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7. ACCOUNTS PAYABLE AND ACCRUED EXPENSE (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Accounts Payable And Accrued Expense Details    
Accounts payable $ 3,797,552 $ 3,645,804
Salary payable 190,926 132,454
Social security insurance contribution payable 52,399 39,129
Amount due to a contractor 0 1,422,042
Price adjustment funds 1,758,828 1,031,685
Other payables 733,531 1,102,529
Total $ 6,533,236 $ 7,373,643