Document:

Execution
      Copy

     

    STOCK
      OPTION AGREEMENT

     

    This
      STOCK
      OPTION AGREEMENT
      (this
“Agreement”),
      dated
      as of August 17, 2007 (the “Grant
      Date”),
      is
      between ____________ (the “Optionee”)
      and
      Advanced Communications Technologies, Inc., a Florida corporation (the
“Company”).

     

    WHEREAS,
      the
      Optionee is an employee of the Company; and

     

    WHEREAS,
      the
      Company desires to create an incentive for the Optionee to use his best efforts
      in the performance of his duties to and for the benefit of the Company and
      its
      subsidiaries by granting him an option to purchase shares of the Company’s
      Common Stock.

     

    NOW,
      THEREFORE,
      the
      Optionee and the Company hereby agree as follows:

     

    1. Definitions.
      For all
      purposes of this Agreement, the following terms shall have the meanings set
      forth below:

     

    “Base EBITDA Targets”
means
      the Base EBITDA targets for the Company’s 2008, 2009 and 2010 fiscal years set
      forth on Schedule 1
      hereto;
      provided, that if the Company or any of its subsidiaries in any fiscal year
      enters into any extraordinary transaction, such as a business acquisition or
      disposition, the Board in the exercise of its sole discretion may, at any time
      during such fiscal year, adjust upward or downward any such target to take
      into
      account such extraordinary transaction.

     

    “Board”
means
      the Board of Directors of the Company.

     

    “Cause”
has
      the
      meaning specified in the Employment Agreement.

     

    “Code”
means
      the Internal Revenue Code of 1986, as amended.

     

    “Common
      Stock”
means
      the common stock of the Company, no par value.

     

    “Company”
has
      the
      meaning specified in the preamble hereto.

     

    “Consolidated Net Income”
means,
      for any period, the net income (or loss) of the Company and its subsidiaries
      for
      such period on a consolidated basis, after deducting all operating expenses,
      provisions for all taxes and reserves (including reserves for deferred income
      taxes) and all other proper deductions, all determined in accordance with
      generally accepted accounting principles consistently applied, after eliminating
      all intercompany items, but excluding from the definition of Consolidated Net
      Income any extraordinary gains and/or losses and any gains and/or losses from
      the sale or other disposition of assets other than in the ordinary course of
      business, all determined in accordance with generally accepted accounting
      principles consistently applied.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    “EBITDA”
means,
      with respect to any fiscal year, the sum of the Consolidated Net Income (as
      defined in the Employment Agreement) (or loss) of the Company and its
      subsidiaries for such fiscal year, calculated in accordance with generally
      accepted accounting principles consistently applied but excluding any
      extraordinary items of income, plus
      all
      amounts deducted in the computation thereof on account of (a) interest expense
      (net of any interest income), (b) income taxes, (c) depreciation and
      amortization, (d) charges for stock-based compensation, (e) implementation
      expenses for Sarbanes-Oxley compliance not to exceed $150,000, (f) expenses
      incurred to file a Demand Registration Statement on behalf of Investor
      Stockholders, as defined in that certain Registration Rights Agreement dated
      August 17, 2007; and (h) H.I.G. Capital L.L.C. management fees accrued or paid
      during such fiscal year.

     

    “Employment Agreement”
means
      the Employment Agreement, dated as of the date hereof, between the Grantee
      and
      the Company.

     

    “Exercise Price”
has
      the
      meaning specified in Section 2 hereof.

     

    “Family Trust”:
      means,
      with respect to any individual, any trust created for the benefit of one or
      more
      of such individual’s Related Persons and controlled by such individual or one or
      more Related Persons.

     

    “Grant
      Date”
has
      the
      meaning specified in the preamble hereto.

     

    “Good
      Reason”
has
      the
      meaning specified in the Employment Agreement.

     

    “Option”
has
      the
      meaning specified in Section 2 hereof.

     

    “Optionee”
has
      the
      meaning specified in the preamble hereto.

     

    “Optioned
      Shares”
has
      the
      meaning specified in Section 2 hereof.

     

    “Plan”
means
      the Company’s Amended and Restated 2005 Stock Plan attached hereto as
Exhibit
      A.

     

    “Related Persons”:
      means,
      with respect to any individual, such individual’s parents, spouse, children and
      grandchildren.

     

    “Termination
      Date”
has
      the
      meaning specified in Section 4(a) hereof.

     

    “Vested Optioned Shares”
has
      the
      meaning specified in Section 5 below.

     

    2. Grant
      of Option.
      

     

    (a) Subject
      to the terms and conditions set forth herein and pursuant to the Plan, the
      Company grants to the Optionee an option (the “Option”)
      to
      purchase from the Company all or any part of (i) ___________ shares of Common
      Stock hereof the “Tenured
      Optioned Shares”),
      at a
      price of $.00075 per Tenured Optioned Share (the “Exercise
      Price”)
      and
      (ii) ____________shares of Common Stock (the “Performance
      Optioned Shares”,
      and
      together with the Tenured Option Shares, the “Optioned
      Shares”)
      at a
      price per Performance Optioned Share equal to the Exercise Price.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    (b) Anything
      in this Agreement to the contrary notwithstanding, the Option is subject to
      and
      entirely contingent upon an amendment to the Articles of Incorporation of the
      Company (the “Charter
      Amendment”)
      to
      increase the authorized number of shares of Common Stock to an amount sufficient
      for the grant of restricted stock and options in the maximum number contemplated
      by the Plan, which Charter Amendment is subject to the approval of the
      stockholders of the Company.

     

    3. Character
      of Option.
      This
      Option is not intended to qualify as an incentive option under Section 422
      of
      the Code.

     

    4. Duration
      of Option.
      The
      Option shall terminate in its entirety on the earliest of (i) the tenth (10th)
      anniversary of the Grant Date or (ii) such earlier time as the Option may
      terminate in accordance with the Plan.

     

    5. Exercise
      of Option.

     

    (a) At
      any
      time after the
      approval of the Charter Amendment and the effective filing thereof with the
      Florida Department of State, and
      prior to
      the termination of the Option pursuant to Section 4 above, the Optionee shall
      have the right to exercise the Option for all or a portion of the Optioned
      Shares which have become “Vested Optioned Shares”
as
      of
      the date of exercise determined in accordance with this paragraph
      (a):

     

    (i) Initially,
      ___________ of the Tenured Optioned Shares shall be considered Vested Optioned
      Shares. One twelfth (1/12th) of the remaining ______________ Tenured Optioned
      Shares shall become “Vested Optioned Shares” upon the expiration of each three
      (3) month period after the Grant Date, such that all of the Tenured Optioned
      Shares shall be Vested Optioned Shares as of and after the third anniversary
      of
      the Grant Date, if the Option has not terminated prior to such
      date.

     

    (ii) Initially,
      none of the Performance Optioned Shares shall be considered Vested Optioned
      Shares. In the event that a Base EBITDA Target is met or exceeded for a given
      fiscal year, one
      third
      (1/3rd) of the original number of Performance Optioned Shares
      shall
      become “Vested Optioned Shares” upon the completion of the Company’s audited
      financial statements for such year demonstrating that such Base EBITDA Target
      has been met or exceeded for such year. In the event that a Base EBITDA Target
      is not met for either the 2008 or the 2009 fiscal year, such one third (1/3rd)
      of the original number of Performance Optioned Shares shall not become Vested
      Optioned Shares unless and until the Company meets the Base EBITDA Target for
      the following fiscal year. 

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    (iii) Upon
      the
      occurrence of any Change of Control (as defined in the Plan) or any termination
      by the Company of the Optionee’s employment with the Company without Cause (as
      defined in the Plan) or by the Executive for Good Reason, all
      of
      the Tenured Optioned Shares that are not then vested shall become Vested
      Optioned Shares.

     

    (iv) Notwithstanding
      the foregoing, in no event shall any Optioned Shares which have not already
      become Vested Optioned Shares become Vested Optioned Shares after the
      termination of the Optionee’s employment with the Company for any
      reason.

     

    (b) Subject
      to Section 4 hereof, exercise of the Option may be effected in the manner
      specified in Section 6 of the Plan.

     

    6. Transfer
      of Option.
      During
      the Grantee’s lifetime, the Option may be exercised only by the Grantee. Except
      for a transfer of the Option to the Grantee’s Related Persons or Family Trust by
      will or operation of law after the Grantee’s death, the Option and all rights
      granted hereunder may not be transferred, assigned, pledged, or hypothecated
      (whether by operation of law or otherwise) and shall not be subject to
      execution, attachment, or similar process. Any transfer of the Option in
      violation of this Section 6 shall be void and will result in the immediate
      termination of the Option.

     

    7. Incorporation
      of Plan Terms.
      This
      Option is granted subject to all of the applicable terms and provisions of
      the
      Plan.

     

    8. Limitation
      of Rights in Optioned Shares.
      The
      Optionee shall not be deemed for any purpose to be a stockholder of the Company
      with respect to any of the Optioned Shares except to the extent that the Option
      shall have been exercised with respect thereto and, in addition, a stock
      certificate therefor shall have been delivered to the Optionee.

     

    9. Communication.
      All
      notices, demands and other communications hereunder shall be in writing or
      by
      written telecommunication, and shall be deemed to have been duly given if
      delivered personally or if mailed by certified mail, return receipt requested,
      postage prepaid, or if sent by overnight courier, or sent by written
      telecommunication, as follows:

     

    (a) if
      to an
      Optionee, at such address set forth after Optionee’s name on the signature page
      hereto; and

     

    (b) if
      to the
      Company, at:

     

     
      Advanced Communications Technologies, Inc.

     
      420 Lexington Avenue, Suite 2739

     
      New York, New York 10170

     
Facsimile:
      646.277.1666

     
Attention:
      CEO

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    Any
      such
      notice shall be effective (i) if delivered personally, when received, (ii)
      if
      sent by overnight courier, when receipted for, (iii) if mailed, five (5) days
      after being mailed as described above and (iv) if sent by written
      telecommunication, when dispatched.

     

    10. Governing
      Law.
      This
      Agreement and the obligations of the parties hereunder shall be deemed to be
      a
      contract under seal and shall for all purposes be governed by and construed
      in
      accordance with the internal laws of the State of New York without reference
      to
      principles of conflicts of law.

     

    11. Successors
      and Assigns.
      This
      Agreement shall be binding upon any successor or assign of either the Company
      or
      the Optionee, and upon any executor, administrator, trustee, guardian, or other
      legal representative of the Optionee.

     

    {Remainder
      of Page Intentionally Left Blank.}

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

       

    

    IN
      WITNESS WHEREOF,
      the
      parties have executed this Stock Option Agreement as of the date and year first
      above written.

     

    
      	 	 	 
	THE
              COMPANY:	
              ADVANCED
                COMMUNICATIONS TECHNOLOGIES,
                INC.

            
	 
 	 
 	 
 
	
            	By:  	 
	
               

               

            	
              
Title:

    

     

    
      	THE
              OPTIONEE:	 	 
	
            	 	
               

            
	 	
              
Name:
	 	
              Address:
                 

            

    

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    Schedule
      1

    

    Base
      EBITDA Targets

     

    
      
        	
                Fiscal
                  Year

              	 	
                EBITDA
                  Target

              	 
	 	 	 	 
	
                2008

              	 	
                $

              	
                ___________

              	 
	
                2009

              	 	
                $

              	
                ___________

              	 
	
                2010

              	 	
                $

              	
                ___________

              	 

      

       

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

         

      

    

    Exhibit
      A

    Amended
      2007 Stock Plan<PAGE>

                                                                     Exhibit 4.4

================================================================================

                        SUNTECH POWER HOLDINGS CO., LTD.

                                       and

                            WILMINGTON TRUST COMPANY

                         as Trustee and Securities Agent

                         -------------------------------

                                    INDENTURE

                          Dated as of February 12, 2007

                        --------------------------------

                          $500,000,000 Principal Amount

                     0.25% CONVERTIBLE SENIOR NOTES DUE 2012

================================================================================

<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                    PAGE
                                                                                                                    ----
<S>                                                                                                                 <C>

I.       DEFINITIONS AND INCORPORATION BY REFERENCE..............................................................      1

         1.01     Definitions....................................................................................      1
         1.02     Other Definitions..............................................................................      6
         1.03     Incorporation by Reference of Trust Indenture Act..............................................      8
         1.04     Rules of Construction..........................................................................      9

II.      THE SECURITIES..........................................................................................      9

         2.01     Form and Dating................................................................................      9
         2.02     Execution and Authentication...................................................................     10
         2.03     Registrar, Paying Agent and Conversion Agent...................................................     10
         2.04     Paying Agent to Hold Money in Trust............................................................     11
         2.05     Securityholder Lists...........................................................................     11
         2.06     Transfer and Exchange..........................................................................     11
         2.07     Replacement Securities.........................................................................     12
         2.08     Outstanding Securities.........................................................................     12
         2.09     Securities Held by the Company or an Affiliate.................................................     13
         2.10     Temporary Securities...........................................................................     13
         2.11     Cancellation...................................................................................     14
         2.12     Defaulted Interest.............................................................................     14
         2.13     CUSIP Numbers..................................................................................     14
         2.14     Deposit of Moneys..............................................................................     14
         2.15     Book-Entry Provisions for Global Securities....................................................     15
         2.16     Special Transfer Provisions....................................................................     16
         2.17     Restrictive Legends............................................................................     17
         2.18     Ranking........................................................................................     17

III.     REDEMPTION AND REPURCHASE...............................................................................     17

         3.01     Right of Redemption............................................................................     17
         3.02     Notices to Trustee and the Securities Agent....................................................     18
         3.03     Selection of Securities to be Redeemed.........................................................     18
         3.04     Notice of Redemption...........................................................................     19
         3.05     Effect of Notice of Redemption.................................................................     20
         3.06     Deposit of Redemption Price....................................................................     21
         3.07     Securities Redeemed in Part....................................................................     21
         3.08     [reserved].....................................................................................     21
         3.09     Purchase of Securities at Option of the Holder.................................................     21
         3.10     Repurchase at Option of Holder Upon a Fundamental Change.......................................     25
         3.11     Conversion Arrangement on Call for Redemption..................................................     32
</TABLE>

                                      -i-
<PAGE>

<TABLE>
<S>                                                                                                                 <C>
IV.      COVENANTS...............................................................................................     33

         4.01     Payment of Securities..........................................................................     33
         4.02     Maintenance of Office or Agency................................................................     33
         4.03     Rule 144A Information and Annual Reports.......................................................     34
         4.04     Compliance Certificate.........................................................................     35
         4.05     Stay, Extension and Usury Laws.................................................................     35
         4.06     Corporate Existence............................................................................     35
         4.07     Notice of Default..............................................................................     35
         4.08     Further Instruments and Acts...................................................................     35
         4.09     Delivery of Ordinary Shares....................................................................     36

V.       SUCCESSORS..............................................................................................     36

         5.01     When Company May Merge, etc. ....................................................................   36
         5.02     Successor Substituted..........................................................................     36

VI.      DEFAULTS AND REMEDIES...................................................................................     36

         6.01     Events of Default..............................................................................     36
         6.02     Acceleration...................................................................................     38
         6.03     Other Remedies.................................................................................     39
         6.04     Waiver of Past Defaults........................................................................     39
         6.05     Control by Majority............................................................................     40
         6.06     Limitation on Suits............................................................................     40
         6.07     Rights of Holders to Receive Payment...........................................................     40
         6.08     Collection Suit by Trustee.....................................................................     41
         6.09     Trustee May File Proofs of Claim...............................................................     41
         6.10     Priorities.....................................................................................     41
         6.11     Undertaking for Costs..........................................................................     42

VII.     TRUSTEE AND SECURITIES AGENT............................................................................     42

         7.01     Duties of Trustee and the Securities Agent.....................................................     42
         7.02     Rights of Trustee and the Securities Agent.....................................................     43
         7.03     Individual Rights of Trustee and the Securities Agent..........................................     45
         7.04     Disclaimer of the Trustee and the Securities Agent.............................................     45
         7.05     Notice of Defaults.............................................................................     45
         7.06     Reports by Trustee to Holders..................................................................     45
         7.07     Compensation and Indemnity.....................................................................     46
         7.08     Replacement of Trustee or the Securities Agent.................................................     47
         7.09     Successor Trustee by Merger, etc. ..............................................................    48
         7.10     Eligibility; Disqualification..................................................................     48
         7.11     Preferential Collection of Claims Against Company..............................................     48

VIII.    DISCHARGE OF INDENTURE..................................................................................     48

         8.01     Termination of the Obligations of the Company..................................................     48
</TABLE>

                                      -ii-
<PAGE>

<TABLE>
<S>                                                                                                                 <C>
         8.02     Application of Trust Money.....................................................................     49
         8.03     Repayment to Company...........................................................................     49
         8.04     Reinstatement..................................................................................     49

IX.      AMENDMENTS..............................................................................................     50

         9.01     Without Consent of Holders.....................................................................     50
         9.02     With Consent of Holders........................................................................     51
         9.03     Compliance with Trust Indenture Act............................................................     52
         9.04     Revocation and Effect of Consents..............................................................     52
         9.05     Notation on or Exchange of Securities..........................................................     52
         9.06     Trustee and Securities Agent Protected.........................................................     53
         9.07     Effect of Supplemental Indentures..............................................................     53

X.       CONVERSION..............................................................................................     53

         10.01    Conversion Privilege; Restrictive Legends......................................................     53
         10.02    Conversion Procedure and Payment Upon Conversion...............................................     56
         10.03    Taxes on Conversion............................................................................     60
         10.04    Company to Provide Ordinary Shares And ADSs....................................................     61
         10.05    Adjustment of Conversion Rate..................................................................     62
         10.06    No Adjustment..................................................................................     71
         10.07    Other Adjustments..............................................................................     72
         10.08    Adjustments for Tax Purposes...................................................................     72
         10.09    Notice of Adjustment...........................................................................     73
         10.10    Notice of Certain Transactions.................................................................     73
         10.11    Effect of Reclassifications, Business Combinations, Asset Sales And Other Corporate Events on
                  Conversion Privilege...........................................................................     73
         10.12    Disclaimer of the Trustee, the Conversion Agent and the Securities Agent.......................     75
         10.13    Rights Distributions Pursuant To Anti-Takeover Provisions......................................     75
         10.14    Increased Conversion Rate Applicable to Certain Securities Surrendered in Connection
                  With Make-Whole Fundamental Changes............................................................     76

XI.      TAX TREATMENT...........................................................................................     79

         11.01    Tax Treatment..................................................................................     79
         11.02    Tax Withholding Obligations....................................................................     79

XII.     MISCELLANEOUS...........................................................................................     79

         12.01    Trust Indenture Act Controls...................................................................     79
         12.02    Notices........................................................................................     79
         12.03    Communication  by Holders with Other Holders...................................................     81
         12.04    Certificate and Opinion as to Conditions Precedent.............................................     81
         12.05    Statements Required in Certificate or Opinion..................................................     81
         12.06    Rules by Trustee and Agents....................................................................     81
         12.07    Legal Holidays.................................................................................     82
         12.08    Duplicate Originals............................................................................     82
</TABLE>

                                     -iii-
<PAGE>

<TABLE>
<S>                                                                                                          <C>
12.09    Governing Law..................................................................................     82
12.10    Submission to Jurisdiction.....................................................................     82
12.11
12.12    Judgment Currency..............................................................................     83
12.13    No Adverse Interpretation of Other Agreements..................................................     83
12.14    Successors.....................................................................................     83
12.15    Separability...................................................................................     83
12.16    Table of Contents, Headings, Etc...............................................................     83
12.17    Calculations in Respect of the Securities......................................................     84
12.18    No Personal Liability of Directors, Officers, Employees or Shareholders........................     84
</TABLE>

Exhibit A     -   Form of Global Security
Exhibit B-1   -   Form of Private Placement Legend
Exhibit B-2   -   Form of Legend for Global Security
Exhibit C     -   Form of Notice of Transfer Pursuant to Registration Statement
Exhibit D     -   Form of Opinion of Counsel in Connection With Registration
                  of Securities
Exhibit E     -   Projected Payment Schedule

                                      -iv-

<PAGE>

                              CROSS-REFERENCE TABLE

<TABLE>
<CAPTION>
  TIA                                                                   Indenture
Section                                                                  Section
-------                                                                 ---------
<S>                                                                     <C>
310  (a)(1)...........................................................  7.10
     (a)(2)...........................................................  7.10
     (a)(3)...........................................................  N.A.
     (a)(4)...........................................................  N.A.
     (a)(5)...........................................................  N.A.
     (b)..............................................................  7.08; 7.10; 12.02
     (c)..............................................................  N.A.
311  (a)..............................................................  7.11
     (b)..............................................................  7.11
     (c)..............................................................  N.A.
312  (a)..............................................................  2.05
     (b)..............................................................  12.03
     (c)..............................................................  12.03
313  (a)..............................................................  7.06
     (b)(1)...........................................................  N.A.
     (b)(2)...........................................................  7.06
     (c)..............................................................  7.06; 12.02
     (d)..............................................................  7.06
314  (a)..............................................................  4.03
     (b)..............................................................  N.A.
     (c)(1)...........................................................  12.04
     (c)(2)...........................................................  12.04
     (c)(3)...........................................................  N.A.
     (d)..............................................................  N.A.
     (e)..............................................................  12.05
     (f)..............................................................  N.A.
315  (a)..............................................................  7.01(B)
     (b)..............................................................  7.05; 12.02
     (c)..............................................................  7.01(A)
     (d)..............................................................  7.01(C)
     (e)..............................................................  6.11
316  (a) (last sentence)..............................................  2.09
     (a)(1)(A)........................................................  6.05
     (a)(1)(B)........................................................  6.04
     (a)(2)...........................................................  N.A.
     (b)..............................................................  6.07
     (c)..............................................................  N.A.
317  (a)(1)...........................................................  6.08
     (a)(2)...........................................................  6.09
     (b)..............................................................  2.04
318(a)................................................................  12.01
</TABLE>

                                        1

<PAGE>

            INDENTURE, dated as of February 12, 2007, between Suntech Power
Holdings Co., Ltd., a company incorporated under the laws of the Cayman Islands
(the "COMPANY") and Wilmington Trust Company, as trustee (the "TRUSTEE") and
securities agent (the "SECURITIES AGENT").

            Each party agrees as follows for the benefit of the other party and
for the equal and ratable benefit of the Holders of the Company's 0.25%
Convertible Senior Notes due 2012 (the "SECURITIES").

                 I. DEFINITIONS AND INCORPORATION BY REFERENCE

      1.01 DEFINITIONS.

            The term "ADDITIONAL INTEREST" has the meaning ascribed to it in the
Registration Rights Agreement.

            "ADS" means the Company's American depositary shares, each
representing one Ordinary Share.

            "ADS DEPOSITARY" means The Bank of New York, as the depositary under
the Deposit Agreement.

            "ARTICLES OF ASSOCIATION" means the Second Amended and Restated
Memorandum and Articles of Association of the Company adopted on October 26,
2005, as amended from time to time.

            "AFFILIATE" means any person directly or indirectly controlling or
controlled by or under direct or indirect common control with the Company. For
this purpose, "control" shall mean the power to direct the management and
policies of a person through the ownership of securities, by contract or
otherwise.

            "ASSET SALE MAKE-WHOLE FUNDAMENTAL CHANGE" means a sale, transfer,
lease, conveyance or other disposition (other than a Permitted Transfer) of all
or substantially all of the property or assets of the Company to any "person" or
"group" (as such terms are used in Sections 13(d) and 14(d) of the Exchange
Act), including any group acting for the purpose of acquiring, holding, voting
or disposing of securities within the meaning of Rule 13d-5(b)(1) under the
Exchange Act.

            "BID SOLICITATION AGENT" means a Company-appointed agent that
performs calculations as set forth in ARTICLE X and PARAGRAPHS 1 and 10 of the
Securities.

            "BOARD OF DIRECTORS" means the Board of Directors of the Company or
any committee thereof authorized to act for it hereunder.

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

                                       -1-
<PAGE>

            "CLOSING SALE PRICE" means the price per ADS on the relevant date,
determined (a) on the basis of the closing sale price per ADS (or if no closing
sale price per ADS is reported, the average of the bid and ask prices per ADS
or, if more than one in either case, the average of the average bid and the
average ask prices per ADS) on such date on the New York Stock Exchange or other
U.S. principal national securities exchange on which the ADSs are listed; or (b)
if the ADSs are not listed on a U.S. national securities exchange, as reported
by the National Association of Securities Dealers Automated Quotation System; or
(c) if not so quoted, as reported by National Quotation Bureau, Incorporated or
a similar organization. In the absence of a quotation, the Closing Sale Price
shall be such price as the Company shall reasonably determine on the basis of
such quotations as most accurately reflecting the price that a fully informed
buyer, acting on his own accord, would pay to a fully informed seller, acting on
his own accord in an arm's-length transaction, for each such ADS.

            "COMPANY" means the party named as such above until a successor
replaces it pursuant to the applicable provision hereof and thereafter means the
successor. The foregoing sentence shall likewise apply to any such successor or
subsequent successor.

            "COMPANY ORDER" or "COMPANY REQUEST" means a written request or
order signed on behalf of the Company by any one Officer.

            "CONVERSION PRICE" means, as of any date of determination, the
dollar amount derived by dividing one thousand dollars ($1,000) by the
Conversion Rate in effect on such date.

            "CONVERSION RATE" shall initially be 20.5074 ADSs per $1,000
principal amount of Securities, subject to adjustment as provided in ARTICLE X.

            "CORPORATE TRUST OFFICE" shall mean with respect to the Trustee and
the Securities Agent, Wilmington Trust Company, 100 North Market Street, Rodney
Square North, Wilmington, Delaware, 19890, Attention: Suntech; or any other
address that the Trustee or the Securities Agent may designate with respect to
itself from time to time by notice to the Company and the Securityholders.

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

            "DEPOSITARY" means The Depository Trust Company, its nominees and
successors.

            "DEPOSIT AGREEMENT" means the Deposit Agreement, dated as of
December 13, 2005, among the Company, The Bank of New York, as ADS depositary,
and the holders and beneficial owners from time to time of the ADSs issued
thereunder, as supplemented by the Restricted ADS Facility Letter.

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

            "HOLDER" or "SECURITYHOLDER" means a person in whose name a Security
is registered on the Registrar's books.

                                       -2-
<PAGE>

            "INDEBTEDNESS" of a person means the principal of, premium, if any,
and interest on, and all other obligations in respect of (a) all indebtedness of
such person for borrowed money (including all indebtedness evidenced by notes,
bonds, debentures or other securities), (b) all obligations (other than trade
payables) incurred by such person in the acquisition (whether by way of
purchase, merger, consolidation or otherwise and whether by such person or
another person) of any business, real property or other assets, (c) all
reimbursement obligations of such person with respect to letters of credit,
bankers' acceptances or similar facilities issued for the account of such
person, (d) all capital lease obligations of such person, (e) all net
obligations of such person under interest rate swap, currency exchange or
similar agreements of such person, (f) all obligations and other liabilities,
contingent or otherwise, under any lease or related document, including a
purchase agreement, conditional sale or other title retention agreement, in
connection with the lease of real property or improvements thereon (or any
personal property included as part of any such lease) which provides that such
person is contractually obligated to purchase or cause a third party to purchase
the leased property or pay an agreed-upon residual value of the leased property,
including such person's obligations under such lease or related document to
purchase or cause a third party to purchase such leased property or pay an
agreed-upon residual value of the leased property to the lessor, (g) guarantees
by such person of indebtedness described in CLAUSES (a) THROUGH (f) of another
person, and (h) all renewals, extensions, refundings, deferrals, restructurings,
amendments and modifications of any indebtedness, obligation, guarantee or
liability of the kind described in CLAUSES (a) THROUGH (g).

            "INDENTURE" means this Indenture as amended or supplemented from
time to time.

            "INITIAL PURCHASERS" means UBS Securities LLC, Goldman Sachs (Asia)
L.L.C. and ABN AMRO Bank N.V., Hong Kong Branch and N M Rothschild & Sons (Hong
Kong) Limited, each trading as ABN AMRO Rothschild..

            "ISSUE DATE" means February 12, 2007.

            "MAKE-WHOLE FUNDAMENTAL CHANGE" means an Asset Sale Make-Whole
Fundamental Change, an Ordinary Share Change Make-Whole Fundamental Change or a
Voting Share Change Make-Whole Fundamental Change that occurs before Maturity
Date.

            "MARKET DISRUPTION EVENT" means the occurrence or existence during
the one-half hour period ending on the scheduled close of trading on any trading
day for the ADSs of any material suspension or limitation imposed on trading (by
reason of movements in price exceeding limits permitted by the stock exchange or
otherwise) in the ADSs or in any options contracts or futures contracts relating
solely to the ADSs.

            "MATURITY DATE" means February 15, 2012.

            "OFFICER" means the Chairman of the Board, the Chief Executive
Officer, the Chief Operating Officer, the Chief Financial Officer, any Executive
Vice President, the Treasurer or the Secretary of the Company.

            "OFFICER'S CERTIFICATE" means a certificate signed by any one
Officer of the Company.

                                       -3-
<PAGE>

            "OPINION OF COUNSEL" means a written opinion from legal counsel who
may be an employee of or counsel for the Company, or other counsel reasonably
acceptable to the Trustee.

            "ORDINARY SHARE" means the ordinary shares, $0.01 par value per
share, of the Company, or such other Share Capital of the Company into which the
Company's Ordinary Share is reclassified or changed.

            "ORDINARY SHARE CHANGE MAKE-WHOLE FUNDAMENTAL CHANGE" means any
transaction or series of related transactions (other than a Listed Share
Business Combination), in connection with which (whether by means of an exchange
offer, liquidation, dissolution, winding up, tender offer, consolidation,
merger, reconstruction, amalgamation, combination, reclassification,
recapitalization, asset sale, lease of assets or otherwise) the Ordinary Shares
(including Ordinary Shares represented by ADSs) are exchanged for, converted
into, acquired for or constitutes solely the right to receive other securities,
other property, assets or cash.

            "PERMITTED TRANSFER" shall mean any transfer of property or assets
between or among one or more Subsidiaries or from one or more Subsidiaries to
the Company.

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

            "PURCHASE AGREEMENT" means the Purchase Agreement dated February 7,
2007 between the Company and the Initial Purchasers.

            "PURCHASE NOTICE" means a Purchase Notice in the form set forth in
the Securities.

            "QIB" means a "qualified institutional buyer" within the meaning of
Rule 144A under the Securities Act.

            "REDEMPTION DATE" means the date specified for Redemption of the
Securities in accordance with the terms of the Securities and this Indenture.

            "REDEMPTION PRICE" means, with respect to a Security to be redeemed
by the Company in accordance with ARTICLE III, one hundred percent (100%) of the
outstanding principal amount of such Security to be redeemed.

            "REGISTRATION RIGHTS AGREEMENT" means the Registration Rights
Agreement dated as of the date hereof between the Company and the Initial
Purchasers.

            "RESPONSIBLE OFFICER" shall mean, when used with respect to the
Trustee or the Securities Agent, any officer within the corporate trust
department of the Trustee or the Securities Agent, including any vice president,
assistant vice president, assistant secretary, assistant treasurer, trust
officer or any other officer of the Trustee or the Securities Agent, as
applicable, who customarily performs functions similar to those performed by the
Persons who at the time shall be such officers, respectively, or to whom any
corporate trust matter is referred because of such person's knowledge of and
familiarity with the particular subject and who shall in each case have direct
responsibility for the administration of this Indenture.

                                       -4-
<PAGE>

            "RESTRICTED ADS FACILITY LETTER" means the letter agreement dated as
of February 12, 2007, and between the Company and The Bank of New York, as ADS
Depository.

            "RESTRICTED SECURITY" means a Security that constitutes a
"restricted security" within the meaning of Rule 144(a)(3) under the Securities
Act; provided, however, that the Trustee shall be entitled to request and
conclusively rely on an Opinion of Counsel with respect to whether any Security
constitutes a Restricted Security.

            "RULE 144A" means Rule 144A under the Securities Act.

            "SEC" means the Securities and Exchange Commission.

            "SCHEDULED TRADING DAY" means a day that is scheduled to be a
Trading Day on the principal U.S. national securities exchange on which the ADSs
are listed.

            "SECURITIES" means the 0.25% Convertible Senior Notes due 2012
issued by the Company pursuant to this Indenture.

            "SECURITIES ACT" means the Securities Act of 1933, as amended, and
the rules and regulations of the SEC thereunder.

            "SECURITIES AGENT" means Wilmington Trust Company, in its capacity
as Registrar, Paying Agent, Conversion Agent or Bid Solicitation Agent.

            "SHARE CAPITAL" of any Person means any and all shares, interests,
participations or other equivalents (however designated) of share capital of
such Person and all warrants or options to acquire such share capital.

            "SIGNIFICANT SUBSIDIARY" with respect to any person means any
subsidiary of such person that constitutes a "significant subsidiary" within the
meaning of Rule 1-02(w) of Regulation S-X under the Securities Act, as such
regulation is in effect on the date of this Indenture.

            "SUBSIDIARY" means (i) a corporation a majority of whose Share
Capital with voting power, under ordinary circumstances, to elect directors is
at the time, directly or indirectly, owned by the Company, by one or more
subsidiaries of the Company or by the Company and one or more of its
subsidiaries or (ii) any other person (other than a corporation) in which the
Company, one or more of its subsidiaries, or the Company and one or more of its
subsidiaries, directly or indirectly, at the date of determination thereof, own
at least a majority ownership interest.

            "TIA" means the Trust Indenture Act of 1939 (15 U.S. Code Sections
77aaa-77bbbb) as amended and in effect from time to time, except as provided in
Section 9.03 of this Indenture.

