Mr. Ian Klassen reports

GRANDE PORTAGE RESOURCES ANNOUNCES EXTENSION OF EXPIRY DATE FOR WARRANTS

Grande Portage Resources Ltd. has applied to the TSX Venture Exchange to extend the expiry date for 5.55 million of its outstanding unlisted common share purchase warrants. The warrants, each of which is currently exercisable to purchase one common share of the company at 30 cents per share, were originally issued by the company as part of non-brokered unit private placement financing completed in May, 2023. The company will extend the expiry date of the warrants to 4:30 p.m. PT on May 10, 2026, subject to TSX Venture Exchange approval.

The company currently has an aggregate of 5.55 million warrants issued and outstanding pertaining to the private placement, all of which are eligible for amendment, pursuant to the policies of the exchange.

About Grande Portage Resources Ltd.

Grande Portage Resources 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 km 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.

We seek Safe Harbor.