Indenture

Exhibit 4.1

THE PROVIDENCE SERVICE CORPORATION

as Issuer

and

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

as Trustee

Indenture

dated as of November      , 2007

$70,000,000

6.5% Convertible Senior Subordinated Notes due 2014

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CROSS REFERENCE TABLE *

N.A. means not applicable

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INDENTURE, dated as of November      , 2007, between The Providence Service Corporation, a Delaware corporation, as the “Company” and The Bank of New York Trust Company, N.A., a national banking association, as Trustee.

RECITALS

The Company has duly authorized the execution and delivery of the Indenture to provide for the initial issuance of $70,000,000 aggregate principal amount of the Company’s 6.5% Convertible Senior Subordinated Notes Due 2014 (the “Notes”). All things necessary to make the Indenture a valid and binding agreement of the Company, in accordance with its terms, have been done, and the Company has done all things necessary to make the Notes, when executed by the Company and authenticated and delivered by the Trustee and duly issued by the Company, the valid obligations of the Company as hereinafter provided. This Indenture is subject to, and will be governed by, the provisions of the Trust Indenture Act that are required to be a part of and govern indentures qualified under the Trust Indenture Act.

THIS INDENTURE WITNESSETH

For and in consideration of the premises and the purchase of the Notes by the Holders thereof, the parties hereto covenant and agree, for the equal and proportionate benefit of all Holders, as follows:

ARTICLE 1.

DEFINITIONS AND INCORPORATION BY REFERENCE

Section 1.01 Definitions .

“Acquisition” means the acquisition by the Company or one or more direct or indirect, wholly-owned Subsidiaries through a purchase, merger or other acquisition transaction or series of transactions, of 100% of the shares of Capital Stock of Target.

“Acquisition Agreement” means the Agreement and Plan of Merger, dated as of the date hereof, by and among Target, the Company, PRSC Acquisition Corporation and CLCI Agent, LLC, as stockholder representative.

“Acquisition Disbandment Notice” means a notice from the Company to the Holders that it is no longer pursuing the Acquisition.

“Additional Interest” means additional interest owed to the Holders pursuant to the Registration Rights Agreement.

“Affiliate” means, with respect to any Person, any other Person directly or indirectly controlling, controlled by, or under direct or indirect common control with, such Person. For purposes of this definition, “control” (including, with correlative meanings, the terms “controlling,” “controlled by” and “under common control with”) with respect to any Person, means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of such Person, whether through the ownership of Voting Securities, by contract or otherwise.

“Agent” means any Registrar, Paying Agent or Conversion Agent.

“Agent Member” means a member of, or a participant in, the Depositary.

“Applicable Conversion Rate” means the Conversion Rate on any Trading Day.

“Applicable Procedures” means, with respect to any transfer or exchange of beneficial ownership interests in a Global Note, the rules and procedures of the Depositary, in each case to the extent applicable to such transfer or exchange.

“Bankruptcy Default” has the meaning assigned to such term in Section 6.01.

“Bankruptcy Law” means Title 11 of the United States Code (or any successor thereto) or any similar federal or state law for the relief of debtors.

“Board of Directors” means the board of directors or comparable governing body of the Company, or any committee thereof duly authorized to act on its behalf.

“Board Resolution” means a resolution duly adopted by the Board of Directors which is certified by the Secretary or an Assistant Secretary of the Company and remains in full force and effect as of the date of its certification.

“Business Day” means any day except a Saturday, Sunday or other day on which commercial banks in New York City are authorized or obligated to close.

“Capital Stock” means, with respect to any Person, any and all shares of stock of a corporation, partnership interests or other equivalent interests (however designated, whether voting or non-voting) in such Person’s equity, entitling the holder to receive a share of the profits and losses, and a distribution of assets, after liabilities, of such Person.

“Cash” means such coin or currency of the United States as at any time of payment is legal tender for the payment of public and private debts.

“Certificated Note” means a Note in registered individual form without interest coupons.

“Close of Business” means 5:00 p.m. (New York City time).

“Closing Price” of the Common Stock on any date means the closing sale price per share (or if no closing sale price is reported, the average of the bid and ask prices or, if more than one in either case, the average of the average bid and the average ask prices) on that date as reported in composite transactions for the principal U.S. securities exchange on which the Common Stock is listed or admitted for trading or, if the Common Stock is not listed or admitted for trading on a U.S. national or regional securities exchange, as reported on the quotation system on which such security is quoted. If the Common Stock is not listed or admitted for trading on a United States national or regional securities exchange and not

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reported on a quotation system on the relevant date, the “closing price” will be the last quoted bid price for the Common Stock in the over-the-counter market on the relevant date as reported by the National Quotation Bureau or similar organization. If the Common Stock is not so quoted, the last reported sale price will be the average of the mid-point of the last bid and ask prices for the Common Stock on the relevant date from each of at least three nationally recognized investment banking firms selected by the Company for this purpose.

“Common Stock” means the common stock of the Company, $0.001 par value, as it exists on the date of this Indenture and any shares of any class or classes of Capital Stock of the Company 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, however, that if at any time there shall be more than one such resulting class, the shares of each such class then so issuable on conversion of Notes shall be substantially in the proportion which the total number of shares of such class resulting from all such reclassifications bears to the total number of shares of all such classes resulting from all such reclassifications.

“Company” means the party named as such in the first paragraph of the Indenture or any successor obligor under the Indenture and the Notes pursuant to Section 5.01.

“Consolidated EBITDA” means, for any fiscal quarter of the Company and its consolidated Subsidiaries, net income plus interest expense, income taxes and depreciation, amortization and fees and expenses related to the Acquisition and the related financing transactions incurred in such fiscal quarter.

“Consolidated Total Debt” means, at any date, the aggregate principal amount, without duplication, of all Debt of the Company and its Subsidiaries at such date determined on a consolidated basis.

“Conversion Date” means the date on which the Holder of the Note has complied with all requirements under this Indenture to convert such Note.

“Conversion Price” per share of Common Stock as of any day means the result obtained by dividing $1,000 by the Conversion Rate on such day.

“Conversion Rate” means 23.982 shares of Common Stock per $1,000 principal amount of Notes, subject to adjustment pursuant to Article 10.

“Corporate Trust Office” means the principal office of the Trustee at which any time its corporate trust business shall be administered, which at the date hereof is located at 700 S. Flower Street, Suite 500, Los Angeles, California 90017, Attention: Corporate Unit, or such other address as the Trustee may designate from time to time by notice to the Holders and the Company, or the principal corporate trust office of any successor Trustee (or such other address as such successor Trustee may designate from time to time by notice to the Holders and the Company).

“Credit Agreement” means the Second Amended and Restated Loan and Security Agreement dated as of June 28, 2005 (as amended and in effect from time to time), by and among the Company, certain of its subsidiaries named therein and CIT Healthcare LLC f/k/a Healthcare Business Credit

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Corporation (“CIT”), including the Second Amended and Restated Revolving Credit Note by the Company and others listed therein for the benefit of CIT dated June 28, 2005 and the Second Amended and Restated Term Note by the Company and others listed therein for the benefit of CIT dated June 28, 2005, and (y) the credit facility to be entered into by the Company with CIT Healthcare LLC and CIT Capital Securities LLC (and or any of their affiliates) simultaneously with the Acquisition.

“Debt” means, with respect to any Person, without duplication, (1) all indebtedness of such Person for borrowed money (other than non-recourse obligations); and (2) all obligations of such Person evidenced by bonds, debentures, notes or other similar instruments.

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

“Depositary” means DTC or the nominee thereof, or any successor thereto.

“DTC” means The Depository Trust Company, a New York corporation, and its successors.

“Event of Default” has the meaning assigned to such term in Section 6.01.

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission thereunder.

“GAAP” means generally accepted accounting principles in the United States of America as in effect from time to time.

“Global Note” means a Note in registered global form without interest coupons that is deposited with the Depositary or its custodian and registered in the name of the Depositary or its nominee.

“Global Note Legend” means the legend set forth in Exhibit A.

“Guarantee” means any obligation, contingent or otherwise, of any Person guaranteeing in any manner any indebtedness of any other Person. The term “Guarantee” used as a verb has a corresponding meaning. The term “Guarantor” shall mean any Person Guaranteeing any obligation.

“Holder” or “Noteholder” means the registered holder of any Note.

“Indenture” means this indenture, as amended or supplemented from time to time.

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

“interest,” in respect of the Notes, unless the context otherwise requires, refers to interest and Additional Interest, if any.

“Interest Payment Date” means each May 15 and November 15 of each year, commencing May 15, 2008.

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“Issue Date” means the date on which the Notes are originally issued under this Indenture.

