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7. ACCOUNTS PAYABLE AND ACCRUED EXPENSE
12 Months Ended
Dec. 31, 2016
Payables and Accruals [Abstract]  
7. ACCOUNTS PAYABLE AND ACCRUED EXPENSE

Accounts payable and accrued expenses consist of the following:

 

    As of December 31,  
    2016     2015  
             
Accounts payable   $ 7,513,075     $ 8,835,442  
Salary payable     319,489       271,369  
Social security insurance contribution payable     119,444       114,370  
Other payables     730,310       708,519  
Total   $ 8,682,318     $ 9,929,700