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Company Announcement · AIM: TLM

Publication of 2025 Annual Report

Talisman Metals PLC

29 June 2026

Talisman Metals PLC

("Talisman" or the "Company")

Publication of 2025 Annual Report

Talisman Metals PLC (“Talisman” or the “Company”) announces the publication of its
Annual Report and Audited Financial Statements for the year ended 31 December 2025
(the   “Accounts”),   which   are   available   on   the   Company’s   website
www.talismanmetalsplc.com. Additionally, a copy of the Accounts is being posted to
Shareholders. The Accounts cover a period prior to the Company as now enlarged by the
acquisition of Tadeen, including all associated changes, and therefore should be read in
that context.

Contained in Appendix 1 to this announcement are the unaudited interim accounts for Tadeen International Limited (“Tadeen”) for the 6 months ended 31 December 2025, following the acquisition of Tadeen by Talisman as completed on 27 January 2026. CEO letter

Tim McCutcheon, Talisman’s CEO stated “Dear Shareholders, Colleagues and Stakeholders, 2025 was a truly transformational year for Talisman Metals PLC, where management took all the steps to navigate the change of business, AIM readmission, fund raising and accounting requirements to become what we are today – a focused copper exploration asset developer with projects in Morocco. This process took longer than expected due to the transaction complexity. However, due to the perseverance of management, and with support from our directors, we were able to finish out all the work right in time for the New Year! I wish to say “Thank you” to all the people who helped make this possible. Morocco as a jurisdiction to work in, is one of the best I have seen in my career, with a fresh mining code, a supportive government, and people who truly want to see the mining sector succeed in their country. Copper as an exploration and development target, is one of the best in the mineral business. Looming supply issues and robust projected demand due to AI power needs, electric cars, and power grid build-out all point to a bright future for copper prices. This backdrop is systemic, meaning its conditions will be in place for a long time and presents a constant tailwind to Talisman as we advance our projects forward. For 2026 we are rapidly building-out our capacity to work in the field by establishing relationships with contractors and partners, as well as bringing new talent onto the Talisman team. As I write this, the first work at our Fougnar and Tirzzit projects has been completed and results announced. We will continue our work through to the end of the year with the goal of publishing a Mineral Resource Estimate at both projects. On the capital markets, we are still a new company working to get recognition. In parallel with getting operational results, management is raising the awareness of Talisman amongst a broad investor audience so that our operational success can be best reflected into our valuation. This work never ends and I encourage the reader to feel free to reach out to management with any questions – information flow is the best friend of success on the capital markets!

In summary, 2025 was a transformational year and 2026 shows no signs of slowing down for us. However, Talisman is well worth the effort, as we have a very special group of people and assets to build a true legacy. Thank you for your attention and support. Sincerely, Tim McCutcheon”

Milestones for 2025

In 2025 the Company moved decisively to change its business from a biopharmaceuticals focus to mineral exploration. Key milestones in 2025 that cumulated into a change of business and eventual readmission to the AIM Market on 27 January 2026 include: March 2025

Appointment of Ms. Leah O'Donovan as Chief Financial Officer

May 2025

Letter of Intent signed and announced to acquire 100% of Tadeen International Limited, a company which indirectly owned a portfolio of mineral exploration licenses in Morocco prospective for copper and silver.

Change of NOMAD from Davy to Beaumont Cornish Limited

November 2025

Appointment of CMC Markets UK Plc as Company broker

December 2025

Publication of Admission Document and notice for annual shareholder meeting and an extraordinary shareholder meeting to approve the acquisition of 100% of Tadeen International Limited, change the Company name to Talisman Metals plc, a 15 million share issuance to raise capital, a Share Capital Reorganisation of three existing shares for one new share and admission of the Enlarged Group to trading on AIM.

Subsequent to year-end, an additional major milestone for the Company was the acquisition of the Tirzzit Copper Project in Morocco from a subsidiary of Aya Silver & Gold Inc. (TSX: AYA; OTCQX: AYASF), as well as the announcement of field work and its results at the Company’s projects.

