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    Artemis Gold Blackwater outage: reliability and schedule notes for mine engineers

    March 12, 2026|

    Reviewed by Tom Sullivan

    Artemis Gold Blackwater outage: reliability and schedule notes for mine engineers

    First reported on MINING.com

    30 Second Briefing

    Artemis Gold has halted processing at its Blackwater mine in central British Columbia after a ball mill gearbox failure forced a production outage expected to last 8–10 days, though mining activities continue and a replacement gear is on hand. First-quarter output will be below plan, but full-year guidance of 265,000–290,000 oz remains unchanged as the company brings forward second-quarter maintenance to use the downtime. The shutdown briefly knocked Artemis’ market capitalisation below C$9 billion, despite Blackwater having produced 192,808 oz of gold in its first eight months of operation in 2025.

    Technical Brief

    • Failure mechanism is a ball mill gearbox malfunction, implying drivetrain torsional/gear tooth distress rather than shell or bearing damage.
    • Investigation will centre on gearbox inspection, oil/particle analysis and alignment checks to distinguish wear, lubrication or overload causes.
    • Repair scope is limited to gear replacement with parts already on site, avoiding extended lead-time procurement risk.
    • With mining activities continuing, ore stockpiles will build at Blackwater, requiring short-term ROM pad capacity and material blending planning post-restart.
    • Maintenance originally scheduled for Q2 is being advanced into the outage window, effectively converting unplanned downtime into planned mechanical and electrical works.
    • For similar single-train grinding circuits, the event reinforces the value of online vibration/temperature monitoring and condition-based maintenance on gearboxes to reduce sudden outages.

    Our Take

    With Artemis Gold’s Blackwater mine in British Columbia experiencing a short outage, it contrasts with Enami’s focus on long-life copper assets like the Llurimagua project in Ecuador, underscoring how state-backed Latin American players in our database are emphasising multi-decade stability while Canadian gold producers manage early ramp-up reliability risk.

    A sub‑two‑week repair window at a C$9 billion‑class gold producer places this incident at the lower end of disruption severity among the 2058 tag‑matched ‘Failure’ and ‘Safety’ pieces in our coverage, suggesting more of a commissioning reliability issue than a structural threat to asset value.

    The 192,808 oz of gold produced over eight months in 2025 at Blackwater positions Artemis Gold among the more substantial single‑asset gold names in our database, meaning even brief stoppages can have outsized market reactions, as reflected in the 6% intraday share price move.

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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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