Exhibit
4.73

    English Translation of
Chinese Language Document

    


    Sales
Contract

    


    Contract
No.: XS120090076

     Signing
Place: the Seller’s location

                                      Signing
Date: 2009-02-26

    


    
      
        	
                The
      Seller: China Sunergy (Nanjing) Co., Ltd.

              	 
      	
                The
      Buyer: CEEG (Shanghai) Solar Science & Technology Co.,
      Ltd.

              
	
                Address:
      No. 123, West Focheng Road, Economy and Technology Development Zone,
      Jiangning, Nanjing

              	 
      	
                Address:
      No. 68 West Gangde Road, Songjiang District, Shanghai

              
	
                Postal
      code: 211100

              	 
      	
                Postal
      code: 214128

              
	
                Contact
      person: Jianhua Zou

              	 
      	
                Contact
      person: Qiang Tao

              
	
                Tel.:
      025-52766767

              	 
      	
                Tel.:
      021-57850711

              
	
                Fax:
      025-52766767

              	
                  

              	
                Fax:
      021-57850700

              


      

    

    


    Through
amicable consultation and in accordance with the Contract Law of the People’s Republic of China, the
parties hereof agreed to enter into the following contractual terms regarding
purchase of the following goods for mutual compliance and
performance:

    
      	
              1.

            	
              Goods
      summary

            


    

    
      
        
          
            
              
                
                  
                    
                      
                        
                          
                            
                              
                                
                                  
                                    
                                      
                                        
                                          
                                            
                                              
                                                
                                                  
                                                    	
                                                            Subject

                                                             

                                                          	
                                                            Specification
      and parameter

                                                          	
                                                            Quantity

                                                             

                                                          	
                                                            Unit

                                                          	
                                                            Unit
      price (RMB)

                                                             

                                                          	
                                                            Amount
      (RMB)

                                                          
	
                                                            Monocrystalline
      125 cells A

                                                          	
                                                            ≥16.75%

                                                          	
                                                            2

                                                          	
                                                            MW

                                                          	
                                                            13.6
      Yuan/W

                                                          	
                                                            Around
      26,900,000

                                                          
	
                                                            Monocrystalline
      125 cells A2, A3

                                                          	
                                                            ≥16.75%

                                                          	
                                                            13.3
      Yuan/W

                                                          
	
                                                            Total
      amount (in words): Around RMB twenty-six million nine hundred
      thousand

                                                          
	
                                                            Remark:
      the price includes 17% valued-added tax (VAT).

                                                          
	
                                                            After
      the quantity of goods picked up by the Buyer exceeds 1MW, the parties may
      renegotiate the price by supplementary
  agreement.

                                                          


                                                  

                                                

                                              

                                            

                                          

                                        

                                      

                                    

                                  

                                

                              

                            

                          

                        

                      

                    

                  

                

              

            

          

        

      

    

    


    
      	
              2.

            	
              Time
      and terms of payment

            


    

    Within one month after the
effectiveness of this contract, the Seller shall deliver to the Buyer the solar
cells in installments with the quantity, specifications and types provided in
this contract.  The Buyer shall remit the advance payment which
accounts for 50% of total price of cells of each shipment into the account
designated by the Seller within three days before the delivery of each shipment
and then pick up the goods. As for the remaining 50% of each payment for goods,
the Seller allows the Buyer to accumulate such amount to the credit facility of
RMB 20 million granted to the Buyer (the credit facility of RMB 20 million is
agreed in the contract numbered XS120080200).  The Buyer shall pay up
the amount owed within the credit facility before March 31, 2009, otherwise, it
shall pay to the Seller a default penalty of 0.04% of the total payment delayed
per day.

    A/C No.
of Jiangning Sub-branch of China Merchants Bank: 078002380175610001 (The Seller
will not accept other methods of payment)


    
      
         


      

      
        1

        
          

        

      

      
         


      

    

    


    
      	
              3.

