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Prepayments and Other Receivables
 9 Months Ended
Sep. 30, 2017
Prepayments and Other Receivables [Text Block]
5.

Prepayments and Other Receivables

Prepayments and other receivables as of December 31, 2016 and September 30, 2017 consisted of the following:

 

 

   December 31,     September 30,  
 

 

   2016     2017  
 

Value added tax recoverable

 $ 6,238,056   $ 6,390,365  
 

Prepayments to suppliers

   148,247     269,708  
 

Deposits

   28,763     77,019  
 

Staff advances

   46,572     121,195  
 

Prepaid operating expenses

   220,713     371,190  
 

Advances to unrelated parties

   -     343,132  
 

 

   6,682,351     7,572,609  
 

Less: Allowance for doubtful accounts

   (7,000 )   (7,000 )
 

 

 $ 6,675,351   $ 7,565,609  

Advances to unrelated parties were unsecured, non-interest bearing and repayable on demand.