SEGMENT AND RELATED INFORMATION: (Tables)

6 Months Ended

Jun. 30, 2013

SEGMENT AND RELATED INFORMATION:

Schedule of income and assets by segments

	Three Months Ended June 30, 2013
	(in millions)
	Mexican Open-pit		Mexican IMMSA Unit		Peruvian Operations		Corporate, other and eliminations			Consolidated
Net sales outside of segments	$	724.1	$	90.0	$	596.1	$	—		$	1,410.2
Intersegment sales	—		25.4		—		(25.4		)	—
Cost of sales (exclusive of depreciation, amortization and depletion)	336.7		88.5		318.8		(31.7		)	712.3
Selling, general and administrative	9.1		3.9		13.2		1.2			27.4
Depreciation, amortization and depletion	43.2		7.1		42.2		1.0			93.5
Exploration	0.8		6.6		4.3		—			11.7
Operating income	$	334.3	$	9.3	$	217.6	$	4.1		565.3
Less:
Interest, net										(46.5		)
Other income (expense)										17.0
Income taxes										(166.8		)
Equity earnings of affiliate										5.1
Non-controlling interest										(1.4		)
Net income attributable to SCC										$	372.7
Capital expenditure	$	295.4	$	13.5	$	63.9	$	12.7		$	385.5
Property, net	$	2,965.1	$	367.1	$	2,234.7	$	69.5		$	5,636.4
Total assets	$	4,928.4	$	865.7	$	3,411.0	$	1,449.2		$	10,654.3

	Three Months Ended June 30, 2012
	(in millions)
	Mexican Open-pit		Mexican IMMSA Unit		Peruvian Operations		Corporate, other and eliminations			Consolidated
Net sales outside of segments	$	819.8	$	94.1	$	746.0	—			$	1,659.9
Intersegment sales	—		37.9		—		$	(37.9	)	—
Cost of sales (exclusive of depreciation, amortization and depletion)	312.1		69.8		332.7		(46.7		)	667.9
Selling, general and administrative	8.4		3.6		12.1		1.3			25.4
Depreciation, amortization and depletion	35.7		6.3		39.0		(2.6		)	78.4
Exploration	2.5		6.7		3.4		—			12.6
Operating income	$	461.1	$	45.6	$	358.8	$	10.1		875.6
Less:
Interest, net										(40.6		)
Other income (expense)										18.3
Income taxes										(310.0		)
Equity earnings of affiliate										22.0
Non-controlling interest										(1.8		)
Net income attributable to SCC										$	563.5
Capital expenditure	$	268.2	$	13.7	$	60.2	$	(111.8	)	$	230.3
Property, net	$	2,049.5	$	334.4	$	2,118.8	$	163.5		$	4,666.2
Total assets	$	3,704.0	$	770.8	$	3,116.1	$	782.2		$	8,373.1

	Six Months Ended June 30, 2013
	(in millions)
	Mexican Open-pit		Mexican IMMSA Unit		Peruvian Operations		Corporate, other and eliminations			Consolidated
Net sales outside of segments	$	1,586.7	$	179.9	$	1,266.6	—			$	3,033.2
Intersegment sales	—		57.4		—		$	(57.4	)	—
Cost of sales (exclusive of depreciation, amortization and depletion)	717.4		161.6		635.7		(75.7		)	1,439.0
Selling, general and administrative	17.9		7.7		25.3		1.9			52.8
Depreciation, amortization and depletion	83.4		13.8		83.6		3.3			184.1
Exploration	1.7		12.7		7.6		—			22.0
Operating income	$	766.3	$	41.5	$	514.4	$	13.1		1,335.3
Less:
Interest, net										(93.5		)
Other income (expense)										17.8
Income taxes										(401.8		)
Equity earnings of affiliate										13.3
Non-controlling interest										(3.0		)
Net income attributable to SCC										$	868.1
Capital expenditure	$	546.0	$	31.4	$	103.2	$	21.7		$	702.3
Property, net	$	2,965.1	$	367.1	$	2,234.7	$	69.5		$	5,636.4
Total assets	$	4,928.4	$	865.7	$	3,411.0	$	1,449.2		$	10,654.3

	Six Months Ended June 30, 2012
	(in millions)
	Mexican Open-pit		Mexican IMMSA Unit		Peruvian Operations		Corporate, other and eliminations			Consolidated
Net sales outside of segments	$	1,698.6	$	194.7	$	1,572.5				$	3,465.8
Intersegment sales			75.8				$	(75.8	)	—
Cost of sales (exclusive of depreciation, amortization and depletion)	631.7		145.3		691.9		(79.1		)	1,389.8
Selling, general and administrative	17.1		7.2		24.6		1.9			50.8
Depreciation, amortization and depletion	69.3		12.6		78.0		(4.5		)	155.4
Exploration	3.2		12.9		5.2		—			21.3
Operating income	$	977.3	$	92.5	$	772.8	$	5.9		1,848.5
Less:
Interest, net										(81.2		)
Other income (expense)										25.6
Income taxes										(628.7		)
Equity earnings of affiliate										24.7
Non-controlling interest										(3.9		)
Net income attributable to SCC										$	1,185.0
Capital expenditure	$	403.3	$	28.1	$	88.1	$	(111.8	)	$	407.7
Property, net	$	2,049.5	$	334.4	$	2,118.8	$	163.5		$	4,666.2
Total assets	$	3,704.0	$	770.8	$	3,116.1	$	782.2		$	8,373.1