Document:

_

Exhibit 4.1

SERVICESOURCE INTERNATIONAL, INC.

AND

WELLS FARGO BANK, NATIONAL ASSOCIATION,

as Trustee

INDENTURE

Dated as of August 13, 2013

1.50% Convertible Senior Notes due 2018

 

 

 

 

 

TABLE OF CONTENTS

	
 	
Page
	
 	
 
	
ARTICLE 1 	
 
	
Definitions 	
 
	
Section 1.01.  Definitions 	
1 
	
Section 1.02.  References to Interest 	
11 
	
ARTICLE 2 	
 
	
Issue, Description, Execution, Registration and Exchange of Notes 	
 
	
Section 2.01.  Designation and Amount 	
11 
	
Section 2.02.  Form of Notes 	
12 
	
Section 2.03.  Date and Denomination of Notes; Payments of Interest and Defaulted Amounts 	
12 
	
Section 2.04.  Execution, Authentication and Delivery of Notes 	
14 
	
Section 2.05.  Exchange and Registration of Transfer of Notes; Restrictions on Transfer; Depositary 	
14 
	
Section 2.06.  Mutilated, Destroyed, Lost or Stolen Notes 	
20 
	
Section 2.07.  Temporary Notes 	
21 
	
Section 2.08.  Cancellation of Notes Paid, Converted, Etc 	
21 
	
Section 2.09.  CUSIP Numbers 	
22 
	
Section 2.10.  Additional Notes; Repurchases 	
22 
	
ARTICLE 3 	
 
	
Satisfaction and Discharge 	
 
	
Section 3.01.  Satisfaction and Discharge 	
22 
	
ARTICLE 4 	
 
	
Particular Covenants of the Company 	
 
	
Section 4.01.  Payment of Principal and Interest 	
23 
	
Section 4.02.  Maintenance of Office or Agency 	
23 
	
Section 4.03.  Appointments to Fill Vacancies in Trustee's Office 	
24 
	
Section 4.04.  Provisions as to Paying Agent 	
24 
	
Section 4.05.  Existence 	
25 
	
Section 4.06.  Rule 144A Information Requirement and Annual Reports 	
25 
	
Section 4.07.  Stay, Extension and Usury Laws 	
27 
	
Section 4.08.  Compliance Certificate; Statements as to Defaults 	
27 
	
Section 4.09.  Further Instruments and Acts 	
27 

                                          i

	
ARTICLE 5 	
 
	
Lists of Holders and Reports by the Company and the Trustee 	
 
	
Section 5.01.  Lists of Holders 	
27 
	
Section 5.02.  Preservation and Disclosure of Lists 	
28 
	
ARTICLE 6 	
 
	
Defaults and Remedies 	
 
	
Section 6.01.  Events of Default 	
28 
	
Section 6.02.  Acceleration; Rescission and Annulment 	
29 
	
Section 6.03.  Additional Interest 	
30 
	
Section 6.04.  Payments of Notes on Default; Suit Therefor 	
31 
	
Section 6.05.  Application of Monies Collected by Trustee 	
32 
	
Section 6.06.  Proceedings by Holders 	
33 
	
Section 6.07.  Proceedings by Trustee 	
34 
	
Section 6.08.  Remedies Cumulative and Continuing 	
34 
	
Section 6.09.  Direction of Proceedings and Waiver of Defaults by Majority of Holders 	
34 
	
Section 6.10.  Notice of Defaults 	
35 
	
Section 6.11.  Undertaking to Pay Costs 	
35 
	
ARTICLE 7 	
 
	
Concerning the Trustee 	
 
	
Section 7.01.  Duties and Responsibilities of Trustee 	
36 
	
Section 7.02.  Reliance on Documents, Opinions, Etc 	
37 
	
Section 7.03.  No Responsibility for Recitals, Etc 	
38 
	
Section 7.04.  Trustee, Paying Agents, Conversion Agents, Bid Solicitation Agent or Note Registrar May Own Notes 	
38 
	
Section 7.05.  Monies and Shares of Common Stock to Be Held in Trust 	
39 
	
Section 7.06.  Compensation and Expenses of Trustee 	
39 
	
Section 7.07.  Officer's Certificate as Evidence 	
40 
	
Section 7.08.  Eligibility of Trustee 	
40 
	
Section 7.09.  Resignation or Removal of Trustee 	
40 
	
Section 7.10.  Acceptance by Successor Trustee 	
41 
	
Section 7.11.  Succession by Merger, Etc 	
42 
	
Section 7.12.  Trustee's Application for Instructions from the Company 	
42 
	
ARTICLE 8 	
 
	
Concerning the Holders 	
 
	
Section 8.01.  Action by Holders 	
42 
	
Section 8.02.  Proof of Execution by Holders 	
43 
	
Section 8.03.  Who Are Deemed Absolute Owners 	
43 
	
Section 8.04.  Company-Owned Notes Disregarded 	
43 
	
Section 8.05.  Revocation of Consents; Future Holders Bound 	
44 

                                          ii

	
ARTICLE 9 	
 
	
Holders' Meetings 	
 
	
Section 9.01.  Purpose of Meetings 	
44 
	
Section 9.02.  Call of Meetings by Trustee 	
45 
	
Section 9.03.  Call of Meetings by Company or Holders 	
45 
	
Section 9.04.  Qualifications for Voting 	
45 
	
Section 9.05.  Regulations 	
45 
	
Section 9.06.  Voting 	
46 
	
Section 9.07.  No Delay of Rights by Meeting 	
46 
	
ARTICLE 10 	
 
	
Supplemental Indentures 	
 
	
Section 10.01.  Supplemental Indentures Without Consent of Holders 	
47 
	
Section 10.02.  Supplemental Indentures with Consent of Holders 	
47 
	
Section 10.03.  Effect of Supplemental Indentures 	
48 
	
Section 10.04.  Notation on Notes 	
49 
	
Section 10.05.  Evidence of Compliance of Supplemental Indenture to Be Furnished Trustee 	
49 
	
ARTICLE 11 	
 
	
Consolidation, Merger, Sale, Conveyance and Lease 	
 
	
Section 11.01.  Company May Consolidate, Etc. on Certain Terms 	
49 
	
Section 11.02.  Successor Corporation to Be Substituted 	
50 
	
Section 11.03.  Opinion of Counsel to Be Given to Trustee 	
50 
	
ARTICLE 12 	
 
	
Immunity of Incorporators, Stockholders, Officers and Directors 	
 
	
Section 12.01.  Indenture and Notes Solely Corporate Obligations 	
50 
	
ARTICLE 13 	
 
	
[Intentionally Omitted] 	
 
	
ARTICLE 14 	
 
	
Conversion of Notes 	
 
	
Section 14.01.  Conversion Privilege 	
51 
	
Section 14.02.  Conversion Procedure; Settlement Upon Conversion. 	
53 
	
Section 14.03.  Increased Conversion Rate Applicable to Certain Notes Surrendered in Connection with Make-Whole Fundamental Changes 	
57 
	
Section 14.04.  Adjustment of Conversion Rate 	
59 
	
Section 14.05. Adjustments of Prices 	
68 
	
Section 14.06.  Shares to Be Fully Paid 	
68 
	
Section 14.07.  Effect of Recapitalizations, Reclassifications and Changes of the Common Stock. 	
68 

                                          iii

	
Section 14.08.  Certain Covenants 	
70 
	
Section 14.09.  Responsibility of Trustee 	
71 
	
Section 14.10.  Notice to Holders Prior to Certain Actions 	
71 
	
Section 14.11.  Stockholder Rights Plans 	
72 
	
Section 14.12.  Limit on Issuance of Shares of Common Stock Upon Conversion 	
72 
	
ARTICLE 15 	
 
	
Repurchase of Notes at Option of Holders 	
 
	
Section 15.01.  Intentionally Omitted. 	
72 
	
Section 15.02.  Repurchase at Option of Holders Upon a Fundamental Change 	
73 
	
Section 15.03.  Withdrawal of Fundamental Change Repurchase Notice 	
75 
	
Section 15.04.  Deposit of Fundamental Change Repurchase Price 	
75 
	
Section 15.05.  Covenant to Comply with Applicable Laws Upon Repurchase of Notes 	
76 
	
ARTICLE 16 	
 
	
No Optional Redemption 	
 
	
Section 16.01.  No Optional Redemption 	
76 
	
ARTICLE 17 	
 
	
Miscellaneous Provisions 	
 
	
Section 17.01.  Provisions Binding on Company's Successors 	
77 
	
Section 17.02.  Official Acts by Successor Corporation 	
77 
	
Section 17.03.  Addresses for Notices, Etc 	
77 
	
Section 17.04.  Governing Law; Jurisdiction 	
77 
	
Section 17.05.  Evidence of Compliance with Conditions Precedent; Certificates and Opinions of Counsel to Trustee 	
78 
	
Section 17.06.  Legal Holidays 	
78 
	
Section 17.07.  No Security Interest Created 	
78 
	
Section 17.08.  Benefits of Indenture 	
79 
	
Section 17.09.  Table of Contents, Headings, Etc 	
79 
	
Section 17.10.  Authenticating Agent 	
79 
	
Section 17.11.  Execution in Counterparts 	
80 
	
Section 17.12.  Severability 	
80 
	
Section 17.13.  Waiver of Jury Trial 	
80 
	
Section 17.14.  Force Majeure 	
80 
	
Section 17.15.  Calculations 	
80 
	
Section 17.16.  USA Patriot Act 	
81 
	
 	
 
	
EXHIBIT	
 
	
                              Exhibit A           Form of Note	
A-1

                                          iv

INDENTURE, dated as of August 13, 2013, between SERVICESOURCE INTERNATIONAL, INC., a Delaware corporation, as issuer (the
"Company", as more fully set forth in Section 1.01) and WELLS FARGO BANK, NATIONAL ASSOCIATION, a national
banking association, as trustee (the "Trustee", as more fully set forth in Section 1.01).

W I T N E S S E T H:

WHEREAS, for its lawful corporate purposes, the Company has duly authorized the issuance of its 1.50% Convertible Senior Notes due
2018 (the "Notes"), initially in an aggregate principal amount not to exceed $150,000,000, and in order to provide the
terms and conditions upon which the Notes are to be authenticated, issued and delivered, the Company has duly authorized the execution
and delivery of this Indenture; and

WHEREAS, the Form of Note, the certificate of authentication to be borne by each Note, the Form of Notice of Conversion, the Form of
Fundamental Change Repurchase Notice and the Form of Assignment and Transfer to be borne by the Notes are to be substantially in the
forms hereinafter provided; and

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

NOW, THEREFORE, THIS INDENTURE WITNESSETH:

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

ARTICLE 1

Definitions

Section 1.01.     Definitions.  The terms defined in
this Section 1.01 (except as herein otherwise expressly provided or unless the context otherwise requires) for all purposes of this Indenture
and of any indenture supplemental hereto shall have the respective meanings specified in this Section 1.01.  The words "herein,"
"hereof," "hereunder," and words of similar import refer to this Indenture as a whole and not to any particular Article,
Section or other subdivision.  The terms defined in this Article include the plural as well as the singular.

"Additional Interest" means all amounts, if any, payable pursuant to Section 4.06(d), Section 4.06(e) and Section
6.03, as applicable.

"Additional Shares" shall have the meaning specified in Section 14.03.

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

"Bid Solicitation Agent" means the Person appointed by the Company to solicit bids for the Trading Price of the
Notes in accordance with Section 14.01(b).  The Trustee shall initially act as the Bid Solicitation Agent.

"Board of Directors" means the board of directors of the Company or a committee of such board duly authorized to
act for it hereunder.

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

"Business Day" means, with respect to any Note, any day other than a Saturday, a Sunday or a day on which the
Federal Reserve Bank of New York is authorized or required by law or executive order to close or be closed.  

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

"Cash Settlement" shall have the meaning specified in Section 14.02(a).

"Clause A Distribution" shall have the meaning specified in Section 14.04(c).

"Clause B Distribution" shall have the meaning specified in Section 14.04(c).

"Clause C Distribution" shall have the meaning specified in Section 14.04(c).

"close of business" means 5:00 p.m. (New York City time).

"Combination Settlement" shall have the meaning specified in Section 14.02(a).

"Commission" means the U.S. Securities and Exchange Commission.

                                              2

"Common Equity" of any Person means Capital Stock of such Person that is generally entitled (a) to vote in the
election of directors of such Person or (b) if such Person is not a corporation, to vote or otherwise participate in the selection of the governing
body, partners, managers or others that will control the management or policies of such Person.

"Common Stock" means the common stock of the Company, par value $0.0001 per share, at the date of this
Indenture, subject to Section 14.07.

"Company" shall have the meaning specified in the first paragraph of this Indenture, and subject to the
provisions of Article 11, shall include its successors and assigns.

"Company Order" means a written order of the Company, signed by (a) the Company's Chief Executive Officer, Chief
Financial Officer, President, Executive or Senior Vice President or any Vice President (whether or not designated by a number or numbers or
word or words added before or after the title "Vice President") and (b) any such other Officer designated in clause (a) of this
definition or the Company's Treasurer or Assistant Treasurer or Secretary or any Assistant Secretary, and delivered to the Trustee.

"Conversion Agent" shall have the meaning specified in Section 4.02.

"Conversion Date" shall have the meaning specified in Section 14.02(c).

"Conversion Obligation" shall have the meaning specified in Section 14.01.

"Conversion Price" means as of any date, $1,000, divided by the Conversion Rate as of such date.

"Conversion Rate" shall have the meaning specified in Section 14.01.

"Corporate Trust Office" means the designated office of the Trustee at which at any time its corporate trust business
shall be administered, which office at the date hereof is located at 707 Wilshire Blvd, 17th Floor, Los Angeles, CA 90017,
Attention: Corporate Trust Services, or such other address as the Trustee may designate from time to time by notice to the Holders and the
Company, or the designated 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) and with respect to presentation of notes for redemption, principal transfer or
exchange the office of the Trustee located at 608 Second Avenue South, N9303-121, Minneapolis, MN 55479.

"Custodian" means the Trustee, as custodian for The Depository Trust Company, with respect to the Global Notes,
or any successor entity thereto.

"Daily Conversion Value" means, for each of the 50 consecutive Trading Days during the Observation Period, 2.0%
of the product of (a) the Conversion Rate on such Trading Day and (b) the Daily VWAP on such Trading Day.

"Daily Measurement Value" means the Specified Dollar Amount (if any), divided by 50.

                                              3

"Daily Settlement Amount," for each of the 50 consecutive Trading Days during the Observation Period, shall consist
of:

(a)cash in an amount equal to the lesser of (i) the Daily Measurement Value and (ii) the Daily Conversion Value on such Trading
Day; and

(b)if the Daily Conversion Value on such Trading Day exceeds the Daily Measurement Value, a number of shares of Common Stock
equal to (i) the difference between the Daily Conversion Value and the Daily Measurement Value, divided by (ii) the Daily VWAP for
such Trading Day.

"Daily VWAP" means the per share volume-weighted average price as displayed under the heading
"Bloomberg VWAP" on Bloomberg page "SREV<equity> AQR" (or its equivalent successor if such page is not
available) in respect of the period from the scheduled open of trading until the scheduled close of trading of the primary trading session on
such Trading Day (or if such volume-weighted average price is unavailable, the market value of one share of the Common Stock on such
Trading Day determined, using a volume-weighted average method, by a nationally recognized independent investment banking firm retained
for this purpose by the Company).  The "Daily VWAP" shall be determined without regard to after-hours trading or any
other trading outside of the regular trading session trading hours.

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

"Defaulted Amounts" means any amounts on any Note (including, without limitation, the Fundamental Change
Repurchase Price, principal and interest) that are payable but are not punctually paid or duly provided for.

"Depositary" means, with respect to each Global Note, the Person specified in Section 2.05(c) as the Depositary with
respect to such Notes, until a successor shall have been appointed and become such pursuant to the applicable provisions of this Indenture,
and thereafter, "Depositary" shall mean or include such successor.

"Distributed Property" shall have the meaning specified in Section 14.04(c).

"Effective Date" shall have the meaning specified in Section 14.03(c),
except that, as used in Section 14.04, "Effective Date" means the
first date on which shares of the Common Stock trade on the applicable exchange or in the applicable market, regular way, reflecting the
relevant share split or share combination, as applicable.

"Event of Default" shall have the meaning specified in Section 6.01.

"Ex-Dividend Date" means the first date on which shares of the Common Stock trade on the applicable exchange or
in the applicable market, regular way, without the right to receive the issuance, dividend or distribution in question, from the Company or, if
applicable, from the seller of Common Stock on such exchange or market (in the form of due bills or otherwise) as determined by such
exchange or market.

"Exchange Act" means the Securities Exchange Act of 1934, as amended, and the rules and regulations
promulgated thereunder.

                                              4

"Form of Assignment and Transfer" shall mean the "Form of Assignment and Transfer" attached as
Attachment 3 to the Form of Note attached hereto as Exhibit A.

"Form of Fundamental Change Repurchase Notice" shall mean the "Form of Fundamental Change
Repurchase Notice" attached as Attachment 2 to the Form of Note attached hereto as Exhibit A.

"Form of Note" shall mean the "Form of Note" attached hereto as Exhibit A.

"Form of Notice of Conversion" shall mean the "Form of Notice of Conversion" attached as Attachment 1
to the Form of Note attached hereto as Exhibit A.

 "Fundamental Change" shall be deemed to have occurred at the time after the Notes are originally issued if any of
the following occurs:

(a)a "person" or "group" within the meaning of Section 13(d) of the Exchange Act, other than the Company, its
Subsidiaries and the employee benefit plans of the Company and its Subsidiaries, files a Schedule TO or any schedule, form or report under
the Exchange Act disclosing that such person or group has become the direct or indirect "beneficial owner," as defined in Rule
13d-3 under the Exchange Act, of the Company's Common Equity representing more than 50% of the voting power of the Company's
Common Equity; 

(b)the consummation of (A) any recapitalization, reclassification or change of the Common Stock (other than changes resulting from
a subdivision or combination) as a result of which the Common Stock would be converted into, or exchanged for, stock, other securities, other
property or assets; (B) any share exchange, consolidation or merger of the Company pursuant to which the Common Stock will be converted
into cash, securities or other property or assets; or (C) any sale, lease or other transfer in one transaction or a series of transactions of all or
substantially all of the consolidated assets of the Company and its Subsidiaries, taken as a whole, to any Person other than one of the
Company's Subsidiaries; provided, however, that neither (i) a transaction described in clause (B) in which the holders of all classes of the
Company's Common Equity immediately prior to such transaction own, directly or indirectly, more than 50% of all classes of Common Equity
of the continuing or surviving corporation or transferee or the parent thereof immediately after such transaction in substantially the same
proportions as such ownership immediately prior to such transaction nor (ii) any merger of the Company solely for the purpose of changing
the Company's jurisdiction of incorporation that results in a reclassification, conversion or exchange of outstanding shares of Common Stock
solely into shares of common stock of the surviving entity shall be a Fundamental Change pursuant to this clause (b);

(c)the stockholders of the Company approve any plan or proposal for the liquidation or dissolution of the Company; or

(d)the Common Stock (or other common stock underlying the Notes) ceases to be listed or quoted on any of The New York Stock
Exchange, The NASDAQ Global Select Market or The NASDAQ Global Market (or any of their respective successors);

                                              5

provided, however, that a transaction or transactions described in clauses (a) or (b) above shall not constitute a
Fundamental Change if at least 90% of the consideration received or to be received by the common stockholders of the Company, excluding
cash payments for fractional shares and cash payments made in respect of dissenters' appraisal rights, in connection with such transaction or
transactions consists of shares of common stock that are listed or quoted on any of The New York Stock Exchange, The NASDAQ Global
Select Market or The NASDAQ Global Market (or any of their respective successors) or will be so listed or quoted when issued or exchanged
in connection with such transaction or transactions and as a result of such transaction or transactions the Notes become convertible into such
consideration, excluding cash payments for fractional shares and cash payments made in respect of dissenters' appraisal rights (subject to
the provisions of Section 14.07).

"Fundamental Change Company Notice" shall have the meaning specified in Section 15.02(c).

"Fundamental Change Repurchase Date" shall have the meaning specified in Section 15.02.

"Fundamental Change Repurchase Notice" shall have the meaning specified in Section 15.02(b)(i).

"Fundamental Change Repurchase Price" shall have the meaning specified in Section 15.02.

"Global Note" shall have the meaning specified in Section 2.05(b).

"Holder," as applied to any Note, or other similar terms (but excluding the term "beneficial holder"), shall
mean any Person in whose name at the time a particular Note is registered on the Note Register.

"Indenture" means this instrument as originally executed or, if amended or supplemented as herein provided, as so
amended or supplemented.

 "Interest Payment Date" means each August 1 and February 1 of each year, beginning on February 1,
2014.

"Last Reported Sale 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. national or regional securities exchange on
which the Common Stock is traded.  If the Common Stock is not listed for trading on a U.S. national or regional securities exchange on the
relevant date, the "Last Reported Sale Price" shall be the last quoted bid price for the Common Stock in the over-the-
counter market on the relevant date as reported by OTC Markets Group Inc. or a similar organization.  If the Common Stock is not so quoted,
the "Last Reported Sale Price" shall 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 independent investment banking firms selected by the Company for this
purpose.

                                              6

"Make-Whole Fundamental Change" means any transaction or event that constitutes a Fundamental Change (as
defined above and determined after giving effect to any exceptions to or exclusions from such definition, but without regard to subclause (i) of
the proviso in clause (b) of the definition thereof).

"Market Disruption Event" means, for the purposes of determining amounts due upon conversion (a) a failure by the
primary U.S. national or regional securities exchange or market on which the Common Stock is listed or admitted for trading to open for
trading during its regular trading session or (b) the occurrence or existence prior to 1:00 p.m., New York City time, on any Scheduled Trading
Day for the Common Stock for more than one half-hour period in the aggregate during regular trading hours of any suspension or limitation
imposed on trading (by reason of movements in price exceeding limits permitted by the relevant stock exchange or otherwise) in the Common
Stock or in any options contracts or future contracts relating to the Common Stock.

"Maturity Date" means August 1, 2018.

"Measurement Period" shall have the meaning specified in Section 14.01(b).

"Merger Event" shall have the meaning specified in Section 14.07(a).

"Note" or "Notes" shall have the meaning specified in the first paragraph of the recitals of this
Indenture.

"Note Register" shall have the meaning specified in Section 2.05.

"Note Registrar" shall have the meaning specified in Section 2.05.

"Notice of Conversion" shall have the meaning specified in Section 14.02(b).

"Observation Period" with respect to any Note surrendered for conversion means: (i) if the relevant Conversion Date
occurs prior to February 1, 2018, the 50 consecutive Trading Day period beginning on, and including, the second Trading Day immediately
succeeding such Conversion Date; and (ii) if the relevant Conversion Date occurs on or after February 1, 2018, the 50 consecutive Trading
Days beginning on, and including, the 52nd Scheduled Trading Day immediately preceding the Maturity Date.

"Offering Memorandum" means the preliminary offering memorandum dated August 6, 2013, as supplemented
by the related pricing term sheet dated August 7, 2013, relating to the offering and sale of the Notes.

"Officer" means, with respect to the Company, the President, the Chief Executive Officer, the Chief Financial Officer,
the Treasurer, the Secretary, any Executive or Senior Vice President or any Vice President (whether or not designated by a number or
numbers or word or words added before or after the title "Vice President").

                                              7

"Officer's Certificate," when used with respect to the Company, means a certificate that is delivered to the Trustee
and that is signed by an Officer of the Company.  Each such certificate shall include the statements provided for in Section 17.05 if and to the
extent required by the provisions of such Section.  The Officer giving an Officer's Certificate pursuant to Section 4.08 shall be the principal
executive, financial or accounting officer of the Company.

"open of business" means 9:00 a.m. (New York City time).

"Opinion of Counsel" means an opinion in writing signed by legal counsel, who may be an employee of or counsel to
the Company, or other counsel reasonably acceptable to the Trustee, that is delivered to the Trustee.  Each such opinion shall include the
statements provided for in Section 17.05 if and to the extent required by the provisions of such Section 17.05 and may contain customary qualifications and assumptions.

"outstanding," when used with reference to Notes, shall, subject to the provisions of Section 8.04, mean, as of any
particular time, all Notes authenticated and delivered by the Trustee under this Indenture, except:

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

(b)Notes, or portions thereof, that have become due and payable and in respect of which monies in the necessary amount shall have
been deposited in trust with the Trustee or with any Paying Agent (other than the Company) or shall have been set aside and segregated in
trust by the Company (if the Company shall act as its own Paying Agent);

(c)Notes that have been paid pursuant to Section 2.06 or Notes in lieu of which, or in substitution for which, other Notes shall have
been authenticated and delivered pursuant to the terms of Section 2.06 unless proof satisfactory to the Trustee is presented that any such
Notes are held by protected purchasers in due course; 

(d)Notes converted pursuant to Article 14 and required to be cancelled pursuant to
Section 2.08; and

(e)Notes repurchased by the Company pursuant to the penultimate sentence of Section 2.10. 

"Paying Agent" shall have the meaning specified in Section 4.02.

"Person" means an individual, a corporation, a limited liability company, an association, a partnership, a joint venture,
a joint stock company, a trust, an unincorporated organization or a government or an agency or a political subdivision thereof.

"Physical Notes" means permanent certificated Notes in registered form issued in denominations of $1,000 principal
amount and multiples thereof.

"Physical Settlement" shall have the meaning specified in Section 14.02(a).

                                              8

"Predecessor Note" of any particular Note means every previous Note evidencing all or a portion of the same debt as
that evidenced by such particular Note; and, for the purposes of this definition, any Note authenticated and delivered under Section 2.06 in
lieu of or in exchange for a mutilated, lost, destroyed or stolen Note shall be deemed to evidence the same debt as the mutilated, lost,
destroyed or stolen Note that it replaces.

 "Reference Property" shall have the meaning specified in Section 14.07(a).

"Regular Record Date," with respect to any Interest Payment Date, shall mean the July 15 or
January 15 (whether or not such day is a Business Day) immediately preceding the applicable August 1 or February 1 Interest
Payment Date, respectively.

"Resale Restriction Termination Date" shall have the meaning specified in Section 2.05(c).

"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 Securities" shall have the meaning specified in Section 2.05(c).

"Rule 144" means Rule 144 as promulgated under the Securities Act.

"Rule 144A" means Rule 144A as promulgated under the Securities Act.

"Scheduled Trading Day" means a day that is scheduled to be a Trading Day on the principal U.S. national or
regional securities exchange or market on which the Common Stock is listed or admitted for trading.  If the Common Stock is not so listed or
admitted for trading, "Scheduled Trading Day" means a Business Day.

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

"Settlement Amount" has the meaning specified in Section
14.02(a)(iv).

"Settlement Method" means, with respect to any conversion of Notes, Physical Settlement, Cash
Settlement or Combination Settlement, as elected (or deemed to have been elected) by the Company.

"Settlement Notice" has the meaning specified in Section 14.02(a)(iii).

"Significant Subsidiary" means a Subsidiary of the Company that meets the definition of "significant
subsidiary" in Article 1, Rule 1-02 of Regulation S-X under the Exchange Act; provided that, for purposes of Section 6.01, in the
case of a Subsidiary that meets the criteria of clause (3) thereof but not clause (1) or (2) thereof, such Subsidiary shall not be a
"Significant Subsidiary" unless such Subsidiary's income (or loss) from continuing operations before income taxes, extraordinary
items and cumulative effect of changes in accounting principles exclusive of amounts attributable to any non-controlling interests for the last
completed fiscal year prior to the date of such determination exceeds $10.0 million.

                                              9

"Specified Dollar Amount" means the maximum cash amount per $1,000 principal amount of Notes to be received
upon conversion as specified in the Settlement Notice related to any converted Notes.

"Spin-Off" shall have the meaning specified in Section 14.04(c).

"Stock Price" shall have the meaning specified in Section 14.03(c).

"Subsidiary" means, with respect to any Person, any corporation, association, partnership or other business
entity of which more than 50% of the total voting power of shares of Capital Stock or other interests (including partnership interests) entitled
(without regard to the occurrence of any contingency) to vote in the election of directors, managers, general partners or trustees thereof is at
the time owned or controlled, directly or indirectly, by (i) such Person; (ii) such Person and one or more Subsidiaries of such Person; or (iii)
one or more Subsidiaries of such Person.

"Successor Company" shall have the meaning specified in Section 11.01(a).

