5. PROPERTY, PLANT AND EQUIPMENT, NET (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012
Property, Plant and Equipment [Abstract]
Mineral rights	$ 6,350,999		$ 6,334,277
Buildings	51,039,719		50,905,337
Plant and machinery	166,559,864		166,121,329
Motor vehicles	9,165		9,140
Furniture, fixtures and office equipment	4,789,655		4,777,044
Total	228,749,402		228,147,127
Less: Accumulated depreciation and amortization	(69,100,194)		(62,204,585)
Net book value	$ 159,649,208	$ 165,942,542	$ 165,942,542

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived 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, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived 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, furniture and fixtures, and computer equipment.

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