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    Core Lithium Finniss restart: staged plant ramp-up insights for mine engineers

    September 8, 2026|

    Reviewed by Joe Ashwell

    Core Lithium Finniss restart: staged plant ramp-up insights for mine engineers

    First reported on Australian Mining

    30 Second Briefing

    Core Lithium has produced first spodumene concentrate from the recommissioned processing plant at its Finniss lithium operation in the Northern Territory, less than six months after the final investment decision to restart the mine. The staged restart follows a care-and-maintenance period triggered by weak lithium prices and involves progressively ramping the dense media separation and crushing circuits before reintroducing fines flotation. For engineers, the rapid recommissioning timetable and phased process restart signal confidence in plant integrity, orebody performance and near-term market conditions.

    Technical Brief

    • Rapid restart schedule implies minimal flowsheet modification, relying largely on existing Finniss plant configuration.
    • Staged ramp-up allows progressive calibration of ore characterisation models against actual Finniss plant performance.
    • Similar lithium mining restarts may adopt phased DMS-first strategies to reduce early-stage metallurgical risk.

    Our Take

    Our database shows multiple 2026 items on Finniss – from the Grants open pit start to BP33 underground portal cutting – signalling that Core Lithium is progressively shifting the operation from a single-pit start-up towards a multi-source, longer-life lithium hub in the Northern Territory.

    The recent drilling at Blackbeard and high‑grade spodumene hits beyond the current BP33 resource suggest that any Finniss restart is likely being framed around a larger, more flexible feed base for the spodumene concentrate plant rather than a simple return to the original mine plan.

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    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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