"Trading Day" means a day on which (i) trading in the Common Stock (or other security for which a closing sale price
must be determined) generally occurs on The NASDAQ Global Select Market or, if the Common Stock (or such other security) is not then
listed on The NASDAQ Global Select Market, on the principal other U.S. national or regional securities exchange on which the Common
Stock (or such other security) is then listed or, if the Common Stock (or such other security) is not then listed on a U.S. national or regional
securities exchange, on the principal other market on which the Common Stock (or such other security) is then traded and (ii) a Last
Reported Sale Price for the Common Stock (or closing sale price for such other security) is available on such securities exchange or market;
provided that if the Common Stock (or such other security) is not so listed or traded, "Trading Day" means a
Business Day; and provided, further, that for purposes of determining amounts due upon conversion only, "Trading
Day" means a day on which (x) there is no Market Disruption Event and (y) trading in the Common Stock generally occurs on The
NASDAQ Global Select Market or, if the Common Stock is not then listed on The NASDAQ Global Select Market, on the principal other U.S.
national or regional securities exchange on which the Common Stock is then listed or, if the Common Stock is not then listed on a U.S.
national or regional securities exchange, on the principal other market on which the Common Stock is then listed or admitted for trading,
except that if the Common Stock is not so listed or admitted for trading, "Trading Day" means a Business Day.

"Trading Price" of the Notes on any date of determination means the average of the secondary market bid quotations
obtained by the Bid Solicitation Agent for $2,000,000 principal amount of Notes at approximately 3:30 p.m., New York City time, on such
determination date from three independent nationally recognized securities dealers the Company selects for this purpose; provided
that if three such bids cannot reasonably be obtained by the Bid Solicitation Agent but two such bids are obtained, then the average of the
two bids shall be used, and if only one such bid can reasonably be obtained by the Bid Solicitation Agent, that one bid shall be used. If the
Bid Solicitation Agent cannot reasonably obtain at least one bid for $2,000,000 principal amount of Notes from a nationally recognized
securities dealer on any determination date, then the Trading Price per $1,000 principal amount of Notes on such determination date shall be
deemed to be less than 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate.

                                              10

"transfer" shall have the meaning specified in Section 2.05(c).

"Trigger Event" shall have the meaning specified in Section 14.04(c).

"Trust Indenture Act" means the Trust Indenture Act of 1939, as amended, as it was in force at the date of execution
of this Indenture; provided, however, that in the event the Trust Indenture Act of 1939 is amended after the date hereof, the
term "Trust Indenture Act" shall mean, to the extent required by such amendment, the Trust Indenture Act of 1939, as so
amended.

"Trustee" means the Person named as the "Trustee" in the first paragraph of this Indenture until
a successor trustee shall have become such pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder.

"unit of Reference Property" shall have the meaning specified in Section 14.07(a).

"Valuation Period" shall have the meaning specified in Section 14.04(c).

Section 1.02.    References to Interest.  Unless the context otherwise requires, any reference to interest on, or in
respect of, any Note in this Indenture shall be deemed to include Additional Interest if, in such context, Additional Interest is, was or would be
payable pursuant to any of Section 4.06(d), Section 4.06(e) and Section 6.03. Unless the context otherwise requires, any express mention of
Additional Interest in any provision hereof shall not be construed as excluding Additional Interest in those provisions hereof where such
express mention is not made.

ARTICLE 2

Issue, Description, Execution, Registration and Exchange of Notes

Section 2.01.    Designation and Amount.  The Notes shall be designated as the
"1.50% Convertible Senior Notes due 2018." The aggregate principal amount of Notes that may be authenticated and delivered
under this Indenture is initially limited to $150,000,000, subject to Section 2.10 and except for Notes authenticated and delivered upon
registration or transfer of, or in exchange for, or in lieu of other Notes pursuant to Section 2.05, Section 2.06, Section 2.07, Section 10.04,
Section 14.02 and Section 15.04.

                                              11

Section 2.02.    Form of Notes.  The Notes and the Trustee's certificate of authentication to be borne by such
Notes shall be substantially in the respective forms set forth in Exhibit A, the terms and provisions of which shall constitute, and are hereby
expressly incorporated in and made a part of this Indenture.  To the extent applicable, the Company and the Trustee, by their execution and
delivery of this Indenture, expressly agree to such terms and provisions and to be bound thereby.

Any Global Note may be endorsed with or have incorporated in the text thereof such legends or recitals or changes not inconsistent with
the provisions of this Indenture as may be required by the Custodian or the Depositary, or as may be required to comply with any applicable
law or any regulation thereunder or with the rules and regulations of any securities exchange or automated quotation system upon which the
Notes may be listed or traded or designated for issuance or to conform with any usage with respect thereto, or to indicate any special
limitations or restrictions to which any particular Notes are subject.

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

Each Global Note shall represent such principal amount of the outstanding Notes as shall be specified therein and shall provide that it
shall represent the aggregate principal amount of outstanding Notes from time to time endorsed thereon and that the aggregate principal
amount of outstanding Notes represented thereby may from time to time be increased or reduced to reflect repurchases, cancellations,
conversions, transfers or exchanges permitted hereby.  Any endorsement of a Global Note to reflect the amount of any increase or decrease
in the amount of outstanding Notes represented thereby shall be made by the Trustee or the Custodian, at the direction of the Trustee, in
such manner and upon instructions given by the Holder of such Notes in accordance with this Indenture.  Payment of principal (including the
Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, a Global Note shall be made to the Holder of
such Note on the date of payment, unless a record date or other means of determining Holders eligible to receive payment is provided for
herein.

Section 2.03.    Date and
Denomination of Notes; Payments of Interest and Defaulted Amounts.

	
The Notes shall be issuable in registered form without coupons in
denominations of $1,000 principal amount and multiples thereof.  Each Note shall be dated the date of its authentication and shall bear
interest from the date specified on the face of such Note.  Accrued interest on the Notes shall be computed on the basis of a 360-day year
composed of twelve 30-day months and, for partial months, on the basis of actual days elapsed over a 30-day month.

	The Person in whose name any Note (or its Predecessor Note) is registered on the Note Register at the close of business on any
Regular Record Date with respect to any Interest Payment Date shall be entitled to receive the interest payable on such Interest Payment Date.

                                              12

Interest shall be payable at the office or agency of the Company maintained by the Company for such purposes in Minneapolis,
Minnesota, which shall initially be the office of the Trustee located in 608 Second Avenue South, N9303-121, Minneapolis, Minnesota, 55479,
or any other office or agency located in the United States of America so designated by the Trustee.  The Company shall pay interest (i) on
any Physical Notes (A) to Holders holding Physical Notes having an aggregate principal amount of $5,000,000 or less, by check mailed to the
Holders of these Notes at their address as it appears in the Note Register and (B) to Holders holding Physical Notes having an aggregate
principal amount of more than $5,000,000, either by check mailed to each such Holder or, upon application by such a Holder to the Note
Registrar not later than the relevant Regular Record Date, by wire transfer in immediately available funds to that Holder's account within the
United States, which application shall remain in effect until the Holder notifies, in writing, the Note Registrar to the contrary or (ii) on any
Global Note by wire transfer of immediately available funds to the account of the Depositary or its nominee.  

	Any Defaulted Amounts shall forthwith cease to be payable to the Holder on the relevant payment date but
shall accrue interest per annum at the rate borne by the Notes from, and including, such relevant payment date, and such Defaulted Amounts
together with such interest thereon shall be paid by the Company, at its election in each case, as provided in clause (i) or (ii) below:

	The Company may elect to make payment of any Defaulted Amounts to the Persons in whose names the
Notes (or their respective Predecessor Notes) are registered at the close of business on a special record date for the payment of such
Defaulted Amounts, which shall be fixed in the following manner.  The Company shall notify the Trustee in writing of the amount of the
Defaulted Amounts proposed to be paid on each Note and the date of the proposed payment (which shall be not less than 25 days after the
receipt by the Trustee of such notice, unless the Trustee shall consent to an earlier date), and at the same time the Company shall deposit
with the Trustee an amount of money equal to the aggregate amount to be paid in respect of such Defaulted Amounts or shall make
arrangements satisfactory to the Trustee for such deposit on or prior to the date of the proposed payment, such money when deposited to be
held in trust for the benefit of the Persons entitled to such Defaulted Amounts as in this clause provided.  Thereupon the Company shall fix a
special record date for the payment of such Defaulted Amounts which shall be not more than 15 days and not less than 10 days prior to the
date of the proposed payment, and not less than 10 days after the receipt by the Trustee of the notice of the proposed payment.  The
Company shall promptly notify the Trustee in writing of such special record date and the Trustee, in the name and at the expense of the
Company, shall cause notice of the proposed payment of such Defaulted Amounts and the special record date therefor to be delivered to
each Holder at its address as it appears in the Note Register, or by electronic means to the Depositary in the case of Global Notes, not less
than 10 days prior to such special record date.  Notice of the proposed payment of such Defaulted Amounts and the special record date
therefor having been so delivered, such Defaulted Amounts shall be paid to the Persons in whose names the Notes (or their respective
Predecessor Notes) are registered at the close of business on such special record date and shall no longer be payable pursuant to the
following clause (ii) of this Section 2.03(c).

                                              13

	The Company may make payment of any Defaulted Amounts in any other lawful manner not inconsistent
with the requirements of any securities exchange or automated quotation system on which the Notes may be listed or designated for
issuance, and upon such notice as may be required by such exchange or automated quotation system, if, after written notice given by the
Company to the Trustee of the proposed payment pursuant to this clause, such manner of payment shall be deemed practicable by the
Trustee.

Section 2.04.    Execution, Authentication and Delivery
of Notes.  The Notes shall be signed in the name and on behalf of the Company by the manual or facsimile signature of its Chief
Executive Officer, President, Chief Financial Officer, Treasurer, Secretary or any of its Executive or Senior Vice
Presidents.

At any time and from time to time after the execution and delivery of this Indenture, the Company may deliver Notes executed by the
Company to the Trustee for authentication, together with a Company Order for the authentication and delivery of such Notes, and the Trustee
in accordance with such Company Order shall authenticate and deliver such Notes, without any further action by the Company
hereunder.

Only such Notes as shall bear thereon a certificate of authentication substantially in the form set forth on the form of Note attached as
Exhibit A hereto, executed manually by an authorized signatory of the Trustee (or an authenticating agent appointed by the Trustee as
provided by Section 17.10), shall be entitled to the benefits of this Indenture or be valid or obligatory for any purpose.  Such certificate by the
Trustee (or such an authenticating agent) upon any Note executed by the Company shall be conclusive evidence that the Note so
authenticated has been duly authenticated and delivered hereunder and that the Holder is entitled to the benefits of this Indenture.

In case any Officer of the Company who shall have signed any of the Notes shall cease to be such Officer before the Notes so signed
shall have been authenticated and delivered by the Trustee, or disposed of by the Company, such Notes nevertheless may be authenticated
and delivered or disposed of as though the Person who signed such Notes had not ceased to be such Officer of the Company; and any Note
may be signed on behalf of the Company by such persons as, at the actual date of the execution of such Note, shall be the Officers of the
Company, although at the date of the execution of this Indenture any such Person was not such an Officer.

Section 2.05.    Exchange and Registration of Transfer of Notes; Restrictions on Transfer; Depositary.   

	The Company shall cause to be kept at the Corporate Trust Office a register (the register maintained in such
office or in any other office or agency of the Company designated pursuant to Section 4.02,
the "Note Register") in which, subject to such reasonable regulations as it may prescribe, the Company shall
provide for the registration of Notes and of transfers of Notes.  Such register shall be in written form or in any form capable of being converted
into written form within a reasonable period of time.  The Trustee is hereby initially appointed the "Note Registrar" for the
purpose of registering Notes and transfers of Notes as herein provided.  The Company may appoint one or more co-Note Registrars in
accordance with Section 4.02.

                                              14

Upon surrender for registration of transfer of any Note to the Note Registrar or any co-Note Registrar, and satisfaction of the
requirements for such transfer set forth in this Section 2.05, the Company shall execute, and the Trustee shall authenticate and deliver, in the
name of the designated transferee or transferees, one or more new Notes of any authorized denominations and of a like aggregate principal
amount and bearing such restrictive legends as may be required by this Indenture.

Notes may be exchanged for other Notes of any authorized denominations and of a like aggregate principal amount, upon surrender of
the Notes to be exchanged at any such office or agency maintained by the Company pursuant to Section 4.02.  Whenever any Notes are so
surrendered for exchange, the Company shall execute, and the Trustee shall authenticate and deliver, the Notes that the Holder making the
exchange is entitled to receive, bearing registration numbers not contemporaneously outstanding.

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

No service charge shall be imposed by the Company, the Trustee, the Note Registrar, any co-Note Registrar or the Paying Agent for any
exchange or registration of transfer of Notes, but the Company may require a Holder to pay a sum sufficient to cover any documentary, stamp
or similar issue or transfer tax required in connection therewith as a result of the name of the Holder of new Notes issued upon such
exchange or registration of transfer being different from the name of the Holder of the old Notes surrendered for exchange or registration of
transfer.

None of the Company, the Trustee, the Note Registrar or any co-Note Registrar shall be required to exchange or register a transfer of (i)
any Notes surrendered for conversion or, if a portion of any Note is surrendered for conversion, such portion thereof surrendered for
conversion or (ii) any Notes, or a portion of any Note, surrendered for repurchase (and not withdrawn) in accordance with Article 15.  

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

	So long as the Notes are eligible for book-entry settlement with the Depositary, unless otherwise required
by law, subject to the fourth paragraph from the end of Section 2.05(c) all Notes shall be represented by one or more Notes in global form
(each, a "Global Note") registered in the name of the Depositary or the nominee of the Depositary.  The transfer and
exchange of beneficial interests in a Global Note that does not involve the issuance of a Physical Note shall be effected through the
Depositary (but not the Trustee or the Custodian) in accordance with this Indenture (including the restrictions on transfer set forth herein) and
the procedures of the Depositary therefor.

                                              15

	Every Note that bears or is required under this Section 2.05(c) to bear the legend set forth in this Section
2.05(c) (together with any Common Stock issued upon conversion of the Notes that is required to bear the legend set forth in Section 2.05(d),
collectively, the "Restricted Securities") shall be subject to the restrictions on transfer set forth in this Section 2.05(c)
(including those contained in the legend set forth below), unless such restrictions on transfer shall be eliminated or otherwise waived by
written consent of the Company, and the Holder of each such Restricted Security, by such Holder's acceptance thereof, agrees to be bound
by all such restrictions on transfer.  As used in this Section 2.05(c) and Section 2.05(d), the term "transfer" encompasses
any sale, pledge, transfer or other disposition whatsoever of any Restricted Security.

Until the date (the "Resale Restriction Termination Date") that is the later of (1) the date that is one year after the last
date of original issuance of the Notes, or such shorter period of time as permitted by Rule 144 under the Securities Act or any successor
provision thereto, and (2) such later date, if any, as may be required by applicable law, any certificate evidencing such Note (and all securities
issued in exchange therefor or substitution thereof, other than Common Stock, if any, issued upon conversion thereof, which shall bear the
legend set forth in Section 2.05(d), if applicable) shall bear a legend in substantially the following form (unless such Notes have been
transferred pursuant to a registration statement that has become or been declared effective under the Securities Act and that continues to be
effective at the time of such transfer, or sold pursuant to the exemption from registration provided by Rule 144 or any similar provision then in
force under the Securities Act, or unless otherwise agreed by the Company in writing, with notice thereof to the Trustee):

THIS SECURITY AND THE COMMON STOCK, IF ANY, ISSUABLE UPON CONVERSION OF THIS SECURITY HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND MAY NOT
BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH THE FOLLOWING SENTENCE.
BY ITS ACQUISITION HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE ACQUIRER:

(1)REPRESENTS THAT IT AND ANY ACCOUNT FOR WHICH IT IS ACTING IS A "QUALIFIED INSTITUTIONAL
BUYER" (WITHIN THE MEANING OF RULE 144A UNDER THE SECURITIES ACT) AND THAT IT EXERCISES SOLE INVESTMENT
DISCRETION WITH RESPECT TO EACH SUCH ACCOUNT, AND

(2)AGREES FOR THE BENEFIT OF SERVICESOURCE INTERNATIONAL, INC. (THE "COMPANY") THAT IT
WILL NOT OFFER, SELL, PLEDGE OR OTHERWISE TRANSFER THIS SECURITY OR ANY BENEFICIAL INTEREST HEREIN PRIOR TO
THE DATE THAT IS THE LATER OF (X) ONE YEAR AFTER THE LAST ORIGINAL ISSUE DATE HEREOF OR SUCH SHORTER PERIOD
OF TIME AS PERMITTED BY RULE 144 UNDER THE SECURITIES ACT OR ANY SUCCESSOR PROVISION THERETO AND (Y) SUCH
LATER DATE, IF ANY, AS MAY BE REQUIRED BY APPLICABLE LAW, EXCEPT:

(A)TO THE COMPANY OR ANY SUBSIDIARY THEREOF, OR

                                              16

(B)PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BECOME EFFECTIVE UNDER THE SECURITIES ACT, OR

(C)TO A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT, OR

(D)PURSUANT TO AN EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT OR ANY
OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.

PRIOR TO THE REGISTRATION OF ANY TRANSFER IN ACCORDANCE WITH CLAUSE (2)(D) ABOVE, THE COMPANY AND THE
TRUSTEE RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH LEGAL OPINIONS, CERTIFICATIONS OR OTHER
EVIDENCE AS MAY REASONABLY BE REQUIRED IN ORDER TO DETERMINE THAT THE PROPOSED TRANSFER IS BEING MADE IN
COMPLIANCE WITH THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS. NO REPRESENTATION IS MADE AS TO
THE AVAILABILITY OF ANY EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.

No transfer of any Note prior to the Resale Restriction Termination Date will be registered by the Note Registrar unless the applicable box
on the Form of Assignment and Transfer has been checked.

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 may, upon surrender of such Note for exchange to the Note Registrar in accordance with the provisions of this
Section 2.05, be exchanged for a new Note or Notes, of like tenor and aggregate principal amount, which shall not bear the restrictive legend
required by this Section 2.05(c) and shall not be assigned a restricted CUSIP number. The
Company shall be entitled to instruct the Custodian in writing to so surrender any Global Note as to which such restrictions on transfer shall
have expired in accordance with their terms for exchange, and, upon such instruction, the Custodian shall so surrender such Global Note for
exchange; and any new Global Note so exchanged therefor shall not bear the restrictive legend specified in this Section
2.05(c) and shall not be assigned a restricted CUSIP number.  The Company shall
promptly notify the Trustee in writing upon the occurrence of the Resale Restriction Termination Date and promptly after a registration
statement, if any, with respect to the Notes or any Common Stock issued upon conversion of the Notes has been declared effective under the
Securities Act.

Notwithstanding any other provisions of this Indenture (other than the provisions set forth in this Section 2.05(c)), a Global Note may not
be transferred as a whole or in part except (i) 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 and (ii) for transfers of portions of a Global Note in certificated form made upon request of a member of, or a participant
in, the Depositary (for itself or on behalf of a beneficial owner) by written notice given to the Trustee

                                              17

by or on behalf of the Depositary in accordance with customary procedures of the Depositary and in compliance with this Section 2.05(c).

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

If (i) the Depositary notifies the Company at any time that the Depositary is unwilling or unable to continue as depositary for the Global
Notes and a successor depositary is not appointed within 90 days, (ii) the Depositary ceases to be registered as a clearing agency under the
Exchange Act and a successor depositary is not appointed within 90 days or (iii) an Event of Default with respect to the Notes has occurred
and is continuing and a beneficial owner of any Note requests that its beneficial interest therein be issued as a Physical Note, the Company
shall execute, and the Trustee, upon receipt of an Officer's Certificate and a Company Order for the authentication and delivery of Notes,
shall authenticate and deliver (x) in the case of clause (iii), a Physical Note to such beneficial owner in a principal amount equal to the
principal amount of such Note corresponding such beneficial owner's beneficial interest and (y) in the case of clause (i) or (ii), Physical Notes
to each beneficial owner of the related Global Notes (or a portion thereof) in an aggregate principal amount equal to the aggregate principal
amount of such Global Notes in exchange for such Global Notes, and upon delivery of the Global Notes to the Trustee such Global Notes
shall be canceled.

Physical Notes issued in exchange for all or a part of the Global Note pursuant to this Section 2.05(c) shall be registered in such names
and in such authorized denominations as the Depositary, pursuant to instructions from its direct or indirect participants or otherwise, shall
instruct the Trustee.  Upon execution and authentication, the Trustee shall deliver such Physical Notes to the Persons in whose names such
Physical Notes are so registered.

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

None of the Company, the Trustee or any agent of the Company or the Trustee shall have any responsibility or liability for any aspect of
the records relating to or payments made on account of beneficial ownership interests of a Global Note or maintaining, supervising or
reviewing any records relating to such beneficial ownership interests. Neither the Trustee nor any agent of the Trustee shall have any
responsibility or liability for any actions taken or not taken by the Depositary.  

                                              18

	Until the Resale Restriction Termination Date, any stock certificate representing Common Stock issued
upon conversion of such Note shall bear a legend in substantially the following form (unless the Note or such Common Stock has been
transferred pursuant to a registration statement that has become or been declared effective under the Securities Act and that continues to be
effective at the time of such transfer, or pursuant to the exemption from registration provided by Rule 144 or any similar provision then in
force under the Securities Act, or such Common Stock has been issued upon conversion of Notes that have been transferred pursuant to a
registration statement that has become or been declared effective under the Securities Act and that continues to be effective at the time of
such transfer, or pursuant to the exemption from registration provided by Rule 144 or any similar provision then in force under the Securities
Act, or unless otherwise agreed by the Company with written notice thereof to the Trustee and any transfer agent for the Common
Stock):

THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
"SECURITIES ACT"), AND MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN
ACCORDANCE WITH THE FOLLOWING SENTENCE. BY ITS ACQUISITION HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE
ACQUIRER:

(1)REPRESENTS THAT IT AND ANY ACCOUNT FOR WHICH IT IS ACTING IS A "QUALIFIED INSTITUTIONAL
BUYER" (WITHIN THE MEANING OF RULE 144A UNDER THE SECURITIES ACT) AND THAT IT EXERCISES SOLE INVESTMENT
DISCRETION WITH RESPECT TO EACH SUCH ACCOUNT, AND 

(2)AGREES FOR THE BENEFIT OF SERVICESOURCE INTERNATIONAL, INC. (THE "COMPANY") THAT IT
WILL NOT OFFER, SELL, PLEDGE OR OTHERWISE TRANSFER THIS SECURITY OR ANY BENEFICIAL INTEREST HEREIN PRIOR TO
THE DATE THAT IS THE LATER OF (X) ONE YEAR AFTER THE LAST ORIGINAL ISSUE DATE OF THE SERIES OF NOTES UPON THE
CONVERSION OF WHICH THIS SECURITY WAS ISSUED OR SUCH SHORTER PERIOD OF TIME AS PERMITTED BY RULE 144
UNDER THE SECURITIES ACT OR ANY SUCCESSOR PROVISION THERETO AND (Y) SUCH LATER DATE, IF ANY, AS MAY BE
REQUIRED BY APPLICABLE LAW, EXCEPT:

(A)TO THE COMPANY OR ANY SUBSIDIARY THEREOF, OR

(B)PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BECOME EFFECTIVE UNDER THE SECURITIES ACT,
OR

(C)TO A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT, OR

(D)PURSUANT TO AN EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT OR ANY
OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.

                                              19

PRIOR TO THE REGISTRATION OF ANY TRANSFER IN ACCORDANCE WITH CLAUSE (2)(D) ABOVE, THE COMPANY AND THE
TRANSFER AGENT FOR THE COMPANY'S COMMON STOCK RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH LEGAL
OPINIONS, CERTIFICATIONS OR OTHER EVIDENCE AS MAY REASONABLY BE REQUIRED IN ORDER TO DETERMINE THAT THE
PROPOSED TRANSFER IS BEING MADE IN COMPLIANCE WITH THE SECURITIES ACT AND APPLICABLE STATE SECURITIES
LAWS. NO REPRESENTATION IS MADE AS TO THE AVAILABILITY OF ANY EXEMPTION FROM THE REGISTRATION
REQUIREMENTS OF THE SECURITIES ACT.

Any such Common Stock as to which such restrictions on transfer shall have expired in accordance with their terms 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 aggregate number of shares of Common Stock, which shall not
bear the restrictive legend required by this Section 2.05(d).

	Any Note or Common Stock issued upon the conversion or exchange of a Note that is repurchased or owned by any Affiliate of the
Company (or any Person who was an Affiliate of the Company at any time during the three months preceding) may not be resold by such
Affiliate (or such Person, as the case may be) 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 Note or Common Stock, as the case may be, no longer
being a "restricted security" (as defined under Rule 144 under the Securities Act).  The Company shall cause any Note that is
repurchased or owned by it to be surrendered to the Trustee for cancellation in accordance with Section 2.08.  

Section 2.06.     Mutilated,
Destroyed, Lost or Stolen Notes.  In case any Note shall become mutilated or be destroyed, lost or stolen, the Company in its discretion
may execute, and upon its written request the Trustee or an authenticating agent appointed by the Trustee shall authenticate and deliver, a
new Note, bearing a registration number not contemporaneously outstanding, in exchange and substitution for the mutilated Note, or in lieu of
and in substitution for the Note so destroyed, lost or stolen.  In every case the applicant for a substituted Note shall furnish to the Company,
to the Trustee and, if applicable, to such authenticating agent such security or indemnity as may be required by them to save each of them
harmless from any loss, liability, cost or expense caused by or connected with such substitution, and, in every case of destruction, loss or
theft, the applicant shall also furnish to the Company, to the Trustee and, if applicable, to such authenticating agent evidence to their
satisfaction of the destruction, loss or theft of such Note and of the ownership thereof.

The Trustee or such authenticating agent may authenticate any such substituted Note and deliver the same upon the receipt of such
security or indemnity as the Trustee, the Company and, if applicable, such authenticating agent may require.  No service charge shall be
imposed by the Company, the Trustee, the Note Registrar, any co-Note Registrar or the Paying Agent upon the issuance of any substitute
Note, but the Company may require a Holder to pay a sum sufficient to cover any documentary, stamp or similar issue or transfer tax required
in connection therewith as a result of the name of the Holder of the new substitute Note being different from the name of

                                              20

the Holder of the old Note that became mutilated or was destroyed, lost or stolen.  In case any Note that has matured or is about to mature or has been
surrendered for required repurchase or is about to be converted in accordance with Article 14 shall become mutilated or be destroyed, lost or
stolen, the Company may, in its sole discretion, instead of issuing a substitute Note, pay or authorize the payment of or convert or authorize
the conversion of the same (without surrender thereof except in the case of a mutilated Note), as the case may be, if the applicant for such
payment or conversion shall furnish to the Company, to the Trustee and, if applicable, to such authenticating agent such security or indemnity
as may be required by them to save each of them harmless for any loss, liability, cost or expense caused by or connected with such
substitution, and, in every case of destruction, loss or theft, evidence satisfactory to the Company, the Trustee and, if applicable, any Paying
Agent or Conversion Agent of the destruction, loss or theft of such Note and of the ownership thereof.

Every substitute Note issued pursuant to the provisions of this Section 2.06 by virtue of the fact that any Note is destroyed, lost or stolen
shall constitute an additional contractual obligation of the Company, whether or not the destroyed, lost or stolen Note shall be found at any
time, and shall be entitled to all the benefits of (but shall be subject to all the limitations set forth in) this Indenture equally and proportionately
with any and all other Notes duly issued hereunder.  To the extent permitted by law, all Notes shall be held and owned upon the express
condition that the foregoing provisions are exclusive with respect to the replacement or payment or conversion or repurchase of mutilated,
destroyed, lost or stolen Notes and shall preclude any and all other rights or remedies notwithstanding any law or statute existing or hereafter
enacted to the contrary with respect to the replacement or payment or conversion of negotiable instruments or other securities without their
surrender.

Section 2.07.    Temporary Notes.  Pending the preparation of Physical Notes, the
Company may execute and the Trustee or an authenticating agent appointed by the Trustee shall, upon receipt of a Company Order,
authenticate and deliver temporary Notes (printed or lithographed).  Temporary Notes shall be issuable in any authorized denomination, and
substantially in the form of the Physical Notes but with such omissions, insertions and variations as may be appropriate for temporary Notes,
all as may be determined by the Company.  Every such temporary Note shall be executed by the Company and authenticated by the Trustee
or such authenticating agent upon the same conditions and in substantially the same manner, and with the same effect, as the Physical
Notes.  Without unreasonable delay, the Company shall execute and deliver to the Trustee or such authenticating agent Physical Notes
(other than any Global Note) and thereupon any or all temporary Notes (other than any Global Note) may be surrendered in exchange
therefor, at each office or agency maintained by the Company pursuant to Section 4.02 and the Trustee or such authenticating agent shall
authenticate and deliver in exchange for such temporary Notes an equal aggregate principal amount of Physical Notes.  Such exchange shall
be made by the Company at its own expense and without any charge therefor.  Until so exchanged, the temporary Notes shall in all respects
be entitled to the same benefits and subject to the same limitations under this Indenture as Physical Notes authenticated and delivered
hereunder.

