Historic Cornwall Mine's Value Rockets to $1.5 Billion Following Major Mineral Discovery
An ancient mining site in Cornwall has seen its estimated worth surge to over a billion dollars after extensive new surveys uncovered far greater quantities of critical metals than previously anticipated. London-listed Strategic Minerals announced on Thursday that the Redmoor tungsten-tin-copper-silver Project, located between Kelly Bray and Callington, contains nearly 50 percent more mineral ore compared to earlier assessments.
Transformational Resource Upgrade Extends Mine Life
The Redmoor project, operated by Strategic Minerals' wholly owned subsidiary Cornwall Resources, was already recognized as Europe's highest grade, undeveloped tungsten resource. However, the company revealed to the stock market that its latest exploration efforts have delivered what it describes as a "transformational uplift" in production capability. This significant enhancement could potentially extend the mine's operational life from 12 to an impressive 29 years.
Detailed analysis indicates the site now contains 31 percent more tungsten trioxide, 55 percent more tin, and 30 percent more copper than initial estimates suggested. In a groundbreaking development, silver has also been detected at the location for the very first time, adding further value to the resource.
Economic Valuation and Strategic Importance
Strategic Minerals issued an Updated Economic Sensitivity Analysis to the market, presenting a base case valuation for the Redmoor project at an estimated $1.54 billion after tax. Charles Manners, Strategic Minerals’ executive chair, praised the project team, stating: "I cannot speak highly enough about the exemplary project design and delivery by the CRL team. It is hard to find any comparable project that has delivered so much, in such a short time, for the amount spent, and with such positive results."
He also expressed gratitude for the support from Cornwall Council and the UK Shared Prosperity Fund, highlighting a grant in April 2025 that unlocked private sector investment. Manners emphasized that this development positions Redmoor and the UK as a leading Western World source of tungsten, crucial for modern technologies and the clean energy transition.
Decade-Long Exploration and Future Plans
The latest report culminates a decade of detailed minerals exploration activity in and around the Cornish mine, which has a rich history of extraction dating from Roman times through to the mid-1940s. Since 2016, Cornwall Resources has conducted comprehensive exploration centered on Redmoor, including:
- Borehole drilling programs
- Extensive soil sampling
- Advanced geophysical surveys
- Aerial survey techniques
Mark Burnett, Strategic Minerals’ executive director, confirmed the company will now "rapidly progress" to a prefeasibility study to test new production scenarios and optimize the operational model. He noted: "Redmoor is Europe’s highest grade, undeveloped, tungsten resource compared to other CRIRSCO-compliant projects, and amongst the highest grade globally. The company is committed to advancing Redmoor at pace."
Dennis Rowland, Cornwall Resources managing director, added that the exploration successfully confirmed previous findings and incorporated new datasets to identify additional mineralization zones. "These results alongside the significant improvements in metallurgical recovery for tungsten, and confirmation of recoverability of silver, have directly contributed to improved project economics," he stated.
The project has received support from the Cornwall and Isles of Scilly Good Growth Programme, funded by the UK Government’s UK Shared Prosperity Fund and managed locally by Cornwall Council. This initiative aims to unlock the future of Cornwall’s critical minerals sector, serving both as a socio-economic driver and a vital source of materials needed for technological advancement and sustainable energy solutions.
