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Inventories | 12 Months Ended
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Dec. 31, 2021
Inventories |
Inventories | 3. Inventories At December 31, 2021 and 2020, inventories consisted of the following:
|  | 2021 |  |  | 2020 |
Concentrate inventory |  |  |  |  |  |
In process |  | $ | 41,082 |  |  | $ | 90,743 |
Finished goods |  |  | 97,074 |  |  |  | 230,318 |
Total concentrate inventory |  |  | 138,156 |  |  |  | 321,061 |
Supplies inventory |  |  |  |  |  |  |  |
Mine parts and supplies |  |  | 54,998 |  |  |  | 52,600 |
Mill parts and supplies |  |  | 20,568 |  |  |  | 28,876 |
Total supplies inventory |  |  | 75,566 |  |  |  | 81,476 |
Total |  | $ | 213,722 |  |  | $ | 402,537 |

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