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PROPERTY, PLANT AND EQUIPMENT, NET
12 Months Ended
Dec. 31, 2011
PROPERTY, PLANT AND EQUIPMENT, NET  
PROPERTY, PLANT AND EQUIPMENT, NET

6. PROPERTY, PLANT AND EQUIPMENT, NET

        Property, plant and equipment, net consist of the following:

 
  At December 31,
2010
  At December 31,
2011
 
 
  $
  $
 

Buildings

    67,962,404     150,147,460  

Leasehold improvements

    3,293,248     2,742,305  

Machinery

    213,220,584     413,079,111  

Furniture, fixtures and equipment

    14,086,113     26,397,638  

Motor vehicles

    2,252,790     2,908,260  
           

 

    300,815,139     595,274,774  

Less: Accumulated depreciation

    (64,257,989 )   (122,078,346 )
           

 

    236,557,150     473,196,428  

Construction in process

    93,902,828     36,873,008  
           

Property, plant and equipment, net

    330,459,978     510,069,436  
           

        Depreciation expense of property, plant and equipment was $20,390,862, $30,946,035 and $55,104,656 for the years ended December 31, 2009, 2010 and 2011, respectively. Construction in process represents production facilities under construction.