The UK government is taking a more direct role in securing critical-mineral supplies after the National Wealth Fund agreed a financing package of up to £71 million for Tungsten West’s Hemerdon tungsten-tin mine in Devon, effectively completing the funding needed to restart one of Europe’s most strategically significant tungsten projects. The deal marks a notable shift in Britain’s approach to critical minerals. Rather than relying solely on grants, policy measures or private-sector investment, the government is combining equity ownership, debt financing and potential access to future tungsten production.
Government Takes Equity and Potential Offtake
Under the agreement, the National Wealth Fund will invest £36 million in equity at 36p per share, alongside a committed £25 million debt facility. A further £10 million accordion facility remains available but is currently uncommitted. Once completed, the investment is expected to give the National Wealth Fund approximately 7.42% of Tungsten West, together with the right to nominate a non-executive director.
The most strategically significant element may be the government’s exclusive negotiation period for potential offtake covering up to 50% of Hemerdon’s forecast tungsten production. That combination makes the transaction considerably more than a conventional mining-finance deal. The UK state will become a shareholder, provide debt capital and could ultimately secure a substantial portion of the mine’s future tungsten output. For a metal regarded as strategically important to defence, aerospace and advanced manufacturing, the implications extend well beyond the balance sheet of Tungsten West.
Why Hemerdon Matters to the UK
Tungsten is used in cemented carbides, cutting and drilling tools, high-temperature applications, aerospace components, defence equipment and precision industrial machinery. The global tungsten supply chain is heavily concentrated in China, particularly in mining and processing. Europe, meanwhile, has limited domestic primary production, leaving manufacturers exposed to international supply disruptions and geopolitical risks. Hemerdon therefore offers something that many European critical-mineral projects cannot yet provide: a previously developed brownfield mine with existing infrastructure and a relatively short pathway back to production.
Tungsten West has indicated that the financing required for the restart is now effectively complete. Restart testing has already produced concentrate, with initial production targeted for Q3 2026 and full-scale ramp-up planned for Q1 2027. If those milestones are achieved, Hemerdon could become one of the few Western tungsten projects capable of delivering meaningful new supply during the current decade. The restart is also expected to create approximately 350 direct jobs, adding an economic benefit to its strategic importance.
From Mining Finance to Industrial Policy
The structure of the Hemerdon deal could prove particularly important for the wider UK and European critical-minerals sector. Governments have traditionally supported mining projects through grants, guarantees, research programmes and regulatory assistance while leaving ownership, financing and commodity sales largely to private investors. Hemerdon represents a more interventionist approach.
The state is taking equity risk, providing debt and potentially securing physical access to production. That resembles industrial policy as much as conventional project finance. The rationale is straightforward. Strategically important mining projects can struggle to attract private capital because they often involve substantial technical risk, long development periods and uncertain commodity markets. Tungsten also has characteristics that can make financing difficult. The market is relatively small compared with major metals, pricing is less transparent than for exchange-traded commodities and producers often depend on specialised processing and long-term customer relationships.
Government participation can address several of these challenges at once. Equity provides long-term funding, debt support can strengthen financing certainty, while a potential offtake agreement can reduce marketing risk and improve visibility over future revenues.
Hemerdon Still Faces a Technical Test
For Tungsten West, the new funding removes a major obstacle, but it does not eliminate the operational challenges associated with restarting Hemerdon. The project has a complicated history. Previously operated as the Drakelands mine, Hemerdon experienced significant technical and financial difficulties before operations ceased. The current restart should therefore not be viewed simply as reopening an existing mine.
The investment case ultimately depends on whether Tungsten West can demonstrate that its revised processing systems, mine planning and operational controls can deliver reliable commercial performance. The next phase of the project will put that strategy to the test. The processing plant must achieve consistent throughput, while tungsten and tin recoveries need to meet expectations. Concentrate quality will also have to satisfy customers, and operating costs must remain sufficiently controlled to generate sustainable margins. Those factors will determine whether Hemerdon becomes a dependable strategic tungsten supplier or another difficult mine-restart story.
Potential Strategic Offtake
The proposed government offtake could nevertheless strengthen the project’s commercial position considerably. If negotiations result in the UK securing as much as 50% of forecast tungsten production, Hemerdon would become directly integrated into Britain’s strategic critical-minerals framework. Such an arrangement could provide greater supply certainty for downstream industrial and defence users while giving Tungsten West an anchor customer for a significant portion of its output.
The structure could also attract attention across Europe, where governments are looking for ways to reduce dependence on concentrated overseas sources of critical raw materials. While public financing for strategic mining projects is becoming more common, fewer deals combine direct government equity, debt support and potential commodity offtake rights. The Hemerdon transaction therefore offers a potentially important model for future critical-mineral investments.
A Possible Template for Other Critical Minerals
The UK’s involvement raises a wider question about how governments will finance strategically important mining projects in the years ahead. If direct state participation can help close the funding gap for tungsten, similar structures could potentially be considered for rare earths, lithium, graphite, antimony and other raw materials where domestic or European supply remains limited.
Public capital cannot compensate indefinitely for poor project economics or unresolved technical problems. A mine still needs to operate competitively and generate sustainable returns. Government participation can help commercially viable projects overcome the difficult transition from technical feasibility to actual production. That is now the challenge facing Hemerdon. The mine has secured the financing required for its planned restart. The UK government is becoming a shareholder and could become a major buyer of its tungsten. Initial production is targeted for Q3 2026, followed by full ramp-up in Q1 2027.
The funding question has largely been settled. The next test is operational: whether Tungsten West can turn that capital into consistent, commercially viable tungsten production. If successful, Hemerdon could become more than a revived British mine. It could serve as a blueprint for how the UK and other European governments use public capital to build resilient critical-mineral supply chains when private markets are unwilling to absorb the entire development risk.
