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    Davyhurst mill expansion EPC: design and throughput notes for gold plant engineers

    June 15, 2026|

    Reviewed by Joe Ashwell

    Davyhurst mill expansion EPC: design and throughput notes for gold plant engineers

    First reported on International Mining – News

    30 Second Briefing

    Ora Banda Mining has signed an EPC contract with GR Engineering Services to expand the Davyhurst processing plant in Western Australia to 3 Mt/y capacity under the Davyhurst Mill Expansion Project. GR Engineering, named preferred contractor in May 2026, will deliver detailed engineering, procurement and construction for the upgraded gold circuit, building on the existing Davyhurst mill footprint. The project signals further debottlenecking and throughput upgrades in the Eastern Goldfields, with design choices likely to focus on higher SAG/ball mill power draw and improved classification to sustain 3 Mt/y.

    Technical Brief

    • EPC scope with GR Engineering covers detailed design, procurement, construction and commissioning of the upgraded plant.
    • Contract execution follows GR Engineering’s preferred-contractor appointment announced on 18 May 2026.

    Our Take

    Western Australia features heavily in our Mining project coverage, and EPC-style mill upgrades like Davyhurst’s 3 Mt/y expansion often signal a push to sweat existing assets harder rather than open new greenfield operations in the state’s tighter permitting environment.

    GR Engineering Services appears frequently in our Australian project database as a mid-tier EPC contractor, so securing the Davyhurst Mill Expansion EPC work reinforces its positioning as a go‑to builder for brownfield plant debottlenecking and capacity uplift jobs.

    With this 2026‑dated contract sitting in the ‘Financing’ deal_type bucket, it aligns with a pattern in our coverage where smaller producers such as Ora Banda Mining use contractor‑led EPC structures to lock in cost and schedule certainty when scaling processing capacity.

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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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