End

For further information:

Talisman Metals PLC

Tim McCutcheon (Chief Executive Officer and Director)

Tel +353 (0) 1 525 6710

contactus@talismanmetalsplc.com

Beaumont Cornish Limited (Nominated Adviser)

James Biddle / Roland Cornish

Tel: +44 (0) 207 628 3396

CMC Markets UK Plc (Broker)

Thomas Smith / Thomas Curran

Tel: +44 (0) 20 3003 8255

BlytheRay (Financial PR)

Megan Ray / Said Izagaren

Tel: +44 (0) 20 7138 3204

talismanmetals@blytheray.com

This announcement contains inside information for the purposes of Article 7 of the Market Abuse Regulations (EU) No. 596/2014, as it forms part of UK Domestic Law by virtue of the European Union (Withdrawal) Act 2018. Upon publication of this announcement, this inside information is now considered to be in the public domain.

Nominated Adviser Statement

Beaumont Cornish Limited ("Beaumont Cornish"), is the Company's Nominated Adviser and is authorised and regulated in the United Kingdom by the Financial Conduct Authority. Beaumont Cornish's responsibilities as the Company's Nominated Adviser, including a responsibility to advise and guide the Company on its responsibilities under the AIM Rules for Companies and AIM Rules for Nominated Advisers, are owed solely to the London Stock Exchange. Beaumont Cornish is not acting for and will not be responsible to any other person for providing the protections afforded to customers of Beaumont Cornish nor for advising them in relation to the transaction and arrangements described in the announcement or any matter referred to in it.

Appendix 1

Tadeen International Limited unaudited interim accounts for the 6 months ended 31

December 2025 (all figures in United States Dollars)

Tadeen International Limited

Unaudited Statement of Profit or Loss

For the six month periods ended 31 December 2025 and 31 December 2024

31/12/2025   31/12/2024
$   $
Other income   -   -
Administrative expenses   (89,791)   (73,677)
Operating loss   (89,791)   (73,677)
Finance income / (costs)   -   -
Loss before tax   (89,791)   (73,677)
Tax expense   -   -
Loss for the period   (89,791)   (73,677)

Analysis of administrative expenses by nature

Director (fees) / reversal   5,000   (15,000)
Sundry expenses   -   -
Accountancy fees   (13,791)   (1,606)
Legal and professional fees   (81,000)   (56,954)
Exchange differences   -   (117)
Total administrative expenses   (89,791)   (73,677)

Tadeen International Limited

Unaudited Statement of Financial Position

As at 31 December 2025 and 31 December 2024

31/12/2025 31/12/2024

$   $

Assets

Non-current assets

Investment in group undertaking   634,351   419,818
Total non-current assets   634,351   419,818

Current assets

Trade and other receivables   -   -
Cash and cash equivalents   -   -
Total current assets   -   -
Total assets   634,351   419,818

Equity and liabilities

Current liabilities

Borrowings   364,922   225,041
Trade and other payables   55,453   60,087
Total current liabilities   420,375   285,128
Total liabilities   420,375   285,128
Net assets   213,975   134,690

Equity

Share capital   1,345   1,345
Capital contribution reserve   250,000   250,000
Retained earnings / (accumulated losses)   (37,370)   (116,655)
Total equity   213,975   134,690
Total equity and liabilities   634,351   419,818

Tadeen International Limited

Unaudited Statement of Cash Flows

For the six month periods ended 31 December 2025 and 31 December 2024

31/12/2025   31/12/2024
$   $

Cash flows from operating activities

Loss for the period   (89,791)   (73,677)

Adjustments for:

Operating expenses settled through shareholder loans   34,338   16,568
Movement in trade and other payables   55,453   57,109
Net cash used in operating activities   -   -

Cash flows from investing activities

-   -
Net cash used in investing activities   -   -

Cash flows from financing activities

-   -
Net cash from financing activities   -   -
Net change in cash and cash equivalents   -   -
Cash and cash equivalents at beginning of period   -   -
Cash and cash equivalents at end of period   -   -
Talisman Metals PLC is admitted to trading on AIM under the ticker TLM. For further information, please contact us.