Koba Resources Limited · ASX:KOB
Koba Resources — RIU Uranium Investment Day 2025
26 slides from Koba Resources's conference presentation, Sep 11, 2025
Slide 1: ASX Release: RIU Uranium Investment Day Presentation
11 SEPTEMBER 2025 ASX RELEASE RIU Uranium Investment Day Presentation Koba Resources Limited (ASX:KOB) attaches a copy of the presentation that its Managing Director Ben Vallerine will present at the RIU Uranium Investment Day conference at 11.45am (AWST) on 11 September 2025. Authorised for release
Slide 2: Yarramba Uranium Project: Three High-Grade Discoveries
ASX:KOB | kobaresources.com Yarramba Uranium Project Three High-Grade Discoveries in Australia’s Premier Uranium District RIU Uranium Investment Day 11 September 2025 Ben Vallerine Managing Director
Slide 3: Investment Highlights
Investment Highlights Tier One Location World Class District Prospective Ground Yarramba Project located in South Australia, Project is adjacent to successful uranium Yarramba Project comprises 5,000 km2 which the premier state for uranium exploration producer, Boss Energy in a district with include
Slide 4: Capital Structure
Capital Structure Shares on issue Share price Koba Share Price v Uranium Price 198.7m $0.031 Since Feb 2024 $105 $0.180 52 week high $0.18, low $0.029 $0.160 $95 $0.140 Options (A$0.08 - $0.30) Market capitalisation $0.120 57.7m $6.2m $85 $0.100 At $0.031 $75 $0.080 Performance rights Cash $0.060 $6
Slide 5: Koba's Flagship Yarramba Uranium Project
Koba’s Flagship Yarramba Uranium Project Located in a World-Class Uranium District Two operating in-situ recovery uranium mines nearby. • The Yarramba Project is located: • 120km southeast of the Beverley Uranium Operation: • 165Mlbs @ 2,766ppm U3O8 of resources.1 • Production of >40Mlbs of U3O8. •
Slide 6: Honeymoon Mine - 17km south of Koba's Yarramba Uranium Project
Honeymoon Mine - 17km south of Koba’s Yarramba Uranium Project Operated by Boss Energy Limited 5
Slide 7: Yarramba Palaeochannel
Yarramba Palaeochannel Globally significant uranium resources 50Mlbs of uranium resources in a 35km stretch of the Yarramba Palaeochannel. • Honeymoon Mine (Boss Energy) • 36Mlbs @ 660ppm U3O8 • 17km south of Koba’s Yarramba Project • Commercial production declared 1 January 2025 • Jason Deposit (Bo
Slide 8: Yarramba Uranium Project
Yarramba Uranium Project Over 250km of highly-endowed palaeochannels Strong potential for a significant uranium discovery. • Koba’s has over 5,000km2 of highly-prospective tenure which includes: • Over 250km of uranium-bearing palaeochannels. • Of which ~150km is the north and south extensions of th
Slide 9: Koba Made Three High-Grade Discoveries
Koba Made Three High-Grade Discoveries During maiden drilling program in 2024 - 2025 Discoveries at the Everest, Berber and Chivas Prospects. • Completed 123 holes for 12,800m during maiden drill program. • Berber has high-grade mineralisation delineated over 700m of strike with a best result of 1.6
Slide 10: Oban Uranium Deposit
Oban Uranium Deposit Initial drilling confirms shallow, high-grade mineralisation Potential to expand the resource base through step out drilling and discovery. • Significant results from Koba’s maiden drill program in 2024- 2025 include: • 3.9m @ 805ppm eU3O8 from 87.0m; including • 1.3m @ 1,261ppm
Slide 11: Oban Uranium Deposit: Significant results from previous drilling
Oban Uranium Deposit Significant results from previous drilling Consistent and contiguous high- grade mineralisation. • Contiguous drill results from a single section include: • 2.12m @ 2,236ppm eU3O8; • 2.65m @ 1,174ppm eU3O8; 2.12m @ 2,236ppm eU3O8 • 2.20m @ 1,502ppm eU3O8; and • 1.80m @ 1,306ppm
Slide 12: Berber and Chivas Prospects
Berber and Chivas Prospects High-grade uranium discoveries from step out exploration drilling Strong potential for resource expansion confirmed by these discoveries. • High-grade results from new discoveries include: • The Berber Prospect ~1.5km south of the Oban Deposit; and • The Chivas Prospect ~
Slide 13: Berber Prospect
Berber Prospect High-grade results - open in all directions Sparsely drilled 1500m corridor between Berber and the Oban Deposit. • Berber was first identified in the 1990s when ten holes were drilled. • Koba discovered thicker and higher-grade mineralisation >350m further east, with significant resu
