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Payables to Former Subsidiaries
6 Months Ended
Jun. 30, 2018
Payables to Former Subsidiaries [Text Block]
6. Payables to Former Subsidiaries

Payable to former subsidiaries as of December 31, 2017 and June 30, 2018 consisted of the following:

    December 31,     June 30,  
    2017     2018  
BAK Tianjin $ 282,682   $ 241,691  
BAK Shenzhen   22,020,039     15,479,515  
  $ 22,302,721   $ 15,721,206  

Balance as of December 31, 2017 and June 30, 2018 consisted of payables for purchase of inventories from BAK Tianjin and Shenzhen BAK. From time to time, the Company purchased products from these former subsidiaries that they did not produce to meet the needs of its customers.