Great Boulder Resources Ltd · ASX:GBR
Great Boulder Resources — Resources Rising Stars Conference 2026
24 slides from Great Boulder Resources's conference presentation, Sep 9, 2026
Slide 1: Great Boulder to present at Resources Rising Stars Conference, Gold Coast
ASX ANNOUNCEMENT 9 September 2026 GREAT BOULDER TO PRESENT AT RESOURCES RISING STARS CONFERENCE, GOLD COAST Great Boulder Resources Ltd (ASX: GBR) is pleased to provide an updated Corporate Presentation which will be delivered by Andrew Paterson, Managing Director, to the Resources Rising Stars Inve
Slide 2: Emerging producer with two major gold hubs in the Murchison
EMERGING PRODUCER WITH TWO MAJOR GOLD HUBS IN THE MURCHISON September 2026 | ASX:GBR GREATBOULDER.COM.AU
Slide 3: Murchison Gold Powerhouse
MURCHISON GOLD POWERHOUSE Emerging gold producer rapidly growing in scale TOTAL JORC RESOURCE DUAL HUB GROWTH STRATEGY 1.50 Anchored by Side Well (1.02Moz @ 2.0g/t Au) and Peak Hill (481koz @ 1.6g/t Au)2 in WA's premier Murchison Moz Au region. Rapid near-term pipeline targeting major growth at both
Slide 4: Murchison Gold Powerhouse
MURCHISON GOLD POWERHOUSE Emerging gold producer rapidly growing in scale Milestone Rich Timeline: MARKET CAP $197 M H2 2026: 60,000m drilling & updated H1 2027: Mining studies, approvals & EOY 2027: Target commencement of (at 10.0c/share) Peak Hill JORC MRE "Mining Ready" status gold production CAS
Slide 5: A Compelling Murchison Growth Story
A COMPELLING MURCHISON GROWTH STORY 1.5Moz Development story with a strong growth pipeline 60,000m drilling campaign underway; up to 6 rigs at Peak Hill & Side Well Peak Hill Gold Project Side Well Gold Project • Mineral Resource Estimate of 9.4Mt • High-grade Mineral Resource @ 1.6g/t Au for 481,00
Slide 6: Prolific Gold Mineralisation with Massive Growth Potential
PROLIFIC GOLD MINERALISATION WITH MASSIVE GROWTH POTENTIAL Peak Hill Gold Project 481,000oz Au Exploration Target2 from resource1 600koz to 740koz • Ore purchase agreement with Westgold • Aboriginal heritage and Native Title Mining Agreements in place • 4 historic open pits last mined in 1997; at th
Slide 7: 40,000m Drill Program in the Current Half-Year
40,000M DRILL PROGRAM IN THE CURRENT HALF-YEAR Exceptional exploration potential outside the current resource Initial drilling will prioritise follow-up of previous results including 19m @ 13.34g/t Au at Golden Treasure Immediate High-Grade Success1 DURACK JUBILEE ENIGMA & • 4m @ 37.1g/t Au from 110
Slide 8: Jubilee: Shallow Mining Opportunity
JUBILEE: SHALLOW MINING OPPORTUNITY Jubilee See GBR ASX announcement of 24 August & 7 September 2026. ASX: GBR 7
Slide 9: Durack: No Previous Mining; Initial Grades Exceeding Expectations
DURACK: NO PREVIOUS MINING; INITIAL GRADES EXCEEDING EXPECTATIONS Durack See GBR ASX announcement of 7 September 2026. ASX: GBR 8
Slide 10: Golden Treasure – High Grade Results for Follow Up Drilling
GOLDEN TREASURE – HIGH GRADE RESULTS FOR FOLLOW UP DRILLING GBR is following up high-grade intersections drilled by Westgold in 20251 which targeted historic workings at Treasure – Consols – Eldorado areas Drilling data compiled from Westgold Resources 2025 Peak Hill RC drilling program includes: •
Slide 11: Mt Pleasant – Harmony – Five Ways
MT PLEASANT – HARMONY – FIVE WAYS Mt Pleasant Harmony Five Ways • No MRE at Mt Pleasant • Initial MRE1 at Harmony • Historic high-grade Peak Hill Underground mine • Remnant flat-lying, shallow gold mineralisation • Depth extensions to current resource to be tested • Shallow-dipping, open down dip &
Slide 12: Side Well Gold Project