            "TRADING DAY" means any day during which all of the following
conditions are satisfied: (i) trading in the ADSs generally occurs; (ii) there
is no Market Disruption Event; and (iii) a closing sale price for the ADSs is
provided on the New York Stock Exchange or, if the ADSs are

                                       -5-
<PAGE>

not then listed on the New York Stock Exchange, on the principal other U.S.
national securities exchange on which the ADSs are then listed.

            "TRADING PRICE" means, on any date, the average of the secondary
market bid quotations for the Securities obtained by the Bid Solicitation Agent
on behalf of the Company for five million dollars ($5,000,000) principal amount
of Securities at approximately 4:00 p.m., New York City time, on such date, from
three (3) independent, nationally recognized securities dealers selected by the
Company, which may include any or all of the Initial Purchasers or their
Affiliates; provided, that if the Bid Solicitation Agent on behalf of the
Company can reasonably obtain only two (2) such bids, then the average of such
two (2) bids shall instead be used; provided further, that if the Bid
Solicitation Agent on behalf of the Company can reasonably obtain only one (l)
such bid, then such bid shall instead be used; provided further, that if, on a
given date, the Bid Solicitation Agent on behalf of the Company cannot
reasonably obtain at least one (1) such bid, or if, in reasonable, good faith
judgment of the Board of Directors, which judgment shall be described in a Board
Resolution, the bid quotation or quotations so obtained by the Bid Solicitation
Agent on behalf of the Company are not indicative of the secondary market value
of the Securities, then, in each case, the Trading Price per $1,000 principal
amount of Securities on such date shall be deemed to be equal to the product of
(I) the Conversion Rate in effect on such date and (II) 97% of the Closing Sale
Price on such date.

            "TRUSTEE" means the party named as such in this Indenture until a
successor replaces it in accordance with the provisions hereof and thereafter
means the successor serving hereunder.

            "VOTING SHARE" of any Person means the total voting power of all
classes of the Share Capital of such Person.

            "VOTING SHARE CHANGE MAKE-WHOLE FUNDAMENTAL CHANGE" means any
"person" or "group" (as those terms are used in Sections 13(d) and 14(d) of the
Exchange Act), other than Dr. Zhengrong Shi, is or becomes the "beneficial
owner" (as that term is used in Rule 13d-3 under the Exchange Act), directly or
indirectly, of 50% or more of the Voting Shares of the Company, or if Dr.
Zhengrong Shi or any "group" (as that term is used in Sections 13(d) or 14(d) of
the Exchange Act) of which he is a part is or becomes the "beneficial owner" (as
such term is used in Rule 13d-3 under the Exchange Act), directly or indirectly,
of 60% or more of the Voting Shares of the Company.

      1.02 OTHER DEFINITIONS.

<TABLE>
<CAPTION>
           Term                                                   Defined In Section
           ----                                                   ------------------
<S>                                                               <C>
"ACQUIRER STOCK CONVERSION RIGHT ADJUSTMENT"....................         10.14
"ACQUISITION OF VOTING CONTROL" ................................          3.10
"ADDITIONAL AMOUNTS"............................................         10.03
"ADJUSTMENT DETERMINATION DATE".................................         10.05
"ADJUSTMENT EVENT"..............................................         10.05
"AGGREGATE AMOUNT"..............................................         10.05
"APPLICABLE INCREASE"...........................................         10.14
"APPLICABLE PRICE"..............................................         10.14
"BANKRUPTCY LAW"................................................          6.01
"BCF ADJUSTMENT CAP"............................................         10.06
"BCF MAKE-WHOLE CAP"............................................         10.14
</TABLE>

                                       -6-
<PAGE>

<TABLE>
<S>                                                                      <C>
"BUSINESS DAY"..................................................         12.07
"CASH AMOUNT"...................................................         10.02
"CASH SETTLEMENT AVERAGING PERIOD"..............................         10.02
"CHANGE IN CONTROL".............................................          3.10
"CONVERSION AGENT"..............................................          2.03
"CONVERSION AMOUNT".............................................         10.02
"CONVERSION DATE"...............................................         10.02
"CONVERSION OBLIGATION".........................................         10.02
"CONVERSION SETTLEMENT DATE"....................................         10.02
"CONVERSION SETTLEMENT DISTRIBUTION"............................         10.02
"CONVERSION VALUE"..............................................         10.01
"CPDI REGULATIONS"..............................................         11.01
"CUSTODIAN".....................................................          6.01
"DAILY CONVERSION VALUE"........................................         10.02
"DAILY NET SHARES"..............................................         10.02
"DAILY PRINCIPAL RETURN"........................................         10.02
"DAILY VWAP"....................................................         10.02
"DETERMINATION DATE"............................................         10.05
"DISTRIBUTED PROPERTY"..........................................         10.05
"DISTRIBUTION DATE".............................................         10.05
"EFFECTIVE DATE"................................................         10.14
"EVENT OF DEFAULT"..............................................          6.01
"EX DATE".......................................................         10.05
"EXPIRATION DATE"...............................................         10.05
"EXPIRATION TIME"...............................................         10.05
"FUNDAMENTAL CHANGE"............................................          3.10
"FUNDAMENTAL CHANGE NOTICE".....................................          3.10
"FUNDAMENTAL CHANGE REPURCHASE DATE"............................          3.10
"FUNDAMENTAL CHANGE REPURCHASE PRICE"...........................          3.10
"FUNDAMENTAL CHANGE REPURCHASE RIGHT"...........................          3.10
"GLOBAL SECURITY"...............................................          2.01
"INTEREST"......................................................          1.04
"JUDGMENT CURRENCY".............................................         12.12
"LEGAL HOLIDAY".................................................         12.07
"LISTED SHARE BUSINESS COMBINATION".............................          3.10
"MAKE-WHOLE APPLICABLE INCREASE"................................         10.14
"MAKE-WHOLE CONVERSION PERIOD"..................................         10.14
"MAKE-WHOLE CONSIDERATION"......................................         10.14
"NET SHARES"....................................................         10.02
"NOTICE OF DEFAULT".............................................          6.01
"NOTE MEASUREMENT PERIOD".......................................         10.01
"OPTION PURCHASE DATE"..........................................          3.09
"OPTION PURCHASE NOTICE"........................................          3.09
</TABLE>

                                       -7-
<PAGE>

<TABLE>
<S>                                                                      <C>
"OPTION PURCHASE PRICE".........................................          3.09
"PARTICIPANTS"..................................................          2.15
"PAYING AGENT"..................................................          2.03
"PHYSICAL SECURITIES"...........................................          2.01
"PRINCIPAL RETURN"..............................................         10.02
"PRIVATE PLACEMENT LEGEND"......................................          2.17
"PURCHASE AT HOLDER'S OPTION"...................................          3.01
"PURCHASED SHARES"..............................................         10.05
"RECORD DATE"...................................................         10.05
"REDEMPTION"....................................................          3.01
"REFERENCE PROPERTY"............................................         10.11
"RELEVANT DATE".................................................         10.05
"RELEVANT TAXING JURISDICTION"..................................         10.03
"REGISTRAR".....................................................          2.03
"REPURCHASE UPON FUNDAMENTAL CHANGE"............................          3.01
"RESALE RESTRICTION TERMINATION DATE"...........................          2.17
"RIGHTS"........................................................         10.05
"SETTLEMENT NOTICE PERIOD"......................................         10.02
"SPIN-OFF"......................................................         10.05
"TAX LEGEND"....................................................          2.17
"TERMINATION OF TRADING"........................................          3.10
"TRADING PRICE CONDITION".......................................         10.01
"UNDERLYING SHARES".............................................         10.05
"VWAP MARKET DISRUPTION EVENT"..................................         10.02
"VWAP TRADING DAY"..............................................         10.02
</TABLE>

      1.03 INCORPORATION BY REFERENCE OF TRUST INDENTURE ACT.

            Whenever this Indenture refers to a provision of the TIA, the
provision is incorporated by reference in and made a part of this Indenture.

            The following TIA terms used in this Indenture have the following
meanings:

            "COMMISSION" means the SEC;

            "INDENTURE SECURITIES" means the Securities;

            "INDENTURE SECURITY HOLDER" means a Securityholder or a Holder;

            "INDENTURE TO BE QUALIFIED" means this Indenture;

            "INDENTURE  TRUSTEE" or "INSTITUTIONAL TRUSTEE" means the Trustee;
              and

            "OBLIGOR" on the indenture securities means the Company or any
              successor.

            All other terms used in this Indenture that are defined by the TIA,
defined by the TIA by reference to another statute or defined by SEC rule under
the TIA and not otherwise defined herein have the meanings so assigned to them.

                                       -8-
<PAGE>

      1.04 RULES OF CONSTRUCTION.

            Unless the context otherwise requires:

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

                  (ii) an accounting term not otherwise defined has the meaning
            assigned to it in accordance with U.S. generally accepted accounting
            principles in effect from time to time;

                  (iii) "or" is not exclusive;

                  (iv) "including" means "including without limitation";

                  (v) words in the singular include the plural and in the plural
            include the singular;

                  (vi) provisions apply to successive events and transactions;

                  (vii) the term "INTEREST" includes additional interest, unless
            the context otherwise requires or the terms of the Registration
            Rights Agreement provide otherwise;

                  (viii) "herein," "hereof" and other words of similar import
            refer to this Indenture as a whole and not to any particular
            Article, Section or other subdivision of this Indenture; and

                  (ix) references to currency shall mean the lawful currency of
            the United States of America, unless the context requires otherwise.

                               II. THE SECURITIES

      2.01 FORM AND DATING.

            The Securities and the Trustee's certificate of authentication shall
be substantially in the form set forth in EXHIBIT A, which is incorporated in
and forms a part of this Indenture. The Securities may have notations, legends
or endorsements required by law, stock exchange rule or usage, provided such
notations, legends or endorsements are in form reasonably acceptable to the
Company. Each Security shall be dated the date of its authentication.

            Securities offered and sold in reliance on Rule 144A shall be issued
initially in the form of one or more Global Securities, substantially in the
form set forth in EXHIBIT A (the "GLOBAL SECURITY"), deposited with the Trustee,
as custodian for the Depositary, registered in the name of the Depositary or a
nominee thereof, duly executed by the Company and authenticated by the
Securities Agent as hereinafter provided and bearing the legends set forth in
EXHIBITS B-1, B-2 and B-3. The aggregate principal amount of the Global Security
may from time to time be increased or decreased by adjustments made on the
records of the Trustee, as custodian for the

                                       -9-
<PAGE>

Depositary, as hereinafter provided; provided, that in no event shall the
aggregate principal amount of the Global Security or Securities exceed
$500,000,000.

            Securities issued in exchange for interests in a Global Security
pursuant to SECTION 2.15 may be issued in the form of permanent certificated
Securities in registered form in substantially the form set forth in EXHIBIT A
(the "PHYSICAL SECURITIES") and, if applicable, bearing any legends required by
SECTION 2.17.

      2.02 EXECUTION AND AUTHENTICATION.

            One duly authorized Officer shall sign the Securities for the
Company by manual or facsimile signature.

            A Security's validity shall not be affected by the failure of an
Officer whose signature is on such Security to hold, at the time the Security is
authenticated, the same office at the Company.

            A Security shall not be valid until authenticated by the manual
signature of the Trustee. The signature shall be conclusive evidence that the
Security has been authenticated under this Indenture.

            Upon receipt of a Company Order, the Trustee shall authenticate
Securities for original issue in the aggregate principal amount of $500,000,000.
The aggregate principal amount of the Securities outstanding at any time may not
exceed $500,000,000.

            Upon receipt of a Company Order, the Trustee shall authenticate
Securities not bearing the Private Placement Legend to be issued to the
transferee when sold pursuant to an effective registration statement under the
Securities Act as set forth in SECTION 2.16(B).

            The Trustee shall act as the initial authenticating agent.
Thereafter, the Trustee may appoint an authenticating agent acceptable to the
Company to authenticate Securities. An authenticating agent may authenticate
Securities whenever the Trustee may do so. Each reference in this Indenture to
authentication by the Trustee includes authentication by such authenticating
agent. An authenticating agent so appointed has the same rights as the Trustee
to deal with the Company and its Affiliates.

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

      2.03 REGISTRAR, PAYING AGENT AND CONVERSION AGENT.

            The Company shall maintain, or shall cause to be maintained, (i) an
office or agency in the Borough of Manhattan, The City of New York, where
Securities may be presented for registration of transfer or for exchange
("REGISTRAR"), (ii) an office or agency in the Borough of Manhattan, The City of
New York, where Securities may be presented for payment ("PAYING AGENT") and
(iii) an office or agency in the Borough of Manhattan, The City of New York,
where Securities may be presented for conversion ("CONVERSION AGENT"). The
Registrar shall keep a register of the Securities and of their transfer and
exchange. The Company may appoint

                                       -10-
<PAGE>

or change one or more co-Registrars, one or more additional paying agents and
one or more additional conversion agents without notice and may act in any such
capacity on its own behalf. The term "REGISTRAR" includes any co-Registrar; the
term "PAYING AGENT" includes any additional paying agent; and the term
"CONVERSION AGENT" includes any additional conversion agent.

            The Company shall enter into an appropriate agency agreement with
any agent not a party to this Indenture. The agreement shall implement the
provisions of this Indenture that relate to such agent. The Company shall notify
the Trustee and the Securities Agent of the name and address of any such agent
not a party to this Indenture. If the Company fails to maintain a Registrar,
Paying Agent or Conversion Agent, the Trustee shall act as such.

            The Company initially appoints the Securities Agent as Paying Agent,
Bid Solicitation Agent, Registrar and Conversion Agent.

            The Company initially appoints The Depositary Trust Company to act
as Depositary with respect to the Securities.

      2.04 PAYING AGENT TO HOLD MONEY IN TRUST.

            Each Paying Agent shall hold in trust for the benefit of the
Securityholders or the Trustee all moneys held by the Paying Agent for the
payment of the Securities, and shall notify the Trustee of any Default by the
Company in making any such payment. While any such Default continues, the
Trustee may require a Paying Agent to pay all money held by it to the Trustee.
The Company at any time may require a Paying Agent to pay all money held by it
to the Trustee and account for any funds so paid by it. Upon payment over to the
Trustee, the Paying Agent shall have no further liability for such money. If the
Company acts as Paying Agent, it shall segregate and hold as a separate trust
fund all money held by it as Paying Agent.

      2.05 SECURITYHOLDER LISTS.

            The Securities Agent shall preserve in as current a form as is
reasonably practicable the most recent list available to it of the names and
addresses of Securityholders. If the Securities Agent is not the Registrar, the
Company shall furnish, or shall cause to be furnished, to the Trustee and the
Securities Agent on or before each interest payment date and at such other times
as the Trustee or the Securities Agent may request in writing a list, in such
form and as of such date as the Trustee or the Securities Agent, as the case may
be, may reasonably require, of the names and addresses of Securityholders
appearing in the security register of the Registrar.

      2.06 TRANSFER AND EXCHANGE.

            Subject to SECTIONS 2.15 and 2.16 hereof, where Securities are
presented to the Registrar with a request to register their transfer or to
exchange them for an equal principal amount of Securities of other authorized
denominations, the Registrar shall register the transfer or make the exchange if
its requirements for such transaction are met. To permit registrations of
transfer and exchanges, the Trustee shall authenticate Securities upon the
Trustee's receipt of a Company Order therefor. The Company or the Securities
Agent, as the case may be, shall not be required to register the transfer of or
exchange any Security (i) for a period of twenty (20) days before

                                       -11-
<PAGE>

selecting, pursuant to SECTION 3.03, Securities to be redeemed or (ii) during a
period beginning at the opening of business twenty (20) days before the mailing
of a notice of redemption of the Securities selected for Redemption under
SECTION 3.04 and ending at the close of business on the day of such mailing or
(iii) that has been selected for Redemption or for which a Purchase Notice has
been delivered, and not withdrawn, in accordance with this Indenture, except the
unredeemed or unrepurchased portion of Securities being redeemed or repurchased
in part.

            No service charge shall be made for any transfer or exchange of
Securities, except that the Company or the Securities Agent may require payment
of a sum sufficient to cover any tax or similar governmental charge that may be
imposed in connection with any transfer, exchange or conversion of Securities,
other than exchanges pursuant to SECTIONS 2.10, 9.05 or 10.02, or ARTICLE III,
not involving any transfer.

      2.07 REPLACEMENT SECURITIES.

            If the Holder of a Security claims that the Security has been
mutilated, lost, destroyed or wrongfully taken, the Company shall issue and the
Trustee shall, upon receipt of a Company Order, authenticate a replacement
Security upon surrender to the Trustee of the mutilated Security, or upon
delivery to the Trustee of evidence of the loss, destruction or theft of the
Security satisfactory to the Trustee and the Company. In the case of a lost,
destroyed or wrongfully taken Security, if required by the Trustee or the
Company, an indemnity bond must be provided by the Holder that is reasonably
satisfactory to the Securities Agent, the Trustee and the Company to indemnify
and hold harmless the Company, the Trustee and the Securities Agent from any
loss which any of them may suffer if such Security is replaced. The Securities
Agent, Trustee and the Company may charge such Holder for their expenses in
replacing a Security.

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

            Every replacement Security is an additional obligation of the
Company only as provided in SECTION 2.08.

      2.08 OUTSTANDING SECURITIES.

            Securities outstanding at any time are all the Securities
authenticated by the Trustee except for those converted, those cancelled by it,
those delivered to it for cancellation and those described in this SECTION 2.08
as not outstanding. Except to the extent provided in SECTION 2.09, a Security
does not cease to be outstanding because the Company or one of its Subsidiaries
or Affiliates holds the Security.

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

            If the Paying Agent (other than the Company) holds on the Option
Purchase Date, Redemption Date, Fundamental Change Repurchase Date or Maturity
Date, money sufficient to pay the aggregate Option Purchase Price, Redemption
Price, Fundamental Change Repurchase

                                       -12-
<PAGE>

Price or principal amount, as the case may be, with respect to all Securities to
be redeemed, purchased or paid upon Purchase at Holder's Option, Redemption,
Repurchase Upon Fundamental Change or maturity, as the case may be, in each case
plus, if applicable, accrued and unpaid interest, if any, payable as herein
provided upon Purchase at Holder's Option, Redemption, Repurchase Upon
Fundamental Change or maturity, then (unless there shall be a Default in the
payment of such aggregate Option Purchase Price, Redemption Price, Fundamental
Change Repurchase Price or principal amount, or of such accrued and unpaid
interest), except as otherwise provided herein, on and after such date such
Securities shall be deemed to be no longer outstanding, interest on such
Securities shall cease to accrue, and such Securities shall be deemed paid
whether or not such Securities are delivered to the Paying Agent. Thereafter,
all rights of the Holders of such Securities shall terminate with respect to
such Securities, other than the right to receive the Option Purchase Price,
Redemption Price, Fundamental Change Repurchase Price or principal amount, as
the case may be, plus, if applicable, such accrued and unpaid interest, in
accordance with this Indenture. Notwithstanding the foregoing, a Holder shall be
entitled to convert a Security on the Maturity Date, provided such Security has
not been surrendered for payment upon maturity.

            If a Security is converted in accordance with ARTICLE X, then, from
and after the time of such conversion on the Conversion Date, such Security
shall cease to be outstanding, and interest, if any, shall cease to accrue on
such Security unless there shall be a Default in the payment or delivery of the
consideration payable hereunder upon such conversion.

      2.09 SECURITIES HELD BY THE COMPANY OR AN AFFILIATE.

            In determining whether the Holders of the required aggregate
principal amount of Securities have concurred in any direction, waiver or
consent, Securities owned by the Company or any of its Subsidiaries or
Affiliates shall be considered as though not outstanding, except that, for the
purposes of determining whether a Responsible Officer of the Trustee or the
Securities Agent, as applicable, shall be protected in relying on any such
direction, waiver or consent, only Securities which the Trustee or the
Securities Agent, as applicable, knows are so owned shall be so disregarded.
Securities so owned which have been pledged in good faith may be considered to
be outstanding for purposes of this SECTION 2.09 if the pledgee establishes, to
the satisfaction of the Trustee or the Securities Agent, as applicable, the
pledgee's right so to concur with respect to such Securities and that the
pledgee is not, and is not acting at the direction or on behalf of, the Company,
any other obligor on the Securities, an Affiliate of the Company or an affiliate
of any such other obligor. In the event of a dispute or uncertainty as to
whether the pledgee has established the foregoing, the Trustee and the
Securities Agent may rely on the advice of counsel or on an Officer's
Certificate.

      2.10 TEMPORARY SECURITIES.

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

                                       -13-
<PAGE>

Securities. Until so exchanged, each temporary Security shall in all respects be
entitled to the same benefits under this Indenture as definitive Securities, and
such temporary Security shall be exchangeable for definitive Securities in
accordance with the terms of this Indenture.

      2.11 CANCELLATION.

            The Company at any time may deliver Securities to the Trustee for
cancellation. The Registrar, Paying Agent and Conversion Agent shall forward to
the Trustee any Securities surrendered to them for transfer, exchange, payment
or conversion. The Trustee shall promptly cancel all Securities surrendered for
transfer, exchange, payment, conversion or cancellation in accordance with its
customary procedures. The Company may not issue new Securities to replace
Securities that it has paid or delivered to the Trustee for cancellation or that
any Securityholder has converted pursuant to ARTICLE X. All cancelled Securities
held by the Trustee shall be destroyed, and certification of their destruction
shall be delivered by the Trustee to the Company unless the Company shall, by a
Company Order, direct that cancelled Securities be returned to it.

      2.12 DEFAULTED INTEREST.

            If and to the extent the Company defaults in a payment of interest
on the Securities, the Company shall pay in cash the defaulted interest in any
lawful manner plus, to the extent not prohibited by applicable statute or case
law, interest on such defaulted interest at the rate provided in the Securities.
The Company may pay the defaulted interest (plus interest on such defaulted
interest) to the persons who are Securityholders on a subsequent special record
date. The Company shall fix such record date and payment date. At least fifteen
(15) calendar days before the record date, the Company shall mail to the Trustee
and Securityholders a notice that states the record date, payment date and
amount of interest to be paid. Upon the due payment in full, interest shall no
longer accrue on such defaulted interest pursuant to this SECTION 2.12.

      2.13 CUSIP NUMBERS.

            The Company in issuing the Securities may use one or more "CUSIP"
numbers, and, if so, the Trustee and the Securities Agent shall use the CUSIP
numbers in notices of redemption or exchange as a convenience to Holders;
provided, however, that no representation is hereby deemed to be made by the
Trustee or the Securities Agent as to the correctness or accuracy of the CUSIP
numbers printed on the notice or on the Securities; provided further, that
reliance may be placed only on the other identification numbers printed on the
Securities, and the effectiveness of any such notice shall not be affected by
any defect in, or omission of, such CUSIP numbers. The Company shall promptly
notify the Trustee and the Securities Agent of any change in the CUSIP numbers.

      2.14 DEPOSIT OF MONEYS.

            Prior to 10:00 A.M., New York City time, on each interest payment
date, Maturity Date, Redemption Date, Option Purchase Date or Fundamental Change
Repurchase Date, the Company shall have deposited with a Paying Agent (or, if
the Company is acting as its own Paying Agent, segregate and hold in trust in
accordance with SECTION 2.04) money, in funds immediately available on such
date, sufficient to make cash payments, if any, due on such

                                       -14-
<PAGE>

interest payment date, Maturity Date, Redemption Date, Option Purchase Date or
Fundamental Change Repurchase Date, as the case may be, in a timely manner which
permits the Paying Agent to remit payment to the Holders on such interest
payment date, Maturity Date, Redemption Date, Option Purchase Date or
Fundamental Change Repurchase Date, as the case may be.

      2.15 BOOK-ENTRY PROVISIONS FOR GLOBAL SECURITIES.

            (A) The Global Securities initially shall (i) be registered in the
name of the Depositary or the nominee of the Depositary, (ii) be delivered to
the Trustee as custodian for the Depositary and (iii) bear legends as set forth
in SECTION 2.17.

            Members of, or participants in, the Depositary ("PARTICIPANTS")
shall have no rights under this Indenture with respect to any Global Security
held on their behalf by the Depositary, or the Trustee as its custodian, or
under the Global Security, and the Depositary may be treated by the Company, the
Trustee and the Securities Agent and any agent of the Company, the Trustee and
the Securities Agent as the absolute owner of the Global Security for all
purposes whatsoever and the beneficial owners of the Securities will be entitled
only to those rights and benefits afforded to them in accordance with the
Depositary's regular operating procedures. Notwithstanding the foregoing,
nothing herein shall prevent the Company, the Trustee, the Securities Agent or
any agent of the Company, the Trustee or the Securities Agent from giving effect
to any written certification, proxy or other authorization furnished by the
Depositary, or its nominee, as the case may be, or impair, as between the
Depositary and Participants, the operation of customary practices governing the
exercise of the rights of a Holder of any Security.

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

            (C) In connection with the transfer of a Global Security in its
entirety to beneficial owners pursuant to SECTION 2.15(B), such Global Security
shall be deemed to be surrendered to the Trustee for cancellation, and the
Company shall execute, and the Trustee shall upon receipt of a Company Order
authenticate and deliver, to each beneficial owner identified by the Depositary
in exchange for its beneficial interest in such Global Security, an equal
aggregate principal amount of Physical Securities of authorized denominations.

            (D) Any Physical Security constituting a Restricted Security
delivered in exchange for an interest in a Global Security pursuant to SECTION
2.15(B) shall, except as otherwise provided by SECTION 2.16, bear the Private
Placement Legend.

                                       -15-
<PAGE>

            (E) The Holder of any Global Security may grant proxies and
otherwise authorize any Person, including Participants and Persons that may hold
interests through Participants, to take any action which a Holder is entitled to
take under this Indenture or the Securities.

            (F) Notwithstanding any other provisions in this Indenture, so long
as a security is a Global Security, the parties hereto will be bound at all
times by the applicable procedures of the Depositary with respect to such
Security.

      2.16 SPECIAL TRANSFER PROVISIONS.

            (A) RESTRICTIONS ON TRANSFER AND EXCHANGE OF GLOBAL SECURITIES.
Notwithstanding any other provisions of this Indenture, but except as provided
in SECTION 2.15(B), a Global Security may not be transferred except as a whole
by the Depositary to a nominee of the Depositary or by a nominee of the
Depositary to the Depositary or another nominee of the Depositary or by the
Depositary or any such nominee to a successor Depositary or a nominee of such
successor Depositary.

            (B) PRIVATE PLACEMENT LEGEND. Upon the transfer, exchange or
replacement of Securities not bearing the Private Placement Legend, the
Registrar or co-Registrar shall deliver Securities that do not bear the Private
Placement Legend. Upon the transfer, exchange or replacement of Securities
bearing the Private Placement Legend, the Registrar or co-Registrar shall
deliver only Securities that bear the Private Placement Legend unless (i) the
requested transfer is after the Resale Restriction Termination Date, (ii) there
is delivered to the Trustee, the Securities Agent and the Company an opinion of
counsel reasonably satisfactory to the Company and addressed to the Company to
the effect that neither such legend nor the related restrictions on transfer are
required in order to maintain compliance with the provisions of the Securities
Act or (iii) such Security has been sold pursuant to an effective registration
statement under the Securities Act and the Holder selling such Securities has
delivered to the Registrar or co-Registrar a notice in the form of EXHIBIT C
hereto. Upon the effectiveness, under the Securities Act, of the "Shelf
Registration Statement" (as defined in the Registration Rights Agreement), the
Company shall deliver to the Trustee and the Securities Agent a notice of
effectiveness, a Global Security or Global Securities, which do not bear the
Private Placement Legend, a Company Order and an Opinion of Counsel in the form
of EXHIBIT D hereto, and, if required by the Depositary, the Company shall
deliver to the Depositary a letter of representations in a form reasonably
acceptable to the Depositary. Upon the effectiveness of any post-effective
amendment to the "Shelf Registration Statement" (as defined in the Registration
Rights Agreement) and upon the effectiveness, under the Securities Act, of any
"Subsequent Shelf Registration Statement" (as defined in the Registration Rights
Agreement), the Company shall deliver to the Trustee and the Securities Agent a
notice of effectiveness and an Opinion of Counsel in the form of EXHIBIT D
hereto. Upon any sale, pursuant to a Shelf Registration Statement, of a
beneficial interest in a Global Security that theretofore constituted a
Restricted Security and delivery of appropriate evidence thereof to the Trustee
and the Securities Agent, and upon any sale or transfer of a beneficial interest
in connection with which the Private Placement Legend will be removed in
accordance with this Indenture, the Trustee shall increase the principal amount
of the Global Security that does not constitute a Restricted Security by the
principal amount of such sale or transfer and likewise reduce the principal
amount of the Global Security that does constitute a Restricted Security.

                                       -16-
<PAGE>

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

            The Registrar shall retain copies of all letters, notices and other
written communications received pursuant to SECTION 2.15 or this SECTION 2.16.
The Company shall have the right to inspect and make copies of all such letters,
notices or other written communications at any reasonable time upon the giving
of reasonable written notice to the Registrar.

            (D) TRANSFERS OF SECURITIES HELD BY AFFILIATES. Any certificate (i)
evidencing a Security that has been transferred to an Affiliate within two (2)
years after the Issue Date, as evidenced by a notation on the assignment form
for such transfer or in the representation letter delivered in respect thereof
or (ii) evidencing a Security that has been acquired from an Affiliate (other
than by an Affiliate) in a transaction or a chain of transactions not involving
any public offering, shall, until two (2) years after the last date on which the
Company or any Affiliate was an owner of such Security (or such longer period of
time as may be required under the Securities Act or applicable state securities
laws), in each case, bear the Private Placement Legend, unless otherwise agreed
by the Company (with written notice thereof to the Trustee and the Securities
Agent).

      2.17 RESTRICTIVE LEGENDS.

            Each Global Security and Physical Security that constitutes a
Restricted Security shall bear the legend (the "PRIVATE PLACEMENT LEGEND") as
set forth in EXHIBIT B-1 on the face thereof until after the second anniversary
of the later of (i) the Issue Date and (ii) the last date on which the Company
or any Affiliate was the owner of such Security (or any predecessor security)
(or such shorter period of time as permitted by Rule 144(k) under the Securities
Act or any successor provision thereunder) (or such longer period of time as may
be required under the Securities Act or applicable state securities laws, as set
forth in an Opinion of Counsel, unless otherwise agreed between the Company and
the Holder thereof) (such date, the "RESALE RESTRICTION TERMINATION DATE").

            Each Global Security shall also bear the legend as set forth in
EXHIBIT B-2.

      2.18 RANKING.

            The indebtedness of the Company arising under or in connection with
this Indenture and every outstanding Security issued under this Indenture from
time to time constitutes and will constitute a senior unsecured obligation of
the Company, ranking equally with other existing and future senior unsecured
indebtedness of the Company and ranking senior to any existing or future
subordinated indebtedness of the Company.

                         III. REDEMPTION AND REPURCHASE

      3.01 RIGHT OF REDEMPTION.

                                       -17-
<PAGE>

            (A) Redemption of the Securities, as permitted by any provision of
this Indenture, shall be made:

                  (i) with respect to a repurchase at the Company's option, in
            accordance with PARAGRAPHS 6 AND 7 of the Securities (a
            "REDEMPTION"),

                  (ii) with respect to a repurchase at the Holder's option, in
            accordance with PARAGRAPH 8 of the Securities (a "PURCHASE AT
            HOLDER'S OPTION") and

                  (iii) with respect to any repurchase upon a Fundamental
            Change, in accordance with PARAGRAPH 9 of the Securities (a
            "REPURCHASE UPON FUNDAMENTAL CHANGE"),

            in each case in accordance with the applicable provisions of this
      ARTICLE III.

            (B) The Company will comply with all federal and state securities
laws, and the applicable laws of any foreign jurisdiction, in connection with
any offer to sell or solicitations of offers to buy Securities pursuant to this
ARTICLE III.

            (C) The Company shall have the right, at the Company's option, at
any time, and from time to time, on a Redemption Date on or after February 15,
2010, to redeem all or any part of the Securities at a price payable in cash
equal to the Redemption Price plus accrued and unpaid interest, if any, to, but
excluding, the Redemption Date; provided, however, that (1) the Closing Sale
Price for at least twenty (20) Trading Days in the thirty (30) consecutive
Trading Day period ending on the date one (1) Trading Day prior to any day the
Company gives a notice of Redemption is greater than one hundred and thirty
percent (130%) of the applicable Conversion Price of the Securities, on the date
of such notice and (2) that in no event shall any Redemption Date be a Legal
Holiday; provided further, that if the Redemption Date with respect to a
Security is after a record date for the payment of an installment of interest
and on or before the related interest payment date, then accrued and unpaid
interest to, but excluding, such interest payment date shall be paid, on such
interest payment date, to the Holder of record of such Security at the close of
business on such record date, and the Holder surrendering such Security for
Redemption shall not be entitled to any such interest unless such Holder was
also the Holder of record of such Securities at the close of business on such
record date.

            (D) Securities in denominations larger than $1,000 principal amount
may be redeemed in part but only in integral multiples of $1,000 principal
amount.

      3.02 NOTICES TO TRUSTEE AND THE SECURITIES AGENT.

            If the Company elects to redeem Securities pursuant to PARAGRAPH 6
of the Securities, it shall notify the Trustee and the Securities Agent of the
Redemption Date, the applicable provision of this Indenture pursuant to which
the Redemption is to be made and the aggregate principal amount of Securities to
be redeemed, which notice shall be provided to the Trustee and the Securities
Agent by the Company at least fifteen (15) days prior to the mailing, in
accordance with SECTION 3.04, of the notice of Redemption (unless a shorter
notice period shall be satisfactory to the Trustee and the Securities Agent).

