Document:

Exhibit
      10.5

    
       

      Summary
        of Guaranty Agreement of Maximu Amount entered into between BAK Internatiional
        Limited (“BAK International”) and Shenzhen Branch, China Construction Bank
        (“China Construction Bank”) on February 14, 2007.

      

      Summary
        of main contents:

       

      	
              ·

            	
              Contract
                number: bao 2006 Zong 1279042-1;

            

      	 	 

      	
              ·

            	
              As
                guarantor, BAK International undertakes to assume joint and several
                liabilities for the Company’s indebtedness towards China Construction Bank
                under the Comprehensive Credit Facility Agreement of Maximum Amount
                (No.:
                Jie2006Zong1279042) (“Master Agreement”) and maximum amount secured is
                RMB150 million.

            

      	 	 

      	
              ·

            	
              Secured
                items include the loan principal, interest, penalty interest, breach
                of
                contract compensation and all the expenses incurred for China Construction
                Bank to realize its creditor’s right under the Master Agreement
                ;

            

      	 	 

      	
              ·

            	
              Guaranty
                period: the period of guaranty shall be determined in accordance
                with each
                financing under the master agreement. The period of guaranty for
                each
                financing shall be the start date of each financing under the master
                agreement and its supplementary agreement to the end of 2 years after
                the
                expiry of the performance period of the debt. In case that the extension
                agreement for the debt is agreed by the Obligor and your bank, the
                period
                of guaranty shall end at the end of 2 years after the expiry of the
                extended performance period of the debt.

            

      

      Headlines
        of articles omitted: 

       

      	
              ·

            	
              Creditor’s
                Right to be Secured 

            

      	 	 

      	
              ·

            	
              Method
                of Guaranty 

            

      	 	 

      	
              ·

            	
              Signature
                and Amendment of the Master Agreement

            

      	 	 

      	
              ·

            	
              Independency

            

      	 	 

      	
              ·

            	
              Undertakings

            

      	 	 

      	
              ·

            	
              Performance
                of Obligation of Guaranty Before Expiry

            

      	 	 

      	
              ·

            	
              Transfer
                of Amount Payable

            

      	 	 

      	
              ·

            	
              Engaging
                Bank

            

      	 	 

      	
              ·

            	
              Miscellaneous
                

            

      	 	 

      	
              ·

            	
              Applicable
                Law and Dispute Settlement

            

      	 	 

      	
              ·

            	
              Effectiveness

            

      	 	 

      	
              ·

            	
              StatementExhibit
      10.6

     

    Summary
      of Loan Agreement entered into by and between Shenzhen BAK Battery Co., Ltd.
      and
      Eastern Branch, Agricultural Bank of China dated March 5,
      2007.

    

    Summary
      of main contents: 

     

    
      	
              ·

            	
              Contract
                number: NO.81101200700000405

            

    

    
      	 	 

    

    
      	
              ·

            	
              Loan
                Principal: RMB65 million;

            

    

    
      	 	 

    

    
      	
              ·

            	
              Loan
                term: it is payable in three installments as
                follows:

            

    

     

    RMB
      20
      million on August 27, 2007;

    RMB
      20
      million on August 30, 2007; and

    RMB
      25
      million on September 4, 2007.

     

    
      	
              ·

            	
              Interest
                rate: 90% of the benchmark rate issued by the People’s Bank of China, i.e.
                fixed rate of 5.022%;

            

    

     

    
      	
            	·	
              Penalty
                interest rate for delayed repayment: 5.022% plus 50%
                *5.022%;

            

    

     

    
      
        
          	
                	·	
                  Penalty
                    interest rate for embezzlement of loan proceeds: 5.022% *
                    2;

                

        

      

    

     

    
      	
              ·

            	
              Purpose
                of the loan is to provide working capital for the Company;
                

            

    

    
      	 	 

    

    
      	
              ·

            	
              Advanced
                repayment of loan needs to be approved by the Lender;
                

            

    

    
      	 	 

    

    
      	
              ·

            	
              Breach
                of contract penalties: suspension of loan un-provided, demand prepayment
                of loan principal and interest before maturity; imposition of punitive
                interest; compensation for the Lender’s expenses incurred due to the
                Company’s breach of contract such as lawyer’s fee, travel cost in case of
                litigation, etc.

