Mt Holland spodumene expansion: ore sorting and cost impacts for mine planners
Reviewed by Tom Sullivan
First reported on International Mining – News
30 Second Briefing
Wesfarmers and SQM have jointly approved a final investment decision to expand the Mt Holland lithium project in Western Australia, adding a new integrated ore sorting facility alongside the existing mine and concentrator. The project, operated by Covalent Lithium, will double spodumene concentrate output and is expected to materially reduce unit operating costs while accelerating cash flow from the operation. For mine planners and process engineers, the key change is the upstream ore sorting step, which should improve feed grade and reduce downstream milling and flotation load.
Technical Brief
- Expansion decision jointly approved by Wesfarmers Limited and Sociedad Quimica y Minera de Chile S.A (SQM).
- Project remains an integrated operation combining open-pit mine, concentrator and new ore sorting facility.
Our Take
SQM’s role at Mt Holland sits alongside its Chilean brine exposure, and in our database this is one of the few lithium items where SQM is tied to hard‑rock spodumene rather than salar projects such as Maricunga.
With Wesfarmers backing Covalent Lithium while Codelco and others delay large brine projects, additional spodumene from Mt Holland is likely to tighten the cost and schedule pressure on emerging Australian peers such as Global Lithium Resources’ Manna development.
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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