Rio Tinto approves Zulti South investment of R8.5 billion [US$473 million] and lifts project suspension

Rio Tinto has approved a R8.5 billion (US$473 million) investment in the Zulti South project at Richards Bay Minerals, lifting a suspension in place since 2020. The development will extend the mine’s life to 2050 and secure continued production of zircon, rutile and ilmenite. China Harbour Engineering Company (CHEC) has been appointed as EPC contractor. Construction begins in Q1 2026, with commercial production expected in Q4 2028.
March 2, 2026

Rio Tinto has approved a major investment of approximately R8.5 billion (US$473 million) in the Zulti South project at Richards Bay Minerals (RBM), formally lifting the project suspension that has been in place since January 2020.

The approval represents a significant milestone for RBM and the KwaZulu-Natal mining sector, securing the long-term sustainability of operations and extending the mine’s life to 2050.

RBM currently mines at Zulti North, where its mineral separation and smelting facilities are located. As the ore at Zulti North is running out, the new Zulti South project will ensure a steady supply of zircon, rutile and ilmenite, helping the mine continue operating and supporting long-term TiO₂ sales.

Strategic Partnership with CHEC

China Harbour Engineering Company (CHEC) has been appointed as the Engineering, Procurement and Construction (EPC) contractor for the Zulti South development.

CHEC has a strong track record, including its partnership with Rio Tinto on the Simandou project in Guinea. The company is experienced in delivering large-scale projects safely and efficiently, while meeting health, safety and environmental standards and working closely with local communities.

Werner Duvenhage, Managing Director of Rio Tinto Iron & Titanium Africa Operations and RBM, said:

“Lifting the suspension on Zulti South means securing the future of RBM. 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. The support of government, Amakhosi and host communities has been vital in establishing this stability. We remain committed to working with all stakeholders to ensure the project’s continued success.”

He added that CHEC’s proven track record at Simandou and its established presence in Africa, including South Africa, provides confidence in the company’s ability to deliver the project safely and efficiently while meeting local content and community commitments.

Mr Wu Di, Vice President of CHEC, stated:

“We are honoured to be chosen as Rio Tinto’s strategic execution partner for Zulti South. Our relationship is founded on trust, performance, and shared values. We are committed to delivering a project that strengthens RBM’s future and benefits local communities.”

Project Timeline

Construction is expected to commence in Q1 2026, with a development period of approximately 30 months. Initial commercial production is anticipated in Q4 2028.

The first phase will secure RBM’s supply of zircon and ilmenite, with a second phase forming part of the company’s longer-term development strategy.

The Zulti South approval signals renewed investment confidence in South Africa’s mineral sands sector and reinforces Rio Tinto’s long-term commitment to the region.