Document:

exv4w5

Exhibit 4.5

 

 

THOMAS WEISEL PARTNERS GROUP, INC.

TO

THE BANK
OF NEW  YORK MELLON TRUST COMPANY, N.A.

Trustee

 

Indenture

Dated as of                     , 20

 

Senior Debt Securities

 

 

 

 

Certain Sections of this Indenture relating to Sections 310 through 318,

inclusive, of the Trust Indenture Act of 1939:

	 	 	 	 	 	 	 
	Trust Indenture	 	 	 	 
	Act Section	 	 	 	 	Indenture Section
	 	 	 
	 	 	 	 
	§ 310(a)(1)
	 	 

	 	 	609	 
	(a)(2)

	 	 

	 	 	609	 
	(a)(3)

	 	 

	 	 	Not Applicable

	(a)(4)

	 	 

	 	 	Not Applicable

	(b)

	 	 

	 	 	608	 
	 	 	 

	 	 	610	 
	§ 311(a)
	 	 

	 	 	613	 
	(b)

	 	 

	 	 	613	 
	§ 312(a)
	 	 

	 	 	701	 
	 	 	 

	 	 	702	 
	(b)

	 	 

	 	 	702	 
	(c)

	 	 

	 	 	702	 
	§ 313(a)
	 	 

	 	 	703	 
	(b)

	 	 

	 	 	703	 
	(c)

	 	 

	 	 	703	 
	(d)

	 	 

	 	 	703	 
	§ 314(a)
	 	 

	 	 	704	 
	(a)(4)

	 	 

	 	 	101	 
	 	 	 

	 	 	1004	 
	(b)

	 	 

	 	 	Not Applicable

	(c)(1)

	 	 

	 	 	102	 
	(c)(2)

	 	 

	 	 	102	 
	(c)(3)

	 	 

	 	 	Not Applicable

	(d)

	 	 

	 	 	Not Applicable

	(e)

	 	 

	 	 	102	 
	§ 315(a)
	 	 

	 	 	601	 
	(b)

	 	 

	 	 	602	 
	(c)

	 	 

	 	 	601	 
	(d)

	 	 

	 	 	601	 
	(e)

	 	 

	 	 	514	 
	§ 316(a)
	 	 

	 	 	101	 
	(a)(1)(A)

	 	 

	 	 	502	 
	 	 	 

	 	 	512	 
	(a)(1)(B)

	 	 

	 	 	513	 
	(a)(2)

	 	 

	 	 	Not Applicable

	(b)

	 	 

	 	 	508	 
	(c)

	 	 

	 	 	104	 
	§ 317(a)(1)
	 	 

	 	 	503	 
	(a)(2)

	 	 

	 	 	504	 
	(b)

	 	 

	 	 	1003	 
	§ 318(a)
	 	 

	 	 	107	 

 

			
	Note:	 	This reconciliation and
tie shall not, for any purpose, be
deemed to be a part of the Indenture.

 

TABLE OF CONTENTS

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 	 	 
	 	 	 	 
	ARTICLE One
	 	 	 
	 	 	 	 
	Definitions and Other Provisions of General Application
	 	 	 
	 	 	 	 
	SECTION 101.
	 	Definitions

	 	 	1	 
	 	 	Act

	 	 	2	 
	 	 	Affiliate

	 	 	2	 
	 	 	Authenticating Agent

	 	 	2	 
	 	 	Board of Directors

	 	 	2	 
	 	 	Board Resolution

	 	 	2	 
	 	 	Business Day

	 	 	2	 
	 	 	Commission

	 	 	2	 
	 	 	Common Stock

	 	 	2	 
	 	 	Company

	 	 	2	 
	 	 	Company Request

	 	 	3	 
	 	 	Company Order

	 	 	3	 
	 	 	Control

	 	 	3	 
	 	 	Corporate Trust Office

	 	 	3	 
	 	 	Corporation

	 	 	3	 
	 	 	Covenant Defeasance

	 	 	3	 
	 	 	Defaulted Interest

	 	 	3	 
	 	 	Defeasance

	 	 	3	 
	 	 	Depositary

	 	 	3	 
	 	 	Event of Default

	 	 	3	 
	 	 	Exchange Act

	 	 	3	 
	 	 	Expiration Date

	 	 	3	 
	 	 	Global Security

	 	 	3	 
	 	 	Holder

	 	 	3	 
	 	 	Indenture

	 	 	3	 
	 	 	Interest

	 	 	3	 
	 	 	Interest Payment Date

	 	 	4	 
	 	 	Investment Company Act

	 	 	4	 
	 	 	Maturity

	 	 	4	 
	 	 	Notice of Default

	 	 	4	 
	 	 	Officers’ Certificate

	 	 	4	 
	 	 	Opinion of Counsel

	 	 	4	 
	 	 	Original Issue Discount Security

	 	 	4	 
	 	 	Outstanding

	 	 	4	 
	 	 	Paying Agent

	 	 	5	 
	 	 	Person

	 	 	5	 
	 	 	Place of Payment

	 	 	5	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

-i-

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 	 	 
	 	 	 	 
	 
	 	Predecessor Security

	 	 	5	 
	 	 	Redemption Date

	 	 	5	 
	 	 	Redemption Price

	 	 	5	 
	 	 	Regular Record Date

	 	 	5	 
	 	 	Securities

	 	 	6	 
	 	 	Securities Act

	 	 	6	 
	 	 	Security Register

	 	 	6	 
	 	 	Security Registrar

	 	 	6	 
	 	 	Special Record Date

	 	 	6	 
	 	 	Stated Maturity

	 	 	6	 
	 	 	Trust Indenture Act

	 	 	6	 
	 	 	Trustee

	 	 	6	 
	 	 	U.S. Government Obligation

	 	 	6	 
	 	 	Vice President

	 	 	6	 
	 	 	 
	 	 	 	 
	SECTION 102.
	 	Compliance Certificates and Opinions

	 	 	6	 
	 	 	 
	 	 	 	 
	SECTION 103.
	 	Form of Documents Delivered to Trustee

	 	 	7	 
	 	 	 
	 	 	 	 
	SECTION 104.
	 	Acts of Holders; Record Dates

	 	 	7	 
	 	 	 
	 	 	 	 
	SECTION 105.
	 	Notices, Etc., to Trustee and Company

	 	 	9	 
	 	 	 
	 	 	 	 
	SECTION 106.
	 	Notice to Holders; Waiver

	 	 	10	 
	 	 	 
	 	 	 	 
	SECTION 107.
	 	Conflict with Trust Indenture Act

	 	 	10	 
	 	 	 
	 	 	 	 
	SECTION 108.
	 	Effect of Headings and Table of Contents

	 	 	10	 
	 	 	 
	 	 	 	 
	SECTION 109.
	 	Successors and Assigns

	 	 	10	 
	 	 	 
	 	 	 	 
	SECTION 110.
	 	Separability Clause

	 	 	11	 
	 	 	 
	 	 	 	 
	SECTION 111.
	 	Benefits of Indenture

	 	 	11	 
	 	 	 
	 	 	 	 
	SECTION 112.
	 	Governing Law

	 	 	11	 
	 	 	 
	 	 	 	 
	SECTION 113.
	 	Legal Holidays

	 	 	11	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

-ii-

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 	 	ARTICLE Two
	 	 	 	 
	 	 	 
	 	 	 	 
	 	 	Security Forms
	 	 	 	 
	 	 	 
	 	 	 	 
	SECTION 201.
	 	Forms Generally

	 	 	11	 
	 	 	 
	 	 	 	 
	SECTION 202.
	 	Form of Face of Security

	 	 	12	 
	 	 	 
	 	 	 	 
	SECTION 203.
	 	Form of Reverse of Security

	 	 	13	 
	 	 	 
	 	 	 	 
	SECTION 204.
	 	Form of Legend for Global Securities

	 	 	18	 
	 	 	 
	 	 	 	 
	SECTION 205.
	 	Form of Trustee’s Certificate of Authentication

	 	 	18	 
	 	 	 
	 	 	 	 
	SECTION 206.
	 	Form of Conversion Notice

	 	 	18	 
	 	 	 
	 	 	 	 
	ARTICLE Three
	 	 	 
	 	 	 	 
	The Securities
	 	 	 
	 	 	 	 
	SECTION 301.
	 	Amount Unlimited; Issuable in Series

	 	 	19	 
	 	 	 
	 	 	 	 
	SECTION 302.
	 	Denominations

	 	 	22	 
	 	 	 
	 	 	 	 
	SECTION 303.
	 	Execution, Authentication, Delivery and Dating

	 	 	22	 
	 	 	 
	 	 	 	 
	SECTION 304.
	 	Temporary Securities

	 	 	23	 
	 	 	 
	 	 	 	 
	SECTION 305.
	 	Registration; Registration of Transfer and Exchange

	 	 	24	 
	 	 	 
	 	 	 	 
	SECTION 306.
	 	Mutilated, Destroyed, Lost and Stolen Securities

	 	 	25	 
	 	 	 
	 	 	 	 
	SECTION 307.
	 	Payment of Interest; Interest Rights Preserved

	 	 	26	 
	 	 	 
	 	 	 	 
	SECTION 308.
	 	Persons Deemed Owners

	 	 	27	 
	 	 	 
	 	 	 	 
	SECTION 309.
	 	Cancellation

	 	 	28	 
	 	 	 
	 	 	 	 
	SECTION 310.
	 	Computation of Interest

	 	 	28	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

-iii-

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 	 	 
	 	 	 	 
	ARTICLE Four
	 	 	 
	 	 	 	 
	Satisfaction and Discharge
	 	 	 
	 	 	 	 
	SECTION 401.
	 	Satisfaction and Discharge of Indenture

	 	 	28	 
	 	 	 
	 	 	 	 
	SECTION 402.
	 	Application of Trust Money

	 	 	29	 
	 	 	 
	 	 	 	 
	ARTICLE Five
	 	 	 
	 	 	 	 
	Remedies
	 	 	 
	 	 	 	 
	SECTION 501.
	 	Events of Default

	 	 	29	 
	 	 	 
	 	 	 	 
	SECTION 502.
	 	Acceleration of Maturity; Rescission and Annulment

	 	 	31	 
	 	 	 
	 	 	 	 
	SECTION 503.
	 	Collection of Indebtedness and Suits for Enforcement by Trustee

	 	 	32	 
	 	 	 
	 	 	 	 
	SECTION 504.
	 	Trustee May File Proofs of Claim

	 	 	32	 
	 	 	 
	 	 	 	 
	SECTION 505.
	 	Trustee May Enforce Claims Without Possession of Securities

	 	 	33	 
	 	 	 
	 	 	 	 
	SECTION 506.
	 	Application of Money Collected

	 	 	33	 
	 	 	 
	 	 	 	 
	SECTION 507.
	 	Limitation on Suits

	 	 	33	 
	 	 	 
	 	 	 	 
	SECTION 508.
	 	Unconditional Right of Holders to Receive Principal, Premium and
Interest and to Convert

	 	 	34	 
	 	 	 
	 	 	 	 
	SECTION 509.
	 	Restoration of Rights and Remedies

	 	 	34	 
	 	 	 
	 	 	 	 
	SECTION 510.
	 	Rights and Remedies Cumulative

	 	 	34	 
	 	 	 
	 	 	 	 
	SECTION 511.
	 	Delay or Omission Not Waiver

	 	 	35	 
	 	 	 
	 	 	 	 
	SECTION 512.
	 	Control by Holders

	 	 	35	 
	 	 	 
	 	 	 	 
	SECTION 513.
	 	Waiver of Past Defaults

	 	 	35	 
	 	 	 
	 	 	 	 
	SECTION 514.
	 	Undertaking for Costs

	 	 	35	 
	 	 	 
	 	 	 	 
	SECTION 515.
	 	Waiver of Usury, Stay or Extension Laws

	 	 	36	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

-iv-

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 	 	 
	 	 	 	 
	ARTICLE Six
	 	 	 
	 	 	 	 
	The Trustee
	 	 	 
	 	 	 	 
	SECTION 601.
	 	Certain Duties and Responsibilities

	 	 	36	 
	 	 	 
	 	 	 	 
	SECTION 602.
	 	Notice of Defaults

	 	 	37	 
	 	 	 
	 	 	 	 
	SECTION 603.
	 	Certain Rights of Trustee

	 	 	37	 
	 	 	 
	 	 	 	 
	SECTION 604.
	 	Not Responsible for Recitals or Issuance of Securities

	 	 	38	 
	 	 	 
	 	 	 	 
	SECTION 605.
	 	May Hold Securities and Act as Trustee Under Other Indentures

	 	 	39	 
	 	 	 
	 	 	 	 
	SECTION 606.
	 	Money Held in Trust

	 	 	39	 
	 	 	 
	 	 	 	 
	SECTION 607.
	 	Compensation and Reimbursement

	 	 	39	 
	 	 	 
	 	 	 	 
	SECTION 608.
	 	Conflicting Interests

	 	 	40	 
	 	 	 
	 	 	 	 
	SECTION 609.
	 	Corporate Trustee Required; Eligibility

	 	 	40	 
	 	 	 
	 	 	 	 
	SECTION 610.
	 	Resignation and Removal; Appointment of Successor

	 	 	40	 
	 	 	 
	 	 	 	 
	SECTION 611.
	 	Acceptance of Appointment by Successor

	 	 	42	 
	 	 	 
	 	 	 	 
	SECTION 612.
	 	Merger, Conversion, Consolidation or Succession to Business

	 	 	43	 
	 	 	 
	 	 	 	 
	SECTION 613.
	 	Preferential Collection of Claims Against Company

	 	 	43	 
	 	 	 
	 	 	 	 
	SECTION 614.
	 	Appointment of Authenticating Agent

	 	 	43	 
	 	 	 
	 	 	 	 
	ARTICLE Seven
	 	 	 
	 	 	 	 
	Holders’ Lists and Reports by Trustee and Company
	 	 	 
	 	 	 	 
	SECTION 701.
	 	Company to Furnish Trustee Names and Addresses of Holders

	 	 	44	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

-v-

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 	 	 
	 	 	 	 
	SECTION 702.
	 	Preservation of Information; Communications to Holders

	 	 	45	 
	 	 	 
	 	 	 	 
	SECTION 703.
	 	Reports by Trustee

	 	 	45	 
	 	 	 
	 	 	 	 
	SECTION 704.
	 	Reports by Company

	 	 	45	 
	 	 	 
	 	 	 	 
	ARTICLE Eight
	 	 	 
	 	 	 	 
	Consolidation, Merger, Conveyance, Transfer or Lease
	 	 	 
	 	 	 	 
	SECTION 801.
	 	Company May Consolidate, Etc., Only on Certain Terms

	 	 	46	 
	 	 	 
	 	 	 	 
	SECTION 802.
	 	Successor Substituted

	 	 	47	 
	 	 	 
	 	 	 	 
	ARTICLE Nine
	 	 	 
	 	 	 	 
	Supplemental Indentures
	 	 	 
	 	 	 	 
	SECTION 901.
	 	Supplemental Indentures Without Consent of Holders

	 	 	47	 
	 	 	 
	 	 	 	 
	SECTION 902.
	 	Supplemental Indentures With Consent of Holders

	 	 	48	 
	 	 	 
	 	 	 	 
	SECTION 903.
	 	Execution of Supplemental Indentures

	 	 	49	 
	 	 	 
	 	 	 	 
	SECTION 904.
	 	Effect of Supplemental Indentures

	 	 	49	 
	 	 	 
	 	 	 	 
	SECTION 905.
	 	Conformity with Trust Indenture Act

	 	 	50	 
	 	 	 
	 	 	 	 
	SECTION 906.
	 	Reference in Securities to Supplemental Indentures

	 	 	50	 
	 	 	 
	 	 	 	 
	ARTICLE Ten
	 	 	 
	 	 	 	 
	Covenants
	 	 	 
	 	 	 	 
	SECTION 1001.
	 	Payment of Principal, Premium and Interest

	 	 	50	 
	 	 	 
	 	 	 	 
	SECTION 1002.
	 	Maintenance of Office or Agency

	 	 	50	 
	 	 	 
	 	 	 	 
	SECTION 1003.
	 	Money for Securities Payments to Be Held in Trust

	 	 	51	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

-vi-

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 	 	 
	 	 	 	 
	SECTION 1004.
	 	Statement by Officers as to Default

	 	 	52	 
	 	 	 
	 	 	 	 
	SECTION 1005.
	 	Existence

	 	 	52	 
	 	 	 
	 	 	 	 
	SECTION 1006.
	 	Waiver of Certain Covenants

	 	 	52	 
	 	 	 
	 	 	 	 
	ARTICLE Eleven
	 	 	 
	 	 	 	 
	Redemption of Securities
	 	 	 
	 	 	 	 
	SECTION 1101.
	 	Applicability of Article

	 	 	52	 
	 	 	 
	 	 	 	 
	SECTION 1102.
	 	Election to Redeem; Notice to Trustee

	 	 	53	 
	 	 	 
	 	 	 	 
	SECTION 1103.
	 	Selection by Trustee of Securities to Be Redeemed

	 	 	53	 
	 	 	 
	 	 	 	 
	SECTION 1104.
	 	Notice of Redemption

	 	 	54	 
	 	 	 
	 	 	 	 
	SECTION 1105.
	 	Deposit of Redemption Price

	 	 	54	 
	 	 	 
	 	 	 	 
	SECTION 1106.
	 	Securities Payable on Redemption Date

	 	 	55	 
	 	 	 
	 	 	 	 
	SECTION 1107.
	 	Securities Redeemed in Part

	 	 	55	 
	 	 	 
	 	 	 	 
	ARTICLE Twelve
	 	 	 
	 	 	 	 
	Sinking Funds
	 	 	 
	 	 	 	 
	SECTION 1201.
	 	Applicability of Article

	 	 	55	 
	 	 	 
	 	 	 	 
	SECTION 1202.
	 	Satisfaction of Sinking Fund Payments with Securities

	 	 	56	 
	 	 	 
	 	 	 	 
	SECTION 1203.
	 	Redemption of Securities for Sinking Fund

	 	 	56	 
	 	 	 
	 	 	 	 
	ARTICLE Thirteen
	 	 	 
	 	 	 	 
	Defeasance and Covenant Defeasance
	 	 	 
	 	 	 	 
	SECTION 1301.
	 	Company’s Option to Effect Defeasance or Covenant Defeasance

	 	 	56	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

-vii-

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 	 	 
	 	 	 	 
	SECTION 1302.
	 	Defeasance and Discharge

	 	 	57	 
	 	 	 
	 	 	 	 
	SECTION 1303.
	 	Covenant Defeasance

	 	 	57	 
	 	 	 
	 	 	 	 
	SECTION 1304.
	 	Conditions to Defeasance or Covenant Defeasance

	 	 	57	 
	 	 	 
	 	 	 	 
	SECTION 1305.
	 	Deposited Money and U.S.
Government Obligations to Be
Held in Trust; Miscellaneous
Provisions

	 	 	59	 
	 	 	 
	 	 	 	 
	SECTION 1306.
	 	Reinstatement

	 	 	60	 
	 	 	 
	 	 	 	 
	ARTICLE Fourteen
	 	 	 
	 	 	 	 
	Conversion of Securities
	 	 	 
	 	 	 	 
	SECTION 1401.
	 	Applicability of Article

	 	 	60	 
	 	 	 
	 	 	 	 
	SECTION 1402.
	 	Exercise of Conversion Privilege

	 	 	60	 
	 	 	 
	 	 	 	 
	SECTION 1403.
	 	No Fractional Shares

	 	 	61	 
	 	 	 
	 	 	 	 
	SECTION 1404.
	 	Adjustment of Conversion Price

	 	 	62	 
	 	 	 
	 	 	 	 
	SECTION 1405.
	 	Notice of Certain Corporate Actions

	 	 	62	 
	 	 	 
	 	 	 	 
	SECTION 1406.
	 	Reservation of Shares of Common Stock

	 	 	63	 
	 	 	 
	 	 	 	 
	SECTION 1407.
	 	Payment of Certain Taxes Upon Conversion

	 	 	63	 
	 	 	 
	 	 	 	 
	SECTION 1408.
	 	Nonassessability

	 	 	63	 
	 	 	 
	 	 	 	 
	SECTION 1409.
	 	Effect of Consolidation or Merger on Conversion Privilege

	 	 	63	 
	 	 	 
	 	 	 	 
	SECTION 1410.
	 	Duties of Trustee Regarding Conversion

	 	 	64	 
	 	 	 
	 	 	 	 
	SECTION 1411.
	 	Repayment of Certain Funds Upon Conversion

	 	 	65	 
	 	 	 
	 	 	 	 
	Testimonium
	 	 

	 	 	69	 
	 	 	 
	 	 	 	 
	Signatures and Seals	 	 	69	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

-viii-

 

     INDENTURE, dated as of                 , 20    , between Thomas Weisel Partners Group, Inc., a
corporation duly organized and existing under the laws of the State of Delaware (herein called the
“Company”), having its principal executive office at One Montgomery Street, San Francisco,
California 94104, and THE BANK
OF NEW  YORK MELLON TRUST COMPANY, N. A., as Trustee (herein called the
“Trustee”).

Recitals of the Company

     The Company has duly authorized the execution and delivery of this Indenture to provide for
the issuance from time to time of its unsecured debentures, notes or other evidences of
indebtedness (herein called the “Securities”), to be issued in one or more series as provided in
this Indenture.

     All things necessary to make this Indenture a valid agreement of the Company, in accordance
with its terms, have been done.

     Now, Therefore, This Indenture Witnesseth:

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

ARTICLE ONE

Definitions and Other Provisions

of General Application

SECTION 101. Definitions.

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

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

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

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

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

 

 

     (5)
“including” means including without limitation;

     (6) 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.

     “Act”, when used with respect to any Holder, has the meaning specified in Section 104.

     “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” when used with respect to any specified Person means the
power to direct the management and policies of such Person, directly or indirectly, whether through
the ownership of voting securities, by contract or otherwise; and the terms “controlling” and
“controlled” have meanings correlative to the foregoing.

     “Authenticating Agent” means any Person authorized by the Trustee pursuant to Section 614 to
act on behalf of the Trustee to authenticate Securities of one or more series.

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

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

     “Business Day”, when used with respect to any Place of Payment, means each Monday, Tuesday,
Wednesday, Thursday and Friday which is not a day on which banking institutions in that Place of
Payment are authorized or obligated by law, regulation or executive order to close.

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

     “Common Stock” includes any stock of any class of the Company which has no preference in
respect of dividends or of amounts payable in the event of any voluntary or involuntary
liquidation, dissolution or winding-up of the Company and which is not subject to redemption by the
Company; provided, however, subject to the provisions of Section 1409, shares issuable on
conversions of Securities shall include only shares of the class designated as Common Stock of the
Company at the date of this Indenture or shares of any class or classes resulting from any
reclassification or reclassifications thereof and which have no preference in respect of dividends
or of amounts payable in the event of any voluntary or involuntary liquidation, dissolution or
winding-up of the Company and which are not subject to redemption by the Company; provided,
further, that if at any time there shall be more than one
such resulting class, the shares of each such class then so issuable shall be substantially in
the proportion which the total number of shares of such class resulting from all such
reclassifications bears to the total number of shares of all such classes resulting from all such
reclassifications.

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

-2-

 

     “Company Request” or “Company Order” means a written request or order signed in the name of
the Company by its Chairman of the Board, its Vice Chairman of the Board, its President or a Vice
President, and by its principal financial officer, its Treasurer, an Assistant Treasurer, its
Secretary or an Assistant Secretary, and delivered to the Trustee.

     “control” when used with respect to any specified Person means the power to direct the
management and policies of such Person, directly or indirectly, whether through the ownership of
voting securities, by contract or otherwise; and the terms “controlling” and “controlled” shall
have the meanings correlative to the foregoing.

     “Corporate Trust Office” means the corporate trust office of the Trustee at 700 S. Flower Street, Suite 500, Los Angeles, CA., 90017 Attn: Corporate Trust Administration
or the office or agency of the Trustee at which at any particular time its
corporate trust business shall be principally administered.

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

     “Covenant Defeasance” has the meaning specified in Section 1303.

     “Defaulted Interest” has the meaning specified in Section 307.

     “Defeasance” has the meaning specified in Section 1302.

     “Depositary” means, with respect to Securities of any series issuable in whole or in part in
the form of one or more Global Securities, a clearing agency registered under the Exchange Act that
is designated to act as Depositary for such Securities as contemplated by Section 301 until a successor will have been appointed and become such pursuant to the applicable provisions of this Indenture.

     “Event of Default” has the meaning specified in Section 501.

     “Exchange Act” means the Securities Exchange Act of 1934 and any statute successor thereto, in
each case as amended from time to time.

     “Expiration Date” has the meaning specified in Section 104.

     “Global Security” means a Security that evidences all or part of the Securities of any series
and bears the legend set forth in Section 204 (or such legend as may be specified as contemplated
by Section 301 for such Securities).

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

     “Indenture” means this instrument as originally executed and as it may from time to time be
supplemented or amended by one or more indentures supplemental hereto entered into pursuant to the
applicable provisions hereof, including, for all purposes of this instrument and any such
supplemental indenture, the provisions of the Trust Indenture Act that are deemed to be a part of
and govern this instrument and any such supplemental indenture, respectively. The term “Indenture”
shall also include the terms of particular series of Securities established as contemplated by
Section 301.

     “interest”, when used with respect to an Original Issue Discount Security which by its terms
bears interest only after Maturity, means interest payable after Maturity.

-3-

 

     “Interest Payment Date”, when used with respect to any Security, means the Stated Maturity of
an installment of interest on such Security.

     “Investment Company Act” means the Investment Company Act of 1940 and any statute successor
thereto, in each case as amended from time to time.

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

     “Notice of Default” means a written notice of the kind specified in Section 501(4).

     “Officers’ Certificate” means a certificate signed by the Chairman of the Board, a Vice
Chairman of the Board, the President or a Vice President, and by the principal financial officer,
the Treasurer, an Assistant Treasurer, the Secretary or an Assistant Secretary, of the Company, and
delivered to the Trustee. One of the officers signing an Officers’ Certificate given pursuant to
Section 1004 shall be the principal executive, financial or accounting officer of the Company.

     “Opinion of Counsel” means a written opinion of counsel, who may be counsel for, or an
employee of, the Company, and who shall be reasonably acceptable to the Trustee.

     “Original Issue Discount Security” means any Security which provides for an amount less than
the principal amount thereof to be due and payable upon a declaration of acceleration of the
Maturity thereof pursuant to Section 502.

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

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

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

     (3) Securities as to which Defeasance has been effected pursuant to Section 1302; and

     (4) Securities which have been paid pursuant to Section 306 or in exchange for or in
lieu of which other Securities have been authenticated and delivered pursuant to this
Indenture, other than any such Securities in respect of which there shall have been
presented to the Trustee proof satisfactory to it that such Securities are held by a bona
fide purchaser in whose hands such Securities are valid obligations of the Company;

-4-

 

provided, however, that in determining whether the Holders of the requisite principal amount of the
Outstanding Securities have given, made or taken any request, demand, authorization, direction,
notice, consent, waiver or other action hereunder as of any date, (A) the principal amount of an
Original Issue Discount Security which shall be deemed to be Outstanding shall be the amount of the
principal thereof which would be due and payable as of such date upon acceleration of the Maturity
thereof to such date pursuant to Section 502, (B) if, as of such date, the principal amount payable
at the Stated Maturity of a Security is not determinable, the principal amount of such Security
which shall be deemed to be Outstanding shall be the amount as specified or determined as
contemplated by Section 301, (C) the principal amount of a Security denominated in one or more
foreign currencies or currency units which shall be deemed to be Outstanding shall be the U.S.
dollar equivalent, determined as of such date in the manner provided as contemplated by Section
301, of the principal amount of such Security (or, in the case of a Security described in Clause
(A) or (B) above, of the amount determined as provided in such Clause), and (D) Securities owned by
the Company or any other obligor upon the Securities or any Affiliate of the Company or of such
other obligor shall be disregarded and deemed not to be Outstanding, except that, in determining
whether the Trustee shall be protected in relying upon any such request, demand, authorization,
direction, notice, consent, waiver or other action, only Securities which the Trustee knows to be
so owned shall be so disregarded. Securities so owned which have been pledged in good faith may be
regarded as Outstanding if the pledgee establishes to the satisfaction of the Trustee the pledgee’s
right so to act with respect to such Securities and that the pledgee is not the Company or any
other obligor upon the Securities or any Affiliate of the Company or of such other obligor.

     “Paying Agent” means any Person authorized by the Company to pay the principal of or any
premium or interest on any Securities on behalf of the Company.

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

     “Place of Payment”, when used with respect to the Securities of any series, means the place or
places where the principal of and any premium and interest on the Securities of that series are
payable as specified as contemplated by Section 301.

     “Predecessor Security” of any particular Security means every previous Security evidencing all
or a portion of the same debt as that evidenced by such particular Security; and, for the purposes
of this definition, any Security authenticated and delivered under Section 306 in exchange for or
in lieu of a mutilated, destroyed, lost or stolen Security shall be deemed to evidence the same
debt as the mutilated, destroyed, lost or stolen Security.

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

     “Redemption Price”, when used with respect to any Security to be redeemed, means the price at
which it is to be redeemed pursuant to this Indenture.

     “Regular Record Date” for the interest payable on any Interest Payment Date on the Securities
of any series means the date specified for that purpose as contemplated by Section 301.

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     “Securities” has the meaning stated in the first recital of this Indenture and more
particularly means any Securities authenticated and delivered under this Indenture.

     “Securities Act” means the Securities Act of 1933 and any statute successor thereto, in each
case as amended from time to time.

     “Security Register” and “Security Registrar” have the respective meanings specified in Section
305.

     “Special Record Date” for the payment of any Defaulted Interest means a date fixed by the
Trustee pursuant to Section 307.

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

     “Trustee” means the Person named as the “Trustee” in the first paragraph of this instrument
until a successor Trustee shall have become such pursuant to the applicable provisions of this
Indenture, and thereafter “Trustee” shall mean or include each Person who is then a Trustee
hereunder, and if at any time there is more than one such Person, “Trustee” as used with respect to
the Securities of any series shall mean the Trustee with respect to Securities of that series.

      “Trust Indenture Act” means the Trust Indenture Act of 1939 as in force at the date as of
which this instrument was executed; provided, however, that in the event the Trust Indenture Act of
1939 is amended after such date, “Trust Indenture Act” means, to the extent required by any such
amendment, the Trust Indenture Act of 1939 as so amended.

     “Trust Officer”
 means, with respect to the Trustee, any Vice President, any Assistant Treasurer, any Assistant
Trust Officer, any Trust Officer or any other officer associated with the corporate trust department
of the Trustee customarily performing functions similar to those performed by any of the above designated
 officers and also, means, with respect to a particular corporate
trust matter, any other officer to whom such matter is referred because of that officer’s
knowledge of and familiarity with the particular subject and who shall have direct responsibility
 for the administration of this Indenture.

     “U.S. Government Obligation” has the meaning specified in Section 1304.

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

SECTION 102. Compliance Certificates and Opinions.

     Upon any application or request by the Company to the Trustee to take any action under any
provision of this Indenture, the Company shall furnish to the Trustee  certificates and
opinions as may be required under the Trust Indenture Act or as set
forth herein. Each such certificate or opinion with respect to compliance with a condition or covenant provided
for in this Indenture shall be in form and substance reasonably
satisfactory to the Trustee and  include,

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

-6-

 

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

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

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

SECTION 103. Form of Documents Delivered to Trustee.

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

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

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

SECTION 104. Acts of Holders; Record Dates.

     Any request, demand, authorization, direction, notice, consent, waiver or other action
provided or permitted by this Indenture to be given, made 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. The Trustee shall promptly deliver to
the Company copies of all such instrument or instruments and records delivered to the Trustee. Such
instrument or instruments (and the action embodied therein and evidenced thereby) are herein
sometimes referred to as the “Act” of the Holders signing such instrument or instruments. Proof of
execution of any such instrument or of a writing appointing any such agent shall be sufficient for
any purpose of this Indenture and (subject to Section 601)

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conclusive in favor of the Trustee and the Company, if made in the manner provided in this Section.

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

     The ownership of Securities shall be proved by the Security Register.

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

     The Company may set any day as a record date for the purposes of determining the Holders of
Outstanding Securities of any series entitled to give, make or take any request, demand,
authorization, direction, vote, notice, consent, waiver or other action provided or permitted by
this Indenture to be given, made or taken by Holders of Securities of such series, and determining
whether the requisite proportion of Outstanding Securities held by such Holders have authorized or
agreed or consented to such request, demand, authorization, direction, vote, notice, consent,
waiver or other action (it being understood that with respect to such determination, the
Outstanding Securities shall be computed as of such record date), provided that the Company may not
set a record date for, and the provisions of this paragraph shall not apply with respect to, the
giving or making of any notice, declaration, request or direction referred to in the next
paragraph. If any record date is set pursuant to this paragraph, the Holders of Outstanding
Securities of the relevant series on such record date, and no other Holders, shall be entitled to
take the relevant action, whether or not such Holders remain Holders after such record date;
provided that no such action shall be effective hereunder unless taken on or prior to the
applicable Expiration Date by Holders of the requisite principal amount of Outstanding Securities
of such series on such record date. Nothing in this paragraph shall be construed to prevent the
Company from setting a new record date for any action for which a record date has previously been
set pursuant to this paragraph (whereupon the record date previously set shall automatically and
with no action by any Person be cancelled and of no effect), and nothing in this paragraph shall be
construed to render ineffective any action taken by Holders of the requisite principal amount of
Outstanding Securities of the relevant series on the date such action is taken. Promptly after any
record date is set pursuant to this paragraph, the Company, at its own expense, shall cause notice
of such record date, the proposed action by Holders and the applicable Expiration Date to be given
to the Trustee in writing and to each Holder of Securities of the relevant series in the manner set
forth in Section 106.

     The Trustee may set any day as a record date for the purposes of determining the Holders of
Outstanding Securities of any series entitled to join in the giving or making of (i) any Notice of
Default, (ii) any declaration of acceleration referred to in Section 502, (iii) any request to institute

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proceedings referred to in Section 507(2) or (iv) any direction referred to in Section
512, in each case with respect to Securities of such series, and determining whether the requisite
proportion of Outstanding Securities held by such Holders have authorized or agreed or consented to
such request, demand, authorization, direction, vote, notice, consent, waiver or other action (it
being understood that with respect to such determination, the Outstanding Securities shall be
computed as of such record date). If any record date is set pursuant to this paragraph, the Holders
of Outstanding Securities of such series on such record date, and no other Holders, shall be
entitled to join in such notice, declaration, request or direction, whether or not such Holders
remain Holders after such record date; provided that no such action shall be effective hereunder
unless taken on or prior to the applicable Expiration Date by Holders of the requisite principal
amount of Outstanding Securities of such series on such record date. Nothing in this paragraph
shall be construed to prevent the Trustee from setting a new record date for any action for which a
record date has previously been set pursuant to this paragraph (whereupon the record date
previously set shall automatically and with no action by any Person be cancelled and of no effect),
and nothing in this paragraph shall be construed to render ineffective any action taken by Holders
of the requisite principal amount of Outstanding Securities of the relevant series on the date such
action is taken. Promptly after any record date is set pursuant to this paragraph, the Trustee, at
the Company’s expense, shall cause notice of such record date, the proposed action by Holders and
the applicable Expiration Date to be given to the Company in writing and to each Holder of
Securities of the relevant series in the manner set forth in Section 106.

     With respect to any record date set pursuant to this Section, the party hereto which sets such
record dates may designate any day as the “Expiration Date” and from time to time may change the
Expiration Date to any earlier or later day; provided that no such change shall be effective unless
notice of the proposed new Expiration Date is given to the other party hereto in writing, and to
each Holder of Securities of the relevant series in the manner set forth in Section 106, on or
prior to the existing Expiration Date. If an Expiration Date is not designated with respect to any
record date set pursuant to this Section, the party hereto which set such record date shall be
deemed to have initially designated the 180th day after such record date as the Expiration Date
with respect thereto, subject to its right to change the Expiration Date as provided in this
paragraph. Notwithstanding the foregoing, no Expiration Date shall be later than the 180th day
after the applicable record date.

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

SECTION 105. Notices, Etc., to Trustee and Company.

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

     (1)
the Trustee by any Holder or by the Company shall be sufficient for purposes other than with respect to securities for payment or for registrations of transfer or exchange, if made, given, furnished or filed in writing (or by facsimile transmissions to The Bank of New York Mellon Trust Company, N.A., 700 S. Flower Street., Suite 500, Los Angeles, CA. 90017 Attn: Corporate Trust Administration, Telecopy: (213) 630-6298,  provided that oral confirmation of receipt shall have been received)
to or with the Trustee at its Corporate Trust Office, Attention:
Corporate Trust Administration, or

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     (2)
if, for purposes of Section 305 (with respect to securities for payment or for registrations
of transfer or exchange) to The Bank of New York Mellon, 111
Sanders Creek Parkway, Syracuse, New York 13057, or

     (3) the Company by the Trustee or by any Holder shall be sufficient for every purpose
hereunder (unless otherwise herein expressly provided) if in writing and mailed,
first-class postage prepaid, to the Company addressed to it at the address of its principal
office specified in the first paragraph of this instrument or at any other address
previously furnished in writing to the Trustee by the Company, Attention: General Counsel.

     Notwithstanding
anything to the contrary herein, the Trustee agrees to accept and act
upon instructions or directions pursuant to this Indenture sent by unsecured
e-mail, facsimile transmission or other similar unsecured electronic methods
including “*.pdf” form; provided, however, that (a)
the party providing such written instruction, after such transmission,
promptly provides the originally executed instruction or direction to
the Trustee, (b) such originally executed instruction or direction is
signed by an authorized representative of the party providing such
instruction or direction and (c) such instructions or directions
shall be accompanied by an incumbency certificate listing such
authorized representative, which incumbency certificate shall
be amended whenever a person is to be added or deleted from
the listing. The party providing electronic instructions to the
Trustee and its Affiliates, agents and consultants expressly assumes
any and all risks arising out of the use of any electronic method to
submit instructions and directions to the Trustee, including without limitation
 the risk of the Trustee acting on unauthorized instructions, and the
risk or interception, use or misuse by third parties.

SECTION 106. Notice to Holders; Waiver.

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

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

     Notwithstanding
anything to the contrary contained herein, as long as the Securities are in
 the form of a Global Security, notice to the Holders may be made electronically
in accordance with
procedures of the Depositary.

SECTION 107. Conflict with Trust Indenture Act.

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

SECTION 108. Effect of Headings and Table of Contents.

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

SECTION 109. Successors and Assigns.

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

whether so expressed or not.

-10-

 

SECTION 110. Separability Clause.

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

SECTION 111. Benefits of Indenture.

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

SECTION 112. Governing Law.

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

SECTION 113. Legal Holidays.

