Document:

Private Placement Agreement, dated August 19, 2004

 Exhibit 4.22 
  
 Private Placement Agreement 
 5% Senior Convertible Notes Due 2009 
  
 THIS PRIVATE PLACEMENT AGREEMENT (the “Agreement”) is by and between Harken Energy Corporation, a Delaware corporation, with headquarters located at 180 State Street, Suite 200, Southlake, Texas 76092
(the “Company”), and the Buyer described in the subscription agreement (the “Subscription Agreement”), to which this Agreement is attached and incorporated by reference therein. The date of this Agreement is the date of the
Subscription Agreement. 
  
 W I T N E S S E T H: 

 
 WHEREAS, the Company and the Buyer are executing and delivering
this Agreement in reliance upon the exemption from securities registration afforded by Rule 506 under Regulation D (“Regulation D”) as promulgated by the United States Securities and Exchange Commission (the “SEC”) under the
United States Securities Act of 1933, as amended (the “Securities Act”); and 
  
 WHEREAS, the Buyer wishes to subscribe for and purchase the Company’s 5% Senior Convertible Notes due 2009 (the “Notes”) in the aggregate principal amount set forth in the Subscription Agreement
upon the terms and subject to the conditions of this Agreement and the Subscription Agreement. 
  
 NOW THEREFORE, in consideration of the premises and the mutual covenants contained herein and other good and valuable considerations, the receipt and sufficiency of which are hereby acknowledged, the parties
agree as follows: 
  
 1. AGREEMENT TO SUBSCRIBE;
PURCHASE PRICE. 
  
 a. Subscription.
Buyer hereby subscribes for and agrees to purchase the aggregate principal amount of the Notes set forth in the Subscription Agreement for a total consideration value (“Consideration Value”) set forth in the Subscription Agreement, to be
paid and delivered to the Common Depository on behalf of the Company as set forth in the Subscription Agreement. 
  
 b. Payment of Consideration Value. The Buyer shall credit the Consideration Value to the account of the Common Depository set out
in the Subscription Agreement on the basis referred to in the Subscription Agreement. 
  
 c. Terms and Conditions of the Notes. The terms and conditions and other matters relating to the Notes are contained in the global
note certificate (“Global Note Certificate”), with the Terms and Conditions of the Notes attached thereto. A form of the Global Note Certificate is attached as Appendix A to the Private Offering Memorandum and is incorporated therein by
reference. 
  
 References herein to “Conversion Shares”
shall include any shares issued by the Company on redemption of the Notes. 
  
 2. BUYER REPRESENTATIONS, WARRANTIES, ETC.; ACCESS TO INFORMATION; INDEPENDENT INVESTIGATION. 

 The Buyer represents, warrants, covenants and agrees with the Company as follows: 
  
 a. The Buyer is purchasing the Notes, and will be acquiring
the Company’s common stock, par value $0.01 per share (“Common Stock”), into which the Notes may be converted (“Conversion Shares”), for its own account and not with a view towards the public sale or distribution thereof in
violation of the Securities Act; 
  
 b. The Buyer
is an “Accredited Investor” as that term is defined in Rule 501 of the General Rules and Regulations under the Securities Act; 
  
 c. The Buyer has experience in investments of this nature or has engaged its own advisors for advice and counsel concerning the
Buyer’s purchase of the Notes and a potential investment in the Conversion Shares; 
  
 d. All subsequent offers and sales of the Notes and/or the Conversion Shares by the Buyer shall be made pursuant to registration of the
Notes and/or the Conversion Shares under the Securities Act or pursuant to a valid exemption from registration, and the Buyer agrees that the Company may impose appropriate legends upon certificates representing the Notes and the Conversion Shares
and stop orders on its transfer books to protect and enforce the exemption from registration; 
  
 e. The Buyer understands that the Notes are being offered and sold to it in reliance on specific exemptions from the registration
requirements of United States federal and state securities laws and that the Company is relying upon the truth and accuracy of, and the Buyer’s compliance with, the representation, warranties, agreements, acknowledgments and understandings of
the Buyer set forth herein in order to determine the availability of such exemptions and the eligibility of the Buyer to acquire the Notes; 
  
 f. The Buyer and/or its advisors have been furnished with all materials relating to the business, finances and operations of the Company
and materials relating to the offer and sale of the Notes and potential investment in the Conversion Shares which have been requested by the Buyer. The Buyer and its advisors have been afforded the opportunity to ask questions of the Company and
have received complete and satisfactory answers to any such inquiries. Without limiting the generality of the foregoing, the Buyer has had the opportunity to obtain and to review the Global Note Certificate and the documents attached to the
Subscription Agreement and all other filings included in the SEC Documents defined in Section 3(b) below. The Buyer understands that its investment in the Notes and Conversion Shares involves a high degree of risk, and the Buyer is relying upon its
own knowledge and experience in making its decision to purchase the Notes and potential investment in the Conversion Shares as well as the Company’s representations and warranties contained herein. Further, the Buyer and/or its advisors have
read and discussed with the Company the terms, conditions, and other matters pertaining to the Notes and the Conversion Shares contained in the Global Note Certificate. The Buyer and its advisors, including its legal advisors, have been afforded the
opportunity to ask questions of the Company regarding the matters contained in the Global Note Certificate and Terms and Conditions thereof and have received complete and satisfactory answers to any such inquires; 
  
 g. The Buyer understands that no United States federal or
state agency or any other government or governmental agency has passed on or made any recommendation or endorsement of the Notes; 
  
 h. This Agreement has been duly and validly authorized, executed and delivered on behalf of the Buyer and is a valid and binding agreement
of the Buyer enforceable in accordance with its terms, subject as to enforceability to general principles of equity and to bankruptcy or other laws affecting the enforcement of creditors’ rights generally; 
  

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 i. Neither the Buyer nor its affiliates are owners, beneficially or otherwise, of any
Common Stock or other equity securities of the Company, or rights to acquire Common Stock or other equity securities of the Company other than as set forth in the Subscription Agreement. 
  
 j. Buyer agrees that, subject only to the conditions, qualifications and exceptions (if any) specifically
set forth in this Agreement, its obligations under this Agreement are unconditional and absolute. Except to the extent (if any) specifically set forth in this Agreement, Buyer’s obligations thereunder are not subject to any right of set off,
counterclaim, delay or reduction. 
  
 k. The
Buyer understands that the Company has not undertaken to advise it in respect to any U.S. federal income tax consequences of the ownership and disposition of the Notes and the Common Stock receivable upon conversion or redemption for Conversion
Shares of the Notes and that the Buyer should consult its own advisers in regard to such matters. 
  
 3. COMPANY REPRESENTATIONS, ETC. 
  
 The Company represents and warrants to the Buyer that: 
  
 a. Organization and Good Standing. The Company is a corporation duly organized, validly existing and in good standing under the
laws of the State of Delaware and is qualified to do business in the State of Texas and has the requisite corporate power to own property and to carry out its business as now conducted. The Company has the requisite power and authority to enter into
this Agreement and consummate the transactions contemplated by this Agreement. The execution and delivery of this Agreement by the Company and the consummation of the transactions contemplated hereby have been duly authorized by all necessary
corporate action on the part of the Company. No further consent of the Company, its Board of Directors or stockholders is required in connection herewith, and assuming this Agreement is the valid and binding agreement of the Buyer, this Agreement is
a valid and binding obligation of the Company enforceable in accordance with its terms, except as enforceability may be limited by bankruptcy, insolvency, reorganization, moratorium and other laws affecting creditors’ rights generally and by
general principles of equity. 
  
 The Company
does not have any subsidiaries other than the subsidiaries listed in the SEC Documents (defined below) or on the schedules attached thereto (“Subsidiaries”). Except where specifically indicated to the contrary, all references in this
Agreement to Subsidiaries shall be deemed to refer to all direct and indirect Subsidiaries of the Company. The Company is duly qualified as a foreign corporation to do business and is in good standing in every jurisdiction in which the nature of the
business conducted or property owned by it makes such qualification necessary other than those in which the failure so to qualify would not have a Material Adverse Effect. For purpose of this Agreement, “Material Adverse Effect” means any
adverse effect on the business, operations, properties, prospects, or financial condition of the Company and its subsidiaries, if any, which is (either alone or together with all other adverse effects) material to the Company and its subsidiaries,
if any, taken as a whole, and any material adverse effect on the transactions contemplated under this Agreement. 
  
 b. Financial Condition. Since three fiscal years prior to the date of the Subscription Agreement and with the exception of the
Company’s Form 10-KA for the year ended December 31, 2002 which was filed late, the Company has filed all reports, schedules, forms, statements and other documents required to be filed by it with the SEC pursuant to the reporting requirements
of the Securities and Exchange Act of 1934, as amended (the “Exchange Act”) (all of the foregoing filed prior to the date hereof and all exhibits included therein and financial statements and schedules thereto and documents incorporated by

  

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 reference therein being hereinafter referred to as the “SEC Documents”). The Company has
delivered or otherwise made available to the Buyer or its representatives true and complete copies of any SEC Documents that were not filed electronically via EDGAR. As of their respective dates, the SEC Documents complied in all material respects
with the requirements of the Exchange Act and the rules and regulations of the SEC promulgated thereunder applicable to the SEC Documents, and none of the SEC Documents, at the time they were filed with the SEC, contained any untrue statement of a
material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading except to the extent such matters if any
existed, may have been amended, modified or updated in a subsequent filing included in the SEC Documents. As of their respective dates, the financial statements of the Company included in the SEC Documents complied as to form in all material
respects with generally accepted accounting principles and the published rules and regulations of the SEC with respect thereto except to the extent such matters if any existed, may have been amended, modified or updated in a subsequent filing
included in the SEC Documents. Such financial statements have been prepared in accordance with generally accepted accounting principles, consistently applied, during the periods involved (except (i) as may be otherwise indicated in such financial
statements or the notes thereto, or (ii) in the case of unaudited interim statements, to the extent they may exclude footnotes or may be condensed or summary statements) and fairly present in all material respects the financial position of the
Company as of the dates thereof and the results of its operations and cash flows for the periods then ended (subject, in the case of unaudited statements, to normal year-end audit adjustments) except to the extent such matters if any existed, may
have been amended, modified or updated in a subsequent filing included in the SEC Documents. No other written information provided by or on behalf of the Company to the Buyer which is not included in the SEC Documents contains any untrue statement
of a material fact or omits to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they are or were made, not misleading. Since the most recent Form 10-K referred to in Exhibit
B to the Subscription Agreement, there has been no material change in the financial condition of the Company and its Subsidiaries, or of its business, properties, assets and operations except as may have been otherwise publicly disclosed by the
Company. To the Company’s knowledge, no event, liability, development or circumstance has occurred or exists with respect to the Company or its Subsidiaries or their respective business, properties, prospects, operations or financial condition,
that would be required to be disclosed by the Company under applicable securities laws on a registration statement filed with the SEC relating to an issuance and sale by the Company of its Common Stock and which has not been publicly disclosed. The
Buyer is advised to review the information available at the Company’s website, www.harkenenergy.com, in connection with its review and analysis of the Company. 
  
 The Company has not taken any steps, and does not currently expect to take any steps, to seek protection
pursuant to any bankruptcy law nor does the Company or its Subsidiaries have any knowledge or reason to believe that its creditors intend to initiate involuntary bankruptcy proceedings. 
  
 c. Concerning the Notes and Conversion Shares. The Conversion Shares, when issued, delivered and paid
for in accordance with this Agreement and the Global Note Certificate and Terms and Conditions thereof, will be duly and validly authorized and issued, fully paid and non-assessable and will not subject the holder thereof to personal liability by
reason of being such holder. The Notes, upon issuance, shall be free and clear of any and all liens, claims and encumbrances. Subject to condition 6(G) and the availing of authorized shares of Common Stock, the Conversion Shares are duly authorized
and reserved for issuance in compliance with the Global Note Certificate and Terms and Conditions thereof, and when issued in compliance with the terms and conditions of the Global Note Certificate and Terms and Conditions thereof will be validly
issued, fully paid and non-assessable, free and clear of any and all liens, claims and encumbrances. When the Conversion Shares have been issued as aforesaid, the holders of the Conversion Shares shall be entitled to all rights and preferences
accorded to a holder of Common Stock. As of the date of this Agreement, the Common Stock is currently listed on the Principal Market (as defined below). There are no preemptive 
  

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 rights of any stockholder of the Company, as such, to acquire the Conversion Shares. 
  
 d. Agreement. This Agreement, when signed and
delivered between Buyer and Company, shall have been duly and validly authorized, executed and delivered on behalf of the Company and shall be a valid and binding agreement of the Company enforceable in accordance with its terms, except as
enforceability may be limited by bankruptcy, insolvency, reorganization, moratorium and other laws affecting creditors’ rights generally and by general principles of equity. 
  
 e. Non-contravention. The execution and delivery of this Agreement by the Company and the
consummation by the Company of the sale of the Notes and the issuance of the Conversion Shares and the other transactions contemplated by this Agreement do not and will not conflict with or result in a breach by the Company of any of the terms or
provisions of, or constitute a default (or an event which with notice or lapse of time or both would become a default) or give to others any rights of termination, amendment, acceleration or cancellation of, the Certificate of Incorporation or
By-laws of the Company or any certificate of designation of any outstanding preferred stock of the Company, or, to the knowledge of the Company, any indenture, mortgage, deed of trust or other material agreement or instrument to which the Company
and/or its Subsidiaries is/are a party or by which it or any of its properties or assets are bound, or, to the knowledge of the Company, any existing applicable law, rule or regulation or any applicable decree, judgment or order of any court, United
States federal or state regulatory body, administrative agency or other governmental body having jurisdiction over the Company or any of its properties or assets or any regulations and the rules and regulations of the American Stock Exchange, Inc.
(“Principal Market”). 
  
 Except as
disclosed in the Private Offering Memorandum, neither the Company nor its Subsidiaries is in violation of any term of, or in default under, (x) its Certificate of Incorporation, any Certificate of Designations, Preferences and Rights of any
outstanding series of preferred stock or By-laws or their organizational charter or by-laws, respectively, (y) to the knowledge of the Company, any material contract, agreement, mortgage, indebtedness, indenture, instrument, or (z) to the knowledge
of the Company, any judgment, decree or order or any statute, rule or regulation applicable to the Company or its Subsidiaries, the non-compliance with which would be material to the Company and its subsidiaries when taken as a whole or interfere
with the performance of its obligations under this Agreement. 
  
 f. Approvals. Except as referred to herein or in the Terms and Conditions, to the knowledge of the Company, no authorization, approval, consent of or filing with any governmental body, court, regulatory or
self-regulating agency is required to be obtained by the Company for the sale of the Notes or delivery of the Conversion Shares to the Buyer as contemplated by this Agreement in order for it to execute, deliver or perform any of its obligations
under, or contemplated by, this Agreement in accordance with the terms hereof. The Company complies with and is not in violation of any material listing requirement of the Principal Market as in effect on the date hereof and is not aware of any
facts currently in existence affecting the Company which would reasonably lead to delisting or suspension of the Common Stock by the Principal Market in the foreseeable future. 
  
 g. Capitalization. As of June 7, 2004, the authorized capital stock of the Company consisted of (i)
275,000,000 shares of Common Stock, and the number of shares issued outstanding as of the that date, together with the number of shares issuable and reserved for issuance pursuant to the Company’s stock options and pursuant to securities
exercisable or exchangeable for, or convertible into, shares of Common Stock, is set forth in the Subscription Agreement, and (ii) 10,000,000 shares of preferred stock, and the number of shares issued outstanding as of that date is set forth in the
Subscription Agreement. All of such outstanding shares have been, or upon issuance will be, validly issued, fully paid and nonassessable. As of the date of the Private Offering Memorandum, except as disclosed in the Schedules and the SEC Documents,
(i) no shares of the Company’s capital stock are subject to preemptive rights or any other similar rights or any liens or 
  

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 encumbrances suffered or permitted by the Company, (ii) there are no outstanding debt securities, (iii)
there are no outstanding options, warrants, scrip, rights to subscribe to, calls, or commitments of any character whatsoever relating to, or securities or rights convertible into, any shares of capital stock of the Company or any of its
Subsidiaries, or contracts, commitments, understandings or arrangements by which the Company or any of its Subsidiaries is or may become bound to issue additional shares of capital stock of the Company or any of its Subsidiaries or options,
warrants, scrip, rights to subscribe to, calls or commitments of any character whatsoever relating to, or securities or rights convertible into, any shares of capital stock of the Company or any of its Subsidiaries, (iv) there are no outstanding
securities of the Company or any of its Subsidiaries which contain any redemption or similar provisions and there are no contracts, commitments, understandings or arrangements by which the Company or any of its Subsidiaries is or may become bound to
redeem a security of the Company or any of its Subsidiaries, (v) there are no securities or instruments containing anti-dilution or similar provisions that will be triggered by the sale of the Notes as described in this Agreement and (vi) the
Company does not have any stock appreciation rights or “phantom stock” plans or agreements or any similar plan or agreement. The Company has furnished or made available to the Buyer true and correct copies of the Company’s Certificate
of Incorporation, as amended and as in effect on the date hereof (the “Certificate of Incorporation”), and the Company’s By-laws, as in effect on the date hereof (the “By-laws”), and descriptions of the terms of all
securities convertible into or exercisable for Common Stock and the material rights of the holders thereof in respect thereto. 
  
 h. Absence of Litigation. Except as disclosed in the Private Offering Memorandum or as set forth in the SEC Documents, there is no
material action, suit, proceeding, inquiry or investigation before or by any court, public board, government agency, self-regulatory organization or body pending or, to the knowledge of the Company or any of its Subsidiaries, threatened against or
affecting the Company, the Common Stock or any of the Company’s officers or directors in their capacities as such, except as set forth in the Schedules and the SEC Documents and as disclosed to the Buyer, and which would have a material adverse
effect on the Company’s business and operations on a consolidated basis. 
  
 i. Acknowledgment Regarding Buyer’s Purchase of the Notes. The Company acknowledges and agrees that the Buyer is acting solely in the capacity of arm’s length purchaser with respect to this Agreement
and the transactions contemplated hereby. The Company further acknowledges that the Buyer is not acting as a financial advisor or fiduciary of the Company (or in any similar capacity) with respect to this Agreement and the transactions contemplated
hereby, and any advice given by the Buyer or any of its representatives or agents in connection with this Agreement and the transactions contemplated hereby is merely incidental to the Buyer’s purchases of the Notes or investment in the
Conversion Shares. The Company further represents to the Buyer that the Company’s decision to enter into this Agreement has been based solely on the independent evaluation by the Company and its representatives. 
  
 j. No Integrated Offering. To the knowledge of the
Company, neither the Company, nor any of its affiliates, nor any person acting on its or their behalf has, directly or indirectly, made any offers or sales of any security or solicited any offers to buy any security, under circumstances that would
cause this offering of Notes to the Buyer to be integrated with prior offerings by the Company for purposes of the Securities Act or any applicable shareholder approval provisions, including, without limitation, under the rules and regulations of
the Principal Market, nor will the Company or any of its Subsidiaries take any action or steps that would cause the offering of the Notes to be integrated with other offerings. 
  
 k. Obligations Absolute. The Company agrees that, subject only to the conditions, qualifications and
exceptions (if any) specifically set forth in this Agreement, its obligations under this Agreement are unconditional and absolute. Except to the extent (if any) specifically set forth in this Agreement, the Company’s obligations thereunder are
not subject to any right of set off, counterclaim, delay or reduction. 
  

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 l. Form S-3. As of the date hereof, the Company is eligible to file the
Registration Statement for secondary offerings on Form S-3 (as in effect on the date of the Subscription Agreement) under the Securities Act and rules promulgated thereunder, and Form S-3 (as in effect on the date of this Agreement) to the
Company’s knowledge is permitted to be used for the transactions contemplated hereby under the Securities Act and rules promulgated thereunder. 
  
 m. Materiality of this Agreement. This Agreement and the transactions contemplated hereby do not constitute a transaction which is
material to the Company such that it would require disclosure in a press release or in a document to be filed by the Company with the SEC, except that this Agreement and the transactions contemplated hereby shall be disclosed in the Registration
Statement filed pursuant to the Terms and Conditions with respect to the Notes. The Company reserves the right at its sole discretion to issue a press release or other public disclosure relating to this transaction. 
  
