COMMITMENTS AND CONTINGENCIES: (Tables)

6 Months Ended

Jun. 30, 2020

COMMITMENTS AND CONTINGENCIES:

Schedule of environmental capital investments

Environmental capital investments in the six months ended June 30, 2020 and 2019 were as follows (in millions):

	2020		2019
Peruvian operations	$	(5.5)	$	13.9
Mexican operations		19.4		18.4
	$	13.9	$	32.3

(*) The activity, in the first six months of 2020, for the Peruvian operations include prepayment settlements.