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PREPAYMENT AND OTHER CURRENT ASSETS
9 Months Ended
Sep. 30, 2011
Prepayment and Other Current Assets [Abstract] 
Prepayment and Other Current Assets [Text Block]
3. 
PREPAYMENT AND OTHER CURRENT ASSETS

Prepayment and other current assets consist of the following:

   
September 30,
   
December 31,
 
   
2011
   
2010
 
   
US$
   
US$
 
Advances to suppliers
    959,204       1,071,101  
Prepayment for equipment purchases
    6,563,340       3,444,636  
Other prepaid expenses
    850,089       785,088  
      8,372,633       5,300,825