Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Text Block [Abstract]

Disclosure Of Property Plant And Equipment Useful Life Explanatory

The significant classes of depreciable plant and equipment and their estimated useful lives are as follows:

Asset Class	Estimated useful life (years)
Fixed plant & related components and infrastructure	Units-of-production over life of mine
Mobile equipment	3-10 years