      3.03 SELECTION OF SECURITIES TO BE REDEEMED.

                                       -18-
<PAGE>

            If the Company has elected to redeem less than all of the Securities
pursuant to PARAGRAPH 6 of the Securities, the Securities Agent shall, promptly
after receiving the notice specified in SECTION 3.02, select the Securities to
be redeemed by lot, on a pro rata basis or in accordance with any other method
the Trustee considers fair and appropriate. The Trustee shall make such
selection from Securities then outstanding and not already to be redeemed by
virtue of having been previously called for Redemption. The Trustee may select
for Redemption portions of the principal amount of the Securities that have
denominations larger than $1,000 principal amount. Securities and portions of
them the Trustee selects for Redemption shall be in amounts of $1,000 principal
amount or integral multiples of $1,000 principal amount. The Trustee shall
promptly notify the Company in writing of the Securities selected for Redemption
and the principal amount thereof to be redeemed.

            The Registrar need not register the transfer of or exchange any
Securities that have been selected for Redemption, except the unredeemed portion
of the Securities being redeemed in part.

      3.04 NOTICE OF REDEMPTION.

            At least thirty (30) days but not more than sixty (60) days before a
Redemption Date, the Company shall mail, or cause to be mailed, by first-class
mail a notice of Redemption to each Holder whose Securities are to be redeemed,
at the address of such Holder appearing in the security register.

            The notice shall identify the Securities and the aggregate principal
amount thereof to be redeemed pursuant to the Redemption and shall state:

                  (i) the Redemption Date;

                  (ii) the Redemption Price plus accrued and unpaid interest, if
            any, to, but excluding, the Redemption Date;

                  (iii) the Conversion Rate and the Conversion Price;

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

                  (v) that the right to convert the Securities called for
            Redemption will terminate at the close of business on the third
            (3rd) Business Day immediately preceding the Redemption Date, unless
            there shall be a Default in the payment of the Redemption Price or
            accrued and unpaid interest, if any, payable as herein provided upon
            Redemption;

                  (vi) that Holders who want to convert Securities must satisfy
            the requirements of ARTICLE X;

                  (vii) the paragraph of the Securities pursuant to which the
            Securities are to be redeemed;

                                       -19-
<PAGE>

                  (viii) that Securities called for Redemption must be
            surrendered to the Paying Agent to collect the Redemption Price plus
            accrued and unpaid interest, if any, payable as herein provided upon
            Redemption;

                  (ix) that, unless there shall be a Default in the payment of
            the Redemption Price or accrued and unpaid interest, if any, payable
            as herein provided upon Redemption (including, where the Redemption
            Date is after a record date for the payment of an installment of
            interest and on or before the related interest payment date, the
            payment, on such interest payment date, of accrued and unpaid
            interest to, but excluding, such interest payment date to the Holder
            of record at the close of business on such record date), interest on
            Securities called for Redemption ceases to accrue on and after the
            Redemption Date, except as otherwise provided herein, such
            Securities will cease to be convertible after the close of business
            on the third (3rd) Business Day immediately preceding the Redemption
            Date, and all rights of the Holders of such Securities shall
            terminate on and after the Redemption Date, other than the right to
            receive, upon surrender of such Securities and in accordance with
            this Indenture, the amounts due hereunder on such Securities upon
            Redemption (and the rights of the Holder(s) of record of such
            Securities to receive, on the applicable interest payment date,
            accrued and unpaid interest in accordance herewith in the event the
            Redemption Date is after a record date for the payment of an
            installment of interest and on or before the related interest
            payment date); and

                  (x) the CUSIP number or numbers, as the case may be, of the
            Securities.

            The right, pursuant to ARTICLE X, to convert Securities called for
Redemption shall terminate at the close of business on the third (3rd) Business
Day immediately preceding the Redemption Date, unless there shall be a Default
in the payment of the Redemption Price or accrued and unpaid interest, if any,
payable as herein provided upon Redemption.

            At the Company's request, upon reasonable prior written notice, the
Trustee shall mail the notice of Redemption in the Company's name and at the
Company's expense; provided, however, that the form and content of such notice
shall be prepared by the Company.

      3.05 EFFECT OF NOTICE OF REDEMPTION.

            Once notice of Redemption is mailed, Securities called for
Redemption become due and payable on the Redemption Date at the consideration
set forth herein, and, on and after such Redemption Date (unless there shall be
a Default in the payment of such consideration), except as otherwise provided
herein, such Securities shall cease to bear interest, and all rights of the
Holders of such Securities shall terminate, other than the right to receive such
consideration upon surrender of such Securities to the Paying Agent.

            If any Security shall not be fully and duly paid in accordance
herewith upon Redemption, the principal of, and accrued and unpaid interest on,
such Security shall, until paid, bear interest at the rate borne by such
Security on the principal amount of such Security, and such Security shall
continue to be convertible pursuant to ARTICLE X.

                                       -20-
<PAGE>

            Notwithstanding anything herein to the contrary, there shall be no
purchase of any Securities pursuant to a Redemption if there has occurred (prior
to, on or after, as the case may be, the mailing of the notice of Redemption
specified in SECTION 3.04) and is continuing an Event of Default (other than a
Default in the payment of the consideration payable as herein provided upon
Redemption). The Paying Agent will promptly return to the respective Holders
thereof any Securities held by it during the continuance of such an Event of
Default.

      3.06 DEPOSIT OF REDEMPTION PRICE.

            Prior to 10:00 A.M., New York City time on the Redemption Date, the
Company shall deposit with a Paying Agent (or, if the Company is acting as its
own Paying Agent, segregate and hold in trust in accordance with SECTION 2.04)
money, in funds immediately available on the Redemption Date, sufficient to pay
the consideration payable as herein provided upon Redemption on all Securities
to be redeemed on that date. The Paying Agent shall return to the Company, as
soon as practicable, any money not required for that purpose.

      3.07 SECURITIES REDEEMED IN PART.

            Any Security to be submitted for Redemption only in part shall be
delivered pursuant to SECTION 3.05 (with, if the Company or the Trustee so
requires, due endorsement by, or a written instrument of transfer in form
satisfactory to the Company and the Trustee duly executed by, the Holder thereof
or its attorney duly authorized in writing, with a medallion guarantee), and the
Company shall execute, and the Trustee shall, upon receipt of a Company Order,
authenticate and make available for delivery to the Holder of such Security
without service charge, a new Security or Securities, of any authorized
denomination as requested by such Holder, of the same tenor and in aggregate
principal amount equal to the portion of such Security not submitted for
Redemption.

            If any Security selected for partial Redemption is converted in
part, the principal of such Security subject to Redemption shall be reduced by
the principal amount of such Security that is converted.

      3.08 [RESERVED].

      3.09 PURCHASE OF SECURITIES AT OPTION OF THE HOLDER.

            (A) At the option of the Holder thereof, the Securities (or portions
thereof that are integral multiples of $1,000 in principal amount) shall be
purchased by the Company pursuant to PARAGRAPH 8 of the Securities on February
15, 2010 (the "OPTION PURCHASE Date"), at a purchase price, payable in cash,
equal to one hundred percent (100%) of the principal amount of the Securities
(or such portions thereof) to be so purchased (the "OPTION PURCHASE PRICE"),
plus accrued and unpaid interest, if any, to, but excluding, the Option Purchase
Date (provided, that such accrued and unpaid interest shall be paid to the
Holder of record of such Securities at the close of business on the record date
immediately preceding the Option Purchase Date), upon:

                  (i) delivery to the Company (if it is acting as its own Paying
            Agent), or to a Paying Agent designated by the Company for such
            purpose in the Option Purchase Notice, by such Holder, at any time
            from the opening of business on the date that is

                                       -21-
<PAGE>

            twenty (20) Business Days prior to the Option Purchase Date until
            the close of business on the third (3rd) Business Day immediately
            preceding the Option Purchase Date, of a Purchase Notice, in the
            form set forth in the Securities or any other form of written notice
            substantially similar thereto, in each case, duly completed and
            signed, with appropriate signature guarantee, stating:

                        (a) the certificate number(s) of the Securities which
                  the Holder will deliver to be purchased, if such Securities
                  are in certificated form;

                        (b) the principal amount of Securities to be purchased,
                  which must be $1,000 or an integral multiple thereof; and

                        (c) that such principal amount of Securities are to be
                  purchased as of the Option Purchase Date pursuant to the terms
                  and conditions specified in PARAGRAPH 8 of the Securities and
                  in this Indenture; and

                  (ii) delivery to the Company (if it is acting as its own
            Paying Agent), or to a Paying Agent designated by the Company for
            such purpose in the Option Purchase Notice, at any time after
            delivery of such Purchase Notice, of such Securities (together with
            all necessary endorsements), such delivery being a condition to
            receipt by the Holder of the Option Purchase Price therefore plus
            accrued and unpaid interest, if any, payable as herein provided upon
            Purchase at Holder's Option (provided, however, that the Holder of
            record of such Securities on the record date immediately preceding
            the Option Purchase Date need not surrender such Securities in order
            to be entitled to receive, on the Option Purchase Date, the accrued
            and unpaid interest due thereon).

            If such Securities are held in book-entry form through the
Depositary, the Purchase Notice shall comply with applicable procedures of the
Depositary.

            Upon such delivery of Securities to the Company (if it is acting as
its own Paying Agent) or such Paying Agent, such Holder shall be entitled to
receive, upon request, from the Company or such Paying Agent, as the case may
be, a nontransferable receipt of deposit evidencing such delivery.

            Notwithstanding anything herein to the contrary, any Holder that has
delivered the Purchase Notice contemplated by this SECTION 3.09(A) to the
Company (if it is acting as its own Paying Agent) or to a Paying Agent
designated by the Company for such purpose in the Option Purchase Notice shall
have the right to withdraw such Purchase Notice by delivery, at any time prior
to the close of business on the third (3rd) Business Day immediately preceding
the Option Purchase Date, of a written notice of withdrawal to the Company (if
acting as its own Paying Agent) or the Paying Agent, which notice shall contain
the information specified in SECTION 3.09(B)(VII).

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

            (B) The Company shall give notice (the "OPTION PURCHASE NOTICE") on
a date not less than twenty (20) Business Days prior to the Option Purchase Date
to each Holder at its

                                       -22-
<PAGE>

address shown in the register of the Registrar and to each beneficial owner as
required by applicable law. Such notice shall state:

                  (i) the Option Purchase Price plus accrued and unpaid
            interest, if any, to, but excluding, the Option Purchase Date and
            the Conversion Rate;

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

                  (iii) that Securities with respect to which a Purchase Notice
            is given by a Holder may be converted pursuant to ARTICLE X, if
            otherwise convertible in accordance with ARTICLE X, only if such
            Purchase Notice has been withdrawn in accordance with this SECTION
            3.09 or if there shall be a Default in the payment of such Option
            Purchase Price or in accrued and unpaid interest, if any, payable as
            herein provided upon Purchase at Holder's Option;

                  (iv) that Securities (together with any necessary
            endorsements) must be surrendered to the Paying Agent to collect
            payment of the Option Purchase Price plus (if such Holder was the
            Holder of record of the applicable Security at the close of business
            on the record date immediately preceding the Option Purchase Date)
            accrued and unpaid interest, if any, payable as herein provided upon
            Purchase at Holder's Option;

                  (v) that the Option Purchase Price, plus accrued and unpaid
            interest, if any, to, but excluding, the Option Purchase Date, for
            any Security as to which a Purchase Notice has been given and not
            withdrawn will be paid as promptly as practicable, but in no event
            later than the third Business Day after the later of the Option
            Purchase Date or the time of delivery of the Security as described
            in CLAUSE (iv) above; provided, however, that such accrued and
            unpaid interest shall be paid, on the applicable interest payment
            date, to the Holder of record of such Security at the close of
            business on the record date immediately preceding the Option
            Purchase Date;

                  (vi) the procedures the Holder must follow to exercise rights
            under this SECTION 3.09 (including the name and address of the
            Paying Agent) and a brief description of those rights;

                  (vii) that a Holder will be entitled to withdraw its election
            in the Purchase Notice if the Company (if acting as its own Paying
            Agent) or the Paying Agent receives, at any time prior to the close
            of business on the third (3rd) Business Day immediately preceding
            the Option Purchase Date, or such longer period as may be required
            by law, a letter or telegram, telex or facsimile transmission
            (receipt of which is confirmed and promptly followed by a letter)
            setting forth (I) the name of such Holder, (II) a statement that
            such Holder is withdrawing its election to have Securities purchased
            by the Company on the Option Purchase Date pursuant to a Purchase at
            Holder's Option, (III) the certificate number(s) of such Securities
            to be so withdrawn, if such Securities are in certificated form,
            (IV) the principal amount of the Securities of such Holder to be so
            withdrawn, which amount must be $1,000 or an integral multiple
            thereof and (V) the principal amount, if any, of the Securities of
            such Holder that remain subject to the

                                       -23-
<PAGE>

            Purchase Notice delivered by such Holder in accordance with this
            SECTION 3.09, which amount must be $1,000 or an integral multiple
            thereof;

                  (viii) that on and after the Option Purchase Date (unless
            there shall be a Default in the payment of the consideration payable
            as herein provided upon a Purchase at Holder's Option), interest on
            Securities subject to Purchase at Holder's Option will cease to
            accrue, and all rights of the Holders of such Securities shall
            terminate, other than the right to receive, in accordance herewith,
            the consideration payable as herein provided upon a Purchase at
            Holder's Option; and

                  (ix) the CUSIP number or numbers, as the case may be, of the
            Securities.

            At the Company's request, upon reasonable prior written notice, the
Trustee shall mail such Option Purchase Notice in the Company's name and at the
Company's expense; provided, however, that the form and content of such Option
Purchase Notice shall be prepared by the Company.

            No failure of the Company to give an Option Purchase Notice shall
limit any Holder's right pursuant hereto to exercise its rights to require the
Company to purchase such Holder's Securities pursuant to a Purchase at Holder's
Option.

            (C) Subject to the provisions of this SECTION 3.09, the Company
shall pay, or cause to be paid, the Option Purchase Price, plus accrued and
unpaid interest, if any, to, but excluding, the Option Purchase Date, with
respect to each Security subject to Purchase at Holder's Option to the Holder
thereof as promptly as practicable, but in no event later than the third (3rd)
Business Day after the later of the Option Purchase Date and the time such
Security (together with all necessary endorsements) is surrendered to the Paying
Agent; provided, however, that such accrued and unpaid interest shall be paid,
on the applicable interest payment date, to the Holder of record of such
Security at the close of business on the record date immediately preceding the
Option Purchase Date.

            (D) Prior to 10:00 A.M., New York City time on the Option Purchase
Date, the Company shall deposit with a Paying Agent (or, if the Company is
acting as its own Paying Agent, segregate and hold in trust in accordance with
SECTION 2.04) money, in funds immediately available on the Option Purchase Date,
sufficient to pay the Option Purchase Price, plus accrued and unpaid interest,
if any, to, but excluding, the Option Purchase Date, of all of the Securities
that are to be purchased by the Company on the Option Purchase Date pursuant to
a Purchase at Holder's Option. The Paying Agent shall return to the Company, as
soon as practicable, any money not required for that purpose.

            (E) Once the Purchase Notice has been duly delivered in accordance
with this SECTION 3.09, the Securities to be purchased pursuant to the Purchase
at Holder's Option shall, on the Option Purchase Date, become due and payable in
accordance herewith, and, on and after such date (unless there shall be a
Default in the payment of the consideration payable as herein provided upon a
Purchase at Holder's Option), such Securities shall cease to bear interest, and
all rights of the Holders or such Securities shall terminate, other than the
right to receive, in accordance herewith, the such consideration.

                                       -24-
<PAGE>

            (F) Securities with respect to which a Purchase Notice has been duly
delivered in accordance with this SECTION 3.09 may be converted pursuant to
ARTICLE X, if otherwise convertible in accordance with ARTICLE X, only if such
Purchase Notice has been withdrawn in accordance with this SECTION 3.09 or if
there shall be a Default in the payment of the consideration payable as herein
provided upon a Purchase at Holder's Option.

            (G) If any Security subject to Purchase at Holder's Option shall not
be paid in accordance herewith, the principal of, and accrued and unpaid
interest on, such Security shall, until paid, bear interest, payable in cash, at
the rate borne by such Security on the principal amount of such Security, and
such Security shall continue to be convertible pursuant to ARTICLE X.

            (H) Any Security which is to be submitted for Purchase at Holder's
Option only in part shall be delivered pursuant to this SECTION 3.09 (with, if
the Company or the Securities Agent so requires, due endorsement by, or a
written instrument of transfer in form satisfactory to the Company and the
Trustee duly executed by, the Holder thereof or its attorney duly authorized in
writing, with a medallion guarantee), and the Company shall execute, and the
Trustee shall, upon receipt of a Company Order, authenticate and make available
for delivery to the Holder of such Security without service charge, a new
Security or Securities, of any authorized denomination as requested by such
Holder, of the same tenor and in aggregate principal amount equal to the portion
of such Security not submitted for Purchase at Holder's Option.

            (I) Notwithstanding anything herein to the contrary, there shall be
no purchase of any Securities pursuant to this SECTION 3.09 if there has
occurred (prior to, on or after, as the case may be, the giving, by the Holders
of such Securities, of the required Purchase Notice) and is continuing an Event
of Default (other than a Default in the payment of the consideration payable as
herein provided upon a Purchase at Holder's Option or a Default arising from the
Company's failure to provide the applicable Option Purchase Notice). The Paying
Agent will promptly return to the respective Holders thereof any Securities held
by it during the continuance of an Event of Default (other than a Default in the
payment of such consideration or arising from the Company's failure to provide
the applicable Option Purchase Notice).

            (J) Notwithstanding anything herein to the contrary, if the option
granted to Holders to require the purchase of the Securities on the Option
Purchase Date is determined to constitute a tender offer, the Company shall
comply with all applicable tender offer rules under the Exchange Act, including
Rule 13e-4 and Regulation 14E thereunder, and with all other applicable laws,
and will file a Schedule TO or any other schedules required under the Exchange
Act or any other applicable laws.

      3.10 REPURCHASE AT OPTION OF HOLDER UPON A FUNDAMENTAL CHANGE.

            (A) In the event any Fundamental Change (as defined below) shall
occur, each Holder of Securities shall have the right (the "FUNDAMENTAL CHANGE
REPURCHASE RIGHT"), at such Holder's option, to require the Company to
repurchase all of such Holder's Securities (or portions thereof that are
integral multiples of $1,000 in principal amount), on a date selected by the
Company (the "FUNDAMENTAL CHANGE REPURCHASE DATE"), which Fundamental Change
Repurchase Date shall be no later than thirty five (35) days, nor earlier than
twenty (20) days,

                                       -25-
<PAGE>

after the date the Fundamental Change Notice (as defined below) is mailed in
accordance with SECTION 3.10(B), at a price, payable in cash, equal to one
hundred percent (100%) of the principal amount of the Securities (or portions
thereof) to be so repurchased (the "FUNDAMENTAL CHANGE REPURCHASE PRICE"), plus
accrued and unpaid interest, if any, to, but excluding, the Fundamental Change
Repurchase Date, upon:

            (i) delivery to the Company (if it is acting as its own Paying
      Agent), or to a Paying Agent designated by the Company for such purpose in
      the Fundamental Change Notice, no later than the close of business on the
      third (3rd) Business Day immediately preceding the Fundamental Change
      Repurchase Date, of a Purchase Notice, in the form set forth in the
      Securities or any other form of written notice substantially similar
      thereto, in each case, duly completed and signed, with appropriate
      signature guarantee, stating:

                  (a) the certificate number(s) of the Securities which the
            Holder will deliver to be repurchased, if such Securities are in
            certificated form;

                  (b) the principal amount of Securities to be repurchased,
            which must be $1,000 or an integral multiple thereof; and

                  (c) that such principal amount of Securities are to be
            repurchased pursuant to the terms and conditions specified in
            PARAGRAPH 9 of the Securities and in this Indenture; and

            (ii) delivery to the Company (if it is acting as its own Paying
      Agent), or to a Paying Agent designated by the Company for such purpose in
      the Fundamental Change Notice, at any time after the delivery of such
      Purchase Notice, of such Securities (together with all necessary
      endorsements) with respect to which the Fundamental Change Repurchase
      Right is being exercised;

provided, however, that if such Fundamental Change Repurchase Date is after a
record date for the payment of an installment of interest and on or before the
related interest payment date, then the accrued and unpaid interest, if any, to,
but excluding, such interest payment date will be paid on such interest payment
date to the Holder of record of such Securities at the close of business on such
record date (without any surrender of such Securities by such Holder), and the
Holder surrendering such Securities for repurchase will not be entitled to any
such accrued and unpaid interest unless such Holder was also the Holder of
record of such Securities at the close of business on such record date.

            If such Securities are held in book-entry form through the
Depositary, the Purchase Notice shall comply with applicable procedures of the
Depositary.

            Upon such delivery of Securities to the Company (if it is acting as
its own Paying Agent) or such Paying Agent, such Holder shall be entitled to
receive, upon request, from the Company or such Paying Agent, as the case may
be, a nontransferable receipt of deposit evidencing such delivery.

            Notwithstanding anything herein to the contrary, any Holder that has
delivered the Purchase Notice contemplated by this SECTION 3.10(A) to the
Company (if it is acting as its own

                                       -26-
<PAGE>

Paying Agent) or to a Paying Agent designated by the Company for such purpose in
the Fundamental Change Notice shall have the right to withdraw such Purchase
Notice by delivery, at any time prior to the close of business on the third
(3rd) Business Day immediately preceding the Fundamental Change Repurchase Date,
of a written notice of withdrawal to the Company (if acting as its own Paying
Agent) or the Paying Agent, which notice shall contain the information specified
in SECTION 3.10(B)(xi).

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

            (B) Within twenty (20) Business Days after the occurrence of a
Fundamental Change, the Company shall mail, or cause to be mailed, to all
Holders of the Securities at their addresses shown in the register of the
Registrar, and to beneficial owners as required by applicable law, a notice (the
"FUNDAMENTAL CHANGE NOTICE") of the occurrence of such Fundamental Change and
the Fundamental Change Repurchase Right arising as a result thereof. The Company
shall deliver a copy of the Fundamental Change Notice to the Trustee and the
Securities Agent and shall publicly announce, through a reputable national
newswire service in the United States, and publish on the Company's website,
such Fundamental Change Notice.

            Each Fundamental Change Notice shall state:

                  (i) the events causing the Fundamental Change;

                  (ii) the date of such Fundamental Change;

                  (iii) the Fundamental Change Repurchase Date;

                  (iv) the date by which the Fundamental Change Repurchase Right
            must be exercised;

                  (v) the Fundamental Change Repurchase Price plus accrued and
            unpaid interest, if any, to, but excluding, the Fundamental Change
            Repurchase Date;

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

                  (vii) a description of the procedures which a Holder must
            follow to exercise the Fundamental Change Repurchase Right;

                  (viii) that, in order to exercise the Fundamental Change
            Repurchase Right, the Securities (together with all necessary
            endorsements) must be surrendered for payment of the Fundamental
            Change Repurchase Price plus accrued and unpaid interest, if any,
            payable as herein provided upon Repurchase Upon Fundamental Change;

                  (ix) that the Fundamental Change Repurchase Price, plus
            accrued and unpaid interest, if any, to, but excluding, the
            Fundamental Change Repurchase Date, for any Security as to which a
            Purchase Notice has been given and not withdrawn will be paid as
            promptly as practicable, but in no event more than the third (3rd)
            Business Day after the later of such Fundamental Change Repurchase
            Date and the time of delivery of the

                                       -27-
<PAGE>

            Security (together with all necessary endorsements) as described in
            CLAUSE (viii) above; provided, however, that if such Fundamental
            Change Repurchase Date is after a record date for the payment of an
            installment of interest and on or before the related interest
            payment date, then the accrued and unpaid interest, if any, to, but
            excluding, such interest payment date will be paid on such interest
            payment date to the Holder of record of such Security at the close
            of business on such record date (without any surrender of such
            Securities by such Holder), and the Holder surrendering such
            Security for repurchase will not be entitled to any such accreted
            and unpaid interest unless such Holder was also the Holder of record
            of such Security at the close of business on such record date;

                  (x) that, except as otherwise provided herein with respect to
            a Fundamental Change Repurchase Date that is after a record date for
            the payment of an installment of interest and on or before the
            related interest payment date, on and after such Fundamental Change
            Repurchase Date (unless there shall be a Default in the payment of
            the consideration payable as herein provided upon Repurchase Upon
            Fundamental Change), interest on Securities subject to Repurchase
            Upon Fundamental Change will cease to accrue, and all rights of the
            Holders of such Securities shall terminate, other than the right to
            receive, in accordance herewith, the consideration payable as herein
            provided upon Repurchase Upon Fundamental Change;

                  (xi) that a Holder will be entitled to withdraw its election
            in the Purchase Notice if the Company (if acting as its own Paying
            Agent), or the Paying Agent receives, prior to the close of business
            on the third (3rd) Business Day immediately preceding the
            Fundamental Change Repurchase Date, or such longer period as may be
            required by law, a letter or telegram, telex or facsimile
            transmission (receipt of which is confirmed and promptly followed by
            a letter) setting forth (I) the name of such Holder, (II) a
            statement that such Holder is withdrawing its election to have
            Securities purchased by the Company on such Fundamental Change
            Repurchase Date pursuant to a Repurchase Upon Fundamental Change,
            (III) the certificate number(s) of the Securities to be so
            withdrawn, if such Securities are in certificated form, (IV) the
            principal amount of the Securities of such Holder to be so
            withdrawn, which amount must be $1,000 or an integral multiple
            thereof and (V) the principal amount, if any, of the Securities of
            such Holder that remain subject to the Purchase Notice delivered by
            such Holder in accordance with this SECTION 3.10, which amount must
            be $1,000 or an integral multiple thereof;

                  (xii) the Conversion Rate and any adjustments to the
            Conversion Rate that will result from such Fundamental Change;

                  (xiii) that Securities with respect to which a Purchase Notice
            is given by a Holder may be converted pursuant to ARTICLE X, if
            otherwise convertible in accordance with ARTICLE X, only if such
            Purchase Notice has been withdrawn in accordance with this SECTION
            3.10 or if there shall be a Default in the payment of the
            Fundamental Change Repurchase Price or in the accrued and unpaid
            interest, if any, payable as herein provided upon Repurchase Upon
            Fundamental Change; and

                  (xiv) the CUSIP number or numbers, as the case may be, of the
            Securities.

                                       -28-
<PAGE>

            At the Company's request, upon reasonable prior written notice, the
Trustee shall mail such Fundamental Change Notice in the Company's name and at
the Company's expense; provided, however, that the form and content of such
Fundamental Change Notice shall be prepared by the Company.

            No failure of the Company to give a Fundamental Change Notice shall
limit any Holder's right pursuant hereto to exercise a Fundamental Change
Repurchase Right.

            (C) Subject to the provisions of this SECTION 3.10, the Company
shall pay, or cause to be paid, the Fundamental Change Repurchase Price, plus
accrued and unpaid interest, if any, to, but excluding, the Fundamental Change
Repurchase Date, with respect to each Security as to which the Fundamental
Change Repurchase Right shall have been exercised to the Holder thereof as
promptly as practicable, but in no event later than the third (3rd) Business Day
after the later of the Fundamental Change Repurchase Date and the time such
Security is surrendered to the Paying Agent; provided, however, that if such
Fundamental Change Repurchase Date is after a record date for the payment of an
installment of interest and on or before the related interest payment date, then
the accrued and unpaid interest, if any, to, but excluding, such interest
payment date will be paid on such interest payment date to the Holder of record
of such Security at the close of business on such record date, and the Holder
surrendering such Security for repurchase will not be entitled to any such
accrued and unpaid interest unless such Holder was also the Holder of record of
such Security at the close of business on such record date.

            (D) Prior to 10:00 A.M., New York City time on a Fundamental Change
Repurchase Date, the Company shall deposit with a Paying Agent (or, if the
Company is acting as its own Paying Agent, segregate and hold in trust in
accordance with SECTION 2.04) money, in funds immediately available on the
Fundamental Change Repurchase Date, sufficient to pay the consideration payable
as herein provided upon Repurchase Upon Fundamental Change for all of the
Securities that are to be repurchased by the Company on such Fundamental Change
Repurchase Date pursuant to a Repurchase Upon Fundamental Change. The Paying
Agent shall return to the Company, as soon as practicable, any money not
required for that purpose.

            (E) Once the Fundamental Change Notice and the Purchase Notice have
been duly given in accordance with this SECTION 3.10, the Securities to be
repurchased pursuant to a Repurchase Upon Fundamental Change shall, on the
Fundamental Change Repurchase Date, become due and payable in accordance
herewith, and, on and after such date (unless there shall be a Default in the
payment of the consideration payable as herein provided upon Repurchase Upon
Fundamental Change), except as otherwise provided herein with respect to a
Fundamental Change Repurchase Date that is after a record date for the payment
of an installment of interest and on or before the related interest payment
date, such Securities shall cease to bear interest, and all rights of the
Holders of such Securities shall terminate, other than the right to receive, in
accordance herewith, such consideration.

            (F) Securities with respect to which a Purchase Notice has been duly
delivered in accordance with this SECTION 3.10 may be converted pursuant to
ARTICLE X, if otherwise convertible in accordance with ARTICLE X, only if such
Purchase Notice has been withdrawn in accordance with this SECTION 3.10 or if
there shall be a Default in the payment of the consideration payable as herein
provided upon Repurchase Upon Fundamental Change.

                                       -29-
<PAGE>

            (G) If any Security shall not be paid upon surrender thereof for
Repurchase Upon Fundamental Change, the principal of and accrued and unpaid
interest on, such Security shall, until paid, bear interest, payable in cash, at
the rate borne by such Security on the principal amount of such Security, and
such Security shall continue to be convertible pursuant to ARTICLE X.

            (H) Any Security which is to be submitted for Repurchase Upon
Fundamental Change only in part shall be delivered pursuant to this SECTION 3.10
(with, if the Company or the Securities Agent so requires, due endorsement by,
or a written instrument of transfer in form satisfactory to the Company and the
Securities Agent duly executed by, the Holder thereof or its attorney duly
authorized in writing, with a medallion guarantee), and the Company shall
execute, and the Trustee shall, upon receipt of a Company Order, authenticate
and make available for delivery to the Holder of such Security without service
charge, a new Security or Securities, of any authorized denomination as
requested by such Holder, of the same tenor and in aggregate principal amount
equal to the portion of such Security not duly submitted for Repurchase Upon
Fundamental Change.

            (I) Notwithstanding anything herein to the contrary, there shall be
no purchase of any Securities pursuant to this SECTION 3.10 if there has
occurred (prior to, on or after, as the case may be, the giving, by the Holders
of such Securities, of the required Purchase Notice) and is continuing an Event
of Default (other than a Default in the payment of the consideration payable as
herein provided upon Repurchase Upon Fundamental Change or a Default arising
from the Company's failure to provide the applicable Fundamental Change Notice).
The Paying Agent will promptly return to the respective Holders thereof any
Securities held by it during the continuance of an Event of Default (other than
a Default in the payment of such consideration or arising from the Company's
failure to provide the applicable Fundamental Change Notice).

            (J) Notwithstanding anything herein to the contrary, if the option
granted to Holders to require the repurchase of the Securities upon the
occurrence of a Fundamental Change is determined to constitute a tender offer,
the Company shall comply with all applicable tender offer rules under the
Exchange Act, including Rule 13e-4 and Regulation 14E thereunder, and with all
other applicable laws, and will file a Schedule TO or any other schedules
required under the Exchange Act or any other applicable laws.

            (K) As used herein and in the Securities, a "FUNDAMENTAL CHANGE"
shall be deemed to have occurred upon the occurrence of either a "Change in
Control" or a "Termination of Trading."

