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Prepayments and Other Current Assets
6 Months Ended
Jun. 30, 2018
Prepayments and Other Current Assets [Abstract]  
Prepayments and other current assets

(5) Prepayments and other current assets

 

Prepayments and other current assets consisted of the following as of June 30, 2018 and December 31, 2017: 

 

  June 30,  December 31, 
  2018  2017 
Prepaid land lease $190,430  $459,123 
Prepayment for purchase of materials  2,727,355   183,649 
Others  10,028   8,751 
  $2,927,813  $651,523