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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.

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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References No definition available. + Details
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