Mubadala Investment Company and International Petroleum Investment Company are among over a dozen funds who filed claims in a London court.

Mineral royalties accounted for 2.8% of Zimbabwe's tax revenue in 2021, Zimbabwe Revenue Authority data shows.

The remarks come two days after global miner Anglo American expressed concern that the Peruvian government might be reconsidering the company's license.

Global miners operating in Zimbabwe will have to pay some of their royalties in refined metal rather than cash.

Mining minister made the announcement after meeting with union members, mine workers and technical experts studying the sinkhole.

Cosan said it made the purchase "through a subsidiary and a combination of direct investments, equity and derivative operations."

Anglo's Quellaveco mine is the largest new project set to start commercial operations this year, with an investment of $5.5 billion.

The group’s rapid expansion including acquisitions of metal companies has left it with an $11.7 billion debt load as of March.