Announcement PDF ElizabethHillSilverProject Advancing Australia’s Highest-Grade ASX-Listed Silver Project1 ASX: WCE | OCTOBER 2026 Cover Image is for illustrative purposes only. Silver bars/bullion shown are generic and are not sourced from, or representative of, product from the Elizabeth Hill Silver Project. 1 Source: S&P Capital IQ. Elizabeth Hill is the highest-grade silver project in Australia held by an ASX-listed company. 2 Forward-Looking Statements Statements in this presentation which are not statements of historical fact, including but not limited to those relating to exploration results, mineral resource estimates, development timelines, production potential and future plans, are forward-looking statements. These statements represent management's current expectations, estimates and projections regarding future events. Although management believes the expectations reflected in such forward-looking statements are reasonable, forward-looking statements are based on the opinions, assumptions and estimates of management at the date the statements are made and are subject to a variety of risks, uncertainties and other factors that could cause actual events or results to differ materially from those projected in the forward-looking statements. Accordingly, investors are cautioned not to place undue reliance on such statements. Competent Person Statement The information in this report that relates to Exploration Results is based on information reviewed by Mr Ian Stockton, who is a Member of the Australian Institute of Geoscientists. Mr Ian Stockton is a consultant to West Coast Silver and a full-time employee of ERM Australia Consultants Pty Ltd. Mr Stockton has sufficient experience that is relevant to the style of mineralisation and type of deposits under consideration, and to the activity being undertaken, to qualify as a Competent Person as defined in the 2012 Edition of the Joint Ore Reserves Committee (JORC) 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves', and a Specialist under the VALMIN Code 2015 Edition of the 'Australasian Code for Public Reporting of Technical Assessments and Valuations of Mineral Assets'. Mr Stockton consents to the inclusion in this report of the matters based on his information and in the form and context in which it appears. The information in this report that relates to the Mineral Resource Estimate is based on information compiled by Mr Phil Jankowski FAusIMM of ERM, who is a Competent Person and Member of the Australasian Institute of Mining and Metallurgy. Mr Jankowski has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the JORC Code. Mr Jankowski consents to the inclusion in this report of the matters based on his information and in the form and context in which it appears. The Mineral Resource Estimate was reported in the ASX announcement dated 22 April 2026. Mr Jankowski is a full-time employee of ERM Australia Consultants Pty Ltd. This presentation contains information relating to Exploration Results and a Mineral Resource Estimate previously released to ASX. Refer to the Company's relevant ASX announcements, including those dated 4 December 2025, 22 April 2026, 9 June 2026, 18 June 2026, 30 June 2026, 9 July 2026, 24 July 2026, 13 August 2026, 27 August 2026, 22 September 2026, 29 September 2026 and 6 October 2026. The Company confirms that it is not aware of any new information or data that materially affects the information included in those original market announcements and, in the case of the Mineral Resource Estimate, that all material assumptions and technical parameters underpinning the estimate in the announcement dated 22 April 2026 continue to apply and have not materially changed. This presentation should be read in conjunction with the Company's announcements lodged with ASX. Cautionary Statement Approximately 86% of the contained silver in the Elizabeth Hill Mineral Resource Estimate is classified as an Inferred Mineral Resource. Inferred Mineral Resources have a lower level of geological confidence than Indicated or Measured Mineral Resources and are based on limited geological evidence and sampling. There is no certainty that further exploration work will result in the conversion of Inferred Mineral Resources to a higher confidence category, or that any of the exploration results, targets, studies or development pathways referred to in this presentation will be realised. The Company has not completed a Scoping Study, Pre-Feasibility Study or Feasibility Study in respect of the Elizabeth Hill