Great Boulder Resources Ltd · ASX:GBR
Great Boulder Resources — Investor Presentation (February 2025)
21 slides from Great Boulder Resources's investor presentation, Feb 11, 2025
Slide 1: Defining a New Multi-Million Ounce Gold Hub in Western Australia
For personal use only DEFINING A NEW MULTI-MILLION OUNCE GOLD HUB IN WESTERN AUSTRALIA SIDE WELL GOLD PROJECT February 2025 | ASX:GBR GREATBOULDER.COM.AU
Slide 2: Meekatharra Gold Hub
ASX:GBR MEEKATHARRA GOLD HUB Defining a new multi-million-ounce gold camp ▪ Targeting 1.5Moz at Side Well (current MRE 668koz @ For personal use only 2.8g/t Au) ▪ High-value ounces close to existing milling infrastructure - <25km from Westgold’s Bluebird mill (1.8Mtpa) ▪ Unlocking a large-scale hydr
Slide 3: Corporate Overview
ASX:GBR CORPORATE OVERVIEW A well-funded explorer guided by 140 years of exploration experience CAPITAL STRUCTURE BOARD & MANAGEMENT For personal use only 759M ~$33M SHARES ON ISSUE MARKET CAP ASX: GBR At $0.043/sh ~$5.3M Nil CASH DEBT As at 31/12/24 Collins St Asset Management & Related Parties (9.
Slide 4: Side Well: Pathway towards mine development
ASX:GBR SIDE WELL Developing a high-grade stand-alone mining opportunity in the Murchison Pathway towards mine development For personal use only Side Well snapshot Development Pathway 2025 JORC Resource Resource Target 668koz @ 2.8g/t Au1 1.5Moz @ +2.5g/t Au2 Mining Leases in Progress Granted Mining
Slide 5: Side Well Mineral Resource Estimate Updated
ASX:GBR SIDE WELL Mineral Resource Estimate Updated – November 2023 Mineral Resource Estimate incorporating all drilling to Sept 2023 For personal use only INDICATED INFERRED TOTAL Tonnes Au Tonnes Au Tonnes Au Deposit Ounces Ounces Ounces (kt) (g/t) (kt) (g/t) (kt) (g/t) Mulga Bill 2,399 3.3 252,00
Slide 6: Excellent metallurgical recoveries
SIDE WELL Excellent metallurgical recoveries For personal use only ▪ Testing on the full range of Mulga Bill ore types in MET-4 Grind Optimisation Tests January 2025 confirmed excellent recoveries from 100% gravity + cyanide leach Overall Gold Extraction (%) 90% ▪ High gravity recoveries up to 82% (
Slide 7: A large-scale intrusive-related gold system
ASX:GBR SIDE WELL A large-scale intrusive-related gold system ▪ Mulga Bill – A large, high-grade intrusive-related gold system For personal use only ▪ The +18km Ironbark Corridor is the stratigraphic equivalent of the Paddy’s Flat group of mines ▪ Vein-hosted gold grades up to 3,160g/t Au at Mulga B
Slide 8: Mulga Bill: Sensational high-grade gold mineralisation
ASX:GBR MULGA BILL Sensational high-grade gold mineralisation ▪ MRE 568,000oz @ 2.7g/t Au* For personal use only ▪ Drilling has returned consistent high-grade results: – 6m @ 589.44/t Au from 114m – 14m @ 36.12g/t Au from 91m – 15m @ 35.82g/t Au from 88m – 8m @ 54.60g/t Au from 120m ▪ Resource occup
Slide 9: Mulga Bill: Significant growth potential
ASX:GBR MULGA BILL Significant growth potential ▪ Mulga Bill is part of a very large mineralised system For personal use only ▪ Open at depth; high grade structures plunging north ▪ Overall strike >2.5km defined by drilling GREATBOULDER.COM.AU 9
Slide 10: Mulga Bill Deeps
ASX:GBR MULGA BILL DEEPS Deeper holes testing stacked lodes, grade and alteration at depth For personal use only ▪ Mulga Bill has the same spatial extent as WGX’s 2Moz Bluebird group* * Resources 10.7Mt @ 2.79g/t Au for 960koz: ASX announcement 23/9/2024 GREATBOULDER.COM.AU 10
