XML 59 R47.htm IDEA: XBRL DOCUMENT v3.19.1
Concentrations and Credit Risk (Tables)
3 Months Ended
Mar. 31, 2019
Concentrations and Credit Risk [Abstract]  
Schedule of revenue by major customers by reporting segments

 

   Three months ended March 31, 
   2018   2019 
Customer A  $1,162,051    35.08%  $1,241,675    24.01%
Customer B   693,347    20.93%   *    * 
Customer C   383,773    11.58%   *    * 
Customer D   374,213    11.30%   *    * 
Customer E   *    *    1,321,428    25.55%
Customer F   *    *    1,071,820    20.72%
Customer G   *    *    735,494    14.22%

 

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

Schedule of accounts receivable by major customer

   December 31, 2018   March 31, 2019 
Customer A  $1,769,416    11.49%  $2,611,583    15.83%
Customer H   4,283,023    27.82%   4,389,574    26.61%
Customer I   2,293,257    14.89%   2,350,307    14.25%
Schedule of transactions with the former subsidiaries

 

   Three months ended
March 31,
 
   2018   2019 
Purchase of inventories from      
 BAK Tianjin  $480   $- 
           
Sales of finished goods to          
BAK Tianjin   10,080    - 
BAK Shenzhen*  $-   $83,841 

 

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