Property, Plant, Equipment and Development

6 Months Ended

Jun. 30, 2013

Property, Plant and Equipment [Abstract]

Property, Plant, Equipment and Development

Property, plant, equipment and development was comprised of the following:



(in millions)	June 30, 2013			December 31, 2012
Mining properties and mineral reserves	$	976.4		$	978.0
Mining and milling equipment and facilities	481.4			467.5
Processing facilities	166.0			165.8
Construction-in-progress	1,251.1			1,089.0
Other	18.7			18.2
	2,893.6			2,718.5
Less: Accumulated depreciation, depletion and amortization	(208.0		)	(179.6		)
	$	2,685.6		$	2,538.9

The construction-in-progress balance included $1,239.7 million and $1,079.8 million related to TCM's Mt. Milligan project currently under construction in British Columbia ("Mt. Milligan") as of June 30, 2013 and December 31, 2012, respectively. Capitalized assets related to the Endako Mine, an open pit molybdenum mine in British Columbia in which TCM owns a 75% joint venture interest (the "Endako Mine"), were subject to an asset impairment during the year ended December 31, 2012. See Note 6 of TCM's 2012 Form 10-K for further discussion of the asset impairment.

Allowances, which will be used to offset future taxable income, generated from qualifying new mine development costs were included as reductions to construction-in-progress in the Condensed Consolidated Balance Sheets by $69.0 million and $55.4 million as of June 30, 2013 and December 31, 2012, respectively.

- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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