 4. CERTAIN COVENANTS AND ACKNOWLEDGEMENTS. 
  
 a. Transfer Restrictions. The Buyer acknowledges that
(1) the Notes to be sold to it and the Conversion Shares to be issued to it hereunder have not been and are not being registered under the provisions of the Securities Act (except as provided in the Terms and Conditions with respect to the Notes),
and may not be transferred unless (A) the Notes and/or Conversion Shares are subsequently registered under the Securities Act or (B) the Buyer shall have delivered to the Company an opinion of counsel, reasonably satisfactory in form, scope and
substance to the Company, to the effect that the Notes and/or Conversion Shares may be sold or transferred pursuant to a valid exemption from such registration; (2) any sale of the Notes and/or Conversion Shares made in reliance on Rule 144
promulgated under the Securities Act may be made only in accordance with the terms of said Rule and further, if said Rule is not applicable, any resale of such Notes under circumstances in which the seller, or the person through whom the sale is
made, may be deemed to be an underwriter, as that term is used in the Securities Act, may require compliance with some other exemption under the Securities Act or the rules and regulations of the SEC thereunder; and (3) neither the Company or any
other person is under any obligation to register the Notes or the Conversion Shares (other than, in respect of the Conversion Shares or shares issuable on redemption of the Notes, pursuant to the Registration Procedures set forth in the Terms and
Conditions with respect to the Notes) under the Securities Act or any state securities regulations or to comply with the terms and conditions of any exemption thereunder. 
  
 b. Restrictive Legend. The Buyer acknowledges and agrees that the Notes and, prior to the Conversion
Shares being registered under the Securities Act for resale or the Notes or Conversion Shares being available for resale under Rule 144(k) under the Securities Act, the certificate for the Notes and Conversion Shares may bear a restrictive legend in
substantially the following form (and a stop-transfer order may be placed against transfer of the certificates for the Notes), which may be modified as the Company deems necessary to comply with the Securities Act: 
  
 “NEITHER THIS NOTE NOR THE SHARES OF COMMON STOCK
ISSUABLE ON CONVERSION OR REDEMPTION OF THIS NOTE (THE “SHARES”) HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR THE SECURITIES LAWS OF ANY STATE. THE HOLDER HEREOF, BY PURCHASING THIS
NOTE, AGREES FOR THE BENEFIT OF THE COMPANY THAT THIS NOTE AND THE SHARES MAY NOT BE RESOLD, PLEDGED OR OTHERWISE TRANSFERRED OR DISPOSED OF UNLESS THE NOTE OR THE SHARES AS THE CASE MAY BE, HAS BEEN REGISTERED UNDER THE SECURITIES ACT AND ANY
APPLICABLE STATE SECURITIES OR BLUE SKY LAWS OR EXEMPTIONS FROM THE REGISTRATION REQUIREMENTS OF SUCH 
  

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 LAWS ARE AVAILABLE. 
  
 IF THE HOLDER OF THIS NOTE WAS AN AFFILIATE OF THE COMPANY AT ANY TIME DURING THE THREE MONTHS PRECEDING THE
DATE OF ANY SUCH TRANSFER, THE FOREGOING CONDITIONS MUST BE COMPLIED WITH REGARDLESS OF WHEN SUCH TRANSFER IS MADE. 
  
 ANY UNITED STATES PERSON WHO HOLDS THIS OBLIGATION WILL BE SUBJECT TO LIMITATIONS UNDER THE U.S. INCOME TAX LAWS, INCLUDING THE
LIMITATIONS PROVIDED IN SECTIONS 165(j) AND 1287(a) OF THE UNITED STATES INTERNAL REVENUE CODE OF 1986, AS AMENDED. 
  
 THIS OBLIGATION IS NOT A DEPOSIT AND IS NOT INSURED BY ANY AGENCY OF THE UNITED STATES GOVERNMENT.” 
  
 Such legend shall be removed from the Notes and Conversion
Shares and the Company shall issue new certificates without such legend if (i) the holder thereof is permitted to dispose of such Notes pursuant to Rule 144 (k) under the Securities Act, (ii) such Conversion Shares are registered for resale under
the Securities Act, or (iii) such Notes or Conversion Shares are sold to a purchaser or purchasers who (in the opinion of counsel to the Buyer or such purchaser(s), in form and substance reasonably satisfactory to the Company and its counsel) are
able to dispose of such shares publicly without registration under the Securities Act. Upon such Registration Statement becoming effective with respect to the Conversion Shares, the Company agrees promptly to issue new replacement certificates
representing such Notes without such legend. Any Conversion Shares or shares issued on redemption of the Notes issued after the Registration Statement has become effective shall be free and clear of any legends, transfer restrictions and stop
orders. Notwithstanding the removal of such legend, the Buyer agrees to sell the Conversion Shares represented by the new certificates in accordance with the applicable prospectus delivery requirements (if copies of a current prospectus are provided
to the Buyer by the Company) or in accordance with an exemption from the registration requirements of the Securities Act. 
  
 Nothing herein shall limit the right of any holder to pledge these securities pursuant to a bona fide margin account or lending
arrangement entered into in compliance with law, including applicable securities laws. 
  
 Until the earlier of (a) the second anniversary of the date of this Agreement, and (b) the date on which all Shares (as defined in the
Terms and Conditions with respect to the Notes) have been sold pursuant to a registration statement as provided in the Terms and Conditions of the Notes, the Company will (i) cause the Common Stock to continue at all times to be registered under
Sections 12(b) or (g) of the Exchange Act will comply in all material respects with its reporting and filing obligations under the Exchange Act, and will not take any action or file any document (whether or not permitted by the Exchange Act or the
rules thereunder) to terminate or suspend such reporting and filing obligations and (ii) continue the listing or trading of the Common Stock on a Stock Exchange or one of the other approved markets as provided in the Terms and Conditions of the
Notes and comply in all material respects with the Company’s reporting, filing and other obligations under the by-laws or rules of the Principal Market on which the Common Stock is listed. 
  
 c. Form D. The Company agrees to file a Form D with
respect to the Notes as required under Regulation D and to provide a copy thereof to the Buyer promptly after such filing. The Company shall take such action as the Company shall have reasonably determined is necessary to qualify the Conversion
Shares for sale to the Buyer under applicable securities or “blue sky” laws of the states of the United States (or to obtain an exemption from such qualification), provided, however, that the Company shall not be required in 
  

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 connection therewith to register or qualify as a foreign corporation in any jurisdiction where it is not
now so qualified or to take any action that would subject it to service of process in suits or taxation, in each case, in any jurisdiction where it is not now so subject. 
  
 d. Replacement Certificates. The certificate(s) representing the Conversion Shares held by the Buyer
(or then holders) may be exchanged by the Buyer (or such holders) at any time and from time to time for certificates with different denominations representing an equal aggregate number of Conversion Shares, as requested by the Buyer (or such
holders) upon surrendering the same. 
  
 e.
Securities Compliance. The Company shall notify the SEC and the Stock Exchange in accordance with their respective requirements, of the transactions contemplated by this Agreement and shall take all other necessary action and proceedings as
may be required and permitted by applicable law, rule and regulation, for the legal and valid sale of the Notes and issuance of the Conversion Shares hereunder. 
  
 f. Use of Proceeds. The Company agrees that the net proceeds received by the Company from the sale of
the Notes hereunder shall be used for legally permitted corporate purposes. 
  
 5. ISSUANCE OF THE NOTES. 
  
 The Notes will be represented by beneficial interests in the Global Note, without interest coupons attached. The Global Note will be deposited with a common depository (the “Common Depository”) for Morgan
Guaranty Trust Company of New York, Brussels office, as operator of the Euroclear System (“Euroclear”) and Clearstream. Interests in the Global Note may be traded only to the Authorized Denomination thereof. Nothing in this Section shall
affect in any way the Buyer’s obligations and agreement to comply with all applicable securities laws upon resale of the Notes. 
  
 6. CLOSING. 
  
 The effective date and time of closing and the issuance and sale of the Notes (the “Closing Date”) shall be 10 am London time, on August 6,
2004, or such later date as shall be mutually agreed by the Company and Buyer and shall be held at the offices of RP&C International Limited in London, England. 
  
 7. CONDITIONS TO THE COMPANY’S OBLIGATION TO SELL. 
  
 The Buyer understands that the Company’s obligation to sell the Notes
to the Buyer pursuant to this Agreement is conditioned upon: 
  
 a. Timely delivery by the Buyer to the Common Depository on behalf of the Company of the Consideration Value in accordance with Section 1 hereof; 
  
 b. The Buyer shall have delivered to the Company a certificate in form and substance reasonably satisfactory
to the Company executed by an officer, partner or principal of the Buyer certifying as to satisfaction of closing conditions, incumbency of the Buyer’s executing representatives and the true, correct and completeness of the Buyer’s
representations and warranties set forth below; and 
  
 c. The accuracy on the Closing Date of the representations and warranties of the Buyer contained in this Agreement and the performance by the Buyer on or before the Closing Date of all covenants and agreements of the Buyer required to be
performed on or before such Closing Date. 
  
 8.
CONDITIONS TO THE BUYER’S OBLIGATION TO PURCHASE. 
  

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 The Company understands that the Buyer’s obligation to purchase the Notes is conditioned upon:

  
 a. Delivery as of the Closing Date by the
Company of the Subscription Agreement duly executed by the Company in acceptance thereof; 
  
 b. The truth, accuracy and correctness in all material regards on the Closing Date of the representations and warranties of the Company
contained in this Agreement and the performance by the Company on or before the Closing Date of all covenants and agreements of the Company required to be performed on or before such Closing Date; 
  
 c. The Company shall have performed all agreements and
satisfied all conditions required to be performed or satisfied by the Company at or prior to the Closing Date; 
  
 d. No statute, rule, regulation, executive order, decree, ruling or injunction shall have been enacted, entered, promulgated or endorsed
by any court or governmental authority of competent jurisdiction that prohibits the consummation of any of the transactions contemplated by this Agreement. The Principal Market shall not have objected or indicated that it may object to the
consummation of any of the transactions contemplated by this Agreement; 
  
 e. The Company shall have delivered to the Buyer such other documents relating to the transactions contemplated by this Agreement or the Buyer or its counsel may reasonably request; and 
  
 f. The Company shall be in compliance with all of its
obligations under this Agreement. 
  
 These conditions are for the
Buyer’s benefit and may be waived by the Buyer at any time in its sole discretion. 
  
 9. GOVERNING LAW; MISCELLANEOUS. THIS AGREEMENT SHALL BE GOVERNED BY AND INTERPRETED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO THE PRINCIPLES OF CONFLICT OF LAWS. EACH PARTY HEREBY
IRREVOCABLY SUBMITS TO THE EXCLUSIVE JURISDICTION OF THE STATE AND FEDERAL COURTS SITTING IN THE CITY OF NEW YORK, BOROUGH OF MANHATTAN, FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION HEREWITH OR WITH ANY TRANSACTION CONTEMPLATED
HEREBY OR DISCUSSED HEREIN, AND HEREBY IRREVOCABLY WAIVES, AND AGREES NOT TO ASSERT IN ANY SUIT, ACTION OR PROCEEDING, ANY CLAIM THAT IT IS NOT PERSONALLY SUBJECT TO THE JURISDICTION OF ANY SUCH COURT, THAT SUCH SUIT, ACTION OR PROCEEDING IS BROUGHT
IN AN INCONVENIENT FORUM OR THAT THE VENUE OF SUCH SUIT, ACTION OR PROCEEDING IS IMPROPER. EACH PARTY HEREBY IRREVOCABLY WAIVES PERSONAL SERVICE OF PROCESS AND CONSENTS TO PROCESS BEING SERVED IN ANY SUCH SUIT, ACTION OR PROCEEDING BY MAILING A COPY
THEREOF TO SUCH PARTY AT THE ADDRESS FOR SUCH NOTICES TO IT UNDER THIS AGREEMENT AND AGREES THAT SUCH SERVICE SHALL CONSTITUTE GOOD AND SUFFICIENT SERVICE OF PROCESS AND NOTICE THEREOF. NOTHING CONTAINED HEREIN SHALL BE DEEMED TO LIMIT IN ANY WAY
ANY RIGHT TO SERVE PROCESS IN ANY MANNER PERMITTED BY LAW. IF ANY PROVISION OF THIS AGREEMENT SHALL BE INVALID OR UNENFORCEABLE IN ANY JURISDICTION, SUCH INVALIDITY OR UNENFORCEABILITY SHALL NOT AFFECT THE VALIDITY OR ENFORCEABILITY OF THE REMAINDER
OF THIS AGREEMENT IN THAT JURISDICTION OR THE VALIDITY OR ENFORCEABILITY OF ANY PROVISION OF THIS AGREEMENT IN ANY OTHER JURISDICTION. EACH PARTY HERETO 
  

 10 

 IRREVOCABLY WAIVES ANY RIGHT TO TRIAL BY JURY. A facsimile transmission of this signed agreement shall be legal and
binding on all parties hereto. The headings of this Agreement are for convenience of reference and shall not form part of, or affect the interpretation of, this Agreement. If any provision of this Agreement shall be invalid or unenforceable in any
jurisdiction, such invalidity or unenforceability shall not affect the validity or enforceability of the remainder of this Agreement or the validity or enforceability of this Agreement in any other jurisdiction. This Agreement may be amended only by
an instrument in writing signed by the party to be charged with enforcement. Any notices, consents, waivers or other communications required or permitted to be given under the terms of this Agreement must be in writing and must be delivered by
(i) courier, mail or hand delivery or (ii) facsimile, and will be deemed to have been delivered upon receipt. The addresses and facsimile numbers for such communications shall be: 
  
 If to the Company: 
  
 Harken Energy Corporation 
 180 State Street 
 Suite 200 
 Southlake 
 Texas 76092 
 Attention: Elmer Johnston, Secretary 
 Telephone: (817) 424 2424 ext. 1207 
 Facsimile: (817) 488 0971 
  
 If
to Buyer: 
  
 As provided in the Subscription
Agreement. 
  
 Each party shall provide five (5) days prior
written notice to the other party of any change in address, telephone number or facsimile number. Written confirmation of receipt (A) given by the recipient of such notice, consent, waiver or other communication, (B) mechanically or electronically
generated by the sender’s facsimile machine containing the time, date, recipient facsimile number and an image of the first page of such transmission or (C) provided by a nationally recognized overnight delivery service shall be rebuttable
evidence of personal service, receipt by facsimile or receipt from a nationally recognized overnight delivery service in accordance with clause (i) or (ii) above, respectively. 
  
 10. ENTIRE UNDERSTANDING. This Agreement (including the other attachments referred to in the Subscription Agreement)
constitutes the entire understanding of the parties hereto with respect to the subject matter hereof and supersedes any and all prior agreements, whether written or oral. This Agreement may be amended only in a written document duly executed by both
parties hereto. 
  
 11. COUNTERPARTS. This Agreement may be
executed in two or more identical counterparts, all of which shall be considered one and the same agreement and shall become effective when counterparts have been signed by each party and delivered to the other party; provided that a facsimile
signature shall be considered due execution and shall be binding upon the signatory thereto with the same force and effect as if the signature were an original, not a facsimile signature. 
  
 12. HEADINGS. The headings of this Agreement are for convenience of reference and shall not form part of, or affect
the interpretation of this Agreement. 
  
 13. SEVERABILITY.
If any provision of this Agreement shall be invalid or unenforceable in any jurisdiction, such invalidity or unenforceability shall not affect the validity or enforceability of the 
  

 11 

 remainder of this Agreement in that jurisdiction or the validity or enforceability of any provision of this Agreement in
any other jurisdiction. 
  
 14. SUCCESSORS AND ASSIGNS.
Except as otherwise provided herein, this Agreement shall be binding upon and inure to the benefit of the parties and their respective successors and assigns, including any Permitted Assignee (as defined below). The Company shall not assign this
Agreement or any rights or obligations hereunder without the prior written consent of the Buyer, other than by merger or consolidation. The Buyer may assign some or all of its rights hereunder to an affiliate or associate of the Buyer or an entity
or fund which has the same principal investment advisor as the Buyer, without the consent of the Company, and to others, with the written consent of the Company (in each case, a “Permitted Assignee”); provided; however, that any such
assignment shall not release the Buyer from its obligations hereunder unless such obligations are assumed by such assignee and the Company has consented to such assignment and assumption. Notwithstanding anything to the contrary contained in this
Agreement, the Buyer shall be entitled to pledge the Notes in connection with a bona fide margin account. 
  
 15. NO THIRD PARTY BENEFICIARIES. This Agreement is intended for the benefit of the parties hereto and their respective permitted successors and
assigns, and is not for the benefit of, nor may any provision hereof be enforced by, any other person. 
  
 16. SURVIVAL. The representations, warranties and agreements of the Company and the Buyer contained in the Agreement shall survive the closing.

  
 17. PUBLICITY. The Company shall be entitled, without
the prior approval of the Buyer, to make any press release or other public disclosure with respect to such transactions as is required by applicable law and regulations. 
  
 18. FURTHER ASSURANCES. Each party shall do and perform, or cause to be done and performed, all such further acts and
things, and shall execute and deliver all such other agreements, certificates, instruments and documents, as the other party may reasonably request in order to carry out the intent and accomplish the purposes of this Agreement and the consummation
of the transactions contemplated hereby. 
  
 19. PLACEMENT
AGENT. The Buyer and the Company each acknowledges and warrants that it has not engaged any placement agent in connection with the sale of the Notes other than RP&C International Inc., which has been engaged by the Company and whose fees
will be exclusively paid by the Company. The Company and the Buyer shall each be responsible for the payment of any fees or commissions of placement agents or brokers engaged, directly or indirectly, by the Company or the Buyer, respectively, in
connection with the purchase of the Notes by the Buyer. The Company and the Buyer shall pay, and hold the other party harmless against, any liability, loss or expense (including, without limitation, reasonable attorneys’ fees and out-of-pocket
expenses) arising in connection with any such claim. 
  
 20. NO
STRICT CONSTRUCTION. The language used in this Agreement will be deemed to be the language chosen by the parties to express their mutual intent, and no rules of strict construction will be applied against any party. 
  
 21. REMEDIES. The Buyer and each Permitted Assignee shall have all
rights and remedies set forth in this Agreement and all rights and remedies which such holders have been granted at any time under any other agreement or contract and all of the rights which such holders have under any law. Any person having any
rights under any provision of this Agreement shall be entitled to enforce such rights specifically (without posting a bond or other security), to recover damages by reason of any breach of any provision of this Agreement and to exercise all other
rights granted by law. The Buyer and each Permitted Assignee without 
  

 12 

 prejudice may withdraw, revoke or suspend its pursuit of any remedy at any time prior to its complete recovery as a
result of such remedy. 
  
 22. PAYMENT SET ASIDE. To the
extent that the Company makes a payment or payments to the Buyer hereunder or the Buyer enforces or exercises its rights hereunder or thereunder, and such payment or payments or the proceeds of such enforcement or exercise or any part thereof are
subsequently invalidated, declared to be fraudulent or preferential, set aside, recovered from, disgorged by or are required to be refunded, repaid or otherwise restored to the Company, a trustee, receiver or any other person under any law
(including, without limitation, any bankruptcy law, state or federal law, common law or equitable cause of action), then to the extent of any such restoration the obligation or part thereof originally intended to be satisfied shall be revived and
continued in full force and effect as if such payment had not been made or such enforcement or setoff had not occurred. 
  
 23. DAYS. Unless the context refers to “business days” or “Trading Days”, all references herein to “days” shall mean
calendar days. 
  