“Mandatory Repurchase Price” means the price equal to (i) 100% of the principal amount of the Notes outstanding, plus (ii) an amount accrued on all outstanding Notes equal to 2% per month from the date of this Indenture to, but excluding, the Mandatory Repurchase Date, computed on the basis of a 360-day year of twelve 30-day months.

“Maturity Date” means (i) with respect to the Notes, May 15, 2014, or (ii) with respect to any scheduled payment of interest on the Notes, the date specified as the fixed date on which such interest payment is due and payable as set forth in this Indenture and the Notes, not including any contingent obligation to repay, redeem or repurchase prior to the regularly scheduled date for payment.

“NASD” means the National Association of Securities Dealers, Inc.

“Note Purchase Agreement” means that certain Note Purchase Agreement, dated as of November 6, 2007, among the Company and the Purchasers.

“Notes” has the meaning assigned to such term in the Recitals.

“Officer” means the chairman of the Board of Directors, the president or chief executive officer, any vice president, the chief financial officer, the treasurer or any assistant treasurer, or the secretary or any assistant secretary, of the Company.

“Officers’ Certificate” means a certificate signed in the name of the Company (i) by the chairman of the Board of Directors, the president or chief executive officer or a vice president and (ii) by the chief financial officer, the chief accounting officer, the treasurer or any assistant treasurer or the secretary or any assistant secretary.

“Opinion of Counsel” means a written opinion signed by legal counsel, who may be an employee of or counsel to the Company.

“Paying Agent” refers to a Person engaged to perform the obligations of the Trustee in respect of payments made or funds held hereunder in respect of the Notes.

“Person” means an individual, a corporation, a partnership, a limited liability company, an association, a trust or any other entity, including a government or political subdivision or an agency or instrumentality thereof.

“Purchasers” means the Purchasers named in Exhibit A to the Note Purchase Agreement.

“Register” has the meaning assigned to such term in Section 2.03.

“Registrar” means a Person engaged to maintain the Register.

“Registration Rights Agreement” means the Registration Rights Agreement dated as of November __, 2007, among the Company and Purchasers.

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“Regular Record Date” for the interest payable on any Interest Payment Date means the May 1 or November 1 (whether or not a Trading Day) next preceding such Interest Payment Date.

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

“Restricted Certificated Note” means a Certificated Note that bears the Restricted Note Legend.

“Restricted Common Stock Legend” means the legend set forth in Exhibit B.

“Restricted Global Note” means a Global Note that bears the Restricted Note Legend representing Notes transferred pursuant to Rule 144A and in accordance with the Note Purchase Agreement.

“Restricted Note” means a Note that bears the Restricted Note Legend.

“Restricted Note Legend” means the legend set forth in Exhibit A.

“Rule 144” means Rule 144 under the Securities Act.

“Rule 144A” means Rule 144A under the Securities Act.

“Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations of the Commission thereunder.

“Senior Debt” means the principal of, premium, if any, interest on, including any interest accruing after the commencement of any bankruptcy or similar proceedings, whether or not a claim for post-petition interest is allowed as a claim in the proceeding, or termination payment with respect to or in connection with, and all fees, costs, expenses and other amounts accrued or due on or under, one or more facilities for secured senior Indebtedness, including the Credit Agreement, and any Guarantees thereof (including by any pledge, lien or security interest of collateral with respect thereto), as any such facility may be amended, modified or supplemented from time to time, including any deferrals, renewals, extensions, refinancings or refundings thereof; provided , however , the amount of the Senior Debt shall not exceed an amount that would cause the Total Leverage Ratio as at the last day of any period of four consecutive fiscal quarters of the Company ending with the most recently completed fiscal quarter to exceed 5.5:1.0; provided , further , each such facility and the indebtedness thereunder is secured by substantially all of the assets of the Company.

“Shelf Registration Statement” has the meaning given such term in the Registration Rights Agreement.

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“Significant Subsidiary” means, in respect of any Person, a Subsidiary of such Person that would constitute a “significant subsidiary” as such term is defined under Rule 1-02 of Regulation S-X under the Securities Act and the Exchange Act.

“Subsidiary” means with respect to any Person, any corporation, association or other business entity of which more than 50% of the outstanding Voting Securities is owned, directly or indirectly, by, or, in the case of a partnership, the sole general partner or the managing partner or the only general partners of which are, such Person and one or more Subsidiaries of such Person (or a combination thereof). Unless otherwise specified, “Subsidiary” means a Subsidiary of the Company.

“Target” means Charter LCI Corporation, a Delaware corporation.

A “Termination of Trading” will be deemed to have occurred if the Common Stock (or other common stock into which the Convertible Senior Subordinated Notes are then convertible) is neither listed for trading on a U.S. national securities exchange nor approved for trading on an established U.S. system of automated dissemination of quotations of securities prices and no American Depositary Shares or similar instruments for such common stock are so listed or approved for listing in the United States.

“Total Leverage Ratio” means, as of the last day of any period of four consecutive fiscal quarters, the ratio of (a) Consolidated Total Debt on such day to (b) Consolidated EBITDA of the Company and its Subsidiaries for such period.

“Trading Day” means any day on which the Nasdaq Global Select Market or, if the Common Stock is not listed on the Nasdaq Global Select Market, the principal national securities exchange on which the Common Stock is listed, is open for trading or, if the Common Stock is not so listed, admitted for trading or quoted, any Business Day. A Trading Day only includes those days that have a scheduled closing time of 4:00 p.m. (New York City time) or the then standard closing time for regular trading on the relevant exchange or trading system.

“Trustee” means the party named as such in the first paragraph of the Indenture or any successor trustee under the Indenture pursuant to Article 7.

“Trust Indenture Act” means the Trust Indenture Act of 1939.

“Voting Securities” means, with respect to any Person, securities of any class or kind ordinarily having the power to vote generally for the election of directors, managers or other voting members of the governing body of such Person.

Section 1.02 Other Definitions .

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Section 1.03 Incorporation by Reference of Trust Indenture Act . Whenever this Indenture refers to a provision of the Trust Indenture Act, the provision is incorporated by reference in and made a part of this Indenture. The following Trust Indenture Act terms used in this Indenture have the following meanings:

“Commission” means the Securities and Exchange Commission.

“indenture securities” means the Notes.

“indenture security holder” means a Noteholder.

“indenture to be qualified” means this Indenture.

“indenture trustee” or “institutional trustee” means the Trustee.

“obligor” on the indenture securities means the Company.

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All other Trust Indenture Act terms used in this Indenture that are defined by the Trust Indenture Act, defined by Trust Indenture Act reference to another statute or defined by Securities Exchange Commission rule have the meanings assigned to them by such definitions.

Section 1.04 Rules of Construction . Unless the context otherwise requires or except as otherwise expressly provided ,

(a) a term has the meaning assigned to it;

(b) an accounting term not otherwise defined has the meaning assigned to it in accordance with GAAP;

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

(d) all references to Sections or Articles or Exhibits refer to Sections or Articles or Exhibits of or to the Indenture unless otherwise indicated;

(e) references to agreements or instruments, or to statutes or regulations, are to such agreements or instruments, or statutes or regulations, as amended from time to time (or to successor statutes and regulations);

(f) in the event that a transaction meets the criteria of more than one category of permitted transactions or listed exceptions the Company may classify such transaction as it, in its sole discretion, determines;

(g) “or” is not exclusive;

(h) “including” means including, without limitation; and

(i) words in the singular include the plural, and words in the plural include the singular.

Section 1.05 Acts of Holders . Any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to be given or taken by Holders may be embodied in and evidenced by one or more instruments (which may take the form of an electronic writing or messaging or otherwise be in accordance with customary procedures of the Depositary or the Trustee) of substantially similar tenor signed by such Holders in person or by agent duly appointed in writing (which may be in electronic form); and, except as herein otherwise expressly provided, such action shall become effective when such instrument or instruments are delivered to the Trustee and, where it is hereby expressly required, to the Company. Such instrument or instruments (and the action embodied therein and evidenced thereby) are herein sometimes referred to as the “Act” of Holders signing such instrument or instruments. Proof of execution of any such instrument or of a writing appointing any such agent (either of which may be in electronic form) shall be sufficient for any purpose of this Indenture and conclusive in favor of the Trustee and the Company, if made in the manner provided in this Section.

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ARTICLE 2.

THE NOTES

Section 2.01 Form, Dating and Denominations; Legends .

(a) The Notes and the Trustee’s certificate of authentication will be substantially in the form attached as Exhibit A. The terms and provisions contained in the form of the Note annexed as Exhibit A constitute and are hereby expressly made a part of the Indenture. The Notes may have notations, legends or endorsements required by law, rules of or agreements with national securities exchanges to which the Company is subject, or usage. Each Note will be dated the date of its authentication. The Notes will be issuable only in denominations of $1,000 in principal amount and any integral multiple thereof.

