Mr. Nicholas Van Dyk reports

NORTHISLE ANNOUNCES C$100 MILLION FINANCING

NorthIsle Copper and Gold Inc. has entered into an agreement with Paradigm Capital Inc. as lead agent and sole bookrunner on behalf of a syndicate of agents in connection with a best effort public offering for total gross proceeds of up to approximately $100,000,350, consisting of up to 32,787,000 common shares of the company at a price of $3.05 per common share.

In addition, the company has granted the agents an option to sell up to 4,919,000 additional common shares at the issue price for additional aggregate gross proceeds of up to $15,002,950, exercisable not later than 48 hours prior to the closing date (as defined below). The term brokered offering includes the additional common shares that may be issued on the exercise of the agent option, if any.

The brokered offering is anticipated to include participation from new and existing fundamental institutional investors and existing cornerstone shareholders.

The net proceeds of the offerings will be used by the company for advancement of the company's projects and for general corporate and working capital purposes.

Closing is expected to occur on or about March 6, 2026, or other such date as the company and the agents may agree. The offerings will be subject to the receipt of all necessary regulatory approvals, including the approval of the TSX Venture Exchange, and other customary closing conditions.

The common shares offered pursuant to the brokered offering will be offered in all the provinces and territories of Canada, other than Quebec, on a best effort basis by way of a prospectus supplement to the company's short form base shelf prospectus dated Feb. 25, 2026. Access to the prospectus supplement, the corresponding base shelf prospectus and any amendment to the documents are provided in accordance with securities legislation relating to procedures for providing access to a shelf prospectus supplement, a base shelf prospectus and any amendment to the documents. The base shelf prospectus is accessible, and the prospectus supplement will be accessible within two business days, through SEDAR+. The common shares offered pursuant to the brokered offering may also be sold outside of Canada and in the United States on a private placement basis pursuant to available exemptions in accordance with all applicable laws and provided that no prospectus or registration statement filing or comparable obligation arises.

An electronic or paper copy of the shelf prospectus supplement, the corresponding base shelf prospectus and any amendment to the documents may be obtained, without charge, from Paradigm Capital by e-mail at ecm@paradigmcap.com by providing the contact with an e-mail address or address, as applicable.

About NorthIsle Copper and Gold Inc.

NorthIsle is a Vancouver-based company whose vision is to become Canada's leading sustainable mineral resource company for the future. NorthIsle, through its 100-per-cent-owned subsidiary North Island Mining Corp., owns the North Island project, which is one of the most promising copper and gold porphyry projects in Canada. The North Island project is located near Port Hardy, B.C., on a more than 34,000-hectare block of mineral titles 100 per cent owned by NorthIsle on a belt stretching 50 kilometres northwest from the closed Island copper mine operated by BHP Billiton. Since 2021, the company has discovered two significant deposits, expanded resources, demonstrated the economic potential of the project and is focused on the development of this compelling project while exploring within this highly prospective land package.

NorthIsle respectfully acknowledges that its North Island project is located within the territories of Quatsino First Nation, Kwakiutl First Nation and Tlatlasikwala First Nation. It is committed to collaborating with first nations to build authentic, mutually beneficial relationships.

We seek Safe Harbor.