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5. FINANCE LEASE RIGHT-OF-USE ASSETS (Details) - USD ($)
Sep. 30, 2019
Dec. 31, 2018
At cost $ 2,244,686 $ 2,313,274
Less: accumulated depreciation and amortization (2,066,305) (2,062,517)
Net book value 178,381 250,757
Building    
At cost 116,344 119,899
Plant and machinery    
At cost $ 2,128,342 $ 2,193,375