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
    Contract Award

    CIMIC’s full Thiess ownership: contract mining strategy and risks for operators

    July 1, 2026|

    Reviewed by Joe Ashwell

    CIMIC’s full Thiess ownership: contract mining strategy and risks for operators

    First reported on International Mining – News

    30 Second Briefing

    CIMIC Group has bought the remaining stake in Thiess Group for A$1.18 billion, regaining 100% ownership after selling 50% into a joint venture with funds advised by Elliott Advisors in 2020 and then progressively buying back additional interests. The deal consolidates one of the world’s largest contract miners under a single balance sheet, giving CIMIC full control over Thiess’ open-pit and underground portfolios across coal, metals and minerals. For mine owners, it signals a more integrated offering on life-of-mine contracts, fleet renewal and decarbonisation initiatives.

    Technical Brief

    • Transaction consideration is A$1.18 billion cash for the remaining Thiess equity interest.
    • Deal structure unwinds the 2020 joint venture with funds advised by Elliott Advisors.
    • Progressive buybacks since 2020 indicate staged de‑risking of ownership and balance sheet exposure.
    • Full consolidation allows unified capital allocation across Thiess’ open‑pit and underground mining contracts.
    • Single ownership simplifies contracting structures for clients seeking bundled mine development and operations packages.
    • Governance and risk management for large mining projects can now be standardised across the combined portfolio.
    • For owners, counterparty risk shifts to a single CIMIC‑backed balance sheet rather than a JV vehicle.

    Our Take

    CIMIC Group’s move to regain full control of Thiess comes after its other subsidiaries, Sedgman and Leighton Asia, picked up processing and construction work at Hindustan Zinc’s tailings recycling project, signalling that CIMIC is consolidating a vertically integrated mining services offering across design, build and operate phases.

    With Thiess now fully back in-house following the earlier 50% sell-down in 2020, CIMIC can more easily coordinate bidding and risk allocation across its mining and processing arms, which in our database often translates into bundled contracts on complex projects like tailings reprocessing and brownfield expansions.

    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

    Veyex nylon rollers at Gudai-Darri: reliability and load lessons for mine engineers
    Mining
    about 11 hours ago

    Veyex nylon rollers at Gudai-Darri: reliability and load lessons for mine engineers

    Veyex has trialled heavy-duty nylon conveyor rollers at Rio Tinto’s Gudai-Darri iron ore mine in Western Australia, where previous high-density polyethylene (HDPE) rollers were failing prematurely under high-tension loads. The case study covered two specific conveyor applications, with the nylon rollers subjected to extreme belt tensions and impact loading typical of large-scale iron ore handling. Results showed markedly improved roller durability and reduced maintenance interventions, signalling potential lifecycle and reliability gains for high-load overland and plant conveyors in similar hard rock operations.

    Suncor Cat AHS at Mildred Lake and Komatsu Mud Mode: integration notes for mine planners
    Mining
    1 day ago

    Suncor Cat AHS at Mildred Lake and Komatsu Mud Mode: integration notes for mine planners

    Suncor has commissioned its first Autonomous Operating Zone at Syncrude’s Mildred Lake oil sands mine, extending its autonomous haulage system deployment beyond the existing fleet of about 140 autonomous trucks already running at other Suncor sites. The new zone uses Cat AHS fleets under Suncor control (since late 2021) and is complemented by Komatsu AHS trucks at Base Plant operating with a dedicated “Mud Mode” to maintain traction and control in soft ground. For mine planners, this signals wider-scale AHS integration across multiple pits and variable ground conditions.

    Central Nevada Gold’s Mule Canyon acquisition: project and risk lens for engineers
    Mining
    2 days ago

    Central Nevada Gold’s Mule Canyon acquisition: project and risk lens for engineers

    Central Nevada Gold has completed a US$20 million acquisition of Newmont’s past‑producing Mule Canyon mine in Nevada, targeting a prefeasibility study and key permits in H2 2027 ahead of a potential 2028 construction decision. Mule Canyon previously produced about 500,000 oz gold at an average head grade of 3.8 g/t with ~94% metallurgical recovery, and comes with a database of 2,149 drill holes totalling over 335,000 metres across six mineralised zones over 2.5 km. The company plans an IPO as early as 2027 after a 20‑hole metallurgical and infill drilling programme to upgrade inferred resources and de‑risk the project.

    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.

    AllGeotechnicalInfrastructureHazardsEnvironmental