(b) Restricted Notes . All of the Notes are initially being offered and sold pursuant to the Note Purchase Agreement to Purchasers, all of which are Institutional Accredited Investors, and are initially being issued in the form of one or more Certificated Notes substantially in the form of Exhibit A hereto and containing the Restricted Note Legend, which Note shall be duly executed by the Company and authenticated by the Trustee as hereinafter provided. After a Note has been transferred by a Holder pursuant to the Shelf Registration Statement, such Note may be issued in global form substantially in the form of Exhibit A hereto and containing the Global Note Legend, which Note shall be deposited on behalf of the purchasers of the Notes represented thereby with the Trustee, at its Corporate Trust Office, as custodian for the Depositary, and registered in the name of its nominee, Cede & Co., duly executed by the Company and authenticated by the Trustee as hereinafter provided. The aggregate principal amount of each of the Global Notes may from time to time be increased or decreased by adjustments made on the records of the Trustee as hereinafter provided, subject in each case to compliance with the Applicable Procedures.

(c) Global Notes in General . Each Global Note shall represent such of the outstanding Notes as shall be specified therein and each shall provide that it shall represent the aggregate amount of outstanding Notes from time to time endorsed thereon and that the aggregate amount of outstanding Notes represented thereby may from time to time be reduced or increased, as appropriate, to reflect exchanges, purchases or conversions of such Notes. Any adjustment of the aggregate principal amount of a Global Note to reflect the amount of any increase or decrease in the amount of outstanding Notes represented thereby shall be made by the Trustee in accordance with instructions given by the Holder thereof as required by Section 2.06 and shall be made on the records of the Trustee and the Depositary.

Agent Members shall have no rights under this Indenture with respect to any Global Note held on their behalf by the Depositary or under the Global Note, and the Depositary (including, for this purpose, its nominee) may be treated by the Company, the Trustee and any agent of the Company or the Trustee as the absolute owner and Holder of such Global Note for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall (A) prevent the Company, the Trustee or any agent of the Company or the Trustee from giving effect to any written certification, proxy or other authorization furnished by the Depositary or (B) impair, as between the Depositary and its Agent Members, the operation of customary practices governing the exercise of the rights of a Holder of any Note.

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(d) Book Entry Provisions . Prior to the time the Shelf Registration Statement is declared effective by the Commission, the Company shall use its reasonable efforts to execute and the Trustee shall, in accordance with this Section 2.01(d), authenticate and deliver one or more Global Notes with respect to Notes that are transferred to Holders pursuant to the Shelf Registration Statement and that (i) shall be registered in the name of the Depositary, (ii) shall be delivered by the Trustee to the Depositary or pursuant to the Depositary’s instructions and (iii) shall bear the Global Note Legend substantially to the effect set forth in Exhibit A. This Section 2.01(d) shall only apply to Global Notes deposited with or on behalf of the Depositary.

(e) Restriction on Affiliate Transfers . No transfer of Notes to Affiliates of the Company will be permitted.

Section 2.02 Execution and Authentication . An Officer shall sign the Notes for the Company by manual or facsimile signature attested by the manual or facsimile signature of the Secretary or an Assistant Secretary of the Company. Typographic and other minor errors or defects in any such facsimile signature shall not affect the validity or enforceability of any Note which has been authenticated and delivered by the Trustee.

If an Officer whose signature is on a Note no longer holds that office at the time the Trustee authenticates the Note, the Note shall be valid nevertheless.

A Note shall not be valid until an authorized signatory of the Trustee manually signs the certificate of authentication on the Note. The signature shall be conclusive evidence that the Note has been authenticated under this Indenture.

The Trustee shall authenticate and make available for delivery Notes for original issue in the aggregate principal amount of $70,000,000 upon receipt of a written order or orders of the Company signed by an Officer of the Company (a “Company Order”). The Company Order shall specify the amount of Notes to be authenticated, shall provide that all such Notes will be represented initially by one or more Certificated Notes and the date on which each original issue of Notes is to be authenticated. The initial aggregate principal amount of Notes outstanding at any time may not exceed $70,000,000 except as provided in Section 2.07 and except as provided in the next succeeding paragraph.

The Trustee shall act as the initial authenticating agent. Thereafter, the Trustee may appoint an authenticating agent acceptable to the Company to authenticate Notes. An authenticating agent may authenticate Notes whenever the Trustee may do so. Each reference in this Indenture to authentication by the Trustee includes authentication by such agent. An authenticating agent shall have the same rights as an Agent to deal with the Company or an Affiliate of the Company.

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

In accordance with the terms of that certain Escrow Agreement dated as of November __, 2007, by and among the Company, The Bank of New York Trust Company, N.A., as escrow agent (“Escrow Agent”), the Trustee and the Holders (i) the Holders have agreed to deposit the aggregate principal dollar amount of Notes (the “Escrow Funds”) with the Escrow Agent and (ii) the Company has agreed to deposit with the Escrow Agent the Notes to be received by the Holders. The Escrow Funds and the Notes shall be released pursuant to and at the times set forth in the Escrow Agreement.

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Section 2.03 Registrar, Paying Agent and Conversion Agent . The Company shall maintain one or more offices or agencies where Notes may be presented for registration of transfer or for exchange (each, a “Registrar”), one or more offices or agencies where Notes may be presented for payment (each, a “Paying Agent”), one or more offices or agencies where Notes may be presented for conversion (each, a “Conversion Agent”) and one or more offices or agencies where notices and demands to or upon the Company in respect of the Notes and this Indenture may be served. The Company will at all times maintain a Paying Agent, Conversion Agent, Registrar and an office or agency where notices and demands to or upon the Company in respect of the Notes and this Indenture may be served in the United States. One of the Registrars (the “Primary Registrar”) shall keep a register of the Notes and of their transfer and exchange (the “Register”).

The Company shall enter into an appropriate agency agreement with any Agent not a party to this Indenture. The agreement shall implement the provisions of this Indenture that relate to such Agent. The Company shall notify the Trustee of the name and address of any Agent not a party to this Indenture. If the Company fails to maintain a Registrar, Paying Agent, Conversion Agent or agent for service of notices and demands in any place required by this Indenture, or fails to give the foregoing notice, the Trustee shall act as such. The Company or any Affiliate of the Company may act as Paying Agent (except for the purposes of Article 8).

The Company hereby initially designates the Trustee as Paying Agent, Registrar, and Conversion Agent, and the Corporate Trust Office of the Trustee as such office or agency of the Company for each of the aforesaid purposes.

Section 2.04 Paying Agent To Hold Money In Trust . Prior to noon, New York City time, on each date on which the principal amount of or interest, if any, on any Notes is due and payable, the Company shall deposit with a Paying Agent a sum sufficient to pay such principal amount or interest, if any, so becoming due. A Paying Agent shall hold in trust for the benefit of Noteholders or the Trustee all money held by the Paying Agent for the payment of principal amount of or interest, if any, on the Notes, and shall notify the Trustee of any default by the Company (or any other obligor on the Notes) in making any such payment. If the Company or an Affiliate of the Company acts as Paying Agent, it shall, before 11:00 a.m., New York City time, on each date on which a payment of the principal amount of or interest on any Notes is due and payable, segregate the money and hold it as a separate trust fund. The Company at any time may require a Paying Agent to pay all money held by it to the Trustee, and the Trustee may at any time during the continuance of any default, upon written request to a Paying Agent, require such Paying Agent to pay forthwith to the Trustee all sums so held in trust by such Paying Agent. Upon doing so, the Paying Agent (other than the Company) shall have no further liability for the money.

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

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Section 2.06 Transfer and Exchange . Subject to compliance with any applicable additional requirements contained in Section 2.14, when a Note is presented to a Registrar with a request to register a transfer thereof or to exchange such Note for an equal principal amount of Notes of other authorized denominations, the Registrar shall register the transfer or make the exchange as requested if its requirements for such transactions are met; provided , however , that every Note presented or surrendered for registration of transfer or exchange shall be duly endorsed or accompanied by an assignment form in the applicable form included in Exhibit A, and in form satisfactory to the Registrar duly executed by the Holder thereof or its attorney duly authorized in writing. To permit registration of transfers and exchanges, upon surrender of any Note for registration of transfer or exchange at an office or agency maintained pursuant to Section 2.03, the Company shall execute and the Trustee shall authenticate Notes of a like aggregate principal amount at the Registrar’s request. Any exchange or transfer shall be without charge, except that the Company or the Registrar may require payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto, and provided , that this sentence shall not apply to any exchange pursuant to Section 2.10, Section 3.04, Section 9.03(b) or Section 10.02(e) not involving any transfer.

