Vancouver, B.C. – Northisle Copper and Gold Inc. (TSX-V: NCX, OTCQX: NTCPF) (“Northisle” or the “Company”) is profoundly saddened to announce the passing of Dale Corman, Non-Executive Chairman of the Board of Directors of the Company. Dale passed away on April 29, 2026, at the age of 88.

Vancouver, B.C. – Northisle Copper and Gold Inc. (TSX-V: NCX, OTCQX: NTCPF) (“Northisle” or the “Company”) is pleased to announce several additions to its leadership team, including:
• Andrea Zaradic, M.A.S.c, P. Eng. – Vice President, Project Development
• Kate Mueller, P.Eng. – Vice President, Sustainability
• Dr. John Thompson – Technical Advisor

Vancouver, B.C. – Northisle Copper and Gold Inc. (TSX-V: NCX, OTCQX: NTCPF) (“Northisle” or the “Company”) is pleased to announce additional drill results from its infill drilling campaign at the Northwest Expo deposit. A total of 8,464 metres were drilled at Northwest Expo with the objective of upgrading Inferred resources to the Indicated category in support of the ongoing Pre-Feasibility Study at the North Island Project (the “North Island PFS”), while improving confidence in the continuity and geometry of higher-grade mineralization at Northwest Expo and extending the strike length of the mineralized footprint.