Lack of new projects, investment deficit and increasing political risk will hit supply of cobalt, lithium, copper and nickel, key metals for making the batteries that power electric cars.
The two companies will exchange past exploration information on areas prospective for diamonds in Zimbabwe and form a jointly-owned special purpose vehicle to develop and exploit diamond resources.
Bringing the project to production is expected to take about four years, but Donlin gold project is still has a long way to go in the permitting process before construction and operations can begin.