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Concentrations and Credit Risk (Tables)
 6 Months Ended
Jun. 30, 2020
Concentrations and Credit Risk [Abstract]  
Schedule of revenue by major customers by reporting segments

   Three months ended June 30, 
   2019   2020 
Customer B  $2,633,652    61.66%  $2,584,606    55.89%
Customer D   *    *    1,626,944    35.18%
Shenzhen BAK   769,052    18.01%   *    * 

 

*Comprised less than 10% of net revenue for the respective period.

 

   Six months ended June 30, 
   2019   2020 
Customer A  $1,527,998    16.18%  $*    * 
Customer B   3,875,327    41.04%   4,677,699    40.59%
Customer C   1,066,260    11.29%   *    * 
Customer D   *    *    2,009,845    17.44%
Customer E   *    *    3,767,605    32.69%
Customer F   1,025,998    10.87%   *    * 

 

*Comprised less than 10% of net revenue for the respective period.

Schedule of accounts receivable by major customer

   December 31, 2019   June 30, 2020 
Customer A  $902,309    11.47%  $*    * 
Customer B   1,725,293    21.93%   1,740,448    15.19%
Customer C   1,713,628    21.78%   1,519,014    13.26%
Customer G   830,821    10.56%   *    * 
Customer E   *    *    4,103,268    35.82%

 

*Comprised less than 10% of account receivable for the respective period.
Schedule of net purchase by suplier
  Three months ended June 30, 
   2019   2020 
Supplier A  $326,949    12.03%  $*    * 
Supplier B   402,026    14.79%   *    * 
Supplier C   278,794    10.25%   *    * 
Supplier D   *    *    294,786    23.52%

 

*Comprised less than 10% of net purchase for the respective period.

 

   Six months ended June 30, 
   2019   2020 
Supplier E  $996,484    17.26%  $*    * 
Shenzhen BAK   *    *    3,841,680    64.96%
Schedule of accounts payable by suplier
  December 31, 2019   June 30, 2020 
Supplier B  $1,126,582    10.10%  $1,096,148    11.53%
Schedule of transactions with the former subsidiaries

   Three months ended
June 30,		   Six months ended
June 30,		 
   2019   2020   2019   2020 
Purchase of inventories from                
BAK Shenzhen*  $65,102   $        -   $65,102   $- 
Shenzhen BAK*   -    -    -    3,841,680 
                     
Sales of finished goods to                    
BAK Shenzhen*   685,211    -    769,052    69,226 

 

*Mr. Xiangqian Li, the former CEO, is a director of this company.