INVENTORIES:

12 Months Ended

Dec. 31, 2021

INVENTORIES:

INVENTORIES:

NOTE 4—INVENTORIES:

	At December 31,
(in millions)	2021		2020
Inventory, current:
Metals at average cost:
Finished goods	$	58.6	$	50.8
Work-in-process		340.7		248.9
Ore stockpiles on leach pads		259.7		298.5
Supplies at average cost		313.9		352.0
Total current inventory	$	972.9	$	950.2
Inventory, long-term:
Ore stockpiles on leach pads	$	1,097.6	$	1,125.0

Total leaching costs added as long-term inventory of ore stockpiles in leach pads amounted to $247.4 million, $194.0 million and $469.0 million in 2021, 2020 and 2019, respectively. Long-term leaching inventories recognized as cost of sales amounted to $313.7 million, $359.1 million and $385.8 million in 2021, 2020 and 2019, respectively.