Mosaic Announces Updated Channel Sampling Results at Golden Island, Including an Average Grade of 280.26 g/t Au over 0.5 m, and Provides a Drilling Progress Update

Montreal, Quebec–(Newsfile Corp. – November 12, 2026) – Mosaic Minerals Corporation (CSE: MOC) (“Mosaic” or the “Company”) announces updated results from its channel sampling program on the Golden Island gold project, in Abitibi, Quebec. The program comprises 343 samples, mostly 0.5 m long, collected from 98 channels. The samples were analyzed by fire assay, with gravimetric and metallic sieve re-assays for the highest-grade samples. The Company also provides an update on its drilling campaign…

Source: https://www.newsfilecorp.com/release/323695/Mosaic-Announces-Updated-Channel-Sampling-Results-at-Golden-Island-Including-an-Average-Grade-of-280.26-gt-Au-over-0.5-m-and-Provides-a-Drilling-Progress-Update