Rebuttal comes as shareholders launched an investigation over possible false and misleading statements made by the miner about its Pebble copper-gold project in Alaska.
The Australian coal industry has launched a new coal advertising campaign – Coal: Making the future possible – that highlights the important role coal will play in the world’s future energy mix while reducing emissions.
Silver is mainly a byproduct of zinc, lead (and copper) mining and capacity coming back on stream could see return of silver's chronic oversupply issues.