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PREPAYMENTS, NET (Details 1) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Notes to Financial Statements    
Beginning balance $ 188,264 $ 127,740
Addition 22,626 66,045
Exchange rate effect (63,260) (2,521)
Ending balance $ 147,630 $ 188,264