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    Penouta mine restart approvals: supply, plant and offtake lens for engineers

    July 2, 2026|

    Reviewed by Joe Ashwell

    Penouta mine restart approvals: supply, plant and offtake lens for engineers

    First reported on MINING.com

    30 Second Briefing

    Energy Transition Minerals has secured Xunta de Galicia approval to transfer the Section C concession for the 282-hectare Penouta tin-tantalum-niobium mine, giving it control of more than 76 million tonnes of NI 43-101 measured and indicated resources and the existing €28 million open-pit, plant and infrastructure. The company plans to restart production using the current processing plant tailored to Penouta ore and has signed an offtake memorandum of understanding with commodity trader Traxys for concentrate sales. Penouta would become the EU’s only primary tantalum and niobium source, directly supporting Critical Raw Materials Act supply-diversification targets.

    Technical Brief

    • Xunta de Galicia’s Section C concession transfer resolution formally installs ETM’s Spanish subsidiary as mining-rights holder.
    • Approval is the final regional step in rescuing Penouta from Strategic Minerals Spain’s 2024 insolvency.
    • Historic capex of about €28 million delivered an open pit, processing plant and associated site infrastructure.
    • ETM plans to retain experienced local staff and prioritise further local hiring in Viana do Bolo.
    • Offtake memorandum of understanding is with Traxys, covering sale of Penouta tin–tantalum–niobium concentrates.
    • Penouta is positioned as one of very few EU sites capable of near‑term strategic metals output.
    • ETM’s wider portfolio includes Western Europe, North America and Greenland, where Kuannersuit licence renewal was recently refused.

    Our Take

    With over 80% of global niobium supply coming from Brazil and the EU’s Critical Raw Materials Act aiming to cap single-country dependence at 65% by 2030, a functioning Penouta mine in Galicia would give European buyers such as Traxys a strategically located alternative source of niobium and tantalum feedstock.

    Penouta’s certified 76 Mt resource over 282 hectares positions it as one of the more substantial critical-mineral assets in Western Europe in our database, meaning any offtake structure ETM agrees could become a reference point for pricing and contract terms for future EU-based tantalum and niobium projects.

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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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