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    Northern Star gold hubs: deep extensions and design takeaways for mine planners

    December 8, 2025|

    Reviewed by Tom Sullivan

    Northern Star gold hubs: deep extensions and design takeaways for mine planners

    First reported on Australian Mining

    30 Second Briefing

    Northern Star Resources reports strong exploration results across its Australian hubs, with deep extensions and high‑grade gold intercepts at operations including Kalgoorlie Consolidated Gold Mines in Western Australia. Drilling has identified mineralisation continuing at depth beneath existing workings, with multiple emerging zones that could support life‑of‑mine extensions and higher‑grade feed to existing mills. For mine planners and geotechs, the focus now shifts to underground access design, ground support in deeper stress regimes, and sequencing to integrate new stopes into current production.

    Technical Brief

    • Deep drilling beneath existing workings will require revised geotechnical domains and updated stress modelling for design.
    • Longer underground declines to access deeper ore will increase exposure hours, driving stricter ground control management plans.
    • Additional drilling platforms and underground rigs necessitate refreshed traffic management, exclusion zones and ventilation checks.
    • Integration of new stopes into active areas raises seismic hazard, mandating enhanced microseismic monitoring and trigger action response plans.
    • Mine rescue coverage must extend to deeper levels, with revised escapeway layouts and refuge chamber spacing.
    • Ground support standards and QA/QC (e.g. pull testing, resin mixing control) will need tightening at depth.
    • Similar brownfield gold operations extending below current levels are likely to face comparable ground control and emergency response upgrades.

    Our Take

    Northern Star Resources is one of the few gold producers in our database with multiple WA hubs, so strong results “across all hubs” at assets like Kalgoorlie Consolidated Gold Mines signal portfolio-wide flexibility to re-sequence mining fronts if one centre underperforms.

    Within our 64 gold-tagged pieces, WA operations feature heavily, and this concentration suggests that maintaining consistent performance at Kalgoorlie is strategically important for sustaining Australia’s role as a top-tier gold producer in the medium term.

    Among the 424 Projects/Safety-tagged items, only a handful combine both tags for large, mature assets like Kalgoorlie Consolidated Gold Mines, indicating that Northern Star’s safety performance there will be closely watched as a benchmark for brownfield underground operations in WA.

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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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