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15. CUSTOMER CONCENTRATION
9 Months Ended
Sep. 30, 2017
Risks and Uncertainties [Abstract]  
15. CUSTOMER CONCENTRATION

The Company sells a substantial portion of its products to a limited number of customers. During the three-month and nine-month periods ended September 30, 2017, the Company sold 36.0% and 35.2% of its products to its top five customers, respectively. As of September 30, 2017, amounts due from these customers were $39,124,728. During the three-month and nine-month periods ended September 30, 2016, the Company sold 34.6% and 34.3% of its products to its top five customers, respectively. As of September 30, 2016, amounts due from these customers were $31,621,828. This concentration makes the Company vulnerable to a near-term severe impact, should the relationships be terminated.