Northmin drills copper at Tynagh; issues options to directors and officers

Toronto, Ontario--(Newsfile Corp. - July 13, 2026) - Northmin Corporation (TSXV: NMB) (" Northmin " or the " Company ") is pleased to announce assay results from the first two drill holes drilled on the Tynagh mine site as part of its hard rock Ag-Cu-Zn-Pb exploration program at the 100%-owned Tynagh Project (" Tynagh "), Republic of Ireland, and the issuance, on July 9, 2026, of 3,500,000 incentive stock options to directors, officers and employees pursuant to the terms of the Company's Stock Option Plan. Highlights: Two holes intersected numerous mineralized intercepts including high-grade copper in drill hole 3615-26-07: 6.4m grading 4.92% Cu, 0.98% Sb & 62.04 g/t Ag from 149.0m including 1.95m grading 10.08% Cu, 2.36% Sb & 136.46 g/t Ag from 153.45m 3615-26-07 intersected a broad zone of Waulsortian reef-hosted polymetallic mineralization peripheral to the mine workings and structurally-controlled high-grade copper mineralization in the footwall below the historic mine confirming the presence of an unmined footwall copper-silver-antimony target; In the Waulsortian Reef Limestone, 27.45m grading 0.26% Cu, 4.57% Zn+Pb, 0.06% Sb and 20.78 g/t Ag from 90.55m in Waulsortian Reef Limestone, Including 2.75m grading 0.83% Cu, 0.99% Zn+Pb, 0.18% Sb and 29.03 g/t Ag from 97.0m, and 6.8m grading 13.31% Zn+Pb and 48.79 g/t Ag from 110.2m. In the previously unmined sub-reef Lower Muddy Limestone, 15.3m grading 2.16% Cu, 0.77% Zn+Pb, 0.42% Sb and 32.01 g/t Ag from 141.0m, Including 6.4m grading 4.92% Cu, 0.67% Zn+Pb, 0.98% Sb and 62.04 g/t Ag from 149.0m (stated above), Which includes 1.95m grading 10.08% Cu, 1.2% Zn+Pb, 2.36% Sb, and 136.46 g/t Ag from 153.45m. 3615-26-06, collared 85m northwest of 3615-26-07, also intersected Waulsortian reef-hosted lead-zinc-silver mineralization and footwall copper mineralization below