Section 2.08.    Cancellation of Notes Paid, Converted,
Etc.  The Company shall cause all Notes surrendered for the purpose of payment, repurchase, registration of transfer or exchange or
conversion, if surrendered to any Person other than the Trustee (including any of the Company's

                                              21

agents, Subsidiaries or Affiliates), to be
surrendered to the Trustee for cancellation.  All Notes delivered to the Trustee shall be canceled promptly by it, and no Notes shall be
authenticated in exchange therefor except as expressly permitted by any of the provisions of this Indenture.  The Trustee shall dispose of
canceled Notes in accordance with its customary procedures and, after such disposition, shall deliver a certificate of such disposition to the
Company, at the Company's written request in a Company Order.  

Section 2.09.    CUSIP Numbers.  The Company in issuing the Notes may use
"CUSIP" numbers (if then generally in use), and, if so, the Trustee shall use "CUSIP" numbers in all notices issued to
Holders as a convenience to such 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 on such notice and that reliance may be placed only on the other identification
numbers printed on the Notes.  The Company shall promptly notify the Trustee in writing of any change in the "CUSIP"
numbers.

Section 2.10.    Additional Notes; Repurchases.
The Company may, without the consent of the Holders and notwithstanding Section 2.01, reopen this Indenture and issue additional Notes
hereunder with the same terms as the Notes initially issued hereunder (other than differences in the issue price, isssue date and interest
accrued prior to the issue date of such additional Notes) in an unlimited aggregate principal amount; provided that if any such
additional Notes are not fungible with the Notes initially issued hereunder for U.S. federal income tax purposes, such additional Notes shall
have one or more separate CUSIP numbers.  Prior to the issuance of any such additional Notes, the Company shall deliver to the Trustee a
Company Order, an Officer's Certificate and an Opinion of Counsel, such Officer's Certificate and Opinion of Counsel to cover such matters,
in addition to those required by Section 17.05, as the Trustee shall reasonably request.  In addition, the Company may, to the extent
permitted by law, and directly or indirectly (regardless of whether such Notes are surrendered to the Company), repurchase Notes in the open
market or otherwise, whether by the Company or its Subsidiaries or through a private or public tender or exchange offer or through
counterparties to private agreements, including by cash-settled swaps or other derivatives.  The Company shall cause any Notes so
repurchased (other than Notes repurchased pursuant to cash-settled swaps or other derivatives) to be surrendered to the Trustee for
cancellation in accordance with Section 2.08.

ARTICLE 3

Satisfaction and Discharge

Section 3.01.    Satisfaction and Discharge.  This Indenture shall upon request of the Company contained in an
Officer's Certificate cease to be of further effect, and the Trustee, at the expense of the Company, shall execute proper instruments
acknowledging satisfaction and discharge of this Indenture, when  (i) all Notes theretofore authenticated and delivered (other than (x) Notes
which have been destroyed, lost or stolen and which have been replaced or paid as provided in Section 2.06 and (y) Notes for whose
payment money has theretofore been deposited in trust or segregated and held in trust by the Company and thereafter repaid to the
Company or discharged from such trust, as provided in Section 4.04(d)) have been delivered to the Trustee for cancellation; or (ii) the
Company has deposited with the Trustee or delivered to Holders, as

                                              22

applicable, after the Notes have become due and payable, whether on
the Maturity Date, any Fundamental Change Repurchase Date, upon conversion or otherwise, cash or cash, shares of Common Stock or a
combination thereof, as applicable, solely to satisfy the Company's Conversion Obligation, sufficient to pay all of the outstanding Notes and
all other sums due and payable under this Indenture by the Company; and  the Company has delivered to the Trustee an Officer's Certificate
and an Opinion of Counsel, each stating that all conditions precedent herein provided for relating to the satisfaction and discharge of this
Indenture have been complied with.  Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the Company to the
Trustee under Section 7.06 shall survive.

ARTICLE 4

Particular Covenants of the Company

Section 4.01.    Payment of Principal and Interest.  The Company covenants and
agrees that it will cause to be paid the principal (including the Fundamental Change Repurchase Price, if applicable) of, and accrued and
unpaid interest on, each of the Notes at the places, at the respective times and in the manner provided herein and in the Notes.

Section 4.02.    Maintenance of Office or Agency.  The Company will maintain in
Minneapolis, Minnesota, or any other office or agency in the United States of America so designated by the Trustee, an office or agency
where the Notes may be surrendered for registration of transfer or exchange or for presentation for payment or repurchase ("Paying
Agent") or for conversion ("Conversion Agent") and where notices and demands to or upon the Company in
respect of the Notes and this Indenture may be served.  The Company will give prompt written notice to the Trustee of the location, and any
change in the location, of such office or agency.  If at any time the Company shall fail to maintain any such required office or agency or shall
fail to furnish the Trustee with the address thereof, such presentations, surrenders, notices and demands may be made or served at the
Corporate Trust Office or the office or agency of the Trustee in Minneapolis, Minnesota, or any other office or agency in the United States of
America so designated by the Trustee as a place where Notes may be presented for payment or for registration of
transfer.

The Company may also from time to time designate as co-Note Registrars one or more other offices or agencies where the Notes may
be presented or surrendered for any or all such purposes and may from time to time rescind such designations; provided that no such
designation or rescission shall in any manner relieve the Company of its obligation to maintain an office or agency in the United States of
America so designated by the Trustee as a place for such purposes.  The Company will give prompt written notice to the Trustee of any such
designation or rescission and of any change in the location of any such other office or agency.  The terms "Paying Agent"
and "Conversion Agent" include any such additional or other offices or agencies, as applicable.

The Company hereby initially designates the Trustee as the Paying Agent, Note Registrar, Custodian and Conversion Agent and the
Corporate Trust Office as the office or agency in the United States of America where Notes may be surrendered for registration of transfer or

                                              23

exchange or for presentation for payment or repurchase or for conversion and where notices and demands to or upon the Company in
respect of the Notes and this Indenture may be served.  

Section 4.03.    Appointments to Fill Vacancies in Trustee's Office.  The Company, whenever necessary to avoid
or fill a vacancy in the office of Trustee, will appoint, in the manner provided in Section 7.09, a Trustee, so that there shall at all times be a
Trustee hereunder.

Section 4.04.    Provisions as to Paying Agent.

	If the Company shall appoint a Paying
Agent other than the Trustee, the Company will cause such Paying Agent to execute and deliver to the Trustee an instrument in which such
agent shall agree with the Trustee, subject to the provisions of this Section 4.04:

	that it will hold all sums held by it as such agent for the payment of the principal (including the Fundamental Change Repurchase Price, if
applicable) of, and accrued and unpaid interest on, the Notes in trust for the benefit of the Holders of the Notes;

	that it will give the Trustee prompt written notice of any failure by the Company to make any payment of the principal (including the
Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, the Notes when the same shall be due and
payable; and

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

The Company shall, on or before each due date of the principal (including the Fundamental Change Repurchase Price, if applicable) of,
or accrued and unpaid interest on, the Notes, deposit with the Paying Agent a sum sufficient to pay such principal (including the Fundamental
Change Repurchase Price, if applicable) or accrued and unpaid interest, and (unless such Paying Agent is the Trustee) the Company will
promptly notify the Trustee of any failure to take such action; provided that if such deposit is made on the due date, such deposit must
be received by the Paying Agent by 11:00 a.m., New York City time, on such date.

	If the Company shall act as its own Paying Agent, it will, on or before each due date of the principal (including the Fundamental Change
Repurchase Price, if applicable) of, and accrued and unpaid interest on, the Notes, set aside, segregate and hold in trust for the benefit of the
Holders of the Notes a sum sufficient to pay such principal (including the Fundamental Change Repurchase Price, if applicable) and accrued
and unpaid interest so becoming due and will promptly notify the Trustee in writing of any failure to take such action and of any failure by the
Company to make any payment of the principal (including the Fundamental Change Repurchase Price, if applicable) of, or accrued and
unpaid interest on, the Notes when the same shall become due and payable.

	Anything in this Section 4.04 to the contrary notwithstanding, the Company may, at any time, for the purpose of obtaining a satisfaction
and discharge of this Indenture, or for any other reason, pay, cause to be paid or deliver to the Trustee all sums or amounts held in trust by
the Company or any Paying Agent hereunder as required by this Section 4.04, such sums or amounts to be held by the Trustee upon the
trusts herein contained and upon such payment or

                                              24

delivery by the Company or any Paying Agent to the Trustee, the Company or such
Paying Agent shall be released from all further liability but only with respect to such sums or amounts. 

	Any money and shares of Common Stock deposited with the Trustee or any Paying Agent, or then held by
the Company, in trust for the payment of the principal (including the Fundamental Change Repurchase Price, if applicable) of, accrued and
unpaid interest on and the consideration due upon conversion of any Note and remaining unclaimed for two years after such principal
(including the Fundamental Change Repurchase Price, if applicable), interest or consideration due upon conversion has become due and
payable shall be paid to the Company on request of the Company contained in an Officer's Certificate, or (if then held by the Company) shall
be discharged from such trust; and the Holder of such Note shall thereafter, as an unsecured general creditor, look only to the Company for
payment thereof, and all liability of the Trustee or such Paying Agent with respect to such trust money and shares of Common Stock, and all
liability of the Company as trustee thereof, shall thereupon cease.

Section 4.05.    Existence.  Subject to Article 11, the Company shall do or cause to be done all things necessary
to preserve and keep in full force and effect its corporate existence.

Section 4.06.    Rule 144A Information Requirement and Annual Reports.  

	At any time the Company is not subject to Section 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, upon written request, any
Holder, beneficial owner or prospective purchaser of such Notes or any shares of Common Stock issuable upon conversion of such 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. The Company shall take such further action as any Holder or beneficial owners of such Notes
may reasonably request to the extent from time to time required to enable such Holder or beneficial owner to sell such Notes or shares of
Common Stock in accordance with Rule 144A, as such rule may be amended from time to time.

	The Company shall file with the Trustee, within 15 days after the same are required to be filed with the
Commission (giving effect to any grace period provided by Rule 12b-25 under the Exchange Act), copies of any documents or reports that the
Company is required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act (excluding any such information,
documents or reports, or portions thereof, subject to confidential treatment and any correspondence with the Commission).  Any such
document or report that the Company files with the Commission via the Commission's EDGAR system shall be deemed to be filed with the
Trustee for purposes of this Section 4.06(b) at the time such documents are filed via the EDGAR system, it being understood that the Trustee
shall not be responsible for determining whether such filings have been made.  

	Delivery of the reports and documents described in subsection (b) above 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 conclusively rely on an Officer's Certificate). The Trustee

                                              25

shall have no liability or responsibility for the filing, timeliness or content of any report required hereunder.  

	If, at any time during the six-month period beginning on, and including, the date that is six months after the
last date of original issuance of the Notes, the Company fails to timely file any document or report that it is required to file with the
Commission pursuant to Section 13 or 15(d) of the Exchange Act, as applicable (after giving effect to all applicable grace periods thereunder
and other than reports on Form 8-K), or the Notes are not otherwise freely tradable by Holders other than the Company's Affiliates or Holders
that were the Company's Affiliates at any time during the three months preceding (as a result of restrictions pursuant to U.S. securities laws
or the terms of this Indenture or the Notes), the Company shall pay Additional Interest on the Notes.  Such Additional Interest shall accrue on
the Notes at the rate of 0.50% per annum of the principal amount of the Notes outstanding for each day during such period for which the
Company's failure to file has occurred and is continuing or the Notes are not otherwise freely tradable by Holders other than the Company's
Affiliates (or Holders that have been the Company's Affiliates at any time during the three months preceding) without restrictions pursuant to
U.S. securities laws or the terms of this Indenture or the Notes.  As used in this Section 4.06(d), documents or reports that the Company is
required to "file" with the Commission pursuant to Section 13 or 15(d) of the Exchange Act does not include documents or reports
that the Company furnishes to the Commission pursuant to Section 13 or 15(d) of the Exchange Act.  

	If, and for so long as, the restrictive legend on the Notes specified in Section 2.05(c) has not been
removed (or deemed removed pursuant to this Indenture), the Notes are assigned a restricted CUSIP number or the Notes are not otherwise
freely tradable by Holders other than the Company's Affiliates or Holders that were the Company's Affiliates at any time during the three
months preceding (without restrictions pursuant to U.S. securities laws or the terms of this Indenture or the Notes) as of the 380th day after
the last date of original issuance of the Notes, the Company shall pay Additional Interest on the Notes at a rate equal to 0.50% per annum of
the principal amount of Notes outstanding until the restrictive legend on the Notes has been removed in accordance with Section 2.05(c) (or
deemed removed pursuant to this Indenture), the Notes are assigned an unrestricted CUSIP and the Notes are freely tradable by Holders
other than the Company's Affiliates (or Holders that were the Company's Affiliates at any time during the three months preceding) (without
restrictions pursuant to U.S. securities laws or the terms of this Indenture or the Notes).  

	Additional Interest will be payable in arrears on each Interest Payment Date following accrual in the same manner as regular interest on
the Notes.  

	The Additional Interest that is payable in accordance with Section 4.06(d) or Section 4.06(e) shall be in addition to, and not in lieu of, any
Additional Interest that may be payable as a result of the Company's election pursuant to Section 6.03. Notwithstanding the foregoing, in no
event shall Additional Interest accrue under the terms of this Indenture (aggregating any Additional Interest payable pursuant to Section
4.06(d) or Section 4.06(e)with any Additional Interest payable pursuant to Section 6.03) at a rate per year in excess of 0.50%, regardless of
the number of events or circumstances giving rise to the requirement to pay such Additional Interest.

                                              26

	If Additional Interest is payable by the Company pursuant to Section 4.06(d) or Section 4.06(e), the Company shall deliver to the Trustee
an Officer's Certificate to that effect stating (i) the amount of such Additional Interest that is payable and (ii) the date on which such Additional
Interest is payable.  Unless and until a Responsible Officer of the Trustee receives at the Corporate Trust Office 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 an Officer's Certificate setting forth the particulars of such
payment.

Section 4.07.    Stay, Extension and Usury Laws.  The Company covenants (to the extent that it may lawfully do
so) that it shall not at any time insist upon, plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay, extension
or usury law or other law that would prohibit or forgive the Company from paying all or any portion of the principal of or interest on the Notes
as contemplated herein, wherever enacted, now or at any time hereafter in force, or that may affect the covenants or the performance of this
Indenture; and the Company (to the extent it may lawfully do so) hereby expressly waives all benefit or advantage of any such law, and
covenants that it will not, by resort to any such law, hinder, delay or impede the execution of any power herein granted to the Trustee, but will
suffer and permit the execution of every such power as though no such law had been enacted.

Section 4.08.  
Compliance Certificate; Statements as to Defaults.  The Company shall deliver to the Trustee within 120 days after the end of each fiscal
year of the Company (beginning with the fiscal year ending on December 31, 2013) an Officer's Certificate stating whether the signers thereof
have knowledge of any failure by the Company to comply with all conditions and covenants then required to be performed under this
Indenture and, if so, specifying each such failure and the nature thereof.

In addition, the Company shall deliver to the Trustee promptly and in any event within 30 days after the occurrence of any Event of
Default or Default, an Officer's Certificate setting forth the details of such Event of Default or Default, its status and the action that the
Company is taking or proposing to take in respect thereof.

Section 4.09.    Further Instruments and Acts.  Upon request of the Trustee, the Company will execute and
deliver such further instruments and do such further acts as may be reasonably necessary or proper to carry out more effectively the
purposes of this Indenture.

ARTICLE 5

Lists of Holders and Reports by the Company and the Trustee

Section 5.01.    Lists of Holders.  The Company
covenants and agrees that it will upon request from the Trustee furnish or cause to be furnished to the Trustee, semi-annually, not more than
15 days after each August 1 and February 1 in each year beginning with February 1, 2014, and at such other times as the
Trustee may request in writing, within 30 days after receipt by the Company of any such request (or such lesser time as the Trustee may
reasonably request in order to enable it to timely provide any notice to be provided by it hereunder), a list in such form as the Trustee may
reasonably require of the names and addresses of the Holders as of a date not more

                                              27

than 15 days (or such other date as the Trustee may
reasonably request in order to so provide any such notices) prior to the time such information is furnished, except that no such list need be
furnished so long as the Trustee is acting as Note Registrar.

Section 5.02.    Preservation and Disclosure of Lists.  The Trustee shall preserve, in as current a form as is
reasonably practicable, all information as to the names and addresses of the Holders contained in the most recent list furnished to it as
provided in Section 5.01 or maintained by the Trustee in its capacity as Note Registrar, if so acting.  The Trustee may destroy any list
furnished to it as provided in Section 5.01 upon receipt of a new list so furnished.

ARTICLE 6

Defaults and Remedies

Section 6.01.    Events of Default.  Each of the following
events shall be an "Event of Default" with respect to the Notes:

	default in any payment of interest on any Note when due and payable, and the default continues for a
period of 30 days;

	default in the payment of principal of any Note when due and payable on the Maturity Date, upon any
required repurchase, upon declaration of acceleration or otherwise;

	failure by the Company to comply with its obligation to convert the Notes in accordance with this Indenture upon exercise of a Holder's
conversion right, and such failure continues for three Business Days;

	failure by the Company to issue a Fundamental Change Company Notice in accordance with Section 15.02(c) or notice of a specified corporate event in accordance with Section 14.01(b)(ii) or (iii), in each case when
due;

	failure by the Company to comply with its obligations under Article 11;

	failure by the Company for 60 days after written notice from the Trustee or the Holders of at least 25% in
principal amount of the Notes then outstanding has been received by the Company to comply with any of its other agreements contained in
the Notes or this Indenture;

	default by the Company or any Significant Subsidiary of the Company with respect to any mortgage, agreement or other instrument
under which there may be outstanding, or by which there may be secured or evidenced, any indebtedness for money borrowed in excess of
$25,000,000 (or its foreign currency equivalent) in the aggregate of the Company and/or any such Subsidiary, whether such indebtedness
now exists or shall hereafter be created (i) resulting in such indebtedness becoming or being declared due and payable or (ii) constituting a
failure to pay the principal of any such indebtedness when due and payable at its stated maturity, upon required repurchase, upon declaration
of acceleration or otherwise and, in the case of clauses (i) and (ii) above, such default is not cured or waived, such acceleration is not
rescinded or such indebtedness is not paid or discharged, as the case may be, within 30 days after written notice to

                                              28

the Company by the Trustee or to the Company and the Trustee by Holders of at least 25% in aggregate principal amount of Notes then outstanding in
accordance with this Indenture; or

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

	an involuntary case or other proceeding shall be commenced against the Company or any Significant
Subsidiary seeking liquidation, reorganization or other relief with respect to the Company or such Significant Subsidiary or its debts under any
bankruptcy, insolvency or other similar law now or hereafter in effect or seeking the appointment of a trustee, receiver, liquidator, custodian or
other similar official of the Company or such Significant Subsidiary or any substantial part of its property, and such involuntary case or other
proceeding shall remain undismissed and unstayed for a period of 30 consecutive days.

Section 6.02.    Acceleration; Rescission and Annulment.  If one or more Events of
Default shall have occurred and be continuing (whatever the reason for such Event of Default and whether it shall be voluntary or involuntary
or be effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation of any
administrative or governmental body), then, and in each and every such case (other than an Event of Default specified in Section 6.01(h) or
Section 6.01(i) with respect to the Company), unless the principal of all of the Notes shall have already become due and payable, either the
Trustee or the Holders of at least 25% in aggregate principal amount of the Notes then outstanding determined in accordance with Section
8.04, by notice in writing to the Company (and to the Trustee if given by Holders), may declare 100% of the principal of, and accrued and
unpaid interest on, all the Notes to be due and payable immediately, and upon any such declaration the same shall become and shall
automatically be immediately due and payable, anything in this Indenture or in the Notes contained to the contrary notwithstanding.  If an
Event of Default specified in Section 6.01(h) or Section 6.01(i) with respect to the Company occurs and is continuing, 100% of the principal of,
and accrued and unpaid interest, if any, on, all Notes shall become and shall automatically be immediately due and payable.

The immediately preceding paragraph, however, is subject to the conditions that if, at any time after the principal of the Notes shall have
been so declared due and payable, and before any judgment or decree for the payment of the monies due shall have been obtained or
entered as hereinafter provided, the Company shall pay or shall deposit with the Trustee a sum sufficient to pay installments of accrued and
unpaid interest upon all Notes and the principal of any and all Notes that shall have become due otherwise than by acceleration (with interest
on overdue installments of accrued and unpaid interest, and on such principal at the rate borne by the Notes at such time) and amounts due
to the Trustee pursuant to Section 7.06, and if (1) rescission would not conflict with any judgment or decree of a court of competent jurisdiction and (2) any

                                              29

and all existing Events of Default under this Indenture, other than the nonpayment of the principal of and accrued and
unpaid interest, if any, on Notes that shall have become due solely by such acceleration, shall have been cured or waived pursuant to Section
6.09, then and in every such case (except as provided in the immediately succeeding sentence) the Holders of a majority in aggregate
principal amount of the Notes then outstanding, by written notice to the Company and to the Trustee, may waive all Defaults or Events of
Default with respect to the Notes and rescind and annul such declaration and its consequences and such Default shall cease to exist, and
any Event of Default arising therefrom shall be deemed to have been cured for every purpose of this Indenture; but no such waiver or
rescission and annulment shall extend to or shall affect any subsequent Default or Event of Default, or shall impair any right consequent
thereon.  Notwithstanding anything to the contrary herein, no such waiver or rescission and annulment shall extend to or shall affect any
Default or Event of Default resulting from (i) the nonpayment of the principal of, or accrued and unpaid interest on, any Notes, (ii) a failure to
repurchase any Notes when required or (iii) a failure to pay or deliver, as the case may be, the consideration due upon conversion of the
Notes.

Section 6.03.    Additional
Interest.  Notwithstanding anything in this Indenture or in the Notes to the contrary, to the extent the Company elects, the sole remedy for
an Event of Default relating to the Company's failure to comply with its obligations as set forth in Section 4.06(b) shall, for the first 360 days after the occurrence of such an Event of Default, consist exclusively of the right to receive
Additional Interest on the Notes at a rate equal to (i) 0.25% per annum of the principal amount of the Notes outstanding for each day
during the first 180 calendar days after the occurrence of such an Event of Default during which such Event of Default is continuing (or, if
earlier, the date on which such Event of Default is cured or waived as provided for in this Indenture) and (ii) 0.50% per annum of the principal amount of the Notes outstanding for each day from, and including, the
181st calendar day to, but excluding, the 360th calendar day after the occurrence of such an Event of Default during which such Event of
Default is continuing (or, if earlier, the date on which such Event of Default is cured or waived as provided for in this Indenture). Additional
Interest payable pursuant to this Section 6.03 shall be in addition to, not in lieu of, any Additional Interest payable pursuant to
Section 4.06(d) or Section 4.06(e). If the Company so elects, such Additional Interest
shall be payable in the same manner and on the same dates as regular interest on the Notes.  On the 361st day after such Event of Default
(if the Event of Default relating to the Company's failure to comply with its obligations as set forth in Section 4.06(b) is not cured or waived
prior to such 361st day), the Notes shall be immediately subject to acceleration as provided in Section 6.02.  In the event the Company does not elect to pay Additional Interest following an Event of Default in
accordance with this Section 6.03 or the Company elected to make such payment but does not pay the Additional Interest when due, the
Notes shall be immediately subject to acceleration as provided in Section 6.02.

In order to elect to pay Additional Interest as the sole remedy during the first 360 days after the occurrence of any Event of Default
described in the immediately preceding paragraph, the Company must notify all Holders of the Notes, the Trustee and the Paying Agent of
such election prior to the beginning of such 360-day period.  Upon the failure to timely give such notice, the Notes shall be immediately
subject to acceleration as provided in Section 6.02.

In no event shall Additional Interest accrue under the terms of this Indenture (aggregating any Additional Interest

                                              30

payable pursuant to this Section 6.03 with any Additional Interest payable pursuant to Section 4.06(d) or Section
4.06(e)) at a rate per year in excess of 0.50%, regardless of the number of events or circumstances giving rise to the requirement to
pay such Additional Interest.

Section 6.04.    Payments of Notes on Default; Suit
Therefor.  If an Event of Default described in clause (a) or (b) of Section 6.01 shall have occurred, the Company shall, upon demand of
the Trustee, pay to the Trustee, for the benefit of the Holders of the Notes, the whole amount then due and payable on the Notes for principal
and interest, if any, with interest on any overdue principal and interest, if any, at the rate borne by the Notes at such time, and, in addition
thereto, such further amount as shall be sufficient to cover any amounts due to the Trustee under Section 7.06.  If the Company shall fail to
pay such amounts forthwith upon such demand, the Trustee, in its own name and as trustee of an express trust, may institute a judicial
proceeding for the collection of the sums so due and unpaid, may prosecute such proceeding to judgment or final decree and may enforce
the same against the Company or any other obligor upon the Notes and collect the moneys adjudged or decreed to be payable in the manner
provided by law out of the property of the Company or any other obligor upon the Notes, wherever situated.

In the event there shall be pending proceedings for the bankruptcy or for the reorganization of the Company or any other obligor on the
Notes under Title 11 of the United States Code, or any other applicable law, or in case a receiver, assignee or trustee in bankruptcy or
reorganization, liquidator, sequestrator or similar official shall have been appointed for or taken possession of the Company or such other
obligor, the property of the Company or such other obligor, or in the event of any other judicial proceedings relative to the Company or such
other obligor upon the Notes, or to the creditors or property of the Company or such other obligor, the Trustee, irrespective of whether the
principal of the Notes shall then be due and payable as therein expressed or by declaration or otherwise and irrespective of whether the
Trustee shall have made any demand pursuant to the provisions of this Section 6.04, shall be entitled and empowered, by intervention in
such proceedings or otherwise, to file and prove a claim or claims for the whole amount of principal and accrued and unpaid interest, if any, in
respect of the Notes, and, in case of any judicial proceedings, to file such proofs of claim and other papers or documents and to take such
other actions as it may deem necessary or advisable in order to have the claims of the Trustee (including any claim for the reasonable
compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and of the Holders allowed in such judicial
proceedings relative to the Company or any other obligor on the Notes, its or their creditors, or its or their property, and to collect and receive
any monies or other property payable or deliverable on any such claims, and to distribute the same after the deduction of any amounts due to
the Trustee under Section 7.06; and any receiver, assignee or trustee in bankruptcy or reorganization, liquidator, custodian or similar official
is hereby authorized by each of the Holders to make such payments to the Trustee, as administrative expenses, and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders, to pay to the Trustee any amount due it for reasonable
compensation, expenses, advances and disbursements, including agents and counsel fees, and including any other amounts due to the
Trustee under Section 7.06, incurred by it up to the date of such distribution.  To the extent that such payment of reasonable compensation,
expenses, advances and disbursements out of the estate in any such proceedings shall be denied for any reason, payment of the same shall
be secured by a lien on, and shall be paid out of, any and all distributions, dividends, monies, securities and other property that the Holders of
the Notes may be entitled to receive in such

                                              31

proceedings, whether in liquidation or under any plan of reorganization or arrangement or otherwise.

Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder
any plan of reorganization, arrangement, adjustment or composition affecting such Holder or the rights of any Holder thereof, or to authorize
the Trustee to vote in respect of the claim of any Holder in any such proceeding.

All rights of action and of asserting claims under this Indenture, or under any of the Notes, may be enforced by the Trustee without the
possession of any of the Notes, or the production thereof at any trial or other proceeding relative thereto, and any such suit or proceeding
instituted by the Trustee shall be brought in its own name as trustee of an express trust, and any recovery of judgment shall, after provision
for the payment of the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, be for the
ratable benefit of the Holders of the Notes.

In any proceedings brought by the Trustee (and in any proceedings involving the interpretation of any provision of this Indenture to which
the Trustee shall be a party) the Trustee shall be held to represent all the Holders of the Notes, and it shall not be necessary to make any
Holders of the Notes parties to any such proceedings.