     In any case where any Interest Payment Date, Redemption Date or Stated Maturity of any
Security or the last date on which a Holder has the right to convert a Security at a particular
conversion price shall not be a Business Day at any Place of Payment, then (notwithstanding any
other provision of this Indenture or of the Securities (other than a provision of any Security
which specifically states that such provision shall apply in lieu of this Section)) payment of
interest or principal (and premium, if any) or, if applicable to a particular series of Securities,
conversion need not be made at such Place of Payment on such date, but may be made on the next
succeeding Business Day at such Place of Payment with the same force and effect as if made on
the Interest Payment Date or Redemption Date, at the Stated Maturity or on such last day for
conversion, as the case may be.

ARTICLE TWO

Security Forms

SECTION 201. Forms Generally.

     The Securities of each series shall be in substantially the form set forth in this Article, or
in such other form as shall be established by or pursuant to a Board Resolution or in one or more
indentures supplemental hereto, in each case with such appropriate insertions, omissions,
substitutions and other variations as are required or permitted by this Indenture, and may have
such letters, numbers or other marks of identification and such legends or endorsements placed
thereon as may be required to comply with the rules of any securities exchange or Depositary
therefor or as may, consistently herewith, be determined by the officers executing such Securities,
as evidenced by their execution thereof. If the form of Securities of any series is established by
action taken pursuant to a Board Resolution, a copy of an appropriate record of such action shall
be certified by the Secretary or an Assistant Secretary of the Company and delivered to the Trustee
at or prior to the delivery of the Company Order contemplated by Section 303 for the

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authentication and delivery of such Securities. Any such Board Resolution or record of such action shall have
attached thereto a true and correct copy of the form of Security referred to therein approved by or
pursuant to such Board Resolution.

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

SECTION 202. Form of Face of Security.

	 	 	 	 	 
	 

	 	THOMAS WEISEL PARTNERS GROUP,
INC.
	 	Cusip No.                     
	 
	 	 	 	 
	 

	 	[insert title of securities]	 	 

			
	No.          
	 	$     

     Thomas Weisel Partners Group, Inc., a corporation duly organized and existing under the laws
of Delaware (herein called the “Company”, which term includes any successor Person under the
Indenture hereinafter referred to), for value received, hereby promises to pay to      
        , or registered assigns, the principal sum of                               
Dollars on                                     [if the Security is to bear interest prior to
Maturity, insert —, and to pay interest thereon from       or from the most recent Interest
Payment Date to which interest has been paid or duly provided for, semi-annually on      
and       in each year, commencing       , at the rate of      % per annum,
until the principal hereof is paid or made available for payment [if applicable, insert — ,
provided that any principal and premium, and any such installment of interest, which is overdue
shall bear interest at the rate of _____% per annum (to the extent that the payment of such interest
shall be legally enforceable), from the dates such amounts are due until they are paid or
made available for payment, and such interest shall be payable on demand]. The interest so
payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided
in such Indenture, be paid to the Person in whose name this Security (or one or more Predecessor
Securities) is registered at the close of business on the Regular Record Date for such interest,
which shall be the       or            (whether or not a Business Day), as the case may
be, next preceding such Interest Payment Date. Any such interest not so punctually paid or duly
provided for will forthwith cease to be payable to the Holder on such Regular Record Date and may
either be paid to the Person in whose name this Security (or one or more Predecessor Securities) is
registered at the close of business on a Special Record Date for the payment of such Defaulted
Interest to be fixed by the Trustee, notice whereof shall be given to Holders of Securities of this
series not less than 10 days prior to such Special Record Date, or be paid at any time in any other
lawful manner not inconsistent with the requirements of any securities exchange on which the
Securities of this series may be listed, and upon such notice as may be required by such exchange,
all as more fully provided in said Indenture].

     [If the Security is not to bear interest prior to Maturity, insert — The principal of this
Security shall not bear interest except in the case of a default in payment of principal upon
acceleration, upon redemption or at Stated Maturity and in such case the overdue principal and any
overdue premium shall bear interest at the rate of % per annum (to the extent that the payment of
such interest shall be legally enforceable), from the dates such amounts are due until they are
paid or made available for payment. Interest on any overdue principal or premium shall be payable
on demand. [Any such interest on overdue principal or premium which is not paid on demand shall

-12-

 

bear interest at the rate of      % per annum (to the extent that the payment of such interest on
interest shall be legally enforceable), from the date of such demand until the amount so demanded
is paid or made available for payment. Interest on any overdue interest shall be payable on
demand.]]

     Payment of the principal of (and premium, if any) and [if applicable, insert — any such]
interest on this Security will be made at the office or agency of the Company maintained for that
purpose in       , in such coin or currency of the United States of America as at the time
of payment is legal tender for payment of public and private debts [if applicable, insert — ;
provided, however, that at the option of the Company payment of interest may be made by check
mailed to the address of the Person entitled thereto as such address shall appear in the Security
Register].

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

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

     In Witness Whereof, the Company has caused this instrument to be duly executed.

Dated:

	 	 	 	 
	 

	THOMAS WEISEL PARTNERS GROUP, INC.	
	 
	 

	By 	 	
	 

	 	 
	
	Attest:
	 	 	
	                                                  
	 	 	

SECTION 203. Form of Reverse of Security.

     This Security is one of a duly authorized issue of securities of the Company (herein called
the “Securities”), issued and to be issued in one or more series under an Indenture, dated as of                
(herein called the “Indenture”, which term shall have the meaning
assigned to it in such instrument), between the Company and The Bank
of New York Mellon Trust Company, N.A., as Trustee
(herein called the “Trustee”, which term includes any successor trustee under the Indenture), and
reference is hereby made to the Indenture and all indentures supplemental thereto for a statement
of the respective rights, limitations of rights, duties and immunities thereunder of the Company,
the Trustee and the Holders of the Securities and of the terms upon which the Securities are, and
are to be, authenticated and delivered. This Security is one of the series designated on the face
hereof [if applicable, insert — , limited in aggregate principal amount to $      ].

     [If applicable, insert — The Securities of this series are subject to redemption upon not
less than 30 days’ notice by mail, [if applicable, insert — (1) on       in any year

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commencing with the year       and ending with the year       through operation of the
sinking fund for this series at a Redemption Price equal to 100% of the principal amount, and (2)]
at any time [if applicable, insert — on or after       , 20      ], as a whole or in part, at the
election of the Company, at the following Redemption Prices (expressed as percentages of the
principal amount): If redeemed [if applicable, insert — on or before       ,      %, and if
redeemed] during the 12-month period beginning       of the years indicated,

	 	 	 	 	 	 	 
	 	 	Redemption	 	 	 	Redemption
	Year	 	Price	 	Year	 	Price
	 
	 	 	 	 	 	 

and thereafter at a Redemption Price equal to      % of the principal amount, together in the case
of any such redemption [if applicable, insert — (whether through operation of the sinking fund or
otherwise)] with accrued interest to the Redemption Date, but interest installments whose Stated
Maturity is on or prior to such Redemption Date will be payable to the Holders of such Securities,
or one or more Predecessor Securities, of record at the close of business on the relevant Record
Dates referred to on the face hereof, all as provided in the Indenture.]

     [If applicable, insert — The Securities of this series are subject to redemption upon not
less than 30 days’ notice by mail, (1) on       in any year commencing with the year       and
ending with the year            through operation of the sinking fund for this series at the Redemption
Prices for redemption through operation of the sinking fund (expressed as percentages of the
principal amount) set forth in the table below, and (2) at any time [if applicable, insert — on or
after       ], as a whole or in part, at the election of the Company, at the Redemption
Prices for redemption otherwise than through operation of the sinking fund (expressed as
percentages of the principal amount) set forth in the table below: If redeemed during the 12-month
period beginning            of the years indicated,

	 	 	 	 	 
	 	 	Redemption Price	 	 
	 	 	For Redemption	 	Redemption Price For
	 	 	Through Operation	 	Redemption Otherwise
	 	 	of the	 	Than Through Operation
	Year	 	Sinking Fund	 	of the Sinking Fund
	 
	 	 	 	 

and thereafter at a Redemption Price equal to      % of the principal amount, together in the case
of any such redemption (whether through operation of the sinking fund or otherwise) with accrued
interest to the Redemption Date, but interest installments whose Stated Maturity is on or prior to
such Redemption Date will be payable to the Holders of such Securities, or one or more Predecessor
Securities, of record at the close of business on the relevant Record Dates referred to on the face
hereof, all as provided in the Indenture.]

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     [If applicable, insert — Notwithstanding the foregoing, the Company may not, prior to
        , redeem any Securities of this series as contemplated by [if applicable, insert — Clause
(2) of] the preceding paragraph as a part of, or in anticipation of, any refunding operation by the
application, directly or indirectly, of moneys borrowed having an interest cost to the Company
(calculated in accordance with generally accepted financial practice) of less than      % per
annum.]

     [If applicable, insert — The sinking fund for this series provides for the redemption on       
in each year beginning with the year       and ending with the year       of [if
applicable, insert — not less than $       (“mandatory sinking fund”) and not more than] $        aggregate
principal amount of Securities of this series. Securities of this series acquired or redeemed by
the Company otherwise than through [if applicable, insert — mandatory] sinking fund payments may
be credited against subsequent [if applicable, insert — mandatory] sinking fund payments otherwise
required to be made [if applicable, insert — , in the inverse order in which they become due].]

     [If the Security is subject to redemption of any kind, insert — In the event of redemption of
this Security in part only, a new Security or Securities of this series and of like tenor for the
unredeemed portion hereof will be issued in the name of the Holder hereof upon the cancellation
hereof.]

     [If applicable, insert — The Indenture contains provisions for defeasance at any time of [the
entire indebtedness of this Security] [or] [certain restrictive covenants and Events of Default
with respect to this Security] [, in each case] upon compliance with certain conditions set
forth in the Indenture.]

     [If the Security is convertible into Common Stock of the Company, insert — Subject to the
provisions of the Indenture, the Holder of this Security is entitled, at its option, at any time on
or before [insert date] (except that, in case this Security or any portion hereof shall be called
for redemption, such right shall terminate with respect to this Security or portion hereof, as the
case may be, so called for redemption at the close of business on the date fixed for redemption as
provided in the Indenture unless the Company defaults in making the payment due upon redemption),
to convert the principal amount of this Security (or any portion hereof which is $1,000 or an
integral multiple thereof), into fully paid and non-assessable shares (calculated as to each
conversion to the nearest 1/100th of a share) of the Common Stock of the Company, as said shares
shall be constituted at the date of conversion, at the conversion price of $ principal amount of
Securities for each share of Common Stock, or at the adjusted conversion price in effect at the
date of conversion determined as provided in the Indenture, upon surrender of this Security,
together with the conversion notice hereon duly executed, to the Company at the designated office
or agency of the Company in                 , accompanied (if so required by the Company) by
instruments of transfer, in form satisfactory to the Company and to the Trustee, duly executed by
the Holder or by its duly authorized attorney in writing. Such surrender shall, if made during any
period beginning at the close of business on a Regular Record Date and ending at the opening of
business on the Interest Payment Date next following such Regular Record Date (unless this Security
or the portion being converted shall have been called for redemption on a Redemption Date during
such period), also be accompanied by payment in funds acceptable to the Company of an amount equal
to the interest payable on such Interest Payment Date on the principal amount of this Security then
being converted. Subject to the aforesaid requirement for payment and, in the case of a conversion
after the Regular Record Date next preceding any

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 Interest Payment Date and on or before such
Interest Payment Date, to the right of the Holder of this Security (or any Predecessor Security) of
record at such Regular Record Date to receive an installment of interest (with certain exceptions
provided in the Indenture), no adjustment is to be made on conversion for interest accrued hereon
or for dividends on shares of Common Stock issued on conversion. The Company is not required to
issue fractional shares upon any such conversion, but shall make adjustment therefor in cash on the
basis of the current market value of such fractional interest as provided in the Indenture. The
conversion price is subject to adjustment as provided in the Indenture. In addition, the Indenture
provides that in case of certain consolidations or mergers to which the Company is a party or the
sale of substantially all of the assets of the Company, the Indenture shall be amended, without the
consent of any Holders of Securities, so that this Security, if then outstanding, will be
convertible thereafter, during the period this Security shall be convertible as specified above,
only into the kind and amount of securities, cash and other property receivable upon the
consolidation, merger or sale by a holder of the number of shares of Common Stock into which this
Security might have been converted immediately prior to such consolidation, merger or sale
(assuming such holder of Common Stock failed to exercise any rights of election and received per
share the kind and amount received per share by a plurality of non-electing shares) [, assuming if
such consolidation, merger or sale is prior to       , 20   , that this Security were
convertible at the time of such consolidation, merger or sale at the initial conversion price
specified above as adjusted from       , 20    to such time pursuant to the Indenture]. In the
event of conversion of this Security in part only, a new Security or Securities for the unconverted
portion hereof shall be issued in the name of the Holder hereof upon the cancellation hereof.]

     [If the Security is convertible into other securities of the Company, specify the conversion
features.]

     [If the Security is not an Original Issue Discount Security, insert — If an Event of Default
with respect to Securities of this series shall occur and be continuing, the principal of the
Securities of this series may be declared due and payable in the manner and with the effect
provided in the Indenture.]

     [If the Security is an Original Issue Discount Security, insert — If an Event of Default with
respect to Securities of this series shall occur and be continuing, an amount of principal of the
Securities of this series may be declared due and payable in the manner and with the effect
provided in the Indenture. Such amount shall be equal to — insert formula for determining the
amount. Upon payment (i) of the amount of principal so declared due and payable and (ii) of
interest on any overdue principal, premium and interest (in each case to the extent that the
payment of such interest shall be legally enforceable), all of the Company’s obligations in respect
of the payment of the principal of and premium and interest, if any, on the Securities of this
series shall terminate.]

     The Indenture permits, with certain exceptions as therein provided, the amendment thereof and
the modification of the rights and obligations of the Company and the rights of the Holders of the
Securities of each series to be affected under the Indenture at any time by the Company and the
Trustee with the consent of the Holders of more than 50% in principal amount of the Securities at
the time Outstanding of each series to be affected. The Indenture also contains provisions
permitting the Holders of specified percentages in principal amount of the Securities of each
series at the time Outstanding, on behalf of the Holders of all Securities of such series, to waive
compliance by the Company with certain provisions of the Indenture and certain past

-16-

 

defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Security
shall be conclusive and binding upon such Holder and upon all future Holders of this Security and
of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu
hereof, whether or not notation of such consent or waiver is made upon this Security.

     As provided in and subject to the provisions of the Indenture, the Holder of this Security
shall not have the right to institute any proceeding with respect to the Indenture or for the
appointment of a receiver or trustee or for any other remedy thereunder, unless such Holder shall
have previously given the Trustee written notice of a continuing Event of Default with respect to
the Securities of this series, the Holders of not less than 25% in principal amount of the
Securities of this series at the time Outstanding shall have made written request to the Trustee to
institute proceedings in respect of such Event of Default as Trustee and offered the Trustee
reasonable indemnity, and the Trustee shall not have received from the Holders of a majority in
principal amount of Securities of this series at the time Outstanding a direction inconsistent with
such request, and shall have failed to institute any such proceeding, for 60 days after receipt of
such notice, request and offer of indemnity. The foregoing shall not apply to any suit instituted
by the Holder of this Security for the enforcement of any payment of principal hereof or any
premium or interest hereon on or after the respective due dates expressed herein.

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

     As provided in the Indenture and subject to certain limitations therein set forth, the
transfer of this Security is registrable in the Security Register, upon surrender of this Security
for registration of transfer at the office or agency of the Company in any place where the
principal of and any premium and interest on this Security are payable, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the Company and the
Security Registrar duly executed by, the Holder hereof or its attorney duly authorized in writing,
and thereupon one or more new Securities of this series and of like tenor, of authorized
denominations and for the same aggregate principal amount, will be issued to the designated
transferee or transferees.

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

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

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

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

SECTION 204. Form of Legend for Global Securities.

     Unless otherwise specified as contemplated by Section 301 for the Securities evidenced
thereby, every Global Security authenticated and delivered hereunder shall bear a legend in
substantially the following form:

     This Security is a Global Security within the meaning of the Indenture hereinafter referred to
and is registered in the name of a Depositary or a nominee thereof. This Security may not be
exchanged in whole or in part for a Security registered, and no transfer of this Security in whole
or in part may be registered, in the name of any Person other than such Depositary or a nominee
thereof, except in the limited circumstances described in the Indenture.

SECTION 205. Form of Trustee’s Certificate of Authentication.

     The Trustee’s certificates of authentication shall be in substantially the following form:

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

[               ],

THE BANK OF NEW YORK MELLON  TRUST COMPANY, N.A., 

not in its individual capacity, but solely as Trustee

By
 

Authorized Signatory

Dated:  

SECTION 206. Form of Conversion Notice.

     To Thomas Weisel Partners Group, Inc.:

     The undersigned owner of this Security hereby irrevocably exercises the option to convert this
Security, or portion hereof (which is $1,000 or an integral multiple thereof) below designated,
into shares of Common Stock of the Company in accordance with the terms of the Indenture referred
to in this Security, and directs that the shares issuable and deliverable upon the conversion,
together with any check in payment for fractional shares and any Securities representing any
unconverted principal amount hereof, be issued and delivered to the registered holder hereof unless
a different name has been indicated below. If this Notice is being delivered on a date after the
close of business on a Regular Record Date and prior to the opening of business on the related
Interest Payment Date (unless this Security or the portion thereof being converted has been called
for redemption on a Redemption Date within such period), this Notice is accompanied by payment, in
funds acceptable to the Company, of an amount equal to the interest payable on such Interest
Payment Date of the principal of this Security to be converted. If shares are to be issued in the
name of a person other than the undersigned, the undersigned will pay all transfer taxes payable
with respect hereto. Any amount required to be paid by the undersigned on account of interest
accompanies this Security.

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Principal Amount to be Converted

(in an integral multiple of

$1,000, if less than all):

$

Dated
 

	 	 	 	 	 
	 

	 	
 

Signature(s) must be guaranteed by a commercial
bank or trust company or a member firm of a
national stock exchange if shares of Common
Stock are to be delivered, or Securities to be
issued, other than to and in the name of the
registered owner.
	 	 
	 

	 	
 
Signature Guaranty	 	 

     Fill in for registration of shares of Common Stock and Security if to be issued otherwise than
to the registered holder.

	 	 	 
	 

	 	Social Security or other Taxpayer Identification

	
(Name)

	 	
Number  
	 
	 	 
	 

	 	 
	
(Address)
	 	 
	 
	 	 
	
	 	 
	Please print Name and Address

(including zip code number)
	 	 

[The above conversion notice is to be modified, as appropriate, for conversion into other
securities or property of the Company.]

ARTICLE THREE

The Securities

SECTION 301. Amount Unlimited; Issuable in Series.

     The aggregate principal amount of Securities which may be authenticated and delivered under
this Indenture is unlimited.

     The Securities may be issued in one or more series. There shall be established in or pursuant
to a Board Resolution and, subject to Section 303, set forth, or determined in the manner provided,
in an Officers’ Certificate, or established in one or more indentures supplemental hereto, prior to
the issuance of Securities of any series,

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     (1) the title of the Securities of the series (which shall distinguish the Securities
of the series from Securities of any other series);

     (2) any limit upon the aggregate principal amount of the Securities of the series
which may be authenticated and delivered under this Indenture (except for Securities
authenticated and delivered upon registration of transfer of, or in exchange for, or in
lieu of, other Securities of the series pursuant to Section 304, 305, 306, 906 or 1107 and
except for any Securities which, pursuant to Section 303, are deemed never to have been
authenticated and delivered hereunder);

     (3) the Person to whom any interest on a Security of the series shall be payable, if
other than the Person in whose name that Security (or one or more Predecessor Securities)
is registered at the close of business on the Regular Record Date for such interest;

     (4) the date or dates on which the principal of any Securities of the series is
payable;

     (5) the rate or rates at which any Securities of the series shall bear interest, if
any, the date or dates from which any such interest shall accrue, the Interest Payment
Dates on which any such interest shall be payable and the Regular Record Date for any such
interest payable on any Interest Payment Date;

     (6) the place or places where the principal of and any premium and interest on any
Securities of the series shall be payable;

     (7) the period or periods within which, the price or prices at which and the terms and
conditions upon which any Securities of the series may be redeemed, in whole or in part, at
the option of the Company and, if other than by a Board Resolution, the manner in which any
election by the Company to redeem the Securities shall be evidenced;

     (8) the obligation, if any, of the Company to redeem or purchase any Securities of the
series pursuant to any sinking fund or analogous provisions or at the option of the Holder
thereof and the period or periods within which, the price or prices at which and the terms
and conditions upon which any Securities of the series shall be redeemed or purchased, in
whole or in part, pursuant to such obligation;

     (9) if other than denominations of $1,000 and any integral multiple thereof, the
denominations in which any Securities of the series shall be issuable;

     (10) if the amount of principal of or any premium or interest on any Securities of the
series may be determined with reference to an index or pursuant to a formula, the manner in
which such amounts shall be determined;

     (11) if other than the currency of the United States of America, the currency,
currencies or currency units in which the principal of or any premium or interest on any
Securities of the series shall be payable and the manner of determining the equivalent

-20-

 

thereof in the currency of the United States of America for any purpose, including for
purposes of the definition of “Outstanding” in Section 101;

     (12) if the principal of or any premium or interest on any Securities of the series is
to be payable, at the election of the Company or the Holder thereof, in one or more
currencies or currency units other than that or those in which such Securities are stated
to be payable, the currency, currencies or currency units in which the principal of or any
premium or interest on such Securities as to which such election is made shall be payable,
the periods within which and the terms and conditions upon which such election is to be
made and the amount so payable (or the manner in which such amount shall be determined);

     (13) if other than the entire principal amount thereof, the portion of the principal
amount of any Securities of the series which shall be payable upon declaration of
acceleration of the Maturity thereof pursuant to Section 502;

     (14) if the principal amount payable at the Stated Maturity of any Securities of the
series will not be determinable as of any one or more dates prior to the Stated Maturity,
the amount which shall be deemed to be the principal amount of such Securities as of any
such date for any purpose thereunder or hereunder, including the principal amount thereof
which shall be due and payable upon any Maturity other than the Stated Maturity or which
shall be deemed to be Outstanding as of any date prior to the Stated Maturity (or, in any
such case, the manner in which such amount deemed to be the principal amount shall be
determined);

     (15) if applicable, that the Securities of the series, in whole or any specified part,
shall be defeasible pursuant to Section 1302 or Section 1303 or both such Sections and, if
other than by a Board Resolution, the manner in which any election by the Company to
defease such Securities shall be evidenced;

     (16) the terms of any right to convert Securities of the series into shares of Common
Stock of the Company or other securities or property;

     (17) if applicable, that any Securities of the series shall be issuable in whole or in
part in the form of one or more Global Securities and, in such case, the respective
Depositaries for such Global Securities, the form of any legend or legends which shall be
borne by any such Global Security in addition to or in lieu of that set forth in Section
204 and any circumstances in addition to or in lieu of those set forth in Clause (2) of the
last paragraph of Section 305 in which any such Global Security may be exchanged in whole
or in part for Securities registered, and any transfer of such Global Security in whole or
in part may be registered, in the name or names of Persons other than the Depositary for
such Global Security or a nominee thereof;

     (18) any addition to or change in the Events of Default which applies to any
Securities of the series and any change in the right of the Trustee or the requisite
Holders of such Securities to declare the principal amount thereof due and payable pursuant
to Section 502;

-21-

 

     (19) any addition to or change in the covenants set forth in Article Ten which applies
to Securities of the series; and

     (20) any other terms of the series (which terms shall not be inconsistent with the
provisions of this Indenture, except as permitted by Section 901(5)).

     All Securities of any one series shall be substantially identical except as to denomination
and except as may otherwise be provided in or pursuant to the Board Resolution referred to above
and (subject to Section 303) set forth, or determined in the manner provided, in the Officers’
Certificate referred to above or in any such indenture supplemental hereto.

     If any of the terms of the series are established by action taken pursuant to a Board
Resolution, a copy of an appropriate record of such action shall be certified by the Secretary or
an Assistant Secretary of the Company and delivered to the Trustee at or prior to the delivery of
the Officers’ Certificate setting forth the terms of the series.

SECTION 302. Denominations.

     The Securities of each series shall be issuable only in registered form without coupons and
only in such denominations as shall be specified as contemplated by Section 301. In the absence of
any such specified denomination with respect to the Securities of any series, the Securities of
such series shall be issuable in denominations of $1,000 and any integral multiple thereof.

SECTION 303. Execution, Authentication, Delivery and Dating.

     The Securities shall be executed on behalf of the Company by its Chairman of the Board, its
Vice Chairman of the Board, its principal executive officer, its President or one of its Vice
Presidents, attested by its Secretary or one of its Assistant Secretaries. The signature of any of
these officers on the Securities may be manual or facsimile.

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

     At any time and from time to time after the execution and delivery of this Indenture, the
Company may deliver Securities of any series executed by the Company to the Trustee for
authentication, together with a Company Order for the authentication and delivery of such
Securities, and the Trustee in accordance with the Company Order shall authenticate and deliver
such Securities. If the form or terms of the Securities of the series have been established by or
pursuant to one or more Board Resolutions as permitted by Sections 201 and 301, in authenticating
such Securities, and accepting the additional responsibilities under this Indenture in relation to
such Securities, the Trustee shall be entitled to receive, and (subject to Section 601) shall be
fully protected in relying upon, an Opinion of Counsel stating,

     (1) if the form of such Securities has been established by or pursuant to Board
Resolution as permitted by Section 201, that such form has been established in conformity
with the provisions of this Indenture;

-22-

 

     (2) if the terms of such Securities have been established by or pursuant to Board
Resolution as permitted by Section 301, that such terms have been established in conformity
with the provisions of this Indenture; and

     (3) that such Securities, when authenticated and delivered by the Trustee and issued
by the Company in the manner and subject to any conditions specified in such Opinion of
Counsel, will constitute valid and legally binding obligations of the Company enforceable
in accordance with their terms, subject to bankruptcy, insolvency, fraudulent transfer,
reorganization, moratorium and similar laws of general applicability relating to or
affecting creditors’ rights and to general equity principles.

If such form or terms have been so established, the Trustee shall not be required to authenticate
such Securities if the issue of such Securities pursuant to this Indenture will affect the
Trustee’s own rights, duties or immunities under the Securities and this Indenture or otherwise in
a manner which is not reasonably acceptable to the Trustee.

     Notwithstanding the provisions of Section 301 and of the preceding paragraph, if all
Securities of a series are not to be originally issued at one time, it shall not be necessary to
deliver the Officers’ Certificate otherwise required pursuant to Section 301 or the Company Order
and Opinion of Counsel otherwise required pursuant to such preceding paragraph at or prior to the
authentication of each Security of such series if such documents are delivered at or prior to the
authentication upon original issuance of the first Security of such series to be issued.

     Each Security shall be dated the date of its authentication.

     No Security shall be entitled to any benefit under this Indenture or be valid or obligatory
for any purpose unless there appears on such Security a certificate of authentication substantially
in the form provided for herein executed by the Trustee by manual signature, and such certificate
upon any Security shall be conclusive evidence, and the only evidence, that such Security has been
duly authenticated and delivered hereunder. Notwithstanding the foregoing, if any Security shall
have been authenticated and delivered hereunder but never issued and sold by the Company, and the
Company shall deliver such Security to the Trustee for cancellation as provided in Section 309, for
all purposes of this Indenture such Security shall be deemed never to have been authenticated and
delivered hereunder and shall never be entitled to the benefits of this Indenture.

SECTION 304. Temporary Securities.

     Pending the preparation of definitive Securities of any series, the Company may execute, and
upon Company Order the Trustee shall authenticate and deliver, temporary Securities which are
printed, lithographed, typewritten, mimeographed or otherwise produced, in any authorized
denomination, substantially of the tenor of the definitive Securities in lieu of which they are
issued and with such appropriate insertions, omissions, substitutions and other variations as the
officers executing such Securities may determine, as evidenced by their execution of such
Securities.

     If temporary Securities of any series are issued, the Company will cause definitive Securities
of that series to be prepared without unreasonable delay. After the preparation of definitive
Securities of such series, the temporary Securities of such series shall be exchangeable for
definitive Securities of such series upon surrender of the temporary Securities of such series at

-23-

 

the office or agency of the Company in a Place of Payment for that series, without charge to
the Holder. Upon surrender for cancellation of any one or more temporary Securities of any series,
the Company shall execute and the Trustee shall authenticate and deliver in exchange therefor one
or more definitive Securities of the same series, of any authorized denominations and of like tenor
and aggregate principal amount. Until so exchanged, the temporary Securities of any series shall in
all respects be entitled to the same benefits under this Indenture as definitive Securities of such
series and tenor.

SECTION 305. Registration; Registration of Transfer and Exchange.

     The Company shall cause to be kept at the Corporate Trust Office of the Trustee a register
(the register maintained in such office and in any other office or agency of the Company in a
Place of Payment being herein sometimes collectively referred to as the “Security Register”) in
which, subject to such reasonable regulations as it may prescribe, the Company shall provide for
the registration of Securities and of transfers of Securities. The Trustee is hereby appointed
“Security Registrar” for the purpose of registering Securities and transfers of Securities as
herein provided.

     Upon surrender for registration of transfer of any Security of a series at the office or
agency of the Company in a Place of Payment for that series, the Company shall execute, and the
Trustee shall authenticate and deliver, in the name of the designated transferee or transferees,
one or more new Securities of the same series, of any authorized denominations and of like tenor
and aggregate principal amount.

     At the option of the Holder, Securities of any series may be exchanged for other Securities of
the same series, of any authorized denominations and of like tenor and aggregate principal amount,
upon surrender of the Securities to be exchanged at the office or agency of the Company in a Place
of Payment for that series. Whenever any Securities are so surrendered for exchange, the Company
shall execute, and the Trustee shall authenticate and deliver, the Securities which the Holder
making the exchange is entitled to receive.

     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.

     Every Security presented or surrendered for registration of transfer or for exchange shall (if
so required by the Company or the Trustee) be duly endorsed, or be accompanied by a written
instrument of transfer in form satisfactory to the Company and the Security Registrar duly
executed, by the Holder thereof or its attorney duly authorized in writing.

     No service charge shall be made for any registration of transfer or exchange of Securities,
but the Company may require payment of a sum sufficient to cover any tax or other governmental
charge that may be imposed in connection with any registration of transfer or exchange of
Securities, other than exchanges pursuant to Section 304, 906 or 1107 not involving any transfer.

     If the Securities of any series (or of any series and specified tenor) are to be redeemed in
part, the Company shall not be required (A) to issue, register the transfer of or exchange any
Securities of that series (or of that series and specified tenor, as the case may be) during a
period beginning at the opening of business 15 days before the day of the mailing of a notice of

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redemption of any such Securities selected for redemption under Section 1103 and ending at the
close of business on the day of such mailing, or (B) to register the transfer of or exchange any
Security so selected for redemption in whole or in part, except the unredeemed portion of any
Security being redeemed in part.

     The provisions of Clauses (1), (2), (3) and (4) below shall apply only to Global Securities:

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

     (2) Notwithstanding any other provision in this Indenture, no Global Security may be
exchanged in whole or in part for Securities registered, and no transfer of a Global
Security in whole or in part may be registered, in the name of any Person other than the
Depositary for such Global Security or a nominee thereof unless (A) such Depositary (i) has
notified the Company that it is unwilling or unable to continue as Depositary for such
Global Security or (ii) has ceased to be a clearing agency registered under the Exchange
Act, (B) there shall have occurred and be continuing an Event of Default with respect to
such Global Security or (C) there shall exist such circumstances, if any, in addition to or
in lieu of the foregoing as have been specified for this purpose as contemplated by Section
301.

     (3) Subject to Clause (2) above, any exchange of a Global Security for other
Securities may be made in whole or in part, and all Securities issued in exchange for a
Global Security or any portion thereof shall be registered in such names as the Depositary
for such Global Security shall direct.

     (4) Every Security authenticated and delivered upon registration of transfer of, or in
exchange for or in lieu of, a Global Security or any portion thereof, whether pursuant to
this Section, Section 304, 306, 906 or 1107 or otherwise, shall be authenticated and
delivered in the form of, and shall be, a Global Security, unless such Security is
registered in the name of a Person other than the Depositary for such Global Security or a
nominee thereof.

SECTION 306. Mutilated, Destroyed, Lost and Stolen Securities.

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

     If there shall be delivered to the Company and the Trustee (i) evidence to their satisfaction
of the destruction, loss or theft of any Security and (ii) such security or indemnity as may be
required by them to save each of them and any agent of either of them harmless, then, in the
absence of notice to the Company or the Trustee that such Security has been acquired by a bona fide
purchaser, the Company shall execute and the Trustee shall authenticate and deliver, in

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lieu of any such destroyed, lost or stolen Security, a new Security of the same series and 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 of any series 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 of that series 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 307. Payment of Interest; Interest Rights Preserved.

     Except as otherwise provided as contemplated by Section 301 with respect to any series of
Securities, interest on any Security which is payable, and is punctually paid or duly provided for,
on any Interest Payment Date shall be paid to the Person in whose name that Security (or one or
more Predecessor Securities) is registered at the close of business on the Regular Record Date for
such interest.

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

     (1) The Company may elect to make payment of any Defaulted Interest to the Persons in
whose names the Securities of such series (or their respective Predecessor Securities) are
registered at the close of business on a Special Record Date for the payment of such
Defaulted Interest, which shall be fixed in the following manner. The Company shall notify
the Trustee in writing of the amount of Defaulted Interest proposed to be paid on each
Security of such series and the date of the proposed payment, and at the same time the
Company shall deposit with the Trustee an amount of money equal to the aggregate amount
proposed to be paid in respect of such Defaulted Interest or shall make arrangements
satisfactory to the Trustee for such deposit prior to the date of the proposed payment,
such money when deposited to be held in trust for the benefit of the Persons entitled to
such Defaulted Interest as in this Clause provided. Thereupon the Trustee shall fix a
Special Record Date for the payment of such Defaulted Interest which shall be not more than
15 days and not less than 10 days prior to the date of the proposed

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payment and not less than 10 days after the receipt by the Trustee of the notice of
the proposed payment. The Trustee shall promptly notify the Company of such Special Record
Date and, in the name and at the expense of the Company, shall cause notice of the proposed
payment of such Defaulted Interest and the Special Record Date therefor to be given to each
Holder of Securities of such series in the manner set forth in Section 106, not less than
10 days prior to such Special Record Date. Notice of the proposed payment of such Defaulted
Interest and the Special Record Date therefor having been so mailed, such Defaulted
Interest shall be paid to the Persons in whose names the Securities of such series (or
their respective Predecessor Securities) are registered at the close of business on such
Special Record Date and shall no longer be payable pursuant to the following Clause (2).

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

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

     Subject to the provisions of Section 1402, in the case of any Security (or any part thereof)
which is converted after any Regular Record Date and on or prior to the next succeeding Interest
Payment Date (other than any Security the principal of (or premium, if any, on) which shall become
due and payable, whether at Stated Maturity or by declaration of acceleration prior to such
Interest Payment Date), interest whose Stated Maturity is on such Interest Payment Date shall be
payable on such Interest Payment Date notwithstanding such conversion and such interest (whether or
not punctually paid or duly provided for) shall be paid to the Person in whose name that Security
(or any one or more Predecessor Securities) is registered at the close of business on such Regular
Record Date. Except as otherwise expressly provided in the immediately preceding sentence or in
Section 1402, in the case of any Security (or any part thereof) which is converted, interest whose
Stated Maturity is after the date of conversion of such Security (or such part thereof) shall not
be payable.

SECTION 308. Persons Deemed Owners.

     Prior to due presentment of a Security for registration of transfer, the Company, the Trustee
and any agent of the Company or the Trustee may treat the Person in whose name such Security is
registered as the owner of such Security for the purpose of receiving payment of principal of and
any premium and (subject to Section 307) any interest on such Security and for all other purposes
whatsoever, whether or not such Security be overdue, and neither the Company, the Trustee nor any
agent of the Company or the Trustee shall be affected by notice to the contrary.

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SECTION 309. Cancellation.

     All Securities surrendered for payment, redemption, registration of transfer or exchange or
for credit against any sinking fund payment shall, if surrendered to any Person other than the
Trustee, be delivered to the Trustee and shall be promptly cancelled by it. The Company may at any
time deliver to the Trustee for cancellation any Securities previously authenticated and delivered
hereunder which the Company may have acquired in any manner whatsoever, and may deliver to the
Trustee (or to any other Person for delivery to the Trustee) for cancellation any Securities
previously authenticated hereunder which the Company has not issued and sold, and all Securities so
delivered shall be promptly cancelled by the Trustee. No Securities shall be authenticated in lieu
of or in exchange for any Securities cancelled as provided in this Section, except as expressly
permitted by this Indenture. All cancelled Securities held by the Trustee shall be disposed of as
directed by a Company Order.

SECTION 310. Computation of Interest.

     Except as otherwise specified as contemplated by Section 301 for Securities of any series,
interest on the Securities of each series shall be computed on the basis of a 360-day year of
twelve 30-day months.

ARTICLE FOUR

Satisfaction and Discharge

SECTION 401. Satisfaction and Discharge of Indenture.

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

     (1) either

     (A) all Securities theretofore authenticated and delivered (other than (i)
Securities which have been destroyed, lost or stolen and which have been replaced
or paid as provided in Section 306 and (ii) Securities for whose payment money has
theretofore been deposited in trust or segregated and held in trust by the Company
and thereafter repaid to the Company or discharged from such trust, as provided in
Section 1003) have been delivered to the Trustee for cancellation; or

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

     (i) have become due and payable, or

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

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

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

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

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

     Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the
Company to the Trustee under Section 607, the obligations of the Trustee to any Authenticating
Agent under Section 614 and, if money shall have been deposited with the Trustee pursuant to
subclause (B) of Clause (1) of this Section, the obligations of the Trustee under Section 402 and
the last paragraph of Section 1003 shall survive.

SECTION 402. Application of Trust Money.

     Subject to the provisions of the last paragraph of Section 1003, all money deposited with the
Trustee pursuant to Section 401 shall be held in trust and applied by it, in accordance with the
provisions of the Securities and this Indenture, to the payment, either directly or through any
Paying Agent (including the Company acting as its own Paying Agent) as the Trustee may determine,
to the Persons entitled thereto, of the principal and any premium and interest for whose payment
such money has been deposited with the Trustee.

ARTICLE FIVE

Remedies

SECTION 501. Events of Default.

