Annual report pursuant to Section 13 and 15(d)

Inventory (Details)

v3.21.1
Inventory (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Inventory    
Raw materials $ 169,803 $ 223,790
Work in process 0 43,814
Spare parts 23,432 27,632
Finished goods 366,892 218,262
Inventory $ 560,127 $ 513,498