In case the Trustee shall have proceeded to enforce any right under this Indenture and such proceedings shall have been discontinued or
abandoned because of any waiver pursuant to Section 6.09 or any rescission and annulment pursuant to Section 6.02 or for any other reason
or shall have been determined adversely to the Trustee, then and in every such case the Company, the Holders and the Trustee shall,
subject to any determination in such proceeding, be restored respectively to their several positions and rights hereunder, and all rights,
remedies and powers of the Company, the Holders and the Trustee shall continue as though no such proceeding had been instituted.

Section 6.05.    Application of Monies Collected by Trustee.  Any monies collected
by the Trustee pursuant to this Article 6 with respect to the Notes shall be applied in the following order, at the date or dates fixed by the
Trustee for the distribution of such monies, upon presentation of the several Notes, and stamping thereon the payment, if only partially paid,
and upon surrender thereof, if fully paid:

First, to the payment of all amounts due the Trustee (acting in any capacity hereunder) under Section 7.06;

Second, in case the principal of the outstanding Notes shall not have become due and be unpaid, to the payment of interest on,
and any cash due upon conversion of, the Notes in default in the order of the date due of the payments of such interest and cash due upon
conversion, as the case may be, with interest (to the extent that such interest has been collected by the Trustee) upon such overdue
payments at the rate borne by the Notes at such time, such payments to be made ratably to the Persons entitled thereto;

Third, in case the principal of the outstanding Notes shall have become due, by declaration or otherwise, and be unpaid to the payment of the whole amount (including, if

                                              32

applicable, the payment of the Fundamental Change Repurchase Price and any cash due upon
conversion) then owing and unpaid upon the Notes for principal and interest, if any, with interest on the overdue principal and, to the extent
that such interest has been collected by the Trustee, upon overdue installments of interest at the rate borne by the Notes at such time, and in
case such monies shall be insufficient to pay in full the whole amounts so due and unpaid upon the Notes, then to the payment of such
principal (including, if applicable, the Fundamental Change Repurchase Price and the cash due upon conversion) and interest without
preference or priority of principal over interest, or of interest over principal or of any installment of interest over any other installment of
interest, or of any Note over any other Note, ratably to the aggregate of such principal (including, if applicable, the Fundamental Change
Repurchase Price and any cash due upon conversion) and accrued and unpaid interest; and

Fourth, to the payment of the remainder, if any, to the Company.

Section 6.06.  
Proceedings by Holders.  Except to enforce the right to receive payment of principal (including, if applicable, the Fundamental Change
Repurchase Price) or interest when due, or the right to receive payment or delivery of the consideration due upon conversion, no Holder of
any Note shall have any right by virtue of or by availing of any provision of this Indenture to institute any suit, action or proceeding in equity or
at law upon or under or with respect to this Indenture, or for the appointment of a receiver, trustee, liquidator, custodian or other similar
official, or for any other remedy hereunder, unless: 

	such Holder previously shall have given to the Trustee written notice of an Event of Default and of the continuance thereof, as herein
provided;

	Holders of at least 25% in aggregate principal amount of the Notes then outstanding shall have made written request upon the Trustee to
institute such action, suit or proceeding in its own name as Trustee hereunder;

	such Holders shall have offered to the Trustee such security or indemnity satisfactory to it against any loss, liability or expense to be
incurred therein or thereby;

	the Trustee for 60 days after its receipt of such notice, request and offer of indemnity, shall have neglected or refused to institute any
such action, suit or proceeding; and 

	no direction that, in the opinion of the Trustee, is inconsistent with such written request shall have been given to the Trustee by the
Holders of a majority of the aggregate principal amount of the Notes then outstanding within such 60-day period pursuant to Section 6.09,

it being understood and intended, and being expressly covenanted by the taker and Holder of every Note with every other taker and
Holder and the Trustee that no one or more Holders shall have any right in any manner whatever by virtue of or by availing of any provision of
this Indenture to affect, disturb or prejudice the rights of any other Holder, or to obtain or seek to obtain priority over or preference to any
other such Holder, or to enforce any right under this Indenture, except in the manner herein provided and for the equal, ratable and common
benefit of all Holders (except as otherwise provided herein) (it being understood that the Trustee does not have an affirmative duty to
ascertain whether or not such actions or forbearances are unduly

                                              33

prejudicial to such Holders).  For the protection and enforcement of this
Section 6.06, each and every Holder and the Trustee shall be entitled to such relief as can be given either at law or in
equity.

Notwithstanding any other provision of this Indenture and any provision of any Note, the right of any Holder to receive payment or
delivery, as the case may be, of (x) the principal (including the Fundamental Change Repurchase Price, if applicable) of, (y) accrued and
unpaid interest, if any, on, and (z) the consideration due upon conversion of, such Note, on or after the respective due dates expressed or
provided for in such Note or in this Indenture, or to institute suit for the enforcement of any such payment or delivery, as the case may be, on
or after such respective dates against the Company shall not be impaired or affected without the consent of such Holder.

Section 6.07.      Proceedings by Trustee.  In case of an Event of Default, the
Trustee may in its discretion proceed to protect and enforce the rights vested in it by this Indenture by such appropriate judicial proceedings
as are necessary to protect and enforce any of such rights, either by suit in equity or by action at law or by proceeding in bankruptcy or
otherwise, whether for the specific enforcement of any covenant or agreement contained in this Indenture or in aid of the exercise of any
power granted in this Indenture, or to enforce any other legal or equitable right vested in the Trustee by this Indenture or by
law.

Section 6.08.      Remedies Cumulative and Continuing.  Except as provided in the last paragraph of Section 2.06,
all powers and remedies given by this Article 6 to the Trustee or to the Holders shall, to the extent permitted by law, be deemed cumulative
and not exclusive of any thereof or of any other powers and remedies available to the Trustee or the Holders of the Notes, by judicial
proceedings or otherwise, to enforce the performance or observance of the covenants and agreements contained in this Indenture, and no
delay or omission of the Trustee or of any Holder of any of the Notes to exercise any right or power accruing upon any Default or Event of
Default shall impair any such right or power, or shall be construed to be a waiver of any such Default or Event of Default or any acquiescence
therein; and, subject to the provisions of Section 6.06, every power and remedy given by this Article 6 or by law to the Trustee or to the
Holders may be exercised from time to time, and as often as shall be deemed expedient, by the Trustee or by the Holders.

Section 6.09.      Direction of Proceedings and Waiver of Defaults by Majority of Holders.
The Holders of a majority of the aggregate principal amount of the Notes at the time outstanding determined in accordance with Section 8.04
shall have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or exercising
any trust or power conferred on the Trustee with respect to Notes; provided, however, that  such direction shall not be in
conflict with any rule of law or with this Indenture, and  the Trustee may take any other action deemed proper by the Trustee that is not
inconsistent with such direction.  The Trustee may refuse to follow any direction that it determines is unduly prejudicial to the rights of any
other Holder or that would involve the Trustee in personal liability.  The Holders of a majority in aggregate principal amount of the Notes at the
time outstanding determined in accordance with Section 8.04 may on behalf of the Holders of all of the Notes waive any past Default or Event
of Default hereunder and its consequences except  a default in the payment of accrued and unpaid interest, if any, on, or the principal (including any

                                              34

Fundamental Change Repurchase Price) of, the Notes when due that has not been cured pursuant to the provisions of Section
6.01,  a failure by the Company to pay or deliver, as the case may be, the consideration due upon conversion of the Notes or  a default in
respect of a covenant or provision hereof which under Article 10 cannot be modified or amended without the consent of each Holder of an
outstanding Note affected.  Upon any such waiver the Company, the Trustee and the Holders of the Notes shall be restored to their former
positions and rights hereunder; but no such waiver shall extend to any subsequent or other Default or Event of Default or impair any right
consequent thereon.  Whenever any Default or Event of Default hereunder shall have been waived as permitted by this Section 6.09, said
Default or Event of Default shall for all purposes of the Notes and this Indenture be deemed to have been cured and to be not continuing; but
no such waiver shall extend to any subsequent or other Default or Event of Default or impair any right consequent
thereon.

Section 6.10.      Notice of Defaults.  The Trustee shall, within 90 days after a
Responsible Officer of the Trustee receives written notice of the occurrence and continuance of a Default of which it has actual knowledge,
send to all Holders as the names and addresses of such Holders appear upon the Note Register, notice of all such Defaults, unless such
Defaults shall have been cured or waived before the giving of such notice; provided that, except in the case of a Default in the
payment of the principal of (including the Fundamental Change Repurchase Price, if applicable), or accrued and unpaid interest on, any of
the Notes or a Default in the payment or delivery of the consideration due upon conversion, the Trustee shall be protected in withholding such
notice if and so long as it in good faith determines that the withholding of such notice is in the interests of the Holders.

Section 6.11.      Undertaking to Pay Costs.  All parties to this Indenture agree, and each Holder of any Note by its
acceptance thereof shall be deemed to have agreed, that any court may, in its discretion, require, in any suit for the enforcement of any right
or remedy under this Indenture, or in any suit against the Trustee for any action taken or omitted by it as Trustee, the filing by any party
litigant in such suit of an undertaking to pay the costs of such suit and that such court may in its discretion assess reasonable costs, including
reasonable attorneys' fees and expenses, against any party litigant in such suit, having due regard to the merits and good faith of the claims
or defenses made by such party litigant; provided that the provisions of this Section 6.11 (to the extent permitted by law) shall not
apply to any suit instituted by the Trustee, to any suit instituted by any Holder, or group of Holders, holding in the aggregate more than 10% in
principal amount of the Notes at the time outstanding determined in accordance with Section 8.04, or to any suit instituted by any Holder for
the enforcement of the payment of the principal of or accrued and unpaid interest, if any, on any Note (including, but not limited to, the
Fundamental Change Repurchase Price with respect to the Notes being repurchased as provided in this Indenture) on or after the due date
expressed or provided for in such Note or to any suit for the enforcement of the right to convert any Note in accordance with the provisions of
Article 14.

                                              35

ARTICLE 7

Concerning the Trustee

Section 7.01.      Duties and Responsibilities of Trustee.  The
Trustee, prior to the occurrence of an Event of Default and after the curing or waiver of all Events of Default that may have occurred,
undertakes to perform such duties and only such duties as are specifically set forth in this Indenture.  In the event an Event of Default has
occurred and is continuing, the Trustee shall exercise such of the rights and powers vested in it by this Indenture, and use the same degree
of care and skill in its exercise, as a prudent person would exercise or use under the circumstances in the conduct of such person's own
affairs; provided that if an Event of Default occurs and is continuing, the Trustee will be under no obligation to exercise any of the
rights or powers under this Indenture at the request or direction of any of the Holders unless such Holders have offered to the Trustee
indemnity or security satisfactory to it against any loss, liability or expense that might be incurred by it in compliance with such request or
direction.

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

	prior to the occurrence of an Event of Default and after the curing or waiving of all Events of Default that may have occurred:

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

	in the absence of bad faith and willful misconduct on the part of the Trustee, the Trustee may conclusively rely, as to the truth of the
statements and the correctness of the opinions expressed therein, upon any certificates or opinions furnished to the Trustee and conforming
to the requirements of this Indenture; but, in the case of any such certificates or opinions that by any provisions hereof are specifically
required to be furnished to the Trustee, the Trustee shall be under a duty to examine the same to determine whether or not they conform to
the requirements of this Indenture (but need not confirm or investigate the accuracy of any mathematical calculations or other facts stated
therein);

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

	the Trustee shall not be liable with respect to any action taken or omitted to be taken by it in good faith in accordance with the direction of
the Holders of not less than a majority of the aggregate principal amount of the Notes at the time outstanding determined as provided in
Section 8.04 relating to the time, method and place of conducting any proceeding for any

                                              36

remedy available to the Trustee, or exercising any trust or power conferred upon the Trustee, under this Indenture;

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

	the Trustee shall not be liable in respect of any payment (as to the correctness of amount, entitlement to receive or any other matters
relating to payment) or notice effected by the Company or any Paying Agent or any records maintained by any co-Note Registrar with respect
to the Notes;

	if any party fails to deliver a notice relating to an event the fact of which, pursuant to this Indenture, requires notice to be sent to the
Trustee, the Trustee may conclusively rely on its failure to receive such notice as reason to act as if no such event occurred, unless a
Responsible Officer of the Trustee had actual knowledge of such event;

	in the absence of written investment direction from the Company, all cash received by the Trustee shall be placed in a non-interest
bearing trust account, and in no event shall the Trustee be liable for the selection of investments or for investment losses incurred thereon or
for losses incurred as a result of the liquidation of any such investment prior to its maturity date or the failure of the party directing such
investments prior to its maturity date or the failure of the party directing such investment to provide timely written investment direction, and the
Trustee shall have no obligation to invest or reinvest any amounts held hereunder in the absence of such written investment direction from
the Company; and

	in the event that the Trustee is also acting as Custodian, Note Registrar, Paying Agent, Conversion Agent, Bid Solicitation Agent or
transfer agent hereunder, the rights and protections afforded to the Trustee pursuant to this Article 7 shall also be afforded to such Custodian,
Note Registrar, Paying Agent, Conversion Agent, Bid Solicitation Agent or transfer agent.

None of the provisions contained in this Indenture shall require the Trustee to expend or risk its own funds or otherwise incur personal
financial liability in the performance of any of its duties or in the exercise of any of its rights or powers.

Section 7.02.      Reliance
on Documents, Opinions, Etc.  Except as otherwise provided in Section 7.01:

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

	any request, direction, order or demand of the Company mentioned herein shall be sufficiently evidenced by an Officer's Certificate
(unless other evidence in respect thereof be herein specifically prescribed); and any Board Resolution may be evidenced to the Trustee by a
copy thereof certified by the Secretary or an Assistant Secretary of the Company;

                                              37

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

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

	the Trustee may execute any of the trusts or powers hereunder or perform any duties hereunder either directly or by or through agents,
custodians, nominees or attorneys and the Trustee shall not be responsible for any misconduct or negligence on the part of any agent,
custodian, nominee or attorney appointed by it with due care hereunder; 

	the permissive rights of the Trustee enumerated herein shall not be construed as duties;

	the Trustee shall not be required to give any bond or surety in respect of the performance of its powers and duties hereunder; and

	the Trustee may request that the Company deliver a certificate setting forth the names of individuals and/or titles of officers authorized at
such time to take specified actions pursuant to this Indenture.

In no event shall the Trustee be liable for any punitive, special, indirect or consequential loss or damage of any kind whatsoever
(including but not limited to lost profits), even if the Trustee has been advised of the likelihood of such loss or damage and regardless of the
form of action.  The Trustee shall not be charged with knowledge of any Default or Event of Default with respect to the Notes, unless either
(1) a Responsible Officer shall have actual knowledge of such Default or Event of Default or (2) written notice of such Default or Event of
Default shall have been given to the Trustee by the Company or by any Holder of the Notes.

Section 7.03.      No Responsibility for Recitals, Etc.  The recitals contained herein
and in the Notes (except in the Trustee's certificate of authentication) shall be taken as the statements of the Company, and the Trustee
assumes no responsibility for the correctness of the same.  The Trustee makes no representations as to the validity or sufficiency of this
Indenture or of the Notes.  The Trustee shall not be accountable for the use or application by the Company of any Notes or the proceeds of
any Notes authenticated and delivered by the Trustee in conformity with the provisions of this Indenture.

Section 7.04.      Trustee, Paying Agents, Conversion Agents, Bid Solicitation Agent or
Note Registrar May Own Notes.  The Trustee, any Paying Agent, any Conversion Agent, Bid Solicitation Agent or Note Registrar, in its
individual or any other capacity, may become the

                                              38

owner or pledgee of Notes with the same rights it would have if it were not the Trustee, Paying Agent, Conversion Agent, Bid Solicitation Agent or Note Registrar.

Section 7.05.      Monies and Shares of Common Stock to Be Held in Trust.  All
monies and any shares of Common Stock received by the Trustee shall, until used or applied as herein provided, be held in trust for the
purposes for which they were received.  Money and shares of Common Stock held by the Trustee in trust hereunder need not be segregated
from other funds or property except to the extent required by law.  The Trustee shall be under no liability for interest on any money or shares
of Common Stock received by it hereunder except as may be agreed from time to time by the Company and the Trustee.

Section 7.06.      Compensation and Expenses of Trustee.  The Company covenants and
agrees to pay to the Trustee from time to time, and the Trustee shall be entitled to, compensation for all services rendered by it hereunder in
any capacity (which shall not be limited by any provision of law in regard to the compensation of a trustee of an express trust) as mutually
agreed to in writing between the Trustee and the Company, and the Company will pay or reimburse the Trustee upon its request for all
reasonable expenses, disbursements and advances reasonably incurred or made by the Trustee in accordance with any of the provisions of
this Indenture in any capacity thereunder (including the reasonable compensation and the expenses and disbursements of its agents and
counsel and of all Persons not regularly in its employ) except any such expense, disbursement or advance as shall have been caused by its
gross negligence, willful misconduct or bad faith.  The Company also covenants to indemnify the Trustee in any capacity under this Indenture
and any other document or transaction entered into in connection herewith and its agents and any authenticating agent for, and to hold them
harmless against, any loss, claim (whether asserted by the Company, a Holder or any other Person), damage, liability or expense incurred
without gross negligence, willful misconduct or bad faith on the part of the Trustee, its officers, directors, agents or employees, or such agent
or authenticating agent, as the case may be, and arising out of or in connection with the acceptance or administration of this Indenture or in
any other capacity hereunder, including the costs and expenses of defending themselves against any claim of liability in the premises.  The
obligations of the Company under this Section 7.06 to compensate or indemnify the Trustee and to pay or reimburse the Trustee for
expenses, disbursements and advances shall be secured by a senior claim to which the Notes are hereby made subordinate on all money or
property held or collected by the Trustee, except, subject to the effect of Section 6.05, funds held in trust herewith for the benefit of the
Holders of particular Notes.  The Trustee's right to receive payment of any amounts due under this Section 7.06 shall not be subordinate to
any other liability or indebtedness of the Company.  The obligation of the Company under this Section 7.06 shall survive the satisfaction and
discharge of this Indenture and the earlier resignation or removal of the Trustee.  The Company need not pay for any settlement made
without its consent, which consent shall not be unreasonably withheld.  The indemnification provided in this Section 7.06 shall extend to the
officers, directors, agents and employees of the Trustee.

Without prejudice to any other rights available to the Trustee under applicable law, when the Trustee and its agents and any
authenticating agent incur expenses or render services after an Event of Default specified in Section 6.01(h) or Section 6.01(i) occurs, the expenses and the compensation for the services are intended to constitute expenses of
administration under any bankruptcy, insolvency or similar laws.

                                              39

Section 7.07.      Officer's Certificate as Evidence.  Except as otherwise provided in Section 7.01, whenever in the
administration of the provisions of this Indenture the Trustee shall deem it necessary or desirable that a matter be proved or established prior
to taking or omitting any action hereunder, such matter (unless other evidence in respect thereof be herein specifically prescribed) may, in the
absence of gross negligence, willful misconduct and bad faith on the part of the Trustee, be deemed to be conclusively proved and
established by an Officer's Certificate delivered to the Trustee, and such Officer's Certificate, in the absence of gross negligence, willful
misconduct, recklessness and bad faith on the part of the Trustee, shall be full warrant to the Trustee for any action taken or omitted by it
under the provisions of this Indenture upon the faith thereof.

Section 7.08.      Eligibility
of Trustee.  There shall at all times be a Trustee hereunder which shall be a Person that is eligible pursuant to the Trust Indenture Act to
act as such and has a combined capital and surplus of at least $50,000,000.  If such Person publishes reports of condition at least annually,
pursuant to law or to the requirements of any supervising or examining authority, then for the purposes of this Section, the combined capital
and surplus of such Person shall be deemed to be its combined capital and surplus as set forth in its most recent report of condition so
published.  If at any time the Trustee shall cease to be eligible in accordance with the provisions of this Section, it shall resign immediately in
the manner and with the effect hereinafter specified in this Article.

Section 7.09.      Resignation or Removal of Trustee.

	 The Trustee may at any time resign by giving written notice of such resignation to the Company and by
mailing notice thereof to the Holders at their addresses as they shall appear on the Note Register.  Upon receiving such notice of resignation,
the Company shall promptly appoint a successor trustee by written instrument, in duplicate, executed by order of the Board of Directors, one
copy of which instrument shall be delivered to the resigning Trustee and one copy to the successor trustee.  If no successor trustee shall
have been so appointed and have accepted appointment within 60 days after the mailing of such notice of resignation to the Holders, the
resigning Trustee may, upon ten Business Days' notice to the Company and the Holders at the expense of the Company, petition any court of
competent jurisdiction for the appointment of a successor trustee, or any Holder who has been a bona fide holder of a Note or Notes for at
least six months may, subject to the provisions of Section 6.11, on behalf of himself or herself and all others similarly situated, petition any
such court for the appointment of a successor trustee.  Such court may thereupon, after such notice, if any, as it may deem proper and
prescribe, appoint a successor trustee.

	In case at any time any of the following shall occur:

	the Trustee shall cease to be eligible in accordance with the provisions of Section 7.08 and shall fail to resign after written request
therefor by the Company or by any such Holder, or

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

                                              40

then, in either case, the Company may by a Board Resolution remove the Trustee and appoint a successor trustee by written instrument,
in duplicate, executed by order of the Board of Directors, one copy of which instrument shall be delivered to the Trustee so removed and one
copy to the successor trustee, or, subject to the provisions of Section 6.11, any Holder who has been a bona fide holder of a Note or Notes
for at least six months may, on behalf of himself or herself and all others similarly situated, petition any court of competent jurisdiction for the
removal of the Trustee and the appointment of a successor trustee.  Such court may thereupon, after such notice, if any, as it may deem
proper and prescribe, remove the Trustee and appoint a successor trustee.

	The Holders of a majority in aggregate principal amount of the Notes at the time outstanding, as determined in accordance with Section
8.04, may at any time remove the Trustee and nominate a successor trustee that shall be deemed appointed as successor trustee unless
within ten days after notice to the Company of such nomination the Company objects thereto, in which case the Trustee so removed or any
Holder, upon the terms and conditions and otherwise as in Section 7.09 provided, may petition any court of competent jurisdiction for an
appointment of a successor trustee.

	Any resignation or removal of the Trustee and appointment of a successor trustee pursuant to any of the provisions of this Section 7.09
shall become effective upon acceptance of appointment by the successor trustee as provided in Section 7.10.

Section 7.10.      Acceptance by Successor Trustee.
Any successor trustee appointed as provided in Section 7.09 shall execute, acknowledge and deliver to the Company and to its predecessor
trustee an instrument accepting such appointment hereunder, and thereupon the resignation or removal of the predecessor trustee shall
become effective and such successor trustee, without any further act, deed or conveyance, shall become vested with all the rights, powers,
duties and obligations of its predecessor hereunder, with like effect as if originally named as Trustee herein; but, nevertheless, on the written
request of the Company or of the successor trustee, the trustee ceasing to act shall, upon payment of any amounts then due it pursuant to
the provisions of Section 7.06, execute and deliver an instrument transferring to such successor trustee all the rights and powers of the
trustee so ceasing to act.  Upon request of any such successor trustee, the Company shall execute any and all instruments in writing for more
fully and certainly vesting in and confirming to such successor trustee all such rights and powers.  Any trustee ceasing to act shall,
nevertheless, retain a senior claim to which the Notes are hereby made subordinate on all money or property held or collected by such
trustee as such, except for funds held in trust for the benefit of Holders of particular Notes, to secure any amounts then due it pursuant to the
provisions of Section 7.06. The Trustee shall have no liability or responsibility for the action or inaction of any successor
Trustee.

No successor trustee shall accept appointment as provided in this Section 7.10 unless at the time of such acceptance such successor
trustee shall be eligible under the provisions of Section 7.08.

Upon acceptance of appointment by a successor trustee as provided in this Section 7.10, each of the Company and the successor
trustee, at the written direction and at the expense of the Company shall mail or cause to be mailed notice of the succession of such trustee
hereunder to the Holders at their addresses as they shall appear on the Note Register.  If the Company fails to

                                              41

mail such notice within ten days after acceptance of appointment by the successor trustee, the successor trustee shall cause such notice to be mailed at the expense of
the Company.

Section 7.11.      Succession by Merger, Etc.  Any corporation or other entity into which the Trustee may be
merged or converted or with which it may be consolidated, or any corporation or other entity resulting from any merger, conversion or
consolidation to which the Trustee shall be a party, or any corporation or other entity succeeding to all or substantially all of the corporate
trust business of the Trustee (including the administration of this Indenture), shall be the successor to the Trustee hereunder without the
execution or filing of any paper or any further act on the part of any of the parties hereto; provided that in the case of any corporation
or other entity succeeding to all or substantially all of the corporate trust business of the Trustee such corporation or other entity shall be
eligible under the provisions of Section 7.08.

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

Section 7.12.      Trustee's Application for Instructions from the Company.  Any application by the Trustee for
written instructions from the Company (other than with regard to any action proposed to be taken or omitted to be taken by the Trustee that
affects the rights of the Holders of the Notes under this Indenture) may, at the option of the Trustee, set forth in writing any action proposed to
be taken or omitted by the Trustee under this Indenture and the date on and/or after which such action shall be taken or such omission shall
be effective.  The Trustee shall not be liable for any action taken by, or omission of, the Trustee in accordance with a proposal included in
such application on or after the date specified in such application (which date shall not be less than three Business Days after the date any
officer that the Company has indicated to the Trustee should receive such application actually receives such application, unless any such
officer shall have consented in writing to any earlier date), unless, prior to taking any such action (or the effective date in the case of any
omission), the Trustee shall have received written instructions in accordance with this Indenture in response to such application specifying the
action to be taken or omitted.

ARTICLE 8

Concerning the Holders

Section 8.01.      Action by
Holders.  Whenever in this Indenture it is provided that the Holders of a specified percentage of the aggregate principal amount of the Notes may take any

                                              42

action (including the making of any demand or request, the giving of any notice, consent or waiver or the taking of any
other action), the fact that at the time of taking any such action, the Holders of such specified percentage have joined therein may be
evidenced  by any instrument or any number of instruments of similar tenor executed by Holders in person or by agent or proxy appointed in
writing, or  by the record of the Holders voting in favor thereof at any meeting of Holders duly called and held in accordance with the
provisions of Article 9, or  by a combination of such instrument or instruments and any such record of such a meeting of Holders.  Whenever
the Company or the Trustee solicits the taking of any action by the Holders of the Notes, the Company or the Trustee may fix, but shall not be
required to, in advance of such solicitation, a date as the record date for determining Holders entitled to take such action.  The record date if
one is selected shall be not more than fifteen days prior to the date of commencement of solicitation of such action.

Section 8.02.      Proof of Execution by Holders.  Subject to the provisions of Section
7.01, Section 7.02 and Section
9.05, proof of the execution of any instrument by a Holder or its agent or proxy shall be sufficient if made in accordance with such
reasonable rules and regulations as may be prescribed by the Trustee or in such manner as shall be satisfactory to the Trustee.  The holding
of Notes shall be proved by the Note Register or by a certificate of the Note Registrar.  The record of any Holders' meeting shall be proved in
the manner provided in Section 9.06.

Section 8.03.      Who Are Deemed Absolute Owners.  The Company, the Trustee,
any authenticating agent, any Paying Agent, any Conversion Agent and any Note Registrar may deem the Person in whose name a Note
shall be registered upon the Note Register to be, and may treat it as, the absolute owner of such Note (whether or not such Note shall be
overdue and notwithstanding any notation of ownership or other writing thereon made by any Person other than the Company or any Note
Registrar) for the purpose of receiving payment of or on account of the principal of and (subject to Section 2.03) accrued and unpaid interest
on such Note, for conversion of such Note and for all other purposes under this Indenture; and neither the Company nor the Trustee nor any
Paying Agent nor any Conversion Agent nor any Note Registrar shall be affected by any notice to the contrary.  The sole registered holder of
a Global Note shall be the Depositary or its nominee.  All such payments or deliveries so made to any Holder for the time being, or upon its
order, shall be valid, and, to the extent of the sums or shares of Common Stock so paid or delivered, effectual to satisfy and discharge the
liability for monies payable or shares deliverable upon any such Note.  Notwithstanding anything to the contrary in this Indenture or the Notes
following an Event of Default, any owner of a beneficial interest in a Global Note may directly enforce against the Company, without the
consent, solicitation, proxy, authorization or any other action of the Depositary or any other Person, such Holder's right to exchange such
beneficial interest for a Note in certificated form in accordance with the provisions of this Indenture.

