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17. CUSTOMER CONCENTRATION
12 Months Ended
Dec. 31, 2015
Risks and Uncertainties [Abstract]  
17. CUSTOMER CONCENTRATION

The Company sells a substantial portion of its products to a limited number of customers. During the year ended December 31, 2015, the Company sold 31.7% of its products to its top five customers. At December 31, 2015, amount due from these customers were $21,872,942. During the year ended December 31, 2014, the Company sold 43.3% of its products to its top five customers. At December 31, 2014, amount due from these customers were $23,035,195.