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5. PROPERTY, PLANT AND EQUIPMENT, NET (Details) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Property, Plant and Equipment [Abstract]
Mineral rights	$ 6,443,763	$ 6,334,277
Buildings	51,785,222	50,905,337
Plant and machinery	168,992,691	166,121,329
Motor vehicles	9,298	9,140
Furniture, fixtures and office equipment	4,859,614	4,777,044
Total	232,090,588	228,147,127
Less: Accumulated depreciation and amortization	(76,972,730)	(62,204,585)
Net book value	$ 155,117,858	$ 165,942,542

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Vehicles Gross

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Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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