Slide 14: Chivas Prospect
Chivas Prospect High-grade mineralisation remains open to the east Discovered with step out drilling 700m east of the Oban Deposit. • Significant uranium mineralisation identified in the initial step out drilling at the Chivas Prospect, 700m east of the Oban Deposit including: • 1.0m @ 629ppm eU3O8
Slide 15: 2,500m Drill Program Underway
2,500m Drill Program Underway Follow-up of recent high-grade discoveries • Initial follow-up program to target: • Extensions of high-grade mineralisation at both Berber and Chivas. • A sparsely drilled 1.5km corridor between Oban and Berber. • A new target east of Oban that has strong gamma peaks fr
Slide 16: Everest and Mt John Prospects
Everest and Mt John Prospects Northern continuation of the Yarramba Palaeochannel • Located in the southern part of the Yarramba Project. • 10.7Mlb Jason Uranium Deposit 4km to the south. Everest Drill rig in action during the discovery of the Everest Prospect. Regional plan of the Yarramba Uranium
Slide 17: Everest and Mt John Prospects
Everest and Mt John Prospects Northern continuation of the Yarramba Palaeochannel Numerous high priority targets identified within an initial 15km stretch of under- explored Yarramba Palaeochannel. • Significant mineralisation intersected previously just 850m south of Koba’s tenement. Drill results
Slide 18: Everest Prospect
Everest Prospect A significant discovery this year Multiple high-grade drill intercepts >1,000ppm eU3O8 over 4km of strike. • Initial discovery made when 22 broad spaced holes were drilled in February 2025. • High-grade results returned from initial broad-spaced drilling include: • 1.0m @ 558ppm eU3
Slide 19: Everest Prospect: A significant discovery
Everest Prospect A significant discovery Consistent mineralisation across multiple horizons. • Currently, drill lines are spaced 400m – 1200m apart. • Opportunity to delineate thicker and higher-grade mineralisation with infill drilling. • Mineralisation also remains open along strike and across tre
Slide 20: Significant Regional Potential
Significant Regional Potential 250km of palaeochannels to explore across 5,000km2 Numerous prospects to follow-up. • Previously identified prospects with limited and only broad-spaced drilling that have returned significant intercepts include: • Yarramba North – 2.0m @ 530ppm eU3O8. • Bingelly – 1.0
Slide 21: Experienced Board
Experienced Board Extensive uranium experience Mike Haynes Ben Vallerine Scott Funston Ian Cunningham Non-Executive Chairman Managing Director Non-Executive Director Company Secretary • 30 years’ experience in international • Founder and Managing Director of Koba • Proven executive level experience
Slide 22: Disclaimer
Disclaimer This presentation prepared by Koba Resources Limited (“Company”) does not purport to contain all the information that a statements reflect current expectations, intentions or strategies regarding the future and assumptions based on currently prospective investor may require in connection
Slide 23: Appendices
Appendices Drilling at the Oban Prospect
Slide 24: In-Situ Recovery (ISR)
In-Situ Recovery (ISR) Accounts for ~ 60% of global uranium production • Discoveries within the Yarramba Project will potentially be amenable to ISR mining like the neighbouring Honeymoon Mine. • Well understood and proven technology. • Low-cost mining method. • Reverses the natural process of urani
Slide 25: Nuclear Energy is a Clean Energy Source
Nuclear Energy is a Clean Energy Source Uranium spot price has gained 200% Uranium Spot Price $US/lb over 5 years, despite recent pullback As at 16 July 2025 $120 • Nuclear energy, using uranium as fuel, helps fight climate change by providing low-carbon power as an alternative to fossil fuels. $100
Slide 26: Growth in Nuclear Energy is driving increased demand for uranium
Growth in Nuclear Energy is driving increased demand for uranium Nuclear is a well-established industry with a supply demand gap • Approximately 440 nuclear reactors operate globally. • Countries are turning back to “clean” nuclear power with: • 60 nuclear reactors under construction; and • 110 nucl