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

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

Each Holder of a Note agrees to indemnify the Company and the Trustee against any liability that may result from the transfer, exchange or assignment of such Holder’s Note in violation of any provision of this Indenture and/or applicable United States federal or state securities law.

The Trustee shall have no obligation or duty to monitor, determine or inquire as to compliance with any restrictions on transfer imposed under this Indenture or under applicable law with respect to any transfer of any interest in any Note (including any transfers between or among Agent Members or other beneficial owners of interests in any Global Note) other than to require delivery of such certificates and other documentation or evidence as are expressly required by, and to do so if and when expressly required by the terms of, this Indenture, and to examine the same to determine substantial compliance as to form with the express requirements hereof.

Section 2.07 Replacement Notes . If any mutilated Note is surrendered to the Company, a Registrar or the Trustee, or the Company, a Registrar and the Trustee receive evidence to their satisfaction of the destruction, loss or theft of any Note, and there is delivered to the Company, the applicable Registrar and the Trustee such security or indemnity as will be required by them to save each of them harmless, then, in the absence of notice to the Company, such Registrar or the Trustee that such Note has been acquired by a protected purchaser, the Company shall execute, and upon its written request the Trustee shall authenticate and deliver, in exchange for any such mutilated Note or in lieu of any such destroyed, lost or stolen Note, a new Note of like tenor and principal amount, bearing a number not contemporaneously outstanding.

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In case any such mutilated, destroyed, lost or stolen Note has become or is about to become due and payable, or is about to be purchased by the Company pursuant to Article 3, the Company in its discretion may, instead of issuing a new Note, pay or purchase such Note, as the case may be.

Upon the issuance of any new Notes under this Section 2.07, 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 reasonable expenses (including the reasonable fees and expenses of the Trustee or the Registrar) in connection therewith.

Every new Note issued pursuant to this Section 2.07 in lieu of any mutilated, destroyed, lost or stolen Note shall constitute an original additional contractual obligation of the Company, whether or not the mutilated, destroyed, lost or stolen Note shall be at any time enforceable by anyone, and shall be entitled to all benefits of this Indenture equally and proportionately with any and all other Notes duly issued hereunder.

The provisions of this Section 2.07 are (to the extent lawful) 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 Notes.

Section 2.08 Outstanding Notes . Notes outstanding at any time are all Notes authenticated by the Trustee, except for those canceled by it, those converted pursuant to Article 10, those delivered to it for cancellation or surrendered for transfer or exchange and those described in this Section 2.08 as not outstanding.

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

If a Paying Agent holds at noon, New York City time, on the Maturity Date Cash sufficient to pay the principal amount of the Notes payable on that date, then on and after the Maturity Date, such Notes shall cease to be outstanding and the principal amount thereof shall cease to bear interest.

Subject to the restrictions contained in Section 2.09, a Note does not cease to be outstanding because the Company or an Affiliate of the Company holds the Note.

Section 2.09 Treasury Notes . In determining whether the Holders of the required principal amount of Notes have concurred in any notice, direction, waiver or consent, Notes owned by the Company or any other obligor on the Notes or by any Affiliate of the Company or of such other obligor shall be disregarded, except that, for purposes of determining whether the Trustee shall be protected in relying on any such notice, direction, waiver or consent, only Notes which a Responsible Officer of the Trustee actually knows are so owned shall be so disregarded. Notes so owned which have been pledged in good faith shall not be disregarded if the pledgee establishes to the satisfaction of the Trustee the pledgee’s right so to act with respect to the Notes and that the pledgee is not the Company or any other obligor on the Notes or any Affiliate of the Company or of such other obligor. Any Notes or shares of Common Stock issued upon the conversion of Notes that are purchased or owned by the Company or any Affiliate thereof may not be resold by the Company or such Affiliate unless registered under the Securities Act or resold pursuant to an exemption from the registration requirements of the Securities Act in a transaction that results in such Notes or shares of Common Stock, as the case may be, no longer being “restricted securities” (as defined under Rule 144).

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Section 2.10 Temporary Notes . Until definitive Notes are ready for delivery, the Company may prepare and execute, and, upon receipt of a Company Order, the Trustee shall authenticate and deliver, temporary Notes. Temporary Notes shall be substantially in the form of definitive Notes but may have variations that the Company with the consent of the Trustee considers appropriate for temporary Notes. Without unreasonable delay, the Company shall prepare and the Trustee shall authenticate and deliver definitive Notes in exchange for temporary Notes.

Section 2.11 Cancellation . The Company at any time may deliver Notes to the Trustee for cancellation. The Registrar, the Paying Agent and the Conversion Agent shall forward to the Trustee or its agent any Notes surrendered to them for transfer, exchange, payment or conversion. The Trustee and no one else shall cancel, in accordance with its standard procedures, all Notes surrendered for transfer, exchange, payment, conversion or cancellation and upon written request of the Company shall deliver the canceled Notes to the Company.

Section 2.12 CUSIP Numbers . The Company in issuing any Global Notes may use one or more “CUSIP” numbers (if then generally in use), and, if so, the Trustee shall use “CUSIP” numbers in notices of purchase as a convenience to Holders; provided , that any such notice may state that no representation is made as to the correctness of such numbers either as printed on the Notes or as contained in any notice of a purchase and that reliance may be placed only on the other identification numbers printed on the Notes, and any such purchase shall not be affected by any defect in or omission of such numbers. The Company will promptly notify the Trustee of any change in the “CUSIP” numbers.

Section 2.13 Book-entry Provisions For Global Notes .

(a) Transfers of Global Notes shall be limited to transfers in whole, but not in part, to the Depositary, its successors or their respective nominees. In addition, after Notes are issued pursuant to the Global Note, Certificated Notes shall be transferred to all beneficial owners, as identified by the Depositary, in exchange for their beneficial interests in Global Notes if (i) the Depositary notifies the Company that the Depositary is unwilling or unable to continue as depositary for any Global Note (or the Depositary ceases to be a “clearing agency” registered under Section 17A of the Exchange Act) and a successor Depositary is not appointed by the Company within 90 days of such notice or cessation or (ii) an Event of Default has occurred and is continuing and the Registrar has received a written request from the Depositary to issue Certificated Notes.

(b) In connection with the transfer of a Global Note in its entirety to beneficial owners pursuant to Section 2.13(a), such Global Note shall be deemed to be surrendered to the Trustee for cancellation, and the Company shall execute, and the Trustee shall upon written instructions from the Company authenticate and deliver, to each beneficial owner identified by the Depositary in exchange for its beneficial interest in such Global Note, an equal aggregate principal amount of Certificated Notes of authorized denominations.

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(c) Any Certificated Note constituting a Restricted Certificated Note delivered in exchange for an interest in a Global Note pursuant to Section 2.13(a) shall, except as otherwise provided by Section 2.14, bear the Restricted Note Legend.

(d) The Holder of any Global Note may grant proxies and otherwise authorize any Person to take any action that a Holder is entitled to take under this Indenture or the Notes.

Section 2.14 Special Transfer Provisions .

(a) Notwithstanding any other provisions of this Indenture, but except as provided in Section 2.14(b), a Global Note may not be transferred except as a whole by the Depositary to a nominee of the Depositary or by a nominee of the Depositary to the Depositary or another nominee of the Depositary or by the Depositary or any such nominee to a successor Depositary or a nominee of such successor Depositary.

(b) Every Note that bears or is required under this Section 2.14(b) to bear the Restricted Note Legend, and any Common Stock that bears or is required under this Section 2.14(b) to bear the Restricted Common Stock Legend (collectively, the “Restricted Securities”) shall be subject to the restrictions on transfer set forth in the Restricted Note Legend or the Restricted Common Stock Legend, as the case may be, unless such restrictions on transfer shall be waived by written consent of the Company, and the holder of each such Restricted Security, by such Notes holder’s acceptance thereof, agrees to be bound by all such restrictions on transfer. As used in this Section 2.14(b), the term “transfer” encompasses any sale, pledge, loan, transfer or other disposition whatsoever of any Restricted Security or any interest therein.

Any certificate evidencing such Note (and all securities issued in exchange therefor or substitution thereof), and any stock certificate representing shares of Common Stock issued upon conversion of any Note, shall bear a Restricted Note Legend or Restricted Common Stock Legend, as the case may be, unless such Note or such shares of Common Stock have been sold pursuant to a registration statement that has been declared effective under the Securities Act (and which continues to be effective at the time of such transfer) or pursuant to Rule 144 or any similar provision then in force, or such shares of Common Stock have been issued upon conversion of Notes that have been transferred pursuant to a registration statement that has been declared effective under the Securities Act or pursuant to Rule 144 under the Securities Act, or unless otherwise agreed by the Company in writing, with written notice thereof to the Trustee.