 135% Senior Convertible Note Due 2009

 Exhibit 4.23 
  
 5% SENIOR CONVERTIBLE NOTE DUE 2009 
  
 ISIN No. XS0194584313 
 Common Code 019458431 
  
 NEITHER THIS NOTE NOR THE SHARES OF COMMON STOCK ISSUABLE ON CONVERSION OR REDEMPTION OF THIS NOTE (THE “SHARES”) HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR THE
SECURITIES LAWS OF ANY STATE. THE HOLDER HEREOF, BY PURCHASING THIS NOTE, AGREES FOR THE BENEFIT OF THE COMPANY THAT THIS NOTE AND THE SHARES MAY NOT BE RESOLD, PLEDGED OR OTHERWISE TRANSFERRED OR DISPOSED OF UNLESS THE NOTE OR THE SHARES AS THE
CASE MAY BE, HAS BEEN REGISTERED UNDER THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES OR BLUE SKY LAWS OR EXEMPTIONS FROM THE REGISTRATION REQUIREMENTS OF SUCH LAWS ARE AVAILABLE. 
  
 IF THE HOLDER OF THIS NOTE WAS AN AFFILIATE OF THE COMPANY AT ANY TIME
DURING THE THREE MONTHS PRECEDING THE DATE OF ANY SUCH TRANSFER, THE FOREGOING CONDITIONS MUST BE COMPLIED WITH REGARDLESS OF WHEN SUCH TRANSFER IS MADE. 
  
 ANY UNITED STATES PERSON WHO HOLDS THIS OBLIGATION WILL BE SUBJECT TO LIMITATIONS UNDER THE U.S. INCOME TAX LAWS, INCLUDING THE LIMITATIONS PROVIDED IN
SECTIONS 165(j) AND
 1287(a) OF THE UNITED STATES INTERNAL REVENUE CODE OF 1986, AS AMENDED. 
  
 THIS OBLIGATION IS NOT A DEPOSIT AND IS NOT INSURED BY ANY AGENCY OF THE UNITED STATES GOVERNMENT. 
  
 HARKEN ENERGY CORPORATION 
 5% SENIOR CONVERTIBLE NOTES DUE 2009 
  
 GLOBAL NOTE 
  
 Harken Energy Corporation, a Delaware corporation (hereinafter, the “Company,” which term includes any successor to the Company), for value
received, hereby promises to pay to The Bank of New York Depository (Nominees) Limited, upon presentation and surrender of this Global Note (the “Global Note”) the principal sum of FIVE MILLION TWO HUNDRED AND FORTY-FIVE THOUSAND DOLLARS
(U.S. $5,245,000) (the “Principal Amount”) on June 30, 2009, and to pay interest thereon from and including the Issue Date, semi-annually in arrears on December 31 and June 30 in each year, commencing December 31, 2004 (each an “
Interest Payment Date”), at the rate of 5% per annum, calculated on the basis of a 360-day year consisting of twelve 30-day months, until the principal hereof is paid or payment thereof is duly provided for; provided, however, that the
Principal Amount payable upon presentation and surrender may be reduced from time to time in connection with conversions, redemptions, purchases, cancellations and similar events described in the Terms and Conditions hereof, and such reductions
shall be duly noted on Schedule A hereto 

 (which is incorporated herein by this reference as if set out in full); and provided further that interest
accruing after the date of a reduction in Principal Amount shall be calculated with reference to the new Principal Amount. While the Notes are registered in the name of the Common Depository, payments of interest on each Note shall be paid by the
Paying Agent on each Interest Payment Date, commencing December 31, 2004, to the Holder of such Note as shown on the Note Register at the close of business on the applicable Record Date, such payment to be made in accordance with the rules and
procedures of Euroclear or Clearstream, as the case may be. 
  
 Upon failure of the Company to make any payment of interest or principal on the date when due and payable, the outstanding principal balance of the Notes and, to the extent permitted by law, interest thereon will bear interest at the
Default Rate beginning on the date such payment was due until the default is cured. 
  
 Notwithstanding any other provision of the Notes to the contrary, in no event shall the interest contracted for, charged or received in connection with the Notes (including any other costs or considerations that
constitute interest under applicable law which are contracted for, charged or received pursuant to the Notes) exceed the maximum rate of nonusurious interest allowed under applicable law as presently in effect and to the extent an increase is
allowable by such laws, but in no event shall any amount ever be paid or payable greater than the amount contracted for in the Notes, and all amounts paid by the Company which constitute usurious interest under the applicable law shall be applied in
the manner described herein. 
  
 To the extent permitted by law,
interest contracted for, charged or received on the Notes shall be allocated over the entire term of the Notes, to the end that interest paid on the Notes does not exceed the maximum amount permitted to be paid thereon by law. 
  
 The principal and interest on the definitive Notes shall be payable at the
office or agency of the Company maintained for such purpose in the City of London and the City of New York, New York, or at such other office of agency of the Company as may be maintained for such purpose. 
  
 This Global Note has been issued pursuant to resolutions adopted by the Board
of Directors of the Company on June 1, 2004. This Global Note is a permanent security and is exchangeable in whole for definitive Notes in bearer form, with interest coupons attached, upon the event specified in the Terms and Conditions herein.

  
 Until transferred in full for the definitive Notes in
certificated form, this Global Note shall in all respects be ratably entitled to the same benefits under, and subject to the same Terms and Conditions of the definitive Notes authenticated and delivered hereunder. 
  
 This Global Note, the definitive Notes, and the Terms and Conditions shall be
governed by and construed in accordance with the laws of the State of New York. 
  
 Unless the certificate of authentication hereon has been executed by the Authenticating Agent by manual signature of one of its authorized signatories, this Global Note shall not be entitled to any benefit under the
Terms and Conditions and shall not be valid or obligatory for any purpose. 
  

 2 

 IN WITNESS WHEREOF, the Company has caused this book-entry Note to be duly executed in its corporate name
by the manual or facsimile signatures of the undersigned duly authorized officers of the Company. 
  
 Dated as of August 19, 2004. 
  

			
	 HARKEN ENERGY CORPORATION

		
	 By:
	 	/s/    Anna M. Williams
	 	 	 Anna M. Williams, Executive Vice
 President-Finance
and Chief Financial Officer

  
 [Corporate Seal] 
  
 ATTEST: 
  

			
		
	 By:
	 	 /s/    Elmer Johnston

	 	 	Elmer Johnston, Secretary

  
 CERTIFICATE OF
AUTHENTICATION 
  
 This Global Note is the Note referred to in the
within mentioned Terms and Conditions. 
  

					
	 	 	THE BANK OF NEW YORK,
	 	 	Authenticating Agent
			
	 Date: August 19, 2004        
	 	By:	 	/s/
	 	 	Name:	 	 
	 	 	Title:	 	 

  

 3 

 TERMS AND CONDITIONS OF THE NOTES 
  
 The U.S. $5,245,000 of 5% Senior Convertible Notes Due 2009 (the “Notes”) of Harken Energy Corporation, a Delaware
corporation (the “Company”) are constituted by, and authorized to be issued pursuant to these Terms and Conditions and resolutions of the Board of Directors of the Company adopted on June 1, 2004. 
  
 Copies of a paying and conversion agency agreement dated as of 6 August, 2004
(the “Agency Agreement”), made between the Company and The Bank of New York, as paying and conversion agent (the “Paying Agent” and “Conversion Agent,” respectively, which expressions shall include any successors and
assigns) are available for inspection during normal business hours by the holders of the Notes (“Noteholders”) and the Couponholders at the specified office of the Paying Agent. The Noteholders are entitled to the benefit of, are bound by,
and are deemed to have notice of all the provisions of the Agency Agreement. 
  
 Certain terms not otherwise defined in the text hereof are defined in Condition 19 herein. 
  
 1. Form, Denominations, and Title, and Certain Administrative Provisions 
  

(A) The Notes if issued in definitive bearer form will be serially numbered, in denominations of U.S. $1,000 or multiples thereof (the “Authorized
Denomination”), each with Coupons attached on issue, and with such numerical and other identification designation as the Company shall deem desirable. 
  
 (B) Title to the Notes and to the Coupons in certificated form will pass by delivery. The Company and the Paying Agent and Conversion Agent may (to the
fullest extent permitted by applicable laws) deem and treat the Holder of any Note and the Holder of any Coupon as the absolute owner thereof for all purposes (whether or not the Note or Coupon shall be overdue and notwithstanding any notice to the
contrary). 
  
 Beneficial interests in the Notes will be
represented by a global note (the “Global Note”), without interest coupons, which will be deposited with a common depository (the “Common Depository”) and held on behalf of Morgan Guaranty Trust Company of New York, as operator
of the Euroclear System (“Euroclear”), and Clearstream, société anonyme (“Clearstream”), for credit to the accounts designated by the Noteholders at Euroclear and Clearstream. Except as provided herein, certificates
will not be issued in exchange for beneficial interests in this Global Note. 
  
 (C) The Notes shall be executed on behalf of the Company by its Vice President-Finance and Chief Financial Officer under its corporate seal or a facsimile of such seal reproduced thereon and attested by
its Secretary. The signature of any of these officers on the Notes may be manual or facsimile signatures of the present or any future such authorized officer and may be imprinted or otherwise reproduced on the Notes. 
  
 Notes bearing the manual or facsimile signatures of individuals who were at
any time the proper officers of the Company shall bind the Company, notwithstanding that such individuals or any of them have ceased to hold such offices prior to the authentication and delivery of such Notes or did not hold such offices at the date
of such Notes. 
  
 At any time and from time to time hereafter,
the Company may deliver Notes executed by the Company to the Authenticating Agent for authentication, together with a Company order for the authentication and delivery of such Notes, and the Authenticating Agent in accordance with such Company order
shall authenticate and deliver such Notes. Such Company order shall specify the amount of Notes to be authenticated and the date on which the original issue of Notes is to be authenticated. 
  
 The Global Note shall be dated as of the date of authentication. 

 
 No Note shall be entitled to any benefit hereunder or be valid or
obligatory for any purpose until the certificate of authentication substantially in the form hereto is duly executed by the Authenticating Agent by the manual signature of 
  

 4 

 an authorized signatory of such Authentication Agent, and such certificate upon any Note shall be conclusive evidence,
and the only evidence, that such Note has been duly authenticated and delivered hereunder and is entitled to the benefits of these Terms and Conditions. 
  
 In case the Company, pursuant to Conditions 3(B) and 3(C), shall be consolidated or merged with or into any other Person or shall convey, transfer, lease
or otherwise dispose of its Properties and assets substantially as an entirety to any Person, and the successor Person resulting from such consolidation, or surviving such merger, or into which the Company shall have been merged, or the Person which
shall have received a conveyance, transfer, lease or other disposition as aforesaid, shall have entered into an amendment hereto, any of the Notes authenticated or delivered prior to such consolidation, merger, conveyance, transfer, lease or other
disposition may, from time to time, at the request of the successor Person, be exchanged for other Notes executed in the name of the successor Person with such changes in phraseology and form as may be appropriate, but otherwise in substance of like
tenor as the Notes surrendered for such exchange and of like principal amount; and the Authenticating Agent, upon Company order of the successor Person, shall authenticate and deliver Notes as specified in such request for the purpose of such
exchange. 
  
 (D) If the Common Depository referred to in
Condition 1(F) notifies the Company that it is unwilling or unable to continue as Common Depository for this Global Note, the Company shall use its best efforts to identify and appoint a successor depository within 90 days of such notice. Pending
the preparation of definitive Notes, if required herein, the Company may execute, and upon Company order the Authenticating Agent shall authenticate and deliver, temporary Notes which are printed, lithographed, typewritten, mimeographed or otherwise
produced and in the Authorized Denomination, substantially of the tenor of the definitive Notes in lieu of which they are issued and with such appropriate insertions, omissions, substitutions and other variations as the officers executing such Notes
may determine, as conclusively evidenced by their execution of such Notes. 
  
 If temporary Notes are required to be issued pursuant to these Conditions, the Company will cause definitive Notes to be prepared thereafter without unreasonable delay. After the preparation of definitive Notes, the
temporary Notes shall be exchangeable for definitive Notes upon surrender of the temporary Notes at the office or agency of the Company designated for such purpose without charge to the Noteholder. Upon surrender for cancellation of any one or more
temporary Notes, the Company shall execute and the Authenticating Agent shall authenticate and deliver in exchange therefor a like principal amount of definitive Notes of the Authorized Denomination or multiples thereof. Until so exchanged, the
temporary Notes shall in all respects be entitled to the same benefits under these Terms and Conditions as the definitive Notes. 
  
 (E) Upon surrender for exchange of any Note at the office or agency of the Company designated pursuant to these Conditions, the Company shall execute, and
the Authenticating Agent shall authenticate and deliver, in the name of the designated transferee or transferees, one or more new Notes of the Authorized Denomination or denominations of a like aggregate principal amount. 
  
 Furthermore, any Holder of this Global Note, by acceptance of this Global
Note, agrees that transfers of beneficial interest in such Global Note may be effected only through a book-entry system maintained by the Holder of the Global Note (or its agent), and that ownership of a beneficial interest in this Global Note shall
be required to be reflected by way of book entry. 
  
 All Notes
issued upon any exchange of Notes shall be the valid obligations of the Company, evidencing the same debt, and entitled to the same benefits hereunder, as the Notes surrendered upon such exchange. 
  
 Every Note presented or surrendered for exchange shall (if so required by the
Company) be duly endorsed, or be accompanied by a written instrument of transfer, in form satisfactory to the Company, duly executed by the Noteholder thereof or such Noteholder’s attorney duly authorized in writing. 
  

 5 

 Except as otherwise provided herein, no service charge shall be made for any exchange, conversion or
redemption of Notes, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with any exchange of Notes. 
  
 The Company shall not be required (i) to issue or exchange any Note during a period beginning at the opening of business 15
days before the selection of Notes to be redeemed hereunder and ending at the close of business on the day of such mailing of the relevant notice of redemption, (ii) to exchange any Note so selected for redemption in whole or in part, except the
unredeemed portion of any Note being redeemed in part, or (iii) to register the transfer of or exchange of any Note during a period beginning five days before the date of Maturity and ending on such date of Maturity. 
  
 (F) (1) This Global Note shall be delivered to the Common Depository. Members
of, or participants in, Euroclear and Clearstream (“Agent Members”) shall have no direct rights hereunder with respect to any Global Note held on their behalf by the Common Depository, or under such Global Note. The Common Depository may
be treated by the Company, and any agent of the Company, as the absolute owner of such Global Note for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall prevent the Company or any agent of the Company from giving effect to
any written certification, proxy or other authorization furnished by the Common Depository or shall impair, as between the Common Depository and the Agent Members, the operation of customary practices governing the exercise of the rights of a
Noteholder. 
  
 (2) Transfers of the Global Note shall be limited
to transfers of the Global Note in whole, but not in part, to the Common Depository, its successors or their respective nominees. Interests of beneficial owners in the Global Note may be transferred in accordance with the rules and procedures of the
Common Depository, Euroclear, Clearstream, and the provisions hereof. Definitive Notes in bearer form shall be transferred to all beneficial holders in exchange for their beneficial interests in the Global Note in accordance with the Common
Depository’s procedures only if the Common Depository notifies the Company that it is unwilling or unable to continue as Common Depository for the Global Note and a successor depository is not appointed by the Company within 90 days of such
notice, or an Event of Default has occurred and is continuing and the Company has received a request from any owner of a beneficial interest in the Global Note for such a transfer. 
  
 (3) In connection with any transfer of beneficial interests in this Global Note to beneficial owners pursuant to subsection
(2) of this Condition, the Common Depository shall reflect on its books and records the date and a decrease in the Principal Amount of this Global Note in an amount equal to the principal amount of the beneficial interests in this Global Note to be
transferred, and the Company shall execute, and the Authenticating Agent shall authenticate and deliver, one or more definitive Notes in bearer form of like tenor and amount. 
  
 (4) In connection with the transfer of the beneficial interests in the entire Global Note to beneficial owners pursuant to
subsection (2) of this Condition, this Global Note shall be deemed to be surrendered to the Conversion and Paying Agent for cancellation, and the Company shall execute, and the Authenticating Agent shall authenticate and deliver, to each beneficial
owner identified by the Common Depository, in exchange for its beneficial interest in this Global Note, an equal aggregate principal amount of definitive Notes in bearer form. 
  
 (5) Any definitive Note in bearer form delivered in exchange for an interest in this Global Note pursuant to subsection (2)
or subsection (3) of this Condition shall bear the applicable legend regarding transfer restrictions applicable to the bearer Note as counsel to the Company shall advise the Company. 
  
 (6) The Holder of this Global Note may grant proxies and otherwise authorize any person, including Agent Members and persons
that may hold interests through Agent Members, to take any action which a Noteholder is entitled to take under these Terms and Conditions. 
  
 (7) Any definitive Note in bearer form delivered in exchange for an interest in this Global Note pursuant to subsection (2) or (3) of this Condition will
prior to delivery to the Noteholder have all matured Coupons as of such delivery date, which are attached to such bearer Note, cancelled and voided by the Authenticating Agent. 
  

 6 

 (8) Nothing contained herein shall be deemed to authorize any transfers (by book-entry or otherwise) of
this Global Note otherwise than in accordance with the Securities Act. Unless otherwise required by applicable law, neither the Company nor the Common Depository shall recognize or give effect to any attempt to transfer (by book entry or otherwise)
or convert any Note or any interest therein in violation of the Securities Act. 
  
 (G) The Noteholders by acceptance of the Notes hereby covenant and agree that neither the Notes nor the Conversion Shares will be offered, sold, transferred, pledged, converted or otherwise disposed of
unless the Notes and/ or the Conversion Shares have been registered under the Securities Act or any applicable state securities or blue sky laws or exemptions from the registration requirements of such laws are available. 
  
 (H) If (i) any mutilated Note or Coupon is surrendered to the Authenticating
Agent, or (ii) the Company and the Authentication Agent receive evidence to their satisfaction of the destruction, loss or theft of any Note or Coupon, and there is delivered to the Company and the Authenticating Agent such security and/or indemnity
as may be required by them to save each of them harmless, then, in the absence of notice to the Company or the Authenticating Agent that such Note or Coupon has been acquired by a bona fide purchaser, the Company shall execute and upon Company order
the Authenticating Agent shall authenticate and deliver, in exchange for any such mutilated Note or Coupon or in lieu of any such destroyed, lost or stolen Note or Coupon, a new Note or Coupon of like tenor and principal amount, bearing a number not
contemporaneously Outstanding. 
  
 In case any such mutilated,
destroyed, lost or stolen Note or Coupon has become or is about to become due and payable, the Company in its discretion may, instead of issuing a new Note or Coupon, pay such Note or Coupon, as the case may be. 
  
 Upon the issuance of any new Note or Coupon under this Section, the Company
may require the payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other expenses (including the fees and expenses of the Authenticating Agent) connected therewith. 

 
 Every new Note or Coupon issued pursuant to this Section in lieu of any
destroyed, lost or stolen Note or Coupon shall constitute an original additional contractual obligation of the Company, whether or not the destroyed, lost or stolen Note or Coupon shall be at any time enforceable by anyone, and shall be entitled to
all benefits hereunder equally and proportionately with any and all other Notes or Coupons duly issued hereunder. 
  
 The provisions of this Condition are exclusive and shall preclude (to the extent lawful) all other rights and remedies with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Note or Coupon. 
  
 Any new Note issued under this Condition 1(H) in lieu of any destroyed, lost or stolen Note shall be issued by the Authenticating Agent with all matured Coupons as of such date of issuance cancelled or voided. 
  
 2. Status 
  
 The Notes and any Coupons are direct, unconditional and unsecured obligations of the Company and will rank pari
passu, without any preference among themselves. The Notes and any Coupons will rank senior to all Subordinated Obligations of the Company, present and future, but, in the event of bankruptcy or insolvency of the Company, only to the extent
permitted by the applicable laws relating to creditors’ rights. The Notes will not be secured by any assets or property of the Company. The Notes and any Coupons will rank pari passu with all other present and future unsecured
Indebtedness of the Company other than Subordinated Obligations. 
  
