Inventories

12 Months Ended

Dec. 31, 2020

Subclassifications of assets, liabilities and equities [abstract]

11. INVENTORIES

Inventories consist of:


	December 31, 2020		December 31, 2019
Concentrate inventory	$	19,104	$	17,433
Stockpile ore (1)	30,063		27,708
Heap leach inventory and in process (2)	219,334		169,751
Doré and finished inventory (3)	77,489		67,820
Materials and supplies	84,556		88,004
Total inventories	$	430,546	$	370,716
Less: current portion of inventories	$	(406,191)	$	(346,507)
Non-current portion of inventories (4)	$	24,355	$	24,209

(1)Includes an impairment charge of $2.0 million to reduce the cost basis of inventory to NRV at Manantial Espejo mine (2019 – $5.0 million at Manantial Espejo and Dolores mines).

(2)Includes an impairment charge of $26.2 million to reduce the cost basis of inventory to NRV at Manantial Espejo and Dolores mines (2019 - $39.3 million at Manantial Espejo and Dolores mines).

(3)Includes an impairment charge of $2.9 million to reduce the cost basis of inventory to NRV at Dolores mine at December 31, 2020. (2019 - $2.9 million at Manantial Espejo and Dolores mines).

(4)Inventories at Escobal mine, which include $17.1 million (2019 - $16.9 million) in supplies with the remainder attributable to metals, have been classified as non-current pending the restart of operations.

The costs of inventories recognized as expense for the year ended December 31, 2020 amounted to $978.6 million (2019 – $1.1 billion), of which $696.7 million (2019 – $841.3 million) and $254.5 million (2019 – $253.5 million) were included in production costs and depreciation and depletion in the Consolidated Income Statements, respectively.

During the year ended December 31, 2020 a $16.2 million NRV recovery (2019 - $0.4 million NRV recovery) was recognized, primarily driven by increased expected precious metal prices, and included in production costs (Note 22). Inventories held at NRV amounted to $215.5 million (2019 - $151.5 million). A portion of the stockpile ore amounting to $2.7 million (2019 - $1.2 million) and a portion of the heap leach inventory amounting to $147.0 million (2019 - $74.5 million) are expected to be recovered or settled after more than twelve months.