Document:

EXHIBIT 10.22

Summary of  Guaranty  Contract  of Maximum  Amount  Entered  Between  BAK HK and
Agricultural Bank on May 20th, 2005 ("Guaranty Contract 7")

     o    Contract    number:     (Shenzhen     Longgang)    Nongyin    Gaobaozi
          81905200500000068';

     o    As   guarantor,   BAK  HK  undertakes  to  assume  joint  and  several
          liabilities for the Company's  indebtedness  towards Agricultural Bank
          under Comprehensive  Agreement 2 from May 20th, 2005 to May 20th, 2006
          and maximum amount secured is RMB200 million.

     o    Secured items include the loan principal,  interest, penalty interest,
          breach of contract  compensation  and all the  expenses  incurred  for
          Agricultural Bank to realize its creditor's right under  Comprehensive
          Agreement 2;

     o    Guaranty period:

          ---  Two years from the expiry  date that the Company  should  fulfill
               its obligations in accordance with Comprehensive Agreement 2;

          ---  For discounted  commercial drafts, the term is two years from the
               expiry date of the discounted commercial drafts;

          ---  If term of Comprehensive Agreement 2 is extended, guaranty period
               shall be two  years  from the  expiry  date  for the  Company  to
               fulfill its obligations according to the extended agreement;

          ---  If due to the  provisions of relevant PRC law or  regulations  or
               any agreement reached under  Comprehensive  Agreement 2, any loan
               becomes  mature ahead of its term,  guaranty  period shall be two
               years starting from the advance mature date.EXHIBIT 10.23

Summary of Guaranty  Contract of Maximum Amount Entered Between Mr. Li Xiangqian
and Agricultural Bank on May 20th, 2005 ("Guaranty Contract 8")

          o    Contract   number:    (Shenzhen    Longgang)   Nongyin   Gaobaozi
               20050237999;

          o    As  guarantor,  Mr. Li  undertakes  to assume  joint and  several
               liabilities for the Company's  indebtedness  towards Agricultural
               Bank under  Comprehensive  Agreement 2 from May 20th, 2005 to May
               20th, 2006 and maximum amount secured is RMB200 million.

          o    Secured  items  include  the loan  principal,  interest,  penalty
               interest,  breach of contract  compensation  and all the expenses
               incurred for  Agricultural  Bank to realize its creditor's  right
               under Comprehensive Agreement 2;

          o    Guaranty period:

               ---  Two  years  from the  expiry  date that the  Company  should
                    fulfill its  obligations  in accordance  with  Comprehensive
                    Agreement 2;

               ---  For discounted commercial drafts, the term is two years from
                    the expiry date of the discounted commercial drafts;

               ---  If term of Comprehensive  Agreement 2 is extended,  guaranty
                    period  shall  be two  years  from the  expiry  date for the
                    Company to fulfill its obligations according to the extended
                    agreement;

               ---  If due to the  provisions of relevant PRC law or regulations
                    or any agreement  reached under  Comprehensive  Agreement 2,
                    any loan becomes mature ahead of its term,  guaranty  period
                    shall be two years starting from the advance mature date.EXHIBIT 10.24

Summary of Loan Agreement  Signed With  Agricultural  Bank Using the Credit Line
Under Comprehensive Agreement 2:

Contract No.:                           (Shenzhen  Longgang)  Nong  Yin  Jie  Zi
                                        (81101200500000299)

Loan Amount (RMB):                      20 million yuan

Contract Term:                          21th March 2005 ~ 21th September 2005

Liabilities  of Breach of Contract:     Breach of contract  penalty;  withdrawal
                                        of loan,  prepayment  of  principal  and
                                        interest before maturity,  attachment of
                                        assets; imposition of compound interest;
                                        lawyer's  fee and travel cost in case of
                                        litigation  due to the Company 's breach
                                        of contract etc.EXHIBIT 10.25

Summary of Loan Agreement  Signed With  Agricultural  Bank Using the Credit Line
Under Comprehensive Agreement 2:

Contract No.:                           (Shenzhen   Longgang)   Nong Yin Jie Zi
                                        (81101200500000334)

