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    GR Engineering’s 3 Mt/y Davyhurst plant: design and throughput notes for mine teams

    May 18, 2026|

    Reviewed by Joe Ashwell

    First reported on International Mining – News

    30 Second Briefing

    GR Engineering Services has been named preferred EPC contractor by Ora Banda Mining to deliver a 3 Mt/y gold process plant for the Davyhurst Expansion Project in Western Australia. The appointment follows Ora Banda’s ASX update outlining a step-up from the current 1.2 Mt/y Davyhurst plant, signalling a major throughput increase across its existing open pits and underground resources. For plant designers and contractors, the project points to upcoming demand for larger comminution, leach and tailings handling circuits in the Eastern Goldfields.

    Technical Brief

    • Appointment as “preferred contractor” indicates commercial terms still subject to final contract execution.
    • Contract structure implies GR Engineering will manage procurement risk and construction interface with existing site.

    Our Take

    A 3 Mt/y plant in Western Australia places the Davyhurst Expansion Project at the mid-scale end of gold-style processing capacity in our mining database, which typically supports flexible sequencing of multiple satellite pits or underground sources rather than a single large orebody.

    GR Engineering Services Limited appears frequently in our Australian project coverage as an EPC contractor on similar-sized plants, suggesting Ora Banda Mining Limited is following a de-risking pattern of using an experienced brownfields contractor for schedule and cost control.

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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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