Inventories

3 Months Ended

Jun. 30, 2022

Inventory Disclosure [Abstract]

Inventories

4. Inventories:

	June 30, 2022	March 31, 2022
Raw materials	$6,231,095	$7,920,190
Work in progress	—	1,016,916
Finished goods	7,825,419	7,974,690
Supplies and spare parts	—	147,610
	$14,056,514	$17,059,406

During the three-month periods ended June 30, 2022 and 2021, inventories have been reduced by $3,079,997 and nil respectively. The write-down of inventories during the quarter ended June 30, 2022 is related to assets held for sale inventories that are not expected to be realized.