Agro-mining is the process of growing plants that absorb metal through soil, a mechanism to clean poisoned lands and maybe gather battery components like nickel and cobalt.

The 500,000-tonne-per-year direct-to-blister plant will be the largest copper smelter in Africa.

The commodities boom that helped propel producer inflation to a 26-year high in China is showing signs of waning.

The Portovesme line, which can produce 100,000 tonnes of zinc sulphide a year, will be put on care and maintenance by the end of the year.

Transparency activists have estimated Congo has lost out on billions of dollars of revenue from mining deals over the past two decades.

Prices of metals such as tin, aluminum, copper, nickel and cobalt have risen between 20% and 91% this year.