            	
              Packing
      requirements: The goods shall be packed in carton boxes suitable for
      highway transportation so as to meet requirements for long-distance and
      long-time transportation.

            


    

    


    
      	
              4.

            	
              Place
      and term of delivery

            


    

    4.1 Place of delivery: the Seller’s
location.

    4.2 The Buyer shall be responsible for
the transportation and the corresponding insurance of the goods.  If
the Buyer requires the Seller to handle the transportation affairs for it, it
shall bear the costs and risks of the transportation and shall buy insurance by
itself.

    4.3 Delivery in installments
allowed.  The Buyer shall remit the payment which accounts for 50% of
such goods into the account designated by the Seller based on the actual
delivery quantity and amount within three working days upon receiving the
delivery notice marked with the specific power list issued by the
Seller.

    4.4 The Seller shall deliver all the
goods of such shipment within 7 days upon receiving such 50%
payment.

    4.5 The Seller shall provide VAT
invoices to the Buyer within 10 days after each delivery.

    


    
      	
              5.

            	
              Quality
      requirements and technical
standards:

            


    

    See Appendix I (i.e. China Sunergy
(Nanjing) Co., Ltd. Products Detailed Specifications. Shipment and
transportation terms in Article 5.4 thereof are inapplicable).

    


    
      	
              6.

            	
              Quality
      inspection, quantity and objection

            


    

    The Buyer shall complete quantity and
quality inspection in accordance with the standard prescribed hereunder within
seven days after picking up each shipment of goods. Any quality claims shall be
issued by the Buyer in writing within three days of detection, and shall be
inspected by a third party agreed upon by both parties.  If the Buyer
fails to raise a quality claim within ten days after picking up each shipment of
goods, the Seller’s products shall be deemed as qualified.  If the
Buyer fails to raise a quantity claim within seven days after picking up each
shipment of goods, the quantity shall be deemed as complying with the
agreement.

    


    
      	
              7.

            	
              Transfer
      of Contractual Rights and
Obligations

            


    

    Neither
party may transfer all or part of the rights and obligations hereunder without
written consent of the other party.

    


    
      	
              8.

            	
              Confidentiality

            


    

    The
parties hereto and their respective employees, agents, representatives and
counsels shall treat the terms and conditions under this contract and any of its
supplementary agreements as business secrets and shall not disclose the
information to any third party without consent of the other party.
Otherwise, the defaulting party shall compensate as much as twice of the direct
or indirect losses to the other party.

    


    
      	
              9.

            	
              Force
      majeure

            


    

    If any
party fails to perform the contract due to any force majeure event, the affected
party shall notify the other party in writing within seven days upon the
occurrence of such event, and shall present written evidence issued by the
relevant authority within fifteen days upon the end of such event. The affected
party could be partially or wholly exempted from the liabilities in the light of
the impact caused by such force majeure event. Where an event of force majeure
occurs after the party’s delay in performance, the defaulting party shall not be
exempted from its liabilities.

     

    
      
        
        

      

      
        2

        
          

        

      

      
        
        

      

    

    
      	
              10.

            	
              Integrity
      Assurance

            


    

    It shall
be deemed as damage to the Seller’s interest if the Buyer and its staff directly
or indirectly give, in the name of the company or an individual, a gift of
money, valuables, securities or provide an improper interest in other forms to
any employee of the Seller, or if the Buyer and its staff carries out a
transaction similar to this contract, in the name of the company or an
individual, with any employee of the Seller or any third person introduced by
such employee. The Buyer shall compensate as much as twice of the direct or
indirect losses incurred by the Seller for such reason, and shall be liable for
the liquidated damages of 20% of the amount of this contract per breach (up to
RMB 1,000,000).

    The
integrity report method of the Seller: China Sunergy (Nanjing) Co., Ltd.
Supervision Committee 025-52766726, JC@chinasunergy.com

    


    
      	
              11.