                  (i) A "CHANGE IN CONTROL" shall be deemed to have occurred at
            such time as:

                        (a) any "person" or "group" (as such terms are used in
                  Sections 13(d) and 14(d) of the Exchange Act), other than Dr.
                  Zhengrong Shi, is or becomes the "beneficial owner" (as such
                  term is used in Rule 13d-3 under the Exchange Act), directly
                  or indirectly, of fifty percent (50%) or more of the Voting
                  Shares of the Company, or if Dr. Zhengrong Shi or any "group"
                  (as that term is used in Section 13(d) and 14(d) of the
                  Exchange Act) of which he is a part is or becomes the

                                       -30-
<PAGE>

                  "beneficial owner" (as that term is used in Rule 13d-3 under
                  the Exchange Act), directly or indirectly, of 60% or more of
                  the Voting Shares of the Company; or

                        (b) there occurs a sale, transfer, lease, conveyance or
                  other disposition (other than a Permitted Transfer) of all or
                  substantially all of the property or assets of the Company to
                  any "person" or "group" (as such terms are used in Sections
                  13(d) and 14(d) of the Exchange Act), including any group
                  acting for the purpose of acquiring, holding, voting or
                  disposing of securities within the meaning of Rule 13d-5(b)(1)
                  under the Exchange Act; or

                        (c) the Company consolidates or amalgamates with, merges
                  with or into, or are reconstructed into another person or any
                  person consolidates or amalgamates with, or merges with or
                  into, or is reconstructed into the Company, unless either:

                              (1) the persons that "beneficially owned" (as such
                        term is used in Rule 13d-3 under the Exchange Act),
                        directly or indirectly, the shares of the Company's
                        Voting Share immediately prior to such transaction,
                        "beneficially own," directly or indirectly, immediately
                        after such transaction, shares of the surviving or
                        continuing corporation's Voting Share representing at
                        least a majority of the total outstanding voting power
                        of all outstanding classes of the Voting Share of the
                        surviving or continuing corporation in substantially the
                        same proportion as such ownership immediately prior to
                        such transaction; or

                              (2) at least ninety percent (90%) of the
                        consideration (other than cash payments for fractional
                        shares or pursuant to statutory appraisal rights) in
                        such consolidation or merger consists of common stock,
                        shares or American depositary shares representing such
                        shares and any associated rights traded on a U.S.
                        national securities exchange (or which will be so traded
                        or quoted when issued or exchanged in connection with
                        such transaction), and, as a result of such
                        consolidation, amalgamates or merger, the Securities
                        become convertible solely (except as to any cash
                        payments for the Principal Return, and cash in lieu of
                        fractional shares due upon conversion) into such common
                        stock, shares or American depositary shares representing
                        such shares, and associated rights (such a
                        consolidation, amalgamates or merger that satisfies the
                        conditions set forth in this CLAUSE (2), a "LISTED SHARE
                        BUSINESS COMBINATION"), subject to the full or partial
                        cash settlement of the Company's Conversion Obligation;
                        or

                        (d) the following persons cease for any reason to
                  constitute a majority of the Company's Board of Directors:

                              (1) individuals who on the Issue Date constituted
                        the Company's Board of Directors; and

                                       -31-
<PAGE>

                              (2) any new directors whose election to the
                        Company's Board of Directors or whose nomination for
                        election by the Company's shareholders was approved by
                        at least a majority of the directors of the Company then
                        still in office either who were directors of the Company
                        on the Issue Date or whose election or nomination for
                        election was previously so approved; or

                        (e) the Company is liquidated, dissolved or wound up or
                  the holders of the Company's Share Capital approve any plan or
                  proposal for the liquidation, dissolution or winding up of the
                  Company.

                  (ii) A "TERMINATION OF TRADING" shall be deemed to occur when
            neither the ADSs of the Company (or other securities into which the
            Securities are then convertible) nor the Ordinary Shares represented
            by the ADSs are listed for trading on a U.S. national securities
            exchange.

      3.11 CONVERSION ARRANGEMENT ON CALL FOR REDEMPTION.

            In connection with a Redemption of Securities, the Company may
arrange, in lieu of Redemption, for the purchase and conversion of any
Securities called for Redemption by an agreement with one or more investment
banks or other purchasers to purchase all or a portion of such Securities by
paying, on or before 10:00 A.M., New York City time on the Redemption Date, to
the Paying Agent in trust for the Holders whose Securities are to be so
purchased, an amount of money, in funds immediately available on the Redemption
Date, that, together with any amounts deposited with the Paying Agent by the
Company for Redemption of such Securities, is not less than the aggregate
Redemption Price, together with accrued and unpaid interest, if any, to, but
excluding, the Redemption Date, of such Securities. Notwithstanding anything to
the contrary contained in this ARTICLE III, the obligation of the Company to pay
the Redemption Price of such Securities, including all accrued interest, if any,
shall be deemed to be satisfied and discharged to the extent such amount is so
paid by such purchasers, but no such agreement shall relieve the Company of its
obligation to pay such Redemption Price or such accrued and unpaid interest, if
any. If such an agreement is entered into, any Securities not duly surrendered
for conversion by the Holders thereof may, at the option of the Company, be
deemed, to the fullest extent permitted by law, acquired by such purchasers from
such Holders and (notwithstanding anything to the contrary contained in ARTICLE
X) surrendered by such purchasers for conversion, all as of immediately prior to
the close of business on the Redemption Date, subject to payment of the above
amount as aforesaid. The Paying Agent shall hold and pay to the Holders whose
Securities are selected for Redemption any such amount paid to it for purchase
and conversion in the same manner as it would moneys deposited with it by the
Company for the Redemption of Securities. Without the prior written consent of
the Trustee, the Securities Agent and the Paying Agent, no arrangement between
the Company and such purchasers for the purchase and conversion of any
Securities shall increase or otherwise affect any of the powers, duties, rights,
immunities, responsibilities or obligations of the Trustee, the Securities
Agent, or the Paying Agent as set forth in this Indenture, and the Company
agrees to indemnify the Trustee, the Securities Agent and the Paying Agent from,
and hold them harmless against, any and all loss, liability or expense arising
out of or in connection with any such arrangement for the purchase and
conversion of any Securities between the Company and such

                                       -32-
<PAGE>

purchasers, including the costs and expenses (including counsel fees and
expenses) incurred by the Trustee, the Securities Agent or the Paying Agent in
the defense of any claim or liability arising out of or in connection with the
exercise or performance of any of their powers, duties, responsibilities or
obligations under this Indenture except to the extent arising from their bad
faith, willful misconduct or negligence, as determined by a court with competent
jurisdiction in a final decision.

                                 IV. COVENANTS

      4.01 PAYMENT OF SECURITIES.

            The Company shall pay all amounts due with respect to the Securities
on the dates and in the manner provided in the Securities and this Indenture.
All such amounts shall be considered paid on the date due if the Paying Agent
holds (or, if the Company is acting as Paying Agent, the Company has segregated
and holds in trust in accordance with SECTION 2.04) on that date money
sufficient to pay the amount then due with respect to the Securities (unless
there shall be a Default in the payment of such amounts to the respective
Holder(s)). The Company will pay, in money of the United States that at the time
of payment is legal tender for payment of public and private debts, all amounts
due in cash with respect to the Securities, which amounts shall be paid (A) in
the case of a Security that is in global form, by wire transfer of immediately
available funds to the account designated by the Depositary or its nominee; (B)
in the case of a Security that is held, other than global form, by a Holder of
more than five million dollars ($5,000,000) in aggregate principal amount of
Securities, by wire transfer of immediately available funds to the account
specified by such Holder or, if such Holder does not specify an account, by
mailing a check to the address of such Holder set forth in the register of the
Registrar; and (C) in the case of a Security that is held, other than global
form, by a Holder of five million dollars ($5,000,000) or less in aggregate
principal amount of Securities, by mailing a check to the address of such Holder
set forth in the register of the Registrar.

            The Company shall pay, in cash, interest on any overdue amount
(including, to the extent permitted by applicable law, overdue interest) at the
rate borne by the Securities.

      4.02 MAINTENANCE OF OFFICE OR AGENCY.

            The Company will maintain, or cause to be maintained, in the Borough
of Manhattan, the City of New York, an office or agency (which may be an office
of the Securities Agent or an affiliate of the Securities Agent, Registrar or
co-Registrar) where Securities may be surrendered for registration of transfer
or exchange, payment or conversion. The Company will give prompt written notice
to the Trustee and the Securities Agent of the location, and any change in the
location, of such office or agency. If at any time the Company shall fail to
maintain, or fail to cause to maintain, any such required office or agency or
shall fail to furnish the Trustee and the Securities Agent with the address
thereof; such presentations and surrenders may be made or served at the
applicable Corporate Trust Office of the Securities Agent. The Company will
maintain, or cause to be maintained, in the Borough of Manhattan, the City of
New York, an office or agency where notices and demands to or upon the Company
in respect of the Securities and this Indenture may be served, provided that
such office or agency may instead be at the principal office of the Company
located in the United States.

                                       -33-
<PAGE>

            The Company may also from time to time designate one or more other
offices or agencies where the Securities may be presented or surrendered for any
or all such purposes and may from time to time rescind such designations;
provided, however, that no such designation or rescission shall in any manner
relieve the Company of its obligation to maintain an office or agency in the
Borough of Manhattan, the City of New York for such purposes. The Company will
give prompt written notice to the Trustee and the Securities Agent of any such
designation or rescission and of any change in the location of any such other
office or agency.

            The Company hereby designates the applicable Corporate Trust Office
of the Securities Agent as an agency of the Company in accordance with SECTION
2.03.

      4.03 RULE 144A INFORMATION AND ANNUAL REPORTS.

            (A) At any time when the Company is not subject to, or is in
violation of, Sections 13 or 15(d) of the Exchange Act, the Company shall
promptly provide to the Securities Agent and shall, upon request, provide to any
Holder, beneficial owner or prospective purchaser of Securities or ADSs issued
upon conversion of any Securities, the information required to be delivered
pursuant to Rule 144A(d)(4) under the Securities Act to facilitate the resale of
such Securities or ADSs pursuant to Rule 144A; provided, however, that the
Company shall not be obligated to provide such information if none of the
outstanding Securities constitute "restricted securities" within the meaning of
Rule 144(a)(3) under the Securities Act. The Company shall take such further
action as any Holder or beneficial holder of such Securities or ADSs may
reasonably request in writing to the extent required from time to time to enable
such Holder or beneficial holder to sell its Securities or ADSs in accordance
with Rule 144A, as such rule may be amended from time to time.

            (B) The Company shall deliver to the Trustee and the Securities
Agent, no later than the time such report is required to be filed with the SEC
pursuant to the Exchange Act, a copy of each report the Company is required to
file with the SEC pursuant to Section 13 or 15(d) or the Exchange Act; provided,
however, that the Company shall not be required to deliver to the Trustee or the
Securities Agent any material for which the Company has sought and received
confidential treatment by the SEC; provided further, each such report will be
deemed to be so delivered to the Trustee and the Securities Agent if the Company
files such report with the SEC through the SEC's EDGAR database no later than
the time such report is required to be filed with the SEC pursuant to the
Exchange Act. In the event the Company is at any time no longer subject to the
reporting requirements of Section 13 or Section 15(d) of the Exchange Act, the
Company shall continue to provide the Trustee and the Securities Agent and each
Holder, within thirty (30) calendar days after the date the Company would have
been required to file such reports with the SEC, annual and quarterly
consolidated financial statements substantially equivalent to financial
statements that would have been included in reports filed with the SEC if the
Company were subject to the reporting requirements of Section 13 or Section
15(d) of the Exchange Act, including, with respect to annual information only, a
report thereon by the Company's certified independent public accountants as such
would be required in such reports filed with the SEC and, in each case, together
with a management's discussion and analysis of financial condition and results
of operations which would be so required. The Company also shall comply with the
other provisions of TIA Section 314(a).

                                       -34-
<PAGE>

      4.04 COMPLIANCE CERTIFICATE.

            The Company shall deliver to the Trustee, within ninety (90)
calendar days after the end of each fiscal year of the Company, or, if earlier,
by the date the Company is, or would be, required to file with the SEC the
Company's annual report (whether on Form 20-F under the Exchange Act or another
appropriate form) for such fiscal year, certificate of two (2) or more Officers
as required by TIA Section 314(a)(4), stating whether or not the signatories to
such certificate have actual knowledge of any Default or Event of Default by the
Company in performing any of its obligations under this Indenture or the
Securities (without regard to any period of grace or requirement of notice
hereunder or thereunder). If such signatories do know of any such Default or
Event of Default, then such certificate shall describe the Default or Event of
Default and its status.

      4.05 STAY, EXTENSION AND USURY LAWS.

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

      4.06 CORPORATE EXISTENCE.

            Subject to ARTICLE V, the Company will do or cause to be done all
things necessary to preserve and keep in full force and effect its corporate
existence and the corporate existence of each of its Subsidiaries, in accordance
with the respective organizational documents of the Company and of each
Subsidiary, and the rights (charter and statutory), licenses and franchises of
the Company and its Subsidiaries; provided, however, that the Company shall not
be required to preserve any such right, license or franchise, or the corporate
existence of any Subsidiary, if in the good faith judgment of the Board of
Directors (i) such preservation or existence is not material to the conduct of
business of the Company and (ii) the loss of such right, license or franchise or
the dissolution of such Subsidiary does not have a material adverse impact on
the Holders.

      4.07 NOTICE OF DEFAULT.

            Upon the Company becoming aware of the occurrence of any Default or
Event of Default, the Company shall give prompt written notice of such Default
or Event of Default, and any remedial action proposed to be taken, to the
Trustee and the Securities Agent.

      4.08 FURTHER INSTRUMENTS AND ACTS.

            Upon request of the Trustee or the Securities Agent, the Company
shall execute and deliver such further instruments and do such further acts as
may be reasonably necessary or proper to carry out more effectively the purposes
of this Indenture.

                                       -35-
<PAGE>

      4.09 DELIVERY OF ORDINARY SHARES.

            The Company will deliver to the ADS custodian, such Ordinary Shares
required for the issuance of the ADSs by the ADS Depositary upon conversion of
the Securities, plus written delivery instructions (if requested by the ADS
Depositary or the ADS custodian) for such ADSs and any other information or
documentation required by the ADS Depositary the ADS custodian in connection
with each deposit of the Ordinary Shares and issuance and delivery of the ADSs.

                                 V. SUCCESSORS

      5.01 WHEN COMPANY MAY MERGE, ETC.

            The Company shall not consolidate or amalgamate with, or merge with
or into or reconstruct into or enter into other similar arrangements with, or
sell, transfer, lease, convey or otherwise dispose of all or substantially all
of the property or assets of the Company to, another person, whether in a single
transaction or series of related transactions, unless (i) such other person is a
corporation organized and existing under the laws of the Cayman Islands, the
British Virgin Islands, Bermuda, Hong Kong, the United States, any State thereof
or the District of Columbia; (ii) such person assumes by supplemental indenture
all the obligations of the Company under the Securities and this Indenture; and
(iii) immediately after giving effect to such transaction or series of
transactions, no Default or Event of Default shall exist.

            The Company shall deliver to the Trustee and the Securities Agent
prior to the consummation of the proposed transaction an Officer's Certificate
to the foregoing effect and an Opinion of Counsel (which may rely upon such
Officer's Certificate as to the absence of Defaults and Events of Default)
stating that the proposed transaction and such supplemental indenture will, upon
consummation of the proposed transaction, comply with this Indenture.

      5.02 SUCCESSOR SUBSTITUTED.

            Upon any consolidation, amalgamation, merger, reconstruction or any
sale, transfer, lease, conveyance or other disposition of all or substantially
all of the property or assets of the Company, the successor person formed by
such consolidation or into which the Company is merged or to which such sale,
transfer, lease, conveyance or other disposition is made shall succeed to, and,
except in the case of a lease, be substituted for, and may exercise every right
and power of, and shall assume every duty and obligation of, the Company under
this Indenture with the same effect as if such successor had been named as the
Company herein. When the successor assumes all obligations of the Company
hereunder, except in the case of a lease, all obligations of the predecessor
shall terminate.

                           VI. DEFAULTS AND REMEDIES

      6.01 EVENTS OF DEFAULT.

            An "EVENT OF DEFAULT" occurs if:

                                       -36-
<PAGE>

            (i) the Company fails to pay the principal of, or premium, if any,
      on, any Security when the same becomes due and payable, whether at
      maturity, upon Redemption, on an Option Purchase Date with respect to a
      Purchase at Holder's Option, on a Fundamental Change Repurchase Date with
      respect to a Repurchase Upon Fundamental Change or otherwise;

            (ii) the Company fails to pay an installment of interest or
      additional interest on any Security when due, if such failure continues
      for thirty (30) days after the date when due;

            (iii) the Company fails to satisfy its conversion obligations upon
      exercise of a Holder's conversion rights pursuant hereto;

            (iv) the Company fails to timely provide a Fundamental Change Notice
      or an Option Purchase Notice, as required by the provisions of this
      Indenture, or fails to timely provide any notice pursuant to, and in
      accordance with, SECTION 10.14(D);

            (v) the Company fails to comply with any other term, covenant or
      agreement set forth in the Securities or this Indenture and such failure
      continues for the period, and after the notice, specified below;

            (vi) the Company or any of its Subsidiaries defaults in the payment
      when due, after the expiration of any applicable grace period, of
      principal of, or premium, if any, or interest on, Indebtedness for money
      borrowed, in the aggregate principal amount then outstanding of thirty
      million dollars ($30,000,000) or more, or the acceleration of Indebtedness
      of the Company or any of its Subsidiaries for money borrowed in such
      aggregate principal amount or more so that it becomes due and payable
      prior to the date on which it would otherwise become due and payable and
      such default is not cured or waived, or such acceleration is not
      rescinded, within sixty (60) days after notice to the Company by the
      Trustee or to the Company and the Trustee by Holders of at least twenty
      five percent (25%) in the aggregate principal amount of the Securities
      then outstanding, each in accordance with this Indenture;

            (vii) the Company or any of its Subsidiaries fails, within sixty
      (60) days, to pay, bond or otherwise discharge any judgments or orders for
      the payment of money the total uninsured amount of which for the Company
      or any of its Subsidiaries exceeds fifty million dollars ($50,000,000),
      which are not stayed on appeal;

            (viii) the Company or any of its Significant Subsidiaries or any
      group of Subsidiaries that in the aggregate would constitute a Significant
      Subsidiary of the Company, pursuant to, or within the meaning of, any
      Bankruptcy Law, insolvency law, or other similar law now or hereafter in
      effect or otherwise, either:

                  (A) commences a voluntary case,

                  (B) consents to the entry of an order for relief against it in
            an involuntary case,

                                       -37-
<PAGE>

                  (C) consents to the appointment of a Custodian of it or for
            all or substantially all of its property, or

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

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

                  (A) is for relief against the Company or any of its
            Significant Subsidiaries or any group of Subsidiaries that in the
            aggregate would constitute a Significant Subsidiary of the Company
            in an involuntary case or proceeding, or adjudicates the Company or
            any of its Significant Subsidiaries or any group of Subsidiaries
            that in the aggregate would constitute a Significant Subsidiary of
            the Company insolvent or bankrupt,

                  (B) appoints a Custodian of the Company or any of its
            Significant Subsidiaries or any group of Subsidiaries that in the
            aggregate would constitute a Significant Subsidiary of the Company
            for all or substantially all of the property of the Company or any
            such Significant Subsidiary or any group of Subsidiaries that in the
            aggregate would constitute a Significant Subsidiary of the Company,
            as the case may be, or

                  (C) orders the winding up or liquidation of the Company or any
            of its Significant Subsidiaries or any group of Subsidiaries that in
            the aggregate would constitute a Significant Subsidiary of the
            Company,

      and, in the case of each of the foregoing clauses (A), (B) and (C) of this
      SECTION 6.01(ix), the order or decree remains unstayed and in effect for
      at least ninety (90) consecutive days.

      The term "BANKRUPTCY LAW" means the bankruptcy laws of the respective
jurisdictions of incorporation of the Company and the Significant Subsidiaries
for the relief of debtors. The term "CUSTODIAN" means any receiver, trustee,
assignee, liquidator or similar official under any Bankruptcy Law.

      A Default under CLAUSE (v) above is not an Event of Default until (I) the
Trustee notifies the Company, or the Holders of at least twenty five percent
(25%) in aggregate principal amount of the Securities then outstanding notify
the Company and the Trustee in writing, of the Default and (II) the Default is
not cured within sixty (60) days after receipt of such notice. Such notice must
specify the Default, demand that it be remedied and state that the notice is a
"NOTICE OF DEFAULT." If the Holders of at least twenty five percent (25%) in
aggregate principal amount of the outstanding Securities request the Trustee to
give such notice on their behalf, the Trustee shall do so. When a Default is
cured, it ceases to exist for all purposes under this Indenture.

      6.02 ACCELERATION.

      If an Event of Default (excluding an Event of Default specified in
SECTION 6.01(viii) or (ix) with respect to the Company (but including an Event
of Default specified in

                                       -38-
<PAGE>

SECTION 6.01(viii) or (ix) solely with respect to a Significant Subsidiary of
the Company or any group of Subsidiaries that in the aggregate would constitute
a Significant Subsidiary of the Company)) occurs and is continuing, the Trustee
by written notice to the Company, or the Holders of at least twenty five percent
(25%) in aggregate principal amount of the Securities then outstanding by
written notice to the Company and the Trustee, may declare the Securities to be
immediately due and payable in full. Upon such declaration, the principal of,
and any accrued and unpaid interest (including additional interest) on, all
Securities shall be due and payable immediately. If an Event of Default
specified in SECTION 6.01(viii) or (ix) with respect to the Company (excluding,
for purposes of this sentence, an Event of Default specified in SECTION
6.01(viii) or (ix) solely with respect to a Significant Subsidiary of the
Company or any group of Subsidiaries that in the aggregate would constitute a
Significant Subsidiary of the Company) occurs, the principal of, and accrued and
unpaid interest (including any additional interest) on, all the Securities shall
ipso facto become and be immediately due and payable without any declaration or
other act on the part of the Trustee or any Holder. The Holders of a majority in
aggregate principal amount of the Securities then outstanding by written notice
to the Trustee may rescind or annul an acceleration and its consequences if (A)
the rescission would not conflict with any order or decree, (B) all existing
Events of Default, except the nonpayment of principal or interest (including and
additional interest) that has become due solely because of the acceleration,
have been cured or waived and (C) all amounts due to the Trustee and the
Securities Agent under SECTION 7.07 have been paid.

      6.03 OTHER REMEDIES.

            Notwithstanding any other provision of this Indenture, if an Event
of Default occurs and is continuing, and a Responsible Officer of the Trustee
has actual knowledge of such Event of Default, the Trustee may pursue any
available remedy by proceeding at law or in equity to collect the payment of
amounts due with respect to the Securities or to enforce the performance of any
provision of the Securities or this Indenture.

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

      6.04 WAIVER OF PAST DEFAULTS.

            Subject to SECTIONS 6.07 and 9.02, the Holders of a majority in
aggregate principal amount of the Securities then outstanding may, by notice to
the Trustee, waive any past Default or Event of Default and its consequences,
other than (A) a Default or Event of Default in the payment of the principal of,
or premium, if any, or interest or additional interest on, any Security, or in
the payment of the Redemption Price, the Option Purchase Price or the
Fundamental Change Repurchase Price (or accrued and unpaid interest, if any,
payable as herein provided, upon Redemption, Purchase at Holder's Option or
Repurchase Upon Fundamental Change), (B) a Default or Event of Default arising
from a failure by the Company to convert any Securities in accordance with this
Indenture or (C) any Default or Event of Default in respect of any provision of
this Indenture or the Securities which, under SECTION 9.02, cannot be modified

                                       -39-
<PAGE>

or amended without the consent of the Holder of each outstanding Security
affected. When a Default or an Event of Default is waived, it is cured and
ceases to exist for all purposes under this Indenture. This SECTION 6.04 shall
be in lieu of TIA Section 316(a)(1)(B), and, as permitted by the TIA, TIA
Section 316(a)(l)(B) is hereby expressly excluded from this Indenture.

      6.05 CONTROL BY MAJORITY.

            The Holders of a majority in aggregate principal amount of the
Securities then outstanding may direct the time, method and place of conducting
any proceeding for any remedy available to the Trustee or exercising any trust
or power conferred on it. However, the Trustee may refuse to follow any
direction that conflicts with law or this Indenture, is unduly prejudicial to
the rights of other Holders or would involve the Trustee in personal liability
unless the Trustee is offered indemnity satisfactory to it; provided, that the
Trustee may take any other action deemed proper by the Trustee which is not
inconsistent with such direction, this SECTION 6.05 shall be in lieu of TIA
Section 316(a)(1)(A), and, as permitted by the TIA, TIA Section 316(a)(1)(A) is
hereby expressly excluded from this Indenture.

      6.06 LIMITATION ON SUITS.

            Except as provided in SECTION 6.07, a Securityholder may not
institute any proceeding under this Indenture, or for the appointment of a
receiver or a trustee, or for any other remedy under this Indenture unless:

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

                  (ii) the Holders of at least twenty five percent (25%) in
            aggregate principal amount of the Securities then outstanding make a
            written request to the Trustee to pursue the remedy;

                  (iii) such Holder or Holders offer and, if requested, provide
            to the Trustee indemnity reasonably satisfactory to the Trustee
            against any loss, liability or expense to or of the Trustee in
            connection with pursuing such remedy;

                  (iv) the Trustee does not comply with the request within sixty
            (60) days after receipt of such notice, request and offer of
            indemnity; and

                  (v) during such sixty (60) day period, the Holders of a
            majority in aggregate principal amount of the Securities then
            outstanding do not give the Trustee a direction inconsistent with
            the request.

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

      6.07 RIGHTS OF HOLDERS TO RECEIVE PAYMENT.

            Notwithstanding any other provision of this Indenture, the right of
any Holder to receive payment of all amounts due with respect to the Securities,
on or after the respective due dates as

                                       -40-
<PAGE>

provided herein, or to bring suit for the enforcement of any such payment on or
after such respective dates, shall not be impaired or affected without the
consent of the Holder.

            Notwithstanding any other provision of this Indenture, the right of
any Holder to convert the Security in accordance with this Indenture, or to
bring suit for the enforcement of such right, shall not be impaired or affected
without the consent of the Holder.

      6.08 COLLECTION SUIT BY TRUSTEE.

            If an Event of Default specified in SECTION 6.01(i) or (ii) occurs
and is continuing, the Trustee may recover judgment in its own name and as
trustee of an express trust against the Company for the whole amount due with
respect to the Securities, including any unpaid and accrued interest.

      6.09 TRUSTEE MAY FILE PROOFS OF CLAIM.

            The Trustee may file such proofs of claim and other papers or
documents as may be necessary or advisable in order to have the claims of the
Trustee, any predecessor Trustee and the Securityholders allowed in any judicial
proceedings relative to the Company or its creditors or properties.

            The Trustee may 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 judicial proceeding is hereby authorized by each Holder to make
such payments to the Trustee and, in the event that the Trustee shall consent to
the making of such payments directly to the Holders, to pay the Trustee any
amount due it for the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel, and any other amounts due the
Trustee under SECTION 7.07.

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

      6.10 PRIORITIES.

            If the Trustee collects any money pursuant to this ARTICLE VI, it
shall pay out the money in the following order:

<TABLE>
<S>      <C>
First:   to the Trustee and the Securities Agent for amounts due under SECTION
         7.07;

Second:  to Securityholders for all amounts due and unpaid on the Securities,
         without preference or priority of any kind, according to the amounts
         due and payable on the Securities; and

Third:   the balance, if any, to the Company
</TABLE>

                                       -41-

<PAGE>

            The Trustee, upon prior written notice to the Company, may fix a
record date and payment date for any payment by it to Securityholders pursuant
to this SECTION 6.10. At least fifteen (15) days before each such record date,
the Trustee shall mail to each Holder and the Company a written notice that
states such record date and payment date and the amount of such payment.

      6.11 UNDERTAKING FOR COSTS.

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

                        VII. TRUSTEE AND SECURITIES AGENT

      7.01 DUTIES OF TRUSTEE AND THE SECURITIES AGENT.

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

            (B) The Trustee, except during the continuance of an Event of
Default, and the Securities Agent:

                  (i) need perform only those duties that are specifically set
            forth in this Indenture, and no implied covenants or obligations
            shall be read into this Indenture against the Trustee or the
            Securities Agent; and

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

            (C) Neither the Trustee nor the Securities Agent may be relieved
from liability for its own negligent action, its own negligent failure to act or
its own willful misconduct, except that:

                                       -42-
<PAGE>

                  (i) neither the Trustee nor the Securities Agent shall be
            liable for any error of judgment made in good faith by a Responsible
            Officer thereof, unless it is conclusively determined by a court of
            competent jurisdiction that the Trustee or the Securities Agent, as
            the case may be, was negligent in ascertaining the pertinent facts;
            and

                  (ii) the Trustee shall be not liable with respect to any
            action it takes or omits to take in good faith in accordance with a
            direction received by it pursuant to SECTION 6.05.

            (D) Every provision of this Indenture that in any way relates to the
Trustee or the Securities Agent is subject to the provisions of this SECTION
7.01.

            (E) Neither the Trustee nor the Securities Agent shall be liable for
interest on any money received by it except as the Trustee or the Securities
Agent, as the case may be, may agree in writing with the Company. Money held in
trust by the Trustee or the Securities Agent shall be segregated from other
funds as directed in writing by the Company or as required by law and shall be
invested by the Trustee or the Securities Agent, as applicable, pursuant to the
written instructions of the Company reasonably satisfactory to the Trustee or
the Securities Agent, as applicable.

      7.02 RIGHTS OF TRUSTEE AND THE SECURITIES AGENT.

            (A) Subject to SECTION 7.01, each of the Trustee and the Securities
Agent may conclusively rely on any document believed by it to be genuine and to
have been signed or presented by the proper person. Neither the Trustee nor the
Securities Agent need investigate any fact or matter stated in the document; if,
however, the Trustee or the Securities Agent shall determine to make such
further inquiry or investigation, it shall be entitled during normal business
hours of the Company to examine the relevant books, records and premises of the
Company, personally or by agent or attorney upon reasonable prior notice.

            (B) Before the Trustee or the Securities Agent acts or refrains from
acting, it may require an Officer's Certificate and/or an Opinion of Counsel.
Neither the Trustee nor the Securities Agent shall be liable for any action it
takes or omits to take in good faith in reliance on such Officer's Certificate
or Opinion of Counsel. No such Officer's Certificate or Opinion of Counsel shall
be at the expense of the Trustee or the Securities Agent.

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

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

            (E) Each of the Trustee and the Securities Agent may act through
agents or attorneys, and neither the Trustee nor the Securities Agent shall be
responsible for the misconduct or negligence of any agent or attorney appointed
with due care.

                                       -43-
<PAGE>

            (F) Neither the Trustee nor the Securities Agent shall be liable for
any action it takes, suffers or omits to take in good faith, which it believes
to be authorized or within its discretion, rights or powers conferred upon it by
this Indenture.

            (G) Neither the Trustee nor the Securities Agent shall have any duty
to inquire as to the performance of the Company with respect to the covenants
contained in ARTICLE IV. In addition, neither the Trustee nor the Securities
Agent shall be deemed to have knowledge of a Default, Event of Default,
Fundamental Change or Make-Whole Fundamental Change except (i) with respect to
the Trustee, any Default or Event of Default occurring pursuant to SECTIONS
6.01(i) or 6.01(ii) or (ii) any Default, Event of Default, Fundamental Change,
Make-Whole Fundamental Change of which a Responsible Officer of the Trustee or
the Securities Agent, as the case may be, shall have received written
notification from a Securityholder or the Company of the circumstances
constituting the same and stating so in such written notifications, or obtained
actual knowledge. Except as otherwise provided herein, the Trustee and the
Securities Agent may, in the absence of such actual knowledge or receipt of such
written notification, conclusively assume that there is no Default, Event of
Default, Fundamental Change or Make-Whole Fundamental Change. Delivery of
reports, information and documents to the Trustee or the Securities Agent under
ARTICLE IV (other than SECTIONS 4.04 and 4.07) is for informational purposes
only and the receipt by the Trustee or the Securities Agent of the foregoing
shall not constitute constructive notice of any information contained therein or
determinable from information contained therein, including the Company's
compliance with any of its covenants hereunder (as to which each of the Trustee
and the Securities Agent is entitled to rely on Officer's Certificates).

            (H) Subject to SECTION 7.01(A), neither the Trustee nor the
Securities Agent shall be under any obligation to exercise any of the rights or
powers vested by this Indenture at the request or direction of any of the
Holders pursuant to this Indenture unless such Holders shall have offered to the
Trustee or the Securities Agent, as applicable, security or indemnity reasonably
satisfactory to the Trustee or the Securities Agent, as applicable, against the
costs, expenses and liabilities which might be incurred by it in compliance with
such request or direction.

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

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

            (K) Neither the Trustee nor the Securities Agent shall be required
to expend or risk its own funds or otherwise incur financial liability for the
performance of any of its duties hereunder or the exercise of any of its rights
or powers if there is reasonable ground for believing that the

                                       -44-
<PAGE>

repayment of such funds or reasonably adequate indemnity against such risk or
liability is not assured to it.

            (L) Neither the Trustee nor the Securities Agent shall have any duty
(i) to see to any recording, filing or depositing of this Indenture or any
Indenture referred to herein or any financing statement or continuation
statement evidencing a security interest, or to see to the maintenance of any
such recording or filing or depositing or to any rerecording, refiling or
redepositing of any thereof or (ii) to see to any insurance.

            (M) The rights of the Trustee and the Securities Agent to perform
any discretionary act enumerated in this Indenture shall not be construed as a
duty, and neither the Trustee nor the Securities Agent shall be answerable other
than for its negligence or willful misconduct in the performance of such act.

            (N) Neither the Trustee nor the Securities Agent shall be required
to give any bond or surety in respect of the execution of the powers granted
hereunder.

      7.03 INDIVIDUAL RIGHTS OF TRUSTEE AND THE SECURITIES AGENT.

            The Trustee in its individual or any other capacity may become the
owner or pledgee of Securities and may otherwise deal with the Company or any of
its Affiliates with the same rights the Trustee would have if it were not
Trustee. Any Securities Agent may do the same with like rights. The Trustee,
however, must comply with SECTIONS 7.10 and 7.11.

      7.04 DISCLAIMER OF THE TRUSTEE AND THE SECURITIES AGENT.

            Neither the Trustee nor the Securities Agent makes any
representation as to the validity or adequacy of this Indenture or the
Securities; neither the Trustee nor the Securities Agent shall be accountable
for the Company's use of the proceeds from the Securities; and the Trustee shall
not be responsible for any statement in the Securities other than its
certificate of authentication.

      7.05 NOTICE OF DEFAULTS.

            If a Default or Event of Default occurs and is continuing as to
which the Trustee has received notice pursuant to the provisions of this
Indenture, or as to which a Responsible Officer of the Trustee shall have actual
knowledge, then the Trustee shall mail to each Holder a notice of the Default or
Event of Default within thirty (30) days after receipt of such notice or after
acquiring such knowledge, as applicable, unless such Default or Event of Default
has been cured or waived; provided, however, that, except in the case of a
Default or Event of Default in payment of any amounts due with respect to any
Security, the Trustee may withhold such notice if, and so long as it in good
faith determines that, withholding such notice is in the best interests of
Holders.