 3.
Covenants 
  
 (A) The Company will do or cause to be done all
things necessary to preserve and keep in full force and effect its corporate existence, rights (charter and statutory) and franchises of the Company; provided, however, that the 
  

 7 

 Company shall not be required to preserve any such right or franchise if the Board of Directors shall determine that the
preservation thereof is no longer in the best interests of the Company and the conduct of its business, and that the loss thereof is not disadvantageous in any material respect to the Noteholders; and provided, further, that nothing contained in
this Condition 3(A) shall prohibit any transaction permitted by Condition 3(B) or Condition 3(C) herein. 
  
 (B) The Company will not merge or consolidate with or sell, convey, transfer or lease or otherwise dispose of all, or substantially all of its Properties
and assets substantially as an entirety to any Person, unless: (a) either (i) the Company shall be the surviving Person or (ii) the Person (if other than the Company) formed by such consolidation or into which the Company is merged or the Person
which acquired by conveyance or transfer, or which leases, the Properties and assets of the Company substantially as an entirety (1) shall be a Person organized and validly existing under the laws of the United States of America, any state thereof
or the District of Columbia and (2) shall expressly assume, by a written instrument, the Company’s obligation for the due and punctual payment of the principal of and interest on all the Notes and the performance and observance of every Term
and Condition contained herein and in the Agency Agreement. 
  
 (C) Upon any consolidation of the Company with or merger of the Company with or into any other Person or any conveyance, transfer or lease of the Properties and assets of the Company substantially as an entirety to any person, the successor
Person formed by such consolidation or into which the Company is merged or to which such conveyance, transfer or lease is made shall succeed to, and be substituted for, and may exercise every right and power of, the Company under the Terms and
Conditions contained herein with the same effect as if such successor Person had been named as the Company herein, and in the event of any such conveyance or transfer, the Company, except in the case of a lease, shall be discharged of all
obligations and covenants under the Notes and may be dissolved and liquidated. 
  
 (D) The Company will maintain in at least one European city an office or agency where Notes may be presented or surrendered for payment, where Notes may be surrendered for conversion or exchange and where notices and
demands to or upon the Company in respect of the Notes may be served. The corporate trust office of the Paying Agent at One Canada Square, 48th Floor, London, E14 5AL, England shall be such office or agency of the Company, unless the Company shall designate and maintain some other offices or agencies for one or more of such purposes pursuant
to the terms of the Agency Agreement. The Company will give prompt written notice to the Noteholders of any change in the location of any such offices or agencies. 
  
 The Company may also from time to time designate one or more other offices or agencies (in or outside of Europe) where the
Notes may be presented or surrendered for any or all such purposes and may from time to time rescind any such designation; provided, that no such designation or rescission shall in any manner relieve the Company of its obligation to maintain an
office or agency in Europe for such purposes. The Company will give prompt written notice to the Noteholders of any such designation or rescission and any change in the location of any such other office or agency. 
  
 (E) The Company will pay or discharge or cause to be paid or discharged,
before the same shall become delinquent, (a) all taxes, assessments and governmental charges levied or imposed upon the Company or upon the income, profits or Property of the Company and (b) all lawful claims for labour, materials and supplies
which, if unpaid, might by law become a Lien upon the Property of the Company; provided, however, that the Company shall not be required to pay or discharge or cause to be paid or discharged any such tax, assessment, charge or claim whose
amount, applicability or validity is being contested in good faith by appropriate proceedings. 
  
 (F) The Company will not amend its Certificate of Incorporation or Bylaws except as required by law, except in respect to such amendments that the Board of Directors reasonably determines do not materially adversely
affect the rights of the Noteholders, or except to the extent that such amendment would not have a material adverse effect on (a) the ability of the Company to perform its obligations under the Notes or (b) the rights of the Noteholders, except that
neither (i) increases in the number of Shares and issuance thereof with related securities, nor (ii) designations of Preferred Stock of the Company, modifications of the terms of such designations and issuance thereof with related securities, nor
(iii) modification or expansion of the indemnity provisions provided by the Company to its directors and officers, nor (iv) change of the Company’s registered agent shall be deemed an amendment hereunder. 
  

 8 

 (G) To the extent permitted by law, the Company will provide to the Paying Agent or to any Noteholder
such statements, certificates or other documentation concerning the organization or operations of the Company as may be reasonably necessary to establish any exceptions or exemptions from United States federal income tax withholding and reporting
requirements. 
  
 (H) The Company shall file a registration
statement on Form S-3 (or such other form as the Company may determine is appropriate or required under the rules of the Commission), by 31 December 2004 in respect of all Shares that may be issuable at any time upon the conversion or redemption of
the Notes. If the Notes are not Freely Tradeable, and an event occurs under condition 6(C) hereof which causes the Company to issue additional Conversion Shares as to which Rule 416 of Regulation C under the Securities Act does not apply, the
Company shall file a registration statement with respect to such shares on Form S-3 (or other form as the Company may determine is appropriate or required under the Commission) within ninety (90) days following such event. The Company shall use its
best efforts to cause the Commission to declare such registration statement(s) (and any necessary amendments thereto) effective. The Company shall also use its best efforts to maintain the effectiveness of such registration statement(s), and to
refile such a registration statement from time to time in the event its effectiveness lapses, until all such Shares that either are issued or that may be issued are otherwise Freely Tradable in the United States. 
  
 While any Conversion Right remains exercisable, the Company will use its best
efforts to list and maintain a listing of all Shares issued upon conversion or redemption of the Notes on a Stock Exchange. In the event a Stock Exchange requires stockholder approval in order to complete the listing of the Shares to be so issued
upon conversion or redemption of the Notes, then the Company will use its best efforts to obtain such stockholder approval at the earliest possible stockholder meeting. In this event, the conversion or redemption in Shares will occur only if and
when stockholder approval has been obtained. If the Company is unable to obtain or maintain such listing of Shares, it will forthwith give not less than 30 calendar days notice to the Noteholder of the listing, de-listing or quotation or lack of
quotation of the Shares (as a class) by any such Stock Exchange. 
  
 (I) If the Company shall at any time act as its own Paying Agent, it will, on or before each due date of the principal of or interest on any of the Notes, segregate and hold in trust for the benefit of the Persons entitled thereto a sum
sufficient to pay the principal or interest so becoming due until such sums shall be paid to such Persons or otherwise disposed of as herein provided and will promptly notify the Paying Agent of its action or failure so to act. 
  
 Whenever the Company shall have one or more Paying Agents for the Notes, it
will, on or before 3:00 p.m. (London time) on the Business Day immediately preceding each due date of the principal of or interest on any Notes, deposit with a Paying Agent a sum sufficient to pay the principal or interest so becoming due, such sum
to be held in trust for the benefit of the Persons entitled to such principal or interest. 
  
 Pursuant to the terms of the Agency Agreement, the Paying Agent shall agree with the Company, subject to the provisions of this Condition, that such Paying Agent will: 
  
 (1) hold all sums held by it for the payment of the
principal of or interest on Notes in trust for the benefit of the Persons entitled thereto until such sums shall be paid to such Persons or otherwise disposed of as herein provided; and 
  
 (2) notify the Company by facsimile transmission or by telex if the Paying Agent has not, by the due date
for the payment of any principal and/or interest in respect of the Notes or Coupons received unconditionally the full amount of such principal and interest due. 
  

Any money deposited with the Paying Agent, or then held by the Company, in trust for the payment of the principal of or interest on any Note and
remaining unclaimed for two years after such principal or interest has become due and payable shall be paid to the Company on the Company order, 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 
  

 9 

 the Company for payment thereof, and all liability of the such Paying Agent with respect to such trust money, and all
liability of the Company as trustee thereof, shall thereupon cease; provided, however, that the Paying Agent, before being required to make any such repayment, may at the expense of the Company cause to be published once, in the Authorized
Newspaper, notice that such money remains unclaimed and that, after a date specified therein, which shall not be less than 30 days from the date of such publication, any unclaimed balance of such money then remaining will be repaid to the Company.

  
 4. Interest 
  
 The Notes bear interest from (and including) the Issue Date, at the rate of
five percent (5%) per annum, payable semi-annually in arrears on June 30 and December 31 in each year (each an “Interest Payment Date”), the first such payment to be made on
 December 31, 2004, in respect of the period from (and
including) the Issue Date to (but excluding) December 31, 2004, and the interest payable will equal U.S. $250.00 per U.S. $10,000 principal amount of the Notes for each complete semi-annual interest period. 
  
 Each Note will cease to bear interest (i) from its due date for redemption
unless the Company shall default in the payment of the Redemption Price, in which event interest shall continue to accrue as provided herein, or (ii) where the Conversion Right shall have been voluntarily exercised by the Noteholder, from the
Conversion Date, or (iii) in the case of a Mandatory Conversion, from the Mandatory Conversion Date. 
  
 Interest is calculated on the basis of a 360 day year consisting of 12 months of 30 days each and, in the case of an incomplete month, the number of days
elapsed. 
  
 5. Payments 
  
 For so long as the Notes are represented by a Global Note, beneficial
interests in this Global Note will be shown on, and transfers thereof will be effected only through, records maintained by, and in accordance with the rules and procedures of, Euroclear or Clearstream, as the case may be. 
  
 While the Notes are registered in the name of the Common Depository, payments
of interest on each Note shall be paid by the Paying Agent on each Interest Payment Date, commencing December 31, 2004, to the Holder of such Note as shown on the Note Register at the close of business on the applicable Record Date, such payment to
be made in accordance with the rules and procedures of such Common Depository and in accordance with the rules and procedures of Euroclear or Clearstream, as the case may be. 
  
 In case of certificated Notes, payments of principal in respect of each Note and any net proceeds payable under Condition
6(D) will only be made, against presentation and surrender (or, in the case of part payment only, endorsement) of the relevant Note at the specified office of the Paying Agent. Payments of interest due on the Notes on an Interest Payment Date will
be made against presentation and surrender (or, in the case of part payment only, endorsement) of the relevant Coupons at the specified office of the Paying Agent. All payments of principal and interest shall be made in U.S. dollars. Each such
payment and any payment of the net proceeds of the sale of Shares pursuant to Condition 6(D) will be made at the specified office of any Paying Agent, or at the option of the Holder, by U.S. dollar cheque mailed to an address, or delivered in
accordance with the Holder’s instructions, or by transfer to a U.S. dollar account maintained by the Holder in accordance with the Holder’s instructions, subject in all cases to any applicable fiscal or other laws and regulations, but
without prejudice to the provisions of Condition 9. 
  
 If, at any
time, in the opinion of the Company or of the Paying Agent, payments in U.S. dollars cannot be so made, payments will be made in U.S. dollars in such other manner as may be approved by the Company and the Paying Agent and notice of the alternative
manner of payment will be given to the Noteholders in accordance with Condition 15. 
  
 Each Note must be presented for redemption together with all unmatured Coupons relating to such Note, failing which the full amount of any missing unmatured Coupon (or, in the case of payment not being made in full,
that 
  

 10 

 proportion of the full amount of the missing unmatured Coupons which the amount so paid bears to the total amount due)
will be deducted from the amount due for payment. Each amount so deducted will be paid in the manner mentioned above against presentation and surrender (or, in the case of part payment only, endorsement) of such missing Coupon at any time before the
expiry of six (6) years after the Relevant Date in respect of the relevant Note (whether or not such Coupon would otherwise have become void pursuant to Condition 10), or, if later, five (5) years after the date on which such Coupon would have
become due, but not thereafter. 
  
 All monies paid by the Company
to the Paying Agent for the payment of principal or interest on any Note which remain unclaimed at the end of two (2) years after the principal on such Note will have become due and payable will be repaid to the Company and the Holder of such Note
or any Coupon appertaining thereto will thereafter have only the rights of a creditor of the Company as described in these Terms and Conditions or such rights as may be otherwise provided by applicable law. 
  
 A Holder shall be entitled to present a Note or Coupon for payment only on a
Presentation Date and shall not be entitled to any further interest or other payment if a Presentation Date is after the due date. 
  
 When making payments to Noteholders or Couponholders, fractions of one cent will be rounded down to the nearest whole cent. 
  
 The name of the initial Paying Agent and Conversion Agent and its initial
specified office is set out at the end of these Terms and Conditions. The Company reserves the right at any time to vary or terminate the appointment of the Paying Agent or Conversion Agent and to appoint additional or other Paying Agents or
Conversion Agents. Notice of any termination or appointment and of any changes in specified offices will be given to the Noteholders promptly by the Company in accordance with Condition 15. 
  
 6. Conversion 
  
 (A) Optional Conversion by the Noteholders; Conversion Period and Price 
  
 (i) Noteholders have the right, subject as provided herein
and to any applicable laws and regulations, to require the Company to convert all or any of their Notes at their principal amount into Shares at any time during the Conversion Period (“Conversion Right”). The Conversion Period begins after
the earlier to occur of (I) the close of the effective date of a Registration Statement filed by the Company with the Commission with respect to the Shares or (II) the date such Shares may be sold pursuant to the exemption from registration under
the Securities Act provided by Rule 144 or other exemption from registration under the Securities Act, and ends upon the earliest to occur of (A) the second Business Day prior to the later of June 30, 2009, or the date on which all principal and
interest on the Notes is repaid in full, (B) if such Notes shall have been called for redemption pursuant to Condition 7, the close of the second Business Day prior to the Redemption Date, or (C) the effective date of a Mandatory Conversion. Upon
conversion, the right of the converting Noteholder to repayment of the principal amount of the Note to be converted (and, subject as provided in Condition 6(B)(iv), accrued and unpaid interest thereon) shall be extinguished and released, and in
consideration and in exchange therefor the Company shall allot and issue Shares credited as paid up in full as provided in this Condition 6. 
  
 The number of Shares to be issued on conversion of a Note will be determined by dividing the principal amount of the Note to be converted,
plus accrued and unpaid interest thereon, by the Conversion Price, (as defined below) in effect on the Conversion Date, with the result being rounded down to the nearest whole number. 
  
 (ii) A Conversion Right may only be exercised in respect of the Authorized Denomination or multiples thereof
of Notes. If more than one Note is converted at any one time by the same Holder, the number of Shares to be issued upon such conversion will be calculated on the basis of the aggregate principal amount of the Notes to be converted. Fractions of
Shares will not be issued on conversion and no cash adjustments will be made in respect thereof. 
  

 11 

 (iii) Except for conversions pursuant to Condition 7(B)(iii), the price at which Shares
will be issued upon the exercise of a Conversion Right initially will be U.S. $0.52. The Conversion Price will be subject to adjustment in accordance with the manner provided in Condition 6(C). The Company shall give notice of any adjustment of the
Conversion Price in accordance with Condition 15 within ten (10) Business Days of the effective date of such adjustment. 
  
 (iv) Notwithstanding the provisions of paragraph (i) of this Condition 6(A), if the Company shall default in making payment in full in
respect of any Note which shall have been called for redemption or shall fail to issue Shares in respect of any Conversion or redemption, then, from the Relevant Date, interest shall continue to accrue on such Note and the Conversion Right attaching
to such Note will continue to be exercisable (unless already exercised by the Company pursuant to Condition 6(D)) up to, and including the close of business (at the place where the Note is deposited in connection with the exercise of the Conversion
Right) on the date upon which the full amount of the monies payable in respect of such Note has been duly received by the Paying Agent or, the date of the issuance of the Conversion Shares or Redemption Shares. 
  
 (B) Procedure for Conversion 
  
 (i) To exercise the Conversion Right attaching to any Note,
the Holder thereof must complete, execute and deposit at his own expense during normal business hours at the specified office of the Conversion Agent, a notice of conversion (a “Conversion Notice”) in the form for the time being currently
obtainable from the specified office of such Conversion Agent, together with the relevant Note and any amount to be paid by the Noteholder pursuant to this Condition 6(B)(i). The current form of Conversion Notice is attached hereto as Exhibit
A. 
  
 The Conversion Date must fall at a
time when the Conversion Right attaching to that Note is expressed in these Conditions to be exercisable and will be deemed to be the date of the surrender of the Note and delivery of such Conversion Notice and, if applicable, any payment to be made
or indemnity given under these Conditions in connection with the exercise of such Conversion Right. 
  
 A Noteholder delivering a Note for conversion must pay any taxes and capital, stamp, issue and registration duties arising on conversion
(other than any taxes or capital, or stamp duties payable in the U.S. or required by any Stock Exchange, by the Company in respect of the allotment and issue of Shares and listing of the Shares on conversion). A Conversion Notice delivered shall be
irrevocable. 
  
 (ii) As soon as practicable, and
in any event not later than fourteen (14) calendar days after the Conversion Date, the Company will in the case of Notes converted on exercise of the Conversion Right or a Note being converted in accordance with Condition 6(D) and in respect of
which a Conversion Notice has been delivered and the relevant Note, together with all Outstanding Coupons, and amounts payable by the relevant Noteholder deposited as permitted by sub-paragraph (i) above, cause the person or persons designated for
the purpose in the Conversion Notice to be registered as holder(s) of the relevant number of Shares and will make a certificate or certificates for the relevant Shares available for collection at the Company’s principal office in Houston, Texas
or at the Company’s transfer agent in New York, New York, or, if so requested in the relevant Conversion Notice, will deliver such certificate or certificates to the person and at the place specified in the Conversion Notice, at the risk of the
Noteholder, together with any other securities, property or cash required to be delivered upon conversion and such assignments and other documents (if any) as may be required by law to effect the transfer thereof. 
  
 (iii) The person or persons specified for that purpose will
be deemed for all purposes to be the Holder of record of the number of Shares issuable upon conversion with effect from the Conversion Date or Mandatory Conversion Date, as the case may be. The Shares issued upon conversion of the Notes will in all
respects rank pari passu with the issued and outstanding Shares of Common Stock in issue on the relevant Conversion Date or Mandatory Conversion Date, as the case may be, except for any right excluded by mandatory provisions of applicable
law. A Holder of Shares issued on conversion of Notes shall not be entitled to any rights for any record date which precedes the relevant Conversion Date or Mandatory Conversion Date, as the case may be. 
  

 12 

 (iv) If any notice requiring the redemption of any Notes is given pursuant to Condition
7(B) on or after the fifteenth (15th) calendar day prior to the record date in respect of any dividend payable in
respect of the Shares and such notice specifies a date for redemption falling on or prior to the next following Interest Payment Date, interest shall (subject as hereinafter provided) accrue on Notes which shall have been delivered for conversion on
or after such record date from the preceding Interest Payment Date; provided, that the relevant Noteholder’s entitlement to interest on any Note, in the event that the Shares allotted on conversion thereof shall carry an entitlement to receive
such dividend, shall be limited to the amount by which the interest such Noteholder would have received had no conversion taken place exceeds the amount of the dividend received on such Shares. Any such interest shall be paid by the Company not
later than fourteen (14) calendar days after the relevant Conversion Date by U.S. dollar cheque drawn on, or by transfer to U.S. dollar account maintained by the payee with, a bank outside the United States in accordance with instructions given by
the relevant Noteholder. 
  
 (C) Adjustment of Conversion
Price 
  
 (i) Dividends or Distributions
of Common Stock. In case the Company shall pay or make a dividend or other distribution on its Common Stock exclusively in Common Stock or shall pay or make a dividend or other distribution on any other class of capital stock of the Company
which dividend or distribution includes Common Stock, the Conversion Price in effect at the opening of business on the day next following the date fixed for the determination of stockholders entitled to receive such dividend or other distribution
shall be reduced by multiplying such Conversion Price by a fraction of which the numerator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination and the denominator shall be the
sum of such number of shares and the total number of shares constituting such dividend or other distribution, such reduction to become effective immediately after the opening of business on the day next following the date fixed for such
determination. For the purposes of this Condition 6(C)(i), the number of shares of Common Stock at any time outstanding shall not include shares held in the treasury of the Company. For the avoidance of doubt, this Condition does not apply to
dividends or other distributions in shares of the Common Stock pursuant to the terms of the securities to which such dividend or other distribution may be made. 
  
