Vancouver, B.C. – Northisle Copper and Gold Inc. (TSX-V: NCX, OTCQX: NTCPF) (“Northisle” or the “Company”) is pleased to provide an update on its progress at the North Island Project during 2025 and to highlight the Company’s execution plan for 2026.

Sam Lee, President & CEO commented “2025 was a transformational year for Northisle. We demonstrated the robust economic and strategic merits of the North Island Project and are now advancing the project in a disciplined and responsible manner. In parallel, we are pursuing what we believe to be a significant copper-gold opportunity across our 40-kilometre, 100%-owned porphyry district, supported by a systematic, district-wide exploration program designed to expand resource grade, project scale, and long-term optionality.

We continue to build a leading technical and operational team, strengthening our ability to execute our high-growth, value-creation strategy. Our progress is underpinned by strong, respectful partnerships with First Nations and ongoing engagement with Municipal, Provincial, and Federal governments, supporting responsible development, environmental stewardship, and a clear permitting pathway in a stable, low-risk jurisdiction.

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 2025 exploration campaign. Ten additional holes were drilled with the objective of expanding the West Goodspeed target. Results have further expanded the footprint of mineralization at West Goodspeed and provide additional confidence in the interpretation of the mineralized systems in the area while highlighting additional opportunities for future expansion. Drilling at the North Island Project continues to progress, focused on the infill and geotechnical assessment of the Northwest Expo and Red Dog deposits.

Sam Lee, President and CEO stated “Today’s results from West Goodspeed have further expanded the footprint of mineralization at the West Goodspeed target. Work has now commenced to bring West Goodspeed into the mineral inventory on the project, which will support our planned pre-feasibility study. Our exploration team is now focused on executing a comprehensive in-fill drilling program while advancing the exploration thesis for the overall property.”

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.”