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INVENTORIES | 12 Months Ended
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Dec. 31, 2020
Classes of current inventories [abstract] |
INVENTORIES [Text Block] | 12. INVENTORIES
|  | As at December 31, |
|  | 2020 |  |  | 2019 |
Ore stockpiles |  | 21,946 |  |  | 6,657 |
Copper contained in concentrate |  | 7,948 |  |  | 9,055 |
Molybdenum concentrate |  | 398 |  |  | 230 |
Materials and supplies |  | 28,549 |  |  | 27,678 |
|  | 58,841 |  |  | 43,620 |
During the year ended December 31, 2020, the Company recorded an impairment of $5,353 (2019: $5,830) to adjust the carrying value of ore stockpiles to net realizable value, of which $2,216 (2019: $2,398) is recorded in depletion and amortization and the balance in production costs.

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- Definition The entire disclosure for inventories. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2019-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=2&code=ifrs-tx-2019-en-r&doctype=Standard&dita_xref=IAS02_g36-39_TI -URIDate 2019-03-27 + Details
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