RELATED PARTY TRANSACTIONS: (Tables)

6 Months Ended

Jun. 30, 2014

Receivable and payable balances with related parties

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

	As of
	June 30, 2014		December 31, 2013
Related parties receivable current:
Grupo Mexico and affiliates	$	0.9	$	0.8
Mexico Generadora de Energia S. de R.L. (“MGE”)	—		18.8
Compania Perforadora Mexico, S.A.P.I. de C.V. and affiliates	1.0		0.7
Compania Minera Coimolache S.A.	5.6		17.2
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates	3.3		0.6
	$	10.8	$	38.1

Related parties receivable non-current:
MGE	$	161.2	$	161.2

Related parties payable:
Grupo Mexico and affiliates	$	6.1	$	3.3
MGE	9.9		14.4
Asarco LLC	6.1		6.2
Higher Technology S.A.C.	0.1		0.1
Breaker S.A. de C.V and affiliates (“Breaker”)	1.1		0.3
Sempertrans and affiliates	0.1		0.1
Mexico Transportes Aereos, S.A. de C.V. (“Mextransport”)	0.3		0.6
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates	0.1		—
Ferrocarril Mexicano, S.A. de C.V.	1.2		3.3
	$	25.0	$	28.3

Grupo Mexico, S.A.B de C.V. ( Grupo Mexico ) and affiliates

Related party transactions

Purchase and sales activities with related parties

The following table summarizes the purchase and sale activities with Grupo Mexico and its affiliates in the six months ended June 30, 2014 and 2013 (in millions):

	As of June 30,
	2014		2013
Purchases activity
Grupo Mexico and affiliates	$	6.9	$	6.9
Asarco LLC.	24.6		70.7
Ferrocarril Mexicano S.A de C.V.	11.6		11.1
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates	55.9		26.6
MGE	91.7		—
Cia Perforadora Mexico S.A.P.I. de C.V and affiliates	1.9		2.6
Total purchases	$	192.6	$	117.9

Sales activity
Asarco LLC	$	21.7	$	71.8
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates	0.4		0.4
Cia Perforadora Mexico S.A.P.I. de C.V and affiliates	0.3		0.3
MGE	48.8		0.7
Total sales	$	71.2	$	73.2

Companies with relationship with the controlling group

Related party transactions

Purchase and sales activities with related parties

The following tables summarize the purchase and sales activities with other Larrea family companies in the six months ended June 30, 2014 and 2013 (in millions):

	As of June 30,
	2014		2013
Mextransport:
Purchase activity	$	1.1	$	1.5

Sales activity	$	0.1	$	0.2

Companies with relationship with SCC executive officers' families

Related party transactions

Purchase activities with related parties

The following table summarizes the purchase activities with companies with relationships with SCC executive officers in the six months ended June 30, 2014 and 2013 (in millions):

	As of June 30,
	2014		2013
Higher Technology S.A.C.	$	0.8	$	1.0
Servicios y Fabricaciones Mecanicas S.A.C.	0.7		0.1
Sempertrans and affiliates	0.8		0.5
Breaker	3.6		2.0
Pigoba S.A. de C.V.	0.1		0.1
Total purchases	$	6.0	$	3.7

Equity investment in affiliate

Related party transactions

Schedule of conditions and balance of the loan granted to related party

Conditions and balance of the loan as of June 30, 2014 are as follows ($ in millions):

		Loan
Total loan granted		$56.6
Interest rate		6 months Libor + 3% (approximately 3.35%)
Remaining balance at June 30, 2014		$5.6

Interest:

	Three months ended				Six months ended
	June 30,				June 30,
	2014		2013		2014		2013
Interest earned	$	0.1	$	0.2	$	0.2	$	0.6