REVENUE: (Tables)

6 Months Ended

Jun. 30, 2025

REVENUE:

Summary of company's sales by geographic wise and segment wise

The geographic breakdown of the Company’s sales is attributed to countries based on location of customer, and is summarized as follows (in millions):

	Three Months Ended June 30, 2025
			Mexican
	Mexican		IMMSA		Peruvian		Segment		Corporate &
	Open-Pit		Unit		Operations		Total		Elimination		Consolidated
The Americas:
Mexico	$	714.7	$	151.1	$	—	$	865.7	$	(61.0)	$	804.7
United States		277.6		0.2		78.2		356.0		—		356.0
Peru		—		(0.2)		213.4		213.2		(0.2)		212.9
Brazil		—		8.3		153.9		162.1		—		162.1
Chile		—		—		132.1		132.1		—		132.1
Other American countries		10.8		—		8.0		18.8		—		18.8
Europe:
Switzerland		221.6		15.1		187.5		424.2		—		424.2
Italy		—		3.8		109.0		112.8		—		112.8
Spain		136.6		—		26.5		163.1		—		163.1
Other European countries		0.7		1.1		79.9		81.7		—		81.7
Asia:
China		225.2		—		7.6		232.8		—		232.8
Singapore		22.5		—		25.7		48.2		—		48.2
Japan		125.5		—		146.4		272.0		—		272.0
Other Asian countries		19.5		—		10.1		29.6		—		29.6
Total	$	1,754.8	$	179.3	$	1,178.2	$	3,112.3	$	(61.3)	$	3,051.0

	Three Months Ended June 30, 2024
			Mexican
	Mexican		IMMSA		Peruvian		Segment		Corporate &
	Open-Pit		Unit		Operations		Total		Elimination		Consolidated
The Americas:
Mexico	$	654.7	$	121.0	$	9.3	$	785.1	$	(41.3)	$	743.8
United States		325.4		0.3		63.5		389.2		—		389.2
Peru		—		10.6		168.2		178.7		(10.8)		167.9
Brazil		—		13.1		127.9		141.0		—		141.0
Chile		—		—		131.9		131.9		—		131.9
Other American countries		13.5		—		7.2		20.7		—		20.7
Europe:
Switzerland		152.3		25.4		196.9		374.6		—		374.6
Italy		—		6.4		108.4		114.8		—		114.8
Spain		131.3		—		25.8		157.1		—		157.1
Other European countries		29.0		4.0		132.5		165.6		—		165.6
Asia:
China		334.7		2.4		60.2		397.3		—		397.3
Singapore		45.7		2.0		28.6		76.3		—		76.3
Japan		27.2		—		155.3		182.5		—		182.5
Other Asian countries		24.7		—		30.9		55.6		—		55.6
Total	$	1,738.5	$	185.2	$	1,246.7	$	3,170.5	$	(52.1)	$	3,118.3

(*) Less than $0.1 million.

	Six Months Ended June 30, 2025
			Mexican
	Mexican		IMMSA		Peruvian		Segment		Corporate &
	Open-Pit		Unit		Operations		Total		Elimination		Consolidated
The Americas:
Mexico	$	1,439.9	$	287.0	$	0.2	$	1,727.1	$	(109.3)	$	1,617.8
United States		563.6		0.2		201.3		765.1		—		765.1
Peru		—		1.0		437.8		438.7		(0.9)		437.8
Brazil		—		15.5		283.9		299.5		—		299.5
Chile		—		—		241.7		241.7		—		241.7
Other American countries		22.4		—		10.0		32.4		—		32.4
Europe:
Switzerland		441.3		20.7		355.9		817.9		—		817.9
Italy		—		9.1		209.1		218.2		—		218.2
Spain		245.3		—		77.5		322.8		—		322.8
Other European countries		3.7		1.2		266.7		271.7		—		271.7
Asia:
China		504.9		—		11.5		516.4		—		516.4
Singapore		41.7		—		49.5		91.2		—		91.2
Japan		207.2		—		280.3		487.5		—		487.5
Other Asian countries		34.2		—		19.0		53.1		—		53.1
Total	$	3,504.2	$	334.7	$	2,444.2	$	6,283.1	$	(110.2)	$	6,172.9

	Six Months Ended June 30, 2024
			Mexican
	Mexican		IMMSA		Peruvian		Segment		Corporate &
	Open-Pit		Unit		Operations		Total		Elimination		Consolidated
The Americas:
Mexico	$	1,246.0	$	227.2	$	17.2	$	1,490.4	$	(74.3)	$	1,416.1
United States		597.6		2.0		102.2		701.8		—		701.8
Peru		—		19.0		334.1		353.1		(19.1)		334.0
Brazil		—		22.0		243.9		265.9		—		265.9
Chile		—		—		226.4		226.4		—		226.4
Other American countries		20.7		—		11.3		32.0		—		32.0
Europe:
Switzerland		314.1		40.7		248.9		603.6		—		603.6
Italy		(*)		12.5		183.7		196.1		—		196.1
Spain		241.6		—		45.7		287.2		—		287.2
Other European countries		87.6		5.4		239.4		332.4		—		332.4
Asia:
China		510.3		3.5		169.9		683.7				683.7
Singapore		63.3		(0.6)		70.9		133.6		—		133.6
Japan		81.3		—		346.2		427.5		—		427.5
Other Asian countries		42.0		—		35.6		77.7		—		77.7
Total	$	3,204.4	$	331.6	$	2,275.4	$	5,811.4	$	(93.4)	$	5,718.1

