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PREPAYMENT AND OTHER CURRENT ASSETS
6 Months Ended
Jun. 30, 2013
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:
 
 
 
June 30,
 
December 31,
 
 
 
2013
 
2012
 
 
 
US$
 
US$
 
Prepayment for equipment purchase
 
 
4,826,322
 
 
3,808,938
 
Other prepaid expenses
 
 
371,778
 
 
261,037
 
 
 
 
5,198,100
 
 
4,069,975