     “Event of Default”, wherever used herein with respect to Securities of any series, means any
one of the following events (whatever the reason for such Event of Default and whether it shall be
voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree or
order of any court or any order, rule or regulation of any administrative or governmental body):

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

     (2) default in the payment of the principal of or any premium on any Security of that
series at its Stated Maturity; or

     (3) default in the deposit of any sinking fund payment, when and as due by the terms
of a Security of that series; or

     (4) default in the performance, or breach, of any covenant or warranty of the Company
in this Indenture (other than a covenant or warranty a default in whose performance or
whose breach is elsewhere in this Section specifically dealt with or which has expressly
been included in this Indenture solely for the benefit of series of Securities other than
that series), and continuance of such default or breach for a period of 60 days after
actual receipt by the Company of 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, which notice 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 aggregate
principal amount of the Outstanding Securities of that series; or

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

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     (6) the commencement by the Company of a voluntary case or proceeding under any
applicable Federal or State bankruptcy, insolvency, reorganization or other similar law or
of any other case or proceeding to be adjudicated a bankrupt or insolvent, or the consent
by it to the entry of a decree or order for relief in respect of the Company in an
involuntary case or proceeding under any applicable Federal or State bankruptcy,
insolvency, reorganization or other similar law or to the commencement of any bankruptcy or
insolvency case or proceeding against it, or the filing by it of a petition or answer or
consent seeking reorganization or relief under any applicable Federal or State law, or the
consent by it to the filing of such petition or to the appointment of or taking possession
by a custodian, receiver, liquidator, assignee, trustee, sequestrator or other similar
official of the Company or of any substantial part of its property, or the making by it of
an assignment for the benefit of creditors, or the admission by it in writing of its
inability to pay its debts generally as they become due, or the taking of corporate action
by the Company in furtherance of any such action; or

     (7) any other Event of Default provided with respect to Securities of that series.

SECTION 502. Acceleration of Maturity; Rescission and Annulment.

     If an Event of Default (other than an Event of Default specified in Section 501(6) or 501(7))
with respect to Securities of any series at the time Outstanding occurs and is continuing, then in
every such case the Trustee or the Holders of not less than 25% in principal amount of the
Outstanding Securities of that series may declare the principal amount of all the Securities of
that series (or, if any Securities of that series are Original Issue Discount Securities, such
portion of the principal amount of such Securities as may be specified by the terms thereof) to be
due and payable immediately, by a notice in writing to the Company (and to the Trustee if given by
Holders), and upon any such declaration such principal amount (or specified amount) shall become
immediately due and payable. If an Event of Default specified in Section 501(6) or 501(7) with
respect to Securities of any series at the time Outstanding occurs, the principal amount of all the
Securities of that series (or, if any Securities of that series are Original Issue Discount
Securities, such portion of the principal amount of such Securities as may be specified by the
terms thereof) shall automatically, and without any declaration or other action on the part of the
Trustee or any Holder, become immediately due and payable.

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

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

     (A) all overdue interest on all Securities of that series,

     (B) the principal of (and premium, if any, on) any Securities of that series
which have become due otherwise than by such declaration of acceleration and any
interest thereon at the rate or rates prescribed therefor in such Securities,

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     (C) to the extent that payment of such interest is lawful, interest upon
overdue interest at the rate or rates prescribed therefor in such Securities, and

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

     and

     (2) all Events of Default with respect to Securities of that series, other than the
non-payment of the principal of Securities of that series which have become due solely by
such declaration of acceleration, have been cured or waived as provided in Section 513.

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

SECTION 503. Collection of Indebtedness and Suits for Enforcement by Trustee.

     The Company covenants that if

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

     (2) default is made in the payment of the principal of (or premium, if any, on) any
Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the Holders of such
Securities, the whole amount then due and payable on such Securities for principal and any premium
and interest and, to the extent that payment of such interest shall be legally enforceable,
interest on any overdue principal and premium and on any overdue interest, at the rate or rates
prescribed therefor in such Securities, and, in addition thereto, such further amount as shall be
sufficient to cover the costs and expenses of collection, including the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel.

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

SECTION 504. Trustee May File Proofs of Claim.

     In case of any judicial proceeding relative to the Company (or any other obligor upon the
Securities), its property or its creditors, the Trustee shall be entitled and empowered, by
intervention in such proceeding or otherwise, to take any and all actions authorized under the
Trust Indenture Act in order to have claims of the Holders and the Trustee allowed in any such
proceeding. In particular, the Trustee shall be authorized to collect and receive any moneys or

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other property payable or deliverable on any such claims and to distribute the same; and any
custodian, receiver, assignee, trustee, liquidator, sequestrator or other similar official in any
such judicial proceeding is hereby authorized by each Holder to make such payments to the Trustee
and, in the event that the Trustee shall consent to the making of such payments directly to the
Holders, to pay to the Trustee any amount due it for the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the
Trustee under Section 607.

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

SECTION 505. Trustee May Enforce Claims Without Possession of Securities.

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

SECTION 506. Application of Money Collected.

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

          First: To the payment of all amounts due the Trustee under Section 607; and

     Second:
To the payment first,  of the amounts then due and unpaid for principal of
and any premium, if any, and second, interest on the Securities in respect of which or for the
benefit of which such money has been collected, ratably, without preference or priority of
any kind, according to the amounts due and payable on such Securities for principal and any
premium, if any, and interest, respectively.

SECTION 507. Limitation on Suits.

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

     (1)
such Holder has previously given written notice to the Trustee as
required hereunder of a continuing
Event of Default with respect to the Securities of that series;

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

     (3)
such Holder or Holders have properly indemnified  the Trustee
satisfactory to the Trustee, in its sole discretion,
against all costs, expenses and liabilities to be incurred in compliance with such request;

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

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

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

SECTION 508. Unconditional Right of Holders to Receive Principal, Premium and Interest and to
Convert.

     Notwithstanding any other provision in this Indenture, the Holder of any Security shall have
the right, which is absolute and unconditional, to receive payment of the principal of and any
premium and (subject to Section 307) interest on such Security on the respective Stated Maturities
expressed in such Security (or, in the case of redemption, on the Redemption Date), to convert such
Securities in accordance with Article Fourteen and to institute suit for the enforcement of any
such payment, and such rights shall not be impaired without the consent of such Holder.

SECTION 509. Restoration of Rights and Remedies.

     If the Trustee or any Holder has instituted any proceeding to enforce any right or remedy
under this Indenture and such proceeding has been discontinued or abandoned for any reason, or has
been determined adversely to the Trustee or to such Holder, then and in every such case, subject to
any determination in such proceeding, the Company, the Trustee and the Holders shall be restored
severally and respectively to their former positions hereunder and thereafter all rights and
remedies of the Trustee and the Holders shall continue as though no such proceeding had been
instituted.

SECTION 510. Rights and Remedies Cumulative.

     Except as otherwise provided with respect to the replacement or payment of mutilated,
destroyed, lost or stolen Securities in the last paragraph of Section 306, no right or remedy
herein conferred upon or reserved to the Trustee or to the Holders is intended to be exclusive of
any other right or remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or now or hereafter

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existing at law or in equity or otherwise. The assertion or employment of any right or remedy
hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other
appropriate right or remedy.

SECTION 511. Delay or Omission Not Waiver.

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

SECTION 512. Control by Holders.

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

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

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

SECTION 513. Waiver of Past Defaults.

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

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

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

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

SECTION 514. Undertaking for Costs.

     All
parties to this Indenture expressly agree, and each Holder of any Security by
his or her acceptance thereof shall be deemed to have agreed, that any court
may in its discretion require, in

 any suit for the enforcement of any right or remedy under this Indenture, or in any suit
against the Trustee for any action taken, suffered or omitted by it
as Trustee, the filing by
any party litigant in such suit of an undertaking to pay the costs of such suit, and that
 such court may in its discretion assess reasonable costs, including reasonable attorneys’
 fees and expenses,

 against any 

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party litigant in such suit, having due regard to the merits and good faith of the claims or defenses made by such party litigant; but the provisions of this Section 514 shall not apply to  any suit
instituted by the Trustee, to any suit instituted by any Holder or group of Holders, holding in the aggregate more than ten percent (10%) in aggregate principal amount of the Outstanding Securities, or to any suit instituted by any Holder for the enforcement of the payment of the principal of or any premium on the Security after the Stated Maturity or any interest (including any additional interest) on any Security after it is due and payable.

SECTION 515. Waiver of Usury, Stay or Extension Laws.

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

ARTICLE SIX

The Trustee

SECTION 601. Certain Duties and Responsibilities.

     (a) The Trustee hereby accepts the trusts imposed on it by this Indenture and unless otherwise provided herein, the duties and responsibilities of the Trustee shall be as provided by the Trust Indenture
Act. Whether or not expressly so provided, every provision of this Indenture relating to the conduct or affecting the liability of or affording protection to the Trustee is subject to this Article.  Notwithstanding anything to the contrary herein or in the Trust Indenture Act, no provision of this Indenture shall require the Trustee to
expend or risk its own funds or otherwise incur any financial liability in the performance of any
of its duties hereunder, or in the exercise of any of its rights or powers, if it shall have
reasonable grounds for believing that repayment of such funds or
adequate bond or indemnity and security against such
risk or liability is not reasonably assured to it.

     (b) Except during the continuance of an Event of Default, the Trustee undertakes to perform
such duties and only such duties as are specifically set forth in this Indenture, and no implied
covenants or obligations shall be read into this Indenture against the Trustee.

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

     (d) No provision of this Indenture shall be construed to relieve the Trustee from liability
for its own negligent action, its own negligent failure to act, or its own willful misconduct,
except that:

     (i) this Subsection shall not be construed to limit the effect of Subsection (a) 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 shall be proved that the Trustee was negligent in
ascertaining the pertinent facts; and

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     (iii) the Trustee shall not be liable with respect to any action taken or omitted to
be taken by it in good faith in accordance with the direction of the Holders of a majority
in principal amount of the Outstanding Securities relating to the time, method and place of
conducting any proceeding for any remedy available to the Trustee, or exercising any trust
or power conferred upon the Trustee, under this Indenture.

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

SECTION 602. Notice of Default.

     If
a default occurs hereunder with respect to Securities of any series,
and is continuing and is known to  the Trustee   as provided
herein, the Trustee will give
the Holders of Securities of such series notice of such default as and to the extent provided by
the Trust Indenture Act; provided, however, that in the case of any default of the character
specified in Section 501(4) with respect to Securities of such series, no such notice to Holders
shall be given until at least 30 days after the occurrence thereof. For the purpose of this
Section, the term “default” means any event which is, or after notice or lapse of time or both
would become, an Event of Default with respect to Securities of such series.

SECTION 603. Certain Rights of Trustee.

Subject to the provisions of Section 601:

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

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

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

     (4)
the Trustee may consult with experts and with legal counsel 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;

     (5) 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

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or indemnity or bond with security that is satisfactory to the Trustee against the costs, expenses and liabilities which
might be incurred by it in compliance with such request or direction;

     (6) 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;

     (7) the Trustee may execute any of the trusts or powers hereunder and perform any
duty hereunder, either directly or by or through its agents, attorneys, accountants, custodians or other experts
 and the Trustee shall
not be answerable, accountable, responsible or liable for any misconduct, default, negligence or neglect  on the part of any agent,
attorney, accountants, custodians or other experts if reasonable care has been exercised in the
appointment;

     (8) 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;

     (9) the Trustee shall not be deemed to have notice of any Default or Event of Default
unless a Trust Officer 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 and in the absence of the receipt of such notice or actual knowledge, the Trustee may conclusively
be deemed to have no knowledge thereof;

     (10) 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, attorney, accountant,
custodian and other Person employed to act hereunder; and

     (11) the Trustee may request that the Company deliver an Officers’ Certificate or other certificate setting
forth the names of individuals and/or titles of officers authorized at such time to take
specified actions pursuant to this Indenture, which Officers’ Certificate may be signed by
any person authorized to sign an Officers’ Certificate, including any person specified as
so authorized in any such certificate previously delivered and not superseded.

SECTION 604. Not Responsible for Recitals or Issuance of Securities.

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

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SECTION 605. May Hold Securities and Act as Trustee Under Other Indentures.

     The Trustee, any Authenticating Agent, any Paying Agent, any Security Registrar or any other
agent of the Company, in its individual or any other capacity, may become the owner or pledgee of
Securities and, subject to Sections 608 and 613, may otherwise deal with the Company with the same
rights it would have if it were not Trustee, Authenticating Agent, Paying Agent, Security Registrar
or such other agent.

     Subject to the limitations imposed by the Trust Indenture Act, nothing in this Indenture shall
prohibit the Trustee from becoming and acting as trustee under other indentures under which other
securities, or certificates of interest of participation in other securities, of the Company are
outstanding in the same manner as if it were not Trustee hereunder.

SECTION 606. Money Held in Trust.

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

     The Trustee shall be under no duty (a) to file or record, or cause to be filed or recorded, this
Indenture or any instrument supplemental hereto, (b) to procure any further order or additional
instruments of further assurance, (c) to see to the delivery to it of any personal property
intended to be mortgaged or pledged hereunder or thereunder, (d) to do any act which may be
suitable to be done for the better maintenance of the lien or security hereof, or (e) to give
notice of the existence of such lien, or for extending or supplementing the same or to see that any
rights to the Trust estate and funds now or hereafter to be transferred in trust hereunder are
subject to the lien hereof.

SECTION 607. Compensation and Reimbursement.

The Company agrees

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

     (2) the compensation of the Trustee shall not be limited to or by any provision of law in regard to
the compensation of trustees of an express trust;

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

     (4) to indemnify the Trustee, and its officers, directors, agents and employees, for, and to hold them harmless against, any
and all losses, liabilities, damages, claims (whether or not litigated) or expenses including taxes (other than taxes based upon, measured
by or determined by the income of the Trustee) incurred without negligence or bad faith on
their part, arising out of or in connection with the acceptance or administration of the
trust or trusts hereunder, including the costs and expenses of defending themselves against any
claim (whether asserted by the Company, any Holder or any other person) or liability in
connection with the exercise or performance of any of its powers or duties hereunder arising from the trust estate;

     (5) that in no event shall the Trustee be responsible 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; and

     (6) that the Trustee shall have a lien prior to the Securities as to all property and funds held by it
hereunder for any amount owing it or any predecessor Trustee pursuant to this Section 607 for such compensation, expenses, advances and counsel fees incurred in or about the execution
of the trusts created hereby. The Trustee’s rights to receive compensation, reimbursement and
indemnification of money due and owing hereunder at the time of the Trustee’s resignation or
removal shall survive the Trustee’s resignation or removal and the termination of this Indenture
and related financing and security documents.

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     When the Trustee incurs expenses or renders services in connection with an Event of Default
specified in Section 501(6) or Section 501(7), the expenses (including the reasonable charges and
expenses of its counsel) and the compensation for the services are intended to constitute expenses
of administration under any applicable Federal or state 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.

SECTION 608. Conflicting Interests.

     If the Trustee has or shall acquire a conflicting interest within the meaning of the Trust
Indenture Act, the Trustee shall either eliminate such interest or resign, to the extent and in the
manner provided by, and subject to the provisions of, the Trust Indenture Act and this Indenture.
To the extent permitted by such Act, the Trustee shall not be deemed to have a conflicting interest
by virtue of being a trustee under this Indenture with respect to Securities of more than one
series.

SECTION 609. Corporate Trustee Required; Eligibility.

     There shall at all times be one (and only one) Trustee hereunder with respect to the
Securities of each series, which may be Trustee hereunder for Securities of one or more other
series. The Trustee shall be a corporation or national banking association organized and doing business
under the laws of the United States of America or of any state thereof, authorized to exercise
corporate trust powers, and be a Person that is otherwise eligible pursuant to the Trust Indenture Act to act
as such and has a combined capital and surplus of at least $50,000,000. If any such Person
publishes reports of condition at least annually, pursuant to law or to the requirements of its
supervising or examining authority, then for the purposes of this Section and to the extent
permitted by the Trust Indenture Act, the combined capital and surplus of such Person shall be
deemed to be its combined capital and surplus as set forth in its most recent report of condition
so published. If at any time the Trustee with respect to the Securities of any series shall cease
to be eligible in accordance with the provisions of this Section, it shall resign immediately in
the manner and with the effect hereinafter specified in this Article.

SECTION 610. Resignation and Removal; Appointment of Successor.

     No resignation or removal of the Trustee and no appointment of a successor Trustee pursuant to
this Article shall become effective until the acceptance of appointment by the successor Trustee in
accordance with the applicable requirements of Section 611.

     The Trustee may resign at any time with respect to the Securities of one or more series by
giving written notice thereof to the Company. If the instrument of acceptance by a successor
Trustee required by Section 611 shall not have been delivered to the Trustee within 30 days after
the giving of such notice of resignation, the resigning Trustee may petition any court of competent
jurisdiction, at the expense of the Company, for the appointment of a successor Trustee with
respect to the Securities of such series.

     The Trustee may be removed at any time with respect to the Securities of any series by Act of
the Holders of a majority in principal amount of the Outstanding Securities of such series,
delivered to the Trustee and to the Company.

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     If at any time:

     (1) the Trustee shall fail to comply with Section 608 after written request therefor
by the Company or by any Holder who has been a bona fide Holder of a Security for at least
six months, or

     (2) the Trustee shall cease to be eligible under Section 609 and shall fail to resign
after written request therefor by the Company or by any such Holder, or

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

then, in any such case, (A) the Company by a Board Resolution may remove the Trustee with respect
to all Securities, or (B) subject to Section 514, any Holder who has been a bona fide Holder of a
Security for at least six months may, on behalf of himself and all others similarly situated,
petition any court of competent jurisdiction for the removal of the Trustee with respect to all
Securities and the appointment of a successor Trustee or Trustees.

     If an instrument of acceptance by a successor Trustee shall not have been delivered to the
Trustee within 30 days after the giving of such notice of removal, the Trustee being removed may
petition, at the expense of the Company, any court of competent jurisdiction for the appointment of
a successor Trustee with respect to the Securities of such series. If the Trustee shall resign, be
removed or become incapable of acting, or if a vacancy shall occur in the office of Trustee for any
cause, with respect to the Securities of one or more series, the Company, by a Board Resolution,
shall promptly appoint a successor Trustee or Trustees with respect to the Securities of that or
those series (it being understood that any such successor Trustee may be appointed with respect to
the Securities of one or more or all of such series and that at any time there shall be only one
Trustee with respect to the Securities of any particular series) and shall comply with the
applicable requirements of Section 611. If, within one year after such resignation, removal or
incapability, or the occurrence of such vacancy, a successor Trustee with respect to the Securities
of any series shall be appointed by Act of the Holders of a majority in principal amount of the
Outstanding Securities of such series delivered to the Company and the retiring Trustee, the
successor Trustee so appointed shall, forthwith upon its acceptance of such appointment in
accordance with the applicable requirements of Section 611, become the successor Trustee with
respect to the Securities of such series and to that extent supersede the successor Trustee
appointed by the Company. If no successor Trustee with respect to the Securities of any series
shall have been so appointed by the Company or the Holders and accepted appointment in the manner
required by Section 611, any Holder who has been a bona fide Holder of a Security of such series
for at least six months may, on behalf of himself and all others similarly situated, petition any
court of competent jurisdiction for the appointment of a successor Trustee with respect to the
Securities of such series.

     The Company shall give notice of each resignation and each removal of the Trustee with respect
to the Securities of any series and each appointment of a successor Trustee with respect to the
Securities of any series to all Holders of Securities of such series in the manner provided in
Section 106. Each notice shall include the name of the successor Trustee with respect to the
Securities of such series and the address of its Corporate Trust Office.

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SECTION 611. Acceptance of Appointment by Successor.

     In case of the appointment hereunder of a successor Trustee with respect to all Securities,
every such successor Trustee so appointed shall execute, acknowledge and deliver to the Company
and to the retiring Trustee an instrument accepting such appointment, and thereupon the resignation
or removal of the retiring Trustee shall become effective and such successor Trustee, without any
further act, deed or conveyance, shall become vested with all the rights, powers, trusts and duties
of the retiring Trustee; but, on the request of the Company or the successor Trustee, such retiring
Trustee shall, upon payment of its charges, execute and deliver an instrument transferring to such
successor Trustee all the rights, powers and trusts of the retiring Trustee and shall duly assign,
transfer and deliver to such successor Trustee all property and money held by such retiring Trustee
hereunder.

     In case of the appointment hereunder of a successor Trustee with respect to the Securities of
one or more (but not all) series, the Company, the retiring Trustee and each successor Trustee with
respect to the Securities of one or more series shall execute and deliver an indenture supplemental
hereto wherein each successor Trustee shall accept such appointment and which (1) shall contain
such provisions as shall be necessary or desirable to transfer and confirm to, and to vest in, each
successor Trustee all the rights, powers, trusts and duties of the retiring Trustee with respect to
the Securities of that or those series to which the appointment of such successor Trustee relates,
(2) if the retiring Trustee is not retiring with respect to all Securities, shall contain such
provisions as shall be deemed necessary or desirable to confirm that all the rights, powers, trusts
and duties of the retiring Trustee with respect to the Securities of that or those series as to
which the retiring Trustee is not retiring shall continue to be vested in the retiring Trustee, and
(3) shall add to or change any of the provisions of this Indenture as shall be necessary to provide
for or facilitate the administration of the trusts hereunder by more than one Trustee, it being
understood that nothing herein or in such supplemental indenture shall constitute such Trustees
co-trustees of the same trust and that each such Trustee shall be trustee of a trust or trusts
hereunder separate and apart from any trust or trusts hereunder administered by any other such
Trustee; and upon the execution and delivery of such supplemental indenture the resignation or
removal of the retiring Trustee shall become effective to the extent provided therein and each such
successor Trustee, without any further act, deed or conveyance, shall become vested with all the
rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or
those series to which the appointment of such successor Trustee relates; but, on request of the
Company or any successor Trustee, such retiring Trustee shall duly assign, transfer and deliver to
such successor Trustee all property and money held by such retiring Trustee hereunder with respect
to the Securities of that or those series to which the appointment of such successor Trustee
relates.

     Upon request of any such successor Trustee, the Company shall execute any and all instruments
for more fully and certainly vesting in and confirming to such successor Trustee all such rights,
powers and trusts referred to in the first or second preceding paragraph, as the case may be.

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

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SECTION 612. Merger, Conversion, Consolidation or Succession to Business.

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

SECTION 613. Preferential Collection of Claims Against Company.

     If and when the Trustee shall be or become a creditor of the Company (or any other obligor
upon the Securities), the Trustee shall be subject to the provisions of the Trust Indenture Act
regarding the collection of claims (whether or not litigated) against the Company (or any such other obligor).

SECTION 614. Appointment of Authenticating Agent.

     The Trustee may appoint an Authenticating Agent or Agents with respect to one or more series
of Securities which shall be authorized to act on behalf of the Trustee to authenticate Securities
of such series issued upon original issue and upon exchange, registration of transfer or partial
redemption thereof or pursuant to Section 306, and Securities so authenticated shall be entitled to
the benefits of this Indenture and shall be valid and obligatory for all purposes as if
authenticated by the Trustee hereunder. Wherever reference is made in this Indenture to the
authentication and delivery of Securities by the Trustee or the Trustee’s certificate of
authentication, such reference shall be deemed to include authentication and delivery on behalf of
the Trustee by an Authenticating Agent and a certificate of authentication executed on behalf of
the Trustee by an Authenticating Agent. Each Authenticating Agent shall be acceptable to the
Company and shall at all times be a corporation organized and doing business under the laws of the
United States of America, any State thereof or the District of Columbia, authorized under such laws
to act as Authenticating Agent, having a combined capital and surplus of not less than $50,000,000
and subject to supervision or examination by Federal or State authority. If such Authenticating
Agent publishes reports of condition at least annually, pursuant to law or to the requirements of
said supervising or examining authority, then for the purposes of this Section, the combined
capital and surplus of such Authenticating Agent shall be deemed to be its combined capital and
surplus as set forth in its most recent report of condition so published. If at any time an
Authenticating Agent shall cease to be eligible in accordance with the provisions of this Section,
such Authenticating Agent shall resign immediately in the manner and with the effect specified in
this Section.

     Any corporation into which an Authenticating Agent may be merged or converted or with which it
may be consolidated, or any corporation resulting from any merger, conversion or consolidation to
which such Authenticating Agent shall be a party, or any corporation succeeding to the corporate
agency or corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible under this

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Section, without the execution or filing of any paper or any further act on the part of the
Trustee or the Authenticating Agent.

     An Authenticating Agent may resign at any time by giving written notice thereof to the Trustee
and to the Company. The Trustee may at any time terminate the agency of an Authenticating Agent by
giving written notice thereof to such Authenticating Agent and to the Company. Upon receiving such
a notice of resignation or upon such a termination, or in case at any time such Authenticating
Agent shall cease to be eligible in accordance with the provisions of this Section, the Trustee may
appoint a successor Authenticating Agent which shall be acceptable to the Company and shall give
notice of such appointment in the manner provided in Section 106 to all Holders of Securities of
the series with respect to which such Authenticating Agent will serve. Any successor Authenticating
Agent upon acceptance of its appointment hereunder shall become vested with all the rights, powers
and duties of its predecessor hereunder, with like effect as if originally named as an
Authenticating Agent. No successor Authenticating Agent shall be appointed unless eligible under
the provisions of this Section.

     The Company agrees to pay to each Authenticating Agent from time to time reasonable
compensation for its services under this Section.

     If an appointment with respect to one or more series is made pursuant to this Section 614, the
Securities of such series may have endorsed thereon, in addition to the Trustee’s certificate of
authentication, an alternative certificate of authentication in the following form:

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

THE BANK
OF NEW YORK
MELLON TRUST COMPANY, N.A.,

As Trustee

By ___________________,

As Authenticating Agent

By ___________________

Authorized Signatory

ARTICLE SEVEN

Holders’ Lists and Reports by Trustee and Company

SECTION 701. Company to Furnish Trustee Names and Addresses of Holders.

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

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

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the Holders of Securities of each series as of such Regular Record Date, as the case
may be, and

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

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

SECTION 702. Preservation of Information; Communications to Holders.

     The Trustee shall preserve, in as current a form as is reasonably practicable, the names and
addresses of Holders contained in the most recent list furnished to the Trustee as provided in
Section 701 and the names and addresses of Holders received by the Trustee in its capacity as
Security Registrar. The Trustee may destroy any list furnished to it as provided in Section 701
upon receipt of a new list so furnished.

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

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

SECTION 703. Reports by Trustee.

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

     Reports so required to be transmitted at stated intervals of not more than 12 months shall be
transmitted no later than July 1 in each calendar year, commencing with the first July 1 after the
first issuance of Securities pursuant to this Indenture.

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

SECTION 704. Reports by Company.

     The Company shall file with the Trustee and the Commission, and transmit to Holders, such
information, documents and other reports, and such summaries thereof, as may be required pursuant
to the Trust Indenture Act at the times and in the manner provided pursuant to the Trust Indenture
Act; provided that any such information, documents or reports required to be filed with

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the Commission pursuant to Section 13 or 15(d) of the Exchange Act shall be filed with the
Trustee within 15 days after the same is so required to be filed with the Commission.

     Delivery of such reports, information and documents to the Trustee is for informational
purposes only and the Trustee’s receipt of such shall not constitute constructive notice of any
information contained therein or determinable from information contained therein, including the
Company’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to
rely conclusively on Officers’ Certificates).

ARTICLE EIGHT

Consolidation, Merger, Conveyance, Transfer or Lease

SECTION 801. Company May Consolidate, Etc., Only on Certain Terms.

     The Company shall not consolidate with or merge with or into any other Person or convey,
transfer or lease all or substantially all of its properties and assets to any Person, unless:

     (1) either (A) the Company shall be the continuing corporation or (B) the Person
formed by a consolidation with the Company or into which the Company is merged or the
Person which acquires by conveyance or transfer, or which leases, all or substantially all
of the properties and assets of the Company shall be a corporation, partnership or trust,
shall be organized and validly existing under the laws of the United States of America, any
State thereof or the District of Columbia or any province in Canada and shall expressly
assume, by an indenture supplemental hereto, executed and delivered to the Trustee, in form
satisfactory to the Trustee, the due and punctual payment of the principal of and any
premium and interest on all the Securities and the performance or observance of every
covenant of this Indenture on the part of the Company to be performed or observed and the
conversion rights shall be provided for in accordance with Article Fourteen, if applicable,
or as otherwise specified pursuant to Section 301, by supplemental indenture satisfactory
in form to the Trustee, executed and delivered to the Trustee, by the Person (if other than
the Company) formed by such consolidation or into which the Company shall have been merged
or by the Person which shall have acquired the Company’s assets;

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

     (3) the Company has delivered to the Trustee an Officers’ Certificate and an Opinion
of Counsel, each stating that (A) such consolidation, merger, conveyance, transfer or lease
and, if a supplemental indenture is required in connection with such transaction, such
supplemental indenture comply with this Article and that all conditions precedent herein
provided for relating to such transaction have been complied with and (B) in the case of a
merger or consolidation in which the Company is not the continuing corporation and in which
the successor to the Company is an entity organized under the

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laws of any province in Canada, that such merger will not result in any material
adverse tax consequences to any Holders of the Securities.

SECTION 802. Successor Substituted.

     Upon any consolidation of the Company with, or merger of the Company into, any other Person or
any conveyance, transfer or lease of the properties and assets of the Company substantially as an
entirety in accordance with Section 801, the successor Person formed by such consolidation or into
which the Company is merged or to which such conveyance, transfer or lease is made shall succeed
to, and be substituted for, and may exercise every right and power of, the Company under this
Indenture with the same effect as if such successor Person had been named as the Company herein,
and thereafter, except in the case of a lease, the predecessor Person shall be relieved of all
obligations and covenants under this Indenture and the Securities.

ARTICLE NINE

Supplemental Indentures

SECTION 901. Supplemental Indentures Without Consent of Holders.

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

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

     (2) to add to the covenants of the Company for the benefit of the Holders of all or
any series of Securities (and if such covenants are to be for the benefit of less than all
series of Securities, stating that such covenants are expressly being included solely for
the benefit of such series) or to surrender any right or power herein conferred upon the
Company; or

     (3) to add any additional Events of Default for the benefit of the Holders of all or
any series of Securities (and if such additional Events of Default are to be for the
benefit of less than all series of Securities, stating that such additional Events of
Default are expressly being included solely for the benefit of such series); or

     (4) to add to or change any of the provisions of this Indenture to such extent as
shall be necessary to permit or facilitate the issuance of Securities in bearer form,
registrable or not registrable as to principal, and with or without interest coupons, or to
permit or facilitate the issuance of Securities in uncertificated form; or

     (5) to add to, change or eliminate any of the provisions of this Indenture in respect
of one or more series of Securities, provided that any such addition, change or

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elimination (A) shall neither (i) apply to any Security of any series created prior to
the execution of such supplemental indenture and entitled to the benefit of such provision
nor (ii) modify the rights of the Holder of any such Security with respect to such
provision or (B) shall become effective only when there is no such Security Outstanding; or

     (6) to secure the Securities; or

     (7) to establish the form or terms of Securities of any series as permitted by
Sections 201 and 301; or

     (8) to evidence and provide for the acceptance of appointment hereunder by a successor
Trustee with respect to the Securities of one or more series and to add to or change any of
the provisions of this Indenture as shall be necessary to provide for or facilitate the
administration of the trusts hereunder by more than one Trustee, pursuant to the
requirements of Section 611; or

     (9) to make provision with respect to the conversion rights of Holders pursuant to the
requirements of Article Fourteen, including providing for the conversion of the securities
into any security (other than the Common Stock of the Company) or property of the Company;
or

     (10) to cure any ambiguity, to correct or supplement any provision herein which may be
defective or inconsistent with any other provision herein, or to make any other provisions
with respect to matters or questions arising under this Indenture, provided that such
action pursuant to this Clause (10) shall not adversely affect the interests of the Holders
of Securities of any series in any material respect; or

     (11) to supplement any of the provisions of the Indenture to such extent as shall be
necessary to permit or facilitate the defeasance and discharge of any series of Securities
pursuant to Articles Four and Thirteen, provided that any such action shall not adversely
affect the interests of the Holders of Securities of such series or any other series of
Securities in any material respect.

SECTION 902. Supplemental Indentures With Consent of Holders.

     With the consent of the Holders of a majority in principal amount of the Outstanding
Securities of each series affected by such supplemental indenture, by Act of said Holders delivered
to the Company and the Trustee, the Company, when authorized by a Board Resolution, and the Trustee
may enter into an indenture or indentures supplemental hereto for the purpose of adding any
provisions to or changing in any manner or eliminating any of the provisions of this Indenture or
of modifying in any manner the rights of the Holders of Securities of such series under this
Indenture; provided, however, that no such supplemental indenture shall, without the consent of the
Holder of each Outstanding Security affected thereby,

     (1) change the Stated Maturity of the principal of, or any installment of principal of
or interest on, any Security, or reduce the principal amount thereof or the rate of
interest thereon or any premium payable upon the redemption thereof, or reduce the amount
of the principal of an Original Issue Discount Security or any other Security which would
be due and payable upon a declaration of acceleration of the Maturity

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thereof pursuant to Section 502, or change any Place of Payment where, or the coin or
currency in which, any Security or any premium or interest thereon is payable, or impair
the right to institute suit for the enforcement of any such payment on or after the Stated
Maturity thereof (or, in the case of redemption, on or after the Redemption Date), or

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

     (3) modify any of the provisions of this Section, Section 513 or Section 1006, except
to increase any such percentage or to provide that certain other provisions of this
Indenture cannot be modified or waived without the consent of the Holder of each
Outstanding Security affected thereby; provided, however, that this clause shall not be
deemed to require the consent of any Holder with respect to changes in the references to
“the Trustee” and concomitant changes in this Section and Section 1006, or the deletion of
this proviso, in accordance with the requirements of Sections 611 and 901(8), or

     (4) if applicable, make any change that adversely affects the right to convert any
Security as provided in Article Fourteen or pursuant to Section 301 (except as permitted by
Section 901(9)) or decrease the conversion rate or increase the conversion price of any
such Security.

A supplemental indenture which changes or eliminates any covenant or other provision of this
Indenture which has expressly been included solely for the benefit of one or more particular series
of Securities, or which modifies the rights of the Holders of Securities of such series with
respect to such covenant or other provision, shall be deemed not to affect the rights under this
Indenture of the Holders of Securities of any other series.

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

SECTION 903. Execution of Supplemental Indentures.

     In executing, or accepting the additional trusts created by, any supplemental indenture
permitted by this Article or the modifications thereby of the trusts created by this Indenture, the
Trustee shall be entitled to receive, and (subject to Sections 601 and 603) shall be fully
protected in relying upon, an Opinion of Counsel and an Officers’ Certificate stating that the
execution of such supplemental indenture is authorized or permitted by this Indenture. The Trustee
may, but shall not be obligated to, enter into any such supplemental indenture which affects the
Trustee’s own rights, duties or immunities under this Indenture or otherwise.

SECTION 904. Effect of Supplemental Indentures.

     Upon the execution of any supplemental indenture under this Article, this Indenture shall be
modified in accordance therewith, and such supplemental indenture shall form a part of this

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Indenture for all purposes; and every Holder of Securities theretofore or thereafter
authenticated and delivered hereunder shall be bound thereby.

SECTION 905. Conformity with Trust Indenture Act.

     Every
amendment or supplement to this Indenture or the Securities executed pursuant to this Article shall conform to the
requirements of the Trust Indenture Act as is then in effect so long
as the Indenture and Securities are subject to the Trust Indenture Act.

SECTION 906. Reference in Securities to Supplemental Indentures.

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

ARTICLE TEN

Covenants

SECTION 1001. Payment of Principal, Premium and Interest.

     The Company covenants and agrees for the benefit of each series of Securities that it will
duly and punctually pay the principal of and any premium and interest on the Securities of that
series in accordance with the terms of the Securities and this Indenture.

SECTION 1002. Maintenance of Office or Agency.

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

     The Company may also from time to time designate one or more other offices or agencies where
the Securities of one or more series may be presented or surrendered for any or all such purposes
and may from time to time rescind such designations; provided, however, that no such designation or
rescission shall in any manner relieve the Company of its obligation to maintain an office or
agency in each Place of Payment for Securities of any series for such purposes. The

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Company will give prompt written notice to the Trustee of any such designation or rescission
and of any change in the location of any such other office or agency.

SECTION 1003. Money for Securities Payments to Be Held in Trust.

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

     Whenever the Company shall have one or more Paying Agents for any series of Securities, it
will, prior to each due date of the principal of or any premium or interest on any Securities of
that series, deposit with a Paying Agent a sum sufficient to pay such amount, such sum to be held
as provided by the Trust Indenture Act, and (unless such Paying Agent is the Trustee) the Company
will promptly notify the Trustee of its action or failure so to act.

     The Company will cause each Paying Agent for any series of Securities other than the Trustee
to execute and deliver to the Trustee an instrument in which such Paying Agent shall agree with the
Trustee, subject to the provisions of this Section, that such Paying Agent will (1) comply with the
provisions of the Trust Indenture Act applicable to it as a Paying Agent and (2) during the
continuance of any default by the Company (or any other obligor upon the Securities of that series)
in the making of any payment in respect of the Securities of that series, upon the written request
of the Trustee, forthwith pay to the Trustee all sums held in trust by such Paying Agent for
payment in respect of the Securities of that series.

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

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

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SECTION 1004. Statement by Officers as to Default.

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

SECTION 1005. Existence.

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

SECTION 1006. Waiver of Certain Covenants.

     Except as otherwise specified as contemplated by Section 301 for Securities of such series,
the Company may, with respect to the Securities of any series, omit in any particular instance to
comply with any term, provision or condition set forth in any covenant provided pursuant to Section
301(19), 901(2) or 901(7) for the benefit of the Holders of such series if before the time for such
compliance the Holders of at least a majority in principal amount of the Outstanding Securities of
such series shall, by Act of such Holders, either waive such compliance in such instance or
generally waive compliance with such term, provision or condition, but no such waiver shall extend
to or affect such term, provision or condition except to the extent so expressly waived, and, until
such waiver shall become effective, the obligations of the Company and the duties of the Trustee in
respect of any such term, provision or condition shall remain in full force and effect.

SECTION 1007. 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 1008. 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.

ARTICLE ELEVEN

Redemption of Securities

SECTION 1101. Applicability of Article.

     Securities of any series which are redeemable before their Stated Maturity shall be redeemable
in accordance with their terms and (except as otherwise specified as contemplated by Section 301
for such Securities) in accordance with this Article.

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SECTION 1102. Election to Redeem; Notice to Trustee.

     The election of the Company to redeem any Securities shall be evidenced by a Board Resolution
or in another manner specified as contemplated by Section 301 for such Securities. In case of any
redemption at the election of the Company of less than all the Securities of any series (including
any such redemption affecting only a single Security), the Company shall, at least 60 days prior to
the Redemption Date fixed by the Company (unless a shorter notice shall be satisfactory to the
Trustee), notify the Trustee of such Redemption Date, of the principal amount of Securities of such
series to be redeemed and, if applicable, of the tenor of the Securities to be redeemed. In the
case of any redemption of Securities prior to the expiration of any restriction on such redemption
provided in the terms of such Securities or elsewhere in this Indenture, the Company shall furnish
the Trustee with an Officers’ Certificate evidencing compliance with such restriction.

