4 No Mid-Year Change in Awards. Except as provided in Sections 17.8 and 17.9 herein, each
Award, other than stock options and Stock Appreciation Rights, shall be based exclusively on the
performance measures established by the Committee pursuant to Sections 17.2 and 17.3.

     17.5 No Partial Award Period Participation. A Participant who becomes eligible to
participate in the 2004 Flexible Plan after performance goals have been established in an Award
Period pursuant to Sections 17.2 and 17.3 may not participation in the 2004 Flexible Plan prior to
the next succeeding Award Period, except with respect to Awards which are stock options or Stock
Appreciation Rights.

     17.6 Performance Goals. Except as provided in Section 17.8 herein, performance goals shall
not be changed following their establishment, and Participants shall not receive any payout, except
with respect to Awards which are stock options or Stock Appreciation Rights, when the minimum
performance goals are not met or exceeded.

     17.7 Individual Performance and Discretionary Adjustments. Except as provided in Section
17.8 herein, subjective evaluations of individual performance of the Participants shall not be
reflected in their Awards, other than Awards which are stock options or Stock Appreciation Rights.
The payment of such Awards shall be entirely dependent upon the attainment of the pre-established
performance goals.

     17.8 Amendments. No amendment of the 2004 Flexible Plan with respect to any Participant may
be made which would (i) increase the maximum amount that can be paid to any one Optionee under the
2004 Flexible Plan, (ii) change the specified performance goal for payment of Awards, or (iii)
modify the requirements as to eligibility for participation in the 2004 Flexible Plan, unless the
Shareholders have first approved such amendment in a manner which would permit the deduction under
Section 162(m) of the Code of such payment in the fiscal year it is paid. The Committee shall amend
this Section 17 and such other provisions as it deems appropriate, to cause amounts payable to
Participants to satisfy the requirements of Section 162(m) and the Treasury Regulations promulgated
thereunder.

     17.9 Stock Options and Stock Appreciation Rights; Maximum Amount of Compensation.
Notwithstanding any provision of this 2004 Flexible Plan (including the provisions of this Section
17) to the contrary, the amount of compensation which a Participant may receive with respect to
stock options and Stock Appreciation Rights which are granted hereunder shall be based solely on an
increase in the value of the applicable Shares after the date of grant of such Award. Thus, no
stock option may be granted hereunder to a Participant with an exercise price less than the Fair
Market Value of Shares on the date of grant. The maximum amount of compensation payable as an Award
(other than an Award which is a stock option or Stock Appreciation Right) to any Participant during
any calendar year may not exceed $1,000,000. Section 4.1(b) sets forth the maximum number of Shares
(or cash equivalent value) with respect to which stock options or Stock Appreciation Rights may be
granted to any Participant during any calendar year.

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