 (ii) Dividends or Distributions of Rights, Warrants or Options to Purchase Common Stock. In case the
Company shall pay or make a dividend or other distribution on its Common Stock consisting exclusively of, or shall otherwise issue to all holders of its Common Stock, rights, warrants or options entitling the holders thereof to subscribe for or
purchase shares of Common Stock at a price per share less than the Market Price per share (determined as further defined in certain circumstances in paragraph (vii) of this Condition 6(C)) of the Common Stock on the date fixed for the determination
of stockholders entitled to receive such rights, warrants or options, the Conversion Price in effect at the opening of business on the day following the date fixed for such determination shall be reduced by multiplying such Conversion Price by a
fraction of which the numerator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination plus the number of shares of Common Stock which the aggregate of the offering price of the
total number of shares of Common Stock so offered for subscription or purchase would purchase at such Market Price and the denominator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such
determination plus the number of shares of Common Stock so offered for subscription or purchase, outstanding at the close of business on the date fixed for such reduction to become effective immediately after the opening of business on the day
following the date fixed for such determination. For the purposes of this paragraph (ii), the number of shares of Common Stock at any time outstanding shall not include shares held in the treasury of the Company. The Company shall not issue any
rights, warrants or options in respect of shares of Common Stock held in the treasury of the Company. 
  
 (iii) Dividends or Distributions in Cash. In case the Company shall, by dividend or otherwise, make a distribution to all holders
of its Common Stock exclusively in cash in an aggregate amount that, together with (1) the aggregate amount of any other distributions to all holders of its Common Stock made exclusively in cash within the 12 months preceding the date of payment of
such distribution and in respect of which no Conversion Price adjustment pursuant to this 6(C)(iii) has been made and (2) the aggregate of any cash plus the fair market value (as determined in 
  

 13 

 good faith by the Board of Directors, whose determination shall be conclusive and described in a
resolution of the Company’s Board of Directors), as of the expiration of the tender or exchange offer referred to below, of consideration payable in respect of any tender or exchange offer by the Company or a Subsidiary for all or any portion
of the Common Stock concluded within the 12 months preceding the date of payment of such distribution and in respect of which no Conversion Price adjustment pursuant to paragraph (vi) of this Condition 6(C) has been made, exceeds five percent (5%)
of the product of the Market Price per share (determined as further defined in certain circumstances in paragraph (vii) of this Condition 6(C)) of the Common Stock on the date fixed for stockholders entitled to receive such distribution times the
number of shares of Common Stock outstanding on such date, the Conversion Price shall be reduced so that the same shall equal the price determined by multiplying the Conversion Price in effect immediately prior to the effectiveness of the Conversion
Price reduction contemplated by this paragraph (iii) by a fraction of which the numerator shall be the Market Price per share (determined as provided Section Condition 6(C)(vi)) of the Common Stock on the date of such effectiveness less the amount
of cash so distributed applicable to one share of Common Stock and the denominator shall be such Market Price per share of the Common Stock, such reduction to become effective immediately prior to the opening of business on the day following the
date fixed for the payment of such distribution. 
  
 (iv) All Other Distributions or Dividends. Subject to the last sentence of this paragraph (iv), in case the Company shall, by dividend or otherwise, distribute to all holders of its Common Stock evidences of its indebtedness, shares
of any class of capital stock, securities, cash or Property (excluding any rights, warrants or options referred to in Condition 6(C)(ii), any dividend or distribution paid exclusively in cash and any dividend or distribution referred to in Condition
6(C)(i), the Conversion Price shall be reduced so that the same shall equal the price determined by multiplying the Conversion Price in effect immediately prior to the effectiveness of the Conversion Price reduction contemplated by this paragraph
(iv) by a fraction of which the numerator shall be the Market Price per share (determined as further defined in certain circumstances in paragraph (vii) of this Condition 6(C)) of the Common Stock on the date of such effectiveness less the fair
market value (as determined in good faith by the Board of Directors, whose determination shall be conclusive and described in a resolution of the Company’s Board of Directors and shall, in the case of securities being distributed for which
prior thereto there is an actual or when issued trading market, be no less than the value determined by reference to the average of the Market Price over the period specified in the succeeding sentence), on the date of such effectiveness, of the
portion of the evidences of indebtedness, shares of capital stock, securities, cash and Property so distributed applicable to one share of Common Stock and the denominator shall be such Market Price per share of the Common Stock, such reduction to
become effective immediately prior to the opening of business on the day next following the date fixed for the payment of such distribution (such date to being referred to as the “Reference Date”). If the Board of Directors determines the
fair market value of any distribution for purposes of this paragraph (iv) by reference to the actual or when issued trading market for any securities comprising such distribution, it must in doing so consider the prices in such market over the same
period used in computing the Market Price per share pursuant to paragraph (vii) of this Condition 6(C). For purposes of this paragraph (iv), any dividend or distribution that includes shares of Common Stock or rights, warrants or options to
subscribe for or purchase shares of Common Stock shall be deemed instead to be (1) a dividend or distribution of the evidences of indebtedness, cash, Property, shares of capital stock or securities other than such shares of Common Stock or such
rights, warrants or options (making any Conversion Price reduction required by this paragraph (iv)) immediately followed by (2) a dividend or distribution of such shares of Common Stock or such rights, warrants or options (making any further
Conversion Price reduction required by Condition 6(C)(i) or (ii)), except (A) the Reference Date of such dividend or distribution as defined in this Condition 6(C)(iv) shall be substituted as “the date fixed for the determination of
stockholders entitled to receive such dividend or other distribution,” “the date fixed for the determination of stockholders entitled to receive such rights, warrants or options,” and “the date fixed for such determination”
within the meaning of Condition 6(C)(i) and Condition 6(C)(ii) and (2) any shares of Common Stock included in such dividend or distribution shall not be deemed “outstanding at the close of business on the date fixed for such determination”
within the meaning of Condition 6(C)(i)). 
  
 (v)
Subdivision of Common Stock. In case outstanding shares of Common Stock shall be subdivided into a greater number of shares of Common Stock, the Conversion Price in effect at the opening of business on the day following the day upon which
such subdivision becomes effective shall be proportionately reduced, and, conversely, in case outstanding shares of Common Stock shall each be combined into a smaller number of shares of Common Stock, the Conversion Price in effect at the opening of
business on the day following the day upon which such 
  

 14 

 combination becomes effective shall be proportionately increased, such reduction or increase, as the case
may be, to become effective immediately after the opening of business on the day following the day upon which such subdivision or combination becomes effective. 
  
 (vi) Tender or Exchange Offer for Common Stock. In case a tender or exchange offer made by the
Company or any Subsidiary for all or any portion of the Common Stock shall expire and such tender or exchange offer shall involve an aggregate consideration having a fair market value (as determined in good faith by the Board of Directors, whose
determination shall be conclusive and described in a resolution of the Company’s Board of Directors) at the last time (the “Expiration Time”) tenders or exchanges may be made pursuant to such tender or exchange offer (as it may be
amended) that, together with (A) the aggregate of the cash plus the fair market value (as determined in good faith by the Board of Directors, whose determination shall be conclusive and described in a resolution of the Company’s Board of
Directors), as of the expiration of the other tender or exchange offer referred to below, of consideration payable in respect of any other tender or exchange offer by the Company or a Subsidiary for all or any portion of the Common Stock concluded
within the preceding 12 months and in respect of which no Conversion Price adjustment pursuant to this paragraph (vi) has been made and (B) the aggregate amount of any distributions to all holders of the Common Stock made exclusively in cash within
the preceding 12 months and in respect of which no Conversion Price adjustment pursuant to Condition 6(C)(v) has been made, exceeds five percent (5%) of the product of the Market Price per share (determined as provided in Condition 6(C)(vii)) of the
Common Stock on the Expiration Time times the number of shares of Common Stock outstanding (including any tendered shares) on the Expiration Time, the Conversion Price shall be reduced (but not increased) so that the same shall equal the price
determined by multiplying the Conversion Price in effect immediately prior to the Expiration Time by a fraction of which the numerator shall be (1) the product of the Market Price per share (determined as provided in Condition 6(C)(vii)) of the
Common Stock at the Expiration Time times the number of shares of Common Stock outstanding (including any tendered or exchanged shares) at the Expiration Time minus (2) the fair market value (determined as aforesaid) of the aggregate consideration
payable to stockholders based on the acceptance (up to any maximum specified in the terms of the tender or exchange offer) of all shares validly tendered or exchanged and not withdrawn as of the Expiration Time (the shares deemed so accepted, up to
any such maximum, being referred to as the “Purchased Shares”) and the denominator shall be the product of (1) such Market Price per share at the Expiration Time times (2) such number of outstanding shares at the Expiration Time less the
number of Purchased Shares, such reduction to become effective immediately prior to the opening of business on the day following the Expiration Time. 
  
 (vii) Determination of Market Price. For the purpose of any computation of the Market Price under this paragraph (vii) and
Conditions 6(C)(ii), (iv) and (v) when certain circumstances described therein have occurred within ten (10) Business Days of the event giving rise to the adjustment in the Conversion Price, (A) if the “ex” date (as hereinafter defined)
for any event (other than the issuance or distribution requiring such computation) that requires an adjustment to the Conversion Price pursuant to paragraphs (i), (ii), (iii), (iv), (v) or (vi) above (“Other Event”) occurs on or after the
tenth Stock Exchange Business Day prior to the date in question and prior to the “ex” date for the issuance or distribution requiring such computation (the “Current Event”), the closing price for each Stock Exchange Business Day
prior to the “ex” date for such Other Event shall be adjusted by multiplying such closing price by the same fraction by which the Conversion Price is so required to be adjusted as a result of such Other Event, (B) if the “ex”
date for any Other Event occurs after the “ex” date for the Current Event and on or prior to the date in question, the closing price for each Stock Exchange Business Day on and after the “ex” date for such Other Event shall be
adjusted by multiplying such closing price by the reciprocal of the fraction by which the Conversion Price is so required to be adjusted as a result of such Other Event, (C) if the “ex” date for any Other Event occurs on the “ex”
date for the Current Event, one of those events shall be deemed for purposes of clauses (A) and (B) of this proviso to have an “ex” date occurring prior to the “ex” date for the other event, and (C) if the “ex” date for
the Current Event is on or prior to the date in question, after taking into account any adjustment required pursuant to clause (B) of this proviso, the closing price for each Stock Exchange Business Day on or after such “ex” date shall be
adjusted by adding thereto the amount of any cash and the fair market value on the date in question (as determined in good faith by the Board of Directors in a manner consistent with any determination of such value for purposes of Condition
6(C)(iii) or Condition 6(C)(iv) or (C), whose determination shall be conclusive and described in a resolution of the Company’s Board of Directors) of the portion of the rights, warrants, options, evidences of indebtedness, shares of capital
stock, securities, cash or Property being distributed 
  

 15 

 applicable to one share of Common Stock. For the purpose of any computation under Condition 6(C)(vi), the
Market Price per share of Common Stock on any date in question shall be deemed to be the Market Price on the date selected by the Company commencing on or after the latest (the “Commencement Date”) of (A) the date 20 Stock Exchange
Business Days before the date in question, (B) the date of commencement of the tender or exchange offer requiring such computation, and (C) the date of the last amendment, if any, of such tender or exchange offer involving a change in the maximum
number of shares for which tenders are sought or a change in the consideration offered, and ending not later than the date of the Expiration Time of such tender or exchange offer (or, if such Expiration Time occurs before the close of trading on a
Stock Exchange Business Day, not later than the Stock Exchange Business Day immediately preceding the date of such Expiration Time); provided, however, that if the “ex” date for any Other Event (other than the tender or exchange
offer requiring such computation) occurs on or after the Commencement Date and on or prior to the date of the Expiration Time for the tender or exchange offer requiring such computation, the closing price for each Stock Exchange Business Day prior
to the “ex” date for such Other Event shall be adjusted by multiplying such closing price by the same fraction by which the Conversion Price is so required to be adjusted as a result of such other event. For purposes of this paragraph, the
term “ex” date, (A) when used with respect to any issuance or distribution, means the first date on which the Common Stock trades regular way on the relevant exchange or in the relevant market from which the closing price was obtained
without the right to receive such issuance or distribution, (B) when used with respect to any subdivision or combination of shares of Common Stock, means the first date on which the Common Stock trades regular way on such exchange, or in such market
after the time at which such subdivision or combination becomes effective, and (C) when used with respect to any tender or exchange offer means the first date on which the Common Stock trades regular way on such exchange or in such market after the
Expiration Time of such tender or exchange offer. 
  
 (viii) Further Reductions for Federal Income Tax. The Company may make such reductions in the Conversion Price, in addition to those required by Conditions 6(C) (i), (ii), (iii), (iv), (v), and (vi), as it considers to be advisable
in order that any event treated for Federal income tax purposes as a dividend of stock or stock rights shall not be taxable to the recipients. 
  
 (ix) Adjustments to be Carried Forward. No adjustment in the Conversion Price shall be required unless such adjustment would
require an increase or decrease of at least five percent (5%) in the Conversion Price; provided, however, that any adjustments which by reason of this paragraph (ix) are not required to be made shall be carried forward and taken into account
in any subsequent adjustment. 
  
 (x)
Notice of Adjustments of Conversion Price 
  
 Whenever the Conversion Price is adjusted as herein provided the Company shall compute the adjusted Conversion Price in accordance with Section Condition 6(C) and shall prepare a certificate signed by the chief financial officer of the
Company setting forth the adjusted Conversion Price and showing in reasonable detail the facts upon which such adjustment is based, and such certificate shall forthwith be delivered to the Paying Agent and the Conversion Agent, and the Company shall
cause notice thereof to be published in accordance with Condition 15 at least ten (10) Business Days in advance of the effective date of such adjustment. 
  
 (D) Mandatory Conversion 
  
 (i) Each Noteholder acknowledges and agrees that provided the Shares into which the Notes would be converted are Freely Tradeable and
listed on a Stock Exchange, the Company may, at its own cost (save those expenses or taxes referred to in Condition 6(D)(iii)), at any time from the Effective Date, elect to exercise the Conversion Right on behalf of each and every Noteholder in
respect of all of the Notes Outstanding at the Conversion Price applicable as of the date fixed by the Company for such conversion (the “Mandatory Conversion Date”), provided that the average of the Market Price of the Shares over any 20
consecutive Stock Exchange Business Day period following the Effective Date, is equal to or greater than one hundred twenty-five percent (125%) of the Conversion Price. The Company will give notice in the manner set out in Condition 15 that the
criteria for Mandatory Conversion under this Condition 6(D) has been met within 30 days of having met such criteria. The form of Company Conversion Notice is attached hereto as Exhibit B. 
  

 16 

 (ii) At least 45 calendar days prior to the Mandatory Conversion Date, the Company shall
cause written notice of the Mandatory Conversion Date to be given to the Paying and Conversion Agent. Not less than 30 and not more than 60 calendar days prior to the Mandatory Conversion Date, the Company shall cause written notice of the Mandatory
Conversion Date to be given to the Paying Agent, the Conversion Agent and the Noteholders (in accordance with Condition 15). Following such notice, each of the Noteholders will be required on or before the Mandatory Conversion Date to deliver or
procure delivery of its Notes with all unmatured Coupons relating to such Notes together with a duly completed Conversion Notice to the specified office of the Conversion Agent, during its usual business hours for such purposes and perform together
with the Company, the obligations applicable to it on conversion specified in this Condition 6. Failure to deliver the Conversion Notice shall not affect the conversion of such Notes pursuant to the terms of this Condition 6(D). 
  
 (iii) If any Noteholder with respect to whose Notes
Mandatory Conversion (pursuant to this Condition 6) is to take place shall fail to perform its obligations specified in this Condition 6 or shall have a registered address in any territory where, in the absence of any registration statement or other
special formalities or legal requirements, the issue, allotment, transfer or delivery of the Shares arising on Mandatory Conversion in the reasonable opinion of the Company, is or could be unlawful or impracticable, subject to applicable law,
Company shall make arrangements for the sale of such Shares to a third party at the best consideration reasonably obtainable by the Company and arrange for the Paying Agent to pay to such Noteholder the consideration received by it in respect of
such Shares (after any deduction required to reimburse any reasonable and proper expenses incurred in arranging any such sale or any taxes payable in connection therewith arising solely as a result of the Noteholder’s failure to perform its
obligations under this Condition 6(D)). 
  
 (iv)
From and after the Mandatory Conversion Date and upon compliance by the Company of its obligations hereunder with respect to such conversion, the Notes shall cease to constitute Indebtedness of the Company and shall thereafter be only deemed to
represent the right to receive Shares. 
  
 (E) Notice of
Certain Corporate Action 
  
 In case of the occurrence of one
or more of the events that are listed herein, the Company shall cause a notice to be mailed to the Paying Agent and the Conversion Agent and to be published in the manner provided under Condition 15 hereof within ten (10) Business Days after the
date on which notice is sent to the holders of the Company’s Common Stock. Such events are: (i) the Company shall declare a dividend (or any other distribution) on its Common Stock payable (1) otherwise than exclusively in cash, or (2)
exclusively in cash in an amount that would require a Conversion Price adjustment pursuant to Condition 6(C)(iii); or (ii) the Company shall authorize the granting to the holders of its Common Stock of rights, warrants or options to subscribe for or
purchase any shares of capital stock of any class or of any other rights (excluding employee stock options); or (iii) of any reclassification of the Common Stock of the Company (other than a subdivision or combination of its outstanding shares of
Common Stock), or of any consolidation or merger to which the Company is a party and for which approval of any stockholders of the Company is required, or of the sale or transfer of all or substantially all of the assets of the Company; or (iv) of
the voluntary or involuntary dissolution, liquidation or winding up of the Company; or (v) the Company or any Subsidiary of the Company shall commence a tender or exchange offer for all or a portion of the Company’s outstanding shares of Common
Stock (or shall amend any such tender or exchange offer); The notice shall state (i) the date on which a record is to be taken for the purpose of such dividend, distribution or granting of rights, warrants or options, or, if a record is not to be
taken, the date as of which the holders of Common Stock of record to be entitled to such dividend, distribution, rights, warrants or options are to be determined, or (ii) the date on which such reclassification, consolidation, merger, sale,
transfer, dissolution, liquidation or winding up is expected to become effective, and the date as of which it is expected that holders of Common Stock of record shall be entitled to exchange their shares of Common Stock for securities, cash or other
Property deliverable upon such re-classification, consolidation, merger, sale, transfer, dissolution, liquidation or winding up, or (iii) the date on which such tender offer commenced, the date on which such tender offer is scheduled to expire
unless extended, the consideration offered and the other material terms thereof (or the material terms of any amendment thereto). 
  

 17 

 (F) Consolidation, Amalgamation or Merger 
  
 In the event that the Company shall be a party to any transaction, including
without limitation any (i) recapitalization or reclassification of the Common Stock (other than a change in par value, or from par value to no par value, or from no par value to par value, or as a result of a subdivision or combination of the Common
Stock), (ii) any consolidation of the Company with, or merger of the Company into, any other person, any merger of another person into the Company (other than a merger which does not result in a reclassification, conversion, exchange or cancellation
of all of the outstanding shares of Common Stock of the Company), (iii) any sale or transfer of all or substantially all of the assets of the Company, or (iv) any compulsory share exchange pursuant to which the Common Stock is converted into the
right to receive other securities, cash or other Property, the Company will forthwith notify the Noteholders of such event in accordance with Condition 15 and, then lawful provision shall be made as part of the terms of such transaction whereby the
Holder of each Note then Outstanding shall have the right (during the period in which such Note is convertible) to convert such Note into the class and amount of shares and other securities and property receivable upon such transaction by a holder
of such number of shares of Common Stock which would have been liable to be issued upon conversion of such Note immediately prior to the transaction. So far as legally possible, the Company shall cause the Person formed by such consolidation or
resulting from such merger or which acquired such assets or which acquired the Company’s Shares, as the case may be, to execute and deliver the Paying Agent on behalf of each of the Noteholders an amendment to these Terms and Conditions as
provided for under Condition 17. Such amendment shall provide for adjustments which, for events subsequent to the effective date of such amendment, shall be as nearly equivalent as may be practicable to the adjustments provided for in this
Condition. The above provisions of this Condition 6(F) shall similarly apply to successive transactions of the foregoing type. 
  