SECTION 1103. Selection by Trustee of Securities to Be Redeemed.

     If less than all the Securities of any series are to be redeemed (unless all the Securities of
such series and of a specified tenor are to be redeemed or unless such redemption affects only a
single Security), the particular Securities to be redeemed shall be selected not more than 60 days
prior to the Redemption Date by the Trustee, from the Outstanding Securities of such series not
previously called for redemption, by such method as the Trustee shall deem fair and appropriate and
which may provide for the selection for redemption of a portion of the principal amount of any
Security of such series, provided that the unredeemed portion of the principal amount of any
Security shall be in an authorized denomination (which shall not be less than the minimum
authorized denomination) for such Security. If less than all the Securities of such series and of a
specified tenor are to be redeemed (unless such redemption affects only a single Security), the
particular Securities to be redeemed shall be selected not more than 60 days prior to the
Redemption Date by the Trustee, from the Outstanding Securities of such series and specified tenor
not previously called for redemption in accordance with the preceding sentence.

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

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

     The provisions of the two preceding paragraphs shall not apply with respect to any redemption
affecting only a single Security, whether such Security is to be redeemed in whole or in part. In
the case of any such redemption in part, the unredeemed portion of the principal amount of the
Security shall be in an authorized denomination (which shall not be less than the minimum
authorized denomination) for such Security.

     For all purposes of this Indenture, unless the context otherwise requires, all provisions
relating to the redemption of Securities shall relate, in the case of any Securities redeemed or to

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be redeemed only in part, to the portion of the principal amount of such Securities which has
been or is to be redeemed.

SECTION 1104. Notice of Redemption.

     Notice of redemption shall be given by first-class mail, postage prepaid, mailed not less than
30 nor more than 60 days prior to the Redemption Date, to each Holder of Securities to be redeemed,
at its address appearing in the Security Register.

     All notices of redemption shall identify the Securities to be redeemed (including the CUSIP
Numbers) and state:

     (1) the Redemption Date,

     (2) the Redemption Price (including accrued interest, if any),

     (3) if less than all the Outstanding Securities of any series consisting of more than
a single Security are to be redeemed, the identification (and, in the case of partial
redemption of any such Securities, the principal amounts) of the particular Securities to
be redeemed and, if less than all the Outstanding Securities of any series consisting of a
single Security are to be redeemed, the principal amount of the particular Security to be
redeemed,

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

     (5) the place or places where each such Security is to be surrendered for payment of
the Redemption Price,

     (6) if applicable, the conversion price, that the date on which the right to convert
the principal of the Securities or the portions thereof to be redeemed will terminate will
be the Redemption Date and the place or places where such Securities may be surrendered for
conversion, and

     (7) that the redemption is for a sinking fund, if such is the case.

     Notice of redemption of Securities to be redeemed at the election of the Company shall be
given by the Company or, at the Company’s request, by the Trustee in the name and at the expense of
the Company and shall be irrevocable.

SECTION 1105. Deposit of Redemption Price.

     Prior to 10:00 a.m. New York City time on any Redemption Date, the Company shall deposit with
the Trustee or with a Paying Agent (or, if the Company is acting as its own Paying Agent, segregate
and hold in trust as provided in Section 1003) an amount of money sufficient to pay the Redemption
Price of, and (except if the Redemption Date shall be an Interest Payment Date) accrued interest
on, all the Securities which are to be redeemed on that date.

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     If any Security called for redemption is converted, any money deposited with the Trustee or
with a Paying Agent or so segregated and held in trust for the redemption of such Security shall
(subject to the right of any Holder of such Security to receive interest as provided in the last
paragraph of Section 307) be paid to the Company on Company Request, or if then held by the
Company, shall be discharged from such trust.

SECTION 1106. Securities Payable on Redemption Date.

     Notice of redemption having been given as aforesaid, the Securities so to be redeemed shall,
on the Redemption Date, become due and payable at the Redemption Price therein specified, and from
and after such date (unless the Company shall default in the payment of the Redemption Price and
accrued interest) such Securities shall cease to bear interest. Upon surrender of any such Security
for redemption in accordance with said notice, such Security shall be paid by the Company at the
Redemption Price, together with accrued interest to the Redemption Date; provided, however, that,
unless otherwise specified as contemplated by Section 301, installments of interest whose Stated
Maturity is on or prior to the Redemption Date will be payable to the Holders of such Securities,
or one or more Predecessor Securities, registered as such at the close of business on the relevant
Record Dates according to their terms and the provisions of Section 307.

     If any Security called for redemption shall not be so paid upon surrender thereof for
redemption, the principal and any premium shall, until paid, bear interest from the Redemption Date
at the rate prescribed therefor in the Security.

SECTION 1107. Securities Redeemed in Part.

     Any Security which is to be redeemed only in part shall be surrendered at a Place of Payment
therefor (with, if the Company or the Trustee so requires, due endorsement by, or a written
instrument of transfer in form satisfactory to the Company and the Trustee duly executed by, the
Holder thereof or its attorney duly authorized in writing), and the Company shall execute, and the
Trustee shall authenticate and deliver to the Holder of such Security without service charge, a new
Security or Securities of the same series and of like tenor, of any authorized denomination as
requested by such Holder, in aggregate principal amount equal to and in exchange for the unredeemed
portion of the principal of the Security so surrendered.

ARTICLE TWELVE

Sinking Funds

SECTION 1201. Applicability of Article.

     The provisions of this Article shall be applicable to any sinking fund for the retirement of
Securities of any series except as otherwise specified as contemplated by Section 301 for such
Securities.

     The minimum amount of any sinking fund payment provided for by the terms of any Securities is
herein referred to as a “mandatory sinking fund payment”, and any payment in

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excess of such minimum amount provided for by the terms of such Securities is herein referred
to as an “optional sinking fund payment”. If provided for by the terms of any Securities, the cash
amount of any sinking fund payment may be subject to reduction as provided in Section 1202. Each
sinking fund payment shall be applied to the redemption of Securities as provided for by the terms
of such Securities.

SECTION 1202. Satisfaction of Sinking Fund Payments with Securities.

     The Company (1) may deliver Outstanding Securities of a series (other than any previously
called for redemption) and (2) may apply as a credit Securities of a series which have been
redeemed either at the election of the Company pursuant to the terms of such Securities or through
the application of permitted optional sinking fund payments pursuant to the terms of such
Securities, in each case in satisfaction of all or any part of any sinking fund payment with
respect to any Securities of such series required to be made pursuant to the terms of such
Securities as and to the extent provided for by the terms of such Securities; provided that the
Securities to be so credited have not been previously so credited. The Securities to be so credited
shall be received and credited for such purpose by the Trustee at the Redemption Price, as
specified in the Securities so to be redeemed, for redemption through operation of the sinking fund
and the amount of such sinking fund payment shall be reduced accordingly.

SECTION 1203. Redemption of Securities for Sinking Fund.

     Not less than 60 days prior to each sinking fund payment date for any Securities, the Company
will deliver to the Trustee an Officers’ Certificate specifying the amount of the next ensuing
sinking fund payment for such Securities pursuant to the terms of such Securities, the portion
thereof, if any, which is to be satisfied by payment of cash and the portion thereof, if any, which
is to be satisfied by delivering and crediting Securities pursuant to Section 1202 and will also
deliver to the Trustee any Securities to be so delivered. Not less than 30 days prior to each such
sinking fund payment date, the Trustee shall select the Securities to be redeemed upon such sinking
fund payment date in the manner specified in Section 1103 and cause notice of the redemption
thereof to be given in the name of and at the expense of the Company in the manner provided in
Section 1104. Such notice having been duly given, the redemption of such Securities shall be made
upon the terms and in the manner stated in Sections 1106 and 1107.

ARTICLE THIRTEEN

Defeasance and Covenant Defeasance

SECTION 1301. Company’s Option to Effect Defeasance or Covenant Defeasance.

     The Company may elect, at its option at any time, to have Section 1302 or Section 1303 applied
to any Securities or any series of Securities, as the case may be, designated pursuant to Section
301 as being defeasible pursuant to such Section 1302 or 1303, in accordance with any applicable
requirements provided pursuant to Section 301 and upon compliance with the conditions set forth
below in this Article. Any such election shall be evidenced by a Board Resolution or in another
manner specified as contemplated by Section 301 for such Securities.

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SECTION 1302. Defeasance and Discharge.

     Upon the Company’s exercise of its option (if any) to have this Section applied to any
Securities or any series of Securities, as the case may be, the Company shall be deemed to have
been discharged from its obligations with respect to such Securities as provided in this Section on
and after the date the conditions set forth in Section 1304 are satisfied (hereinafter called
“Defeasance”). For this purpose, such Defeasance means that the Company shall be deemed to have
paid and discharged the entire indebtedness represented by such Securities and to have satisfied
all its other obligations under such Securities and this Indenture insofar as such Securities are
concerned (and the Trustee, at the expense of the Company, shall execute proper instruments
acknowledging the same), subject to the following which shall survive until otherwise terminated or
discharged hereunder: (1) the rights of Holders of such Securities to receive, solely from the
trust fund described in Section 1304 and as more fully set forth in such Section, payments in
respect of the principal of and any premium and interest on such Securities when payments are due,
(2) the Company’s obligations with respect to such Securities under Sections 304, 305, 306, 1002
and 1003, (3) the rights, powers, trusts, duties and immunities of the Trustee hereunder and (4)
this Article. Subject to compliance with this Article, the Company may exercise its option (if any)
to have this Section applied to any Securities notwithstanding the prior exercise of its option (if
any) to have Section 1303 applied to such Securities.

SECTION 1303. Covenant Defeasance.

     Upon the Company’s exercise of its option (if any) to have this Section applied to any
Securities or any series of Securities, as the case may be, (1) the Company shall be released from
its obligations under Section 801(3) and any covenants provided pursuant to Section 301(19), 901(2)
or 901(7) for the benefit of the Holders of such Securities and (2) the occurrence of any event
specified in Sections 501(4) (with respect to any of Section 801(3) and any such covenants provided
pursuant to Section 301(19), 901(2) or 901(7)) shall be deemed not to be or result in an Event of
Default, in each case with respect to such Securities as provided in this Section on and after the
date the conditions set forth in Section 1304 are satisfied (hereinafter called “Covenant
Defeasance”). For this purpose, such Covenant Defeasance means that, with respect to such
Securities, the Company may omit to comply with and shall have no liability in respect of any term,
condition or limitation set forth in any such specified Section (to the extent so specified in the
case of Section 501(4)), whether directly or indirectly by reason of any reference elsewhere herein
to any such Section or by reason of any reference in any such Section to any other provision herein
or in any other document, but the remainder of this Indenture and such Securities shall be
unaffected thereby.

SECTION 1304. Conditions to Defeasance or Covenant Defeasance.

     The following shall be the conditions to the application of Section 1302 or Section 1303 to
any Securities or any series of Securities, as the case may be:

     (1) The Company shall irrevocably have deposited or caused to be deposited with the
Trustee (or another trustee which satisfies the requirements contemplated by Section 609
and agrees to comply with the provisions of this Article applicable to it) as trust funds
in trust for the purpose of making the following payments, specifically pledged as security
for, and dedicated solely to, the benefits of the Holders of such Securities, (A) money in
an amount, or (B) U.S. Government Obligations which through

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the scheduled payment of principal and interest in respect thereof in accordance with
their terms will provide, not later than one day before the due date of any payment, money
in an amount, or (C) a combination thereof, in each case sufficient, in the opinion of a
nationally recognized firm of independent public accountants expressed in a written
certification thereof delivered to the Trustee, to pay and discharge, and which shall be
applied by the Trustee (or any such other qualifying trustee) to pay and discharge, the
principal of and any premium and interest on such Securities on the respective Stated
Maturities, in accordance with the terms of this Indenture and such Securities. As used
herein, “U.S. Government Obligation” means (x) any security which is (i) a direct
obligation of the United States of America for the payment of which the full faith and
credit of the United States of America is pledged or (ii) an obligation of a Person
controlled or supervised by and acting as an agency or instrumentality of the United States
of America the payment of which is unconditionally guaranteed as a full faith and credit
obligation by the United States of America, which, in either case (i) or (ii), is not
callable or redeemable at the option of the issuer thereof, and (y) any depositary receipt
issued by a bank (as defined in Section 3(a)(2) of the Securities Act) as custodian with
respect to any U.S. Government Obligation which is specified in Clause (x) above and held
by such bank for the account of the holder of such depositary receipt, or with respect to
any specific payment of principal of or interest on any U.S. Government Obligation which is
so specified and held, provided that (except as required by law) such custodian is not
authorized to make any deduction from the amount payable to the holder of such depositary
receipt from any amount received by the custodian in respect of the U.S. Government
Obligation or the specific payment of principal or interest evidenced by such depositary
receipt.

     (2) In the event of an election to have Section 1302 apply to any Securities or any
series of Securities, as the case may be, the Company shall have delivered to the Trustee
an Opinion of Counsel stating that (A) the Company has received from, or there has been
published by, the Internal Revenue Service a ruling or (B) since the date of this
instrument, there has been a change in the applicable Federal income tax law, in either
case (A) or (B) to the effect that, and based thereon such opinion shall confirm that, the
Holders of such Securities will not recognize gain or loss for Federal income tax purposes
as a result of the deposit, Defeasance and discharge to be effected with respect to such
Securities and will be subject to Federal income tax on the same amount, in the same manner
and at the same times as would be the case if such deposit, Defeasance and discharge were
not to occur.

     (3) In the event of an election to have Section 1303 apply to any Securities or any
series of Securities, as the case may be, the Company shall have delivered to the Trustee
an Opinion of Counsel to the effect that the Holders of such Securities will not recognize
gain or loss for Federal income tax purposes as a result of the deposit and Covenant
Defeasance to be effected with respect to such Securities and will be subject to Federal
income tax on the same amount, in the same manner and at the same times as would be the
case if such deposit and Covenant Defeasance were not to occur.

     (4) The Company shall have delivered to the Trustee an Officers’ Certificate to the
effect that neither such Securities nor any other Securities of the same series, if then
listed on any securities exchange, will be delisted as a result of such deposit.

-58-

 

     (5) No event which is, or after notice or lapse of time or both would become, an Event
of Default with respect to such Securities or any other Securities shall have occurred and
be continuing at the time of such deposit or, with regard to any such event specified in
Sections 501(6) and (7), at any time on or prior to the 90th day after the date of such
deposit (it being understood that this condition shall not be deemed satisfied until after
such 90th day).

     (6) Such Defeasance or Covenant Defeasance shall not cause the Trustee to have a
conflicting interest within the meaning of the Trust Indenture Act (assuming all Securities
are in default within the meaning of such Act).

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

     (8) Such Defeasance or Covenant Defeasance shall not result in the trust arising from
such deposit constituting an investment company within the meaning of the Investment
Company Act unless such trust shall be registered under such Act or exempt from
registration thereunder.

     (9) The Company shall have delivered to the Trustee an Officers’ Certificate and an
Opinion of Counsel, each stating that all conditions precedent with respect to such
Defeasance or Covenant Defeasance have been complied with.

	SECTION 1305. 	Deposited Money and U.S. Government Obligations to Be Held in Trust; Miscellaneous
Provisions.

     Subject to the provisions of the last paragraph of Section 1003, all money and U.S. Government
Obligations (including the proceeds thereof) deposited with the Trustee or other qualifying trustee
(solely for purposes of this Section and Section 1306, the Trustee and any such other trustee are
referred to collectively as the “Trustee”) pursuant to Section 1304 in respect of any Securities
shall be held in trust and applied by the Trustee, in accordance with the provisions of such
Securities and this Indenture, to the payment, either directly or through any such Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may determine, to the Holders
of such Securities, of all sums due and to become due thereon in respect of principal and any
premium and interest, but money so held in trust need not be segregated from other funds except to
the extent required by law.

     The Company shall pay and indemnify the Trustee against any tax, fee or other charge imposed
on or assessed against the U.S. Government Obligations deposited pursuant to Section 1304 or the
principal and interest received in respect thereof other than any such tax, fee or other charge
which by law is for the account of the Holders of Outstanding Securities.

     Anything in this Article to the contrary notwithstanding, the Trustee shall deliver or pay to
the Company from time to time upon Company Request any money or U.S. Government Obligations held by
it as provided in Section 1304 with respect to any Securities which, in the opinion of a nationally
recognized firm of independent public accountants expressed in a written certification thereof
delivered to the Trustee, are in excess of the amount thereof which would

-59-

 

then be required to be deposited to effect the Defeasance or Covenant Defeasance, as the case
may be, with respect to such Securities.

SECTION 1306. Reinstatement.

     If the Trustee or the Paying Agent is unable to apply any money in accordance with this
Article with respect to any Securities by reason of any order or judgment of any court or
governmental authority enjoining, restraining or otherwise prohibiting such application, then the
obligations under this Indenture and such Securities from which the Company has been discharged or
released pursuant to Section 1302 or 1303 shall be revived and reinstated as though no deposit had
occurred pursuant to this Article with respect to such Securities, until such time as the Trustee
or Paying Agent is permitted to apply all money held in trust pursuant to Section 1305 with respect
to such Securities in accordance with this Article; provided, however, that if the Company makes
any payment of principal of or any premium or interest on any such Security following such
reinstatement of its obligations, the Company shall be subrogated to the rights (if any) of the
Holders of such Securities to receive such payment from the money so held in trust.

ARTICLE FOURTEEN

Conversion of Securities

SECTION 1401. Applicability of Article.

     The provisions of this Article shall be applicable to the Securities of any series which are
convertible into shares of Common Stock of the Company, and the issuance of such shares of Common
Stock upon the conversion of such Securities, except as otherwise specified as contemplated by
Section 301 for the Securities of such series.

SECTION 1402. Exercise of Conversion Privilege.

     In order to exercise a conversion privilege, the Holder of a Security of a series with such a
privilege shall surrender such Security to the Company at the office or agency maintained for that
purpose pursuant to Section 1002, accompanied by a duly executed conversion notice to the Company
substantially in the form set forth in Section 206 stating that the Holder elects to convert such
Security or a specified portion thereof. Such notice shall also state, if different from the name
and address of such Holder, the name or names (with address) in which the certificate or
certificates for shares of Common Stock which shall be issuable on such conversion shall be issued.
Securities surrendered for conversion shall (if so required by the Company or the Trustee) be duly
endorsed by or accompanied by instruments of transfer in forms satisfactory to the Company and the
Trustee duly executed by the registered Holder or its attorney duly authorized in writing; and
Securities so surrendered for conversion (in whole or in part) during the period from the close of
business on any Regular Record Date to the opening of business on the next succeeding Interest
Payment Date (excluding Securities or portions thereof called for redemption during such period)
shall also be accompanied by payment in funds acceptable to the Company of an amount equal to the
interest payable on such Interest Payment Date on the principal amount of such Security then being
converted, and such interest shall be payable to such registered Holder notwithstanding the
conversion of such Security, subject to the provisions of Section 307 relating

-60-

 

to the payment of Defaulted Interest by the Company. As promptly as practicable after the
receipt of such notice and of any payment required pursuant to a Board Resolution and, subject to
Section 303, set forth, or determined in the manner provided, in an Officers’ Certificate, or
established in one or more indentures supplemental hereto setting forth the terms of such series of
Security, and the surrender of such Security in accordance with such reasonable regulations as the
Company may prescribe, the Company shall issue and shall deliver, at the office or agency at which
such Security is surrendered, to such Holder or on its written order, a certificate or certificates
for the number of full shares of Common Stock issuable upon the conversion of such Security (or
specified portion thereof), in accordance with the provisions of such Board Resolution, Officers’
Certificate or supplemental indenture, and cash as provided therein in respect of any fractional
share of such Common Stock otherwise issuable upon such conversion. Such conversion shall be deemed
to have been effected immediately prior to the close of business on the date on which such notice
and such payment, if required, shall have been received in proper order for conversion by the
Company and such Security shall have been surrendered as aforesaid (unless such Holder shall have
so surrendered such Security and shall have instructed the Company to effect the conversion on a
particular date following such surrender and such Holder shall be entitled to convert such Security
on such date, in which case such conversion shall be deemed to be effected immediately prior to the
close of business on such date) and at such time the rights of the Holder of such Security as such
Security Holder shall cease and the person or persons in whose name or names any certificate or
certificates for shares of Common Stock of the Company shall be issuable upon such conversion shall
be deemed to have become the Holder or Holders of record of the shares represented thereby. Except
as set forth above and subject to the final paragraph of Section 307, no payment or adjustment
shall be made upon any conversion on account of any interest accrued on the Securities (or any part
thereof) surrendered for conversion or on account of any dividends on the Common Stock of the
Company issued upon such conversion.

     In the case of any Security which is converted in part only, upon such conversion the Company
shall execute and the Trustee shall authenticate and deliver to or on the order of the Holder
thereof, at the expense of the Company, a new Security or Securities of the same series, of
authorized denominations, in aggregate principal amount equal to the unconverted portion of such
Security.

SECTION 1403. No Fractional Shares.

     No fractional share of Common Stock of the Company shall be issued upon conversions of
Securities of any series. If more than one Security shall be surrendered for conversion at one time
by the same Holder, the number of full shares which shall be issuable upon conversion shall be
computed on the basis of the aggregate principal amount of the Securities (or specified portions
thereof to the extent permitted hereby) so surrendered. If, except for the provisions of this
Section 1403, any Holder of a Security or Securities would be entitled to a fractional share of
Common Stock of the Company upon the conversion of such Security or Securities, or specified
portions thereof, the Company shall pay to such Holder an amount in cash equal to the current
market value of such fractional share computed, (i) if such Common Stock is listed or admitted to
unlisted trading privileges on a national securities exchange, on the basis of the last reported
sale price regular way on such exchange on the last trading day prior to the date of conversion
upon which such a sale shall have been effected, or (ii) if such Common Stock is not at the time so
listed or admitted to unlisted trading privileges on a national securities exchange, on the basis
of the average of the bid and asked prices of such Common Stock in the over-the-counter market, on

-61-

 

the last trading day prior to the date of conversion, as reported by the National Quotation
Bureau, Incorporated or similar organization if the National Quotation Bureau, Incorporated is no
longer reporting such information, or if not so available, the fair market price as determined by
the Board of Directors. For purposes of this Section, “trading day” shall mean each Monday,
Tuesday, Wednesday, Thursday and Friday other than any day on which the Common Stock is not traded
on the Nasdaq National Market System, or if the Common Stock is not traded on the Nasdaq National
Market System, on the principal exchange or market on which the Common Stock is traded or quoted.

SECTION 1404. Adjustment of Conversion Price.

     The conversion price of Securities of any series that is convertible into Common Stock of the
Company shall be adjusted for any stock dividends, stock splits, reclassifications, combinations or
similar transactions in accordance with the terms of the supplemental indenture or Board
Resolutions setting forth the terms of the Securities of such series.

     Whenever the conversion price is adjusted, the Company shall compute the adjusted conversion
price in accordance with terms of the applicable Board Resolution or supplemental indenture and
shall prepare an Officers’ Certificate setting forth the adjusted conversion price and showing in
reasonable detail the facts upon which such adjustment is based, and such certificate shall
forthwith be filed at each office or agency maintained for the purpose of conversion of Securities
pursuant to Section 1002 and, if different, with the Trustee. The Company shall forthwith cause a
notice setting forth the adjusted conversion price to be mailed, first class postage prepaid, to
each Holder of Securities of such series at its address appearing on the Security Register and to
any conversion agent other than the Trustee.

SECTION 1405. Notice of Certain Corporate Actions.

     In case:

     (1) the Company shall declare a dividend (or any other distribution) on its Common
Stock payable otherwise than in cash out of its retained earnings (other than a dividend
for which approval of any shareholders of the Company is required); or

     (2) the Company shall authorize the granting to the holders of its Common Stock of
rights, options or warrants to subscribe for or purchase any shares of capital stock of any
class or of any other rights (other than any such grant for which approval of any
shareholders of the Company is required); or

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

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

-62-

 

then the Company shall cause to be filed with the Trustee, and shall cause to be mailed to all
Holders at their last addresses as they shall appear in the Securities Register, at least 20 days
(or 10 days in any case specified in Clause (1) or (2) above) prior to the applicable record date
hereinafter specified, a notice stating (i) the date on which a record is to be taken for the
purpose of such dividend, distribution, rights, options or warrants, or, if a record is not to be
taken, the date as of which the holders of Common Stock of record to be entitled to such dividend,
distribution, rights, options or warrants are to be determined, or (ii) the date on which such
reclassification, consolidation, merger, share exchange, sale, dissolution, liquidation or winding
up is expected to become effective, and the date as of which it is expected that holders of Common
Stock of record shall be entitled to exchange their shares of Common Stock for securities, cash or
other property deliverable upon such reclassification, consolidation, merger, share exchange, sale,
dissolution, liquidation or winding up. If at any time the Trustee shall not be the conversion
agent, a copy of such notice shall also forthwith be filed by the Company with the Trustee.

SECTION 1406. Reservation of Shares of Common Stock.

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

SECTION 1407. Payment of Certain Taxes Upon Conversion.

     The Company will pay any and all taxes that may be payable in respect of the issue or delivery
of shares of its 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 its 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 1408. Nonassessability.

     The Company covenants that all shares of its Common Stock which may be issued upon conversion
of Securities will upon issue in accordance with the terms hereof be duly and validly issued and
fully paid and nonassessable.

SECTION 1409. Effect of Consolidation or Merger on Conversion Privilege.

     In case of any consolidation of the Company with, or merger of the Company into or with any
other Person, or in case of any sale of all or substantially all of the assets of the Company, the
Company or the Person formed by such consolidation or the Person into which the Company shall have
been merged or the Person which shall have acquired such assets, as the case may be, shall execute
and deliver to the Trustee a supplemental indenture providing that the Holder of each Security then
outstanding of any series that is convertible into Common Stock of the Company shall have the
right, which right shall be the exclusive conversion right thereafter available to said Holder
(until the expiration of the conversion right of such Security), to convert such Security into the
kind and amount of shares of stock or other securities or property

-63-

 

(including cash) receivable upon such consolidation, merger or sale by a holder of the number
of shares of Common Stock of the Company into which such Security might have been converted
immediately prior to such consolidation, merger or sale, subject to compliance with the other
provisions of this Indenture, such Security and such supplemental indenture. Such supplemental
indenture shall provide for adjustments which shall be as nearly equivalent as may be practicable
to the adjustments provided for in such Security. The above provisions of this Section shall
similarly apply to successive consolidations, mergers or sales. It is expressly agreed and
understood that anything in this Indenture to the contrary notwithstanding, if, pursuant to such
merger, consolidation or sale, holders of outstanding shares of Common Stock of the Company do not
receive shares of common stock of the surviving corporation but receive other securities, cash or
other property or any combination thereof, Holders of Securities shall not have the right to
thereafter convert their Securities into common stock of the surviving corporation or the
corporation which shall have acquired such assets, but rather, shall have the right upon such
conversion to receive the other securities, cash or other property receivable by a holder of the
number of shares of Common Stock of the Company into which the Securities held by such holder might
have been converted immediately prior to such consolidation, merger or sale, all as more fully
provided in the first sentence of this Section 1409. Anything in this Section 1409 to the contrary
notwithstanding, the provisions of this Section 1409 shall not apply to a merger or consolidation
of another corporation with or into the Company pursuant to which both of the following conditions
are applicable: (i) the Company is the surviving corporation and (ii) the outstanding shares of
Common Stock of the Company are not changed or converted into any other securities or property
(including cash) or changed in number or character or reclassified pursuant to the terms of such
merger or consolidation.

     As evidence of the kind and amount of shares of stock or other securities or property
(including cash) into which Securities may properly be convertible after any such consolidation,
merger or sale, or as to the appropriate adjustments of the conversion prices applicable with
respect thereto, the Trustee shall be furnished with and may accept the certificate or opinion of
an independent certified public accountant with respect thereto; and, in the absence of bad faith
on the part of the Trustee, the Trustee may conclusively rely thereon, and shall not be responsible
or accountable to any Holder of Securities for any provision in conformity therewith or approved by
such independent certified accountant which may be contained in said supplemental indenture.

SECTION 1410. Duties of Trustee Regarding Conversion.

     Neither the Trustee nor any conversion agent shall at any time be under any duty or
responsibility to any Holder of Securities of any series that is convertible into Common Stock of
the Company to determine whether any facts exist which may require any adjustment of the conversion
price, or with respect to the nature or extent of any such adjustment when made, or with respect to
the method employed, whether herein or in any supplemental indenture, any resolutions of the Board
of Directors or written instrument executed by one or more officers of the Company provided to be
employed in making the same. Neither the Trustee nor any conversion agent shall be accountable with
respect to the validity or value (or the kind or amount) of any shares of Common Stock of the
Company, or of any securities or property, which may at any time be issued or delivered upon the
conversion of any Securities and neither the Trustee nor any conversion agent makes any
representation with respect thereto. Subject to the provisions of Section 601, neither the Trustee
nor any conversion agent shall be responsible for any failure of the Company to issue, transfer or
deliver any shares of its Common Stock or stock certificates or other securities or property upon
the surrender of any Security for the purpose of conversion or to

-64-

 

comply with any of the covenants of the Company contained in this Article Fourteen or in the
applicable supplemental indenture, resolutions of the Board of Directors or written instrument
executed by one or more duly authorized officers of the Company.

SECTION 1411. Repayment of Certain Funds Upon Conversion.

     Any funds which at any time shall have been deposited by the Company or on its behalf with the
Trustee or any other paying agent for the purpose of paying the principal of, and premium, if any,
and interest, if any, on any of the Securities (including, but not limited to, funds deposited for
the sinking fund referred to in Article Twelve hereof and funds deposited pursuant to Article
Thirteen hereof) and which shall not be required for such purposes because of the conversion of
such Securities as provided in this Article Fourteen shall after such conversion be repaid to the
Company by the Trustee upon the Company’s written request.

     This instrument may be executed in any number of counterparts, each of which so executed shall
be deemed to be an original, but all such counterparts shall together constitute but one and the
same instrument.

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

	 	 	 	 	 
	 	THOMAS
WEISEL PARTNERS GROUP, INC., the Company

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

	 	 	 	 	 
	 	Attest:	 
	 	 	 
	 	 	 	 
	 	Authorized Officer	 
	 

	 	 	 	 	 
	 	THE BANK OF NEW YORK MELLON TRUST
COMPANY, N.A., 
not in its individual capacity but solely as Trustee

 	 
	 	 	 	 
	 	By:  	__________________________
 	 
	 	 	       Authorized Signatory	 
	 

-65-exv4w6

Exhibit 4.6

 

 

THOMAS WEISEL PARTNERS GROUP, INC.

TO

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.

Trustee

 

Indenture

Dated as of                              , 20

 

Subordinated Debt Securities

 

 

 

 

Certain Sections of this Indenture relating to Sections 310 through 318,

inclusive, of the Trust Indenture Act of 1939:

	 	 	 
	Trust Indenture	 	 
	Act Section	 	    Indenture Section
	 
	§ 310(a)(1)
	 	609

	(a)(2)
	 	609

	(a)(3)
	 	Not Applicable

	(a)(4)
	 	Not Applicable

	(b)
	 	608

	 	 	610

	§ 311(a)
	 	613

	(b)
	 	613

	§ 312(a)
	 	701

	 	 	702

	(b)
	 	702

	(c)
	 	702

	§ 313(a)
	 	703

	(b)
	 	703

	(c)
	 	703

	(d)
	 	703

	§ 314(a)
	 	704

	(a)(4)
	 	101

	 	 	1004

	(b)
	 	Not Applicable

	(c)(1)
	 	102

	(c)(2)
	 	102

	(c)(3)
	 	Not Applicable

	(d)
	 	Not Applicable

	(e)
	 	102

	§ 315(a)
	 	601

	(b)
	 	602

	(c)
	 	601

	(d)
	 	601

	(e)
	 	514

	§ 316(a)
	 	101

	(a)(1)(A)
	 	502

	 	 	512

	(a)(1)(B)
	 	513

	(a)(2)
	 	Not Applicable

	(b)
	 	508

	(c)
	 	104

	§ 317(a)(1)
	 	503

	(a)(2)
	 	504

	(b)
	 	1003

	§ 318(a)
	 	107

 

			
	Note:	 	This reconciliation and tie shall not, for any purpose, be deemed to be a part of the Indenture.

 

 

TABLE OF CONTENTS

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 
	 	 	 	 	 	 
	ARTICLE One

	 
	 	 	 	 	 	 
	Definitions and Other Provisions of General Application

	 
	 	 	 	 	 	 
	SECTION 101.

	 	Definitions
	 	 	1	 
	 

	 	Act
	 	 	2	 
	 

	 	Affiliate
	 	 	2	 
	 

	 	Authenticating Agent
	 	 	2	 
	 

	 	Board of Directors
	 	 	2	 
	 

	 	Board Resolution
	 	 	2	 
	 

	 	Business Day
	 	 	2	 
	 

	 	Commission
	 	 	2	 
	 

	 	Common Stock
	 	 	2	 
	 

	 	Company
	 	 	2	 
	 

	 	Company Request
	 	 	3	 
	 

	 	Company Order
	 	 	3	 
	 

	 	Control
	 	 	3	 
	 

	 	Corporate Trust Office
	 	 	3	 
	 

	 	Corporation
	 	 	3	 
	 

	 	Covenant Defeasance
	 	 	3	 
	 

	 	Defaulted Interest
	 	 	3	 
	 

	 	Defeasance
	 	 	3	 
	 

	 	Depositary
	 	 	3	 
	 

	 	Event of Default
	 	 	3	 
	 

	 	Exchange Act
	 	 	3	 
	 

	 	Expiration Date
	 	 	3	 
	 

	 	Global Security
	 	 	4	 
	 

	 	Holder
	 	 	4	 
	 

	 	Indenture
	 	 	4	 
	 

	 	Interest
	 	 	4	 
	 

	 	Interest Payment Date
	 	 	4	 
	 

	 	Investment Company Act
	 	 	4	 
	 

	 	Maturity
	 	 	4	 
	 

	 	Notice of Default
	 	 	4	 
	 

	 	Officers’ Certificate
	 	 	4	 
	 

	 	Opinion of Counsel
	 	 	4	 
	 

	 	Original Issue Discount Security
	 	 	4	 
	 

	 	Outstanding
	 	 	4	 
	 

	 	Paying Agent
	 	 	5	 
	 

	 	Person
	 	 	5	 
	 

	 	Place of Payment
	 	 	5	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the Indenture.

-i-

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 
	 	 	 	 	 	 
	 

	 	Predecessor Security
	 	 	6	 
	 

	 	Redemption Date
	 	 	6	 
	 

	 	Redemption Price
	 	 	6	 
	 

	 	Regular Record Date
	 	 	6	 
	 

	 	Securities
	 	 	6	 
	 

	 	Securities Act
	 	 	6	 
	 

	 	Security Register
	 	 	6	 
	 

	 	Security Registrar
	 	 	6	 
	 

	 	Special Record Date
	 	 	6	 
	 

	 	Stated Maturity
	 	 	6	 
	 

	 	Trust Indenture Act
	 	 	6	 
	 

	 	Trustee
	 	 	7	 
	 

	 	U.S. Government Obligation
	 	 	7	 
	 

	 	Vice President
	 	 	7	 
	 
	 	 	 	 	 	 
	SECTION 102.

	 	Compliance Certificates and Opinions
	 	 	7	 
	 
	 	 	 	 	 	 
	SECTION 103.

	 	Form of Documents Delivered to Trustee
	 	 	7	 
	 
	 	 	 	 	 	 
	SECTION 104.

	 	Acts of Holders; Record Dates
	 	 	8	 
	 
	 	 	 	 	 	 
	SECTION 105.

	 	Notices, Etc., to Trustee and Company
	 	 	10	 
	 
	 	 	 	 	 	 
	SECTION 106.

	 	Notice to Holders; Waiver
	 	 	10	 
	 
	 	 	 	 	 	 
	SECTION 107.

	 	Conflict with Trust Indenture Act
	 	 	11	 
	 
	 	 	 	 	 	 
	SECTION 108.

	 	Effect of Headings and Table of Contents
	 	 	11	 
	 
	 	 	 	 	 	 
	SECTION 109.

	 	Successors and Assigns
	 	 	11	 
	 
	 	 	 	 	 	 
	SECTION 110.

	 	Separability Clause
	 	 	11	 
	 
	 	 	 	 	 	 
	SECTION 111.

	 	Benefits of Indenture
	 	 	11	 
	 
	 	 	 	 	 	 
	SECTION 112.

	 	Governing Law
	 	 	11	 
	 
	 	 	 	 	 	 
	SECTION 113.

	 	Legal Holidays
	 	 	11	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

-ii-

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 
	 	 	 	 	 	 
	ARTICLE Two

	 
	 	 	 	 	 	 
	Security Forms

	 
	 	 	 	 	 	 
	SECTION 201.

	 	Forms Generally
	 	 	12	 
	 
	 	 	 	 	 	 
	SECTION 202.

	 	Form of Face of Security
	 	 	12	 
	 
	 	 	 	 	 	 
	SECTION 203.

	 	Form of Reverse of Security
	 	 	14	 
	 
	 	 	 	 	 	 
	SECTION 204.

	 	Form of Legend for Global Securities
	 	 	18	 
	 
	 	 	 	 	 	 
	SECTION 205.

	 	Form of Trustee’s Certificate of Authentication
	 	 	18	 
	 
	 	 	 	 	 	 
	SECTION 206.

	 	Form of Conversion Notice
	 	 	19	 
	 
	 	 	 	 	 	 
	ARTICLE Three

	 
	 	 	 	 	 	 
	The Securities

	 
	 	 	 	 	 	 
	SECTION 301.

	 	Amount Unlimited; Issuable in Series
	 	 	20	 
	 
	 	 	 	 	 	 
	SECTION 302.

	 	Denominations
	 	 	23	 
	 
	 	 	 	 	 	 
	SECTION 303.

	 	Execution, Authentication, Delivery and Dating
	 	 	23	 
	 
	 	 	 	 	 	 
	SECTION 304.

	 	Temporary Securities
	 	 	24	 
	 
	 	 	 	 	 	 
	SECTION 305.

	 	Registration; Registration of Transfer and Exchange
	 	 	24	 
	 
	 	 	 	 	 	 
	SECTION 306.

	 	Mutilated, Destroyed, Lost and Stolen Securities
	 	 	26	 
	 
	 	 	 	 	 	 
	SECTION 307.

	 	Payment of Interest; Interest Rights Preserved
	 	 	27	 
	 
	 	 	 	 	 	 
	SECTION 308.

	 	Persons Deemed Owners
	 	 	28	 
	 
	 	 	 	 	 	 
	SECTION 309.

