Ioneer Limited · ASX:INR
Ioneer — IMARC Conference 2025
14 slides from Ioneer's conference presentation, Oct 21, 2025
Slide 1: IMARC Conference Investor Presentation
For personal use only IMARC Conference Investor Presentation INVESTOR PRESENTATION 21 October 2025 : IONR ASX : INR www.ioneer.com B Li 1
Slide 2: Disclaimer
Disclaimer This presentation has been prepared as a summary only and does not contain all information about ioneer Ltds Competent Persons Statement (ioneer or the Company) assets and liabilities, financial position and performance, profits and losses, prospects, and For personal use only In respect
Slide 3: Boron – Key Facts
Boron – Key Facts For personal use only • Commercially viable quantities found in very few places globally • Among the rarest ores on Earth • Southwest USA & Turkey account for ~80% of global production • Incredibly versatile, used in over 300 separate applications • Essential to modern life and cri
Slide 4: From Termites to Tanks
From Termites to Tanks Critical for Energy, Defense, Aerospace, Agriculture & Everyday Life Nuclear Aerospace & Defense Armor & Ballistics For personal use only Defense Missile & Aerospace Communications Systems Energy Semiconductor / Agriculture Glass & Chemicals Electronics 4 INVESTOR PRESENTATION
Slide 5: Boron – A global business sourced from two countries
Boron – A global business sourced from two countries • A 4Mt pa global business For personal use only • Boron mine in California produces ~30% of world supply (1Mt pa) • DoD consumed over 35kt of boron carbide for military applications in 2023 • ~73% boron reserves are found in Turkey Rhyolite Ridge
Slide 6: Rhyolite Ridge – A Very Rare Lithium-Boron Deposit
Rhyolite Ridge – A Very Rare Lithium-Boron Deposit For personal use only 1 Strong and resilient economics Lithium-Boron Project – NPV = $2.0B, IRR = 20.9% (levered) 2 260Mt Ore Reserve, 540Mt Mineral Resource, 3mtpa in Phase 1 operation 3 All-in sustaining cash cost of US$5,626 bottom quartile of gl
Slide 7: Proposed Rhyolite Ridge Process Plant
Proposed Rhyolite Ridge Process Plant Lithium and boron mined at Rhyolite Ridge will be processed into final products onsite For personal use only Sulphuric Acid Plant Evaporation / Ore Handling/ Sizing Crystallization and Storage Vat Leach Plant Sulphur Supply Lithium Carbonate Circuit Power Plant
Slide 8: Rhyolite Ridge A Very Rare Lithium and Boron Deposit
Rhyolite Ridge A Very Rare Lithium and Boron Deposit That will produce high-purity, refined chemicals in the U.S. For personal use only 8 INVESTOR PRESENTATION 21 October 2025 : IONR ASX : INR www.ioneer.com
Slide 9: Key Takeaways
Key Takeaways For personal use only A rare, long-life, permitted, shovel ready project in the U.S. with strong government support Unique Deposit Dual Revenue Shovel Ready Robust Expandable Economics A stable, secure, long-term supply of two products necessary for batteries, magnets, semiconductors a
Slide 10: Questions
Questions For personal use only Future U.S. Lithium & Boron Producer www.ioneer.com. ir@ioneer.com 10
Slide 11: Corporate Snapshot
Corporate Snapshot Capital Structure Research Coverage For personal use only (As at 20 Oct 2025) Shares Outstanding 2.7b Performance Rights And Options Outstanding 79.8m Cash Balance– 30 September 20251 US$21.8m Share Price ASX – 20 September 2025 A$0.21 ADR Price NASDAQ (1 ADR = 40 ASX Shares) US$5
Slide 12: Proven & Experienced Team
Proven & Experienced Team Experienced Board of Directors For personal use only JAMES D. CALAWAY BERNARD ROWE ALAN DAVIES ROSE McKINNEY-JAMES MARGARET WALKER TIM WOODALL Executive Chair Managing Director Non-executive Director Non-executive Director Non-executive Director Non-executive Director Forme
Slide 13: South Basin Resource Estimate August 2025
South Basin Resource Estimate August 2025 For personal use only Contained Tonnage Li B Li2CO3 H3BO3 Li2CO3 H3BO3 Stream Classification Ktonnes ppm ppm Wt. % Wt. % (kt) (kt) Measured 64,385 1,752 12,669 0.93 7.24 600 4,664 1 Indicated 87,372 1,551 11,280 0.83 6.45 721 5,636 Searlesite: High-boron lit
Slide 14: South Basin Ore Reserve Estimate August 2025
South Basin Ore Reserve Estimate August 2025 For personal use only Contained Tonnage Li B Li2CO3 H3BO3 Li2CO3 H3BO3 Stream Classification Ktonnes ppm ppm Wt. % Wt. % (kt) (kt) Proven 39,428 1,824 13,235 0.97 7.57 383 2,984 1 Probable 51,813 1,632 11,640 0.87 6.66 450 3,448 (>= 5,000 ppm B) Total S1