RELATED PARTY TRANSACTIONS: (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of receivable and payable balances with related parties

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

	At March 31, 2018		At December 31, 2017
Related parties receivable current:
Grupo Mexico and affiliates:
Mexico Generadora de Energia, S. de R.L. (“MGE”)	$	31.3	$	16.2
Asarco LLC	29.3		4.1
Grupo Mexico	2.8		2.8
Compañia Perforadora Mexico, S.A.P.I. de C.V. and affiliates	1.4		1.4
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates	0.7		1.1

Related to the controlling group:
Mexico Transportes Aereos, S.A. de C.V. (“Mextransport”)	0.1
Operadora de Cinemas, S.A. de C.V.	0.3		0.3
Boutique Bowling de Mexico, S.A. de C.V.	0.2		0.2

	$	66.1	$	26.1

	At March 31, 2018		At December 31, 2017
Related parties payable:
Grupo Mexico and affiliates:
MGE	$	28.7	$	38.5
Asarco LLC	14.8		24.2
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates	7.7		21.7
Ferrocarril Mexicano, S.A. de C.V.	3.2		2.6
Eolica el Retiro	0.6		0.8
Grupo Mexico	3.6		0.7
Related to the controlling group:
Operadora de Cinemas, S.A. de C.V.	0.1		0.7
Boutique Bowling de Mexico, S.A. de C.V.	0.1		0.6
Mextransport	0.1		0.3

	$	58.9	$	90.1

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 three months ended March 31, 2018 and 2017 (in millions):

	2018		2017
Purchase activity
Asarco LLC	$	6.8	$	13.0
Eolica el Retiro	0.6		0.9
Ferrocarril Mexicano, S.A de C.V.	10.0		10.8
Grupo Mexico	4.5		3.5
MGE	61.9		61.1
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates	15.9		27.1

Total purchases	$	99.7	$	116.4

Sales activity
Asarco LLC	$	36.5	$	41.8
Compania Perforadora Mexico, S.A.P.I. de C.V and affiliates	—		0.2
Grupo Mexico	—		0.2
MGE	23.2		24.4

Total sales	$	59.7	$	66.6

Related 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 three months ended March 31, 2018 and 2017 (in millions):

	2018			2017
Purchase activity
Boutique Bowling de Mexico, S.A. de C.V.	$	0.1		$	—
Operadora de Cinemas, S.A. de C.V.	(*		)	—
Mextransport	0.2			—

Total purchases	$	0.3		$	—

Sales activity
Boutique Bowling de Mexico, S.A. de C.V.	$	0.1		$	0.1
Operadora de Cinemas, S.A. de C.V.	(*		)	(*		)
Mextransport	0.1			—

Total sales	$	0.2		$	0.1

(*) amount is lower than $0.1 million