But according to the updated feasibility study total capital expenditure for the life of Wafi-Golpu mine will fall by about the same amount to $5.5 billion.
Geopolitical turmoil not piercing bullion markets yet – gold in tightest weekly trading range in percentage terms since 2012; in dollar terms since 2007.
Alumina refineries and aluminium smelters in parts of China cut production by 30% during November to March as part of a campaign against air pollution.
German researchers say cobalt-free battery technologies — including post-lithium technologies based on non-critical elements — are the best way to avoid supply issues in the long term.