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Cost of Sales
12 Months Ended
Dec. 31, 2021
Cost of Sales [abstract]  
Cost of Sales

22.   COST OF SALES

Years ended December 31,

2021

2020

Direct mining costs

$

198,141

$

94,609

Salaries and benefits

34,773

16,586

Workers' participation

7,647

7,459

Depletion and depreciation

121,077

43,778

Royalties and other taxes

25,703

6,318

Impairment (recovery) of inventories

7,035

(5)

Cost of Sales

$

394,376

$

168,745

For the year ended December 31, 2021, depletion and depreciation includes $6.3 million (December 31, 2020 - $2.5 million) of depreciation relating to right-of-use assets.