Galiano Gold Expands Abore Mineralized System with New Intercepts Including 32m @ 4.7 g/t Au and 53m @ 3.9 g/t Au

Latest Drilling Intersects New High-Grade Mineralization Beneath Abore Main Pit, Enhancing Resource Growth Potential Beyond Existing Underground Mineral Resource Vancouver, British Columbia-(Newsfile Corp. - May 11, 2026) - Galiano Gold Inc. (TSX: GAU) (NYSE American: GAU) ("Galiano" or the "Company") is pleased to report positive assay results from the Abore drilling program ("Abore Program") at the Asanko Gold Mine ("AGM") in Ghana, West Africa. These results continue to demonstrate exceptional Mineral Resource growth potential, with drilling successfully extending mineralization at depth, along strike, and across previously untested areas outside the current underground Mineral Resource. The Abore Program, announced in January 2026 1 , includes both step-out drilling targeting new zones of mineralization beyond the known Mineral Resource and infill drilling focused on expanding and upgrading the existing underground Mineral Resource. To date, approximately 14,500 metres ("m")