Great Boulder Resources Ltd · ASX:GBR
Great Boulder Resources — Resources Rising Stars Gold Coast Investor Conference 2025
24 slides from Great Boulder Resources's conference presentation, Sep 16, 2025
Slide 1: Great Boulder to present at Resources Rising Stars Gold Coast Investor Conference
ASX Announcement 16 SEPTEMBER 2025 GREAT BOULDER TO PRESENT AT THE RESOURCES RISING STARS GOLD COAST INVESTOR CONFERENCE Great Boulder Resources (“Great Boulder” or the “Company”) (ASX: GBR) is pleased to advise shareholders and investors that Managing Director Andrew Paterson will present at the Re
Slide 2: A Multi-Million Ounce Gold Hub in Western Australia
For personal use only A MULTI-MILLION OUNCE GOLD HUB IN WESTERN AUSTRALIA Side Well Gold Project September 2025 | ASX:GBR GREATBOULDER.COM.AU
Slide 3: Executive Summary
EXECUTIVE For personal use only SUMMARY ASX: GBR 2
Slide 4: Meekatharra Gold Hub
MEEKATHARRA GOLD HUB For personal use only Actively focused on advancing the Side Well A high-grade, stand-alone mining Gold Project opportunity in the Murchison Goldfield Large, under-explored A high-grade gold project area with resource of 668,000oz a strong pipeline growing to 1Moz in late of adv
Slide 5: The Opportunity
THE OPPORTUNITY Large, under-explored project area with a strong pipeline of targets For personal use only Overview Our flagship project Located in WA's fastest- Ironbark pre-tax NPV $137M at with 668,000oz of growing gold region A$5,064 (July 2025 spot gold high-grade gold price) Our advantage Tota
Slide 6: Capital Structure
CAPITAL STRUCTURE Strong Balance Sheet Growing Institutional Support For personal use only MARKET CAP $65M (at $0.065/share) 10.5% Domestic institutions CASH POSITION: $15M with no debt 4.6% $50M International institutions ENTERPRISE VALUE: SHARES OUTSTANDING 966.6M 1.3% Board and Executive Visible
Slide 7: Corporate Overview: Experienced Leadership Team
CORPORATE OVERVIEW Experienced Leadership Team For personal use only Our team combines over 150 years of mining expertise, with a strong mix of technical and corporate background Andrew Paterson Greg Hall Melanie Leighton Managing Director Non-Executive Chairman Non-Executive Director Andrew Paterso
Slide 8: Investment Highlights
INVESTMENT HIGHLIGHTS For personal use only World-Class Strategic Near-Term Massive Growth Resource Quality Location Cash Flow Potential 668koz @ 2.8g/t with a 496koz Central location in the Ironbark Scoping Study shows Strong pipeline of gold prospects high-grade core @ 5.3g/t and Murchison Gold Fi
Slide 9: Side Well Gold Project
SIDE WELL GOLD PROJECT A rapidly growing, large-scale gold system Strong growth Two High-Value Corridors For personal use only pipeline with Central Corridor multiple targets • Large intrusive-related gold system • Contains Mulga Bill (568koz @ 2.7g/t)1 and Eaglehawk deposits • Exceptional high-grad
Slide 10: Meekatharra Gold Hub
MEEKATHARRA GOLD HUB A high-grade, stand-alone mining opportunity Potential for Fast Track to Production Strong Economic Scenarios For personal use only exceptional returns Scoping Study Completed At A$4,500/oz: At A$5,064/oz (July spot): At A$5,500/oz: with minimal capital A$100M NPV, A$137M NPV, A
Slide 11: Side Well Gold Project: Central Corridor
SIDE WELL For personal use only GOLD PROJECT Central Corridor 10
Slide 12: Mulga Bill Deposit
MULGA BILL DEPOSIT High-grade gold mineralisation with massive growth potential World-class gold in a multi-kilometre gold system For personal use only Exceptional Drilling Results 6m @ 14m @ 15m @ 8m @ 589.44g/t Au 36.12g/t Au 35.82g/t Au 54.60g/t Au from 114m1 from 91m2 from 88m3 from 120m4 Resour
Slide 13: Mulga Bill to Eaglehawk
