Metso selected as key process technology partner for the New Simberi Gold Project Expansion in Papua New Guinea

Metso has been awarded several major process technology packages covering grinding, flotation, thickening and filtration for the New Simberi Gold Project Expansion in Papua New Guinea. The project is being developed by Simberi Gold Company Limited (50:50 Lingbao Gold Group and St Barbara Limited), with engineering delivery by Pitch Black Group. These packages strengthen Metso’s role as a strategic technology partner for one of Asia-Pacific’s most significant new gold processing developments. 

The order value of approximately EUR 10 million has been booked in the Minerals segment’s 2026 third-quarter orders received. 

The New Simberi Gold Project Expansion will transform the existing Simberi operation from processing oxide ore to treating fresh sulphide ore, enabling a substantial increase in mining rates and supporting long-term growth in gold production. Feasibility work has outlined a pathway to approximately 200,000 ounces of annual gold production and a significant expansion of material movement from current levels. 

Metso will supply a comprehensive package of key flotation, concentrate grinding, thickening and filtration technologies to support the transition from oxide to fresh sulphide ore. The scope includes Vertimill® regrind milling technology, Metso TankCell® flotation circuit and Metso VPA Pressure filtration technology for concentrate dewatering, together with a Metso High Rate Thickener (HRT) with ReactorwellTM technology for optimised flocculation and mixing efficiency. The technologies are designed to support improved throughput, recovery, water efficiency and robust operation in Simberi’s remote operating environment. These deliveries expand Metso’s scope for the project, following earlier contracts in H1 2026 for a Nordberg® HP200e™ cone crusher and two apron feeders. 

“The New Simberi Gold Project Expansion represents one of the most significant gold processing developments currently underway in the Pacific region. We are delighted to continue strengthening our relationship with Lingbao Gold, St Barbara and Pitch Black Group. Metso’s participation across the comminution, flotation and dewatering circuits demonstrates the value of our integrated flowsheet approach and our ability to support customers with energy-efficient, high-performance processing solutions throughout the plant lifecycle,” says David Tulloch, Vice President, Minerals, Asia Pacific at Metso.  

“The New Simberi Gold Project Expansion marks the next phase of growth for Simberi and is expected to significantly increase production while extending mine life. Metso’s process technology offering and demonstrated experience in delivering large-scale gold processing solutions were key considerations in selecting them as a major equipment supplier to the project. We look forward to working closely with Metso and Pitch Black as we progress the project into execution,” says Andrew Lawry, Project Director, New Simberi Gold Project Expansion. 

The project equipment incorporates technologies for improved energy efficiency, water recovery and overall process performance while supporting reliable operation in a remote operating environment. Metso’s integrated technology offering will contribute to the project’s objective of efficiently processing fresh sulphide ore and maximizing gold recovery.  

Read more on Metso’s solutions for the mining industry on our website – Opens in a new window. 

 
Further information:  

David Tulloch, Vice President, Minerals, Asia Pacific, Metso, tel. +61 417 666 760, email: david.tulloch(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 2025 Metso had close to 18,000 employees in around 50 countries, and sales in 2025 were about EUR 5.3 billion. Metso is listed on the Nasdaq Helsinki. 

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