The digital venues have attracted traders as London Metal Exchange volumes fell after the coronavirus pandemic temporarily closed its floor for open outcry.
The world’s second-largest producer of iron ore continues to weigh up the pros and cons of forming a separate company with its copper and nickel mines in Canada, Brazil and Indonesia.
Stellantis, Bill Gates' Breakthrough Energy Ventures and others have invested millions of dollars or signed supply agreements with so-called direct lithium extraction (DLE) start-ups.