Asia accounted for 33% of Rusal's revenue in the first six months of the year, up from 23% a year earlier.

The graphite producer also said it was targeting readiness for a final investment decision on the expansion of the vertically integrated Vidalia facility's production capacity.

Japan's minister for economy is visiting five countries to try to build an African supply chain of critical minerals.

Cobalt prices are down more than 50% from October, due to weak demand and growing supplies from Indonesia.

Barrick considers the mine one of the world's largest underdeveloped copper-gold areas.

Tin is the strongest performing metal on the LME this year.

The nickel producer entered a share-sale deal in June to issue about 20% of its shares to PT Danusa Tambang Nusantara.