Viscount Reports 7.9 metres (26 ft) Grading 473.2 g/t Silver and 2.92 g/t Gold at Silver Cliff; Step-Out Drilling Confirms Silver Mineralization Beyond Current Kate Silver Resource Limits

All ten 2026 drill holes were located outside the currently defined Kate NI 43-101 resource boundary, with drill sites ranging from 67.7 metres (219 ft) to approximately 1 km from the Kate Silver Resource (KSR) outline. K26-08 approximately 1 km from the KSR returned: 13.4 metres (44 ft) averaging 267.6 g/t silver 7.9 metres (26 ft) grading 473.2 g/t silver and 2.92 g/t gold 1.5 metres (5 ft) grading 1,030 g/t silver and 1.65 g/t gold 1.8 metres (6 ft) grading 675 g/t silver and 10.20 g/t gold. The entire 184.1-metre (604 ft) assayed hole averaged 21.8 g/t silver Vancouver, British Columbia--(Newsfile Corp. - September 22, 2026) - Viscount Mining Corp. (TSXV: VML) (OTCQX: VLMGF) ("Viscount" or the "Company") is pleased to report final assay results from its ten-hole, approximately 830-metre (2723 ft) 2026 drilling program at the Silver Cliff Project in Custer County, Colorado. All ten drill sites were outside the currently defined Kate NI 43-101 resource boundary, ranging from 67.7 metres (222 ft) to approximately 1 km from the KSR outline. Six holes specifically tested Kate resource-expansion ground 67.7 (222 ft) to 117.7 metres (383 ft) from the KSR, while four northern holes tested the broader structural trend 573.6 metres (1881 ft) to approximately 1 km from the KSR. Using an economic 15 g/t silver cutoff, for the 2026 drill results, three holes averaged more than 20 g/t silver across their entire lengths: K26-04 averaged 28.9 g/t silver over 56.4 metres (185 ft) K26-08 averaged 21.8 g/t silver over 184.1 metres (604 ft) K26-09 averaged 21.7 g/t silver over 62.3 metres (204 ft) Project Manager/Geologist Chrissy Ricks stated, "Applying the 15 g/t silver cutoff highlights the breadth and more continuous zones of silver mineralization across the 2026 drilling. The drill program has significantly advanced the Silver Cliff story, strengthening both our open pit resource-expansion opportunity at Kate and the broader exploration potential to the north. We interpret the Kate and Passiflora mineralizing systems as potentially related components of the broader Silver Cliff hydrothermal system, while recognizing that their mineralization styles, alteration and geological characteristics are distinct. The 2026 step out results provide new information on both the potential extent of Kate-style silver mineralization and the evolution of the mineralizing system to the north. Based on the results we are currently preparing for a follow up 10-hole drill program this year." The 2026 program was designed to test two complementary opportunities at Silver Cliff: expanding the near-surface open pit opportunity at the KSR beyond its currently modelled boundary, and testing soil-geochemical anomalies north of Kate along the broader structural trend toward the Passiflora porphyry target. The current April 2023 Kate mineral resource remains unchanged and was prepared using a 30 g/t silver cutoff. For evaluation and reporting of the 2026 drilling, Viscount is now applying a 15 g/t silver cutoff. These lower cutoff highlights broader consolidated mineralized intervals while preserving the higher-grade sub-intervals as important internal zones. The six Kate-focused holes tested ground 67.7 metres (222 ft) to 117.7 metres (386 ft) from the current KSR outline, and five returned composite intervals averaging at least 15 g/t silver. Because those intercepts lie beyond the existing resource boundary, none of that mineralization is currently included in the modelled tonnes or ounces. The four northern holes, at 573.6 metres (1881 ft) to approximately 1 km from the KSR, returned a distinctly different polymetallic signature, culminating in K26-08 with the strongest silver-gold mineralization of the program. Highlights High-Grade Silver-Gold Intercept K26-08 returned 13.4 metres (44 ft) averaging 267.6 g/t silver, including 7.9 metres (26 ft) grading 473.2 g/t silver and 2.92 g/t gold, 1.5 metres (5 ft) grading 1,030 g/t silver and 1.65 g/t gold, and a separ...