NorthIsle Copper and Gold

🎙️ We’re excited to announce that NorthIsle CEO Sam Lee will be one of the featured speakers at Mineral-X’s 2026 Silicon Valley Minerals Forum at Stanford University.

Sam and Chief James Nelson of the Quatsino First Nation will be featured in the panel: “New Member Spotlight: NorthIsle, combining excellence in , & ”

Mineral-X’s Silicon Valley Minerals Forum gathers industry experts from the critical minerals, mining innovation, investment, and sustainability landscape to learn about what’s next for responsible resource development and the energy transition.

We look forward to connecting with industry executives, investors, fellow researchers, and collaborators at the Stanford Doerr School of Sustainability June 16–17, 2026.

Learn more about Silicon Valley Minerals Forum 2026 - https://ow.ly/iM7O50Z3rg4

Vancouver, B.C. – Northisle Copper and Gold Inc. (TSX-V: NCX, OTCQX: NTCPF) (“Northisle” or the “Company”) is pleased to announce the results of drilling at the Red Dog deposit in 2025 and early 2026. A total of 8,112 metres of drilling were completed, including infill, geotechnical, and exploratory drill holes.

Drilling at Red Dog has achieved several important objectives. Infill drilling within the western, shallow core of the deposit has confirmed previous drilling results and further validated the presence of shallow, higher-grade mineralization in the deposit. Results from the central portion of the mineral resource were also consistent with the existing resource model and are expected to support increased confidence in the current resource estimate. Perhaps most significantly from an exploration perspective, drilling in the eastern portion of the deposit identified a previously unrecognized high-grade trend at depth. Historic drilling at Red Dog was largely focused on shallow mineralization, and these results highlight the potential for additional areas containing economic-grade mineralization that have not yet been incorporated into existing resource models.

Read the full news release: https://www.northisle.ca/news/northisle-announces-drill-results-at-red-dog-identify-emerging-high-grade-trend-in-eastern-portion-of-deposit/

Northisle Copper & Gold Inc (TSX.V: NCX | OTCQX:NTCPF) engaged investors in Dallas, TX this week as part of another Virtual Non-Deal Roadshow. Management focused on communicating the unique nature of its development pipeline and district-scale exploration potential. With a strong balance sheet and increasing interest from investors, First Nations, government, and other stakeholders, Northisle is well placed to continue advancing the North Island Project.

Key themes discussed during the Q&A include:
– Northisle's fully funded 2026 exploration program across its 50 kilometre porphyry district
– Increased confidence that new discoveries, including Northwest Expo and West Goodspeed,
have the potential to improve project economics
– Continued advancement of project optimization efforts to increase metallurgical recoveries and overall project value

Northisle also communicated its strategy to capitalize on improving copper and gold fundamentals while advancing what it believes to be a unique opportunity to unlock district scale potential within a tier-one jurisdiction.

🎥Watch replay: https://ow.ly/2grO50Z8Zqr

Northisle looks forward to participating in the Raymond James Copper Conference in Toronto next week.

As global demand for critical minerals intensifies and the focus on secure, long-life copper supply grows, we see the North Island Project as particularly well-positioned. We look forward to sharing our plans for exploration and development, discussing recent project milestones, and highlighting the opportunity we see for Northisle.

Northisle Copper and Gold is excited to announce our participation in THE Mining Investment Event 2026, which will be held June 1–4 in Québec City. THE Event is one of Canada’s top mining investment conference, designed to connect industry leaders, institutional investors, analysts, and mining executives from around the world.

Nicholas Van Dyk, Northisle’s CFO & EVP, will participate in the Critical Metals & Transition Energy session on June 3, delivering a corporate presentation and participating in a panel discussion entitled “Powering the Transition: Critical Metals.” If you are attending THE Event in Québec City, we invite you to connect with our team.

🔗Register here: https://ow.ly/p9tx50Z3r5B