Document:

Amendment Number 1 to Solar Wafer Supply Agreement

 Exhibit 10.53 
 EXECUTION VERSION 
 CONFIDENTIAL TREATMENT REQUESTED 
 REDACTED VERSION 
 AMENDMENT NUMBER
1 TO 
 SOLAR WAFER SUPPLY AGREEMENT 
 This Amendment Number 1 to Solar Wafer Supply Agreement (this “Amendment”) is entered into as of February 5, 2009, by and between MEMC SINGAPORE PTE. LTD., a Singapore corporation
(“MEMC Singapore”) and wholly-owned subsidiary of MEMC ELECTRONIC MATERIALS, INC., a Delaware corporation with its principal place of business at 501 Pearl Drive (City of O’Fallon), St. Peters, Missouri 63376, United States of
America, or such other designated majority-owned subsidiary of MEMC ELECTRONIC MATERIALS, INC. (“MEMC”), and SUNTECH POWER HOLDINGS CO., LTD., a Cayman Islands company with its principal place of business at 17-6 Changjiang
South Road, New District, Wuxi, Jiangsu Province 214028, People’s Republic of China (“Suntech”) or its designated majority-owned subsidiary. MEMC Singapore and Suntech together shall be referred to as the
“Parties” and individually as a “Party”. 
 RECITALS: 
 WHEREAS, on July 25, 2006, the Parties entered into that certain Solar Wafer Supply Agreement (the “Agreement”), pursuant to which
MEMC agreed to supply and Suntech agreed to purchase certain quantities of solar wafers, pursuant to the terms of the Agreement; and 
 WHEREAS, on January 1, 2007, pursuant to Section 7.6 of the Agreement, MEMC assigned the Agreement to its wholly-owned subsidiary, MEMC Singapore; and 
 WHEREAS, the Parties hereto wish to amend the Agreement, as provided herein by this Amendment: 
 NOW,
THEREFORE, in consideration of the foregoing and the mutual representations, warranties, covenants and agreements herein contained, MEMC and Suntech agree as follows: 
 ARTICLE I 
 AMENDMENT TO SELECTED SECTIONS OF THE AGREEMENT 
 1.1 Defined Terms. Capitalized terms used herein and not otherwise defined herein shall have the meanings set forth in the Agreement. 

1.2 Revision of Attachment B to the Agreement. The Parties have agreed to amend and revise the price and minimum volumes for Contract Year
three (calendar year 2009) only by amending only the Multi Wafer Price and Yearly Minimum Quantity rows for Contract Year three (calendar year 2009) on Attachment B to the Agreement as is set forth on Attachment B-1 to this
Amendment. 
 1.3 Linearity of Suntech’s 2009 Demand. Pursuant to Section 2.2(e) of the Agreement, Suntech is required to
provide twelve month rolling forecasts to MEMC, and pursuant to Section 2.3 of the Agreement, Suntech is required to maintain at all times binding purchase orders with MEMC for at least the next ninety (90) days. As of February 2,
2009, 

  

 1 

 EXECUTION VERSION 
 CONFIDENTIAL TREATMENT REQUESTED 
 REDACTED VERSION 
  

 
Suntech had not met either of these obligations. As a result, and in connection with this Amendment, the Parties have agreed to a quarterly minimum demand
for Suntech as is set forth on Attachment B-1 to this Amendment. Complete compliance by Suntech with the 2009 quarterly minimum demand provisions of this Section 1.3 and the provisions and minimum quantities set forth on Attachment
B-1 of this Amendment (which includes ordering and acceptance of the minimum amounts of wafers set forth on Attachment B-1) shall satisfy the 2009 obligations of Suntech pursuant to Section 2.2(e) and Section 2.3 of the
Agreement. 
 ARTICLE II 
 MISCELLANEOUS 
 2.1 No Other Changes. Other than with respect to the Sections of the Agreement and Attachments to the
Agreement specifically enumerated above, this Amendment does not modify, change or delete any other addendum, term, provision, representation, warranty or covenant (the “Provisions”) relating to or contained in the Agreement or any
Attachment, and all such Provisions of the Agreement shall remain in full force and effect. 
 2.2 Amendment. This Amendment may be
amended, modified or supplemented only in writing signed by MEMC and Suntech. 
 2.3 Applicable Law. This Amendment shall be governed
by and construed and enforced in accordance with the internal Laws of the State of New York, without giving effect to the principles of conflicts of law thereof. 
 2.4 Counterparts; Facsimile Signatures. This Amendment may be executed in counterparts, and when so executed each counterpart shall be deemed to be an original, and said counterparts together shall constitute
one and the same instrument. This Amendment may be executed and delivered by facsimile and upon such delivery the facsimile signature shall be deemed to have the same effect as if the original signature had been delivered to the other Part(ies). The
original signature copy shall be delivered to the other Part(ies) by express overnight delivery. The failure to deliver the original signature copy and/or the nonreceipt of the original signature copy shall have no effect upon the binding and
enforceable nature of this Amendment. 
 [remainder of page intentionally left blank; signature page follows] 
  

 2 

 EXECUTION VERSION 
 CONFIDENTIAL TREATMENT REQUESTED 
 REDACTED VERSION 
  

 IN WITNESS WHEREOF, the Parties hereto have caused this Amendment to be executed and delivered as of
the date first above written. 
  

