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RELATED PARTY BALANCES AND TRANSACTIONS (Tables) | 3 Months Ended
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Mar. 31, 2021
RELATED PARTY BALANCES AND TRANSACTIONS [Abstract] |
Related Party Balances and Transactions |
Prepaid expenses |  | March 31, 2021 |  |  | December 31, 2020 |
Ninebell |  | $ | 1,778 |  |  | $ | 1,607 |
Accounts payable |  | March 31, 2021 |  |  | December 31, 2020 |
Ninebell |  | $ | 2,925 |  |  | $ | 2,898 |
Shengyi |  |  | 1,585 |  |  |  | 1,195 |
Total |  | $ | 4,510 |  |  | $ | 4,093 |
|  | Three Months Ended March 31 |
Purchase of materials |  | 2021 |  |  | 2020 |
Ninebell |  | $ | 6,882 |  |  | $ | 2,153 |
Shengyi |  |  | 358 |  |  |  | 58 |
Total |  | $ | 7,240 |  |  | $ | 2,211 |
|  | Three Months Ended March 31 |
Service fee charged by |  | 2021 |  |  | 2020 |
Shengyi |  | $ | 142 |  |  | $ | 46 |
Ninebell |  |  | - |  |  |  | - |
Total |  | $ | 142 |  |  | $ | 46 |

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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