16 October 2025

Strategic Minerals plc

("Strategic Minerals" or the "Company")

Notice of Investor Webcast

&

Updated Presentation

Strategic Minerals plc (AIM: SML; USOTC: SMCDF), an international mineral exploration and production company, is pleased to announce it will host a webcast and Q&A for investors following exceptional tungsten drilling results from the Redmoor tungsten-tin-copper project located in Cornwall, UK.

The webcast will be hosted by Strategic Minerals' executive directors, Charles Manners and Mark Burnett, who will be joined by Dennis Rowland, Managing Director of the Company's wholly owned subsidiary, Cornwall Resources Limited. The meeting will be conducted via the Investor Meet Company platform on Tuesday, 21 October 2025 at 11 a.m. BST. A recording of the webcast will be made available on the Company's website later that day.

Investors can sign up to Investor Meet Company for free and add Strategic Minerals in order to attend the webcast via: https://www.investormeetcompany.com/strategic-minerals-plc/register-investor.

Investors who already follow Strategic Minerals on the Investor Meet Company platform will automatically be invited. Questions can be submitted pre-event via the Investor Meet Company dashboard up until 9 a.m. BST on Monday, 20 October 2025, or at any time during the live presentation.

No material new financial or other information will be provided.

New Website & Investor Presentation

Strategic Minerals is also pleased to announce it has published a new website, available at the same domain of https://www.strategicminerals.net/. The Company has also uploaded a new investor presentation to the investors section of the new website. No material new financial or other information is included in the presentation.

Notes to Editors

About Strategic Minerals plc and Cornwall Resources Limited

Strategic Minerals plc (AIM: SML; USOTC: SMCDY) is an AIM-quoted, producing minerals company, actively developing strategic projects in the UK, United States and Australia.

In 2019, the Company completed the 100% acquisition of Cornwall Resources Limited and the Redmoor Tungsten-Tin-Copper Project.

The Redmoor Project is situated within the historically significant Tamar Valley Mining District in Cornwall, United Kingdom, with a JORC (2012) Compliant Inferred Mineral Resource Estimate published 14 February 2019:

1 Equivalent metal calculation notes; Sn(Eq)% = Sn% x 1 + WO3% x 1.43 + Cu% x 0.40. WO₃(EQ)% = Sn% x 0.7 + WO₃ + Cu% x 0.28.  Commodity price assumptions: WO₃ US$ 33,000/t, Sn US$ 22,000/t, Cu US$ 7,000/t.  Recovery assumptions: total WO3 recovery 72%, total Sn recovery 68% & total Cu recovery 85% and payability assumptions of 81%, 90% and 90% respectively

More information on Cornwall Resources can be found at: https://www.cornwallresources.com

In September 2011, Strategic Minerals acquired the distribution rights to the Cobre magnetite project in New Mexico, USA, through its wholly owned subsidiary Southern Minerals Group.  Cobre has been in production since 2012 and continues to provide a sustainable revenue stream for the Company.

In March 2018, the Company completed the acquisition of the Leigh Creek Copper Mine situated in the copper rich belt of South Australia.  The Company has entered into an exclusive Call Option with South Pacific Mineral Investments Pty Ltd trading as Cuprum Metals to acquire 100% of the project.

About the CIOS Good Growth Fund and UK Shared Prosperity Fund

This project is part-funded by the UK Government through the UK Shared Prosperity Fund.  Cornwall Council is responsible for managing projects funded by the UK Shared Prosperity Fund through the Cornwall and the Isles of Scilly Good Growth Programme.

Cornwall and Isles of Scilly has been allocated £184 million for local investment through the Shared Prosperity Fund.  This new approach to investment is designed to empower local leaders and communities, so they can make a real difference on the ground where it's needed the most.

The UK Shared Prosperity Fund proactively supports delivery of the UK-government's five national missions: pushing power out to communities everywhere, with a specific focus to help kickstart economic growth and promoting opportunities in all parts of the UK.

For more information, visit

https://www.gov.uk/government/publications/uk-shared-prosperity-fund-prospectus

For more information, visit https://ciosgoodgrowth.com

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