									
	MEMC SINGAPORE PTE. LTD.	 		 	SUNTECH POWER HOLDINGS CO., LTD.
					
	By:	 	 /s/ Kenneth H. Hannah
	 		 	By:	 	 /s/ Dr. Zhengrong Shi

		 	Kenneth H. Hannah	 		 		 	Dr. Zhengrong Shi
		 	Director and Chief Financial Controller	 		 		 	Chief Executive Officer

 SIGNATURE PAGE TO 
 AMENDMENT NUMBER 1 TO SOLAR WAFER SUPPLY AGREEMENT 

 EXECUTION VERSION 
 CONFIDENTIAL TREATMENT REQUESTED 
 REDACTED VERSION 
  

 Attachment B-1 
  

					
	Contract Year	  	Year 3	  	
		  	(2009)	  	
			
	 Revised Yearly
 Minimum Quantity
 (MW)*
	  	[*****]	  	
			
	Multi Price ($/Watt)	  	[*****]	  	

  

	*	MW means megawatts. 

 Linear Demand
Schedule. For Contract Year 3, Suntech agrees to place purchase orders, and take delivery of wafers, in the following minimum amounts per calendar quarter: 
 [*****] 
  

 B-1Amendment Number 3 to Solar Wafer Supply Agreement

 Exhibit 10.54 
 EXECUTION VERSION 
 CONFIDENTIAL TREATMENT REQUESTED 
 REDACTED VERSION 
 AMENDMENT NUMBER
3 TO 
 SOLAR WAFER SUPPLY AGREEMENT 
 This Amendment Number 3 to Solar Wafer Supply Agreement (this “Third Amendment”) is entered into as of February 16, 2009 by and between MEMC SINGAPORE PTE. LTD., a Singapore corporation
(“MEMC Singapore”) and wholly-owned subsidiary of MEMC ELECTRONIC MATERIALS, INC., a Delaware corporation with its principal place of business at 501 Pearl Drive (City of O’Fallon), St. Peters, Missouri 63376, United States of
America, or such other designated majority-owned subsidiary of MEMC ELECTRONIC MATERIALS, INC. (“MEMC”), and GINTECH ENERGY CORPORATION, a Taiwan corporation with its principal place of business at 8F, no. 396, Sec. 1 Neihu
Rd. Neihu Technology Park, Taipei 114, Taiwan (“Gintech”), or its designated majority-owned subsidiary. MEMC Singapore and Gintech together shall be referred to as the “Parties” and individually as a
“Party”. 
 RECITALS: 
 WHEREAS, on October 25, 2006, MEMC and Gintech entered into that certain Solar Wafer Supply Agreement (the “Agreement”), pursuant to which MEMC agreed to supply and Gintech agreed to purchase
certain quantities of solar wafers, pursuant to the terms of the Agreement; and 
 WHEREAS, on January 1, 2007, pursuant to
Section 7.6 of the Agreement, MEMC assigned the Agreement to its wholly-owned subsidiary, MEMC Singapore; and 
 WHEREAS, on
October 25, 2007, MEMC and Gintech entered into that certain Amendment Number 1 to Solar Wafer Supply Agreement (the “First Amendment”), pursuant to which MEMC agreed to supply and Gintech agreed to purchase certain additional
quantities of solar wafers, pursuant to the terms of the First Amendment; and 
 WHEREAS, on November 30, 2008, MEMC and Gintech entered
into that certain Amendment Number 2 to Solar Wafer Supply Agreement (the “Second Amendment”), pursuant to which MEMC agreed to certain non-price and volume changes to the Agreement; and 
 WHEREAS, the Parties hereto wish to amend the Agreement, as amended by the First Amendment and the Second Amendment, as provided herein by this Third
Amendment: 
 NOW, THEREFORE, in consideration of the foregoing and the mutual representations, warranties, covenants and agreements herein
contained, MEMC Singapore and Gintech agree as follows: 
 ARTICLE I 
 AMENDMENT TO SELECTED SECTIONS OF THE AGREEMENT 
 1.1 Defined Terms. Capitalized
terms used herein and not otherwise defined herein shall have the meanings set forth in the Agreement. 
  

