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    Perenti’s Barminco A$180m Duketon extension: planning notes for mine engineers

    April 8, 2026|

    Reviewed by Joe Ashwell

    Perenti’s Barminco A$180m Duketon extension: planning notes for mine engineers

    First reported on International Mining – News

    30 Second Briefing

    Perenti’s underground mining arm Barminco has secured a A$180 million extension to its alliance-style contract with Regis Resources at the Duketon Operations in Western Australia’s Goldfields, building on the three-year agreement first announced on 2 April 2024. The extension keeps Barminco in place for additional years of underground development and production services, locking in fleet, workforce and ground support planning across multiple Duketon orebodies. Contractors and suppliers can expect continued demand for underground drilling, blasting, ventilation, and backfill consumables tied to Regis’ ongoing gold production strategy.

    Technical Brief

    • Contract structure remains alliance-style, implying shared risk/reward and collaborative mine-planning processes.
    • Alliance framework usually integrates mine design, scheduling and cost control between Regis and Barminco teams.
    • Longer-term commitment supports optimisation of underground fleet selection, maintenance scheduling and parts inventory.
    • Suppliers of explosives, ground support and ventilation consumables gain medium-term order-book certainty tied to this extension.
    • Similar alliance-style contracts in Western Australian goldfields are increasingly used to manage cost volatility and orebody uncertainty.

    Our Take

    The A$180 million extension at Duketon Operations reinforces Perenti Limited’s underground order book at a time when, according to our database, most recent Perenti coverage has focused on leadership transition, including the appointment of Dr Vanessa Torres as managing director and CEO on 1 April 2026.

    For Regis Resources Limited, locking in a multi‑year underground mining services contract in the Goldfields region tends to stabilise unit mining costs, which is strategically important in an environment where many Australian mid‑tier operators are juggling contractor rate inflation across multiple projects.

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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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