Document:

Exhibit 4.1

 

Exhibit 4.1

INDENTURE

DATED AS OF MARCH 18, 2008

BETWEEN

COEUR D’ALENE MINES CORPORATION

AND

THE BANK OF NEW YORK, TRUSTEE

DEBT SECURITIES

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page	 
	ARTICLE I            DEFINITIONS AND INCORPORATION BY REFERENCE
	 	 	1	 
	SECTION 1.01 DEFINITIONS
	 	 	1	 
	SECTION 1.02 INCORPORATION BY REFERENCE OF TRUST
INDENTURE ACT
	 	 	5	 
	SECTION 1.03 RULES OF CONSTRUCTION
	 	 	5	 
	 
	 	 	 	 
	ARTICLE II            THE SECURITIES
	 	 	5	 
	SECTION 2.01 FORM OF SECURITIES AND DATING
	 	 	5	 
	SECTION 2.02 EXECUTION AND AUTHENTICATION
	 	 	6	 
	SECTION 2.03 REGISTRAR, PAYING AGENT, CONVERSION AGENT, DEPOSITORY AND SECURITIES CUSTODIAN
	 	 	6	 
	SECTION 2.04 PAYING AGENT TO HOLD MONEY IN TRUST
	 	 	7	 
	SECTION 2.05 SECURITYHOLDER LISTS
	 	 	7	 
	SECTION 2.06 TRANSFER AND EXCHANGE
	 	 	7	 
	SECTION 2.07 REPLACEMENT SECURITIES
	 	 	10	 
	SECTION 2.08 OUTSTANDING SECURITIES
	 	 	10	 
	SECTION 2.09 TREASURY SECURITIES
	 	 	10	 
	SECTION 2.10 TEMPORARY SECURITIES
	 	 	11	 
	SECTION 2.11 CANCELLATION
	 	 	11	 
	SECTION 2.12 DEFAULTED INTEREST
	 	 	11	 
	 
	 	 	 	 
	ARTICLE III            REDEMPTION
	 	 	11	 
	SECTION 3.01 NOTICES TO TRUSTEE
	 	 	11	 
	SECTION 3.02 SELECTION OF SECURITIES TO BE REDEEMED
	 	 	11	 
	SECTION 3.03 NOTICE OF REDEMPTION
	 	 	12	 
	SECTION 3.04 EFFECT OF NOTICE OF REDEMPTION
	 	 	12	 
	SECTION 3.05 DEPOSIT OF REDEMPTION PRICE
	 	 	12	 
	SECTION 3.06 SECURITIES REDEEMED IN PART
	 	 	13	 
	 
	ARTICLE IV            COVENANTS
	 	 	13	 
	SECTION 4.01 PAYMENT OF SECURITIES
	 	 	13	 
	SECTION 4.02 SEC REPORTS
	 	 	13	 
	SECTION 4.03 COMPLIANCE CERTIFICATE
	 	 	13	 
	SECTION 4.04 STAY, EXTENSION AND USURY LAWS
	 	 	14	 

 

i

 

	 	 	 	 	 
	 	 	Page	 
	SECTION 4.05 LIQUIDATION
	 	 	14	 
	SECTION 4.06 RESERVATION OF SHARES OF COMMON STOCK FOR ISSUANCE UPON CONVERSION
	 	 	14	 
	 
	 	 	 	 
	ARTICLE V            SUCCESSORS
	 	 	14	 
	SECTION 5.01 WHEN COMPANY MAY MERGE, ETC
	 	 	14	 
	SECTION 5.02 SUCCESSOR CORPORATION SUBSTITUTED
	 	 	15	 
	 
	 	 	 	 
	ARTICLE VI            DEFAULTS AND REMEDIES
	 	 	15	 
	SECTION 6.01 EVENTS OF DEFAULT
	 	 	15	 
	SECTION 6.02 ACCELERATION
	 	 	16	 
	SECTION 6.03 OTHER REMEDIES
	 	 	17	 
	SECTION 6.04 WAIVER OF PAST DEFAULTS
	 	 	17	 
	SECTION 6.05 CONTROL BY MAJORITY
	 	 	17	 
	SECTION 6.06 LIMITATION ON SUITS
	 	 	17	 
	SECTION 6.07 RIGHTS OF HOLDERS TO RECEIVE PAYMENT
	 	 	18	 
	SECTION 6.08 COLLECTION SUIT BY TRUSTEE
	 	 	18	 
	SECTION 6.09 TRUSTEE MAY FILE PROOFS OF CLAIM
	 	 	18	 
	SECTION 6.10 PRIORITIES
	 	 	18	 
	SECTION 6.11 UNDERTAKING FOR COSTS
	 	 	19	 
	 
	 	 	 	 
	ARTICLE VII            TRUSTEE
	 	 	19	 
	SECTION 7.01 DUTIES OF TRUSTEE
	 	 	19	 
	SECTION 7.02 RIGHTS OF TRUSTEE
	 	 	20	 
	SECTION 7.03 INDIVIDUAL RIGHTS OF TRUSTEE
	 	 	20	 
	SECTION 7.04 TRUSTEE’S DISCLAIMER
	 	 	20	 
	SECTION 7.05 NOTICE OF DEFAULTS
	 	 	20	 
	SECTION 7.06 REPORTS BY TRUSTEE TO HOLDERS
	 	 	20	 
	SECTION 7.07 COMPENSATION AND INDEMNITY
	 	 	21	 
	SECTION 7.08 REPLACEMENT OF TRUSTEE
	 	 	21	 
	SECTION 7.09 SUCCESSOR TRUSTEE BY MERGER, ETC
	 	 	22	 
	SECTION 7.10 ELIGIBILITY; DISQUALIFICATION
	 	 	22	 
	SECTION 7.11 PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY
	 	 	22	 
	 
	 	 	 	 
	ARTICLE VIII            DISCHARGE OF INDENTURE
	 	 	23	 
	SECTION 8.01 TERMINATION OF COMPANY’S OBLIGATIONS
	 	 	23	 

ii

 

	 	 	 	 	 
	 	 	Page	 
	SECTION 8.02 APPLICATION OF TRUST MONEY
	 	 	23	 
	SECTION 8.03 REPAYMENT TO COMPANY
	 	 	23	 
	SECTION 8.04 REINSTATEMENT
	 	 	24	 
	 
	 	 	 	 
	ARTICLE IX            AMENDMENTS
	 	 	24	 
	SECTION 9.01 WITHOUT CONSENT OF HOLDERS
	 	 	24	 
	SECTION 9.02 WITH CONSENT OF HOLDERS
	 	 	24	 
	SECTION 9.03 COMPLIANCE WITH TRUST INDENTURE ACT
	 	 	25	 
	SECTION 9.04 REVOCATION AND EFFECT OF CONSENTS
	 	 	25	 
	SECTION 9.05 NOTATION ON OR EXCHANGE OF SECURITIES
	 	 	26	 
	SECTION 9.06 TRUSTEE PROTECTED
	 	 	26	 
	 
	 	 	 	 
	ARTICLE X            CONVERSION
	 	 	26	 
	SECTION 10.01 CONVERSION PRIVILEGE
	 	 	26	 
	SECTION 10.02 CONVERSION PROCEDURE
	 	 	27	 
	SECTION 10.03 FRACTIONAL SHARES
	 	 	27	 
	SECTION 10.04 TAXES ON CONVERSION
	 	 	27	 
	SECTION 10.05 COMPANY TO PROVIDE STOCK
	 	 	28	 
	SECTION 10.06 ADJUSTMENT FOR DIVIDENDS AND DISTRIBUTIONS
OF COMMON STOCK
	 	 	28	 
	SECTION 10.07 ADJUSTMENT FOR RIGHTS ISSUE
	 	 	28	 
	SECTION 10.08 ADJUSTMENT FOR OTHER DISTRIBUTIONS
	 	 	28	 
	SECTION 10.09 ADJUSTMENT FOR SUBDIVISION OF
COMMON STOCK
	 	 	29	 
	SECTION 10.10 ADJUSTMENT FOR RECLASSIFICATION OF COMMON STOCK
	 	 	29	 
	SECTION 10.11 [INTENTIONALLY OMITTED]
	 	 	29	 
	SECTION 10.12 WHEN ADJUSTMENT MAY BE DEFERRED
	 	 	29	 
	SECTION 10.13 WHEN NO ADJUSTMENT REQUIRED
	 	 	29	 
	SECTION 10.14 NOTICE OF ADJUSTMENT
	 	 	30	 
	SECTION 10.15 VOLUNTARY REDUCTION
	 	 	30	 
	SECTION 10.16 NOTICE OF CERTAIN TRANSACTIONS
	 	 	30	 
	SECTION 10.17 REORGANIZATION OF COMPANY
	 	 	31	 
	SECTION 10.18 COMPANY DETERMINATION FINAL
	 	 	31	 
	SECTION 10.19 TRUSTEE’S DISCLAIMER
	 	 	31	 

iii

 

	 	 	 	 	 
	 	 	Page	 
	ARTICLE XI            SUBORDINATION OF SECURITIES
	 	 	31	 
	SECTION 11.01 SECURITIES SUBORDINATE TO SENIOR DEBT
	 	 	31	 
	SECTION 11.02 NO PAYMENTS WHEN SENIOR DEBT IN DEFAULT; PAYMENT OVER OF PROCEEDS UPON DISSOLUTION, ETC.
	 	 	31	 
	SECTION 11.03 TRUSTEE TO EFFECTUATE SUBORDINATION
	 	 	34	 
	SECTION 11.04 TRUSTEE NOT CHARGED WITH KNOWLEDGE OF PROHIBITION
	 	 	34	 
	SECTION 11.05 RIGHTS OF TRUSTEE AS HOLDER OF SENIOR DEBT
	 	 	34	 
	SECTION 11.06 ARTICLE APPLICABLE TO PAYING AGENT
	 	 	34	 
	 
	 	 	 	 
	ARTICLE XII            RIGHT TO REQUIRE REPURCHASE
	 	 	35	 
	SECTION 12.01 RIGHT TO REQUIRE REPURCHASE
	 	 	35	 
	SECTION 12.02 NOTICE; METHOD OF EXERCISING
REPURCHASE RIGHT
	 	 	35	 
	SECTION 12.03 CERTAIN DEFINITIONS
	 	 	36	 
	SECTION 12.04 COMPLIANCE WITH RULE 13E-4
	 	 	37	 
	 
	 	 	 	 
	ARTICLE XIII            MISCELLANEOUS
	 	 	37	 
	SECTION 13.01 TRUST INDENTURE ACT CONTROLS
	 	 	37	 
	SECTION 13.02 NOTICES
	 	 	37	 
	SECTION 13.03 COMMUNICATION BY HOLDERS WITH OTHER
HOLDERS
	 	 	38	 
	SECTION 13.04 CERTIFICATE AND OPINION AS TO CONDITIONS PRECEDENT
	 	 	38	 
	SECTION 13.05 STATEMENTS REQUIRED IN CERTIFICATE OR
OPINION
	 	 	38	 
	SECTION 13.06 RULES BY TRUSTEE AND AGENTS
	 	 	39	 
	SECTION 13.07 LEGAL HOLIDAYS
	 	 	39	 
	SECTION 13.08 NO RECOURSE AGAINST OTHERS
	 	 	39	 
	SECTION 13.09 COUNTERPARTS
	 	 	39	 
	SECTION 13.10 GOVERNING LAW
	 	 	39	 
	SECTION 13.11 NO ADVERSE INTERPRETATION OF OTHER AGREEMENTS
	 	 	39	 
	SECTION 13.12 SUCCESSORS 
	 	 	39	 
	SECTION 13.13 SEVERABILITY
	 	 	39	 
	SECTION 13.14 TABLE OF CONTENTS, HEADINGS, ETC
	 	 	39	 

 iv 

 

 

CROSS-REFERENCE TABLE*

	 	 	 	 	 
	Trust Indenture

Act section 
	 	Indenture Section
	 
	310(a)(1)
	 	 	7.10	 
	(a)(2)
	 	 	7.10	 
	(a)(3)
	 	 	N.A.	 
	(a)(4)
	 	 	N.A.	 
	(b)
	 	 	7.08; 7.10; 13.02	 
	(c)
	 	 	N.A.	 
	310(b)(9)
	 	 	7.10	 
	311(a)
	 	 	7.11	 
	(b)
	 	 	7.11	 
	(c)
	 	 	N.A.	 
	312(a)
	 	 	2.05	 
	(b)
	 	 	13.03	 
	(c)
	 	 	13.03	 
	313(a)
	 	 	7.06	 
	(b)(1)
	 	 	N.A.	 
	(b)2)
	 	 	7.06	 
	(c)(3)
	 	 	7.06; 13.02	 
	314(a)
	 	 	4.02; 13.02	 
	(b)
	 	 	N.A.	 
	(c)(1)
	 	 	13.04	 
	(c)(2)
	 	 	13.04	 
	(c)(3)
	 	 	N.A.	 
	(d)
	 	 	N.A.	 
	(e)
	 	 	13.05	 
	(f)
	 	 	N.A.	 
	315(a)
	 	 	7.01	(b)
	(b)
	 	 	7.05; 13.02	 
	(c)
	 	 	7.01	(a)
	(d)
	 	 	7.01	(c)
	(e)
	 	 	6.11	 
	316(a) (last sentence)
	 	 	2.09	 
	(a)(1)(A)
	 	 	6.05	 
	(a)(1)(B)
	 	 	6.04	 
	(a)(2)
	 	 	N.A.	 
	(b)
	 	 	6.07	 
	317(a)(1)
	 	 	6.08	 
	(a)(2)
	 	 	6.09	 
	(b)
	 	 	2.04	 
	318(a)
	 	 	13.01	 

 

			
	 
	N.A. means not applicable.
	 
	*	 	This Cross-Reference Table is not part of the Indenture.

 v 

 

 

     INDENTURE dated as of March 18, 2008, between COEUR D’ALENE MINES CORPORATION, a corporation
duly organized and existing under the laws of the State of Idaho (the “Company”), having its
principal office at 505 Front Street, Coeur d’Alene, Idaho 83814, and THE BANK OF NEW YORK, a
banking corporation duly organized and validly existing under the laws of the State of New York, as
Trustee (the “Trustee”), having its principal office at 101 Barclay Street, Floor 4E, New York, NY
10286.

     Each party agrees as follows for the benefit of the other party and for the equal and ratable
benefit of the Holders of the Company’s debentures, notes, bonds or other evidences of indebtedness
that may be issued from time to time hereunder (collectively, the “Securities”):

ARTICLE I

DEFINITIONS AND INCORPORATION BY REFERENCE

     SECTION 1.01 DEFINITIONS. For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:

     “AFFILIATE” of any specified person means 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” (including, with correlative meanings, the terms “controlled
by” and “under common control with”), when used with respect to any person, shall mean the
possession, directly or indirectly, of the power to direct or cause the direction of the management
or policies of such person, whether through the ownership of voting securities by agreement or
otherwise.

     “AGENT” means any Registrar, Paying Agent, Conversion Agent or co-Registrar.

     “BENEFICIAL HOLDER” shall mean each participant in the Depository who holds an interest in a
security, as indicated in the Participants List.

     “BOARD OF DIRECTORS” means the Board of Directors of the Company or any authorized committee
of the Board.

     “CAPITAL STOCK” means any and all shares, interests, participations or other equivalents
(however designated) of corporate stock.

     “CHANGE IN CONTROL” means as provided in Section 12.03.

     “COMMON STOCK” means Common Stock of the Company as it exists on the date of this Indenture or
as it may be constituted from time to time.

     “COMPANY” means the party named as such above until a successor replaces it in accordance with
Article V and thereafter means the successor.

     “CONVERSION AGENT” means the party named in Section 2.03.

1

 

     “CONVERSION DATE” means the date on which the Holder satisfies all the requirements of the
Securities for conversion into shares of Common Stock.

     “CORPORATE TRUST OFFICE” shall mean the principal office of the Trustee at which at any
particular time its corporate trust business shall be administered which office at the date of the
execution of this Indenture is located at 101 Barclay Street, Floor 4E, New York, NY 10286,
Attention: Corporate Trust Administration or at any other time at such other address as the
Trustee may from time to time by notice to the Company and Securityholders.

     “CURRENT MARKET PRICE” means (a) for purposes of Section 10.03 the last reported sales price
of the Common Stock (as reported by the New York Stock Exchange Composite Tape) on the last trading
day prior to the Conversion Date and (b) for purposes of Sections 10.07, 10.08 and 12.03, the
average of the last reported sales prices of the Common Stock (as reported by the New York Stock
Exchange Composite Tape) for 15 consecutive trading days commencing 25 trading days before the date
in question.

     “DEBT” means (i) all indebtedness of the Company for borrowed money, (ii) all indebtedness of
the Company which is evidenced by a note, debenture, bond or other similar instrument (including
capitalized lease and purchase money obligations), (iii) all indebtedness of the Company (including
capitalized lease obligations) incurred, assumed or given in the acquisition (whether by way of
purchase, merger or otherwise) of any business, real property or other assets (except assets
acquired in the ordinary course of the acquiror’s business).

     “DEFAULT” means any event which is, or after notice or passage of time would be, an Event of
Default.

     “DEFINITIVE SECURITY” means as provided in Section 2.01.

     “DEPOSITORY” means, with respect to the Global Security, the person specified in Section 2.03
as the Depository with respect to the Global Security, until a successor shall have been appointed
and become such pursuant to the applicable provisions of this Indenture, and, thereafter,
“Depository” shall mean or include such successor.

     “DESIGNATED EVENT” means as provided in Section 12.03.

     “DESIGNATED SENIOR DEBT” means all Senior Debt which, at the date of determination, has an
aggregate principal amount outstanding of, or commitments to lend up to, at least $10 million and
is specifically designated by the Company in the instrument evidencing or governing such Senior
Debt as “Designated Senior Debt” for purposes of this Indenture (provided, that such instrument may
place limitations and conditions on the right of such Senior Debt to exercise the rights of
Designated Senior Debt).

     “EVENT OF DEFAULT” means as provided in Section 6.01.

     “EXCHANGE ACT” means the Securities Exchange Act of 1934, as amended.

     “EXISTING DEBENTURES” means the Company’s 7 1/4% Convertible Subordinated Debentures due
October 31, 2005.

2

 

     “GLOBAL SECURITY” means as provided in Section 2.01.

     “HOLDER” or “SECURITYHOLDER” means a person in whose name a Security is registered on the
securities Register.

     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 deferrals, renewals, extensions, refinancings
and refundings of, or amendments, modifications or supplements to, any of the foregoing.

     “INDENTURE” means this Indenture as amended from time to time.

     “LEGAL HOLIDAY” means as provided in Section 13.07.

     “NASDAQ” means the National Association of Securities Dealers Automated Quotation System.

     “OFFICER” means Chairman of the Board, the President, any Vice President, the Treasurer, the
Secretary, any Assistant Treasurer or any Assistant Secretary of the Company.

     “OFFICERS’ CERTIFICATE” means a certificate signed by two Officers, one of whom must be the
Chairman of the Board, the President, the Treasurer or a Vice- President of the Company.

     “OPINION OF COUNSEL” means a written opinion from legal counsel which may be an employee of or
counsel to the Company or the Trustee.

     “PARTICIPANTS LIST” means the position listings showing persons that have a beneficial
interest in the Global Security held by the Depository and the amount of such interest, to the
extent it is made available to the Trustee.

     “PAYING AGENT” means the party named in Section 2.03.

     “PERSON” means any individual, corporation, partnership, joint venture, association, joint
stock company, trust, unincorporated organization or government or any agency or political
subdivision thereof.

     “PRINCIPAL” of a debt security means the principal of the security plus the premium, if any,
on the security.

     “REDEMPTION DATE” means the date on which Securities are redeemed by the Company pursuant to
Article III.

     “REDEMPTION PRICE” means the amount paid by the Company to redeem a Security, as determined in
paragraph 6 of the Securities.

3

 

     “REGISTRAR” means the party named in Section 2.03.

     “REPURCHASE DATE” means as provided in Section 12.01. 4

     “SEC” means the Securities and Exchange Commission.

     “SECURITIES” means the securities described above issued under this Indenture in the form of
Exhibits A and B hereto.

     “SECURITIES CUSTODIAN” means the Trustee, as custodian with respect to the Global Security or
any successor entity thereto.

     “SECURITIES REGISTER” means as provided in Section 2.03.

     “SENIOR DEBT” means the principal of, interest on, fees costs and expenses in connection with
and other amounts due on Debt of the Company, whether outstanding on the date of the Indenture or
thereafter created, incurred, assumed or guaranteed by the Company, unless, in the instrument
creating or evidencing or pursuant to which such Debt is outstanding, it is expressly provided that
such Debt is not senior in right of payment to the Securities. Senior Debt includes, with respect
to the obligations described above, interest accruing, pursuant to the terms of such Senior Debt,
on or after the filing of any petition in bankruptcy or for reorganization relating to the Company,
whether or not post-filing interest is allowed in such proceeding, at the rate specified in the
instrument governing the relevant obligation. Notwithstanding anything to the contrary in the
foregoing, Senior Debt shall not include: (a) Debt of or amounts owed by the Company for
compensation to employees, or for goods, services or materials purchased in the ordinary course of
business; (b) Debt of the Company to a Subsidiary of the Company; or (c) the Existing Debentures.

     “SIGNIFICANT SUBSIDIARY” means a “significant subsidiary” as defined in Rule 1-02 of
Regulation S-X under the Securities Act of 1933, as amended, and the Exchange Act (as such
Regulation is in effect on the date hereof) except that any subsidiary the common stock of which is
listed on a national securities exchange or authorized for quotation on the National Market System
of NASDAQ (at present or at any future relevant time) (a “Public Subsidiary”), and any subsidiary
of a Public Subsidiary, shall be deemed not to be a Significant Subsidiary.

     “SUBSIDIARY” of any specified person 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.

     “TIA” means the Trust Indenture Act of 1939 (15 U.S. Code ss. 77aaa-77bbbb) as amended and in
effect on the date of this Indenture or, if this Indenture is qualified under the TIA, from and
after the date of such qualification, the TIA as in effect at the date of such qualification.

4

 

     “TRUSTEE” means the party named as such above until a successor replaces it in accordance with
the applicable provisions of this Indenture and thereafter means the successor.

     “TRUST OFFICER” means, with respect to the Trustee, any officer assigned to the Corporate
Trust Office, including any managing director, vice president, assistant vice president, assistant
treasurer, assistant secretary or any other officer of the Trustee customarily performing functions
similar to those performed by any of the above designated officers and having direct responsibility
for the administration of this Indenture.

     “U.S. GOVERNMENT OBLIGATIONS” means direct obligations of the United States of America for the
payment of which the full faith and credit of the United States of America is pledged. U.S.
Government obligations shall not be callable at the issuer’s option.

     SECTION 1.02 INCORPORATION BY REFERENCE OF TRUST INDENTURE ACT. Whenever this Indenture
refers to a provision of the TIA, the provision is incorporated by reference in and made a part of
this Indenture.

     SECTION 1.03 RULES OF CONSTRUCTION. Unless the context otherwise requires:

          (a) the terms defined in this Article have the meanings assigned to them in this
Article and include the plural as well as the singular;

          (b) all other terms used herein which are defined in the TIA either directly or by
reference therein, have the meanings assigned to them therein;

          (c) all accounting terms not otherwise defined herein have the meanings assigned to
them in accordance with generally accepted accounting principles; and

          (d) the words “herein”, “hereof” and “hereunder” and other words of similar import
refer to this Indenture as a whole and not to any particular Article, Section or other
subdivision.

ARTICLE II

THE SECURITIES

     SECTION 2.01 FORM OF SECURITIES AND DATING. The Securities will initially be issued in global
form, substantially in the form of Exhibit A (the “Global Security”), which may be exchanged in
accordance with the provisions set forth herein for Securities in definitive form, substantially in
the form of Exhibit B (each, a “Definitive Security”). The Securities may have notations, legends
or endorsements required by law, stock exchange rule or usage. Each Security shall be dated the
date of its authentication.

     The terms and provisions contained in the Securities 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. The Global Security shall represent such of the outstanding

5

 

Securities as
shall be specified therein and shall provide that it shall represent the aggregate
amount of outstanding Securities from time to time endorsed thereon and that the aggregate
amount of outstanding Securities represented thereby may from time to time be reduced to reflect
exchanges. Any endorsement of the Global Security to reflect the amount of any increase or decrease
in the amount of outstanding securities represented thereby shall be made by the Trustee or the
Securities Custodian, at the direction of the Trustee, in such manner and upon instructions given
by the holder thereof.

     Payment of principal of and any interest on the Global Security or any Definitive Security
shall be made to the holder thereof as of the record date for such payment as specified in the form
of Global Security or Definitive Security, as the case may be.

     SECTION 2.02 EXECUTION AND AUTHENTICATION. The Securities shall be executed on behalf of the
Company by an officer, under its corporate seal reproduced thereon attested by its Secretary or one
of its Assistant Secretaries. The signature of these Officers on the securities may be manual or
facsimile.

     Securities bearing the manual or facsimile signatures of individuals who were at any time the
proper Officers of the Company shall bind the Company, notwithstanding that such individuals or any
of them have ceased to hold such offices prior to the authentication and delivery of such
Securities or did not hold such offices at the date of such Securities.

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

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

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

     SECTION 2.03 REGISTRAR, PAYING AGENT, CONVERSION AGENT, DEPOSITORY AND SECURITIES CUSTODIAN.
The Company shall maintain in such locations as it shall determine (a) an office or agency where
securities may be presented for registration of transfer or for exchange (“Registrar”), (b) an
office or agency where Securities may be presented for payment (“Paying Agent”), and (c) an office
or agency where securities may be presented for conversion (“Conversion Agent”). The Registrar
shall keep a register of the Securities and of their transfer and exchange (the “Securities
Register”). The Company may

6

 

appoint one or more co-Registrars, one or more additional paying agents
and one or more
additional conversion agents. The term “Paying Agent” includes any additional paying agent;
the term “Conversion Agent” includes any additional conversion agent. The Company may change any
Paying Agent, Registrar, Conversion Agent or co-Registrar without prior notice. The Company shall
notify the Trustee of the name and address of any Agent not a party to this Indenture. If the
Company fails to appoint or maintain another entity as Registrar, Paying Agent or Conversion Agent,
the Trustee shall act as such. The Company or any of its subsidiaries may act as Conversion Agent,
Paying Agent, Registrar or co-Registrar.

     The Company initially appoints The Depository Trust Company (“DTC”) to act as Depository with
respect to the Global Security. The Company initially appoints the Trustee as Conversion Agent,
Paying Agent, Registrar and authenticating agent. The Company initially appoints the Trustee to
act as Securities Custodian with respect to the Global Security.

     SECTION 2.04 PAYING AGENT TO HOLD MONEY IN TRUST. The Company shall require each Paying Agent
other than the Trustee to agree in writing that the Paying Agent will hold in trust for the benefit
of Securityholders or the Trustee all money held by the Paying Agent for the payment of principal
or interest on the Securities, and will notify the Trustee of any default by the Company in making
any such payment. While any such default continues, the Trustee may require a Paying Agent to pay
all money held by it to the Trustee. The Company at any time may require a Paying Agent to pay all
money held by it to the Trustee. Upon payment over to the Trustee, the Paying Agent (if other than
the Company or a subsidiary) shall have no further liability for the money. If the Company or a
subsidiary acts as Paying Agent, it shall segregate and hold in a separate trust fund for the
benefit of the Securityholders all money held by it as Paying Agent.

     SECTION 2.05 SECURITYHOLDER LISTS. The Trustee shall preserve in as current a form as is
reasonably practicable the most recent list available to it of the names and addresses of
Securityholders. If the Trustee is not the Registrar, the Company shall furnish to the Trustee on
or before each interest payment date and at such other times as the Trustee may request in writing
a list in such form and as of such date as the Trustee may reasonably require of the names and
addresses of Securityholders.

     SECTION 2.06 TRANSFER AND EXCHANGE. (a) The transfer and exchange of the Global Security
shall be effected through the Depository, in accordance with this Indenture (including the
restrictions on transfer set forth herein) and the procedures of the Depository therefor. When
Definitive Securities are presented to the Registrar or a co-Registrar with a request to register
the transfer of such Definitive Securities or to exchange such Definitive Securities for an equal
principal amount of Definitive Securities of other authorized denominations, the Registrar or
co-Registrar shall register the transfer or make the exchange as requested if its requirements for
such transaction are met; provided, HOWEVER, that the Definitive Securities surrendered for
transfer or exchange shall be duly endorsed or accompanied by a written instrument of transfer in
form satisfactory to the Company and the Registrar or co-Registrar, duly executed by the Holder
thereof or his attorney, duly authorized in writing.

     To permit the registration of transfers and exchanges, the Company shall execute and the
Trustee shall authenticate Definitive Securities at the Registrar’s or co-Registrar’s request. No

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service charge shall be made for any registration of transfer or exchange, but the Company may
require payment of a sum sufficient to cover any transfer tax or similar governmental charge
payable in connection therewith (other than any such transfer taxes or similar governmental charge
payable upon exchanges or transfers pursuant to Sections 2.10, 3.06, 9.05 or 10.02). The Registrar
or co-Registrar shall not be required to register the transfer of or exchange any Definitive
Security selected for redemption in whole or in part, except the unredeemed portion of any Security
being redeemed in part.

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

     (b) INTENTIONALLY OMITTED

     (c) Notwithstanding any other provisions (other than the provisions set forth in
Sections 2.06(d) and 2.06(e) of this Section), the Global Security may not be transferred
except as a whole by the Depository to a nominee of the Depository or by a nominee of the
Depository to the Depository or another nominee of the Depository or by the Depository or
any such nominee to a successor Depository or a nominee of such successor Depository.

     (d) If at any time the Depository for the Securities notifies the Company that it is
unwilling or unable to continue as Depository for the Securities, the Company shall appoint
a successor Depository with respect to the Securities. If a successor Depository for the
securities is not appointed by the Company within 90 days after the Company receives such
notice, the Company will execute, and the Trustee, upon receipt of an Officers’ Certificate
for the authentication and delivery of Definitive Securities, will authenticate and deliver
Definitive securities in fully registered form in an aggregate principal amount equal to the
principal amount of the Global Security in exchange for such Global Security.

     The Company may at any time and in its sole discretion determine that the Securities issued as
a Global Security shall no longer be represented by such Global Security. In such event the Company
will execute, and the Trustee, upon receipt of an Officers’ Certificate for the authentication and
delivery of Definitive Securities, will authenticate and deliver, Definitive Securities in an
aggregate principal amount equal to the principal amount of the Global Security in exchange for
such Global Security.

     If a Definitive Security is issued in exchange for any portion of the Global Security after
the close of business at the office or agency where such exchange occurs on any record date and
before the opening of business at such office or agency on the next succeeding interest payment
date, interest will not be payable on such interest payment date in respect of such Definitive
Security, but will be payable on such interest payment date only to the person to whom interest in
respect of such portion of the Global Security is payable in accordance with the provisions of this
Indenture.

     Definitive Securities issued in exchange for the Global Security pursuant to this Section 2.06
shall be registered in such names and in such authorized denominations as the

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Depository, pursuant
to instructions from its direct or indirect participants or otherwise, shall instruct the Trustee. The Trustee shall deliver such Definitive Securities to the persons in
whose names such Securities are so registered.

     (e) Any person having a beneficial interest in the Global Security may upon request
exchange its interest in the Global Security for a Definitive Security. Upon receipt by the
Trustee of written or electronic instructions from the Depository or its nominee on behalf
of any person having a beneficial interest in Securities and upon receipt by the Trustee of
a written order of the Depository or its nominee containing registration instructions, the
Trustee or the Securities Custodian, at the direction of the Trustee, will cause, in
accordance with the standing instructions and procedures existing between the Depository and
the Securities Custodian, the aggregate principal amount of the Global Security to be
reduced and, following such reduction, the Company will execute and, upon receipt of an
authentication order in the form of an Officers’ Certificate, the Trustee will authenticate
and deliver to such person or the transferee, as the case may be, a Definitive Security.

     (f) A holder of a Definitive Security may, upon satisfaction of the requirements set
forth below, exchange such Definitive Security for an interest in the Global Security. Upon
receipt by the Trustee of a Definitive Security, duly endorsed or accompanied by appropriate
instruments endorsed or accompanied by appropriate instruments of transfer, in form
satisfactory to the Trustee together with written instructions directing the Trustee to
make, or to direct the Securities Custodian to make, an endorsement on the Global Security
to reflect an increase in the aggregate principal amount of the Securities represented by
the Global Security, the Trustee shall cancel such Definitive Security and cause, or direct
the Securities Custodian to cause, in accordance with the standing instructions and
procedures existing between the Depository and the Securities Custodian, the aggregate
principal amount of Securities represented by the Global Security to be increased
accordingly.

     (g) At such time as all interests in the Global Security have either been exchanged for
Definitive Securities, redeemed, converted, repurchased or canceled, such Global Security
shall be canceled by the Trustee. At any time prior to such cancellation, if any interest in
the Global Security is exchanged for Definitive Securities, redeemed, converted, repurchased
or canceled, the principal amount of Securities represented by such Global Security shall be
reduced and an endorsement shall be made on such Global Security, by the Trustee or the
Securities Custodian, at the direction of the Trustee, to reflect such reduction.

     (h) The Company shall not be required (i) to issue, register the transfer of or
exchange Securities during a period beginning at the opening of business 15 days before the
day of any selection of Securities for redemption under Section 3.02 and ending at the close
of business on the day of selection, or (ii) to register the transfer or exchange of any
Security so selected for redemption in whole or in part, except the unredeemed portion of
any Security being redeemed in part.

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     SECTION 2.07 REPLACEMENT SECURITIES. If any mutilated Security is surrendered to the Trustee,
the Company shall execute and the Trustee shall authenticate and
deliver in exchange therefor a new Security of like tenor and principal amount and bearing a
number not contemporaneously outstanding.

