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5. FINANCE LEASE RIGHT-OF-USE ASSETS (Tables)
 6 Months Ended
Jun. 30, 2020
Leases [Abstract]  
Property, plant and equipment under capital leases
    June 30,
2020		   December 31,
2019
At cost:                
Buildings   $ 116,237     $ 117,956  
Plant and machinery     2,126,386       2,157,848  
Total     2,242,623       2,275,804  
Less: Accumulated depreciation and amortization     (2,068,330 )     (2,096,278 )
Net book value   $ 174,293     $ 179,526