COMMITMENTS AND CONTINGENCIES: (Tables)

3 Months Ended

Mar. 31, 2014

COMMITMENTS AND CONTINGENCIES:

Schedule of environmental capital expenditures

Environmental capital expenditures in the three months ended March 31, 2014 and 2013 were as follows (in millions):

	2014		2013
Peruvian operations	$	9.8	$	1.8
Mexican operations	6.4		10.5
	$	16.2	$	12.3