	 	Cancellation
	 	 	28	 
	 
	 	 	 	 	 	 
	SECTION 310.

	 	Computation of Interest
	 	 	29	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

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	 	 	 	 	Page
	 
	 	 	 	 	 	 
	ARTICLE Four

	 
	 	 	 	 	 	 
	Satisfaction and Discharge

	 
	 	 	 	 	 	 
	SECTION 401.

	 	Satisfaction and Discharge of Indenture
	 	 	29	 
	 
	 	 	 	 	 	 
	SECTION 402.

	 	Application of Trust Money
	 	 	30	 
	 
	 	 	 	 	 	 
	ARTICLE Five

	 
	 	 	 	 	 	 
	Remedies

	 
	 	 	 	 	 	 
	SECTION 501.

	 	Events of Default
	 	 	30	 
	 
	 	 	 	 	 	 
	SECTION 502.

	 	Acceleration of Maturity; Rescission and Annulment
	 	 	32	 
	 
	 	 	 	 	 	 
	SECTION 503.

	 	Collection of Indebtedness and Suits for Enforcement by Trustee
	 	 	33	 
	 
	 	 	 	 	 	 
	SECTION 504.

	 	Trustee May File Proofs of Claim
	 	 	33	 
	 
	 	 	 	 	 	 
	SECTION 505.

	 	Trustee May Enforce Claims Without Possession of Securities
	 	 	34	 
	 
	 	 	 	 	 	 
	SECTION 506.

	 	Application of Money Collected
	 	 	34	 
	 
	 	 	 	 	 	 
	SECTION 507.

	 	Limitation on Suits
	 	 	34	 
	 
	 	 	 	 	 	 
	SECTION 508.

	 	Unconditional Right of Holders to Receive Principal, Premium and
Interest and to Convert
	 	 	35	 
	 
	 	 	 	 	 	 
	SECTION 509.

	 	Restoration of Rights and Remedies
	 	 	35	 
	 
	 	 	 	 	 	 
	SECTION 510.

	 	Rights and Remedies Cumulative
	 	 	35	 
	 
	 	 	 	 	 	 
	SECTION 511.

	 	Delay or Omission Not Waiver
	 	 	35	 
	 
	 	 	 	 	 	 
	SECTION 512.

	 	Control by Holders
	 	 	36	 
	 
	 	 	 	 	 	 
	SECTION 513.

	 	Waiver of Past Defaults
	 	 	36	 
	 
	 	 	 	 	 	 
	SECTION 514.

	 	Undertaking for Costs
	 	 	36	 
	 
	 	 	 	 	 	 
	SECTION 515.

	 	Waiver of Usury, Stay or Extension Laws
	 	 	36	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

-iv-

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 
	 	 	 	 	 	 
	ARTICLE Six

	 
	 	 	 	 	 	 
	The Trustee

	 
	 	 	 	 	 	 
	SECTION 601.

	 	Certain Duties and Responsibilities
	 	 	37	 
	 
	 	 	 	 	 	 
	SECTION 602.

	 	Notice of Defaults
	 	 	38	 
	 
	 	 	 	 	 	 
	SECTION 603.

	 	Certain Rights of Trustee
	 	 	38	 
	 
	 	 	 	 	 	 
	SECTION 604.

	 	Not Responsible for Recitals or Issuance of Securities
	 	 	39	 
	 
	 	 	 	 	 	 
	SECTION 605.

	 	May Hold Securities and Act as Trustee Under Other Indentures
	 	 	39	 
	 
	 	 	 	 	 	 
	SECTION 606.

	 	Money Held in Trust
	 	 	40	 
	 
	 	 	 	 	 	 
	SECTION 607.

	 	Compensation and Reimbursement
	 	 	40	 
	 
	 	 	 	 	 	 
	SECTION 608.

	 	Conflicting Interests
	 	 	40	 
	 
	 	 	 	 	 	 
	SECTION 609.

	 	Corporate Trustee Required; Eligibility
	 	 	41	 
	 
	 	 	 	 	 	 
	SECTION 610.

	 	Resignation and Removal; Appointment of Successor
	 	 	41	 
	 
	 	 	 	 	 	 
	SECTION 611.

	 	Acceptance of Appointment by Successor
	 	 	42	 
	 
	 	 	 	 	 	 
	SECTION 612.

	 	Merger, Conversion, Consolidation or Succession to Business
	 	 	43	 
	 
	 	 	 	 	 	 
	SECTION 613.

	 	Preferential Collection of Claims Against Company
	 	 	44	 
	 
	 	 	 	 	 	 
	SECTION 614.

	 	Appointment of Authenticating Agent
	 	 	44	 
	 
	 	 	 	 	 	 
	ARTICLE Seven

	 
	 	 	 	 	 	 
	Holders’ Lists and Reports by Trustee and Company

	 
	 	 	 	 	 	 
	SECTION 701.

	 	Company to Furnish Trustee Names and Addresses of Holders
	 	 	45	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

-v-

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 
	 	 	 	 	 	 
	SECTION 702.

	 	Preservation of Information; Communications to Holders
	 	 	45	 
	 
	 	 	 	 	 	 
	SECTION 703.

	 	Reports by Trustee
	 	 	46	 
	 
	 	 	 	 	 	 
	SECTION 704.

	 	Reports by Company
	 	 	46	 
	 
	 	 	 	 	 	 
	ARTICLE Eight

	 
	 	 	 	 	 	 
	Consolidation, Merger, Conveyance, Transfer or Lease

	 
	 	 	 	 	 	 
	SECTION 801.

	 	Company May Consolidate, Etc., Only on Certain Terms
	 	 	47	 
	 
	 	 	 	 	 	 
	SECTION 802.

	 	Successor Substituted
	 	 	47	 
	 
	 	 	 	 	 	 
	ARTICLE Nine

	 
	 	 	 	 	 	 
	Supplemental Indentures

	 
	 	 	 	 	 	 
	SECTION 901.

	 	Supplemental Indentures Without Consent of Holders
	 	 	48	 
	 
	 	 	 	 	 	 
	SECTION 902.

	 	Supplemental Indentures With Consent of Holders
	 	 	49	 
	 
	 	 	 	 	 	 
	SECTION 903.

	 	Execution of Supplemental Indentures
	 	 	50	 
	 
	 	 	 	 	 	 
	SECTION 904.

	 	Effect of Supplemental Indentures
	 	 	50	 
	 
	 	 	 	 	 	 
	SECTION 905.

	 	Conformity with Trust Indenture Act
	 	 	50	 
	 
	 	 	 	 	 	 
	SECTION 906.

	 	Reference in Securities to Supplemental Indentures
	 	 	50	 
	 
	 	 	 	 	 	 
	ARTICLE Ten

	 
	 	 	 	 	 	 
	Covenants

	 
	 	 	 	 	 	 
	SECTION 1001.

	 	Payment of Principal, Premium and Interest
	 	 	51	 
	 
	 	 	 	 	 	 
	SECTION 1002.

	 	Maintenance of Office or Agency
	 	 	51	 
	 
	 	 	 	 	 	 
	SECTION 1003.

	 	Money for Securities Payments to Be Held in Trust
	 	 	52	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

-vi-

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 
	 	 	 	 	 	 
	SECTION 1004.

	 	Statement by Officers as to Default
	 	 	53	 
	 
	 	 	 	 	 	 
	SECTION 1005.

	 	Existence
	 	 	53	 
	 
	 	 	 	 	 	 
	SECTION 1006.

	 	Waiver of Certain Covenants
	 	 	53	 
	 
	 	 	 	 	 	 
	ARTICLE Eleven

	 
	 	 	 	 	 	 
	Redemption of Securities

	 
	 	 	 	 	 	 
	SECTION 1101.

	 	Applicability of Article
	 	 	53	 
	 
	 	 	 	 	 	 
	SECTION 1102.

	 	Election to Redeem; Notice to Trustee
	 	 	54	 
	 
	 	 	 	 	 	 
	SECTION 1103.

	 	Selection by Trustee of Securities to Be Redeemed
	 	 	54	 
	 
	 	 	 	 	 	 
	SECTION 1104.

	 	Notice of Redemption
	 	 	55	 
	 
	 	 	 	 	 	 
	SECTION 1105.

	 	Deposit of Redemption Price
	 	 	55	 
	 
	 	 	 	 	 	 
	SECTION 1106.

	 	Securities Payable on Redemption Date
	 	 	56	 
	 
	 	 	 	 	 	 
	SECTION 1107.

	 	Securities Redeemed in Part
	 	 	56	 
	 
	 	 	 	 	 	 
	ARTICLE Twelve

	 
	 	 	 	 	 	 
	Sinking Funds

	 
	 	 	 	 	 	 
	SECTION 1201.

	 	Applicability of Article
	 	 	56	 
	 
	 	 	 	 	 	 
	SECTION 1202.

	 	Satisfaction of Sinking Fund Payments with Securities
	 	 	57	 
	 
	 	 	 	 	 	 
	SECTION 1203.

	 	Redemption of Securities for Sinking Fund
	 	 	57	 
	 
	 	 	 	 	 	 
	ARTICLE Thirteen

	 
	 	 	 	 	 	 
	Defeasance and Covenant Defeasance

	 
	 	 	 	 	 	 
	SECTION 1301.

	 	Company’s Option to Effect Defeasance or Covenant
Defeasance
	 	 	57	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the Indenture.

-vii-

 

	 	 	 	 	 	 	 
	 	 	 	 	Page
	 
	 	 	 	 	 	 
	SECTION 1302.

	 	Defeasance and Discharge
	 	 	58	 
	 
	 	 	 	 	 	 
	SECTION 1303.

	 	Covenant Defeasance
	 	 	58	 
	 
	 	 	 	 	 	 
	SECTION 1304.

	 	Conditions to Defeasance or Covenant Defeasance
	 	 	58	 
	 
	 	 	 	 	 	 
	SECTION 1305.

	 	Deposited Money and U.S. Government Obligations to Be Held in
Trust; Miscellaneous Provisions
	 	 	60	 
	 
	 	 	 	 	 	 
	SECTION 1306.

	 	Reinstatement
	 	 	61	 
	 
	 	 	 	 	 	 
	ARTICLE Fourteen

	 
	 	 	 	 	 	 
	Conversion of Securities

	 
	 	 	 	 	 	 
	SECTION 1401.

	 	Applicability of Article
	 	 	61	 
	 
	 	 	 	 	 	 
	SECTION 1402.

	 	Exercise of Conversion Privilege
	 	 	61	 
	 
	 	 	 	 	 	 
	SECTION 1403.

	 	No Fractional Shares
	 	 	62	 
	 
	 	 	 	 	 	 
	SECTION 1404.

	 	Adjustment of Conversion Price
	 	 	63	 
	 
	 	 	 	 	 	 
	SECTION 1405.

	 	Notice of Certain Corporate Actions
	 	 	63	 
	 
	 	 	 	 	 	 
	SECTION 1406.

	 	Reservation of Shares of Common Stock
	 	 	64	 
	 
	 	 	 	 	 	 
	SECTION 1407.

	 	Payment of Certain Taxes Upon Conversion
	 	 	64	 
	 
	 	 	 	 	 	 
	SECTION 1408.

	 	Nonassessability
	 	 	64	 
	 
	 	 	 	 	 	 
	SECTION 1409.

	 	Effect of Consolidation or Merger on Conversion Privilege
	 	 	65	 
	 
	 	 	 	 	 	 
	SECTION 1410.

	 	Duties of Trustee Regarding Conversion
	 	 	65	 
	 
	 	 	 	 	 	 
	SECTION 1411.

	 	Repayment of Certain Funds Upon Conversion
	 	 	66	 
	 
	 	 	 	 	 	 
	Testimonium	 	 	69	 
	 
	 	 	 	 	 	 
	Signatures and Seals	 	 	69	 

 

			
	Note:	 	This table of contents shall not, for any purpose, be deemed to be a part of the
Indenture.

-viii-

 

     INDENTURE, dated as of       , 20    , between Thomas Weisel Partners Group, Inc., a
corporation duly organized and existing under the laws of the State of Delaware (herein called the
“Company”), having its principal executive office at One Montgomery Street, San Francisco,
California 94104, and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee (herein called the
“Trustee”).

Recitals of the Company

     The Company has duly authorized the execution and delivery of this Indenture to provide for
the issuance from time to time of its unsecured debentures, notes or other evidences of
indebtedness (herein called the “Securities”), to be issued in one or more series as provided in
this Indenture.

     All things necessary to make this Indenture a valid agreement of the Company, in accordance
with its terms, have been done.

     Now, Therefore, This Indenture Witnesseth:

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

ARTICLE ONE

Definitions and Other Provisions

of General Application

SECTION 101. Definitions.

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

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

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

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

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

 

     (5)
“including” means including without limitation;

     (6) 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.

     “Act”, when used with respect to any Holder, has the meaning specified in Section 104.

     “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” when used with respect to any specified Person means the
power to direct the management and policies of such Person, directly or indirectly, whether through
the ownership of voting securities, by contract or otherwise; and the terms “controlling” and
“controlled” have meanings correlative to the foregoing.

     “Authenticating Agent” means any Person authorized by the Trustee pursuant to Section 614 to
act on behalf of the Trustee to authenticate Securities of one or more series.

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

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

     “Business Day”, when used with respect to any Place of Payment, means each Monday, Tuesday,
Wednesday, Thursday and Friday which is not a day on which banking institutions in that Place of
Payment are authorized or obligated by law, regulation or executive order to close.

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

     “Common Stock” includes any stock of any class of the Company which has no preference in
respect of dividends or of amounts payable in the event of any voluntary or involuntary
liquidation, dissolution or winding-up of the Company and which is not subject to redemption by the
Company; provided, however, subject to the provisions of Section 1409, shares issuable on
conversions of Securities shall include only shares of the class designated as Common Stock of the
Company at the date of this Indenture or shares of any class or classes resulting from any
reclassification or reclassifications thereof and which have no preference in respect of dividends
or of amounts payable in the event of any voluntary or involuntary liquidation, dissolution or
winding-up of the Company and which are not subject to redemption by the Company; provided,
further, that if at any time there shall be more than one
such resulting class, the shares of each such class then so issuable shall be substantially in
the proportion which the total number of shares of such class resulting from all such
reclassifications bears to the total number of shares of all such classes resulting from all such
reclassifications.

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

-2-

 

     “Company Request” or “Company Order” means a written request or order signed in the name of
the Company by its Chairman of the Board, its Vice Chairman of the Board, its President or a Vice
President, and by its principal financial officer, its Treasurer, an Assistant Treasurer, its
Secretary or an Assistant Secretary, and delivered to the Trustee.

     “control” when used with respect to any specified Person means the power to direct the
management and policies of such Person, directly or indirectly, whether through the ownership of
voting securities, by contract or otherwise; and the terms “controlling” and “controlled” shall
have the meanings correlative to the foregoing.

     “Corporate Trust Office” means the corporate trust office of the Trustee at 700 S. Flower Street, Suite 500, Los Angeles, CA., 90017 Attn: Corporate Trust Administration or the office or agency of the Trustee at which at any particular time its
corporate trust business shall be principally administered.

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

     “Covenant Defeasance” has the meaning specified in Section 1303.

     “Debt” means (without duplication), with respect to any Person, whether recourse is to all or
a portion of the assets of such Person and whether or not contingent, (i) every obligation of such
person for money borrowed, (ii) every obligation of such Person evidenced by bonds, debentures,
notes or other similar instruments, including obligations incurred in connection with the
acquisition of property, assets or businesses, (iii) every reimbursement obligation of such Person
with respect to letters of credit, bankers’ acceptances or similar facilities issued for the
account of such Person, (iv) every obligation of such Person issued or assumed as the deferred
purchase price of property or services (but excluding trade accounts payable or accrued liabilities
arising in the ordinary course of business), (v) the maximum fixed redemption or repurchase price
of redeemable stock of such Person at the time or determination and (vi) every obligation of the
type referred to in Clauses (i) through (v) of another Person and all dividends of another Person
the payment of which, in either case, such Person has guaranteed or is responsible or liable,
directly or indirectly, as obligor, guarantor or otherwise.

     “Defaulted Interest” has the meaning specified in Section 307.

     “Defeasance” has the meaning specified in Section 1302.

     “Depositary” means, with respect to Securities of any series issuable in whole or in part in
the form of one or more Global Securities, a clearing agency registered under the Exchange Act that
is designated to act as Depositary for such Securities as contemplated by Section 301 until a successor will have been appointed and become such pursuant to the applicable provisions of this Indenture.

     “Event of Default” has the meaning specified in Section 501.

     “Exchange Act” means the Securities Exchange Act of 1934 and any statute successor thereto, in
each case as amended from time to time.

     “Expiration Date” has the meaning specified in Section 104.

-3-

 

     “Global Security” means a Security that evidences all or part of the Securities of any series
and bears the legend set forth in Section 204 (or such legend as may be specified as contemplated
by Section 301 for such Securities).

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

     “Indenture” means this instrument as originally executed and as it may from time to time be
supplemented or amended by one or more indentures supplemental hereto entered into pursuant to the
applicable provisions hereof, including, for all purposes of this instrument and any such
supplemental indenture, the provisions of the Trust Indenture Act that are deemed to be a part of
and govern this instrument and any such supplemental indenture, respectively. The term “Indenture”
shall also include the terms of particular series of Securities established as contemplated by
Section 301.

     “interest”, when used with respect to an Original Issue Discount Security which by its terms
bears interest only after Maturity, means interest payable after Maturity.

     “Interest Payment Date”, when used with respect to any Security, means the Stated Maturity of
an installment of interest on such Security.

     “Investment Company Act” means the Investment Company Act of 1940 and any statute successor
thereto, in each case as amended from time to time.

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

     “Notice of Default” means a written notice of the kind specified in Section 501(4).

     “Officers’ Certificate” means a certificate signed by the Chairman of the Board, a Vice
Chairman of the Board, the President or a Vice President, and by the principal financial officer,
the Treasurer, an Assistant Treasurer, the Secretary or an Assistant Secretary, of the Company, and
delivered to the Trustee. One of the officers signing an Officers’ Certificate given pursuant to
Section 1004 shall be the principal executive, financial or accounting officer of the Company.

     “Opinion of Counsel” means a written opinion of counsel, who may be counsel for, or an
employee of, the Company, and who shall be reasonably acceptable to the Trustee.

     “Original Issue Discount Security” means any Security which provides for an amount less than
the principal amount thereof to be due and payable upon a declaration of acceleration of the
Maturity thereof pursuant to Section 502.

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

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

-4-

 

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

     (3) Securities as to which Defeasance has been effected pursuant to Section 1302; and

     (4) Securities which have been paid pursuant to Section 306 or in exchange for or in
lieu of which other Securities have been authenticated and delivered pursuant to this
Indenture, other than any such Securities in respect of which there shall have been
presented to the Trustee proof satisfactory to it that such Securities are held by a bona
fide purchaser in whose hands such Securities are valid obligations of the Company;

provided, however, that in determining whether the Holders of the requisite principal amount of the
Outstanding Securities have given, made or taken any request, demand, authorization, direction,
notice, consent, waiver or other action hereunder as of any date, (A) the principal amount of an
Original Issue Discount Security which shall be deemed to be Outstanding shall be the amount of the
principal thereof which would be due and payable as of such date upon acceleration of the Maturity
thereof to such date pursuant to Section 502, (B) if, as of such date, the principal amount payable
at the Stated Maturity of a Security is not determinable, the principal amount of such Security
which shall be deemed to be Outstanding shall be the amount as specified or determined as
contemplated by Section 301, (C) the principal amount of a Security denominated in one or more
foreign currencies or currency units which shall be deemed to be
Outstanding shall be the U.S. dollar equivalent, determined as of such date in the manner provided
as contemplated by Section 301, of the principal amount of such Security (or, in the case of a
Security described in Clause (A) or (B) above, of the amount determined as provided in such
Clause), and (D) Securities owned by the Company or any other obligor upon the Securities or any
Affiliate of the Company or of such other obligor shall be disregarded and deemed not to be
Outstanding, except that, in determining whether the Trustee shall be protected in relying upon any
such request, demand, authorization, direction, notice, consent, waiver or other action, only
Securities which the Trustee knows to be so owned shall be so disregarded. Securities so owned
which have been pledged in good faith may be regarded as Outstanding if the pledgee establishes to
the satisfaction of the Trustee the pledgee’s right so to act with respect to such Securities and
that the pledgee is not the Company or any other obligor upon the Securities or any Affiliate of
the Company or of such other obligor.

     “Paying Agent” means any Person authorized by the Company to pay the principal of or any
premium or interest on any Securities on behalf of the Company.

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

     “Place of Payment”, when used with respect to the Securities of any series, means the place or
places where the principal of and any premium and interest on the Securities of that series are
payable as specified as contemplated by Section 301.

-5-

 

     “Predecessor Security” of any particular Security means every previous Security evidencing all
or a portion of the same debt as that evidenced by such particular Security; and, for the purposes
of this definition, any Security authenticated and delivered under Section 306 in exchange for or
in lieu of a mutilated, destroyed, lost or stolen Security shall be deemed to evidence the same
debt as the mutilated, destroyed, lost or stolen Security.

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

     “Redemption Price”, when used with respect to any Security to be redeemed, means the price at
which it is to be redeemed pursuant to this Indenture.

     “Regular Record Date” for the interest payable on any Interest Payment Date on the Securities
of any series means the date specified for that purpose as contemplated by Section 301.

     “Securities” has the meaning stated in the first recital of this Indenture and more
particularly means any Securities authenticated and delivered under this Indenture.

     “Securities Act” means the Securities Act of 1933 and any statute successor thereto, in each
case as amended from time to time.

     “Security Register” and “Security Registrar” have the respective meanings specified in Section
305.

     “Senior Debt” means the principal of (and premium, if any) and interest, if any, (including
interest accruing on or after the filing of any petition in bankruptcy or for reorganization
relating to the Company to the extent that such claim for post-petition interest is allowed in such
proceeding) on Debt, including all fees and other amounts payable in connection with such
indebtedness, any obligations of the Company in respect of overdrafts, foreign exchange contracts
and currency exchange agreements, letters of credit, bankers’ acceptances, interest rate protection
agreements, and any loans or advances from banks, whether or not evidenced by notes or similar
instruments and all amendments, renewals, extensions, modifications and refundings of any such
indebtedness or obligation, whether incurred on or prior to the date of this Indenture or
thereafter incurred, unless, in the instrument creating or evidencing the same or pursuant to which
the same is outstanding, it is provided that such obligations are not superior in right of payment
to the Securities or to other Debt which is pari passu with, or subordinated to, the Securities;
provided, however, that Senior Debt shall not be deemed to include the Securities.

     “Special Record Date” for the payment of any Defaulted Interest means a date fixed by the
Trustee pursuant to Section 307.

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

     “Trustee” means the Person named as the “Trustee”
 in the first paragraph of this instrument until a successor Trustee shall have become such pursuant to the applicable provisions of this Indenture,
and thereafter “Trustee”
 shall mean or include each Person who is then a Trustee hereunder, and if at any time there is more than one
such Person, “Trustee” as used with respect to the Securities of any series shall mean the Trustee with respect to Securities of that series.

     “Trust Indenture Act” means the Trust Indenture Act of 1939 as in force at the date as of
which this instrument was executed; provided, however, that in the event the Trust Indenture Act

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of 1939 is amended after such date, “Trust Indenture Act” means, to the extent required by any such
amendment, the Trust Indenture Act of 1939 as so amended.

     “Trust
Officer” means, with
respect to the Trustee, any Vice President,
any Assistant Treasurer, any Assistant Trust Officer, any Trust Officer or any
other officer associated with the corporate trust department of the Trustee customarily
 performing functions similar to those performed by any of the above designated
officers and also, means, with respect to a
particular corporate trust matter, any other officer to whom such matter is
referred because of that officer’s knowledge of and familiarity with the
 particular subject and who shall have direct responsibility for the administration
 of this Indenture.

     “U.S. Government Obligation” has the meaning specified in Section 1304.

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

SECTION 102. Compliance Certificates and Opinions.

     Upon any application or request by the Company to the Trustee to take any action under any
provision of this Indenture, the Company shall furnish to the Trustee  certificates and
opinions as may be required under the Trust Indenture Act or as set
forth herein. Each such certificate or opinion with respect to compliance with a condition or covenant provided
for in this Indenture shall be in form and substance reasonably
satisfactory to the Trustee and include,

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

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

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

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

SECTION 103. Form of Documents Delivered to Trustee.

     In any case where several matters are required to be certified by, or covered by an opinion
of, any specified Person, it is not necessary that all such matters be certified by, or covered by
the opinion of, only one such Person, or that they be so certified or covered by only

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one document, but one such Person may certify or give an opinion with respect to some matters and one or more
other such Persons as to other matters, and any such Person may certify or give an opinion as to
such matters in one or several documents.

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

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

SECTION 104. Acts of Holders; Record Dates.

     Any request, demand, authorization, direction, notice, consent, waiver or other action
provided or permitted by this Indenture to be given, made 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. The Trustee shall promptly deliver to
the Company copies of all such instrument or instruments and records delivered to the Trustee. Such
instrument or instruments (and the action embodied therein and evidenced thereby) are herein
sometimes referred to as the “Act” of the Holders signing such instrument or instruments. Proof of
execution of any such instrument or of a writing appointing any such agent shall be sufficient for
any purpose of this Indenture and (subject to Section 601) conclusive in favor of the Trustee and
the Company, if made in the manner provided in this Section.

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

     The ownership of Securities shall be proved by the Security Register.

     Any request, demand, authorization, direction, notice, consent, waiver or other Act of the
Holder of any Security shall bind every future Holder of the same Security and the Holder of every
Security issued upon the registration of transfer thereof or in exchange therefor or in lieu

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thereof in respect of anything done, omitted or suffered to be done by the Trustee or the Company
in reliance thereon, whether or not notation of such action is made upon such Security.

     The Company may set any day as a record date for the purposes of determining the Holders of
Outstanding Securities of any series entitled to give, make or take any request, demand,
authorization, direction, vote, notice, consent, waiver or other action provided or permitted by
this Indenture to be given, made or taken by Holders of Securities of such series, and determining
whether the requisite proportion of Outstanding Securities held by such Holders have authorized or
agreed or consented to such request, demand, authorization, direction, vote, notice, consent,
waiver or other action (it being understood that with respect to such determination, the
Outstanding Securities shall be computed as of such record date), provided that the Company may not
set a record date for, and the provisions of this paragraph shall not apply with respect to, the
giving or making of any notice, declaration, request or direction referred to in the next
paragraph. If any record date is set pursuant to this paragraph, the Holders of Outstanding
Securities of the relevant series on such record date, and no other Holders, shall be entitled to
take the relevant action, whether or not such Holders remain Holders after such record date;
provided that no such action shall be effective hereunder unless taken on or prior to the
applicable Expiration Date by Holders of the requisite principal amount of Outstanding Securities
of such series on such record date. Nothing in this paragraph shall be construed to prevent the
Company from setting a new record date for any action for which a record date has previously
been set pursuant to this paragraph (whereupon the record date previously set shall automatically
and with no action by any Person be cancelled and of no effect), and nothing in this paragraph
shall be construed to render ineffective any action taken by Holders of the requisite principal
amount of Outstanding Securities of the relevant series on the date such action is taken. Promptly
after any record date is set pursuant to this paragraph, the Company, at its own expense, shall
cause notice of such record date, the proposed action by Holders and the applicable Expiration Date
to be given to the Trustee in writing and to each Holder of Securities of the relevant series in
the manner set forth in Section 106.

     The Trustee may set any day as a record date for the purposes of determining the Holders of
Outstanding Securities of any series entitled to join in the giving or making of (i) any Notice of
Default, (ii) any declaration of acceleration referred to in Section 502, (iii) any request to
institute proceedings referred to in Section 507(2) or (iv) any direction referred to in Section
512, in each case with respect to Securities of such series, and determining whether the requisite
proportion of Outstanding Securities held by such Holders have authorized or agreed or consented to
such request, demand, authorization, direction, vote, notice, consent, waiver or other action (it
being understood that with respect to such determination, the Outstanding Securities shall be
computed as of such record date). If any record date is set pursuant to this paragraph, the Holders
of Outstanding Securities of such series on such record date, and no other Holders, shall be
entitled to join in such notice, declaration, request or direction, whether or not such Holders
remain Holders after such record date; provided that no such action shall be effective hereunder
unless taken on or prior to the applicable Expiration Date by Holders of the requisite principal
amount of Outstanding Securities of such series on such record date. Nothing in this paragraph
shall be construed to prevent the Trustee from setting a new record date for any action for which a
record date has previously been set pursuant to this paragraph (whereupon the record date
previously set shall automatically and with no action by any Person be cancelled and of no effect),
and nothing in this paragraph shall be construed to render ineffective any action taken by Holders
of the requisite principal amount of Outstanding Securities of the relevant series on the date such
action is taken. Promptly after any record date is set pursuant to this paragraph, the Trustee, at
the

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Company’s expense, shall cause notice of such record date, the proposed action by Holders and
the applicable Expiration Date to be given to the Company in writing and to each Holder of
Securities of the relevant series in the manner set forth in Section 106.

     With respect to any record date set pursuant to this Section, the party hereto which sets such
record dates may designate any day as the “Expiration Date” and from time to time may change the
Expiration Date to any earlier or later day; provided that no such change shall be effective unless
notice of the proposed new Expiration Date is given to the other party hereto in writing, and to
each Holder of Securities of the relevant series in the manner set forth in Section 106, on or
prior to the existing Expiration Date. If an Expiration Date is not designated with respect to any
record date set pursuant to this Section, the party hereto which set such record date shall be
deemed to have initially designated the 180th day after such record date as the Expiration Date
with respect thereto, subject to its right to change the Expiration Date as provided in this
paragraph. Notwithstanding the foregoing, no Expiration Date shall be later than the 180th day
after the applicable record date.

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

SECTION 105. Notices, Etc., to Trustee and Company.

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

     (1) the Trustee by any Holder or by the Company shall be sufficient for purposes other than with respect to securities for payment or for registrations of transfer or exchange, if made, given, furnished or filed in writing (or by facsimile transmissions to The Bank of New York Mellon Trust Company, N.A., 700 S. Flower Street., Suite 500, Los Angeles, CA. 90017 Attn: Corporate Trust
 Administration, Telecopy: (213) 630-6298,  provided that oral confirmation of receipt shall have been received)
to or with the Trustee at its Corporate Trust Office, Attention:
Corporate Trust Administration, or

     (2) if, for purposes of Section 305 (with respect to securities for payment or for
registrations of transfer or exchange) to The Bank of New York Mellon, 111
Sanders Creek Parkway, Syracuse, New York 13057, or

     (3) the Company by the Trustee or by any Holder shall be sufficient for every purpose
hereunder (unless otherwise herein expressly provided) if in writing and mailed,
first-class postage prepaid, to the Company addressed to it at the address of its principal
office specified in the first paragraph of this instrument or at any other address
previously furnished in writing to the Trustee by the Company, Attention: General Counsel.

     Notwithstanding
anything to the contrary herein, the Trustee agrees to accept and act upon instructions
or directions pursuant to this Indenture sent by unsecured e-mail, facsimile transmission
 or other similar unsecured electronic methods including "*.pdf "form; provided, however,
that (a) the party providing such written instruction, after such transmission, promptly provides
 the originally executed instruction or direction to the Trustee, (b) such originally executed
 instruction or direction is signed by an authorized representative of the party
providing such instruction or direction and (c) such instructions or directions shall
 be accompanied by an incumbency certificate listing such authorized representative, which
 incumbency certificate shall be amended whenever a person is to be added or deleted
 from the listing. The party providing electronic instructions to the Trustee and its
Affiliates, agents and consultants expressly assumes any and all risks arising out of
 the use of any electronic method to submit instructions and directions to the Trustee,
 including without limitation the risk of the Trustee acting on unauthorized instructions,
 and the risk or interception, use or misuse by third parties.

SECTION 106. Notice to Holders; Waiver.

     Where this Indenture provides for notice to Holders of any event, such notice shall be
sufficiently given (unless otherwise herein expressly provided) if in writing and mailed,
first-class postage prepaid, to each Holder affected by such event, at its address as it appears in
the Security Register, not later than the latest date (if any), and not earlier than the earliest
date (if any), prescribed for the giving of such notice. In any case where notice to Holders is
given by mail, neither the failure to mail such notice, nor any defect in any notice so mailed, to
any particular Holder shall affect the sufficiency of such notice with respect to other Holders.
Where this Indenture provides for notice in any manner, such notice may be waived in writing by the
Person

-10-

 

entitled to receive such notice, either before or after the event, and such waiver shall be
the equivalent of such notice. Waivers of notice by Holders shall be filed with the Trustee, but
such filing shall not be a condition precedent to the validity of any action taken in reliance upon
such waiver.

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

     Notwithstanding
anything to the contrary contained herein, as long as the Securities are in the form of a Global
Security, notice to the Holders may be made electronically
 in accordance with procedures of the Depositary.

SECTION 107. Conflict with Trust Indenture Act.

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

SECTION 108. Effect of Headings and Table of Contents.

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

SECTION 109. Successors and Assigns.

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

whether so expressed or not.

SECTION 110. Separability Clause.

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

SECTION 111. Benefits of Indenture.

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

SECTION 112. Governing Law.

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

SECTION 113. Legal Holidays.

     In any case where any Interest Payment Date, Redemption Date or Stated Maturity of any
Security or the last date on which a Holder has the right to convert a Security at a particular
conversion price shall not be a Business Day at any Place of Payment, then (notwithstanding any

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other provision of this Indenture or of the Securities (other than a provision of any Security
which specifically states that such provision shall apply in lieu of this Section)) payment of
interest or principal (and premium, if any) or, if applicable to a particular series of Securities,
conversion need not be made at such Place of Payment on such date, but may be made on the next
succeeding Business Day at such Place of Payment with the same force and effect as if made on the
Interest Payment Date or Redemption Date, at the Stated Maturity or on such last day for
conversion, as the case may be.

ARTICLE TWO

Security Forms

SECTION 201. Forms Generally.

     The Securities of each series shall be in substantially the form set forth in this Article, or
in such other form as shall be established by or pursuant to a Board Resolution or in one or more
indentures supplemental hereto, in each case with such appropriate insertions, omissions,
substitutions and other variations as are required or permitted by this Indenture, and may have
such letters, numbers or other marks of identification and such legends or endorsements placed
thereon as may be required to comply with the rules of any securities exchange or Depositary
therefor or as may, consistently herewith, be determined by the officers executing such Securities,
as evidenced by their execution thereof. If the form of Securities of any series is established by
action taken pursuant to a Board Resolution, a copy of an appropriate record of such action shall
be certified by the Secretary or an Assistant Secretary of the Company and delivered to the Trustee
at or prior to the delivery of the Company Order contemplated by Section 303 for the authentication
and delivery of such Securities. Any such Board Resolution or record of such action shall have
attached thereto a true and correct copy of the form of Security referred to therein approved by or
pursuant to such Board Resolution.

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

SECTION 202. Form of Face of Security.

	 	 	 	 	 
	 

	 	THOMAS WEISEL PARTNERS GROUP,
INC.
	 	Cusip No.                     
	 
	 	 	 	 
	 

	 	[insert title of securities]	 	 

			
	No.          
	 	$     

     Thomas Weisel Partners Group, Inc., a corporation duly organized and existing under the laws
of Delaware (herein called the “Company”, which term includes any successor Person under the
Indenture hereinafter referred to), for value received, hereby promises to pay to                     
        , or registered assigns, the principal sum of                     
Dollars on                      [if the Security is to bear interest prior to
Maturity, insert —, and to pay interest thereon from       or from the most recent Interest
Payment Date to which interest

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has been paid or duly provided for, semi-annually on                     
and                      in each year, commencing       , at the rate of      % per annum,
until the principal hereof is paid or made available for payment [if applicable, insert — ,
provided that any principal and premium, and any such installment of interest, which is overdue
shall bear interest at the rate of ____% per annum (to the extent that the payment of such interest
shall be legally enforceable), from the dates such amounts are due until they are paid or made
available for payment, and such interest shall be payable on demand]. The interest so payable, and
punctually paid or duly provided for, on any Interest Payment Date will, as provided in such
Indenture, be paid to the Person in whose name this Security (or one or more Predecessor
Securities) is registered at the close of business on the Regular Record Date for such interest,
which shall be the                     
or                      (whether or not a Business Day), as the case may
be, next preceding such Interest Payment Date. Any such interest not so punctually paid or duly
provided for will forthwith cease to be payable to the Holder on such Regular Record Date and may
either be paid to the Person in whose name this Security (or one or more Predecessor Securities) is
registered at the close of business on a Special Record Date for the payment of such Defaulted
Interest to be fixed by the Trustee, notice whereof shall be given to Holders of Securities of this
series not less than 10 days prior to such Special Record Date, or be paid at any time in any other
lawful manner not inconsistent with the requirements of any securities exchange on which the
Securities of this series may be listed, and upon such notice as may be required by such
exchange, all as more fully provided in said Indenture].

[If the Security is not to bear interest prior to Maturity, insert — The principal of this
Security shall not bear interest except in the case of a default in payment of principal upon
acceleration, upon redemption or at Stated Maturity and in such case the overdue principal and any
overdue premium shall bear interest at the rate of ___% per annum (to the extent that the payment of
such interest shall be legally enforceable), from the dates such amounts are due until they are
paid or made available for payment. Interest on any overdue principal or premium shall be payable
on demand. [Any such interest on overdue principal or premium which is not paid on demand shall
bear interest at the rate of ___% per annum (to the extent that the payment of such interest on
interest shall be legally enforceable), from the date of such demand until the amount so demanded
is paid or made available for payment. Interest on any overdue interest shall be payable on
demand.]]

     Payment of the principal of (and premium, if any) and [if applicable, insert — any such]
interest on this Security will be made at the office or agency of the Company maintained for that
purpose in                      , in such coin or currency of the United States of America as at the time
of payment is legal tender for payment of public and private debts [if applicable, insert — ;
provided, however, that at the option of the Company payment of interest may be made by check
mailed to the address of the Person entitled thereto as such address shall appear in the Security
Register].

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

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

-13-

 

     In Witness Whereof, the Company has caused this instrument to be duly executed.

Dated:

	 	 	 
	 

	THOMAS WEISEL PARTNERS
GROUP, INC.
	 
	By	 

	 

	 	 

	Attest:
	 	 
	                                                  
	 	 

SECTION 203. Form of Reverse of Security.

     This Security is one of a duly authorized issue of securities of the Company (herein called
the “Securities”), issued and to be issued in one or more series under an Indenture, dated as of
                    
               
(herein called the “Indenture”, which term shall have the meaning
assigned to it in such instrument), between the Company and The Bank
of New York Mellon Trust  Company, N.A., as Trustee (herein
called the “Trustee”, which term includes any successor trustee under the Indenture), and reference
is hereby made to the Indenture and all indentures supplemental thereto for a statement of the
respective rights, limitations of rights, duties and immunities thereunder of the Company, the
Trustee, the holders of Senior Debt and the Holders of the Securities and of the terms upon which
the Securities are, and are to be, authenticated and delivered. This Security is one of the series
designated on the face hereof [if applicable, insert — , limited in aggregate principal amount to
$                     ].