Section 8.04.      Company-Owned Notes Disregarded.  In determining whether the Holders
of the requisite aggregate principal amount of Notes have concurred in any direction, consent, waiver or other action under this Indenture,
Notes that are owned by the Company, by any Subsidiary thereof or by any Person directly or indirectly controlling or controlled by or under
direct or indirect common control with the Company or any Subsidiary thereof shall be disregarded and deemed not to be outstanding for the
purpose of any such determination; provided that for the purposes of determining whether the Trustee shall be protected in relying

                                              43

on any such direction, consent, waiver or other action only Notes that a Responsible Officer actually knows are so owned shall be so
disregarded.  Notes so owned that have been pledged in good faith may be regarded as outstanding for the purposes of this Section 8.04 if
the pledgee shall establish to the satisfaction of the Trustee the pledgee's right to so act with respect to such Notes and that the pledgee is
not the Company, a Subsidiary thereof or a Person directly or indirectly controlling or controlled by or under direct or indirect common control
with the Company or a Subsidiary thereof.  In the case of a dispute as to such right, any decision or indecision by the Trustee taken upon the
advice of counsel shall be full protection to the Trustee.  Upon request of the Trustee, the Company shall furnish to the Trustee promptly an
Officer's Certificate listing and identifying all Notes, if any, known by the Company to be owned or held by or for the account of any of the
above described Persons; and, subject to Section 7.01, the Trustee shall be entitled to accept such Officer's Certificate as conclusive
evidence of the facts therein set forth and of the fact that all Notes not listed therein are outstanding for the purpose of any such
determination.

Section 8.05.      Revocation of Consents; Future Holders Bound.  At any time prior to (but not after) the
evidencing to the Trustee, as provided in Section 8.01, of the taking of any action by the Holders of the percentage of the aggregate principal
amount of the Notes specified in this Indenture in connection with such action, any Holder of a Note that is shown by the evidence to be
included in the Notes the Holders of which have consented to such action may, by filing written notice with the Trustee at its Corporate Trust
Office and upon proof of holding as provided in Section 8.02, revoke such action so far as concerns such Note.  Except as aforesaid, any
such action taken by the Holder of any Note shall be conclusive and binding upon such Holder and upon all future Holders and owners of
such Note and of any Notes issued in exchange or substitution therefor or upon registration of transfer thereof, irrespective of whether any
notation in regard thereto is made upon such Note or any Note issued in exchange or substitution therefor or upon registration of transfer
thereof.

ARTICLE 9

Holders' Meetings

Section 9.01.      Purpose of Meetings.  A meeting of Holders may be called at any
time and from time to time pursuant to the provisions of this Article 9 for any of the following purposes:

	to give any notice to the Company or to the Trustee or to give any directions to the Trustee permitted under this Indenture, or to consent
to the waiving of any Default or Event of Default hereunder (in each case, as permitted under this Indenture) and its consequences, or to take
any other action authorized to be taken by Holders pursuant to any of the provisions of Article 6;

	to remove the Trustee and nominate a successor trustee pursuant to the provisions of Article 7;

	to consent to the execution of an indenture or indentures supplemental hereto pursuant to the provisions of Section 10.02; or

                                              44

	to take any other action authorized to be taken by or on behalf of the Holders of any specified aggregate principal amount of the Notes
under any other provision of this Indenture or under applicable law.

Section 9.02.      Call of Meetings by Trustee.  The Trustee may at any time call a
meeting of Holders to take any action specified in Section 9.01, to be held at such time and at such place as the Trustee shall determine.
Notice of every meeting of the Holders, setting forth the time and the place of such meeting and in general terms the action proposed to be
taken at such meeting and the establishment of any record date pursuant to Section 8.01, shall be mailed to Holders of such Notes at their
addresses as they shall appear on the Note Register.  Such notice shall also be mailed to the Company.  Such notices shall be mailed not
less than 20 nor more than 90 days prior to the date fixed for the meeting.

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

Section 9.03.      Call of Meetings by Company or Holders.  In case at any time the
Company, pursuant to a Board Resolution, or the Holders of at least 10% of the aggregate principal amount of the Notes then outstanding,
shall have requested the Trustee to call a meeting of Holders, by written request setting forth in reasonable detail the action proposed to be
taken at the meeting, and the Trustee shall not have mailed the notice of such meeting within 20 days after receipt of such request, then the
Company or such Holders may determine the time and the place for such meeting and may call such meeting to take any action authorized in
Section 9.01, by mailing notice thereof as provided in Section 9.02.

Section 9.04.      Qualifications for Voting.  To be entitled to vote at any meeting of Holders a Person shall  be a
Holder of one or more Notes on the record date pertaining to such meeting or  be a Person appointed by an instrument in writing as proxy by
a Holder of one or more Notes on the record date pertaining to such meeting.  The only Persons who shall be entitled to be present or to
speak at any meeting of Holders shall be the Persons entitled to vote at such meeting and their counsel and any representatives of the
Trustee and its counsel and any representatives of the Company and its counsel.

Section 9.05.      Regulations.  Notwithstanding any other provisions of this
Indenture, the Trustee may make such reasonable regulations as it may deem advisable for any meeting of Holders, in regard to proof of the
holding of Notes and of the appointment of proxies, and in regard to the appointment and duties of inspectors of votes, the submission and
examination of proxies, certificates and other evidence of the right to vote, and such other matters concerning the conduct of the meeting as it
shall think fit.

The Trustee may, by an instrument in writing, appoint a temporary chairman of the meeting, unless the meeting shall have been called by
the Company or by Holders as provided in Section 9.03, in which case the Company or the Holders calling the meeting, as the case may be,
shall in like manner appoint a temporary chairman.  A permanent chairman and a permanent

                                              45

secretary of the meeting shall be elected by vote of the Holders of a majority in aggregate principal amount of the Notes represented at the meeting and entitled to vote at the
meeting.

Subject to the provisions of Section 8.04, at any meeting of Holders each Holder or proxyholder shall be entitled to one vote for each
$1,000 principal amount of Notes held or represented by him or her; provided, however, that no vote shall be cast or counted at
any meeting in respect of any Note challenged as not outstanding and ruled by the chairman of the meeting to be not outstanding.  The
chairman of the meeting shall have no right to vote other than by virtue of Notes held by it or instruments in writing as aforesaid duly
designating it as the proxy to vote on behalf of other Holders.  Any meeting of Holders duly called pursuant to the provisions of Section 9.02
or Section 9.03 may be adjourned from time to time by the Holders of a majority of the aggregate principal amount of Notes represented at
the meeting, whether or not constituting a quorum, and the meeting may be held as so adjourned without further notice.

Section 9.06.      Voting.  The vote upon any resolution submitted to any meeting of
Holders shall be by written ballot on which shall be subscribed the signatures of the Holders or of their representatives by proxy and the
outstanding aggregate principal amount of the Notes held or represented by them.  The permanent chairman of the meeting shall appoint two
inspectors of votes who shall count all votes cast at the meeting for or against any resolution and who shall make and file with the secretary
of the meeting their verified written reports in duplicate of all votes cast at the meeting.  A record in duplicate of the proceedings of each
meeting of Holders shall be prepared by the secretary of the meeting and there shall be attached to said record the original reports of the
inspectors of votes on any vote by ballot taken thereat and affidavits by one or more Persons having knowledge of the facts setting forth a
copy of the notice of the meeting and showing that said notice was mailed as provided in Section 9.02.  The record shall show the aggregate
principal amount of the Notes voting in favor of or against any resolution.  The record shall be signed and verified by the affidavits of the
permanent chairman and secretary of the meeting and one of the duplicates shall be delivered to the Company and the other to the Trustee
to be preserved by the Trustee, the latter to have attached thereto the ballots voted at the meeting.

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

Section 9.07.      No Delay of Rights by Meeting.  Nothing contained in this Article 9 shall be deemed or construed
to authorize or permit, by reason of any call of a meeting of Holders or any rights expressly or impliedly conferred hereunder to make such
call, any hindrance or delay in the exercise of any right or rights conferred upon or reserved to the Trustee or to the Holders under any of the
provisions of this Indenture or of the Notes. Nothing contained in this Article 9 shall be deemed or construed to limit any Holder's actions
pursuant to the applicable procedures of the Depositary so long as the Notes are Global Notes.

                                              46

ARTICLE 10

Supplemental Indentures

Section 10.01.      Supplemental Indentures Without Consent of Holders.  The
Company, when authorized by the resolutions of the Board of Directors and the Trustee, at the Company's expense, may from time to time
and at any time enter into an indenture or indentures supplemental hereto for one or more of the following purposes:

	to cure any ambiguity, omission, defect or inconsistency;

	to provide for the assumption by a Successor Company of the obligations of the Company under this Indenture pursuant to Article
11;

	to add guarantees with respect to the Notes;

	to secure the Notes;

	to add to the covenants or Events of Defaults of the Company for the benefit of the Holders or surrender any right or power conferred
upon the Company;

	to make any change that does not adversely affect the rights of any Holder;

	to increase the Conversion Rate as provided in this Indenture;

	to provide for the acceptance of appointment by a successor trustee pursuant to Section 7.09 or to facilitate the administration of the
trusts by more than one trustee;

	to irrevocably elect or eliminate a Settlement Method and/or irrevocably elect a minimum Specified Dollar Amount; or

	to conform the provisions of this Indenture or the Notes to the "Description of Notes" section of the Offering
Memorandum.

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

Any supplemental indenture authorized by the provisions of this Section 10.01 may be executed by the Company and the Trustee without
the consent of the Holders of any of the Notes at the time outstanding, notwithstanding any of the provisions of Section 10.02.

Section 10.02.   
Supplemental Indentures with Consent of Holders.  With the consent (evidenced as provided in Article 8) of the Holders of at least a
majority of the aggregate principal amount of the Notes then outstanding (determined in accordance with Article 8 and including, without
limitation, consents obtained in connection with a repurchase of, or tender or exchange offer for, Notes), the Company, when authorized by the resolutions of the Board of

                                              47

Directors and the Trustee, at the Company's expense, may from time to time and at any time enter into an
indenture or indentures supplemental hereto for the purpose of adding any provisions to or changing in any manner or eliminating any of the
provisions of this Indenture or any supplemental indenture or of modifying in any manner the rights of the Holders; provided,
however, that, without the consent of each Holder of an outstanding Note affected, no such supplemental indenture
shall:

	reduce the amount of Notes whose Holders must consent to an amendment;

	reduce the rate of or extend the stated time for payment of interest on any Note;

	reduce the principal of or extend the Maturity Date of any Note;

	except as required under this Indenture, make any change that adversely affects the conversion rights of any Notes;

	reduce the Fundamental Change Repurchase Price of any Note or amend or modify in any manner adverse to the Holders the
Company's obligation to make such payments, whether through an amendment or waiver of provisions in the covenants, definitions or
otherwise;

	make any Note payable in a currency other than that stated in the Note;

	change the ranking of the Notes; 

	impair the right of any Holder to receive payment of principal and interest on such Holder's Notes on or after the due dates therefor or to
institute suit for the enforcement of any payment on or with respect to such Holder's Note; or

	make any change in this Article 10 that requires each Holder's consent or in the waiver provisions in Section 6.02 or Section 6.09.

Upon the written request of the Company, and upon the filing with the Trustee of evidence of the consent of Holders as
aforesaid and subject to Section 10.05, the Trustee shall join with the Company in the execution of such supplemental indenture unless such
supplemental indenture affects the Trustee's own rights, duties or immunities under this Indenture or otherwise, in which case the Trustee
may in its discretion, but shall not be obligated to, enter into such supplemental indenture.

Holders do not need under this Section 10.02 to approve the particular form of any proposed supplemental indenture.  It shall be
sufficient if such Holders approve the substance thereof.  After any such supplemental indenture becomes effective, the Company shall mail
to the Holders a notice briefly describing such supplemental indenture. However, the failure to give such notice to all the Holders, or any
defect in the notice, will not impair or affect the validity of the supplemental indenture.

Section 10.03.      Effect of Supplemental Indentures.
Upon the execution of any supplemental indenture pursuant to the provisions of this Article 10, this Indenture shall be and be deemed to be modified and amended in accordance therewith and the respective rights,

                                              48

limitation of rights, obligations, duties and immunities under this
Indenture of the Trustee, the Company and the Holders shall thereafter be determined, exercised and enforced hereunder subject in all
respects to such modifications and amendments and all the terms and conditions of any such supplemental indenture shall be and be
deemed to be part of the terms and conditions of this Indenture for any and all purposes.

Section 10.04.      Notation on Notes.  Notes
authenticated and delivered after the execution of any supplemental indenture pursuant to the provisions of this Article 10 may, at the
Company's expense, bear a notation in form approved by the Trustee as to any matter provided for in such supplemental indenture.  If the
Company or the Trustee shall so determine, new Notes so modified as to conform, in the opinion of the Trustee and the Board of Directors, to
any modification of this Indenture contained in any such supplemental indenture may, at the Company's expense, be prepared and executed
by the Company, authenticated by the Trustee (or an authenticating agent duly appointed by the Trustee pursuant to Section 17.10) and
delivered in exchange for the Notes then outstanding, upon surrender of such Notes then outstanding.

Section 10.05.      Evidence of Compliance of Supplemental Indenture to Be Furnished
Trustee.  In addition to the documents required by Section 17.05, the Trustee shall receive an Officer's Certificate and an Opinion of
Counsel as conclusive evidence that any supplemental indenture executed pursuant hereto complies with the requirements of this Article
10 and is permitted or authorized by this Indenture.

ARTICLE 11

Consolidation, Merger, Sale, Conveyance and Lease

Section 11.01.      Company May Consolidate, Etc. on Certain Terms.  Subject to
the provisions of Section 11.02, the Company shall not consolidate with, merge with or into, or sell, convey, transfer or lease all or
substantially all of its properties and assets to another Person, unless:

	the resulting, surviving or transferee Person (the "Successor Company"), if not the
Company, shall be a corporation organized and existing under the laws of the United States of America, any State thereof or the District of
Columbia, and the Successor Company (if not the Company) shall expressly assume, by supplemental indenture all of the obligations of the
Company under the Notes and this Indenture; and

	immediately after giving effect to such transaction, no Default or Event of Default shall have occurred and be continuing under this
Indenture.

For purposes of this Section 11.01, the sale, conveyance, transfer or lease of all or substantially all of the properties and assets of one or
more Subsidiaries of the Company to another Person, which properties and assets, if held by the Company instead of such Subsidiaries,
would constitute all or substantially all of the properties and assets of the Company on a consolidated basis, shall be deemed to be the sale,
conveyance, transfer or lease of all or substantially all of the properties and assets of the Company to another Person.

                                              49

Section 11.02.      Successor Corporation to Be Substituted.  In case of any such
consolidation, merger, sale, conveyance, transfer or lease and upon the assumption by the Successor Company, by supplemental indenture,
executed and delivered to the Trustee and satisfactory in form to the Trustee, of the due and punctual payment of the principal of and
accrued and unpaid interest on all of the Notes, the due and punctual delivery or payment, as the case may be, of any consideration due
upon conversion of the Notes and the due and punctual performance of all of the covenants and conditions of this Indenture to be performed
by the Company, such Successor Company (if not the Company) shall succeed to and, except in the case of a lease of all or substantially all
of the Company's properties and assets, shall be substituted for the Company, with the same effect as if it had been named herein as the
party of the first part.  Such Successor Company thereupon may cause to be signed, and may issue either in its own name or in the name of
the Company any or all of the Notes issuable hereunder which theretofore shall not have been signed by the Company and delivered to the
Trustee; and, upon the order of such Successor Company instead of the Company and subject to all the terms, conditions and limitations in
this Indenture prescribed, the Trustee shall authenticate and shall deliver, or cause to be authenticated and delivered, any Notes that
previously shall have been signed and delivered by the Officers of the Company to the Trustee for authentication, and any Notes that such
Successor Company thereafter shall cause to be signed and delivered to the Trustee for that purpose.  All the Notes so issued shall in all
respects have the same legal rank and benefit under this Indenture as the Notes theretofore or thereafter issued in accordance with the terms
of this Indenture as though all of such Notes had been issued at the date of the execution hereof.  In the event of any such consolidation,
merger, sale, conveyance or transfer (but not in the case of a lease), upon compliance with this Article 11 the Person named as the
"Company" in the first paragraph of this Indenture (or any successor that shall thereafter have become such in the manner
prescribed in this Article 11) may be dissolved, wound up and liquidated at any time
thereafter and, except in the case of a lease, such Person shall be released from its liabilities as obligor and maker of the Notes and from its
obligations under this Indenture and the Notes.

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

Section 11.03.      Opinion of Counsel to Be Given to Trustee.  No such consolidation, merger, sale, conveyance,
transfer or lease shall be effective unless the Trustee shall receive an Officer's Certificate and an Opinion of Counsel as conclusive evidence
that any such consolidation, merger, sale, conveyance, transfer or lease and any such assumption and, if a supplemental indenture is
required in connection with such transaction, such supplemental indenture, complies with the provisions of this Article 11.

ARTICLE 12

Immunity of Incorporators, Stockholders, Officers and Directors

Section 12.01.      Indenture and Notes Solely Corporate Obligations.  No recourse for the payment of the principal
of or accrued and unpaid interest on any Note, nor for any claim based thereon or otherwise in respect thereof, and no recourse under or upon any obligation, covenant

                                              50

or agreement of the Company in this Indenture or in any supplemental indenture or in any Note, nor because
of the creation of any indebtedness represented thereby, shall be had against any incorporator, stockholder, employee, agent, Officer or
director or Subsidiary, as such, past, present or future, of the Company or of any successor corporation, either directly or through the
Company or any successor corporation, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment
or penalty or otherwise; it being expressly understood that all such liability is hereby expressly waived and released as a condition of, and as
a consideration for, the execution of this Indenture and the issue of the Notes.

ARTICLE 13

[Intentionally Omitted]

ARTICLE 14

Conversion of Notes

Section 14.01.      Conversion Privilege.  

	Subject to and upon compliance with the provisions of this Article 14, each Holder of a Note shall have the
right, at such Holder's option, to convert all or any portion (if the portion to be converted is $1,000 principal amount or a multiple thereof) of
such Note (i) subject to satisfaction of the conditions described in Section 14.01(b), at any time prior to the close of business on the Business
Day immediately preceding February 1, 2018 under the circumstances and during the periods set forth in Section 14.01(b), and (ii) regardless
of the conditions described in Section 14.01(b), on or after February 1, 2018 and prior to the close of business on the second Scheduled
Trading Day immediately preceding the Maturity Date, in each case, at an initial conversion rate of 61.6770 shares of Common Stock (subject
to adjustment as provided in this Article 14, the "Conversion Rate")
per $1,000 principal amount of Notes (subject to, and in accordance with, the settlement provisions of Section 14.02, the
"Conversion Obligation").

	

	Prior to the close of business on the Business Day immediately
preceding February 1, 2018, a Holder may surrender all or any portion of its Notes for conversion at any time during the five Business Day
period immediately after any five consecutive Trading Day period (the "Measurement Period") in which the Trading Price
per $1,000 principal amount of Notes, as determined following a request by a Holder of Notes in accordance with this Section 14.01(b), for
each Trading Day of the Measurement Period was less than 98% of the product of the Last Reported Sale Price of the Common Stock and
the Conversion Rate on each such Trading Day.  The Trading Prices shall be determined by the Bid Solicitation Agent pursuant to this
Section 14.01(b) and the definition of Trading Price set forth in this Indenture.  The Company shall provide written notice to the Bid
Solicitation Agent of the three independent nationally recognized securities dealers selected by the Company pursuant to the definition of
Trading Price, along with appropriate contact information for each.  The Bid Solicitation Agent shall have no obligation to determine the
Trading Price per $1,000 principal amount of Notes unless the Company has requested such determination, and the Company shall have no
obligation to make such request unless a Holder of Notes provides the Company with reasonable evidence that the Trading Price per $1,000
principal amount of Notes would be less than 98% of

                                              51

the product of the Last Reported Sale Price of the Common Stock and the Conversion
Rate, at which time the Company shall instruct the Bid Solicitation Agent to determine the Trading Price per $1,000 principal amount of Notes
beginning on the next Trading Day and on each successive Trading Day until the Trading Price per $1,000 principal amount of Notes is
greater than or equal to 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate.  If the Company
does not instruct the Bid Solicitation Agent in writing to determine the Trading Price per $1,000 principal amount of Notes when obligated as
provided in the preceding sentence, or if the Company so instructs the Bid Solicitation Agent to obtain bids and the Bid Solicitation Agent fails
to make such determination, then, in either case, the Trading Price per $1,000 principal amount of Notes shall be deemed to be less than
98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate on each Trading Day of such failure.  If
the Trading Price condition set forth above has been met, the Company shall so notify the Holders, the Trustee and the Conversion Agent (if
other than the Trustee) in writing.  If, at any time after the Trading Price condition set forth above has been met, the Trading Price per $1,000
principal amount of Notes is greater than or equal to 98% of the product of the Last Reported Sale Price of the Common Stock and the
Conversion Rate for such date, the Company shall so notify the Holders of the Notes, the Trustee and the Conversion Agent (if other than the
Trustee).  

	If, prior to the close of business on the Business Day immediately preceding February 1, 2018, the
Company elects to:

	issue to all or substantially all holders of the Common Stock any rights, options or warrants (other than in
connection with a stockholder rights plan) entitling them, for a period of not more than 45 calendar days after the announcement date of such
issuance, to subscribe for or purchase shares of the Common Stock at a price per share that is less than the average of the Last Reported
Sale Prices of the Common Stock for the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately
preceding the date of announcement of such issuance; or

	distribute to all or substantially all holders of the Common Stock the Company's assets, debt securities or rights to purchase securities of
the Company, which distribution has a per share value, as reasonably determined by the Board of Directors, exceeding 10% of the Last
Reported Sale Price of the Common Stock on the Trading Day preceding the date of announcement for such distribution,

then, in either case, the Company shall notify all Holders of the Notes, the Trustee and the Conversion Agent (if other than the Trustee) at
least 55 Scheduled Trading Days prior to the Ex-Dividend Date for such issuance or distribution.  Once the Company has given such notice,
a Holder may surrender all or any portion of its Notes for conversion at any time until the earlier of (1) the close of business on the Business
Day immediately preceding the Ex-Dividend Date for such issuance or distribution and (2) the Company's announcement that such issuance
or distribution will not take place, in each case, even if the Notes are not otherwise convertible at such time.

                                              52

	If (i) a transaction or event that constitutes (x) a Fundamental Change or (y) a Make-
Whole Fundamental Change occurs prior to the close of business on the Business Day immediately preceding February 1, 2018, regardless
of whether a Holder has the right to require the Company to repurchase the Notes pursuant to Section 15.02, or (ii) if the Company is a
party to a consolidation, merger, binding share exchange, or transfer or lease of all or substantially all of its assets prior to the close of
business on the Business Day immediately preceding February 1, 2018, pursuant to which the Common Stock would be converted into cash,
securities or other assets, then, in each case, all or any portion of a Holder's Notes may be surrendered for conversion at any time from or
after the date that is 55 Scheduled Trading Days prior to the anticipated effective date of the transaction (or, if later, the Business Day after
the Company gives notice of such transaction) until 35 Trading Days after the actual effective date of such transaction, or if such transaction
also constitutes a Fundamental Change, until the related Fundamental Change Repurchase Date.  The Company shall notify Holders, the
Trustee and the Conversion Agent (if other than the Trustee) (i) at least 55 Scheduled Trading Days prior to the anticipated effective date of
such transaction, or (ii) if later, the date the Company publicly announces such transaction.

	Prior to the close of business on the Business Day immediately preceding February 1, 2018, a Holder may
surrender all or any portion of its Notes for conversion at any time during any calendar quarter commencing after the calendar quarter ending
on December 31, 2013 (and only during such calendar quarter), if the Last Reported Sale Price of the Common Stock for at least 20
Trading Days (whether or not consecutive) during the period of 30 consecutive Trading Days ending on the last Trading Day of the
immediately preceding calendar quarter is greater than or equal to 130% of the Conversion Price on each applicable Trading Day.  The
Conversion Agent, on behalf of the Company, shall determine at the beginning of each calendar quarter commencing after
December 31, 2013 whether the Notes may be surrendered for conversion in accordance with this clause (iv) and shall notify the
Company and the Trustee if the Notes become convertible in accordance with this clause (iv).

Section 14.02.      Conversion Procedure; Settlement Upon
Conversion.  

	Subject to this Section 14.02, Section 14.03(b) and Section 14.07(a), upon conversion of any Note, the
Company shall pay or deliver, as the case may be, to the converting Holder, in respect of each $1,000 principal amount of Notes being
converted, cash ("Cash Settlement"), shares of Common Stock, together with cash, if applicable, in lieu of delivering any
fractional share of Common Stock in accordance with subsection (j) of this Section 14.02 ("Physical Settlement") or a
combination of cash and shares of Common Stock, together with cash, if applicable, in lieu of delivering  any fractional share of Common
Stock in accordance with subsection (j) of this Section 14.02 ("Combination Settlement"), at its election, as set forth in
this Section 14.02.

	All conversions occurring on or after February 1, 2018 shall be settled using the same Settlement Method.  

                                              53

	Except for any conversions that occur during the period from, and including, February 1, 2018 to the close of business on the second
Scheduled Trading Day immediately preceding the Maturity Date, the Company shall use the same Settlement Method for all conversions
occurring on the same Conversion Date, but the Company shall not have any obligation to use the same Settlement Method with respect to
conversions that occur on different Conversion Days.

	If, in respect of any Conversion Date (or the period described in the third immediately succeeding set of
parentheses, as the case may be), the Company elects to deliver a notice (the "Settlement Notice") of the relevant
Settlement Method in respect of such Conversion Date (or such period, as the case may be), the Company, through the Trustee, shall deliver
such Settlement Notice to converting Holders no later than the close of business on the Trading Day immediately following the relevant
Conversion Date (or, in the case of any conversions occurring during the period from, and including, February 1, 2018 to the close of
business on the second Scheduled Trading Day immediately preceding the Maturity Date, no later than the close of business on Business
Day immediately preceding February 1, 2018).  If the Company does not elect a Settlement Method prior to the deadline set forth in the
immediately preceding sentence, the Company shall no longer have the right to elect Cash Settlement or Physical Settlement and the
Company shall be deemed to have elected Combination Settlement in respect of its Conversion Obligation, and the Specified Dollar Amount
per $1,000 principal amount of Notes shall be equal to $1,000.  Such Settlement Notice shall specify the relevant Settlement Method and in
the case of an election of Combination Settlement, the relevant Settlement Notice shall indicate the Specified Dollar Amount per $1,000
principal amount of Notes.  If the Company delivers a Settlement Notice electing Combination Settlement in respect of its Conversion
Obligation but does not indicate a Specified Dollar Amount per $1,000 principal amount of Notes in such Settlement Notice, the Specified
Dollar Amount per $1,000 principal amount of Notes shall be deemed to be $1,000.

	The cash, shares of Common Stock or combination of cash and shares of Common Stock in respect of
any conversion of Notes (the "Settlement Amount") shall be computed as follows:

	if the Company elects to satisfy its Conversion Obligation in respect of such conversion by Physical Settlement, the Company shall
deliver to the converting Holder in respect of each $1,000 principal amount of Notes being converted a number of shares of Common Stock
equal to the Conversion Rate in effect on the Conversion Date;

	if the Company elects to satisfy its Conversion Obligation in respect of such conversion by Cash Settlement, the Company shall pay to
the converting Holder in respect of each $1,000 principal amount of Notes being converted cash in an amount equal to the sum of the Daily
Conversion Values for each of the 50 consecutive Trading Days during the related Observation Period; and

                                              54

	if the Company elects (or is deemed to have elected) to satisfy its Conversion Obligation in respect of such conversion by Combination
Settlement, the Company shall pay or deliver, as the case may be, in respect of each $1,000 principal amount of Notes being converted, a
Settlement Amount equal to the sum of the Daily Settlement Amounts for each of the 50 consecutive Trading Days during the related
Observation Period.  

	The Daily Settlement Amounts (if applicable) and the Daily Conversion Values (if applicable) shall be determined by the Company
promptly following the last day of the Observation Period.  Promptly after such determination of the Daily Settlement Amounts or the Daily
Conversion Values, as the case may be, and the amount of cash payable in lieu of delivering any fractional share of Common Stock, the
Company shall notify the Trustee and the Conversion Agent (if other than the Trustee) of the Daily Settlement Amounts or the Daily
Conversion Values, as the case may be, and the amount of cash payable in lieu of delivering fractional shares of Common Stock.  The
Trustee and the Conversion Agent (if other than the Trustee) shall have no responsibility for any such determination.