The following table presents information regarding the sales value by reporting segment of the Company’s significant products for the three and six-month periods ended June 30, 2025 and 2024 (in millions):

	Three Months Ended June 30, 2025
			Mexican
	Mexican		IMMSA		Peruvian		Segment		Corporate, Other &		Total
	Open-pit		Unit		Operations		Total		Eliminations		Consolidated
Copper	$	1,319.0	$	36.3	$	925.7	$	2,281.0	$	(21.5)	$	2,259.5
Molybdenum		192.2		—		162.4		354.7		—		354.7
Silver		115.6		60.6		50.6		226.8		(24.9)		201.9
Zinc		74.5		62.3		—		136.8		(13.7)		123.1
Other		53.4		20.1		39.5		113.0		(1.1)		111.9
Total	$	1,754.8	$	179.3	$	1,178.2	$	3,112.3	$	(61.3)	$	3,051.0

	Three Months Ended June 30, 2024
			Mexican
	Mexican		IMMSA		Peruvian		Segment		Corporate, Other &		Total
	Open-pit		Unit		Operations		Total		Eliminations		Consolidated
Copper	$	1,347.1	$	41.8	$	1,001.7	$	2,390.6	$	(24.0)	$	2,366.6
Molybdenum		213.3		—		166.0		379.2		—		379.2
Silver		91.5		52.1		39.9		183.6		(26.3)		157.2
Zinc		44.8		70.1		—		115.0		(0.1)		114.9
Other		41.8		21.1		39.2		102.1		(1.8)		100.3
Total	$	1,738.5	$	185.2	$	1,246.7	$	3,170.5	$	(52.1)	$	3,118.3

	Six Months Ended June 30, 2025
			Mexican
	Mexican		IMMSA		Peruvian		Segment		Corporate, Other &		Total
	Open-pit		Unit		Operations		Total		Eliminations		Consolidated
Copper	$	2,698.3	$	57.6	$	1,975.2	$	4,731.2	$	(39.7)	$	4,691.5
Molybdenum		356.6		—		298.6		655.2		—		655.2
Silver		215.9		110.1		100.0		426.0		(47.6)		378.5
Zinc		126.0		129.7		—		255.7		(21.2)		234.5
Other		107.4		37.3		70.4		215.1		(1.8)		213.3
Total	$	3,504.2	$	334.7	$	2,444.2	$	6,283.1	$	(110.2)	$	6,172.9

	Six Months Ended June 30, 2024
			Mexican
	Mexican		IMMSA		Peruvian		Segment		Corporate, Other &		Total
	Open-pit		Unit		Operations		Total		Eliminations		Consolidated
Copper	$	2,553.3	$	69.3	$	1,830.7	$	4,453.3	$	(42.9)	$	4,410.4
Molybdenum		357.8		—		295.0		652.8		—		652.8
Silver		158.1		87.6		71.0		316.8		(48.0)		268.7
Zinc		49.1		135.4		—		184.5		0.6		185.0
Other		86.1		39.4		78.8		204.2		(3.0)		201.2
Total	$	3,204.4	$	331.6	$	2,275.4	$	5,811.4	$	(93.4)	$	5,718.1

Schedule of opening and closing balances of receivables by reporting segment

The opening and closing balances of receivables by reporting segment of the Company were as follows (in millions):

			Mexican
	Mexican		IMMSA		Peruvian		Segment		Corporate &
	Open-Pit		Unit		Operations		Total		Elimination		Consolidated
As of June 30, 2025:
Trade receivables	$	889.3	$	65.8	$	602.6	$	1,557.7	$	—	$	1,557.7
Related parties, current		29.1		16.8		0.6		46.5		(31.7)		14.8
As of December 31, 2024:
Trade receivables	$	623.0	$	59.7	$	506.9	$	1,189.6	$	—	$	1,189.6
Related parties, current		39.7		25.1		1.3		66.2		(52.7)		13.5

Schedule long term contracts by products

As of June 30, 2025, the Company has long-term contracts with promises to deliver the following products in 2025:

Copper concentrates (in tonnes)	215,000
Copper cathodes (in tonnes)	48,000
Molybdenum concentrates (in tonnes)	21,824
Sulfuric acid (in tonnes)	373,296

Schedule of provisionally priced copper and molybdenum sales outstanding

The following are the provisionally priced copper and molybdenum sales outstanding as of June 30, 2025:

	Sales volume	Priced at
	(million lbs.)	(per pound)	Month of settlement
Copper	233.7	4.49	July 2025 through November 2025
Molybdenum	16.1	21.85	July 2025 through September 2025