      7.06 REPORTS BY TRUSTEE TO HOLDERS.

            Within sixty (60) days after each May 15, beginning with May 15,
2007, the Trustee shall mail to each Securityholder if required by TIA Section
313(a) a brief report dated as of such May 15

                                       -45-
<PAGE>

that complies with TIA Section 313(c). In such event, the Trustee also shall
comply with TIA Section 313(b).

            A copy of each report at the time of its mailing to Securityholders
shall be mailed by first class mail to the Company and filed by the Trustee with
the SEC and each stock exchange, if any, on which the Securities are listed. The
Company shall promptly notify the Trustee of the listing or delisting of the
Securities on or from any stock exchange.

      7.07 COMPENSATION AND INDEMNITY.

            The Company shall pay to the Trustee and the Securities Agent from
time to time such compensation for their services as shall be agreed upon in
writing. Neither the Trustee's nor the Securities Agent's compensation shall be
limited by any law on compensation of a trustee of an express trust. The Company
shall reimburse the Trustee and the Securities Agent upon request for all
reasonable out-of-pocket expenses incurred by them pursuant to, and in
accordance with, any provision hereof. Such expenses shall include the
reasonable compensation and out-of-pocket expenses of the agents and counsel of
the Trustee and the Securities Agent.

            The Company shall indemnify each of the Trustee and the Securities
Agent against any and all loss, liability, damage, claim or expense (including
the reasonable fees and expenses of counsel and taxes other than franchise taxes
and taxes based upon, measured by or determined by the income of the Trustee or
the Securities Agent) incurred by it in connection with the acceptance or
administration of this trust and the performance of its duties hereunder,
including the reasonable costs and expenses of defending itself against any
claim (whether asserted by the Company, any Holder or any other Person) or
liability in connection with the exercise or performance of any of its powers
and duties hereunder. The Company need not pay any settlement made without its
consent, which consent shall not be unreasonably withheld or delayed. Each of
the Trustee and the Securities Agent shall notify the Company promptly of any
claim for which it may seek indemnification. Failure by the Trustee and/or the
Securities Agent to so notify the Company shall not relieve the Company of its
obligations hereunder. The Company need not reimburse any expense or indemnify
against any loss or liability incurred by the Trustee or the Securities Agent
through the negligence, bad faith or willful misconduct of the Trustee or the
Securities Agent as the case may be and as determined by a court of competent
jurisdiction in a final decision.

            Notwithstanding anything herein to the contrary, to the extent
permitted by the TIA, in no event shall the Trustee or the Securities Agent be
liable for special, indirect or consequential losses or damages of any kind
whatsoever (including, without limitation, lost profits), even if the Trustee or
the Securities Agent, as applicable, has been advised of the likelihood of such
losses or damages and regardless of the form of action.

            To secure the Company's payment obligations in this SECTION 7.07,
the Trustee and the Securities Agent shall have a lien prior to the Securities
on all money or property held or collected by the Trustee or the Securities
Agent, except that held in trust to pay amounts due on particular Securities.

                                       -46-
<PAGE>

            The indemnity obligations of the Company with respect to the Trustee
and the Securities Agent provided for in this SECTION 7.07 shall survive any
resignation or removal of the Trustee or the Securities Agent, as applicable.

            When the Trustee or the Securities Agent incurs expenses or renders
services after an Event of Default specified in SECTION 6.01(VIII) or (IX)
occurs, the expenses and the compensation for the services are intended to
constitute expenses of administration under any Bankruptcy Law.

      7.08 REPLACEMENT OF TRUSTEE OR THE SECURITIES AGENT.

            A resignation or removal of the Trustee or the Securities Agent and
appointment of a successor Trustee or successor Securities Agent shall become
effective only upon such successor's acceptance of appointment as provided in
this SECTION 7.08.

            Each of the Trustee and the Securities Agent may resign by so
notifying the Company in writing thirty (30) Business Days prior to such
resignation. The Holders of a majority in aggregate principal amount of the
Securities then outstanding may remove the Trustee or the Securities Agent by so
notifying the Trustee or the Securities Agent, as applicable, and the Company in
writing and may appoint a successor Trustee or successor Securities Agent with
the Company's consent. The Company may remove the Trustee or the Securities
Agent if:

                  (i) the Trustee or the Securities Agent, as applicable, fails
            to comply with SECTION 7.10; or

                  (ii) the Trustee or the Securities Agent, as applicable, is
            adjudged a bankrupt or an insolvent; or

                  (iii) a receiver or other public officer takes charge of the
            Trustee or the Securities Agent, as applicable, or its property; or

                  (iv) the Trustee or the Securities Agent, as applicable,
            becomes incapable of acting.

            If the Trustee or the Securities Agent resigns or is removed or if a
vacancy exists in the office of Trustee or of the Securities Agent for any
reason, the Company shall promptly appoint a successor Trustee or Securities
Agent, as the case may be.

            If a successor Trustee or successor Securities Agent, as applicable,
does not take office within thirty (30) days after the retiring Trustee or
retiring Securities Agent, as applicable, resigns or is removed, the retiring
Trustee or retiring Securities Agent, as applicable, may, at the Company's
expense, and the Company or the Holders of at least ten percent (10%) in
aggregate principal amount of the outstanding Securities may, petition any court
of competent jurisdiction for the appointment of a successor Trustee or
successor Securities Agent, as applicable.

            If the Trustee or the Securities Agent fails to comply with SECTION
7.10, the Company or any Holder may petition any court of competent jurisdiction
for the removal of the Trustee or the

                                       -47-
<PAGE>

Securities Agent, as applicable, and the appointment of a successor Trustee or
successor Securities Agent, as applicable.

            Each successor Trustee or successor Securities Agent shall deliver a
written acceptance of its appointment to the retiring Trustee or retiring
Securities Agent, as applicable, and to the Company. Thereupon, the resignation
or removal of the retiring Trustee or the retiring Securities Agent, as
applicable, shall become effective, and the successor Trustee or successor
Securities Agent, as applicable, shall have all the rights, powers and duties of
the Trustee or the Securities Agent, as applicable, under this Indenture. The
successor Trustee or successor Securities Agent, as applicable, shall mail a
notice of its succession to Securityholders. The retiring Trustee or retiring
Securities Agent, as applicable, shall promptly transfer all property held by it
as Trustee or Securities Agent, as applicable, to the successor Trustee or
successor Securities Agent, as applicable, subject to the lien provided for in
SECTION 7.07. Notwithstanding any replacement of the Trustee pursuant to this
Section 7.08, the Company's obligations under Section 7.07 hereof shall continue
for the benefit of the retiring Trustee.

      7.09 SUCCESSOR TRUSTEE BY MERGER, ETC.

            If the Trustee or the Securities Agent consolidates with, merges or
converts into, or transfers all or substantially all of its corporate trust
business to, another corporation, the successor corporation without any further
act shall be the successor Trustee or successor Securities Agent, as applicable,
if such successor corporation is otherwise eligible hereunder.

      7.10 ELIGIBILITY; DISQUALIFICATION.

            There shall at all times be a Trustee and a Securities Agent
hereunder, each of which (A) is an entity organized and doing business under the
laws of the United States of America or of any state thereof, (B) is authorized
under such laws to exercise corporate trustee power, (C) is subject to
supervision or examination by federal or state authorities and (D) has a
combined capital and surplus of at least $50 million as set forth in its most
recent published annual report of condition. The Trustee shall comply with TIA
Section 310(b). Nothing in this Indenture shall prevent the Trustee from filing
with the SEC the application referred to in the penultimate paragraph of TIA
Section 310(b).

      7.11 PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY.

            The Trustee shall comply with TIA Section 311(a), excluding any
creditor relationship listed in TIA Section 311(b). A Trustee who has resigned
or been removed shall be subject to TIA Section 311(a) to the extent indicated
therein.

                          VIII. DISCHARGE OF INDENTURE

      8.01 TERMINATION OF THE OBLIGATIONS OF THE COMPANY.

            This Indenture shall cease to be of further effect if (a) either (i)
all outstanding Securities (other than Securities replaced pursuant to SECTION
2.07 hereof) have been delivered to the Securities Agent for cancellation or
(ii) all outstanding Securities have become due and payable

                                       -48-
<PAGE>

at their scheduled maturity or upon Purchase at Holder's Option, Redemption or
Repurchase Upon Fundamental Change, and in either case the Company irrevocably
deposits, prior to the applicable due date, with the Paying Agent (if the Paying
Agent is not the Company or any of its Affiliates) cash sufficient to pay all
amounts due and owing on all outstanding Securities (other than Securities
replaced pursuant to SECTION 2.07 hereof) on the Maturity Date or an Option
Purchase Date, Redemption Date or Fundamental Change Repurchase Date, as the
case may be; (b) the Company pays to the Trustee and the Securities Agent all
other sums payable hereunder by the Company; (c) no Default or Event of Default
with respect to the Securities shall exist on the date of such deposit; (d) such
deposit will not result in a breach or violation of, or constitute a Default or
Event of Default under, this Indenture; and (e) the Company has delivered to the
Trustee and the Securities Agent an Officer's Certificate and an Opinion of
Counsel, each stating that all conditions precedent provided for herein relating
to the satisfaction and discharge of this Indenture have been complied with;
provided, however, that SECTIONS 2.02, 2.03, 2.04, 2.05, 2.06, 2.07, 2.08, 2.15,
2.16, 2.17, 3.05, 3.09, 3.10, 4.01, 4.02, 4.05, 7.07 and 7.08 and ARTICLES VIII
and X shall survive any discharge of this Indenture until such time as the
Securities have been paid in full and there are no Securities outstanding.

      8.02 APPLICATION OF TRUST MONEY.

            The Trustee or Paying Agent, as applicable, shall hold in trust all
money deposited with it pursuant to SECTION 8.01 and shall apply such deposited
money through the Paying Agent and in accordance with this Indenture to the
payment of amounts due on the Securities.

      8.03 REPAYMENT TO COMPANY.

            The Trustee and the Paying Agent shall promptly notify the Company
of, and pay to the Company upon the request of the Company, any excess money
held by them at any time. The Trustee or the Paying Agent, as the case may be,
shall provide written notice to the Company of any money that has been held by
it and has, for a period of two (2) years, remained unclaimed for the payment of
the principal of, or any accrued and unpaid interest on, the Securities. The
Trustee and the Paying Agent shall pay to the Company upon the written request
of the Company any money held by them for the payment of the principal of,
premium, if any, or any accrued and unpaid interest or additional interest on,
the Securities that remains unclaimed for two (2) years; provided, however, that
the Trustee or such Paying Agent, before being required to make any such
repayment, may, at the expense of the Company, cause to be published (in no
event later than five (5) days after the Company's written request for
repayment) once in a newspaper of general circulation in the City of New York or
cause to be mailed to each Holder, notice stating that such money remains
unclaimed and that, after a date specified therein, which shall not be less than
thirty (30) days from the date of such publication or mailing, any unclaimed
balance of such money then remaining will be repaid to the Company. After
payment to the Company, Securityholders entitled to the money must look to the
Company for payment as general creditors, subject to applicable law, and all
liability of the Trustee and the Paying Agent with respect to such money and
payment shall, subject to applicable law, cease.

      8.04 REINSTATEMENT.

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<PAGE>

            If the Trustee or Paying Agent is unable to apply any money in
accordance with SECTIONS 8.01 and 8.02 by reason of any legal proceeding or by
reason of any order or judgment of any court or governmental authority
enjoining, restraining or otherwise prohibiting such application, the
obligations of the Company under this Indenture and the Securities shall be
revived and reinstated as though no deposit had occurred pursuant to SECTIONS
8.01 and 8.02 until such time as the Trustee or Paying Agent is permitted to
apply all such money in accordance with SECTIONS 8.01 and 8.02; provided,
however, that if the Company has made any payment of amounts due with respect to
any Securities because of the reinstatement of its obligations, then the Company
shall be subrogated to the rights of the Holders of such Securities to receive
such payment from the money held by the Trustee or Paying Agent.

                                 IX. AMENDMENTS

      9.01 WITHOUT CONSENT OF HOLDERS.

            The Company may amend or supplement this Indenture or the Securities
without notice to or the consent of any Securityholder:

                  (i) to comply with SECTIONS 5.01 and 10.11;

                  (ii) to make any changes or modifications to this Indenture
            necessary in connection with the registration of the public offer
            and sale of the Securities under the Securities Act pursuant to the
            Registration Rights Agreement or the qualification of this Indenture
            under the TIA;

                  (iii) to evidence and provide the acceptance to the
            appointment of a successor Trustee under this Indenture;

                  (iv) to secure the obligations of the Company in respect of
            the Securities;

                  (v) to add to the covenants of the Company described in this
            Indenture for the benefit of Securityholders or to surrender any
            right or power conferred upon the Company;

                  (vi) to make provisions with respect to adjustments to the
            Conversion Rate as required by this Indenture or to increase the
            Conversion Rate in accordance with this Indenture; and

                  (vii) to make any changes of a formal, minor or technical
            nature or necessary to correct a manifest error or to comply with
            mandatory provisions of applicable law as evidenced by an Opinion of
            Counsel as long as such change does not adversely affect the rights
            of the Holders of the Securities in any material respect.

            In addition, the Company, the Trustee and the Securities Agent may
enter into a supplemental indenture without the consent of Holders of the
Securities to cure any ambiguity, defect, omission or inconsistency in this
Indenture in a manner that does not, individually or in the aggregate with all
other modifications made or to be made to the Indenture, adversely affect the
rights of any Holder in any material respect.

                                       -50-
<PAGE>

      9.02 WITH CONSENT OF HOLDERS.

            The Company may amend or supplement this Indenture or the Securities
with the written consent of the Holders of at least a majority in aggregate
principal amount of the outstanding Securities. Subject to SECTIONS 6.04 and
6.07, the Holders of a majority in aggregate principal amount of the outstanding
Securities may, by notice to the Trustee, waive compliance by the Company with
any provision of this Indenture or the Securities without notice to any other
Securityholder. Notwithstanding anything herein to the contrary, without the
consent of each Holder of each outstanding Security affected, an amendment,
supplement or waiver, including a waiver pursuant to SECTION 6.04, may not:

                  (i) change the stated maturity of the principal of, or the
            payment date of any installment of interest or additional interest
            on any Security;

                  (ii) reduce the principal amount of, or any premium, interest
            or additional interest on, any Security;

                  (iii) change the place, manner or currency of payment of
            principal of, or any premium, interest or additional interest on,
            any Security;

                  (iv) impair the right to institute suit for the enforcement of
            any payment on, or with respect to, or of the conversion of, any
            Security;

                  (v) modify, in a manner adverse to Holders, the provisions
            with respect to the right of Holders pursuant to ARTICLE III to
            require the Company to purchase Securities on an Option Purchase
            Date or to repurchase Securities upon the occurrence of a
            Fundamental Change;

                  (vi) modify the provisions of SECTION 2.18 in a manner adverse
            to Holders;

                  (vii) adversely affect the right of Holders to convert
            Securities in accordance with ARTICLE X;

                  (viii) reduce the percentage of the aggregate principal amount
            of the outstanding Securities whose Holders must consent to a
            modification to or amendment of any provision of this Indenture or
            the Securities;

                  (ix) reduce the percentage of the aggregate principal amount
            of the outstanding Securities whose Holders must consent to a waiver
            of compliance with any provision of this indenture or the Securities
            or a waiver of any Default or Event of Default; or

                  (x) modify the provisions of this Indenture with respect to
            modification and waiver (including waiver of a Default or an Event
            of Default), except to increase the percentage required for
            modification or waiver or to provide for consent of each affected
            Holder.

            Promptly after an amendment, supplement or waiver under SECTION 9.01
or this SECTION 9.02 becomes effective, the Company shall mail, or cause to be
mailed, to

                                       -51-
<PAGE>

Securityholders a notice briefly describing such amendment, supplement or
waiver. Any failure of the Company to mail such notice shall not in any way
impair or affect the validity of such amendment, supplement or waiver.

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

      9.03 COMPLIANCE WITH TRUST INDENTURE ACT.

            Every amendment, waiver or supplement to this Indenture or the
Securities shall comply with the TIA as then in effect.

      9.04 REVOCATION AND EFFECT OF CONSENTS.

            Until an amendment, supplement or waiver becomes effective, a
consent to it by a Holder is a continuing consent by the Holder and every
subsequent Holder of a Security or portion of a Security that evidences the same
debt as the consenting Holder's Security, even if notation of the consent is not
made on any Security. However, any such Holder or subsequent Holder may revoke
the consent as to its Security or portion of a Security if the Trustee receives
the notice of revocation before the date the amendment, supplement or waiver
becomes effective. An amendment, supplement or waiver becomes effective in
accordance with its terms and thereafter binds every Holder.

            After an amendment, supplement or waiver becomes effective with
respect to the Securities, it shall bind every Holder unless such amendment,
supplement or waiver makes a change that requires, pursuant to SECTION 9.02, the
consent of each Holder affected. In that case, the amendment, supplement or
waiver shall bind each Holder of a Security who has consented to it and,
provided that notice of such amendment, supplement or waiver is reflected on a
Security that evidences the same debt as the consenting Holder's Security, every
subsequent Holder of a Security or portion of a Security that evidences the same
debt as the consenting Holder's Security.

            Nothing in this SECTION 9.04 shall impair the Company's rights
pursuant Section 9.01 to amend this Indenture or the Securities without the
consent of any Securityholder in the manner set forth in, and permitted by, such
SECTION 9.01.

      9.05 NOTATION ON OR EXCHANGE OF SECURITIES.

            If an amendment, supplement or waiver changes the terms of a
Security, the Trustee may require the Holder of the Security to deliver it to
the Trustee. The Trustee may place an appropriate notation on the Security as
directed and prepared by the Company about the changed terms and return it to
the Holder. Alternatively, if the Company so determines, the Company in exchange
for the Security shall issue and the Trustee shall, upon receipt of a Company
Order, authenticate a new Security that reflects the changed terms.

                                       -52-
<PAGE>

      9.06 TRUSTEE AND SECURITIES AGENT PROTECTED.

            The Trustee and the Securities Agent shall sign any amendment,
supplemental indenture or waiver authorized pursuant to this ARTICLE IX;
provided, however, that neither the Trustee nor the Securities Agent need sign
any amendment, supplement or waiver authorized pursuant to this ARTICLE IX that
adversely affects the rights, duties, liabilities or immunities of the Trustee
or the Securities Agent, as applicable. Each of the Trustee and the Securities
Agent shall be entitled to receive and conclusively rely upon an Opinion of
Counsel as to legal matters and an Officer's Certificate as to factual matters
that any supplemental indenture, amendment or waiver is permitted or authorized
pursuant to this Indenture.

      9.07 EFFECT OF SUPPLEMENTAL INDENTURES.

            Upon the due execution and delivery of any supplemental indenture in
accordance with this ARTICLE IX, this Indenture shall be modified in accordance
therewith, and such supplemental indenture shall form a part of this Indenture
for all purposes, and, except as set forth in SECTIONS 9.02 and 9.04, every
Holder of Securities shall be bound thereby.

                                 X. CONVERSION

      10.01 CONVERSION PRIVILEGE; RESTRICTIVE LEGENDS.

            (A) Subject to the provisions of ARTICLE III, the Securities shall
be convertible into cash, ADSs or a combination of cash and ADSs in accordance
with this ARTICLE X and as set forth below if any of the following conditions
are satisfied:

                  (i) Conversion Based on Closing Sale Price of ADSs. The
            Securities may be surrendered for conversion into cash, ADSs or a
            combination of cash and ADSs on any Business Day of a calendar
            quarter after the calendar quarter ending March 31, 2007, if the
            Closing Sale Price for each of twenty (20) or more Trading Days in a
            period of thirty (30) consecutive Trading Days ending on the last
            Trading Day of the immediately preceding calendar quarter exceeds
            one hundred and twenty percent (120%) of the Conversion Price of the
            Securities in effect on the last Trading Day of the immediately
            preceding calendar quarter. Solely for purposes of determining
            whether the Securities shall have become convertible pursuant to
            this SECTION 10.01(A)(i), the Board of Directors shall, in its good
            faith determination, which shall be described in a Board Resolution,
            make appropriate adjustments to the Closing Sale Prices and/or such
            Conversion Price used to determine whether the Securities shall have
            become convertible pursuant to this SECTION 10.01(A)(i) to account
            for any adjustments to the Conversion Rate which shall have become
            effective, or any event requiring an adjustment to the Conversion
            Rate where the Ex Date of such event occurs, during the period of
            thirty (30) consecutive Trading Days ending on the last Trading Day
            of the immediately preceding calendar quarter.

                  (ii) Conversion Upon Satisfaction of Trading Price Condition.
            The Securities may be surrendered for conversion into cash, ADSs or
            a combination of cash and ADSs during the five (5) consecutive
            Business Days immediately after any five (5) consecutive Trading Day
            period (such five (5) consecutive Trading Day period, the

                                       -53-
<PAGE>

            "NOTE MEASUREMENT PERIOD") in which the average Trading Price per
            $1,000 principal amount of the Securities was equal to or less than
            ninety seven percent (97%) of the average Conversion Value (as
            defined below) during the Note Measurement Period (such condition,
            the "TRADING PRICE Condition"). The Bid Solicitation Agent shall not
            have any obligation to determine the Trading Price unless the
            Company has requested such determination in writing, and the Company
            shall have no obligation to make such request unless a Holder
            provides the Company with reasonable evidence that the Trading Price
            per $1,000 principal amount of the Securities would be equal to or
            less than ninety seven percent (97%) of the product of the Closing
            Sale Price and the Conversion Rate. Upon receipt of such evidence,
            the Company shall instruct the Bid Solicitation Agent in writing to
            determine the Trading Price per $1,000 principal amount of the
            Securities for each of the five (5) successive Trading Days
            immediately after the Company receives such evidence and on each
            Trading Day thereafter until the first Trading Day on which the
            Trading Price Condition is no longer satisfied. For purposes of this
            paragraph, the "CONVERSION VALUE" per $1,000 principal amount of
            Securities, on a given Trading Day, means the product of the Closing
            Sale Price on such Trading Day and the Conversion Rate in effect on
            such Trading Day.

                  (iii) Conversion Based on Redemption. A Security, or portion
            of a Security, which has been called for Redemption pursuant to
            PARAGRAPH 6 of the Securities may be surrendered for conversion into
            cash, ADSs or a combination of cash and ADSs; provided, however,
            that such Security or portion thereof may be surrendered for
            conversion pursuant to this paragraph only until the close of
            business on the third (3rd) Business Day immediately preceding the
            Redemption Date.

                  (iv) Conversion Upon Certain Distributions. If the Company
            takes any action, or becomes aware of any event, that would require
            an adjustment to the Conversion Rate pursuant to SECTIONS 10.05(B),
            10.05(C), 10.05(D) or 10.05(E), the Securities may be surrendered
            for conversion into cash, ADSs or a combination of cash and ADSs
            beginning on the date the Company mails the notice to the Holders as
            provided in SECTION 10.10 (or, if earlier, the date the Company is
            required to mail such notice) and at any time thereafter until the
            close of business on the Business Day immediately preceding the Ex
            Date (as defined in SECTION 10.05(E)), effective date or expiration
            date, as the case may be, of the applicable transaction or until the
            Company announces that such transaction will not take place.

                  (v) Conversion Upon Occurrence of Certain Corporate
            Transactions. If either:

                        (a) a Fundamental Change or a Make-Whole Fundamental
                  Change occurs; or

                        (b) the Company is a party to a consolidation, merger,
                  binding share exchange, reconstruction, amalgamation or other
                  similar arrangement pursuant to which Ordinary Shares
                  (including Ordinary Shares represented by ADSs) would be
                  converted into or exchanged for, or would constitute solely
                  the right to receive, cash, securities or other property,

                                       -54-
<PAGE>

                  then, in each case, the Securities may be surrendered for
                  conversion into cash, ADSs or a combination of cash and ADSs
                  at any time during the period that begins on, and includes,
                  the date that is thirty (30) Scheduled Trading Days prior to
                  the date originally announced by the Company as the
                  anticipated effective date of such transaction (which
                  anticipated effective date the Company shall disclose, in good
                  faith, in the written notice, public announcement and
                  publication referred to in SECTION 10.01(C)) and ends on, and
                  includes, the date that is thirty (30) Business Days after the
                  actual effective date of such transaction; provided, however,
                  that if such transaction is a Make-Whole Fundamental Change,
                  then the Securities may also be surrendered for conversion
                  into cash, ADSs or a combination of cash and ADSs at any time
                  during the Make-Whole Conversion Period applicable to such
                  Make-Whole Fundamental Change; provided, further, that if such
                  transaction is a Fundamental Change, then the Securities may
                  also be surrendered for conversion into cash, ADSs or a
                  combination of cash and ADSs at any time until, and including,
                  the Fundamental Change Repurchase Date applicable to such
                  Fundamental Change.

                  (vi) Conversion During Specified Period. The Securities may be
            surrendered for conversion into cash, ADSs or a combination of cash
            and ADSs at any time during the periods (i) from, and including,
            January 15, 2010 to, and including, the third Business Day preceding
            February 15, 2010, and (ii) from, and including, November 15, 2011
            to, and including, the third Business Day preceding February 15,
            2012.

            (B) The initial Conversion Rate shall be 20.5074 shares of ADSs per
$1,000 principal amount of Securities. The Conversion Rate shall be subject to
adjustment in accordance with this ARTICLE X.

            (C) Whenever any event described in SECTION 10.01 shall occur which
shall causes the Securities to become convertible as provided in this ARTICLE X,
the Company shall promptly deliver, in accordance with SECTION 12.02, written
notice of the convertibility of the Securities to the Trustee, the Securities
Agent, the Conversion Agent and each Holder and shall, as soon practicable, but
in no event later than the open of business on the first Business Day following
the date the Securities shall become convertible as provided in this ARTICLE X
as a result of such event, publicly announce, through a reputable national
newswire service in the United States, and publish on the Company's website,
that the Securities have become convertible. Such written notice, public
announcement and publication shall include:

                  (i) a description of such event;

                  (ii) a description of the periods during which the Securities
            shall be convertible as provided in this ARTICLE X as a result of
            such event;

                  (iii) the anticipated effective date of such event, if
            applicable; and

                  (iv) the procedures Holders must follow to convert their
            Securities in accordance with this ARTICLE X, including the name and
            address of the Conversion Agent.

                                       -55-
<PAGE>

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

            (E) Any ADSs that are issued upon conversion of a Security shall
bear the Private Placement Legend until the earlier of the second anniversary of
the later of the issue date and the last date on which the Company or any
Affiliate was the owner of such shares or the Security (or any predecessor
security) from which such shares were converted (or such shorter period of time
as permitted by Rule 144(k) under the Securities Act or any successor provision
thereunder) (or such longer period of time as may be required under the
Securities Act or applicable state securities laws, as set forth in an Opinion
of Counsel, unless otherwise agreed by the Company and the Holder thereof).

      10.02 CONVERSION PROCEDURE AND PAYMENT UPON CONVERSION.

            (A) To convert a Security, a Holder must satisfy the requirements of
PARAGRAPH 10 of the Securities. Upon conversion of a Holder's Security, the
Company shall deliver cash, ADSs or a combination of cash and ADSs to such
Holder as follows, provided that all Holders' rights with respect to conversion
of the Securities and the Company's obligation to deliver ADSs at the Conversion
Rate upon such conversion (the "CONVERSION OBLIGATION"), are subject, in their
entirety, to the Company' right, in its sole and absolute discretion, to elect
to satisfy such Conversion Obligation in any manner permitted pursuant to this
SECTION 10.02:

                  (i) the Company shall give notice, which shall be irrevocable,
            to Holders through the Conversion Agent of the method it will choose
            to satisfy its Conversion Obligation at any time on or before the
            date that is the second (2nd) Scheduled Trading Day following the
            Conversion Date (such period, the "SETTLEMENT NOTICE PERIOD")
            provided that if the related Conversion Date occurs during the
            period that begins, and includes, the twenty-seventh (27th)
            Scheduled Trading Day preceding February 15, 2012, such notice of
            the Company's election shall be given to Holders no later than the
            twenty-eighth (28th) Scheduled Trading Day prior to February 15,
            2012. If the Company fails to provide notice within the Settlement
            Notice Period, the Company shall satisfy its Conversion Obligation
            only in ADSs (and cash in lieu of fractional ADSs). If the Company
            chooses to satisfy any portion of its Conversion Obligation in cash,
            it will specify the amount to be satisfied in cash as a percentage
            of the Conversion Obligation or as a fixed dollar amount for each
            $1,000 principal amount of the Securities. The Company shall treat
            all Holders converting on the same calendar day in the same manner;
            however, the Company shall not have any obligation to settle
            Conversion Obligation arising on different calendar day as in the
            same manner.

                  (ii) The Company may, in lieu of sending individual notices of
            its election, send one notice, which shall be irrevocable, to all
            Holders (with a copy to the Conversion Agent and the Trustee) of the
            method the Company chooses to satisfy its Conversion Obligation with
            respect to (i) all conversions of Securities that have been selected
            for redemption; and (ii) all conversions of Securities that occur on
            or after the twenty-seventh (27) Scheduled Trading Day preceding
            February 15, 2012.

                                       -56-
<PAGE>

                  (iii) The consideration to be paid upon the conversion of any
            Security ("CONVERSION SETTLEMENT DISTRIBUTION") shall consist of
            cash, ADSs or a combination thereof, as selected by the Company, to
            be computed and delivered as set forth below:

                        (a) if the Company elects to satisfy the entire
                  Conversion Obligation in ADSs, the Conversion Settlement
                  Distribution shall be a number of ADSs equal to (A) the
                  aggregate principal amount of the Securities to be converted
                  divided by $1,000, multiplied by (B) the Conversion Rate, plus
                  cash for any fractional shares pursuant to SECTION 10.02(B);

                        (b) if the Company elects to satisfy the entire
                  Conversion Obligation in cash, the Conversion Settlement
                  Distribution shall be cash in an amount equal to the product
                  of:

                              (1) a number equal to the product of (x) the
                        aggregate principal amount of Securities to be converted
                        divided by $1,000, multiplied by (y) the Conversion
                        Rate; and

                              (2) the average Daily VWAP of the ADSs during the
                        twenty (20) consecutive VWAP Trading Day period
                        beginning on and including: (i) for Securities converted
                        during the period that begins, and includes, the
                        twenty-seventh (27) Scheduled Trading Day immediately
                        preceding February 15, 2012, the twenty-fourth (24)
                        Scheduled Trading Day immediately preceding February 15,
                        2012; and (ii) in all other instances, the second (2)
                        VWAP Trading Day immediately after the Conversion Date
                        (such twenty (20) consecutive VWAP Trading Day period
                        being the "CASH SETTLEMENT AVERAGING PERIOD"); and

                        (c) if the Company elects to satisfy a percentage or a
                  fixed amount (other than 100%) of the Conversion Obligation
                  per $1,000 principal amount of Securities in cash, the
                  Conversion Settlement Distribution shall consist of (1) the
                  amount of cash so elected ("CASH AMOUNT"), provided that if
                  such Cash Amount exceeds the Conversion Amount of the
                  Securities being converted, then the Company shall deliver
                  such Conversion Amount in cash in lieu of such Cash Amount,
                  and (2) a number of ADSs per $1,000 principal amount of
                  Securities equal to the sum, for each VWAP Trading Day of the
                  Cash Settlement Averaging Period, of the greater of:

                              (x) zero, and

                              (y) a number of ADSs determined by the following
                        formula:

(Daily VWAP of ADSs on such VWAP Trading Day x the Conversion Rate) - Cash
                                     Amount
--------------------------------------------------------------------------
                Daily VWAP of ADSs on such VWAP Trading Day x 20

                        (d) The Company shall settle its Conversion Obligation
                  (1) on the fifth (5th) Scheduled Trading Day following the
                  final VWAP Trading Day of the

                                       -57-
<PAGE>

                  related Cash Settlement Averaging Period if it elects to
                  satisfy its Conversion Obligation partially or entirely in
                  cash, or (2) as soon as practicable but in no event later than
                  the fifth (5th) Scheduled Trading Day, after the last day of
                  the Settlement Notice Period (each date of settlement of the
                  Company's Conversion Obligation being a "CONVERSION SETTLEMENT
                  DATE").

                        (e) "CONVERSION AMOUNT" means the average of the
                  products for each VWAP Trading Day of the Cash Settlement
                  Averaging Period of (i) the Conversion Rate in effect on such
                  day multiplied by (ii) the Daily VWAP of the ADSs on such day
                  multiplied by (iii) the aggregate principal amount of
                  Securities to be converted divided by $1,000.

                  "DAILY VWAP" of the ADSs means, for each of the 20 consecutive
                  VWAP Trading Days during each Cash Settlement Averaging
                  Period, the per ADS volume-weighted average price as displayed
                  under the heading "Bloomberg VWAP" on Bloomberg page STP.N
                  equity> AQR (or any equivalent successor page if such page is
                  not available) in respect of the period from the scheduled
                  open of trading on the principal trading market for our ADSs
                  to the scheduled close of trading on such market on such VWAP
                  Trading Day, or if such volume-weighted average price is
                  unavailable, the market value of one ADS on such VWAP Trading
                  Day as the Board of Directors determines in good faith using a
                  volume-weighted method.

                  "VWAP TRADING DAY" means a day during which (i) trading in the
                  ADSs generally occurs on the principal U.S. national
                  securities exchange on which the ADSs are listed and (ii)
                  there is no VWAP Market Disruption Event. If the ADSs are not
                  so listed, then "VWAP Trading Day" means a Business Day.

