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15. MAJOR SUPPLIERS
6 Months Ended
Jun. 30, 2017
Notes to Financial Statements  
15. MAJOR SUPPLIERS

During the three-month and six-month periods ended June 30, 2017, the Company purchased 66.5% and 67.5% of its raw materials from its top five suppliers, respectively.  As of June 30, 2017, amounts due to those suppliers for the three-month and six-month periods ended June 30, 2017 included in accounts payable were $8,048,563 and $6,833,430. During the three-month and six-month periods ended June 30, 2016, the Company purchased 54.5% and 54.8% of its raw materials from its top five suppliers, respectively.  As of June 30, 2016, amounts due to those suppliers included in accounts payable were $6,542,424.This concentration makes the Company vulnerable to a near-term severe impact, should the relationships be terminated.