Document:

ex4-15.htm

    
      
        	*
      Confidential treatment has been requested for certain portions omitted
      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act
      of 1934, as amended. Confidential portions of this Exhibit have been
      separately filed with the Securities and Exchange
      Commission.

      

      
        
          

        

      

    

    
      English
translation for reference purpose only

      Exhibit
4.15

      

      Supplemental
Agreement I to Silicon Wafer Supply Agreement

      

      
        	
                Buyer:
      JingAo Solar Co., Ltd

                Address:
      JingLong Industrial Park, JingLong Street, NingJin, Hebei,
      China

                Legal
      Representative: Baofang Jin

              	
                Seller:
      Jiangsu Zhongneng Silicon Technology Development Co., Ltd.

                Address:
      66 Yangshan Road, the Economic Development Zone, Xuzhou,
China

                Legal
      Representative: Guomin Zhu

              

      

      

        
The parties entered into a Silicon Wafer Supply Agreement (Contract No.:
SSC000120) as of April 7, 2008 (the “Long Term Contract”). The parties hereby
enter into a Supplemental Agreement I to Silicon Wafer Supply Agreement
(“Supplemental Agreement I”) to amend the products supply during the term of the
Long Term Contract pursuant to Article 1.1 and Article 17 thereof. Based on the
principles of equality and mutual benefit, the parties, through friendly
negotiation, agree as the following:

      

      1.         The
provisions with respect to supply of silicon wafers during the year of 2008 and
2009 as provided in Annex B to the Long Term Contract are hereby
terminated.  The parties shall no longer purchase and deliver silicon
wafers pursuant to provisions with respect to the supply amount, price and
delivery progress of silicon wafers during the year of 2008 and 2009 as provided
in Annex B to the Long Term Contract; however, the buyer shall be responsible
for payment pursuant to the Long Term Contract with respect to products that
have been delivered to the buyer by the seller according to the amount and
delivery schedule during 2008 as provided in Annex B to the Long Term
Contract.

      

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      
        
          
            	*
      Confidential treatment has been requested for certain portions omitted
      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act
      of 1934, as amended. Confidential portions of this Exhibit have been
      separately filed with the Securities and Exchange
      Commission.

          

          
            
              

            

          

        

      

      2.         In
addition to supply of silicon wafer from 2010 to 2015 as provided in Annex B to
the Long Term Contract (the “Original Supply”), the parties agree on additional
supply of monocrystalline solar cells (125x125mm) from 2010 to 2014 (the
“Additional Supply”) and shall agree on the price thereof. Pursuant to the above
amendment, the parties shall perform the Additional Supply from 2010 to 2014
according to provisions of amount, price and delivery progress, etc. as provided
in Annex B-1 hereto in addition to the Original Supply from 2010 to 2015
according to provisions of amount, price, and delivery progress, etc. as
provided in Annex B to the Long Term Contract. The parties shall commence the
supply of products since January 2010 pursuant to the provision above
mentioned.

      

      3.         The
prepayment provided in the Long Term Contract are the prepayment for the
Original Supply, of which the buyer has paid the amount of ***, the balance of
*** shall be paid by the buyer pursuant to Annex B to the Long Term Contract.
The buyer shall pay *** to the seller as the prepayment of Additional Supply,
the amount and payment schedule of which are provided in Annex B-2 hereto. The
prepayment for the Additional Supply may be deducted in the amount of *** of the
total amount for each month as the payment of Additional Supply of the each
month since January 1, 2011 until December 31, 2014. Except otherwise provided
herein, the provisions of other aspects of prepayment shall be subject to the
Long Term Contract.

      

      4.         The
quality specification of products of Additional Supply shall be subject to Annex
A-1 hereto, while the quality specification for the Original Supply shall be
subject to Annex A to the Long Term Contract.

      

      5.         As
the amendment to the Long Term Contract, this Supplemental Agreement I shall
amend those provisions in the Long Term Contract as provided herein. The parties

       

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      
        
          
            	*
      Confidential treatment has been requested for certain portions omitted
      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act
      of 1934, as amended. Confidential portions of this Exhibit have been
      separately filed with the Securities and Exchange
      Commission.

