Slide 1: Investor Update: Inferred Niobium Mineral Resource
Investor Update Inferred Niobium Mineral Resource MAY 2025
Slide 2: Disclaimer and compliance statement
Disclaimer and compliance statement This presentation has been prepared by Encounter Resources Limited (“Encounter”). The information contained in this presentation is a professional opinion only and is given in good faith. Certain information in this document has been derived from third parties and
Slide 3: Encounter at a glance
Encounter at a glance Value Creation Through Project Generation and Discovery Board Cash (Mar 25) Enterprise value ~$21M ~$86M Mr Will Robinson Dr Jon Hronsky OAM Peter Bewick Mr Philip Crutchfield Executive Chairman Non-Executive Director Non-Executive Director Non-Executive Director Capital struct
Slide 4: West Arunta – A New Mineral Province
West Arunta – A New Mineral Province The first two drill holes, ~20km apart and both well mineralised, were a sign of what was to come… 4
Slide 5: Inferred Niobium Mineral Resource Estimate (MRE)
Inferred Niobium Mineral Resource Estimate (MRE) This is only the beginning…the West Arunta has an unusually mineralised suite of intrusions ▪ 19.2Mt @ 1.74% Nb₂O₅ (≥1.0% cut-off) – world-class undeveloped niobium resource ▪ Shallow, high-grade mineralisation open along strike and at depth (<150m) ▪
Slide 6: Niobium
Niobium Critical mineral leveraged to global growth and the energy transition Key Niobium Producers and Deposits1 • High value ‘commodity’ with stable pricing • Three operating mines with one dominant producer supplying over 75% of global niobium requirements (CBMM) • Processing via conventional flo
Slide 7: Aileron Project – West Arunta
Aileron Project – West Arunta Carbonatites are commonly strike-extensive dyke systems including the world’s largest - Bayan Obo (China) 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 largest source of REE.
Slide 8: Aileron Project – West Arunta
Aileron Project – West Arunta Drilling in 2024 intersected shallow, high-grade niobium-REE mineralisation across multiple targets High grade niobium intercepts follow structural corridors defined in geophysics (Magnetics TMI 1vd) Refer to ASX announcements 8 July, 16 July, 16 September, 14 October,
Slide 9: Aileron Project – West Arunta
Aileron Project – West Arunta Establishing one of the world’s most significant undeveloped niobium resources High grade niobium intercepts follow structural corridors defined in geophysics (Magnetics TMI 1vd) Refer to ASX announcements 8 July, 16 July, 16 September, 14 October, 12 December 2024 & 22
Slide 10: Green Niobium Deposit
Green Niobium Deposit RC drilling has commenced to extend and improve the definition of high-grade mineralisation 12.1Mt @ 1.63% Nb2O5 (1% cut-off) 48.0Mt @ 0.81% Nb2O5 (0.25% cut-off) Refer to ASX announcement 14 May 2025 10
Slide 11: Green Niobium Deposit
Green Niobium Deposit RC drilling has commenced to extend and improve the definition of high-grade mineralisation Refer to ASX announcement 21 November 2024, 22 January 2025 11
Slide 12: Emily Niobium Deposit
Emily Niobium Deposit Infill to follow up broad-spaced, shallow drilling with many prior holes ending in mineralisation 3.7Mt @ 1.94% Nb2O5 (1% cut-off) 13.9Mt @ 0.93% Nb2O5 (0.25% cut-off) Refer to ASX announcement 14 May 2025 12
Slide 13: Crean Niobium Deposit
Crean Niobium Deposit High-grade, strike extensive mineralisation which remains open at depth and to the east 3.5Mt @ 1.92% Nb2O5 (1% cut-off) 5.7Mt @ 1.38% Nb2O5 (0.25% cut-off) Refer to ASX announcement 14 May 2025 13
Slide 14: Aileron Project – Exploration Upside
Aileron Project – Exploration Upside Driven by a commanding land position, high quality geophysics and fast, cost-effective drilling Falcon gravity survey has highlighted key structures and high priority targets Refer to ASX announcement 14 June 2023 14
Slide 15: Aileron Project – Exploration Upside
Aileron Project – Exploration Upside Driven by a commanding land position, high quality geophysics and fast, cost-effective drilling Aileron project – Magnetics (RTP) Refer to ASX announcement 8 December 2022 15
Slide 16: Aileron Project – Exploration Upside
Aileron Project – Exploration Upside Upcoming airborne electromagnetics (AEM) survey to support targeting Aileron project – Magnetics (RTP) with the outline of the planned AEM survey Refer to ASX announcement 8 December 2022 16
Slide 17: Aileron Project – Exploration Upside
Aileron Project – Exploration Upside 2025 - Unlocking the region’s potential through focused and systematic exploration Aileron project – Magnetics (RTP) Refer to ASX announcement 8 December 2022 17
Slide 18: Unlocking potential through focused exploration
Unlocking potential through focused exploration Exceptional upside of the Aileron project in the West Arunta ▪ +40,000m RC & aircore drilling Maiden MRE ▪ Airborne electromagnetics (AEM) 19.2Mt @ 1.74% Nb2O5 ▪ Ground gravity and passive seismic ▪ EIS co-funded diamond drilling Discovery Intersection
Slide 19: Contact
Contact: Telephone: +61 8 9486 9455 Website: www.enrl.com.au Email: contact@enrl.com.au Suite 2, 1 Alvan Street Subiaco WA 6008 ASX: ENR RC drilling at Green - May 2025 19