Slide 1: Investor Update: The Right Time for Niobium/REE and Copper in Australia
For personal use only Investor Update The Right Time for Niobium/REE and Copper in Australia… March 2026 – WA Critical/Strategic Minerals Delegation to Canada/USA
Slide 2: Disclaimer and Compliance Statement
Disclaimer and Compliance Statement Encounter Resources Investor Update Disclaimer and not for US Distribution. For personal use only This presentation has been prepared by Encounter Resources Limited (“Encounter”). The information The information in this report that relates to Exploration Results i
Slide 3: Recent Highlights
Recent Highlights Growing resources, advancing studies, aggressive exploration Initial Resource: 19.2Mt @ 1.74% Nb₂O₅ — shallow, high- For personal use only grade and open along strike and at depth Resource Growth: Infill and extensional drilling Well-funded (~$35 million) to: o Advance explor
Slide 4: Encounter at a Glance
Encounter at a Glance Value Creation Through Project Generation and Discovery Encounter Resources Investor Update Board Leadership Team For personal use only Will Robinson | Executive Chairman Mark Brodie | Exploration Manager Vince Crombez | Senior Geologist Jon Hronsky OAM | Non-Executive Director
Slide 5: Multi-Commodity Leverage in Australia's Next World-Class Mineral Province
Multi-Commodity Leverage in Australia’s Next World-Class Mineral Province Encounter Resources Investor Update Exposure to High-Value Critical Minerals For personal use only Niobium, REE and Copper-Gold Resource Growth Through Active Drilling Multi-rig programs – priority targets from geophysics inve
Slide 6: West Arunta: Australia's Next Great Mineral Province
West Arunta Niobium / REE Australia’s Next Great Mineral Province Exceptionally well mineralised suite of intrusions For personal use only High-grade niobium deposits were found fast Globally significant niobium resources Super low discovery cost: o ~A$40/t discovery cost per tonne of Nb (US$4
Slide 7: Niobium: Fast Growing, High Value, Stable Pricing
Niobium: Fast Growing, High Value, Stable Pricing Niobium / REE Critical input into steel, defence, aerospace and energy transition applications with blue-chip consumer base Ferroniobium 6.1% CAGR* 20 Nb Oxide (kt) 15% growth For personal use only Finished Steel Products Ferroniobium 18 16 Fast Grow
Slide 8: Niobium - Key Producers and Deposits
Niobium - Key Producers and Deposits Niobium / REE Niobium producers are high margin, with stable pricing driving strong valuations For personal use only 80% 2.50% Deposit Grade 1 Market Share (Nb O %) 2 5 11% 8% 1.00% 0.40% Araxá Catalão II Niobec Company Location 1 CBMM - Shikik. A: ‘A review on e
Slide 9: Aileron Project – West Arunta
Aileron Project – West Arunta Carbonatites are commonly strike-extensive dyke systems including the world’s largest - Bayan Obo (China) For personal use only The Bayan Obo REE-Nb-Fe Deposit (East, Main and West pits) have strong fault controls. The system extends ~15km east-west and is the world’s l
Slide 10: Green – High-grade and growing
Green – High-grade and growing Niobium / REE For personal use only Green Prospect – Niobium - AEM Layered Earth Inversion (LEI) DS55 10 Refer to ASX announcement 6 October 2025 and WA1 ASX announcement 9 October 2025
Slide 11: Initial Resource Provides Platform for Development
Initial Resource Provides Platform for Development Niobium / REE Multiple growth drivers from Encounter’s commanding tenure position For personal use only 19.2Mt @ 1.74% Nb₂O₅ (≥1.0% cut-off) – world-class undeveloped niobium resource Platform for Mineralogy indicates potential for high-grade co
Slide 12: New High-Grade Niobium–REE Zone 500m East of Crean
New High-Grade Niobium–REE Zone 500m East of Crean Niobium / REE Elephant Island Fault is a +8km mineralised corridor with large areas still only broadly drilled For personal use only Elephant Island Fault – RTP Magnetics with Crean MRE outline and max-in-hole Nb2O5 12 Refer to ASX announcement 17 N
Slide 13: Aileron Project – Exploration Upside
Aileron Project – Exploration Upside Driven by a commanding land position, high-quality geophysics and fast, cost-effective drilling Niobium / REE For personal use only Aileron AEM - Layered Earth Inversion (Depth Slice 55 metres below surface) – showing new EM targets on the regional faults 13