Any Note (or security issued in exchange or substitution therefor) as to which such restrictions on transfer shall have expired in accordance with their terms or as to conditions for removal of the Restricted Note Legend set forth therein have been satisfied may, upon surrender of such Note for exchange to the Registrar in accordance with the provisions of Section 2.06, be exchanged for a new Note or Notes, of like tenor and aggregate principal amount, which shall not bear the Restricted Note Legend. If the Restricted Note surrendered for exchange is represented by a Global Note bearing the Restricted Note Legend, the principal amount of the legended Global Note shall be reduced by the appropriate principal amount and the principal amount of a Global Note without the Restricted Note Legend shall be increased by an equal principal amount. If a Global Note without the Restricted Note Legend is not then outstanding, the Company shall execute and the Trustee shall authenticate and deliver an unlegended Global Note to the Depositary.

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Any such shares of Common Stock as to which such restrictions on transfer shall have expired in accordance with their terms or as to which the conditions for removal of the Restricted Common Stock Legend set forth therein have been satisfied may, upon surrender of the certificates representing such shares of Common Stock for exchange in accordance with the procedures of the transfer agent for the Common Stock, be exchanged for a new certificate or certificates for a like number of shares of Common Stock, which shall not bear the Restricted Common Stock Legend required by this Section 2.14.

(c) By its acceptance of any Note bearing the Restricted Note Legend, each Holder of such a Note acknowledges the restrictions on transfer of such Note set forth in this Indenture and in the Restricted Note Legend, and agrees that it will transfer such Note only as provided in this Indenture and as permitted by applicable law.

(d) The Registrar shall retain copies of all letters, notices and other written communications received pursuant to Section 2.13 or this Section 2.14. The Company shall have the right to inspect and make copies of all such letters, notices or other written communications at any reasonable time during normal hours of operation of the Registrar upon the giving of reasonable notice to the Registrar.

ARTICLE 3.

PURCHASES

Section 3.01 Repurchase At the Option of the Holder .

(a) If there shall have occurred a Fundamental Change, each Holder shall have the right, at such Holder’s option, to require the Company to purchase for Cash all or any portion of such Holder’s Notes in integral multiples of $1,000 principal amount on a date selected by the Company (the “Fundamental Change Purchase Date”), which Fundamental Change Purchase Date shall be no later than 35 Trading Days after the occurrence of such Fundamental Change, unless such 35 Trading Days would not provide Holders with at least 20 Trading Days’ notice, in which event the Fundamental Change Purchase Date shall be the day that provides the shortest period necessary to provide 20 Trading Days’ notice as required by subsection (b) of this Section 3.01, at a purchase price equal to 100% of the principal amount of the Notes to be purchased, plus accrued and unpaid interest to, but excluding, the Fundamental Change Purchase Date (the “Fundamental Change Purchase Price”), subject to satisfaction by or on behalf of the Holder of the requirements set forth in Section 3.01(c); provided that if the Fundamental Change Purchase Date is after a Regular Record Date and on or prior to the Interest Payment Date to which it relates, interest accrued to the Interest Payment Date will be paid to Holders of the Notes as of the preceding Regular Record Date.

A “Fundamental Change” shall be deemed to have occurred at such time as any of the following events shall occur: (i) the acquisition by any Person of beneficial ownership, directly or indirectly, through a purchase, merger or other acquisition transaction or series of transactions, of shares of the Company’s Capital Stock entitling that Person to exercise 50% or more of the total voting power of all

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shares of the Company’s Capital Stock entitled to vote generally in elections of directors, other than any acquisition by the Company, any of its subsidiaries or any of its employee benefit plans; or (ii) the Company merges or consolidates with or into any other Person, any merger of another Person into the Company, or any sale, transfer or lease of all or substantially all of the assets of the Company to another Person (other than to one or more wholly-owned subsidiaries of the Company), other than any such transaction (A) pursuant to which the holders of 50% or more of the total voting power of all shares of the Company’s capital stock entitled to vote generally in the election of directors immediately prior to such transaction have or have the entitlement to receive, directly or indirectly, at least 50% or more of the total voting power of all shares of capital stock entitled to vote generally in the election of directors of the continuing or surviving corporation immediately after such transaction or (B) any transaction which is effected solely to change the jurisdiction of incorporation of the Company and results in a reclassification, conversion or exchange of outstanding shares of Common Stock into solely shares of common stock; or (iii) if, during any consecutive two-year period, individuals who at the beginning of that two-year period constituted the Company’s Board of Directors, together with any new directors whose election to the Company’s Board of Directors, or whose nomination for election by the Company’s stockholders, was approved by a vote of a majority of the directors then still in office who were either directors at the beginning of such period or whose election or nomination for election was previously so approved, cease for any reason to constitute a majority of the Company’s Board of Directors then in office; or (iv) if the Company, its Board of Directors or its stockholders pass a resolution approving a plan of liquidation, dissolution or winding up of the Company; or (v) upon the occurrence of a Termination of Trading.

For purposes of defining a Fundamental Change:

Notwithstanding the foregoing, it will not constitute a Fundamental Change under either prongs (i) or (ii) above if both (x) at least 90% of the consideration for the Common Stock (excluding Cash payments for fractional shares and Cash payments made in respect of dissenter’s appraisal rights) in the transaction or transactions otherwise constituting the Fundamental Change consists of common stock, depository receipts or other certificates representing common equity interests, together with any associated rights, traded on a U.S. national securities exchange or approved for trading on an established U.S. system of automated dissemination of quotations of securities prices, or which will be so traded or quoted when issued or exchanged in connection with such Fundamental Change, and (y) as a result of such transaction or transactions the Notes become convertible solely into such common stock and associated rights.

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(b) Prior to the earlier of (i) the consummation of the Acquisition and (ii) the Acquisition Repurchase Deadline, the Company shall, prior to noon, New York City time, on the Business Day immediately following the date on which the Company has knowledge of an anticipated Fundamental Change, post notice (the “Early Conversion Notice”) of such anticipated Fundamental Change to the Holders on the systems of the Depositary and the Company (or at the Company’s request, the Trustee, in the Company’s name and at the Company’s expense) shall mail a written notice of such anticipated Fundamental Change by first-class mail to the Trustee and to each Holder at their addresses shown in the register of the Registrar (and to beneficial owners as required by applicable law). Thereafter, as promptly as practicable following the date the Company publicly announces the Fundamental Change transaction, but in no event less than 20 Trading Days prior to the anticipated effective date of a Fundamental Change in the case of a Fundamental Change within the control of the Company or of which the Company has at least 30 Trading Days prior notice, the Company (or at the Company’s request, the Trustee, in the Company’s name and at the Company’s expense) shall mail a written notice of Fundamental Change (the text of which shall be prepared by the Company) by first-class mail to each Holder at their addresses shown in the register of the Registrar (and to beneficial owners as required by applicable law). The notice shall include a form of Fundamental Change Purchase Notice to be completed by the Noteholder and shall state:

(i) briefly, the events causing such Fundamental Change;

(ii) the anticipated effective date of such Fundamental Change;

(iii) the last date by which the Fundamental Change Purchase Notice pursuant to this Section 3.01 must be given;

(iv) the Fundamental Change Purchase Price;

(v) the Fundamental Change Purchase Date;

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

(vii) that the Notes are then convertible and the then-current Conversion Rate and any adjustments thereto;

(viii) that Notes with respect to which a Fundamental Change Purchase Notice has been given by the Holder may be converted pursuant to Article 10 hereof only if the Fundamental Change Purchase Notice has been withdrawn in accordance with the terms of this Indenture;

(ix) briefly, the procedures a Holder must follow to exercise rights under this Section 3.01;

(x) that Notes must be surrendered to the Paying Agent to collect payment of the Fundamental Change Purchase Price;

(xi) that the Fundamental Change Purchase Price for any Note as to which a Fundamental Change Purchase Notice has been duly given and not withdrawn, together with any accrued interest payable with respect thereto, will be paid on or prior to the third Trading Day following the later of the Fundamental Change Purchase Date and the time of surrender of such Note;

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(xii) briefly, the conversion rights of the Notes;

(xiii) the procedures for withdrawing a Fundamental Change Purchase Notice;

(xiv) that, unless the Company defaults in making payment of such Fundamental Change Purchase Price and interest due, if any, interest on Notes surrendered for purchase will cease to accrue on and after the Fundamental Change Purchase Date; and

(xv) the CUSIP number of the Notes.

