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INVENTORIES : (Tables)
3 Months Ended
Mar. 31, 2016
INVENTORIES:  
Schedule of inventories

 

`

(in millions)

 

At March 31,
2016

 

At December 31,
2015

 

 

 

 

 

 

 

Inventory, current:

 

 

 

 

 

Metals at average cost:

 

 

 

 

 

Finished goods

 

$

145.2 

 

$

104.1 

 

Work-in-process

 

178.5 

 

188.6 

 

Ore stockpiles on leach pads

 

271.1 

 

243.2 

 

Supplies at average cost:

 

336.5 

 

321.3 

 

 

 

 

 

 

 

Total current inventory

 

$

931.3 

 

$

857.2 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Inventory, non-current:

 

 

 

 

 

Ore stockpiles on leach pads

 

$

770.0 

 

$

752.3