Tirzzit Mapping Identifies New Mineralisation

Talisman Metals PLC

23 July 2026

RNS Number: 4767N

Talisman Metals PLC

23 July 2026

Talisman Metals PLC

("Talisman" or the "Company")

Tirzzit Mapping Identifies New Mineralisation

Talisman Metals PLC ("Talisman" or the "Company") announces that a new zone of outcropping copper mineralisation at the Tirzzit Copper Project has been discovered by the Company's geology team. This discovery significantly extends the known mineralisation zone to the east, extending potential strike length by 2km from the historic drill hole of TT6 (11.40m @ 0.60% Cu starting at 72.80m deep). Drill hole TT6 and the site of the outcrop discovery is marked on Map 1.

The Company is presently conducting a scouting operation at Tirzzit in preparation for its planned drilling campaign later this summer. In the course of the operation, prospecting to the north of the ridge that defines the northeast boundary of the Tirzzit license area uncovered the new drill target with outcropping mineralisation such as malachite. See Pictures on Figure 1.

Figure 1: Pictures showing outcropping mineralisation and malachite within the siltstones of the basal series

Tim McCutcheon, Talisman's CEO stated: "Things are going very well for our team as we gear up to drill at Tirzzit. Sometimes the best geology is uncovered the old-fashioned way, by mapping and prospecting. This outcrop, and the other known structures that are similar, make us extremely confident that we have a special project at Tirzzit which has size potential previously unknown."

The outcrops have been channel sampled to understand control, Cu and Ag tenure, mineralisation thickness and dip direction angle to generate drill targets and assay results will be presented in the next few weeks.

Map 1: Tirzzit map of 2026 channel sample results and site of discovered outcropping copper mineralisation

About The Tirzzit Project

The Tirzzit Project is a sediment-hosted stratiform Cu-Ag system, located 225km east of the city of Agadir, Morocco. The acquisition transaction of the Project was announced February 16, 2026 (see press release) from a wholly owned subsidiary of Aya Silver & Gold Inc. (TSX: AYA; OTCQX: AYASF) ("Aya"), the Company's 4.7% shareholder. The Project consists of two mining licenses covering a surface area of 16.5km². Historic drilling results, as reported by Moroccan Government agency Bureau of Research and Mining Participations (BRPM) between 1972 and 1976 ("BRPM Reports"), include drill intersections of 3.16% Cu over 2.5m and 0.60% Cu over 11.4m. Presently the Company is reviewing the extensive BRPM Reports and past collected geophysical data for exploration planning slated to commence in 3Q2026. Talisman continues to process with Aya the formal transfer of the Tirzzit licences on the back of the sale agreement announced February 16, 2026.

Qualified Person

The technical disclosure in this news release has been approved by Fabien Linares, MSc, MAusIMM, a Qualified Person as defined in JORC 2012. The scientific and technical information summarized in this disclosure and related to historic exploration was reviewed by Mr. Linares and he has visited the Project area. Mr. Linares is Head Geologist of Talisman Metals PLC and has sufficient experience that is relevant to the commodity, style of mineralisation or type of deposit under consideration and activity which he is undertaking to qualify as a Competent Person under the JORC code (2012 Edition).

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

JORC Code (2012) - Historical Exploration Results Disclaimer

The information in this announcement that relates to historical reported exploration results is based on, and fairly represents, information and supporting documentation prepared by previous operators and/or extracted from historical reports.

The historical exploration results referred to in this announcement were reported prior to the introduction of the JORC Code (2012) and have not been reported in accordance with the JORC Code (2012).

A Competent Person has not done sufficient work to disclose the historical exploration results in accordance with the JORC Code (2012). It is possible that following further evaluation and/or exploration work, the accuracy and reliability of the historical exploration results may not be confirmed.

The Company has not independently verified the historical exploration results, and no assurance can be given that future exploration work will result in the confirmation or upgrade of the historical results to JORC Code (2012) compliant Mineral Resources or Ore Reserves.

The Company considers the historical exploration results to be relevant as they provide an indication of the potential of the project. However, the information should not be relied upon as a representation of the current mineral resource or exploration potential.

Technical Glossary

Adit	A nearly horizontal passage driven from the surface into a hillside or orebody, used to access mineralisation, facilitate drainage, provide ventilation, and enable the transport of personnel, equipment, or ore.
Ag	Silver
Basal Series	A stratigraphic layer within a sediment basin that has properties conducive to hosting mineralisation.
Cu	Copper
Channel sampling	A systematic sampling method in which a continuous, linear sample is collected across an exposed rock face or outcrop, typically perpendicular to the mineralised structure, to obtain a representative measure of grade over a defined width. The sample is usually cut or chipped along a uniform channel to reflect the true thickness and composition of the mineralised interval.
Malachite	A secondary copper carbonate hydroxide mineral (Cu₂CO₃(OH)₂), typically bright green in colour, formed by the weathering and oxidation of primary copper sulphides. It commonly occurs as coatings, vein fillings, or disseminations in the oxidised zones of copper deposits and is widely used as an indicator of near-surface copper mineralisation.

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.

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