            	
              Dispute
      resolution

            


    

    Any and
all disputes arising from the validity, performance or interpretation of this
contract shall first be resolved by the parties through amicable consultation.
In case no settlement can been reached through consultation, the disputes shall
be governed by the people’s court of first instance with jurisdiction where the
Buyer is located.  All related fees paid for litigation (including
attorney fees, travel fees, evidence collection fees, notarization fees and
litigation fees, etc) shall be borne by the losing party.

    


    
      	
              12.

            	
              Effective
      and miscellaneous

            


    

    12.1 The contract shall take effect
upon signature by both parties or seal by the special authorized agents. In case
the contract text covers more than one page, seal on the perforation shall be
affixed to such pages.

    12.2 The contract is in duplicate,
with each party holding one counterpart respectively. The two counterparts shall
have the same legal effect. The parties hereof shall send the original contract
to each other within three working days of the date hereof.  Fax
copies shall have the same effect as the originals.

    12.3 Any matters not mentioned herein
shall be mutually negotiated between both parties and set forth in the
supplemental agreements, which shall have the same legal effect as the contract.
If Appendix I conflicts with this contract, this contract shall
prevail.

    


    
      
        	
                The
      Seller: China Sunergy (Nanjing) Co., Ltd.

              	 
      	
                The
      Buyer: CEEG (Shanghai) Solar Science & Technology Co.,
      Ltd.

              
	
                Signature/seal:
      /s/

              	 
      	
                Signature/seal:
      /s/

              
	
                Date:

              	
                  

              	
                Date:

              


      

    


    
      
         


      

      
        3

        
          

        

      

      
         


      

    


    Supplementary
Contract

    


    Contract
No.: XS120090076-1

    Signing
Place: Jiangning District, Nanjing

    Signing
Date: 2009-03-17

    


    
      
        	
                The
      Seller: China Sunergy (Nanjing) Co., Ltd.

              	 
      	
                The
      Buyer: CEEG (Shanghai) Solar Science & Technology Co.,
      Ltd.

              
	
                Address:
      No. 123, West Focheng Road, Economy and Technology Development Zone,
      Jiangning, Nanjing

              	 
      	
                Address.:
      No. 68 West Gangde Road, Songjiang District, Shanghai

              
	
                Contact
      person: Jianhua Zou

              	 
      	
                Contact
      person: Qiang Tao

              
	
                Tel.:
      025-52766767

              	 
      	
                Tel.:
      021-57850711

              
	
                Fax:
      025-52766767

              	
                  

              	
                Fax:
      021-57850700

              


      

    

    


    Due to
market fluctuations, in order for both parties to seek better cooperation, the
following amendments are hereby made to the relevant provisions in the contract
(no. XS120090076) between the Seller and the Buyer dated as of January 23,
2009:

    1. With
the total quantity in Article 1 of the original contract (no. XS120090076)
unchanged, this contract hereby amend the prices as follows:

    
      
        
          
            
              
                
                  
                    
                      
                        	
                                Subject

                              	
                                Scope
      of conversion efficiency

                              	
                                Unit
      Price

                              
	
                                Monocrystalline
      125 cell  A, A2, A3

                              	
                                ≥16.75%

                              	
                                12.5
      Yuan/W

                              
	
                                Monocrystalline
      156 cell  A, A2, A3

                              	
                                ≥16.00%

                              	
                                12.5
      Yuan/W

                              


                      

                    

                  

                

              

            

          

        

      

    

    2. The
Buyer shall purchase from the Seller at least 1MW by March 2009.

    3. Other
provisions shall be carried out in accordance with the original contract (no.
XS120090076).

    4. This
contract shall become effective upon signature and sealing of both
parties.

    


    
      
        	
                The
      Seller: China Sunergy (Nanjing) Co., Ltd.

              	 
      	
                The
      Buyer: CEEG (Shanghai) Solar Science & Technology Co.,
      Ltd.

              
	
                Signature/seal:
      /s/

              	 
      	
                Signature/seal:
      /s/

              
	
                Date:

              	
                  

              	
                Date:

              


      

    


    
      
         


      

      
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