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

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

     Upon the issuance of any new Security under this Section, the Company may require the payment
of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation
thereto and any other expenses (including the fees and expenses of the Trustee) connected
therewith. Every new security issued pursuant to this Section in lieu of any destroyed, lost or
stolen Security shall constitute an original additional contractual obligation of the Company,
whether or not the destroyed, lost or stolen Security shall be at any time enforceable by anyone,
and shall be entitled to all the benefits of this Indenture equally and proportionately with any
and all other Securities duly issued hereunder.

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

     SECTION 2.08 OUTSTANDING SECURITIES. The Securities outstanding at any time are all the
Securities authenticated by the Trustee except for those canceled by it, those delivered to it for
cancellation and those reductions in the interests in the Global Security effected by the Trustee
hereunder, and those described in this Section as not outstanding.

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

     If Securities are considered paid under Section 4.01, they cease to be outstanding and
interest on them ceases to accrue.

     A Security does not cease to be outstanding because the Company or an Affiliate of the Company
holds the Security.

     SECTION 2.09 TREASURY SECURITIES. In determining whether the Holders of the required
principal amount of Securities have concurred in any direction, waiver or consent, Securities owned
by the Company or an Affiliate of the Company shall be considered as though

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they are not
outstanding, except that for the purposes of determining whether the Trustee shall be
protected in relying on any such direction, waiver or consent, only Securities which any Trust
Officer knows are so owned shall be so disregarded.

     SECTION 2.10 TEMPORARY SECURITIES. Until the Global Security or Definitive Securities are
ready for delivery, the Company may prepare and the Trustee shall authenticate temporary
Securities. Temporary Securities shall be substantially in the form of the Global Security or
Definitive Securities, as the case may be, but may have variations that the Company considers
appropriate for temporary Securities. Without unreasonable delay, the Company shall prepare and the
Trustee shall authenticate the Global Security or Definitive Securities, as the case may be, in
exchange for temporary Securities.

     SECTION 2.11 CANCELLATION. The Company at any time may deliver Securities to the Trustee for
cancellation. The Registrar, Paying Agent and Conversion Agent shall forward to the Trustee any
Securities surrendered to them for registration of transfer, exchange, payment or conversion. The
Trustee shall cancel all Securities surrendered for registration of transfer, exchange, payment,
replacement, conversion or cancellation and shall dispose of cancelled Securities. The Company may
not issue new Securities to replace Securities that it has paid or that have been delivered to the
Trustee for cancellation or that any Securityholder has converted pursuant to Article X.

     SECTION 2.12 DEFAULTED INTEREST. If the Company fails to make a payment of interest on the
Securities, it shall pay such defaulted interest plus any interest payable on the defaulted
interest in any lawful manner. It may pay such defaulted interest, plus any such interest payable
on it, to the persons who are Securityholders on a subsequent special record date. The Company
shall fix any such record date and payment date. At least 15 days before any such record date, the
Company shall mail to Securityholders a notice that states the record date, payment date, and
amount of such interest to be paid.

ARTICLE III

REDEMPTION

     SECTION 3.01 NOTICES TO TRUSTEE. If the Company elects to redeem Securities pursuant to the
optional redemption provisions of paragraph 6 of the Securities, it shall notify the Trustee of the
Redemption Date and the principal amount of Securities to be redeemed.

     The Company shall give each notice provided for in this Section to the Trustee at least 40
days but not more than 60 days before the Redemption Date (unless a shorter notice period shall be
satisfactory to the Trustee).

     SECTION 3.02 SELECTION OF SECURITIES TO BE REDEEMED. If less than all the Securities are to
be redeemed, the Trustee shall select the Securities to be redeemed by lot or by a method that
complies with the requirements of any exchange on which the Securities are listed and that the
Trustee considers fair and appropriate. The Trustee may select for redemption portions of the
principal of Securities that have denominations larger than $1,000. Securities and portions of them
it selects shall be in amounts of $1,000 or integral multiples of $1,000. The

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Trustee shall notify the Company promptly of the Securities or portions of Securities to be
called for redemption.

     SECTION 3.03 NOTICE OF REDEMPTION. At least 30 days but not more than 60 days before a
Redemption Date, the Company shall mail a notice of redemption to each Holder whose Securities are
to be redeemed at the address of such Holder shown in the Security Register.

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

     (a) the Redemption Date;

     (b) the Redemption Price;

     (c) if any Security is being redeemed in part, the portion of the principal amount of
such Security to be redeemed and that, after the Redemption Date, upon surrender of such
Security, a new Security or securities in principal amount equal to the unredeemed portion
will be issued;

     (d) the conversion price, if applicable;

     (e) the name and address of the Paying Agent and Conversion Agent;

     (f) that Securities called for redemption may be converted, if applicable, at any time
before the close of business on the business day before the Redemption Date;

     (g) that Holders who want to convert Securities, if applicable, must satisfy the
requirements in paragraph 9 of the Securities;

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

     (i) that interest on Securities called for redemption ceases to accrue on and after the
Redemption Date; and

     (j) that Holders who convert, if applicable, after the date of the redemption notice
but before the Redemption Date will be entitled to receive accrued interest on their
converted Securities through the Redemption Date.

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

     SECTION 3.04 EFFECT OF NOTICE OF REDEMPTION. Once a notice of redemption is mailed,
Securities called for redemption become due and payable on the Redemption Date at the price set
forth in the Security.

     SECTION 3.05 DEPOSIT OF REDEMPTION PRICE. On or before the Redemption Date, the Company shall
deposit with the Trustee or with the Paying Agent money

12

 

sufficient to pay the Redemption Price of and accrued interest on all Securities to be
redeemed on that date. The Trustee or the Paying Agent shall return to the Company any money not
required for that purpose.

     SECTION 3.06 SECURITIES REDEEMED IN PART. Upon surrender of a Definitive Security that is
redeemed in part, the Company shall issue and the Trustee shall authenticate for the Holder at the
expense of the Company a new Definitive Security equal in principal amount to the unredeemed
portion of the Definitive Security surrendered.

ARTICLE IV

COVENANTS

     SECTION 4.01 PAYMENT OF SECURITIES. The Company shall pay the principal of and interest on
the Securities on the dates and in the manner provided in the Securities. Principal and interest
shall be considered paid on the date due if the Paying Agent (other than the Company or a
subsidiary) holds on that date money designated for and sufficient to pay all principal and
interest then due; PROVIDED, HOWEVER, that money held by the Paying Agent for the benefit of
holders of Senior Debt pursuant to the provisions of Article XI hereof shall not be considered paid
within the meaning of this Section 4.01.

     To the extent lawful, the Company shall pay interest semiannually (including post-petition
interest in any proceeding under any bankruptcy, insolvency or other similar law) on (a) overdue
principal, at the rate borne by the Securities and (b) overdue installments of interest (including
interest contemplated by clause (a) and without regard to any applicable grace period) at the same
rate.

     SECTION 4.02 SEC REPORTS. The Company shall deliver to the Trustee within 15 days after it
files them with the SEC copies of the annual reports and of the information, documents, and other
reports (or copies of such portions of any of the foregoing as the SEC may by rules and regulations
prescribe) which the Company is required to file with the SEC pursuant to Section 13 or 15(d) of
the Exchange Act. The Company also shall comply with the other provisions of TIA ss. 314(a). The
Company shall timely comply with its reporting and filing obligations under applicable federal
securities laws.

     SECTION 4.03 COMPLIANCE CERTIFICATE. The Company shall deliver to the Trustee, within 120
days after the end of each fiscal year of the Company, an Officers’ Certificate stating that a
review of the activities of the Company and its subsidiaries during the preceding fiscal year has
been made under the supervision of the signing Officers with a view to determining whether the
Company has kept, observed, performed and fulfilled its obligations under this Indenture, and
further stating, as to each such officer signing such certificate, that to the best of his
knowledge the Company has kept, observed, performed and fulfilled each and every covenant contained
in this Indenture and is not in default in the performance or observance of any of the terms,
provisions and conditions hereof (or, if a Default or Events of Default shall have occurred,
describing all such Defaults or Events of Default of which he may have knowledge) and that to the
best of his knowledge no event has occurred and remains in existence by reason of which payments on
account of the principal of or interest, if any, on the Securities are prohibited.

13

 

     The first certificate pursuant to this Section shall be for the fiscal year ending on December
31, 2008.

16

     The Company will, so long as any of the Securities are outstanding, deliver to the Trustee,
forthwith upon becoming aware of any Default or Event of Default, an Officers’ Certificate
specifying such Default or Event of Default.

     SECTION 4.04 STAY, EXTENSION AND USURY LAWS. The Company covenants (to the extent that it may
lawfully do so) that it will 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 wherever enacted, now or at
any time hereafter in force, which may affect the covenants or the performance of this Indenture;
and the Company (to the extent 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.

     SECTION 4.05 LIQUIDATION. The Company shall not adopt any plan of liquidation which provides
for, contemplates, or the effectuation of which is preceded by, (a) the sale, lease, conveyance or
other disposition of all or substantially all the assets of the Company otherwise than
substantially as an entirety in accordance with Article V and (b) the distribution of all or
substantially all the proceeds of such sale, lease, conveyance or other disposition and of the
remaining assets of the Company to holders of Common Stock of the Company, unless the Company shall
in connection with the adoption of such plan make provision for, or agree that prior to making any
liquidating distributions it will make provision for, the satisfaction of the Company’s obligations
hereunder and under the Securities as to the payment of principal and interest.

     SECTION 4.06 RESERVATION OF SHARES OF COMMON STOCK FOR ISSUANCE UPON CONVERSION. If
applicable, the Company will at all times cause there to be authorized and reserved for issuance
upon conversion of the Securities such number of shares of Common Stock as would be issuable upon
conversion of all the Securities then outstanding.

ARTICLE V

SUCCESSORS

     SECTION 5.01 WHEN COMPANY MAY MERGE, ETC. The Company shall not consolidate with or merge
into any other corporation or convey, transfer or lease its properties and assets substantially as
an entirety to any person, unless:

     (a) the corporation formed by such consolidation or into which the Company is merged or
the person which acquires by conveyance or transfer, or which leases, the properties and
assets of the Company substantially as an entirety shall be a corporation organized and
existing under the laws of the United States of America, any State thereof or the District
of Columbia and shall expressly assume, by an indenture supplemental hereto, executed and
delivered to the Trustee, in form satisfactory to the Trustee, the due

14

 

and punctual payment
of the principal of and interest on all the Securities and the
performance of every covenant of this Indenture on the part of the Company to be
performed or observed and, if applicable, shall have provided for conversion rights in
accordance with Section 10.17;

     (b) immediately after giving effect to such transaction, no Event of Default, and no
event which, after notice or lapse of time or both, would become an Event of Default, shall
have occurred and be continuing; and (c) the Company has delivered to the Trustee an
Officers’ Certificate and an opinion of Counsel, each stating that such consolidation,
merger, conveyance, transfer or lease and such supplemental indenture comply with this
Article and that all conditions precedent herein provided for relating to such transaction
have been complied with.

     SECTION 5.02 SUCCESSOR CORPORATION SUBSTITUTED. Upon any consolidation or merger, or any
sale, lease, conveyance or other disposition of all or substantially all of the assets of the
Company in accordance with Section 5.01, the successor corporation formed by such consolidation or
into or with which the Company is merged or to which such sale, lease, conveyance or other
disposition is made shall succeed to, and be substituted for, and may exercise every right and
power of, the Company under this Indenture with the same effect as if such successor person has
been named as the Company herein; PROVIDED, HOWEVER, that the predecessor Company in the case of a
sale, lease, conveyance or other disposition shall not be released from the obligation to pay the
principal of and interest on the Securities.

ARTICLE VI

DEFAULTS AND REMEDIES

     SECTION 6.01 EVENTS OF DEFAULT. An “Event of Default” occurs if:

     (a) the Company defaults in the payment of interest on any Security when the same
becomes due and payable and the Default continues for a period of 30 days;

     (b) the Company defaults in the payment of the principal of any Security when the same
becomes due and payable at maturity, upon redemption or otherwise;

     (c) the Company defaults in the payment of the repurchase price in respect of any
Security on the Repurchase Date therefor in accordance with the provisions of Article XII,
whether or not such payment is prohibited by the provisions of Article XI;

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

15

 

     (e) the Company defaults under any bond, debenture, note or other evidence of
indebtedness for money borrowed by the Company or under any mortgage, indenture
or instrument under which there may be issued or by which there may be secured or
evidenced any indebtedness for money borrowed by the Company, whether such indebtedness now
exists or shall hereafter be created, which default shall have resulted in $1,000,000 or
more of such indebtedness becoming or being declared due and payable prior to the date on
which it would otherwise have become due and payable, without such indebtedness having been
discharged, or acceleration having been rescinded or annulled, within a period of 10 days
after there shall have been given, by registered or certified mail, to the Company by the
Trustee or to the Company and the Trustee by the Holders of at least 25% in principal amount
of the then outstanding Securities a written notice specifying such default and requiring
the Company to cause such indebtedness to be discharged or cause such acceleration to be
rescinded or annulled and stating that such notice is a “Notice of Default” hereunder; or

     (f) the Company or any Significant 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, conservator, 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 of possession by any such official in an
involuntary case or other proceeding commenced against it or shall file an answer admitting
the material allegations against it in any such proceeding, or shall make a general
assignment for the benefit of creditors, or shall take any corporate action to authorize any
of the foregoing, or becomes unable or fails generally to pay its debts as they become due;
or an involuntary case or other proceeding shall be commenced against the Company or any
Significant Subsidiary seeking liquidation, reorganization or other relief with respect to
it or its debts under any bankruptcy, insolvency or other similar law now or thereafter in
effect or seeking the appointment of a trustee, receiver, conservator, 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
90 consecutive days.

     In the case of any Event of Default pursuant to the provisions of this Section 6.01
occurring by reason of any willful action (or inaction) taken (or not taken) by or on behalf
of the Company with the intention of avoiding payment of the premium which the Company would
have had to pay if the Company then had elected to redeem the Securities pursuant to
paragraph 6 of the Securities, an equivalent premium shall also become and be immediately
due and payable to the extent permitted by law, anything in this Indenture or in the
Securities contained to the contrary notwithstanding.

     SECTION 6.02 ACCELERATION. If an Event of Default (other than an Event of Default specified
in clause (f) of Section 6.01) occurs and is continuing, the Trustee by notice to the Company, or
the Holders of at least 25% in principal amount of the then outstanding Securities by notice to the
Company and the Trustee, may declare the unpaid principal of and accrued interest on all the
Securities to be due and payable. Upon such declaration the principal and interest shall be due and
payable immediately. If an Event of Default specified in clause (f) of

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Section 6.01 occurs, such an
amount shall ipso facto become and be immediately due and payable without any declaration or other
act on the part of the Trustee or any Holder. The
Holders of a majority in principal amount of the then outstanding Securities by notice to the
Trustee may rescind an acceleration and its consequences if the rescission would not conflict with
any judgment or decree and if all existing Events of Default have been cured or waived except
nonpayment of principal or interest that has become due solely because of the acceleration.

     SECTION 6.03 OTHER REMEDIES. If an Event of Default occurs and is continuing, the Trustee may
pursue any available remedy to collect the payment of principal or interest on the Securities or to
enforce the performance of any provision of the Securities or this Indenture.

     The Trustee may maintain a proceeding even if it does not possess any of the Securities or
does not produce any of them in the proceeding. A delay or omission by the Trustee or any
Securityholder in exercising any right or remedy accruing upon an Event of Default shall not impair
the right or remedy or constitute a waiver of or acquiescence in the Event of Default. All remedies
are cumulative to the extent permitted by law.

     SECTION 6.04 WAIVER OF PAST DEFAULTS. Subject to Section 9.02, the Holders of a majority in
principal amount of the then outstanding Securities by notice to the Trustee may waive an existing
Default or Event of Default and its consequences except a continuing Default or Event of Default in
the payment of the principal (other than principal due by reason of acceleration) of or interest on
any Security or a Default which materially and adversely affects the rights of any Holders under
Article X.

     SECTION 6.05 CONTROL BY MAJORITY. The Holders of a majority in principal amount of the then
outstanding Securities may direct the time, method and place of conducting any proceeding for any
remedy available to the Trustee or exercising any trust or power conferred on it. However, the
Trustee may refuse to follow any direction that conflicts with law or this Indenture, is unduly
prejudicial to the rights of other Securityholders, or would involve the Trustee in personal
liability.

     SECTION 6.06 LIMITATION ON SUITS. A Securityholder may pursue a remedy with respect to this
Indenture or the Securities only if:

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

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

     (c) such Holder or Holders offer to the Trustee indemnity satisfactory to the Trustee
against any loss, liability or expense;

     (d) the Trustee does not comply with the request within 60 days after receipt of the
request and the offer of indemnity; and (e) during such 60-day period the Holders of a
majority in principal amount of the then outstanding Securities do not give the Trustee a
direction inconsistent with the request.

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

     SECTION 6.07 RIGHTS OF HOLDERS TO RECEIVE PAYMENT. Notwithstanding any other provision of
this Indenture, the right of any Holder of a Security to receive payment of principal and interest
on the Security, on or after the respective due dates expressed in the Security, or to bring suit
for the enforcement of any such payment on or after such respective dates, shall not be impaired or
affected without the consent of the Holder.

     Notwithstanding any other provision of this Indenture, the right of any Holder of a Security
(a) if applicable, to bring suit for the enforcement of the right to convert the Security and (b)
to require the Company to repurchase the Security pursuant to Article XII, shall not be impaired or
affected without the consent of the Holder.

     SECTION 6.08 COLLECTION SUIT BY TRUSTEE. If an Event of Default specified in Section 6.01(a),
(b) or (c) occurs and is continuing, the Trustee may recover judgment in its own name and as
trustee of an express trust against the Company for the whole amount of principal and interest
remaining unpaid on the Securities and interest on overdue principal and interest and such further
amount as shall be sufficient to cover the costs and, to the extent lawful, expenses of collection,
including the reasonable compensation, expenses, disbursements and advances of the Trustee, its
agents and counsel.

     SECTION 6.09 TRUSTEE MAY FILE PROOFS OF CLAIM. The Trustee may file such proofs of claim and
other papers or documents as may be necessary or advisable in order to have the claims of the
Trustee and the Securityholders allowed in any judicial proceedings relative to the Company, its
creditors or its property. Nothing contained herein shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Securityholder any plan of
reorganization, arrangement, adjustment or composition affecting the Securities or the rights of
any Holder thereof, or to authorize the Trustee to vote in respect of the claim of any
Securityholder in any such proceeding.

     SECTION 6.10 PRIORITIES. If the Trustee collects any money pursuant to this Article, it shall
pay out the money in the following order:

	 	 	 	FIRST, to the Trustee for amounts due under Section 7.07;
	 
	 	 	 	SECOND, to holders of Senior Debt to the extent required by Article XI;
	 
	 	 	 	THIRD, to Securityholders for amounts due and unpaid on the Securities for
principal, and interest, ratably, without preference or priority of any kind,
according to the amounts due and payable on the Securities for principal, and
interest, respectively; and
	 
	 	 	 	FOURTH, to the Company.

     The Trustee may fix a record date and payment date for any payment to Securityholders other
than as provided for in Section 2.12.

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     SECTION 6.11 UNDERTAKING FOR COSTS. In any suit for the enforcement of any right or remedy
under this Indenture or in any suit against the Trustee for any action taken or omitted by it as a
Trustee, a court in its discretion may require the filing by any litigant in the suit of an
undertaking to pay the costs of the suit, and the court in its discretion may assess reasonable
costs, including reasonable attorneys’ fees, against any party litigant in the suit, having due
regard to the merits and good faith of the claims or defenses made by the party litigant. This
Section does not apply to a suit by the Trustee, a suit by a Holder pursuant to Section 6.07, or a
suit by Holders of more than 10% in principal amount of the then outstanding Securities.

ARTICLE VII

TRUSTEE

     SECTION 7.01 DUTIES OF TRUSTEE. (a) If an Event of Default has occurred and is
continuing, the Trustee shall exercise such of the rights and powers vested in it by this
Indenture, and use the same degree of care and skill in their exercise, as a prudent man would
exercise or use under the circumstances in the conduct of his own affairs.

     (b) Except during the continuance of an Event of Default:

     (i) the Trustee need perform only those duties that are specifically set forth
in this Indenture and no others; and

     (ii) in the absence of bad faith on its part, the Trustee may conclusively
rely, as to the truth of the statements and the correctness of the opinions
expressed therein, upon certificates or opinions furnished to the Trustee and
conforming to the requirements of this Indenture. However, the Trustee shall examine
the certificates and opinions to determine whether or not they conform to the
requirements of this Indenture; PROVIDED HOWEVER, that the Trustee is not required
to confirm the correctness of any mathematical computations.

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

     (i) this paragraph does not limit the effect of paragraph (b) of this Section;

     (ii) the Trustee shall not be liable for any error of judgment made in good
faith by a Trust Officer, unless it is proved that the Trustee was negligent in
ascertaining the pertinent facts; and (iii) the Trustee shall not be liable with
respect to any action it takes or omits to take in good faith in accordance with a
direction received by it pursuant to Section 6.05.

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

     (e) The Trustee may refuse to perform any duty or exercise any right or power unless it
receives indemnity satisfactory to it against any loss, liability or expense.

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

     SECTION 7.02 RIGHTS OF TRUSTEE. (a) The Trustee may rely on any document believed by it
to be genuine and to have been signed or presented by the proper person. The Trustee need not
investigate any fact or matter stated in the document.

     (b) Before the Trustee acts or refrains from acting, it may require an Officers’
Certificate or an Opinion of Counsel, or both. The Trustee shall not be liable for any
action it takes or omits to take in good faith in reliance on such Officers’ Certificate or
Opinion of Counsel.

     (c) The Trustee may act through agents, attorneys, custodians or nominees and shall not
be responsible for the misconduct or negligence of any agent, attorney, custodian or nominee
appointed with due care.

     (d) The Trustee shall not be liable for any action it takes or omits to take in good
faith which it believes to be authorized or within its rights or powers.

     SECTION 7.03 INDIVIDUAL RIGHTS OF TRUSTEE. The Trustee in its individual or any other
capacity may become the owner or pledgee of Securities and may otherwise deal with the Company or
an Affiliate with the same rights it would have if it were not Trustee. Any Agent may do the same
with like rights. However, the Trustee is subject to Sections 7.10 and 7.11.

     SECTION 7.04 TRUSTEE’S DISCLAIMER. The Trustee makes no representation as to the validity or
adequacy of this Indenture or the Securities, it shall not be accountable for the Company’s use of
the proceeds from the Securities, and it shall not be responsible for any statement of the Company
in the Indenture or any statement in the Securities other than its authentication.

     SECTION 7.05 NOTICE OF DEFAULTS. If a Default or Event of Default occurs and is continuing
and if it is known to the Trustee, the Trustee shall mail to Securityholders, at the name and
address which appears in the Securities Register a notice of the Default or Event of Default within
90 days after it occurs. Except in the case of a Default or Event of Default in payment on any
Security (including any failure to make any mandatory redemption payment required hereunder), the
Trustee may withhold the notice if and so long as a committee of its Trust Officers in good faith
determines that withholding the notice is in the interests of Securityholders.

     SECTION 7.06 REPORTS BY TRUSTEE TO HOLDERS. This Section 7.06 shall not be operative as part
of this Indenture until this Indenture is qualified under the TIA, and, until such qualification,
this Indenture shall be construed as if this Section 7.06 were not contained herein.

     Within 60 days after the reporting date (which shall be October 31 of each year), the Trustee
shall mail to each Securityholder, at the name and address which appears in the

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Securities Register a brief report dated as of such reporting date that complies with TIA ss.
313(a). The Trustee also shall comply with TIA ss. 313(b)(2). The Trustee shall also transmit by
mail all reports as required by TIA ss. 313(c).

     A copy of each report at the time of its mailing to Securityholders shall be filed with the
SEC and each stock exchange on which the Securities are listed. The Company shall notify the
Trustee when the Securities are listed on any stock exchange.

     SECTION 7.07 COMPENSATION AND INDEMNITY. The Company shall pay to the Trustee from time to
time reasonable compensation for its services hereunder. The Trustee’s compensation shall not be
limited by any law on compensation of a trustee of an express trust. The Company shall reimburse
the Trustee upon request for all reasonable out-of-pocket expenses incurred by it. Such expenses
may include the reasonable compensation and out-of-pocket expenses of the Trustee’s agents and
counsel.

     The Company shall indemnify the Trustee and its officers, directors, agents and employees
against any loss or liability incurred by it except as set forth in the next paragraph. The Trustee
shall notify the Company promptly of any claim for which it may seek indemnity. The Company shall
defend the claim and the Trustee shall cooperate in the defense. The Trustee may have separate
counsel and the Company shall pay the reasonable fees and expenses of such counsel. The Company
need not pay for any settlement made without its consent, which consent shall not be unreasonably
withheld.

     The Company need not reimburse any expense or indemnify against any loss or liability incurred
by the Trustee through negligence or bad faith.

     To secure the Company’s payment obligations in this Section, the Trustee shall have a lien
prior to the Securities on all money or property held or collected by the Trustee.

     When the Trustee incurs expenses or renders services after an Event of Default specified in
Section 6.01(f) occurs, the expenses and the compensation for the services are intended to
constitute expenses of administration under any bankruptcy, insolvency or other similar law.

     SECTION 7.08 REPLACEMENT OF TRUSTEE. A resignation or removal of the Trustee and appointment
of a successor Trustee shall become effective only upon the successor Trustee’s acceptance of
appointment as provided in this Section.

     The Trustee may resign by so notifying the Company. The Holders of a majority in principal
amount of the then outstanding securities may remove the Trustee by so notifying the Trustee and
the Company in writing. The Company may remove the Trustee if:

          (a) the Trustee fails to comply with Section 7.10; 24

          (b) the Trustee is adjudged a bankrupt or an insolvent or an order for relief is
entered with respect to the Trustee under any bankruptcy, insolvency or other similar law;

          (c) a receiver, trustee, liquidator or similar official takes charge of the Trustee or
its property; or

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          (d) the Trustee otherwise becomes incapable of acting.

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

     If a successor Trustee does not take office within 60 days after the retiring Trustee resigns
or is removed, the retiring Trustee, the Company or the Holders of at least 10% in principal amount
of the then outstanding Securities may petition any court of competent jurisdiction for the
appointment of a successor Trustee.

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

     A successor Trustee shall deliver a written acceptance of its appointment to the retiring
Trustee and to the Company. Thereupon the resignation or removal of the retiring Trustee shall
become effective, and the successor Trustee shall have all the rights, powers and duties of the
Trustee under this Indenture. The successor Trustee shall mail a notice of its succession to
Securityholders. The retiring Trustee shall promptly transfer all property held by it as Trustee to
the successor Trustee, subject to the lien provided for in Section 7.07. Notwithstanding the
replacement of the Trustee pursuant to this Section 7.08, the Company’s obligations under Section
7.07 hereof shall continue for the benefit of the retiring Trustee with respect to expenses and
liabilities incurred by it prior to such replacement.

     SECTION 7.09 SUCCESSOR TRUSTEE BY MERGER, ETC. If the Trustee consolidates, merges or
converts into, or transfers all or substantially all of its corporate trust business to, another
corporation, the successor corporation without any further act shall be the successor Trustee.

     SECTION 7.10 ELIGIBILITY; DISQUALIFICATION. This Indenture shall always have a Trustee who
satisfies the requirements of TIA ss. 310(a)(1). The Trustee shall always have a combined capital
and surplus of $50,000,000 as set forth in its most recent published annual report of condition.
The Trustee will at all times comply with, and when this Indenture is qualified under the TIA will
be subject to, TIA ss. 310(b), including the optional provision permitted by the second sentence of
TIA ss. 310(b)(9).

     SECTION 7.11 PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY. The Trustee is subject to TIA
ss. 311(a), excluding any creditor relationship listed in TIA ss. 311(b). A Trustee who has
resigned or been removed shall be subject to TIA ss. 311(a) to the extent indicated therein. In the
event that the Trustee is also serving as the Paying Agent or Registrar,
the rights, protections, immunities and indemnities granted to the Trustee hereunder shall be
afforded to the Paying Agent and Registrar.

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ARTICLE VIII

DISCHARGE OF INDENTURE

     SECTION 8.01 TERMINATION OF COMPANY’S OBLIGATIONS. This Indenture shall cease to be of
further effect (except that the Company’s obligations under Section 7.07 and 8.03 shall survive)
when all outstanding Securities theretofore authenticated and issued have been delivered to the
Trustee for cancellation and the Company has paid all sums payable hereunder. In addition, the
Company may terminate all of its obligations under this Indenture (except the Company’s obligations
under Sections 7.07 and 8.03) if:

     (a) the Securities mature within one year or all of them are to be called for
redemption within one year under arrangements satisfactory to the Trustee for giving the
notice of redemption; and

     (b) the Company irrevocably deposits in trust with the Trustee money or U.S. Government
Obligations sufficient to pay principal and interest on the Securities to maturity or
redemption, as the case may be, and to pay all other sums payable by it hereunder. The
Company may make the deposit only during the one- year period and only if Article XI permits
it.

However, the Company’s obligations in Sections 2.03, 2.04, 2.05, 2.06, 2.07, 4.01, 7.07, 8.03, 8.04
and in Article X, shall survive until the Securities are no longer outstanding. Thereafter, only
the Company’s obligations in Sections 7.07 and 8.03 shall survive.

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

     After a deposit made pursuant to this Section 8.01, the Trustee upon request shall acknowledge
in writing the discharge of the Company’s obligations under this Indenture except for those
surviving obligations specified above.

     SECTION 8.02 APPLICATION OF TRUST MONEY. The Trustee shall hold in trust money or U.S.
Government obligations deposited with it pursuant to Section 8.01. It shall apply the deposited
money and the money from U.S. Government Obligations through the Paying Agent and in accordance
with this Indenture to the payment of principal and interest on the Securities. Money and
securities so held in trust are not subject to Article XI.

     SECTION 8.03 REPAYMENT TO COMPANY. The Trustee and the Paying Agent shall promptly pay to the
Company upon request any excess money or securities held by them at any time.

     The Trustee and the Paying Agent shall pay to the Company upon request any money held by them
for the payment of principal or interest that remains unclaimed for two years after the date upon
which such payment shall have become due; PROVIDED, HOWEVER, that the
Company shall have first caused notice of such payment to the
Company to be mailed to each
Securityholder entitled thereto no less than 30 days prior to such payment. After payment to the

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Company, Securityholders entitled to the money must look to the Company for payment as general
creditors unless an applicable abandoned property law designates another person.

     SECTION 8.04 REINSTATEMENT. If (a) the Trustee or Paying Agent is unable to apply any money
in accordance with Section 8.02 by reason of any order or judgment of any court or governmental
authority enjoining, restraining or otherwise prohibiting such application and (b) the Holders of
at least a majority in principal amount of the then outstanding Securities so request by written
notice to the Trustee, the Company’s obligations under this Indenture and the Securities shall be
revived and reinstated as though no deposit had occurred pursuant to Section 8.01 until such time
as the Trustee or Paying Agent is permitted to apply all such money in accordance with Section
8.02; PROVIDED, HOWEVER, that if the Company makes any payment of principal or interest of any
Security following the reinstatement of its obligations, the Company shall be subrogated to the
rights of the Holders of such Securities to receive such payment from the money held by the Trustee
or Paying Agent.

ARTICLE IX

AMENDMENTS

     SECTION 9.01 WITHOUT CONSENT OF HOLDERS. The Company and the Trustee may amend this Indenture
or the securities without the consent of any Securityholder:

     (a) to cure any ambiguity, defect or inconsistency; or

     (b) to comply with Sections 5.01 and 10.17; or

     (c) to provide for uncertificated Securities in addition to certificated Securities; or

     (d) to make any change that does not materially adversely affect the legal rights
hereunder of any Securityholder; or

     (e) to comply with the TIA; PROVIDED, that, in the case of clauses (a) through (d)
above, inclusive, the Company has delivered to the Trustee an Opinion of Counsel stating
that such change does not adversely affect the rights of any Securityholder.

     SECTION 9.02 WITH CONSENT OF HOLDERS. Subject to Section 6.07, the Company and the Trustee
may amend this Indenture or the Securities with the written consent of the Holders of at least a
majority in principal amount of the then outstanding Securities. Subject to Sections 6.04 and 6.07,
the Holders of a majority in principal amount of the then outstanding Securities may also waive
compliance in a particular instance by the Company with any provision of this Indenture or the
Securities. However, without the consent of each Securityholder affected, an amendment or waiver
under this Section may not:

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

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     (b) reduce the rate of or change the time for payment of interest on any Security;

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

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

     (e) make any change in Section 6.04, 6.07 or 9.02 which adversely affects the rights of
the Securityholders;

     (f) if applicable, make any change that adversely affects the right to convert any
Security;

     (g) make any change in Article XI that adversely affects the rights of any
Securityholder; or

     (h) waive a default in the payment of the principal (except principal due by reason of
acceleration) of, or interest on, any Security or any Default which materially and adversely
affects the rights of any Securityholders under Article X.

     After an amendment or waiver under this Section becomes effective, the Company shall mail to
Securityholders a notice briefly describing the amendment or waiver.

     SECTION 9.03 COMPLIANCE WITH TRUST INDENTURE ACT. Every amendment to this Indenture or the
Securities shall be set forth in a supplemental indenture that complies with the TIA as then in
effect.

     SECTION 9.04 REVOCATION AND EFFECT OF CONSENTS. Until an amendment or waiver becomes
effective, a consent to it by a Holder of a Security is a continuing consent by the Holder and
every subsequent Holder of a Security or portion of a Security that evidences the same debt as the
consenting Holder’s Security, even if notation of the consent is not made on any Security. However,
any such Holder or subsequent Holder may revoke the consent as to his Security or portion of a
Security if the Trustee receives the notice of revocation before the date on which the Trustee
receives an Officer’s Certificate certifying that the Holders of the requisite principal amount of
securities have consented to the amendment or waiver.

