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Other Payables and Accrued Liabilities (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Summary of other payables and accrued liabilities    
Accrued electricity $ 232,763 $ 314,598
Accrued professional fees 143,597 58,000
Accrued interest 656,623 269,019
Payable for purchase of equipment 152,173 936,908
Insurance premium payable 56,773   
Others 20,355 11,016
Totals $ 1,262,284 $ 1,589,541