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

    Kanmantoo underground for Hillgrove: 2026 mine plan and cost lens for engineers

    February 27, 2026|

    Reviewed by Joe Ashwell

    Kanmantoo underground for Hillgrove: 2026 mine plan and cost lens for engineers

    First reported on Australian Mining

    30 Second Briefing

    Hillgrove Resources’ Kanmantoo underground copper mine in South Australia has driven a sharp profit increase in 2025 on the back of higher copper production and improved unit costs as the operation ramps up. The mine is transitioning from its former open-pit to a fully underground layout targeting the Nugent and deeper Kanmantoo orebodies, with stoping and development ore feeding an upgraded on-site concentrator. Management is positioning Kanmantoo for a strong 2026, signalling further throughput increases and longer mine life, which will influence regional processing, power and tailings planning.

    Technical Brief

    • Transition from open-pit to underground reduces surface disturbance footprint and changes haulage and backfill logistics.
    • Mine planning now focuses on deeper extensions, requiring longer decline development and revised ventilation circuits.
    • Regional infrastructure planning must account for higher electrical load profiles from underground pumping and hoisting.
    • Tailings strategy is being revisited to align with extended mine life and higher milling throughput.
    • Similar Australian copper conversions from open-pit to underground are increasingly leveraging existing plants to defer capex.

    Our Take

    Copper items in our database increasingly feature Australian underground restarts rather than greenfield builds, suggesting Hillgrove Resources’ Kanmantoo underground strategy in South Australia is aligned with a lower-capex, faster-to-cashflow model that lenders and offtakers currently favour.

    Within the 272 copper‑tagged pieces in our coverage, South Australia appears less frequently than Western Australia or Queensland, which may give Kanmantoo outsized visibility with state agencies and infrastructure planners as they look to anchor regional copper supply heading into 2026.

    A 2025 profit uplift feeding into a ‘strong 2026 entry’ signals that Hillgrove could time Kanmantoo underground ramp‑up into a window when several higher‑cost copper operations in our database are facing grade decline, potentially improving pricing leverage for a well‑positioned Australian producer.

    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

    Flexco conveyor reliability tools: key maintenance takeaways for coal mines
    Mining
    about 5 hours ago

    Flexco conveyor reliability tools: key maintenance takeaways for coal mines

    Flexco is using the Queensland Mining & Engineering Exhibition in Mackay to showcase next‑generation conveyor reliability tools for coal operations facing tighter maintenance windows and labour shortages. The company is focusing on fast-install belt cleaners, condition‑monitoring hardware and data platforms that allow remote inspection of idlers, pulleys and splices without shutting down production. For mine operators, the pitch is higher conveyor availability on long overland and plant belts, reduced manual belt-walks, and more predictable shutdown planning in high‑throughput Queensland coal plants.

    Mining
    about 4 hours ago

    Tía María Komatsu AHS trucks: haul road and traffic design notes for mine engineers

    Southern Copper’s Tía María greenfield copper project in Arequipa will be the first mine in Peru to operate Komatsu autonomous haulage system (AHS) trucks, supplied and supported by Komatsu-Mitsui. CEO Julio Molina told Día1 de El Comercio that the deployment will use Komatsu’s state-of-the-art AHS platform, signalling a shift towards driverless haul fleets in the country’s large open pits. The move will require detailed redesign of haul roads, traffic management and dispatch systems to meet AHS requirements for berms, gradients and separation from manned equipment.

    Aclara’s Penco rare earths approval: project economics and design notes for engineers
    Mining
    about 5 hours ago

    Aclara’s Penco rare earths approval: project economics and design notes for engineers

    Aclara Resources has secured its Environmental Qualification Resolution for the Penco Module ionic clay rare earth project near Penco, 430 km south of Santiago, concluding a permitting process that ran for more than four years. The project is scoped to produce about 774 tonnes of rare earth oxides annually over 14 years, with a 2021 PEA outlining initial capital of $119 million, an after-tax NPV of $178 million at a 5% discount rate, a 23% IRR and a 4.7-year payback. Penco ore will ultimately feed Aclara’s planned commercial separation plant in Louisiana, supported by a Virginia Tech pilot facility producing both light and heavy rare earth oxides.

    Related Industries & Products

    Mining

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

    Construction

    Quality control software for construction companies with material testing, batch tracking, and compliance 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.

    AllGeotechnicalMiningInfrastructureMaterialsHazardsEnvironmentalSoftwarePolicy