     The Company may, but shall not be obligated to, fix a record date for the purpose of
determining the Holders entitled to consent to any amendment or waiver. If a record date is fixed,
then notwithstanding the provisions of the immediately preceding paragraph, those persons who were
Holders at such record date (or their duly designated proxies), and only those persons, shall be
entitled to consent to such amendment or waiver or to revoke any consent previously given, whether
or not such persons continue to be Holders after such record date. No consent shall be valid or
effective for more than 90 days after such record date unless consents from Holders of the
principal amount of securities required hereunder for such amendment or waiver to be effective
shall have also been given and not revoked within such 90-day period.

25

 

     After an amendment or waiver becomes effective it shall bind every Securityholder, unless it
is of the type described in any of clauses (a) through (h) of Section 9.02. In such case, the
amendment or waiver shall bind each Holder of a Security who has consented to it and every
subsequent Holder of a Security that evidences the same debt as the consenting Holder’s Security.

     SECTION 9.05 NOTATION ON OR EXCHANGE OF SECURITIES. The Trustee may place an appropriate
notation about an amendment or waiver on any Security thereafter authenticated. The Company in
exchange for all Securities may issue and the Trustee shall authenticate new Securities that
reflect the amendment or waiver.

     SECTION 9.06 TRUSTEE PROTECTED. The Trustee shall sign all supplemental indentures, except
that the Trustee need not sign any supplemental indenture that adversely affects its rights.

ARTICLE X

CONVERSION

     SECTION 10.01 CONVERSION PRIVILEGE. If the Securities are convertible into shares of Common
Stock, a Holder of a Security may convert it into Common Stock at any time during the period stated
in paragraph 9 of the Securities and this Article X shall be applicable. The number of shares
issuable upon conversion of a Security is determined as follows: divide the principal amount to be
converted by the conversion price in effect on the Conversion Date. Round the result to the nearest
1/100th of a share.

     The initial conversion price is stated in paragraph 9 of the Securities. The conversion price
is subject to adjustment.

     A Holder may convert a portion of a Security if the portion is $1,000 or an integral multiple
of $1,000. Provisions of this Indenture that apply to conversion of all of a Security also apply to
conversion of a portion of it.

     SECTION 10.02 CONVERSION PROCEDURE. To convert a Security, a Holder must satisfy the
requirements in paragraph 9 of the Securities. As soon as practical, the Company shall deliver
through the Conversion Agent a certificate for the number of full shares of Common Stock issuable
upon the conversion together with payment in lieu of any fractional share. The person in whose name
the certificate is registered shall be treated as a stockholder of record on and after the
Conversion Date.

     No payment or adjustment will be made on conversion of any Security for interest accrued
thereon or dividends on any Common Stock issued and the Holder will lose any right to payment of
interest on the Securities surrendered for conversion; PROVIDED, HOWEVER, that upon a call for
redemption by the Company, accrued and unpaid interest to the Redemption Date shall be payable with
respect to Securities that are converted after a redemption notice has been mailed pursuant to
Section 3.03 and on or prior to the Redemption Date. Securities surrendered for conversion during
the period from the regular record date for an interest payment to the corresponding interest
payment date (except Securities called for redemption as described in the

26

 

preceding sentence) must be accompanied by payment of an amount equal to the interest thereon
which the Holder is to receive on such interest payment date.

     If a Holder converts more than one Security at the same time, the number of full shares
issuable upon the conversion shall be based on the total principal amount of the Securities
surrendered.

     Upon a surrender of a Definitive Security that is converted in part, the Company shall issue
and the Trustee shall authenticate for the Holder a new Definitive Security equal in principal
amount to the unconverted portion of the Security surrendered.

     If the last day on which a Security may be converted is a Legal Holiday in a place where a
Conversion Agent is located, the Security may be surrendered to that Conversion Agent on the next
succeeding day that is not a Legal Holiday.

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

     SECTION 10.03 FRACTIONAL SHARES. The Company will not issue a fractional share of Common
Stock upon conversion of a Security. Instead the Company will deliver payment in lieu thereof for
the current market value of the fractional share. The current market value of a fraction of a share
is determined as follows: multiply the Current Market Price of a full share by the fraction. Round
the result to the nearest cent.

     SECTION 10.04 TAXES ON CONVERSION. The Company will pay any and all taxes that may be payable
in respect of the issue or delivery of shares of Common Stock on conversion of Securities pursuant
hereto. The Company shall not, however, be required to pay any tax which may be payable in respect
of any transfer involved in the issue and delivery of shares of Common Stock in a name other than
that of the Holder of the Security or Securities to be converted, and no such issue or delivery
shall be made unless and until the person requesting such issue has paid to the Company the amount
of any such tax, or has established to the satisfaction of the Company that such tax has been paid.

     SECTION 10.05 COMPANY TO PROVIDE STOCK. The Company has reserved and shall continue to
reserve out of its authorized but unissued Common Stock or its Common Stock held in treasury enough
shares of Common Stock to permit the conversion of the Securities in full.

     All shares of Common Stock which may be issued upon conversion of the Securities shall be
fully paid and non assessable.

     The Company will comply with all securities laws regulating the offer and delivery of shares
of Common Stock upon conversion of Securities and will use its best efforts to list such shares on
each national securities exchange on which the Common Stock is listed.

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     SECTION 10.06 ADJUSTMENT FOR DIVIDENDS AND DISTRIBUTIONS OF COMMON STOCK. In case the Company
shall pay or make a dividend or other distribution on
any class of Capital Stock of the Company in Common Stock, the conversion price in effect at
the opening of business on the day following the 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 the date fixed for such determination 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, such reduction to become effective
immediately after the opening of business on the day following the date fixed for such
determination. For the purposes of this Section 10.06, the number of shares of Common Stock at any
time outstanding shall not include shares held in the treasury of the Company but shall include
shares issuable in respect of scrip certificates issued in lieu of fractions of shares of Common
Stock. The Company will not pay any dividend or make any distribution on shares of Common Stock
held in the treasury of the Company.

     SECTION 10.07 ADJUSTMENT FOR RIGHTS ISSUE. In case the Company shall issue rights or warrants
to all holders of its Common Stock entitling them to subscribe for or purchase shares of Common
Stock at a price per share less than the Current Market Price per share of the Common Stock on the
date fixed for the determination of stockholders entitled to receive such rights or warrants, the
conversion price in effect at the opening of business on the day following the date fixed for such
determination shall be reduced by multiplying such conversion price by a fraction of which the
numerator shall be the number of shares of Common Stock outstanding at the close of business on the
date fixed for such determination plus the number of shares of Common Stock which the aggregate of
the offering price of the total number of shares of Common Stock so offered for subscription or
purchase would purchase at such Current Market Price and the denominator shall be the number of
shares of Common Stock outstanding at the close of business on the date fixed for such
determination plus the number of shares of Common Stock so offered for subscription or purchase,
such reduction to become effective immediately after the opening of business on the day following
the date fixed for such determination. For the purposes of this Section 10.07, the number of shares
of Common Stock at any time outstanding shall not include shares held in the treasury of the
Company but shall include shares issuable in respect of scrip certificates issued in lieu of
fractions of shares of Common Stock. The Company will not issue any rights or warrants in respect
of shares of Common Stock held in the treasury of the Company.

     SECTION 10.08 ADJUSTMENT FOR OTHER DISTRIBUTIONS. In case the Company shall, by dividend or
otherwise, distribute to all holders of its Common Stock evidences of its indebtedness or assets
(including securities, but excluding any rights or warrants referred to in Section 10.07, any
dividend or distribution paid in cash out of the earned surplus of the Company and any dividend or
distribution referred to in Section 10.06), the conversion price shall be adjusted so that the same
shall equal the price determined by multiplying the conversion price in effect immediately prior to
the close of business on the date fixed for the determination of stockholders entitled to receive
such distribution by a fraction of which the numerator shall be the Current Market Price per share
of the Common Stock on the date fixed for such determination less the then fair market value (as
determined by the Board of Directors, whose

28

 

determination shall be conclusive and contained in a
Board Resolution filed with the Trustee) of the portion of the assets or evidences of indebtedness
so distributed applicable to one share of Common Stock and the denominator shall be such Current
Market Price per share of the
Common Stock, such adjustment to become effective immediately prior to the opening of business
on the day following the date fixed for the determination of stockholders entitled to receive such
distribution.

     SECTION 10.09 ADJUSTMENT FOR SUBDIVISION OF COMMON STOCK. In case outstanding shares of
Common Stock shall be subdivided into a greater number of shares of Common Stock, the conversion
price in effect at the opening of business on the day following the day upon which such subdivision
becomes effective shall be proportionately reduced, and, conversely, in case outstanding shares of
Common Stock shall each be combined into a smaller number of shares of Common Stock, the conversion
price in effect at the opening of business on the day following the day upon which such combination
becomes effective shall be proportionately increased, such reduction or increase, as the case may
be, to become effective immediately after the opening of business on the day following the day upon
which such subdivision or combination becomes effective.

     SECTION 10.10 ADJUSTMENT FOR RECLASSIFICATION OF COMMON STOCK. The reclassification of Common
Stock into securities including other than Common Stock shall be deemed to involve (a) a
distribution of such securities other than Common Stock to all holders of Common Stock (and the
effective date of such reclassification shall be deemed to be “the date fixed for the determination
of stockholders entitled to receive such distribution” and “the date fixed for such determination”
within the meaning of Section 10.08) and (b) a subdivision or combination, as the case may be, of
the number of shares of Common Stock outstanding immediately prior to such reclassification into
the number of shares of Common Stock outstanding immediately thereafter (and the effective date of
such reclassification shall be deemed to be “the day upon which such subdivision becomes effective”
or “the day upon which such combination becomes effective”, as the case may be, and “the day upon
which such subdivision or combination becomes effective” within the meaning of Section 10.09.

     SECTION 10.11 [INTENTIONALLY OMITTED]

     SECTION 10.12 WHEN ADJUSTMENT MAY BE DEFERRED. No adjustment in the conversion price need be
made for a transaction referred to in Sections 10.06, 10.07, 10.08, 10.09 or 10.10 unless the
adjustment would require an increase or decrease of at least 1% in the conversion price. Any
adjustments that are not made shall be carried forward and taken into account in any subsequent
adjustment.

     All calculations under this Article shall be made to the nearest cent or to the nearest
1/100th of a share, as the case may be.

     SECTION 10.13 WHEN NO ADJUSTMENT REQUIRED. No adjustment need be made for a transaction
referred to in Sections 10.06, 10.07, 10.08, 10.09 or 10.10 if all Securityholders are entitled to
participate in the transaction on a basis and with notice that the

29

 

Board of Directors determines to
be fair and appropriate in light of the basis and notice on which holders of Common Stock
participate in the transaction.

     No adjustment need be made for rights to purchase Common Stock or issuance of Common Stock
pursuant to a Company plan for reinvestment of dividends or interest.

     No adjustment need be made for a change in the par value or no par value of the Common Stock.

     To the extent the Securities become convertible into cash, no adjustment need be made
thereafter as to the cash. Interest will not accrue on the cash.

     SECTION 10.14 NOTICE OF ADJUSTMENT. Whenever the conversion price is adjusted, the Company
shall promptly mail to Securityholders and the Trustee a notice of the adjustment. The Company
shall file with the Trustee a certificate from the Company’s independent public accountants briefly
stating the facts requiring the adjustment and the manner of computing it. The certificate shall be
conclusive evidence that the adjustment is correct.

     SECTION 10.15 VOLUNTARY REDUCTION. 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 20 days or such longer period
as may be required by law and if the reduction is irrevocable during the period, provided, that in
no event may the conversion price be less than the par value of a share of Common Stock.

     Whenever the conversion price is reduced, the Company shall mail to Securityholders and the
Trustee a notice of the reduction and comply with Rule 13e-4 promulgated by the SEC under the
Exchange Act, if such rule is applicable and any other applicable rules and regulations of the SEC.
The notice shall state the reduced conversion price and the period it will be in effect.

     A reduction of the conversion price does not change or adjust the conversion price otherwise
in effect for purposes of Sections 10.06, 10.07, 10.08, 10.09 and 10.10.

     SECTION 10.16 NOTICE OF CERTAIN TRANSACTIONS.

If:

     (a) the Company takes any action that would require an adjustment in the conversion
price pursuant to Sections 10.06, 10.07, 10.08, 10.09 or 10.10 and if the Company does not
let Securityholders participate pursuant to Section 10.13;

     (b) the Company takes any action that would require a supplemental indenture pursuant
to Section 10.17; or

     (c) there is a liquidation or dissolution of the Company, the Company shall mail to
Securityholders and the Trustee a notice stating the proposed record date for a dividend or
distribution or the proposed effective date of a subdivision, combination, reclassification,
consolidation, merger, transfer, lease, liquidation or dissolution. The

30

 

Company shall mail
such notice at least 15 days before such date. Failure to mail such notice or any defect in
it shall not affect the validity of the transaction.

     SECTION 10.17 REORGANIZATION OF COMPANY. If the Company is a party to a transaction subject
to Section 5.01, or a merger which reclassifies or changes its outstanding Common Stock, upon
consummation of such transaction the Securities shall automatically become convertible into the
kind and amount of securities, cash or other assets which the Holder
of a Security would have owned immediately after the consolidation, merger, transfer or lease
if the Holder had converted the Security at the conversion price in effect immediately before the
effective date of the transaction. Concurrently with the consummation of such transaction, the
person obligated to issue securities or deliver cash or other assets upon conversion of the
Securities shall enter into a supplemental indenture so providing and further providing for
adjustments which shall be as nearly equivalent as may be practical to the adjustments provided for
in this Article. The successor Company shall mail to Securityholders a notice describing the
supplemental indenture.

     If securities deliverable upon conversion of the securities, as provided above, are themselves
convertible into the securities of an Affiliate of the formed, surviving, transferee or lessee
corporation, that issuer shall join in the supplemental indenture which shall so provide.

     If this Section applies, Section 10.06 does not apply.

     SECTION 10.18 COMPANY DETERMINATION FINAL. Any determination that the Company or the Board of
Directors must make pursuant to Section 10.03, 10.08, or 10.13 is conclusive.

     SECTION 10.19 TRUSTEE’S DISCLAIMER. The Trustee has no duty to determine when an adjustment
under this Article should be made, how it should be made or what it should be. The Trustee has no
duty to determine whether any provisions of a supplemental indenture under Section 10.17 are
correct. The Trustee makes no representation as to the validity or value of any securities or
assets issued upon conversion of the Securities. The Trustee shall not be responsible for the
Company’s failure to comply with this Article. Each Conversion Agent other than the Company shall
have the same protection under this Section as the Trustee.

ARTICLE XI

SUBORDINATION OF SECURITIES

     SECTION 11.01 SECURITIES SUBORDINATE TO SENIOR DEBT. The Company, for itself, its successors
and assigns, covenants and agrees, and each Holder of the Securities, by his acceptance thereof
likewise covenants and agrees that all Securities issued hereunder shall be subordinated and
subject, to the extent and in the manner herein set forth, in right of payment to the prior payment
in full of all Senior Debt and will not be superior in payment to the Existing Debentures.

     SECTION 11.02 NO PAYMENTS WHEN SENIOR DEBT IN DEFAULT; PAYMENT OVER OF PROCEEDS UPON
DISSOLUTION, ETC. In the event the Company shall default in the payment on any Senior Debt when
the same becomes due and payable,

31

 

whether at maturity or at a date fixed for prepayment or by
declaration or otherwise, then, unless and until such default shall have been cured or waived or
shall have ceased to exist, no direct or indirect payment (in cash, property, securities, by setoff
or otherwise) shall be made or agreed to be made on account of the principal of or interest on the
Securities, or in respect of any redemption, retirement, purchase or other acquisition (except, if
applicable, through the conversion thereof) of any of the Securities.

     Upon the happening of an event of default with respect to any Senior Debt, as defined therein
or in the instrument under which the same is outstanding, permitting the holders thereof to
accelerate the maturity thereof (under circumstances when the terms of the preceding paragraph are
not applicable), unless and until such event of default shall have been cured or waived or shall
have ceased to exist, no direct or indirect payment (in cash, property, securities, by setoff or
otherwise) shall be made or agreed to be made on account of the principal of or interest on the
Securities, or in respect of any redemption, retirement, purchase or other acquisition (except, if
applicable, through the conversion thereof) of any of the Securities.

     In the event of:

     (a) any insolvency, bankruptcy, receivership, liquidation, reorganization,
readjustment, composition or other similar proceeding relating to the Company or its
property, or any of the Company’s subsidiaries that are guarantors under Designated Senior
Debt,

     (b) any assignment by the Company for the benefit of creditors, or

     (c) any other marshalling of the assets of the Company, all Senior Debt (including any
interest thereon accruing after the commencement of any such proceedings) shall first be
paid in full before any payment or distribution (direct or indirect), whether in cash,
property or securities, by setoff or otherwise, shall be made to any Holder on account of
any Securities, and to that end any payment or distribution, whether in cash, property or
securities (other than securities of the Company or any other corporation provided for by a
plan of reorganization or readjustment the payment of which is subordinate, at least to the
extent provided in this Article with respect to the Securities, to the payment of all Senior
Debt at the time outstanding and to any securities issued in respect thereof under any such
plan of reorganization or readjustment) which would otherwise (but for the subordination
provisions contained in this Article) be payable or deliverable in respect of the Securities
shall be paid or delivered directly to the holders of Senior Debt, as their respective
interests may appear, until all Senior Debt (including any interest thereon accruing after
the commencement of any such proceedings) shall have been paid in full.

     If the Securities are declared due and payable before their stated maturity because of the
occurrence of an Event of Default (under circumstances where the preceding paragraph is not
applicable), no payment (direct or indirect) shall be made in respect of any securities unless and
until all Senior Debt has been paid in full or such declaration and its consequence shall have been
rescinded and all such defaults shall have been remedied or waived.

32

 

     If any payment or distribution (other than securities of the Company or any other corporation
provided for by a plan of reorganization or readjustment the payment of which is subordinate, at
least to the extent provided in this Article with respect to the Securities, to the payment of all
Senior Debt at the time outstanding and to any securities issued in respect thereof under any such
plan of reorganization or readjustment) shall be received by the Trustee or the Holders in
contravention of any of the terms of this Article and before all the Senior Debt has been paid in
full, such payment or distribution shall be held in trust for the benefit of, and shall
be paid over or delivered and transferred to, the holders of such Senior Debt at the time
outstanding as their respective interests may appear for application to the payment of Senior Debt
until all Senior Debt (including any interest thereon accruing after the commencement of any such
proceeding referred to in paragraph (a), (b) or (c) above) shall have been paid in full. If the
Trustee or any such Holder fails to endorse or assign any such payment or distribution as required
by this Section, the Trustee and the Holder of each Security by his acceptance thereof authorizes
each holder of Senior Debt, any representative or representatives of holders of Senior Debt and the
trustee or trustees under any indenture pursuant to which any instrument evidencing such Senior
Debt may have been issued to so endorse or assign the same.

     No holder of Senior Debt shall be prejudiced in the right to enforce subordination of the
Securities by any act or failure to act on the part of the Company.

     Subject to the payment in full of all Senior Debt, the Holders shall be subrogated (equally
and ratably with the holders of all indebtedness of the Company which ranks on a parity with the
Securities and is entitled to like rights of subrogation) to the rights of the holders of Senior
Debt to receive payments or distributions applicable to the Senior Debt until the Securities shall
be paid in full, and no such payments or distributions shall, as between the Company, its creditors
other than the holders of Senior Debt, and the Holders of the Securities, be deemed to be a payment
by the Company to or on account of the Securities. The provisions of this Article are and are
intended solely for the purposes of defining the relative rights of the Holders of the Securities,
on the one hand, and the holders of Senior Debt, on the other hand, and nothing contained in this
Article or elsewhere in this Indenture or in the Securities is intended to or shall impair, as
between the Company, its creditors other than the holders of Senior Debt and the Holders of the
Securities, the obligation of the Company to pay the Holders the principal of and interest on the
Securities as and when the same shall become due and payable in accordance with the terms thereof,
or prevent the Trustee or the Holders from exercising all rights, powers and remedies otherwise
permitted by applicable law or under this Indenture, upon a default or Event of Default hereunder,
all subject to the rights of the holders of the Senior Debt to receive cash, property or securities
otherwise payable or deliverable to the Trustee or the Holders.

     Upon any payment or distribution pursuant to this Section, the Trustee shall be entitled to
rely upon any order or decree of a court of competent jurisdiction in which any proceedings of the
nature referred to in this Section, are pending, and the Trustee, subject as between the Trustee
and the Holders to the provisions of Section 7.01, shall be entitled to rely upon a certificate of
the liquidating trustee or agent or other person making such payment or distribution to the Trustee
or to the Holders for the purpose of ascertaining the persons entitled to participate in such
payment or distribution, the holders of the Senior Debt 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 Section. In the event that the Trustee determines, in good

33

 

faith, that evidence is required with respect to the right of any person as a holder of Senior Debt
to participate in any payment or distribution pursuant to this Section, the Trustee may request
such person to furnish evidence to the reasonable satisfaction of the Trustee as to the amount of
Senior Debt held by such person, as to the extent to which such person is entitled to participate
in such payment or distribution, and as to other facts pertinent to the rights of such person under
this Section, 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 11.03 TRUSTEE TO EFFECTUATE SUBORDINATION. The Holder of each Security by his
acceptance thereof authorizes and directs the Trustee in his behalf to take such action as may be
necessary or appropriate to acknowledge or effectuate the subordination as provided in this Article
and appoints the Trustee as attorney-in-fact for any and all such purposes.

     SECTION 11.04 TRUSTEE NOT CHARGED WITH KNOWLEDGE OF PROHIBITION. Notwithstanding the
provisions of this Article or any other provision of this Indenture, but subject as between the
Trustee and the Holders to the provisions of Section 7.01, the Trustee shall not be charged with
knowledge of the existence of any Senior Debt, or of any default in the payment of any Senior Debt,
or of any facts which would prohibit the making of any payment of moneys to or by the Trustee,
unless and until three business days after the Trustee shall have received written notice thereof
from the Company or any holder of Senior Debt or the representative or representatives of such
holder; nor shall the Trustee be charged with knowledge of the curing of any such default or of the
elimination of the act or condition preventing any such payment unless and until the Trustee shall
have received an Officers’ Certificate to such effect. The provisions of this Section shall not
limit any rights of holders of Senior Debt under this Article XI to recover from the Holders of
Securities any payment made to any such Holder.

     SECTION 11.05 RIGHTS OF TRUSTEE AS HOLDER OF SENIOR DEBT. The Trustee shall be entitled to
all the rights set forth in this Article with respect to any Senior Debt which may at any time be
held by it, to the same extent as any other holder of Senior Debt, and nothing in Section 7.11, or
elsewhere in this Indenture, shall deprive the Trustee of any of its rights as such holder.

     SECTION 11.06 ARTICLE APPLICABLE TO PAYING AGENT. In case at any time any Paying Agent other
than the Trustee shall have been appointed by the Company and be then acting hereunder, the term
“Trustee” as used in this Article shall in such case (unless the context shall otherwise require)
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 Sections 11.04 and 11.05 shall not apply to the Company or
any Affiliate of the Company if the Company or such Affiliate acts as Paying Agent.

34

 

ARTICLE XII

RIGHT TO REQUIRE REPURCHASE

     SECTION 12.01 RIGHT TO REQUIRE REPURCHASE. In the event that there shall occur a Designated
Event with respect to the Company, then each Securityholder shall have the right, at such
Securityholder’s option, but subject to the provisions of Article XI and this Article XII to
require the Company to purchase, and upon exercise of such right the Company shall purchase, all or
any part of such Securityholder’s Securities in principal amount of $1,000 or an integral multiple
thereof on the date (the “Repurchase Date”) that is 45 days after the date of the Company Notice,
at 100% of the principal amount, together with accrued interest to the Repurchase Date.

     SECTION 12.02 NOTICE; METHOD OF EXERCISING REPURCHASE RIGHT. (a) On or before the 30th
day after the occurrence of a Designated Event, the Company, or at the request of the Company, the
Trustee, shall give notice of the occurrence of the Designated Event and of the repurchase right
set forth herein arising as a result thereof (the “Company Notice”) by first-class mail, postage
pre-paid, to each Holder and each Beneficial Holder of the Securities at such Holder’s or
Beneficial Holder’s address appearing in the Securities Register or Participants List. The Company
shall also deliver a copy of such Company Notice to the Trustee and cause a copy of such Company
Notice to be published in a newspaper of general circulation in the Borough of Manhattan, The City
of New York.

     Each Company Notice shall state:

     (i) the Repurchase Date,

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

     (iii) the price at which the repurchase is to be made, if the repurchase right
is exercised, and

     (iv) a description of the procedure which a Securityholder must follow to
exercise a repurchase right.

     No failure of the Company to give the foregoing notice shall limit any Securityholder’s right
to exercise a repurchase right.

     (b) To exercise a repurchase right, a Securityholder shall deliver to the Company (or
an agent designated by the Company for such purpose in the Company Notice), on or before the
30th day after the date of the Company Notice, (i) written notice of the Securityholder’s
exercise of such right, which notice shall set forth the name of the Securityholder, the
principal amount of the Security or Securities (or portion of a Security) to be repurchased,
and a statement that an election to exercise the repurchase right is being made thereby, and
(ii) the Security or Securities with respect to which the repurchase right is being
exercised, duly endorsed for transfer to the Company. Such written notice shall be
irrevocable. If the Repurchase Date falls between any record date for the payment of
interest on the Securities and the next succeeding interest payment date, Securities to be
repurchased must be accompanied by payment of an amount equal

35

 

to the interest thereon which
the registered Holder thereof is to receive on such interest payment date.

     (c) In the event a repurchase right shall be exercised in accordance with the terms
hereof, the Company shall pay or cause to be paid the price payable with respect to the
Security or Securities as to which the repurchase right has been exercised in cash to the
Securityholder on the Repurchase Date. In the event that a repurchase right is exercised
with respect to less than the entire principal amount of a surrendered Security, the Company
shall execute and deliver to the Trustee and the Trustee shall authenticate for issuance in
the name of the Securityholder a replacement Security or Securities in the aggregate
principal amount of the unrepurchased portion of such surrendered Security.

     SECTION 12.03 CERTAIN DEFINITIONS. For purposes of Sections 12.01 and 12.02:

     (a) A “Designated Event” shall be deemed to have occurred on the date of consummation
of the purchase, merger or other acquisition transaction as referred to in the definition of
a Change in Control.

     (b) As used herein, a “Change in Control” of the Company shall be deemed to have
occurred when (i) all or substantially all of the Company’s assets are sold as an entirety
to any person or related group of persons; (ii) there shall be consummated any
consolidation or merger of the Company (A) in which the Company is not the continuing or
surviving corporation (other than a consolidation or merger with a wholly owned subsidiary
of the Company in which all shares of Common Stock outstanding immediately prior to the
effectiveness thereof are changed into or exchanged for the same consideration) or (B)
pursuant to which the Common Stock would be converted into cash, securities or other
property, in each case, other than a consolidation or merger of the Company in which the
holders of the Common Stock immediately prior to the consolidation or merger have, directly
or indirectly, at least a majority of the common stock of the continuing or surviving
corporation immediately after such consolidation or merger, or (iii) any person, or any
persons acting together which would constitute a “group” for purposes of Section 13(d) of
the Exchange Act (other than the Company, any subsidiary, any employee stock purchase plan,
stock option plan or other stock incentive plan or program, retirement plan or automatic
dividend reinvestment plan or any substantially similar plan of the Company or any
subsidiary or any person holding securities of the Company for or pursuant to the terms of
any such employee benefit plan), together with any Affiliates thereof, shall beneficially
own (as defined in Rule 13d-3 under the Exchange Act) at least 50% of the total voting power
of all classes of Capital Stock of the Company entitled to vote generally in the election of
directors of the Company.

     (c) Notwithstanding paragraph (b) above in the case of Securities which are convertible
into shares of Common Stock, a Change in Control shall not be deemed to have occurred if (i)
the Current Market Price of the Common Stock is at least equal to 105% of the conversion
price of the Securities in effect immediately preceding the time of such Change in Control,
or (ii) all of the consideration (excluding cash payments for

36

 

fractional shares) in the
transaction giving rise to such Change in Control to the holders of Common Stock consists of
shares of common stock that are, or immediately upon issuance will be, listed on a national
securities exchange or quoted in the NASDAQ National Market System, and as a result of such
transaction the Securities become convertible solely into such common stock, or (iii) the
consideration in the transaction giving rise to such Change in Control to the holders of
Common Stock consists of cash, securities that are, or immediately upon issuance will be,
listed on a national securities exchange or quoted in the NASDAQ National Market System, or
a combination of cash and such securities, and the aggregate fair market value of such
consideration (which, in the case of such securities, shall be equal to the average of the
daily closing prices of such securities during the ten consecutive trading days commencing
with the sixth trading day following consummation of such transaction) is at least 105% of
the conversion price of
the Securities in effect on the date immediately preceding the closing date of such
transaction.

     SECTION 12.04 COMPLIANCE WITH RULE 13E-4. In connection with any repurchase of Securities
pursuant to this Article XII, the Company will comply with Rule 13e-4 promulgated by the SEC under
the Exchange Act, if such Rule is applicable, and any other applicable rules and regulations of the
SEC.

ARTICLE XIII

MISCELLANEOUS

     SECTION 13.01 TRUST INDENTURE ACT CONTROLS. If any provision of this Indenture limits,
qualifies, or conflicts with the duties imposed by operation of Section 318(c) of the TIA, the
imposed duties, upon qualification of this Indenture under the TIA, shall control.

     SECTION 13.02 NOTICES. Any notice or communication from the Company or the Trustee to the
other is duly given if in writing and delivered in person or mailed by first-class mail to the
following addresses:

     If to the Company, at:

Coeur d’Alene Mines Corporation

505 Front Street

P.O. Box I

Coeur d’Alene, Idaho 83814

Fax: 208-667-2213

     If to the Trustee, at:

The Bank of New York

101 Barclay Street, Floor 4E, New York, NY 10286

Attention: Corporate Trust Administration

Fax: 212-815-5707

The Company or the Trustee by notice to the other may designate an additional or different address
for subsequent notices or communications.

37

 

     Any notice or communication to a Securityholder or a Beneficial Holder shall be mailed by
first-class mail to his address shown on the Securities Register or the Participants List. Failure
to mail a notice or communication to a Securityholder or any defect in such notice or communication
shall not affect its sufficiency with respect to other Securityholders or Beneficial Holders.

     If a notice or communication is mailed in the manner provided above within the time
prescribed, it is duly given, whether or not the addressee receives it. If the Company mails a
notice or communication to Securityholders, it shall mail a copy to the Trustee and each Agent at
the same time.

     SECTION 13.03 COMMUNICATION BY HOLDERS WITH OTHER HOLDERS. Securityholders and Beneficial
Holders may communicate pursuant to TIA ss. 312(b) with other Securityholders and Beneficial
Holders with respect to their rights under this Indenture or the Securities. The Company, the
Trustee, the Registrar and anyone else shall have the protection of TIA ss. 312(c).

     SECTION 13.04 CERTIFICATE AND OPINION AS TO CONDITIONS PRECEDENT. Upon any request or
application by the Company to the Trustee to take any action under any provision of this Indenture,
the Company shall furnish to the Trustee:

     (a) an Officers’ Certificate stating that, in the opinion of the signers, all
conditions precedent, if any, provided for in this Indenture relating to the proposed action
have been complied with; and

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

     SECTION 13.05 STATEMENTS REQUIRED IN CERTIFICATE OR OPINION. Every Officer’s Certificate or
Opinion of Counsel with respect to compliance with a condition or covenant provided for in this
Indenture shall include:

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

     (b) a brief statement as to the nature and scope of the examination or investigation
upon which the statements or opinions contained in such Officer’s Certificate or Opinion of
Counsel are based;

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

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

38

 

     SECTION 13.06 RULES BY TRUSTEE AND AGENTS. The Trustee may make reasonable rules for action
by or a meeting of Securityholders. The Registrar, Paying Agent or Conversion Agent may make
reasonable rules and set reasonable requirements for its functions.

     SECTION 13.07 LEGAL HOLIDAYS. A “Legal Holiday” is a Saturday, a Sunday or a day on which
banking institutions are not required to be open. If a payment date is a Legal Holiday at a place
of payment, payment may be made at that place on the next succeeding day that is not a Legal
Holiday, and no interest shall accrue for the intervening period.

     SECTION 13.08 NO RECOURSE AGAINST OTHERS. A director, officer, employee or stockholder, as
such, of the Company shall not have any liability for any obligations of the Company under the
Securities or the Indenture or for any claim based on, in respect of or by reason of such
obligations or their creation. Each Securityholder by accepting a Security
waives and releases all such liability. The waiver and release are part of the consideration
for the issue of the Securities.

     SECTION 13.09 COUNTERPARTS. This Indenture may be executed in any number of counterparts and
by the parties hereto in separate counterparts, each of which when so executed shall be deemed to
be an original and all of which taken together shall constitute one and the same agreement.

     SECTION 13.10 GOVERNING LAW. The internal laws of the State of New York shall govern this
Indenture and the Securities, without regard to the conflicts of laws provisions thereof.

     SECTION 13.11 NO ADVERSE INTERPRETATION OF OTHER AGREEMENTS. This Indenture may not be used
to interpret another indenture, loan or debt agreement of the Company or a subsidiary. Any such
indenture, loan or debt agreement may not be used to interpret this Indenture.

     SECTION 13.12 SUCCESSORS. All agreements of the Company in this Indenture and the Securities
shall bind its successor. All agreements of the Trustee in this Indenture shall bind its successor.

