Latrobe Magnesium’s Hazelwood plant: mix design implications for engineers
Reviewed by Tom Sullivan

First reported on Australian Mining
30 Second Briefing
Latrobe Magnesium has produced its first sustainable magnesium oxide at a demonstration plant in Hazelwood North, Victoria, using proprietary technology to extract magnesium from Latrobe Valley brown coal fly ash. The process targets commercial production of both magnesium metal and supplementary cementitious material (SCM)-grade by-products, aiming to replace imported magnesia and reduce cement clinker content. For geotechnical and concrete practitioners, locally sourced MgO and SCM from waste ash could alter binder specifications, shrinkage control strategies, and durability mix designs in eastern Australia.
Technical Brief
- Similar ash-to-binder schemes at other coal basins would depend heavily on local ash mineralogy and logistics constraints.
Our Take
Magnesium oxide appears only sparsely in our Materials coverage compared with iron ore, lithium and gold, so Latrobe Magnesium’s Hazelwood North demonstration plant positions the Latrobe Valley as an outlier Australian hub for this specialty material rather than a mainstream bulk commodity play.
Because the Latrobe Valley is a legacy power-generation region, a magnesium oxide project there can potentially leverage existing industrial infrastructure and workforce, which often shortens ramp-up timelines and lowers capex intensity relative to greenfield sites in remote mining regions of Australia.
Among the 374 tag-matched Product/Sustainability/Projects pieces, most Australian sustainability stories centre on battery metals; a magnesium oxide demonstration plant in Victoria suggests operators see scope for critical-materials branding and low-carbon process claims beyond the usual lithium and nickel narratives.
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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