Talisker Reports Mustang Underground Face Sample Results Defining a 36-metre Strike Length High-grade Shoot Averaging 27.88 g/t on the 1105 Level

TORONTO, Sept. 28, 2026 (GLOBE NEWSWIRE) -- Talisker Resources Ltd. (“ Talisker ” or the “ Company ”) (TSX:TSK | OTCQX:TSKFF) is pleased to report a significant new high-grade gold discovery from underground development on the 1105 Level at the Mustang Mine. Development has exposed a continuous 36-metre strike length of high-grade mineralization along the M1 Vein, comprising a well-defined banded quartz vein averaging 27.88 grams per tonne (g/t) gold across an average true width of 0.61 metres. The mineralization occurs outside the defined Mineral Resource at time of discovery in a zone where high-grade mineralization had not previously been delineated. The M series of veins are third order structure that have a different strike and dip orientation to the main second order veins mined by Talisker such as the BK, BK-9870 and Alhambra. Talisker does not specifically target these veins for resource delineation as they are sub-parallel to the drill orientation required to target the larger second order veins, however the veins can be intersected during lateral development.

The M1 Vein is a relatively shallow, north-dipping vein beyond (north of) the BK-9870 vein, and south of the King vein in Mustang. The vein is characterized abundant by crack-seal textures and a sulphide assemblage dominated by pyrite and arsenopyrite, with trace sphalerite. Results highlight the potential for additional high-grade mineralization beyond the current Mineral Resource. The discovery reinforces the strong exploration upside surrounding existing underground infrastructure at the Bralorne Gold Project, British Columbia, Canada.

Key Highlights:

229.0 g/t over 0.63 m within 36.6 g/t over 4.60 m from 1105 M1 Vein, West Face No. 11

93.1 g/t over 0.63 m within 51.6 g/t over 1.58 m from 1105 M1 Vein, West Face No. 2

75.2 g/t over 0.94 m within