Metso Concorde Cells at Barrick Lumwana: flotation flowsheet notes for engineers
Reviewed by Tom Sullivan

First reported on International Mining – News
30 Second Briefing
Barrick Gold has chosen Metso’s high‑intensity Concorde Cell™ flotation technology for the Lumwana copper mine expansion in Zambia, to operate in tandem with previously specified TankCell® units. The Concorde Cell is designed for complex, finely disseminated orebodies and ultra‑fine particle recovery, while TankCell units provide conventional rougher and cleaner flotation capacity. The combined flowsheet signals a move towards staged, high‑grade flotation circuits at Lumwana, with implications for reagent regimes, residence time design and potential debottlenecking of downstream dewatering and concentrate handling.
Technical Brief
- Concorde Cells are being engineered into Barrick’s Lumwana expansion flowsheet specifically as a high‑intensity stage.
- Metso’s scope now covers both advanced and conventional flotation equipment packages for the Zambian copper project.
- Selection follows earlier specification of TankCell units, indicating Barrick’s commitment to a single OEM for flotation.
- Integration of Concorde Cell with TankCell is being treated as a combined technology package rather than standalone units.
- Metso positions Concorde Cell as its flagship solution for complex orebodies with challenging mineralogy.
Our Take
Metso’s role at Barrick’s Lumwana expansion in Zambia lines up with its recent wins on the Ar Rjum gold plant in Saudi Arabia and the Viscaria copper grinding circuit in Sweden, signalling that major greenfield and expansion projects are increasingly standardising around its process packages across multiple regions.
Across our mining-project coverage, Metso’s 2025 record in stirred mill sales and more than 100 new Life Cycle Services contracts suggests that the Concorde Cell–TankCell configuration at Lumwana is likely to be backed by long-term OEM service and optimisation support rather than just one-off equipment supply.
Within the 659 mining stories in our database, Zambia appears less frequently than jurisdictions like Saudi Arabia or northern Europe, so Barrick’s Lumwana expansion using Metso technology is a notable datapoint for high-capex, OEM-led process upgrades in the country’s copper belt.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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