 (G) Conversion Prohibited Under Certain Circumstances 
  
 The Note shall not be convertible into Conversion Shares as provided in this Condition 6 nor may it be redeemed for Shares as provided in Condition
7(B)(iii) herein if the Stock Exchange on which the Shares are listed requires the approval by the stockholders of the Company of the issuance of the Shares which may be issued upon the exercise of the conversion rights contained in this Condition 6
or issued pursuant to Condition 7(B)(iii) and the stockholders fail to approve such issuances of the Shares at an annual meeting or special meeting held to approve such issuances. 
  
 7. Redemption and Purchase 
  
 (A) Unless previously redeemed, converted or purchased and canceled as provided herein, the Company will redeem the Notes at their principal amount on
June 30, 2009. 
  
 (B) (i) If as a result of any change in, or
amendment to, the laws or regulations of the U.S. or any political sub-division of, or any authority in, or of, the U.S. having power to tax, or any change in the application or official interpretation of such laws or regulations, which change or
amendment becomes effective after June 1, 2004, the Company has or will become obliged to pay additional amounts as provided or referred to in Condition 8 (and such amendment or change has been evidenced by the delivery by the Company to the Paying
Agent (who shall, in the absence of manifest error, accept such certificate and opinion as sufficient evidence thereof) of (x) a certificate signed by two officers of the Company on behalf of the Company stating that such amendment or change has
occurred (irrespective of whether such amendment or change is then effective), describing the facts leading thereto and stating that such obligation cannot be avoided by the Company taking reasonable measures available to it and (y) an opinion of
independent legal advisers of recognized standing to the effect that such amendment or change has occurred (irrespective of whether such amendment or change is then effective), the Company may at its option, having given not less than 30 nor more
than 60 calendar days’ notice to the Noteholders in accordance with Condition 15 (which notice shall be irrevocable), redeem all the Notes but not some only, at their principal amount together with interest (if any) accrued to (but excluding)
the Redemption Date, provided that no notice of redemption shall be given earlier than 90 calendar days before the earliest date on which the Company would be required to pay such additional amounts were a payment in respect of the Notes then due.

  

 18 

 (ii) The Company may, at its option and after having given not less than 30 nor more than
60 calendar days’ notice to the Noteholders in accordance with Condition 15 (which notice shall be irrevocable), redeem the Notes for cash, in whole or in part, at their principal amount together with interest (if any) accrued to (but
excluding) the Redemption Date. If the Company elects to redeem less than all the Notes, the Company will select which Notes to redeem by lot, random, or such other method as it shall deem fair and appropriate. Upon expiry of any such notice period
as is referred to in this Condition 7(B) (and subject as provided above), the Company shall be bound to redeem the Notes at their principal amount, together with interest accrued to but excluding the Redemption Date. 
  
 (iii) Investors may be redeemed at Maturity either (i) in
cash, at par, plus accrued but unpaid interest; or (ii) in Freely Tradable Shares. If the Company elects to redeem the Notes for Shares, each Note will be redeemed for the number of shares of Common Stock equal to 110% of the sum of the face value
of the Note plus interest accrued and unpaid thereon divided by the average of the Market Price of the Shares over the 20 Stock Exchange Business Day period immediately preceding the date of notice of such redemption. 
  
 (C) Subject to applicable law, the Company or any of its Subsidiaries may at
any time purchase Notes together with unmatured Coupons in any manner and at any price in the open market or by private treaty. If purchases are made by tender, tenders must be available to all Noteholders alike. Notes purchased by the Company or
any of its Subsidiaries will forthwith be surrendered for cancellation and shall no longer be deemed Outstanding. 
  
 (D) All Notes which are redeemed by the Company will forthwith be canceled (together with all related unmatured Coupons attached to or surrendered with
the Notes) and may not be reissued or resold. 
  
 8. Taxation 

 
 All payments in respect of the Notes by the Company shall be made without
withholding or deduction for, or on account of, any present or future taxes, duties, assessments or governmental charges of whatever nature (“Taxes”) imposed or levied by or on behalf of the U.S. or any political sub-division of, or any
authority in, or of, the U.S. having power to tax, unless the withholding or deduction of the Taxes is required by law. In that event, the Company will pay such additional amounts as may be necessary in order that the net amounts received by the
Noteholders and Couponholders after the withholding or deduction shall equal the respective amounts which would have been receivable in respect of the Notes or, as the case may be, Coupons in the absence of the withholding or deduction; except that
no additional amounts shall be payable in relation to any payment in respect of any Note or Coupon: 
  
 (A) to, or to a third party on behalf of, a Holder who is liable for the Taxes in respect of the Note or Coupon by reason of such Holder having some
connection with the U.S. other than the mere holding of the Note or Coupon; and 
  
 (B) presented for payment more than 30 calendar days after the Relevant Date except to the extent that a Holder would have been entitled to additional amounts on presenting the same for payment on the last day of such
period of 30 calendar days; or 
  
 (C) to, or to a third party on
behalf of, a Holder who would not be liable or subject to the withholding or deduction by making a declaration of non-residence or other similar claim for exemption to the relevant tax authority. 
  
 Any reference in these Terms and Conditions to any amounts in respect of the
Notes shall be deemed also to refer to any additional amounts which may be payable under this Condition. 
  
 9. Additional Covenants 
  
 While any Conversion Right remains exercisable, the Company will, save with the approval of an Extraordinary Resolution: 
  

 19 

 (1) at all times keep available for issuance free from any preemptive rights out of its authorized but
unissued capital such number of Shares as would enable the Conversion Rights and all other rights of subscription and exchange for and conversion pursuant to Condition 6 into Shares to be satisfied in full; 
  
 (2) maintain a listing for all the issued Shares and all Shares to be issued
on the exercise of the Conversion Rights on a Stock Exchange, it being understood that if the Company is unable to obtain or maintain such listing of Shares and will forthwith give notice to the Noteholders in accordance with Condition 15 of the
listing, de-listing or quotation or lack of quotation of the Shares (as a class) by any such Stock Exchange; and 
  
 (3) not in any way modify the rights attaching to the Shares with respect to voting, dividends or liquidation. 
  
 10. Prescription 
  
 Notes and Coupons will become void unless presented for payment within periods of ten (10) years (in the case of principal)
and five (5) years (in the case of interest) from the Relevant Date in respect of the Notes or the Coupons, as the case may be, subject to the provisions of Condition 5. 
  
 11. Events of Default and Enforcement 
  
 (A) Event of Default 
  
 “Event of Default,” wherever used in these Terms and Conditions, means any one of the following events (whatever the reason for such Event of
Default, whether voluntary or involuntary or 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) which shall have occurred and is
continuing: 
  
 (1) if default is made for a
period of five (5) Business Days or more in the payment of interest or principal due in respect of the Notes or any of them; or 
  
 (2) if the Company fails to perform or observe any of its other obligations, covenants, conditions or provisions under the Notes or these
Terms and Conditions and such failure continues for the period of 30 calendar days (or such longer period as the Majority Holders may in their absolute discretion permit) next following the service by the one or more of the Holders on the Company of
notice requiring the same to be remedied; or 
  
 (3) if (i) any other Indebtedness of the Company becomes due and payable prior to its Stated Maturity by reason of an event of default (howsoever defined) or (ii) any such Indebtedness of the Company is not paid when due or, as the case may
be, within any applicable grace period or (iii) the Company fails to pay when due (or, as the case may be, within any applicable grace period) any amount payable by it under any present or future guarantee for, or indemnity in respect of, any
Indebtedness of any Person or (iv) any security given by the Company or any subsidiary for any Indebtedness of any Person or any guarantee or indemnity of Indebtedness of any Person by the Company becomes enforceable by reason of default in relation
thereto and steps are taken to enforce such security save in any such case where there is a bona fide dispute as to whether the relevant Indebtedness or any such guarantee or indemnity as aforesaid shall be due and payable (following any applicable
grace period); provided, however, that in each such case the Indebtedness exceeds in the aggregate U.S. $2,000,000 and in each such case such event continues unremedied for a period of 30 calendar days (or such longer period as the
Majority Holders may in their sole discretion consent to in writing upon receipt of written notice from the Company); or 
  
 (4) if the Company shall generally fail to pay its debts as such debts come due (except debts which the Company may contest in good faith
generally) or shall be declared or adjudicated by a competent court to be insolvent or bankrupt, shall consent to the entry of an order of relief against it in an involuntary bankruptcy case, shall 
  

 20 

 enter into any assignment or other similar arrangement for the benefit of its creditors or shall consent
to the appointment of a custodian (including, without limitation, a receiver, liquidator or Company); or 
  
 (5) if a receiver, administrative receiver, administrator or other similar official shall be appointed in relation to the Company or in
relation to the whole or a substantial part its undertaking or assets or a distress, execution or other process shall be levied or enforced upon or sued out against, or an encumbrancer shall take possession of, the whole or a substantial part of the
assets of any of them and in any of the foregoing cases is not paid out or discharged within 90 calendar days (or such longer period as the Majority Holders may in their absolute discretion consent to in writing upon receipt of written notice from
the Company); or 
  
 (6) if the Company
institutes proceedings to be adjudicated a voluntary bankrupt, or shall consent to the filing of a bankruptcy proceeding against it, or shall file a petition or answer or consent seeking organization under the laws of the Federal Bankruptcy Code or
any similar applicable U.S. federal, state or foreign law, or shall consent to the filing of any such petition, or shall consent to the appointment of a receiver or liquidator or trustee or assignee (or other similar official) in bankruptcy or
insolvency of it or its Property, or shall make an assignment for the benefit of creditors, or shall admit in writing its inability to pay its debts generally as they come due; or 
  
 (7) if a decree or order by a court having jurisdiction in the premises shall have been entered adjudging
the Company a bankrupt or insolvent, or approving as properly filed a petition seeking the reorganization of the Company under the Federal Bankruptcy Code or any other similar applicable U.S. federal, state or foreign law, and such decree or order
shall have continued undischarged or unstayed for a period of 90 calendar days; or a decree or order of a court having jurisdiction in the premises for the appointment of a receiver or liquidator or trustee or assignee (or other similar official) in
bankruptcy or insolvency of the Company or of all or substantially all of its Property, or for the winding up or liquidation of its affairs, shall have been entered, and such decree or order shall have continued undischarged and unstayed for a
period of 90 calendar days; or 
  
 (8) if a
warranty, representation, or other statement made by or on behalf of the Company contained herein or any certificate or other agreement furnished in compliance herewith is false in any material respect when made and such falsity continues for a
period of 30 calendar days (or such longer period as the Majority Holders may in their absolute discretion permit) next following the service by one or more of the Holders on the Company of notice requiring the same to be remedied; or 
  
 (9) if there is any final judgment or judgments for the
payment of money exceeding in the aggregate U.S. $2,000,000 outstanding against the Company which has been outstanding for more than 60 calendar days from the date of its entry and shall not have otherwise been discharged in full or stayed by
appeal, bond or otherwise. 
  
 (B) Acceleration of Maturity;
Rescission and Annulment 
  
 If an Event of Default (other
than an Event of Default specified in Condition 11(A)(6) or 11(A)(7)) occurs and is continuing, then and in every such case the Majority Holders may declare the principal amount of all the Notes and accrued and unpaid interest thereon to be due and
payable immediately, by a notice in writing to the Company, and upon any such declaration such principal amount and accrued and unpaid interest shall become immediately due and payable. 
  
 If an Event of Default specified in Condition 11(A)(6) or Condition 11(A)(7) occurs and is continuing, then the principal
amount of all the Notes and all accrued and unpaid interest thereon shall ipso facto become and be immediately due and payable without any declaration or other act on the part of any Noteholder. 
  
 At any time after a declaration of acceleration has been made and before a
judgment or decree for payment of the money due has been obtained by the Majority Holders as hereinafter in this Condition provided, the Majority Holders, with written notice to the Company, may rescind and annul such declaration and its
consequences if 
  

 21 

 (1) the Company has paid or deposited in a manner satisfactory to such Holders a sum
sufficient to pay 
  
 (i) all overdue interest on
all Outstanding Notes, 
  
 (ii) all unpaid
principal of any Outstanding Notes which has become due otherwise than by such declaration of acceleration, and interest on such unpaid principal at the rate prescribed therefor in the Notes, 
  
 (iii) to the extent that payment of such interest is legally
enforceable, interest on overdue interest at the rate prescribed therefor in the Notes, and 
  
 (iv) all reasonable sums paid or advanced by the such Holders hereunder; and 
  
 (2) all Events of Default, other than the non-payment of
amounts of principal of or interest on Notes which have become due solely by such declaration of acceleration, have been cured or waived as provided in Condition 11(K) 
  
 No such rescission shall affect any subsequent default or impair any right consequent thereon. 
  
 (C) Collection of Indebtedness and Suits for Enforcement by the Majority
Holders 
  
 The Company covenants that if 
  
 (1) default is made in the payment of any installment of
interest on any Note when such interest becomes due and payable and such default continues for a period of five (5) Business Days, or 
  
 (2) default is made in the payment of the principal of any Note at the Maturity thereof and such default continues for a period of five
(5) Business Days, 
  
 the Company will, upon demand of the Majority Holders, pay
to the Holders of the Notes, the whole amount then due and payable on the Notes for principal and interest, and interest on any overdue principal and, to the extent that payment of such interest shall be legally enforceable, upon any overdue
installment of interest, at the rate prescribed therefor in the Notes, and, in addition thereto, such further amount as shall be sufficient to cover the costs and expenses of collection, including the reasonable expenses, disbursements and advances
of the Holders, their agents and counsel, and the reasonable compensation of such agents and counsel. 
  
 If the Company fails to pay such amounts forthwith upon such demand, the Majority Holders in their name, 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. 
  
 If an Event of Default occurs and is continuing, the Majority Holders may in their discretion proceed to protect and enforce their rights and the rights
of the other Noteholders by such appropriate judicial proceedings as such Holders shall deem most effectual to protect and enforce any such rights, whether for the specific enforcement of any covenant or agreement in these terms and conditions or to
enforce any other proper remedy. 
  
 (D) Majority Holders May
File Proofs of Claim 
  
 In case of the pendency of any
receivership, insolvency, liquidation, bankruptcy, reorganization, arrangement, adjustment, composition or other judicial proceeding relative to the Company or any other obligor upon the Notes or the Property of the Company or of such other obligor
or their creditors, the Majority Holders (irrespective of whether the 
  

 22 

 principal of the Notes shall then be due and payable as therein expressed or by declaration or otherwise and irrespective
of whether the Majority Holders shall have made any demand on the Company for the payment of overdue principal or interest) shall be entitled and empowered, by intervention in such proceeding or otherwise, 
  
 (1) to file and prove a claim for the whole amount of
principal and interest owing and unpaid in respect of the Notes and to file such other papers or documents as may be necessary or advisable in order to have the claims of the Holders (including any claim for the reasonable expenses, disbursements
and advances of such Holders, their agents and counsel) and of the other Noteholders allowed in such judicial proceeding, and the reasonable compensation of such agents and counsel, and 
  
 (2) to collect and receive any moneys or other Property payable or deliverable on any such claims and to
distribute the same; 
  
 and any custodian, receiver, assignee, trustee,
liquidator, sequestrator or similar official in any such judicial proceeding is hereby authorized by each Noteholder to make such payments to the Majority Holders due them for the reasonable expenses, disbursements and advances of such Holders,
their agents and counsel and the reasonable compensation of such agents and counsel, and to pay to the Paying Agent (where one is appointed) all such other sums due under the Notes. In the absence of such appointment, any such sums shall be paid for
the rateable benefit of all the Noteholders. 
  
 Nothing herein
contained shall be deemed to authorize the Majority Holders, except as permitted by law and these Terms and Conditions, to authorize or consent to or accept or adopt on behalf of any Noteholder any plan of reorganization, arrangement, adjustment or
composition affecting the Notes or the rights of any Noteholder thereof, or to authorize the such Holder to vote in respect of the claim of any Noteholder in any such proceeding, except to the extent permitted by law. 
  
 (E) Majority Holders May Enforce Claims Without Possession of Notes

  
 All rights of action and claims under these Terms and
Conditions may be prosecuted and enforced by the Majority Holders without the possession of any of the Notes or the production thereof in any proceeding relating thereto, and any such proceeding instituted by the Majority Holders shall be brought in
their own name and any recovery of judgment shall, after provision for the payment of the reasonable compensation, expenses, disbursements and advances of the Majority Holders, their agents and counsel, be paid to the Paying Agent (where one is
appointed) for the rateable benefit of all the Noteholders in respect of which such judgment has been recovered. 
  
 (F) Application of Money Collected 
  
 Any money collected by the Majority Holder pursuant to this Condition shall be applied in the following order in case of the distribution of such money on
account of principal or interest, upon presentation of the Notes and the notation thereon of the payment if only partially paid and upon surrender thereof if fully paid: 
  
 FIRST: To the payment of the amounts then due and unpaid for principal of and interest on the Notes in
respect of which or for the benefit of which such money has been collected, ratably, without preference or priority of any kind, according to the amounts due and payable on such Notes for principal and interest, respectively; and 
  
 SECOND: The balance, if any, to the Person or Persons
entitled thereto. 
  
 (G) Unconditional Right of Holders to
Receive Principal and Interest 
  
 Notwithstanding any other
provision in these Terms and Conditions, the Holder of any Note or of any Coupon, as the case may be, shall have the right, which is absolute and unconditional, to receive payment, as provided herein and in such Note of the principal of and interest
on, such Note on the respective Stated Maturity or expressed in such Note (or, in the case of redemption, on the Redemption Date) or Coupon and to institute suit for the enforcement of any such 
  

 23 

 payment, and such rights shall not be impaired without the consent of such Holder; provided, that all monies paid
by the Company to the Paying Agent for the payment of principal or interest on any Note which remain unclaimed at the end of two (2) years after the Stated Maturity or Redemption Date of such Note will be repaid to the Company and the Holder of any
Note or Coupon shall thereafter have only the rights of a creditor of the Company or such rights as may be otherwise provided by applicable law. 
  
 (H) Restoration of Rights and Remedies 
  
 If the Majority Holders or any Noteholder has instituted any proceeding to enforce any right or remedy under these Terms and Conditions and such
proceeding has been discontinued or abandoned for any reason, or has been determined adversely to the Majority Holders or to such Noteholder, then and in every such case, subject to any determination in such proceeding, the Company, the Majority
Holders and the Noteholders shall be restored severally and respectively to their former positions hereunder and thereafter all rights and remedies of the Majority Holders and the Noteholders shall continue as though no such proceeding had been
instituted. 
  
 (I) Rights and Remedies Cumulative

  
 Except as otherwise provided with respect to the replacement
or payment of mutilated, destroyed, lost or stolen Notes as provided herein, no right or remedy herein conferred upon or reserved to the Noteholders is intended to be exclusive of any other right or remedy, and every right and remedy shall, to the
extent permitted by law, be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder, or otherwise, shall
not prevent the concurrent assertion or employment of any other appropriate right or remedy. 
  
 (J) Delay or Omission Not Waiver 
  
 No delay or omission of the Majority Holders or Holder of any Note to exercise any right or remedy accruing upon any Event of Default shall impair any such right or remedy or constitute a waiver of any such Event of Default or an
acquiescence therein. Every right and remedy given by this Article or by law to the Noteholders may be exercised from time to time, and as often as may be deemed expedient, by the Noteholders. 
  
 (K) Waiver of Past Defaults 
  
 Subject to Condition 11(B), the Majority Holders may on behalf of the Holders
of all the Notes waive any past default hereunder and its consequences, except a default 
  
 (1) in respect of the payment of the principal of or interest on any Note, or 
  
 (2) in respect of a covenant or provision hereof which under
Condition 17 cannot be modified or amended without the consent of the Holder of each Outstanding Note affected. 
  
 Upon any such waiver, such default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured, for every purpose
of these Terms and Conditions; but no such waiver shall extend to any subsequent or other default or Event of Default or impair any right consequent thereon. 
  
