The US$473 million Zulti South mineral sands project in KwaZulu-Natal, South Africa, has been given the go-ahead.

Rio Tinto, which owns 74% of operator Richards Bay Minerals (RBM), reports that construction is expected to start in the first quarter of 2026, with initial commercial production set for the end of 2028. The project had been postponed in 2020.

The new mine is expected to secure supply of zircon, ilmenite and rutile for RBM to continue producing titanium dioxide at its minerals separation plant and smelter at Zulti North. Titanium dioxide is used in the production of paint, sunscreen, medical equipment and smartphones. Zulti North’s orebody is declining , and the new investment is expected to extend life of mine by 50 years, according to Rio Tinto.

It says the China Harbour Engineering Company (CHEC), which previously partnered with the mining company on the Simondou iron ore project in Guinea, has been appointed contractor for engineering, procurement and construction.

‘This project is not about expansion; it represents our commitment to sustaining jobs and continuing to make a meaningful contribution to the province, the country, and the host communities. The decision to proceed also reflects improved security conditions and strengthened community partnerships,’ said Werner Duvenhage, MD of Rio Tinto Iron and Titanium African Operations.

10 March 2026
Image: Richards Bay Minerals