Cornish Metals (AIM: TIN) has secured a $210 million bond financing that moves the company closer to restarting the historic South Crofty tin mine in southwestern England after decades of failed revival attempts. The deal marks a watershed moment for the UK’s domestic mining sector, which has lacked tin production since the late 1990s.
The six-year bonds carry a fixed 13.5% annual coupon rate, and the offering attracted strong demand from investors in Europe, North America, and other international markets. The transaction signals growing global investor confidence in the United Kingdom’s critical minerals sector.
Figure 1: Cornish Metals secured a $210 million bond [TIN]
Why the World Needs South Crofty Now
Tin is classed as a critical mineral by the UK government, and its importance for building wind turbines, solar panels, and electric vehicles means global demand for the metal is forecast to increase at a faster rate than supply. The revival of domestic production directly addresses a strategic supply gap that the UK and its allies currently face.
Currently, there is no tin mining in Europe or North America. China, Myanmar, and Indonesia dominate the global market, producing two-thirds of the world’s tin. South Crofty’s restart would position the UK as a significant Western-aligned source of this increasingly critical commodity.
Tin prices climbed almost 40% in 2025 and have gained another 34% this year, approaching $54,000 per tonne. The sharp appreciation in tin’s value further strengthens the economic case for bringing South Crofty back into production.
Figure 2: South Crofty Tin Mine [Cornish Metals/Facebook]
Meet the Players Driving Britain’s Mining Revival
Cornish Metals (AIM: TIN)
Cornish Metals, the company leading the revival effort, is headquartered in Redruth but has its roots in the United States. The firm was known initially as Strongbow Exploration, based in Vancouver, before acquiring the rights to South Crofty in 2016. It was later rebranded to Cornish Metals in 2020 and listed on London’s AIM stock exchange in 2021, raising capital specifically to support mineral exploration and development in Cornwall.
Key figures and stakeholders include:
- Don Turvey – Chief Executive Officer, Cornish Metals
- UK National Wealth Fund (NWF) – Government-backed institutional investor
- Ian Brown – Head of Banking and Investment, National Wealth Fund
- US Export-Import Bank – Potential US government financing partner
- UK Chancellor Rachel Reeves – Government spokesperson on the investment
Don Turvey, the chief executive of Cornish Metals, said: “Tin is a critical mineral for the clean energy transition, essential to electronics, electric vehicles and renewable infrastructure. By reviving domestic production at South Crofty, we’re not only creating over 300 direct jobs but also supporting many more across local supply chains and regional businesses.”
Ian Brown, the head of banking and investment at the national wealth fund, said: “Cornish Metals have made excellent progress as they work towards reopening South Crofty. Our financing is designed to help them crowd further investment into the region, bringing skilled, year-round opportunities, and driving local growth.”
UK Chancellor Rachel Reeves said: “Growth is this government’s number one mission, and we’re going further and faster to kickstart our economy so that we can put more money in people’s pockets. This is just the kind of investment that will help us do that, not only supporting the growth of the Cornish mining sector but creating high-quality jobs and opportunity for the region and beyond.”
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Cornwall: The Ground Beneath the Global Supply Chain
Cornwall boasts some of the world’s highest-grade tin deposits, with South Crofty expected to produce 49,310 tonnes of the metal ore over the mine’s 14-year life. The South Crofty site sits in central Cornwall, in the far southwest of England, a region with a mining heritage stretching back centuries.
While the South Crofty mine is predicted to have a 14-year life, Cornish Metals’ mining licence runs until 2071, allowing for development of 26 former tin mines spread across 1,490 hectares. The scale of the land holding suggests the project carries long-term strategic significance well beyond the initial restart.
From Government Pledge to $210M Bond Close
Cornish Metals announced the $210 million bond financing on 7 May 2026. The deal arrives at a point when global tin markets are surging, investor appetite for critical minerals is at a high, and the UK government is actively pursuing domestic supply chain resilience.
In January 2025, the UK National Wealth Fund announced a £28.6 million direct equity investment into Cornish Metals to help finance the re-opening of South Crofty tin mine, creating more than 300 direct local jobs. The latest $210 million bond round builds substantially on that earlier government-backed commitment.
In February, the company also received a non-binding letter of interest from the US Export-Import Bank for up to $225 million tied to future tin concentrate exports to the US. The sequence of financing events over the past 18 months reflects an accelerating push toward a final investment decision.
How the Money Stacks Up and What Comes Next
South Crofty operated for more than 400 years before low metal prices forced its closure in 1998. Several companies later attempted to revive the mine without success before Cornish Metals acquired the project in 2016. Cornish says South Crofty is the highest-grade tin deposit not currently in production.
The financing comes amid a sharp rally in tin prices driven by rising demand tied to artificial intelligence infrastructure and electronics manufacturing. The AI sector’s rapid expansion has increased demand for semiconductors and circuit boards, both of which rely heavily on tin for soldering and component assembly.
Chief executive Don Turvey said the financing means Cornish “expect[s] to be fully funded” and on track to make a final investment decision on South Crofty this summer. A positive final investment decision would trigger the formal construction and development phase of the project.
The broader financial structure of the project now includes the following components:
- $210 million – Six-year fixed-rate bonds at 13.5% annual coupon, from international investors
- £28.6 million – Direct equity investment from the UK National Wealth Fund (January 2025)
- Up to $225 million – Non-binding letter of interest from the US Export-Import Bank, tied to tin concentrate exports
Turvey said: “Our focus remains on delivering long-term, sustainable value safely, responsibly, and with deep roots in the community.” The company maintains that community engagement and environmental responsibility will form a central part of the mine’s operating model.
Today, Cornish Metals has a market value of around C$170 million, equivalent to roughly £92 million, with its share price up 28 per cent over the past year. The bond financing, if followed by a positive final investment decision this summer, positions the company to transition from developer to producer within the next few years.
Sources
- https://investors.cornishmetals.com/announcements/7527285
- https://www.mining.com/cornish-metals-secures-210m-to-fund-uk-tin-mine-revival/
- https://www.thechemicalengineer.com/news/uk-government-backs-cornwalls-tin-mining-revival-with-286m-investment/
Disclaimer:This article draws on publicly available sources, official company announcements, and statements from named individuals. It is intended for informational purposes only and does not constitute financial, investment, or legal advice. Readers should conduct their own research before making any investment decisions. The views and statements of individuals quoted in this article are their own. While every effort has been made to ensure accuracy, the information contained herein may be subject to change following the original publication date.
Last modified: May 10, 2026
