Mr. Ian Klassen reports

GRANDE PORTAGE ANNOUNCES NON-BROKERED PRIVATE PLACEMENT - PURSUANT TO THE LISTED ISSUER FINANCING EXEMPTION

Grande Portage Resources Ltd. has arranged a non-brokered private placement of up to 10 million units at a price of 20 cents per unit for aggregate gross proceeds of up to $2-million. The offering is being carried out pursuant to Part 5A of National Instrument 45-106, Prospectus Exemptions, to purchasers resident in Canada, other than Quebec, and in jurisdictions outside of Canada in compliance with the applicable securities laws of those jurisdictions. There is an offering document related to this offering that can be accessed under Grande Portage's profile on SEDAR+ and on the company's website. Prospective investors should read the offering document before making an investment decision.

Each unit will consist of one common share in the capital of the company and one common share purchase warrant. Each warrant will entitle the holder thereof to acquire one additional common share at an exercise price of 26 cents per common share for a period of 36 months from the date of issuance.

The units issued in the offering will not be subject to any statutory hold period in Canada, subject to limitations prescribed by the limited issuer financing exemption (LIFE).

Insiders and certain other existing shareholders of Grande Portage may also subscribe for units under the offering.

Red Cloud Securities Inc. will act as a finder for the company in respect of the offering on a best efforts basis. As compensation for its services, the finder will receive cash compensation equal to 7 per cent of the gross proceeds of the offering raised by the finder. The finder will also receive non-transferable share purchase warrants, which will entitle the finder to acquire such number of common shares as is equal to 7 per cent of the number of units placed by the finder. The finder warrants will be exercisable at a price of 20 cents per share any time for a period of 36 months from the date of issuance.

Grande Portage intends to use the net proceeds of the offering for furthering the exploration and development of its New Amalga mine project in Alaska, including commissioning a preliminary economic assessment, as well as general working capital purposes.

The offering may close in multiple tranches, with the first tranche closing expected to occur on June 13, 2025, and the final closing to occur no later than July 7, 2025. The offering is subject to certain conditions, including, but not limited to, receipt of all necessary approvals, including the acceptance of the TSX Venture Exchange.

About Grande Portage Resources Ltd.

Grande Portage is a publicly traded mineral exploration company focused on advancing the New Amalga mine project, the outgrowth of the Herbert gold discovery, situated approximately 25 kilometres north of Juneau, Alaska. The company holds a 100-per-cent interest in the New Amalga property. The New Amalga gold system is open to length and depth, and is host to at least six main composite vein-fault structures that contain ribbon structure quartz-sulphide veins. The project lies prominently within the 160-kilometre-long Juneau gold belt, which has produced over eight million ounces of gold.

The company's updated National Instrument 43-101 mineral resource estimate (MRE) reported at a base case mineral resources cut-off grade of 2.5 grams per tonne gold (g/t Au) and consists of: an indicated resource of 1,438,500 ounces of gold at an average grade of 9.47 g/t Au (4,726,000 tonnes); and an inferred resource of 515,700 ounces of gold at an average grade of 8.85 g/t Au (1,813,000 tonnes), as well as an indicated resource of 891,600 ounces of silver at an average grade of 5.86 g/t Ag (4,726,000 tonnes); and an inferred resource of 390,600 ounces of silver at an average grade of 7.33 g/t silver (1,813,000 tonnes). The MRE was prepared by Dr. David R. Webb, PhD, PGeol, PEng (DRW Geological Consultants Ltd.), with an effective date of July 17, 2024. Additional information on the New Amalga mine project is available in the technical report, titled "Technical Report of the Herbert Gold Property, Juneau District, Southeast Alaska," dated July 17, 2024, which is available under Grande Portage's profile on SEDAR+.

We seek Safe Harbor.