     SECTION 13.13 SEVERABILITY. In case any provision in this Indenture or in the Securities
shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the
remaining provisions shall not in any way be affected or impaired thereby.

     SECTION 13.14 TABLE OF CONTENTS, HEADINGS, ETC. The Table of Contents, Cross-Reference Table,
and headings of the Articles and Sections of this Indenture have been inserted for convenience of
reference only, are not to be considered a part hereof, and shall in no way modify or restrict any
of the terms or provisions hereof.

39

 

          IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly executed by their
respective officers or attorneys-in-fact, as the case may be, thereunto duly authorized, as of the
day and year first above written.

	 	 	 	 	 
	 	COEUR D’ALENE MINES CORPORATION,

 	 
	 	                            /s/ Mitchell J. Krebs
 	 
	 	By:                   Mitchell J. Krebs 	 
	 	Title:  	Senior Vice President 	 
	 

[Seal]

Attest:

/s/ Kelli Kast                    

Title: Secretary

[Indenture Signature]

 

 

	 	 	 	 	 
	 	THE BANK OF NEW YORK,

as Trustee

 	 
	 	/s/ Tasneem Selim
 	 
	 	By:              Tasneem Selim 	 
	 	Title:  	Assistant Vice President 	 
	 

[Indenture Signature]exv4w2

 

Exhibit 4.2

EXECUTION VERSION

COEUR D’ALENE MINES CORPORATION

ISSUER

THE BANK OF NEW YORK

TRUSTEE

 

FIRST SUPPLEMENTAL INDENTURE

Dated as of March 18, 2008

To

INDENTURE

Dated March 18, 2008

3.25% CONVERTIBLE SENIOR NOTES DUE 2028

 

 

 

CROSS-REFERENCE TABLE*

	 	 	 
	Trust Indenture Act Section	 	Indenture Section
	310(a)(1)
	 	7.10
	(a)(2)
	 	7.10
	(a)(3)
	 	N.A.
	(a)(4)
	 	N.A.
	(a)(5)
	 	N.A.
	(b)
	 	7.08; 7.10; 13.02
	(c)
	 	N.A.
	310(b)(9)
	 	7.10
	311(a)
	 	7.11
	(b)
	 	7.11
	(c)
	 	N.A.
	312(a)
	 	2.05
	(b)
	 	13.03
	(c)
	 	13.03
	313(a)
	 	7.06
	(b)(1)
	 	N.A
	(b)(2)
	 	7.06
	(c)
	 	7.06; 13.02
	(d)
	 	N.A.
	314(a)
	 	4.02; 13.02
	(b)
	 	N.A.
	(c)(1)
	 	13.04
	(c)(2)
	 	13.04
	(c)(3)
	 	N.A.
	(d)
	 	N.A.
	(e)
	 	13.05
	(f)
	 	N.A.
	315(a)
	 	7.01(b)
	(b)
	 	7.05; 13.02
	(c)
	 	7.01(a)
	(d)
	 	7.01(c)
	(e)
	 	6.11
	316(a)(last sentence)
	 	2.09
	316(a)(1)(A)
	 	6.05
	(a)(1)(B)
	 	6.04
	(a)(2)
	 	N.A.
	(b)
	 	6.07
	(c)
	 	N.A.
	(d)
	 	N.A.
	317(a)(1)
	 	6.08
	(a)(2)
	 	6.09
	(b)
	 	2.04
	318(a)
	 	13.01
	 
	 	 

 

N.A. means not applicable

			
	*	 	This Cross-Reference Table is not part of the Indenture.

(i)

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page
	ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE
	 	 	1	 
	 
	 	 	 	 
	ARTICLE II THE SECURITIES
	 	 	8	 
	 
	 	 	 	 
	ARTICLE III REDEMPTION
	 	 	13	 
	 
	 	 	 	 
	ARTICLE IV COVENANTS
	 	 	14	 
	 
	 	 	 	 
	ARTICLE V SUCCESSORS
	 	 	16	 
	 
	 	 	 	 
	ARTICLE VI DEFAULTS AND REMEDIES
	 	 	17	 
	 
	 	 	 	 
	ARTICLE VII TRUSTEE
	 	 	20	 
	 
	 	 	 	 
	ARTICLE VIII DISCHARGE OF INDENTURE
	 	 	21	 
	 
	 	 	 	 
	ARTICLE IX AMENDMENTS
	 	 	22	 
	 
	 	 	 	 
	ARTICLE X CONVERSION
	 	 	24	 
	 
	 	 	 	 
	ARTICLE XI SUBORDINATION OF SECURITIES
	 	 	38	 
	 
	 	 	 	 
	ARTICLE XII RIGHT TO REQUIRE REPURCHASE
	 	 	38	 
	 
	 	 	 	 
	ARTICLE XIII MISCELLANEOUS
	 	 	44	 

(ii)

 

 

          FIRST SUPPLEMENTAL INDENTURE, dated as of March 18, 2008 (this “Supplemental Indenture,”
together with the Base Indenture (as defined below), the “Indenture”) between Coeur d’Alene Mines
Corporation, a corporation duly organized and existing under the laws of the State of Idaho (the
“Company”), and The Bank of New York, a banking corporation duly organized under the laws of the
State of New York (the “Trustee”).

RECITALS OF THE COMPANY

          The Company has heretofore executed and delivered to the Trustee an Indenture, dated as of
March 18, 2008 (the “Base Indenture”).

          The Company desires and has requested the Trustee pursuant to Section 9.01 of the Base
Indenture to join with it in the execution and delivery of this Supplemental Indenture in order to
supplement the Base Indenture as and to the extent set forth herein to provide for the issuance and
the terms of the Company’s 3.25% Convertible Senior Notes due 2028 (herein called the
“Securities”).

          Section 9.01(d) of the Base Indenture provides that a supplemental indenture may be entered
into by the Company and the Trustee without the consent of any Holders to make a change that does
not adversely affect the legal rights of any Securityholder and, prior to the issuance of the
Securities hereunder, there are no Securityholders under the Base Indenture.

          The execution and delivery of this Supplemental Indenture has been duly authorized by a Board
Resolution of the Company, and all things necessary to make the Securities, when the Securities are
executed by the Company and authenticated and delivered hereunder, the valid obligations of the
Company have been done. Further, all things necessary to duly authorize the issuance of the Common
Stock issuable upon the conversion of the Securities, and to duly reserve for issuance the number
of shares of Common Stock issuable upon such conversion, have been done.

NOW, THEREFORE, THIS FIRST SUPPLEMENTAL INDENTURE WITNESSETH:

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

ARTICLE I

DEFINITIONS AND INCORPORATION BY REFERENCE

     Article I shall be amended as set forth below.

          A. Section 1.01 of the Base Indenture is hereby deleted and replaced in its entirety as set
forth below:

          Section 1.01 Definitions.

          “Additional Interest” has the meaning set forth in Section 6.02(b).

          “Additional Securities” has the meaning set forth in Section 2.02.

          “Additional Shares” has the meaning set forth in Section 10.11.

          “Affiliate” has the meaning provided in Rule 405 under the Securities Act or any successor
rule.

          “Bankruptcy Law” means Title 11, U.S. Code or any similar federal, state, or foreign law for
the relief of debtors.

 

 

          “Beneficial Owner” shall be determined in accordance with Rule 13d-3 and Rule 13d-5
promulgated by the SEC under the Exchange Act or any successor provision, except that, for purposes
of the definition of Fundamental Change, a Person shall be deemed to be the “Beneficial Owner” of
all shares of Common Stock that the Person has the right to acquire, whether exercisable
immediately or only after the passage of time.

          “Board of Directors” means either the board of directors of the Company or any duly authorized
committee of such board authorized to act for it with respect to this Indenture.

          “Board Resolution” means a copy of one or more resolutions, certified by an Officer of the
Company to have been duly adopted or consented to by the Board of Directors and to be in full force
and effect, and delivered to the Trustee.

          “Business Day” means a day that in the City of New York is not a day on which banking
institutions are authorized or obligated by law or regulation to close.

          “Capitalized Lease Obligations” means, as to any Person, the obligations of such Person under
a lease that is required to be classified and accounted for as a capital lease obligation under
GAAP and, for purposes of this definition, the amount of such obligations at any date shall be the
capitalized amount of such obligations at such date, determined in accordance with GAAP.

          “Capital Stock” for any entity, any and all shares, interests, rights to purchase, warrants,
options, participations or other equivalents of or interests in (however designated) stock issued
by that entity.

          “Cash Equivalents” means (i) marketable direct obligations issued by, or unconditionally
guaranteed by, the United States Government or issued by any agency thereof and backed by the full
faith and credit of the United States, in each case maturing within one year from the date of
acquisition thereof; (ii) marketable direct obligations issued by any state of the United States of
America or any political subdivision of any such state of the United States of America or any
political subdivision of any such state or any public instrumentality thereof maturing within one
year from the date of acquisition thereof and, at the time of acquisition, having one of the two
highest ratings obtainable from either Standard & Poor’s (“S&P”) or Moody’s Investors Service, Inc.
(“Moody’s”); (iii) commercial paper maturing no more than one year from the date of acquisition
thereof issued by any bank organized under the laws of the United States of America or any state
thereof or the District of Columbia or any U.S. branch of a foreign bank having at the date of
acquisition thereof combined capital and surplus of not less than $250,000,000; (iv) repurchase
obligations with a term of not more than seven days for underlying securities of the types
described in clause (i) above entered into with any bank meeting the qualifications specified in
clause (iii) above; and (v) money market funds which invest substantially all their assets in
securities of the types described in clauses (i) through (iv) above.

          “Change in Control” means the occurrence of one or more of the following events:

          (a) the Company consolidates with, or merges with or into, another Person or the Company
sells, assigns, conveys, transfers, leases or otherwise disposes of all or substantially all of the
assets of the Company, or any Person consolidates with, or merges with or into, the Company, in any
such event other than pursuant to a transaction in which the Beneficial Owners, directly or
indirectly, of the shares of Voting Stock of the Company immediately prior to such transaction are
the Beneficial Owners, directly or indirectly, of shares of Voting Stock representing at least a
majority of the total voting power of all outstanding classes of Voting Stock of the surviving or
transferee Person;

          (b) the approval by the holders of the Capital Stock of the Company of any plan or proposal
for the liquidation or dissolution of the Company, whether or not otherwise in compliance with this
Indenture;

          (c) any Person or group (as such terms are used in Sections 13(d) and 14(d) of the Exchange
Act), other than the Company, any Subsidiary of the Company, any employee benefit plans of the
Company or any such Subsidiary, becomes the Beneficial Owner or record owner, directly or
indirectly, through a purchase or other acquisition transaction or series of transactions (other
than a merger or consolidation involving the Company), of shares of Voting Stock of the Company
representing more than 50% of the aggregate ordinary voting power of all shares represented by the
issued and outstanding Voting Stock of the Company; or

2

 

          (d) the first day on which a majority of the members of the Board of Directors of the Company
are not Continuing Directors.

          Solely for the purposes of the Holders’ right to require purchase of Securities by the Company
upon a Fundamental Change, a Change in Control shall not be deemed to occur, however, if the Common
Stock Price for each of 20 or more Trading Days in a period of 30 consecutive Trading Days ending
on the last Trading Day of the calendar quarter immediately preceding the effective date of the
relevant transaction that would otherwise have constituted a Change in Control exceeds 120% of the
Conversion Price of the Securities in effect on the last Trading Day of such immediately preceding
calendar quarter.

          “Common Stock” shall mean shares of the Company’s Common Stock, $1.00 par value per share, as
they exist on the date of this Indenture or any other shares of Capital Stock of the Company into
which the Common Stock shall be reclassified or changed.

          “Common Stock Price” on any date means the closing sale price per share of Common Stock (or,
if no closing sale price is reported, the average of the bid and asked prices or, if more than one
in either case, the average of the average bid and the average asked prices) at 4:00 pm (New York
City time) on such date as reported by The New York Stock Exchange or, if the shares of Common
Stock are not reported by The New York Stock Exchange, in composite transactions for the principal
U.S. national or regional securities exchange on which the Common Stock is traded. If the Common
Stock is not listed for trading on a U.S. national or regional securities exchange on the relevant
date, the Common Stock Price will be the last quoted bid price for the Common Stock in the
over-the-counter market on the relevant date as reported by the National Quotation Bureau
Incorporated or similar organization. If the Common Stock is not so quoted, the Common Stock Price
will be the average of the mid-point of the last bid and asked prices for the Common Stock on the
relevant date from each of at least three independent nationally recognized investment banking
firms selected by the Company for this purpose. Any such determination shall be conclusive, absent
manifest error.

          “Company” means the party named as the “Company” in the first paragraph of this Indenture
until a successor replaces it pursuant to the applicable provisions of this Indenture and,
thereafter, shall mean such successor. The foregoing sentence shall likewise apply to any
subsequent successor or successors.

          “Company Order” means a written request or order signed in the name of the Company by any two
Officers.

          “Continuing Directors” means, as of any date of determination, any member of the Board of
Directors who (a) was a member of the Board of Directors on the date of the Issue Date or (b) was
nominated for election or elected to the Board of Directors with approval of a majority of the
Continuing Directors who were members at the time of the new director’s nomination or election.

          “Conversion Agent” means the party named in Section 2.03 of the Base Indenture.

          “Conversion Date” has the meaning set forth in Section 10.03(a).

          “Conversion Notice” has the meaning set forth in Section 10.03(a).

          “Conversion Price” has the meaning set forth in Section 10.02(a).

          “Conversion Rate” has the meaning set forth in Section 10.02(a).

          “Conversion Settlement Averaging Period” has the meaning set forth in Section 10.02(b)(v).

          “Conversion Value” has the meaning set forth in Section 10.02(b)(v).

          “Corporate Trust Office” means the office of the Trustee at which at any time the trust
created by this Indenture shall be administered, which office at the date hereof is located at 101
Barclay Street – 4E, New York, NY, 10286, Attention: Global Finance Unit, or such other address as
the Trustee may designate from time to time by notice to the Holders and the Company, or the
principal corporate trust office of any successor Trustee (or such other address as a successor
Trustee may designate from time to time by notice to the Holders and the Company).

3

 

          “Daily Conversion Value” has the meaning set forth in Section 10.02(b)(v).

          “Daily Share Amount” has the meaning set forth in Section 10.02(b)(v).

          “Daily VWAP” has the meaning set forth in Section 10.02(b)(v).

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

          “Definitive Securities” has the meaning set forth in the Base Indenture and is in the form of
the Security attached hereto as Exhibit B.

          “Depositary” means the “Depository” under the Base Indenture. The Depository is with respect
to the Global Security, the person specified in Section 2.03 of the Base Indenture as the
Depository with respect to the Global Security, until a successor shall have been appointed and
become such pursuant to the applicable provisions of this Indenture, and, thereafter, “Depository”
shall mean or include such successor.

          “Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and
regulations promulgated thereunder, as in effect from time to time.

          “Ex-Dividend Date” means the first date upon which a sale of the Common Stock does not
automatically transfer the right to receive a distribution that is payable by the Company to
holders of Common Stock from the seller of the Common Stock to its buyer.

          “Extension Right” has the meaning set forth in Section 6.02(b).

          “Final Notice Date” has the meaning set forth in Section 10.02(b).

          “Fundamental Change” means the occurrence of a Change in Control or a Termination of Trading.

          “Fundamental Change Effective Date” has the meaning set forth in Section 12.02(a).

          “Fundamental Change Notice” has the meaning set forth in Section 12.02(b).

          “Fundamental Change Notice Date” has the meaning set forth in Section 12.02(b).

          “Fundamental Change Repurchase Date” has the meaning set forth in Section 12.02(b)(iii).

          “Fundamental Change Repurchase Notice” has the meaning set forth in Section 12.02(c).

          “Fundamental Change Repurchase Price” has the meaning set forth in Section 12.02(a).

          “GAAP” means generally accepted accounting principles set forth in the opinions and
pronouncements of the Accounting Principles Board of the American Institute of Certified Public
Accountants and statements and pronouncements of the Financial Accounting Standards Board or in
such other statements by such other entity as may be approved by a significant segment of the
accounting profession of the United States, which are in effect from time to time.

          “Global Securities” means Securities that are in the form of the Security attached hereto as
Exhibit A.

          “Holder” or “Securityholder” means a Person in whose name a Security is registered on the
Registrar’s books.

          “Indebtedness” means, with respect to any Person, without duplication, (a) all indebtedness,
obligations and other liabilities (contingent or otherwise) of such Person (i) for borrowed money
(including obligations of such Person in respect of overdrafts, and any loans or advances from
banks, whether or not evidenced by notes or similar instruments) or (ii) evidenced by credit or
loan agreements, bonds, debentures, notes or similar instruments (whether or not the recourse of
the lender is to the whole of the assets of such Person or to only a portion thereof) other

4

 

than any account payable or other accrued current liability or obligation incurred in the
ordinary course of business in connection with the obtaining of materials or services, (b) all
reimbursement obligations and other liabilities (contingent or otherwise) of such Person with
respect to letters of credit, bank guarantees or bankers’ acceptances, (c) all obligations and
liabilities (contingent or otherwise) of such Person (i) in respect of Capitalized Lease
Obligations or (ii) under any lease or related document (including a purchase agreement,
conditional sale or other title retention agreement) in connection with the lease of real property
or improvements thereon (or any personal property included as part of any such lease) which
provides that such Person is contractually obligated to purchase or cause a third party to purchase
the leased property or pay an agreed-upon residual value of the leased property, including the
obligations of such Person under such lease or related document to purchase or cause a third party
to purchase such leased property or pay an agreed upon residual value of the leased property to the
lessor (whether or not such lease transaction is characterized as an operating lease or a
Capitalized Lease Obligation), (d) all aggregate net payment obligations (contingent or otherwise)
of such Person with respect to any interest rate or other swap, cap, floor or collar agreement,
hedge agreement, forward contract, or other similar instrument or agreement or foreign currency
hedge, exchange, purchase or similar instrument or agreement, (e) all direct or indirect guaranties
or similar agreements by such Person in respect of, and all obligations or liabilities of such
Person to purchase or otherwise acquire or otherwise assure a creditor against loss in respect of,
indebtedness, obligations or liabilities of another Person of the kinds described in
clauses (a) through (d), and (f) any and all deferrals, renewals, extensions, refinancings and
refundings of, or amendments, modifications or supplements to, any indebtedness, obligation or
liability of the kinds described in clauses (a) through (e); provided, however, that Indebtedness
shall not include obligations of any Person (x) arising from the honoring by a bank or other
financial institution of a check, draft or similar instrument inadvertently drawn against
insufficient funds in the ordinary course of business, provided such obligations are extinguished
within two Business Days of their incurrence, (y) resulting from the endorsement of negotiable
instruments for collection in the ordinary course of business and consistent with past business
practices or (z) stand-by letters of credit to the extent collaterallized by cash or Cash
Equivalents.

          “Indenture” means this Indenture, as amended or supplemented from time to time in accordance
with the terms hereof, including the provisions of the TIA that are deemed to be a part hereof.

          “Initial Securities” has the meaning set forth in Section 2.02.

          “Issue Date” of any Security means the date on which the Security was originally issued or
deemed issued as set forth on the face of the Security.

          “Market Disruption Event” means the occurrence or existence for more than one half hour period
in the aggregate on any scheduled Trading Day for the Common Stock of any suspension or limitation
imposed on trading (by reason of movements in price exceeding limits permitted by The New York
Stock Exchange or otherwise) in the Common Stock or in any options, contracts or future contracts
relating to the Common Stock, and such suspension or limitation occurs or exists at any time before
1:00 p.m. (New York City time) on such day.

          “Market Price” has the meaning set forth in Section 12.01(a).

          “Officer” means the Chairman and Chief Executive Officer, the President, any Vice President
(whether or not such is preceded by any modifier such as “Executive, “Senior” or the like), the
Chief Financial Officer, the Treasurer, the Controller or the Secretary of such Person or any other
officer designated by the board of directors of such Person serving in a similar capacity;
provided, that the designation of any such Officer by the Board of Directors of the Company shall
be evidenced in a Board Resolution.

          “Officers’ Certificate” means a written certificate containing the information specified in
Sections 13.04 and 13.05, signed in the name of the Company by any two Officers, and delivered to
the Trustee. An Officers’ Certificate given pursuant to Section 4.03 shall be signed by the
principal executive officer, principal financial officer or the principal accounting officer of the
Company but need not contain the information specified in Sections 13.04 and 13.05.

          “Opinion of Counsel” means a written opinion containing the information specified in
Sections 13.04 and 13.05, from legal counsel. The counsel may be an employee of, or counsel to,
the Company.

          “Paying Agent” means the party named in Section 2.03 of the Base Indenture.

5

 

          “Person” means any individual, corporation, limited liability company, partnership, joint
venture, association, joint-stock company, trust, unincorporated organization, government or any
agency or political subdivision thereof or other entity.

          “Principal Portion” has the meaning set forth in Section 10.02(b).

          “Qualifying Fundamental Change” has the meaning set forth in Section 10.11.

          “QFC Effective Date” has the meaning set forth in Section 10.11.

          “Redemption Date” shall mean with respect to any Securities the date specified for redemption
of such Securities in accordance with the terms of the Securities and this Indenture.

          “Redemption Price” shall have the meaning set forth in paragraph 5 of the Securities.

          “Reference Property” has the meaning set forth in Section 10.08(d).

          “Registrar” means the party named in Section 2.03 of the Base Indenture.

          “Repurchase Company Notice” has the meaning set forth in Section 12.01(b).

          “Repurchase Date” has the meaning set forth in Section 12.01(a).

          “Repurchase Notice” has the meaning set forth in Section 12.01(a)(i).

          “Repurchase Price” has the meaning set forth in Section 12.01(a).

          “Responsible Officer” shall mean, when used with respect to the Trustee, any officer within
the corporate trust department of the Trustee, including any vice president, assistant vice
president, assistant treasurer, trust officer or any other officer of the Trustee who customarily
performs functions similar to those performed by the Persons who at the time shall be such
officers, respectively, or to whom any corporate trust matter is referred because of such person’s
knowledge of and familiarity with the particular subject and who shall have direct responsibility
for the administration of this Indenture.

          “SEC” means the Securities and Exchange Commission.

          “Securities Custodian” means the Trustee, as custodian with respect to the Global Security or
any successor entity thereto.

          “Securities Register” has the meaning set forth in Section 2.03 of the Base Indenture.

          “Security” or “Securities” means any of the Company’s 3.25% Convertible Senior Notes Due 2028,
as amended or supplemented from time to time, issued under this Indenture.

          “Security Trading Price” per $1,000 in principal amount of Securities on any date of
determination means the average of the secondary market bid quotations per $1,000 in principal
amount of Securities obtained by the Trustee for $2,000,000 in principal amount of Securities at
approximately 3:30 p.m., New York City time, on such determination date from three independent
nationally recognized securities dealers selected by the Company; provided that if at least three
such bids cannot reasonably be obtained by the Trustee, but two such bids are obtained, then the
average of the two bids shall be used, and if only one such bid can reasonably be obtained by the
Trustee, such one bid shall be used. If the Trustee cannot reasonably obtain at least one bid for
$2,000,000 in principal amount of Securities from a nationally recognized securities dealer, then
the Security Trading Price on such date of determination shall be deemed to be less than 95% of the
product of the Common Stock Price on that day multiplied by the Conversion Rate. Any such
determination shall be conclusive, absent manifest error.

          “Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations
promulgated thereunder, as in effect from time to time.

6

 

          “Settlement Amount” has the meaning set forth in Section 10.02(b)(v).

          “Specified Cash Amount” has the meaning set forth in Section 10.02(b)(v)(B).

          “Significant Subsidiary” has the meaning ascribed to such term in Regulation S-X (17 C.F.R.
Part 210).

          “Stated Maturity,” when used with respect to any Security, means the date specified in such
Security as the fixed date on which an amount equal to the principal amount of such Security is due
and payable.

          “Stock Price” has the meaning set forth in Section 10.11.

          “Subsidiary” means, with respect to any Person, (i) any corporation of which the outstanding
Capital Stock having at least a majority of the votes entitled to be cast in the election of
directors under ordinary circumstances (determined without regard to any classification of
directors) shall at the time be owned, directly or indirectly, by such Person, (ii) any other
Person (other than a partnership) of which at least a majority of the voting interest under
ordinary circumstances is at the time, directly or indirectly, owned by such Person or (iii) any
partnership (a) the sole general partner or the managing general partner of which is such Person or
a Subsidiary of such Person or (b) the only general partners of which are such Person or one or
more Subsidiaries of such Person (or any combination thereof).

          “Termination of Trading” means that the Common Stock or other securities (including depository
receipts of other certificates representing common equity interests) into which the Securities are
convertible are not approved for listing on a U.S. national or regional securities exchange.

          “TIA” means the Trust Indenture Act of 1939 as in effect on the date of this Indenture,
provided, however, that in the event the TIA is amended after such date, “TIA” means, to the extent
required by any such amendment, the TIA as so amended.

          “Trading Day” means any day on which (i) there is no Market Disruption Event and (ii) trading
in the Common Stock generally occurs on The New York Stock Exchange, or if the Common Stock is not
listed on The New York Stock Exchange, the principal other U.S. national or regional securities
exchange on which the Common Stock is then listed, admitted for trading or quoted, or, if the
Common Stock is not so listed, admitted for trading or quoted, any Business Day; provided, however,
that a “Trading Day” only includes those days that have a scheduled closing time of 4:00 p.m. (New
York City time) or the then-standard closing time for regular trading on the relevant exchange or
trading system.

          “Trustee” means the party named as the “Trustee” in the first paragraph of this First
Supplemental Indenture until a successor replaces it pursuant to the applicable provisions of this
Indenture and, thereafter, shall mean such successor. The foregoing sentence shall likewise apply
to any subsequent such successor or successors.

          “Underwriters” shall mean Deutsche Bank Securities Inc. and J.P. Morgan Securities Inc.

          “Voting Stock” of a Person means Capital Stock of such Person of the class or classes pursuant
to which the holders thereof have the general voting power under ordinary circumstances (determined
without regard to any classification of directors) to elect at least a majority of the board of
directors, managers or trustees of such Person (irrespective of whether or not at the time Capital
Stock of any other class or classes shall have or might have voting power by reason of the
happening of any contingency).

          B. Article I of the Base Indenture is hereby amended to include new Sections 1.04 and 1.05:

          Section 1.04.
Other Definitions.

	 	 	 
	Term	 	Defined in Section:
	Acts
	 	1.05(a)
	Agent Members
	 	2.14(b)(v)
	Event of Default
	 	6.01
	Legal Holiday
	 	13.08

7

 

	 	 	 
	Legend
	 	2.01
	Quarter
	 	10.01(a)
	Stockholder Rights Plan
	 	10.08(c)

          Section 1.05 Acts of Holders.

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

          (b) The fact and date of the execution by any Person of any such instrument or writing may be
proved by the affidavit of a witness of such execution or by a certificate of a notary public or
other officer authorized by law to take acknowledgments of deeds, certifying that the individual
signing such instrument or writing acknowledged to such officer the execution thereof. Where such
execution is by a signer acting in a capacity other than such signer’s individual capacity, such
certificate or affidavit shall also constitute sufficient proof of such signer’s authority.

          The fact and date of the execution of any such instrument or writing, or the authority of the
Person executing the same, may also be proved in any other manner which the Trustee deems
sufficient.

          (c) The ownership of Securities shall be proved by the register maintained by the Registrar.

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

          If the Company shall solicit from the Holders any request, demand, authorization, direction,
notice, consent, waiver or other Act, the Company may, at its option, by or pursuant to a Board
Resolution, fix in advance a record date for the determination of Holders entitled to give such
request, demand, authorization, direction, notice, consent, waiver or other Act, but the Company
shall have no obligation to do so. If such a record date is fixed, such request, demand,
authorization, direction, notice, consent, waiver or other Act may be given before or after such
record date, but only the Holders of record at the close of business on such record date shall be
deemed to be Holders for the purposes of determining whether Holders of the requisite proportion of
outstanding Securities have authorized or agreed or consented to such request, demand,
authorization, direction, notice, consent, waiver or other Act, and for that purpose the
outstanding Securities shall be computed as of such record date; provided that no such
authorization, agreement or consent by the Holders on such record date shall be deemed effective
unless it shall become effective pursuant to the provisions of this Indenture not later than
six months after the record date.

ARTICLE II

THE SECURITIES

     Article II shall be amended as set forth below.

          A. Section 2.01 of the Base Indenture is hereby amended to include at the end of that section
two new paragraphs as set forth below:

8

 

          The Company shall execute and the Trustee shall, in accordance with this Section 2.01,
authenticate and deliver initially one or more Global Securities that (i) shall be registered in
the name of the Depositary, (ii) shall be delivered by the Trustee to the Depositary or pursuant to
the Depositary’s instructions and (iii) shall bear legends (collectively, the “Legend”)
substantially to the following effect:

     “UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY TO COEUR d’ALENE MINES CORPORATION (THE “COMPANY”) OR ITS
AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED
IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (AND ANY PAYMENT HEREON IS
MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY), ANY TRANSFER, PLEDGE OR OTHER USE
HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED
OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. TRANSFERS OF THIS GLOBAL SECURITY
SHALL BE LIMITED TO TRANSFERS TO NOMINEES OF THE DEPOSITORY TRUST COMPANY OR TO A
SUCCESSOR THEREOF OR SUCH SUCCESSOR’S NOMINEE AND TRANSFERS OF PORTIONS OF THIS
GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE
RESTRICTIONS SET FORTH IN ARTICLE TWO OF THE INDENTURE REFERRED TO ON THE REVERSE
HEREOF.”

          Securities not issued as interests in the Global Securities will be issued as Definitive
Securities substantially in the form of Exhibit B attached hereto.

          B. Section 2.02 of the Base Indenture is hereby deleted and replaced in its entirety as set
forth below:

          Section 2.02. Execution and Authentication. The Securities shall be executed on
behalf of the Company by the manual or facsimile signature of any Officer.

          Securities bearing the manual or facsimile signatures of individuals who were at the time of
the execution of the Securities the proper Officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such offices prior to the
authentication and delivery of such Securities or did not hold such offices at the date of
authentication of such Securities.

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

          The Trustee initially shall authenticate and deliver Securities for original issue in an
aggregate principal amount of up to $200,000,000 (or, if the Underwriters exercise their option to
purchase additional Securities in an aggregate principal amount of up to $30,000,000, up to
$230,000,000) upon a Company Order without any further action by the Company.

          The Securities shall be issued only in registered form without coupons and only in
denominations of $1,000 principal amount and any integral multiple thereof.

          The aggregate principal amount of Securities which may be authenticated and delivered under
this Indenture is unlimited. The Company may, without the consent of the Holders of Securities,
issue additional Securities (the “Additional Securities”) from time to time in the future with the
same terms and the same CUSIP number as the Securities originally issued under this Indenture (the
“Initial Securities”) in an unlimited aggregate principal amount, provided that such Additional
Securities must be part of the same issue as the Initial Securities for United States federal
income tax purposes. The Initial Securities and any such Additional Securities will be treated as
a single class of debt securities for all purposes under this Indenture, and in circumstances in
which this Indenture provides for the Holders

9

 

of Securities to vote or take any action, the Holders of Initial Securities and the Holders of
any such Additional Securities will vote or take that action as a single class on all matters with
respect to the Securities.

          C. Section 2.06 of the Base Indenture is hereby deleted and replaced in its entirety as set
forth below:

          Section 2.06. Transfer and Exchange. Subject to Section 2.14 hereof, upon surrender
for registration of transfer of any Securities, together with a written instrument of transfer
satisfactory to the Registrar duly executed by the Securityholder or such Securityholder’s attorney
duly authorized in writing, at the office or agency of the Company designated as Registrar or
co-registrar pursuant to Section 2.03, the Company shall execute and the Trustee shall authenticate
and deliver, in the name of the designated transferee or transferees, one or more new Securities of
any authorized denomination or denominations, of a like aggregate principal amount. The Company
shall not charge a service charge for any registration of transfer or exchange, but the Company may
require payment of a sum sufficient to pay all taxes, assessments or other governmental charges
that may be imposed in connection with the transfer or exchange of the Securities from the
Securityholder requesting such transfer or exchange.

          At the option of the Holder, Securities may be exchanged for other Securities of any
authorized denomination or denominations, of a like aggregate principal amount, upon surrender of
the Securities to be exchanged, together with a written instrument of transfer satisfactory to the
Registrar duly executed by the Securityholder or such Securityholder’s attorney duly authorized in
writing, at such office or agency. Whenever any Securities are so surrendered for exchange, the
Company shall execute, and the Trustee shall authenticate and deliver, the Securities that the
Holder making the exchange is entitled to receive.

          The Company shall not be required to make, and the Registrar need not register, transfers or
exchanges of Securities selected for redemption (except, in the case of Securities to be redeemed
in part, the portion thereof not to be redeemed) or any Securities in respect of which a Repurchase
Notice or Fundamental Change Repurchase Notice has been given and not withdrawn by the Holder
thereof in accordance with the terms of this Indenture (except, in the case of Securities to be
purchased in part, the portion thereof not to be purchased).

          Notwithstanding any provision to the contrary herein, so long as a Global Security remains
outstanding and is held by or on behalf of the Depositary, transfers of a Global Security, in whole
or in part, shall be made only in accordance with Section 2.14 and this Section 2.06. Transfers of
a Global Security shall be limited to transfers of such Global Security in whole, or in part, to
nominees of the Depositary or to a successor of the Depositary or such successor’s nominee.

          Successive registrations and registrations of transfers and exchanges as aforesaid may be made
from time to time as desired, and each such registration shall be noted on the register for the
Securities.

          Any Registrar appointed pursuant to Section 2.03 hereof shall provide to the Trustee such
information as the Trustee may reasonably require in connection with the delivery by such Registrar
of Securities upon transfer or exchange of Securities.

