RELATED PARTY TRANSACTIONS: (Tables)

3 Months Ended

Mar. 31, 2017

Schedule of receivable and payable balances with related parties

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

Related parties receivable current:	At March 31, 2017		At December 31, 2016
Asarco LLC	$	22.2	$	5.5
Boutique Bowling de Mexico S.A. de C.V.	0.1		0.1
Compania Perforadora Mexico S.A.P.I. de C.V. and affiliates	1.4		1.3
Grupo Mexico	4.7		4.5
Mexico Generadora de Energia S. de R.L. (“MGE”)	17.0		10.2
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates	1.1		1.5
Operadora de Cinemas S.A. de C.V.	0.2		0.2
Operadora de Generadoras de Energia Mexico S.A. de C.V.	0.1		0.1

	$	46.8	$	23.4

Related parties payable:	At March 31, 2017		At December 31, 2016
Asarco LLC	$	40.6	$	36.3
Boutique Bowling de Mexico S.A. de C.V.	0.2		0.2
Eolica El Retiro, S.A.P.I. de C.V.	0.5		0.1
Ferrocarril Mexicano S.A. de C.V.	4.1		3.0
Grupo Mexico	1.4		0.1
MGE	23.0		13.9
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates	7.1		7.8
Mexico Transportes Aereos S.A. de C.V. (“Mextransport”)	—		0.1
Operadora de Cinemas S.A. de C.V.	0.4		0.4
Servicios y Fabricaciones Mecanicas	0.2		—
Breaker S.A. de C.V. and affiliates (“Breaker”)	—		0.3

	$	77.5	$	62.2

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, 2017 and 2016 (in millions):

	2017		2016
Purchase activity
Asarco LLC	$	13.0	$	6.2
Eolica El Retiro, S.A.P.I. de C.V.	0.9		0.5
Ferrocarril Mexicano S.A de C.V.	10.8		9.7
Grupo Mexico	3.5		8.6
MGE	61.1		56.7
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates	27.1		8.4

Total purchases	$	116.4	$	90.1


Sales activity
Asarco LLC	$	41.8	$	19.5
Compania Perforadora Mexico S.A.P.I. de C.V and affiliates	0.2		0.1
Grupo Mexico	0.2		0.1
MGE	24.4		33.0

Total sales	$	66.6	$	52.7

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 three months ended March 31, 2017 and 2016 (in millions):

	2017			2016
Purchase activity
Boutique Bowling de Mexico S.A. de C.V.	$	—		$	0.2
Operadora de Cinemas S.A. de C.V.	—			0.3

Total purchases	$	—		$	0.5


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

Total sales	$	0.1		$	—

(*) amount is lower than $0.1 million

Companies with relationship to SCC executive officers

RELATED PARTY TRANSACTIONS:

Schedule of purchase activity with related parties

The following table summarizes the purchase activities with companies with relationships to SCC executive officers in the three months ended March 31, 2017 and 2016 (in millions):

Purchase activity	2017		2016
Breaker	$	—	$	0.4
Higher Technology S.A.C.	—		0.2
Pigoba, S.A. de C.V.	—		0.1
Servicios y Fabricaciones Mecanicas S.A.C.	0.2		0.2

Total purchases	$	0.2	$	0.9