The company said production at its South African unit Kumba Iron Ore will be dented by poor rail capacity.

South Africa produces nearly 90% of its total energy supply from coal.

Congo suspects CMOC understated the mine's reserves to reduce the amount of royalties it pays to Gecamines.

The new resource estimation is in addition to Séguéla’s current mineral reserves of 12.1 milllion tonnes averaging 2.80 g/t gold containing 1.09 million ounces.

Tenke Fungurume Mining suspended copper and cobalt exports in July, when a dispute between Congo and CMOC escalated.

Windfall revenue from mining has compensated for some of the unexpected expenses of fighting a rebellion.

Minister Robert Habeck is visiting Namibia and South Africa to secure new energy resources for Europe’s biggest economy.