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Other Payables
 12 Months Ended
Dec. 31, 2017
Other Liabilities Current [Abstract]  
Other Payables

7.

Other payables

 

 

 

As of December 31,

 

 

 

2016

 

 

2017

 

 

 

$

 

 

$

 

Payroll

 

 

573,802

 

 

 

1,607,740

 

Professional service fee

 

 

23,721

 

 

 

714,764

 

Payables for purchase of property and equipment

 

 

—

 

 

 

413,657

 

Other taxes payable

 

 

—

 

 

 

17,793

 

Others

 

 

152,595

 

 

 

347,505

 

 

 

 

750,118

 

 

 

3,101,459