Metso to deliver mineral processing equipment for the Tonkolili iron ore project in Sierra Leone
Metso Corporation’s press release on December 22, 2025, at 1p.m. EET
Leone Rock Metal Group (LRMG) has awarded Metso an order to supply minerals processing equipment for the Tonkolili iron ore project’s Phase III 30-million-tonne magnetite concentrator in Sierra Leone. The order value, which is not disclosed, is booked in the Minerals segment’s 2025 fourth-quarter orders received.
Metso’s delivery includes engineering, manufacturing, supply, installation, and commissioning support, as well as a spare parts provision for a Superior™ MKIII 50-65 primary gyratory crusher, six Nordberg® HP900™ cone crushers, two vertical regrinding mills with 5.6MW installed power, and one HRT High Rate Thickener. The vertical mills and high-rate thickener are part of the Metso Plus - Opens in a new window portfolio, helping customers enhance energy efficiency, reduce carbon emissions, and improve production efficiency.
"Metso will provide comprehensive support to Leone Rock Metal Group through our advanced proprietary mineral processing technologies, global service network, and extensive experience in project execution. We are committed to helping LRMG achieve their goals for efficient, stable, and sustainable operation," says Xun Fang, Vice President of Metso’s Minerals Sales in Greater China. “Previously, Metso has supplied two high-rate thickeners for Phase I and II of the Tonkolili project. This third-phase cooperation reflects the ongoing trust and close collaboration between the two parties.”
About Leone Rock Metals Group and the Tonkolili iron ore project
Leone Rock Metals Group operates in mining, processing, transport, and steel production. The new Tonkolili iron ore project, located in the Northern Province, holds about 13.7 billion tonnes of reserves, making it Sierra Leone’s largest iron ore mine. Once complete, the plant will process 30 million tonnes of ore annually, producing 10 million tonnes of iron concentrate.
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Further information:
Xun Fang, General Manager, Minerals Sales, Greater China, Metso, tel. +86 138 1087 2489, xun.fang(at)metso.com
Metso Media Desk, tel.+358 20 482 1930, email: media(at)metso.com
Metso is a frontrunner in sustainable technologies, end-to-end solutions and services for the aggregates, minerals processing and metals refining industries globally. We improve our customers’ energy and water efficiency, increase their productivity, and reduce environmental risks with our product and service expertise. We are the partner for positive change.
Metso is headquartered in Espoo, Finland. At the end of 2024 Metso had close to 17,000 employees in around 50 countries, and sales in 2024 were about EUR 4.9 billion. Metso is listed on the Nasdaq Helsinki.
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