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COMMITMENTS AND CONTINGENCIES: (Tables)

6 Months Ended

Jun. 30, 2014

COMMITMENTS AND CONTINGENCIES:

Schedule of environmental capital expenditures

Environmental capital expenditures in the six months ended June 30, 2014 and 2013 were as follows (in millions):

		2014			2013
Peruvian operations		$	57.6		$	32.4
Mexican operations		7.7			21.2
		$	65.3		$	53.6

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Tabular disclosure of environmental capital expenditures incurred during the period.

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