Announcement PDF Timor-Leste Exploration Program Snapshot August 2025 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 purchase any securities in ESR, or as an inducement to make an offer or invitation with respect to those securities. No agreement to subscribe for securities in ESR will be entered into on the basis of this presentation. Forward Looking Statements This presentation contains certain forward looking statements which have not been based solely on historical facts but, rather, on ESR’s current expectations about future events and on a number of assumptions which are subject to significant uncertainties and contingencies many of which are outside the control of ESR and its directors, officers and advisers. Reliance on Third Party Information Due care and attention has been taken in the preparation of this presentation. However, the information contained in this presentation (other than as specifically stated) has not been independently verified nor has it been audited. Accordingly, the company does not warrant or represent that the information contained in this presentation is accurate or complete. To the fullest extent permitted by law, no liability, however arising, will be accepted by ESR or its directors, officers or advisers, for the fairness, accuracy or completeness of the information contained in this presentation. Compliance Statement With reference to previously reported Exploration results and mineral resources included in this presentation, the company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and, in the case of estimates of Mineral Resources or Ore Reserves that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. The company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement. Competent Person Statement The information in this announcement relating to Exploration Results is based on information compiled by Steve Warriner, who is the Group Exploration Manager of Estrella Resources, and a member of The Australasian Institute of Geoscientists. Mr Warriner has sufficient experience relevant to the style of mineralisation and type of deposit under consideration, and to the activity they are undertaking to qualify as Competent Persons as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resource and Ore Reserves”. Mr Warriner consents to the inclusion in the report of the matters based on their information in the form and context in which it appears. Cautionary Statement of Visual Estimates This announcement contains references to visual results and visual estimates of mineralisation. The Company draws attention to uncertainty in reporting visual results. Visual estimates of mineral abundance should never be considered a proxy or substitute for laboratory analyses where concentrations or grades are the factor of principal economic interest. Visual estimates also potentially provide no information regarding impurities or deleterious physical properties relevant to valuations. There are no visual estimates reported that have not been previously announced to ASX. The Board authorised for this presentation to be released to ASX. 2 th As at 14 August 2025 • Currently diamond drilling at Ira Miri • 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 Management Plan for Werumata being finalised • 35 Diamond ad RC holes planned • Converted RP01-04 to Exp & Eval Licenses • Completed mapping RP05, RP07, RP08 • Recommend converting to EELs • Applications due on 25th August • Mapping Baucau licenses recommenced Estrella’s Tenements in Timor-Leste Where Are We Currently Drilling? Sica Prospect Ira Miri Prospect N Lalena Prospect Results So Far at Ira Miri • EMDD002 intersected 7.76m massive manganese oxides in a vertical drillhole • Trenching has revealed primary manganese with secondary enrichment • Additional manganese boulders discovered some 450m NW of the original outcrop Sica Prospect Trenching at Ira Miri showing 95% Manganese Oxides - See ASX Announcement dated 3 June 2025 and Visual Estimates Cautionary Statement in the disclaimer EMDD002 - See ASX Announcement dated 23 June 2025 where visual estimates are presented. Please see Visual Estimates Cautionary Statement in the disclaimer Results So Far at Ira Miri • Scout drilling determining bedrock geology boundary locations • 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 Announcement dated 15 August 2025. The primary and secondary manganese mineralisation contain >80% manganese-iron oxides with minor carbonate and silica. Please see Cautionary Statement for Visual Estimates in the Disclaimer and sampling information in the announcement. Drilling at Ira Miri - See ASX Announcement dated 15 August 2025 Moving to Targeted Drilling of the Primary and Secondary Manganese Horizons Secondary Enrichment Outcropping Potential Secondary Enrichment Buried Potential Limestone Noni Formation Primary Mn Beds Folding in Primary and Stacking – Samalari 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 Statement on Visual Estimates in the Disclaimer. Folding in Primary – Ira Miri Outcrop Trenching Plan view of trenching EMDD003 7m OPEN EMDD002 (7.76m MnO) EMDD001 See ASX Announcement 15 August 2025 OPEN Folding in Primary and Stacking – Ira Miri Ira Miri Prospect Outcrop 2 Sica Prospect Outcrop 1 N Proposed Geophysics Timor-Leste Limestone prospects and proposed port ▪ Successfully converted Reconnaissance Permits to Exploration and Evaluation Licenses (red outlines) ▪ Potential project area lies between Lautém and Baucau, within the Baucau Municipality ▪ Major highway and HV powerline running through the project area Potential Limestone Project Area Sampling demonstrates high-grade potential Assays outline exceptional calcite mineralisation within selected samples ▪ Several samples exported to ALS in Western Australia for Net Neutralization Potential and trace element testing ▪ Multiple high-grade calcite results returned from limestone with an average of 85% Calcite (CaCO3) ▪ Very high neutralization values determined by laboratory testing ▪ Strong grades highlight the potential for simple open pit DSO operation ▪ No treatment of the product is necessary prior to shipping ALS Malaga (Laboratory in West Australia) Assay results from within the potential project area taken in March 2025 See ASX Announcement 14 May 2025 Highly Attractive Port Facility Option Potential for large-scale port adjacent to existing calcite and manganese prospects ▪ 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 located immediately adjacent to existing calcite and manganese deposits for rapid export operation, with additional reserves from other deposits to be trucked and stockpiled ▪ Material to be crushed/screened at a purpose built coastal terminal and then conveyed approximately 100-200m offshore along open-piled jetty ▪ Pier located adjacent to 15m+ deep seabed capable of berthing bulk carriers Panamax (70,000 DWT) and potentially Capesize (180,000 DWT) whilst minimising environmental disturbance Proposed deep-water port location at Werumata Existing port facilities in Dili Open pile jetty with conveyor system N Potential Port Area WERUMATA LIMESTONE 50m 100m Infrastructure ▪ Community engagement has been very positive ▪ The Weru-Mata Community welcomes the project and the opportunities it brings ▪ Community development programs are currently being discussed including crop irrigation, clean and fresh drinking water, education and work opportunities 150m 1 Bt Target Area 200m 250m