Slide 11: Ironbark: Near surface, high-grade mineralisation
ASX:GBR IRONBARK Near surface, high-grade mineralisation ▪ MRE: 100,000oz @ 3.3g/t Au For personal use only ▪ Ore from surface ▪ Simple, tabular geometry ▪ Broad zones of shallow gold mineralisation over a 500m strike – 5m @ 51.65g/t Au from 106m – 21m @ 3.56g/t Au from 21m – 19.25m @ 5.22g/t Au fro
Slide 12: Ironbark: Mining Lease application in progress
ASX:GBR IRONBARK Mining Lease application in progress For personal use only ▪ Mining Lease lodged over Ironbark in June 2023 ▪ Mining Agreement negotiation progressing ▪ Provides optionality for early cashflow and non-dilutive funding GREATBOULDER.COM.AU 12
Slide 13: Saltbush discovery – an Ironbark analogue
ASX:GBR IRONBARK CORRIDOR Saltbush discovery – an Ironbark analogue For personal use only ▪ Same geology & alteration as Ironbark within a +2km Au-As anomaly ▪ First drill program: high-grade hits at Saltbush – 10m @ 6.47g/t Au from 117m, incl. 3m @ 18.59g/t Au – 12m @ 2.16g/t Au from 69m incl. 4m @
Slide 14: Growth Targets 1: Ironbark to Saltbush
ASX:GBR IRONBARK CORRIDOR Growth Targets 1: Ironbark to Saltbush For personal use only ▪ Heat maps of Ironbark-style (left) and Mulga Bill-style (right) pathfinder anomalism generated from auger sampling ▪ Several areas defined with a larger and stronger geochemical response than the Ironbark discov
Slide 15: Growth Targets 2: Saltbush to Side Well South
ASX:GBR IRONBARK CORRIDOR Growth Targets 2: Saltbush to Side Well South For personal use only ▪ Two large, high-tenor geochemical anomalies are currently being drilled ▪ 2.4km Ironbark-style target (north) ▪ 1.4km Mulga Bill-style target (south) ▪ 3m @ 4.16g/t Au within 23m @ 0.94g/t Au: a new disco
Slide 16: Looking Ahead
ASX:GBR LOOKING AHEAD Resource growth & development to underpin technical studies For personal use only ▪ Resource development and definition drilling at Mulga Bill North ▪ Discovery drilling testing multiple new targets: Ironbark Corridor, Matilda, Side Well South, Polelle Project ▪ Additional meta
Slide 17: Regional Gold Projects: Polelle & Wanganui
ASX:GBR REGIONAL GOLD PROJECTS Polelle & Wanganui (Option to acquire 75%) Polelle Project For personal use only ▪ 12km south of Meekatharra & 8km east of the Westgold Bluebird mill ▪ A similar stratigraphic position to Side Well ▪ Previous geochemistry & heritage work presents immediate drill target
Slide 18: Other Projects
ASX:GBR OTHER PROJECTS High quality Gold & Base Metal projects in Western Australia Gold / Nickel Zinc / Lead For personal use only Whiteheads, Kalgoorlie Wellington, Earaheedy Basin 319km2 of highly prospective and Along strike from Rumble strategic tenure located c.40km Resources’ (ASX:RTR) large
Slide 19: Why Invest in GBR?
ASX:GBR WHY INVEST IN GBR? For personal use only Side Well is an opportunity to unlock a long-life mining project: • Large intrusive-related gold system • High grade • <25km from the nearest mill Technically focused exploration team with a strong track record of discovery Undertaking smart, innovati
Slide 20: Important Information
IMPORTANT INFORMATION 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 For personal use only background information on GBR, its projects and its proposed operations. Th
Slide 21: Thank You
THANK YOU For personal use only GREATBOULDER.COM.AU 21
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