          

          
            
              

            

          

        

      

      agree
that the remaining provisions of the Long Term Contract shall remain in effect
and be performed by and applicable to the parties. Other matters with respect to
Additional Supply shall be performed pursuant to the Long Term
Contract.

      

      6.         Each
party shall, unless with prior written consent of the other party, keep any
material or information related to this Supplemental Agreement I confidential,
and shall not directly or indirectly disclose relevant information it acquired
with respect to the other party, except that the laws and regulations require
otherwise, or either party exercise its legal rights.

      

      7.         The
interpretation and performance of this Supplemental Agreement I shall be subject
to the existing laws of China.

      

      8.         For
matters not provided herein, the parties shall otherwise agree in writing, which
shall have the same legal effect as this Supplemental Agreement I.

      

      9.         This
Supplemental Agreement I shall come into effect upon its signature by the legal
representative or authorized representative of the parties and affixed with
corporate seals hereon.

      

      10.         This Supplemental Agreement I shall be
in eight counterparts, four of which shall be held by each party, and each
counterpart shall have the same effect.

      

      [Signature
Page Follows]

      

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      
        
          
            	*
      Confidential treatment has been requested for certain portions omitted
      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act
      of 1934, as amended. Confidential portions of this Exhibit have been
      separately filed with the Securities and Exchange
      Commission.

          

          
            
              

            

          

        

      

      
        
          
            	
                    Buyer

                  	
                    JingAo
      Solar Co., Ltd

                  	
                    Seller

                  	
                    Jiangsu
      Zhongneng Silicon Technology Development Co., Ltd.

                  
	 	 	 	 
	
                    Signed
      By

                  	 
      	
                    Signed
      By

                  	 
      
	 	 	 	 
	
                    Date

                  	
                    August
      17, 2008

                  	
                    Date

                  	
                    August
      17, 2008

                  

          

        

      

      

      

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      
        
          
            	*
      Confidential treatment has been requested for certain portions omitted
      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act
      of 1934, as amended. Confidential portions of this Exhibit have been
      separately filed with the Securities and Exchange
      Commission.

          

          
            
              

            

          

        

      

      Annex
A-1

       

      Quality
Specification for Additional Supply from 2010 to 2014

       

      
        	
                Crystalline
      Type

              	
                Monocrystalline
      silicon wafers

              
	
                Dimensions

              	
                125mm×125mm±0.5mm

              
	
                Thickness

              	
                200μm±20μm

              
	
                Diameter

              	
                150mm±0.5mm

              
	
                Angle
      Variation

              	
                90+/-0.5°

              
	
                Boarder
      Angel Width

              	
                20.0~22.5mm

              
	
                TTV

              	
                ≤30μm

              
	
                Camber

              	
                ≤75μm

              
	
                Conductance
      Type

              	
                P
      Type

              
	
                Steering

              	
                <100>+/-1°

              
	
                Oxygen

              	
                ≤1.0×1018
      atms/cm3

              
	
                Carbon

              	
                ≤1.0×1017
      atms/cm3

              
	
                Resistivity

              	
                0.5~3.0Ω·cm
      &
      3.0~6.0Ω·cm

              
	
                Life
      time

              	
                ≥10
      μs

              
	
                Crack
      and Pit

              	
                Not
      visible to naked eyes

              
	
                Saw
      Mark

              	
                ≤20
      μm

              
	
                Position
      Angel

              	
                90±0.5°

              
	
                Edge
      Defect

              	
                depth<
      0.5mm, length< 1.5mm

              
	
                Surface
      Condition

              	
                Original
      cut, clean

              
	
                Pollution

              	
                 

                dust/grease-free;
      no cleaning agent residue

                 

              

      

      

      The
parties agree to renegotiate the thickness of products at the end of every 12
months upon the commencement of the Additional Supply, and to determine the
adjusted thickness according to the market technology condition then in effect.
If the parties fail to determine an adjusted thickness, the specification in
this Annex A-1 shall apply.

