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

    Fireweed’s $44M raise for Macpass and Mactung: project and infrastructure lens for engineers

    March 30, 2026|

    Reviewed by Joe Ashwell

    Fireweed’s $44M raise for Macpass and Mactung: project and infrastructure lens for engineers

    First reported on MINING.com

    30 Second Briefing

    Fireweed Metals has secured a C$61.5 million non-brokered placement from JX Advanced Metals and the Lundin Family Trusts to advance its Macpass zinc-lead-silver and Mactung tungsten projects in Yukon, plus the early-stage Gayna zinc-germanium-gallium project in the Northwest Territories. Macpass currently hosts 56 million indicated tonnes at 5.49% zinc, 1.58% lead and 24.2 g/t silver, while nearby Mactung holds 41.5 million indicated tonnes at 0.73% WO₃, with feasibility work targeting completion in early 2027. Recent backing also includes $15.8 million from the US Department of Defense and up to C$12.9 million from Canada’s Critical Minerals Infrastructure Fund to connect Macpass to the road network.

    Technical Brief

    • Mactung lies 13 km north of Macpass, enabling potential shared camp, access and services infrastructure.
    • Macpass is ~300 km northeast of Whitehorse, so road-connection funding is critical for haulage and logistics.
    • Macpass indicated resources contain 6.7 billion lb Zn, 1.9 billion lb Pb and 43.5 Moz Ag.
    • Additional Macpass inferred resources add 5.5 billion lb Zn, 2.2 billion lb Pb and 39.4 Moz Ag.
    • Mactung indicated resources total 301.6 million kg WO₃, with a further 72.1 million kg inferred.
    • Gayna project, ~180 km north of Macpass, has 3,800 m of initial drilling under analysis.
    • Lundin Family Trusts now hold ~23% of Fireweed, signalling strong sponsor backing for long-lead northern infrastructure.

    Our Take

    JX Advanced Metals appears both here with Fireweed Metals and in our recent coverage of Lundin Mining’s move to 75% of the Caserones copper-molybdenum mine, signalling that JX is quietly consolidating long-life exposure to multiple critical metals streams across the Americas rather than single-asset bets.

    With Macpass and Mactung carrying substantial zinc, lead, silver and WO₃ inventories in Canada’s North, Fireweed is positioning into the same ‘large, long-life base metals’ space that Lundin Group companies have targeted in Chilean copper (e.g. Caserones/Los Helados), which typically attracts patient capital but also demands robust logistics and power solutions.

    The combination of US Department of Defense and Canada’s Critical Minerals Infrastructure Fund support around Mactung and Macpass suggests that tungsten and zinc from Yukon–NWT are being treated as strategic supply options, which could give Fireweed leverage in future offtake and infrastructure negotiations compared with non-subsidised peers in our database.

    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

    Mining
    about 14 hours ago

    Safeguarding conveyor performance: proactive maintenance lessons for mine engineers

    Safeguarding conveyor performance in mining and mineral processing, MATO Products sales engineer Keletso Mabula advocates comprehensive conveyor assessments focused on belt cleaners, carryback control and component wear. Proactive inspection of scraper alignment, blade tension, spillage patterns and chute loading conditions is positioned as essential to sustaining throughput and reducing unplanned stoppages on high‑tonnage overland and plant conveyors. The approach emphasises structured condition monitoring and timely maintenance interventions rather than reactive repairs once belt mistracking, excessive dust or material build-up have already escalated.

    Mining
    about 15 hours ago

    MinRes Bald Hill lithium mine restart: contracting and planning notes for engineers

    Mineral Resources (MinRes) is restarting operations at its 100%-owned Bald Hill lithium mine in Western Australia after what it describes as a significant and sustained recovery in lithium prices. The restart follows several months of planning to re-establish safe operating procedures and production systems at the site, located about 50 km from Kambalda in the Eastern Goldfields. For mine planners and contractors, the move signals renewed demand for contract mining, crushing and haulage capacity tied to spodumene output in the region.

    UQ coarse particle processing program: design and retrofit insights for mine engineers
    Mining
    about 24 hours ago

    UQ coarse particle processing program: design and retrofit insights for mine engineers

    The University of Queensland’s Collaborative Consortium for Coarse Particle Processing Research is entering a second five‑year phase to scale up coarse particle flotation technologies that allow recovery of particles up to several millimetres, reducing grinding energy and water use. Phase I delivered the JKHFmini laboratory rig and plant trials with Eriez HydroFloat and FLSmidth REFLUX Flotation Cell units on copper and gold ores, targeting coarser grind sizes than conventional circuits. The renewed program will expand pilot‑scale testing and integrated circuit modelling, with direct implications for comminution circuit design, tailings management and brownfield plant retrofits.

    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