	Subject to Section 14.02(e), before any Holder of a
Note shall be entitled to convert a Note as set forth above, such Holder shall  in the case of a Global Note, comply with the procedures of the
Depositary in effect at that time and, if required, pay funds equal to interest payable on the next Interest Payment Date to which such Holder
is not entitled as set forth in Section 14.02(h) and  in the case of a Physical Note (1) complete, manually sign and deliver an irrevocable
notice to the Conversion Agent as set forth in the Form of Notice of Conversion (or a facsimile thereof) (a "Notice of
Conversion") at the office of the Conversion Agent and state in writing therein the principal amount of Notes to be converted and
the name or names (with addresses) in which such Holder wishes the certificate or certificates for any shares of Common Stock to be
delivered upon settlement of the Conversion Obligation to be registered, (2) surrender such Notes, duly endorsed to the Company or in blank
(and accompanied by appropriate endorsement and transfer documents), at the office of the Conversion Agent, (3) if required, furnish
appropriate endorsements and transfer documents and (4) if required, pay funds equal to interest payable on the next Interest Payment Date
to which such Holder is not entitled as set forth in Section 14.02(h).  The Trustee (and, if different, the Conversion Agent) shall notify the
Company of any conversion pursuant to this Article 14 on the Conversion Date for such conversion.  No Notice of Conversion with respect to
any Notes may be surrendered by a Holder thereof if such Holder has also delivered a Fundamental Change Repurchase Notice to the
Company in respect of such Notes and has not validly withdrawn such Fundamental Change Repurchase Notice in accordance with Section
15.03.
If more than one Note shall be surrendered for conversion at one time by the same Holder, the Conversion Obligation with respect to
such Notes shall be computed on the basis of the aggregate principal amount of the Notes (or specified portions thereof to the extent
permitted thereby) so surrendered.

	A Note shall be deemed to have been converted immediately prior to the close of business on the date
(the "Conversion Date") that the Holder has complied with the requirements set forth in subsection (b) above.  The Company shall pay or deliver, as the case

                                              55

may be, the consideration due in respect of the Conversion Obligation on the third Business Day
immediately following the relevant Conversion Date, if the Company elects Physical Settlement (provided that, with respect to any
Conversion Date occurring on or after February 1, 2018, the Company shall settle any such conversion on the Maturity Date), or on the third
Business Day immediately following the last Trading Day of the relevant Observation Period, in the case of any other Settlement Method.  If
any shares of Common Stock are due to converting Holders, the Company shall issue or cause to be issued, and deliver to the Conversion
Agent or to such Holder, or such Holder's nominee or nominees, certificates or a book-entry transfer through the Depositary for the full
number of shares of Common Stock to which such Holder shall be entitled in satisfaction of the Company's Conversion Obligation.

	In case any Note shall be surrendered for partial conversion, the Company shall execute and the Trustee
shall authenticate and deliver to or upon the written order of the Holder of the Note so surrendered a new Note or Notes in authorized
denominations in an aggregate principal amount equal to the unconverted portion of the surrendered Note, without payment of any service
charge by the converting Holder but, if required by the Company or Trustee, with payment of a sum sufficient to cover any documentary,
stamp or similar issue or transfer tax or similar governmental charge required by law or that may be imposed in connection therewith as a
result of the name of the Holder of the new Notes issued upon such conversion being different from the name of the Holder of the old Notes
surrendered for such conversion.

	If a Holder submits a Note for conversion, the Company shall pay any
documentary, stamp or similar issue or transfer tax due on the issue of any shares of Common Stock upon conversion, unless the tax is due
because the Holder requests such shares to be issued in a name other than the Holder's name, in which case the Holder shall pay that tax.
The Conversion Agent may refuse to deliver the certificates representing the shares of Common Stock being issued in a name other than the
Holder's name until the Trustee receives a sum sufficient to pay any tax that is due by such Holder in accordance with the immediately
preceding sentence.  

	Except as provided in Section 14.04, no adjustment shall be made for dividends on any shares of Common Stock issued upon the
conversion of any Note as provided in this Article 14.

	Upon the conversion of an interest in a Global Note, the Trustee, or the Custodian at the direction of the Trustee, shall make a notation
on such Global Note as to the reduction in the principal amount represented thereby.  The Company shall notify the Trustee in writing of any
conversion of Notes effected through any Conversion Agent other than the Trustee.

	Upon conversion, a Holder shall not receive any separate cash payment for accrued and unpaid interest, if
any, except as set forth below.  The Company's settlement of the full Conversion Obligation shall be deemed to satisfy in full its obligation to
pay the principal amount of the Note and accrued and unpaid interest, if any, to, but not including, the relevant Conversion Date. As a result,
accrued and unpaid interest, if any, to, but not including, the relevant Conversion Date shall be deemed to be paid in full rather than
cancelled, extinguished or forfeited.  Upon a conversion of Notes into a combination of cash and shares of Common Stock, accrued and
unpaid interest will be deemed to be paid first out of the cash paid upon such conversion.  Notwithstanding the foregoing, if Notes are converted after the close of business on

                                              56

a Regular Record Date, Holders of such Notes as of the close of business on such Regular Record
Date will receive the full amount of interest payable on such Notes on the corresponding Interest Payment Date notwithstanding the
conversion.  Notes surrendered for conversion during the period from the close of business on any Regular Record Date to the open of
business on the immediately following Interest Payment Date must be accompanied by funds equal to the amount of interest payable on the
Notes so converted; provided that no such payment shall be required (1) for conversions following the Regular Record Date
immediately preceding the Maturity Date; (2) if the Company has specified a Fundamental Change Repurchase Date that is after a Regular
Record Date and on or prior to the Scheduled Trading Day immediately succeeding the corresponding Interest Payment Date; or (3) to the
extent of any Defaulted Amounts, if any Defaulted Amounts exists at the time of conversion with respect to such Note.  Therefore, for the
avoidance of doubt, all Holders of record on the Regular Record Date immediately preceding the Maturity Date and any Fundamental Change
Repurchase Date as described in the immediately preceding sentence shall receive the full interest payment due on the Maturity Date or
other applicable Interest Payment Date regardless of whether their Notes have been converted following such Regular Record Date.

	The Person in whose name the certificate for any shares of Common Stock delivered upon conversion is
registered shall be treated as a stockholder of record as of the close of business on the relevant Conversion Date (if the Company elects to
satisfy the related Conversion Obligation by Physical Settlement) or the last Trading Day of the relevant Observation Period (if the Company
elects to satisfy the related Conversion Obligation by Combination Settlement), as the case may be.  Upon a conversion of Notes, such
Person shall no longer be a Holder of such Notes surrendered for conversion.

	The Company shall not issue any fractional share of Common Stock upon conversion of the Notes and
shall instead pay cash in lieu of delivering any fractional share of Common Stock issuable upon conversion based on the Daily VWAP on the
relevant Conversion Date (in the case of Physical Settlement) or based on the Daily VWAP on the last Trading Day of the relevant
Observation Period (in the case of Combination Settlement). For each Note surrendered for conversion, if the Company has elected (or is
deemed to have elected) Combination Settlement, the full number of shares that shall be issued upon conversion thereof shall be computed
on the basis of the aggregate Daily Settlement Amounts for the relevant Observation Period and any fractional shares remaining after such
computation shall be paid in cash.  

Section 14.03.      Increased Conversion Rate Applicable to Certain Notes Surrendered in
Connection with Make-Whole Fundamental Changes.  

	If a Make-Whole Fundamental Change occurs
or becomes effective prior to the Maturity Date and a Holder elects to convert its Notes in connection with such Make-Whole Fundamental
Change, the Company shall, under the circumstances described below, increase the Conversion Rate for the Notes so surrendered for
conversion by a number of additional shares of Common Stock (the "Additional Shares"), as described below.  A
conversion of Notes shall be deemed for these purposes to be "in connection with" such Make-Whole Fundamental Change if the
relevant Notice of Conversion is received by the Conversion Agent from, and including, the Effective Date of the Make-Whole Fundamental
Change up to, and including, the Business Day immediately prior to the related Fundamental Change Repurchase Date (or, in the case of a Make-Whole Fundamental Change

                                              57

that would have been a Fundamental Change but for subclause (i) of the proviso in clause (b) of
the definition thereof, the 35th Trading Day immediately following the Effective Date of such Make-Whole Fundamental Change).

	Upon surrender of Notes for conversion in connection with a Make-Whole
Fundamental Change pursuant to Section 14.01(b)(iii), the Company shall, at its option, satisfy the related Conversion Obligation by Physical
Settlement, Cash Settlement or Combination Settlement in accordance with Section 14.02 based on the Conversion Rate as increased to
reflect the Additional Shares pursuant to the table below; provided, however, that if, at the effective time of a Make-Whole
Fundamental Change described in clause (b) of the definition of Fundamental Change, the Reference Property following such Make-Whole
Fundamental Change is composed entirely of cash, for any conversion of Notes following the Effective Date of such Make-Whole
Fundamental Change, the Conversion Obligation shall be calculated based solely on the Stock Price for the transaction and shall be deemed
to be an amount of cash per $1,000 principal amount of converted Notes equal to the Conversion Rate (including any adjustment for
Additional Shares), multiplied by such Stock Price.  In such event, the Conversion Obligation shall be determined and paid to Holders
in cash on the third Business Day following the Conversion Date. The Company shall notify the Holders of Notes of the Effective Date of
any Make-Whole Fundamental Change no later than five Business Days after such Effective Date.

	The number of Additional Shares, if any, by which the Conversion Rate shall be increased shall be
determined by reference to the table below, based on the date on which the Make-Whole Fundamental Change occurs or becomes effective
(the "Effective Date") and the price (the "Stock Price") paid (or deemed to be paid) per share of the
Common Stock in the Make-Whole Fundamental Change.  If the holders of the Common Stock receive in exchange for their Common Stock
only cash in a Make-Whole Fundamental Change described in clause (b) of the definition of Fundamental Change, the Stock Price shall be
the cash amount paid per share.  Otherwise, the Stock Price shall be the average of the Last Reported Sale Prices of the Common Stock
over the five Trading Day period ending on, and including, the Trading Day immediately preceding the Effective Date of the Make-Whole
Fundamental Change.  The Board of Directors shall make appropriate adjustments to the Stock Price, in its good faith determination, to
account for any adjustment to the Conversion Rate that becomes effective, or any event requiring an adjustment to the Conversion Rate
where the Ex-Dividend Date of the event occurs, during such five consecutive Trading Day period.

	The Stock Prices set forth in the column headings of the table below shall be adjusted as of any date on which the Conversion Rate of
the Notes is otherwise adjusted.  The adjusted Stock Prices shall equal the Stock Prices applicable immediately prior to such adjustment,
multiplied by a fraction, the numerator of which is the Conversion Rate immediately prior to such adjustment giving rise to the Stock
Price adjustment and the denominator of which is the Conversion Rate as so adjusted.  The number of Additional Shares set forth in the table
below shall be adjusted in the same manner and at the same time as the Conversion Rate as set forth in Section 14.04.

	The following table sets forth the number of Additional Shares of Common Stock by which the Conversion Rate shall be
increased per $1,000 principal amount of Notes pursuant to this Section 14.03 for each Stock Price and Effective Date set forth below:

                                              58

	 	Stock Price

	
Effective Date
	
$12.01
	
$13.00
	
$14.00
	
$15.00
	
$16.21
	
$18.00
	
$20.00
	
$25.00
	
$30.00
	
$35.00
	
$40.00
	
$50.00
	
$60.00

	
August 13, 2013
	
21.5869
	
19.3188
	
16.6042
	
14.3756
	
12.1768
	
9.6878
	
7.6467
	
4.5467
	
2.9245
	
1.9933
	
1.4180
	
0.7833
	
0.4633

	
August 1, 2014
	
21.5869
	
19.0084
	
16.1572
	
13.8294
	
11.5559
	
9.0113
	
6.9559
	
3.9315
	
2.4221
	
1.5931
	
1.1002
	
0.5783
	
0.3249

	
August 1, 2015
	
21.5869
	
18.4890
	
15.4575
	
13.0114
	
10.6449
	
8.0442
	
5.9994
	
3.1275
	
1.8024
	
1.1261
	
0.7493
	
0.3758
	
0.2030

	
August 1, 2016
	
21.5869
	
17.6647
	
14.3864
	
11.7757
	
9.2990
	
6.6553
	
4.6628
	
2.0941
	
1.0684
	
0.6142
	
0.3892
	
0.1869
	
0.0959

	
August 1, 2017
	
21.5869
	
16.3335
	
12.6239
	
9.7394
	
7.1016
	
4.4594
	
2.6625
	
0.7893
	
0.2865
	
0.1360
	
0.0796
	
0.0325
	
0.0076

	
August 1, 2018
	
21.5869
	
15.2461
	
9.7516
	
4.9897
	
0.0000
	
0.0000
	
0.0000
	
0.0000
	
0.0000
	
0.0000
	
0.0000
	
0.0000
	
0.0000

The exact Stock Prices and Effective Dates may not be set forth in the table above, in which case:

	if the Stock Price is between two Stock Prices in the table above or the Effective Date is between two Effective Dates in the table above,
the number of Additional Shares by which the Conversion Rate shall be increased shall be determined by a straight-line interpolation between
the number of Additional Shares set forth for the higher and lower Stock Prices and the earlier and later Effective Dates, as applicable, based
on a 365-day year;

	if the Stock Price is greater than $60.00 per share (subject to adjustment in the same manner as the Stock Prices set forth in the column
headings of the table above pursuant to subsection (d) above), no Additional Shares shall be added to the Conversion Rate; and 

	if the Stock Price is less than $12.01 per share (subject to adjustment in the same manner as the Stock
Prices set forth in the column headings of the table above pursuant to subsection (d) above), no Additional Shares shall be added to the
Conversion Rate.

Notwithstanding the foregoing, in no event shall the Conversion Rate per $1,000 principal amount of Notes exceed 83.2639 shares of
Common Stock, subject to adjustment in the same manner as the Conversion Rate pursuant to Section 14.04.

	Nothing in this Section 14.03 shall prevent an adjustment to the Conversion Rate pursuant to Section 14.04 in respect of a Make-Whole Fundamental Change.

Section 14.04.      Adjustment of Conversion Rate.  The Conversion Rate shall be adjusted
from time to time by the Company if any of the following events occurs, except that the Company shall not make any adjustments to the
Conversion Rate if Holders of the Notes participate (other than in the case of a share split or share combination), at the same time and upon
the same terms as holders of the Common Stock and solely as a result of holding the Notes, in any of the transactions described in this
Section 14.04, without having to convert their Notes, as if they held a number of shares of Common Stock equal to the Conversion Rate,
multiplied by the principal amount (expressed in thousands) of Notes held by such
Holder.

	If the Company exclusively issues shares of Common Stock as a dividend or distribution on shares of the
Common Stock, or if the Company effects a share split or share combination, the Conversion Rate shall be adjusted based on the following formula:

                                              59

where,

CR0=the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date of such
dividend or distribution, or immediately prior to the open of business on the Effective Date of such share split or share combination, as
applicable;

CR'=the Conversion Rate in effect immediately after the open of business on such Ex-Dividend Date or Effective Date;

OS0=the number of shares of Common Stock outstanding immediately prior to the open of business on such Ex-
Dividend Date or Effective Date; and

OS'=the number of shares of Common Stock outstanding immediately after giving effect to such dividend, distribution, share
split or share combination.

Any adjustment made under this Section 14.04(a) shall become effective immediately after the open of business on the Ex-Dividend Date
for such dividend or distribution, or immediately after the open of business on the Effective Date for such share split or share combination, as
applicable.  If any dividend or distribution of the type described in this Section 14.04(a) is declared but not so paid or made, or any share split
or combination of the type described in this Section 14.04(a) is announced but the outstanding
shares of Common Stock are not split or combined, as the case may be, the Conversion Rate shall be immediately readjusted,
effective as of the date the Board of Directors determines not to pay such dividend or distribution, or not to split or combine the outstanding
shares of Common Stock, as the case may be, to the Conversion Rate that would then be in effect if such dividend or distribution had not
been declared or such share split or combination had not been announced.

	If the Company issues to all or substantially all holders of the Common Stock any rights, options or
warrants entitling them, for a period of not more than 45 calendar days after the announcement date of such issuance, to subscribe for or
purchase shares of the Common Stock at a price per share that is less than the average of the Last Reported Sale Prices of the Common
Stock for the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the date of announcement
of such issuance, the Conversion Rate shall be increased based on the following formula:

where,

CR0=the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date for such
issuance;

                                              60

CR'=the Conversion Rate in effect immediately after the open of business on such Ex-Dividend Date;

OS0=the number of shares of Common Stock outstanding immediately prior to the open of business on such Ex-
Dividend Date;

X=the total number of shares of Common Stock issuable pursuant to such rights, options or warrants; and

Y=the number of shares of Common Stock equal to the aggregate price payable to exercise such rights, options or warrants,
divided by the average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period ending on,
and including, the Trading Day immediately preceding the date of announcement of the issuance of such rights, options or warrants.

Any increase made under this Section 14.04(b) shall be made successively whenever any such rights, options or warrants are issued and
shall become effective immediately after the open of business on the Ex-Dividend Date for such issuance.  To the extent that shares of the
Common Stock are not delivered after the expiration of such rights, options or warrants, the Conversion Rate shall be decreased to the
Conversion Rate that would then be in effect had the increase with respect to the issuance of such rights, options or warrants been made on
the basis of delivery of only the number of shares of Common Stock actually delivered.  If such rights, options or warrants are not so issued,
the Conversion Rate shall be decreased to the Conversion Rate that would then be in effect if such Ex-Dividend Date for such issuance had
not occurred.

For purposes of this Section 14.04(b) and Section 14.01(b)(ii)(A), in determining whether any rights, options or warrants entitle the
holders to subscribe for or purchase shares of the Common Stock at less than such average of the Last Reported Sale Prices of the Common
Stock for the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the date of announcement
for such issuance, and in determining the aggregate offering price of such shares of Common Stock, there shall be taken into account any
consideration received by the Company for such rights, options or warrants and any amount payable on exercise or conversion thereof, the
value of such consideration, if other than cash, to be determined by the Board of Directors.  

	If the Company distributes shares of its Capital Stock, evidences of its indebtedness, other assets or
property of the Company or rights, options or warrants to acquire its Capital Stock or other securities of the Company, to all or substantially all
holders of the Common Stock, excluding  dividends, distributions or issuances as to which an adjustment was effected pursuant to Section
14.04(a) or Section 14.04(b),  dividends or distributions paid exclusively in cash as to which an adjustment was effected pursuant to Section
14.04(d), and  Spin-Offs as to which the provisions set forth below in this Section 14.04(c) shall apply (any of such shares of Capital
Stock, evidences of indebtedness, other assets or property or rights, options or warrants to acquire Capital Stock or other securities, the
"Distributed Property"), then the Conversion Rate shall be increased based on the following formula:

                                              61

where,

CR0=the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date for such
distribution;

CR'=the Conversion Rate in effect immediately after the open of business on such Ex-Dividend Date;

SP0=the average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day
period ending on, and including, the Trading Day immediately preceding the Ex-Dividend Date for such distribution; and

FMV=the fair market value (as determined by the Board of Directors) of the Distributed Property with respect to each
outstanding share of the Common Stock on the Ex-Dividend Date for such distribution.

Any increase made under the portion of this Section 14.04(c) above shall become effective immediately after the open of business on the
Ex-Dividend Date for such distribution.  If such distribution is not so paid or made, the Conversion Rate shall be decreased to the Conversion
Rate that would then be in effect if such distribution had not been declared.  Notwithstanding the foregoing, if "FMV" (as defined
above) is equal to or greater than "SP0" (as defined above), in lieu of the foregoing increase, each Holder of a
Note shall receive, in respect of each $1,000 principal amount thereof, at the same time and upon the same terms as holders of the Common
Stock receive the Distributed Property, the amount and kind of Distributed Property such Holder would have received if such Holder owned a
number of shares of Common Stock equal to the Conversion Rate in effect on the Ex-Dividend Date for the distribution.  If the Board of
Directors determines the "FMV" (as defined above) of any distribution for purposes of this Section 14.04(c) by reference to the
actual or when-issued trading market for any securities, it shall in doing so consider the prices in such market over the same period used in
computing the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period ending on, and including, the
Trading Day immediately preceding the Ex-Dividend Date for such distribution.  

With respect to an adjustment pursuant to this Section 14.04(c) where there has been a payment of a dividend or other distribution on the
Common Stock of shares of Capital Stock of any class or series, or similar equity interest, of or relating to a Subsidiary or other business unit
of the Company, that are, or, when issued, will be, listed or admitted for trading on a U.S. national securities exchange (a "Spin-
Off"), the Conversion Rate shall be increased based on the following formula:

where,

                                              62

CR0=the Conversion Rate in effect immediately prior to the end of the Valuation Period;

CR'=the Conversion Rate in effect immediately after the end of the Valuation Period;

FMV0=the average of the Last Reported Sale Prices of the Capital Stock or similar equity interest distributed to
holders of the Common Stock applicable to one share of the Common Stock (determined by reference to the definition of Last Reported Sale
Price as set forth in Section 1.01 as if references therein to Common Stock were to such Capital Stock or similar equity interest) over the first
10 consecutive Trading Day period after, and including, the Ex-Dividend Date of the Spin-Off (the "Valuation Period");
and

MP0=the average of the Last Reported Sale Prices of the Common Stock over the Valuation Period.

The adjustment to the Conversion Rate under the preceding paragraph shall occur on the last Trading Day of the Valuation Period;
provided that in respect of any conversion of Notes during the Valuation Period, references in the portion of this Section 14.04(c)
related to Spin-Offs with respect to 10 Trading Days shall be deemed to be replaced with such lesser number of Trading Days as have
elapsed between the Ex-Dividend Date of such Spin-Off and the Conversion Date in determining the Conversion Rate.  If the Ex-Dividend
Date of the Spin-Off is after the 10th Trading Day immediately preceding, and including, the end of any Observation Period in respect of a
conversion of Notes, references in this Section 14.04(c) related to Spin-Offs to 10 Trading Days will be deemed to be replaced, solely in
respect of that conversion of Notes, with such lesser number of Trading Days as have elapsed from, and including, the Ex-Dividend Date for
the Spin-Off to, and including, the last Trading Day of such Observation Period. If such dividend or distribution is not so paid or made, the
Conversion Rate shall be decreased to be the Conversion Rate that would then be in effect if such dividend or distribution had not been
declared.

For purposes of this Section 14.04(c) (and subject in all respect to Section 14.11),
rights, options or warrants distributed by the Company to all holders of the Common Stock entitling them to subscribe for or purchase shares
of the Company's Capital Stock, including Common Stock (either initially or under certain circumstances), which rights, options or warrants,
until the occurrence of a specified event or events ("Trigger Event"): (i) are deemed to be transferred with such shares of
the Common Stock; (ii) are not exercisable; and (iii) are also issued in respect of future issuances of the Common Stock, shall be deemed not
to have been distributed for purposes of this Section 14.04(c) (and no adjustment to the Conversion Rate under this Section 14.04(c) will be required) until the occurrence of the earliest Trigger Event, whereupon such rights,
options or warrants shall be deemed to have been distributed and an appropriate adjustment (if any is required) to the Conversion Rate shall
be made under this Section 14.04(c).  If any such right, option or warrant, including any such existing rights, options or warrants distributed
prior to the date of this Indenture, are subject to events, upon the occurrence of which such rights, options or warrants become exercisable to
purchase different securities, evidences of indebtedness or other assets, then the date of the occurrence of any and each such event shall be
deemed to be the date of distribution and Ex-Dividend Date with respect to new rights, options or warrants with such rights (in which case the
existing rights, options or warrants shall be

                                              63

deemed to terminate and expire on such date without exercise by any of the holders thereof).  In
addition, in the event of any distribution (or deemed distribution) of rights, options or warrants, or any Trigger Event or other event (of the type
described in the immediately preceding sentence) with respect thereto that was counted for purposes of calculating a distribution amount for
which an adjustment to the Conversion Rate under this Section 14.04(c) was made, (1) in the case of any such rights, options or warrants
that shall all have been redeemed or purchased without exercise by any holders thereof, upon such final redemption or purchase (x) the
Conversion Rate shall be readjusted as if such rights, options or warrants had not been issued and (y) the Conversion Rate shall then again
be readjusted to give effect to such distribution, deemed distribution or Trigger Event, as the case may be, as though it were a cash
distribution, equal to the per share redemption or purchase price received by a holder or holders of Common Stock with respect to such
rights, options or warrants (assuming such holder had retained such rights, options or warrants), made to all holders of Common Stock as of
the date of such redemption or purchase, and (2) in the case of such rights, options or warrants that shall have expired or been terminated
without exercise by any holders thereof, the Conversion Rate shall be readjusted as if such rights, options and warrants had not been
issued.

For purposes of Section 14.04(a), Section 14.04(b) and this Section 14.04(c), if any dividend or distribution to which this Section 14.04(c) is applicable also includes one
or both of: 

(A)a dividend or distribution of shares of Common Stock to which Section 14.04(a) is applicable (the "Clause A
Distribution"); or

(B)a dividend or distribution of rights, options or warrants to which Section 14.04(b) is applicable (the "Clause B
Distribution"),

then, in either case, (1) such dividend or distribution, other than the Clause A Distribution and the Clause B Distribution, shall be deemed
to be a dividend or distribution to which this Section 14.04(c) is applicable (the
"Clause C Distribution") and any Conversion Rate adjustment required by this Section 14.04(c) with respect to such
Clause C Distribution shall then be made, and (2) the Clause A Distribution and Clause B Distribution shall be deemed to immediately follow
the Clause C Distribution and any Conversion Rate adjustment required by Section 14.04(a) and Section 14.04(b) with respect thereto shall
then be made, except that, if determined by the Company (I) the "Ex-Dividend Date" of the Clause A Distribution and the Clause B
Distribution shall be deemed to be the Ex-Dividend Date of the Clause C Distribution and (II) any shares of Common Stock included in the
Clause A Distribution or Clause B Distribution shall be deemed not to be "outstanding immediately prior to the open of business on such
Ex-Dividend Date or Effective Date" within the meaning of Section 14.04(a) or "outstanding immediately prior to the open of
business on such Ex-Dividend Date" within the meaning of Section 14.04(b).

	If any cash dividend or distribution is made to all or substantially all holders of the Common Stock, the
Conversion Rate shall be adjusted based on the following formula:

                                              64

where,

CR0=the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date for such
dividend or distribution;

CR'=the Conversion Rate in effect immediately after the open of business on the Ex-Dividend Date for such dividend or
distribution;

SP0=the Last Reported Sale Price of the Common Stock on the Trading Day immediately preceding the Ex-Dividend Date for such dividend or distribution; and

C=the amount in cash per share the Company distributes to all or substantially all holders of the Common Stock.

Any increase pursuant to this Section 14.04(d) shall become effective immediately
after the open of business on the Ex-Dividend Date for such dividend or distribution.  If such dividend or distribution is not so paid, the
Conversion Rate shall be decreased, effective as of the date the Board of Directors determines not to make or pay such dividend or
distribution, to be the Conversion Rate that would then be in effect if such dividend or distribution had not been declared.  Notwithstanding the
foregoing, if "C" (as defined above) is equal to or greater than "SP0" (as defined above), in lieu of the
foregoing increase, each Holder of a Note shall receive, for each $1,000 principal amount of Notes, at the same time and upon the same
terms as holders of shares of the Common Stock, the amount of cash that such Holder would have received if such Holder owned a number
of shares of Common Stock equal to the Conversion Rate on the Ex-Dividend Date for such cash dividend or distribution.  

	If the Company or any of its Subsidiaries make a payment in respect of a tender or exchange offer for the
Common Stock, to the extent that the cash and value of any other consideration included in the payment per share of the Common Stock
exceeds the average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period commencing on,
and including, the Trading Day next succeeding the last date on which tenders or exchanges may be made pursuant to such tender or
exchange offer, the Conversion Rate shall be increased based on the following formula:

where,

CR0=the Conversion Rate in effect immediately prior to the close of business on the 10th Trading Day
immediately following, and including, the Trading Day next succeeding the date such tender or exchange offer expires;

CR'=the Conversion Rate in effect immediately after the close of business on the 10th Trading Day immediately following, and
including, the Trading Day next succeeding the date such tender or exchange offer expires;

                                              65

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

OS0=the number of shares of Common Stock outstanding immediately prior to the date such tender or exchange
offer expires (prior to giving effect to the purchase of all shares of Common Stock accepted for purchase or exchange in such tender or
exchange offer);

OS'=the number of shares of Common Stock outstanding immediately after the date such tender or exchange offer expires
(after giving effect to the purchase of all shares of Common Stock accepted for purchase or exchange in such tender or exchange offer);
and

SP'=the average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period
commencing on, and including, the Trading Day next succeeding the date such tender or exchange offer expires.