            

    

    

    Headlines
      of articles omitted:

     

    
      	
              ·

            	
              Types
                of the loan 

            

    

    
      	 	 

    

    
      	
              ·

            	
              Clearing
                of the loan interest 

            

    

    
      	 	 

    

    
      	
              ·

            	
              Condition
                precedent to the drawing of the loan

            

    

    
      	 	 

    

    
      	
              ·

            	
              Rights
                and obligations of the borrower

            

    

    
      	 	 

    

    
      	
              ·

            	
              Rights
                and obligations of the lender 

            

    

    
      	 	 

    

    
      	
              ·

            	
              Guarantee
                of the loan 

            

    

    
      	 	 

    

    
      	
              ·

            	
              Dispute
                settlement 

            

    

    
      	 	 

    

    
      	
              ·

            	
              Miscellaneous
                

            

    

    
      	 	 

    

    
      	
              ·

            	
              Validity

            

    

    
      	 	 

    

    
      	
              ·

            	
              NotesExhibit
      10.7

     

    Summary
      of Loan Agreement entered into by and between Shenzhen BAK Battery Co., Ltd.
      and
      Eastern Branch, Agricultural Bank of China dated January 9,
      2007.

    

    Summary
      of main contents: 

     

    
      	
              ·

            	
              Contract
                number: NO.81101200700000043

            

    

    
      	 	 

    

    
      	
              ·

            	
              Loan
                Principal: RMB160 million;

            

    

    
      	 	 

    

    
      	
              ·

            	
              Loan
                term: six months starting from the date loan is actually provided
                to the
                Company.

            

    

    
      	 	 

    

    
      	
              ·

            	
              Interest
                rate: 90% of the benchmark rate issued by the People’s Bank of China, i.e.
                fixed rate of 5.022%;

            

    

     

    
      
        
          	
                	·	
                  Penalty
                    interest rate for delayed repayment: 5.022% plus 50%
                    *5.022%;

                

        

         

      

    

    
      
        
          	
                	·	
                  Penalty
                    interest rate for embezzlement of loan proceeds: 5.022% *
                    2;

                

        

      

    

     

    
      	
              ·

            	
              Purpose
                of the loan is to provide working capital for the Company;
                

            

    

    
      	 	 

    

    
      	
              ·

            	
              Advanced
                repayment of loan needs to be approved by the Lender;
                

            

    

    
      	 	 

    

    
      	
              ·

            	
              Breach
                of contract penalties: suspension of loan un-provided, demand prepayment
                of loan principal and interest before maturity; imposition of punitive
                interest; compensation for the Lender’s expenses incurred due to the
                Company’s breach of contract such as lawyer’s fee, travel cost in case of
                litigation, etc.

            

    

    

    Headlines
      of articles omitted:

     

    
      	
              ·

            	
              Types
                of the loan 

            

    

    
      	 	 

    

    
      	
              ·

            	
              Clearing
                of the loan interest 

            

    

    
      	 	 

    

    
      	
              ·

            	
              Condition
                precedent to the drawing of the loan

            

    

    
      	 	 

    

    
      	
              ·

            	
              Rights
                and obligations of the borrower

            

    

    
      	 	 

    

    
      	
              ·

            	
              Rights
                and obligations of the lender 

            

    

    
      	 	 

    

    
      	
              ·

            	
              Guarantee
                of the loan 

            

    

    
      	 	 

    

    
      	
              ·

            	
              Dispute
                settlement 

            

    

    
      	 	 

    

    
      	
              ·

            	
              Miscellaneous
                

            

    

    
      	 	 

    

    
      	
              ·

            	
              Validity

            

    

    
      	 	 

    

    
      	
              ·

            	
              Notes

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