     [If applicable, insert — The Securities of this series are subject to redemption upon not
less than 30 days’ notice by mail, [if applicable, insert — (1) on       in any year
commencing with the year       and ending with the year       through operation of the
sinking fund for this series at a Redemption Price equal to 100% of the principal amount, and (2)]
at any time [if applicable, insert — on or after       , 20   ], as a whole or in part, at the
election of the Company, at the following Redemption Prices (expressed as percentages of the
principal amount): If redeemed [if applicable, insert — on or before       , %, and if
redeemed] during the 12-month period beginning       of the years indicated,

	 	 	 	 	 	 	 
	 	 	Redemption	 	 	 	Redemption
	Year	 	Price	 	Year	 	Price
	 
	 	 	 	 	 	 

and thereafter at a Redemption Price equal to      % of the principal amount, together in the case
of any such redemption [if applicable, insert — (whether through operation of the sinking fund or
otherwise)] with accrued interest to the Redemption Date, but interest installments whose Stated
Maturity is on or prior to such Redemption Date will be payable to the Holders of such Securities,

-14-

 

or one or more Predecessor Securities, of record at the close of business on the relevant Record
Dates referred to on the face hereof, all as provided in the Indenture.]

     [If applicable, insert — The Securities of this series are subject to redemption upon not
less than 30 days’ notice by mail, (1) on       in any year commencing with the year       and
ending with the year       through operation of the sinking fund for this series at the Redemption
Prices for redemption through operation of the sinking fund (expressed as percentages of the
principal amount) set forth in the table below, and (2) at any time [if applicable, insert — on or
after                     ], as a whole or in part, at the election of the Company, at the Redemption
Prices for redemption otherwise than through operation of the sinking fund (expressed as
percentages of the principal amount) set forth in the table below: If redeemed during the 12-month
period beginning       of the years indicated,

	 	 	 	 	 
	 	 	Redemption Price	 	 
	 	 	For Redemption	 	Redemption Price For
	 	 	Through Operation	 	Redemption Otherwise
	 	 	of the	 	Than Through Operation
	Year	 	Sinking Fund	 	of the Sinking Fund
	 
	 	 	 	 

and thereafter at a Redemption Price equal to      % of the principal amount, together in the case
of any such redemption (whether through operation of the sinking fund or otherwise) with accrued
interest to the Redemption Date, but interest installments whose Stated Maturity is on or prior to
such Redemption Date will be payable to the Holders of such Securities, or one or more Predecessor
Securities, of record at the close of business on the relevant Record Dates referred to on the face
hereof, all as provided in the Indenture.]

     [If applicable, insert — Notwithstanding the foregoing, the Company may not, prior to
        , redeem any Securities of this series as contemplated by [if applicable, insert — Clause
(2) of] the preceding paragraph as a part of, or in anticipation of, any refunding operation by the
application, directly or indirectly, of moneys borrowed having an interest cost to the Company
(calculated in accordance with generally accepted financial practice) of less than      % per
annum.]

     [If applicable, insert — The sinking fund for this series provides for the redemption on
               
in each year beginning with the year       and ending with the year       of [if
applicable, insert — not less than $       (“mandatory sinking fund”) and not more than] $      aggregate
principal amount of Securities of this series. Securities of this series acquired or redeemed by
the Company otherwise than through [if applicable, insert — mandatory] sinking fund payments may
be credited against subsequent [if applicable, insert — mandatory] sinking fund payments otherwise
required to be made [if applicable, insert — , in the inverse order in which they become due].]

     [If the Security is subject to redemption of any kind, insert — In the event of redemption of
this Security in part only, a new Security or Securities of this series and of like tenor for the
unredeemed portion hereof will be issued in the name of the Holder hereof upon the cancellation
hereof.]

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     [If applicable, insert — The Indenture contains provisions for defeasance at any time of [the
entire indebtedness of this Security] [or] [certain restrictive covenants and Events of Default
with respect to this Security] [, in each case] upon compliance with certain conditions set forth
in the Indenture.]

     [If the Security is convertible into Common Stock of the Company, insert — Subject to the
provisions of the Indenture, the Holder of this Security is entitled, at its option, at any time on
or before [insert date] (except that, in case this Security or any portion hereof shall be called
for redemption, such right shall terminate with respect to this Security or portion hereof, as the
case may be, so called for redemption at the close of business on the date fixed for redemption as
provided in the Indenture unless the Company defaults in making the payment due upon redemption),
to convert the principal amount of this Security (or any portion hereof which is $1,000 or an
integral multiple thereof), into fully paid and non-assessable shares (calculated as to each
conversion to the nearest 1/100th of a share) of the Common Stock of the Company, as said shares
shall be constituted at the date of conversion, at the conversion price of $       principal amount of
Securities for each share of Common Stock, or at the adjusted conversion price in effect at the
date of conversion determined as provided in the Indenture, upon surrender of this Security,
together with the conversion notice hereon duly executed, to the Company at the designated office
or agency of the Company in               , accompanied (if so required by the Company) by
instruments of transfer, in form satisfactory to the Company and to the Trustee, duly executed by
the Holder or by its duly authorized attorney in writing. Such surrender shall, if made during any
period beginning at the close of business on a Regular Record Date and ending at the opening of
business on the Interest Payment Date next following such Regular Record Date (unless this Security
or the portion being converted shall have been called for redemption on a Redemption Date during
such period), also be accompanied by payment in funds acceptable to the Company of an amount equal
to the interest payable on such Interest Payment Date on the principal amount of this Security then
being converted. Subject to the aforesaid requirement for payment and, in the case of a conversion
after the Regular Record Date next preceding any Interest Payment Date and on or before such
Interest Payment Date, to the right of the Holder of this Security (or any Predecessor Security) of
record at such Regular Record Date to receive an installment of interest (with certain exceptions
provided in the Indenture), no adjustment is to be made on conversion for interest accrued hereon
or for dividends on shares of Common Stock issued on conversion. The Company is not required to
issue fractional shares upon any such conversion, but shall make adjustment therefor in cash on the
basis of the current market value of such fractional interest as provided in the Indenture. The
conversion price is subject to adjustment as provided in the Indenture. In addition, the Indenture
provides that in case of certain consolidations or mergers to which the Company is a party or the
sale of substantially all of the assets of the Company, the Indenture shall be amended, without the
consent of any Holders of Securities, so that this Security, if then outstanding, will be
convertible thereafter, during the period this Security shall be convertible as specified above,
only into the kind and amount of securities, cash and other property receivable upon the
consolidation, merger or sale by a holder of the number of shares of Common Stock into which this
Security might have been converted immediately prior to such consolidation, merger or sale
(assuming such holder of Common Stock failed to exercise any rights of election and received per
share the kind and amount received per share by a plurality of non-electing shares) [, assuming if
such consolidation, merger or sale is prior to      , 20    , that this Security were
convertible at the time of such consolidation, merger or sale at the initial conversion price
specified above as adjusted from      , 20     to such time pursuant to the Indenture]. In the
event of conversion of this Security in part only, a new Security

-16-

 

or Securities for the unconverted portion hereof shall be issued in the name of the Holder
hereof upon the cancellation hereof.]

     [If the Security is convertible into other securities of the Company, specify the conversion
features.]

     [If the Security is not an Original Issue Discount Security, insert — If an Event of Default
with respect to Securities of this series shall occur and be continuing, the principal of the
Securities of this series may be declared due and payable in the manner and with the effect
provided in the Indenture.]

     [If the Security is an Original Issue Discount Security, insert — If an Event of Default with
respect to Securities of this series shall occur and be continuing, an amount of principal of the
Securities of this series may be declared due and payable in the manner and with the effect
provided in the Indenture. Such amount shall be equal to — insert formula for determining the
amount. Upon payment (i) of the amount of principal so declared due and payable and (ii) of
interest on any overdue principal, premium and interest (in each case to the extent that the
payment of such interest shall be legally enforceable), all of the Company’s obligations in respect
of the payment of the principal of and premium and interest, if any, on the Securities of this
series shall terminate.]

     The Indenture permits, with certain exceptions as therein provided, the amendment thereof and
the modification of the rights and obligations of the Company and the rights of the Holders of the
Securities of each series to be affected under the Indenture at any time by the Company and the
Trustee with the consent of the Holders of more than 50% in principal amount of the Securities at
the time Outstanding of each series to be affected. The Indenture also contains provisions
permitting the Holders of specified percentages in principal amount of the Securities of each
series at the time Outstanding, on behalf of the Holders of all Securities of such series, to waive
compliance by the Company with certain provisions of the Indenture and certain past defaults under
the Indenture and their consequences. Any such consent or waiver by the Holder of this Security
shall be conclusive and binding upon such Holder and upon all future Holders of this Security and
of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu
hereof, whether or not notation of such consent or waiver is made upon this Security.

     As provided in and subject to the provisions of the Indenture, the Holder of this Security
shall not have the right to institute any proceeding with respect to the Indenture or for the
appointment of a receiver or trustee or for any other remedy thereunder, unless such Holder shall
have previously given the Trustee written notice of a continuing Event of Default with respect to
the Securities of this series, the Holders of not less than 25% in principal amount of the
Securities of this series at the time Outstanding shall have made written request to the Trustee to
institute proceedings in respect of such Event of Default as Trustee and offered the Trustee
reasonable indemnity, and the Trustee shall not have received from the Holders of a majority in
principal amount of Securities of this series at the time Outstanding a direction inconsistent with
such request, and shall have failed to institute any such proceeding, for 60 days after receipt of
such notice, request and offer of indemnity. The foregoing shall not apply to any suit instituted
by the Holder of this Security for the enforcement of any payment of principal hereof or any
premium or interest hereon on or after the respective due dates expressed herein.

-17-

 

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

     As provided in the Indenture and subject to certain limitations therein set forth, the
transfer of this Security is registrable in the Security Register, upon surrender of this Security
for registration of transfer at the office or agency of the Company in any place where the
principal of and any premium and interest on this Security are payable, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the Company and the
Security Registrar duly executed by, the Holder hereof or its attorney duly authorized in writing,
and thereupon one or more new Securities of this series and of like tenor, of authorized
denominations and for the same aggregate principal amount, will be issued to the designated
transferee or transferees.

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

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

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

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

SECTION 204. Form of Legend for Global Securities.

     Unless otherwise specified as contemplated by Section 301 for the Securities evidenced
thereby, every Global Security authenticated and delivered hereunder shall bear a legend in
substantially the following form:

This Security is a Global Security within the meaning of the Indenture hereinafter referred to
and is registered in the name of a Depositary or a nominee thereof. This Security may not be
exchanged in whole or in part for a Security registered, and no transfer of this Security in whole
or in part may be registered, in the name of any Person other than such Depositary or a nominee
thereof, except in the limited circumstances described in the Indenture.

SECTION 205. Form of Trustee’s Certificate of Authentication.

     The Trustee’s certificates of authentication shall be in substantially the following form:

-18-

 

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

THE BANK OF NEW YORK MELLON  TRUST COMPANY, N.A., 

not in its
individual capacity, but solely as Trustee

By____________________

Authorized Signatory

Dated:                                 

SECTION 206. Form of Conversion Notice.

     To Thomas Weisel Partners Group, Inc.:

     The undersigned owner of this Security hereby irrevocably exercises the option to convert this
Security, or portion hereof (which is $1,000 or an integral multiple thereof) below designated,
into shares of Common Stock of the Company in accordance with the terms of the Indenture referred
to in this Security, and directs that the shares issuable and deliverable upon the conversion,
together with any check in payment for fractional shares and any Securities representing any
unconverted principal amount hereof, be issued and delivered to the registered holder hereof unless
a different name has been indicated below. If this Notice is being delivered on a date after the
close of business on a Regular Record Date and prior to the opening of business on the related
Interest Payment Date (unless this Security or the portion thereof being converted has been called
for redemption on a Redemption Date within such period), this Notice is accompanied by payment, in
funds acceptable to the Company, of an amount equal to the interest payable on such Interest
Payment Date of the principal of this Security to be converted. If shares are to be issued in the
name of a person other than the undersigned, the undersigned will pay all transfer taxes payable
with respect hereto. Any amount required to be paid by the undersigned on account of interest
accompanies this Security.

	 	 	 
	Principal Amount to be Converted

(in an integral multiple of

$1,000, if less than all):

$

	 	 
	Dated _____________________
	 	 
	 

	 	________________________________
	 

	 	Signature(s) must be guaranteed by a commercial
bank or trust 
company or a member firm of a
national stock exchange if 
shares of Common
Stock are to be delivered, or Securities to 
be
issued, other than to and in the name of the
registered 
owner.
	 

	 	________________________________
	 

	 	                    Signature Guaranty

     Fill in for registration of shares of Common Stock and Security if to be issued otherwise than
to the registered holder.

-19-

 

	 	 	 
	________________________________

(Name)

	 	Social Security or other Taxpayer Identification

Number ________________________
	________________________________
	 	 
	(Address)

	 	 
	________________________________
	 	 
	Please print Name and Address

(including zip code number)
	 	 

[The above conversion notice is to be modified, as appropriate, for conversion into other
securities or property of the Company.]

ARTICLE THREE

The Securities

SECTION 301. Amount Unlimited; Issuable in Series.

     The aggregate principal amount of Securities which may be authenticated and delivered under
this Indenture is unlimited.

     The Securities may be issued in one or more series. There shall be established in or pursuant
to a Board Resolution and, subject to Section 303, set forth, or determined in the manner provided,
in an Officers’ Certificate, or established in one or more indentures supplemental hereto, prior to
the issuance of Securities of any series,

     (1) the title of the Securities of the series (which shall distinguish the Securities
of the series from Securities of any other series);

     (2) any limit upon the aggregate principal amount of the Securities of the series
which may be authenticated and delivered under this Indenture (except for Securities
authenticated and delivered upon registration of transfer of, or in exchange for, or in
lieu of, other Securities of the series pursuant to Section 304, 305, 306, 906 or 1107 and
except for any Securities which, pursuant to Section 303, are deemed never to have been
authenticated and delivered hereunder);

     (3) the Person to whom any interest on a Security of the series shall be payable, if
other than the Person in whose name that Security (or one or more Predecessor Securities)
is registered at the close of business on the Regular Record Date for such interest;

     (4) the date or dates on which the principal of any Securities of the series is
payable;

     (5) the rate or rates at which any Securities of the series shall bear interest, if
any, the date or dates from which any such interest shall accrue, the Interest Payment

-20-

 

Dates on which any such interest shall be payable and the Regular Record Date for any
such interest payable on any Interest Payment Date;

     (6) the place or places where the principal of and any premium and interest on any
Securities of the series shall be payable;

     (7) the period or periods within which, the price or prices at which and the terms and
conditions upon which any Securities of the series may be redeemed, in whole or in part, at
the option of the Company and, if other than by a Board Resolution, the manner in which any
election by the Company to redeem the Securities shall be evidenced;

     (8) the obligation, if any, of the Company to redeem or purchase any Securities of the
series pursuant to any sinking fund or analogous provisions or at the option of the Holder
thereof and the period or periods within which, the price or prices at which and the terms
and conditions upon which any Securities of the series shall be redeemed or purchased, in
whole or in part, pursuant to such obligation;

     (9) if other than denominations of $1,000 and any integral multiple thereof, the
denominations in which any Securities of the series shall be issuable;

     (10) if the amount of principal of or any premium or interest on any Securities of the
series may be determined with reference to an index or pursuant to a formula, the manner in
which such amounts shall be determined;

     (11) if other than the currency of the United States of America, the currency,
currencies or currency units in which the principal of or any premium or interest on any
Securities of the series shall be payable and the manner of determining the equivalent
thereof in the currency of the United States of America for any purpose, including for
purposes of the definition of “Outstanding” in Section 101;

     (12) if the principal of or any premium or interest on any Securities of the series is
to be payable, at the election of the Company or the Holder thereof, in one or more
currencies or currency units other than that or those in which such Securities are stated
to be payable, the currency, currencies or currency units in which the principal of or any
premium or interest on such Securities as to which such election is made shall be payable,
the periods within which and the terms and conditions upon which such election is to be
made and the amount so payable (or the manner in which such amount shall be determined);

     (13) if other than the entire principal amount thereof, the portion of the principal
amount of any Securities of the series which shall be payable upon declaration of
acceleration of the Maturity thereof pursuant to Section 502;

     (14) if the principal amount payable at the Stated Maturity of any Securities of the
series will not be determinable as of any one or more dates prior to the Stated Maturity,
the amount which shall be deemed to be the principal amount of such Securities as of any
such date for any purpose thereunder or hereunder, including the principal amount thereof
which shall be due and payable upon any Maturity other than the Stated

-21-

 

Maturity or which shall be deemed to be Outstanding as of any date prior to the Stated
Maturity (or, in any such case, the manner in which such amount deemed to be the principal
amount shall be determined);

     (15) if applicable, that the Securities of the series, in whole or any specified part,
shall be defeasible pursuant to Section 1302 or Section 1303 or both such Sections and, if
other than by a Board Resolution, the manner in which any election by the Company to
defease such Securities shall be evidenced;

     (16) the terms of any right to convert Securities of the series into shares of Common
Stock of the Company or other securities or property;

     (17) if applicable, that any Securities of the series shall be issuable in whole or in
part in the form of one or more Global Securities and, in such case, the respective
Depositaries for such Global Securities, the form of any legend or legends which shall be
borne by any such Global Security in addition to or in lieu of that set forth in Section
204 and any circumstances in addition to or in lieu of those set forth in Clause (2) of the
last paragraph of Section 305 in which any such Global Security may be exchanged in whole
or in part for Securities registered, and any transfer of such Global Security in whole or
in part may be registered, in the name or names of Persons other than the Depositary for
such Global Security or a nominee thereof;

     (18) any addition to or change in the Events of Default which applies to any
Securities of the series and any change in the right of the Trustee or the requisite
Holders of such Securities to declare the principal amount thereof due and payable pursuant
to Section 502;

     (19) any addition to or change in the covenants set forth in Article Ten which applies
to Securities of the series; and

     (20) any other terms of the series (which terms shall not be inconsistent with the
provisions of this Indenture, except as permitted by Section 901(5)).

     All Securities of any one series shall be substantially identical except as to denomination
and except as may otherwise be provided in or pursuant to the Board Resolution referred to above
and (subject to Section 303) set forth, or determined in the manner provided, in the Officers’
Certificate referred to above or in any such indenture supplemental hereto.

     If any of the terms of the series are established by action taken pursuant to a Board
Resolution, a copy of an appropriate record of such action shall be certified by the Secretary or
an Assistant Secretary of the Company and delivered to the Trustee at or prior to the delivery of
the Officers’ Certificate setting forth the terms of the series.

          The Securities shall be subordinated in right of payment to Senior Debt as provided in Article
Fifteen.

-22-

 

SECTION 302. Denominations.

     The Securities of each series shall be issuable only in registered form without coupons and
only in such denominations as shall be specified as contemplated by Section 301. In the absence of
any such specified denomination with respect to the Securities of any series, the Securities of
such series shall be issuable in denominations of $1,000 and any integral multiple thereof.

SECTION 303. Execution, Authentication, Delivery and Dating.

     The Securities shall be executed on behalf of the Company by its Chairman of the Board, its
Vice Chairman of the Board, its principal executive officer, its President or one of its Vice
Presidents, attested by its Secretary or one of its Assistant Secretaries. The signature of any of
these officers on the Securities may be manual or facsimile.

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

     At any time and from time to time after the execution and delivery of this Indenture, the
Company may deliver Securities of any series executed by the Company to the Trustee for
authentication, together with a Company Order for the authentication and delivery of such
Securities, and the Trustee in accordance with the Company Order shall authenticate and deliver
such Securities. If the form or terms of the Securities of the series have been established by or
pursuant to one or more Board Resolutions as permitted by Sections 201 and 301, in authenticating
such Securities, and accepting the additional responsibilities under this Indenture in relation to
such Securities, the Trustee shall be entitled to receive, and (subject to Section 601) shall be
fully protected in relying upon, an Opinion of Counsel stating,

     (1) if the form of such Securities has been established by or pursuant to Board
Resolution as permitted by Section 201, that such form has been established in conformity
with the provisions of this Indenture;

     (2) if the terms of such Securities have been established by or pursuant to Board
Resolution as permitted by Section 301, that such terms have been established in conformity
with the provisions of this Indenture; and

     (3) that such Securities, when authenticated and delivered by the Trustee and issued
by the Company in the manner and subject to any conditions specified in such Opinion of
Counsel, will constitute valid and legally binding obligations of the Company enforceable
in accordance with their terms, subject to bankruptcy, insolvency, fraudulent transfer,
reorganization, moratorium and similar laws of general applicability relating to or
affecting creditors’ rights and to general equity principles.

If such form or terms have been so established, the Trustee shall not be required to authenticate
such Securities if the issue of such Securities pursuant to this Indenture will affect the
Trustee’s own rights, duties or immunities under the Securities and this Indenture or otherwise in
a manner which is not reasonably acceptable to the Trustee.

-23-

 

     Notwithstanding the provisions of Section 301 and of the preceding paragraph, if all
Securities of a series are not to be originally issued at one time, it shall not be necessary to
deliver the Officers’ Certificate otherwise required pursuant to Section 301 or the Company Order
and Opinion of Counsel otherwise required pursuant to such preceding paragraph at or prior to the
authentication of each Security of such series if such documents are delivered at or prior to the
authentication upon original issuance of the first Security of such series to be issued.

     Each Security shall be dated the date of its authentication.

     No Security shall be entitled to any benefit under this Indenture or be valid or obligatory
for any purpose unless there appears on such Security a certificate of authentication substantially
in the form provided for herein executed by the Trustee by manual signature, and such certificate
upon any Security shall be conclusive evidence, and the only evidence, that such Security has been
duly authenticated and delivered hereunder. Notwithstanding the foregoing, if any Security shall
have been authenticated and delivered hereunder but never issued and sold by the Company, and the
Company shall deliver such Security to the Trustee for cancellation as provided in Section 309, for
all purposes of this Indenture such Security shall be deemed never to have been authenticated and
delivered hereunder and shall never be entitled to the benefits of this Indenture.

SECTION 304. Temporary Securities.

     Pending the preparation of definitive Securities of any series, the Company may execute, and
upon Company Order the Trustee shall authenticate and deliver, temporary Securities which are
printed, lithographed, typewritten, mimeographed or otherwise produced, in any authorized
denomination, substantially of the tenor of the definitive Securities in lieu of which they are
issued and with such appropriate insertions, omissions, substitutions and other variations as the
officers executing such Securities may determine, as evidenced by their execution of such
Securities.

     If temporary Securities of any series are issued, the Company will cause definitive Securities
of that series to be prepared without unreasonable delay. After the preparation of definitive
Securities of such series, the temporary Securities of such series shall be exchangeable for
definitive Securities of such series upon surrender of the temporary Securities of such series at
the office or agency of the Company in a Place of Payment for that series, without charge to the
Holder. Upon surrender for cancellation of any one or more temporary Securities of any series, the
Company shall execute and the Trustee shall authenticate and deliver in exchange therefor one or
more definitive Securities of the same series, of any authorized denominations and of like tenor
and aggregate principal amount. Until so exchanged, the temporary Securities of any series shall in
all respects be entitled to the same benefits under this Indenture as definitive Securities of such
series and tenor.

SECTION 305. Registration; Registration of Transfer and Exchange.

     The Company shall cause to be kept at the Corporate Trust Office of the Trustee a register
(the register maintained in such office and in any other office or agency of the Company in a Place
of Payment being herein sometimes collectively referred to as the “Security Register”) in which,
subject to such reasonable regulations as it may prescribe, the Company shall provide for the
registration of Securities and of transfers of Securities. The Trustee is hereby appointed

-24-

 

“Security Registrar” for the purpose of registering Securities and transfers of Securities as
herein provided.

     Upon surrender for registration of transfer of any Security of a series at the office or
agency of the Company in a Place of Payment for that series, the Company shall execute, and the
Trustee shall authenticate and deliver, in the name of the designated transferee or transferees,
one or more new Securities of the same series, of any authorized denominations and of like tenor
and aggregate principal amount.

     At the option of the Holder, Securities of any series may be exchanged for other Securities of
the same series, of any authorized denominations and of like tenor and aggregate principal amount,
upon surrender of the Securities to be exchanged at the office or agency of the Company in a Place
of Payment for that series. Whenever any Securities are so surrendered for exchange, the Company
shall execute, and the Trustee shall authenticate and deliver, the Securities which the Holder
making the exchange is entitled to receive.

     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.

     Every Security presented or surrendered for registration of transfer or for exchange shall (if
so required by the Company or the Trustee) be duly endorsed, or be accompanied by a written
instrument of transfer in form satisfactory to the Company and the Security Registrar duly
executed, by the Holder thereof or its attorney duly authorized in writing.

     No service charge shall be made for any registration of transfer or exchange of Securities,
but the Company may require payment of a sum sufficient to cover any tax or other governmental
charge that may be imposed in connection with any registration of transfer or exchange of
Securities, other than exchanges pursuant to Section 304, 906 or 1107 not involving any transfer.

     If the Securities of any series (or of any series and specified tenor) are to be redeemed in
part, the Company shall not be required (A) to issue, register the transfer of or exchange any
Securities of that series (or of that series and specified tenor, as the case may be) during a
period beginning at the opening of business 15 days before the day of the mailing of a notice of
redemption of any such Securities selected for redemption under Section 1103 and ending at the
close of business on the day of such mailing, or (B) to register the transfer of or exchange any
Security so selected for redemption in whole or in part, except the unredeemed portion of any
Security being redeemed in part.

     The provisions of Clauses (1), (2), (3) and (4) below shall apply only to Global Securities:

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

-25-

 

     (2) Notwithstanding any other provision in this Indenture, no Global Security may be
exchanged in whole or in part for Securities registered, and no transfer of a Global
Security in whole or in part may be registered, in the name of any Person other than the
Depositary for such Global Security or a nominee thereof unless (A) such Depositary (i) has
notified the Company that it is unwilling or unable to continue as Depositary for such
Global Security or (ii) has ceased to be a clearing agency registered under the Exchange
Act, (B) there shall have occurred and be continuing an Event of Default with respect to
such Global Security or (C) there shall exist such circumstances, if any, in addition to or
in lieu of the foregoing as have been specified for this purpose as contemplated by Section
301.

     (3) Subject to Clause (2) above, any exchange of a Global Security for other
Securities may be made in whole or in part, and all Securities issued in exchange for a
Global Security or any portion thereof shall be registered in such names as the Depositary
for such Global Security shall direct.

     (4) Every Security authenticated and delivered upon registration of transfer of, or in
exchange for or in lieu of, a Global Security or any portion thereof, whether pursuant to
this Section, Section 304, 306, 906 or 1107 or otherwise, shall be authenticated and
delivered in the form of, and shall be, a Global Security, unless such Security is
registered in the name of a Person other than the Depositary for such Global Security or a
nominee thereof.

SECTION 306. Mutilated, Destroyed, Lost and Stolen Securities.

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

     If there shall be delivered to the Company and the Trustee (i) evidence to their satisfaction
of the destruction, loss or theft of any Security and (ii) such security or indemnity as may be
required by them to save each of them and any agent of either of them harmless, then, in the
absence of notice to the Company or the Trustee that such Security has been acquired by a bona fide
purchaser, the Company shall execute and the Trustee shall authenticate and deliver, in lieu of any
such destroyed, lost or stolen Security, a new Security of the same series and 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 of any series 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

-26-

 

anyone, and shall be entitled to all the benefits of this Indenture equally and
proportionately with any and all other Securities of that series 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 307. Payment of Interest; Interest Rights Preserved.

     Except as otherwise provided as contemplated by Section 301 with respect to any series of
Securities, interest on any Security which is payable, and is punctually paid or duly provided for,
on any Interest Payment Date shall be paid to the Person in whose name that Security (or one or
more Predecessor Securities) is registered at the close of business on the Regular Record Date for
such interest.

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

     (1) The Company may elect to make payment of any Defaulted Interest to the Persons in
whose names the Securities of such series (or their respective Predecessor Securities) are
registered at the close of business on a Special Record Date for the payment of such
Defaulted Interest, which shall be fixed in the following manner. The Company shall notify
the Trustee in writing of the amount of Defaulted Interest proposed to be paid on each
Security of such series and the date of the proposed payment, and at the same time the
Company shall deposit with the Trustee an amount of money equal to the aggregate amount
proposed to be paid in respect of such Defaulted Interest or shall make arrangements
satisfactory to the Trustee for such deposit prior to the date of the proposed payment,
such money when deposited to be held in trust for the benefit of the Persons entitled to
such Defaulted Interest as in this Clause provided. Thereupon the Trustee shall fix a
Special Record Date for the payment of such Defaulted Interest which shall be not more than
15 days and not less than 10 days prior to the date of the proposed payment and not less
than 10 days after the receipt by the Trustee of the notice of the proposed payment. The
Trustee shall promptly notify the Company of such Special Record Date and, in the name and
at the expense of the Company, shall cause notice of the proposed payment of such Defaulted
Interest and the Special Record Date therefor to be given to each Holder of Securities of
such series in the manner set forth in Section 106, not less than 10 days prior to such
Special Record Date. Notice of the proposed payment of such Defaulted Interest and the
Special Record Date therefor having been so mailed, such Defaulted Interest shall be paid
to the Persons in whose names the Securities of such series (or their respective
Predecessor Securities) are registered at the close of business on such Special Record Date
and shall no longer be payable pursuant to the following Clause (2).

     (2) The Company may make payment of any Defaulted Interest on the Securities of any
series in any other lawful manner not inconsistent with the requirements of any securities
exchange on which such Securities may be listed, and upon such notice

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as may be required by such exchange, if, after notice given by the Company to the
Trustee of the proposed payment pursuant to this Clause, such manner of payment shall be
deemed practicable by the Trustee.

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

     Subject to the provisions of Section 1402, in the case of any Security (or any part thereof)
which is converted after any Regular Record Date and on or prior to the next succeeding Interest
Payment Date (other than any Security the principal of (or premium, if any, on) which shall become
due and payable, whether at Stated Maturity or by declaration of acceleration prior to such
Interest Payment Date), interest whose Stated Maturity is on such Interest Payment Date shall be
payable on such Interest Payment Date notwithstanding such conversion and such interest (whether or
not punctually paid or duly provided for) shall be paid to the Person in whose name that Security
(or any one or more Predecessor Securities) is registered at the close of business on such Regular
Record Date. Except as otherwise expressly provided in the immediately preceding sentence or in
Section 1402, in the case of any Security (or any part thereof) which is converted, interest whose
Stated Maturity is after the date of conversion of such Security (or such part thereof) shall not
be payable.

SECTION 308. Persons Deemed Owners.

     Prior to due presentment of a Security for registration of transfer, the Company, the Trustee
and any agent of the Company or the Trustee may treat the Person in whose name such Security is
registered as the owner of such Security for the purpose of receiving payment of principal of and
any premium and (subject to Section 307) any interest on such Security and for all other purposes
whatsoever, whether or not such Security be overdue, and neither the Company, the Trustee nor any
agent of the Company or the Trustee shall be affected by notice to the contrary.

SECTION 309. Cancellation.

     All Securities surrendered for payment, redemption, registration of transfer or exchange or
for credit against any sinking fund payment shall, if surrendered to any Person other than the
Trustee, be delivered to the Trustee and shall be promptly cancelled by it. The Company may at any
time deliver to the Trustee for cancellation any Securities previously authenticated and delivered
hereunder which the Company may have acquired in any manner whatsoever, and may deliver to the
Trustee (or to any other Person for delivery to the Trustee) for cancellation any Securities
previously authenticated hereunder which the Company has not issued and sold, and all Securities so
delivered shall be promptly cancelled by the Trustee. No Securities shall be authenticated in lieu
of or in exchange for any Securities cancelled as provided in this Section, except as expressly
permitted by this Indenture. All cancelled Securities held by the Trustee shall be disposed of as
directed by a Company Order.

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SECTION 310. Computation of Interest.

     Except as otherwise specified as contemplated by Section 301 for Securities of any series,
interest on the Securities of each series shall be computed on the basis of a 360-day year of
twelve 30-day months.

ARTICLE FOUR

Satisfaction and Discharge

SECTION 401. Satisfaction and Discharge of Indenture.

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

     (1) either

     (A) all Securities theretofore authenticated and delivered (other than (i)
Securities which have been destroyed, lost or stolen and which have been replaced
or paid as provided in Section 306 and (ii) Securities for whose payment money has
theretofore been deposited in trust or segregated and held in trust by the Company
and thereafter repaid to the Company or discharged from such trust, as provided in
Section 1003) have been delivered to the Trustee for cancellation; or

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

     (i) have become due and payable, or

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

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

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

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

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

     Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the
Company to the Trustee under Section 607, the obligations of the Trustee to any Authenticating
Agent under Section 614 and, if money shall have been deposited with the Trustee pursuant to
subclause (B) of Clause (1) of this Section, the obligations of the Trustee under Section 402 and
the last paragraph of Section 1003 shall survive.

SECTION 402. Application of Trust Money.

     Subject to the provisions of the last paragraph of Section 1003, all money deposited with the
Trustee pursuant to Section 401 shall be held in trust and applied by it, in accordance with the
provisions of the Securities and this Indenture, to the payment, either directly or through any
Paying Agent (including the Company acting as its own Paying Agent) as the Trustee may determine,
to the Persons entitled thereto, of the principal and any premium and interest for whose payment
such money has been deposited with the Trustee.

ARTICLE FIVE

Remedies

SECTION 501. Events of Default.

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

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

     (2) default in the payment of the principal of or any premium on any Security of that
series at its Stated Maturity; or

     (3) default in the deposit of any sinking fund payment, when and as due by the terms
of a Security of that series; or

     (4) default in the performance, or breach, of any covenant or warranty of the Company
in this Indenture (other than a covenant or warranty a default in whose performance or
whose breach is elsewhere in this Section specifically dealt with or which has expressly
been included in this Indenture solely for the benefit of series of Securities

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other than that series), and continuance of such default or breach for a period of 60
days after actual receipt by the Company of 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, which notice 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
aggregate principal amount of the Outstanding Securities of that series; or

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

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

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inability to pay its debts generally as they become due, or the taking of corporate
action by the Company in furtherance of any such action; or

     (8) any other Event of Default provided with respect to Securities of that series.

SECTION 502. Acceleration of Maturity; Rescission and Annulment.

     If an Event of Default (other than an Event of Default specified in Section 501(6) or 501(7))
with respect to Securities of any series at the time Outstanding occurs and is continuing, then in
every such case the Trustee or the Holders of not less than 25% in principal amount of the
Outstanding Securities of that series may declare the principal amount of all the Securities of
that series (or, if any Securities of that series are Original Issue Discount Securities, such
portion of the principal amount of such Securities as may be specified by the terms thereof) to be
due and payable immediately, by a notice in writing to the Company (and to the Trustee if given by
Holders), and upon any such declaration such principal amount (or specified amount) shall become
immediately due and payable. If an Event of Default specified in Section 501(6) or 501(7) with
respect to Securities of any series at the time Outstanding occurs, the principal amount of all the
Securities of that series (or, if any Securities of that series are Original Issue Discount
Securities, such portion of the principal amount of such Securities as may be specified by the
terms thereof) shall automatically, and without any declaration or other action on the part of the
Trustee or any Holder, become immediately due and payable.

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

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

     (A) all overdue interest on all Securities of that series,

     (B) the principal of (and premium, if any, on) any Securities of that series
which have become due otherwise than by such declaration of acceleration and any
interest thereon at the rate or rates prescribed therefor in such Securities,

     (C) to the extent that payment of such interest is lawful, interest upon
overdue interest at the rate or rates prescribed therefor in such Securities, and

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

     and

     (2) all Events of Default with respect to Securities of that series, other than the
non-payment of the principal of Securities of that series which have become due

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solely by such declaration of acceleration, have been cured or waived as provided in
Section 513.

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

SECTION 503. Collection of Indebtedness and Suits for Enforcement by Trustee.

     The Company covenants that if

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

     (2) default is made in the payment of the principal of (or premium, if any, on) any
Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the Holders of such
Securities, the whole amount then due and payable on such Securities for principal and any premium
and interest and, to the extent that payment of such interest shall be legally enforceable,
interest on any overdue principal and premium and on any overdue interest, at the rate or rates
prescribed therefor in such Securities, and, in addition thereto, such further amount as shall be
sufficient to cover the costs and expenses of collection, including the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel.

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

SECTION 504. Trustee May File Proofs of Claim.

     In case of any judicial proceeding relative to the Company (or any other obligor upon the
Securities), its property or its creditors, the Trustee shall be entitled and empowered, by
intervention in such proceeding or otherwise, to take any and all actions authorized under the
Trust Indenture Act in order to have claims of the Holders and the Trustee allowed in any such
proceeding. In particular, the Trustee shall be authorized to collect and receive any moneys or
other property payable or deliverable on any such claims and to distribute the same; and any
custodian, receiver, assignee, trustee, liquidator, sequestrator or other similar official in any
such judicial proceeding is hereby authorized by each Holder to make such payments to the Trustee
and, in the event that the Trustee shall consent to the making of such payments directly to the
Holders, to pay to the Trustee any amount due it for the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the
Trustee under Section 607.

     No provision of this Indenture shall be deemed to authorize the Trustee to authorize or
consent to or accept or adopt on behalf of any Holder any plan of reorganization, arrangement,
adjustment or composition affecting the Securities or the rights of any Holder thereof or to

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authorize the Trustee to vote in respect of the claim of any Holder in any such proceeding;
provided, however, that the Trustee may, on behalf of the Holders, vote for the election of a
trustee in bankruptcy or similar official and be a member of a creditors’ or other similar
committee.

SECTION 505. Trustee May Enforce Claims Without Possession of Securities.

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

SECTION 506. Application of Money Collected.

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

First: To the payment of all amounts due the Trustee under Section 607; and

Second:
Subject to Article Fifteen, to the payment first, of the amounts then due and
unpaid for principal of and any premium, if any, and second, interest on the Securities in respect
of which or for the benefit of which such money has been collected, ratably, without
preference or priority of any kind, according to the amounts due and payable on such
Securities for principal and any premium, if any, and interest, respectively.

SECTION 507. Limitation on Suits.

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

     (1)
such Holder has previously given written notice to the Trustee as
required hereunder of a continuing
Event of Default with respect to the Securities of that series;

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

     (3)
such Holder or Holders have properly indemnified  the Trustee
satisfactory to the Trustee, in its sole discretion,
against all costs, expenses and liabilities to be incurred in compliance with such request;

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

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

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

SECTION 508. Unconditional Right of Holders to Receive Principal, Premium and Interest and to
Convert.

