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    North American Critical Manganese Alliance: supply chain implications for mine planners

    July 14, 2026|

    Reviewed by Joe Ashwell

    North American Critical Manganese Alliance: supply chain implications for mine planners

    First reported on MINING.com

    30 Second Briefing

    Canadian Manganese Company, GreenMet, AmForge and Flash Metals USA have formed the North American Critical Manganese Alliance to build the first fully integrated Canada–US manganese supply chain, anchored by CMC’s Woodstock carbonate deposit in New Brunswick, described as North America’s largest known manganese carbonate system. The Canadian platform will focus on Woodstock mine development, beneficiation and hydrometallurgical refining to intermediate manganese products, while a US platform in West Virginia will handle specialty processing, battery-grade chemicals, alloys and defence/aerospace materials. For engineers, this signals potential new North American sources of high‑purity manganese feedstock for cathode materials and specialty steels.

    Technical Brief

    • NACMA’s industrial chain explicitly spans extraction, primary refining, specialty processing and advanced manufacturing across Canada and the US.
    • Canadian Manganese’s Woodstock carbonate resource is positioned as the long-term feedstock base for all downstream plants.
    • New Brunswick operations are planned to include mineral beneficiation plus hydrometallurgical circuits to produce intermediate manganese products.
    • West Virginia facilities are earmarked for advanced manganese chemicals, battery materials and specialty alloys production.
    • Defence and aerospace materials, including additive manufacturing feedstocks, are specifically targeted within the US processing platform.
    • GreenMet’s role is to integrate private capital, government support and critical minerals developers into one financing conduit.

    Our Take

    Manganese appears in only a small subset of the 130 critical-minerals keyword pieces in our database, so a dedicated North American alliance around it signals that battery-grade Mn is moving closer to the strategic prominence already seen for cobalt and nickel.

    Locating Canadian Manganese Company’s Woodstock project within a North American offtake-focused grouping gives it a potential route to downstream US processors, which can be important for securing financing in a market where most current high-purity manganese supply is still imported from outside the region.

    The inclusion of US Vanadium alongside manganese-focused firms links this alliance to a broader critical-minerals push similar to the Orion Critical Mineral Consortium–Glencore transaction in the DRC, where multi-metal portfolios are being used to de-risk supply chains for energy-transition materials.

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    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.

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