(c) A Holder may exercise its rights specified in Section 3.01(a) by delivery of a written notice of purchase (a “Fundamental Change Purchase Notice”) to the Paying Agent at any time prior to the Close of Business on the Fundamental Change Purchase Date, stating:

(i) the certificate number of the Note which the Holder will deliver to be purchased, if Certificated Notes have been issued, or notice compliant with the relevant DTC procedures if the Notes are not certificated;

(ii) the portion of the principal amount of the Note which the Holder will deliver to be purchased, which portion must be $1,000 or an integral multiple thereof; and

(iii) that such Note shall be purchased pursuant to the terms and conditions specified in this Article 3.

The delivery of such Note to the Paying Agent prior to, on or after the Fundamental Change Purchase Date (together with all necessary endorsements) at the offices of the Paying Agent shall be a condition to the receipt by the Holder of the Fundamental Change Purchase Price therefor; provided, however, that such Fundamental Change Purchase Price shall be so paid pursuant to this Section 3.01 only if the Note so delivered to the Paying Agent shall conform in all respects to the description thereof set forth in the related Fundamental Change Purchase Notice.

The Company shall purchase from the Holder thereof, pursuant to this Section 3.01, a portion of a Note if the principal amount of such portion is $1,000 or an integral multiple of $1,000. Provisions of this Indenture that apply to the purchase of all of a Note also apply to the purchase of such portion of such Note.

Any purchase by the Company contemplated pursuant to the provisions of this Section 3.01 shall be consummated by the delivery of the consideration to be received by the Holder (together with accrued and unpaid interest) on or prior to the third Business Day following the later of the Fundamental Change Purchase Date and the time of delivery of the Note to the Paying Agent in accordance with this Section 3.01.

Notwithstanding anything herein to the contrary, any Holder delivering to the Paying Agent the Fundamental Change Purchase Notice contemplated by this Section 3.01(c) shall have the right to

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withdraw such Fundamental Change Purchase Notice at any time prior to the Close of Business on the Fundamental Change Purchase Date by delivery of a written notice of withdrawal to the Paying Agent in accordance with Section 3.02.

The Paying Agent shall promptly notify the Company of the receipt by it of any Fundamental Change Purchase Notice or written withdrawal thereof.

There shall be no purchase of any Notes pursuant to this Section 3.01 if there has occurred (prior to, on or after, as the case may be, the giving, by the Holders of such Notes, of the required Fundamental Change Purchase Notice) and is continuing an Event of Default (other than a default in the payment of the Fundamental Change Purchase Price). The Paying Agent will promptly return to the respective Holders thereof any Notes (x) with respect to which a Fundamental Change Purchase Notice has been withdrawn in compliance with this Indenture, or (y) held by it during the continuance of an Event of Default (other than a default in the payment of the Fundamental Change Purchase Price) in which case, upon such return, the Fundamental Change Purchase Notice with respect thereto shall be deemed to have been withdrawn.

Section 3.02 Effect of Fundamental Change Purchase Notice .

(a) Upon receipt by the Paying Agent of the Fundamental Change Purchase Notice specified in Section 3.01(c), the Holder of the Note in respect of which such Fundamental Change Purchase Notice was given shall (unless such Fundamental Change Purchase Notice is withdrawn as specified in the following two paragraphs) thereafter be entitled to receive solely the Fundamental Change Purchase Price and any accrued and unpaid interest, with respect to such Note. Such Fundamental Change Purchase Price and interest shall be paid to such Holder, subject to receipt of funds by the Paying Agent, on or prior to the third Business Day following the later of (x) the Fundamental Change Purchase Date, with respect to such Note (provided the conditions in Section 3.01(c) have been satisfied) and (y) the time of delivery of such Note to the Paying Agent by the Holder thereof in the manner required by Section 3.01(c). Notes in respect of which a Fundamental Change Purchase Notice has been given by the Holder thereof may not be converted pursuant to Article 10 hereof on or after the date of the delivery of such Fundamental Change Purchase Notice unless such Fundamental Change Purchase Notice has first been validly withdrawn as specified in Section 3.02(b).

(b) A Fundamental Change Purchase Notice may be withdrawn by means of a written notice of withdrawal delivered to the office of the Paying Agent in accordance with the Fundamental Change Purchase Notice at any time prior to the Close of Business on the Fundamental Change Purchase Date specifying:

(i) the certificate number of the Note which the Holder will deliver to be purchased, if Certificated Notes have been issued, or notice compliant with the relevant DTC procedures, if the Notes are not certificated,

(ii) the principal amount of the Note with respect to which such notice of withdrawal is being submitted, and

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(iii) the principal amount, if any, of such Note which remains subject to the original Fundamental Change Purchase Notice and which has been or will be delivered for purchase by the Company.

A written notice of withdrawal of a Fundamental Change Purchase Notice may be in the form set forth in the preceding paragraph.

Section 3.03 Deposit of Fundamental Change Purchase Price . Prior to 1:00 p.m. (New York City time) on or prior to the third Business Day following the Fundamental Change Purchase Date, the Company shall deposit with the Trustee or with the Paying Agent (or, if the Company or a Subsidiary or an Affiliate of either of them is acting as the Paying Agent, shall segregate and hold in trust as provided in Section 2.04) an amount of money (in immediately available funds if deposited on such Trading Day) sufficient to pay the aggregate Fundamental Change Purchase Price of all the Notes or portions thereof which are to be purchased as of the Fundamental Change Purchase Date.

If the Trustee or the Paying Agent holds money sufficient to pay the Fundamental Change Purchase Price of a Note on the third Business Day following the Fundamental Change Purchase Date in accordance with the terms hereof, then, immediately after the Fundamental Change Purchase Date, interest on such Note will cease to accrue, whether or not the Note is delivered to the Trustee or the Paying Agent, and all other rights of the holder shall terminate, other than the right to receive the Fundamental Change Purchase Price upon delivery of the Note.

Section 3.04 Notes Purchased In Part . Any Note which is to be purchased only in part shall be surrendered at the office of the Paying Agent (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 such Holder’s attorney duly authorized in writing) and the Company shall execute and the Trustee shall authenticate and deliver to the Holder of such Note, without service charge, a new Note or Note, of any authorized denomination as requested by such Holder in aggregate principal amount equal to, and in exchange for, the portion of the principal amount of the Note so surrendered that is not purchased.

Section 3.05 Covenant To Comply With Securities Laws Upon Repurchase of Notes . When complying with the provisions of Section 3.01 (provided, that such offer or purchase constitutes an “issuer tender offer” for purposes of Rule 13e-4 (which term, as used herein, includes any successor provision thereto) under the Exchange Act at the time of such offer or purchase), and subject to any exemptions available under applicable law, the Company shall:

(a) comply with Rule 13e-4 and Rule 14e-1 (or any successor provision) under the Exchange Act, as applicable;

(b) file the related Schedule TO (or any successor schedule, form or report) if required under the Exchange Act, as applicable;

(c) otherwise comply with all federal and state securities laws so as to permit the rights and obligations under Section 3.01 to be exercised in the time and in the manner specified therein.

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To the extent that the provisions of any securities laws, rules or regulations conflict with the provisions of Section 3.01, the Company’s compliance with such laws, rules and regulations shall not in and of itself cause a breach of its obligations under Section 3.01.

Section 3.06 Mandatory Repurchase by the Company if the Acquisition is not Consummated.

(a) If the Acquisition is not consummated on or prior to the earlier of (i) December 31, 2007 (which date may be extended by the written consent of the Holders of a majority in aggregate principal amount of the Notes to the earlier of February 15, 2008 and the date to which the termination date in the Acquisition Agreement shall have been extended pursuant to the terms of the Acquisition Agreement) (the “Final Deadline Date”) and (ii) the date on which the Company delivers an Acquisition Disbandment Notice (the “Acquisition Repurchase Deadline”), then the Company shall be required on the first to occur of the Final Deadline Date or the Business Day following the delivery of the Acquisition Disbandment Notice (the “Mandatory Repurchase Date”), to repurchase (the “Repurchase”) all of the Notes then outstanding at a price payable in cash equal to the Mandatory Repurchase Price.

(b) On the Mandatory Repurchase Date, the Company shall direct the Trustee to mail, or cause to be mailed, by first-class mail a notice of the Repurchase (the form and content to be prepared by the Company) to each Holder whose Notes are to be repurchased, at the address of such Holder appearing in the security register. The notice shall state:

(i) the Mandatory Repurchase Date;

(ii) the Mandatory Repurchase Price;

(iii) if the Notes are then convertible, the Conversion Rate and the Conversion Price;

(iv) the names and addresses of the Paying Agent and the Conversion Agent;

(v) that the right to convert the Notes called for Repurchase will terminate at the close of business on the Business Day immediately preceding the Repurchase Date, unless there shall be a Default in the payment of the Repurchase Price;

(vi) that Notes to be Repurchased must be surrendered to the Paying Agent to collect the Mandatory Repurchase Price;

(vii) that, unless there shall be a Default in the payment of the Repurchase Price, interest on Notes to be Repurchased ceases to accrue on and after the Mandatory Repurchase Date, and all rights of the Holders of such Notes shall terminate on and after the Repurchase Date, other than the right to receive, upon surrender of such Notes and in accordance with this Indenture, the amounts due hereunder on such Notes upon Repurchase; and

(viii) the CUSIP number or numbers, as the case may be, of the Notes.

