Grande Portage Resources Ltd.

Grande Portage is a publicly held junior resource company (TSXv-GPG) focused solely on the exploration and development of its 100% interest in the New Amalga Mine Project, located 25km north of Juneau, Alaska only 6km from paved highway. The company’s exploration efforts have resulted in >1000% growth to the New Amalga (formerly Herbert Gold) resource since acquiring the project, with a recent (June 2024) update to the NI 43-101 resource estimate:

ØIndicated: 1,438,500 oz @ 9.47 g/t Au avg. grade

ØInferred: 515,700 oz @ 8.85 g/t Au avg. grade

•Production strategy utilizing Direct Shipping Ore (DSO), avoiding an onsite processing plant and tailings facility to minimize CAPEX and expedite permitting

•LOI signed with Goldbelt, Incorporated (Juneau-based Alaska Native Corporation) for ore terminal development

•Preliminary Economic Assessment (PEA) in-progress for Q1 2026 based on DSO ore payability term sheet received in October 2025