RELATED PARTY TRANSACTIONS: (Tables)

9 Months Ended

Sep. 30, 2024

RELATED PARTY TRANSACTIONS:

Schedule of receivable and payable balances with related parties

Receivable and payable balances with related parties are shown below (in millions):

	At September 30,		At December 31,
	2024		2023
Related parties receivable current:
Grupo Mexico and affiliates:
Asarco LLC	$	10.4	$	9.4
AMMINCO Apoyo Administrativo, S.A. de C.V. (“AMMINCO”)		(*)		(*)
Ferrocarril Mexicano, S.A. de C.V.		(*)		(*)
Mexico Generadora de Energia S. de R.L. ("MGE")		0.8		17.1
Mexico Compania Constructora S.A de C.V.		(*)		(*)
Related to the controlling group:
Empresarios Industriales de Mexico, S.A. de C.V.		0.8		0.6
Mexico Transportes Aereos, S.A. de C.V. ("Mextransport")		0.2		0.1
Operadora de Cinemas, S.A. de C.V.		0.1		0.1
	$	12.3	$	27.3
Related parties payable:
Grupo Mexico and affiliates:
AMMINCO	$	7.3	$	5.0
Asarco LLC		15.9		13.8
Eolica El Retiro, S.A.P.I. de C.V.		0.2		0.2
Parque Eolico de Fenicias, S. de R.L. de C.V.		5.3		—
Promotora Infraestructura Renovable Mex S.A. de C.V.		0.1		—
Ferrocarril Mexicano, S.A. de C.V.		5.4		7.9
Grupo Mexico Servicios, S.A. de C.V.		1.8		2.7
MGE		9.2		50.3
Mexico Compania Constructora S.A de C.V.		7.4		9.5
Grupo Mexico Servicios de Ingenieria, S.A. de C.V.		0.9		3.5
Related to the controlling group:
Boutique Bowling de Mexico, S.A. de C.V.		0.5		0.3
Mexico Transportes Aereos, S.A. de C.V. (“Mextransport”)		0.5		0.3
Operadora de Cinemas, S.A. de C.V.		0.3		0.1
	$	54.8	$	93.6

(*) Less than $0.1 million.

Grupo Mexico and affiliates

RELATED PARTY TRANSACTIONS:

Schedule of purchase and sales activities with related parties

The following table summarizes the purchase and sale activities with Grupo Mexico and its affiliates in the nine-month period ended September 30, 2024 and 2023 (in millions):

	2024		2023
Purchase activity
Asarco LLC	$	3.7	$	31.4
Eolica El Retiro, S.A.P.I. de C.V.		4.4		2.1
Parque Eolico de Fenicias, S. de R.L. de C.V.		4.6		—
Ferrocarril Mexicano, S.A. de C.V.		37.2		40.1
Grupo Mexico Servicios, S.A. de C.V.		15.1		15.1
AMMINCO		7.5		7.5
MGE		123.4		176.9
Mexico Compania Constructora S.A. de C.V.		58.0		37.4
Grupo Mexico Servicios de Ingenieria S. A. de C.V.		13.3		12.0
Total purchases	$	267.2	$	322.5
Sales activity
Asarco LLC	$	27.0	$	29.9
AMMINCO		0.1		(*)
Ferrocarril Mexicano, S.A. de C.V.		(*)		—
MGE		24.0		50.9
Total sales	$	51.1	$	80.8

(*) Less than $0.1 million.

Companies with relationship to the controlling group

RELATED PARTY TRANSACTIONS:

Schedule of purchase and sales activities with related parties

The following table summarizes the purchase and sales activities with other Larrea family companies in the nine-month period ended September 30, 2024 and 2023 (in millions):

	2024		2023
Purchase activity
Boutique Bowling de Mexico S.A. de C.V.	$	0.4	$	0.5
Mextransport		2.1		2.2
Operadora de Cinemas S.A. de C.V.		0.2		0.3
Total purchases	$	2.7	$	3.0
Sales activity
Boutique Bowling de Mexico S.A. de C.V.	$	0.1	$	0.1
Empresarios Industriales de Mexico, S.A. de C.V.		0.3		0.2
Mextransport		1.8		1.7
Operadora de Cinemas S.A. de C.V.		0.1		0.1
Total sales	$	2.3	$	2.1

(*) amount is lower than $0.1 million