                  "VWAP MARKET DISRUPTION EVENT" means (i) a failure by the
                  principal U.S. national securities exchange or market on which
                  the ADSs are listed to open for trading during its regular
                  trading session or (ii) the occurrence or existence prior to
                  1:00 p.m. on any Scheduled Trading Day for the ADSs for an
                  aggregate one half-hour period of any suspension or limitation
                  imposed on trading (by reason of movements in price exceeding
                  limits permitted by the stock exchange or otherwise) in the
                  ADSs or in any options contracts or futures contracts relating
                  to the ADSs.

            (B) The Company shall not deliver a fractional ADS upon conversion
of a Security. However, if the Company elects to satisfy the entire Conversion
Obligation with ADSs, the Company shall pay cash for all fractional ADSs
(calculated on an aggregate basis for the Securities surrendered by a Holder for
conversion) based on the Closing Sale Price of the ADS on the last day of the
Settlement Notice Period. Similarly, if the Company elects to satisfy a
percentage or fixed amount of the Conversion Obligation in cash, the Company
shall pay cash for all fractional ADS (calculated on an aggregate basis for the
Securities surrendered by a Holder for conversion) based on the Daily VWAP of
the ADSs on the last VWAP Trading Day of the Cash Settlement Averaging Period.

                                       -58-
<PAGE>

            (C) In the event that the Company elects to settle the Conversion
Obligation in accordance with SECTION 10.02(A)(iii)(a), on and after the
Conversion Date for a Security, the person in whose name the ADSs, if any,
issuable upon conversion of such Security are to be registered shall be treated
as the holder of such ADSs, and all rights of the Holder of such Security shall
terminate, other than the right to receive the Conversion Settlement
Distribution deliverable as provided herein. A Holder of Securities is not
entitled, as such, to any rights of a holder of ADSs until such Holder has
converted its Securities into ADSs (to the extent such Securities are
convertible into ADSs) or is deemed to be a holder of ADSs, as provided in this
SECTION 10.02(C).

            (D) Except as provided in the Securities or in this ARTICLE X, no
payment or adjustment will be made for accrued interest or additional interest
on a converted Security or for dividends on any Ordinary Shares represented by
the ADSs issued on or prior to conversion. If any Holder surrenders a Security
for conversion after the close of business on the record date for the payment of
an installment of interest and prior to the related interest payment date, then,
notwithstanding such conversion, the interest payable with respect to such
Security on such interest payment date shall be paid on such interest payment
date to the Holder of record of such Security at the close of business on such
record date; provided, however, that such Security, when surrendered for
conversion, must be accompanied by payment in cash to the Conversion Agent on
behalf of the Company of an amount equal to the interest payable on such
interest payment date on the portion so converted; provided further, however,
that such payment to the Conversion Agent described in the immediately preceding
proviso in respect of a Security surrendered for conversion shall not be
required if such Security is called for Redemption pursuant to SECTION 3.04 and
PARAGRAPHS 6 AND 7 of the Securities; provided further, that, if the Company
shall have, prior to the Conversion Date with respect to a Security, defaulted
in a payment of interest on such Security, then in no event shall the Holder of
such Security who surrenders such Security for conversion be required to pay
such defaulted interest or the interest that shall have accrued on such
defaulted interest pursuant to SECTION 2.12 or otherwise (it being understood
that nothing in this SECTION 10.02(D) shall affect the Company's obligations
under SECTION 2.12).

            (E) Accrued and unpaid interest (including additional interest, if
any) to the conversion date is deemed to be paid in full with the ADSs issued or
cash paid upon conversion rather than cancelled, extinguished or forfeited.

            (F) If a Holder converts more than one Security at the same time,
the number of full ADSs issuable upon such conversion, if any, shall be based on
the total principal amount of all Securities converted.

            (G) Upon surrender of a Security that is converted in part, the
Trustee shall, upon receipt of a Company order, authenticate for the Holder a
new Security equal in principal amount to the unconverted portion of the
Security surrendered.

            (H) If the last day on which a Security may be converted is a Legal
Holiday in a place where a Conversion Agent is located, the Security may be
surrendered to that Conversion Agent on the next succeeding day that is not a
Legal Holiday.
                                       -59-
<PAGE>

      10.03 TAXES ON CONVERSION.

            If a Holder converts its Security, the Company shall pay any
documentary, stamp or similar issue or transfer tax or duty due on the issue, if
any, of ADSs upon the conversion. However, such Holder shall pay any such tax or
duty which is due because the Holder requests the ADSs to be issued in a name
other than such Holder's name. The Conversion Agent may refuse to deliver any
certificate representing the ADSs to be issued in a name other than such
Holder's name until the Conversion Agent receives certification in writing that
all taxes and duties due because such shares are to be issued in a name other
than such Holder's name have been paid. Nothing herein shall preclude any tax
withholding required by law or regulation within any jurisdiction in which the
Company or any successor are organized or resident for tax purposes or through
which payment is made (each, as applicable, a "RELEVANT TAXING JURISDICTION"),
if such withholding or deduction is required by law or by regulation or
governmental policy having the effect of law. In the event that any such
withholding or deduction is so required, the Company shall pay to the Holder of
each Security such additional amounts ("ADDITIONAL AMOUNTS") as may be necessary
to ensure that the net amount received by the Holder after such withholding or
deduction (and after deducting any taxes on the Additional Amounts) shall equal
the amounts which would have been received by such Holder had no such
withholding or deduction been required, except that no Additional Amounts shall
be payable:

            (A) for or on account of:

                  (i) any tax, duty, assessment or other governmental charge
            that would not have been imposed but for:

                        (a) the existence of any present or former connection
                  between the Holder or beneficial owner of such Security, and
                  the Relevant Taxing Jurisdiction other than merely holding
                  such Security or the receipt of payments thereunder,
                  including, without limitation, such Holder or beneficial owner
                  being or having been a national, domiciliary or resident of
                  such Relevant Taxing Jurisdiction or treated as a resident
                  thereof or being or having been physically present or engaged
                  in a trade or business therein or having or having had a
                  permanent establishment therein;

                        (b) the presentation of such Security (in cases in which
                  presentation is required) more than 30 days after the later of
                  the date on which the payment of the principal of, premium, if
                  any, and interest on, such Security became due and payable
                  pursuant to the terms thereof or was made or duly provided
                  for; or

                        (c) the failure of the Holder or beneficial owner to
                  comply with a timely request from the Company or any
                  successor, addressed to the Holder or beneficial owner, as the
                  case may be, to provide certification, information, documents
                  or other evidence concerning such Holder's or beneficial
                  owner's nationality, residence, identity or connection with
                  the Relevant Taxing Jurisdiction, or to make any declaration
                  or satisfy any other reporting requirement relating to such
                  matters, if and to the extent that due and timely compliance
                  with such request is required by law, regulation or
                  administrative practice of the

                                       -60-
<PAGE>

                  Relevant Taxing Jurisdiction to reduce or eliminate any
                  withholding or deduction as to which Additional Amounts would
                  have otherwise been payable to such Holder;

            (ii) any estate, inheritance, gift, sale, transfer, capital gains,
      excise, personal property or similar tax, assessment or other governmental
      charge;

            (iii) any tax, duty, assessment or other governmental charge that is
      payable otherwise than by withholding from payments under or with respect
      to the Securities; or

            (iv) any combination of taxes, duties, assessments or other
      governmental charges referred to in the preceding clauses (i), (ii) or
      (iii); or

      (B) with respect to any payment of the principal of, or premium, if any,
or interest on, such Security to a Holder, if the Holder is a fiduciary,
partnership or person other than the sole beneficial owner of any payment to the
extent that such payment would be required to be included in the income under
the laws of the Relevant Taxing Jurisdiction, for tax purposes, of a beneficiary
or settlor with respect to the fiduciary, a member of that partnership or a
beneficial owner who would not have been entitled to such Additional Amounts had
that beneficiary, settlor, partner or beneficial owner been the Holder thereof.

      Whenever there is mentioned in any context the payment of principal of,
and any premium or interest on, any Security, such mention shall be deemed to
include payment of Additional Amounts provided for in this Indenture to the
extent that, in such context, Additional Amounts are, were or would be payable
in respect thereof.

  10.04 COMPANY TO PROVIDE ORDINARY SHARES AND ADSS.

      The Company shall at all times maintain out of its authorized but unissued
Ordinary Shares enough Ordinary Shares to permit the issuance of ADSs upon the
conversion, in accordance herewith, of all of the Securities. The ADSs, if any,
due upon conversion of a Global Security shall be delivered by the Company in
accordance with the Depositary's customary practices. All Ordinary Shares
represented by the ADSs which may be issued upon conversion of the Securities
shall be validly issued, fully paid and non-assessable and shall be free of
preemptive or similar rights and free of any lien or adverse claim.

      The Company shall take all such actions and obtain all such approvals and
registrations required for the payment in accordance herewith of ADSs, if any,
deliverable upon the conversion of any Security, including the issuance of
Ordinary Shares represented by such ADSs, the deposit thereof in accordance with
the Deposit Agreement, the acceptance of such ADSs into the book-entry system
maintained by the Depositary and the listing of such ADSs on each national
securities exchange on which the ADSs are then listed.

      The Company shall maintain, as long as the Securities are outstanding, the
effectiveness of a registration statement on Form F-6 relating to the ADSs and
an adequate number of ADSs available for issuance thereunder such that freely
tradeable ADSs can be delivered in accordance herewith upon conversion of the
Securities immediately following the earlier of (i) the effective date of the
Shelf Registration Statement (as defined in the Registration Rights Agreement)
or (ii)

                                       -61-
<PAGE>

February 12, 2009. The Company shall comply with all securities laws regulating
the offer and delivery of ADSs upon conversion of Securities.

      10.05 ADJUSTMENT OF CONVERSION RATE.

            The Conversion Rate shall be adjusted from time to time by the
Company as follows:

            (A) In case the Company shall issue Ordinary Shares as a dividend or
distribution to holders of all or substantially all of the outstanding Ordinary
Shares, or shall effect a share split or share combination, the Conversion Rate
shall be adjusted based on the following formula:

                               CR' = CR(0) x  OS'
                                             -----
                                             OS(0)

            where,

            CR(0) = the Conversion Rate in effect immediately prior to the Ex
            Date for such dividend or distribution or immediately prior to the
            effective date of such share split or combination, as the case may
            be;

            CR' = the Conversion Rate in effect immediately after the Ex Date
            for such dividend or distribution or immediately after the effective
            date of such share split or combination, as the case may be;

            OS(0) = the number of Ordinary Shares outstanding immediately prior
            to the Ex Date for such dividend or distribution or immediately
            prior to the effective date of such share split or combination, as
            the case may be; and

            OS' = the number of Ordinary Shares outstanding immediately after
            giving effect to such dividend or distribution or immediately after
            the effective date of such share split or combination, as the case
            may be.

            Such adjustment shall become effective immediately after 9:00 a.m.,
New York City time, on the Ex Date fixed for such dividend or distribution, or
the effective date for such share split or share combination. If any dividend or
distribution of the type described in this SECTION 10.05(A) is declared but not
so paid or made, or the outstanding Ordinary Shares are not split or combined,
as the case may be, the Conversion Rate shall be immediately readjusted,
effective as of the date the Board of Directors determines not to pay such
dividend or distribution, or split or combine the outstanding Ordinary Shares,
as the case may be, to the Conversion Rate that would then be in effect if such
dividend, distribution, share split or share combination had not been declared.

            (B) In case the Company shall distribute to all or substantially all
holders of its outstanding Ordinary Shares rights or warrants entitling them
(for a period expiring within 45 calendar days after the record date for such
distribution) to subscribe for or purchase Ordinary Shares (directly or in the
form of ADSs) at a price per share less than the Closing Sale Price of the ADSs
divided by the number of Ordinary Shares then represented by each ADS on the

                                       -62-
<PAGE>

Trading Day immediately preceding the declaration date of such distribution, the
Conversion Rate shall be adjusted based on the following formula:

                               CR' = CR(0) x  OS' + X
                                             ---------
                                             OS(0) + Y

            where,

            CR(0) = the Conversion Rate in effect immediately prior to the Ex
            Date for such distribution;

            CR' = the Conversion Rate in effect immediately after the Ex Date
            for such distribution;

            OS(0) = the number of Ordinary Shares outstanding immediately prior
            to the Ex Date for such distribution;

            X = the total number of Ordinary Shares issuable (directly or in the
            form of ADSs) pursuant to such rights or warrants; and

            Y = the number of Ordinary Shares equal to the aggregate price
            payable to exercise such rights or warrants divided by the average
            of each of the Closing Sale Price of the ADSs divided by the number
            of Ordinary Shares then represented by each ADS over the 10
            consecutive Trading Day period ending on the Trading Day immediately
            preceding the Ex Date for such distribution.

            Such adjustment shall be successively made whenever any such rights
or warrants are distributed and shall become effective immediately after the
opening of business on the Ex Date for such distribution. The Company shall not
issue any such rights or warrants in respect of Ordinary Shares held in treasury
by the Company. To the extent that Ordinary Shares are not delivered after the
expiration of such rights or warrants, the Conversion Rate shall be readjusted
to the Conversion Rate that would then be in effect had the adjustments made
upon the issuance of such rights or warrants been made on the basis of delivery
of only the number of Ordinary Shares actually delivered (directly or in the
form of ADSs). If such rights or warrants are not so issued, the Conversion Rate
shall again be adjusted to be the Conversion Rate that would then be in effect
if such Ex Date for such distribution had not been fixed.

            In determining whether any rights or warrants entitle the holders to
subscribe for or purchase Ordinary Shares (directly or in the form of ADSs) at
less than such Closing Sale Price (as divided by the number of Ordinary Shares
then represented by each ADS), and in determining the aggregate offering price
of such Ordinary Shares, there shall be taken into account any consideration
received by the Company for such rights or warrants and any amount payable on
exercise or conversion thereof, the value of such consideration, if other than
cash, to be determined by the Board of Directors.

            (C) In case the Company shall, by dividend or otherwise, distribute
to all or substantially all holders of its Ordinary Shares of any class of Share
Capital of the Company (other than Ordinary Shares as covered by SECTION
10.05(A)), evidences of its Indebtedness or other assets or property of the
Company (including securities, but excluding dividends and

                                       -63-
<PAGE>

distributions covered by SECTION 10.05(B) or 10.05(D) and distributions
described below in this subsection (c) with respect to Spin-Offs) (any of such
shares of Share Capital, Indebtedness, or other asset or property hereinafter in
this SECTION 10.05(C) called the "DISTRIBUTED PROPERTY"), then, in each such
case the Conversion Rate shall be adjusted based on the following formula:

                           CR' = CR(0) x   SP(0)
                                         ---------
                                         SP(0)-FMV

            where,

            CR(0) = the Conversion Rate in effect immediately prior to the Ex
            Date for such distribution;

            CR' = the Conversion Rate in effect immediately after the Ex Date
            for such distribution;

            SP(0) = the average of each of the Closing Sale Price of the ADSs
            divided by the number of Ordinary Shares then represented by each
            ADS over the ten (10) consecutive Trading Day period ending on the
            Trading Day immediately preceding the Ex Date for such distribution;
            and

            FMV = the fair market value as determined by the Board of Directors
            of the shares of Share Capital, evidences of Indebtedness, or other
            assets or property distributed with respect to each outstanding
            Ordinary Share on the Ex Date for such distribution.

            Such adjustment shall become effective immediately prior to the
opening of business on the Ex Date for such distribution; provided that if "FMV"
as set forth above is equal to or greater than "SP(0)" as set forth above, in
lieu of the foregoing adjustment, adequate provision shall be made so that each
Holder of Securities has the right to receive, for each $1,000 principal amount
of Securities, the amount of Distributed Property such holder would have
received had such holder owned a number of Ordinary Shares equal to the
Conversion Rate on the record date for such distribution multiplied by the
number of Ordinary Shares then represented by each ADS, without being required
to convert the Securities. If such distribution is not so paid or made, the
Conversion Rate shall again be adjusted to be the Conversion Rate that would
then be in effect if such dividend or distribution had not been declared. If the
Board of Directors determines "FMV" for purposes of this SECTION 10.05(C) by
reference to the actual or when issued trading market for any securities, it
must in doing so consider the prices in such market over the same period used in
computing the Closing Sale Prices of the ADSs divided by the number of Ordinary
Shares then represented by each ADS over the ten consecutive Trading Day period
ending on the Trading Day immediately preceding the Ex Date for such
distribution.

            With respect to an adjustment pursuant to this SECTION 10.05(C)
where there has been a payment of a dividend or other distribution on the
Ordinary Shares in shares of any class or series, or similar equity interest, in
the Share Capital of or relating to a Subsidiary or other business unit (a
"SPIN-OFF"), the Conversion Rate in effect immediately before 5:00 p.m., New
York City time, on the 10th Trading Day immediately following, and including,
the effective date of the Spin-Off shall be increased based on the following
formula:

                                       -64-
<PAGE>

                           CR' = CR(0) x FMV(0) + MP(0)
                                         --------------
                                              MP(0)

         Where,

         CR(0) = the Conversion Rate in effect immediately prior to the 10th
         Trading Day immediately following the effective date of the Spin-Off;

         CR' = the Conversion Rate in effect immediately after the 10th Trading
         Day immediately following the effective date of the Spin-Off;

         FMV(0) = the average of the Closing Sale Prices of the shares or
         similar equity interest distributed to holders of Ordinary Shares
         applicable to one Ordinary Share over the first 10 consecutive Trading
         Day period immediately following, and including, the effective date of
         the Spin-Off; and

         MP(0) = the average of each of the Closing Sale Price of the ADSs
         divided by the number of Ordinary Shares then represented by each ADS
         on such Trading Day over the first 10 consecutive Trading Day period
         immediately following, and including, the effective date of the
         Spin-Off.

         Such adjustment shall occur on the 10th Trading Day from, and
including, the effective date of the Spin-Off; provided that in respect of any
conversion within the 10 Trading Days immediately following, and including, the
effective date of any Spin-Off, references with respect to the Spin-Off to 10
Trading Days shall be deemed replaced with such lesser number of Trading Days as
have elapsed between the effective date of such Spin-Off and the Conversion Date
in determining the applicable Conversion Rate.

         Rights or warrants distributed by the Company to all holders of
Ordinary Shares, entitling the holders thereof to subscribe for or purchase ADSs
or shares of the Company's Share Capital, including Ordinary Shares (either
initially or under certain circumstances), which rights or warrants, until the
occurrence of a specified event or events ("TRIGGER EVENT"): (i) are deemed to
be transferred with such Ordinary Shares; (ii) are not exercisable; and (iii)
are also issued in respect of future issuances of Ordinary Shares, shall be
deemed not to have been distributed for purposes of this Section (and no
adjustment to the Conversion Rate under this Section shall be required) until
the occurrence of the earliest Trigger Event, whereupon such rights and warrants
shall be deemed to have been distributed and an appropriate adjustment (if any
is required) to the Conversion Rate shall be made under this SECTION 10.05(C).
If any such rights or warrants are subject to events, upon the occurrence of
which such rights or warrants become exercisable to purchase different
securities, evidences of Indebtedness or other assets, then the date of the
occurrence of any and each such event shall be deemed to be the date of
distribution and record date with respect to new rights or warrants with such
rights (and a termination or expiration of the existing rights or warrants
without exercise by any of the holders thereof). In addition, in the event of
any distribution (or deemed distribution) of rights or warrants, or any Trigger
Event or other event (of the type described in the preceding sentence) with
respect thereto that was counted for purposes of calculating a distribution
amount for which an adjustment to the Conversion Rate under this Section was
made, (1) in the case of any such rights or warrants that shall all have been
redeemed or repurchased without exercise by any holders thereof, the

                                       -65-
<PAGE>

Conversion Rate shall be readjusted upon such final redemption or repurchase to
give effect to such distribution or Trigger Event, as the case may be, as though
it were a cash distribution, equal to the per share redemption or repurchase
price received by a holder or holders of Ordinary Shares with respect to such
rights or warrants (assuming such holder had retained such rights or warrants),
made to all holders of Ordinary Shares as of the date of such redemption or
repurchase, and (2) in the case of such rights or warrants that shall have
expired or been terminated without exercise by any holders thereof, the
Conversion Rate shall be readjusted as if such rights and warrants had not been
issued.

            For purposes of this SECTION 10.05(C) and SECTIONS 10.05(A) and
10.05(B), any dividend or distribution to which this SECTION 10.05(C) is
applicable that also includes Ordinary Shares to which SECTION 10.05(A) applies
or rights or warrants to subscribe for or purchase Ordinary Shares (directly or
in the form of ADSs) to which SECTION 10.05(A) or 10.05(B) APPLIES (or both),
shall be deemed instead to be (1) a dividend or distribution of the evidences of
Indebtedness, assets or shares of capital stock other than such Ordinary Shares
or rights or warrants, to which this SECTION 10.05(C) applies (and any
Conversion Rate adjustment required by this SECTION 10.05(C) with respect to
such dividend or distribution shall then be made) immediately followed by (2) a
dividend or distribution of such Ordinary Shares or such rights or warrants (and
any further Conversion Rate adjustment required by SECTION 10.05(A) and 10.05(B)
of this Section with respect to such dividend or distribution shall then be
made), except (A) the Ex Date of such dividend or distribution shall under this
SECTION 10.05(C) be substituted as "the Ex Date" within the meaning of SECTION
10.05(A) and SECTIONS 10.05(A) and 10.05(B) any Ordinary Shares included in such
dividend or distribution shall not be deemed "outstanding immediately prior to
the Ex Date for such dividend or distribution or immediately prior to the
effective date of such share split or combination, as the case may be" within
the meaning of SECTION 10.05(A) or "outstanding immediately prior to the Ex Date
for such distribution" within the meaning of SECTION 10.05(B).

            (D) In case the Company shall pay dividends or make distributions
consisting exclusively of cash to all or substantially all holders of its
Ordinary Shares, the Conversion Rate shall be adjusted based on the following
formula:

                            CR' = CR(0) x   SP(0)
                                          ---------
                                          SP(0) - C

            where,

            CR(0) = the Conversion Rate in effect immediately prior to the Ex
            Date for such distribution;

            CR' = the Conversion Rate in effect immediately after the Ex Date
            for such distribution;

            SP(0) = the Closing Sale Price of the ADSs divided by the number of
            Ordinary Shares then represented by each ADS on the Trading Day
            immediately preceding the Ex Date for such distribution; and

            C = the amount in cash per share distributed to holders of Ordinary
            Shares in such distribution.

                                       -66-
<PAGE>

            Such adjustment shall become effective immediately after the opening
of business on the Ex Date for such dividend or distribution; provided that if
the portion of the cash so distributed applicable to one Ordinary Share is equal
to or greater than SP(0) as set forth above, in lieu of the foregoing
adjustment, adequate provision shall be made so that each Holder of Securities
shall receive on the date on which such cash dividend is distributed to holders
of Ordinary Shares, for each $1,000 principal amount of Securities, the amount
of cash such holder would have received had such holder owned a number of
Ordinary Shares equal to the Conversion Rate on the Ex Date for such
distribution multiplied by the number of Ordinary Shares then represented by
each ADS, without being required to convert the Securities. If such dividend or
distribution is not so paid or made, the Conversion Rate shall again be adjusted
to be the Conversion Rate that would then be in effect if such dividend or
distribution had not been declared.

            For the avoidance of doubt, for purposes of this SECTION 10.05(D),
in the event of any reclassification of the Ordinary Shares, as a result of
which the ADSs represent more than one class of Ordinary Shares, if an
adjustment to the Conversion Rate is required pursuant to this SECTION 10.05(D),
references in this Section to one Ordinary Share or the Closing Sale Price of
one ADS (as divided by the number of Ordinary Shares then represented by each
ADS) shall be deemed to refer to a unit or to the price of a unit consisting of
the number of shares of each class of Ordinary Shares equal to the numbers of
shares of such class issued in respect of one Ordinary Share in such
reclassification. The above provisions of this paragraph shall similarly apply
to successive reclassifications.

            (E) In case the Company or any of its Subsidiaries make a payment in
respect of a tender offer or exchange offer for all or any portion of the
Ordinary Shares, or ADSs representing Ordinary Shares, to the extent that the
cash and value of any other consideration included in the payment per Ordinary
Share, or equivalent payment per Ordinary Share then represented by our ADSs,
exceeds the Closing Sale Price of the ADSs divided by the number of Ordinary
Shares then represented by each ADS on the Trading Day next succeeding the last
date on which tenders or exchanges may be made pursuant to such tender or
exchange offer (as it may be amended), the Conversion Rate shall be increased
based on the following formula:

                            CR' = CR(0) x  AC + (SP' x OS')
                                           ----------------
                                             OS(0) x SP'

            where,

            CR(0) = the Conversion Rate in effect on the date such tender or
            exchange offer expires;

            CR' = the Conversion Rate in effect on the day next succeeding the
            date such tender or exchange offer expires;

            AC = the aggregate value of all cash and any other consideration as
            determined by the Board of Directors paid or payable for the
            Ordinary Shares purchased (directly or in the form of ADSs) in such
            tender or exchange offer;

            OS(0) = the number of Ordinary Shares outstanding immediately prior
            to the date such tender or exchange offer expires;

                                       -67-
<PAGE>

            OS' = the number of Ordinary Shares outstanding immediately after
            the date such tender or exchange offer expires (after giving effect
            to such tender offer or exchange offer); and

            SP' = the Closing Sale Price of the ADSs divided by the number of
            Ordinary Shares then represented by each ADS on the Trading Day next
            succeeding the date such tender or exchange offer expires.

            Such adjustment shall become effective immediately after close of
business on the Trading Day next succeeding the date such tender or exchange
offer expires. If the Company or its Subsidiary is obligated to purchase
Ordinary Shares pursuant to any such tender or exchange offer, but the Company
or its Subsidiary is permanently prevented by applicable law from effecting all
or any such purchases or all or any portion of such purchases are rescinded, the
Conversion Rate shall again be adjusted to be the Conversion Rate that would
then be in effect if such tender or exchange offer had not been made or had only
been made in respect of the purchases that had been effected.

            No adjustment to the Conversion Rate shall be made if the
application of any of the foregoing formulas (other than in connection with a
share combination) would result in a decrease in the Conversion Rate.

            For purposes of this SECTION 10.05 the term "RECORD DATE" shall
mean, with respect to any dividend, distribution or other transaction or event
in which the holders of Ordinary Shares have the right to receive any cash,
securities or other property or in which the Ordinary Shares (or other
applicable security) is exchanged for or converted into any combination of cash,
securities or other property, the date fixed for determination of shareholders
entitled to receive such cash, securities or other property (whether such date
is fixed by the Board of Directors or by statute, contract or otherwise).

            The term "EX DATE," (i) when used with respect to any issuance or
distribution, means the first date on which the ADSs trades the regular way on
the relevant exchange or in the relevant market from which the Closing Sale
Price was obtained without the right to receive such issuance or distribution,
(ii) when used with respect to any share split or combination of shares of
Ordinary Shares, means the first date on which the ADSs trades the regular way
on such exchange or in such market after the time at which such share split or
combination becomes effective, and (iii) when used with respect to any tender
offer or exchange offer means the first date on which the ADSs trades the
regular way on such exchange or in such market after the expiration time of such
tender offer or exchange offer (as it may be amended or extended).

            (F) In addition to those required by SECTION 10.05(A) through
SECTION 10.05(E), and to the extent permitted by applicable law and the
continued listing requirements of the New York Stock Exchange, the Company from
time to time may increase the Conversion Rate by any amount for a period of at
least twenty (20) calendar days or any longer period permitted by law if the
Board of Directors determines that such increase would be in the Company's best
interest. Whenever the Conversion Rate is increased pursuant to the preceding
sentence, the Company shall mail to the Holder of each Security at his last
address appearing on the Register provided for in SECTION 2.05 a notice of the
increase at least 15 calendar days prior to the date the increased Conversion
Rate takes effect, and such notice shall state the increased Conversion Rate and
the period during which it will be in effect. In addition, the Company may also
(but is not

                                       -68-
<PAGE>

required to) increase the Conversion Rate to avoid or diminish any tax to
holders of Ordinary Shares or ADSs or rights to purchase Ordinary Shares or ADSs
in connection with any dividend or distribution of shares (or rights to acquire
shares) or similar event.

            (G) Without limiting the foregoing, no adjustment to the Conversion
Rate need be made

                  (i) upon the issuance of any Ordinary Shares pursuant to any
            future plan providing for the reinvestment of dividends or interest
            payable on securities of the Company and the investment of
            additional optional amounts in Ordinary Shares under any plan;

                  (ii) upon the issuance of any Ordinary Shares, or any option,
            warrant, right or exercisable, exchangeable or convertible security
            to purchase Ordinary Shares, pursuant to any future agreements
            entered into with the Company's suppliers of raw materials or
            machinery as consideration or inducement to enter into such supply
            agreement;

                  (iii) upon the issuance of any Ordinary Shares or options or
            rights to purchase Ordinary Shares pursuant to any present or future
            employee, director or consultant benefit plan or program of or
            assumed by the Company or any of its Subsidiaries;

                  (iv) upon the issuance of any Ordinary Shares pursuant to any
            option, warrant, right, or exercisable, exchangeable or convertible
            security not described in clause (iii) above and outstanding as of
            the date of this Indenture;

                  (v) for a change in the par value of the Ordinary Shares; or

                  (vi) for accrued and unpaid Interest (including any Additional
            Interest).

            (H) No adjustment shall be made for the Company's issuance of
Ordinary Shares (directly or in the form of ADSs) or convertible or exchangeable
securities or rights to purchase Ordinary Shares (directly or in the form of
ADSs) or convertible or exchangeable securities, other than as provided in this
Section.

            (I) In any case in which this Section provides that an adjustment
shall become effective immediately after (1) the Ex Date for an event or (2) the
last date on which tenders or exchanges may be made pursuant to any tender or
exchange offer pursuant to SECTION 10.05(E) of this Section (each an "ADJUSTMENT
DETERMINATION DATE"), the Company may elect to defer until the occurrence of the
applicable Adjustment Event (as hereinafter defined) (x) issuing to the Holder
of any Security converted after such Adjustment Determination Date and before
the occurrence of such Adjustment Event, the additional Conversion Settlement
Distribution or other securities issuable upon such conversion by reason of the
adjustment required by such Adjustment Event over and above the amounts
deliverable upon such conversion before giving effect to such adjustment and (y)
paying to such Holder any amount in cash in lieu of any fractional ADS pursuant
to SECTION 10.02(B). For purposes of this subsection (i), the term "ADJUSTMENT
EVENT" shall mean:

                                       -69-
<PAGE>

                  (i) in any case referred to in clause (1) hereof, the date any
            dividend or distribution of Ordinary Shares (directly or in the form
            of ADSs), shares of Share Capital, evidences of Indebtedness, other
            assets or property or cash is paid or made, the effective date of
            any share split or combination or the date of expiration of any
            rights or warrants, and

                  (ii) in any case referred to in clause (2) hereof, the date a
            sale or exchange of Ordinary Shares (directly or in the form of
            ADSs) pursuant to such tender or exchange offer is consummated and
            becomes irrevocable.

            (J) For the avoidance of doubt, if a holder converts Securities
prior to the effective date of a Fundamental Change, and the Fundamental Change
does not occur, the Holder shall not be entitled to Make-Whole Consideration in
connection with such conversion.

            (K) In the event that the Company elects to settle the Conversion
Obligation in accordance with SECTION 10.02(A)(iii)(c), at and after the close
of business on the last VWAP Trading Day (the "RELEVANT DATE") of the related
Cash Settlement Averaging Period, the Person in whose names any ADSs issuable
upon such conversion are registered shall be treated as the holder of record
thereof on such Relevant Date; provided, however, that if any such ADSs
constitute Make-Whole Consideration, then the Relevant Date with respect to such
shares that constitute Make-Whole Consideration shall instead be deemed to be
the later of (i) the last VWAP Trading Day of the related Cash Settlement
Averaging Period and (ii) the Effective Date of the Make-Whole Fundamental
Change resulting in the Make-Whole Consideration.

            (L) Whenever any provision of this ARTICLE X requires a calculation
of Closing Sale Prices or Daily VWAP over a span of multiple days, the Company
shall make appropriate adjustments to the Conversion Settlement Distribution
(determined in good faith by the Board of Directors) to account for any
adjustment to the Conversion Rate that becomes effective, or any event requiring
an adjustment to the Conversion Rate where the Ex Date of the event occurs, at
any time during the period from which such calculation is to be calculated;
provided that such adjustments shall only be made to the Conversion Settlement
Distribution relating to days prior to the date that the adjustment to the
Conversion Rate becomes effective.

            (M) Before taking any action which would cause an adjustment
reducing the Conversion Rate below the then par value, if any, of the Ordinary
Shares multiplied by the number of Ordinary Shares then represented by each ADS,
the Company shall take all corporate action which it reasonably determines may
be necessary in order that the Company may validly and legally issue Ordinary
Shares represented by the ADSs issuable upon conversion of the Securities at
such adjusted Conversion Rate. The Company covenants that all Ordinary Shares
represented by the ADSs issuable upon conversion of the Securities shall be
fully paid and non-assessable by the Company and free from all taxes, liens and
changes with respect to the issue thereof.

