Estrella Resources Limited · ASX:ESR
Estrella Resources — Ignite HK Presentation October 2025
19 slides from Estrella Resources's conference presentation, Oct 15, 2025
Slide 1: Exploration Drilling in Timor-Leste
For personal use only EXPLORATION DRILLING IN TIMOR-LESTE IGNITE HK PRESENTATION October 2025
Slide 2: Disclaimer & Declaration
Disclaimer & Declaration This presentation has been prepared by Estrella Resources Limited (“ESR”) as a summary of the company’s exploration and development activities. No Offer of Securities The presentation is not, and should not, be considered as an offer or invitation to subscribe for, or purcha
Slide 3: Estrella Resources Highlights: Drilling an untested, highly-prospective region
Estrella Resources Highlights: Drilling an untested, highly-prospective region For personal use only • Large campaign encounters: 8.05m @ 53% Mn High-grade • Further broad intersections, including: 12.87m of 80% manganese drilling manganese oxides from 5.13m, assays pending Limestone • Targeting lar
Slide 4: Mining in Timor-Leste: First-mover advantage
Mining in Timor-Leste: First-mover advantage Timor-Leste Estrella was Estrella is one of Applications Estrella has since For personal use only In 2023, Timor- government is four entities (and grown its footprint awarded three of followed ~15-yr Leste undertook highly incentivised one of just two to
Slide 5: Timor-Leste: An exceptional opportunity
Timor-Leste: An exceptional opportunity For personal use only ▪ A series of high-quality unexplored targets across a large license holding ▪ Located ~90min flight from Darwin ▪ High-quality infrastructure in place ▪ Only 6 months from discovery (Nov ’24) to drilling (May ’25) 5
Slide 6: Estrella Mineral Concessions: Exploring a highly prospective region
Estrella Mineral Concessions Exploring a highly prospective region For personal use only ▪ Timor-Leste is located in a complex geological setting where three major tectonic plates converge and uplift fertile ground ▪ The region possesses multi-commodity potential but has never been extensively explo
Slide 7: Manganese Exploration
For personal use only Manganese Exploration Secondary manganese in core from EMDD033 Refer to ASX announcement dated: 22 September 2025 7
Slide 8: Maiden Drilling: Ira Miri Manganese Project
Maiden Drilling: Ira Miri Manganese Project ▪ First ever modern minerals drilling in Timor-Leste at the Ira Miri project For personal use only ▪ Highly successful maiden assays: ▪ EMDD001 intersected 6.45m @ 51.7% Mn ▪ EMDD002 intersected 8.05m @ 53.0% Mn ▪ EMDD003 intersected 1.5m @ 35.8% Mn ▪ Broa
Slide 9: Detailed Exploration: Supports drill targeting
▪ Large-scale exploration campaign enables Detailed Exploration: potential definition of an entirely new manganese province Supports drill targeting ▪ Campaign consists of initial 3,000m diamond and 10,000m RC drilling. For personal use only ▪ A secondary round to consist of a further 10,000m RC dri
Slide 10: Additional Targets: Exceptional Outcropping Discoveries
Additional Targets: Exceptional Outcropping Discoveries Lalena Sica Prospect For personal use only • A series of manganese exposures at surface • Layer of concentrated • Bands range between manganese 2 to 10cm in width supergene • Top assay of 1: • Top assays of 2: • 60.76% Mn • 58.18% Mn • 57.02% M
Slide 11: Limestone Opportunity
For personal use only Limestone Opportunity 11
Slide 12: Werumata Project: Clean Lime Potential
Werumata Project: Clean Lime Potential ▪ A large area within the Timor-Leste concessions has been interpreted to host a sheet of limestone mineralisation For personal use only ▪ Mineralisation several hundred metres thick in places (source: Institute of Geology, Timor-Leste and Estrella’s stratigrap
Slide 13: DSO Potential: Drilling to define scale
DSO Potential: Drilling to define scale For personal use only ▪ Estrella’s limestone possesses strong neutralisation potential, making the ore potentially amenable for many industrial and environmental applications ▪ Lime is particularly sought after by Indonesian Industry to reduce environmental ri
Slide 14: Transformative Calcite Agreement
Transformative Calcite Agreement: Paves way for large-scale calcite sales into SE Asia For personal use only ▪ Agreement with Indonesian company PT Raka Energi Mandiri (REM) to assist in marketing and selling calcite from Timor-Leste mining concessions ▪ Estrella and REM plan to enter into an Offtak
Slide 15: Infrastructure & proximity to market
Estrella Mineral Concessions Infrastructure & proximity to market ▪ Access via 170km of sealed roads from the capital of Dili. ▪ Close proximity by sealed roads to deepwater port at Com For personal use only ▪ Vegetation varies between open grasslands and tropical ▪ Timor-Leste on the doorstep of si
Slide 16: Joint-Venture with State-Run Mining Company
Joint-Venture with State-Run Mining Company For personal use only ▪ ESR has finalised a Joint-Venture with state-run Murak Rai Timor (MRT) ▪ The JV named Estrella Murak Rai Timor (70% owned by ESR, 30% owned by MRT) to explore for mineral deposits in granted Exploration & Evaluation Licenses (EEL’s)
Slide 17: Capital Structure
For personal use only Cash ASX Ticker Share Price Market Cap Enterprise Value ESR Capital Structure A$70.4M ~$63.9M ~ A$6.5M (as at 30th June 25) A$0.034 (as at 13st October 25) 0.01 0.02 0.03 0.04 0.05 0.06 0 4/10/2025 4/17/2025 4/24/2025 5/1/2025 5/8/2025 5/15/2025 5/22/2025 5/29/2025 6/5/2025 6/1
Slide 18: Estrella Resources Highlights: Drilling an untested, highly-prospective region
Estrella Resources Highlights: Drilling an untested, highly-prospective region For personal use only • Large campaign encounters: 8.05m @ 53% Mn High-grade • Further broad intersections, including: 12.87m of 80% manganese drilling manganese oxides from 5.13m, assays pending Limestone • Targeting lar
Slide 19: Contact: Chris Daws
For personal use only Contact: Chris Daws Managing Director M: +61 8 9481 0389 E: info@estrellaresources.com.au 19
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