COMMITMENTS AND CONTINGENCIES: (Tables)

6 Months Ended

Jun. 30, 2025

COMMITMENTS AND CONTINGENCIES:

Schedule of environmental capital investments

Environmental capital investments in the six-month periods ended June 30, 2025 and 2024 were as follows (in millions):

	2025		2024
Peruvian operations	$	6.9	$	2.0
Mexican operations		84.2		92.8
	$	91.1	$	94.8