            (N) Whenever the Conversion Rate is adjusted as herein provided:

                  (i) The Company shall compute the adjusted Conversion Rate in
            accordance with SECTION 10.05 and shall prepare a certificate signed
            by the Chief Financial Officer of

                                       -70-
<PAGE>

            the Company setting forth the adjusted Conversion Rate and showing
            in reasonable detail the facts upon which such adjustment is based,
            and such certificate shall promptly be filed with the Trustee and
            with each Conversion Agent (if other than the Trustee); and

                  (ii) Upon each such adjustment, a notice stating that the
            Conversion Rate has been adjusted and setting forth the adjusted
            Conversion Rate shall be required, such notice shall be provided by
            the Company to all Holders in accordance with SECTION 12.02.

      10.06 NO ADJUSTMENT.

            Notwithstanding anything to the contrary in SECTION 10.05, no
adjustment in the Conversion Rate pursuant to SECTION 10.05 shall be required
until cumulative adjustments amount to one percent (1%) or more of the
Conversion Rate as last adjusted (or, if never adjusted, the initial Conversion
Rate); provided, however, that any adjustments to the Conversion Rate which by
reason of this SECTION 10.06 are not required to be made shall be carried
forward and taken into account in any subsequent adjustment to the Conversion
Rate; provided further, that (i) if the Company shall mail a notice of
Redemption pursuant to SECTION 3.04, or if a Fundamental Change or Make-Whole
Fundamental Change occurs, or if the Securities shall become convertible
pursuant to SECTION 10.01(A)(iv) or SECTION 10.01(A)(v), (ii) on February 12 of
each year, and (iii) on the date that is twenty-four (24) Scheduled Trading Days
prior to, and on each VWAP Trading Day thereafter until, February 15, 2012 any
adjustments to the Conversion Rate that have been, and at such time remain,
deferred pursuant to this SECTION 10.06 shall be given effect, and such
adjustments, if any, shall no longer be carried forward and taken into account
in any subsequent adjustment to the Conversion Rate. All calculations under this
ARTICLE X shall be made to the nearest cent or to the nearest one-millionth of
an ADS, as the case may be.

            If any rights, options or warrants issued by the Company and
requiring an adjustment to the Conversion Rate in accordance with SECTION 10.05
are only exercisable upon the occurrence of certain triggering events, then the
Conversion Rate will not be adjusted as provided in SECTION 10.05 until the
earliest of such triggering event occurs. Upon the expiration or termination of
any such rights, options or warrants without the exercise of such rights,
options or warrants, the Conversion Rate then in effect shall be adjusted
immediately to the Conversion Rate which would have been in effect at the time
of such expiration or termination had such rights, options or warrants, to the
extent outstanding immediately prior to such expiration or termination, never
been issued.

            If any dividend or distribution is declared and the Conversion Rate
is adjusted pursuant to SECTION 10.05 on account of such dividend or
distribution, but such dividend or distribution is thereafter not paid or made,
the Conversion Rate shall again be adjusted to the Conversion Rate which would
then be in effect had such dividend or distribution not been declared.

            No adjustment to the Conversion Rate need be made pursuant to
SECTION 10.05 for a transaction if Holders are to participate in the transaction
without conversion on a basis and with notice that the Board of Directors
determines in good faith to be fair and appropriate in light of

                                       -71-
<PAGE>

the basis and notice on which holders of ADSs participate in the transaction
(which determination shall be described in a Board Resolution).

            Notwithstanding anything herein to the contrary, in no event shall
the Conversion Rate be increased pursuant to SECTION 10.05(b), SECTION 10.05(c),
SECTION 10.05(d) or SECTION 10.05(e) to the extent, but only to the extent, such
increase shall cause the Conversion Rate applicable to such Security to exceed
26.6596 ADSs shares per $1,000 principal amount (the "BCF ADJUSTMENT CAP");
provided, however, that the BCF Adjustment Cap shall be adjusted in the same
manner in which the Conversion Rate is to be adjusted pursuant to this ARTICLE
X.

      10.07 OTHER ADJUSTMENTS.

            In the event that, as a result of an adjustment made pursuant to
SECTION 10.05 hereof, the Holder of any Security thereafter surrendered for
conversion may, subject to the Company's right of election pursuant to SECTION
10.02, become entitled to receive any shares or securities other than ADSs, or
if the Ordinary Shares represented by such ADSs become converted, exchanged,
reclassified or otherwise changed into other shares or securities, thereafter
the Conversion Rate of such other shares so receivable upon conversion of any
Security shall be subject to adjustment from time to time in a manner and on
terms as nearly equivalent as practicable to the provisions with respect to ADSs
(taking into account the number of Ordinary Shares represented by each ADS
immediately prior to such adjustment of the Conversion Rate or such change in
the ADSs or Ordinary Shares, as the case may be) contained in this ARTICLE X.

            In the event that the facility for the ADSs maintained with the ADS
depositary pursuant to Deposit Agreement is terminated for any reason, but such
event does not constitute a Termination of Trading because the Ordinary Shares
are then listed for trading on a U.S. national securities exchange, all
references herein and in the Securities to the "ADSs", the "Closing Sale Price"
and the "Daily VWAP" will be deemed to refer to the "Ordinary Shares", and the
"Closing Sale Price" and "Daily VWAP" of the Ordinary Shares, respectively, and
other appropriate adjustments will be made to the provisions hereunder and in
the Securities to reflect such change.

            In the event that the facility for the ADSs maintained with the ADS
depositary pursuant to Deposit Agreement is terminated for any reason, but such
event does not constitute a Termination of Trading, then the provisions of
SECTION 3.10 shall apply.

            In the event that the facility for the ADSs maintained with the ADS
depositary pursuant to Deposit Agreement is terminated for any reason (whether
or not such event constitutes a Termination of Trading), Holders' right to
convert Securities into ADSs under this ARTICLE X shall become a right to
convert Securities into Ordinary Shares (subject to the Company's right under
SECTION 10.02 to deliver cash in lieu thereof) at a Conversion Rate, subject to
adjustment from time to time in accordance with this ARTICLE X, equal to (i) the
number of Ordinary Shares represented by each ADS immediately prior to such
termination, multiplied by (ii) the Conversion Rate applicable immediately prior
to such termination, multiplied by (iii) the aggregate principal amount of the
Securities being converted divided by $1,000.

      10.08 ADJUSTMENTS FOR TAX PURPOSES.

                                       -72-
<PAGE>

            Except as prohibited by law the Company may (but is not obligated
to) make such increases in the Conversion Rate, in addition to those required by
SECTION 10.05 hereof, as it determines to be advisable in order that any share
dividend, subdivision of shares, distribution of rights to purchase shares or
securities or distribution of securities convertible into or exchangeable for
shares made by the Company or to holders of Ordinary Shares or ADSs will not be
taxable to the recipients thereof or in order to diminish any such taxation.

      10.09 NOTICE OF ADJUSTMENT.

            Whenever the Conversion Rate is adjusted, the Company shall promptly
mail to Holders at the addresses appearing on the Registrar's books a notice of
the adjustment and file with the Trustee, the Conversion Agent and the
Securities Agent an Officer's Certificate briefly stating the facts requiring
the adjustment and the manner of computing it. The certificate shall be
conclusive evidence of the correctness of such adjustment.

      10.10 NOTICE OF CERTAIN TRANSACTIONS.

            In the event that:

                  (1) the Company takes any action, or becomes aware of any
            event, which would require an adjustment in the Conversion Rate,

                  (2) the Company takes any action that would require a
            supplemental indenture pursuant to SECTION 10.11, or

                  (3) there is a dissolution or liquidation of the Company,

the Company shall mail to Holders at the addresses appearing on the Registrar's
books, and to the Trustee, the Conversion Agent and the Securities Agent, a
written notice stating the proposed Ex Date, effective date or expiration date,
as the case may be, of any transaction referred to in CLAUSE (1), (2) or (3) of
this SECTION 10.10. The Company shall mail such notice at least thirty (30)
Scheduled Trading Days before such date; however, failure to mail such notice or
any defect therein shall not affect the validity of any transaction referred to
in CLAUSE (1), (2) or (3) of this SECTION 10.10.

      10.11 EFFECT OF RECLASSIFICATIONS, BUSINESS COMBINATIONS, ASSET SALES AND
OTHER CORPORATE EVENTS ON CONVERSION PRIVILEGE.

            Except as provided in SECTION 10.14(E), if any of the following
shall occur, namely: (i) any reclassification or change in the Ordinary Shares
represented by the ADSs issuable upon conversion of Securities (other than a
change only 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 Ordinary
Shares), (ii) any consolidation, merger, binding share exchange, reconstruction,
amalgamation or other similar arrangement, or such to which the Company is a
party, other than a merger in which the Company is the continuing Person and
which does not result in any reclassification of, or change (other than a change
in name, or 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) in, the Ordinary
Shares, or (iii) any sale, transfer, lease, conveyance or other disposition of
all or substantially all of the

                                       -73-
<PAGE>

property or assets of the Company, in each case, pursuant to which the Ordinary
Shares would be converted into or exchanged for, or would constitute solely the
right to receive, cash, securities or other property, then the Company or such
successor or purchasing Person, as the case may be, shall execute and deliver to
the Trustee and the Securities Agent a supplemental indenture in form reasonably
satisfactory to the Trustee and the Securities Agent providing that, at and
after the effective time of such reclassification, change, consolidation,
merger, binding share exchange, reconstruction, amalgamation or other similar
arrangement, or such sale, transfer, lease, conveyance or disposition, the
Holder of each Security then outstanding shall have the right to convert such
Security (if otherwise convertible pursuant to this ARTICLE X) into the kind and
amount of cash, securities or other property (collectively, "REFERENCE
PROPERTY") receivable upon such reclassification, change, consolidation, merger,
binding share exchange, reconstruction, amalgamation or other similar
arrangement, or such sale, transfer, lease, conveyance or disposition by a
holder of a number of Ordinary Shares equal to the product of (i) the number of
Ordinary Shares then represented by each ADS, and (ii) a fraction whose
denominator is one thousand (1,000) and whose numerator is the product of the
principal amount of such Security and the Conversion Rate in effect immediately
prior to such reclassification, change, consolidation, merger, binding share
exchange, reconstruction, amalgamation or other similar arrangement, or such
sale, transfer, lease, conveyance or disposition (assuming, if holders of
Ordinary Shares shall have the opportunity to elect the form of consideration to
receive pursuant to such reclassification, change, consolidation, merger,
binding share exchange, reconstruction, amalgamation or other similar
arrangement, or such sale, transfer, lease, conveyance or disposition, that the
Collective Election shall have been made with respect to such election);
provided, however, that at and after the effective time of such
reclassification, change, consolidation, merger, binding share exchange,
reconstruction, amalgamation or other similar arrangement, or such sale,
transfer, lease, conveyance or disposition, the Company shall continue to have
the right to elect in accordance with SECTION 10.02 to deliver cash in full or
partial settlement of the Conversion Obligation pursuant to SECTION 10.02 with
respect to the conversion of any Security and the Conversion Settlement
Distribution deliverable upon the conversion of any Security shall be calculated
based on the fair value of the Reference Property instead of the Closing Sale
Price per Ordinary Share. If holders of Ordinary Shares shall have the
opportunity to elect the form of consideration to receive pursuant to such
reclassification, change, consolidation, merger, binding share exchange,
reconstruction, amalgamation or other similar arrangement, or such sale,
transfer, lease, conveyance or disposition, then the Company shall make adequate
provision to give Holders, treated as a single class, a reasonable opportunity
to elect the form of such consideration for purposes of determining the
composition of the Reference Property referred to in the immediately preceding
sentence, and once such election is made, such election shall apply to all
Holders after the effective time of such reclassification, change,
consolidation, merger, binding share exchange, reconstruction, amalgamation or
other similar arrangement, or such sale, transfer, lease, conveyance or
disposition. The supplemental indenture referred to in the first sentence of
this paragraph shall provide for adjustments of the Conversion Rate which shall
be as nearly equivalent as may be practicable to the adjustments of the
Conversion Rate provided for in this ARTICLE X. The foregoing, however, shall
not in any way affect the right a Holder of a Security may otherwise have,
pursuant to SECTION 10.05(c), SECTION 10.05(h) or SECTION 10.13, to receive
rights or warrants upon conversion or a Security. If, in the case of any such
consolidation, merger, binding share exchange, reconstruction, amalgamation or
other similar arrangement, or such sale, transfer, lease, conveyance or

                                       -74-
<PAGE>

disposition, the cash, securities or other and property receivable thereupon by
a holder of Ordinary Shares includes cash, securities or other property of a
Person other than the successor or purchasing Person, as the case may be, in
such consolidation, merger, binding share exchange, reconstruction, amalgamation
or other similar arrangement, or such sale, transfer, lease, conveyance or
disposition, then such supplemental indenture shall also be executed by such
other Person and shall contain such additional provisions to protect the
interests of the Holders of the Securities as the Board of Directors in good
faith shall reasonably determine necessary by reason of the foregoing (which
determination shall be described in a Board Resolution). The provisions of this
SECTION 10.11 shall similarly apply to successive consolidations, mergers,
binding share exchanges, reconstruction, amalgamation or other similar
arrangement, or successive sales, transfers, leases, conveyances or
dispositions.

            In the event the Company shall execute a supplemental indenture
pursuant to this SECTION 10.11, the Company shall promptly file with the
Trustee, the Conversion Agent and the Securities Agent an Officer's Certificate
briefly stating the reasons therefore, the kind or amount of shares of stock or
securities or property (including cash) receivable by Holders of the Securities
upon the conversion of their Securities after any such reclassification, change,
consolidation, merger, binding share exchange, reconstruction, amalgamation or
other similar arrangement, or such sale, transfer, lease, conveyance or
disposition and any adjustment to be made with respect thereto.

      10.12 DISCLAIMER OF THE TRUSTEE, THE CONVERSION AGENT AND THE SECURITIES
AGENT.

            None of the Trustee, the Conversion Agent or the Securities Agent
shall have any duty to determine when an adjustment under this ARTICLE X should
be made, how it should be made or what such adjustment should be, but each may
accept as conclusive evidence of the correctness of any such adjustment, and
shall be protected in relying upon, the Officer's Certificate with respect
thereto which the Company is obligated to file with the Trustee, the Conversion
Agent and the Securities Agent pursuant to SECTION 10.09 hereof. None of the
Trustee, the Conversion Agent or the Securities Agent makes any representation
as to the validity or value of any securities or assets issued upon conversion
of Securities, and none of them shall be responsible for the failure by the
Company to comply with any provisions of this ARTICLE X.

            None of the Trustee, the Conversion Agent or the Securities Agent
shall be under any responsibility to determine the correctness of any provisions
contained in any supplemental indenture executed pursuant to SECTION 10.11, but
each of them may accept as conclusive evidence of the correctness thereof, and
shall be protected in relying upon, an Opinion of Counsel and the Officer's
Certificate with respect thereto which the Company is obligated to file with the
Trustee and the Securities Agent pursuant to SECTION 10.11 hereof.

      10.13 RIGHTS DISTRIBUTIONS PURSUANT TO ANTI-TAKEOVER PROVISIONS.

            Upon conversion of any Security or a portion thereof, to the extent
the Holder thereof receives ADSs upon such conversion, the Company shall make
provision for such Holder to receive, in addition to, and concurrently with the
delivery of, such ADSs any preferred shares or other securities or rights issued
or distributed to holders of Ordinary Shares by the Board of

                                      -75-
<PAGE>

Directors or the Company pursuant to the anti-takeover provisions in the
Company's Articles of Association, whether or not such preferred shares,
securities or rights were issued or distributed prior to the time of such
conversion, but only to the extent other holders of ADSs would receive such
preferred shares or other securities or rights. In the event that, after the
date hereof, the Company amends, supplements or supersedes the anti-takeover
provisions in its Articles of Association to provide, or if the Board of
Directors approve a resolution, for the issuance or distribution of any such
preferred shares or other securities or rights to holders of Ordinary Shares,
the Company shall provide that the Holders will receive, upon conversion of
their Securities, in addition to the consideration otherwise payable hereunder
upon such conversion, the such shares, securities or rights, but only to the
extent such Holder will receive ADSs upon such conversion and only to the extent
other holders of ADSs would receive such preferred shares, securities or rights.

            Any distribution of preferred shares, securities or rights pursuant
to such anti-takeover provisions or Board Resolution will not result in an
adjustment to the Conversion Rate pursuant to SECTION 10.05(B) and 10.05(C)
above if the Company has made proper provision for Holders to receive, to the
extent they receive ADSs upon conversion hereunder, to also receive such
preferred shares, securities or rights to the same extent as other holders of
ADSs in accordance with the terms of the Deposit Agreement.

      10.14 INCREASED CONVERSION RATE APPLICABLE TO CERTAIN SECURITIES
            SURRENDERED IN CONNECTION WITH MAKE-WHOLE FUNDAMENTAL CHANGES.

          (A) Notwithstanding anything herein to the contrary, the Conversion
Rate applicable to each Security that is surrendered for conversion, in
accordance with this Article X, at any time during the period (the "MAKE-WHOLE
CONVERSION PERIOD") that begins on, and includes, the date that is thirty (30)
Scheduled Trading Days prior to the date originally announced by the Company as
the anticipated effective date of a Make-Whole Fundamental Change (which
anticipated effective date the Company shall disclose, in good faith, in the
written notice, public announcement and publication referred to in SECTION
10.14(D)) and ends on, and includes, the date that is thirty (30) Business Days
after the actual effective date of such Make-Whole Fundamental Change (or, if
such Make-Whole Fundamental Change also constitutes a Fundamental Change, the
Fundamental Change Repurchase Date applicable to such Fundamental Change) shall
be increased to an amount equal to the Conversion Rate that would, but for this
SECTION 10.14, otherwise apply to such Security pursuant to this ARTICLE X, plus
an amount equal to the Make-Whole Applicable Increase; provided, however, that
such increase to the Conversion Rate shall not apply if such Make-Whole
Fundamental Change is announced by the Company but shall not be consummated.

                  The additional consideration payable hereunder on account of
any Make-Whole Conversion Applicable Increase with respect to a Security
surrendered for conversion is herein referred to as the "MAKE-WHOLE
CONSIDERATION."

                  The Make-Whole Consideration due upon a conversion of a
Security by a Holder shall be paid as soon as practicable after the Conversion
Date of such conversion, but in no event later than the later of (1) the
Conversion Settlement Date for such conversion, and (2) the

                                       -76-
<PAGE>

third (3rd) Business Day after the Effective Date of the applicable Make-Whole
Fundamental Change.

                                 EFFECTIVE DATE

<TABLE>
<CAPTION>
                       FEBRUARY  FEBRUARY  FEBRUARY  FEBRUARY  FEBRUARY  FEBRUARY
APPLICABLE PRICE       7, 2007   15, 2008  15, 2009  15, 2010  15, 2011  15, 2012
---------------------  --------  --------  --------  --------  --------  --------
<S>                    <C>       <C>       <C>       <C>       <C>       <C>
$37.51...............    6.15      6.15      6.15      6.15      6.15      6.15
$40.00...............    5.36      5.52      5.47      4.76      4.86      4.49
$45.00...............    3.99      4.01      3.78      3.12      3.10      1.71
$50.00...............    3.00      2.93      2.61      1.93      1.87        --
$55.00...............    2.27      2.16      1.81      1.04      0.99        --
$60.00...............    1.73      1.59      1.25      0.37      0.35        --
$65.00...............    1.32      1.18      0.85        --        --        --
$70.00...............    1.00      0.87      0.58        --        --        --
$75.00...............    0.77      0.64      0.39        --        --        --
$80.00...............    0.58      0.46      0.25        --        --        --
$85.00...............    0.44      0.33      0.16        --        --        --
$90.00...............    0.32      0.24      0.10        --        --        --
$95.00...............    0.24      0.16      0.05        --        --        --
$100.00..............    0.17      0.11      0.03        --        --        --
</TABLE>

            (B) As used herein, "MAKE-WHOLE APPLICABLE INCREASE" shall mean,
with respect to a Make-Whole Fundamental Change, the amount, set forth in the
above table, which corresponds to the effective date of such Make-Whole
Fundamental Change (the "EFFECTIVE DATE") and the Applicable Price of such
Make-Whole Fundamental Change:

                  provided, however, that:

                  (i) if the actual Applicable Price of such Make-Whole
            Fundamental Change is between two (2) prices listed in the table
            above under the column titled "Applicable Price," or if the actual
            Effective Date of such Make-Whole Fundamental Change is between two
            dates listed in the table above in the row immediately below the
            title "Effective Date," then the Applicable Increase for such
            Make-Whole Fundamental Change shall be determined by linear
            interpolation between the Applicable Increases set forth for such
            two prices, or for such two dates based on a three hundred and
            sixty-five (365) day year, as applicable;

                  (ii) if the actual Applicable Price of such Make-Whole
            Fundamental Change is greater than $100.00 per ADS (subject to
            adjustment as provided in SECTION 10.14(B)(iii)), or if the actual
            Applicable Price of such Make-Whole Fundamental Change is less than
            $37.51 per share (subject to adjustment as provided in SECTION
            10.14(B)(iii)), then the Applicable Increase shall be equal to zero
            (0);

                  (iii) if an event occurs that requires, pursuant to this
            ARTICLE X (other than solely pursuant to this SECTION 10.14), an
            adjustment to the Conversion Rate, then, on the date and at the time
            such adjustment is so required to be made, each price set forth in
            the table above under the column titled "Applicable Price" shall be
            deemed to be adjusted so

                                       -77-
<PAGE>

            that such price, at and after such time, shall be equal to the
            product of (1) such price as in effect immediately before such
            adjustment to such price and (2) a fraction whose numerator is the
            Conversion Rate in effect immediately before such adjustment to the
            Conversion Rate and whose denominator is the Conversion Rate to be
            in effect, in accordance with this ARTICLE X, immediately after such
            adjustment to the Conversion Rate;

                  (iv) each Applicable Increase amount set forth in the table
            above shall be adjusted in the same manner in which, and for the
            same events for which, the Conversion Rate is to be adjusted
            pursuant to this ARTICLE X; and

                  (v) in no event shall the Conversion Rate applicable to any
            Security be increased pursuant to this SECTION 10.14 to the extent,
            but only to the extent, such increase shall cause the Conversion
            Rate applicable to such Security to exceed 26.6596 ADSs per $1,000
            principal amount (the "BCF MAKE-WHOLE CAP"); provided, however, that
            the BCF Make-Whole Cap shall be adjusted in the same manner in
            which, and for the same events for which, the Conversion Rate is to
            be adjusted pursuant to this ARTICLE X.

            (C) As used herein, "APPLICABLE PRICE" shall have the following
meaning with respect to a Make-Whole Fundamental Change: (a) if such Make-Whole
Fundamental Change constitutes a Voting Share Change Make-Whole Fundamental
Change or an Ordinary Share Change Make-Whole Fundamental Change and the
consideration (excluding cash payments for fractional ADSs or pursuant to
statutory appraisal rights) for the Ordinary Shares in such Make-Whole
Fundamental Change consists solely of cash, then the "Applicable Price" with
respect to such Make-Whole Fundamental Change shall be equal to the cash amount
paid per Ordinary Share in such Make-Whole Fundamental Change multiplied by the
number of Ordinary Shares then represented by each ADS, and (b) in all other
circumstances, the "Applicable Price" with respect to such Make-Whole
Fundamental Change shall be equal to the average of the Closing Sale Prices per
ADS for the five (5) consecutive Trading Days immediately preceding the
Effective Date of such Make-Whole Fundamental Change, which average shall be
appropriately adjusted by the Board of Directors, in its good faith
determination (which determination shall be described in a Board Resolution), to
account for any adjustment, pursuant hereto, to the Conversion Rate that shall
become effective, or any event requiring, pursuant hereto, an adjustment to the
Conversion Rate where the Ex Date of such event occurs, at any time during such
five (5) consecutive Trading Days.

            (D) At least thirty (30) Scheduled Trading Days before the first
anticipated effective date of each proposed Make-Whole Fundamental Change, the
Company shall mail to each Holder, in accordance with SECTION 12.02, written
notice of, and shall publicly announce, through a reputable national newswire
service in the United States, and publish on the Company's website, the
anticipated effective date of such proposed Make-Whole Fundamental Change. No
later than the third Business Day after the Effective Date of each Make-Whole
Fundamental Change, the Company shall mail, in accordance with SECTION 12.02,
written notice of, and shall publicly announce, through a reputable national
newswire service in the United States, and publish on the Company's website,
such Effective Date and the Applicable Increase applicable to such Make-Whole
Fundamental Change.

                                       -78-
<PAGE>

            (E) For avoidance of doubt, the provisions of this SECTION 10.14
shall not affect or diminish the Company's obligations, if any, pursuant to
ARTICLE IV with respect to a Make-Whole Fundamental Change.

            (F) Nothing in this SECTION 10.14 shall prevent an adjustment to the
Conversion Rate pursuant to SECTION 10.05 in respect of a Make-Whole Fundamental
Change.

                               XI. TAX TREATMENT

      11.01 TAX TREATMENT.

The Company hereby agrees and by purchasing an interest in a Security, each
Holder and each Person (including an entity) that acquires a direct or indirect
beneficial interest in the Security hereby agrees that such Person shall (except
to the extent otherwise required by final administrative or judicial
determinations to the contrary) treat the Securities as indebtedness of the
Company for all U.S. federal income tax purposes.

      11.02 TAX WITHHOLDING OBLIGATIONS.

            By purchasing an interest in a Security, each Holder and each Person
(including an entity) that acquires a direct or indirect beneficial interest in
a Security hereby agrees:

            (A) that the Company may withhold any tax, to the extent it is
required to do so under any law or regulation (whether based on accrued,
constructive or cash income), from any payments of cash or ADSs (including ADSs
to be paid upon conversion) to be made to a Holder or Person holding a direct or
indirect beneficial interest in a Security or in ADSs received upon conversion
of a Security; and

            (B) that if the Company pays any withholding taxes on behalf of a
Holder or Person holding a direct or indirect beneficial interest in a Security,
as a result of an adjustment to the Conversion Rate or a failure to make an
adjustment to the Conversion Rate, the Company may, in its discretion, reduce
any payments to such Holder or Person of cash or ADSs (including any ADSs to be
paid upon conversion) on the Security by the amounts of any such withholding
taxes paid.

                               XII. MISCELLANEOUS

      12.01 TRUST INDENTURE ACT CONTROLS.

            If any provision of this Indenture limits, qualifies or conflicts
with another provision which is required to be included in this Indenture by the
TIA, the required provision of the TIA shall control.

      12.02 NOTICES.

            Any notice or communication by the Company, the Trustee or the
Securities Agent to one another shall be deemed to be duly given if made in
writing and delivered:

            (A) by hand (in which case such notice shall be effective upon
delivery);

                                       -79-
<PAGE>

            (B) by facsimile (in which case such notice shall be effective upon
receipt of confirmation of good transmission thereof); or

            (C) by overnight delivery by a nationally recognized courier service
(in which case such notice shall be effective on the Business Day immediately
after being deposited with such courier service),

            in each case to the other party's address or facsimile number, as
applicable, set forth in this SECTION 12.02. Each of the Company, the Trustee
and the Securities Agent, by notice to the others, may designate additional or
different addresses or facsimile numbers for subsequent notices or
communications.

            Any notice or communication to a Holder shall be mailed to its
address shown on the register kept by the Registrar. Failure to mail a notice or
communication to a Holder or any defect in it shall not affect its sufficiency
with respect to other Holders.

            If a notice or communication is mailed in the manner provided above,
it is duly given, whether or not the addressee receives it.

            If the Company mails a notice or communication to Holders, it shall
mail a copy to the Trustee and the Securities Agent at the same time. If the
Trustee or the Securities Agent is required, pursuant to the express terms of
this Indenture or the Securities, to mail a notice or communication to Holders,
the Trustee or the Securities Agent, as the case may be, shall also mail a copy
of such notice or communication to the Company.

            All notices or communications shall be in writing.

The Company's address is:

Suntech Power Holdings Co., Ltd.
17-6 Changjiang South Road
New District, Wuxi
Jiangsu Province 214028
People's Republic of China
Attn: Chief Financial Officer
Facsimile:  +86-510-8534-4448
Phone: +86-510-8531-8888

The Trustee and Securities Agent's address is:

Wilmington Trust Company
Rodney Square North
1100 N. Market Street
Wilmington, Delaware  19890-0001
Attention: Corporate Capital Markets/Suntech
Facsimile:  302-636-4145
Phone: 302-636-6000

                                       -80-
<PAGE>

      12.03 COMMUNICATION BY HOLDERS WITH OTHER HOLDERS.

            Holders may communicate pursuant to TIA Section 312(h) with other
Holders with respect to their rights under this Indenture or the Securities. The
Company, the Trustee, the Securities Agent, the Registrar and anyone else shall
have the protection of TIA Section 312(c).

      12.04 CERTIFICATE AND OPINION AS TO CONDITIONS PRECEDENT.

            Upon any request or application by the Company to the Trustee or the
Securities Agent to take any action under this Indenture, the Company shall
furnish to the Trustee or the Securities Agent, as applicable:

                  (i) an Officer's Certificate stating that, in the opinion of
            the signatories to such Officer's Certificate, all conditions
            precedent, if any, provided for in this Indenture relating to the
            proposed action have been complied with; and

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

            Each signatory to an Officer's Certificate or an Opinion of Counsel
may (if so stated) rely, effectively, upon an Opinion of Counsel as to legal
matters and an Officer's Certificate or certificates of public officials as to
factual matters, as the case may be, if such signatory reasonably and in good
faith believes in the accuracy of the document relied upon.

      12.05 STATEMENTS REQUIRED IN CERTIFICATE OR OPINION.

            Each Officer's Certificate or Opinion of Counsel with respect to
compliance with a condition or covenant provided for in this Indenture shall
include:

                  (i) a statement that the person making such certificate or
            opinion has read such covenant or condition;

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

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

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

      12.06 RULES BY TRUSTEE AND AGENTS.

                                       -81-
<PAGE>

            The Trustee may make reasonable rules for action by or at a meeting
of Holders. The Registrar, Paying Agent, Securities Agent and Conversion Agent
may make reasonable rules and set reasonable requirements for their respective
functions.

      12.07 LEGAL HOLIDAYS.

            A "BUSINESS DAY" means any weekday that is not a day on which
banking institutions in the City of New York are authorized or obligated to
close. A "LEGAL HOLIDAY" is a day that is not a Business Day. If a payment date
is a Legal Holiday, payment may be made at that place on the next succeeding day
that is not a Legal Holiday, and no interest shall accrue on that payment for
the intervening period.

      12.08 DUPLICATE ORIGINALS.

            The parties may sign any number of copies of this Indenture. Each
signed copy shall be an original, but all of them together represent the same
agreement. Delivery of an executed counterpart by facsimile shall be effective
as delivery of a manually executed counterpart thereof.

      12.09 GOVERNING LAW.

            The laws of the State of New York, without regard to principles of
conflicts of law, shall govern this Indenture and the Securities.

      12.10 SUBMISSION TO JURISDICTION

            The parties hereby submit to the non-exclusive jurisdiction of any
United States Federal or New York State court sitting in the Borough of
Manhattan in the City of New York solely for the purpose of any legal action or
proceeding brought to enforce their obligations hereunder or with respect to any
Security.

            As long as any of the Securities remain outstanding or the parties
hereto have any obligation under this Indenture, the Company shall have an
authorized agent upon whom process may be served in any such legal action or
proceeding. Service of process upon such agent and written notice of such
service mailed or delivered to the Company shall to the extent permitted by law
be deemed in every respect effective service of process upon the Company in any
such legal action or proceeding and, if it fails to maintain such an agent, any
such process or summons may be served by mailing a copy thereof by registered
mail, or a form of mail substantially equivalent thereto, addressed to it at its
address as provided for notices hereunder. The Company hereby appoints CT
Corporation System at 111 Eighth Avenue, New York, New York 10011, as its agent
for such purposes, and covenants and agrees that service of process in any legal
action or proceeding may be made upon it at such office of such agent.

            The Company irrevocably waives, to the fullest extent permitted by
law, any objection that it may now or hereafter have to the laying of venue of
any such action or proceeding in the Supreme Court of the State of New York,
County of New York or the United States District Court for the Southern District
of New York and any claim that any such action or proceeding brought in any such
court has been brought in an inconvenient forum.

                                       -82-
<PAGE>

            The Company irrevocably agrees that, should any such action or
proceeding be brought against it arising out of or in connection with this
Indenture, no immunity (to the extent that it may now or hereafter exist,
whether on the ground of sovereignty or otherwise) from such action or
proceeding, from attachment (whether in aid of execution, before judgment or
otherwise) of its property, assets or revenues, or from execution or judgment
wherever brought or made, shall be claimed by it or on its behalf or with
respect to its property, assets or revenues, any such immunity being hereby
irrevocably waived by the Company to the fullest extent permitted by law.

      12.12 JUDGMENT CURRENCY

            In respect of any judgment or order given or made for any amount due
hereunder that is expressed and paid in a currency (the "JUDGMENT CURRENCY")
other than United States dollars, the Company will indemnify the Trustee and the
Security Agents against any loss incurred by the Trustee, the Securities Agent
or any other agent as a result of any variation as between (a) the rate of
exchange at which the United States dollar amount is converted into the judgment
currency for the purpose of such judgment or order and (b) the rate of exchange
at which the Trustee, the Securities Agent or any agent is able to purchase
United States dollars with the amount of the judgment currency actually received
by the Trustee, the Securities Agent or any agent. The foregoing indemnity shall
constitute a separate and independent obligation of the Company and shall
continue in full force and effect notwithstanding any such judgment or order as
aforesaid. The term "rate of exchange" shall include any premiums and costs of
exchange payable in connection with the purchase of or conversion into United
States dollars.

