Slide 1: Timor-Leste Exploration Program Snapshot August 2025
Timor-Leste Exploration Program Snapshot August 2025 For personal use only
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's Tenements in Timor-Leste
th As at 14 August 2025 Estrella’s Tenements in Timor-Leste • Currently diamond drilling at Ira Miri For personal use only • Completed 16 diamond holes for 740m • Putting in tracks for next 24 holes at Sica • RC capability being finalised in Dili • Environmental Impact Statement and Environmental Ma
Slide 4: Where Are We Currently Drilling?
Where Are We Currently Drilling? For personal use only Sica Prospect Ira Miri Prospect Lalena Prospect N
Slide 5: Results So Far at Ira Miri
Results So Far at Ira Miri • EMDD002 intersected 7.76m massive manganese oxides in a vertical drillhole For personal use only • Trenching has revealed primary manganese with secondary enrichment • Additional manganese boulders discovered some 450m NW of the original outcrop Sica Prospect Trenching a
Slide 6: Results So Far at Ira Miri
Results So Far at Ira Miri • Scout drilling determining bedrock geology boundary locations For personal use only • Manganese potential restricted to the Jurassic (Noni Fm) • Primary manganese beds identified below secondary overprint Sica Prospect Ira Miri Prospect N Trenching at Ira Miri - See ASX
Slide 7: Moving to Targeted Drilling of the Primary and Secondary Manganese Horizons
Moving to Targeted Drilling of the Primary and Secondary Manganese Horizons For personal use only Secondary Enrichment Secondary Enrichment Limestone Outcropping Buried Potential Potential Noni Formation Primary Mn Beds
Slide 8: Folding in Primary and Stacking – Samalari
Folding in Primary and Stacking – Samalari For personal use only Baucau Exploration and Evaluation Licenses showing both Primary and Secondary Manganese Development – See ASX Announcement 27 September and 16 October 2024. Please see the relevant announcements for Visual Estimates and the Cautionary
Slide 9: Folding in Primary – Ira Miri Outcrop
Folding in Primary – Ira Miri Outcrop Trenching Plan view of trenching For personal use only EMDD003 7m EMDD002 OPEN (7.76m MnO) EMDD001 OPEN See ASX Announcement 15 August 2025
Slide 10: Folding in Primary and Stacking – Ira Miri
Folding in Primary and Stacking – Ira Miri Ira Miri Prospect For personal use only Outcrop 2 Sica Prospect Outcrop 1 N
Slide 11: Proposed Geophysics
For personal use only Proposed Geophysics
Slide 12: MobileMT configuration and advantages
MobileMTd configuration and advantages _= Low survey speed (0-5 m/s) 5 Low motion noise - Measuring very low frequencies (greatest depth of investigations) v. High spatial resolution due to sensor flying low and slow S Collecting data during high natural field intensity periods rf Significant enviro
Slide 13: Timor-Leste Limestone prospects and proposed port
Timor-Leste Limestone prospects and proposed port ▪ Successfully converted Reconnaissance Permits to Exploration and Evaluation For personal use only Licenses (red outlines) ▪ Potential project area lies between Lautém and Baucau, within the Baucau Potential Municipality Limestone Project Area ▪ Maj
Slide 14: Sampling demonstrates high-grade potential
Sampling demonstrates high-grade potential Assays outline exceptional calcite mineralisation within selected samples For personal use only ▪ Several samples exported to ALS in Western Australia for Net Neutralization Potential and trace element testing ▪ Multiple high-grade calcite results returned
Slide 15: Highly Attractive Port Facility Option
Highly Attractive Port Facility Option Potential for large-scale port adjacent to existing calcite and manganese prospects For personal use only ▪ Estrella’s commercial study has identified the potential for a port between the cities of Baucau and Lautém on Timor-Leste’s north coast ▪ Facility locat
Slide 16: Werumata Limestone port area and community engagement
Potential N Port Area WERUMATA LIMESTONE For personal use only 50m ▪ Community engagement 100m has been very positive ▪ The Weru-Mata Community Infrastructure 150m welcomes the project and the opportunities it brings ▪ Community development 1 Bt Target Area 200m programs are currently being discusse