Group Eleven Drills 25.6m of 9.2% Zn+Pb and 28 g/t Ag and Extends Deeper Cu-Ag Zone with 17.4m of 35 g/t Ag and 0.31% Cu at Ballywire Discovery

The October 20, 2025 news release provides the latest drill results from the Ballywire discovery at the PG West Project in Ireland. The key intercepts include: * Hole 25-3552-39: Intersected a thick, high-grade zone of zinc-lead-silver (Zn-Pb-Ag) mineralization in the main Waulsortian Limestone horizon, returning 25.6 metres of 9.2% Zn+Pb and 28 g/t Ag. * Hole 25-3552-44: Successfully extended the recently confirmed deeper Copper-Silver (Cu-Ag) zone below the main horizon, intersecting 17.4 metres of 35 g/t Ag and 0.31% Cu. CEO Bart Jaworski noted the significance of having both the Zn-Pb-Ag and Cu-Ag zones in close proximity, which is advantageous from a potential future mining perspective compared to their initial hypothesis of the zones being more separated. Drilling continues with three rigs on site.

The news is materially positive as it successfully delivers on two key objectives. First, it continues to define and expand the primary high-grade Zn-Pb-Ag discovery with another excellent intercept (25.6m of 9.2% combined grade is robust). Second, and more strategically important, it extends the newly confirmed deeper Cu-Ag zone, reinforcing the company's new exploration model and significantly expanding the project's potential scale.

This release follows a critical news release on September 22, 2025, which announced the "first test... has borne fruit" for the deeper Cu-Ag target. Today's results provide the first successful step-out on that new discovery, demonstrating continuity. This progression—from hypothesizing the deeper zone earlier in the year, to hitting it in September, to extending it now in October—is a major de-risking event. It confirms that Ballywire is not just a single-horizon discovery but a stacked system, which dramatically improves its economic potential.

The company is in an excellent position, having closed a C$5.75 million financing at C$0.32 in July 2025, leaving it fully funded for an aggressive 25,000-metre drill program. These results, achieved with that funding, build investor confidence and keep momentum strong. While not a "Game Changer" like the initial discovery of the second zone, this news is a very strong and material follow-up that confirms the exploration thesis and adds significant value.

Group Eleven Resources Corp. is a mineral exploration company focused on zinc in the Republic of Ireland. Its flagship asset is the 100%-owned Ballywire discovery within the PG West Project. First announced in September 2022, Ballywire has rapidly evolved into one of Ireland's most significant new mineral discoveries. The company has consistently expanded the discovery through systematic step-out drilling, defining a mineralized footprint of over 2.6 km along a prospective 6 km trend. Recent exploration has successfully identified and confirmed a second, deeper horizon of high-grade copper-silver mineralization, transforming the project into a stacked system with enhanced economic potential.