 (L) Waiver of Stay or Extension Laws 
  
 The Company covenants (to the extent that it may lawfully do so) that it will not at any time insist upon, or plead, or in any manner whatsoever claim or
take the benefit or advantage of, any stay or extension law wherever enacted, now or at any time hereafter in force, which may affect the covenants or the performance of these Terms and Conditions; and the Company (to the extent that it may lawfully
do so) hereby expressly waives all benefit or advantage of any such law. 
  

 24 

 (M) Requirements Regarding Agents 
  
 (1) At any time after an Event of Default has occurred and is continuing the Majority Holders shall notify in writing the
Company and the Paying Agent, and may by notice in writing to the Company and the Paying Agent: 
  
 (i) require the Paying Agent, until notified to the contrary by Majority Holders, to hold all Notes and Coupons and all moneys, documents
and records held by it in respect of Notes and Coupons to the order of the Holders; or 
  
 (ii) require the Paying Agent to deliver to the Holders on a pro rata basis all funds held by it for the benefit of the Holders, and to
deliver the documents and records held by it in respect of Notes and Coupons to the Holders, provided that such notice shall be deemed not to apply to any documents or records which the relevant Paying Agent is obliged to release by any law or
regulation; and 
  
 (iii) require the Company to
make all subsequent payments in respect of the Notes and Coupons to or to the order of the Holders and not to the Paying Agent. 
  
 (2) The Majority Holders shall notify the Paying Agent immediately upon the cure or waiver of an Event of Default. Upon receipt of such notice, the
provisions of this Condition 11(M) shall no longer apply. 
  
 (3)
Prior to taking any action under this Agreement at the direction of any Person with respect to the Notes, the Paying Agent shall be entitled to receive (and shall receive) indemnity or security satisfactory to it. 
  
 12. Liability Solely Corporate 
  
 No recourse shall be had for the payment of the principal of or interest on
any Notes or any part thereof, or for any claim based thereon or otherwise in respect thereof, or of the indebtedness represented thereby, or upon any obligation, covenant or agreement in these Terms and Conditions, against any incorporator, or
against any stockholder, officer or director, as such, past, present or future, of the Company, or of any predecessor or successor Person, either directly or through the Company or any such predecessor or successor Person, 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 agreed and understood that the Notes and these Terms and Conditions which are a part thereof are solely corporate obligations,
and that no personal liability whatsoever shall attach to, or be insured by, any such incorporator, stockholder, officer or director, as such, past, present or future, of the Company or of any predecessor or successor Person, either directly or
through the Company or any such predecessor or successor Person, because of the indebtedness hereby authorized or under or by reason of any of the obligations, covenants, promises or agreements contained in the Notes or the these Terms and
Conditions which constitute a part thereof or to be implied herefrom; and that any such personal liability is hereby expressly waived and released as a condition of, and as part of the consideration for the Offering pursuant to which the Notes were
issued; provided, however, that nothing herein contained shall be taken to prevent recourse to and the enforcement of the liability, if any, of any stockholder or subscriber to capital stock of the Company upon or in respect of shares of
capital stock not fully paid up. 
  
 13. Defeasance and Covenant Defeasance

  
 (A) Company’s Option to Effect Defeasance or
Covenant Defeasance 
  
 The Company may, at its option by
Board Resolution, at any time, with respect to the Notes, elect to have either Condition
 13(B) or Section 13(C) applied to all Outstanding Notes upon compliance with the conditions set forth below in this Condition, The Company shall promptly
give notice of such election to the Holders. 
  
 (B) Legal
Defeasance and Discharge 
  

 25 

 Upon the Company’s exercise under Condition 13(A) of the option applicable to this Condition 13(B),
the Company shall be deemed to have been discharged from its obligations with respect to all Outstanding Notes on the date the conditions set forth in Condition 13(D) are satisfied (hereinafter, “legal defeasance”). For this purpose, such
legal defeasance means that the Company shall be deemed to have paid and discharged the entire indebtedness represented by the Outstanding Notes, which shall thereafter be deemed to be “Outstanding” only for the purposes of Condition 13(E)
and the other Conditions of these Terms and Conditions referred to in (1) and (2) below, and to have satisfied all its obligations under such Notes, including the obligation to pay interest on the Notes, and these Terms and Conditions insofar as
such Notes are concerned (and the Holders, at the expense of the Company, shall execute proper instruments acknowledging the same), except for the following which shall survive until otherwise terminated or discharged hereunder: (1) the rights of
Holders of Outstanding Notes to receive, solely from the trust fund described in Condition
 13(D) and as more fully set forth in such Condition, payments in respect of the principal of and interest on such Notes when such payments are due, and
(B) the Company’s obligations with respect to the Notes under Conditions 1(D), 1(E), 1(H), 3(D) or 3(L). Subject to compliance with this Condition, the Company may exercise its option under this Condition 13(B) notwithstanding the prior
exercise of its option under Condition 13(C) with respect to the Notes. 
  
 (C) Covenant Defeasance 
  
 Upon the
Company’s exercise under Section Condition 13(A) of the option applicable to this Condition 13(C), the Company shall be released from its obligations under any covenant contained in Condition 3 (except Condition 3(D) with respect to the
Outstanding Notes on and after the date the conditions set forth in Section 13(D)) are satisfied (hereinafter, “covenant defeasance”), and the Notes shall thereafter be deemed not to be “Outstanding” for the purposes of any
request, demand, authorization, direction, declaration, notice, consent, waiver or Act of Noteholders (and the consequences of any thereof) in connection with such covenants, but shall continue to be deemed “Outstanding” for all other
purposes hereunder. For this purpose, such covenant defeasance means that, with respect to the Outstanding Notes, the Company may omit to comply with and shall have no liability in respect of any term, condition or limitation set forth in any such
covenant, whether directly or indirectly, by reason of any reference elsewhere herein to any such covenant or by reason of any reference in any such covenant to any other provision herein or in any other document and such omission to comply shall
not constitute a Default or an Event of Default under Condition 11(A)(4), but, except as specified above, the remainder of these and the Notes shall be unaffected thereby. 
  
 (D) Conditions to Legal Defeasance or Covenant Defeasance 
  
 The following shall be the conditions to application of either Condition
13(B) or Section 13 (C) to the Outstanding Notes: 
  
 (1) The Company shall irrevocably have deposited or caused to be deposited with the Paying Agent as trust funds in trust for the purpose of making the following payments, specifically pledged as security for, and dedicated solely to, the
benefit of the Holders of such Notes, (A) money in an amount, or (B) U.S. Government Obligations which through the scheduled payment of principal and interest in respect thereof in accordance with their terms will provide, not later than one day
before the due date of any payment, money in an amount, or (C) a combination thereof, sufficient, in the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Paying
Agent, to pay and discharge, and which shall be applied by the Paying Agent to pay and discharge, the principal of and interest on the Outstanding Notes on the Stated Maturity (or Redemption Date, if applicable) of such principal or installment of
interest; provided that the Paying Agent shall have been irrevocably instructed to apply such money or the proceeds of such U.S. Government Obligations to said payments with respect to the Notes; and provided further that, upon the
effectiveness of this Condition 13(D), the money or U.S. Government Obligations deposited shall not be subject to the rights of the Noteholders pursuant to the provisions of this Condition. Before or after such a deposit, the Company may give to the
Paying Agent a notice of its election to redeem all of the Outstanding Notes at a future date in accordance with Condition 7, which notice shall be irrevocable. Such irrevocable redemption notice, if given, shall be given effect in applying the
foregoing. 
  

 26 

 (2) No Default or Event of Default with respect to the Notes shall have occurred and be
continuing on the date of such deposit or, insofar as paragraphs (6) and (7) of Condition 11(A) hereof are concerned, at any time during the period ending on the 91st day after the date of such deposit (it being understood that this condition shall
not be deemed satisfied until the expiration of such period). 
  
 (3) No event or condition shall exist that pursuant to the provisions of Condition 13(B) or 13(C) would prevent the Company from making payments of the principal of or interest on the Notes on the date of such deposit
or at any time during the period ending on the 91st day after the date of such deposit (it being understood that this condition shall not be deemed satisfied until the expiration of such period). 
  
 (4) Such legal defeasance or covenant defeasance shall not
result in a breach or violation of, or constitute a default under any material agreement or material instrument to which the Company is a party or by which it is bound. 
  
 (5) In the case of an election under Condition 13(B), the Company shall have delivered to the Paying Agent
an Opinion of Counsel stating that the Holders of the Outstanding Notes will not recognize income, gain or loss for U.S. federal income tax purposes as a result of such defeasance and will be subject to federal income tax on the same amounts, in the
same manner and at the same times as would have been the case if such defeasance had not occurred. 
  
 (f) The Company shall have delivered to the Paying Agent an Officers’ Certificate and an Opinion of Counsel, each stating that all
conditions precedent provided for relating to either the legal defeasance under Section 13(B) or the covenant defeasance under Section 13(C) (as the case may be) have been complied with. 
  
 (E) Deposited Money and U.S. Government Obligations to Be Held in Trust; Other Miscellaneous Provisions 

 
 Subject to the provisions of the disposition of unclaimed moneys contained
herein, all money and U.S. Government Obligations (including the proceeds thereof) deposited with the Paying Agent pursuant to Condition 13(D) in respect of the Outstanding Notes shall be held in trust and applied by the Paying Agent, in accordance
with the provisions of these terms and conditions, to the payment, either directly or through the Paying Agent (including the Company acting as its own Paying Agent) to the Holders of the Notes of all sums due and to become due thereon in respect of
principal and interest, but such money and U.S. Government Obligations need not be segregated from other funds except to the extent required by law. 
  
 (F) Reinstatement 
  
 If the Paying Agent is unable to apply any money or U.S. Government Obligations in accordance with Condition 13(E) by reason of any order or judgment of
any court or governmental authority enjoining, restraining or otherwise prohibiting such application, then the Company’s obligations under these Terms and Condition shall be revived and reinstated as though no deposit had occurred pursuant to
Section Condition 13(B) or 13(C), as the case may be, until such time as the Paying Agent is permitted to apply all such money or U.S. Government Obligations in accordance with Condition 13(E); provided, however, that no action taken in good
faith by the Company after a deposit of money or U.S. Government Obligations or both pursuant to Condition 13(E) and prior to the revival and reinstatement of obligations under these Terms and Conditions pursuant to this Condition 13(F) shall
constitute the basis for the assertion of an Event of Default pursuant to Condition 11; and provided, further, that if the Company makes any payment of principal of or interest on any Note following the reinstatement of its obligations, the
Company shall be subrogated to the rights of the Holders of such Notes to receive such payment from the money or U.S. Government Obligations held by the Paying Agent. 
  

 27 

 14. Replacement of Notes and Coupons 
  
 As provided in Conditions 1(H), should any Note or Coupon be lost, stolen, mutilated, defaced or destroyed, it may be
replaced at the specified office of the Paying Agent upon payment by the claimant of the expenses incurred in connection with the replacement and on such terms as to evidence indemnity and security as the Company may reasonably require. Mutilated or
defaced Notes or Coupons must be surrendered before replacements will be issued. 
  
 15. Notices 
  
 (A) Notices to all the
Noteholders will be valid if published in one Authorized Newspaper (unless another form of notice is permitted by these Terms and Conditions) with a copy provided to RP&C International Limited. Any notice shall be deemed to have been given on
the date of publication or, if so published more than once, on the date of the first publication. If publication as provided above is not practicable, notice will be given in such other manner, and shall be deemed to have been given on such date, as
the Company may approve. 
  
 (B) Couponholders will be deemed for
all purposes to have notice of the contents of any notice given to the Noteholders in accordance with this Condition. 
  
 (C) Any request, demand, authorization, direction, declaration, notice, consent, waiver, Extraordinary Resolution or Act of Noteholders or other
document provided or pertained by these Terms and Conditions (herein collectively called “Notice”) to be made upon, given or furnished to, or filed with the Company by any Noteholder shall be sufficient for every purpose hereunder (unless
otherwise herein expressly provided) if made, given, furnished or filed in writing to or with the Company addressed to it at the address of its principal office which shall initially be: Harken Energy Corporation, 180 State Street, Suite 200,
Southlake, Texas 76092, Attention: Mikel D. Faulkner, Chief Executive Officer Tel. (817) 424 2424, Fax, (817) 410 1884; with a copy to Elmer Johnston, Secretary: Tel. (817) 424 2424, Fax. (817) 488 0971. 
  
 16. Acts of Noteholders, Meetings of Noteholders 
  
 (A) Any Extraordinary Resolution, request, demand, authorization, direction,
declaration, notice, consent, waiver or other action provided by these Terms and Conditions to be given or taken by Noteholders may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such Noteholders in
person or by agents duly appointed in writing; and, except as herein otherwise expressly provided, such action shall become effective when such instrument or instruments are delivered to the Company. Such instrument or instruments (and the action
embodied therein and evidenced thereby) are herein sometimes referred to as the “Act” of the Noteholders signing such instrument or instruments. Proof of execution of any such instrument or of a writing appointing any such agent shall be
sufficient for any purpose of these Terms and Conditions and conclusive in favor of the Company, if made in the manner provided in this Condition 
  
 (B) The fact and date of the execution by any Person of any such instrument or writing may be proved by the affidavit of a witness of such execution or by
a certificate of a notary public or other officer authorized by law to take acknowledgments of deeds, certifying that the individual signing such instrument or writing acknowledged to such witness, notary public or other such officer the execution
thereof. Where such execution is by a signer acting in a capacity other than such signer’s individual capacity, such certificate or affidavit shall also constitute sufficient proof of authority. The fact and date of the execution of any such
instrument or writing, or the authority of the Person executing the same, may also be proved in any other manner which the Company deems sufficient. 
  
 (C) Any Extraordinary Resolution, request, demand, authorization, direction, notice, consent, waiver or other Act of the Holders of any Note shall bind
every future Holder of the same Note and the Holder of every Note issued upon conversion or redemption thereof or in exchange therefor or in lieu thereof in respect of anything done, omitted or 
  

 28 

 suffered to be done by the Company or any Paying or Conversion Agent in reliance thereon, whether or not notation of such
action is made upon such Note. 
  
 (D) The Noteholders may convene
a meeting at any time and from time to time to consider any matter affecting the Holders of the Notes, including the modification of the Terms and Conditions and to make, give or take any request, demand, authorization, direction, notice, consent,
waiver or other action provided by this these Terms and Conditions to be made, given or taken by Holders of the Notes. 
  
 (E) Notice of every meeting of the Holders of the Notes, setting forth the time and the place of such meeting and in general terms the action proposed to
be taken at such meeting, shall be given in the manner provided in Condition 15, not less than 21 nor more than 180 days prior to the date fixed for the meeting. 
  
 (F) To be entitled to vote at any meeting of Holders of the Notes, a Person shall be (i) a Holder of one or more Outstanding
Notes, or (ii) a Person appointed by an instrument in writing as proxy for a Holder or Holders of one or more Outstanding Notes by such Holder or Holders. The only Persons who shall be entitled to be present or to speak at any meeting of Noteholders
shall be the Persons entitled to vote at such meeting and their counsel, any representatives of the Company, and their respective counsel. 
  
 (G) The quorum at any meeting for passing any Extraordinary Resolution will be one or more Persons present holding or representing 50% or more in
principal amount of the Outstanding Notes as of the date of the meeting, or at any adjourned such meeting one or more Persons present whatever the principal amount of the Notes held or represented by such Person and the vote required for passing an
Extraordinary Resolution at such meeting will be not less than a majority of the principal amount of the Outstanding Notes and represented at such meeting or adjournment thereof; provided, that at any meeting, the business of which includes the
modification of the provisions of the Terms and Conditions and the provisions of these Terms and Conditions, the necessary quorum and vote required for passing an Extraordinary Resolution will be one or more Persons present holding or representing
not less than a majority, or at any adjourned such meeting not less than one-third, of the principal amount of the Outstanding Notes. An Extraordinary Resolution passed at any meeting of the Holders of the Notes will be binding on all Holders of the
Notes, whether or not such Noteholders are present at the meeting, and on the Holders of all Coupons. 
  
 17. Amendments to Terms and Conditions 
  
 (A) Amendments with Consent of Noteholders 
  
 With the consent of the Holders of a majority in principal amount of the Notes Outstanding, the Company, when authorized by a Board Resolution, may amend these Terms and Conditions for the purpose of adding any
provisions to or changing in any manner or eliminating any of the provisions hereof or of modifying in any manner the rights of the Noteholders hereunder; provided, however, that no such amendment shall, without the consent of the Holder of each
Outstanding Note affected thereby: 
  
 (1) change
the Stated Maturity of the principal of, or any installment of principal of or interest on, any Note, or reduce the principal amount thereof or the rate of interest thereon, or change the coin or currency in which any Note or the interest thereon is
payable, or impair the right to institute suit for the enforcement of any such payment after the Stated Maturity thereof (or, in the case of redemption, on or after the Redemption Date), or 
  
 (2) reduce the percentage in principal amount of the
Outstanding Notes, the consent of whose Holders is required for any amendment of these terms and conditions, or the consent of whose Holders is required for any waiver of compliance with certain provisions of these Terms and Conditions or certain
defaults hereunder and their consequences provided for herein, or 
  

 29 

 (3) modify any of the provisions of Condition 11(K), except to increase any such
percentage or to provide that certain other provisions of these Terms and Conditions be modified or waived without the consent of the Holder of each Outstanding Note affected thereby, 
  
 (4) modify any of the provisions of these Terms and Conditions relating to the subordination of the Notes in
a manner adverse to the Holders thereof, or 
  
 (5) modify any of the provisions of these Terms and Conditions relating to Conversion Rights or redemption rights. 
  
 It shall not be necessary for any Act of Noteholders under this Section to approve the particular form of any proposed amendment to the Terms and
Conditions, but it shall be sufficient if such Act shall approve the substance thereof. 
  
 (B) Effect of Amendments 
  
 Upon the entering into of an amendment of these Terms and Conditions pursuant to the terms hereof, these Terms and Conditions shall be modified in accordance therewith, and amendment shall form a part of these Terms and Conditions for all
purposes; and every Holder of Notes theretofore or thereafter delivered hereunder shall be bound thereby. 
  
 18. Governing Law 
  
 The
Notes, including these Terms and Conditions, the Coupons, and the Agency Agreement are governed by, and will be construed in accordance with, the laws of the State of New York. 
  
 19. Definitions of Certain Terms 
  
 “Act,” when used with respect to any Noteholder, has the meaning specified in Condition 16. 
  
 “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 and the terms “controlling” and “controlled” have meanings correlative to the foregoing. 
  
 “Authenticating Agent” means The Bank of New York 
  
 “Authorized Denomination” means U.S. $1,000. 
  
 “Authorized Newspaper” means The Financial Times (European Edition)
of London, England. If such newspaper shall cease to be published, the Company shall substitute for it another newspaper in Europe, customarily published at least once a day for at least five (5) days in each calendar week, of general circulation.
If, because of temporary suspension of publication or general circulation of such newspaper or for any other reason, it is impossible or, in the opinion of the Company, impracticable to make any publication of any notice required by these Conditions
in the manner herein provided, such publication or other notice in lieu thereof which is made by the Company in the exercise of its reasonable discretion shall constitute a sufficient publication of such notice. 
  
 “Board of Directors” means either the board of directors of the
Company or any duly authorized committee of that board. 
  
 “Business Day” means each Monday, Tuesday, Wednesday, Thursday and Friday which is a day on which banking institutions in the City of New York, New York, and London, England are not authorized or obliged by law, regulation or
executive order to close. 
  

 30 

 “Capitalized Lease Obligation” means the amount of the liability under any capital lease that,
in accordance with GAAP, is required to be capitalized and reflected as a liability on the balance sheet of the relevant Person. 
  
 “Clearstream” means Clearstream, société anonyme. 
  
 “Commission” means the Securities and Exchange Commission, as from time to time constituted or, if at any time
after the Issue Date such Commission is not existing, then the body performing similar duties at such time. 
  
