Northmin hits high-grade silver in Tynagh Stockpile

Toronto, Ontario--(Newsfile Corp. - July 6, 2026) - Northmin Corp. (TSXV: NMB) (" Northmin " or the " Company ") is pleased to announce rock sample assay results from its initial assessment of the low grade stockpile on the Tynagh mine site as part of its Ag-Cu-Zn-Pb exploration program at the 100%-owned Tynagh Project (" Tynagh "), Republic of Ireland. The assays are from both panel samples and selective grab samples; Highlights: 10 Panel Samples, each collected over a 4m 2 area, returned average values of: 43.6g/t Ag, ranging from 6.81 to 128g/t Ag 3.05% Zn ranging from 0.1 to 15.15% Zn 1.99% Pb ranging from 0.06 to 4.13% Pb 17 grab and chip samples of mineralised boulders and cobbles returned encouraging results with some high-grade silver, lead and zinc including: 8 selective grab samples of sulphide mineralisation averaged 252g/t Ag (range 126-502 g/t Ag) with associated high-grade lead and zinc averaging 19.86% Pb and 3.88% Zn respectively for the 8 samples. 7 gossan samples in the lower stockpile exhibit high silver and zinc values grading from 3.1 to 324 g/t Ag and 0.57% to 30% Zn (Average of 93g/t Ag, 13.14% Zn and 1.55% Pb). The seven gossan samples in the lower part of the stockpile are from both selective grabs and composite chip samples of red gossanous clasts and have a grade of 130.8g/t Ag when weighted by sample weight, including 4.9kg sample of fine, red earthy material (<5mm clasts) in the lower stockpile with 324 g/t Ag, 2.4% Pb and 0.61% Zn, suggesting that the fine material also warrants further evaluation.

High-grade mineralised cobbles and boulders may be amenable to ore sorting technology. Julian Vickers, Northmin CEO, stated "Today's results confirm our observations that the stockpile material to the west of the Tynagh open pit contains mineralisation that could contribute further to the Company's resource base at the Tynagh mine site. In addition to advancing our 43-101 compl