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PROPERTY, PLANT AND EQUIPMENT, NET (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Property, Plant and Equipment [Line Items]      
Total $ 488,504,183 $ 677,895,274  
Depreciation of property, plant and equipment 52,250,595 37,371,791 35,479,645
Long-lived asset impairment 158,424,827 42,754,481 38,512,376
Buildings and plant [Member]
      
Property, Plant and Equipment [Line Items]      
Cost 235,690,310 437,805,571  
Machinery and equipment [Member]
      
Property, Plant and Equipment [Line Items]      
Cost 355,429,034 344,782,948  
Furniture, fixtures and equipment [Member]
      
Property, Plant and Equipment [Line Items]      
Cost 21,329,752 9,233,575  
Motor vehicles [Member]
      
Property, Plant and Equipment [Line Items]      
Cost 262,562 519,923  
Depreciable Assets [Member]
      
Property, Plant and Equipment [Line Items]      
Less: Accumulated depreciation (145,031,744) (133,746,851)  
Total 467,679,944 658,595,166  
Construction in process [Member]
      
Property, Plant and Equipment [Line Items]      
Cost $ 20,824,239 $ 19,300,108