 “Common Depository” means the common depository appointed by Morgan Guaranty Trust Company of New York, Brussels office, as operator of the
Euroclear System, and Clearstream, société anonyme, which shall initially be The Bank of New York, including the nominees and successors of any Common Depository. 
  
 “Common Stock” means, with respect to any Person, any and all shares, interests, participation and other
equivalents (however designated, whether voting or non-voting) of such Person’s common stock, whether now outstanding or issued after the Issue Date, and includes, without limitation, all series and classes of such common stock. 
  
 “Company” means Harken Energy Corporation, until a successor Person
shall have become such pursuant to the applicable provisions of these Terms and Conditions, and thereafter “Company” shall mean such successor Person. 
  

“Conversion Agent” means any Person (including the Company acting as Conversion Agent) authorized by the Company to effect conversions of the
Notes on behalf of the Company. Pursuant to the terms hereof, the Company has initially appointed The Bank of New York to act as the Conversion Agent. 
  
 “Conversion Date” means the Business Day during the Conversion Period on which the Conversion Right is exercised by delivery to the Conversion
Agent of the Note surrendered for conversion and the completed notice of a Noteholder’s intention to exercise its Conversion Right (as set forth in Exhibit A hereto) with respect to any Note. 
  
 “Conversion Period” means, with respect to any Note, the period
which begins after the earlier to occur of (I) the close of the Effective Date of a Registration Statement filed by the Company with the Commission with respect to the Shares or (II) the date such Shares may be sold pursuant to the exemption from
registration under the Securities Act provided by Rule 144 or other exemption from registration under the Securities Act, and ends upon the earliest to occur of (A) the second Business Day prior to the later of June 30, 2009, or the date on which
all principal and interest on the Note is repaid in full, (B) if such Notes shall have been called for redemption pursuant to Condition 7 of these Terms and Conditions, the close of the second Business Day prior to the Redemption Date, or (C) the
effective date of a Mandatory Conversion. 
  
 “Conversion
Price” means, in respect of a Conversion Right, initially U.S. $0.52. 
  
 “Conversion Right” means the right of a Holder of any Note to convert such Note into Conversion Shares. 
  
 “Conversion Shares” means the Shares into which the Notes are convertible. 
  
 “Corporation” includes corporations, limited liability companies, limited and general partnerships, associations,
joint-stock companies and business trusts. 
  
 “Coupon”
means bearer interest Coupons relating to the definitive Notes in bearer form and any replacement Coupons issued therefore 
  
 “Couponholder” means a Person who is the bearer of any Coupon. 
  
 “Default Rate” means, with respect to the Notes, ten percent (10%) per annum. 
  

 31 

 “Effective Date” means the first Business Day following the date upon which the Commission
declares to be effective a registration statement filed by the Company pursuant to the Securities Act relating to the Conversion Shares. 
  
 “Euroclear” means the Euroclear System. 
  
 “Extraordinary Resolution” means a resolution passed at a meeting of the Noteholders duly convened and held in these Terms and Conditions.

  
 “Federal Bankruptcy Code” means the Bankruptcy Act
or Title 11 of the United States Code, as amended from time to time. 
  
 “Freely Tradable” means, with respect to the Notes and the Conversion Shares and Redemption Shares, that under the Securities Act the holders thereof may then offer and sell any amount of such outstanding securities to the public
in the United States without restrictions in transactions that are not brokers’ transactions (as defined in the Securities Act) either (i) pursuant to an effective registration statement then in effect or (ii) pursuant to Rule 144(k). For
purposes of determining whether such securities are Freely Tradable, it shall be assumed that no person that directly, or indirectly through one or more intermediaries, controls, or is controlled by, or is under common control with, the Company has
ever held such securities from and after their issuance. 
  
 “Generally Accepted Accounting Principles” or “GAAP” means generally accepted accounting principles in the United States, as applied from time to time by the Company and its Subsidiaries in the preparation of its
financial statements. 
  
 “Guaranty” means all
obligations of any Person (other than endorsements in the ordinary course of business of negotiable instruments for deposit or collection) of such Person guaranteeing or in effect guaranteeing any Indebtedness, dividend or other obligation, of any
other Person (the “primary obligor”) in any manner, whether directly or indirectly, including without limitation all obligations incurred through an agreement, contingent or otherwise, by such Person: (i) to purchase such Indebtedness or
obligation or any Property or assets constituting security therefor, or (ii) to advance or supply funds (1) for the purchase or payment of such Indebtedness or obligation, or (2) to enable the recipient of such funds to maintain certain financial
conditions (e.g. agreed amount of working capital) under loan or similar documents, or (iii) to lease Property or to purchase securities or other Property or services primarily for the purpose of assuring the owner of such Indebtedness or obligation
of the ability of the primary obligor to make payment of the Indebtedness or obligation, or (iv) otherwise to assure the owner of the Indebtedness or obligation of the primary obligor against loss in respect thereof. For the purposes of all
computations made under these Terms and Conditions, a Guaranty in respect of any Indebtedness shall be deemed to be Indebtedness equal to the principal amount and accrued interest of such Indebtedness which has been guaranteed, and a Guaranty in
respect of any other obligation or liability or any dividend shall be deemed to be Indebtedness equal to the maximum aggregate amount of such obligation, liability or dividend. 
  
 “Holder or Noteholder” means a Person in whose name a Note is registered on the Paying Agent’s books, or if a
Note is not in registered form, a Person who is a bearer of a Note or Coupon, as the case may be. 
  
 “Indebtedness” of any Person means and includes all present and future obligations of such Person, which shall include all obligations (i) which
in accordance with generally accepted accounting principles in the United States shall be classified upon a balance sheet of such Person as liabilities of such Person, (ii) for borrowed money, (iii) which have been incurred in connection with the
acquisition of Property (including, without limitation, all obligations of such Person evidenced by any debenture, bond, note, commercial paper or other similar security, but excluding, in any case, obligations arising from the endorsement in the
ordinary course of business of negotiable instruments for deposit or collection), (iv) secured by any Lien existing on Property owned by such Person, even though such Person has not assumed or become liable for the payment of such obligations, (v)
created or arising under any conditional sale or other title retention agreement with respect to Property acquired by such Person, notwithstanding the fact that the rights and remedies of the seller, lender or lessor under such agreement in the
event of default are limited to repossession or sale of 
  

 32 

 such Property, (vi) which are Capitalized Lease Obligations, (vii) for all Guaranties, whether or not reflected in the
balance sheet of such Person and (viii) which are all reimbursement and other payment obligations (whether contingent, matured or otherwise) of such Person in respect of any acceptance or documentary credit. Notwithstanding the foregoing,
Indebtedness shall not include (i) Indebtedness incidental to the operation of the business of the Person in the ordinary course and in the aggregate not material to the business and operations of the Person, (ii) Indebtedness for which the
Company or any of its Subsidiaries are the sole obligors and obligees, and (iii) Indebtedness represented by purchase, rental or lease obligations not to exceed $1,000,000 in any period of 12 months for any Person and its Subsidiaries. 

 
 “Interest Payment Date” means the Stated Maturity of an
installment of interest on the Notes. 
  
 “Issue Date”
means 19 August, 2004. 
  
 “Lien” means any mortgage,
charge, pledge, lien, security interest or encumbrance of any kind whatsoever, including any interest in Property securing an obligation owed to, or a claim by, a Person other than the owner of the Property, whether such interest is based on the
common law, statute or contract, and including but not limited to the security interest lien arising from a mortgage, encumbrance, pledge, conditional sale or trust receipt or a lease, consignment or bailment for security purposes. The term
“Lien” shall include reservations, exceptions, encroachments, easements, rights-of-way, covenants, conditions, restrictions, leases and other title exceptions and encumbrances affecting Property. For the purposes of these Terms and
Conditions, the Company or its Subsidiary shall be deemed to be the owner of any Property which it has acquired or holds subject to a conditional sale agreement, financing lease or other arrangement pursuant to which title to the Property has been
retained by or vested in some other Person for security purposes. 
  
 “Majority Holders” means the Holders of a majority of the principal amount of Notes Outstanding. 
  
 “Mandatory Conversion” means conversion of the Notes at the option of the Company pursuant to Condition 6D. 
  
 “Mandatory Conversion Date” means the effective date of any
Mandatory Conversion. 
  
 “Market Price” means the daily
closing sale price of the Shares for a Stock Exchange Business Day on a Stock Exchange. 
  
 “Maturity,” when used with respect to any Note, means the date on which the principal of such Note becomes due and payable as therein or herein provided, whether at the Stated Maturity or the Redemption Date
and whether by declaration of acceleration, call for redemption or otherwise. 
  
 “Outstanding,” when used with respect to Notes, means, as of the date of determination, all Notes theretofore issued, except: (1) Notes heretofore cancelled by the Paying and Conversion Agent or
delivered to the Paying and Conversion Agent for cancellation; (2) Notes, or portions thereof, for whose payment or redemption money in the necessary amount has been theretofore deposited any Paying Agent (other than the Company) in trust or set
aside and segregated in trust by the Company (if the Company shall act as its own Paying Agent) for the Holders of such Notes; provided that, if such Notes are to be redeemed, notice of such redemption has been duly given or provision therefor
satisfactory to the a Paying Agent has been made; (3) Notes, except to the extent provided in Conditions 13 (B) and 13(C), with respect to which the Company has effected defeasance and/or covenant defeasance as provided in Condition 13; and (4)
Notes which have been paid pursuant to or in exchange for or in lieu of which other Notes have been issued, however, that in determining whether the Holders of the requisite principal amount of Outstanding Notes have taken any Act or given or made
any Extraordinary Resolution, Notes owned by the Company or any other obligor upon the Notes or any Affiliate of the Company (other than Persons whose Affiliate relationship arises solely from ownership of Conversion Shares) or such other obligor
shall be disregarded and deemed not to be Outstanding. 
  

 33 

 “Paying Agent” means any Person (including the Company acting as Paying Agent) authorized by
the Company to pay the principal of or interest on any Notes on behalf of the Company. Pursuant to the terms and conditions hereof, the Company has initially appointed The Bank of New York as the Paying Agent. 
  
 “Person” means any individual, corporation, limited liability
company, limited or general partnership, joint venture, association, joint-stock company, trust, unincorporated organization or government or any agency or political subdivision thereof. 
  
 “Preferred Stock” means, with respect to any Person, any and all shares, interests, participation or other
equivalents (however designated) of such Person’s preferred or preference stock whether now outstanding or issued on or after the Issue Date, and includes, without limitation, all classes and series of preferred or preference stock. 

 
 “Presentation Date” means the date on which a Note is presented
by a Noteholder for payment of principal or a Coupon is presented by the Couponholder for payment of interest, as the case may be, or if such date is not a Business Day in London and New York, the next date which is a Business Day in each of the
foregoing cities. 
  
 “Property” or
“Properties” means any kind of property or asset, whether real, personal or mixed, or tangible or intangible, and any interest therein. 
  
 “Record Date” means the 15th day preceding each Interest Payment Date whether or not a Business Day. 
  
 “Redemption Date,” when used with respect to any Note to be
redeemed, in whole or in part, means the date fixed for such redemption by or pursuant to these Terms and Conditions. 
  
 “Redemption Price,” when used with respect to any Note and Coupons to be redeemed, means the price at which they are to be redeemed pursuant to
the terms hereof, plus accrued and unpaid interest to, but excluding, the Redemption Date, if applicable expressed in a number of Redemption Shares into which such Note shall be converted in the event the Notes and/or Coupons are to be redeemed for
Shares and, in the event of any other redemption, a cash amount. 
  
 “Redemption Shares” means the Shares issued on redemption of the Notes in accordance with these Terms and Conditions. 
  
 “Relevant Date” means the date on which the payment first becomes due; provided, that if the full amount of the money payable has not been
received by the Paying Agent on or before the due date, it shall mean the date on which, the full amount of the money having been so received, notice to that effect shall have been duly given to the Noteholders by the Company in accordance with
Condition 15. 
  
 “Rule 144A” means Rule 144A, as
amended, promulgated by the Commission pursuant to the Securities Act. 
  
 “Rule 144” means Rule 144, as amended, promulgated by the Commission pursuant to the Securities Act. 
  
 “Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated from time to time by the Commission
pursuant thereto. 
  
 “Shares” means the common stock,
par value U.S. $0.01, of the Company (and all other (if any) shares or stock resulting from any sub-division, consolidation or reclassification of such shares). 
  

“Special Record Date” means the date established by the Paying Agent as provided herein as a record date for the payment of defaulted
principal of or interest on the Notes. 
  

 34 

 “Stated Maturity,” when used with respect to any Indebtedness or any installment of principal
thereof or interest thereon, means the date specified in such Indebtedness as the fixed date on which the principal of such Indebtedness or such installment of principal or interest is due and payable. 
  
 “Stock Exchange” means any United States national or regional stock
exchange or quotation service such as NASDAQ National Market System or any similar quotation service maintained by the National Quotation Bureau or any successor thereto. 
  
 “Stock Exchange Business Day” means any day (other than a Saturday or Sunday) on which the Stock Exchange on which
the Shares are listed is open for business. 
  
 “Subordinated
Obligation” means any Indebtedness of the Company outstanding on such date which is contractually subordinate or junior in right of payment to the Notes. 
  

“Subsidiary” of any Person means any Corporation of which at least a majority of the shares of stock having by the terms thereof ordinary
voting power to elect a majority of the Board of Directors of such Corporation (irrespective of whether or not at the time stock of any other class or classes of such Corporation shall have or might have voting power by reason of the happening of
any contingency) is directly or indirectly owned or controlled by the Person. 
  
 “U.S. Government Obligations” means securities that are (x) direct obligations of the United States of America for the timely payment of which its full faith and credit is pledged or (y) obligations of a
Person controlled or supervised by and acting as an agency or instrumentality of the United States of America the timely payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States of America, which, in
either case, are not callable or redeemable at the option of the issuer thereof, and shall also include a depository receipt issued by a bank (as defined in Section 3(a)(2) of the Securities Act), as custodian with respect to any such U.S.
Government Obligation or a specific payment of principal of or interest on any such U.S. Government Obligation held by such custodian for the account of the holder of such depository receipt, provided that (except as required by law) such custodian
is not authorized to make any deduction from the amount payable to the holder of such depository receipt from any amount received by the custodian in respect of the U.S. Government Obligation or the specific payment of principal of or interest on
the U.S. Government Obligation evidenced by such depository receipt. 
  
 The Paying Agent and Conversion Agent is: 
  
 The Bank of
New York 
 through its London branch at: 
 One Canada Square 
 London E14 5AL 
 United Kingdom 
  
 and 

 
 The Bank of New York 
 Attention: Global Finance Unit 
 101 Barclay
Street, Floor 21 West 
 New York, New York 10286 
 USA 
  

 35 

 SCHEDULE A 
  
 Principal Amount of this Global Note 
  
 The aggregate principal amount of this Global Note is as shown by the latest entry made by or on behalf of the Paying Agent in the fourth column below.
Reductions in the outstanding principal amount of this Global Note following redemption, conversion into shares of Common Stock, or the purchase and cancellation of Notes are entered in the second and third columns below. 
  

									
	 Date

	 	 Reasons for change
 in the outstanding
 principal amount of
Global Note

	 	 Amount of
 such change

	 	 Outstanding principal
 amount of this Global
 Note following such
 change

	 	 Notation made by or
 on behalf of the Paying
Agent (other than
 in respect of the initial
 principal amount

	 19 August, 2004
	 	Not applicable	 	Not applicable	 	 	 	Not applicable
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 

  

 36 

 SCHEDULE B 
  
 Interest Payments in respect of this Global Note 
  
 The following payments of interest in respect of this Global Note have been made: 
  

							
	 Date made

	 	 Amounts of interest
 Due and payable

	 	 Amount of interest paid

	 	 Notation made by and on
behalf of the Paying Agent

	 	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 	 	 	 	 	 	 

  

 37 

 EXHIBIT A 
  

HOLDER’S CONVERSION NOTICE 
  
 To: [Conversion Agent] 
  
 The undersigned Holder of the 5% Senior Convertible Notes Due 2009 (the “Notes”) in the aggregate principal amount of U.S. $ tendered
herewith hereby irrevocably exercises the option to convert such Note(s) into shares of Common Stock in accordance with the Terms and Conditions of the Notes relating to the issuance by Harken Energy Corporation of an aggregate of U.S. $5,245,000 of
the Notes and directs that the Conversion Shares issuable and deliverable upon such conversion be issued and delivered to the undersigned in the name and at the address set forth below. 
  
 If the Conversion Shares are to be issued in the name of a Person other than the undersigned, the undersigned will pay all
transfer taxes payable with respect thereto and is delivering herewith a certificate in proper form certifying that the applicable restrictions on transfer have been complied with. 
  
 All terms used and not otherwise defined herein have the respective meanings set forth in the Terms and Conditions.

  
 DATE:
                             
  

	
	
	 
	 Name of Holder

	
	 
	Signature(s) of Holder

  
  
 Address for Delivery 
 of Share Certificates 
  

	
	
	 
	
	 
	
	 

  
 Name for Registration

 of Share Certificates (if 
 Different than Holder): 

 

	
	
	 

  

 A-1 

 EXHIBIT B 
  

COMPANY’S CONVERSION NOTICE 
  
 To: Conversion Agent 
  
 Harken Energy Corporation (the “Company”) hereby irrevocably exercises the option to convert all of the 5% Senior Convertible Notes Due 2009
(the “Notes”) of the Company that have not been previously converted and are Outstanding at the date of this notice into shares of its Common Stock, in accordance with the Terms and Conditions, pursuant to which the Company has issued an
aggregate of U.S. $5,245,000 of the Notes, and confirms that the Conversion Shares issuable and deliverable upon conversion shall be issued and delivered to the Noteholders in accordance with the instructions for registration and delivery of the
Conversion Shares to each Holder, to be provided by each Holder to the Conversion Agent. 
  
 The Company is entitled to exercise its option to convert because (i) the Effective Date has been reached, (ii) the average of the Market Price of the Common Stock over the 20 Stock Exchange Business Day period
beginning on                  and ending on                  (being dates after the
Effective Date) equaled or exceeded 125% of the Conversion Price, and (iii) the Conversion Shares were Freely Tradeable and listed on the date such threshold was met and for the 30 calendar day period after such date. 
  
 All terms used and not otherwise defined herein shall have the respective
meanings set forth in the Terms and Conditions. 
  

					
	DATE:                            	 	HARKEN ENERGY CORPORATION
			
	 	 	    By:	 	 
			
	 	 	    Name:	 	 
			
	 	 	    Title:	 	 

  

 B-1 

 EXHIBIT C 
  

COMPANY’S NOTICE OF REDEMPTION FOR SHARES 
  
 To: [Paying and Conversion Agent] 
  
 Harken Energy Corporation (the “Company”) hereby irrevocably exercises the option to redeem
             United States dollars (U.S. $                     ) principal
amount of the 5% Senior Convertible Notes Due 2009 (the “Notes”) of the Company that have not been previously converted and are Outstanding at the date of this notice into shares of its Common Stock, in accordance with the Terms and
Conditions, pursuant to which the Company has issued an aggregate of U.S. $5,245,000 of the Notes, and confirms that the Redemption Shares issuable and deliverable upon redemption shall be issued and delivered to the Noteholders in accordance with
the instructions for registration and delivery of the Redemption Shares to each Holder, to be provided by each Holder to the Conversion Agent. 
  
 Each Note so redeemed will be redeemed for the number of Shares of Common Stock equal to 110% of the face value of the Note plus interest accrued and
unpaid thereon divided by US $                     , which represents the average of the Market Price of the Common Stock over the 20 Stock
Exchange Business Day period immediately preceding the notice of redemption. 
  
 All terms used and not otherwise defined herein shall have the respective meanings set forth in the Terms and Conditions. 
  

					
	DATE:                            	 	HARKEN ENERGY CORPORATION
			
	 	 	    By:	 	 
			
	 	 	    Name:	 	 
			
	 	 	    Title:	 	 

  
  

 C-1

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