Grades and Scale Comparable to World-Class Porphyry Deposits in Early Stages.

Vancouver, British Columbia - Newsfile Corp. - August 14, 2025 - Viscount Mining Corp. (TSXV: VML) (OTCQB: VLMGF) ("Viscount" or the "Company") is pleased to announce a pivotal early-stage discovery at its Passiflora porphyry target in Silver Cliff, Colorado. The Company's first deep drill hole (PF-03A) intersected 843.9 metres of continuous copper-gold mineralization averaging 0.214% CuEq, including multiple higher-grade zones such as 189 m at 0.326% CuEq and 45 m at 0.417% CuEq. These grades exceed typical early-stage porphyry exploration thresholds (~0.15% CuEq) often seen in the initial drilling of deposits that evolved into world-class, long-life operations, and the target remains open in all directions and at depth. Drill hole PF-03A was designed to test a very strong geophysical anomaly identified by Quantec Geoscience's Titan MT survey in 2023. The survey outlined a strong conductive target beginning at ~400 m and extending to at least 1,500 m depth and over 2km in horizontal distance. Drilling began in mid-January 2025 and concluded March 7, 2025 at a final depth of 1,144 m due to equipment challenges, short of the planned 1,500 m target. The upper 300 metres of core were not assayed, as the Titan MT model indicated the main conductor began around 400 metres. However, visual inspection of the core confirmed strong sulfide mineralization from surface to 300 metres. This zone remains a high-priority target for future sampling and reassessment. The principal objective of the drill hole was to determine whether the geological target was indeed a porphyry system, and not a different type of conductive anomaly. We are thrilled to report that not only did the drilling confirm the presence of a copper-gold porphyry system, but it also revealed consistently anomalous concentrations of copper, molybdenum, zinc, and lead, alongside a significant presence of gold. Viscount CEO Jim MacKenzie stated, "With grades like this, especially with nearly half the samples above 0.20% CuEq, are a clear signal we're dealing with a significant deposit. The presence of multiple, thick, higher-grade zones-such as 189 m at 0.326% CuEq including 45 m at 0.417% CuEq, and 99 m at 0.278% CuEq including 24 m at 0.306% CuEq-well above typical early-stage porphyry levels, reinforces Passiflora's potential as an extensive, long-life copper-gold system." "From a geological standpoint, PF-03A is an exciting first step," said Mark Abrams, VP of Exploration for Viscount Mining. "The consistent copper values throughout the hole, the upward grade trend with depth, and the presence of multiple minerals typically associated with mature porphyry systems all point to a robust porphyry deposit. These are exactly the kind of early results we look for in a discovery program - the system is open in every direction, and we've only just begun to explore its full potential." A "porphyry copper deposit" is a specific subtype genetically and structurally associated with porphyritic intrusive igneous rocks. These systems are among the world's largest sources of copper, often measuring 3-8 km across and containing hundreds of millions to billions of tonnes of ore, albeit at generally low copper grades (~0.2-1%). The PF-03A drill hole results confirm that the Passiflora target is a porphyry-style system-an encouraging outcome because such deposits have the potential to support long-life, large-scale mining operations. Summary Statistics

• Average CuEq: 0.2163% (2,163 ppm)
• Maximum CuEq: 0.7826% (7,826 ppm) - Sample 179326
• Minimum CuEq: 0.0361% (361 ppm) - Sample 179211
• Standard Deviation: ~0.146%

EconomicsAverage grade 0.2163% - well above typical porphyry cut-offs Key Observations

• Gold dominates the copper equivalent value (40.1%)
• Copper remains significant at 48.9% of total value
• Economic continuity excellent with 47% of samples above cut-off
• Resource potential upgraded due to gold credit

Deposit Classification This is a gold-rich porphyry copper deposit with:

• Primary copper mineralization (48.9% of value)
• Significant gold credits (40.1% of value)
• Supporting polymetallic credits (Zn, Mo, Pb

Top 20 Highest Grade Intervals

Rank	Sample	CuEq (%)	Au (ppb)	Cu (ppm)	Pb (ppm)	Zn (ppm)	Mo (ppm)
1	179326	0.7826	835	1027	3481	2963	22
2	179242	0.7758	918	30	112	3413	140
3	179473	0.5547	209	944	10000	3244	168
4	179464	0.5221	615	3913	108	1320	22
5	179463	0.8912	534	4755	116...