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6. PROPERTY, PLANT AND EQUIPMENT UNDER CAPITAL LEASES, NET (Details) - USD ($)
Mar. 31, 2018
Dec. 31, 2017
At cost: $ 2,535,642 $ 2,440,135
Less: accumulated depreciation and amortization (2,050,782) (1,947,897)
Net book value 484,860 492,238
Building [Member]    
At cost: 130,868 125,939
Plant and machinery    
At cost: $ 2,404,774 $ 2,314,196