The Bougainville government has imposed an indefinite moratorium on mining at the controversial Panguna site — once the world's biggest open-pit copper mine.
China told the WTO it would stop accepting certain types of foreign solid waste, including metals, in 2018 if they didn't meet stricter impurity thresholds.
Coal and iron ore dominated mining takeovers in 2017, Thomson Reuters data shows, with buyers favoring the heavily polluting devil they know over the uncertainties of a battery-powered future.
The mining cycle turned two years ago – gains for the sector's largest companies have far outpaced stocks like Apple, Amazon, Google and Facebook since.
Physical gold demand across Asia remained subdued this week as prices rallied to a three-and-a-half-month high, keeping retail buyers away from the market.
Cold weather is expected to hit regions across China in the coming week, bringing snow and rain that may cause disruptions at construction sites, one of the biggest consumers of steel.