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
    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

    Record WA resource sector spend: project pipeline signals for mine and geotech teams
    Mining
    about 2 hours ago

    Record WA resource sector spend: project pipeline signals for mine and geotech teams

    Record spending from Western Australia’s resources sector has delivered a $166 billion economic contribution, with mining and energy activity now supporting about two in every five jobs across the state. The sector’s direct and indirect employment footprint spans iron ore, LNG, gold and critical minerals operations, with flow-on work for civil contractors, drill and blast crews, maintenance trades and port logistics. For geotechnical and mining engineers, the scale of investment signals continued demand for large open-pit expansions, tailings and waste facility design, and brownfield infrastructure upgrades.

    Resolute–Nimba gold JV in Guinea: project pipeline and resource lens for mine planners
    Mining
    about 2 hours ago

    Resolute–Nimba gold JV in Guinea: project pipeline and resource lens for mine planners

    Resolute Mining has signed a Memorandum of Understanding with Nimba Mining Company, a 100% Guinean state-owned entity, to co-develop gold projects in one of West Africa’s most prospective gold belts, under the oversight of Guinea’s Ministry of Mines and Geology. The partnership covers joint mineral resource assessment, detailed geological studies and frameworks for potential large-scale gold production, aligned with the State’s Simandou 2040 Programme. Resolute views Guinea as a candidate for its fourth mine, while NMC aims to increase local content in the national mining ecosystem.

    Metso SX-EW for Southern Peru Copper: design and operations notes for engineers
    Mining
    about 2 hours ago

    Metso SX-EW for Southern Peru Copper: design and operations notes for engineers

    Metso has signed a major agreement to deliver its modular VSF® solvent extraction and electrowinning (SX-EW) technology to Southern Peru Copper Corporation, one of the world’s largest copper producers. The package is expected to include Metso’s VSF® SX settlers, mixer–settlers and EW cells, integrated with process control systems to produce high-purity copper cathode from low-grade leach solutions. For process and project engineers, the deal signals continued uptake of large-scale SX-EW circuits in Peru’s heap leach operations, with implications for reagent management, phase disengagement design and long-term cathode quality control.

    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.