(c) If the Notes are then convertible, the right, to the extent provided in Article 10 to convert Notes to be Repurchased shall terminate at the close of business on the Business Day immediately preceding the Repurchase Date, unless there shall be a Default in the payment of the Repurchase Price.

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(d) If the Acquisition is not consummated prior to the Mandatory Repurchase Date, Notes to be Repurchased shall become due and payable on the Mandatory Repurchase Date at the Mandatory Repurchase Price, the Holders shall not be entitled to receive and the Company shall not be obligated to pay interest on the Notes accrued from the date of issuance of the Notes, and, on and after such Mandatory Repurchase Date (unless there shall be a Default in the payment of such consideration), except as otherwise provided herein, such Notes shall cease to bear interest, and all rights of the Holders of such Notes shall terminate, other than the right to receive the Mandatory Repurchase Price upon surrender of such Notes to the Paying Agent. If any Note shall not be fully and duly paid in accordance herewith upon Repurchase, the principal of, and accrued and unpaid interest on, such Note shall, until paid, bear interest at the rate borne by such Note on the principal amount of such Note, and such Note shall be convertible to the extent provided in Article 10.

(e) Prior to noon, New York City time on the Mandatory Repurchase Date, the Company shall deposit or cause to be deposited with a Paying Agent money, in funds immediately available on the Mandatory Repurchase Date, sufficient to pay the consideration payable as herein provided upon Repurchase on all Notes outstanding on that date. The Paying Agent shall return to the Company, as soon as practicable, any money not required for that purpose.

ARTICLE 4.

COVENANTS

Section 4.01 Payment of Notes .

(a) The Company agrees to pay the principal of and interest on the Notes on the dates and in the manner provided in the Notes and the Indenture. Not later than noon (New York City time) on the due date of any principal of or interest on any Notes, or any purchase price of the Notes, the Company will deposit with the Trustee (or Paying Agent) money in immediately available funds sufficient to pay such amounts, provided that if the Company or any Affiliate of the Company is acting as Paying Agent, it will, on or before each due date, segregate and hold in a separate trust fund for the benefit of the Holders a sum of money sufficient to pay such amounts until paid to such Holders or otherwise disposed of as provided in the Indenture. In each case the Company will promptly notify the Trustee of its compliance with this paragraph.

(b) An installment of principal or interest will be considered paid on the date due if the Trustee (or Paying Agent, other than the Company or any Affiliate of the Company) holds on that date money designated for and sufficient to pay the installment. If the Company or any Affiliate of the Company acts as Paying Agent, an installment of principal or interest will be considered paid on the due date only if paid to the Holders.

(c) The Company agrees to pay interest on overdue principal, and, to the extent lawful, overdue installments of interest at the rate per annum specified in the Notes plus 2%.

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(d) Payments in respect of the Notes represented by the Global Notes are to be made by wire transfer of immediately available funds to the accounts specified by the Holders of the Global Notes. With respect to Certificated Notes, the Company will make all payments by wire transfer of immediately available funds to the accounts specified by the Holders thereof or, if no such account is specified, by mailing a check to each Holder’s registered address.

Section 4.02 Maintenance of Office or Agency . The Company will maintain in the United States, an office or agency where Notes may be surrendered for registration of transfer or exchange or for presentation for payment and where notices and demands to or upon the Company in respect of the Notes and the Indenture may be served. The Company hereby initially designates the Corporate Trust Office of the Trustee as such office of the Company. 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 fails to maintain any such required office or agency or fails to furnish the Trustee with the address thereof, such presentations, surrenders, notices and demands may be made or served to the Trustee.

The Company may also from time to time designate one or more other offices or agencies where the Notes may be surrendered or presented for any of such purposes and may from time to time rescind such designations. The Company will give prompt written notice to the Trustee of any such designation or rescission and of any change in the location of any such other office or agency.

Section 4.03 Existence . The Company will do or cause to be done all things necessary to preserve and keep in full force and effect its existence and the material rights and franchises of the Company, except in the case of such rights and franchises, where the failure to do so would not have a material adverse effect on the business of the Company and its subsidiaries, taken as a whole, or the Company has otherwise determined that it is not in the best interest of the Company to do so; and provided further that this Section does not prohibit any transaction otherwise permitted by Section 5.01.

Section 4.04 Rule 144A Information and Exchange Act Reports .

(a) At any time the Company is not subject to Sections 13 or 15(d) of the Exchange Act, the Company shall, so long as any of the Notes or any shares of Common Stock issuable upon conversion thereof shall, at such time, constitute “restricted securities” within the meaning of Rule 144(a)(3) under the Securities Act, promptly provide to the Trustee and shall, upon written request, provide to any Noteholder, beneficial owner or prospective purchaser of Notes or any shares of Common Stock issued upon conversion of any Notes, the information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act to facilitate the resale of such Notes or shares of Common Stock pursuant to Rule 144A under the Securities Act.

(b) The Company shall deliver to the Trustee, such annual, quarterly and current reports or other information and documents that are required to be filed with the Commission, copies of the Company’s annual reports (which shall contain audited financial statements of the Company), and quarterly and current reports and of the other information and documents (or copies of such portions of any of the foregoing as the Commission may by rules and regulations prescribe) that the Company is required to file with the Commission pursuant to Section 13 or Section 15(d) of the Exchange Act at the time the Company is required to file such annual, quarterly and current reports and other information and documents; provided that any such annual, quarterly and current reports, other information or

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documents required to be filed with the Commission shall be deemed delivered to the Trustee at the same time the same is filed with the Commission. The Company shall be deemed to have complied with the previous sentence to the extent that the Company shall have filed or furnished such annual, quarterly and current reports or other information and documents to the SEC via EDGAR (or any successor electronic delivery procedure). In the event the Company is at any time no longer subject to the reporting requirements of Section 13 or Section 15(d) of the Exchange Act, the Company shall continue to provide the Trustee and, upon written request, to each Noteholder, annual, quarterly and current reports or other information and documents containing substantially the same information as would have been required to be filed with the SEC had the Company continued to have been subject to such reporting requirements. In such event, such annual, quarterly and current reports shall be provided at the times the Company would have been required to provide the applicable report had it continued to have been subject to such reporting requirements.

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 exclusively on Officers’ Certificates).

Section 4.05 Reports to Trustee .

(a) The Company will deliver to the Trustee within 120 days after the end of each fiscal year a certificate from the principal executive, financial or accounting officer of the Company stating that the officer has conducted or supervised a review of the activities of the Company and its Subsidiaries and their performance under the Indenture and that, based upon such review, the Company has fulfilled its obligations hereunder or, if there has been a Default, specifying the Default and its nature and status.

(b) The Company will deliver to the Trustee, as soon as possible and in any event within 30 days after the Company becomes aware or should reasonably become aware of the occurrence of a Default, an Officers’ Certificate setting forth the details of the Default, and the action which the Company proposes to take with respect thereto.

Section 4.06 Stay, Extension and Usury Laws . The Company covenants (to the extent that it may lawfully do so) that it will not at any time insist upon, plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay, extension or usury law wherever enacted, now or at any time hereafter in force, which may affect the covenants or the performance of this Indenture; and the Company (in each case, to the extent that it may lawfully do so) hereby covenants that it will not, by resort to any such law to the extent it would 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.

Section 4.07 Payment of Additional Interest . If Additional Interest is payable by the Company pursuant to the Registration Rights Agreement, the Company shall deliver to the Trustee a certificate to that effect stating (i) the amount of such Additional Interest that is payable, (ii) the reason why such Additional Interest is payable and (iii) the date on which such Additional Interest is payable. Unless and

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until a Responsible Officer of the Trustee receives such a certificate, the Trustee may assume without inquiry that no such Additional Interest is payable. If the Company has paid Additional Interest directly to the Persons entitled to it, the Company shall deliver to the Trustee a certificate setting forth the particulars of such payment.