          No Registrar shall be required to make registrations of transfer or exchange of Securities
during any periods designated in the text of the Securities or in this Indenture as periods during
which such registration of transfers and exchanges need not be made.

          D. Section 2.08 of the Base Indenture is hereby deleted and replaced in its entirety as set
forth below:

          Section 2.08. Outstanding Securities; Determinations of Holders’ Action. Securities
outstanding at any time are all the Securities authenticated by the Trustee, except for those
cancelled by it, those paid pursuant to Section 2.07, those delivered to the Trustee for
cancellation pursuant to Section 2.11 and those described in this Section 2.08 as not outstanding.
A Security does not cease to be outstanding because the Company or an Affiliate thereof holds the
Security; provided, however, that in determining whether the Holders of the requisite principal
amount of Securities have given or concurred in any request, demand, authorization, direction,
notice, consent or waiver hereunder, Securities owned by the Company or any other obligor upon the
Securities or any Affiliate of the Company or such other obligor shall be disregarded and deemed
not to be outstanding, except that, in determining

10

 

whether the Trustee shall be protected in relying upon any such request, demand,
authorization, direction, notice, consent or waiver, only Securities which a Responsible Officer of
the Trustee actually knows to be so owned shall be so disregarded. Subject to the foregoing, only
Securities outstanding at the time of such determination shall be considered in any such
determination (including, without limitation, determinations pursuant to Articles VI and IX).

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

          If the Paying Agent holds, in accordance with this Indenture, on a Redemption Date, or on the
Business Day following a Repurchase Date, as defined below, or a Fundamental Change Repurchase
Date, or on Stated Maturity, money sufficient to pay amounts owed with respect to Securities
payable on that date, then immediately after such Redemption Date, Repurchase Date, Fundamental
Change Repurchase Date or Stated Maturity, as the case may be, such Securities shall cease to be
outstanding and interest on such Securities shall cease to accrue; provided that if such Securities
are to be redeemed, notice of such redemption has been duly given pursuant to this Indenture or
provision therefor satisfactory to the Trustee has been made.

          If a Security is converted in accordance with Article X, then from and after the time of
conversion on the Conversion Date, such Security shall cease to be outstanding and interest shall
cease to accrue on such Security.

          E. Article II of the Base Indenture is hereby amended to include new Sections 2.13, 2.14,
2.15, 2.16 and 2.17 as set forth below:

          Section 2.13. Persons Deemed Owners. Prior to due presentment of a Security for
registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee may
treat the Person in whose name such Security is registered as the owner of such Security for the
purpose of receiving payment of the principal amount of the Security or the payment of any
Redemption Price, Repurchase Price, as defined below, or Fundamental Change Repurchase Price in
respect thereof, and accrued but unpaid interest thereon, for the purpose of conversion and for all
other purposes whatsoever, whether or not such Security be overdue, and neither the Company, the
Trustee nor any agent of the Company or the Trustee shall be affected by notice to the contrary.

          Section 2.14. Global Securities.

          (a) A Global Security may not be transferred, in whole or in part, to any Person other than
the Depositary or a nominee or any successor thereof, and no such transfer to any such other Person
may be registered; provided that the foregoing shall not prohibit any transfer of a Security that
is issued in exchange for a Global Security but is not itself a Global Security. No transfer of a
Security to any Person shall be effective under this Indenture or the Securities unless and until
such Security has been registered in the name of such Person. Notwithstanding any other provisions
of this Indenture or the Securities, transfers of a Global Security, in whole or in part, shall be
made only in accordance with Section 2.06 and this Section 2.14.

          (b) The provisions of clauses (i) through (vi) below shall apply only to Global Securities:

              (i) Notwithstanding any other provisions of this Indenture or the Securities, a
Global Security shall not be exchanged in whole or in part for a Security registered
in the name of any Person other than the Depositary or one or more nominees thereof;
provided that a Global Security may be exchanged for Securities registered in the
names of any Person designated by the Depositary in the event that (x) the
Depositary has notified the Company that it is unwilling or unable to continue as
Depositary for such Global Security or such Depositary has ceased to be a “clearing
agency” registered under the Exchange Act, and a successor Depositary is not
appointed by the Company within 90 days, (y) the Company has provided the Depositary
with written notice that it has decided to discontinue use of the system of
book-entry transfer through the Depositary or any successor Depositary or (z) an
Event of Default has occurred and is continuing with respect to the Securities. Any
Global Security exchanged pursuant to clauses (x) or (y) above shall be so exchanged
in whole and not in part, and any Global Security exchanged pursuant to
clause (z) above may be exchanged in whole or from time to time in part as directed
by the Depositary. Any Security issued in exchange for a Global Security or any
portion thereof shall be a Global Security; provided

11

 

that any such Security so issued that is registered in the name of a Person other
than the Depositary or a nominee thereof shall not be a Global Security.

     (ii) Securities issued in exchange for a Global Security or any portion thereof
shall be issued in definitive, fully registered form, without interest coupons,
shall have an aggregate principal amount equal to that of such Global Security or
portion thereof to be so exchanged, shall be registered in such names and be in such
authorized denominations as the Depositary shall designate and shall bear the
applicable legends provided for herein. Any Global Security to be exchanged in
whole shall be surrendered by the Depositary to the Trustee, as Registrar. With
regard to any Global Security to be exchanged in part, either such Global Security
shall be so surrendered for exchange or, if the Trustee is acting as custodian for
the Depositary or its nominee with respect to such Global Security, the principal
amount thereof shall be reduced, by an amount equal to the portion thereof to be so
exchanged, by means of an appropriate adjustment made on the records of the Trustee.
Upon any such surrender or adjustment, the Trustee shall authenticate and deliver
the Security issuable on such exchange to or upon the order of the Depositary or an
authorized representative thereof.

     (iii) Subject to the provisions of clause (v) below, the registered Holder may
grant proxies and otherwise authorize any Person, including Agent Members (as
defined below) and Persons that may hold interests through Agent Members, to take
any action which a Holder is entitled to take under this Indenture or the
Securities.

     (iv) In the event of the occurrence of any of the events specified in
clause (i) above, the Company will promptly make available to the Trustee a
reasonable supply of Definitive Securities in definitive, fully registered form,
without interest coupons.

     (v) Neither any members of, or participants in, the Depositary (collectively,
the “Agent Members”) nor any other Persons on whose behalf Agent Members may act
shall have any rights under this Indenture with respect to any Global Security
registered in the name of the Depositary or any nominee thereof, or under any such
Global Security, and the Depositary or such nominee, as the case may be, may be
treated by the Company, the Trustee and any agent of the Company or the Trustee as
the absolute owner and holder of such Global Security for all purposes whatsoever.
Notwithstanding the foregoing, nothing herein shall prevent the Company, the Trustee
or any agent of the Company or the Trustee from giving effect to any written
certification, proxy or other authorization furnished by the Depositary or such
nominee, as the case may be, or impair, as between the Depositary, its Agent Members
and any other Person on whose behalf an Agent Member may act, the operation of
customary practices of such Persons governing the exercise of the rights of a holder
of any security.

     (vi) With respect to any Global Security, the Company, the Registrar and the
Trustee shall be entitled to treat the Person in whose name such Global Security is
registered as the absolute owner of such Security for all purposes of this
Indenture, and neither the Company, the Registrar nor the Trustee shall have any
responsibility or obligation to any Agent Members or other beneficial owners of the
Securities represented by such Global Security. Without limiting the immediately
preceding sentence, neither the Company, the Registrar nor the Trustee shall have
any responsibility or obligation with respect to (a) the accuracy of the records of
any Depositary or any other Person with respect to any ownership interest in any
Global Security, (b) the delivery to any Person, other than a Holder, of any notice
with respect to the Securities represented by a Global Security, including any
notice of redemption or refunding, (c) the selection of the particular Securities or
portions thereof to be redeemed or refunded in the event of a partial redemption or
refunding of part of the Securities outstanding or (d) the payment to any Person,
other than a Holder, of any amount with respect to the principal of, the Redemption
Price, Repurchase Price or interest with respect to any Global Security.

          Section 2.15. CUSIP Numbers. Subject to Section 2.02, the Company may issue the
Securities with one or more “CUSIP” numbers (if then generally in use), and, if so, the Trustee
shall use “CUSIP” numbers in notices of redemption as a convenience to Holders; provided that any
such notice may state that no representation is made as to the correctness of such numbers either
as printed on the Securities or as contained in any notice of a

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redemption and that reliance may be placed only on the other identification numbers printed on the
Securities, and any such redemption shall not be affected by any defect in or omission of such
numbers. The Company will promptly notify the Trustee of any change in the CUSIP numbers.

          Section 2.16. Ranking. The Securities shall be senior unsecured obligations of the
Company and shall rank equally in right of payment with all existing and future senior indebtedness
of the Company. The Securities shall be senior in right of payment to all existing and future
indebtedness that is expressly subordinated in right of payment to the Securities.

          Section 2.17. Company Determination Final. The Company will be responsible for making
all calculations required under the Securities, unless otherwise set forth in this Indenture. Such
calculations include, but are not limited to, determinations of the last reported Common Stock
Price, the Conversion Settlement Averaging Period, the Daily VWAP, the Daily Conversion Value, if
applicable, the Settlement Amount, the Conversion Rate and the amount of accrued interest payable
on the Securities. The Company shall make all such calculations in good faith, and, absent
manifest error, such calculations shall be final and binding on Holders of Securities. The Company
shall provide a schedule of its calculations to the Trustee and the Conversion Agent, and the
Trustee and the Conversion Agent are entitled to rely upon the accuracy of such calculations
without independent verification. The Trustee will forward such calculations to any Holder upon
the request of such Holder.

ARTICLE III

REDEMPTION

     Article III shall be amended as set forth below.

          A. Section 3.01 of the Base Indenture is hereby deleted and replaced in its entirety as set
forth below:

          Section 3.01. Right To Redeem; Notices To Trustee.

          (a) Optional Redemption. The Company, at its option, may redeem the Securities in accordance
with the provisions of paragraphs 5 and 7 of the Securities and at the Redemption Price specified
in paragraph 5 of the Securities, together with accrued but unpaid interest, thereon up to but not
including the Redemption Date; provided that if the Redemption Date is on or after an interest
record date, but on or prior to the related interest payment date, interest will be payable to the
Holders in whose names the Securities are registered at the close of business on the relevant
record date for payment of such interest.

          (b) Notice to Trustee. If the Company elects to redeem Securities pursuant to this Section
3.01, it shall notify the Trustee in writing of the Redemption Date, the principal amount of
Securities to be redeemed and the Redemption Price. The Company shall give the notice to the
Trustee provided for in this Section 3.01(b) by a Company Order at least 30 days but not more than
60 days before the Redemption Date.

          B. Section 3.02 of the Base Indenture is hereby amended to include at the end of such Section
3.02 new paragraphs as set forth below:

          Provisions of this Indenture that apply to Securities called for redemption also apply to
portions of Securities called for redemption.

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

          C. Section 3.03 is hereby amended to delete clauses (a) through (j) and replace them in their
entireties with the clauses set forth below:

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          (a) the Redemption Date;

          (b) the Redemption Price and, to the extent known at the time of such notice, the amount of
interest, payable on the Redemption Date;

          (c) the current Conversion Rate and Conversion Price;

          (d) the name and address of the Paying Agent and Conversion Agent;

          (e) that Securities called for redemption may be converted at any time before the close of
business on the second Business Day immediately preceding the Redemption Date;

          (f) that Holders who want to convert Securities must satisfy the requirements set forth in
paragraph 8 of the Securities;

          (g) that Securities called for redemption must be surrendered to the Paying Agent to collect
the Redemption Price therefor, including any accrued but unpaid interest;

          (h) if fewer than all the outstanding Securities are to be redeemed, the principal amounts of
the particular Securities to be redeemed;

          (i) that, unless the Company defaults in making such payment, interest on Securities called
for redemption will cease to accrue on and after the Redemption Date and the Securities will cease
to be convertible; and

          (j) the CUSIP number of the Securities.

          D. The last paragraph of Section 3.03 of the Base Indenture is hereby deleted and replaced it
in its entirety with a new paragraph as set forth below:

          At the Company’s request, the Trustee shall give the notice of redemption in the Company’s
name and at the Company’s expense; provided that the Company makes such request at least five days
prior to the date by which such notice of redemption must be given to Holders in accordance with
this Section 3.03 and the Company provides the Trustee with all information required for such
notice of redemption.

          E. Article III of the Base Indenture is hereby amended to include a new Section 3.07 as set
forth below:

          Section 3.07. Sinking Fund. There shall be no sinking fund provided for in the
Securities.

ARTICLE IV

COVENANTS

     Article IV shall be amended as set forth below.

          A. The first paragraph of Section 4.01 of the Base Indenture is hereby deleted and replaced
in its entirety as set forth below:

          Section 4.01. Payment of Securities. The Company shall promptly make all payments in
respect of the Securities on the dates and in the manner provided in the Securities or pursuant to
this Indenture. Any amounts to be given to the Trustee or Paying Agent, as the case may be, shall
be deposited with the Trustee or Paying Agent, as the case may be, by 11:00 a.m. (New York City
time), on the dates required pursuant to Section 2.04 hereof. Interest installments, principal
amount, Redemption Price, Repurchase Price, Fundamental Change Repurchase Price and interest, if
any, due on overdue amounts shall be considered paid on the applicable date due if at 11:00 a.m.
(New York

14

 

City time) on such date (in the case of a Repurchase Price or Fundamental Change Repurchase
Price, on or prior to the Repurchase Date or Fundamental Change Repurchase Date, as the case may
be) the Trustee or the Paying Agent, as the case may be, holds, in accordance with this Indenture,
money sufficient to pay all such amounts then due.

          B. Section 4.02 of the Base Indenture is hereby amended to (i) change “The Company shall
deliver to the Trustee within 15 days after it files them with the SEC” to “The Company shall file
with the Trustee within 30 days after it is required to file them with the SEC,” and (ii) include a
sentence at the end of that Section 4.02 as set forth below:

          The filing by the Company of such documents with the SEC pursuant to the EDGAR system shall be
deemed to satisfy the obligation of the Company under this Section 4.02 to file such documents with
the Trustee.

          C. Section 4.03 of the Base Indenture is hereby deleted and replaced in its entirety as set
forth below:

          Section 4.03. Compliance Certificate. The Company shall deliver to the Trustee,
within 120 calendar days after the end of each fiscal year of the Company, an Officers’ Certificate
stating whether or not the signatories to such Officers’ Certificate know of any Default or Event
of Default by the Company in performing any of its obligations under this Indenture or the
Securities. If such signatories do know of any such Default or Event of Default, then such
Officers’ Certificate shall describe the Default or Event of Default and its status.

               In addition, the Company shall deliver an Officers’ Certificate to the Trustee, promptly upon
an Officer obtaining knowledge of any Default or Event of Default that has occurred and, if
applicable, describe such Default or Event of Default and the status thereof.

          D. Article IV of the Base Indenture is hereby amended to include new Sections 4.07, 4.08,
4.09, 4.10, 4.11 and 4.12 as set forth below:

          Section 4.07. Further Instruments and Acts. Upon request of the Trustee as necessary,
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.

          Section 4.08. Maintenance of Office or Agency. The Company shall maintain an office or
agency of the Trustee, Registrar, Paying Agent and Conversion Agent where Securities may be
presented or surrendered for payment, where Securities may be surrendered for registration of
transfer, exchange, purchase, redemption or conversion and where notices and demands to or upon the
Company in respect of the Securities and this Indenture may be served. The Trustee’s office
located at The Bank of New York, 101 Barclay Street — 4E, New York, NY 10286 shall initially be
such office for all of the aforesaid purposes. The Company shall give prompt written notice to the
Trustee of the location, and of any change in the location, of any such office or agency (other
than a change in the location of the office of 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
address of the Trustee set forth in Section 13.02. The Company may also from time to time
designate one or more other offices or agencies where the Securities may be presented or
surrendered for any or all such purposes and may from time to time rescind such designations;
provided, however, that no such designation or rescission shall in any manner relieve the Company
of its obligation to maintain an office or agency for such purposes.

          Section 4.09. Existence. Except as permitted under Article V, the Company shall do or
cause to be done all things necessary to preserve and keep in full force and effect its corporate
existence, rights (by Articles of Incorporation, Bylaws and statute) and franchises; provided,
however, that the Company shall not be required to preserve any right or franchise if its Board of
Directors determines that the preservation thereof is no longer desirable in the conduct of its
business.

          Section 4.10. Maintenance of Properties. The Company shall cause all of its material
properties used or useful in the conduct of its business or the business or any Subsidiary to be
maintained and kept in good condition, repair and working order and supplied with all necessary
equipment and will cause to be made all necessary repairs, renewals, replacements, betterments and
improvements thereof, all as in the judgment of the Company may be

15

 

necessary so that the business carried on in connection therewith may be properly and
advantageously conducted at all times; provided, however, that the Company and its Subsidiaries
shall not be prevented from selling or otherwise disposing of their properties for value in the
ordinary course of business.

          Section 4.11. Insurance. The Company shall cause each of its and its Subsidiaries’
insurable properties to be insured against loss or damage with insurers of recognized
responsibility in such amounts, if any, as deemed appropriate in the judgment of the Board of
Directors.

          Section 4.12. Payment of Taxes and Other Claims. The Company shall pay or discharge
or cause to be paid or discharged, before the same shall become delinquent, (i) all taxes,
assessments and governmental charges levied or imposed upon it or any Subsidiary or upon income,
profits or property of the Company or any Subsidiary and (ii) all lawful claims for labor,
materials and supplies which, if unpaid, might by law become a lien upon the property of the
Company or any Subsidiary; provided, however, that the Company shall not be required to pay or
discharge or cause to be paid or discharged any tax, assessment, charge or claim whose amount,
applicability or validity is being contested in good faith.

ARTICLE V

SUCCESSORS

     Article V shall be amended as set forth below.

          A. Sections 5.01 and 5.02 of the Base Indenture are hereby deleted and replaced in their
entireties as set forth below:

          Section 5.01. When the Company May Merge or Transfer Assets. The Company may, without
the consent of the Holders of any Securities, consolidate with or merge with or into any other
Person or convey, transfer or lease its properties and assets substantially as an entirety to any
Person, if:

     (i) (1) the Company is the resulting or surviving corporation or (2) the
successor, transferee or lessee (if other than the Company) (a) is a corporation or
limited liability company organized and validly existing under the laws of the
United States or any State thereof or the District of Columbia, and (b) expressly
assumes, by an indenture supplemental hereto, executed and delivered to the Trustee,
in form satisfactory to the Trustee, all of the obligations of the Company under the
Securities and this Indenture; and

     (ii) immediately after giving effect to such transaction, no Event of Default
and no event that, with notice or lapse of time, or both, would constitute an Event
of Default, shall have occurred and be continuing; and

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

     (iv) except as provided above, the Company shall not consolidate with or merge with or into
any other Person or convey, transfer or lease its properties and assets substantially as an
entirety to any Person.

          For purposes of the foregoing, upon any consolidation, merger or any conveyance, transfer or
lease of the properties and assets of one or more Subsidiaries (other than to the Company or
another Subsidiary), which, if such assets were owned by the Company would constitute the
properties and assets of the Company substantially as an entirety shall be deemed to be the
transfer of the properties and assets of the Company substantially as an entirety. The successor
Person formed by such consolidation or into which the Company is merged or the successor Person to
which

16

 

such conveyance, transfer or lease is made shall succeed to, and (except in the case of a
lease) be substituted for, exercise every right and power of, the Company under this Indenture with
the same effect as if such successor had been named as the Company herein; and thereafter, except
in the case of a lease of the properties and assets of the Company substantially as an entirety,
the Company shall be discharged from all obligations and covenants under this Indenture and the
Securities. Subject to Section 9.06, the Company, the Trustee and the successor Person shall enter
into a supplemental indenture to evidence the succession and substitution of such successor Person
and such discharge and release of the Company, as applicable.

ARTICLE VI

DEFAULTS AND REMEDIES

     Article VI shall be amended as set forth below.

          A. Sections 6.01 and 6.02 of the Base Indenture are hereby deleted and replaced in their
entireties as set forth below:

          Section 6.01. Events of Default. Subject to the provisions set forth below in this
Section 6.01, each of the following events is an “Event of Default”:

          (a) the failure to pay interest on any Securities when the same becomes due and payable and
such Default continues for a period of 30 days;

          (b) the failure to pay the principal of any Securities, when such principal becomes due and
payable, at maturity, upon acceleration, upon redemption or otherwise (including the failure to
make a payment to repurchase the Securities at the option of Holders pursuant to a Fundamental
Change or the failure to repurchase the Securities at the option of the Holders on March 15, 2013,
2015, 2018 or 2023);

          (c) the failure to pay the Principal Portion in cash and the excess, if any, of the Conversion
Value over the Principal Portion in cash, shares of Common Stock or a combination thereof, owing
upon conversion of the Securities (including Additional Shares) within 10 Business Days of the time
period required by this Indenture;

          (d) the failure to provide a Fundamental Change Notice in accordance with the terms of Section
12.02(b) hereof;

          (e) the failure to observe or perform or a breach of any other covenant or agreement contained
in this Indenture that continues for a period of 60 days after the Company receives written notice
specifying the Default (and demanding that such Default be remedied) from the Trustee or the
Holders of at least 25% of the outstanding principal amount of the Securities (except in the case
of a Default with respect to Section 5.01, which will constitute an Event of Default with such
notice requirement but without such passage of time requirement);

          (f) the failure to pay at final maturity (giving effect to any applicable grace periods and
any extensions thereof) the principal amount of any Indebtedness of the Company or any Subsidiary
of the Company, or the acceleration of the final stated maturity of any such Indebtedness if the
aggregate principal amount of such Indebtedness after a default thereunder, together with the
principal amount of any other such Indebtedness in default for failure to pay principal at final
maturity or that has been accelerated, aggregates $25.0 million or more at any time;

          (g) one or more judgments in an aggregate amount in excess of $25.0 million shall have been
rendered against the Company or any of its Subsidiaries and remain undischarged, unpaid or unstayed
for a period of 60 days after such judgment or judgments become final and nonappealable;

          (h) the Company or any of its Significant Subsidiaries pursuant to or under or within the
meaning of any Bankruptcy Law:

               (i) commences a voluntary case or proceeding;

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               (ii) consents to the entry of an order for relief against it in an involuntary
case or proceeding;

               (iii) consents to the appointment of a custodian of it or for all or
substantially all of its property;

               (iv) makes a general assignment for the benefit of its creditors; or

               (v) shall generally not pay its debts when such debts become due or shall admit
in writing its inability to pay its debts generally; or

          (i) a court of competent jurisdiction enters an order or decree under any Bankruptcy
Law that:

               (i) is for relief against the Company or any Significant Subsidiary of the
Company in an involuntary case or proceeding;

               (ii) appoints a custodian of the Company or any Significant Subsidiary of the
Company for all or substantially all of its properties;        or

               (iii) orders the liquidation of the Company or any Significant Subsidiary of
Company;

               (iv) and in each case the order or decree remains unstayed and in effect for 60
consecutive days.

          The Events of Default described in clauses (f), (g), (h) and (i) above with respect to a
Subsidiary shall not apply if such Person was not a Subsidiary at the time such event or condition
occurred unless, in the case of clause (f) or (g) above, the Company or another Subsidiary thereof
assumes or otherwise becomes liable for the liability referred to therein or the liabilities
generally of such Person.

          Section 6.02. Acceleration.

          (a) If an Event of Default (other than an Event of Default specified in clause (h) or (i) of
Section 6.01 with respect to the Company) shall occur and be continuing, the Trustee may, and at
the request of the Holders of at least 25% in principal amount of outstanding Securities shall,
declare the principal of and accrued interest on all the Securities to be due and payable by notice
in writing to the Company. Such notice shall specify the respective Event of Default and that it
is a “notice of acceleration.” Upon the giving of such notice, the principal of and accrued but
unpaid interest on all Securities shall become immediately due and payable. If an Event of Default
specified in clause (h) or (i) of Section 6.01 occurs and is continuing with respect to Company,
then all unpaid obligations for principal, premium, if any, and accrued but unpaid interest on all
of the outstanding Securities shall become and be immediately due and payable without any
declaration or other act on the part of the Trustee or any Holder.

          (b) Notwithstanding the foregoing, at the election of the Company, the sole remedy of Holders
for an Event of Default relating any obligations that the Company may have or is deemed to have
pursuant to Section 4.02 of this Indenture or Section 314(a)(1) of the Trust Indenture Act, shall
for the first 120 calendar days after the occurrence of such an Event of Default consist
exclusively of the right (the “Extension Right”) to receive additional interest on the Securities
at a rate equal to 0.25% per annum of the principal amount of the Securities (the “Additional
Interest”). If the Company elects to pay the Additional Interest as the sole remedy for such Event
of Default, the Company shall notify the Holders and the Trustee and Paying Agent of such election
prior to the first Business Day following the date on which such Event of Default occurs. Upon the
Company’s failure to give such notice or to pay the Additional Interest when due, the Securities
shall be subject to acceleration as provided in clause (a) above. On the 121st calendar
day after such Event of Default occurs, if such Event of Default is not cured or waived prior to
such 121st calendar day, the Securities shall be subject to acceleration as provided in clause (a)
above. In the event the Company does not elect to pay the Additional Interest upon any such Event
of Default in accordance with this clause (b), the Securities shall be subject to acceleration as
provided in clause (a) above.

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          (c) Notwithstanding the foregoing paragraph, if an Event of Default occurs under any series of
the Company’s debt securities (other than the Securities) issued subsequent to the Issue Date
resulting from the Company’s failure to comply with obligations similar to those contained in
Section 4.02 or the requirements of Section 314(a)(1) of the Trust Indenture Act, and such Event of
Default is not subject to extension on terms similar to those set forth in the foregoing paragraph,
then the Extension Right shall no longer apply and the Securities shall be subject to acceleration
as provided in clause (a) above.

          (d) At any time after a declaration of acceleration with respect to the Securities as
described in the preceding paragraph, the Holders of a majority in aggregate principal amount of
the Securities may rescind and cancel such declaration and its consequences (i) if the rescission
would not conflict with any judgment or decree, (ii) if all existing Events of Default have been
cured or waived except nonpayment of principal or interest that has become due solely because of
such acceleration and (iii) if interest on overdue installments of interest (to the extent the
payment of such interest is lawful) and on overdue principal, which has become due otherwise than
by such declaration of acceleration, has been paid. No such rescission shall affect any subsequent
Default or impair any rights arising from a subsequent Default.

          B. Section 6.04 is hereby amended to include at the end of such Section 6.04 the following:

          This Section 6.04 shall be in lieu of Section 316(a)(1)(B) of the TIA and such Section
316(a)(1)(B) is hereby expressly excluded from this Indenture, as permitted by the TIA.

          C. Section 6.05 is hereby amended to include at the end of such Section 6.05 the following:

          This Section 6.05 shall be in lieu of Section 316(a)(1)(A) of the TIA and such Section
316(a)(1)(A) is hereby expressly excluded from this Indenture, as permitted by the TIA.

          D. Section 6.06 of the Base Indenture is hereby amended to delete the last paragraph of such
Section 6.06.

          E. Section 6.10 of the Base Indenture is hereby deleted and replaced in its entirety as set
forth below:

          Section 6.10 Priorities. If the Trustee collects any money pursuant to this Article
VI, it shall pay out the money in the following order:

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

          SECOND: to Holders for amounts due and unpaid on the Securities and for any accrued but unpaid
interest amounts due in respect of the Securities, ratably, without preference or priority of any
kind, according to such amounts due and payable on the Securities; and

          THIRD: the balance, if any, to the Company.

          The Trustee may fix a record date and payment date for any payment to Holders pursuant to this
Section 6.10. At least 15 days before such record date, the Trustee shall mail to each
Securityholder and the Company a notice that states the record date, the payment date and the
amount to be paid.

          F. Section 6.11 of the Base Indenture is hereby deleted and replaced in its entirety as set
forth below:

          Section 6.11. Undertaking for Costs. In any suit for the enforcement of any right or
remedy under this Indenture or in any suit against the Trustee for any action taken or omitted by
it as a Trustee, a court in its discretion may require the filing by any litigant in the suit of an
undertaking to pay the costs of the suit, and the court in its discretion may assess reasonable
costs, including reasonable attorneys’ fees and expenses, against any party litigant in the suit,
having due regard to the merits and good faith of the claims or defenses made by the party
litigant. This Section does not apply to a suit by the Trustee, a suit by a Holder pursuant to
Section 6.07, or a suit by Holders of more than 10% in principal amount of the then outstanding
Securities.

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ARTICLE VII

TRUSTEE

     Article VII shall be amended as set forth below.

          A. Section 7.02 is hereby amended to include new clauses (e) through (k) as set forth below:

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

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

          (g) The Trustee shall not be bound to make any investigation into the facts or matters stated
in any resolution, certificate, statement, instrument, opinion, report, notice, request, direction,
consent, order, bond, debenture, note, other evidence of indebtedness or other paper or document,
but the Trustee, in its discretion, may make such further inquiry or investigation into such facts
or matters as it may see fit, and, if the Trustee shall determine to make such further inquiry or
investigation, it shall be entitled to examine the books, records and premises of the Company,
personally or by agent or attorney at the sole cost of the Company and shall incur no liability or
additional liability of any kind by reason of such inquiry or investigation.

          (h) The Trustee shall not be liable for any action taken, suffered, or omitted to be taken by
it in good faith and reasonably believed by it to be authorized or within the discretion or rights
or powers conferred upon it by this Indenture.

          (i) In no event shall the Trustee be responsible or liable for special, indirect, or
consequential loss or damage of any kind whatsoever (including, but not limited to, loss of profit)
irrespective of whether the Trustee has been advised of the likelihood of such loss or damage and
regardless of the form of action.

          (j) The Trustee shall not be deemed to have notice of any Default or Event of Default unless a
Responsible Officer of the Trustee has actual knowledge thereof or unless written notice of any
event which is in fact such a default is received by the Trustee at the Corporate Trust Office of
the Trustee, and such notice references the Securities and this Indenture.

          (k) The rights, privileges, protections, immunities and benefits given to the Trustee,
including, without limitation, its right to be indemnified, are extended to, and shall be
enforceable by, the Trustee in each of its capacities hereunder, and each agent, custodian and
other Person employed to act hereunder.

          B. Section 7.06 of the Base Indenture is hereby amended to: (i) change the information in the
second paragraph “(which shall be October 31 of each year)” to “(which shall be May 15 of each
year)” and (ii) delete the third paragraph and replace it in its entirety as set forth below:

          A copy of each report at the time of its mailing to Securityholders shall be filed with the
SEC by the Company and each stock exchange on which the Securities are listed. The Company shall
notify the Trustee when the Securities are listed on any stock exchange or any delisting thereof.

          C. Section 7.07 of the Base Indenture is hereby deleted and replaced in its entirety as set
forth below:

          Section 7.07. Compensation and Indemnity. The Company shall pay to the Trustee from
time to time reasonable compensation for its services hereunder. The Trustee’s compensation shall
not be limited by any law on compensation of a trustee of an express trust. The Company shall
reimburse the Trustee upon request for all reasonable expenses incurred by it. Such expenses may
include the reasonable compensation and expenses of the Trustee’s agents and counsel.

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          The Company shall fully indemnify the Trustee and its officers, directors, agents and
employees against any loss, claim, damage, expense or liability incurred by it except as set forth
in the next paragraph. The Trustee shall notify the Company promptly of any claim of which a
Corporate Trust Officer has received written notice for which it may seek indemnity. The Company
shall defend the claim and the Trustee shall cooperate in the defense. The Trustee may have
separate counsel and the Company shall pay the reasonable fees and expenses of such counsel. The
Company need not pay for any settlement made without its consent, which consent shall not be
unreasonably withheld.

          The Company need not reimburse any expense or indemnify against any loss or liability
determined to have been caused by the Trustee through its own negligence or willful misconduct.

          To secure the Company’s payment obligations in this Section, the Trustee shall have a lien
prior to the Securities on all money or property held or collected by the Trustee.

          When the Trustee incurs expenses or renders services after an Event of Default specified in
Section 6.01(h) and (i) occurs, the expenses and the compensation for the services are intended to
constitute expenses of administration under any bankruptcy, insolvency or other similar law.

          The provisions of this Section shall survive the termination of this Indenture and the
resignation or removal of the Trustee.

          E. The last paragraph of Section 7.08 of the Base Indenture is hereby amended to delete the
fourth sentence and replace it in its entirety as set forth below:

          The retiring Trustee shall, upon payment of its charges hereunder, promptly transfer all
property held by it as Trustee to the successor Trustee, subject to the lien provided for in this
Section 7.07.

ARTICLE VIII

DISCHARGE OF INDENTURE

     Article VIII shall be amended as set forth below.

          A. Sections 8.01 through 8.04 of the Base Indenture are hereby deleted in their entireties
and all references thereto contained elsewhere in the Indenture shall also be deemed to be deleted
in their entireties.

          B. Article VIII of the Base Indenture is hereby amended to include new Sections 8.01 and 8.02
as set forth below:

          Section 8.01 Discharge of Liability on Securities. When (i) the Company delivers to
the Trustee all outstanding Securities (other than Securities replaced pursuant to Section 2.07)
for cancellation or (ii) all outstanding Securities have become due and payable and the Company
deposits with the Trustee cash and shares of Common Stock, if any, sufficient to pay all amounts
due and owing on all outstanding Securities (other than Securities replaced pursuant to Section
2.07), and if in either case the Company pays all other sums payable hereunder by the Company, then
this Indenture shall, subject to Section 7.07, cease to be of further effect. The Trustee shall
join in the execution of a document prepared by the Company acknowledging satisfaction and
discharge of this Indenture on demand at the cost and expense of the Company and accompanied by an
Officers’ Certificate and Opinion of Counsel.