 1 

 EXECUTION VERSION 
 CONFIDENTIAL TREATMENT REQUESTED 
 REDACTED VERSION 
  

 1.2 Revision of Attachment B to the Agreement and Attachment B-1 to the First Amendment. The
Parties have agreed to amend and revise the price and minimum volumes for Contract Year three (calendar year 2009) only by amending only the Multi Wafer Price and Yearly Minimum Quantity rows for Contract Year three (calendar year 2009) on
Attachment B to the Agreement and Attachment B-1 to the First Amendment as is set forth on Attachment B-3 to this Third Amendment. 
 1.3 Amendment to Obligation to provide Letter of Credit. Pursuant to Section 3.1(c) of the Agreement, Attachment B to the Agreement and Attachment B-1 to the First Amendment, Gintech has the obligation to provide
MEMC Singapore with a total Letter of Credit Amount by the dates set forth in the Agreement for Contract Year three (calendar year 2009). As of January 13, 2009, Gintech had not met this obligation in full. As a result, and in connection with
this Third Amendment, the Parties have agreed to revise the obligation of Gintech to provide the full Letter of Credit Amount as is set forth on Attachment B-3 to this Third Amendment. 
 1.4 Linearity of Gintech’s 2009 Demand. Pursuant to Section 2.2(e) of the Agreement, Gintech is required to provide twelve month rolling
forecasts to MEMC, and pursuant to Section 2.3 of the Agreement, Gintech is required to maintain at all times binding purchase orders with MEMC for at least the next ninety (90) days. As of January 13, 2009, Gintech had not met either
of these obligations. As a result, and in connection with this Third Amendment, the Parties have agreed to a quarterly minimum demand for Gintech as is set forth on Attachment B-3 to this Third Amendment. 
 ARTICLE II 
 MISCELLANEOUS 
 2.1 No Other Changes. Other than with respect to the Sections of the Agreement specifically enumerated above, this Third Amendment does not
modify, change or delete any other addendum, term, provision, representation, warranty or covenant (the “Provisions”) relating to or contained in the Agreement or any Attachment, and all such Provisions of the Agreement shall remain
in full force and effect. 
 2.2 Amendment. This Third Amendment may be amended, modified or supplemented only in writing signed by
MEMC Singapore and Gintech. 
 2.3 Applicable Law. This Third Amendment shall be governed by and construed and enforced in accordance
with the internal Laws of the State of New York, without giving effect to the principles of conflicts of law thereof. 
 2.4 Counterparts;
Facsimile Signatures. This Third Amendment may be executed in counterparts, and when so executed each counterpart shall be deemed to be an original, and said counterparts together shall constitute one and the same instrument. This Third
Amendment may be executed and delivered by facsimile and upon such delivery the facsimile signature shall be deemed to have the same effect as if the original signature had been delivered to the other Part(ies). The original signature copy shall be
delivered to the other Part(ies) by express overnight delivery. The failure to deliver the original signature copy and/or the nonreceipt of the original signature copy shall have no effect upon the binding and enforceable nature of this Third
Amendment. 
  

 2 

 EXECUTION VERSION 
 CONFIDENTIAL TREATMENT REQUESTED 
 REDACTED VERSION 
  

 [remainder of page intentionally left blank; signature page follows] 
  

 3 

 EXECUTION VERSION 
 CONFIDENTIAL TREATMENT REQUESTED 
 REDACTED VERSION 
  

 IN WITNESS WHEREOF, the Parties hereto have caused this Third Amendment to be executed and delivered
as of the date first above written. 
  

									
	MEMC SINGAPORE PTE. LTD.	 		 	GINTECH ENERGY CORPORATION
					
	By:	 	 /s/ Kenneth H. Hannah
	 		 	By:	 	 /s/ Ellick Liao

		 	Kenneth H. Hannah	 		 		 	Ellick Liao
		 	Director and Chief Financial Controller	 		 		 	President

 SIGNATURE PAGE TO 
 AMENDMENT NUMBER 3 TO SOLAR WAFER SUPPLY AGREEMENT 

 EXECUTION VERSION 
 CONFIDENTIAL TREATMENT REQUESTED 
 REDACTED VERSION 
  

 Addendum B-3 
  

					
	Contract Year	  	Year 3	  	
		  	(2009)	  	
			
	 Revised Yearly
 Minimum Quantity
 (MW)*
	  	[*****]	  	
			
	Multi Price ($/Watt)	  	[*****]	  	

  

	*	MW means megawatts. 

 Letter of Credit.

 [*****] 
 Linear Demand
Schedule. For Contract Year 3, Gintech agrees to place purchase orders, and take delivery of wafers, in the following minimum amounts per calendar quarter: 
 [*****] 
  

 B-1

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