The adjustment to the Conversion Rate under this Section 14.04(e) shall occur at
the close of business on the 10th Trading Day immediately following, and including, the Trading Day next succeeding the date such tender or
exchange offer expires; provided that in respect of any conversion of Notes within the 10 Trading Days immediately following, and
including, the Trading Day next succeeding the date such tender or exchange offer expires, references in this Section 14.04(e) with respect to
10 Trading Days shall be deemed replaced with such lesser number of Trading Days as have elapsed between the date that such tender or
exchange offer expires and the Conversion Date in determining the Conversion Rate. In addition, if the Trading Day next succeeding the date
such tender or exchange offer expires is after the 10th Trading Day immediately preceding, and including, the end of any Observation Period
in respect of a conversion of Notes, references in this Section 14.04(e) to 10 Trading
Days shall be deemed to be replaced, solely in respect of that conversion of Notes, with such lesser number of Trading Days as have
elapsed from, and including, the Trading Day next succeeding the date such tender or exchange offer expires to, and including, the last
Trading Day of such Observation Period.

	Notwithstanding this Section 14.04 or any other provision of this Indenture or the Notes, if a Conversion Rate adjustment becomes
effective on any Ex-Dividend Date, and a Holder that has converted its Notes on or after such Ex-Dividend Date and on or prior to the related
Record Date would be treated as the record holder of the shares of Common Stock as of the related Conversion Date as described under
Section 14.02(i) based on an adjusted Conversion Rate for such Ex-Dividend Date, then, notwithstanding the Conversion Rate adjustment
provisions in this Section 14.04, the Conversion Rate adjustment relating to such Ex-Dividend Date shall not be made for such converting
Holder. Instead, such Holder shall be treated as if such Holder were the record owner of the shares of Common Stock on an unadjusted basis
and participate in the related dividend, distribution or other event giving rise to such adjustment.

	Except as stated herein, the Company shall not adjust the Conversion Rate for the issuance of shares of the Common Stock or any
securities convertible into or exchangeable for shares of the Common Stock or the right to purchase shares of the Common Stock or such
convertible or exchangeable securities.

                                              66

	In addition to those adjustments required by clauses (a), (b), (c), (d) and (e) of this Section 14.04, and to the extent permitted by
applicable law and subject to the applicable rules of any exchange on which any of the Company's securities are then listed, the Company
from time to time may increase the Conversion Rate by any amount for a period of at least 20 Business Days if the Board of Directors
determines that such increase would be in the Company's best interest.  In addition, to the extent permitted by applicable law and subject to
the applicable rules of any exchange on which any of the Company's securities are then listed, the Company may (but is not required to)
increase the Conversion Rate to avoid or diminish any income tax to holders of Common Stock or rights to purchase Common Stock in
connection with a dividend or distribution of shares of Common Stock (or rights to acquire shares of Common Stock) or similar event.
Whenever the Conversion Rate is increased pursuant to either of the preceding two sentences, the Company shall mail to the Holder of each
Note at its last address appearing on the Note Register a notice of the increase at least 15 days prior to the date the increased Conversion
Rate takes effect, and such notice shall state the increased Conversion Rate and the period during which it will be in effect.

	Notwithstanding anything to the contrary in this Article 14, the Conversion Rate shall not be adjusted:

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

	upon the issuance of any shares of Common Stock or options or rights to purchase those shares pursuant
to any present or future employee, director or consultant benefit plan or program of or assumed by the Company or any of the Company's
Subsidiaries;

	upon the issuance of any shares of the Common Stock pursuant to any option, warrant, right or exercisable, exchangeable or convertible
security not described in clause (ii) of this subsection and outstanding as of the date the Notes were first issued

	upon the repurchase of shares of Common Stock pursuant to an open-market share repurchase program or other buy-back transaction
that is not a tender offer or exchange offer of the nature described in Section 14.04(e);

	solely for a change in the par value of the Common Stock; or

	for accrued and unpaid interest, if any.

	The Company shall not be required to make an adjustment pursuant to clauses (a), (b), (c), (d) or (e) of this Section 14.04 unless such
adjustment would result in a change of at least 1% of the then effective Conversion Rate. However, the Company shall carry forward any
adjustment that the Company would otherwise have to make and take that adjustment into

                                              67

account in any subsequent adjustment. Notwithstanding the foregoing, all such carried-forward adjustments shall be made with respect to the Notes (i) in connection with any
subsequent adjustment to the Conversion Rate of at least 1% of the Conversion Rate (when such carried-forward adjustments are taken into
account) and (ii) (x) on the Conversion Date for any Notes (in the case of Physical Settlement) and (y) on each Trading Day of any
Observation Period (in the case of Cash Settlement or Combination Settlement). All calculations and other determinations under this Article
14 shall be made by the Company and shall be made to the nearest one-ten thousandth (1/10,000) of a share.

	Whenever the Conversion Rate is adjusted as herein provided, the Company shall promptly file with the Trustee (and the Conversion
Agent if not the Trustee) an Officer's Certificate setting forth the Conversion Rate after such adjustment and setting forth a brief statement of
the facts requiring such adjustment.  Unless and until a Responsible Officer of the Trustee shall have received such Officer's Certificate, the
Trustee shall not be deemed to have knowledge of any adjustment of the Conversion Rate and may assume without inquiry that the last
Conversion Rate of which it has knowledge is still in effect.  Promptly after delivery of such certificate, the Company shall prepare a notice of
such adjustment of the Conversion Rate setting forth the adjusted Conversion Rate and the date on which each adjustment becomes
effective and shall mail such notice of such adjustment of the Conversion Rate to each Holder at its last address appearing on the Note
Register of this Indenture.  Failure to deliver such notice shall not affect the legality or validity of any such adjustment.

	For purposes of this Section 14.04, the number of shares of Common Stock at any time outstanding shall not include shares of Common
Stock held in the treasury of the Company so long as the Company does not pay any dividend or make any distribution on shares of Common
Stock held in the treasury of the Company, but shall include shares of Common Stock issuable in respect of scrip certificates issued in lieu of
fractions of shares of Common Stock.

Section 14.05.   . Adjustments of Prices.  Whenever any provision of this Indenture requires the Company to
calculate the Last Reported Sale Prices, the Daily VWAPs, the Daily Conversion Values or the Daily Settlement Amounts over a span of
multiple days (including an Observation Period and the period for determining the Stock Price for purposes of a Make-Whole Fundamental
Change), the Board of Directors shall make appropriate adjustments to each to account for any adjustment to the Conversion Rate that
becomes effective, or any event requiring an adjustment to the Conversion Rate where the Ex-Dividend Date of the event occurs, at any time
during the period when the Last Reported Sale Prices, the Daily VWAPs, the Daily Conversion Values or the Daily Settlement Amounts are to
be calculated.  

Section 14.06.      Shares to Be Fully Paid.  The Company shall provide, free from preemptive rights, out of its
authorized but unissued shares or shares held in treasury, sufficient shares of Common Stock to provide for conversion of the Notes from
time to time as such Notes are presented for conversion (assuming that at the time of computation of such number of shares, all such Notes
would be converted by a single Holder and that Physical Settlement is applicable).

Section 14.07.      Effect of Recapitalizations, Reclassifications and Changes of the Common Stock.  

                                              68

	In the case of:

	any recapitalization, reclassification or change of the Common Stock (other than changes resulting from a subdivision or combination),

	any consolidation, merger or combination involving the Company, 

	any sale, lease or other transfer to a third party of the consolidated assets of the Company and the Company's Subsidiaries substantially
as an entirety or 

	any statutory share exchange, 

in each case, as a result of which the Common Stock would be converted into, or exchanged for, stock, other securities, other property or
assets (including cash or any combination thereof) (any such event, a "Merger Event"), then, at and after the effective time of such Merger Event, the right to
convert each $1,000 principal amount of Notes shall be changed into a right to convert such principal amount of Notes into the kind and
amount of shares of stock, other securities or other property or assets (including cash or any combination thereof) that a holder of a number
of shares of Common Stock equal to the Conversion Rate immediately prior to such Merger Event would have owned or been entitled to
receive (the "Reference Property", with each "unit of Reference Property" meaning the kind and
amount of Reference Property that a holder of one share of Common Stock is entitled to receive) upon such Merger Event and, prior to
or at the effective time of such Merger Event, the Company or the successor or purchasing Person, as the case may be, shall execute with
the Trustee a supplemental indenture permitted under Section 10.01(f) providing for such change in the right to convert each $1,000 principal
amount of Notes; provided, however, that at and after the effective time of the Merger Event (A) the Company shall continue to
have the right to determine the form of consideration to be paid or delivered, as the case may be, upon conversion of Notes in accordance
with Section 14.02 and (B) (I) any amount payable in cash upon conversion of the Notes in accordance with Section 14.02 shall continue to
be payable in cash, (II) any shares of Common Stock that the Company would have been required to deliver upon conversion of the Notes in
accordance with Section 14.02 shall instead be deliverable in the amount and type of Reference Property that a holder of that number of
shares of Common Stock would have received in such Merger Event and (III) the Daily VWAP shall be calculated based on the value of a unit
of Reference Property.

If the Merger Event causes the Common Stock to be converted into, or exchanged for, the right to receive more than a single type of
consideration (determined based in part upon any form of stockholder election), then (i) the Reference Property into which the Notes will be
convertible shall be deemed to be (x) the weighted average of the types and amounts of consideration received by the holders of Common
Stock that affirmatively make such an election or (y) if no holders of Common Stock affirmatively make such an election, the types and
amounts of consideration actually received by the holders of Common Stock, and (ii) the unit of Reference Property for purposes of the
immediately preceding paragraph shall refer to the consideration referred to in clause (i) attributable to one share of Common Stock.  If the
holders receive only cash in such Merger Event, then for all conversions that occur after the effective date of such Merger Event (A) the
consideration due upon conversion of each $1,000 principal amount of Notes shall be solely cash in an amount equal to the Conversion Rate
in effect on the Conversion

                                              69

Date (as may be increased by any Additional Shares pursuant to Section 14.03), multiplied by the price
paid per share of Common Stock in such Merger Event and (B) the Company shall satisfy the Conversion Obligation by paying cash to
converting Holders on the third Business Day immediately following the relevant Conversion Date. The Company shall notify Holders, the
Trustee and the Conversion Agent (if other than the Trustee) in writing of such weighted average as soon as practicable after such
determination is made.

Such supplemental indenture described in the second immediately preceding paragraph shall provide for anti-dilution and other
adjustments that shall be as nearly equivalent as is possible to the adjustments provided for in this Article 14.  If, in the case of any Merger
Event, the Reference Property includes shares of stock, securities or other property or assets (including cash or any combination thereof) of a
Person other than the successor or purchasing corporation, as the case may be, in such Merger Event, then such supplemental indenture
shall also be executed by such other Person and shall contain such additional provisions to protect the interests of the Holders of the Notes
as the Board of Directors shall reasonably consider necessary by reason of the foregoing, including the provisions providing for the purchase
rights set forth in Article 15.

	When the Company executes a supplemental indenture pursuant to subsection (a) of this Section 14.07, the Company shall promptly file
with the Trustee, in addition to the requirements of Section 10.05 hereunder, an Officer's Certificate briefly stating the reasons therefor, the
kind or amount of cash, securities or property or asset that will comprise a unit of Reference Property after any such Merger Event, any
adjustment to be made with respect thereto and that all conditions precedent have been complied with, and shall promptly mail notice thereof
to all Holders.  The Company shall cause notice of the execution of such supplemental indenture to be mailed to each Holder, at its address
appearing on the Note Register provided for in this Indenture, within 20 days after execution thereof.  Failure to deliver such notice shall not
affect the legality or validity of such supplemental indenture.

	The Company shall not become a party to any Merger Event unless its terms are consistent with this
Section 14.07.  None of the foregoing provisions shall affect the right of a holder of Notes to convert its Notes into cash, shares of Common
Stock or a combination of cash and shares of Common Stock, as applicable, as set forth in Section 14.01 and Section 14.02 prior to the
effective date of such Merger Event.

	The above provisions of this Section shall similarly apply to successive Merger Events. Upon the consummation of any Merger Event,
references to "Common Stock" shall be deemed to refer to any Reference Property that constitutes capital stock after giving effect
to such Merger Event.

Section 14.08.      Certain Covenants.

	The Company covenants that all shares of Common Stock issued upon
conversion of Notes will be fully paid and non-assessable by the Company and free from all taxes, liens and charges with respect to the issue
thereof.

	The Company covenants that, if any shares of Common Stock to be provided for the purpose of conversion of Notes hereunder require
registration with or approval of any governmental authority under any federal or state law before such shares of Common Stock may

                                              70

be validly issued upon conversion, the Company will, to the extent then permitted by the rules and interpretations of the Commission, secure
such registration or approval, as the case may be.

	The Company further covenants that if at any time the Common Stock shall be listed on any national securities exchange or automated
quotation system the Company will list and keep listed, so long as the Common Stock shall be so listed on such exchange or automated
quotation system, any Common Stock issuable upon conversion of the Notes.

Section 14.09.      Responsibility of Trustee.  The Trustee and any other Conversion Agent shall not at any time be
under any duty or responsibility to any Holder to determine the Conversion Rate (or any adjustment thereto) or whether any facts exist that
may require any adjustment (including any increase) of the Conversion Rate, or with respect to the nature or extent or calculation of any such
adjustment when made, or with respect to the method employed, or herein or in any supplemental indenture provided to be employed, in
making the same.  The Trustee and any other Conversion Agent shall not be accountable with respect to the validity or value (or the kind or
amount) of any shares of Common Stock, or of any securities, property or cash that may at any time be issued or delivered upon the
conversion of any Note; and the Trustee and any other Conversion Agent make no representations with respect thereto.  Neither the Trustee
nor any Conversion Agent shall be responsible for any failure of the Company to issue, transfer or deliver any shares of Common Stock or
stock certificates or other securities or property or cash upon the surrender of any Note for the purpose of conversion or to comply with any of
the duties, responsibilities or covenants of the Company contained in this Article.  Without limiting the generality of the foregoing, neither the
Trustee nor any Conversion Agent shall be under any responsibility to determine the correctness of any provisions contained in any
supplemental indenture entered into pursuant to Section 14.07 relating either to the kind or amount of shares of stock or securities or property
(including cash) receivable by Holders upon the conversion of their Notes after any event referred to in such Section 14.07 or to any
adjustment to be made with respect thereto, but, subject to the provisions of Section 7.01, may accept (without any independent
investigation) as conclusive evidence of the correctness of any such provisions, and shall be protected in conclusively relying upon, the
Officer's Certificate (which the Company shall be obligated to file with the Trustee prior to the execution of any such supplemental indenture)
with respect thereto.  Neither the Trustee nor the Conversion Agent shall be responsible for determining whether any event contemplated by
Section 14.01(b) has occurred that makes the Notes eligible for conversion or no longer eligible therefor until the Company has delivered to
the Trustee and the Conversion Agent the notices referred to in Section 14.01(b) with respect to the commencement or termination of such
conversion rights, on which notices the Trustee and the Conversion Agent may conclusively rely, and the Company agrees to deliver such
notices to the Trustee and the Conversion Agent immediately after the occurrence of any such event or at such other times as shall be
provided for in Section 14.01(b).

Section 14.10.      Notice to Holders Prior to Certain Actions.  In case of any:  

	action by the Company or one of its Subsidiaries that would require an adjustment in the Conversion Rate pursuant to Section
14.04 or Section 14.11;

	Merger Event; or

                                              71

	voluntary or involuntary dissolution, liquidation or winding-up of the Company or any of its Subsidiaries;

then, in each case (unless notice of such event is otherwise required pursuant to another provision of this Indenture), the Company shall
cause to be filed with the Trustee and the Conversion Agent (if other than the Trustee) and to be mailed to each Holder at its address
appearing on the Note Register, as promptly as possible but in any event at least 20 days prior to the applicable date hereinafter specified, a
notice stating (i) the date on which a record is to be taken for the purpose of such action by the Company or one of its Subsidiaries or, if a
record is not to be taken, the date as of which the holders of Common Stock of record are to be determined for the purposes of such action
by the Company or one of its Subsidiaries, or (ii) the date on which such Merger Event, dissolution, liquidation or winding-up is expected to
become effective or occur, and the date as of which it is expected that holders of Common Stock of record shall be entitled to exchange their
Common Stock for securities or other property deliverable upon such Merger Event, dissolution, liquidation or winding-up.  Failure to give
such notice, or any defect therein, shall not affect the legality or validity of such action by the Company or one of its Subsidiaries, Merger
Event, dissolution, liquidation or winding-up.

Section 14.11.      Stockholder Rights Plans.  If the Company has a stockholder rights
plan in effect upon conversion of the Notes, each share of Common Stock, if any, issued upon such conversion shall be entitled to receive the
appropriate number of rights, if any, and the certificates representing the Common Stock issued upon such conversion shall bear such
legends, if any, in each case as may be provided by the terms of any such stockholder rights plan, as the same may be amended from time
to time. However, if, prior to any conversion of Notes, the rights have separated from the shares of Common Stock in accordance with
the provisions of the applicable stockholder rights plan so that the Holders would not be entitled to receive any rights in respect of Common
Stock, if any, issuable upon conversion of the Notes, the Conversion Rate shall be adjusted at the time of separation as if the Company
distributed to all or substantially all holders of the Common Stock Distributed Property as provided in Section 14.04(c), subject to
readjustment in the event of the expiration, termination or redemption of such rights.

Section 14.12.      Limit on Issuance of Shares of Common Stock Upon Conversion.
Notwithstanding anything to the contrary in this Indenture, if an event occurs that would result in an increase in the Conversion Rate by an
amount in excess of limitations imposed by any shareholder approval rules or listing standards of any national or regional securities exchange
that are applicable to the Company, the Company will, at its option, either obtain stockholder approval of any issuance of Common Stock
upon conversion of the Notes in excess of such limitations or pay cash in lieu of delivering any shares of Common Stock otherwise
deliverable upon conversions in excess of such limitations based on the Daily VWAP on each Trading Day of the relevant Observation Period
in respect of which, in lieu of delivering shares of Common Stock, the Company pays cash pursuant to this Section
14.12.

ARTICLE 15

Repurchase of Notes at Option of Holders

Section 15.01.      Intentionally Omitted.  

                                              72

Section 15.02.      Repurchase at Option of Holders Upon a
Fundamental Change.  

	If a Fundamental Change occurs at any time, each Holder shall have the
right, at such Holder's option, to require the Company to repurchase for cash all of such Holder's Notes, or any portion thereof that is equal to
$1,000 or a multiple of $1,000, on the date (the "Fundamental Change Repurchase Date") specified by the Company that
is not less than 20 calendar days or more than 35 calendar days following the date of the Fundamental Change Company Notice at a
repurchase price equal to 100% of the principal amount thereof, plus accrued and unpaid interest thereon to, but excluding, the
Fundamental Change Repurchase Date (the "Fundamental Change Repurchase Price"), unless the Fundamental
Change Repurchase Date falls after a Regular Record Date but on or prior to the Interest Payment Date to which such Regular Record Date
relates, in which case the Company shall instead pay the full amount of accrued and unpaid interest to Holders of record as of such Regular
Record Date, and the Fundamental Change Repurchase Price shall be equal to 100% of the principal amount of Notes to be repurchased
pursuant to this Article 15.  

	Repurchases of Notes under this Section 15.02 shall be made, at the option of the Holder thereof, upon:

	delivery to the Paying Agent by a Holder of a duly completed notice (the "Fundamental Change
Repurchase Notice") in the form set forth in Attachment 2 to the Form of Note attached hereto as Exhibit A, if the Notes are
Physical Notes, or in compliance with the Depositary's procedures for surrendering interests in Global Notes, if the Notes are Global Notes, in
each case on or before the close of business on the Business Day immediately preceding the Fundamental Change Repurchase Date;
and

	delivery of the Notes, if the Notes are Physical Notes, to the Paying Agent at any time after delivery of the Fundamental Change
Repurchase Notice (together with all necessary endorsements for transfer) at the Corporate Trust Office of the Paying Agent, or book-entry
transfer of the Notes, if the Notes are Global Notes, in compliance with the procedures of the Depositary, in each case such delivery being a
condition to receipt by the Holder of the Fundamental Change Repurchase Price therefor.

The Fundamental Change Repurchase Notice in respect of any Notes to be repurchased shall state:

	in the case of Physical Notes, the certificate numbers of the Notes to be delivered for repurchase;

	the portion of the principal amount of Notes to be repurchased, which must be $1,000 or a multiple thereof; and

	that the Notes are to be repurchased by the Company pursuant to the applicable provisions of the Notes and this Indenture;

provided, however, that if the Notes are Global Notes, the Fundamental Change Repurchase Notice must comply with
appropriate Depositary procedures.

                                              73

Notwithstanding anything herein to the contrary, any Holder delivering to the Paying Agent the Fundamental Change Repurchase Notice
contemplated by this Section 15.02 shall have the right to withdraw, in whole or in part, such Fundamental Change Repurchase Notice at any
time prior to the close of business on the Business Day immediately preceding the Fundamental Change Repurchase Date by delivery of a
written notice of withdrawal to the Paying Agent in accordance with Section 15.03.

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

	On or before the 20th calendar day after the occurrence of a Fundamental Change, the Company shall
provide to all Holders of Notes and the Trustee and the Paying Agent (in the case of a Paying Agent other than the Trustee) a notice (the
"Fundamental Change Company Notice") of the occurrence of the Fundamental Change and of the repurchase right at
the option of the Holders arising as a result thereof.  In the case of Physical Notes, such notice shall be by first class mail or, in the case of
Global Notes, such notice shall be delivered in accordance with the applicable procedures of the Depositary.  Each Fundamental Change
Company Notice shall specify:

	the events causing the Fundamental Change;

	the date of the Fundamental Change;

	the last date on which a Holder may exercise the repurchase right pursuant to this Article 15;

	the Fundamental Change Repurchase Price;

	the Fundamental Change Repurchase Date;

	the name and address of the Paying Agent and the Conversion Agent, if applicable;

	if applicable, the Conversion Rate and any adjustments to the Conversion Rate;

	that the Notes with respect to which a Fundamental Change Repurchase Notice has been delivered by a Holder may be converted only if
the Holder withdraws the Fundamental Change Repurchase Notice in accordance with the terms of this Indenture;

	the procedures that Holders must follow to require the Company to repurchase their Notes.

No failure of the Company to give the foregoing notices and no defect therein shall limit the Holders' repurchase rights or affect the
validity of the proceedings for the repurchase of the Notes pursuant to this Section 15.02. 

                                              74

At the Company's written request, the Trustee shall give such notice in the Company's name and at the Company's expense;
provided, however, that, in all cases, the text of such Fundamental Change Company Notice shall be prepared by the
Company.

	Notwithstanding the foregoing, no Notes may be repurchased by the Company on any date at the option of the Holders upon a
Fundamental Change if the principal amount of the Notes has been accelerated, and such acceleration has not been rescinded, on or prior to
such date (except in the case of an acceleration resulting from a Default by the Company in the payment of the Fundamental Change
Repurchase Price with respect to such Notes). The Paying Agent will promptly return to the respective Holders thereof any Physical Notes
held by it during the acceleration of the Notes (except in the case of an acceleration resulting from a Default by the Company in the payment
of the Fundamental Change Repurchase Price with respect to such Notes), or any instructions for book-entry transfer of the Notes in
compliance with the procedures of the Depositary shall be deemed to have been cancelled, and, upon such return or cancellation, as the
case may be, the Fundamental Change Repurchase Notice with respect thereto shall be deemed to have been withdrawn.

Section 15.03.   
Withdrawal of Fundamental Change Repurchase Notice.

	
A Fundamental Change Repurchase Notice may be withdrawn (in whole or in
part) by means of a written notice of withdrawal delivered to the Paying Agent in accordance with this Section 15.03 at any time prior to the
close of business on the Business Day immediately preceding the Fundamental Change Repurchase Date,
specifying:

	the principal amount of the Notes with respect to which such notice of withdrawal is being submitted,

	if Physical Notes have been issued, the certificate number of the Note in respect of which such notice of withdrawal is being submitted,
and

	the principal amount, if any, of such Note that remains subject to the original Fundamental Change Repurchase Notice, which portion
must be in principal amounts of $1,000 or a multiple of $1,000;

provided, however, that if the Notes are Global Notes, the notice must comply with appropriate procedures of the
Depositary.

Section 15.04.      Deposit of Fundamental Change
Repurchase Price.

	
  The Company will deposit with the Trustee (or other Paying Agent appointed by
the Company, or if the Company is acting as its own Paying Agent, set aside, segregate and hold in trust as provided in Section 4.04) on or
prior to 11:00 a.m., New York City time, on the Fundamental Change Repurchase Date an amount of money sufficient to repurchase all of the
Notes to be repurchased at the appropriate Fundamental Change Repurchase Price.  Subject to receipt of funds and/or Notes by the Trustee
(or other Paying Agent appointed by the Company), payment for Notes surrendered for repurchase (and not withdrawn prior to the close of
business on the Business Day immediately preceding the Fundamental Change Repurchase Date) will be made on the later of (i) the
Fundamental Change Repurchase Date (provided the Holder has satisfied the conditions in Section 15.02) and (ii) the time of book-entry
transfer or the delivery of such Note to the Trustee

                                              75

(or other Paying Agent appointed by the Company) by the Holder thereof in the
manner required by Section 15.02 by mailing checks for the amount payable to the
Holders of such Notes entitled thereto as they shall appear in the Note Register; provided, however, that payments to the
Depositary shall be made by wire transfer of immediately available funds to the account of the Depositary or its nominee.  The Trustee shall,
promptly after such payment and upon written demand by the Company, return to the Company any funds in excess of the Fundamental
Change Repurchase Price.

	If by 11:00 a.m. New York City time, on the Fundamental Change Repurchase Date, the Trustee (or other Paying Agent appointed by the
Company) holds money sufficient to make payment on all the Notes or portions thereof that are to be repurchased on such  Fundamental
Change Repurchase Date, then, with respect to the Notes that have been properly surrendered for repurchase and have not been validly
withdrawn in accordance with the provisions of this Indenture,  such Notes will cease to be outstanding,  interest will cease to accrue on such
Notes (whether or not book-entry transfer of the Notes has been made or the Notes have been delivered to the Trustee or Paying Agent) and
all other rights of the Holders of such Notes will terminate (other than the right to receive the Fundamental Change Repurchase Price).

	Upon surrender of a Note that is to be repurchased in part pursuant to Section 15.02, the Company shall execute and the Trustee shall
authenticate and deliver to the Holder a new Note in an authorized denomination equal in principal amount to the unrepurchased portion of
the Note surrendered.

Section 15.05.     Covenant to Comply with Applicable Laws Upon Repurchase of Notes.  In connection with any
repurchase offer, the Company will, if required:

	comply with the tender offer rules under the Exchange Act;

	file a Schedule TO or any other required schedule under the Exchange Act; and

	otherwise comply with all federal and state securities laws in connection with any offer by the Company to repurchase the
Notes;

in each case, so as to permit the rights and obligations under this Article 15 to be exercised in the time and in the manner specified in this
Article 15.

ARTICLE 16

No Optional Redemption

Section 16.01.     No Optional Redemption.  The Notes shall not be redeemable by
the Company prior to the Maturity Date, and no sinking fund is provided for the Notes.

                                              76

ARTICLE 17

Miscellaneous Provisions

Section 17.01.      Provisions Binding on Company's Successors.  All the covenants, stipulations, promises and
agreements of the Company contained in this Indenture shall bind its successors and assigns whether so expressed or not.

Section 17.02.      Official Acts by Successor Corporation.  Any act or proceeding by any provision of this Indenture
authorized or required to be done or performed by any board, committee or Officer of the Company shall and may be done and performed
with like force and effect by the like board, committee or officer of any corporation or other entity that shall at the time be the lawful sole
successor of the Company.

Section 17.03.      Addresses for Notices, Etc.  Any notice or demand that by any
provision of this Indenture is required or permitted to be given or served by the Trustee or by the Holders on the Company shall be deemed to
have been sufficiently given or made, for all purposes if given or served by being deposited postage prepaid by registered or certified mail in
a post office letter box addressed (until another address is filed by the Company with the Trustee) to ServiceSource International, Inc., 634
Second Street, San Francisco, California 94107, Attention: General Counsel.  Any notice, direction, request or demand hereunder to or upon
the Trustee shall be deemed to have been sufficiently given or made, for all purposes, if given or served by being deposited postage prepaid
by registered or certified mail in a post office letter box addressed to the Corporate Trust Office or sent electronically in PDF
format.

