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PREPAYMENT AND OTHER CURRENT ASSETS (Details) (USD $) | Jun. 30, 2014 | Dec. 31, 2013
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PREPAYMENT AND OTHER CURRENT ASSETS [Line Items] |  |
Deposits for equipment purchase | $ 3,337,705 | $ 4,867,803
Other | 978,336 | 730,181
Prepayment and other current assets | $ 4,316,041 | $ 5,597,984

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