EXHIBIT 4.3
 Supplementary Agreement
 
     WHEREAS:
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*
    
    This portion of the Supplementary Agreement
has been omitted and filed separately with the Securities and
Exchange Commission, pursuant to Rule 24b-2. Page 3 of 6




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       *
    
    This portion of the Supplementary Agreement
has been omitted and filed separately with the Securities and
Exchange Commission, pursuant to Rule 24b-2. Page 4 of 6




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Page 5 of 6




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/s/ Wenwu Jiang
 /s/ Xiaohu Wang
 /s/ Xiaohu Wang
 /s/ Liuliu Shan
 Page 6 of 6




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Solar Polysilicon Supply Contract




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Polysilicon Supply Contract
      Preamble
   1. Definitions




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2. General Provisions




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3. Supply of Products
 3.1 Products




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3.2 Price
   3.3 Volume
 st
  th
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3.4 Quality
      3.5 Payment
 th
 th
   3.6 Delivery
 th
      *
    
    This portion of the Polysilicon Supply
Contract has been omitted and filed separately with the Securities
and Exchange Commission, pursuant to Rule 24b-2.




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4. Force Majeure and Exemptions of Liability




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5. Intellectual Property
  6. Confidentiality




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7. Ownership and Use of Drawings, Documents and Other Items
  8. Default, Termination and Cancellation




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9. Notices




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10. Language
  11. Choice of Laws
  12. Dispute Resolution
   13. Non-waiver
  14. Severability
  15. Assignment




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16. Survival
  17. Amendments
  18. Entirety
  19. Effectiveness




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Seller: Jiangsu Zhongneng Polysilicon Technology Development Co., Ltd.
   Buyer: CSI Cells Co., Ltd.




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Exhibit A
Specifications and Quality Standard of Solar Polysilicon Products
 m




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Exhibit B
Product Names, Product Supply Volumes, Product Delivery Progress, Product Payment Progress and
Product Prices
 Month
    
    Unit
    
    September
    
    October
    
    November
    
    December
    
    TotalPlanned volume of Products to supply
    
    Ton
    
    15
    
    15
    
    15
    
    15
    
    60Tax-included unit price
    
    Yuan/kg
    
    [****]*
    
    [****]*
    
    [****]*
    
    [****]*Tax-included total price
    
    Yuan
    
    [****]*
    
    [****]*
    
    [****]*
    
    [****]*
    
    [****]*Applicable tax rate
    
    
    
    17%
    
    17%
    
    17%
    
    17%Monthly payment date
    
    
    
    2008-8-25
    
    2008-9-25
    
    2008-10-25
    
    2008-11-25
  Quarter
    
    Unit
    
    Q1
    
    Q2
    
    Q3
    
    Q4
    
    TotalPlanned volume of Products to supply
    
    Ton
    
    100
    
    100
    
    125
    
    125
    
    450Tax-included unit price (RMB)
    
    Yuan/kg
    
    [****]*
    
    [****]*
    
    [****]*
    
    [****]*Tax-included total price
    
    yuan
    
    [****]*
    
    [****]*
    
    [****]*
    
    [****]*
    
    [****]*Applicable tax rate
    
    
    
    17%
    
    17%
    
    17%
    
    17%
 
 Notes:(1)
    
    Tax-included unit price and tax-included total price are subject to a value-added tax rate of
17% and shall be adjusted accordingly if value-added tax rate is adjusted.(2)
    
    Before the 25th day of each month, the Buyer shall make the full Payment for Goods
for next month to the Seller.(3)
    
    In December 2008, the Parties shall agree upon the monthly supply volume of 2009 depending on
the Sellers productive capacity and production plan as well as the Buyers purchase capacity.
Otherwise, the monthly supply volume of 2009 will be subject to the three-month average
monthly volume of each quarter of current year. Current months Payment for Goods is the value
from the tax-included unit price of current year multiplying the monthly Product supply volume
of current month.      *
    
    This portion of the Polysilicon Supply
Contract has been omitted and filed separately with the Securities
and Exchange Commission, pursuant to Rule 24b-2.