      12.13 NO ADVERSE INTERPRETATION OF OTHER AGREEMENTS.

            This Indenture may not be used to interpret another indenture, loan
or debt agreement of the Company or any of its Subsidiaries. Any such indenture,
loan or debt agreement may not be used to interpret this Indenture.

      12.14 SUCCESSORS.

            All agreements of the Company in this Indenture and the Securities
shall bind its successors and assigns. All agreements of the Trustee in this
Indenture shall bind its successors and assigns.

      12.15 SEPARABILITY.

            In case any provision in this Indenture or in the Securities shall
be invalid, illegal or unenforceable, the validity, legality and enforceability
of the remaining provisions shall not in any way be affected or impaired thereby
and a Holder shall have no claim therefor against any party hereto.

      12.16 TABLE OF CONTENTS, HEADINGS, ETC.

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

                                       -83-
<PAGE>

      12.17 CALCULATIONS IN RESPECT OF THE SECURITIES.

            The Company shall make all calculations under this Indenture and the
Securities (including, without limitation, the Daily Principal Returns, the
Daily Conversion Values, the Daily Net Shares, the Conversion Price and any
adjustments to the Conversion Rate pursuant hereto) in good faith. In the
absence of manifest error, such calculations shall be final and binding on all
Holders. The Company shall provide a copy of such calculations to the Trustee
and the Securities Agent as requested or required hereunder, and each of the
Trustee and the Securities Agent shall be entitled to rely on the accuracy of
any such calculation without independent verification. Neither the Trustee or
the Securities Agent shall have any obligation to calculate or determine or
verify the calculation or determination of the Conversion Rate, the Conversion
Price, the Daily Principal Return, the Daily Conversion Values or the Daily Net
Shares. The Trustee and/or the Securities Agent shall forward the Company's
calculations to any Holder upon request of such Holder.

      12.18 NO PERSONAL LIABILITY OF DIRECTORS, OFFICERS, EMPLOYEES OR
            SHAREHOLDERS.

            None of the Company's past, present or future directors, officers,
employees or shareholders, as such, shall have any liability for any of the
Company's obligations under this Indenture or the Securities or for any claim
based on, or in respect or by reason of, such obligations or their creation. By
accepting a Security, each holder waives and releases all such liability. This
waiver and release is part of the consideration for the issue of the Securities.

  [THE REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK; SIGNATURE PAGE FOLLOWS]

<PAGE>

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

                                      SUNTECH POWER HOLDINGS CO., LTD.

                                      By: ______________________________________
                                          Name:
                                          Title:

                                   [Indenture]

<PAGE>

                                      WILMINGTON TRUST COMPANY

                                      By: ______________________________________
                                          Name:
                                          Title:

                                   [Indenture]

<PAGE>

                                                                       EXHIBIT A

                               [Face of Security]

                        SUNTECH POWER HOLDINGS CO., LTD.

Certificate No._______________

    [INSERT PRIVATE PLACEMENT LEGEND AND GLOBAL SECURITY LEGEND, AS REQUIRED]

                     0.25% Convertible Senior Note due 2012

                               CUSIP No. 86800CAA2

            Suntech Power Holdings Co., Ltd., a company with limited liability
under the laws of the Cayman Islands (the "COMPANY"), for value received, hereby
promises to pay to Cede & Co., or its registered assigns, the principal sum of
FIVE HUNDRED MILLION dollars ($500,000,000) on February 15, 2012 and to pay
interest thereon, as provided on the reverse hereof, until the principal and any
unpaid and accrued interest are paid or duly provided for.

            Interest Payment Dates: February 15 and August 15, with the first
payment to be made on August 15, 2007.

            Record Dates: February 1 and August 1.

            The provisions on the back of this certificate are incorporated as
if set forth on the face hereof.

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<PAGE>

            IN WITNESS WHEREOF, Suntech Power Holdings Co., Ltd. has caused this
instrument to be duly signed.

                                      SUNTECH POWER HOLDINGS CO., LTD.

                                      By: ______________________________________
                                          Name:
                                          Title:

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<PAGE>

CERTIFICATE OF AUTHENTICATION

This is one of the Securities referred to in the
within-mentioned indenture.

WILLINGTON TRUST COMPANY, as Trustee

By:____________________________________
            Authorized Signatory

Dated:__________________________

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<PAGE>

                              [REVERSE OF SECURITY]

                        SUNTECH POWER HOLDINGS CO., LTD.

                     0.25% CONVERTIBLE SENIOR NOTE DUE 2012

      1. INTEREST. Suntech Power Holdings Co., Ltd, a company with limited
liability under the laws of the Cayman Islands (the "COMPANY"), promises to pay
interest on the principal amount of this Security at the rate per annum shown
above. The Company will pay interest, payable semi-annually in arrears, on
February 15 and August 15 of each year, with the first payment to be made on
August 15, 2007. Interest on the Securities will accrue on the principal amount
from, and including, the most recent date to which interest has been paid or
provided for or, if no interest has been paid, from, and including, February 12,
2007, in each case to, but excluding, the next interest payment date or Maturity
Date, as the case may be Interest will be computed on the basis of a 360-day
year of twelve 30-day months.

      2. MATURITY. The Securities will mature on February 15, 2012.

      3. METHOD OF PAYMENT. Except as provided in the indenture (as defined
below), the Company will pay interest on the Securities to the persons who are
Holders of record of the Securities at the close of business on the record date
set forth on the face of this Security next preceding the applicable interest
payment date. Holders must surrender the Securities to a Paying Agent to collect
the principal amount, Redemption Price, Option Purchase Price or Fundamental
Change Repurchase Price of the Securities , plus, if applicable, accrued and
unpaid interest, if any, payable as herein provided upon Redemption, Purchase at
Holder's Option or Repurchase Upon Fundamental Change, as the case may be. The
Company will pay, in money of the United States that at the time of payment is
legal tender for payment of public and private debts, all amounts due in cash
with respect to the Securities, which amounts shall be paid (A) in the case this
Security is in global form, by wire transfer of immediately available funds to
the account designated by the Depositary or its nominee; (B) in the case this
Security is held, other than global form, by a Holder of more than five million
dollars ($5,000,000) in aggregate principal amount of the Securities, by wire
transfer of immediately available funds to the account specified by such Holder
or, if such Holder does not specify an account, by mailing a check to the
address of such Holder set forth in the register of the Registrar; and (C) in
the case this Security is held, other than global form, by a Holder of five
million dollars ($5,000,000) or less in aggregate principal amount of the
Securities, by mailing a check to the address of such Holder set forth in the
register of the Registrar.

      4. PAYING AGENT, REGISTRAR, CONVERSION AGENT. Initially, Wilmington Trust
Company, (the "SECURITIES AGENT") will act as Paying Agent, Registrar, Bid
Solicitation Agent and Conversion Agent. The Company may change any Paying
Agent, Registrar, Bid Solicitation Agent, Calculation Agent or Conversion Agent
without notice.

      5. INDENTURE. The Company issued the Securities under an Indenture dated
as of February 12, 2007 (the "INDENTURE") among the Company, Wilmington Trust
Company, as trustee (the "TRUSTEE"), and the Securities Agent. The terms of the
Securities include those stated in the Indenture and those made part of the
Indenture by reference to the Trust Indenture Act of 1939 (15 U.S. Code Sections
77aaa-77bbbb) (the "TIA") as amended and in effect from time to

                                     A-1-4
<PAGE>

time. The Securities are subject to all such terms, and Holders are referred to
the Indenture and the TIA for a statement of such terms. The Securities are
general unsecured senior obligations of the Company limited to $500,000,000
aggregate principal amount, except as otherwise provided in the Indenture
(except for the Securities issued in substitution for destroyed, mutilated, lost
or stolen the Securities). Terms used herein without definition and which are
defined in the Indenture have the meanings assigned to them in the Indenture.

      6. OPTIONAL REDEMPTION.

            The Company shall have the right, at the Company's option, at any
time, and from time to time, on a Redemption Date on or after February 15, 2010,
to redeem all or any part of the Securities at a price payable in cash equal to
one hundred percent (100%) of the principal amount of the Securities to be
redeemed, plus accrued and unpaid interest, if any, to, but excluding, the
Redemption Date. The Company will make at least eleven (11) semi-annual interest
payments with respect to the Securities prior to redeeming any Securities
pursuant to this paragraph.

      7. NOTICE OF REDEMPTION. Notice of Redemption will be mailed at least
thirty (30) days but not more than sixty (60) days before the Redemption Date to
each Holder of the Securities to be redeemed at its address appearing in the
security register. The Securities in denominations larger than $1,000 principal
amount may be redeemed in part but only in integral multiples of $1,000
principal amount.

      8. PURCHASE BY THE COMPANY AT THE OPTION OF THE HOLDER. Subject to the
terms and conditions of the Indenture, the Company shall become obligated to
purchase, at the option of each Holder, the Securities held by such Holder on
February 15, 2010 (the "OPTION PURCHASE DATE") at the Option Purchase Price,
payable in cash, equal to one hundred percent (100%) of the principal amount of
the Securities to be purchased, plus accrued and unpaid interest, if any, to,
but excluding, the Option Purchase Date, upon delivery of a Purchase Notice
containing the information set forth in the Indenture, at any time from the
opening of business on the date that is twenty (20) Business Days prior to the
Option Purchase Date until the close of business on the third (3rd) Business Day
immediately preceding the Option Purchase Date and upon delivery of the
Securities to the Paying Agent by the Holder as set forth in the Indenture;
provided, however, that such accrued and unpaid interest shall be paid to the
Holder of record of such Security at the close of business on the record date
immediately preceding the Option Purchase Date.

      9. REPURCHASE AT OPTION OF HOLDER UPON A FUNDAMENTAL CHANGE. Subject to
the terms and conditions of the Indenture, in the event of a Fundamental Change,
each Holder of the Securities shall have the right, at the Holder's option, to
require the Company to repurchase such Holder's Securities including any portion
thereof which is $1,000 in principal amount or any integral multiple thereof on
a date selected by the Company (the "FUNDAMENTAL CHANGE REPURCHASE DATE"), which
date is no later than thirty five (35) days, nor earlier than twenty (20) days,
after the date on which notice of such Fundamental Change is mailed in
accordance with the Indenture, at a price payable in cash equal to one hundred
percent (100%) of the principal amount of such Security, plus accrued and unpaid
interest to, but excluding, the Fundamental Change Repurchase Date; provided,
however, that if such Fundamental Change Repurchase Date is after a record date
for the payment of an installment of interest and on or before the related

                                     A-1-5
<PAGE>

interest payment date, then the accrued and unpaid interest, if any, to, but
excluding, such interest payment date will be paid on such interest payment date
to the Holder of record of such Securities at the close of business on such
record date, and the Holder surrendering such Securities for repurchase will not
be entitled to any such accrued and unpaid interest unless such Holder was also
the Holder of record of such Securities at the close of business on such record
date.

      10. CONVERSION.

            Conversion Based on Closing Sale Price of Common Stock. Subject to
earlier Redemption, Purchase at Holder's Option or Repurchase Upon Fundamental
Change, Holders may surrender Securities in integral multiples of $1,000
principal amount for conversion into, at the Company's election, cash, ADSs or a
combination thereof, on any Business Day of a calendar quarter after the
calendar quarter ending March 31, 2007, if the Closing Sale Price for each of
twenty (20) or more Trading Days in a period of thirty (30) consecutive Trading
Days ending on the last Trading Day of the immediately preceding calendar
quarter exceeds one hundred and twenty percent (120%) of the Conversion Price of
the Securities in effect on the last Trading Day of the immediately preceding
calendar quarter. Solely for purposes of determining whether the Securities
shall have become convertible pursuant to this paragraph, the Board of Directors
shall, in its good faith determination, which shall be described in a Board
Resolution, make appropriate adjustments to the Closing Sale Prices and/or such
Conversion Price used to determine whether the Securities shall have become
convertible pursuant to this paragraph to account for any adjustments to the
Conversion Rate which shall have become effective, or any event requiring an
adjustment to the Conversion Rate where the Ex Date of such event occurs, during
the period of thirty (30) consecutive Trading Days ending on the last Trading
Day of the immediately preceding calendar quarter.

            Conversion Upon Satisfaction of Trading Price Condition. Subject to
earlier Redemption, Purchase at Holder's Option or Repurchase Upon Fundamental
Change, Holders may surrender Securities in integral multiples of $1,000
principal amount for conversion into, at the Company's election, cash, ADSs or a
combination thereof, during the five (5) consecutive Business Days immediately
after any five (5) consecutive Trading Day period (such five (5) consecutive
Trading Day period, the "NOTE MEASUREMENT PERIOD") in which the average Trading
Price per $1,000 principal amount of the Securities was equal to or less than
ninety-seven percent (97%) of the average Conversion Value (as defined below)
during the Note Measurement Period (such condition, the "TRADING PRICE
CONDITION"). The Bid Solicitation Agent shall not have any obligation to
determine the Trading Price unless the Company has requested such determination
in writing, and the Company shall have no obligation to make such request unless
a Holder provides the Company with reasonable evidence that the Trading Price
per $1,000 principal amount of the Securities would be equal to or less than
ninety-seven percent (97%) of the product of the Closing Sale Price and the
Conversion Rate. Upon receipt of such evidence, the Company shall instruct the
Bid Solicitation Agent in writing to determine the Trading Price per $1,000
principal amount of the Securities for each of the five (5) successive Trading
Days immediately after the Company receives such evidence and on each Trading
Day thereafter until the first Trading Day on which the Trading Price Condition
is no longer satisfied. For purposes of this paragraph, the "CONVERSION VALUE"
per $1,000 principal amount of

                                     A-1-6
<PAGE>

Securities, on a given Trading Day, means the product of the Closing Sale Price
on such Trading Day and the Conversion Rate in effect on such Trading Day.

            Conversion Based on Redemption. A Security, or portion of a
Security, which has been called for Redemption pursuant to PARAGRAPH 6 may be
surrendered in integral multiples of $1,000 principal amount for conversion
into, at the Company's election, cash, ADSs or a combination thereof; provided,
however, that such Security or portion thereof may be surrendered for conversion
pursuant to this paragraph only until the close of business on the third (3rd)
Business Day immediately preceding the Redemption Date.

            Conversion Upon Certain Distributions. Subject to earlier
Redemption, Purchase at Holder's Option or Repurchase Upon Fundamental Change,
if the Company takes any action, or becomes aware of any event, that would
require an adjustment to the Conversion Rate pursuant to SECTIONS 10.05(h),
10.05(c), 10.05(d) or 10.05(e) of the Indenture, the Securities may be
surrendered for conversion in integral multiples of $1,000 principal amount
into, at the Company's election, cash, ADSs or a combination thereof beginning
on the date the Company mails the notice to the Holders as provided in SECTION
10.10 of the Indenture (or, if earlier, the date the Company is required to mail
such notice) and at any time thereafter until the close of business on the
Business Day immediately preceding the Ex Date (as defined in SECTION 10.05(g)
of the Indenture) of the applicable transaction or until the Company announces
that such transaction will not take place.

            Conversion Upon Occurrence of Certain Corporate Transactions.
Subject to earlier Redemption, Purchase at Holder's Option or Repurchase Upon
Fundamental Change, if either:

      (i) a Fundamental Change occurs; or

      (ii) the Company is a party to a consolidation, merger, binding share
exchange, reconstruction, amalgamation or other similar arrangement pursuant to
which the Ordinary Shares (including Ordinary Shares represented by the ADSs)
would be converted into or exchanged for, or would constitute solely the right
to receive, cash, securities or other property,

then, in each case, the Securities may be surrendered for conversion into cash
and, if applicable, shares of Common Stock at any time during the period that
begins on, and includes, the date that is thirty (30) scheduled trading days
prior to the date originally announced by the Company as the anticipated
effective date of such Fundamental Change, consolidation, merger, binding share
exchange, reconstruction, amalgamation or other similar arrangement (which
anticipated effective date the Company shall disclose, in good faith, in the
written notice, public announcement and publication referred to in SECTION
10.01(C) of the Indenture) and ends on, and includes, the date that is thirty
(30) business days after the actual effective date of such Fundamental Change,
consolidation, merger, binding share exchange, reconstruction, amalgamation or
other similar arrangement; provided, however, that if such Fundamental Change,
consolidation, merger, binding share exchange, reconstruction, amalgamation or
other similar arrangement shall also constitute a Make-Whole Fundamental Change,
then the Securities may also be surrendered for conversion into, at the
Company's election, cash, ADSs

                                     A-1-7
<PAGE>

or a combination thereof at any time during the Make-Whole Conversion Period
applicable to such Make-Whole Fundamental Change.

            Conversion During Specific Periods. Subject to earlier Redemption,
Purchase at Holder's Option or Repurchase Upon Fundamental Change, the
Securities may be surrendered for conversion into, at the Company's election,
cash, ADSs or a combination thereof at any time during the periods (i) from, and
including, January 15, 2010 to, and including, the third business day proceeding
February 15, 2010, and (ii) from (and including) November 15, 2011 to, and
including, the third business day preceding the maturity date.

            To convert a Security, a Holder must (1) complete and sign the
Conversion Notice, with appropriate signature guarantee, on the back of the
Security, (2) surrender the Security to a Conversion Agent, (3) furnish
appropriate endorsements and transfer documents if required by the Registrar or
Conversion Agent, (4) pay the amount of interest, if any, the Holder must pay in
accordance with the Indenture and (5) pay any tax or duty if required pursuant
to the Indenture. A Holder may convert a portion of a Security if the portion is
$1,000 principal amount or an integral multiple of $1,000 principal amount.

            Upon conversion of a Security, the Holder thereof shall be entitled
to receive, at the Company's election, the cash, ADSs or a combination thereof
payable upon conversion in accordance with ARTICLE X of the Indenture.

            The initial Conversion Rate is 20.5074 ADSs per $1,000 principal
amount of Securities (which results in an effective initial Conversion Price of
approximately $48.76 per ADS) subject to adjustment in the event of certain
circumstances as specified in the Indenture. The Company will deliver cash in
lieu of any fractional share. On conversion, no payment or adjustment for any
unpaid and accrued interest or additional interest on the Securities will be
made. If a Holder surrenders a Security for conversion after the close of
business on the record date for the payment of an installment of interest and
prior to the related interest payment date, such Security, when surrendered for
conversion, must be accompanied by payment of an amount equal to the interest
thereon which the registered Holder at the close of business on such record date
is to receive (other than overdue interest, if any, that has accrued on such
Security), unless such Security has been called for Redemption as described in
the Indenture.

            The Conversion Rate applicable to each Security that is surrendered
for conversion, in accordance with the Securities and ARTICLE X of the
Indenture, at any time during the Make-Whole Conversion Period with respect to a
Make-Whole Fundamental Change shall be increased to an amount equal to the
Conversion Rate that would, but for SECTION 10.14 of the Indenture, otherwise
apply to such Security pursuant to ARTICLE X of the Indenture, plus an amount
equal to the Make-Whole Applicable Increase; provided, however, that such
increase to the Conversion Rate shall not apply if such Make-Whole Fundamental
Change is announced by the Company but shall not be consummated.

      11. DENOMINATIONS, TRANSFER, EXCHANGE. The Securities are in registered
form, without coupons, in denominations of $1,000 principal amount and integral
multiples of $1,000 principal amount. The transfer of the Securities may be
registered and the Securities may be exchanged as provided in the Indenture. The
Securities Agent may require a Holder, among

                                     A-1-8
<PAGE>

other things, to furnish appropriate endorsements and transfer documents. No
service charge shall be made for any such registration of transfer or exchange,
but the Company and the Securities Agent may require payment of a sum sufficient
to cover any tax or similar governmental charge that may be imposed in
connection with certain transfers or exchanges. The Company or the Securities
Agent, as the case may be, shall not be required to register the transfer of or
exchange any Security (i) during a period beginning at the opening of business
twenty (20) days before the mailing of a notice of redemption of the Securities
selected for Redemption under SECTION 3.04 of the Indenture and ending at the
close of business on the day of such mailing or (ii) for a period of twenty (20)
days before selecting, pursuant to SECTION 3.03 of the Indenture, the Securities
to be redeemed or (iii) that has been selected for Redemption or for which a
Purchase Notice has been delivered, and not withdrawn, in accordance with the
Indenture, except the unredeemed or unrepurchased portion of the Securities
being redeemed or repurchased in part.

      12. PERSONS DEEMED OWNERS. The registered Holder of a Security may be
treated as the owner of such Security for all purposes.

      13. MERGER OR CONSOLIDATION. Except as provided in the indenture, the
Company shall not consolidate or amalgamate with, or merge with or into, or
reconstruct or enter into similar arrangements with, or sell, transfer, lease,
convey or otherwise dispose of all or substantially all of the property or
assets of the Company to, another person, whether in a single transaction or
series of related transactions, unless (i) such other person is a corporation
organized and existing under the laws of the Cayman Islands, the British Virgin
Islands, Bermuda, Hong Kong, United States, any State thereof or the District of
Columbia; (ii) such person assumes by supplemental indenture all the obligations
of the Company under the Securities and the Indenture; and (iii) immediately
after giving effect to the transaction, no Default or Event of Default shall
exist.

      14. AMENDMENTS, SUPPLEMENTS AND WAIVERS. Subject to certain exceptions,
the Indenture or the Securities may be amended or supplemented with the consent
of the Holders of at least a majority in aggregate principal amount of the
outstanding Securities, and certain existing Defaults or Events of Default may
be waived with the consent of the Holders of a majority in aggregate principal
amount of the Securities then outstanding. In accordance with the terms of the
Indenture, the Company may amend or supplement this Indenture or the Securities
without notice to or the consent of any Securityholder: (i) to comply with
SECTIONS 5.01 and 10.11 of the Indenture; (ii) to make any changes or
modifications to the Indenture necessary in connection with the registration of
the Securities under the Securities Act pursuant to the Registration Rights
Agreement or the qualification of the Indenture under the TIA; (iii) to evidence
and provide the acceptance to the appointment of a successor Trustee under the
Indenture; (iv) to secure the obligations of the Company in respect of the
Securities; (v) to add to the covenants of the Company described in the
Indenture for the benefit of Securityholders or to surrender any right or power
conferred upon the Company; (vi) to make provisions with respect to adjustments
to the Conversion Rate as required by the Indenture or to increase the
Conversion Rate in accordance with the Indenture; and (vii) to make any changes
of a formal minor or technical nature or necessary to correct a manifest error
or comply with mandatory provisions of applicable law as evidence by an Opinion
of Counsel as long as such change does not adversely affect the rights of the
Holders of the Securities in any material respect. In addition, the

                                     A-1-9
<PAGE>

Company, the Trustee and the Securities Agent may enter into a supplemental
indenture without the consent of Holders of the Securities to cure any
ambiguity, defect, omission or inconsistency in the Indenture in a manner that
does not, individually or in the aggregate with all other modifications made or
to be made to the Indenture, adversely affect the rights of any Holder in any
material respect.

      15. DEFAULTS AND REMEDIES.

            If an Event of Default (excluding an Event of Default specified in
SECTION 6.01(viii) or (ix) of the Indenture with respect to the Company (but
including an Event of Default specified in SECTION 6.01(viii) or (ix) of the
Indenture solely with respect to a Significant Subsidiary of the Company or any
group of Subsidiaries that in the aggregate would constitute a Significant
Subsidiary of the Company)) occurs and is continuing, the Trustee by notice to
the Company or the Holders of at least twenty five percent (25%) in principal
amount of the Securities then outstanding by notice to the Company and the
Trustee may declare the Securities to be due and payable. Upon such declaration,
the principal of, and any premium and accrued and unpaid interest (including any
additional interest) on, all Securities shall be due and payable immediately. If
an Event of Default specified in SECTION 6.01(viii) or (ix) of the Indenture
with respect to the Company (excluding, for purposes of this sentence, an Event
of Default specified in SECTION 6.01(viii) or (ix) of the Indenture solely with
respect to a Significant Subsidiary of the Company or any group of Subsidiaries
that in the aggregate would constitute a Significant Subsidiary of the Company)
occurs, the principal of, and premium and accrued and unpaid interest (including
any additional interest) on, all the Securities shall ipso facto become and be
immediately due and payable without any declaration or other act on the part of
the Trustee or any Holder. The Holders of a majority in aggregate principal
amount of the Securities then outstanding by written notice to the Trustee may
rescind or annul an acceleration and its consequences if (A) the rescission
would not conflict with any order or decree, (B) all existing Events of Default,
except the nonpayment of principal, premium or interest (including additional
interest) that has become due solely because of the acceleration, have been
cured or waived and (C) all amounts due to the Trustee and the Securities Agent
under SECTION 7.07 of the Indenture have been paid.

            Holders may not enforce the Indenture or the Securities except as
provided in the Indenture. The Holders of a majority in aggregate principal
amount of the Securities then outstanding may direct the time, method and place
of conducting any proceeding for any remedy available to the Trustee or
exercising any trust or power conferred on it. However, the Trustee may refuse
to follow any direction that conflicts with law or the Indenture, is unduly
prejudicial to the rights of other Holders or would involve the Trustee in
personal liability unless the Trustee is offered indemnity satisfactory to it;
provided, that the Trustee may take any other action deemed proper by the
Trustee which is not inconsistent with such direction.

            If a Default or Event of Default occurs and is continuing as to
which the Trustee has received written notice pursuant to the provisions of the
Indenture, or as to which a Responsible Officer of the Trustee shall have actual
knowledge, the Trustee shall mail to each Holder a notice of the Default or
Event of Default within thirty (30) days after it occurs unless such Default or
Event of Default has been cured or waived. Except in the case of a Default or
Event of Default in payment of any amounts due with respect to any Security, the
Trustee may

                                     A-1-10
<PAGE>

withhold the notice if, and so long as it in good faith determines that,
withholding the notice is in the best interests of Holders. The Company must
deliver to the Trustee and the Securities Agent an annual compliance
certificate.

            The Company will pay interest on any overdue installments of
interest at the rate per annum of 2.0%.

      16. REGISTRATION RIGHTS. The Holders are entitled to registration rights
as set forth in the Registration Rights Agreement. The Holders shall be entitled
to receive additional interest in certain circumstances, all as set forth in the
Registration Rights Agreement.

      17. TRUSTEE'S AND SECURITIES AGENT'S DEALINGS WITH THE COMPANY. Each of
the Trustee and the Securities Agent, and each banking institution, if any,
serving as successor Trustee or Securities Agent thereunder, in its individual
or any other capacity, may make loans to, accept deposits from, and perform
services for, the Company or its Affiliates, and may otherwise deal with the
Company or its Affiliates, as if it were not Trustee or Securities Agent, as
applicable, and to the extent permitted by the TIA.

      18. NO RECOURSE AGAINST OTHERS. No past, present or future director,
officer, employee or shareholder, as such, of the Company shall have any
liability for any obligations of the Company under the Securities or the
Indenture or for any claim based on, in respect of, or by reason of, such
obligations or their creation. Each Holder, by accepting a Security, waives and
releases all such liability. The waiver and release are part of the
consideration for the issue of the Security.

      19. AUTHENTICATION. This Security shall not be valid until authenticated
by the manual signature of the Trustee or an authenticating agent in accordance
with the Indenture.

      20. ABBREVIATIONS. Customary abbreviations may be used in the name of a
Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (=
tenants by the entirety), JT TEN (= joint tenants with right of survivorship and
not as tenants in common), CUST (= Custodian), and U/G/M/A (Uniform Gifts to
Minors Act).

      THE COMPANY WILL FURNISH TO ANY HOLDER UPON WRITTEN REQUEST AND WITHOUT
CHARGE A COPY OF THE INDENTURE. REQUESTS MAY BE MADE TO:

                        SUNTECH POWER HOLDINGS CO., LTD.
                           17-6 Changjiang South Road
                               New District, Wuxi
                             Jiangsu Province 214028
                           People's Republic of China

                                     A-1-11
<PAGE>

                              [FORM OF ASSIGNMENT]

I or we assign to

PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER

_____________________________________

________________________________________________________________________________
(please print or type name and address)

________________________________________________________________________________

________________________________________________________________________________

the within Security and all rights thereunder, and hereby irrevocably constitute
and appoint

________________________________________________________________________________

Attorney to transfer the Security on the books of the Company with full power
of substitution in the premises

Dated:________________________________     _____________________________________
                                           NOTICE: The signature on this
                                           assignment must correspond with the
                                           name as it appears upon the face of
                                           the within Security in every
                                           particular without alteration or
                                           enlargement or any change whatsoever
                                           and be guaranteed by a guarantor
                                           institution participating in the
                                           Securities Transfer Agents Medallion
                                           Program or in such other guarantee
                                           program acceptable to the Registrar.

Signature Guarantee: ___________________________________________________________

                                     A-1-12
<PAGE>

In connection with any transfer of this Security occurring prior to the date
which is the earlier of (i) the date of the declaration by the SEC of the
effectiveness of a registration statement under the Securities Act of 1933, as
amended, covering resales of this Security (which effectiveness shall not have
been suspended or terminated at the date of the transfer) and (ii) the Resale
Restriction Termination Date, the undersigned confirms that it is making, and it
has not utilized any general solicitation or general advertising in connection
with, the transfer:

                                   [Check One]

(1)      ____    to the Company or any Subsidiary thereof, or

(2)      ____    pursuant to, and in compliance with, the exemption from
                 registration provided by Rule 144A under
                 the Securities Act of 1933, as amended, or

(3)      ____    pursuant to, and in compliance with, the exemption from
                 registration provided by Rule 144 under the
                 Securities Act of 1933, as amended, or

(4)      ____   pursuant to, and in compliance with, an exemption from
                registration under the Securities Act of  1933, as amended,
                other than Rule 144A or Rule 144, or

(5)      ____   pursuant to an effective registration statement under the
                Securities Act of 1933, as amended,

and, unless the box below is checked, the undersigned confirms that this
Security is not being transferred to an "affiliate" of the Company (an
"Affiliate") as defined in Rule 144 under the Securities Act of 1933, as
amended:

            The transferee is an Affiliate of the Company. (If the Security is
transferred to an Affiliate, the restrictive legend must remain on the Security
for at least two (2) years following the date of the transfer.)

Unless one of the items (1) through (5) is checked, the Registrar will refuse to
register any of the Securities evidenced by this certificate in the name of any
person other than the registered Holder thereof; provided, however, that if item
(3) or (4) is checked, the Company or the Registrar may require, prior to
registering any such transfer of the Securities, in their sole discretion, such
written legal opinions, certifications and other information as the Registrar or
the Company have reasonably requested to confirm that such transfer is being
made pursuant to an exemption from, or in a transaction not subject to, the
registration requirements of the Securities Act of 1933, as amended. If item (2)
is checked, the purchaser must complete the certification below.

If none of the foregoing items are checked, the Registrar shall not be obligated
to register this Security in the name of any person other than the Holder hereof
unless and until the conditions to any such transfer of registration set forth
herein and in the Indenture shall have been satisfied.

Dated:___________________________        Signed:________________________________
                                         (Sign exactly as name appears on the
                                         other side of this Security)

Signature Guarantee:____________________________________________________________

                                     A-1-13
<PAGE>

TO BE COMPLETED BY PURCHASER IF (2) ABOVE IS CHECKED

The undersigned represents and warrants that it is purchasing this Security for
its own account or an account with respect to which it exercises sole investment
discretion and that it and any such account is a "qualified institutional buyer"
within the meaning of Rule 144A under the Securities Act of 1933, as amended,
and is aware that the sale to it is being made in reliance on Rule 144A and
acknowledges that it has received such information regarding the Company as the
undersigned has requested pursuant to Rule 144A and acknowledges that the
transferor is relying upon the undersigned's foregoing representations in order
to claim the exemption from registration provided by Rule 144A.

Dated:______________________________     _______________________________________
                                         NOTICE: To be executed by an executive
                                         officer

                                     A-1-14

<PAGE>

                                CONVERSION NOTICE

To convert this Security in accordance with the Indenture, check the box: |_|

To convert only part of this Security, state the principal amount to be
converted (must be in multiples of $1,000):

                               $_________________

If you want the certificate representing the ADSs, if any, issuable upon
conversion made out in another person's name, fill in the form below:

________________________________________________________________________________
(Insert other person's soc. sec. or tax I.D. no.)

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
(Print or type other person's name, address and zip code)

________________________________________________________________________________

Date:_______________________     Signature(s):__________________________________

                                 _______________________________________________
                                 (Sign exactly as your name(s) appear(s) on the
                                 other side of this Security)

Signature(s) guaranteed by:
                                 _______________________________________________
                                 (All signatures must be guaranteed
                                 by a guarantor institution
                                 participating in the Securities
                                 Transfer Agents Medallion Program
                                 or in such other guarantee program
                                 acceptable to the Securities
                                 Agent.)

                                     A-1-15
<PAGE>

                                 PURCHASE NOTICE

Certificate No. of Security: _______________

      If you want to elect to have this Security purchased by the Company
pursuant to SECTION 3.09 of the Indenture, check the box: [ ]

      If you want to elect to have this Security purchased by the Company
pursuant to SECTION 3.10 of the Indenture, check the box: [ ]

      If you want to elect to have only part of this Security purchased by the
Company pursuant to SECTIONS 3.09 or 3.10 of the Indenture, as applicable, state
the principal amount to be so purchased by the Company:

                       $____________________________________
                         (in an integral multiple of $1,000)

Date:_____________________         Signature(s):________________________________

                                   (Sign exactly as your name(s) appear(s) on
                                   the other side of this Security)

Signature(s) guaranteed by:
                                   _____________________________________________
                                   (All signatures must be guaranteed by a
                                   guarantor institution participating in the
                                   Securities Transfer Agents Medallion Program
                                   or in such other guarantee program acceptable
                                   to the Securities Agent.)

                                     A-1-16

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