Property, Plant, Equipment and Development

3 Months Ended

Mar. 31, 2013

Property, Plant and Equipment [Abstract]

Property, Plant, Equipment and Development

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



(in millions)	March 31, 2013			December 31, 2012
Mining properties and mineral reserves	$	982.8		$	978.0
Mining and milling equipment and facilities	493.7			467.5
Processing facilities	165.9			165.8
Construction-in-progress	1,156.7			1,089.0
Other	18.7			18.2
	2,817.8			2,718.5
Less: Accumulated depreciation, depletion and amortization	(195.2		)	(179.6		)
	$	2,622.6		$	2,538.9

The construction-in-progress balance includes $1,147.9 million and $1,079.8 million related to TCM's Mt. Milligan project currently under construction in British Columbia ("Mt. Milligan") as of March 31, 2013 and December 31, 2012, respectively. Capitalized assets related to 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 are included as reductions to construction-in-progress in the Condensed Consolidated Balance Sheets by $58.0 million and $55.4 million as of March 31, 2013 and December 31, 2012, respectively.

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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