          Section 8.02 Repayment to the Company. The Trustee and the Paying Agent shall return
to the Company upon written request any money held by them for the payment of any amount and any
shares of Common Stock with respect to the Securities that remain unclaimed for two years, subject
to applicable unclaimed property law. After return to the Company, as applicable, Holders entitled
to the money or shares of Common Stock must look to the Company for payment as general creditors
unless an applicable abandoned property law designates another person and

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the Trustee and the Paying Agent shall have no further liability to the Holders with respect
to such money or shares of Common Stock for that period commencing after the return thereof.

ARTICLE IX

AMENDMENTS

     Article IX shall be amended as set forth below.

          A. Article IX is hereby deleted and replaced in its entirety as set forth below:

          Section 9.01. Without Consent of Holders. The Company and the Trustee may amend or
supplement this Indenture or the Securities without notice to or consent of any Securityholder:

          (a) to cure any ambiguity, omission, defect or inconsistency;

          (b) to make any other change that does not adversely affect in any material respect the rights
of any Securityholder;

          (c) to make provisions with respect to the conversion rights of the Holders pursuant to the
requirements of Section 10.08(d) and Section 10.01;

          (d) to evidence the assumption of the obligations of the Company by a successor Person under
this Indenture and the Securities;

          (e) to comply with the provisions of the TIA, or with any requirement of the SEC arising as a
result of the qualification of this Indenture or any supplemental indenture under the TIA;

          (f) to add covenants or Events of Default for the benefit of the Holders;

          (g) to evidence acceptance of appointment by a successor Trustee;

          (h) to surrender any of the Company’s rights or powers under this Indenture (including,
without limitation, its right to pay part of the Repurchase Price of the Securities with shares of
Common Stock as provided for in this Indenture occurring on a date after the date of such
amendment);

          (i) to add guarantees with respect to the Securities or to secure the Securities; or

          (j) to conform this Indenture and the form or terms of the Securities in Exhibit A to the
section “Description of the Notes” as set forth in the Prospectus Supplement, dated March 13, 2008.

          Section 9.02. With Consent of Holders.

          The Company and the Trustee may amend or supplement this Indenture or the Securities without
notice to any Securityholder but with the written consent of the Holders of a majority in aggregate
principal amount of the Securities then outstanding. The Holders of a majority in aggregate
principal amount of the Securities then outstanding may waive compliance by the Company with
restrictive provisions of this Indenture other than as set forth in this Section 9.02 below, and
may waive any past Default under this Indenture and its consequences, except a Default in the
payment of amounts due in respect of any Security or in respect of a provision which under this
Indenture cannot be modified or amended without the consent of the Holder of each outstanding
Security affected.

          Subject to Section 9.04, without the written consent of each Securityholder affected, however,
an amendment, supplement or waiver, including a waiver pursuant to Section 6.04, may not:

          (a) change the Stated Maturity of the principal of, or any payment date of any installment of
interest, if any, on, any Security;

22

 

          (b) reduce the principal amount or Redemption Price of, or the rate of interest, on, any
Security, whether upon acceleration, redemption or otherwise;

          (c) change the currency in which the principal of any Security, or interest, is payable or
adversely affect the price or ratio at which Common Stock may be substituted for currency in
connection with any payments made;

          (d) impair the right to institute suit for the enforcement of any payment on or with respect
to any Security when due;

          (e) adversely affect in any material respect the conversion rights provided in Article X;

          (f) modify in any material respect the provisions of this Indenture requiring the Company to
make an offer to repurchase Securities;

          (g) reduce the percentage of principal amount of the outstanding Securities necessary to
modify or amend this Indenture or to consent to any waiver provided for in this Indenture;

          (h) waive a Default in the payment of any amount or shares of Common Stock with respect to any
Security when due; or

          (i) make any changes in Section 6.04, Section 6.07 or this Section 9.02.

          It shall not be necessary for the consent of the Holders under this Section 9.02 to approve
the particular form of any proposed amendment, supplement or waiver, but it shall be sufficient if
such consent approves the substance thereof.

          After an amendment under this Section 9.02 becomes effective, the Company shall mail to each
Holder a notice briefly describing the amendment. Failure to mail the notice or a defect in the
notice shall not affect the validity of the amendment.

          Section 9.03 Compliance with Trust Indenture Act. Every supplemental indenture
executed pursuant to this Article shall comply with the TIA.

          Section 9.04 Revocation and Effect of Consents. Until an amendment, waiver or other
action by Holders becomes effective, a consent thereto by a Holder of a Security hereunder is a
continuing consent by the Holder and every subsequent Holder of that Security or portion of the
Security that evidences the same obligation as the consenting Holder’s Security, even if notation
of the consent, waiver or action is not made on the Security. However, unless otherwise agreed in
writing by such Holder or a predecessor Holder any such Holder or subsequent Holder may revoke the
consent, waiver or action as to such Holder’s Security or portion of the Security if the Trustee
receives the notice of revocation before the date the amendment, waiver or action becomes
effective. After an amendment, waiver or action becomes effective, it shall bind every
Securityholder.

          Section 9.05 Notation on or Exchange of Securities. Securities authenticated and
delivered after the execution of any supplemental indenture pursuant to this Article IX may, and
shall if required by the Trustee, bear a notation in form approved by the Trustee as to any matter
provided for in such supplemental indenture. If the Company shall so determine, new Securities so
modified as to conform, in the opinion of the Trustee and the Board of Directors of the Company, to
any such supplemental indenture may be prepared and executed by the Company and authenticated and
delivered by the Trustee in exchange for outstanding Securities.

          Section 9.06 Trustee to Sign Supplemental Indentures. The Trustee shall sign any
supplemental indenture authorized pursuant to this Article IX if the amendment contained therein
does not, in the sole determination of the Trustee, adversely affect the rights, duties, powers,
privileges, benefits, indemnities, liabilities or immunities of the Trustee. If it does, the
Trustee may, but need not, sign such supplemental indenture. In signing such supplemental
indenture the Trustee shall be provided with, and (subject to the provisions of Section 7.01) shall
be fully protected in

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relying upon, an Officers’ Certificate and an Opinion of Counsel stating that such amendment
is authorized or permitted by this Indenture.

          Section 9.07 Effect of Supplemental Indentures. Upon the execution of any
supplemental indenture under this Article IX, this Indenture shall be modified in accordance
therewith, and such supplemental indenture shall form a part of this Indenture for all purposes,
and every Holder of Securities theretofore or thereafter authenticated and delivered hereunder
shall be bound thereby.

ARTICLE X

CONVERSION

     Article X of the Base Indenture is hereby deleted and replaced in its entirety as set forth
below:

          Section 10.01. Conversion Privilege. A Holder of Securities may
convert such Securities, in whole or in part, (x) during the three-month periods prior to each of
March 15, 2013, March 15, 2015, March 15, 2018, March 15, 2023 and March 15, 2028 (beginning on the
same date in the third month preceding such date), ending on the close of business on the Business
Day immediately prior to each such date and (y) other than during the three-month periods, only in
the circumstances and to the extent specified in clauses (a) through (f) below:

          (a) during any calendar quarter (a “Quarter”) commencing after the original issuance of the
Securities, if the Common Stock Price for at least 20 Trading Days in the period of 30 consecutive
Trading Days ending on the last Trading Day of the Quarter immediately preceding such Quarter in
which the conversion occurs (appropriately adjusted to take into account the occurrence, during
such 20 Trading Day period, of any event requiring adjustment of the Conversion Price under this
Indenture) is more than 130% of the Conversion Price in effect on such last Trading Day;

          (b) the Security has been called for redemption by the Company pursuant to Section 3.01
hereof, at any time prior to the close of business on the day that is two Business Days prior to
the Redemption Date for such Securities;

          (c) the conversion of such Security occurs during the five consecutive Trading Day period
immediately after any period of five consecutive Trading Days in which the Security Trading Price
for each Trading Day in such period was less than 95% of the product of the Common Stock Price on
such Trading Day multiplied by the Conversion Rate in respect of the Securities on each such
Trading Day;

          (d) at any time after the Company gives notice to Holders of Securities (with a copy to the
Trustee and the Conversion Agent) of any election by it to distribute to all, or substantially all,
holders of Common Stock:

     (A) any rights, warrants or options entitling such holders of the Common
Stock to subscribe for or purchase, for a period expiring within 60 days of
the date of distribution, shares of Common Stock at an exercise price less
than the current Common Stock Price on the date such distribution is
announced, or

     (B) any assets (including cash), debt securities or rights to purchase
the Company’s securities, which distribution has a per share value exceeding
10% of the Common Stock Price on the Trading Day preceding the date such
distribution is announced,

in each case, until the earlier of the close of business on the Business Day prior to the
Ex-Dividend Date for such distribution or the Company’s announcement that such distribution will
not take place, provided that no Holder may exercise this right to convert if such Holder may
participate in the distribution without conversion;

          (e) if the Company is party to a consolidation, merger, binding share exchange, combination,
or a conveyance, transfer, sale, lease or other disposition of all or substantially all of its
assets or other similar transaction

24

 

that does not also constitute a Fundamental Change (if such transaction also constitutes a
Fundamental Change, in lieu of the conversion rights described in this clause (e), Holders shall
have the conversion right described in clause (f) below), in each case pursuant to which the shares
of Common Stock would be converted into cash, securities or other property or assets at any time
from and after the date that is 25 Trading Days prior to the date of the anticipated effective date
of such transaction until and including the date that is 15 days after the actual effective date of
such transaction; provided, however, that if such conversion occurs on or after the effective date
of such transaction, the Holder shall receive on conversion the consideration determined in
accordance with Section 10.08(d); or

          (f) if a Fundamental Change occurs, regardless of whether a Holder has the right to require
the Company to repurchase the Securities as described in Article XII, at any time from or after the
date that is 20 Trading Days prior to the anticipated effective date of the Fundamental Change
until the close of trading on the second scheduled Trading Day immediately preceding the
Fundamental Change Repurchase Date.

          In the case of the foregoing clause (a), if as a result of the Common Stock Price the
Securities are convertible pursuant to such clause the Company shall promptly notify the Trustee,
the Conversion Agent and the Holders.

          In the case of the foregoing clause (c), the Trustee shall have no obligation to determine the
Security Trading Price unless the Company has requested such a determination; and the Company shall
have no obligation to make such request unless a Holder provides it with reasonable evidence that
the Security Trading Price would be less than 95% of the product of the Common Stock Price on such
Trading Day multiplied by the Conversion Rate. If such evidence is provided, the Company shall
instruct the Trustee to determine the Security Trading Price of the Securities beginning on the
next Trading Day and on each successive Trading Day until the Security Trading Price is greater
than or equal to 95% of the product of the Common Stock Price on such Trading Day multiplied by the
Conversion Rate; provided that the Trustee shall be under no duty or obligation to make the
calculations described in the foregoing clause (c) or to determine whether the Securities are
convertible pursuant to such section. The Company shall make the calculations described in the
foregoing clause (c), using the Security Trading Price provided by the Trustee.

          The Trustee shall be entitled at its sole discretion to consult with the Company and to
request the assistance of and rely upon the Company in connection with the Trustee’s duties and
obligations pursuant to the foregoing clause (c) (including without limitation the calculation or
determination of the Security Trading Price), and the Company agrees, if requested by the Trustee,
to cooperate with, and provide assistance to, the Trustee in carrying out its duties under the
foregoing clause (c).

          In the case of the foregoing clause (d), the Company shall cause a notice of such distribution
to be filed with the Trustee and the Conversion Agent and to be mailed to each Holder of Securities
at its address appearing on the list provided for in Section 2.05, at least 20 Trading Days prior
to the Ex-Dividend Date for such distribution.

          In the case of the foregoing clause (f), to the extent practicable, the Company shall notify
Holders of the Securities of the anticipated effective date of the Fundamental Change not less than
25 Trading Days prior to the anticipated effective date. In the case of a transaction described in
clause (e), to the extent applicable, the Company shall notify Holders of Securities and the
Trustee at least 25 Trading Days prior to the anticipated effective date of such transaction.

          Provisions of this Indenture that apply to conversion of all of a Security also apply to
conversion of a portion of a Security.

          If a Security is called for redemption pursuant to Article III, the right to convert such
Security shall terminate at the close of business on the second Business Day before the Redemption
Date for such Security.

          Notwithstanding the foregoing, a Security in respect of which a Holder has delivered a
Repurchase Notice pursuant to Section 12.01(a)(i) or a Fundamental Change Repurchase Notice
pursuant to Section 12.02(c) exercising the option of such Holder to require the Company to
repurchase such Security may be converted only if such Repurchase Notice or Fundamental Change
Repurchase Notice, as the case may be, is withdrawn by a written notice of withdrawal delivered to
the Paying Agent prior to 5:00 p.m. (New York City time) on the second Business Day before the
Repurchase Date or the Fundamental Change Repurchase Date, as the case may be, in accordance with
Section 12.03.

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          10.02. Conversion Consideration.

          (a) Subject to the qualifications and the satisfaction of the conditions and during the
periods described in Section 10.01, Holders shall be entitled to convert their Securities in
denominations of $1,000 principal amount or integral multiples thereof based upon a conversion rate
of 176.0254 shares of Common Stock per $1,000 principal amount of Securities, which will be subject
to adjustments as described in Section 10.07, but will not be adjusted for accrued interest (the
“Conversion Rate”). The “Conversion Price” at any given time is equal to the $1,000 principal
amount of a Security divided by the Conversion Rate and initially shall be approximately $5.68 per
share. Upon conversion, the Company shall pay an amount in cash equal to the Principal Portion of
the Securities tendered for conversion and the excess, if any, of the Conversion Value over the
Principal Portion in cash, shares of Common Stock or a combination thereof, at the Company’s
election.

          (b) Except as described in clause (b)(iv) of this Section 10.02, if the Company receives any
Conversion Notice on or prior to the date that is 22 scheduled Trading Days immediately preceding
the Stated Maturity (the “Final Notice Date”), the following procedures shall apply:

     (i) If the Company elects to satisfy all or any portion of its conversion obligation in
excess of the Principal Portion in cash, the Company shall notify Holders through the
Trustee of the dollar amount to be satisfied in cash (which must be expressed either as 100%
of the Conversion Value or as a fixed dollar amount) at any time on or before the date that
is two Business Days following the Conversion Date. A Conversion Notice shall be
irrevocable.

     (ii) Settlement of the Company’s conversion obligation with respect to any Securities
tendered for conversion (whether in cash, shares or a combination thereof) shall occur on
the third Business Day following the expiration of the Conversion Settlement Averaging
Period.

     (iii) Notwithstanding the foregoing clauses (i) and (ii), if a Holder surrenders a
Security for conversion in connection with a Qualifying Fundamental Change, the Company
shall deliver any related additional conversion consideration after the corresponding QFC
Effective Date even if the settlement date in respect of the other conversion consideration
occurs earlier and, as a result, the total conversion consideration may be delivered in two
payments rather than one.

     (iv) With respect to Conversion Notices that the Company receives after the Final
Notice Date or after the Company has issued a notice of redemption and prior to the
Redemption Date:

     (A) if the Company elects to satisfy the excess of the Conversion Value
over the Principal Portion in cash with respect to such conversions, the
Company shall not send individual notices informing Holders of such election
as described in clause (b)(i) of this Section 10.02, but rather the Company
shall send a single notice to Holders (which may be included in the notice of
redemption, if applicable) indicating the dollar amount to be satisfied in
cash (which must be expressed either as 100% of the conversion obligation or
as a fixed dollar amount) as soon as practicable;

     (B) the Settlement Amounts shall be computed and settlement dates shall
be determined in the same manner as set forth in this Section 10.02; and

     (C) Conversion Notices shall be irrevocable.

     (v) Upon conversion of any Securities, the Settlement Amounts to be delivered to the
surrendering Holders will be computed as follows:

     (A) If the Company elects to satisfy its entire conversion obligation in
cash, for each $1,000 principal amount of Securities surrendered for
conversion, the Company shall deliver cash in an amount equal to the
Conversion Value.

26

 

     (B) Unless the Company elects settlement in cash as described in clause
(b)(i) of this Section 10.02, the Company shall deliver to Holders, for each
$1,000 principal amount of Securities surrendered for conversion: (1) cash in
any amount the Company shall specify equal to or greater than $1,000 (the
“Specified Cash Amount”), provided that if the Specified Cash Amount exceeds
the Conversion Value, then the Company shall settle its conversion obligation
entirely in cash so that the cash paid shall equal the Conversion Value as in
clause (A) above; and (2) a number of shares of Common Stock equal to the
greater of (i) zero and (ii) the sum of the excess, if any, for each of the
20 Trading Days in the Conversion Settlement Averaging Period of (a) the
Daily Share Amount, less (b) the number of shares of Common Stock equal to
the quotient of (x) one-twentieth (1/20th) of the Specified Cash Amount
divided by (y) the Daily VWAP of the Common Stock on such Trading Day.

          The “Settlement Amount” is, upon the surrender of any Securities for conversion in accordance
with the terms hereof, the amount of cash and/or shares of Common Stock the Company is required to
deliver to the surrendering Holder, through the Conversion Agent, pursuant to subclause (A) or (B)
of this Section 10.02(b)(v), as applicable.

          The “Conversion Value” means, for each $1,000 principal amount of Securities surrendered for
conversion, the sum of the Daily Conversion Values for each of the 20 Trading Days of the
Conversion Settlement Averaging Period.

          The “Conversion Settlement Averaging Period” means, with respect to any Securities surrendered
for conversion, the 20-consecutive-Trading-Day period beginning (x) on the Redemption Date, if
prior to the relevant Conversion Date the Company has called for redemption the Securities that are
being converted, (y) on the 20th Trading Day immediately preceding the Stated Maturity for
Securities that are converted during the period beginning on the 22nd Trading Day prior to the
Stated Maturity, and (z) in all other instances, on the Trading Day after the second Business Day
following the Conversion Date.

          The “Daily Conversion Value” means, for each Trading Day during the Conversion Settlement
Averaging Period, for each $1,000 aggregate principal amount of Securities, one-twentieth (1/20th)
of the product of (x) the Conversion Rate and (y) the Daily VWAP of the Common Stock on such
Trading Day.

          The “Daily VWAP” per share of Common Stock (or any security that is part of the reference
property into which the Common Stock has been converted, if applicable) on any Trading Day means
the volume weighted average price on the principal exchange or over-the-counter market on which the
Common Stock (or other security) is then listed or traded, from 9:30 a.m. to 4:00 p.m. (New York
City time) on that Trading Day as displayed under the heading “Bloomberg VWAP” on Bloomberg Page
CDE <equity> (or the applicable page of any successor service or the Bloomberg Page for any
security that is part of the reference property into which the Common Stock has been converted, if
applicable) or if such volume weighted average price is not available (or the reference property in
question is not a security), the volume weighted average price of the shares of Common Stock, or
other reference property, shall be the market value per share of the Common Stock, or such other
reference property, on such day as determined by a nationally recognized independent investment
banking firm retained for this purpose by the Company, using a volume-weighted method. The Daily
VWAP shall be determined without regard to after hours trading or any other trading outside of the
regular trading hours.

          The “Daily Share Amount” means, for each of the 20 consecutive Trading Days during the
Conversion Settlement Averaging Period, for each $1,000 aggregate principal amount of Securities
surrendered for conversion, the number of shares of Common Stock equal to one-twentieth (1/20th) of
the Conversion Rate on such Trading Day.

          “Principal Portion” of each $1,000 aggregate principal amount of Securities means, for each
Trading Day during the Conversion Settlement Averaging Period, an amount in cash equal to the
lesser of (i) $50 and (ii) the Daily Conversion Value relating to such Trading Day.

          (c) To the extent a portion of the Company’s conversion obligation is settled in shares of
Common Stock, no fractional shares will be issued upon conversion; in lieu thereof, a Holder that
would otherwise be

27

 

entitled to fractional shares of Common Stock will receive a number of shares of Common Stock equal
to the aggregate of the fractional shares otherwise deliverable (rounding down to the nearest whole
number) and cash equal to the remainder multiplied by the Daily VWAP of the Common Stock on the
Conversion Date. The cash and any shares of Common Stock (including cash in lieu of fractional
shares) deliverable upon conversion of the Securities will be delivered through the Conversion
Agent, or, with respect to the shares of Common Stock, through the Company Stock Registrar at the
direction of the Conversion Agent or the Company.

          (d) If a Holder tenders Securities for conversion (and if applicable, the Daily Conversion
Value is being determined) at a time when the Securities are convertible into other property in
addition to or in lieu of Common Stock, the settlement amount will be determined based on the kind
and amount of stock, securities or other property or assets (including cash or any combination
thereof) that a holder of a number of shares of Common Stock equal to the Conversion Rate at such
time would have owned or been entitled to receive in such transaction (and, if applicable, the
value thereof for each applicable Trading Day during the Conversion Settlement Averaging Period).

          Section 10.03. Conversion Procedures. (a) To convert a Security, a Holder shall (i)
complete and manually sign the Conversion Notices or a facsimile of the Conversion Notices, a form
of which is on the back of the Security or may be obtained from the Conversion Agent (the
“Conversion Notice”), and deliver such Conversion Notice to the Conversion Agent, (ii) surrender
the Security to the Conversion Agent, (iii) if required by the Conversion Agent, furnish
appropriate endorsement and transfer documents, (iv) pay all transfer or similar taxes required to
be paid by such Holder pursuant to Section 10.05 and (v) if required pursuant to paragraphs 1 and 2
of the Securities, pay funds equal to interest payable on the next interest payment date. If a
Person’s interest is a beneficial interest in a Global Security, to convert, such Person shall
comply with requirements (i), (iii), (iv) and (v) above and comply with the Depositary’s procedures
for converting a beneficial interest into a Global Security. The date a Holder complies with all
of the applicable requirements is the “Conversion Date,” provided that if such Holder complies with
such requirements after 11:00 a.m. (New York City time) on such date then the Conversion Date shall
be the next succeeding Business Day.

          (b) Securities shall be deemed to have been converted immediately prior to the close of
business on the Conversion Date.

          (c) No payment or adjustment will be made for dividends on, or other distributions with
respect to, any Common Stock except as provided in Section 10.07 (a), (b), (c) and (d) below. Upon
conversion of a Security, a Holder will not receive any cash payment of interest unless such
conversion occurs between a record date and the interest payment date to which that record date
relates. The Company will not adjust the Conversion Rate to account for accrued and unpaid
interest.

          (d) Securities surrendered for conversion by a Holder after the close of business on any
regular record date but prior to the next interest payment date must be accompanied by payment of
an amount equal to the interest that shall be payable on the Securities; provided, however, that no
such payment need be made (i) if the Company has specified a Fundamental Change Repurchase Date
that is after a record date and on or prior to the next interest payment date, (ii) with respect to
any Securities surrendered for conversion following the record date for the payment of interest
immediately preceding the Stated Maturity, (iii) if the Company has specified a Redemption Date
that is after a record date and on or prior to the corresponding interest payment date, or (iv)
only to the extent of overdue interest, if any overdue interest exists at the time of conversion
with respect to such Security.

          (e) If the last day on which a Security may be converted is not a Business Day, the Security
may be surrendered on the next succeeding day that is a Business Day.

          (f) Provisions of this Indenture that apply to conversion of all of a Security also apply to
conversion of a portion of a Security. Upon surrender of a Security that is converted in part, the
Company shall execute, and the Trustee shall authenticate and deliver to the Holder, a new Security
or Securities in an authorized denomination equal in principal amount to the unconverted portion of
the Security surrendered.

          (g) Delivery of the Principal Portion in cash and the excess, if any, of the Conversion Value
over the Principal Portion in cash, shares of Common Stock or a combination thereof, at the
Company’s election, upon

28

 

conversion of a Security in accordance with the terms of the Securities shall be deemed to satisfy
the Company’s obligations with respect to such Security.

          Section 10.04. Adjustments Below Par Value. Before taking any action which would
cause an adjustment decreasing the Conversion Price so that the shares of Common Stock issuable
upon conversion of the Securities would be issued for less than the par value of such Common Stock,
the Company will take all corporate action which may be necessary in order that the Company may
validly and legally issue fully paid and nonassessable shares of such Common Stock at such adjusted
Conversion Price.

          Section 10.05. Taxes on Conversion. If a Holder converts a Security, the Company
shall pay any documentary, stamp or similar issue or transfer tax due on the issue of shares of
Common Stock upon such conversion. However, the Holder shall pay any such tax which is due because
the Holder requests the shares to be issued in a name other than the Holder’s name. The Conversion
Agent may refuse to deliver the certificates representing the Common Stock being issued in a name
other than the Holder’s name until the Conversion Agent receives a sum sufficient to pay any tax
which will be due because the shares are to be issued in a name other than the Holder’s name.
Nothing herein shall preclude any tax withholding required by law or regulations.

          Section 10.06. Company to Provide Stock.

          The Company shall, prior to issuance of any Securities hereunder, and from time to time as may
be necessary, reserve, out of its authorized but unissued Common Stock a sufficient number of
shares of Common Stock to permit the conversion of all outstanding Securities into shares of Common
Stock.

          The Company covenants that all shares of Common Stock delivered upon conversion of the
Securities shall be newly issued shares or treasury shares, shall be duly authorized, validly
issued, fully paid and non-assessable and shall be free from preemptive rights and free of any lien
or adverse claim.

          The Company will endeavor promptly to comply with all federal and state securities laws
regulating the offer and delivery of shares of Common Stock upon conversion of Securities, if any,
and will list or cause to have quoted such shares of Common Stock on each national securities
exchange or in the over-the-counter market or such other market on which the Common Stock is then
listed or quoted.

          Section 10.07. Adjustments. The Conversion Rate shall be subject to adjustment,
without duplication, upon the occurrence of any of the following events:

          (a) If, after the Issue Date of the Securities, the Company:

          (i) pays a dividend or makes another distribution payable in shares of Common Stock on the
Common Stock;

          (ii) subdivides the outstanding shares of Common Stock into a greater number of shares; or

          (iii) combines the outstanding shares of Common Stock into a smaller number of shares;

then the Conversion Rate in effect immediately prior to such action shall be adjusted based on the
following formula:

where

	 	 	 
	CR0 =

	 	the Conversion Rate in effect immediately prior to the
Ex-Dividend Date for such dividend or distribution, or
the effective date of such share split or share
combination;
	 
	 	 
	CR1 =

	 	the new Conversion Rate in effect immediately after the
Ex-Dividend Date for such dividend

29

 

	 	 	 
	 

	 	or distribution, or
the effective date of such share split or share
combination;
	 
	 	 
	OS0 =

	 	the number of shares of Common Stock outstanding
immediately prior to such Ex-Dividend Date or effective
date; and
	 
	 	 
	OS1 =

	 	the number of shares of Common Stock outstanding
immediately prior to such Ex-Dividend Date, or effective
date, but after giving effect to such dividend,
distribution, share split or share combination

          If any dividend or distribution described in this clause (a) is declared but not so paid or
made, the new Conversion Rate shall be readjusted to the Conversion Rate that would then be in
effect if such dividend or distribution had not been declared.

          (b) If, after the Issue Date of the Securities, the Company distributes to all, or
substantially all, holders of the Common Stock any rights, warrants or options entitling them, for
a period of not more than 60 days after the date of issuance thereof to subscribe for or to
purchase shares of Common Stock at an exercise price per share of Common Stock less than the
average of the Common Stock Prices of the Common Stock for each Trading Day in the
ten-consecutive-Trading-Day period ending on the Trading Day immediately preceding the time of
announcement of such issuance, the Conversion Rate shall be adjusted in accordance with the
following formula:

where

	 	 	 
	CR0 =

	 	the Conversion Rate in effect immediately prior to the
Ex-Dividend Date for such distribution;
	 
	 	 
	CR1 =

	 	the new Conversion Rate in effect immediately after the
Ex-Dividend Date for such distribution;
	 
	 	 
	OS0 =

	 	the number of shares of Common Stock outstanding
immediately prior to the Ex-Dividend Date for such
distribution;
	 
	 	 
	X    =
	 	the number of shares of Common Stock issuable pursuant to
such rights, warrants or options; and
	 
	 	 
	Y    =

	 	the number of shares of Common Stock equal to the
quotient of (A) the aggregate price payable to exercise
such rights, warrants or options and (B) the average of
the Common Stock Prices for each Trading Day in the
ten-consecutive-Trading Day period ending on the Trading
Day immediately preceding the date of announcement for
the issuance of such rights, warrants or options.

          For purposes of this clause (b), in determining whether any rights, warrants or options
entitle the holders thereof to subscribe for or purchase the Common Stock at less than the average
of the Common Stock Prices for each Trading Day in the applicable ten-consecutive-Trading Day
period, there shall be taken into account any consideration the Company receives for such rights,
warrants or options and any amount payable on exercise thereof, with the value of such
consideration, if other than cash, to be determined by the Board of Directors.

          If any right, warrant or option described in this clause (b) is not exercised prior to the
expiration of the exercisability thereof, the new Conversion Rate shall be readjusted to the
Conversion Rate that would then be in effect if such right, warrant or option had not been so
issued.

30

 

          (c) If, after the Issue Date of the Securities, the Company distributes to all, or
substantially all, holders of the Common Stock shares of Capital Stock, evidences of indebtedness
or other assets or property, excluding:

     (D) dividends, distributions, rights, warrants or options referred to in
clause (a) or clause (b) above;

     (E) dividends or distributions paid exclusively in cash; and

     (F) Spin-Offs described below in this clause (c),

then the Conversion Rate shall be adjusted based on the following formula:

where

	 	 	 
	CR0 =

	 	the Conversion Rate in effect immediately prior to the Ex-Dividend Date for such distribution;
	 
	 	 
	CR1 =

	 	the new Conversion Rate in effect immediately after the Ex-Dividend Date for such distribution;
	 
	 	 
	SP0 =

	 	the average of the Common Stock Prices for each Trading Day in the ten-consecutive-Trading-Day
period ending on the Trading Day immediately preceding the Ex-Dividend Date for such
distribution; and
	 
	 	 
	FMV =

	 	the fair market value (as determined in good faith by the Board of Directors) of the shares of
Capital Stock, evidences of indebtedness, assets or property distributed with respect to each
outstanding share of Common Stock on the earlier of the record date or the Ex-Dividend Date
for such distribution.

     With respect to an adjustment pursuant to this clause (c), where there has been a payment of a
dividend or other distribution to all, or substantially all, holders of shares of Common Stock of
shares of Capital Stock of any class or series, or similar equity interest, of or relating to any
Subsidiary or other business unit (a “Spin-Off”), the Conversion Rate in effect immediately before
the close of business on the effective date of the Spin-Off shall be adjusted based on the
following formula:

where

	 	 	 
	CR0 =

	 	The Conversion Rate in effect immediately prior to the effective date of the Spin-Off;
	 
	CR1 =

	 	The new Conversion Rate after the Spin-Off;
	 
	FMV0 =

	 	the average of the Common Stock Prices of Capital Stock or similar equity interest
(substituting for this purpose such Capital Stock or other similar equity interest
for Common Stock in the definition of Common Stock Price) distributed to holders of
Common Stock applicable to one share of Common Stock over the ten consecutive Trading
Days after, and including, the effective date of the Spin-Off; and
	 
	MP0 =

	 	the average of the Common Stock Prices over the ten consecutive Trading Days after,
and including, the effective date of the Spin-Off.

31

 

          An adjustment to the Conversion Rate made pursuant to the immediately preceding paragraph
shall occur on the 10th Trading Day from and including the effective date of the Spin-Off; provided
that in respect of any conversion within the ten Trading Days following, and including, the
effective date of any Spin-Off, references within this clause (c) to ten Trading Days shall be
deemed replaced with such lesser number of Trading Days as have elapsed between the effective date
of such Spin-Off and the Conversion Date in determining the Conversion Rate.

          If any such dividend or distribution described in this clause (c) is declared but not paid or
made, the new Conversion Rate shall be readjusted to be the Conversion Rate that would then be in
effect if such dividend or distribution had not been declared.

          (d) If, after the Issue Date of the Securities, the Company makes any cash dividend or
distribution to all, or substantially all, holders of Common Stock, the Conversion Rate shall be
adjusted based on the following formula:

where

	 	 	 
	CR0 =

	 	the Conversion Rate in effect immediately prior to the
Ex-Dividend Date for such dividend or distribution;
	 
	 	 
	CR1 =

	 	the new Conversion Rate in effect immediately after the
Ex-Dividend Date for such dividend or distribution;
	 
	 	 
	SP0 =

	 	the average of the Common Stock Prices for each Trading
Day in the ten-consecutive-Trading-Day period ending on
the Trading Day immediately preceding the Ex-Dividend
Date for such dividend or distribution; and
	 
	 	 
	C =

	 	the amount in cash per share that the Company dividends
or distributes to holders of its Common Stock.

          If any dividend or distribution described in this clause (d) is declared but not so paid or
made, the new Conversion Rate shall be readjusted to the Conversion Rate that would then be in
effect if such dividend or distribution had not been declared.

          (e) If, after the Issue Date of the Securities, the Company or any of its Subsidiaries makes a
payment in respect of a tender offer or exchange offer for the Common Stock, to the extent that the
cash and value of any other consideration included in the payment per share of Common Stock exceeds
the Common Stock Price on the Trading Day following the last date on which tenders or exchanges may
be made pursuant to such tender or exchange offer, the Conversion Rate shall be adjusted based on
the following formula:

where

	 	 	 
	CR0 =

	 	the Conversion Rate in effect on the day immediately following the date such
tender or exchange offer expires;
	 
	CR1 =

	 	the new Conversion Rate in effect after such tender or exchange offer expires;

32

 

	 	 	 
	AC =

	 	the aggregate value of all cash and any other consideration (as determined by
the Board of Directors) paid or payable for the Common Stock purchased in
such tender or exchange offer;
	 
	OS0 =

	 	the number of shares of Common Stock outstanding immediately prior to the
date such tender or exchange offer expires;
	 
	OS1

	 	the number of shares of Common Stock outstanding immediately after the date
such tender or exchange offer expires (after giving effect to the purchase or
exchange of shares pursuant to such tender or exchange offer); and
	 
	SP1

	 	the average of the Common Stock Prices for each Trading Day in the
ten-consecutive-Trading-Day period commencing on the Trading Day following
the date such tender or exchange offer expires.

