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    Manganese X US patent: purification and Battery Hill PFS insights for engineers

    April 15, 2026|

    Reviewed by Joe Ashwell

    Manganese X US patent: purification and Battery Hill PFS insights for engineers

    First reported on MINING.com

    30 Second Briefing

    Manganese X Energy has secured a US patent for its proprietary manganese sulphate purification technology, extending IP protection already accepted in South Africa and with further applications filed in Canada, Mexico and Australia. The patent is intended to support development of the 12.2 km² Battery Hill project in New Brunswick, which hosts a historically reported 194 million tonnes of manganese carbonate across five zones and is now in pre-feasibility assessing multiple processing routes. Shares rose over 9% to C$0.12, valuing the company at C$25.8 million.

    Technical Brief

    • Purification technology targets high-purity manganese sulphate suitable for lithium-ion battery cathode precursor production.
    • CEO Martin Kepman frames the process as enabling a “secure and scalable domestic supply chain” for MnSO₄.
    • Product is aimed at EV and stationary energy storage sectors, where battery-grade impurity limits are stringent.
    • Battery Hill comprises five distinct manganese zones within the 12.2 km² project footprint in New Brunswick.
    • Historical reporting cites 194 Mt of manganese carbonate, implying large-scale feedstock for sulphate conversion.
    • Current pre-feasibility is explicitly comparing “multiple processing pathways” to balance metallurgical recovery against project economics.
    • For other carbonate-hosted manganese deposits, similar proprietary purification steps could de-risk qualification with cathode manufacturers.

    Our Take

    With a sub-C$30 million market capitalisation, Manganese X is much smaller than most manganese producers covered in our Mining stories, which typically means the patent could have an outsized impact on its strategic options, from offtake negotiations with North American battery makers to potential JV interest from larger manganese players in regions like South Africa or Australia.

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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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