A truck exits the mine after collecting ore from 516 metres below the surface at the Chibuluma copper mine in the Zambian copper belt region. Copper miners have halted $2bn of planned investments because of a dispute over a royalty tax. REUTERS
A truck exits the mine after collecting ore from 516 metres below the surface at the Chibuluma copper mine in the Zambian copper belt region. Copper miners have halted $2bn of planned investments becaShow more

Zambia plans sale of copper mines owned by billionaire Anil Agarwal