Grande Portage Resources Ltd. · TSXV:GPG
Grande Portage Resources — Investor Presentation (August 2026)
16 slides from Grande Portage Resources's investor presentation, Aug 13, 2026
Slide 1: New Amalga Gold Project: Alaska's Next Million-Ounce Gold Mine
TSXV: GPG | OTCQX: GPTRF | FSE: GPB Discover. Develop. Grow New Amalga Gold Project Alaska’s Next Million-Ounce Gold Mine
Slide 2: Forward Looking Information and Technical Information
Forward Looking Information and Technical Information TSXV: GPG | OTCQX: GPTRF | FSE: GPB Information set forth in this presentation may contain forward-looking statements. Forward-looking statements are statements that relate to future, not past, events. In this context, forward-looking statements
Slide 3: New Amalga Gold Project
New Amalga Gold Project TSXV: GPG | OTCQX: GPTRF | FSE: GPB • Within the Juneau Gold Belt Kensington Mine (active) • a proven district, produced +8M oz Cascade Point Area of Detail (proposed ore terminal) • Location Discover. Develop. Grow • 4 miles from existing Glacier Hwy Amalga Gold Camp (histor
Slide 4: Geology and Resource
Geology and Resource TSXV: GPG | OTCQX: GPTRF | FSE: GPB • Appx 60,000m of drilling delineating a major mesothermal gold-quartz system with at least six large, long gold bearing veins • 240 holes from 55 locations • Numerous geological similarities to the Kensington Mine Discover. Develop. Grow oper
Slide 5: Proposed Direct-Ship Development Strategy
Proposed Direct-Ship Development Strategy TSXV: GPG | OTCQX: GPTRF | FSE: GPB UG mine with efficient transportation ~15% conventional mine footprint eliminating need for: for offsite ore processing • Mill complex or chemical processing reagents • Tailings or waste rock disposal facilities • Camp fac
Slide 6: Conceptual Surface Facilities
Conceptual Surface Facilities TSXV: GPG | OTCQX: GPTRF | FSE: GPB * Discover. Develop. Grow Note: all designs shown in this *Sent underground and completely presentation are conceptual works- removed during mine operations; no in-progress and will be revised based on further data collection & waste
Slide 7: Conceptual Underground Mine
Conceptual Underground Mine TSXV: GPG | OTCQX: GPTRF | FSE: GPB Discover. Develop. Grow Note: all designs shown in this presentation are conceptual works-in-progress and will be revised based on further data collection & engineering prior Several veins open for to environmental review & permitting.
Slide 8: Sensor-based Ore Sorting Testwork
Sensor-based Ore Sorting Testwork TSXV: GPG | OTCQX: GPTRF | FSE: GPB Output: Sorted Product 12.9 g/t Au Grade Discover. Develop. Grow 57% Mass Reduction 94% Gold Recovery Nearly all waste rock removed Input: Core Samples 5.9 g/t Au Grade 55% Waste (wall rock) 45% Mineralized Vein Material Reflectiv
Slide 9: Conceptual Ore Transportation
Conceptual Ore Transportation TSXV: GPG | OTCQX: GPTRF | FSE: GPB Goldbelt – Alaska Native Corporation representing Juneau – and Alaska Department of Transportation & Discover. Develop. Grow Public Facilities are developing a portion of the site for Alaska Marine Highway System ferry terminal. Grand
Slide 10: PEA Results
PEA Results TSXV: GPG | OTCQX: GPTRF | FSE: GPB • Mine Output • Avg ~1,150 t/d mined, ~850 t/d shipped • 13.6 g/t (0.40 oz/ton) avg mined grade • 17.6 g/t (0.51 oz/ton) avg shipped grade after sorting • High-grade targeted first; production is front-loaded to Cascade Point (proposed ore terminal) ma
Slide 11: 2026 Activities
2026 Activities TSXV: GPG | OTCQX: GPTRF | FSE: GPB • Drill Program • Hydrogeological (groundwater), geotechnical and resource definition • Meteorological Stations • Two stations near planned facilities locations Discover. Develop. Grow • Gather weather data for state air permitting and NEPA • Remai
Slide 12: Road Easement
Road Easement TSXV: GPG | OTCQX: GPTRF | FSE: GPB • Initial road segment on State Land will enable construction of helipad Discover. Develop. Grow and staging areas • Reduce helicopter noise impacts in Mendenhall Valley • Segment encompasses appx 35% of total distance to minesite • Remainder of road
Slide 13: Targeted Timeline to Production
Targeted Timeline to Production TSXV: GPG | OTCQX: GPTRF | FSE: GPB Discover. Develop. Grow Project timeframe is dependent on several factors including: • Timely Availability of Capital – to fund engineering, environmental studies for permitting, and ultimately construction • Regulatory Agencies – a
Slide 14: US Forest Service NEPA Modernization (Apr 2026)
US Forest Service NEPA Modernization (Apr 2026) TSXV: GPG | OTCQX: GPTRF | FSE: GPB • Unified USDA Framework: Consolidated seven agency-specific regulations into a single, streamlined department-wide rule to ensure administrative consistency. • Expanded Categorical Exclusions (CEs): Forest Service c
Slide 15: Corporate & Share Structure (as at August 12, 2026)
Corporate & Share Structure (as at August 12, 2026) TSXV: GPG | OTCQX: GPTRF | FSE: GPB Management Current and Outstanding: 204,339,066 Ian Klassen, B.A. (Hons.) – President & CEO Kyle Mehalek, PE – Mine Planning & Development Options: 9,675,000 Michele Pillon – Chief Financial Officer Carl Hale, P.
Slide 16: Thank You
TSXV: GPG | OTCQX: GPTRF | FSE: GPB Discover. Develop. Grow Thank You Suite 1050-1090 West Georgia Street Vancouver, BC. V6E 3V7 604-899-0106 Info@grandeportage.com www.grandeportage.com
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