Gold is among those metals, as are ruthenium, platinum, and iridium.

Valterra Platinum, the world's biggest miner of the metal by value, made its trading debut on the Johannesburg bourse as a ...

Valterra Platinum, the world's biggest miner of the metal by value, made its trading debut on the Johannesburg bourse as a ...

The London-based mining giant will distribute its controlling interest in Johannesburg-listed Valterra Platinum to ...