Quarterly report pursuant to Section 13 or 15(d)

3. INVENTORIES (Details)

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3. INVENTORIES (Details) - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Raw materials $ 23,471,487 $ 14,019,668
Work-in-process 13,955,875 0
Finished goods 2,857,977 4,596,501
Total inventories $ 40,285,339 $ 18,616,169