          The adjustment to the Conversion Rate under this clause (e) will occur on the 10th Trading Day
from, and including, the Trading Day following the date such tender or exchange offer expires;
provided that in respect of any conversion within ten Trading Days immediately following, and
including, the expiration date of any tender or exchange offer, references with respect to ten
Trading Days shall be deemed replaced with such lesser number of Trading Days as have elapsed
between the expiration date of such tender or exchange offer and the Conversion Date in determining
the Conversion Rate.

          Section 10.08. Additional Adjustments. (a) The Company may, in its sole discretion,
increase the Conversion Rate as the Board of Directors deems advisable to avoid or diminish any
income tax to holders of the Common Stock resulting from any stock dividends, subdivision of
shares, distribution of rights to purchase stock or securities, or a distribution or securities
convertible into or exchangeable for stock hereafter made by the Company to its stockholders or
from any event treated as such for income tax purposes.

          (b) The Company may, from time to time, to the extent permitted by applicable law, increase
the Conversion Rate by any amount for any period of at least 20 Business Days if the Board of
Directors has determined that such increase would be in the Company’s best interests. If the Board
of Directors makes such determination, it shall be conclusive. The Company shall give Holders of
the Securities at least 15 days’ prior notice of such an increase in the Conversion Rate.

          (c) Upon any conversion of the Securities into cash and shares of Common Stock, a Holder will
receive, in addition to the Common Stock, the rights under the Company’s Rights Agreement dated as
of May 11, 1999 (the “Stockholder Rights Plan”) and any subsequent similar rights plan, unless,
prior to any conversion, the rights provided for in the Company’s Rights Agreement or any
subsequent similar rights plan, have separated from the Common Stock in accordance with the
provisions of the Stockholder Rights Plan so that the Holders of the Securities would not be
entitled to receive any rights in respect of Common Stock issuable upon conversion of the
Securities, in which case the Conversion Price will be adjusted as provided in Section 10.07(c)
above, subject to readjustment in the event of the expiration, termination or redemption of the
rights. In lieu of any such adjustment, the Company may amend the Stockholder Rights Plan to
provide that upon conversion of the Securities, the Holders will receive, in addition to cash and
shares of Common Stock issuable upon such conversion, the rights that would have attached to such
shares of Common Stock if the rights had not become separated from the Common Stock under the
Stockholder Rights Plan. A further adjustment shall occur as described in Section 10.07(c), if
such rights become exercisable to purchase different securities, evidences of indebtedness or
assets, subject to readjustment in the event of the expiration, termination or redemption of such
rights.

          (d) Following:

     (i) any reclassification of the Common Stock;

     (ii) a consolidation, merger, binding share exchange or combination involving the
Company; or

     (iii) a conveyance, transfer, sale, lease or other disposition to another Person or
entity of all or substantially all of the Company’s assets;

33

 

          in which holders of the outstanding Common Stock would be entitled to receive cash, securities
or other property for their shares of Common Stock, the Settlement Amount in respect of the
Company’s conversion obligation shall be computed as set forth in Section 10.02 above, based on the
kind and amount of shares of stock, securities, or other property or assets (including cash or any
combination thereof) that holders of the Common Stock are entitled to receive in respect of each
share of Common Stock in such transaction; provided, however, that Holders shall receive:

          (i) cash up to the Principal Portion of the Securities tendered for conversion; and

          (ii) in lieu of the shares of Common Stock, if any, that would have otherwise been
deliverable, the same type (in the same proportions) of consideration received by holders of shares
of Common Stock in the relevant event (the “Reference Property”).

          If holders of the Common Stock are entitled to elect the form of consideration to be received
for their Common Stock in any transaction described in this clause (d), the Company shall make
adequate provision whereby the Holders, treated as a single class, shall have the opportunity, on a
timely basis, to determine the composition of the Reference Property that shall replace any shares
of Common Stock that would otherwise be delivered upon conversion of the Securities. The Reference
Property shall be based on the weighted average of elections made by Holders of the Securities who
participate in such determination and shall be subject to any limitations applicable to all of the
holders of the Common Stock (such as pro rata reductions made to any portion of the consideration
payable). If no Holders participate in such election, then the kind of consideration for their
Securities shall be based on the weighted average of the kind and amount of consideration received
by the holders of the Common Stock that affirmatively make such an election. The determination of
the Reference Property shall apply to all of the Securities and the Company shall notify the
Trustee of the composition of the Reference Property promptly after it is determined.

          (e) All calculations under this Article X shall be made to the nearest cent or the nearest
1/10,000th of a share, as the case may be.

          (f) The Company shall not take any action that would result in an adjustment pursuant to this
Article X without complying with the shareholder approval rules of The New York Stock Exchange or
any stock exchange on which the Common Stock is listed at the relevant time.

          Section 10.09. When No Adjustment Required. No adjustment to the Conversion Rate
shall be made:

          (a) upon the issuance of any shares of Common Stock pursuant to any present or future plan
providing for the reinvestment of dividends or interest payable on securities of the Company and
the investment of additional optional amounts in shares of Common Stock under any plan;

          (b) upon the issuance of any shares of Common Stock or options or rights to purchase those
shares pursuant to any present or any future ordinary course employee, director or consultant
benefit plan or program of or assumed by the Company or any of its Subsidiaries;

          (c) upon the issuance of any shares of Common Stock pursuant to any option, warrant, right or
exercisable, exchangeable or convertible security not outstanding as of the date the Securities
were first issued (unless explicitly otherwise provided in this Article X);

          (d) for a change in the par value of the shares of Common Stock; or

          (e) for accrued and unpaid interest.

          Section 10.10. No Adjustment. Notwithstanding anything in the foregoing provisions of
this Article X to the contrary, the Company shall not be required to adjust the Conversion Rate
unless the adjustment would result in a change of at least 1.0% of the Conversion Rate. However,
the Company shall carry forward any adjustments that are less than 1.0% of the Conversion Rate and
make such carried forward adjustments, regardless of whether the aggregate adjustment is less than
1.0%, upon any conversion of the Securities.

34

 

          Notwithstanding the foregoing, the Company shall not make any adjustment if Holders may
participate in the transaction as a result of holding the Securities, without having to convert
their Securities, as if they held the full number of shares of Common Stock underlying their
Securities.

          Section 10.11. Adjustment to Conversion Rate upon Qualifying Fundamental Change
Transactions. If, after the Issue Date of the Securities, the QFC Effective Date of a
Qualifying Fundamental Change occurs at any time while the Securities are outstanding and any
Securities are surrendered for conversion in connection with such transaction, the Company shall
increase the Conversion Rate by a number of additional shares of Common Stock (the “Additional
Shares”) determined pursuant to this Section 10.11. A “Qualifying Fundamental Change” means either
(i) the occurrence of any event or transaction described in clauses (a) or (c) of the definition of
Change in Control or (ii) any Termination of Trading; provided, however, that a consolidation,
merger, sale, lease, exchange or other transaction otherwise constituting a Fundamental Change
shall not constitute a Qualifying Fundamental Change if at least 90% of the consideration paid for
the Common Stock in that transaction, excluding cash payments for fractional shares and cash
payments made pursuant to dissenters’ appraisal rights, consists of shares of common stock (or
depository receipts or other certificates representing common equity interests) traded on a U.S.
national or regional securities exchange, or will be so traded immediately following the merger or
consolidation, and, as a result of the merger or consolidation, the Securities become convertible
into cash and/or shares of such common stock (or depository receipts or other certificates
representing common equity interests).

          A conversion of the Securities will be deemed for these purposes to be “in connection with” a
Qualifying Fundamental Change transaction if the related Conversion Notices is received by the
Conversion Agent during the period described in Section 10.01(f).

          The Company shall notify Holders, the Trustee and the Conversion Agent of the anticipated QFC
Effective Date of such Qualifying Fundamental Change and issue a press release as soon as
practicable after it first determines the anticipated QFC Effective Date of such Qualifying
Fundamental Change.

          The number of Additional Shares by which the Conversion Rate will be increased for conversions
in connection with a Qualifying Fundamental Change transaction shall be determined by reference to
the table below, based on the date on which the Qualifying Fundamental Change occurs or becomes
effective (the “QFC Effective Date”), and (1) the price paid per share of the Common Stock in the
Change in Control in the case of a Qualifying Fundamental Change described in the clause (a) of the
definition of Change in Control, or (2) in the case of any other Qualifying Fundamental Change, the
average of the last reported sale prices of the Common Stock over the five Trading Day period
ending on the Trading Day preceding the QFC Effective Date of such other Qualifying Fundamental
Change (in the case of either clause (1) or (2), the “Stock Price”). If holders of the Common Stock
receive only cash in the case of a Qualifying Fundamental Change described in clause (a) of the
definition of Change in Control, the Stock Price shall be the cash amount paid per share.

          As of any date upon which the Conversion Rate is adjusted pursuant to Sections 10.07, the
Stock Prices set forth in the first row of the table below shall be adjusted such that the adjusted
Stock Prices shall equal the Stock Prices applicable immediately prior to such adjustment
multiplied by a fraction, the numerator of which is the Conversion Rate immediately prior to such
adjustment giving rise to the Stock Price adjustment and the denominator of which is the Conversion
Rate as so adjusted pursuant to Sections 10.07. The number of Additional Shares in the table below
shall be adjusted in the same manner as the Conversion Rate is adjusted pursuant to Sections 10.07.
If the Stock Price is between two Stock Prices in the table or the QFC Effective Date is between
two QFC Effective Dates in the table, the number of Additional Shares shall be determined by
straight-line interpolation between the number of Additional Shares set forth for the higher and
lower Stock Prices and the two QFC Effective Dates, as applicable, based on a 365-day year. If the
Stock Price is in excess of $20.00 per share (subject to adjustment as set forth herein), or if the
Stock Price is less than $4.37 per share (subject to adjustment as set forth herein), there shall
be no increase in the Conversion Rate.

          The following table sets forth the increase in the Conversion Rate, expressed as a number of
Additional Shares to be added per $1,000 principal amount of Securities.

35

 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	Stock Price	 
	Effective Date
	 	$	4.37	 	 	$	4.50	 	 	$	4.75	 	 	$	5.00	 	 	$	5.25	 	 	$	5.50	 	 	$	6.00	 	 	$	7.00	 	 	$	8.00	 	 	$	9.00	 	 	$	10.00	 	 	$	12.50	 	 	$	15.00	 	 	$	20.00	 
	March 18, 2008
	 	 	52.80	 	 	 	50.71	 	 	 	45.32	 	 	 	40.62	 	 	 	36.50	 	 	 	32.87	 	 	 	26.81	 	 	 	18.14	 	 	 	12.42	 	 	 	8.52	 	 	 	5.80	 	 	 	1.96	 	 	 	0.36	 	 	 	0.00	 
	March 15, 2009
	 	 	52.80	 	 	 	52.80	 	 	 	47.70	 	 	 	42.62	 	 	 	38.19	 	 	 	34.29	 	 	 	27.82	 	 	 	18.62	 	 	 	12.63	 	 	 	8.59	 	 	 	5.79	 	 	 	1.91	 	 	 	0.33	 	 	 	0.00	 
	March 15, 2010
	 	 	52.80	 	 	 	52.80	 	 	 	49.73	 	 	 	44.24	 	 	 	39.45	 	 	 	35.27	 	 	 	28.36	 	 	 	18.67	 	 	 	12.45	 	 	 	8.34	 	 	 	5.53	 	 	 	1.73	 	 	 	0.25	 	 	 	0.00	 
	March 15, 2011
	 	 	52.80	 	 	 	52.80	 	 	 	50.81	 	 	 	44.87	 	 	 	39.73	 	 	 	35.26	 	 	 	27.96	 	 	 	17.91	 	 	 	11.65	 	 	 	7.59	 	 	 	4.90	 	 	 	1.37	 	 	 	0.12	 	 	 	0.00	 
	March 15, 2012
	 	 	52.80	 	 	 	52.80	 	 	 	49.85	 	 	 	43.50	 	 	 	38.07	 	 	 	33.41	 	 	 	25.92	 	 	 	15.95	 	 	 	9.98	 	 	 	6.26	 	 	 	3.87	 	 	 	0.89	 	 	 	0.01	 	 	 	0.00	 
	March 15, 2013
	 	 	52.80	 	 	 	51.17	 	 	 	44.27	 	 	 	38.39	 	 	 	33.36	 	 	 	29.03	 	 	 	22.09	 	 	 	12.95	 	 	 	7.63	 	 	 	4.44	 	 	 	2.49	 	 	 	0.31	 	 	 	0.00	 	 	 	0.00	 
	March 15, 2014
	 	 	52.80	 	 	 	48.23	 	 	 	40.37	 	 	 	33.77	 	 	 	28.22	 	 	 	23.58	 	 	 	16.41	 	 	 	7.85	 	 	 	3.65	 	 	 	1.58	 	 	 	0.55	 	 	 	0.00	 	 	 	0.00	 	 	 	0.00	 
	March 15, 2015
	 	 	52.80	 	 	 	46.17	 	 	 	34.48	 	 	 	23.95	 	 	 	14.43	 	 	 	5.77	 	 	 	0.00	 	 	 	0.00	 	 	 	0.00	 	 	 	0.00	 	 	 	0.00	 	 	 	0.00	 	 	 	0.00	 	 	 	0.00	 

          Notwithstanding the foregoing, in no event will the Conversion Rate as adjusted pursuant to
this Section 10.11 exceed 228.8329 shares per $1,000 principal amount of Securities, subject to
adjustment in the same manner as the Conversion Rate pursuant to Section 10.07(a) through (e).

          Because the Company cannot calculate and deliver the additional conversion consideration due
as a result of an increase in the Conversion Rate resulting from a Qualifying Fundamental Change
until after the QFC Effective Date has occurred, the Company shall not deliver such additional
conversion consideration until after the QFC Effective Date even if the settlement date in respect
of other conversion consideration occurs earlier. As a result, Holders may receive their
Settlement Amount in two payments rather than one. The Company shall deliver the portion of the
Settlement Amount that is payable on account of the increase in the Conversion Rate as soon as
practicable, but in no event after the third Business Day after the later of: (i) the Conversion
Date; (ii) the last Trading Day in the Conversion Settlement Averaging Period; and (iii) the QFC
Effective Date.

          If any Holder surrenders a Security for conversion in connection with a Qualifying Fundamental
Change that the Company has announced, but the Qualifying Fundamental Change is not consummated,
then such Holder shall not be entitled to the increased Conversion Rate as described in this
Section 10.11 in connection with such conversion.

          Section 10.12. Equivalent Adjustments. If, as a result of an adjustment made pursuant
to Section 10.07 above, the Holder of any Security thereafter surrendered for conversion shall
become entitled to receive any shares of Capital Stock of the Company other than shares of its
Common Stock, thereafter the Conversion Price of such other shares so receivable upon conversion of
any Securities shall be subject to adjustment from time to time in a manner and on terms as nearly
equivalent as practicable to the provisions with respect to Common Stock contained in this Article
X.

          Section 10.13. Notice of Adjustment. Whenever the Conversion Rate is adjusted, or
Holders become entitled to other securities, the Company shall promptly mail to Holders a notice of
the adjustment and file with the Trustee an Officers’ Certificate briefly stating the facts
requiring the adjustment and the manner of computing it. The certificate shall be conclusive
evidence of the correctness of such adjustment and the Trustee may conclusively assume that, unless
and until such certificate is received by it, no such adjustment is required.

          Section 10.14. Notice of Certain Transactions. In case:

          (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,
warrants or options to subscribe for or purchase any share of any class or any other rights,
warrants or options; or

          (c) of any reclassification of the Common Stock of the Company (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, merger, or share exchange 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;

36

 

the Company shall cause to be filed with the Trustee and the Conversion Agent and to be mailed to
each Holder of Securities at its address appearing on the list provided for in Section 2.05, as
promptly as possible but in any event at least ten 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, warrants or options, or, if a record is not to be taken, the date
as of which the Holders of Common Stock of record to be entitled to such dividend, distribution or
rights are to be determined, or (y) the date on which such reclassification, consolidation, merger,
share exchange, 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, share exchange, sale, transfer, dissolution,
liquidation or winding-up. Failure to give such notice, or any defect therein, shall not affect
the legality or validity of such dividend, distribution, reclassification, consolidation, merger,
sale, share exchange, transfer, dissolution, liquidation or winding-up.

          Section 10.15. Trustee’s Disclaimer.

          The Trustee has no duty to determine when an adjustment under this Article X should be made,
how it should be made or what such adjustment should be made, but may accept as conclusive evidence
of the correctness of any such adjustment, and shall be protected in relying upon, the Officers’
Certificate with respect thereto which the Company is obligated to file with the Trustee pursuant
to Section 10.13. The Trustee shall not be accountable for and makes no representation as to the
validity or value of any securities or assets issued upon conversion of Securities, and the Trustee
shall not be responsible for the Company’s failure to comply with any provisions of this Article X.
Each Conversion Agent (other than the Company or an Affiliate of the Company) shall have the same
protection under this Section 10.15 as the Trustee.

          The Trustee shall not be under any responsibility to determine the correctness of any
provisions contained in any supplemental indenture executed as a result of Section 10.08(d), but
may accept as conclusive evidence of the correctness thereof, and shall be protected in relying
upon, the Officers’ Certificate with respect thereto which the Company shall file with the Trustee.

          Section 10.16. Simultaneous Adjustments.

          In the event that this Article X requires adjustments to the Conversion Price under more than
one of clauses (a), (b), (c) and (d) of Section 10.07, only one such adjustment shall be made by
applying, first, the provisions of clause (a), second, the provisions of clause (b), third, the
provisions of clause (d), and, fourth, the provisions of clause (c). If more than one event
requiring adjustment pursuant to Section 10.07 shall occur before completing the determination of
the Conversion Price for the first event requiring such adjustment, then the Board of Directors
(whose determination shall, if made in good faith, be conclusive) shall make such adjustments to
the Conversion Price (and the calculation thereof) after giving effect to all such events as shall
preserve for Holders the Conversion Price protection provided in Section 10.07.

          Section 10.17. Successive Adjustments.

          After an adjustment to the Conversion Rate under this Article X, any subsequent event
requiring an adjustment under this Article X shall cause an adjustment to the Conversion Rate as so
adjusted.

          Section 10.18. Limitation on Adjustments.

          The Company shall not take any action that would result in an adjustment pursuant to the
foregoing provisions in this Article X if that adjustment would reduce the Conversion Price below
the then par value of the shares of Common Stock issuable upon conversion of the Securities.

37

 

ARTICLE XI

SUBORDINATION OF SECURITIES

          Article XI of the Base Indenture and all references thereto contained elsewhere in this
Indenture are hereby deleted in their entireties. Article XI shall be amended to state:

[RESERVED]

ARTICLE XII

RIGHT TO REQUIRE REPURCHASE

     Article XII of the Base Indenture is hereby deleted and replaced in its entirety as set forth below:

          Section 12.01. Repurchase of Securities at Option of the Holder.

          (a) Securities shall be repurchased by the Company in accordance with the provisions of
paragraph 6 of the Securities on March 15, 2013, March 15, 2015, March 15, 2018 and March 15, 2023
(each, a “Repurchase Date”) at a Repurchase Price per Security equal to 100% of the aggregate
principal amount of the Security (the “Repurchase Price”), together with accrued but unpaid
interest, thereon, up to but not including the Repurchase Date. In lieu of paying the Repurchase
Price in cash, the Company may elect to pay the Repurchase Price in shares of Common Stock or a
combination of cash and shares of Common Stock. If the Company elects to pay, in whole or in part,
the Repurchase Price in shares of Common Stock, the shares of Common Stock shall be valued (the
“Market Price”) at 97% of the average of the last reported sale prices of Common Stock for the 10
Trading Days immediately preceding and including the third Trading Day prior to the Repurchase
Date, appropriately adjusted to take into account the occurrence during the period commencing on
the first of the Trading Days during the 10 Trading Day period and ending on the Repurchase Date,
of events that would result in an adjustment of the Conversion Rate with respect to the Common
Stock.

          Repurchases of Securities hereunder shall be made, at the option of the Holder thereof, upon:

     (i) delivery to the Paying Agent by the Holder of a written notice of purchase
(a “Repurchase Notice”) at any time from the opening of business on the date that is
20 Business Days prior to the Repurchase Date until the close of business on the
last Business Day prior to such Repurchase Date stating:

                    (A) the certificate number of the Security which the Holder will deliver to be
repurchased;

                    (B) the portion of the principal amount of the Security which the Holder will deliver
to be repurchased, which portion must be in principal amounts of $1,000 or an integral
multiple thereof;

                    (C) that such Security shall be repurchased as of the Repurchase Date pursuant to the
terms and conditions specified in paragraph 6 of the Securities and in this Indenture; and

                    (D) in the event the Company elects, pursuant to the Repurchase Notice, to pay the
Repurchase Price in shares of Common Stock, in whole or in part, but the Repurchase Price is
ultimately to be paid to the Holder entirely in cash because any of the conditions to
payment of the Repurchase Price or portion of the Repurchase Price in shares of Common Stock
is not satisfied prior to the close of business on the last day prior to the Repurchase
Date, whether the Holder elects: (a) to withdraw the Repurchase Notice as to some or all the
Securities to which it relates, or (b) to receive cash in respect of the entire Repurchase
Price for all Securities or portions of Securities subject to the Repurchase Notice;
provided that if the Holder fails to indicate the Holder’s choice with respect to the
election described in this clause (D), the Holder shall be deemed to have elected to receive
cash in respect of the entire Repurchase Price for all Securities subject to the Repurchase
Notice in the circumstances prompting such Repurchase Notice.

38

 

     (ii) delivery or book-entry transfer of such Security to the Paying Agent at
any time after delivery of the Repurchase Notice (together with all necessary
endorsements) at the offices of the Paying Agent, such delivery being a condition to
receipt by the Holder of the Repurchase Price therefor; provided, however, that such
Repurchase Price, together with accrued but unpaid interest, shall be so paid
pursuant to this Section 12.01 only if the Security so delivered to the Paying Agent
shall conform in all respects to the description thereof in the related Repurchase
Notice, as determined by the Company in its sole discretion.

          The Company shall repurchase from the Holder thereof, pursuant to this Section 12.01, a
portion of a Security if the principal amount of such portion is $1,000 or an integral multiple of
$1,000. Provisions of this Indenture that apply to the purchase of all of a Security also apply to
the purchase of such portion of such Security.

          Any purchase by the Company contemplated pursuant to the provisions of this Section 12.01
shall be consummated by the delivery of the consideration to be received by the Holder promptly
following the later of the Repurchase Date and the time of delivery or book-entry transfer of the
Security.

          Notwithstanding anything herein to the contrary, any Holder delivering to the Paying Agent the
Repurchase Notice contemplated by this Section 12.01(a) shall have the right to withdraw such
Repurchase Notice at any time prior to the close of business on the last Business Day prior to the
Repurchase Date by delivery of a written notice of withdrawal to the Paying Agent at the principal
office of the Paying Agent in accordance with Section 12.03.

          The Paying Agent shall promptly notify the Company of the receipt by it of any Repurchase
Notice or written notice of withdrawal thereof.

          (b) Repurchase Company Notice. In connection with any repurchase of Securities pursuant to
Section 12.01, the Company shall give written notice of the Repurchase Date to the Holders and the
Trustee (the “Repurchase Company Notice”). The Repurchase Company Notice shall be sent by
first-class mail to the Trustee and to each Holder (at their addresses shown in the register of the
registrar) not less than 20 Business Days prior to any Repurchase Date if the Company chooses to
pay the Repurchase Price, in whole or in part, in Common Stock or a combination of cash and Common
Stock, as the case may be. Each Repurchase Company Notice shall include a form of Repurchase
Notice to be completed by a Holder and shall state:

     (i) whether the Company will pay the Repurchase Price in cash, in Common Stock,
or any combination thereof and specifying the percentages of each;

     (ii) If the Company elects to pay, in whole or in part, with Common Stock, the
method of calculating the price per share of the Common Stock;

     (iii) the Repurchase Price and Conversion Price;

     (iv) the name and address of the Paying Agent and the Conversion Agent;

     (v) that Securities as to which a Repurchase Notice has been given may be
converted only if the applicable Repurchase Notice has been withdrawn in accordance
with the terms of this Indenture;

     (vi) that Securities must be surrendered to the Paying Agent to collect payment
of the Repurchase Price and accrued but unpaid interest;

     (vii) that the Repurchase Price for any Securities as to which a Repurchase
Notice has been given and not withdrawn, shall be paid promptly following the later
of the Repurchase Date and the time of surrender of such Securities;

     (viii) the procedures the Holder must follow under Section 12.01 or Section
12.02, as the case may be;

39

 

     (ix) briefly, the conversion rights of the Securities;

     (x) that, unless the Company defaults in making payment of such Repurchase
Price, interest, on Securities covered by any Repurchase Notice will cease to accrue
on and after the Repurchase Date;

     (ii) the CUSIP or ISIN number of the Securities; and

     (iii) the procedures for withdrawing a Repurchase Notice (as specified in
Section 12.03).

          Simultaneously with the giving of such Repurchase Company Notice, the Company shall
disseminate a press release through Dow Jones & Company, Inc., Business Wire, Bloomberg Business
News or Reuters (or, if such organizations are not in existence at the time of issuance of such
press release, such other news or press organization as is reasonably calculated to broadly
disseminate the relevant information to the public) containing the information contained in the
Repurchase Company Notice and publish such press release on the Company’s website or,
alternatively, furnish or file such information on a current report on Form 8-K with the SEC.

          If the Company elects to pay the Repurchase Price, in whole or in part, in shares of Common
Stock, the number of shares to be delivered by the Company shall be equal to the portion of the
Repurchase Price to be paid in shares of Common Stock, as determined by the Company in the
Repurchase Company Notice, divided by the Market Price of one share of Common Stock. The Company
shall pay cash based on the Market Price for all fractional shares. The Company may only pay the
Repurchase Price or portion of the Repurchase Price in shares of Common Stock if the Company
complies with qualification and registration of such shares under applicable securities laws.

          Upon determination of the actual number of shares of Common Stock to be paid upon repurchase
of the Securities in accordance with Section 12.01, the Company shall disseminate a press release
not later than two Business Days prior to the Repurchase Date through Dow Jones & Company, Inc.,
Business Wire, Bloomberg Business News or Reuters (or, if such organizations are not in existence
at the time of issuance of such press release, such other news or press organization as is
reasonably calculated to broadly disseminate the relevant information to the public) containing
such information and post such press release on the Company’s website or, alternatively, furnish or
file such information on a current report on Form 8-K with the SEC.

          At the Company’s request and at the Company’s expense, the Trustee shall give the Repurchase
Company Notice in the Company’s name; provided, however, that, in all cases, the text of the
Repurchase Company Notice shall be prepared by the Company.

          Section 12.02. Purchase of Securities at Option of the Holder upon Fundamental Change.

          (a) Except as provided below, if the effective date of a Fundamental Change (the “Fundamental
Change Effective Date”) occurs at any time while the Securities are outstanding, Securities shall
be repurchased by the Company in whole or in part (equal to $1,000 or an integral multiple
thereof), at the option of the Holder thereof, in cash, at a repurchase price equal to 100% of the
principal amount of Securities to be repurchased plus any accrued and unpaid interest thereon up
to, but not including the Fundamental Change Repurchase Date (the “Fundamental Change Repurchase
Price”), subject to satisfaction by or on behalf of the Holder of the requirements set forth in
Section 12.02(c); provided, however, that if the Fundamental Change Repurchase Date is on a date
that is after a record date and on or prior to the corresponding interest payment date, the Company
shall pay the related interest due on such interest payment date to the Holder of record at the
close of business on the corresponding record date. Notwithstanding the foregoing provisions of
this Section 12.02, a Holder shall not have the right to require the Company to repurchase its
Securities upon a Fundamental Change described in clauses (a) or (c) of the definition of Change in
Control, and the Company shall not be required to deliver the Fundamental Change Notice incidental
thereto as a result of any consolidation, merger, sale, lease, exchange or other transaction
otherwise constituting a Fundamental Change in which at least 90% of the consideration paid for the
Company’s Common Stock, excluding cash payments for fractional shares and cash payments made
pursuant to dissenters’ appraisal rights, consists of shares of common stock (or depositary
receipts or other certificates representing common equity interests) traded on a U.S. regional or
national securities exchange, or will be so traded immediately following the merger or
consolidation, and, as a result of

40

 

the merger or consolidation, the Securities become convertible into cash and/or such shares of such
common stock. No Securities may be repurchased by the Company at the option of Holders upon a
Fundamental Change if there has occurred and is continuing an Event of Default with respect to the
Securities, other than a default in payment of the Fundamental Change Repurchase Price with respect
to the Securities.

          (b) Within 15 Business Days after the occurrence of a Fundamental Change, the Company shall
mail a written notice of the Fundamental Change (the “Fundamental Change Notice,” the date of such
mailing, the “Fundamental Change Notice Date”) by first-class mail to the Trustee and to each
Holder. As soon as practicable after the Company determines the anticipated effective date of the
Fundamental Change, the Company will issue a press release and publish the information on its
website. The Fundamental Change Notice shall include a form of Fundamental Change Repurchase
Notice to be completed by the Holder and shall state:

     (i) briefly, the nature of the Fundamental Change, the date of such Fundamental Change
and information about the Holders’ right to require the Company to repurchase the
Securities;

     (ii) the date by which the Fundamental Change Repurchase Notice pursuant to Section
12.02(c) must be given;

     (iii) the date the Company shall repurchase any Securities surrendered for repurchase
in accordance with the provisions of this Section 12.02, which date shall be no earlier than
20 Business Days and no later than 35 Business Days after the Fundamental Change Notice Date
(the “Fundamental Change Repurchase Date”);

     (iv) the Fundamental Change Repurchase Price;

     (v) the name and address of the Paying Agent and the Conversion Agent;

     (vi) the Conversion Rate and any adjustments thereto and, if applicable, the number of
Additional Shares to which a Holder would be entitled on conversion;

     (vii) that the Securities as to which a Fundamental Change Repurchase Notice has been
given may be converted if they are otherwise convertible pursuant to Article X hereof only
if the Fundamental Change Repurchase Notice has been withdrawn in accordance with the terms
of this Indenture;

     (viii) that the Securities must be surrendered to the Paying Agent to collect payment;

     (ix) that the Fundamental Change Repurchase Price for any Security as to which a
Fundamental Change Repurchase Notice has been duly given and not withdrawn will be paid on
the Business Day following the later of the Fundamental Change Repurchase Date and the
Holder’s satisfaction of all applicable conditions;

     (x) briefly, the procedures the Holder must follow to exercise rights under this
Section 12.02;

     (xi) briefly, the conversion rights, if any, of the Securities;

     (xii) the procedures for withdrawing a Fundamental Change Repurchase Notice (as
specified in Section 12.03);

     (xiii) that, unless the Company defaults in making payment of such Fundamental Change
Repurchase Price, interest, if any, on Securities surrendered for repurchase by the Company
will cease to accrue on and after the Fundamental Change Repurchase Date; and

     (xiv) the CUSIP and ISIN number(s) of the Securities.

41

 

          (c) For a Security to be so repurchased at the option of the Holder, the Paying Agent must
receive such Security with the form entitled “Option to Elect Repurchase Upon a Fundamental Change”
(a “Fundamental Change Repurchase Notice”) on the reverse thereof duly completed, together with
such Security duly endorsed for transfer, on or before the Fundamental Change Repurchase Date. The
Fundamental Change Repurchase Notice shall state:

	 	•	 	the certificate numbers of the Securities of the Holder be delivered for
repurchase; and
	 
	 	•	 	the portion of the principal amount of Securities to be repurchased, which
must be $1,000 or an integral multiple of $1,000.

All questions as to the validity, eligibility (including time of receipt) and acceptance of any
Security for redemption shall be determined by the Company, whose determination shall be final and
binding.

          The Company’s obligation to make a Fundamental Change offer to repurchase the Securities shall
be satisfied if a third party makes the Fundamental Change offer in the manner and at the times and
otherwise in compliance with all material requirements applicable to a Fundamental Change offer
made by the Company and purchases all Securities properly tendered and not withdrawn under the
Fundamental Change offer.

          The Company shall purchase from the Holder thereof, pursuant to this Section 12.02, a portion
of a Security if the principal amount of such portion is $1,000 or an integral multiple of $1,000.
Provisions of this Indenture that apply to the purchase of all of a Security also apply to the
purchase of such portion of such Security.

          Any purchase by the Company contemplated pursuant to the provisions of this Section 12.02
shall be consummated by the delivery of the consideration to be received by the Holder promptly
following the later of the Fundamental Change Repurchase Date and the time of delivery of the
Security to the Paying Agent in accordance with this Section 12.02.

          Notwithstanding anything herein to the contrary, any Holder delivering to the Paying Agent the
Fundamental Change Repurchase Notice contemplated by this Section 12.02(b) shall have the right to
withdraw such Fundamental Change Repurchase Notice at any time prior to the close of business on
the Fundamental Change Repurchase Date by delivery of a written notice of withdrawal to the Paying
Agent in accordance with Section 12.03.

          The Paying Agent shall promptly notify the Company of the receipt by it of any Fundamental
Change Repurchase Notice or written withdrawal thereof.

