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
    AllGeotechnicalMiningInfrastructureMaterialsHazardsEnvironmentalSoftwarePolicy
    Projects
    Sustainability

    Glencore’s Horne smelter talks: emissions, capex and closure risk for mine planners

    January 30, 2026|

    Reviewed by Tom Sullivan

    Glencore’s Horne smelter talks: emissions, capex and closure risk for mine planners

    First reported on MINING.com

    30 Second Briefing

    Glencore remains deadlocked with Quebec over the future of its nearly 100-year-old Horne copper smelter in Rouyn-Noranda, where arsenic emissions must be cut from current levels to 45 ng/m³ by March and 15 ng/m³ from 2027—still five times the provincial standard. The company is weighing a US$200 million modernisation to meet the 15 ng/m³ target but is demanding an 18‑month transition period and guarantees against tighter future limits before committing. Closure would also threaten the Canadian Copper Refinery in Montreal, which relies on Horne’s 210,000 t/y copper and precious metals output, and comes amid an authorised class action over historical emissions.

    Technical Brief

    • The company is tying any investment decision to the duration and terms of the next ministerial authorisation.
    • Horne and Montreal’s Canadian Copper Refinery together constitute Canada’s only fully integrated copper smelting–refining chain.
    • Horne currently processes copper concentrates and outputs about 210,000 tonnes per year of copper plus precious metals.
    • Two Quebec unions have publicly pressed Premier François Legault to conclude an agreement before his planned resignation.
    • For other smelting operations, the case underlines how regulatory predictability directly conditions large‑scale emissions‑control CAPEX decisions.

    Our Take

    Glencore’s need to justify roughly $200–300 million of emissions upgrades at the Horne copper smelter comes as our recent coverage shows its copper output under pressure from weaker grades elsewhere, which may limit appetite for non‑essential capex but also raises the strategic value of keeping North American refining capacity online.

    The arsenic limits being negotiated in Quebec are materially tighter than legacy norms for older smelters, signalling that other ageing copper and precious‑metals facilities in Canada could face similar retrofit-or-closure choices as provincial regulators move closer to health-based standards.

    With copper prices recently highlighted in our database as underpinning one of the strongest earnings outlooks for diversified miners, Glencore has more pricing headroom than in past downturns to absorb a phased 18‑month transition at Horne, which may strengthen Quebec’s hand in insisting on the 2027 arsenic target rather than long deferrals.

    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

    ICMM mining GHG dataset: value-chain insights and key takeaways for engineers
    Mining
    about 9 hours ago

    ICMM mining GHG dataset: value-chain insights and key takeaways for engineers

    ICMM has released a Global Mining & Metals Greenhouse Gas Emissions Dataset and insights report showing that extraction of minerals critical for renewable energy technologies and sustainable development contributes a relatively small share of global GHG emissions. The dataset aggregates Scope 1 and 2 emissions from mining and metals operations worldwide and distinguishes them from downstream processing and end-use sectors such as power generation and transport. ICMM positions the tool to support more accurate value-chain accounting, scenario analysis and decarbonisation planning for commodities like copper, nickel, lithium and rare earths.

    Mining
    about 9 hours ago

    Epiroc–DYWIDAG Australia ground support JV: design notes for deep mines

    Epiroc has signed its first ground support partnership in Oceania and Indonesia with DYWIDAG Australia, giving it wider distribution for products such as rock bolts, mesh and dynamic ground support systems in hard‑rock underground mines. The agreement targets high-stress, deep mining environments in Australia and Indonesia, where squeezing ground, seismicity and corrosion demand integrated support packages rather than standalone consumables. For operators, the deal signals broader local availability, shorter lead times and potentially more standardised support designs across multi-mine portfolios in the region.

    Mining
    about 9 hours ago

    Fortescue Solomon Airport solar farm: Real Zero implications for mine power design

    Construction has commenced on Fortescue’s 440 MW Solomon Airport solar farm in the Pilbara, set to be Western Australia’s largest solar development and supplying about one-third of the solar capacity the company says it needs to reach its Real Zero emissions target. The project will feed Fortescue’s nearby iron ore operations, reducing reliance on gas and diesel generation across the Solomon power network. For mine planners and electrical engineers, this scale of behind-the-fence renewables will drive changes in load management, network stability design and contingency planning for remote operations.

    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.