BHP steel decarbonisation trials: retrofit pathways and risks for mine planners
Reviewed by Joe Ashwell

First reported on Australian Mining
30 Second Briefing
BHP is pushing ahead with lower-emission steelmaking, reporting progress across industrial trials and technology partnerships with 13 major steelmakers that together produce about a quarter of global steel. The programme spans blast furnace and direct reduced iron routes, including pilots using higher-grade iron ore, biomass and hydrogen-based reductants to cut coke rates and CO₂ intensity per tonne of hot metal. Management notes that high capital costs and weaker steel margins are slowing sector-wide investment, making scalable retrofits to existing furnaces a key near-term focus for miners and mills.
Technical Brief
- For other miners and mills, retrofit-friendly measures offer near-term abatement without full asset replacement.
Our Take
BHP’s work with 13 steelmakers on decarbonisation sits alongside its recent battery-electric haul truck trials at the Jimblebar iron ore mine, signalling that the company is attacking Scope 1 and Scope 3 emissions in parallel across both mining and downstream steel use.
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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