Geomechanics.io

  • Free Tools
Sign UpLog In

    Geomechanics.io

    Geomechanics, Streamlined.

    © 2026 Geomechanics.io. All rights reserved.

    Geomechanics.io

    CMRR-ioGEODB-ioHYDROGEO-ioQCDB-ioFree Tools & CalculatorsBlogLatest Industry News

    Industries

    MiningConstructionTunnelling

    Company

    Terms of UsePrivacy PolicyLinkedIn
    Projects
    Sustainability

    BHP rare earths assessment at Olympic Dam: project and water risks for engineers

    May 22, 2026|

    Reviewed by Tom Sullivan

    BHP rare earths assessment at Olympic Dam: project and water risks for engineers

    First reported on MINING.com

    30 Second Briefing

    BHP must, under a revised 78‑page Olympic Dam indenture agreement tabled in the South Australian parliament, assess within two years whether rare earths and other critical or strategic minerals such as neodymium and praseodymium can be commercially recovered from current waste streams. If BHP deems extraction technically or economically unviable, third parties must be given an opportunity to commercialise these minerals, while the framework also enables consideration of a A$4 billion copper refinery expansion and up to A$12.7 billion in further mine and concentrator upgrades by 2032. The pact additionally requires BHP to submit by May 2031 a plan to cease Great Artesian Basin groundwater extraction by May 2036, with a Port Augusta seawater desalination scheme being advanced to support a potential lift in South Australian copper output towards 650,000 tonnes per year by the mid‑2030s.

    Technical Brief

    • Revised Olympic Dam indenture spans 78 pages, replacing a nine-year-old legislative framework for the operation.
    • Orebody reportedly contains 131 additional minerals beyond copper, gold, silver and uranium, currently lost to waste.
    • Rare earths targeted include neodymium and praseodymium, used in high-strength permanent magnets for EVs and wind.
    • New framework sits within a copper investment pipeline of up to A$16.7 billion across South Australia.
    • Copper SA now integrates Olympic Dam, Prominent Hill and Carrapateena following BHP’s A$9.6 billion OZ Minerals acquisition.
    • Exploration at Oak Dam is being advanced as a potential fourth copper operation in the province.
    • BHP’s global copper production reached over 2 Mt in FY2025, a 28% increase in three years.
    • Company guidance for FY2026 copper output is 1.9–2.0 Mt, per BHP’s published copper growth outlook.

    Our Take

    The presence of 131 additional minerals currently discarded from the Olympic Dam orebody suggests that any rare earths flowsheet would likely be bolt‑on to existing copper‑gold‑uranium processing, raising tailings complexity and tying directly into the filtered tailings and water‑recovery work BHP is pursuing with Rio Tinto in the Tailings Management Consortium coverage.

    South Australia’s record copper‑driven royalty intake highlighted in the 20 May 2026 article gives the state government strong fiscal incentive to back a A$4 billion‑scale refinery expansion and rare earths circuit at Olympic Dam, which could in turn accelerate the planned overhaul of the state’s mining legislative regime after a nine‑year gap.

    Geotechnical Software for Modern Teams

    Centralise site data, logs, and lab results with GEODB-io, CMRR-io, and HYDROGEO-io.

    No credit card required.

    • Save and export unlimited calculations
    • Advanced data visualisation
    • Generate professional PDF reports
    • Cloud storage for all your projects

    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.

    Related Articles

    MAX Power–Sprott C$25m funding: Lawson hydrogen drilling lens for engineers
    Mining
    about 10 hours ago

    MAX Power–Sprott C$25m funding: Lawson hydrogen drilling lens for engineers

    MAX Power Mining has secured C$25 million from Eric Sprott via a private placement of 12.5 million units at C$2.00, each with a warrant at C$2.75, to accelerate drilling at its Lawson natural hydrogen system in Saskatchewan’s 475 km-long Genesis Trend. The company has selected three initial drill targets using 3D seismic to pinpoint structurally optimal zones for natural hydrogen and helium flow, volume and concentration, and will run a 2D seismic programme along the trend to refine additional prospects. For geoscientists and drilling engineers, the work aims to validate what MAX Power calls the world’s first large-scale commercial natural hydrogen discovery.

    Fortescue–XCMG ultra-class battery trials: duty-cycle insights for mine engineers
    Mining
    about 11 hours ago

    Fortescue–XCMG ultra-class battery trials: duty-cycle insights for mine engineers

    Testing of XCMG’s two super large battery electric prototypes for Fortescue – the XC9260BEWL wheel loader and XC9260BEWD wheel dozer – is continuing at the OEM’s Xuzhou proving grounds in China following their official unveiling in February 2026. The ultra-class units are undergoing performance and durability trials under load and duty cycles representative of Pilbara iron ore operations before being shipped to Western Australia. Results will inform battery pack configuration, thermal management and charging strategies for deployment in high-temperature, high-dust mine environments.

    Collahuasi permit setback: desalination and water-supply risks for mine planners
    Mining
    about 12 hours ago

    Collahuasi permit setback: desalination and water-supply risks for mine planners

    A Chilean environmental court has annulled the permit for Collahuasi’s $3.2 billion desalination plant, forcing a reassessment of the seawater system that pumps desalinated water nearly 200 km from the Pacific coast to the 4,600‑metre‑elevation mine, which produced over 404,000 tonnes of copper in 2025. The decision affects an expansion intended to add 20 years of mine life and cut reliance on continental water, even though contractor Techint completed the pumping system in April. Industry leaders, including Chilean Mining Chamber president Manuel Viera, cite the case as evidence of a “cursed” regime where a single project can need 500+ permits, raising schedule and cost risk for large‑scale desalination and water‑supply infrastructure.

    Related Industries & Products

    Mining

    Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.

    CMRR-io

    Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.

    HYDROGEO-io

    Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.

    GEODB-io

    Centralised geotechnical data management solution for storing, accessing, and analysing all your site investigation and material testing data.

    AllGeotechnicalInfrastructureHazardsEnvironmental