SIDE WELL GOLD PROJECT ASX: GBR
Slide 13: Fast-Tracking Side Well Towards Production
FAST-TRACKING SIDE WELL TOWARDS PRODUCTION Strategic collaboration agreement with largest shareholder Westgold (19.9%) to fast-track mining Overview Project with 1.02Moz Located in WA's fastest- Proximity to Westgold’s of high-grade gold growing gold region Bluebird and Fortnum Mills Our advantage T
Slide 14: Mulga Bill & Eaglehawk Deposit
MULGA BILL & EAGLEHAWK DEPOSIT High-grade gold mineralisation with massive growth potential Exceptional Drilling Results 6m @ 1.93m @ 14m @ 15m @ 589.44g/t Au 574.39g/t Au 36.12g/t Au 35.82g/t Au from 114m1 from 502m2 from 91m3 from 88m4 Resource Scale • Exceptional metallurgical characteristics6 •
Slide 15: Mulga Bill Deposit
MULGA BILL DEPOSIT Spectacular gold at depth points to massive growth upside Recent results point to high-grade upside below the 2.5km-long combined resource 1.93m @ Upside Follow-up 574g/t Au Potential Deep diamond ~430m below Current combined drilling is surface MRE is 782koz continuing Follow-up
Slide 16: Ironbark Deposit
IRONBARK DEPOSIT Near-surface, high-grade resource Significant upside potential at low cost High Grade Results, open along strike and at depth Resource High-Grade Drilling 122koz @ 5m @ 12m @ 19.25m @ 2.7g/t Au1 51.65g/t Au 10.24g/t Au 5.22g/t Au from (open to the south) from 106m2 from 120m3 121m4
Slide 17: Unlocking Potential & GBR's Vision
UNLOCKING POTENTIAL & GBR’S VISION ASX: GBR
Slide 18: Multi-Rig Programmes to Unlock Potential
MULTI-RIG PROGRAMMES TO UNLOCK POTENTIAL Drilling progressing rapidly at Peak Hill Over 60,000m (up to 6 rigs) planned for Peak Hill and Side Well between July and the end of this year 2026 2027 Q3 Q4 Q1 Q2 Q3 Q4 Drilling RESOURCE INFILL / EXTENSIONAL GROWTH TARGETS Resource Estimation MRE Pre-appro
Slide 19: Great Boulder's Vision: A Compelling Investment Opportunity
GREAT BOULDER’S A COMPELLING INVESTMENT VISION OPPORTUNITY Transformational Transaction to create a Murchison Powerhouse The Strategic Vision: A Murchison Powerhouse #1 #2 Near-term, Capital-light Significant drilling news flow The Murchison Gold Project has two Production over the coming months maj
Slide 20: End
END ASX:GBR | GREATBOULDER.COM.AU
Slide 21: Corporate Overview
CORPORATE OVERVIEW Experienced Leadership Team Our team combines over 150 years of mining expertise, with a strong mix of technical and corporate Andrew Paterson Chris Tuckwell Melanie Leighton background Managing Director Non-Executive Chairman Non-Executive Director Andrew Paterson 30+ years in mi
Slide 22: Side Well
SIDE WELL Mineral Resource Estimate Updated – December 2025 Mineral Resource Estimate incorporating all drilling to Sept 20251,2 Resource quality Indicated Inferred Total metrics significantly Tonnes Ounces Tonnes Ounces Tonnes Ounces Deposit (kt) Grade (g/t) (Au) (kt) Grade (g/t) (Au) (kt) Grade (g
Slide 23: Peak Hill
PEAK HILL Peak Hill Resource Estimates Peak Hill JORC 2012 Mineral Resource Estimates1,2 Current mineral Deposit Classification Tonnes Grade (g/t Au) Ounces Cut-off parameters resource estimates are quoted at various Harmony Indicated 939,000 1.8 55,000 Reported at 0.8g/t Au above a pit shell Inferr
Slide 24: Peak Hill Exploration Target
PEAK HILL Exploration Target • The potential quantity and grade of the Exploration Target Range From Exploration Target Range To Exploration Target is conceptual in nature and, as such, there has been insufficient Prospect Tonnes Grade Ounces Tonnes Grade Ounces exploration drilling conducted to est
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