Original article by Paul Garvey
The Australian – Page: 21 : 18-Aug-17

BHP Billiton will expand its Spence copper mine in Chile at a cost of $US2.46bn ($A3.1bn). BHP had initially estimated in 2015 that expanding the project would cost around $US2.2bn. Dubbed the Spence Growth Option, the project will increase BHP’s annual copper output by about 185,000 tonnes during the first 10 years of the expansion. BHP anticipates an internal rate of return of about 16 per cent from the Spence Growth Option.

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