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Prepayments and other current assets | 3 Months Ended
--- | ---
Mar. 31, 2021
Prepaid Expenses And Other Current Assets Disclosure [Abstract] |
Prepayments and other current assets | (5) Prepayments and other current assets Prepayments and other current assets consisted of the following as of March 31, 2021 and December 31, 2020:
|  | March 31, |  |  | December 31, |
|  | 2021 |  |  | 2020 |
Prepaid land lease |  | $ | 182,613 |  |  | $ | 183,912 |
Prepayment for purchase of materials |  |  | 4,003,350 |  |  |  | 10,945 |
Value-added tax recoverable |  |  | 6,067,438 |  |  |  | 5,864,989 |
Others |  |  | 402,138 |  |  |  | 991,669 |
|  | $ | 10,655,539 |  |  | $ | 7,051,515 |

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- Definition The disclosure describes the Company's prepaid and other current assets. + References No definition available. + Details
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