     Notwithstanding any other provision in this Indenture, the Holder of any Security shall have
the right, which is absolute and unconditional, to receive payment of the principal of and any
premium and (subject to Section 307) interest on such Security on the respective Stated Maturities
expressed in such Security (or, in the case of redemption, on the Redemption Date), to convert such
Securities in accordance with Article Fourteen and to institute suit for the enforcement of any
such payment, and such rights shall not be impaired without the consent of such Holder.

SECTION 509. Restoration of Rights and Remedies.

     If the Trustee or any Holder has instituted any proceeding to enforce any right or remedy
under this Indenture and such proceeding has been discontinued or abandoned for any reason, or has
been determined adversely to the Trustee or to such Holder, then and in every such case, subject to
any determination in such proceeding, the Company, the Trustee and the Holders shall be restored
severally and respectively to their former positions hereunder and thereafter all rights and
remedies of the Trustee and the Holders shall continue as though no such proceeding had been
instituted.

SECTION 510. Rights and Remedies Cumulative.

     Except as otherwise provided with respect to the replacement or payment of mutilated,
destroyed, lost or stolen Securities in the last paragraph of Section 306, no right or remedy
herein conferred upon or reserved to the Trustee or to the Holders is intended to be exclusive of
any other right or remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or now or hereafter
existing at law or in equity or otherwise. The assertion or employment of any right or remedy
hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other
appropriate right or remedy.

SECTION 511. Delay or Omission Not Waiver.

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

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time to time, and as often as may be deemed expedient, by the Trustee (subject to the
limitations contained in this Indenture) or by the Holders, as the case may be.

SECTION 512. Control by Holders.

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

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

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

SECTION 513. Waiver of Past Defaults.

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

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

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

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

SECTION 514. Undertaking for Costs.

     All parties to this Indenture expressly agree, and each Holder of any Security by his or her acceptance thereof
 shall be deemed to have agreed, that any court may in its discretion require, in any suit for the enforcement of any right or remedy under this Indenture, or in any suit
against the Trustee for any action taken, suffered or omitted by it
as Trustee, the filing by
any party litigant in such suit of an undertaking to pay the costs of such suit, and that such court may in its discretion assess reasonable costs, including reasonable attorneys’ fees and expenses,

against any party litigant in such suit, having due regard to the merits and good faith of the claims or defenses made by such party litigant; but the provisions of this Section 514 shall not apply to

 any suit
instituted by the Trustee, to any suit instituted by any Holder or group of Holders, holding in the aggregate more than ten percent (10%) in aggregate principal amount of the Outstanding Securities,
 or to any suit instituted by any Holder
 for the enforcement of the payment of the principal of or any premium on the Security after the Stated Maturity or any interest (including any additional interest) on any Security after it is due
and payable.

SECTION 515. Waiver of Usury, Stay or Extension Laws.

     The Company covenants (to the extent that it may lawfully do so) that it will not at any time
insist upon, or plead, or in any manner whatsoever claim or take the benefit or advantage of, any
usury, stay or extension law wherever enacted, now or at any time hereafter in force, which may
affect the covenants or the performance of this Indenture; and the Company (to the extent

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that it may lawfully do so) hereby expressly waives all benefit or advantage of any such law
and covenants that it will not hinder, delay or impede the execution of any power herein granted to
the Trustee, but will suffer and permit the execution of every such power as though no such law had
been enacted.

ARTICLE SIX

The Trustee

SECTION 601. Certain Duties and Responsibilities.

     (a) The Trustee hereby accepts the trusts imposed on it by this Indenture and unless otherwise
provided herein, the duties and responsibilities of the Trustee shall be as provided by the Trust Indenture Act. Whether or not expressly so provided,
every provision of this Indenture relating to the conduct or affecting the liability of or affording protection to the Trustee is subject to this Article.

     Notwithstanding anything to the contrary herein or in the Trust Indenture Act, no provision of this Indenture shall require the Trustee to
expend or risk its own funds or otherwise incur any financial liability in the performance of any
of its duties hereunder, or in the exercise of any of its rights or powers, if it shall have
reasonable grounds for believing that repayment of such funds or
adequate bond or indemnity and  security against such
risk or liability is not reasonably assured to it.

     (b) Except during the continuance of an Event of Default, the Trustee undertakes to perform
such duties and only such duties as are specifically set forth in this Indenture, and no implied
covenants or obligations shall be read into this Indenture against the Trustee.

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

     (d) No provision of this Indenture shall be construed to relieve the Trustee from liability
for its own negligent action, its own negligent failure to act, or its own willful misconduct,
except that:

     (i) this Subsection shall not be construed to limit the effect of Subsection (a) 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 shall be proved that the Trustee was negligent in
ascertaining the pertinent facts; and

     (iii) the Trustee shall not be liable with respect to any action taken or omitted to
be taken by it in good faith in accordance with the direction of the Holders of a majority
in principal amount of the Outstanding Securities relating to the time, method and place of
conducting any proceeding for any remedy available to the Trustee, or exercising any trust
or power conferred upon the Trustee, under this Indenture.

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

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SECTION 602. Notice of Default.

     If
a default occurs hereunder with respect to Securities of any series,
and is continuing and is known to the Trustee as provided herein, the
Trustee will give
the Holders of Securities of such series notice of such default as and to the extent provided by
the Trust Indenture Act; provided, however, that in the case of any default of the character
specified in Section 501(4) with respect to Securities of such series, no such notice to Holders
shall be given until at least 30 days after the occurrence thereof. For the purpose of this
Section, the term “default” means any event which is, or after notice or lapse of time or both
would become, an Event of Default with respect to Securities of such series.

SECTION 603. Certain Rights of Trustee.

Subject to the provisions of Section 601:

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

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

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

     (4)
the Trustee may consult with experts and with legal counsel 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;

     (5) 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 or bond with security that is satisfactory to  the Trustee against the costs, expenses and liabilities which might be
incurred by it in compliance with such request or direction;

     (6) 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;

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     (7)
the Trustee may execute any of the trusts or powers hereunder and perform any
duty hereunder, either directly or by or through its agents,
attorneys, accountants, custodians or other experts  and the Trustee shall
not be answerable, accountable, responsible or liable for any
misconduct, default, negligence or neglect on the part of any agent,
attorney, accountants,  custodians or other experts if reasonable care has been
exercised in the appointment;

     (8) 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;

     (9) the Trustee shall not be deemed to have notice of any Default or Event of Default
unless a Trust Officer 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 and in the absence of the receipt of such notice or actual knowledge, the Trustee may conclusively be deemed to have no knowledge thereof;

     (10) 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, attorney, accountant,
custodian and other Person employed to act hereunder; and

     (11) the Trustee may request that the Company deliver an Officers’ Certificate or other certificate setting
forth the names of individuals and/or titles of officers authorized at such time to take
specified actions pursuant to this Indenture, which Officers’ Certificate may be signed by
any person authorized to sign an Officers’ Certificate, including any person specified as
so authorized in any such certificate previously delivered and not superseded.

SECTION 604. Not Responsible for Recitals or Issuance of Securities.

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

SECTION 605. May Hold Securities and Act as Trustee Under Other Indentures.

     The Trustee, any Authenticating Agent, any Paying Agent, any Security Registrar or any other
agent of the Company, in its individual or any other capacity, may become the owner or pledgee of
Securities and, subject to Sections 608 and 613, may otherwise deal with the Company with the same
rights it would have if it were not Trustee, Authenticating Agent, Paying Agent, Security Registrar
or such other agent.

     Subject to the limitations imposed by the Trust Indenture Act, nothing in this Indenture shall
prohibit the Trustee from becoming and acting as trustee under other indentures under which other
securities, or certificates of interest of participation in other securities, of the Company are
outstanding in the same manner as if it were not Trustee hereunder.

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SECTION 606. Money Held in Trust.

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

     The Trustee shall be under no duty (a) to file or record, or cause to be filed or
recorded, this Indenture or any instrument supplemental hereto, (b) to procure any further
order or additional instruments of further assurance, (c) to see to the delivery to it of any
personal property intended to be mortgaged or pledged hereunder or thereunder, (d) to do
any act which may be suitable to be done for the better maintenance of the lien or
security hereof, or (e) to give notice of the existence of such lien, or for extending or
supplementing the same or to see that any rights to the Trust estate and funds now or
hereafter to be transferred in trust hereunder are subject to the lien hereof.

SECTION 607. Compensation and Reimbursement.

The Company agrees

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

     (2)
the compensation of the Trustee shall not be limited to or by any provision of law
in regard to the compensation of trustees of an express trust;

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

     (4)
to indemnify the Trustee, and its officers, directors, agents and
employees, for, and to hold them harmless against, any and all losses, liabilities, damages, claims (whether or not litigated) or expenses  including taxes (other than taxes based upon, measured
by or determined by the income of the Trustee) incurred without negligence or bad faith on
their part, arising out of or in connection with the acceptance or administration of the
trust or trusts hereunder, including the costs and expenses of
defending themselves against any
claim (whether asserted by the Company, any Holder or any other person) or liability in
connection with the exercise or performance of any of its powers or
duties hereunder arising from the trust estate;

     (5)
that in no event shall the Trustee be responsible 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; and

     (6)
that the Trustee shall have a lien prior to the Securities as to all property and funds held by it
hereunder for any amount owing it or any predecessor Trustee pursuant
to this Section 607 for such compensation, expenses, advances and counsel fees incurred in or about the
execution of the trusts created hereby.  The Trustee’s rights to receive compensation,
reimbursement and indemnification of money due and owing hereunder at the time of the
Trustee’s resignation or removal shall survive the Trustee’s resignation or removal and
the termination of this Indenture and related financing and security documents.

     When the Trustee incurs expenses or renders services in connection with an Event of Default
specified in Section 501(6) or Section 501(7), the expenses (including the reasonable charges and
expenses of its counsel) and the compensation for the services are intended to constitute expenses
of administration under any applicable Federal or state 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.

SECTION 608. Conflicting Interests.

     If the Trustee has or shall acquire a conflicting interest within the meaning of the Trust
Indenture Act, the Trustee shall either eliminate such interest or resign, to the extent and in the
manner provided by, and subject to the provisions of, the Trust Indenture Act and this Indenture.

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To the extent permitted by such Act, the Trustee shall not be deemed to have a conflicting
interest by virtue of being a trustee under this Indenture with respect to Securities of more than
one series.

SECTION 609. Corporate Trustee Required; Eligibility.

     There shall at all times be one (and only one) Trustee hereunder with respect to the
Securities of each series, which may be Trustee hereunder for Securities of one or more other
series. The Trustee shall be a corporation or national banking association organized and doing business under the laws of the United States of America or of any state thereof, authorized to exercise corporate trust powers, and be a Person that is otherwise eligible pursuant to the Trust Indenture Act to act
as such and has a combined capital and surplus of at least $50,000,000. If any such Person
publishes reports of condition at least annually, pursuant to law or to the requirements of its
supervising or examining authority, then for the purposes of this Section and to the extent
permitted by the Trust Indenture Act, the combined capital and surplus of such Person shall be
deemed to be its combined capital and surplus as set forth in its most recent report of condition
so published. If at any time the Trustee with respect to the Securities of any series shall cease
to be eligible in accordance with the provisions of this Section, it shall resign immediately in
the manner and with the effect hereinafter specified in this Article.

SECTION 610. Resignation and Removal; Appointment of Successor.

     No resignation or removal of the Trustee and no appointment of a successor Trustee pursuant to
this Article shall become effective until the acceptance of appointment by the successor Trustee in
accordance with the applicable requirements of Section 611.

     The Trustee may resign at any time with respect to the Securities of one or more series by
giving written notice thereof to the Company. If the instrument of acceptance by a successor
Trustee required by Section 611 shall not have been delivered to the Trustee within 30 days after
the giving of such notice of resignation, the resigning Trustee may petition any court of competent
jurisdiction, at the expense of the Company, for the appointment of a successor Trustee with
respect to the Securities of such series.

     The Trustee may be removed at any time with respect to the Securities of any series by Act of
the Holders of a majority in principal amount of the Outstanding Securities of such series,
delivered to the Trustee and to the Company.

If at any time:

     (1) the Trustee shall fail to comply with Section 608 after written request therefor
by the Company or by any Holder who has been a bona fide Holder of a Security for at least
six months, or

     (2) the Trustee shall cease to be eligible under Section 609 and shall fail to resign
after written request therefor by the Company or by any such Holder, or

     (3) the Trustee shall become incapable of acting or shall be adjudged a bankrupt or
insolvent or a receiver of the Trustee or of its property shall be appointed or

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any public officer shall take charge or control of the Trustee or of its property or
affairs for the purpose of rehabilitation, conservation or liquidation,

then, in any such case, (A) the Company by a Board Resolution may remove the Trustee with respect
to all Securities, or (B) subject to Section 514, any Holder who has been a bona fide Holder of a
Security for at least six months may, on behalf of himself and all others similarly situated,
petition any court of competent jurisdiction for the removal of the Trustee with respect to all
Securities and the appointment of a successor Trustee or Trustees.

     If an instrument of acceptance by a successor Trustee shall not have been delivered to the
Trustee within 30 days after the giving of such notice of removal, the Trustee being removed may
petition, at the expense of the Company, any court of competent jurisdiction for the appointment of
a successor Trustee with respect to the Securities of such series. If the Trustee shall resign, be
removed or become incapable of acting, or if a vacancy shall occur in the office of Trustee for any
cause, with respect to the Securities of one or more series, the Company, by a Board Resolution,
shall promptly appoint a successor Trustee or Trustees with respect to the Securities of that or
those series (it being understood that any such successor Trustee may be appointed with respect to
the Securities of one or more or all of such series and that at any time there shall be only one
Trustee with respect to the Securities of any particular series) and shall comply with the
applicable requirements of Section 611. If, within one year after such resignation, removal or
incapability, or the occurrence of such vacancy, a successor Trustee with respect to the Securities
of any series shall be appointed by Act of the Holders of a majority in principal amount of the
Outstanding Securities of such series delivered to the Company and the retiring Trustee, the
successor Trustee so appointed shall, forthwith upon its acceptance of such appointment in
accordance with the applicable requirements of Section 611, become the successor Trustee with
respect to the Securities of such series and to that extent supersede the successor Trustee
appointed by the Company. If no successor Trustee with respect to the Securities of any series
shall have been so appointed by the Company or the Holders and accepted appointment in the manner
required by Section 611, any Holder who has been a bona fide Holder of a Security of such series
for at least six months may, on behalf of himself and all others similarly situated, petition any
court of competent jurisdiction for the appointment of a successor Trustee with respect to the
Securities of such series.

     The Company shall give notice of each resignation and each removal of the Trustee with respect
to the Securities of any series and each appointment of a successor Trustee with respect to the
Securities of any series to all Holders of Securities of such series in the manner provided in
Section 106. Each notice shall include the name of the successor Trustee with respect to the
Securities of such series and the address of its Corporate Trust Office.

SECTION 611. Acceptance of Appointment by Successor.

     In case of the appointment hereunder of a successor Trustee with respect to all Securities,
every such successor Trustee so appointed shall execute, acknowledge and deliver to the Company
and to the retiring Trustee an instrument accepting such appointment, and thereupon the resignation
or removal of the retiring Trustee shall become effective and such successor Trustee, without any
further act, deed or conveyance, shall become vested with all the rights, powers, trusts and duties
of the retiring Trustee; but, on the request of the Company or the successor Trustee, such retiring
Trustee shall, upon payment of its charges, execute and deliver an instrument transferring to such
successor Trustee all the rights, powers and trusts of the retiring

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Trustee and shall duly assign, transfer and deliver to such successor Trustee all property and
money held by such retiring Trustee hereunder.

     In case of the appointment hereunder of a successor Trustee with respect to the Securities of
one or more (but not all) series, the Company, the retiring Trustee and each successor Trustee with
respect to the Securities of one or more series shall execute and deliver an indenture supplemental
hereto wherein each successor Trustee shall accept such appointment and which (1) shall contain
such provisions as shall be necessary or desirable to transfer and confirm to, and to vest in, each
successor Trustee all the rights, powers, trusts and duties of the retiring Trustee with respect to
the Securities of that or those series to which the appointment of such successor Trustee relates,
(2) if the retiring Trustee is not retiring with respect to all Securities, shall contain such
provisions as shall be deemed necessary or desirable to confirm that all the rights, powers, trusts
and duties of the retiring Trustee with respect to the Securities of that or those series as to
which the retiring Trustee is not retiring shall continue to be vested in the retiring Trustee, and
(3) shall add to or change any of the provisions of this Indenture as shall be necessary to provide
for or facilitate the administration of the trusts hereunder by more than one Trustee, it being
understood that nothing herein or in such supplemental indenture shall constitute such Trustees
co-trustees of the same trust and that each such Trustee shall be trustee of a trust or trusts
hereunder separate and apart from any trust or trusts hereunder administered by any other such
Trustee; and upon the execution and delivery of such supplemental indenture the resignation or
removal of the retiring Trustee shall become effective to the extent provided therein and each such
successor Trustee, without any further act, deed or conveyance, shall become vested with all the
rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or
those series to which the appointment of such successor Trustee relates; but, on request of the
Company or any successor Trustee, such retiring Trustee shall duly assign, transfer and deliver to
such successor Trustee all property and money held by such retiring Trustee hereunder with respect
to the Securities of that or those series to which the appointment of such successor Trustee
relates.

     Upon request of any such successor Trustee, the Company shall execute any and all instruments
for more fully and certainly vesting in and confirming to such successor Trustee all such rights,
powers and trusts referred to in the first or second preceding paragraph, as the case may be.

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

SECTION 612. Merger, Conversion, Consolidation or Succession to Business.

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

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SECTION 613. Preferential Collection of Claims Against Company.

     If and when the Trustee shall be or become a creditor of the Company (or any other obligor
upon the Securities), the Trustee shall be subject to the provisions of the Trust Indenture Act
regarding the collection of claims (whether or not litigated) against the Company (or any such other obligor).

SECTION 614. Appointment of Authenticating Agent.

     The Trustee may appoint an Authenticating Agent or Agents with respect to one or more series
of Securities which shall be authorized to act on behalf of the Trustee to authenticate Securities
of such series issued upon original issue and upon exchange, registration of transfer or partial
redemption thereof or pursuant to Section 306, and Securities so authenticated shall be entitled to
the benefits of this Indenture and shall be valid and obligatory for all purposes as if
authenticated by the Trustee hereunder. Wherever reference is made in this Indenture to the
authentication and delivery of Securities by the Trustee or the Trustee’s certificate of
authentication, such reference shall be deemed to include authentication and delivery on behalf of
the Trustee by an Authenticating Agent and a certificate of authentication executed on behalf of
the Trustee by an Authenticating Agent. Each Authenticating Agent shall be acceptable to the
Company and shall at all times be a corporation organized and doing business under the laws of the
United States of America, any State thereof or the District of Columbia, authorized under such laws
to act as Authenticating Agent, having a combined capital and surplus of not less than $50,000,000
and subject to supervision or examination by Federal or State authority. If such Authenticating
Agent publishes reports of condition at least annually, pursuant to law or to the requirements of
said supervising or examining authority, then for the purposes of this Section, the combined
capital and surplus of such Authenticating Agent shall be deemed to be its combined capital and
surplus as set forth in its most recent report of condition so published. If at any time an
Authenticating Agent shall cease to be eligible in accordance with the provisions of this Section,
such Authenticating Agent shall resign immediately in the manner and with the effect specified in
this Section.

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

     An Authenticating Agent may resign at any time by giving written notice thereof to the Trustee
and to the Company. The Trustee may at any time terminate the agency of an Authenticating Agent by
giving written notice thereof to such Authenticating Agent and to the Company. Upon receiving such
a notice of resignation or upon such a termination, or in case at any time such Authenticating
Agent shall cease to be eligible in accordance with the provisions of this Section, the Trustee may
appoint a successor Authenticating Agent which shall be acceptable to the Company and shall give
notice of such appointment in the manner provided in Section 106 to all Holders of Securities of
the series with respect to which such Authenticating Agent will serve. Any successor Authenticating
Agent upon acceptance of its appointment hereunder shall become vested with all the rights, powers
and duties of its predecessor hereunder, with like effect

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as if originally named as an Authenticating Agent. No successor Authenticating Agent shall be
appointed unless eligible under the provisions of this Section.

     The Company agrees to pay to each Authenticating Agent from time to time reasonable
compensation for its services under this Section.

     If an appointment with respect to one or more series is made pursuant to this Section 614, the
Securities of such series may have endorsed thereon, in addition to the Trustee’s certificate of
authentication, an alternative certificate of authentication in the following form:

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

	 	 	 	 	 
	 	THE BANK
OF NEW YORK MELLON
TRUST  COMPANY, N.A.,

As Trustee

 	 
	 	By  	,	 
	 	 	As Authenticating Agent
 	 
	 	 	 
	 	By  	
 	 
	 	 	Authorized Signatory 	 

ARTICLE SEVEN

Holders’ Lists and Reports by Trustee and Company

SECTION 701. Company to Furnish Trustee Names and Addresses of Holders.

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

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

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

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

SECTION 702. Preservation of Information; Communications to Holders.

     The Trustee shall preserve, in as current a form as is reasonably practicable, the names and
addresses of Holders contained in the most recent list furnished to the Trustee as provided in

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Section 701 and the names and addresses of Holders received by the Trustee in its capacity as
Security Registrar. The Trustee may destroy any list furnished to it as provided in Section 701
upon receipt of a new list so furnished.

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

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

SECTION 703. Reports by Trustee.

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

     Reports so required to be transmitted at stated intervals of not more than 12 months shall be
transmitted no later than July 1 in each calendar year, commencing with the first July 1 after the
first issuance of Securities pursuant to this Indenture.

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

SECTION 704. Reports by Company.

     The Company shall file with the Trustee and the Commission, and transmit to Holders, such
information, documents and other reports, and such summaries thereof, as may be required pursuant
to the Trust Indenture Act at the times and in the manner provided pursuant to the Trust Indenture
Act; provided that any such information, documents or reports required to be filed with the
Commission pursuant to Section 13 or 15(d) of the Exchange Act shall be filed with the Trustee
within 15 days after the same is so required to be filed with the Commission.

     Delivery of such reports, information and documents to the Trustee is for informational
purposes only and the Trustee’s receipt of such shall not constitute constructive notice of any
information contained therein or determinable from information contained therein, including the
Company’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to
rely conclusively on Officers’ Certificates).

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ARTICLE EIGHT

Consolidation, Merger, Conveyance, Transfer or Lease

SECTION 801. Company May Consolidate, Etc., Only on Certain Terms.

     The Company shall not consolidate with or merge with or into any other Person or convey,
transfer or lease all or substantially all of its properties and assets to any Person, unless:

     (1) either (A) the Company shall be the continuing corporation or (B) the Person
formed by a consolidation with the Company or into which the Company is merged or the
Person which acquires by conveyance or transfer, or which leases, all or substantially all
of the properties and assets of the Company shall be a corporation, partnership or trust,
shall be organized and validly existing under the laws of the United States of America, any
State thereof or the District of Columbia or any province in Canada and shall expressly
assume, by an indenture supplemental hereto, executed and delivered to the Trustee, in form
satisfactory to the Trustee, the due and punctual payment of the principal of and any
premium and interest on all the Securities and the performance or observance of every
covenant of this Indenture on the part of the Company to be performed or observed and the
conversion rights shall be provided for in accordance with Article Fourteen, if applicable,
or as otherwise specified pursuant to Section 301, by supplemental indenture satisfactory
in form to the Trustee, executed and delivered to the Trustee, by the Person (if other than
the Company) formed by such consolidation or into which the Company shall have been merged
or by the Person which shall have acquired the Company’s assets;

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

     (3) the Company has delivered to the Trustee an Officers’ Certificate and an Opinion
of Counsel, each stating that (A) such consolidation, merger, conveyance, transfer or lease
and, if a supplemental indenture is required in connection with such transaction, such
supplemental indenture comply with this Article and that all conditions precedent herein
provided for relating to such transaction have been complied with and (B) in the case of a
merger or consolidation in which the Company is not the continuing corporation and in which
the successor to the Company is an entity organized under the laws of any province in
Canada, that such merger will not result in any material adverse tax consequences to any
Holders of the Securities.

SECTION 802. Successor Substituted.

     Upon any consolidation of the Company with, or merger of the Company into, any other Person or
any conveyance, transfer or lease of the properties and assets of the Company substantially as an
entirety in accordance with Section 801, the successor Person formed by such consolidation or into
which the Company is merged or to which such conveyance, transfer or lease is made shall succeed
to, and be substituted for, and may exercise every right and power of, the Company under this
Indenture with the same effect as if such successor Person had been

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named as the Company herein, and thereafter, except in the case of a lease, the predecessor
Person shall be relieved of all obligations and covenants under this Indenture and the Securities.

ARTICLE NINE

Supplemental Indentures

SECTION 901. Supplemental Indentures Without Consent of Holders.

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

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

     (2) to add to the covenants of the Company for the benefit of the Holders of all or
any series of Securities (and if such covenants are to be for the benefit of less than all
series of Securities, stating that such covenants are expressly being included solely for
the benefit of such series) or to surrender any right or power herein conferred upon the
Company; or

     (3) to add any additional Events of Default for the benefit of the Holders of all or
any series of Securities (and if such additional Events of Default are to be for the
benefit of less than all series of Securities, stating that such additional Events of
Default are expressly being included solely for the benefit of such series); or

     (4) to add to or change any of the provisions of this Indenture to such extent as
shall be necessary to permit or facilitate the issuance of Securities in bearer form,
registrable or not registrable as to principal, and with or without interest coupons, or to
permit or facilitate the issuance of Securities in uncertificated form; or

     (5) to add to, change or eliminate any of the provisions of this Indenture in respect
of one or more series of Securities, provided that any such addition, change or elimination
(A) shall neither (i) apply to any Security of any series created prior to the execution of
such supplemental indenture and entitled to the benefit of such provision nor (ii) modify
the rights of the Holder of any such Security with respect to such provision or (B) shall
become effective only when there is no such Security Outstanding; or

     (6) to secure the Securities; or

     (7) to establish the form or terms of Securities of any series as permitted by
Sections 201 and 301; or

     (8) to evidence and provide for the acceptance of appointment hereunder by a successor
Trustee with respect to the Securities of one or more series and to add to or

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change any of the provisions of this Indenture as shall be necessary to provide for or
facilitate the administration of the trusts hereunder by more than one Trustee, pursuant to
the requirements of Section 611; or

     (9) to make provision with respect to the conversion rights of Holders pursuant to the
requirements of Article Fourteen, including providing for the conversion of the securities
into any security (other than the Common Stock of the Company) or property of the Company;
or

     (10) to cure any ambiguity, to correct or supplement any provision herein which may be
defective or inconsistent with any other provision herein, or to make any other provisions
with respect to matters or questions arising under this Indenture, provided that such
action pursuant to this Clause (10) shall not adversely affect the interests of the Holders
of Securities of any series in any material respect; or

     (11) to supplement any of the provisions of the Indenture to such extent as shall be
necessary to permit or facilitate the defeasance and discharge of any series of Securities
pursuant to Articles Four and Thirteen, provided that any such action shall not adversely
affect the interests of the Holders of Securities of such series or any other series of
Securities in any material respect.

SECTION 902. Supplemental Indentures With Consent of Holders.

     With the consent of the Holders of a majority in principal amount of the Outstanding
Securities of each series affected by such supplemental indenture, by Act of said Holders delivered
to the Company and the Trustee, the Company, when authorized by a Board Resolution, and the Trustee
may enter into an indenture or indentures supplemental hereto for the purpose of adding any
provisions to or changing in any manner or eliminating any of the provisions of this Indenture or
of modifying in any manner the rights of the Holders of Securities of such series under this
Indenture; provided, however, that no such supplemental indenture shall, without the consent of the
Holder of each Outstanding Security affected thereby,

     (1) change the Stated Maturity of the principal of, or any installment of principal of
or interest on, any Security, or reduce the principal amount thereof or the rate of
interest thereon or any premium payable upon the redemption thereof, or reduce the amount
of the principal of an Original Issue Discount Security or any other Security which would
be due and payable upon a declaration of acceleration of the Maturity thereof pursuant to
Section 502, or change any Place of Payment where, or the coin or currency in which, any
Security or any premium or interest thereon is payable, or impair the right to institute
suit for the enforcement of any such payment on or after the Stated Maturity thereof (or,
in the case of redemption, on or after the Redemption Date), or modify the provisions of
this Indenture with respect to the subordination of the Securities in a manner adverse to
the Holders, or

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

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     (3) modify any of the provisions of this Section, Section 513 or Section 1006, except
to increase any such percentage or to provide that certain other provisions of this
Indenture cannot be modified or waived without the consent of the Holder of each
Outstanding Security affected thereby; provided, however, that this clause shall not be
deemed to require the consent of any Holder with respect to changes in the references to
“the Trustee” and concomitant changes in this Section and Section 1006, or the deletion of
this proviso, in accordance with the requirements of Sections 611 and 901(8), or

     (4) if applicable, make any change that adversely affects the right to convert any
Security as provided in Article Fourteen or pursuant to Section 301 (except as permitted by
Section 901(9)) or decrease the conversion rate or increase the conversion price of any
such Security.

A supplemental indenture which changes or eliminates any covenant or other provision of this
Indenture which has expressly been included solely for the benefit of one or more particular series
of Securities, or which modifies the rights of the Holders of Securities of such series with
respect to such covenant or other provision, shall be deemed not to affect the rights under this
Indenture of the Holders of Securities of any other series.

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

SECTION 903. Execution of Supplemental Indentures.

     In executing, or accepting the additional trusts created by, any supplemental indenture
permitted by this Article or the modifications thereby of the trusts created by this Indenture, the
Trustee shall be entitled to receive, and (subject to Sections 601 and 603) shall be fully
protected in relying upon, an Opinion of Counsel and an Officers’ Certificate stating that the
execution of such supplemental indenture is authorized or permitted by this Indenture. The Trustee
may, but shall not be obligated to, enter into any such supplemental indenture which affects the
Trustee’s own rights, duties or immunities under this Indenture or otherwise.

SECTION 904. Effect of Supplemental Indentures.

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

SECTION 905. Conformity with Trust Indenture Act.

     Every
amendment or supplement to this Indenture or the Securities  executed pursuant to this Article shall conform to the
requirements of the Trust Indenture Act as is then in effect so long as the Indenture and Securities are subject to the Trust Indenture Act.

SECTION 906. Reference in Securities to Supplemental Indentures.

     Securities of any series authenticated and delivered after the execution of any supplemental
indenture pursuant to this Article may, and shall if required by the Trustee, bear a

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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 of any series so modified as to
conform, in the opinion of the Trustee and the Company, to any such supplemental indenture may be
prepared and executed by the Company and authenticated and delivered by the Trustee in exchange for
Outstanding Securities of such series.

SECTION 907. Subordination Unimpaired.

          No provision in any supplemental indenture which affects the superior position of the holders
of Senior Debt shall be effective against holders of Senior Debt.

ARTICLE TEN

Covenants

SECTION 1001. Payment of Principal, Premium and Interest.

     The Company covenants and agrees for the benefit of each series of Securities that it will
duly and punctually pay the principal of and any premium and interest on the Securities of that
series in accordance with the terms of the Securities and this Indenture.

SECTION 1002. Maintenance of Office or Agency.

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

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

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SECTION 1003. Money for Securities Payments to Be Held in Trust.

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

     Whenever the Company shall have one or more Paying Agents for any series of Securities, it
will, prior to each due date of the principal of or any premium or interest on any Securities of
that series, deposit with a Paying Agent a sum sufficient to pay such amount, such sum to be held
as provided by the Trust Indenture Act, and (unless such Paying Agent is the Trustee) the Company
will promptly notify the Trustee of its action or failure so to act.

     The Company will cause each Paying Agent for any series of Securities other than the Trustee
to execute and deliver to the Trustee an instrument in which such Paying Agent shall agree with the
Trustee, subject to the provisions of this Section, that such Paying Agent will (1) comply with the
provisions of the Trust Indenture Act applicable to it as a Paying Agent and (2) during the
continuance of any default by the Company (or any other obligor upon the Securities of that series)
in the making of any payment in respect of the Securities of that series, upon the written request
of the Trustee, forthwith pay to the Trustee all sums held in trust by such Paying Agent for
payment in respect of the Securities of that series.

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

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

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SECTION 1004. Statement by Officers as to Default.

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

SECTION 1005. Existence.

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

SECTION 1006. Waiver of Certain Covenants.

     Except as otherwise specified as contemplated by Section 301 for Securities of such series,
the Company may, with respect to the Securities of any series, omit in any particular instance to
comply with any term, provision or condition set forth in any covenant provided pursuant to Section
301(19), 901(2) or 901(7) for the benefit of the Holders of such series if before the time for such
compliance the Holders of at least a majority in principal amount of the Outstanding Securities of
such series shall, by Act of such Holders, either waive such compliance in such instance or
generally waive compliance with such term, provision or condition, but no such waiver shall extend
to or affect such term, provision or condition except to the extent so expressly waived, and, until
such waiver shall become effective, the obligations of the Company and the duties of the Trustee in
respect of any such term, provision or condition shall remain in full force and effect.

SECTION 1007. 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
1008. 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.

ARTICLE ELEVEN

Redemption of Securities

SECTION 1101. Applicability of Article.

     Securities of any series which are redeemable before their Stated Maturity shall be redeemable
in accordance with their terms and (except as otherwise specified as contemplated by Section 301
for such Securities) in accordance with this Article.

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SECTION 1102. Election to Redeem; Notice to Trustee.

     The election of the Company to redeem any Securities shall be evidenced by a Board Resolution
or in another manner specified as contemplated by Section 301 for such Securities. In case of any
redemption at the election of the Company of less than all the Securities of any series (including
any such redemption affecting only a single Security), the Company shall, at least 60 days prior to
the Redemption Date fixed by the Company (unless a shorter notice shall be satisfactory to the
Trustee), notify the Trustee of such Redemption Date, of the principal amount of Securities of such
series to be redeemed and, if applicable, of the tenor of the Securities to be redeemed. In the
case of any redemption of Securities prior to the expiration of any restriction on such redemption
provided in the terms of such Securities or elsewhere in this Indenture, the Company shall furnish
the Trustee with an Officers’ Certificate evidencing compliance with such restriction.

SECTION 1103. Selection by Trustee of Securities to Be Redeemed.

     If less than all the Securities of any series are to be redeemed (unless all the Securities of
such series and of a specified tenor are to be redeemed or unless such redemption affects only a
single Security), the particular Securities to be redeemed shall be selected not more than 60 days
prior to the Redemption Date by the Trustee, from the Outstanding Securities of such series not
previously called for redemption, by such method as the Trustee shall deem fair and appropriate and
which may provide for the selection for redemption of a portion of the principal amount of any
Security of such series, provided that the unredeemed portion of the principal amount of any
Security shall be in an authorized denomination (which shall not be less than the minimum
authorized denomination) for such Security. If less than all the Securities of such series and of a
specified tenor are to be redeemed (unless such redemption affects only a single Security), the
particular Securities to be redeemed shall be selected not more than 60 days prior to the
Redemption Date by the Trustee, from the Outstanding Securities of such series and specified tenor
not previously called for redemption in accordance with the preceding sentence.

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

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

     The provisions of the two preceding paragraphs shall not apply with respect to any redemption
affecting only a single Security, whether such Security is to be redeemed in whole or in part. In
the case of any such redemption in part, the unredeemed portion of the principal amount of the
Security shall be in an authorized denomination (which shall not be less than the minimum
authorized denomination) for such Security.

     For all purposes of this Indenture, unless the context otherwise requires, all provisions
relating to the redemption of Securities shall relate, in the case of any Securities redeemed or to

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be redeemed only in part, to the portion of the principal amount of such Securities which has
been or is to be redeemed.

SECTION 1104. Notice of Redemption.

     Notice of redemption shall be given by first-class mail, postage prepaid, mailed not less than
30 nor more than 60 days prior to the Redemption Date, to each Holder of Securities to be redeemed,
at its address appearing in the Security Register.

     All notices of redemption shall identify the Securities to be redeemed (including the CUSIP
Numbers) and state:

     (1) the Redemption Date,

     (2) the Redemption Price (including accrued interest, if any),

     (3) if less than all the Outstanding Securities of any series consisting of more than
a single Security are to be redeemed, the identification (and, in the case of partial
redemption of any such Securities, the principal amounts) of the particular Securities to
be redeemed and, if less than all the Outstanding Securities of any series consisting of a
single Security are to be redeemed, the principal amount of the particular Security to be
redeemed,

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

     (5) the place or places where each such Security is to be surrendered for payment of
the Redemption Price,

     (6) if applicable, the conversion price, that the date on which the right to convert
the principal of the Securities or the portions thereof to be redeemed will terminate will
be the Redemption Date and the place or places where such Securities may be surrendered for
conversion, and

     (7) that the redemption is for a sinking fund, if such is the case.

     Notice of redemption of Securities to be redeemed at the election of the Company shall be
given by the Company or, at the Company’s request, by the Trustee in the name and at the expense of
the Company and shall be irrevocable.

SECTION 1105. Deposit of Redemption Price.

     Prior to 10:00 a.m. New York City time on any Redemption Date, the Company shall deposit with
the Trustee or with a Paying Agent (or, if the Company is acting as its own Paying Agent, segregate
and hold in trust as provided in Section 1003) an amount of money sufficient to pay the Redemption
Price of, and (except if the Redemption Date shall be an Interest Payment Date) accrued interest
on, all the Securities which are to be redeemed on that date.

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     If any Security called for redemption is converted, any money deposited with the Trustee or
with a Paying Agent or so segregated and held in trust for the redemption of such Security shall
(subject to the right of any Holder of such Security to receive interest as provided in the last
paragraph of Section 307) be paid to the Company on Company Request, or if then held by the
Company, shall be discharged from such trust.

SECTION 1106. Securities Payable on Redemption Date.

     Notice of redemption having been given as aforesaid, the Securities so to be redeemed shall,
on the Redemption Date, become due and payable at the Redemption Price therein specified, and from
and after such date (unless the Company shall default in the payment of the Redemption Price and
accrued interest) such Securities shall cease to bear interest. Upon surrender of any such Security
for redemption in accordance with said notice, such Security shall be paid by the Company at the
Redemption Price, together with accrued interest to the Redemption Date; provided, however, that,
unless otherwise specified as contemplated by Section 301, installments of interest whose Stated
Maturity is on or prior to the Redemption Date will be payable to the Holders of such Securities,
or one or more Predecessor Securities, registered as such at the close of business on the relevant
Record Dates according to their terms and the provisions of Section 307.

     If any Security called for redemption shall not be so paid upon surrender thereof for
redemption, the principal and any premium shall, until paid, bear interest from the Redemption Date
at the rate prescribed therefor in the Security.

SECTION 1107. Securities Redeemed in Part.