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

Any notice or communication mailed to a Holder shall be mailed to it by first class mail, postage prepaid, at its address as it appears on
the Note Register and shall be sufficiently given to it if so mailed within the time prescribed; provided that notices given to Holders of
Global Notes may be given through the facilities of the Depositary.

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

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

Section 17.04.      Governing Law; Jurisdiction.  THIS INDENTURE AND EACH NOTE, AND ANY CLAIM,
CONTROVERSY OR DISPUTE ARISING UNDER OR RELATED TO THIS INDENTURE AND EACH NOTE, SHALL BE GOVERNED BY,
AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK (WITHOUT REGARD TO THE CONFLICTS OF
LAWS PROVISIONS THEREOF).

                                              77

The Company irrevocably consents and agrees, for the benefit of the Holders from time to time of the Notes and the Trustee, that any
legal action, suit or proceeding against it with respect to obligations, liabilities or any other matter arising out of or in connection with this
Indenture or the Notes may be brought in the courts of the State of New York or the courts of the United States located in the Borough of
Manhattan, New York City, New York and, until amounts due and to become due in respect of the Notes have been paid, hereby irrevocably
consents and submits to the non-exclusive jurisdiction of each such court in personam, generally and unconditionally with respect to
any action, suit or proceeding for itself in respect of its properties, assets and revenues.  

The Company irrevocably and unconditionally waives, to the fullest extent permitted by law, any objection which it may now or hereafter
have to the laying of venue of any of the aforesaid actions, suits or proceedings arising out of or in connection with this Indenture brought in
the courts of the State of New York or the courts of the United States located in the Borough of Manhattan, New York City, New York and
hereby further irrevocably and unconditionally waives and agrees not to plead or claim in any such court that any such action, suit or
proceeding brought in any such court has been brought in an inconvenient forum.

Section 17.05.      Evidence of Compliance with Conditions Precedent; Certificates and Opinions
of Counsel to Trustee.  Upon any application or demand by the Company to the Trustee to take any action under any of the provisions of
this Indenture, the Company shall, if requested by the Trustee, furnish to the Trustee an Officer's Certificate and an Opinion of Counsel
stating that such action is permitted by the terms of this Indenture; provided, no such Opinion of Counsel shall be required in connection with
the initial issuance of the Notes or execution of the Indenture.

Each Officer's Certificate or Opinion of Counsel provided for, by or on behalf of the Company in this Indenture and delivered to the
Trustee with respect to compliance with this Indenture (other than the Officer's Certificates provided for in Section 4.08) shall include  a
statement that the person signing such certificate is familiar with the requested action and this Indenture;  a brief statement as to the nature
and scope of the examination or investigation upon which the statement contained in such certificate is based;  a statement that, in the
judgment of such person, he or she has made such examination or investigation as is necessary to enable him or her to express an informed
judgment as to whether or not such action is permitted by this Indenture; and  a statement as to whether or not, in the judgment of such
person, such action is permitted by this Indenture and that all conditions precedent thereto have been complied with.

Section 17.06.      Legal Holidays.  In any case where any Interest Payment Date, Fundamental Change
Repurchase Date or Maturity Date is not a Business Day, then any action to be taken on such date need not be taken on such date, but may
be taken on the next succeeding Business Day with the same force and effect as if taken on such date, and no interest shall accrue in
respect of the delay.

Section 17.07.      No Security Interest Created.  Nothing in this Indenture or in the Notes, expressed or implied,
shall be construed to constitute a security interest under the Uniform Commercial Code or similar legislation, as now or hereafter enacted and
in effect, in any jurisdiction.

                                              78

Section 17.08.      Benefits of Indenture.  Nothing in this Indenture or in the Notes, expressed or implied, shall give
to any Person, other than the Holders, the parties hereto, any Paying Agent, any Conversion Agent, any authenticating agent, any Note
Registrar and their successors hereunder, any benefit or any legal or equitable right, remedy or claim under this Indenture.

Section 17.09.      Table of Contents, Headings, Etc.  The table of contents and the titles and headings of the
articles and sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part hereof, and shall
in no way modify or restrict any of the terms or provisions hereof.

Section 17.10.   
Authenticating Agent.  The Trustee may appoint an authenticating agent that shall be authorized to act on its behalf and subject to its
direction in the authentication and delivery of Notes in connection with the original issuance thereof and transfers and exchanges of Notes
hereunder, including under Section 2.04, Section 2.05, Section 2.06, Section 2.07, Section 10.04 and Section 15.04 as fully to all intents and
purposes as though the authenticating agent had been expressly authorized by this Indenture and those Sections to authenticate and deliver
Notes.  For all purposes of this Indenture, the authentication and delivery of Notes by the authenticating agent shall be deemed to be
authentication and delivery of such Notes "by the Trustee" and a certificate of authentication executed on behalf of the Trustee by
an authenticating agent shall be deemed to satisfy any requirement hereunder or in the Notes for the Trustee's certificate of authentication.
Such authenticating agent shall at all times be a Person eligible to serve as trustee hereunder pursuant to Section
7.08.

Any corporation or other entity into which any authenticating agent may be merged or converted or with which it may be consolidated, or
any corporation or other entity resulting from any merger, consolidation or conversion to which any authenticating agent shall be a party, or
any corporation or other entity succeeding to the corporate trust business of any authenticating agent, shall be the successor of the
authenticating agent hereunder, if such successor corporation or other entity is otherwise eligible under this Section 17.10, without the
execution or filing of any paper or any further act on the part of the parties hereto or the authenticating agent or such successor corporation or
other entity.

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

                                              79

The Company agrees to pay to the authenticating agent from time to time reasonable compensation for its services although the
Company may terminate the authenticating agent, if it determines such agent's fees to be unreasonable.

The provisions of Section 7.02, Section 7.03, Section 7.04, Section 8.03 and this Section 17.10 shall be applicable to any authenticating
agent.

If an authenticating agent is appointed pursuant to this Section 17.10, the Notes may have endorsed thereon, in addition to the Trustee's
certificate of authentication, an alternative certificate of authentication in the following form:

__________________________,

as Authenticating Agent, certifies that this is one of the Notes described

in the within-named Indenture.

By: ____________________

Authorized Signatory

Section 17.11.      Execution in Counterparts.  This Indenture may be executed in any number of counterparts, each
of which shall be an original, but such counterparts shall together constitute but one and the same instrument. The exchange of copies of this
Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this Indenture as to the
parties hereto and may be used in lieu of the original Indenture for all purposes.  Signatures of the parties hereto transmitted by facsimile or
PDF shall be deemed to be their original signatures for all purposes.

Section 17.12.      Severability.  In the event any provision of this Indenture or in the Notes shall be invalid, illegal or
unenforceable, then (to the extent permitted by law) the validity, legality or enforceability of the remaining provisions shall not in any way be
affected or impaired.

Section 17.13.      Waiver of Jury Trial.  EACH OF THE COMPANY AND THE TRUSTEE HEREBY IRREVOCABLY
WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL
PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE, THE NOTES OR THE TRANSACTIONS CONTEMPLATED
HEREBY.

Section 17.14.      Force Majeure.  In no event shall the Trustee be responsible or liable for any failure or delay in
the performance of its obligations hereunder arising out of or caused by, directly or indirectly, forces beyond its control, including, without
limitation, strikes, work stoppages, accidents, acts of war or terrorism, civil or military disturbances, nuclear or natural catastrophes or acts of
God, and interruptions, loss or malfunctions of utilities, communications or computer (software and hardware) services; it being understood
that the Trustee shall use reasonable efforts that are consistent with accepted practices in the banking industry to resume performance as
soon as practicable under the circumstances.

                                              80

Section 17.15.      Calculations.  Except as otherwise provided herein, the Company shall be responsible for making
all calculations called for under the Notes or this Indenture.  These calculations include, but are not limited to, determinations of the Last
Reported Sale Prices of the Common Stock, the Daily VWAPs, the Daily Conversion Values, the Daily Settlement Amounts, accrued interest
payable on the Notes and the Conversion Rate of the Notes.  The Company shall make all these calculations in good faith and, absent
manifest error, the Company's calculations shall be final and binding on Holders of Notes.  The Company shall provide a schedule of its
calculations to each of the Trustee and the Conversion Agent, and each of the Trustee and Conversion Agent is entitled to rely conclusively
upon the accuracy of the Company's calculations without independent verification.  The Trustee will forward the Company's calculations to
any Holder of Notes upon the request of that Holder at the sole cost and expense of the Company.

Section 17.16.      USA Patriot Act.  The parties hereto acknowledge that in accordance with Section 326 of the
USA PATRIOT Act, the Trustee, like all financial institutions and in order to help fight the funding of terrorism and money laundering, is
required to obtain, verify and record information that identifies each person or legal entity that establishes a relationship or opens an account
with the Trustee. The parties to this Indenture agree that they will provide the Trustee with such information as it may request in order for the
Trustee to satisfy the requirements of the USA PATRIOT Act.

[Remainder of page intentionally left blank]

   

   

   

                                              81

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

	

SERVICESOURCE INTERNATIONAL, INC.

	
By: 
	/s/ Ashley F. Johnson 

	

Name: Ashley F. Johnson

	

Title: Chief Financial Officer

   

	

WELLS FARGO BANK, NATIONAL ASSOCIATION, as Trustee

	
By: 
	/s/ Maddy Hall 

	

Name: Maddy Hall

	

Title: Vice President

   

   

   

EXHIBIT A

[FORM OF FACE OF NOTE]

[INCLUDE FOLLOWING LEGEND IF A GLOBAL NOTE]

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

[INCLUDE FOLLOWING LEGEND IF A RESTRICTED SECURITY]

[THIS SECURITY AND THE COMMON STOCK, IF ANY, ISSUABLE UPON CONVERSION OF THIS SECURITY
HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND
MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH THE FOLLOWING
SENTENCE. BY ITS ACQUISITION HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE ACQUIRER:

(1) REPRESENTS THAT IT AND ANY ACCOUNT FOR WHICH IT IS ACTING IS A "QUALIFIED
INSTITUTIONAL BUYER" (WITHIN THE MEANING OF RULE 144A UNDER THE SECURITIES ACT) AND THAT IT EXERCISES
SOLE INVESTMENT DISCRETION WITH RESPECT TO EACH SUCH ACCOUNT, AND

(2) AGREES FOR THE BENEFIT OF SERVICESOURCE INTERNATIONAL, INC. (THE "COMPANY")
THAT IT WILL NOT OFFER, SELL, PLEDGE OR OTHERWISE TRANSFER THIS SECURITY OR ANY BENEFICIAL INTEREST HEREIN
PRIOR TO THE DATE THAT IS THE LATER OF (X) ONE YEAR AFTER THE LAST ORIGINAL ISSUE DATE HEREOF OR SUCH
SHORTER PERIOD OF TIME AS PERMITTED BY RULE 144 UNDER THE SECURITIES ACT OR ANY SUCCESSOR PROVISION
THERETO AND (Y) SUCH LATER DATE, IF ANY, AS MAY BE REQUIRED BY APPLICABLE LAW, EXCEPT:

(A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, OR

(B) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BECOME EFFECTIVE UNDER THE SECURITIES ACT, OR

                                              A-1

(C) TO A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT, OR 

(D) PURSUANT TO AN EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES
ACT OR ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 

PRIOR TO THE REGISTRATION OF ANY TRANSFER IN ACCORDANCE WITH CLAUSE (2)(D) ABOVE, THE
COMPANY AND THE TRUSTEE RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH LEGAL OPINIONS, CERTIFICATIONS
OR OTHER EVIDENCE AS MAY REASONABLY BE REQUIRED IN ORDER TO DETERMINE THAT THE PROPOSED TRANSFER IS
BEING MADE IN COMPLIANCE WITH THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS. NO REPRESENTATION IS
MADE AS TO THE AVAILABILITY OF ANY EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.]

   

   

   

   

                                              A-2

ServiceSource International, Inc.

1.50% Convertible Senior Note due 2018

	

No. RA-1

	

Initially $150,000,000

CUSIP No. 81763U AA81

ServiceSource International, Inc., a corporation duly organized and validly existing under the laws of the State of Delaware (the
"Company," which term includes any successor corporation or other entity under the Indenture referred to on the reverse
hereof), for value received hereby promises to pay to CEDE & CO., or registered assigns, the principal sum [as set forth in the
"Schedule of Exchanges of Notes" attached hereto]2[of $_______ (  DOLLARS)]3, which amount, taken together with the principal
amounts of all other outstanding Notes, shall not, unless permitted by the Indenture, exceed $150,000,000 in aggregate at any time, in
accordance with the rules and procedures of the Depositary, on August 1, 2018, and interest thereon as set forth below.

This Note shall bear interest at the rate of 1.50% per year from August 13, 2013, or from the most recent date to which interest has been
paid or provided for to, but excluding, the next scheduled Interest Payment Date until August 1, 2018.  Accrued interest on this Note shall be
computed on the basis of a 360-day year composed of twelve 30-day months and, for partial months, on the basis of actual days elapsed
over a 30-day month.  Interest is payable semi-annually in arrears on each August 1 and February 1, commencing on
February 1, 2014, to Holders of record at the close of business on the preceding July 15 and January 15 (whether or not
such day is a Business Day), respectively.  Additional Interest will be payable as set forth in Section 4.06(d), Section 4.06(e) and Section 6.03
of the within-mentioned Indenture, and any reference to interest on, or in respect of, any Note therein shall be deemed to include Additional
Interest if, in such context, Additional Interest is, was or would be payable pursuant to any of such Section 4.06(d), Section 4.06(e) or Section
6.03, and any express mention of the payment of Additional Interest in any provision therein shall not be construed as excluding Additional
Interest in those provisions thereof where such express mention is not made.

Any Defaulted Amounts shall accrue interest per annum at the rate borne by the Notes, from, and including, the relevant payment date to,
but excluding, the date on which such Defaulted Amounts shall have been paid by the Company, at its election, in accordance with Section
2.03(c) of the Indenture.  

___________________________ 

1 At such time as the Company notifies the Trustee
to remove the Restricted Security legend pursuant to Section 2.05(c) of the
Indenture, the CUSIP number for this Security shall be deemed to be CUSIP No.
81763U AB6.

2 Include for a Global Note.

3 Include for a Physical Note.

                                              A-3

The Company shall pay the principal of and interest on this Note, if and so long as such Note is a Global Note, in immediately available
funds in lawful money of the United States at the time to the Depositary or its nominee, as the case may be, as the registered Holder of such
Note.  As provided in and subject to the provisions of the Indenture, the Company shall pay the principal of any Notes (other than Notes that
are Global Notes) at the office or agency designated by the Company for that purpose.  The Company has initially designated the Trustee as
its Paying Agent and Note Registrar in respect of the Notes and its agency in Minneapolis, Minnesota, as a place where Notes may be
presented for payment or for registration of transfer and exchange.  

Reference is made to the further provisions of this Note set forth on the reverse hereof, including, without limitation, provisions giving the
Holder of this Note the right to convert this Note into cash, shares of Common Stock or a combination of cash and shares of Common Stock,
as applicable, on the terms and subject to the limitations set forth in the Indenture.  Such further provisions shall for all purposes have the
same effect as though fully set forth at this place.

This Note, and any claim, controversy or dispute arising under or related to this Note, shall be construed in accordance with and
governed by the laws of the State of New York (without regard to the conflicts of laws provisions thereof).

In the case of any conflict between this Note and the Indenture, the provisions of the Indenture shall control and govern.

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

[Remainder of page intentionally left blank]

   

   

   

   

                                              A-4

IN WITNESS WHEREOF, the Company has caused this Note to be duly executed.

	SERVICESOURCE INTERNATIONAL, INC.

	
By: __________________________
	

	Name:

	Title:

Dated: 

TRUSTEE'S CERTIFICATE OF AUTHENTICATION

WELLS FARGO BANK, NATIONAL ASSOCIATION

as Trustee, certifies that this is one of the Notes described

in the within-named Indenture.

By:_______________________________

     Authorized Signatory

   

   

   

[FORM OF REVERSE OF NOTE]

ServiceSource International, Inc.

1.50% Convertible Senior Note due 2018

This Note is one of a duly authorized issue of Notes of the Company, designated as its 1.50% Convertible Senior Notes due 2018 (the
"Notes"), initially limited to the aggregate principal amount of $150,000,000 all issued or to be issued under and pursuant
to an Indenture dated as of August 13, 2013 (the "Indenture"), between the Company and Wells Fargo Bank,
National Association (the "Trustee"), to which Indenture and all indentures supplemental thereto reference is hereby
made for a description of the rights, limitations of rights, obligations, duties and immunities thereunder of the Trustee, the Company and the
Holders of the Notes.  Additional Notes may be issued in an unlimited aggregate principal amount, subject to certain conditions specified in
the Indenture.  Capitalized terms used in this Note and not defined in this Note shall have the respective meanings set forth in the
Indenture.

In case certain Events of Default, as defined in the Indenture, shall have occurred and be continuing, the principal of, and interest on, all
Notes may be declared, by either the Trustee or Holders of at least 25% in aggregate principal amount of Notes then outstanding, and upon
said declaration shall become, due and payable, in the manner, with the effect and subject to the conditions and certain exceptions set forth
in the Indenture.

Subject to the terms and conditions of the Indenture, the Company will make all payments and deliveries in respect of the Fundamental
Change Repurchase Price on the Fundamental Change Repurchase Date and the principal amount on the Maturity Date, as the case may
be, to the Holder who surrenders a Note to a Paying Agent to collect such payments in respect of the Note.  The Company will pay cash
amounts in money of the United States that at the time of payment is legal tender for payment of public and private debts.  

The Indenture contains provisions permitting the Company and the Trustee in certain circumstances, without the consent of the Holders
of the Notes, and in certain other circumstances, with the consent of the Holders of not less than a majority in aggregate principal amount of
the Notes at the time outstanding, evidenced as in the Indenture provided, to execute supplemental indentures modifying the terms of the
Indenture and the Notes as described therein.  It is also provided in the Indenture that, subject to certain exceptions, the Holders of a majority
in aggregate principal amount of the Notes at the time outstanding may on behalf of the Holders of all of the Notes waive any past Default or
Event of Default under the Indenture and its consequences.

No reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair the obligation of the Company,
which is absolute and unconditional, to pay or deliver, as the case may be, the principal (including the Fundamental Change Repurchase
Price, if applicable) of, accrued and unpaid interest on, and the consideration due upon conversion of, this Note at the place, at the respective
times, at the rate and in the lawful money herein prescribed.

                                              R-1

The Notes are issuable in registered form without coupons in denominations of $1,000 principal amount and multiples thereof.  At the
office or agency of the Company referred to on the face hereof, and in the manner and subject to the limitations provided in the Indenture,
Notes may be exchanged for a like aggregate principal amount of Notes of other authorized denominations, without payment of any service
charge but, if required by the Company or Trustee, with payment of a sum sufficient to cover any transfer or similar tax that may be imposed
in connection therewith as a result of the name of the Holder of the new Notes issued upon such exchange of Notes being different from the
name of the Holder of the old Notes surrendered for such exchange.

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

Upon the occurrence of a Fundamental Change, the Holder has the right, at such Holder's option, to require the Company to repurchase
for cash all of such Holder's Notes or any portion thereof (in principal amounts of $1,000 or multiples thereof) on the Fundamental Change
Repurchase Date at a price equal to the Fundamental Change Repurchase Price.

Subject to the provisions of the Indenture, the Holder hereof has the right, at its option, during certain periods and upon the occurrence of
certain conditions specified in the Indenture, prior to the close of business on the second Scheduled Trading Day immediately preceding the
Maturity Date, to convert any Notes or portion thereof that is $1,000 or a multiple thereof, into cash, shares of Common Stock or a
combination of cash and shares of Common Stock, as applicable, at the Conversion Rate specified in the Indenture, as adjusted from time to
time as provided in the Indenture.

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

   

   

   

                                              R-2

ABBREVIATIONS

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

TEN COM = as tenants in common

UNIF GIFT MIN ACT = Uniform Gifts to Minors Act

CUST = Custodian

TEN ENT = as tenants by the entireties

JT TEN  = joint tenants with right of survivorship and not as tenants in common 

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

   

   

   

                                              R-3

SCHEDULE A

SCHEDULE OF EXCHANGES OF NOTES

ServiceSource International, Inc.

1.50% Convertible Senior Notes due 2018

The initial principal amount of this Global Note is [_______] DOLLARS ($[_________]).  The following increases or decreases in this
Global Note have been made:

	
Date of exchange
	
Amount of
decrease in
principal amount
of this Global Note
	
Amount of
increase in
principal amount
of this Global Note
	
Principal amount
of this Global Note
following such
decrease or
increase
	
Signature of
authorized
signatory of
Trustee or
Custodian

	__________________
	__________________
	__________________
	__________________
	__________________

	__________________
	__________________
	__________________
	__________________
	__________________

	__________________
	__________________
	__________________
	__________________
	__________________

	__________________
	__________________
	__________________
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	__________________

	__________________
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	__________________
	__________________
	__________________

	__________________
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	__________________
	__________________
	__________________

	__________________
	__________________
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	__________________
	__________________

	__________________
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	__________________
	__________________
	__________________

	__________________
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	__________________

	__________________
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	__________________
	__________________
	__________________

	__________________
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	__________________

	__________________
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	__________________

	__________________
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	__________________

	__________________
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	__________________

	__________________
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	__________________
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	__________________
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	__________________
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	__________________
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	__________________

	__________________
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	__________________

	__________________
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	__________________
	__________________
	__________________

	__________________
	__________________
	__________________
	__________________
	__________________

                                              R-4

ATTACHMENT 1

[FORM OF NOTICE OF CONVERSION]

To:  ServiceSource International, Inc.

To: Wells Fargo Bank, National Association,

   as Trustee and Registrar - DAPS Reorg

   MAC N9303-121

   608 2nd Avenue South

   Minneapolis, MN  55479

   Telephone No.:  (877) 872-4605

   Fax No.:  (866) 969-1290

   Email:  DAPSReorg@wellsfargo.com

The undersigned registered owner of this Note hereby exercises the option to convert this Note, or the portion hereof (that is $1,000
principal amount or a multiple thereof) below designated, into cash, shares of Common Stock or a combination of cash and shares of
Common Stock, as applicable, in accordance with the terms of the Indenture referred to in this Note, and directs that any cash payable and
any shares of Common Stock issuable and deliverable upon such conversion, together with any cash for any fractional share, and any Notes
representing any unconverted principal amount hereof, be issued and delivered to the registered Holder hereof unless a different name has
been indicated below.  If any shares of Common Stock or any portion of this Note not converted are to be issued in the name of a Person
other than the undersigned, the undersigned will pay all documentary, stamp or similar issue or transfer taxes, if any in accordance with
Section 14.02(d) and Section 14.02(d) of the Indenture.  Any amount required to be paid to the undersigned on account of interest
accompanies this Note.

Dated:_____________________           ________________________________

_______________________________

   Signature(s)

___________________________

   Signature Guarantee

Signature(s) must be guaranteed

by an eligible Guarantor Institution

(banks, stock brokers, savings and

loan associations and credit unions)

with membership in an approved

signature guarantee medallion program

                                              1

ATTACHMENT 2

[FORM OF FUNDAMENTAL CHANGE REPURCHASE NOTICE]

To:  ServiceSource International, Inc.

To: Wells Fargo Bank, National Association,

   as Trustee and Registrar - DAPS Reorg

   MAC N9303-121

   608 2nd Avenue South

   Minneapolis, MN  55479

   Telephone No.:  (877) 872-4605

   Fax No.:  (866) 969-1290

   Email:  DAPSReorg@wellsfargo.com

The undersigned registered owner of this Note hereby acknowledges receipt of a notice from ServiceSource International, Inc. (the
"Company") as to the occurrence of a Fundamental Change with respect to the Company and specifying the
Fundamental Change Repurchase Date and requests and instructs the Company to pay to the registered holder hereof in accordance with
Section 15.02 of the Indenture referred to in this Note (1) the entire principal amount of this Note, or the portion thereof (that is $1,000
principal amount or a multiple thereof) below designated, and (2) if such Fundamental Change Repurchase Date does not fall during the
period after a Regular Record Date and on or prior to the Scheduled Trading Day immediately succeeding the corresponding Interest
Payment Date, accrued and unpaid interest, if any, thereon to, but excluding, such Fundamental Change Repurchase Date.

In the case of Physical Notes, the certificate numbers of the Notes to be repurchased are as set forth below:

Dated:_____________________

________________________________

       Signature(s)

_________________________

   Social Security or Other Taxpayer

Identification Number

Principal amount to be repurchased (if less than all):  $______,000

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

                                              1

pursuant to Securities and Exchange

Commission Rule 17Ad-15 if shares

of Common Stock are to be issued, or

Notes are to be delivered, other than

to and in the name of the registered holder.

Fill in for registration of shares if

to be issued, and Notes if to

be delivered, other than to and in the

name of the registered holder:

_________________________

   (Name)

_________________________

   (Street Address)

_________________________

   (City, State and Zip Code)

   Please print name and address
Principal amount to be converted (if less than all):  $______,000

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

_________________________

Social Security or Other Taxpayer

Identification Number

                                              2

ATTACHMENT 3

[FORM OF ASSIGNMENT AND TRANSFER]

Wells Fargo Bank, National Association,

   as Trustee and Registrar - DAPS Reorg

   MAC N9303-121

   608 2nd Avenue South

   Minneapolis, MN  55479

   Telephone No.:  (877) 872-4605

   Fax No.:  (866) 969-1290

   Email:  DAPSReorg@wellsfargo.com

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

In connection with any transfer of the within Note occurring prior to the Resale Restriction Termination Date, as defined in the Indenture
governing such Note, the undersigned confirms that such Note is being transferred:

□To ServiceSource International, Inc. or a subsidiary thereof; or

□Pursuant to a registration statement that has become or been declared
effective under the Securities Act of 1933, as amended; or

□Pursuant to and in compliance with Rule 144A under the Securities Act
of 1933, as amended; or

□Pursuant to and in compliance with Rule 144 under the Securities Act of
1933, as amended, or any other available exemption from the registration requirements of the Securities Act of 1933, as amended.

                                              1

Dated: ________________________

_____________________________________

_____________________________________

   Signature(s)

_____________________________________

   Signature Guarantee

Signature(s) must be guaranteed by an

eligible Guarantor Institution (banks, stock

brokers, savings and loan associations and

credit unions) with membership in an approved

signature guarantee medallion program pursuant

to Securities and Exchange Commission

Rule 17Ad-15 if Notes are to be delivered, other

than to and in the name of the registered holder.

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

                                              2CA Filed by Filing Services Canada Inc. 403-717-3898

 

 

CERTIFICATIONS

 

I, Paul E. Heney certify that:

 

		1)	I have reviewed this Annual Report on Form
20-F for Rainchief Energy Inc;

 

		2)	Based on my knowledge, this report does not
contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light
of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

 

		3)	Based on my knowledge, the financial statements,
and other financial information included in this report, fairly present in all material respects the financial condition, results
of operations and cash flows of the Company as of, and for, the periods presented in this report;

 

		4)	The Company's other certifying officer and
I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e)
and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the
Company and have:

 

		a)	designed such disclosure controls and procedures,
or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating
to the Company, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during
the period in which this report is being prepared;

 

		b)	designed such internal control over financial
reporting, or caused such internal control over financial reporting to be designed under ur supervision, to provide reasonable
assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in
accordance with generally accepted accounting principles; 

 

		c)	evaluated the effectiveness of the Company's
disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls
and procedures, as of the end of the period covered by this report based on such evaluation; and 

 

		d)	disclosed in this report any change in the
Company's internal control over financial reporting that occurred during the period covered by the annual report that has materially
affected, or is reasonably likely to materially affect, the Company's internal controls over financial reporting; and

 

		5)	The Company's other certifying officer and
I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Company's auditors and
the audit committee of Company's board of directors (or persons performing the equivalent function):

 

		a)	all significant deficiencies and material
weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect
the Company's ability to record, process, summarize and report financial information; and

 

		b)	any fraud, whether or not material, that
involves management or other employees who have a significant role in the Company's internal control over financial reporting.

 

 

 

Date: August 13, 2013

/s/ Paul E. Heney

Paul E. Heney

Chief Executive Officer

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