Talisman Metals PLC announced the results from recent channel sampling activities completed at the Tirzzit copper-silver project in April 2026. Highlight sample results include: Channel TZ-CH001: 2.65m@1.71% Cu and 22.25ppm Ag - ended in mineralisation. Channel TZ-CH003: 0.94m@1.11% Cu and 6.00ppm Ag.

Channel TZ-CH005: 1.63m@1.06% Cu and 4.25ppm Ag. Assay Results: Malachite mineralisation at surface within the Basal Series was channel sampled along strike over approximately 700m of the interpreted 4.6km trend, with approximately one channel sample collected every 100m. Along the 700m strike length the average intercept is 1.25m thick with grade of 1.21% Cu and 12.25ppm Ag (weighted average) and the alteration halo is about 2.00m thick on average.

Intercepts usually sit on the top of the Basal Series and the hanging wall coincides with the contact on dolomite material. Results confirm that the mineralised horizon in the Basal Series identified during historical mapping shows lateral continuity, with values above cut-off grade (Cu Cut-Off Grade=0.3%) in all seven of seven channels over a strike length of 700m with copper (Cu) grades ranging from 0.75% to 1.74% and silver (Ag) grades ranging from 3 to 22ppm. Note that all the intervals are reported as true width.

The sampling was done using channel sampling, with sub-vertical groves against outcrops dipping 30 Degrees to the North-North-West, cut with a circular saw on 63.5mm wide grove (HQ Core Diameter). True thickness of the sampling intervals were measured with a Jacob Staff. A total of 6 QA/QC samples were inserted into the original samples, comprising approximately 5% blanks, 5% field duplicates, and 5% certified reference materials.

Samples were submitted to the ONHYM laboratory for sample preparation (crushing at 3mm, 85% pass and pulverised at 75microns) and multi-element analysis using a three-acid digestion (HCl-HNO3-HF) with ICP-AES finish. The analytical method has a lower detection limit of 5 ppm for copper (Cu) and 1 ppm for silver (Ag). Blank samples showed no evidence of contamination above three times the detection limit for Cu or Ag.

Field duplicates demonstrated an acceptable repeatability, with an R² value of 0.93. Certified reference materials consistently returned copper values approximately 14% below certified values, and the Company is reviewing the potential analytical bias; however, the Company does not currently consider this issue to materially impact the interpretation of the results. For the reporting of each intercept stated comprised of more than one sample and samples are of differing lengths.

In this case the average grade for the full interval length was calculated by length-weighted averaging, a standard method for determining average grades. 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 from a wholly owned subsidiary of Aya Silver & Gold Inc. (TSX: AYA; OTCQX: AYASF), 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 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 Third Quarter 2026.

Talisman continues to process with Aya the formal transfer of the Tirzzit licences on the back of the sale agreement announced February 16, 2026. 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). 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.