Minerals 260 Bullabulling approval: plant and TSF design notes for engineers
Reviewed by Joe Ashwell

First reported on Australian Mining
30 Second Briefing
Minerals 260 has secured a Works Approval from Western Australia’s Department of Water and Environmental Regulation for key infrastructure at its 6.2-million-ounce Bullabulling gold project near Coolgardie. The approval covers construction of the proposed processing plant, associated power infrastructure and a tailings storage facility, clearing a major regulatory hurdle before mining proposals and project financing. For engineers and designers, this signals that detailed plant layout, TSF embankment design and power supply integration can now progress towards execution-level planning.
Technical Brief
- Works Approval enables detailed engineering for process plant foundations, earthworks and drainage layouts.
- Tailings storage facility design can now progress to embankment zoning, liner selection and decant systems.
- Power infrastructure scope likely includes HV distribution, substation siting and integration with plant MCCs.
- Approval sequencing means mining proposal, pit designs and waste landforms can be advanced with defined plant footprint.
- Environmental conditions attached to the Works Approval will drive water management, dust control and noise mitigation design.
Our Take
Bullabulling’s 6.2‑million‑ounce resource puts it at the upper end of single‑asset gold projects in our database for Western Australia, which typically cluster well below this scale around Coolgardie and Kalgoorlie.
The recent A$410 million debt package backed by ANZ, NAB and Société Générale for Minerals 260’s Bullabulling project signals that lenders view long‑life WA gold assets as bankable even without hedging, which could influence financing terms for other large gold projects in the state.
Multiple related pieces on Bullabulling in our Mining projects coverage indicate a rapid progression from drilling success to full financing and now contract awards, suggesting Minerals 260 is compressing the usual development timeline for a project of this size in Western Australia.
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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