MULGA BILL TO EAGLEHAWK Projected long section shows the scale of this opportunity Large-scale For personal use only mineralised system spanning over two kilometres The combined Mulga Bill- Eaglehawk system spans over 2.3km - equivalent to Perth’s CBD skyline from King's Park to East Perth. This vis
Slide 14: Eaglehawk Deposit
EAGLEHAWK DEPOSIT The northern extension of Mulga Bill: shallow, high-grade gold For personal use only Northern extension offers significant resource expansion potential High-Grade Results Scale Potential Completely Open Underexplored Recent drilling Gold mineralisation No defined limits to Large pr
Slide 15: Side Well Gold Project: Eastern Corridor
SIDE WELL For personal use only GOLD PROJECT Eastern Corridor 14
Slide 16: Eastern Corridor
EASTERN CORRIDOR Multiple prospective targets spanning more than 22km of strike Exploration success This 22km+ corridor sits on the same geological For personal use only structure as the +3Moz Paddy's Flat gold camp - one shows large-scale of WA's most successful gold regions. gold system potential
Slide 17: Ironbark Resource
IRONBARK RESOURCE Near-surface, high-grade resource Significant upside potential at low cost For personal use only High Grade Results, open along strike and at depth Resource High-Grade Drilling 100koz @ 5m @ 12m @ 19.25m @ 3.3g/t Au1 51.65g/t Au 10.24g/t Au 5.22g/t Au from (open to the south) from
Slide 18: Additional Discovery Areas: Side Well South
ADDITIONAL DISCOVERY AREAS EASTERN CORRIDOR - SIDE WELL SOUTH Active discovery Side Well South For personal use only pipeline supports continuous New Discovery Gold zones adjacent to historic Golden resource growth Bracelet mine1 Scale 200m+ strike length (open north and south) Timeline Resource def
Slide 19: Additional Discovery Areas: Tal Val
ADDITIONAL DISCOVERY AREAS EASTERN CORRIDOR - TAL VAL Active discovery Tal Val (Southern End) For personal use only pipeline supports continuous Proven Continuity Recent sampling confirms resource growth mineralisation continues New Targets Multiple gold targets up to 1.8km long1 Next Steps Heritage
Slide 20: Growth Pipeline
GROWTH PIPELINE A pathway to For personal use only Mapping & Soil Drill Resource Conceptual Sampling Testing Definition achieve million- ounce milestone in The 1Moz Mulga Bill 2025, with the next group phase of targets Eaglehawk delivering ongoing Ironbark growth from 2026 Saltbush Side Well South T
Slide 21: Key Metrics
KEY Market Cap Total Resource $65M 668koz @ 2.8g/t1 METRICS For personal use only High-Grade Core Ironbark NPV 496koz @ 5.3g/t1 A$137M2 Significant valuation disconnect Exploration Target Cash Position meets world-class assets under 940k-1.1Moz3 $15M, zero debt proven leadership - a compelling inves
Slide 22: Important Information
IMPORTANT INFORMATION For personal use only Purpose of presentation: This presentation has been prepared by Great Boulder Resources Limited (ACN 611 695 955) (GBR). It is intended for the sole purpose of providing high-level background information on GBR, its projects and its proposed operations. Th
Slide 23: Side Well Gold Project: Our Pathway to Development
SIDE WELL GOLD PROJECT Our pathway to development For personal use only Environmental Licence Technical Technical Approvals Applications Studies De-risking Programs commenced Flora/fauna baseline Mining Lease lodged over Scoping Study completed Metallurgical testing on complete, hydrogeology Ironbar
Slide 24: Mineral Resource Estimate Updated – November 2023
SIDE WELL Mineral Resource Estimate Updated – November 2023 Mineral Resource Estimate incorporating all drilling to Sept 2023 For personal use only Resource quality INDICATED INFERRED TOTAL metrics significantly Deposit Tonnes (kt) Au (g/t) Ounces Tonnes (kt) Au (g/t) Ounces Tonnes (kt) Au (g/t) Oun
Great Boulder Resources — Resources Rising Stars Gold Coast Investor Conference 2025 on 6ix