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    Contract Award

    Decmil’s Brockman 4 MEM workshop: design and load considerations for mine engineers

    December 19, 2025|

    Reviewed by Tom Sullivan

    First reported on International Mining – News

    30 Second Briefing

    Decmil has secured an A$81 million contract from Rio Tinto to deliver a Mobile Equipment Maintenance (MEM) Workshop Expansion at the Brockman 4 iron ore mine in Western Australia’s Pilbara. The scope includes a new MEM workshop, office and associated infrastructure to service large haul trucks and ancillary fleet, supporting higher availability of mobile plant in a remote, high-dust environment. Civil and structural works will need to accommodate heavy vehicle loads, large-span workshop bays and integration with existing mine services and traffic flows.

    Technical Brief

    • Contract value is A$81 million, awarded via notice of award to Decmil, a Macmahon subsidiary.
    • Scope includes construction of a new MEM workshop plus a separate office facility at Brockman 4.

    Our Take

    Rio Tinto’s Pilbara operations feature prominently in our mining project coverage, and additional workshop capacity at Brockman 4 signals continued long-life planning for its iron ore hub even when market headlines are more focused on new deposits than sustaining infrastructure.

    Decmil’s win at the Brockman 4 Mobile Equipment Maintenance Workshop Expansion project reinforces a pattern in our database of mid-tier Australian contractors securing brownfield Pilbara work, which can provide more stable margins than lump-sum greenfield EPC packages.

    For Macmahon Holdings Limited, which appears elsewhere in our coverage on contract mining, the development of dedicated mobile equipment maintenance facilities at sites like Brockman 4 typically underpins higher equipment availability targets, tightening performance expectations on mining services providers across Western Australia.

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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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