COMMITMENTS AND CONTINGENCIES: (Tables)

9 Months Ended

Sep. 30, 2013

COMMITMENTS AND CONTINGENCIES:

Schedule of environmental capital expenditures

Environmental capital expenditures in the nine months ended September 30, 2013 and 2012 were as follows (in millions):

	2013		2012
Peruvian operations	$	2.9	$	3.0
Mexican operations	30.3		13.8
	$	33.2	$	16.8