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    Tungsten West–Elmet $1.8bn Hemerdon offtake: project risk and restart lens for engineers

    September 23, 2026|

    Reviewed by Tom Sullivan

    Tungsten West–Elmet $1.8bn Hemerdon offtake: project risk and restart lens for engineers

    First reported on MINING.com

    30 Second Briefing

    Tungsten West has signed an eight-year binding offtake agreement with US-based Elmet Technologies for 1,000 tonnes per annum of contained WO₃ from the Hemerdon tungsten-tin mine in Devon, valued at over £1.4 billion at current prices. The contract secures a long-term mine-to-market route into US and UK tungsten processing and manufacturing supply chains, alongside the UK National Wealth Fund’s investment of up to £71 million and its exclusive talks to procure up to 50% of Hemerdon’s annual tungsten output. For operators and project financiers, this combination of state backing and locked-in offtake materially de-risks Hemerdon’s restart and expansion plans.

    Technical Brief

    • Binding offtake term is fixed at eight years, providing a defined revenue horizon for Hemerdon’s restart plan.
    • Agreement is with Elmet Technologies, a vertically integrated US tungsten products and advanced materials manufacturer.
    • Transaction value is quoted at over £1.4 billion, benchmarked to current WO₃ prices and FX rates.
    • UK National Wealth Fund commitment is “up to £71 million” equity in Tungsten West, signalling state-backed capex support.
    • UK Government is in exclusive negotiations to procure up to 50% of Hemerdon’s annual tungsten output.
    • Hemerdon has historical production pedigree, having supplied tungsten for UK military use in both World Wars.
    • Tungsten West confirms “production now underway”, implying commissioning of the Hemerdon mineral processing facility has commenced.
    • UK Minister for Reindustrialisation explicitly links Hemerdon output to defence and clean energy supply chains in the UK and US.

    Our Take

    The UK National Wealth Fund’s option to procure up to 50% of Hemerdon’s tungsten, combined with Elmet Technologies’ long-term offtake, effectively pre-allocates most of the mine’s future output, which is unusual in our tungsten coverage and likely to support more aggressive restart and expansion planning by Tungsten West.

    Earlier 2026 pieces in our database show Tungsten West already committing to a new Komatsu fleet and TOMRA XRT sorting with Deep Learning at Hemerdon, so this US–UK offtake structure with Elmet and the government-backed NWF now completes a vertically aligned chain from pit to advanced tungsten products in North America and Europe.

    Among tungsten and tin project stories in our mining corpus, Hemerdon stands out as one of the few European assets with both state-backed financing and a multi‑billion‑dollar offtake, signalling that UK and US buyers are willing to pay for security of supply rather than rely on lower-cost but higher‑risk sources in Asia.

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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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