       

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      
        
          
            	*
      Confidential treatment has been requested for certain portions omitted
      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act
      of 1934, as amended. Confidential portions of this Exhibit have been
      separately filed with the Securities and Exchange
      Commission.

          

          
            
              

            

          

        

      

      Annex
B-1

      Amount
and Price for Additional Supply from 2010 to 2014

      

      

      
        
          
            
              
                
                  
                    
                      
                        
                          
                            	
                                    Amount
      and Price for Additional Supply of Monocrystalline Silicon Wafers
      (125x125mm)from 2010 to 2014

                                  
	
                                    Year

                                  	
                                     

                                  	
                                    2010

                                  	
                                    2011

                                  	
                                    2012

                                  	
                                    2013

                                  	
                                    2014

                                  	
                                    Total

                                  
	
                                    Quantity
      of Monocrystalline Silicon Wafers (125x125mm)

                                  	
                                    In
      Pieces

                                  	
                                    ***

                                  	
                                          
                                      ***

                                    

                                  	
                                          
                                      ***

                                    

                                  	
                                          
                                      ***

                                    

                                  	
                                          
                                      ***

                                    

                                  	
                                          
                                      ***

                                    

                                  
	
                                    Unit
      Price of Monocrystalline Silicon Wafers (125x125mm), tax
      included

                                  	
                                    RMB/Piece

                                  	
                                          
                                      ***

                                    

                                     

                                  	
                                          
                                      ***

                                    

                                     

                                  	
                                          
                                      ***

                                    

                                     

                                  	
                                          
                                      ***

                                    

                                  	
                                          
                                      ***

                                    

                                  	
                                     

                                  
	
                                    Total
      Price of Monocrystalline Silicon Wafers (125x125mm), tax
      included

                                  	
                                    RMB

                                  	
                                          
                                      ***

                                    

                                     

                                  	
                                          
                                      ***

                                    

                                     

                                  	
                                          
                                      ***

                                    

                                     

                                  	
                                          
                                      ***

                                    

                                     

                                  	
                                          
                                      ***

                                    

                                  	
                                          
                                      ***

                                    

                                     

                                  
	
                                    Total
      Amount of the Contract

                                  	
                                     

                                  	
                                     

                                  	
                                     

                                  	
                                     

                                  	
                                     

                                  	
                                     

                                  	
                                          
                                      ***

                                    

                                     

                                  

                          

                        

                      

                    

                  

                

              

            

          

        

      

      

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      
        
          
            	*
      Confidential treatment has been requested for certain portions omitted
      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act
      of 1934, as amended. Confidential portions of this Exhibit have been
      separately filed with the Securities and Exchange
      Commission.

          

          
            
              

            

          

        

      
        
          
            
              	
                      Notes:

                    
	 
	
                      1.
      Both parties should negotiate and determine the supply amount for the
      following year in December of the preceding supply year according to the
      Seller’s capacity, production plan and the Buyer’s purchasing power. If
      the supply quantity cannot be determined in December, the supply quantity
      for the following year shall be determined according to the average
      monthly quantity of the current year. The unit price (tax included)
      multiplies the monthly supply quantity equals payment of the current
      month.

                    
	 
	
                      2.
      The Buyer should pay to the Seller in full for the next month’s supply
      before the *** of each month 2010 shall be made in full before
      ***.

                    
	 
	
                      3.
      The tax for the above price is 17%, if government tax is adjusted, price
      will be adjusted
accordingly.

                    

            

          

        

      

      

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      
        
          
            	*
      Confidential treatment has been requested for certain portions omitted
      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act
      of 1934, as amended. Confidential portions of this Exhibit have been
      separately filed with the Securities and Exchange
      Commission.

