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5. FINANCE LEASE RIGHT-OF-USE ASSETS (Tables)
9 Months Ended
Sep. 30, 2020
Leases [Abstract]  
Property, plant and equipment under capital leases
    September 30,
2020
  December 31,
2019
At cost:                
Buildings   $ 120,837     $ 117,956  
Plant and machinery     2,210,537       2,157,848  
Total     2,331,374       2,275,804  
Less: Accumulated depreciation and amortization     (2,151,545 )     (2,096,278 )
Net book value   $ 179,829     $ 179,526