Midnight Sun Confirms Dumbwa System With Initial Copper Intercepts Initial Dumbwa intercepts include 39.7m of 0.51% Cu including 7.0m of 1.13% Cu and 25.9m of 0.48% CuArticle content Vancouver, British Columbia–(Newsfile Corp. – October 1, 2025) – Midnight Sun Mining Corp. (TSXV: MMA) (OTC Pink: MDNGF) (“Midnight Sun” or the “Company”) is pleased to announce initial intercepts within the Dumbwa Target, which feature significant copper mineralization such as 0.51% Cu over 39.7 metres (“m”) including 1.13% Cu over 7m, and 0.48% Cu over 25.9m, successfully confirming the mineralized sulphide copper system at depth. Advertisement 2 Story continues below This advertisement has not loaded yet, but your article continues below. Article content Midnight Sun’s COO, Kevin Bonel, states, “We have successful initial intercepts confirming sulphide copper mineralization at Dumbwa, just a few holes into the first systematic drilling program ever conducted on this massive target. Please try againArticle contentAdvertisement 4 Story continues below This advertisement has not loaded yet, but your article continues below. Advertisement 9 Story continues below This advertisement has not loaded yet, but your article continues below.