Loan Amount (RMB):                      19million yuan

Contract Term:                          24th March 2005 ~ 24th September 2005

Liabilities of Breach of Contract:      Breach of contract  penalty;  withdrawal
                                        of loan,  prepayment  of  principal  and
                                        interest before maturity,  attachment of
                                        assets; imposition of compound interest;
                                        lawyer's  fee and travel cost in case of
                                        litigation  due to the Company 's breach
                                        of contract etc.EXHIBIT 10.26

Summary of Loan Agreement  Signed With  Agricultural  Bank Using the Credit Line
Under Comprehensive Agreement 2:

Contract No.:                           (Shenzhen   Longgang)   Nong  Yin Jie Zi
                                        (81101200500000658)

Loan Amount (RMB):                      30 million yuan

Contract Term:                          25th March 2005 ~ 25th September 2005

Liabilities of Breach of Contract:      Breach of contract  penalty;  withdrawal
                                        of loan,  prepayment  of  principal  and
                                        interest before maturity,  attachment of
                                        assets; imposition of compound interest;
                                        lawyer's  fee and travel cost in case of
                                        litigation  due to the Company 's breach
                                        of contract etc.EXHIBIT 10.27

Summary of Loan  Agreement  signed by and between  the Company and  Agricultural
Bank on May 31th, 2005 ("Loan Agreement 6"):

     o    Contract number: Shenzhen Longgang Nong Jie Zi NO.81101200500000658.

     o    Loan Principal: RMB 16 million;

     o    Loan term:  one year starting from the date loan is actually  provided
          to the Company.

     o    Interest rate: fixed rate of 5.22%;

          Penalty interest rate for delayed repayment: 5.22% plus 50% *5.22%;

          Penalty interest rate for embezzlement of loan proceeds: 5.22% * 2;

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

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

     o    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.EXHIBIT 10.28

Summary of Loan Agreement signed by and between the Company and the Agricultural
Bank on June 2nd, 2005 ("Loan Agreement 7"):

     o    Contract number: Shenzhen Longgang Nong Jie Zi NO.81101200500000680.

     o    Loan Principal: RMB 15 million;

     o    Loan term:  one year starting from the date loan is actually  provided
          to the Company.

     o    Interest rate: fixed rate of 5.22%;

          Penalty interest rate for delayed repayment: 5.22% plus 50% *5.22%;

          Penalty interest rate for embezzlement of loan proceeds: 5.22% * 2;

     o    Purpose of the loan is to provide  working  capital for the Company to
          buy raw material;

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

     o    Breach of contract  penalties:  suspension of loan unprovided,  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.EXHIBIT 10.29

Summary of Comprehensive Credit Facilities Agreement by and between Shenzhen BAK
Battery Co., Ltd. (the "Company") and Development Bank dated as of April 7, 2005
("Comprehensive Agreement 1").

     a)   Contract number: is Shenfa Longgang zongzi NO.20050407001.

     b)   Contract term:  from April 7, 2005 to April 8, 2006, and the amount of
          credit to be extended by Development Bank is RMB 150 million.

     c)   Remedies in the event of breach of contract include  adjustment of the
          credit amount,  suspension of credit,  imposition of punitive interest
          and overdue  interest,  an increase of guarantee  deposit and the call
          back of loan principal and interest before maturity

     d)   Comprehensive Agreement 1 also has the following additional terms:

          o    All  unsettled  credit   facilities  under  the  Credit  Facility
               Agreement  with the  contract  number of Shenfa  Longgang  Zongzi
               No.200403055 shall be under the consolidated management of credit
               facilities under Comprehensive Agreement 1.

          o    Credit facilities under Comprehensive Agreement 1 can be used for
               working capital;

          o    The Company  should  submit its  financial  statement to the bank
               monthly. If the asset liability ratio of the company exceeds 70%,
               the sales  revenue or net asset of the  Company  declines  by 10%
               when  compared  with  the  same  period  of  the  previous  year,
               Development  Bank is  entitled  to  deem  the  credit  facilities
               matured before expiration of their term.

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