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Prepayment and other current assets
9 Months Ended
Sep. 30, 2011
Prepayment and other current assets
(4) Prepayment and other current assets

Prepayment and other current assets consisted of the following:
   
September
30,
2011
   
December 31,
2010
 
Prepayment for purchase of materials
 
$
158,661
   
$
158,848
 
Prepaid insurance
   
107,374
     
19,000
 
Others
   
36,250
     
6,875
 
   
$
302,285
   
$
184,723