Inventories

12 Months Ended

Dec. 31, 2021

Inventories

5. Inventories

4. Inventories

The major components of the Company’s inventories at December 31, 2021 and 2020 were as follows:

	2021		2020
Antimony Oxide	$	234,461	$	67,377
Antimony Metal		439,086		268,100
Antimony Ore		119,046		95,880
Total antimony		792,593		431,357
Zeolite		262,827		218,856
Total inventory	$	1,055,420	$	650,213

At December 31, 2021 and 2020, antimony metal consisted principally of recast metal from antimony-based compounds, and metal purchased from foreign suppliers. Antimony oxide inventory consisted of finished product oxide held at the Company’s plant. Antimony concentrates and ore were held primarily at sites in Mexico and are essentially raw material. At December 31, 2020, the antimony oxide and ore inventory in Mexico was valued at estimated net realizable value resulting in write-downs of $13,137.