Exhibit 10.21

                                                                         Summary
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Summary of  Comprehensive  Credit  Facility  Agreement of Maximum Amount between
Shenzhen BAK Battery Co., Ltd. and Shenzhen  Branch,  China  Minsheng Bank dated
March 17, 2005.

Main contents
>>   Contract number: 2005 Shen Binhai Zong'e Zi NO.006;
>>   Maximum amount for credit facilities to be provided: RMB 40 million;
>>   Purpose: Working capital;
>>   Term: from March 17, 2005 to March 17, 2006;
>>   Minsheng  Bank is  entitled  to adjust  or cancel  the  credit  and  demand
     immediate  payment  of  the  loan  if  the  Company's  business  operations
     deteriorates severely, the Company loses its business reputation,  there is
     a  dispute  between  the  Company  and  Minsheng  Bank or  there is a major
     adjustment of the state monetary policy.

Terms that have been  omitted:  types of the line of credit;  use of the line of
credit; guarantee of the line of credit; commitment of the borrower;  commitment
of the lender; effectiveness; and dispute settlement.