          

          
            
              

            

          

        

      Annex
B-2  Amount of Prepayment and Payment Schedule of Additional Silicon
Wafers

      

      
        
          
            	
                    Prepayment
      Amount in total

                  	
                    RMB

                  	
                    ***

                  	
                     

                  	
                     

                  	
                     

                  	
                     

                  
	
                    Installment
      payment date

                  	 
      	
                    2008-10-15

                  	
                    2009-4-25

                  	
                    2009-7-25

                  	
                    2009-10-25

                  	
                    Total

                  
	
                    Installment
      amount

                  	
                    RMB

                  	
                    ***

                  	
                    ***

                  	
                    ***

                  	
                    ***

                  	
                    ***

                  

          

        

      

      
      

    

    
    

    

    

    Note:
The Buyer is required to pay the installment amount before each installment
payment date, otherwise, the Buyer will assume liabilities for breach according
to the long-term contract.ex4-16.htm

    
      
        	*
      Confidential treatment has been requested for certain portions omitted
      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act
      of 1934, as amended. Confidential portions of this Exhibit have been
      separately filed with the Securities and Exchange
      Commission.

      

      
        
          

        

      

    

     

    
      Exhibit 4.16

      English
translation for reference purpose only

       

      

      Supplemental
Agreement II

      

      Party
A: Jiangsu Zhongneng Silicon Technology Development Co., Ltd.

      

      Party
B: JingAo Solar Co., Ltd.

      

      Party
C: JA Solar Technology YangZhou Co.,Ltd

      

      Whereas,
the parties entered into a Silicon Wafer Supply Agreement (Contract No.:
SSC000120) and a Polysilicon Supply Agreement (Contract No.: SSC00230) as of
April 7, 2008 and August 17, 2008, respectively (together, the “Original
Agreements”), a Supplemental Agreement I to the Silicon Wafer Supply Agreement
as of August 17, 2008 (“Supplemental Agreement I”), and a Memorandum in January
2009.

      

      Now,
therefore, the parties, without prejudice to the effect of the Original
Agreements, conducted negotiations based on equality and voluntary to amend
provisions regarding, among other things, pricing, quality, and prepayment,
etc. stipulated in the Original Agreements and Supplemental Agreement I as
follows:

      

      
        	
                 
      

              	
                1.

              	
                Pricing

              

      

      

      The
unit price (including tax) of products for April of the second quarter under the
provision of quantity and price of quarterly supply for 2009 provided in
Attachment B to the Polysilicon Supply Agreement shall be amended as *** per
kilogram.

      

      
        	
                 
      

              	
                2.

              	
                Quantity

              

      

      

      The
quantity of products for April of the second quarter under the provision of
quantity and price of quarterly supply for 2009 provided in Attachment B to the
Polysilicon Supply Agreement shall be amended as *** tons.

      

      
        	
                 
      

              	
                3.

              	
                Payment
      Terms

              

      

      

      The
payment terms provided in Attachment B to the Polysilicon Supply Agreement shall
be amended as follows: Party B and Party C shall make ***% payment on April 30,
2009, in accordance with the terms provided in the Original Agreements, which
shall be ***; the remaining of the payment, which is ***, shall be paid
according to the VAT invoice issued by Party A within *** days following Party B
and Party C’s receipt and inspection of the products supplied by Party A. In the
event that the delivered products fail to pass the inspection, Party A shall
replace such defected products with conforming products.

      

      
        
          
          

        

        
          1

          
            

          

        

        
          
          

        

      

      
        
          
            	*
      Confidential treatment has been requested for certain portions omitted
      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act
      of 1934, as amended. Confidential portions of this Exhibit have been
      separately filed with the Securities and Exchange
      Commission.

          

          
            
              

            

          

        

         

      

      The
specification and quality standard of products provided in Attachment A to the
Polysilicon Supply Agreement shall be amended as follows:

      

      
        	
                 
      

              	
                (1)

              	
                The
      polysilicon products sold by Party A to Party B and Party C shall meet the
      3rd
      grade standard provided in the National Standard of Polysilicon of the
      People’s Republic of China (draft for review), which are: base P
      resistivity ≥20Ω·cm,
      base B resistivity ≥100Ω·cm,
      minority-carrier life time≥30μs,
      Oxygen≤1.5×1017atoms/cm3, Carbon≤4.5×1016atoms/cm3, and TMI (Total metal
      impurities, including Fe, Cr, Ni, Cu, and Zn)
  ≤0.2ppmw.