     Any Security which is to be redeemed only in part shall be surrendered at a Place of Payment
therefor (with, if the Company or the Trustee so requires, due endorsement by, or a written
instrument of transfer in form satisfactory to the Company and the Trustee duly executed by, the
Holder thereof or its attorney duly authorized in writing), and the Company shall execute, and the
Trustee shall authenticate and deliver to the Holder of such Security without service charge, a new
Security or Securities of the same series and of like tenor, of any authorized denomination as
requested by such Holder, in aggregate principal amount equal to and in exchange for the unredeemed
portion of the principal of the Security so surrendered.

ARTICLE TWELVE

Sinking Funds

SECTION 1201. Applicability of Article.

     The provisions of this Article shall be applicable to any sinking fund for the retirement of
Securities of any series except as otherwise specified as contemplated by Section 301 for such
Securities.

     The minimum amount of any sinking fund payment provided for by the terms of any Securities is
herein referred to as a “mandatory sinking fund payment”, and any payment in

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excess of such minimum amount provided for by the terms of such Securities is herein referred
to as an “optional sinking fund payment”. If provided for by the terms of any Securities, the cash
amount of any sinking fund payment may be subject to reduction as provided in Section 1202. Each
sinking fund payment shall be applied to the redemption of Securities as provided for by the terms
of such Securities.

SECTION 1202. Satisfaction of Sinking Fund Payments with Securities.

     The Company (1) may deliver Outstanding Securities of a series (other than any previously
called for redemption) and (2) may apply as a credit Securities of a series which have been
redeemed either at the election of the Company pursuant to the terms of such Securities or through
the application of permitted optional sinking fund payments pursuant to the terms of such
Securities, in each case in satisfaction of all or any part of any sinking fund payment with
respect to any Securities of such series required to be made pursuant to the terms of such
Securities as and to the extent provided for by the terms of such Securities; provided that the
Securities to be so credited have not been previously so credited. The Securities to be so credited
shall be received and credited for such purpose by the Trustee at the Redemption Price, as
specified in the Securities so to be redeemed, for redemption through operation of the sinking fund
and the amount of such sinking fund payment shall be reduced accordingly.

SECTION 1203. Redemption of Securities for Sinking Fund.

     Not less than 60 days prior to each sinking fund payment date for any Securities, the Company
will deliver to the Trustee an Officers’ Certificate specifying the amount of the next ensuing
sinking fund payment for such Securities pursuant to the terms of such Securities, the portion
thereof, if any, which is to be satisfied by payment of cash and the portion thereof, if any, which
is to be satisfied by delivering and crediting Securities pursuant to Section 1202 and will also
deliver to the Trustee any Securities to be so delivered. Not less than 30 days prior to each such
sinking fund payment date, the Trustee shall select the Securities to be redeemed upon such sinking
fund payment date in the manner specified in Section 1103 and cause notice of the redemption
thereof to be given in the name of and at the expense of the Company in the manner provided in
Section 1104. Such notice having been duly given, the redemption of such Securities shall be made
upon the terms and in the manner stated in Sections 1106 and 1107.

ARTICLE THIRTEEN

Defeasance and Covenant Defeasance

SECTION 1301. Company’s Option to Effect Defeasance or Covenant Defeasance.

     The Company may elect, at its option at any time, to have Section 1302 or Section 1303 applied
to any Securities or any series of Securities, as the case may be, designated pursuant to Section
301 as being defeasible pursuant to such Section 1302 or 1303, in accordance with any applicable
requirements provided pursuant to Section 301 and upon compliance with the conditions set forth
below in this Article. Any such election shall be evidenced by a Board Resolution or in another
manner specified as contemplated by Section 301 for such Securities.

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SECTION 1302. Defeasance and Discharge.

     Upon the Company’s exercise of its option (if any) to have this Section applied to any
Securities or any series of Securities, as the case may be, the Company shall be deemed to have
been discharged from its obligations, and the provisions of Article Fifteen shall cease to be
effective, with respect to such Securities as provided in this Section on and after the date the
conditions set forth in Section 1304 are satisfied (hereinafter called “Defeasance”). For this
purpose, such Defeasance means that the Company shall be deemed to have paid and discharged the
entire indebtedness represented by such Securities and to have satisfied all its other obligations
under such Securities and this Indenture insofar as such Securities are concerned (and the Trustee,
at the expense of the Company, shall execute proper instruments acknowledging the same), subject to
the following which shall survive until otherwise terminated or discharged hereunder: (1) the
rights of Holders of such Securities to receive, solely from the trust fund described in Section
1304 and as more fully set forth in such Section, payments in respect of the principal of and any
premium and interest on such Securities when payments are due, (2) the Company’s obligations with
respect to such Securities under Sections 304, 305, 306, 1002 and 1003, (3) the rights, powers,
trusts, duties and immunities of the Trustee hereunder and (4) this Article. Subject to compliance
with this Article, the Company may exercise its option (if any) to have this Section applied to any
Securities notwithstanding the prior exercise of its option (if any) to have Section 1303 applied
to such Securities.

SECTION 1303. Covenant Defeasance.

     Upon the Company’s exercise of its option (if any) to have this Section applied to any
Securities or any series of Securities, as the case may be, (1) the Company shall be released from
its obligations under Section 801(3) and any covenants provided pursuant to Section 301(19), 901(2)
or 901(7) for the benefit of the Holders of such Securities and (2) the occurrence of any event
specified in Sections 501(4) (with respect to any of Section 801(3) and any such covenants provided
pursuant to Section 301(19), 901(2) or 901(7)) shall be deemed not to be or result in an Event of
Default, in each case with respect to such Securities as provided in this Section on and after the
date the conditions set forth in Section 1304 are satisfied (hereinafter called “Covenant
Defeasance”). For this purpose, such Covenant Defeasance means that, with respect to such
Securities, the Company may omit to comply with and shall have no liability in respect of any term,
condition or limitation set forth in any such specified Section (to the extent so specified in the
case of Section 501(4)), whether directly or indirectly by reason of any reference elsewhere herein
to any such Section or by reason of any reference in any such Section to any other provision herein
or in any other document, but the remainder of this Indenture and such Securities shall be
unaffected thereby.

SECTION 1304. Conditions to Defeasance or Covenant Defeasance.

     The following shall be the conditions to the application of Section 1302 or Section 1303 to
any Securities or any series of Securities, as the case may be:

     (1) The Company shall irrevocably have deposited or caused to be deposited with the
Trustee (or another trustee which satisfies the requirements contemplated by Section 609
and agrees to comply with the provisions of this Article applicable to it) as trust funds
in trust for the purpose of making the following payments, specifically pledged as security
for, and dedicated solely to, the benefits of the Holders of such

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Securities, (A) money in an amount, or (B) U.S. Government Obligations which through
the scheduled payment of principal and interest in respect thereof in accordance with their
terms will provide, not later than one day before the due date of any payment, money in an
amount, or (C) a combination thereof, in each case sufficient, in the opinion of a
nationally recognized firm of independent public accountants expressed in a written
certification thereof delivered to the Trustee, to pay and discharge, and which shall be
applied by the Trustee (or any such other qualifying trustee) to pay and discharge, the
principal of and any premium and interest on such Securities on the respective Stated
Maturities, in accordance with the terms of this Indenture and such Securities. As used
herein, “U.S. Government Obligation” means (x) any security which is (i) a direct
obligation of the United States of America for the payment of which the full faith and
credit of the United States of America is pledged or (ii) an obligation of a Person
controlled or supervised by and acting as an agency or instrumentality of the United States
of America the payment of which is unconditionally guaranteed as a full faith and credit
obligation by the United States of America, which, in either case (i) or (ii), is not
callable or redeemable at the option of the issuer thereof, and (y) any depositary receipt
issued by a bank (as defined in Section 3(a)(2) of the Securities Act) as custodian with
respect to any U.S. Government Obligation which is specified in Clause (x) above and held
by such bank for the account of the holder of such depositary receipt, or with respect to
any specific payment of principal of or interest on any U.S. Government Obligation which is
so specified and held, provided that (except as required by law) such custodian is not
authorized to make any deduction from the amount payable to the holder of such depositary
receipt from any amount received by the custodian in respect of the U.S. Government
Obligation or the specific payment of principal or interest evidenced by such depositary
receipt.

     (2) In the event of an election to have Section 1302 apply to any Securities or any
series of Securities, as the case may be, the Company shall have delivered to the Trustee
an Opinion of Counsel stating that (A) the Company has received from, or there has been
published by, the Internal Revenue Service a ruling or (B) since the date of this
instrument, there has been a change in the applicable Federal income tax law, in either
case (A) or (B) to the effect that, and based thereon such opinion shall confirm that, the
Holders of such Securities will not recognize gain or loss for Federal income tax purposes
as a result of the deposit, Defeasance and discharge to be effected with respect to such
Securities and will be subject to Federal income tax on the same amount, in the same manner
and at the same times as would be the case if such deposit, Defeasance and discharge were
not to occur.

     (3) In the event of an election to have Section 1303 apply to any Securities or any
series of Securities, as the case may be, the Company shall have delivered to the Trustee
an Opinion of Counsel to the effect that the Holders of such Securities will not recognize
gain or loss for Federal income tax purposes as a result of the deposit and Covenant
Defeasance to be effected with respect to such Securities and will be subject to Federal
income tax on the same amount, in the same manner and at the same times as would be the
case if such deposit and Covenant Defeasance were not to occur.

     (4) The Company shall have delivered to the Trustee an Officers’ Certificate to the
effect that neither such Securities nor any other Securities of the same series, if then
listed on any securities exchange, will be delisted as a result of such deposit.

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     (5) No event which is, or after notice or lapse of time or both would become, an Event
of Default with respect to such Securities or any other Securities shall have occurred and
be continuing at the time of such deposit or, with regard to any such event specified in
Sections 501(6) and (7), at any time on or prior to the 90th day after the date of such
deposit (it being understood that this condition shall not be deemed satisfied until after
such 90th day).

     (6) Such Defeasance or Covenant Defeasance shall not cause the Trustee to have a
conflicting interest within the meaning of the Trust Indenture Act (assuming all Securities
are in default within the meaning of such Act).

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

     (8) Such Defeasance or Covenant Defeasance shall not result in the trust arising from
such deposit constituting an investment company within the meaning of the Investment
Company Act unless such trust shall be registered under such Act or exempt from
registration thereunder.

     (9) At the time of such deposit, (A) no default in the payment of any principal of or
premium or interest on any Senior Debt shall have occurred and be continuing, (B) no event of
default with respect to any Senior Debt shall have resulted in such Senior Debt becoming, and
continuing to be, due and payable prior to the date on which it would otherwise have become due
and payable (unless payment of such Senior Debt has been made or duly provided for), and (C) no
other event of default with respect to any Senior Debt shall have occurred and be continuing
permitting (after notice or lapse of time or both) the holders of such Senior Debt (or a
trustee on behalf of such holders) to declare such Senior Debt due and payable prior to the
date on which it would otherwise have become due and payable.

     (10) The Company shall have delivered to the Trustee an Officers’ Certificate and an
Opinion of Counsel, each stating that all conditions precedent with respect to such
Defeasance or Covenant Defeasance have been complied with.

SECTION 1305. Deposited Money and U.S. Government Obligations to Be Held in Trust; Miscellaneous
Provisions.

     Subject to the provisions of the last paragraph of Section 1003, all money and U.S. Government
Obligations (including the proceeds thereof) deposited with the Trustee or other qualifying trustee
(solely for purposes of this Section and Section 1306, the Trustee and any such other trustee are
referred to collectively as the “Trustee”) pursuant to Section 1304 in respect of any Securities
shall be held in trust and applied by the Trustee, in accordance with the provisions of such
Securities and this Indenture, to the payment, either directly or through any such Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may determine, to the Holders
of such Securities, of all sums due and to become due thereon in respect of principal and any
premium and interest, but money so held in trust need not be segregated from other funds except to
the extent required by law. Money and U.S. Government Obligations so held in trust shall not be
subject to the provisions of Article Fifteen.

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     The Company shall pay and indemnify the Trustee against any tax, fee or other charge imposed
on or assessed against the U.S. Government Obligations deposited pursuant to Section 1304 or the
principal and interest received in respect thereof other than any such tax, fee or other charge
which by law is for the account of the Holders of Outstanding Securities.

     Anything in this Article to the contrary notwithstanding, the Trustee shall deliver or pay to
the Company from time to time upon Company Request any money or U.S. Government Obligations held by
it as provided in Section 1304 with respect to any Securities which, in the opinion of a nationally
recognized firm of independent public accountants expressed in a written certification thereof
delivered to the Trustee, are in excess of the amount thereof which would then be required to be
deposited to effect the Defeasance or Covenant Defeasance, as the case may be, with respect to such
Securities.

SECTION 1306. Reinstatement.

     If the Trustee or the Paying Agent is unable to apply any money in accordance with this
Article with respect to any Securities by reason of any order or judgment of any court or
governmental authority enjoining, restraining or otherwise prohibiting such application, then the
obligations under this Indenture and such Securities from which the Company has been discharged or
released pursuant to Section 1302 or 1303 shall be revived and reinstated as though no deposit had
occurred pursuant to this Article with respect to such Securities, until such time as the Trustee
or Paying Agent is permitted to apply all money held in trust pursuant to Section 1305 with respect
to such Securities in accordance with this Article; provided, however, that if the Company makes
any payment of principal of or any premium or interest on any such Security following such
reinstatement of its obligations, the Company shall be subrogated to the rights (if any) of the
Holders of such Securities to receive such payment from the money so held in trust.

ARTICLE FOURTEEN

Conversion of Securities

SECTION 1401. Applicability of Article.

     The provisions of this Article shall be applicable to the Securities of any series which are
convertible into shares of Common Stock of the Company, and the issuance of such shares of Common
Stock upon the conversion of such Securities, except as otherwise specified as contemplated by
Section 301 for the Securities of such series.

SECTION 1402. Exercise of Conversion Privilege.

     In order to exercise a conversion privilege, the Holder of a Security of a series with such a
privilege shall surrender such Security to the Company at the office or agency maintained for that
purpose pursuant to Section 1002, accompanied by a duly executed conversion notice to the Company
substantially in the form set forth in Section 206 stating that the Holder elects to convert such
Security or a specified portion thereof. Such notice shall also state, if different from the name
and address of such Holder, the name or names (with address) in which the certificate or
certificates for shares of Common Stock which shall be issuable on such conversion shall be

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issued. Securities surrendered for conversion shall (if so required by the Company or the
Trustee) be duly endorsed by or accompanied by instruments of transfer in forms satisfactory to the
Company and the Trustee duly executed by the registered Holder or its attorney duly authorized in
writing; and Securities so surrendered for conversion (in whole or in part) during the period from
the close of business on any Regular Record Date to the opening of business on the next succeeding
Interest Payment Date (excluding Securities or portions thereof called for redemption during such
period) shall also be accompanied by payment in funds acceptable to the Company of an amount equal
to the interest payable on such Interest Payment Date on the principal amount of such Security then
being converted, and such interest shall be payable to such registered Holder notwithstanding the
conversion of such Security, subject to the provisions of Section 307 relating to the payment of
Defaulted Interest by the Company. As promptly as practicable after the receipt of such notice and
of any payment required pursuant to a Board Resolution and, subject to Section 303, set forth, or
determined in the manner provided, in an Officers’ Certificate, or established in one or more
indentures supplemental hereto setting forth the terms of such series of Security, and the
surrender of such Security in accordance with such reasonable regulations as the Company may
prescribe, the Company shall issue and shall deliver, at the office or agency at which such
Security is surrendered, to such Holder or on its written order, a certificate or certificates for
the number of full shares of Common Stock issuable upon the conversion of such Security (or
specified portion thereof), in accordance with the provisions of such Board Resolution, Officers’
Certificate or supplemental indenture, and cash as provided therein in respect of any fractional
share of such Common Stock otherwise issuable upon such conversion. Such conversion shall be deemed
to have been effected immediately prior to the close of business on the date on which such notice
and such payment, if required, shall have been received in proper order for conversion by the
Company and such Security shall have been surrendered as aforesaid (unless such Holder shall have
so surrendered such Security and shall have instructed the Company to effect the conversion on a
particular date following such surrender and such Holder shall be entitled to convert such Security
on such date, in which case such conversion shall be deemed to be effected immediately prior to the
close of business on such date) and at such time the rights of the Holder of such Security as such
Security Holder shall cease and the person or persons in whose name or names any certificate or
certificates for shares of Common Stock of the Company shall be issuable upon such conversion shall
be deemed to have become the Holder or Holders of record of the shares represented thereby. Except
as set forth above and subject to the final paragraph of Section 307, no payment or adjustment
shall be made upon any conversion on account of any interest accrued on the Securities (or any part
thereof) surrendered for conversion or on account of any dividends on the Common Stock of the
Company issued upon such conversion.

     In the case of any Security which is converted in part only, upon such conversion the Company
shall execute and the Trustee shall authenticate and deliver to or on the order of the Holder
thereof, at the expense of the Company, a new Security or Securities of the same series, of
authorized denominations, in aggregate principal amount equal to the unconverted portion of such
Security.

SECTION 1403. No Fractional Shares.

     No fractional share of Common Stock of the Company shall be issued upon conversions of
Securities of any series. If more than one Security shall be surrendered for conversion at one time
by the same Holder, the number of full shares which shall be issuable upon conversion shall be
computed on the basis of the aggregate principal amount of the Securities (or specified

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portions thereof to the extent permitted hereby) so surrendered. If, except for the provisions
of this Section 1403, any Holder of a Security or Securities would be entitled to a fractional
share of Common Stock of the Company upon the conversion of such Security or Securities, or
specified portions thereof, the Company shall pay to such Holder an amount in cash equal to the
current market value of such fractional share computed, (i) if such Common Stock is listed or
admitted to unlisted trading privileges on a national securities exchange, on the basis of the last
reported sale price regular way on such exchange on the last trading day prior to the date of
conversion upon which such a sale shall have been effected, or (ii) if such Common Stock is not at
the time so listed or admitted to unlisted trading privileges on a national securities exchange, on
the basis of the average of the bid and asked prices of such Common Stock in the over-the-counter
market, on the last trading day prior to the date of conversion, as reported by the National
Quotation Bureau, Incorporated or similar organization if the National Quotation Bureau,
Incorporated is no longer reporting such information, or if not so available, the fair market price
as determined by the Board of Directors. For purposes of this Section, “trading day” shall mean
each Monday, Tuesday, Wednesday, Thursday and Friday other than any day on which the Common Stock
is not traded on the Nasdaq National Market System, or if the Common Stock is not traded on the
Nasdaq National Market System, on the principal exchange or market on which the Common Stock is
traded or quoted.

SECTION 1404. Adjustment of Conversion Price.

     The conversion price of Securities of any series that is convertible into Common Stock of the
Company shall be adjusted for any stock dividends, stock splits, reclassifications, combinations or
similar transactions in accordance with the terms of the supplemental indenture or Board
Resolutions setting forth the terms of the Securities of such series.

     Whenever the conversion price is adjusted, the Company shall compute the adjusted conversion
price in accordance with terms of the applicable Board Resolution or supplemental indenture and
shall prepare an Officers’ Certificate setting forth the adjusted conversion price and showing in
reasonable detail the facts upon which such adjustment is based, and such certificate shall
forthwith be filed at each office or agency maintained for the purpose of conversion of Securities
pursuant to Section 1002 and, if different, with the Trustee. The Company shall forthwith cause a
notice setting forth the adjusted conversion price to be mailed, first class postage prepaid, to
each Holder of Securities of such series at its address appearing on the Security Register and to
any conversion agent other than the Trustee.

SECTION 1405. Notice of Certain Corporate Actions.

     In case:

     (1) the Company shall declare a dividend (or any other distribution) on its Common
Stock payable otherwise than in cash out of its retained earnings (other than a dividend
for which approval of any shareholders of the Company is required); or

     (2) the Company shall authorize the granting to the holders of its Common Stock of
rights, options or warrants to subscribe for or purchase any shares of capital stock of any
class or of any other rights (other than any such grant for which approval of any
shareholders of the Company is required); or

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

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

then the Company shall cause to be filed with the Trustee, and shall cause to be mailed to all
Holders at their last addresses as they shall appear in the Securities Register, at least 20 days
(or 10 days in any case specified in Clause (1) or (2) above) prior to the applicable record date
hereinafter specified, a notice stating (i) the date on which a record is to be taken for the
purpose of such dividend, distribution, rights, options or warrants, or, if a record is not to be
taken, the date as of which the holders of Common Stock of record to be entitled to such dividend,
distribution, rights, options or warrants are to be determined, or (ii) the date on which such
reclassification, consolidation, merger, share exchange, sale, dissolution, liquidation or winding
up is expected to become effective, and the date as of which it is expected that holders of Common
Stock of record shall be entitled to exchange their shares of Common Stock for securities, cash or
other property deliverable upon such reclassification, consolidation, merger, share exchange, sale,
dissolution, liquidation or winding up. If at any time the Trustee shall not be the conversion
agent, a copy of such notice shall also forthwith be filed by the Company with the Trustee.

SECTION 1406. Reservation of Shares of Common Stock.

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

SECTION 1407. Payment of Certain Taxes Upon Conversion.

     The Company will pay any and all taxes that may be payable in respect of the issue or delivery
of shares of its 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 its 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 1408. Nonassessability.

     The Company covenants that all shares of its Common Stock which may be issued upon conversion
of Securities will upon issue in accordance with the terms hereof be duly and validly issued and
fully paid and nonassessable.

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SECTION 1409. Effect of Consolidation or Merger on Conversion Privilege.

     In case of any consolidation of the Company with, or merger of the Company into or with any
other Person, or in case of any sale of all or substantially all of the assets of the Company, the
Company or the Person formed by such consolidation or the Person into which the Company shall have
been merged or the Person which shall have acquired such assets, as the case may be, shall execute
and deliver to the Trustee a supplemental indenture providing that the Holder of each Security then
outstanding of any series that is convertible into Common Stock of the Company shall have the
right, which right shall be the exclusive conversion right thereafter available to said Holder
(until the expiration of the conversion right of such Security), to convert such Security into the
kind and amount of shares of stock or other securities or property (including cash) receivable upon
such consolidation, merger or sale by a holder of the number of shares of Common Stock of the
Company into which such Security might have been converted immediately prior to such consolidation,
merger or sale, subject to compliance with the other provisions of this Indenture, such Security
and such supplemental indenture. Such supplemental indenture shall provide for adjustments which
shall be as nearly equivalent as may be practicable to the adjustments provided for in such
Security. The above provisions of this Section shall similarly apply to successive consolidations,
mergers or sales. It is expressly agreed and understood that anything in this Indenture to the
contrary notwithstanding, if, pursuant to such merger, consolidation or sale, holders of
outstanding shares of Common Stock of the Company do not receive shares of common stock of the
surviving corporation but receive other securities, cash or other property or any combination
thereof, Holders of Securities shall not have the right to thereafter convert their Securities into
common stock of the surviving corporation or the corporation which shall have acquired such assets,
but rather, shall have the right upon such conversion to receive the other securities, cash or
other property receivable by a holder of the number of shares of Common Stock of the Company into
which the Securities held by such holder might have been converted immediately prior to such
consolidation, merger or sale, all as more fully provided in the first sentence of this Section
1409. Anything in this Section 1409 to the contrary notwithstanding, the provisions of this Section
1409 shall not apply to a merger or consolidation of another corporation with or into the Company
pursuant to which both of the following conditions are applicable: (i) the Company is the surviving
corporation and (ii) the outstanding shares of Common Stock of the Company are not changed or
converted into any other securities or property (including cash) or changed in number or character
or reclassified pursuant to the terms of such merger or consolidation.

     As evidence of the kind and amount of shares of stock or other securities or property
(including cash) into which Securities may properly be convertible after any such consolidation,
merger or sale, or as to the appropriate adjustments of the conversion prices applicable with
respect thereto, the Trustee shall be furnished with and may accept the certificate or opinion of
an independent certified public accountant with respect thereto; and, in the absence of bad faith
on the part of the Trustee, the Trustee may conclusively rely thereon, and shall not be responsible
or accountable to any Holder of Securities for any provision in conformity therewith or approved by
such independent certified accountant which may be contained in said supplemental indenture.

SECTION 1410. Duties of Trustee Regarding Conversion.

     Neither the Trustee nor any conversion agent shall at any time be under any duty or
responsibility to any Holder of Securities of any series that is convertible into Common Stock of
the Company to determine whether any facts exist which may require any adjustment of the

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conversion price, or with respect to the nature or extent of any such adjustment when made, or
with respect to the method employed, whether herein or in any supplemental indenture, any
resolutions of the Board of Directors or written instrument executed by one or more officers of the
Company provided to be employed in making the same. Neither the Trustee nor any conversion agent
shall be accountable with respect to the validity or value (or the kind or amount) of any shares of
Common Stock of the Company, or of any securities or property, which may at any time be issued or
delivered upon the conversion of any Securities and neither the Trustee nor any conversion agent
makes any representation with respect thereto. Subject to the provisions of Section 601, neither
the Trustee nor any conversion agent shall be responsible for any failure of the Company to issue,
transfer or deliver any shares of its Common Stock or stock certificates or other securities or
property upon the surrender of any Security for the purpose of conversion or to comply with any of
the covenants of the Company contained in this Article Fourteen or in the applicable supplemental
indenture, resolutions of the Board of Directors or written instrument executed by one or more duly
authorized officers of the Company.

SECTION 1411. Repayment of Certain Funds Upon Conversion.

     Any funds which at any time shall have been deposited by the Company or on its behalf with the
Trustee or any other paying agent for the purpose of paying the principal of, and premium, if any,
and interest, if any, on any of the Securities (including, but not limited to, funds deposited for
the sinking fund referred to in Article Twelve hereof and funds deposited pursuant to Article
Thirteen hereof) and which shall not be required for such purposes because of the conversion of
such Securities as provided in this Article Fourteen shall after such conversion be repaid to the
Company by the Trustee upon the Company’s written request.

ARTICLE FIFTEEN

Subordination of Securities

SECTION 1501. Securities Subordinate to Senior Debt.

          Except as otherwise provided in a supplemental indenture or pursuant to Section 301, the
Company covenants and agrees, and each Holder of a Security, by its acceptance thereof, likewise
covenants and agrees, that, to the extent and in the manner hereinafter set forth in this Article,
the indebtedness represented by the Securities and the payment of the principal of and any premium
and interest on each and all of the Securities are hereby expressly made subordinate and subject in
right of payment to the prior payment in full of all Senior Debt.

SECTION 1502. Payment Over of Proceeds Upon Dissolution, Etc.

          In the event of (a) any insolvency or bankruptcy case or proceeding, or any receivership,
liquidation, reorganization, debt restructuring or other similar case or proceeding in connection
therewith, relative to the Company or to its creditors, as such, or to its assets, or (b) any
liquidation, dissolution or other winding up of the Company, whether voluntary or

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involuntary and whether or not involving insolvency or bankruptcy, or (c) any assignment for
the benefit of creditors or any other marshalling of assets and liabilities of the Company, then
and in any such event the holders of Senior Debt shall be entitled to receive payment in full of
all amounts due or to become due on or in respect of all Senior Debt, or provision shall be made
for such payment in money or money’s worth, before the Holders of the Securities are entitled to
receive any payment on account of principal of or any premium or interest on the Securities, and to
that end the holders of Senior Debt or their representative or representatives or the trustee or
trustees under any indenture under which any instruments evidencing any of such Senior Debt may
have been issued shall be entitled to receive, for application to the payment thereof, any payment
or distribution of any kind or character, whether in cash, property or securities, which may be
payable or deliverable in respect of the Securities in any such case, proceeding, dissolution,
liquidation or other winding up or event, to the extent necessary to pay all Senior Debt in full,
after giving effect to any concurrent payment or distribution to or for the holders of Senior Debt.

          In the event that, notwithstanding the foregoing provisions of this Section, the Trustee or
the Holder of any Security shall have received any payment or distribution of assets of the Company
of any kind or character, whether in cash, property or securities, before all Senior Debt is paid
in full or payment thereof provided for, then and in such event such payment or distribution shall
be paid over or delivered forthwith to the trustee in bankruptcy, receiver, liquidating trustee,
custodian, assignee, agent or other Person making payment or distribution of assets of the Company
for application to the payment of all Senior Debt remaining unpaid, to the extent necessary to pay
all Senior Debt in full, after giving effect to any concurrent payment or distribution to or for
the holders of Senior Debt.

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

SECTION 1503. Prior Payment to Senior Debt Upon Acceleration of Securities.

          In the event that any Securities are accelerated upon an Event of Default and thereby become
due and payable before their Stated Maturity, then and in such event the holders of the Senior Debt
outstanding at the time such Securities so become due and payable shall be entitled to receive
payment in full of all amounts due or to become due on or in respect of all

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Senior Debt, or provision shall be made for such payment in money or money’s worth before the
Holders of the Securities are entitled to receive any payment by the Company on account of the
principal of or any premium or interest on the Securities or on account of the purchase or other
acquisition of Securities; provided, however, that nothing in this Section shall prevent the
satisfaction of any sinking fund payment in accordance with Article Twelve by delivering and
crediting pursuant to Section 1202 Securities which have been acquired (upon redemption or
otherwise) prior to such declaration of acceleration or which have been converted pursuant to
Article Fourteen.

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

          The provisions of this Section shall not apply to any payment with respect to which Section
1502 would be applicable.

SECTION 1504. No Payment When Senior Debt in Default.

     (a) In the event and during the continuation of any default in the payment of principal of or
any premium or interest on any Senior Debt during or beyond any applicable grace period with
respect thereto, or in the event that any default with respect to any Senior Debt shall have
occurred and be continuing permitting the holders of such Senior Debt (or a trustee on behalf of
the holders thereof) to declare such Senior Debt due and payable prior to the date on which it
would otherwise have become due and payable, unless and until such default shall have been cured or
waived or shall have ceased to exist and, if any such Senior Debt shall have been accelerated, such
acceleration shall have been rescinded or annulled, or (b) in the event any judicial proceeding
shall be pending with respect to any such default, then no payment shall be made by the Company on
account of principal of or any premium or interest on the Securities or on account of the purchase
or other acquisition of Securities; provided, however, that nothing in this Section shall prevent
the satisfaction of any sinking fund payment in accordance with Article Twelve by delivering and
crediting pursuant to Section 1202 Securities which have been acquired (upon redemption or
otherwise) prior to such declaration of acceleration or which have been converted pursuant to
Article Fourteen.

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

          The provisions of this Section shall not apply to any payment with respect to which Section
1502 would be applicable.

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SECTION 1505. Payment Permitted If No Default.

          Nothing contained in this Article or elsewhere in this Indenture or in any of the Securities
shall prevent (a) the Company, at any time except during the pendency of any case, proceeding,
dissolution, liquidation or other winding up, debt restructuring, assignment for the benefit of
creditors or other marshalling of assets and liabilities of the Company referred to in Section 1502
or under the conditions described in Section 1503 or 1504, from making payments at any time of
principal of and any premium or interest on the Securities, or (b) the application by the Trustee
of any money deposited with it hereunder to the payment of or on account of the principal of and
any premium or interest on the Securities or the retention of such payment by the Holders, if, at
the time of such application by the Trustee, it did not have knowledge that such payment would have
been prohibited by the provisions of this Article.

SECTION 1506. Subrogation to Rights of Holders of Senior Debt.

          Subject to the payment in full of all Senior Debt, the Holders of the Securities shall be
subrogated to the rights of the holders of such Senior Debt to receive payments and distributions
of cash, property and securities applicable to the Senior Debt until the principal of and any
premium and interest on the Securities shall be paid in full. For purposes of such subrogation, no
payments or distributions to the holders of the Senior Debt of any cash, property or securities to
which the Holders of the Securities or the Trustee would be entitled except for the provisions of
this Article, and no payments over pursuant to the provisions of this Article to the holders of
Senior Debt by Holders of the Securities or the Trustee, shall, as among the Company, its creditors
other than holders of Senior Debt and the Holders of the Securities, be deemed to be a payment or
distribution by the Company to or on account of the Senior Debt.

SECTION 1507. Provisions Solely to Define Relative Rights.

          The provisions of this Article are and are intended solely for the purpose of defining the
relative rights of the Holders of the Securities on the one hand and the holders of Senior Debt on
the other hand. Nothing contained in this Article or elsewhere in this Indenture or in the
Securities is intended to or shall (a) impair, as among the Company, its creditors other than
holders of Senior Debt and the Holders of the Securities, the obligation of the Company, which is
absolute and unconditional (and which, subject to the rights under this Article of the holders of
Senior Debt, is intended to rank equally with all other general obligations of the Company), to pay
to the Holders of the Securities the principal of and any premium and interest on the Securities as
and when the same shall become due and payable in accordance with their terms; or (b) affect the
relative rights against the Company of the Holders of the Securities and creditors of the Company
other than the holders of Senior Debt; or (c) prevent the Trustee or the Holder of any Security
from exercising all remedies otherwise permitted by applicable law upon default under this
Indenture, subject to the rights, if any, under this Article of the holders of Senior Debt to
receive cash, property and securities otherwise payable or deliverable to the Trustee or such
Holder.

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SECTION 1508. Trustee to Effectuate Subordination.

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

SECTION 1509. No Waiver of Subordination Provisions.

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

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

SECTION 1510. Notice to Trustee.

          The Company shall give prompt written notice to the Trustee of any fact known to the Company
which would prohibit the making of any payment to or by the Trustee in respect of the Securities.
Notwithstanding the provisions of this Article or any other provision of this Indenture, the
Trustee shall not be charged with knowledge of the existence of any facts which would prohibit the
making of any payment to or by the Trustee in respect of the Securities, unless and until the
Trustee shall have received written notice thereof from the Company or a holder of Senior Debt or
from any trustee therefor; and, prior to the receipt of any such written notice, the Trustee,
subject to the provisions of Section 601, shall be entitled in all respects to assume that no such
facts exist; provided, however, that if the Trustee shall not have received the notice provided for
in this Section at least two Business Days prior to the date upon which by the terms hereof any
money may become payable for any purpose (including, without limitation, the payment of the
principal of and any premium or interest on any Security), then, anything herein contained to the
contrary notwithstanding, the Trustee shall have full power and authority to receive such money and
to apply the same to the purpose for which such money was received and shall not be

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affected by any notice to the contrary which may be received by it within two Business Days
prior to such date.

          Subject to the provisions of Section 601, the Trustee shall be entitled to conclusively rely
on the delivery to it of a written notice by a Person representing himself to be a holder of Senior
Debt (or a trustee therefor) to establish that such notice has been given by a holder of Senior
Debt (or a trustee therefor). In the event that the Trustee determines in good faith that further
evidence is required with respect to the right of any Person as a holder of Senior Debt to
participate in any payment or distribution pursuant to this Article, 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, the extent to which such Person is entitled to participate in such
payment or distribution and any other facts pertinent to the rights of such Person under this
Article, 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 1511. Reliance on Judicial Order or Certificate of Liquidating Agent.

          Upon any payment or distribution of assets of the Company referred to in this Article, the
Trustee, subject to the provisions of Section 601, and the Holders of the Securities shall be
entitled to rely upon any order or decree entered by any court of competent jurisdiction in which
such insolvency, bankruptcy, receivership, liquidation, reorganization, dissolution, winding up or
similar case or proceeding is pending, or a certificate of the trustee in bankruptcy, receiver,
liquidating trustee, custodian, assignee for the benefit of creditors, agent or other Person making
such payment or distribution, delivered to the Trustee or to the Holders of Securities, for the
purpose of ascertaining the Persons entitled to participate in such payment or distribution, the
holders of the Senior 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 Article.

SECTION 1512. Trustee Not Fiduciary for Holders of Senior Debt.

          The Trustee, in its capacity as trustee under this Indenture, shall not be deemed to owe any
fiduciary duty to the holders of Senior Debt and shall not be liable to any such holders if it
shall in good faith mistakenly pay over or distribute to Holders of Securities or to the Company or
to any other Person cash, property or securities to which any holders of Senior Debt shall be
entitled by virtue of this Article or otherwise. With respect to the holders of Senior Debt, the
Trustee undertakes to perform or to observe only such of its covenants or obligations as are
specifically set forth in this Article and no implied covenants or obligations with respect to
holders of Senior Debt shall be read into this Indenture against the Trustee.

SECTION 1513. Rights of Trustee as Holder of Senior Debt; Preservation of Trustee’s Rights.

          The Trustee in its individual capacity 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

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extent as any other holder of Senior Debt, and nothing in this Indenture shall deprive the
Trustee of any of its rights as such holder.

          Nothing in this Article shall apply to claims of, or payments to, the Trustee under or
pursuant to Section 607.

SECTION 1514. Article Applicable to Paying Agents.

          In case at any time any Paying Agent other than the Trustee shall have been appointed by the
Company and be then acting hereunder, the term “Trustee” as used in this Article shall in such case
(unless the context otherwise requires) be construed as extending to and including such Paying
Agent within its meaning as fully for all intents and purposes as if such Paying Agent were named
in this Article in addition to or in place of the Trustee; provided, however, that Section 1513
shall not apply to the Company or any Affiliate of the Company if it or such Affiliate acts as
Paying Agent.

SECTION 1515. Certain Conversions Deemed Payment.

          For the purposes of this Article only, (1) the issuance and delivery of junior securities upon
conversion of Securities in accordance with Article Fourteen shall not be deemed to constitute a
payment or distribution on account of the principal of or any premium or interest on Securities or
on account of the purchase or other acquisition of Securities, and (2) the payment, issuance or
delivery of cash, property or securities (other than junior securities) upon conversion of a
Security shall be deemed to constitute payment on account of the principal of such Security. For
the purposes of this Section, the term “junior securities” means (a) shares of any stock of any
class of the Company and (b) securities of the Company which are subordinated in right of payment
to all Senior Debt which may be outstanding at the time of issuance or delivery of such securities
to substantially the same extent as, or to a greater extent than, the Securities are so
subordinated as provided in this Article.

SECTION 1516. Obligations of Company and Right to Convert Unconditional.

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

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          Nothing contained in this Article or elsewhere in this Indenture or in the Securities is
intended to or shall impair, as among the Company, its creditors other than holders of Senior Debt
and the Holders of the Securities, the right, which is absolute and unconditional, of the Holder of
any Security to convert such Security in accordance with Article Fourteen.

 

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     This instrument may be executed in any number of counterparts, each of which so executed shall
be deemed to be an original, but all such counterparts shall together constitute but one and the
same instrument.

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

	 	 	 	 	 
	 	THOMAS
WEISEL PARTNERS GROUP, INC.,
 the Company

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

	 	 	 	 	 
	Attest:

 	 
	
 	 	 
	Authorized Officer 	 
	 	 	 
	 

	 	 	 	 	 
	 	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., 

not in its
individual capacity but solely as Trustee
 	 
	 

	 	By:  	 	 
	 	 	Authorized Signatory	 
	 	 	 	 
	 

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