Vancouver, B.C. – Northisle Copper and Gold Inc. (TSX-V: NCX) (“Northisle” or the “Company”) is pleased to provide an update on its fall 2025 field program at the North Island Project. The program includes a comprehensive drilling, field exploration, environmental data collection and geotech site investigation program which will support the completion of a pre-feasibility study on the North Island Project by the end of 2026. The field exploration program will also advance the property-wide exploration thesis. The company has added more than 20,000 metres to the 2025 drilling program compared to the initial plans for the North Island Project, for a total target of 27,000 metres during 2025.

Sam Lee, President & CEO stated “Upon completion of our financing in August, our team has been hard at work to execute against our vision of unlocking the potential of our 35 km porphyry district as quickly as possible, starting with the North Island Project. We have now completed significant site upgrades, expanded our site team, and have commenced extensive field programs and project planning in support of that goal. We are continuing to work in earnest with our First Nations, Provincial, and Federal Governments to ensure the swift realization of this generational opportunity for all rights holders and stakeholders.”

Vancouver, B.C.– Northisle Copper and Gold Inc. (TSX-V: NCX, OTCQX: NTCPF) (“Northisle” or the “Company”) is pleased to announce additional results from its 2025 exploration campaign, comprised of six additional holes from the West Goodspeed target. These results continue to demonstrate wide intervals of mineralization near surface and contribute additional high-grade intervals at depth. Additional drilling during 2025 has been completed, testing areas to the northwest of West Goodspeed, and at other targets on the property.
Sam Lee, President and CEO stated “We continue to be encouraged by the results to date from West Goodspeed. These results continue to demonstrate continuity of good grades and provided us the confidence to step out further to the northwest at West Goodspeed. We have confirmed mineralization over a corridor spanning more than 1,000m in strike length with only 50% of results received from exploration drilling in the West Goodspeed-Red Dog mineralized corridor.”

Vancouver, B.C. – Northisle Copper and Gold Inc. (TSX-V: NCX) (“Northisle” or the “Company”) is pleased to announce the appointment of Kevin O’Kane as Executive Vice President and Chief Operating Officer, in addition to continuing as a non-independent Director of the Company. In addition, Nicholas Van Dyk has been appointed Executive Vice President of the Company and will continue as Chief Financial Officer and Corporate Secretary. Robin Tolbert, Chief Geoscientist, will be retiring effective September 13, 2025 and will continue as an advisor to the Company.