              

      

      
        	
                 
      

              	
                (2)

              	
                Packaging
      standards: products shall be packed in plastic bags, of which ***
      tons shall be packed in paper box and the remaining *** tons shall be
      packed in plastic pallet box. The package shall be moisture resistant and
      anti-broken to avoid damage occurred during transportation and
      storage.

              

      

      

      
        	
                 
      

              	
                4.

              	
                Delivery

              

      

      

      Party
A shall, upon receipt of the payment of ***% of the total price made by Party B
and Party C pursuant to Article 3 of this Supplemental Agreement, shall make the
products available for delivery pursuant to delivery plans to be agreed by the
parties, so as to enable Party B and Party C to arrange for the pick up.
Delivery plans of Party A are as follows:

      

      The
*** tons products packed in plastic pallet box shall be delivered from May
4th
to May 8th, which
shall be *** tons for each day; The *** tons of products packed in paper box
shall be delivered from May 11th to May
15th, which
shall be *** tons for each day.

      

      
        	
                 
      

              	
                5.

              	
                Product
      Warranty Period

              

      

      

      The
parties hereby agree that Party A shall provide a *** days warranty period for
products supplied by Party A upon its delivery. If nonconforming products are
found during such period, Party A shall replace such defected products with
conforming products within *** days upon receipt of Party B and Party C’s
feedback on product quality. If Party A fails to replace defected products
within the *** days period, Party A shall return the payment of such products in
full amount to Party B and Party C within *** days upon expiry of such ***
days period.

      

      
        	
                 
      

              	
                6.

              	
                The
      parties hereby clarify that this Supplemental Agreement intends to amend
      relevant provisions in the Original Agreements and Supplemental Agreement
      I, the remaining provisions in the Original Agreements and Supplemental
      Agreement I shall remain in effect and binding upon the parties. The
      parties shall perform the rights and obligations under the Original
      Agreements, Supplemental Agreement I, and the Memorandum, and shall be
      held responsible for breach of the Original Agreements, additional
      agreements and Supplemental Agreement I. Upon Party B and Party C fully
      perform their sourcing quantity for April provided in this Supplemental
      Agreement, Party A shall be deemed to have waived any claim of breach
      against Party B and Party C for non-performed quantity before April
      2009.

              

      

       

      
        
          
          

        

        
          2

          
            

          

        

        
          
          

        

      

      
        
          
            	*
      Confidential treatment has been requested for certain portions omitted
      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act
      of 1934, as amended. Confidential portions of this Exhibit have been
      separately filed with the Securities and Exchange
      Commission.

          

          
            
              

            

          

        

         

      

      
        	
                 
      

              	
                7.

              	
                The
      parties covenants that this Supplemental Agreement amends the Original
      Agreements, Supplemental Agreement I, and the Memorandum, and that the
      parties shall perform their obligations and take their responsibilities
      strictly in accordance with the Original Agreements, Supplemental
      Agreement I, the Memorandum and this Supplemental
    Agreement.

              

      

      

      
        	
                 
      

              	
                8.

              	
                This
      Supplemental Agreement shall come into effect upon its signature by the
      authorized representative of the parties and affixed with seals
      hereon.

              

      

      

      
        	
                 
      

              	
                9.

              	
                This
      Supplemental Agreement shall be in six copies, two of which shall be held
      by each party, and each copy shall have the same
  effect.

              

      

      

      [Signature
Page Follows]

       

      
        
          
          

        

        
          3

          
            

          

        

        
          
          

        

      

      
        
          
            	*
      Confidential treatment has been requested for certain portions omitted
      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act
      of 1934, as amended. Confidential portions of this Exhibit have been
      separately filed with the Securities and Exchange
      Commission.

          

          
            
              

            

          

        

         

      

      Party
A: Jiangsu Zhongneng Silicon Technology Development Co., Ltd. (Corporate
Seal)

      

      

      Signature
of Authorized Representative:

      

      

      

      Party
B: JingAo Solar Co., Ltd.

      

      

      Signature
of Authorized Representative:

      

      

      

      Party
C: JA Solar Technology YangZhou Co.,Ltd. (Corporate Seal)

      

      

      Signature
of Authorized Representative:

      

      

      

      

      

      Date:                                ,
2009

       

       

      4

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