Slide 14: Australia's Most Prospective New Rare Earths Region
Australia’s Most Prospective New Rare Earths Region Niobium / REE REE deposits commonly occur alongside Niobium deposits Mt Weld – Lynas Araxa – CBMM (Nb) For personal use only St Honore – Magris St George (REE) Rare Earths Legend Carbonatite complex 2km 2km 2km Niobium deposit REE deposit Niobium d
Slide 15: Australia's Most Prospective New Rare Earths Region
Australia’s Most Prospective New Rare Earths Region Niobium / REE Northern carbonatite demonstrates elevated Dysprosium/Terbium relative to most Australian deposits For personal use only Aileron project – Magnetics (TMI) 15 Refer to ASX announcement 19 August 2025
Slide 16: Towards development – West Arunta
Towards development – West Arunta Niobium / REE Growing resources and advancing studies Initial Resource (MRE): 19.2Mt @ 1.74% Nb₂O₅ - shallow, high-grade and open along strike and at depth For personal use only MRE update targeted for H1 2026 Infill drilling of high-grade mineralisation start
Slide 17: Copper Projects
For personal use only Copper Projects Paterson Province WA - High-impact copper-gold drilling South32 to drill multiple targets at Jessica Copper (NT) in 2026
Slide 18: Copper-Gold in One of WA's Most Proven Districts
Copper-Gold in One of WA’s Most Proven Districts Copper / Gold Paterson Province WA - 100% Encounter Yeneena Copper Project For personal use only Tyrell - near-surface, high-grade copper oxide MRE Parbo - +8km copper mineral system - RC and diamond drilling in Q2 2026 to follow up high-grade cop
Slide 19: Yeneena Copper - Tyrell
Yeneena Copper - Tyrell Copper / Gold Initial Tyrell Copper Oxide Inferred MRE (surface to 50m): 2.9Mt @ 0.8% Cu incl: 1.1Mt @ 1.3% Cu (high-grade zone) For personal use only Shallow, high-grade mineralisation with growth potential Drillhole location plan of the Tyrell high-grade copper oxide zo
Slide 20: Yeneena Copper - Parbo
Yeneena Copper - Parbo Copper / Gold +8km Parbo copper mineral system: 15m @ 1.0% Cu & 0.6% Co (EPT1557) For personal use only 7m @ 1.4% Cu (EPT2292) 73m @ 0.4% Cu incl. 8m @ 1.0% Cu (EPT1159) 5.3m @ 2.5% Cu incl. 0.7m @ 10.7% Cu (EPT1719) Follow-up drilling of the high-grade zones within th
Slide 21: Yeneena Copper – Haddon
Yeneena Copper – Haddon AEM anomaly with strong silver, copper, lead, and zinc anomalism in RC drilling Copper / Gold For personal use only RC drilling identified a laterally extensive copper anomaly (+1000 Cu ppm) over an area of approximately 700m x 700m, centred on a major regional fault Core
Slide 22: Lamil: Multi-Target Copper-Gold System Near Telfer
Lamil: Multi-Target Copper-Gold System Near Telfer Copper / Gold 25km northwest of Telfer copper-gold mine For personal use only +5km mineralised corridor with multiple drill-defined targets Mineralised copper-gold intersections incl: 10m @ 2.8g/t Au from 94m (Dune) 132m @ 0.3g/t Au, 0.1%
Slide 23: Lamil: Elsa Prospect - Havieron Style Breccia
Lamil: Elsa Prospect - Havieron Style Breccia Copper / Gold Drilling intersected strongly altered brecciated sediments with anomalous zones of gold and copper For personal use only EIS co-funded RC drilling commencing Q2 2026 Testing targets within the breccia for potential Havieron style mine
Slide 24: Large Scale Drilling at Jessica Copper Project (NT)
Large Scale Drilling at Jessica Copper Project (NT) South32 - $15m farm-in agreement Copper / Gold Extensive seismic reprocessing, targeted For personal use only stratigraphic drilling, AEM and MIMDAS geophysical surveys completed 4,000m of reverse circulation (RC) drilling and ~2,000m of diamon
Slide 25: Accelerating Copper Exploration
Accelerating Copper Exploration Copper / Gold Leverage to large scale copper-gold drilling in 2026 in WA and NT Paterson Province - WA For personal use only Tyrell - RC drilling targeting extensions to high-grade copper MRE Parbo – Diamond/RC drilling following up prior high-grade primary copper
Slide 26: Why Encounter Resources
Why Encounter Resources Encounter Resources Investor Update For personal use only Dominant land holding in High-grade niobium-REE Strong Balance Sheet the West Arunta - resource with scale and to fund exploration and Australia’s next great growth pathway development studies minerals province Acceler