Lynas Rare Earths profit surge: mine expansion and processing insights for engineers
Reviewed by Joe Ashwell

First reported on Australian Mining
30 Second Briefing
Lynas Rare Earths has reported record profits on the back of surging global demand for rare earth oxides used in permanent magnets for EV motors and wind turbines, enabling accelerated expansion of its Mt Weld mine and downstream processing. CEO Amanda Lacaze is pushing ahead with capacity growth at the Western Australian concentrator and the new Kalgoorlie cracking and leaching plant, designed to reduce reliance on offshore processing. For mine planners and process engineers, the move signals sustained demand for high-grade monazite-hosted rare earth ores and long-term justification for beneficiation and hydrometallurgical upgrades.
Technical Brief
- Profit uplift is being channelled directly into capital works at Mt Weld and Kalgoorlie rather than dividends.
- Lynas is prioritising upstream and midstream processing investment in Australia to internalise more of the value chain.
- Expansion planning is being framed around long-term offtake contracts with magnet manufacturers, not short-term spot pricing.
- Process design at Kalgoorlie is tailored specifically to Mt Weld’s monazite-hosted mineralogy, reducing reliance on generic Chinese flowsheets.
- Onsite cracking and leaching will shorten logistics chains by exporting higher-value intermediate products instead of bulk concentrate.
- Concentrator and hydrometallurgical upgrades are being sequenced to avoid disrupting current ore delivery from Mt Weld.
- For other rare earth projects, Lynas’ model reinforces the need to integrate mine, concentrator and chemical plant design.
Our Take
Lynas Rare Earths sits within a relatively small subset of our 1093 Mining stories that focus on rare earths and critical minerals, signalling that Australian-listed exposure to this commodity class is still concentrated in a few producers and developers.
The related item on QuantX Labs’ government-backed real-time mine-site rare earths sensor suggests that Australian rare earths operations like those of Lynas are likely to see increasing pressure – and opportunity – to adopt in situ grade-control and processing-optimisation technologies.
Across the 135 keyword-matched pieces on rare earths and critical minerals in our database, Australia features frequently as a host country, reinforcing that operators such as Lynas are central to Canberra’s strategy to anchor non-Chinese supply chains for magnet and battery materials.
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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