Property, Plant and Equipment, net (Tables)

3 Months Ended

Mar. 31, 2012

Schedule of property, plant and equipment

	March 31, 2012			December 31, 2011

Land	$	11,350		$	11,059
Land improvements		15,912			15,748
Buildings and improvements		26,376			23,677
Plant and equipment		85,752			68,441
Vehicles		1,548			1,235
Computer software		4,425			3,002
Furniture and fixtures		635			464
Construction in progress		683,860			436,547
Mineral properties		24,790			24,692

Property, plant and equipment at cost		854,648			584,865
Less accumulated depreciation		(26,932	)		(23,237	)

Property, plant and equipment, net	$	827,716		$	561,628

- Definition

Tabular disclosure of the useful life and salvage value of 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.

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