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Prepayments and Other Current Assets
 9 Months Ended
Sep. 30, 2019
Deferred Costs, Capitalized, Prepaid, and Other 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 September 30, 2019 and December 31, 2018: 

 

   September 30,   December 31, 
   2019   2018 
Prepaid land lease  $4,242   $437,114 
Prepayment for purchase of materials   51,719    - 
Value-added tax recoverable   5,589,497    5,760,280 
Others   337,272    43,905 
   $5,982,730   $6,241,299