Cornish Metals Regulatory News (CUSN)

CORNISH METALS HOSTS HER ROYAL HIGHNESS THE PRINCESS ROYAL AT SOUTH CROFTY

Vancouver, May 8th, 2025

Cornish Metals Inc. (AIM/TSX-V: CUSN) ("Cornish Metals" or the "Company"), a mineral exploration and development company focused on advancing its 100% owned and permitted South Crofty tin project in Cornwall, United Kingdom, is pleased to announce that on 6 May 2025, the Company hosted Her Royal Highness The Princess Royal at South Crofty where a plaque was unveiled, re-opening New Cook's Kitchen ("NCK") shaft.

During the visit, The Princess Royal had tours of the:

· Workshop, consisting of a brief on the geology of South Crofty

· Water Treatment Plant, which included an overview of the treatment process

· Underground mine, including travelling via the mine shaft cage

· Winder House, consisting of a brief on the new Winder

Don Turvey, CEO and Director of Cornish Metals, stated: "We were delighted to have hosted HRH The Princess Royal at South Crofty, it was an honour to show her around the different aspects of the operation. This visit comes at an exciting juncture for the company, following the recent £57.4 million fundraising, including a £28.6 million strategic investment by the UK Government's National Wealth Fund.

"We are grateful to Her Royal Highness for taking the time to re-open New Cook's Kitchen Shaft, which is currently being refurbished to allow mine re-entry at lower levels. The opening of NCK shaft is an important milestone as we work to deliver a secure, sustainable, domestic supply of tin in the United Kingdom.

"Tin is classified as a critical mineral in the UK, USA, Canada, and other countries, due to its wide range of traditional uses and its growing role in electronics and energy transition technologies. With no primary tin production in Europe or North America, and Asia controlling over two-thirds of global mine supply and more than 80% of refined tin supply, securing Western sources of tin has become increasingly important. South Crofty represents a unique opportunity to develop a secure, long-term domestic source of tin, reducing reliance on volatile international markets."

Figure 1: HRH The Princess Royal was given a tour of the underground mine

Figure 2: HRH The Princess Royal unveiling a plaque to re-open New Cook's Kitchen Shaft

Figure 3: HRH The Princess Royal meets members of the Cornish Metals team​

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Figure 4: HRH The Princess Royal with Cornish Metals' CEO, Don Turvey

ON BEHALF OF THE BOARD OF DIRECTORS

"Don Turvey"

Don Turvey

CEO and Director

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This news release may contain certain "forward-looking information" and "forward-looking statements" (collectively, "forward-looking statements"). Forward-looking statements include predictions, projections, outlook, guidance, estimates and forecasts and other statements regarding future plans, the realisation, cost, timing and extent of mineral resource or mineral reserve estimates, estimation of commodity prices, currency exchange rate fluctuations, estimated future exploration expenditures, costs and timing of the development of new deposits, success of exploration activities, permitting time lines, requirements for additional capital and the Company's ability to obtain financing when required and on terms acceptable to the Company, future or estimated mine life and other activities or achievements of Cornish Metals. Forward-looking statements are often, but not always, identified by the use of words such as "seek", "anticipate", "believe", "plan", "estimate", "forecast", "expect", "potential", "project", "target", "schedule", "budget" and "intend" and statements that an event or result "may", "will", "should", "could", "would" or "might" occur or be achieved and other similar expressions and includes the negatives thereof. All statements other than statements of historical fact included in this news release, are forward-looking statements that involve various risks and uncertainties and there can be no assurance that such statements will prove to be accurate and actual results and future events could differ materially from those anticipated in such statements.

Forward-looking statements are subject to risks and uncertainties that may cause actual results to be materially different from those expressed or implied by such forward-looking statements, including but not limited to: risks related to receipt of regulatory approvals, risks related to general economic and market conditions; risks related to the availability of financing; the timing and content of upcoming work programmes; actual results of proposed exploration activities; possible variations in Mineral Resources or grade; projected dates to commence mining operations; failure of plant, equipment or processes to operate as anticipated; accidents, labour disputes, title disputes, claims and limitations on insurance coverage and other risks of the mining industry; changes in national and local government regulation of mining operations, tax rules and regulations. The list is not exhaustive of the factors that may affect Cornish's forward-looking statements.

Cornish Metals' forward-looking statements are based on the opinions and estimates of management and reflect their current expectations regarding future events and operating performance and speak only as of the date such statements are made. Although the Company has attempted to identify important factors that could cause actual actions, events or results to differ from those described in forward- looking statements, there may be other factors that cause such actions, events or results to differ materially from those anticipated. There can be no assurance that forward-looking statements will prove to be accurate and accordingly readers are cautioned not to place undue reliance on forward-looking statements. Accordingly, readers should not place undue reliance on forward-looking statements. Cornish Metals does not assume any obligation to update forward-looking statements if circumstances or management's beliefs, expectations or opinions should change other than as required by applicable law.