Annual report pursuant to Section 13 and 15(d)

4. INVENTORIES (Tables)

v3.20.1
4. INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2019
Inventory Disclosure [Abstract]  
Schedule of inventory
    December 31, 2019   December 31, 2018
         
Raw materials   $ 33,381,806     $ 14,019,668  
Work-in-process     14,455,665       —    
Finished goods     5,227,263       4,596,501  
Total inventories   $ 53,064,734     $ 18,616,169