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INVENTORIES:
9 Months Ended
Sep. 30, 2019
INVENTORIES:  
INVENTORIES:

NOTE 4 — INVENTORIES:

Inventories were as follows:

At September 30, 

At December 31, 

(in millions)

    

2019

    

2018

Inventory, current:

Metals at average cost:

Finished goods

$

60.0

$

69.6

Work-in-process

 

276.4

 

256.8

Ore stockpiles on leach pads  

356.5

328.0

Supplies at average cost

 

369.3

 

378.3

Total current inventory

$

1,062.2

$

1,032.7

Inventory, long-term:

Ore stockpiles on leach pads

$

1,224.9

$

1,177.4

During the nine months ended September 30, 2019 and 2018, total leaching costs capitalized as non-current inventory of ore stockpiles on leach pads amounted to $362.0 million and $393.6 million, respectively. Leaching inventories recognized in cost of sales amounted to $286.1 million and $240.0 million for the nine months September 30, 2019 and 2018, respectively.