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Exhibit C
List of Affiliate of Parties Participating in this Contract and Format of Letter of Undertaking
 List of Affiliate




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Letter of Undertaking




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Letter of Undertaking




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Solar Silicon Wafer Supply Contract




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Silicon Wafer Supply Contract
      Preamble
   1. Definitions




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2. General Provisions




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3. Supply of Products
 3.1 Products
  3.2 Price
   3.3 Volume
 st
  th




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th
 3.4 Quality
      3.5 Payment
        *
    
    This portion of the Solar Silicon Wafer
Supply Contract has been omitted and filed separately with the
Securities and Exchange Commission, pursuant to Rule 24b-2.




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th
 th
   3.6 Delivery
 th
          *
    
    This portion of the Solar Silicon Wafer Supply Contract has been omitted and filed separately with the Securities and Exchange Commission, pursuant to Rule 24b-2.




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4. Force Majeure and Exemptions of Liability




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5. Intellectual Property
  6. Confidentiality




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7. Ownership and Use of Drawings, Documents and Other Items
  8. Default, Termination and Cancellation




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9. Notices
            10. Language
  11. Choice of Laws
  12. Dispute Resolution




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13. Non-waiver
  14. Severability
  15. Assignment
  16. Survival
  17. Amendments
  18. Entirety
  19. Effectiveness




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Seller: Jiangsu Zhongneng Polysilicon Technology Development Co., Ltd.
   Buyer: CSI Cells Co., Ltd.




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Exhibit A
Specifications and Quality Standard of Solar Silicon Wafer Products
  0 · £ m 0 £ m m m 17 18




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Exhibit B
 Payment Schedule of Advance Payment
 Payment amount of advance payment (RMB)Payment date of advance payment
    
    Unit: yuanBefore September 15, 2008
    
    [****]*Before November 30, 2008
    
    [****]*Before July 1, 2009
    
    [****]*Before April 30, 2010
    
    [****]*Total amount of advance payments
    
    [****]*
      *
    
    This portion of the Solar Silicon Wafer Supply Contract has been omitted and filed separately with the Securities and Exchange Commission, pursuant to Rule 24b-2.




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Exhibit C
Product Prices, Volumes and Delivery Schedule
  Year
    
    Unit
    
    
    2010
    
    
    2011
    
    
    2012
    
    
    2013
    
    
    2014
    
    
    2015
    
    
    TotalVolume
    
    Piece
    
    
    64,800,000
    
    
    
    126,000,000
    
    
    
    140,000,000
    
    
    
    140,000,000
    
    
    
    140,000,000
    
    
    
    140,000,000
    
    
    
    750,800,000Tax-included unit
price (RMB)
    
    Yuan/piece
    
    
    [****]*
    
    
    
    [****]*
    
    
    
    [****]*
    
    
    
    [****]*
    
    
    
    [****]*
    
    
    
    [****]*Tax-included total
price (RMB)
    
    Yuan
    
    
    [****]*
    
    
    
    [****]*
    
    
    
    [****]*
    
    
    
    [****]*
    
    
    
    [****]*
    
    
    
    [****]*
    
    
    
    [****]*
 
 Notes:(1)
    
    Tax-included unit price and tax-included total price are subject to a value-added tax rate of
17% and shall be adjusted accordingly if value-added tax rate is adjusted.(2)
    
    Before the 25th day of each month, the Buyer shall make the full Payment for Goods
for next month to the Seller.(3)
    
    In December of each year, the Parties shall agree upon the monthly supply volume of next year
depending on the Sellers productive capacity and production plan as well as the Buyers
purchase capacity. Otherwise, the monthly supply volume of next year will be subject to the
12-month average monthly volume of current year. Current months Payment for Goods is the
value from the tax-included unit price of current year multiplying the monthly Product supply
volume of current month.      *
    
    This portion of the Solar Silicon Wafer Supply Contract has been omitted and filed separately with the Securities and Exchange Commission, pursuant to Rule 24b-2.




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Exhibit D
 List of Affiliate of Parties Participating in this Contract and Format of Letter of Undertaking
 List of Affiliate




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Letter of Undertaking




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Letter of Undertaking