Group Eleven drills 11.8m of 13.4% Zn+Pb, 45 g/t Ag at Peruvian project

Vancouver, British Columbia--(Newsfile Corp. - May 28, 2026) - Group Eleven Resources Corp. (TSXV: ZNG) (OTCQB: GRLVF) (FSE: 3GE) (" Group Eleven " or the " Company ") is pleased to announce new assay results from three drill holes at its Ballywire discovery (" Ballywire ") at the 100%-owned PG West Project (" PG West "), Republic of Ireland. Highlights: 26-3552-57  – Drilled 80m SW of 25-3552-51 (which intersected 52.3m of 10.3% Zn+Pb, 330 g/t Ag and 0.40% Cu; announced 25-Feb-2026): 62.5m of 5.6% Zn+Pb (2.9% Zn and 2.7% Pb), 25 g/t Ag (at the base of the Waulsortian Limestone; starting from 329m downhole), including 11.8m of 13.4% Zn+Pb (3.3% Zn and 10.1% Pb), 45 g/t Ag , incl. 4.6m of 22.4% Zn+Pb (1.0% Zn and 21.3% Pb), 74 g/t Ag and 14.6m of 8.4% Zn+Pb (6.5% Zn and 1.9% Pb), 44 g/t Ag , incl. 4.8m of 17.0% Zn+Pb (14.6% Zn and 2.4% Pb), 82 g/t Ag Assays are pending from the Deeper Cu-Ag target (below the Waulsortian Limestone; 398m to 652m downhole) 25-3552-53  – Drilled 40m SSE from 25-3552-51: Initial assays announced 16-Apr-2026 returned 23.5m of 12.3% Zn+Pb and 46 g/t Ag (hosted at the base of the Waulsortian Limestone) Assays from Deeper Cu-Ag target released today yielded eleven (11) separate zones of mineralization (starting from 390m downhole), hosted within steeply south-dipping fault zones and including 1.0m of 100 g/t Ag and 0.67% Cu 25-468-22  – First test of the Deeper Cu-Ag target on the SW edge of the Ballywire discovery, representing a 720m step-out from the nearest such drilling, successfully intersected four (4) zones of Cu-Ag mineralization, including: 1.9m of 12 g/t Ag and 0.10% Cu and 6.8m of 5 g/t Ag and 0.10% Cu, incl. 1.0m of 22 g/t Ag and 0.26% Cu This initial test is interpreted to be peripheral to a zone of increasing prospectivity located downdip and