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17. MAJOR SUPPLIERS
3 Months Ended
Mar. 31, 2016
Notes to Financial Statements  
17. MAJOR SUPPLIERS

During the three-month period ended March 31, 2016 and 2015, the Company purchased 55.2% and 57.0% of its raw materials from its top five suppliers, respectively.  As of March 31, 2016 and 2015, amounts due to those suppliers included in accounts payable were $5,328,377 and $5,698,079, respectively. This concentration makes the Company vulnerable to a near-term severe impact, should the relationships be terminated.