          Section 12.03. Effect of Repurchase Notice or Fundamental Change Repurchase Notice.
Upon receipt by the Paying Agent of the Repurchase Notice or Fundamental Change Repurchase Notice
specified in Section 12.01 or Section 12.02(b), as applicable, the Holder of the Security in
respect of which such Repurchase Notice or Fundamental Change Repurchase Notice, as the case may
be, was given shall (unless such Repurchase Notice or Fundamental Change Repurchase Notice is
withdrawn as specified in the following two paragraphs) thereafter be entitled to receive solely
the Repurchase Price or Fundamental Change Repurchase Price, together with accrued but unpaid
interest, thereon, to but not including the Repurchase Date or Fundamental Change Repurchase Date,
as the case may be, with respect to such Security. Such Repurchase Price or Fundamental Change
Repurchase Price, together with accrued but unpaid interest, thereon, to but not including the
Repurchase Date or Fundamental Change Repurchase Date, as the case may be, shall be paid to such
Holder, subject to receipt of funds by the Paying Agent, promptly following the later of (x) the
Repurchase Date or the Fundamental Change Repurchase Date, as the case may be, with respect to such
Security (provided that the conditions in Section 12.01 or Section 12.02, as applicable, have been
satisfied) and (y) the time of delivery or book-entry transfer of such Security to the Paying Agent
by the Holder thereof in the manner required by Section 12.01 or Section 12.02(b), as applicable.
Securities in respect of which a Repurchase Notice or Fundamental Change Repurchase Notice, as the
case may be, has been given by the Holder thereof may not be converted pursuant to Article X hereof
on or after the date of the delivery of such Repurchase Notice or Fundamental Change Repurchase
Notice, as the case may be, unless such Repurchase Notice or Fundamental Change Repurchase Notice,
as the case may be, has first been validly withdrawn as specified in the following two paragraphs.

42

 

          A Repurchase Notice or Fundamental Change Repurchase Notice, as the case may be, may be
withdrawn by means of a written notice of withdrawal delivered to the office of the Paying Agent in
accordance with the Repurchase Notice or Fundamental Change Repurchase Notice, as the case may be,
at any time, in the case of any repurchase of Securities pursuant to Section 12.01(a)(i), prior to
the close of business on the last Business Day prior to the Repurchase Date or prior to the close
of business, in the case of any repurchase of Securities pursuant to Section 12.02(c), Fundamental
Change Repurchase Date, as the case may be, specifying:

     (i) the certificate number, if any, of the Security in respect of which such
notice of withdrawal is being submitted;

     (ii) the principal amount of the Security with respect to which such notice of
withdrawal is being submitted; and

     (iii) the principal amount, if any, of such Security which remains subject to
the original Repurchase Notice or Fundamental Change Repurchase Notice, as the case
may be, and which has been or will be delivered for purchase by the Company.

          There shall be no purchase of any Securities pursuant to Section 12.01 or Section 12.02 or
redemption pursuant to Section 3.01 if there has occurred prior to, on or after, as the case may
be, the giving, by the Holders of such Securities, of the required Repurchase Notice (or
Fundamental Change Repurchase Notice, as the case may be) and is continuing an Event of Default
(other than a default in the payment of the Repurchase Price or Fundamental Change Repurchase
Price, as the case may be). The Paying Agent will promptly return to the respective Holders
thereof any Securities (x) with respect to which a Repurchase Notice or Fundamental Change
Repurchase Notice, as the case may be, has been withdrawn in compliance with this Indenture, or (y)
held by it during the continuance of an Event of Default (other than a default in the payment of
the Repurchase Price or Fundamental Change Repurchase Price, as the case may be) in which case,
upon such return, the Repurchase Notice or Fundamental Change Repurchase Notice with respect
thereto shall be deemed to have been withdrawn.

          Section 12.04. Deposit of Repurchase Price or Fundamental Change Repurchase Price.
Prior to 11:00 a.m. (New York City time) on or prior to the Repurchase Date or the Fundamental
Change Repurchase Date, as the case may be, the Company shall deposit with the Trustee or with the
Paying Agent (or, if the Company or a Subsidiary or an Affiliate of either of them is acting as the
Paying Agent, shall segregate and hold in trust as provided in Section 2.04) an amount of money (in
immediately available funds if deposited on such Business Day) or shares of Common Stock, if any,
sufficient to pay the aggregate Repurchase Price or Fundamental Change Repurchase Price, as the
case may be, together with accrued but unpaid interest thereon, to but not including the Repurchase
Date or Fundamental Change Repurchase Date, as the case may be, of all the Securities or portions
thereof which are to be purchased as of the Repurchase Date or Fundamental Change Repurchase Date,
as the case may be.

          Section 12.05. Covenant to Comply with Securities Laws upon Purchase of Securities.
When complying with the provisions of Sections 12.01 or 12.02 hereof (provided that such offer or
purchase constitutes an “issuer tender offer” for purposes of Rule 13e-4 (which term, as used
herein, includes any successor provision thereto) under the Exchange Act at the time of such offer
or purchase), the Company shall (i) comply with any applicable provisions of Rule 13e-4 and Rule
14e-1 and any other applicable tender offer rules under the Exchange Act, (ii) file the related
Schedule TO or any successor or similar schedule, if required) under the Exchange Act, and (iii)
otherwise comply with all applicable Federal and state securities laws in connection with any offer
by the Company to purchase the Securities upon a Fundamental Change, so as to permit the rights and
obligations under Sections 12.01 or 12.02 to be exercised in the time and in the manner specified
in Sections 12.01 or 12.02.

          Section 12.06. Repayment to the Company. The Trustee and the Paying Agent shall
return to the Company any cash or shares of Common Stock that remain unclaimed as provided in
paragraph 11 of the Securities, together with interest or dividends, if any, thereon (subject to
the provisions of Section 7.01(f)), held by them for the payment of the Repurchase Price or
Fundamental Change Repurchase Price, as the case may be, and accrued but unpaid interest; provided,
however, that to the extent that the aggregate amount of cash or shares of Common Stock deposited
by the Company pursuant to Section 12.04 exceeds the aggregate Repurchase Price or Fundamental
Change Repurchase Price, as the case may be, of the Securities or portions thereof which the
Company is obligated to purchase as of the Repurchase Date or Fundamental Change Repurchase Date,
as the case may be, and accrued but unpaid

43

 

interest thereon, then, unless otherwise agreed in writing with the Company, promptly after the
Business Day following the Repurchase Date or Fundamental Change Repurchase Date, as the case may
be, the Trustee shall return any such excess to the Company together with interest or dividends, if
any, thereon (subject to the provisions of Section 7.01(f)).

ARTICLE XIII

MISCELLANEOUS

     Article XIII shall be amended as set forth below.

A. Section 13.02 is hereby amended to include in the first paragraph the information as set
forth below:

if to the Company, to:

Coeur d’Alene Mines Corporation

505 Front Avenue, P.O. Box 1

Coeur d’Alene, Idaho 83816

Attention: Secretary

Facsimile No.: (208) 667-2213

if to the Trustee, to:

The Bank of New York

101 Barclay Street — 4E

New York, NY 10286

Attn: Corporate Trust Administration

Facsimile No.: (212) 815-5915

B. Section 13.04(b) is hereby amended to include at the end of such Section the following:

(except in the case of the Company’s initial issuance of the Securities)

C. The second sentence in Section 13.08 is hereby amended as set forth below:

Each Securityholder by accepting a Security waives and releases all such liability to the
extent permitted by applicable law.

D. Article XIII of the Indenture is hereby amended to include new Sections 13.15, 13.16 and
13.17 as set forth below:

          Section 13.15. Waiver of Jury Trial. EACH OF THE COMPANY AND THE TRUSTEE HEREBY
IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL
BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE, THE SECURITIES OR THE
TRANSACTION CONTEMPLATED HEREBY.

          Section 13.16. Force Majeure. In no event shall the Trustee be responsible or liable
for any failure or delay in the performance of its obligations hereunder arising out of or caused
by, directly or indirectly, forces beyond its control, including, without limitation, strikes, work
stoppages, accidents, acts of war or terrorism, civil or military disturbances, nuclear or natural
catastrophes or acts of God, and interruptions, loss or malfunctions of utilities, communications
or computer (software and hardware) services; it being understood that the Trustee shall use
reasonable efforts which are consistent with accepted practices in the banking industry to resume
performance as soon as practicable under the circumstances.

44

 

          Section 13.17. Relationship with the Base Indenture. The terms and provisions
contained in this Supplemental Indenture shall constitute, and are hereby expressly made, a part of
the Base Indenture and the Company and the Trustee, by their execution and delivery of this
Supplemental Indenture, expressly agree to such terms and provisions and to be bound thereby.
However, to the extent any provision of the Base Indenture conflicts with the express provisions of
this Supplemental Indenture, the provisions of this Supplemental Indenture shall govern and be
controlling. In the case of any conflict between the provisions of the Securities and this
Supplemental Indenture, the provisions of the Supplemental Indenture shall control.

          The Trustee accepts the amendment of the Base Indenture effected by this Supplemental
Indenture and agrees to execute the trust created by the Base Indenture as hereby amended, but only
upon the terms and conditions set forth in the Indenture, including the terms and provisions
defining and limiting the liabilities and responsibilities of the Trustee in the performance of the
trust created by the Base Indenture, and without limiting the generality of the foregoing, the
Trustee shall not be responsible in any manner whatsoever for or with respect to any of the
recitals or statements contained herein, all of which recitals or statements are made solely by the
Company, or for or with respect to (1) the validity or sufficiency of this Supplemental Indenture
or any of the terms or provisions hereof, (2) the proper authorization hereof by the Company, (3)
the due execution hereof by the Company or (4) the consequences (direct or indirect and whether
deliberate or inadvertent) of any amendment herein provided for, and the Trustee makes no
representation with respect to any such matters.

45

 

IN WITNESS WHEREOF, the undersigned, being duly authorized, have executed this Supplemental
Indenture on behalf of the respective parties hereto as of the date first above written.

	 	 	 	 	 
	 	COEUR d’ALENE MINES CORPORATION

 	 
	 	By:  	/s/ Mitchell J. Krebs
 	 
	 	 	Name:  	Mitchell J. Krebs 	 
	 	 	Title:  	Senior Vice President, Corporate
Development 	 
	 
	 	The Bank of New York,

as Trustee

 	 
	 	By:  	/s/ Tasneem Selim
 	 
	 	 	Name:  	Tasneem Selim 	 
	 	 	Title:  	Assistant Vice President 	 
	 

(Signature Page to Indenture)

46

 

EXHIBIT A

{FORM OF FACE OF GLOBAL SECURITY}

          UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
COMPANY TO COEUR d’ALENE MINES CORPORATION (THE “COMPANY”) OR ITS AGENT FOR REGISTRATION OF
TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO.
OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
COMPANY (AND ANY PAYMENT HEREON IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY), ANY TRANSFER, PLEDGE OR OTHER USE
HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF,
CEDE & CO., HAS AN INTEREST HEREIN.

          TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS TO NOMINEES OF THE DEPOSITORY
TRUST COMPANY, OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR’S NOMINEE AND TRANSFERS OF PORTIONS OF
THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET
FORTH IN ARTICLE TWO OF THE INDENTURE REFERRED TO ON THE REVERSE HEREOF.

A-1 

 

COEUR d’ALENE MINES CORPORATION

3.25% Convertible Senior Notes Due 2028

	 	 	 
	No.:

	 	CUSIP: 192108AR9
	Issue Date:

	 	Principal Amount:

          COEUR d’ALENE MINES CORPORATION, an Idaho corporation, promises to pay to Cede & Co. or
registered assigns, the principal amount as set forth on Schedule I hereto, on March 15, 2028,
subject to the further provisions of this Security set forth on the reverse hereof, which further
provisions shall for all purposes have the same effect as if set forth at this place. This
Security is convertible as specified on the other side of this Security.

          Interest Payment Dates: March 15 and September 15, commencing September 15, 2008.

          Record Dates: March 1 and September 1, commencing September 1, 2008.

	 	 	 	 	 
	 	COEUR d’ALENE MINES CORPORATION

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 

A-2 

 

	 	 	 	 	 

TRUSTEE’S CERTIFICATE OF AUTHENTICATION

The Bank of New York, as Trustee, certifies that this is one of the Securities referred to in the
within-mentioned Indenture.

	 	 	 	 	 
	By:
	 	 	 	 
	 

	 	 

Authorized Signatory
	 	 

A-3 

 

{FORM OF REVERSE SIDE OF NOTE}

COEUR d’ALENE MINES CORPORATION

3.25% Convertible Senior Notes Due 2028

          (1) Interest.

          This Security shall accrue interest at an initial rate of 3.25% per annum. The Company
promises to pay interest on the Securities in cash semiannually on each March 15 and September 15,
commencing on September 15, 2008, to Holders of record on the immediately preceding March 1 and
September 1, respectively. Interest on the Securities shall accrue from the most recent date to
which interest has been paid or duly provided for, or if no interest has been paid, from the Issue
Date, until the principal amount is paid or duly made available for payment. The Company will pay
interest on any overdue principal amount at the interest rate borne by the Securities at the time
such interest on the overdue principal amount accrues, compounded semiannually, and it shall pay
interest on overdue installments of interest (without regard to any applicable grace period), at
the same interest rate, compounded semiannually. Interest on the Securities will be computed on
the basis of a 360-day year comprised of twelve 30-day months.

          (2) Method of Payment.

          The Company will pay interest, on this Security to the Person who is the registered Holder of
this Security at the close of business on March 1 or September 1, as the case may be, immediately
preceding the related interest payment date. Subject to the terms and conditions of the Indenture,
the Company will make payments in respect of the Redemption Price, Repurchase Price, Fundamental
Change Repurchase Price and the principal amount at Stated Maturity, as the case may be, to the
Holder who surrenders a Security to a Paying Agent to collect such payments in respect of the
Security. The Company will pay cash amounts in money of the United States that at the time of
payment is legal tender for payment of public and private debts. However, the Company may pay
interest, the Redemption Price, Repurchase Price, Fundamental Change Repurchase Price and the
principal amount at Stated Maturity, as the case may be, by check or wire payable in such money;
provided, however, that a Holder holding Securities with an aggregate principal amount in excess of
$1,000,000 may request payment by wire transfer in immediately available funds to an account in
North America at the election of such Holder. The Company may mail an interest check to the
Holder’s registered address. Notwithstanding the foregoing, so long as this Security is registered
in the name of a Depositary or its nominee, all payments hereon shall be made by wire transfer of
immediately available funds to the account of the Depositary or its nominee.

          (3) Paying Agent, Conversion Agent and Registrar.

          Initially, The Bank of New York (the “Trustee”) will act as Paying Agent, Conversion Agent and
Registrar. The Company may appoint and change any Paying Agent, Conversion Agent or Registrar
without notice, other than notice to the Trustee; provided that the Company will maintain at least
one Paying Agent having an office or agency for that purpose. The office shall initially be an
office the Trustee in the State of New York, City of New York, Borough of Manhattan. The Company
or any of its Subsidiaries or any of their Affiliates may act as Paying Agent, Conversion Agent or
Registrar.

          (4) Indenture.

          The Company issued the Securities under a Supplemental Indenture dated as of March 18, 2008
(the “Supplemental Indenture”), between the Company and the Trustee. The terms of the Securities
include those stated in the Indenture and those made part of the Indenture by reference to the
Trust Indenture Act of 1939, as in effect from time to time (the “TIA”). Capitalized terms used
herein and not defined herein have the meanings ascribed thereto in the Indenture. The Securities
are subject to all such terms, and Holders are referred to the Indenture and the TIA for a
statement of those terms.

          The Securities are general unsecured obligations of the Company and the Company shall
initially issue up to $200,000,000 aggregate principal amount (or, if the Underwriters exercise
their option to purchase

A-4 

 

$30,000,000 of additional Securities, up to $230,000,000). The Supplemental Indenture does
not limit other indebtedness of the Company, secured or unsecured.

          (5) Redemption at the Option of the Company.

          On or after March 22, 2015, the Company may redeem the Securities for cash as a whole at any
time, or from time to time in part, upon not less than 30 days’ nor more than 60 days’ notice of
redemption given by mail to Holders. If the Company chooses to redeem any Securities pursuant to
this paragraph, the Company will pay Holders a redemption price equal to 100% of the principal
amount of the Securities to be redeemed, plus accrued but unpaid interest thereon, up to but not
including the Redemption Date (the “Redemption Price”); provided that, if the Redemption Date is on
or after an interest record date but on or prior to the related interest payment date, interest
will be payable to the Holders in whose names the Securities are registered at the close of
business on the relevant record date.

          If the Company does not redeem all the Securities, the Trustee shall select the Securities to
be redeemed in principal amounts of $1,000 or integral multiples thereof by a method that the
Trustee shall deem fair and appropriate. If any Securities are to be redeemed in part only, new
Securities in principal amount equal to the unredeemed principal portion thereof will be issued.
If a portion of a Holder’s Securities is selected for partial redemption and the holder converts a
portion of its Securities, the converted portion will be deemed to be taken from the portion
selected for redemption.

          (6) Repurchase of Securities at Option of the Holder; Purchase of Securities at Option of the
Holder Upon Fundamental Change.

          Subject to the terms and conditions of the Indenture, the Company shall become obligated to
purchase, at the option of the Holder, all or a portion of the Securities held by such Holder, in
any integral multiple of $1,000, on March 15, 2013, March 15, 2015, March 15, 2018 and March 15,
2023 (each, a “Repurchase Date”) at a Repurchase Price per Security equal to 100% of the aggregate
principal amount of the Security (the “Repurchase Price”), together with accrued but unpaid
interest, thereon, up to but not including the Repurchase Date upon delivery of a Repurchase Notice
containing the information set forth in the Indenture, together with the Securities subject
thereto, at any time from the opening of business on the date that is 20 Business Days prior to
such Repurchase Date until the close of business on the last Business Day prior to such Repurchase
Date, and upon delivery of the Securities to the Paying Agent by the Holder as set forth in the
Indenture. If the Repurchase Date is on or after an interest record date but on or prior to the
related interest payment date, accrued but unpaid interest will be payable to the Holders in whose
names the Securities are registered at the close of business on the relevant record date.

          At the option of the Holder and subject to the terms and conditions of the Indenture, the
Company shall become obligated to purchase the Securities held by such Holder after the occurrence
of a Fundamental Change of the Company for a Fundamental Change Repurchase Price equal to 100% of
the principal amount thereof plus accrued but unpaid interest, thereon, up to but not including the
Fundamental Change Repurchase Date which Fundamental Change Repurchase Price shall be paid in cash
(provided that, if the Fundamental Change Repurchase Date is on or after an interest record date
but on or prior to the related interest payment date, accrued but unpaid interest will be payable
to the Holders in whose names the Securities are registered at the close of business on the
relevant record date). Holders have the right to withdraw any Repurchase Notice or Fundamental
Change Repurchase Notice, as the case may be, by delivering to the Paying Agent a written notice of
withdrawal in accordance with the provisions of the Indenture.

          If cash sufficient to pay the Repurchase Price or Fundamental Change Repurchase Price, as the
case may be, and accrued but unpaid interest, on all Securities or portions thereof to be purchased
as of the Repurchase Date or the Fundamental Change Repurchase Date, as the case may be, is
deposited with the Paying Agent on or prior to the Repurchase Date or the Fundamental Change
Repurchase Date, interest, shall cease to accrue on such Securities (or portions thereof) as of
such Repurchase Date or Fundamental Change Repurchase Date, and the Holder thereof shall have no
other rights as such other than the right to receive the Repurchase Price or Fundamental Change
Repurchase Price, as the case may be, and interest, upon surrender of such Security.

          (7) Notice of Redemption.

A-5 

 

          Notice of redemption pursuant to paragraph 5 of this Security will be mailed at least 30 days
but not more than 60 days before the Redemption Date to each Holder of Securities to be redeemed at
the Holder’s registered address. If money sufficient to pay the Redemption Price of all Securities
(or portions thereof) to be redeemed on the Redemption Date is deposited with the Paying Agent on
or prior to the Redemption Date, immediately after such Redemption Date, interest shall cease to
accrue on such Securities or portions thereof. Securities in denominations larger than $1,000 of
principal amount may be redeemed in part but only in integral multiples of $1,000 of principal
amount.

          (8) Conversion.

          Subject to the provisions of Article 10 of the Indenture, a Holder of a Security may convert
such Security if any of the conditions specified in paragraphs (a) through (f) of Section 10.01 of
the Indenture is satisfied; provided, however, that if such Security is called for redemption, the
conversion right will terminate at the close of business on the second Business Day immediately
preceding the Redemption Date of such Security (unless the Company shall default in making the
redemption payment when due, in which case the conversion right shall terminate at the close of
business on the date such Default is cured and such Security is redeemed). The initial conversion
price is approximately $5.68 per share, subject to adjustment under certain circumstances as
described in the Indenture (the “Conversion Price”). The number of shares issuable upon conversion
of a Security is determined by dividing the principal amount of Securities converted by the
Conversion Price in effect on the Conversion Date. Upon conversion, no adjustment for interest, or
dividends will be made. No fractional shares will be issued upon conversion; in lieu thereof, an
amount will be paid in cash based upon the Common Stock Price on the last Trading Day prior to the
Conversion Date.

          To convert a Security, a Holder shall (a) complete and manually sign the Conversion Notices
set forth below or a facsimile of the Conversion Notices, and deliver such Conversion Notice to the
Conversion Agent, (b) surrender the Security to the Conversion Agent, (c) if required by the
Conversion Agent, furnish appropriate endorsement and transfer documents, (d) pay all transfer or
similar taxes required to be paid by such Holder pursuant to Section 10.05 and (e) if required
pursuant to paragraphs 1 and 2 above, pay funds equal to interest payable on the next interest
payment date. If a Person’s interest is a beneficial interest in a Global Security, to convert,
such Person shall comply with requirements (a), (c), (d) and (e) above and comply with the
Depositary’s procedures for converting a beneficial interest into a Global Security.

          Securities surrendered for conversion by a Holder after the close of business on any regular
record date but prior to the next interest payment date must be accompanied by payment of an amount
equal to the interest that shall be payable on the Securities; provided, however, that no such
payment need be made (a) if the Company has specified a Fundamental Change Repurchase Date that is
after a record date and on or prior to the next interest payment date, (b) with respect to any
Securities surrendered for conversion following the record date for the payment of interest
immediately preceding the Stated Maturity, (c) if the Company has specified a Redemption Date that
is after a record date and on or prior to the corresponding interest payment date, or (d) only to
the extent of overdue interest, if any overdue interest exists at the time of conversion with
respect to such Security.

          A Holder may convert a portion of a Security equal to $1,000 or any integral multiple thereof.

          A Security in respect of which a Holder has delivered a Repurchase Notice or a Fundamental
Change Repurchase Notice exercising the option of such Holder to require the Company to repurchase
such Security as provided in Section 12.01 or Section 12.02, respectively, of the Indenture may be
converted only if such notice of exercise is withdrawn in accordance with the terms of the
Indenture.

          (9) Denominations; Transfer; Exchange.

          The Securities are in fully registered book-entry form, without coupons, in denominations of
$1,000 of principal amount and integral multiples of $1,000. A Holder may transfer or exchange
Securities in accordance with the Indenture. The Registrar may require a Holder, among other
things, to furnish appropriate endorsements and transfer documents and to pay any taxes and fees
required by law or permitted by the Indenture. The Registrar need not transfer or exchange any
Securities selected for redemption (except, in the case of a Security to be redeemed in part, the
portion of the Security not to be redeemed) or any Securities in respect of which a Repurchase
Notice or a Fundamental Change Repurchase Notice has been given and not withdrawn (except, in the
case of a Security to be purchased in part,

A-6 

 

the portion of the Security not to be purchased) or any Securities for a period of 15 days
before the mailing of a notice of redemption of Securities to be redeemed.

          (10) Persons Deemed Owners.

          The registered Holder of this Security may be treated as the owner of this Security for all
purposes.

          (11) Unclaimed Money or Securities.

          The Trustee and the Paying Agent shall return to the Company upon written request any money or
securities held by them for the payment of any amount with respect to the Securities that remains
unclaimed for two years, subject to applicable unclaimed property law. After return to the
Company, Holders entitled to the money or securities must look to the Company, for payment as
general creditors unless an applicable abandoned property law designates another person.

          (12) Amendment; Waiver.

(a) Subject to certain exceptions set forth in the Indenture, (i) the Indenture or the Securities
may be amended with the written consent of the Holders of at least a majority in aggregate
principal amount of the Securities at the time outstanding and (ii) certain Defaults may be waived
with the written consent of the Holders of a majority in aggregate principal amount of the
Securities at the time outstanding. Subject to certain exceptions set forth in the Indenture,
without the consent of any Securityholder, the Company and the Trustee may amend the Indenture or
the Securities (a) to cure any ambiguity, omission, defect or inconsistency; (b) to make any other
change that does not adversely affect in any material respect the rights of any Securityholder; (c)
to make provisions with respect to the conversion right of the Holders pursuant to the requirements
of Section 10.08(d) and Section 10.01; (d) to evidence the assumption of the obligations of the
Company by a successor Person under this Indenture and the Securities; (e) to comply with the
provisions of the TIA, or with any requirement of the SEC arising as a result of the qualification
of this Indenture or any supplemental indenture under the TIA; (f) to add covenants or Events of
Default for the benefit of the Holders; (g) to evidence acceptance of appointment by a successor
Trustee; (h) to surrender any of the Company’s rights or powers under this Indenture (including,
without limitation, its right to pay part of the Repurchase Price of the Securities with shares of
Common Stock as provided for in this Indenture occurring on a date after the date of such
amendment); (i) to add guarantees with respect to the Securities or to secure the Securities; or
(j) to conform this Indenture and the form or terms of the Securities in Exhibit A to the section
“Description of the Notes” as set forth in the Prospectus Supplement, dated March 13, 2008.

          (13) Defaults and Remedies.

          Except as set forth in the Indenture, if an Event of Default occurs and is continuing, the
Trustee or the Holders of not less than 25% in principal amount of Securities then outstanding may
declare all the Securities to be due and payable in the manner, at the time and with the effect
provided in the Indenture. Holders of Securities may not enforce the Indenture or the Securities
except as provided in the Indenture. The Trustee is not obligated to enforce the Indenture or the
Securities unless it has received indemnity reasonably satisfactory to it. The Indenture permits,
subject to certain limitations therein provided, Holders of a majority in aggregate principal
amount of the Securities then outstanding to direct the Trustee in its exercise of any trust or
power. The Trustee may withhold from Holders of Securities notice of any continuing Default or
Event of Default (except a Default in payment of principal, premium, if any, or interest when due,
for any reason, or a Default in compliance with Article V of the Indenture) if it determines in
good faith that withholding notice is in the interest of Holders.

          (14) Trustee Dealings with the Company.

          Subject to certain limitations imposed by the TIA, the Trustee under the Indenture, in its
individual or any other capacity, may become the owner or pledgee of Securities and may otherwise
deal with and collect obligations owed to it by the Company or its Affiliates and may otherwise
deal with the Company or its Affiliates with the same rights it would have if it were not Trustee.

A-7 

 

          (15) No Recourse Against Others.

          A director, officer, employee or shareholder, as such, of the Company shall not have any
liability for any obligations of the Company under the Securities or the Indenture or for any claim
based on, in respect of or by reason of such obligations or their creation. By accepting a
Security, each Securityholder waives and releases all such liability. The waiver and release are
part of the consideration for the issue of the Securities.

          (16) Ranking.

          The Securities shall be the Company’s senior unsecured obligations and shall rank equally in
right of payment with all the Company’s existing and future senior indebtedness. The Securities
shall be senior in right of payment to all our existing and future indebtedness that is expressly
subordinated in right of payment to the Securities.

          (17) Authentication.

          This Security shall not be valid until an authorized signatory of the Trustee manually signs
the Trustee’s Certificate of Authentication on the other side of this Security.

          (18) Abbreviations.

          Customary abbreviations may be used in the name of a Securityholder or an assignee, such as
TEN COM (“Tenants In Common”), TEN ENT (“Tenants By The Entireties”), JT TEN (“Joint Tenants With
Right Of Survivorship And Not As Tenants In Common”), CUST (“Custodian”) and U/G/M/A (“Uniform Gift
To Minors Act”).

          (19) Governing Law.

          THE LAWS OF THE STATE OF NEW YORK SHALL GOVERN THE INDENTURE AND THIS SECURITY.

          (20) CUSIP Numbers.

          Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification
Procedures, the Company has caused CUSIP numbers to be printed on the Securities as a convenience
to the Holders of the Securities. No representation is made as to the accuracy of such numbers as
printed on the Securities and reliance may be placed only on the other identification numbers
printed hereon.

A-8 

 

ASSIGNMENT FORM

To assign this Security, fill in the form below:

	 	 	 
	I or we assign and transfer this Security to
	 
	 	 
	 
	 
	 	 
	 
	 
	 	 
	 
	(Insert assignee’s soc. sec. or tax ID no.)
	 
	 	 
	 
	 
	 	 
	 
	(Print or type assignee’s name, address and zip code)
	 
	 	 
	 
	and irrevocably appoint
	 	 
	 

	 	 
	agent to transfer this Security on the books of the Company. The agent may substitute another to act for him.

Date:                                        

CONVERSION NOTICE

To convert this Security into Common Stock of the Company, check the box o

To convert only part of this Security, state the principal amount to be converted (which
must be $1,000 or an integral multiple of $1,000):

	 	 	 
	 
	 
	 	 
	If you want the stock certificate made out in another person’s name fill in the form below:
	 
	 	 
	 
	 
	 	 
	 
	 
	 	 
	 
	(Insert the other person’s soc. sec. tax ID no.)
	 
	 	 
	 
	 
	 	 
	 
	 
	 	 
	 
	(Print or type other person’s name, address and zip code)
	Your Signature:
	 	 
	 

	 	 
	(Sign exactly as your name appears on the other side of this Security)

	 	 	 
	Signature Guaranteed
	 
	 	 
	 
	Participant in a Recognized Signature
	Guarantee Medallion Program
	By:
	 	 
	 

	 	 
	Authorized Signatory

A-9 

 

FORM OF REPURCHASE NOTICE

To: Coeur d’Alene Mines Corporation

          The undersigned registered holder of this Security requests and instructs the Company to
purchase this Security, or the portion hereof (which is $1,000 principal amount or a multiple
thereof) designated below, on the March 15 specified below, in accordance with the terms and
conditions specified in paragraph 6 of this Security and the Indenture referred to in this Security
and directs that the check in payment for this Security or the portion thereof and any Securities
representing the portion of principal amount hereof not to be so purchased, be issued and delivered
to the registered holder hereof unless a different name has been indicated below. If any portion
of this Security not purchased is to be issued in the name of a Person other than the undersigned,
the undersigned shall pay all transfer taxes payable with respect thereto.

Dated:

	 	 	 
	 

	 	 
	 

	 	Signature(s)

Fill in for registration of Securities not purchased if to be issued other than to and in the name
of registered holder:

	 	 	 
	 
	(Name)
	 
	 	 
	 
	(Street Address)
	 
	 	 
	 
	(City, state and zip code)

Please print name and address

principal amount to be purchased (if less than all): $___,000

date of
requested purchase: March 15, 201_

    (specify either March 15, 2013, 2015, 2018 and 2023)

A-10 

 

FORM OF OPTION TO ELECT REPURCHASE UPON A FUNDAMENTAL CHANGE

To: Coeur d’Alene Mines Corporation

          The undersigned registered holder of this Security hereby acknowledges receipt of a notice
from Coeur d’Alene Mines Corporation (the “Company”) as to the occurrence of a Fundamental Change
with respect to the Company and requests and instructs the Company to repurchase this Security, or
the portion hereof (which is $1,000 principal amount or a multiple thereof) designated below, in
accordance with the terms of the Indenture referred to in this Security and directs that the check
in payment for this Security or the portion thereof and any Securities representing any
unrepurchased principal amount hereof, be issued and delivered to the registered holder hereof
unless a different name has been indicated below. If any portion of this Security not repurchased
is to be issued in the name of a Person other than the undersigned, the undersigned shall pay all
transfer taxes payable with respect thereto.

Dated:

	 	 	 
	 

	 	 
	 

	 	Signature(s)

Fill in for registration of Securities not purchased if to be issued other than to and in the name
of registered holder:

	 	 	 
	 
	(Name)
	 
	 	 
	 
	(Street Address)
	 
	 	 
	 
	(City, state and zip code)

Please print name and address

principal amount to be purchased (if less than all): $___,000

A-11 

 

SCHEDULE I

COEUR d’ALENE MINES CORPORATION

3.25% Convertible Senior Notes Due 2028

	 	 	 	 	 
	Date	 	Principal Amount	 	Notation
	 

	 	 
	 	 

A-12 

 

EXHIBIT B

{Form of Certificated Security}

COEUR d’ALENE MINES CORPORATION

3.25% Convertible Senior Notes Due 2028

	 	 	 
	No.:

	 	CUSIP: 192108AR9
	Issue Date:

	 	Principal Amount:

          COEUR d’ALENE MINES CORPORATION, an Idaho corporation, promises to pay to
                                                             or registered assigns, the principal amount of          
                               , on
March 15, 2028, subject to the further provisions of this Security set forth on the reverse hereof,
which further provisions shall for all purposes have the same effect as if set forth at this place.
This Security is convertible as specified on the other side of this Security.

          Interest Payment Dates: March 15 and September 15, commencing September 15, 2008

          Record Dates: March 1 and September 1, commencing September 1, 2008

	 	 	 	 	 
	 	COEUR d’ALENE MINES CORPORATION

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 

B-1 

 

	 	 	 	 	 

EXHIBIT B

TRUSTEE’S CERTIFICATE OF AUTHENTICATION

          The Bank of New York, as Trustee, certifies that this is one of the Securities referred to in
the within-mentioned Indenture.

	 	 	 	 	 
	By:
	 	 	 	 
	 

	 	 

Authorized Signatory
	 	 

Dated:

B-2 

 

EXHIBIT B

[FORM OF REVERSE SIDE IS IDENTICAL TO EXHIBIT A]

B-3

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