GALIANO GOLD REPORTS EXCEPTIONAL DRILL RESULTS AT ABORE, INCLUDING 23m @ 6.8 g/t Au AND 16.4m @ 5.3 g/t Au, WITH MULTIPLE ORE SHOOTS AND NEW HIGH-GRADE ZONE IDENTIFIED

Multiple new high-grade gold intercepts below the Mineral Resource at Abore highlight potential for Mineral Resource growth.

VANCOUVER, BC, Aug. 20, 2025 /PRNewswire/ – Galiano Gold Inc. (“Galiano” or the “Company”) (TSX:GAU) (NYSE American: GAU) is pleased to announce an update on the Abore 2025 Phase 2 drilling program, currently underway at the Asanko Gold Mine (“AGM”), in Ghana, West Africa. Drilling results have identified multiple new high-grade ore shoots across the Abore South and Main zones, while also revealing a significant new high-grade discovery at Abore North below the existing Mineral Reserve and Mineral Resource. The ongoing exploration program at Abore continues to unlock near-term growth opportunities, with mineralization open in multiple directions and additional drilling underway.

Figure 6: Cross section H-H1 showing hole ABDD25-371 within the newly identified ore shoot below Abore Main pit (CNW Group/Galiano Gold Inc.)

Figure 7: Cross section J-J1 showing hole ABDD25-380, which is northern extension of the high-grade ore shoot and plunges at low angle to the north under Abore Main pit. Hole ABDD25-385 also intersected strong mineralization approximately 75m below hole ABDD25-380. (CNW Group/Galiano Gold Inc.)

Figure 8: Cross section K-K1 showing hole ABDD25-384 within the newly identified south dipping high-grade structure located in the saddle area between Abore Main pit and Abore South pit (CNW Group/Galiano Gold Inc.)

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