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PREPAYMENT AND OTHER CURRENT ASSETS (Tables)
12 Months Ended
Dec. 31, 2012
Prepayment and Other Current Assets [Abstract]  
Schedule of Prepayment and Other Current Assets [Table Text Block]

Prepayment and other current assets consist of the following:

 

    December 31,  
    2012     2011  
    US$     US$  
Prepayment for equipment purchase     3,808,938       2,300,415  
Other prepaid expenses     261,037       64,739  
      4,069,975       2,365,154