Spartan Metals intercepts 1,927 g/t Ag, 0.67% Sb, 1.83% Cu at Antelope Mine

Vancouver, British Columbia--(Newsfile Corp. - June 25, 2026) - Spartan Metals Corp. (TSXV: W) (OTCQB: SPRMF) (FSE: J03) (" Spartan " or the " Company ") is pleased to announce assay results from recent sampling conducted at its past producing Antelope Mine within the Rees Claims at its 100% owned Eagle Project, Nevada (Figure 1). Highlights: Backpack core drill sample returned 688 g/t silver (Ag) over 0.3 meters (m), with 0.67% copper (Cu) , 1,336 ppm arsenic (As) , and 0.30% antimony (Sb) (Table 1) Surface rock sampling returned: Ag above 1,000 g/t (29.2 troy ounce/ton) including: 1,510 g/t, 1,779 g/t, 1,927 g/t, 1,569 g/t, 1,674 g/t, and 1,234 g/t Sb above 0.2% (2,000 ppm) including: 0.67%, 0.61%, 0.58%, 0.21%, 0.21%, 0.23%, and 0.25% Cu above 1% including: 1.64%, 1.46%, 1.48%, 1.83%, and 1.10% Surface sampling results defined an area approximately 1.3 kilometers (km) by 0.6 km which is significantly larger than the existing mine extent which produced along strike of approximately 50 meters (m) 1 . Brett Marsh, Spartan's President and CEO, stated, "The grades returned from both the backpack core drilling and surface sampling programs demonstrate the strength of the mineralizing system at Antelope and significantly expand our understanding of its potential scale.

Particularly encouraging are the numerous silver values exceeding 1,000 g/t, accompanied by elevated antimony and copper, across a mineralized footprint measuring approximately 1.3 kilometres by 0.6 kilometres, which is substantially larger than the historically mined extent, which was limited to approximately 50 metres along strike." Mr. Marsh continued, "The presence of silver, antimony, and copper across such a broad area highlights the opportunity for a larger mineralized system than previously recognized at Antelope. From a strategic pe