The seeds of Tuesday's 4.6 percent copper slump -- the sharpest in almost three years -- were planted in a scarcely noted non-event earlier this month.
The world’s No.2 gold miner is also planning to boost dividend by at least 50% next year, based on balance sheet improvements and the performance of its gold mines.
The world's biggest gold miner is staking new ground in a dogged push to overhaul its operations, seeking scarce artificial intelligence experts to oversee projects using technology for everything from exploration to robot-run mining.