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Prepayment and other current assets
6 Months Ended
Jun. 30, 2012
Prepayment and other current assets

(4) Prepayment and other current assets

 

Prepayment and other current assets consisted of the following as of June 30, 2012 and December 31, 2011:

 

    June 30,
2012
    December 31,
2011
 
Prepaid AMEX annual fee   $ 20,625     $ 18,125  
Recoverable VAT     4,166,984       4,776,962  
Prepaid insurance     167,765       61,357  
Prepayment for purchase of materials     146,809       206,930  
Others     4,223       7,841  
    $ 4,506,406     $ 5,071,215