Section 4.08 Limitation on Incurring Certain Indebtedness . The Company will not, directly or indirectly, incur, or suffer to exist, any indebtedness (i) that by its terms would expressly rank senior in right of payment to the Notes and subordinate in right of payment to any of its Senior Debt or (ii) that ranks pari passu with the Notes and has a maturity date prior to May 15, 2014; provided that this clause (ii) shall not apply to any indebtedness (a) of a Person or any Subsidiary that is outstanding at the time such Person or Subsidiary becomes a Subsidiary of the Company (or is merged into or consolidated with the Company or any Subsidiary of the Company) or (b) in an aggregate amount not to exceed $25 million.

For the purposes of this Section 4.08, incur means, with respect to any indebtedness or other obligation of any Person, to create, issue, incur (including by conversion, exchange or otherwise), assume, guarantee or otherwise become liable in respect of such indebtedness or other obligation or the recording, as required pursuant to GAAP or otherwise, of any such indebtedness or other obligation on the balance sheet of such Person (and “incurrence,” “incurred” and “incurring” shall have meanings correlative to the foregoing).

ARTICLE 5.

CONSOLIDATION, MERGER, SALE OR LEASE OF ASSETS

Section 5.01 Consolidation, Merger, Sale or Lease of Assets by the Company .

(a) The Company, without the consent of the Holders of any of the outstanding Notes, may

(i) consolidate with or merge with or into any Person, or

(ii) sell, convey, transfer, or otherwise dispose of or lease all or substantially all of its assets as an entirety or substantially an entirety, in one transaction or a series of related transactions, to any Person;

provided , that

(A) either (x) the Company is the continuing Person or (y) the resulting, surviving or transferee Person is a corporation, partnership, limited liability company or trust organized and validly existing under the laws of the United States of America, any State thereof or the District of Columbia and expressly assumes by supplemental indenture all of the obligations of the Company under the Indenture and the Notes and the Registration Rights Agreement;

(B) immediately after giving effect to the transaction, no Event of Default and no Default has occurred and is continuing; and

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(C) the Company delivers to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that the consolidation, merger, transfer or lease and the supplemental indenture (if any) comply with the Indenture.

(b) Upon the consummation of any transaction effected in accordance with these provisions, if the Company is not the continuing Person, the resulting, surviving or transferee Person will succeed to, and be substituted for, and may exercise every right and power of, the Company under the Indenture and the Notes with the same effect as if such successor Person had been named as the Company in the Indenture. Upon such substitution, except in the case of a lease, unless the successor is one or more of the Company’s Subsidiaries, the Company will be released from its obligations under the Indenture and the Notes.

ARTICLE 6.

DEFAULT AND REMEDIES

Section 6.01 Events of Default . An “Event of Default” occurs with respect to the Notes if:

(a) the Company defaults in the payment of the principal of any Note, or any Fundamental Change Purchase Price or Mandatory Repurchase Price when the same becomes due and payable on the Maturity Date, on the Fundamental Change Purchase Date, on the Mandatory Repurchase Date, upon acceleration, or otherwise, whether or not such payment is prohibited by the subordination provisions of this Indenture;

(b) the Company fails to provide the notice required by Section 3.01(b) on a timely basis, whether or not such notice is prohibited by the subordination provisions of this Indenture;

(c) the Company defaults in the payment of interest (including any Additional Interest) on any Note when the same becomes due and payable, and the default continues for a period of 30 days, whether or not such payment is prohibited by the subordination provisions of this Indenture;

(d) the Company fails to comply with its obligation to convert any Notes into shares of Common Stock upon exercise of a Holder’s conversion right;

(e) the Company fails to comply with its obligations as provided under Article 5;

(f) any representation and warranty contained in the Note Purchase Agreement is at the time made inaccurate;

(g) the Company fails to comply with any covenant contained in the Note Purchase Agreement, the failure of which has not been cured within a period of 30 days;

(h) the Company fails to comply with any other covenant or agreement of the Company in the Indenture or the Notes and the default or breach continues for a period of 60 consecutive days after receipt of written notice to the Company by the Trustee or to the Company and the Trustee by the Holders of 25% or more in aggregate principal amount of the Notes then outstanding; provided, however, that the Company shall have 120 days after receipt of such notice to remedy, or receive a waiver for, any failure to comply with Section 4.04(b) of this Indenture so long as the Company is attempting to cure such failure as promptly as reasonably practicable;

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(i) (i) the failure by the Company to make any payment by the end of any applicable grace period after maturity of any principal and/or accrued interest with respect to Debt, where the amount of such unpaid and due principal and/or accrued interest is in an aggregate amount in excess of $10,000,000, or (ii) there is an acceleration of any principal and/or accrued interest with respect to Debt where the amount of such accelerated principal and interest is in an amount in excess of $10,000,000 because of a default with respect to such Debt; in any such case of (i) or (ii), without such Debt having been paid or discharged or such acceleration having been cured, waived, rescinded or annulled within a period of 30 days after written notice to the Company by the Trustee or to the Company and the Trustee by the Holders of not less than 25% in aggregate principal amount of the Notes then outstanding; provided, however, if any such failure or acceleration referred to in (i) or (ii) above shall cease or be cured, waived, rescinded or annulled, then the Event of Default by reason thereof shall be deemed not to have occurred and any acceleration hereunder as a result of the related Event of Default shall be automatically rescinded;

(j) a final judgment or final judgments for the payment of money are entered by a court or courts of competent jurisdiction against the company or any of its Subsidiaries and such judgment or judgments remain undischarged, unpaid or unstayed for a period (during which execution shall not be effectively stayed) of 60 days, provided that the aggregate of all such undischarged judgments exceeds $10,000,000;

(k) the Company or any Significant Subsidiary, pursuant to or under or within the meaning of any Bankruptcy Law, (i) commences a voluntary case or proceeding; (ii) consents to the entry of an order for relief against it in an involuntary case or proceeding or the commencement of any case against it; (iii) consents to the appointment of any receiver, trustee, assignee, liquidator, custodian or similar official of it or for any substantial part of its property; (iv) makes a general assignment for the benefit of its creditors; (v) files a petition in bankruptcy or answer or consent seeking reorganization or relief; or (vi) consents to the filing of such petition or the appointment of or taking possession by any receiver, trustee, assignee, liquidator, custodian or similar official; or

(l) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that (i) is for relief against the Company or any Significant Subsidiary in an involuntary case or proceeding, or adjudicates the Company or any Significant Subsidiary insolvent or bankrupt; (ii) appoints any receiver, trustee, assignee, liquidator, custodian or similar official of the Company or any Significant Subsidiary or for any substantial part of its property; or (iii) orders the winding up or liquidation of the Company or any Significant Subsidiary, and the order or decree remains unstayed and in effect for 60 days (an event of default specified in clause (k) or (l) a “Bankruptcy Default”).

Section 6.02 Acceleration .

(a) If an Event of Default, other than a Bankruptcy Default with respect to the Company, occurs and is continuing under the Indenture, the Trustee or the Holders of at least 25% in aggregate of the outstanding principal amount of the Notes, by written notice to the Company (and to the Trustee if the notice is given by the Holders), may, and the Trustee at the request of such Holders

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shall, in each case subject to the provisions of Article 12, declare the principal of and accrued interest on the Notes to be immediately due and payable. Upon a declaration of acceleration, such principal and interest will become immediately due and payable. If a Bankruptcy Default occurs with respect to the Company, the principal of and accrued interest on the Notes then outstanding will become immediately due and payable without any declaration or other act on the part of the Trustee or any Holder.

(b) The Holders of a majority in principal amount of the outstanding Notes by written notice to the Company and to the Trustee may waive all past defaults and rescind and annul a declaration of acceleration with respect to such Notes and its consequences if:

(i) all existing Events of Default, other than the nonpayment of the principal of, premium, if any, and interest on the Notes that have become due solely by the declaration of acceleration, have been cured or waived, and

(ii) the rescission would not conflict with any judgment or decree of a court of competent jurisdiction.

Section 6.03 Other Remedies . If an Event of Default occurs and is continuing, the Trustee may pursue, subject to the provisions of Article 12, in its own name or as trustee of an express trust, any available remedy by proceeding at law or in equity to collect the payment of principal of and interest on the Notes or to enforce the performance of any provision of the Notes or the Indenture. The Trustee may maintain a proceeding even if it does not possess any of the Notes or does not produce any of them in the proceeding.

Section 6.04 Waiver of Past Defaults . Except as otherwise provided in Sections 6.02, 6.07 and 9.02(b), the Holders of a majority in principal amount of the outstanding Notes may, by notice to the Trustee, waive an existing Default and its consequences. Upon such waiver, the Default will cease to exist, and any Event of Default arising therefrom will be deemed to have been cured, but no such waiver will extend to any subsequent or other Default or impair any right consequent thereon.

Section 6.05 Control by Majority . The Holders of a majority in aggregate principal amount of the outstanding Notes may direct the time,