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Payables to Former Subsidiaries (Tables)
 9 Months Ended
Sep. 30, 2017
Schedule of Advance From A Former Subsidiary [Table Text Block]
 

 

   December 31,     September 30,  
 

 

   2016     2017  
 

BAK Tianjin

 $ 194,744   $ 168,581  
 

Shenzhen BAK

   2,294,085     15,919,505  
 

 

   2,488,829     16,088,086