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Payables to Former Subsidiaries
3 Months Ended
Mar. 31, 2021
Receivables From Former Subsidiaries [Abstract]  
Payables to Former Subsidiaries
6.Payables to Former Subsidiaries

Payables to former subsidiaries as of December 31, 2020 and March 31, 2021 consisted of the following:


   December 31,   March 31, 
   2020   2021 
BAK Tianjin  $29,852   $21,365 
BAK Shenzhen   597,138    361,273 
    626,990    382,638 

Balance as of December 31, 2020 and March 31, 2021 consisted of payables for purchase of inventories from BAK Tianjin, BAK Shenzhen 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.


The above balance is unsecured and non-interest bearing and repayable on demand.