Rox Resources–MIQM Youanmi EPC: processing plant timelines for mine planners
Reviewed by Joe Ashwell

First reported on International Mining – News
30 Second Briefing
Rox Resources has appointed MACA Interquip Mintrex (MIQM), part of the MACA Limited Group, as preferred EPC contractor for the new Youanmi gold processing plant and associated facilities at its 100%-owned Youanmi project in Western Australia. MIQM will deliver engineering, procurement and construction for the plant, drawing on its multi-disciplinary capability across process plant design, structural and mechanical works, and site infrastructure. The appointment signals progression towards detailed design and construction, giving mine planners clearer timelines for integrating processing capacity with pit and underground scheduling.
Technical Brief
- EPC scope covers the Youanmi processing plant plus ancillary site facilities and infrastructure packages.
- MACA Interquip Mintrex will integrate process, structural, mechanical and civil design under a single contract.
- Consolidated EPC responsibility should simplify interface management between plant construction and mine development contractors.
- Early EPC contractor engagement allows concurrent detailed design and long‑lead procurement for the processing plant.
- MACA Limited Group backing gives Rox access to in‑house construction, commissioning and operational support capability.
Our Take
Within our 1026 Mining stories, Western Australia gold projects like Youanmi tend to move from study to execution relatively quickly once an EPC contractor is locked in, which usually tightens timelines for securing power, water and tailings approvals.
MACA-linked entities appear frequently in our Projects and Contract Award coverage for mid-tier Australian gold plants, suggesting Rox Resources is aligning Youanmi with contractors experienced in brownfields-style refurbishments and modular plant delivery rather than bespoke mega-scale builds.
Gold pieces in our database often flag processing plant performance as the main lever on project economics, so the EPC scope at the Youanmi Processing Plant is likely to be scrutinised for choices around grind size, gravity–CIP balance and potential for later debottlenecking or expansion.
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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