Great Northern Minerals Limited · ASX:GNM
Great Northern Minerals — Investor Presentation (October 2025)
20 slides from Great Northern Minerals's investor presentation, October 2025
Slide 1: Catalyst Ridge Antimony & Rare Earths Project
CATALYST RIDGE ANTIMONY & RARE EARTHS PROJECT Strategically Positioned in World-Class Mountain Pass District ASX: GNM Corporate Presentation October 2025 1
Slide 2: Disclaimer
Disclaimer This presentation has been prepared by Great Northern Minerals Ltd ACN 000 002 111 (‘GNM’ or the ‘Company’) for the purpose of FOR providing general background information about the Company as at the date of the presentation. It is not intended for distribution to, or CONSIDERATION use by
Slide 3: Great Northern Investment Highlights
Great Northern Investment Highlights US focused REE & Supply Chain US Policy Tailwinds Bilateral Government Antimony explorer Implications Support 2025 Executive Order & US and Australian Governments Strong in-country US-China trade restrictions Presidential Memorandum critical minerals and rare ear
Slide 4: Corporate Snapshot
Corporate Snapshot 431,629,077 $36.3m Shares on Issue - Post Market Capitalisation - BOARD AND MANAGEMENT Completion (undiluted)1 Post Completion ($0.084 @ 21/10/25)2 $3.6m $32.7m Cash at Bank - Post Enterprise Value - Post Completion3 Completion3 $8.1m $0.5m ARIEL (EDDIE) KING CLARISSA CHUA Explora
Slide 5: Strategic Appointment of US Team
Strategic Appointment of US Team • Greg Schifrin appointed as US Critical Metals Geology Expert to lead GNM’s critical mineral exploration activities in the United States • Greg Schifrin is a highly respected geologist and mining executive with over 36 years of experience in critical mineral explora
Slide 6: Building a US Critical Minerals Business
Building a US Critical Minerals Business Unlocking Local Supply of critical metals for securing North America’s Strategic Future Mountain Pass Highly Prospective for Strong In-Country District, California In-Demand Minerals Presence Project next to producing Antimony & REE Project US Critical Metals
Slide 7: Catalyst Ridge Project Overview
Catalyst Ridge Project Overview • Rare earth elements (REE) and Antimony project located in Mountain Pass District, in California’s Mojave Desert • Catalyst Ridge comprises 214 Lode Mining Claims in the Mojave-Mountain Pass Corridor • Claims adjacent to the Mountain Pass mine and Dateline Resources
Slide 8: Catalyst Ridge Project - Regional Geology
Catalyst Ridge Project - Regional Geology • The geology of the region is such that the REE deposits occur in a 2.5-kilometre-wide north-west trending zone in Mesoproterozoic rocks that are dated at 1.3-1.4 billion years old • Mojave-Mountain Pass Corridor characterised by 10km-long, underexplored RE
Slide 9: Geological & Geophysical Review
Geological & Geophysical Review • The western block of the Catalyst Ridge claims are located within the early Proterozoic granites that host the Mountain Pass REE deposit and associated occurrences • The eastern and northern blocks occur within the overlaying Permian to Devonian limestones that conc
Slide 10: Initial Exploration Program
Initial Exploration Program • A comprehensive desktop geological study has been completed across the Catalyst Ridge Project • The initial exploration program will focus on rock ship sampling with a particular focus on high priority Rare Earth Elements (REE) and Antimony target areas based on structu
Slide 11: Target Areas for Initial Exploration
Target Areas for Initial Exploration Target 1 • Selected based on prominent NW-structure sub-parallel to structures that control the Mountain Pass REE deposit • Includes interesting copper occurrences along the trend line that are worthy of follow up given REE deposits can be associated with copper
Slide 12: Next steps
Next steps Planned near-term activities Status/timing Commence initial sampling program across project area In progress - to be finalised by with focus on targets and structures identified in mid October 2025 geophysical review Receive results from initial sampling program Mid November 2025 Review o
Slide 13: Key Takeaways
Key Takeaways US demand for Right location, right Fast-track to Timing critical minerals price drilling Both antimony and Cheapest valuation Geochemical Geopolitical trade REE have been of all ASX players in sampling program climate, pricing and classified as critical Mojave-Mountain commenced; US r
Slide 14: For more information contact Scott Downsborough General Manager
For more information contact Scott Downsborough General Manager Tel: +61 8 9481 0389 ASX: GNM greatnorthernminerals.com.au 14
Slide 15: Appendices
e§ GNM Sed Sreat Northern Minerals APPENDICES
Slide 16: Staking and Lode Mineral Claims in America
Staking and Lode Mineral Claims in America The General Mining Law of 1872 One of the oldest and most significant mining laws in the United States. If minerals are located on federal lands, rights are administered by the Bureau of Land Management (BLM) Lode Claims A lode claim runs 1,500 ft long and
Slide 17: New Era for US Critical Minerals
New Era for US Critical Minerals • Executive Orders Driving Urgency 2025 Presidential directives function to accelerate Domesticating Critical Minerals Supply and support critical mineral projects. Recent directive from the US Department of War, prohibiting the use of Chinese-origin rare earth Execu
Slide 18: Rare Earth Element & Antimony Supply Risk
Rare Earth Element & Antimony Supply Risk Rare Earth Elements are Critical to the Economy • Rare earth elements are a group of 17 elements that are critical for modern technologies • China produces ~70% and processes ~90% of the world’s rare earths, resulting in a North American vulnerability and ov
Slide 19: MP Materials
MP Materials (NYSE: MP) • US$400M DoD investment makes the Pentagon • MP Materials’ largest shareholder • US$150M federal loan supports • New “10X” facility aims at producing 10000tpa of REE magnets by 2028 • Transaction includes a 10-year price floor of US$110/kg NdPr, significantly higher than pre
Slide 20: Mountain Pass Area Neighbour Comparison
Mountain Pass Area Neighbour Comparison DTR 0.465 AUD -0.005 -1.06% 0.3 0,465 0.440 0.375 0.315 0.15 Share Share Price Price 0.250 0.190 0.125 0 Jan Feb Mar Apr May June July Aug 2025 Sept Oct 2025 0.063 2025 2025 2025 2025 2025 2025 2025 2025 Feb Apr May Jun Jul Aug Sep 17 Source: Investing.com Dat
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