Project, and no Ore Reserve has been estimated. Any references in this presentation to development, production, capital cost, margin, payback or restart potential are conceptual only. Historical production figures for the Elizabeth Hill mine relate to mining conducted in 1999–2000 and are provided for context only. They are not indicative of future production or performance from the Elizabeth Hill Project. Historical processing focussed only on the extraction of native silver via gravity separation. Metallurgical testwork is in progress and no testwork results have been reported. Mineral Resource and historical production figures are reported on a 100% project basis; West Coast Silver Limited holds a 70% interest in the Elizabeth Hill Project. This presentation has been prepared by West Coast Silver Limited for information purposes only. It is not a prospectus, product disclosure statement or other disclosure document, and does not constitute an offer, invitation, solicitation or recommendation to subscribe for or acquire securities in West Coast Silver Limited. The information in this presentation is provided in summary form and does not purport to be complete. To the maximum extent permitted by law, West Coast Silver Limited and its directors, officers, employees, advisers and consultants make no representation or warranty, express or implied, as to the accuracy, reliability or completeness of the information contained in this presentation and accept no responsibility for any errors or omissions. This presentation contains forward-looking statements, estimates, targets and projections that are subject to risks, uncertainties and assumptions, many of which are outside the control of West Coast Silver Limited. Actual results may differ materially from those expressed or implied. Investors should not place undue reliance on forward-looking statements and should undertake their own independent assessment and obtain professional advice before making any investment decision. Visual estimates of mineralisation should not be considered a substitute for laboratory assay results and do not provide information regarding grade, impurities or other characteristics relevant to economic evaluation. Elizabeth Hill Silver Project Disclaimer Historical Mine on Granted Mining Lease Figure 1: Elizabeth Hill Exploration Tenement Package and Mine Location Strategic Pilbara Location Granted Mining Lease (M47/342) Production History Processing Opportunity • Elizabeth Hill Project – (M47/342) WCE 70%, Alien Metals Ltd 30%1. • Elizabeth Hill West P47/2033: WCE 70%, GreenTech 30%. • Granted Mining Lease (M47/342) held over the historical mine site and extensions to mineralisation. • Historical production of 1.2Moz Agfrom 16,830tore at head grade of 2,194g/t Ag (70.5oz/t) in 1999–20002. • Evaluate toll treatment options • Potential 3rd party processing options including nearby Radio Hill plant (Artemis)3. • Owner processing depending on scale and economics. Strategic Asset Elizabeth Hill Silver Mine 1999 - 2000 3 3 Processing Plant 10 km 30 km 1 Refer WCE (formerly ERW) ASX Announcement “Acquisition of Elizabeth Hill Silver Project & $3M Placement” dated 24 March 2025. 2 WAMEX Annual Report, 1 April 2014 to 31 March 2015, Elizabeth Hill Silver Project, Global Strategic Metals NL, p16. Figures are reported on a 100% project basis. Historical production is provided for context only and is not indicative of future production or performance. 3 Refer WCE ASX Announcement “Artemis & West Coast Silver Sign Joint MoU on Radio Hill” dated 4 December 2025 Highest in peer group West Coast Silver Elizabeth Hill 4 West Coast: A Pure Silver Play Source: Peer Mineral Resource Estimates as at the announcement dates listed in Appendix 1, the earliest of which is April 2015. Grade bands use total reported silver grade only and do not use Ag-equivalent grades. Peer data as at October 2026. Pure Silver Play Elizabeth Hill has the highest reported silver grade within the selected project peer group. Ultra-High Grade >500 g/t Ag High Grade 100-499 g/t Ag Moderate Grade 50-99 g/t Ag Lower Grade <50 g/t Ag 617 g/t Ag HIGHEST REPORTED SILVER GRADE IN SELECTED PEER GROUP Andean Silver Cerro Bayo 85 g/t Ag Unico Silver Joaquin/Cerro Leon 76 g/t Ag Maritana Nimbus 52 g/t Ag Investigator Paris/Peterlumbo 73 g/t Ag Silver Mines Bowdens 33 g/t Ag Boab Metals Sorby Hills 34 g/t Ag Manuka Res. Wonawinta 41 g/t Ag Patriot Res. Tassa 43 g/t Ag Iltani Res. Orient 23 g/t Ag Endurance Abra 19 g/t Ag Lode Resources Montezuma 173 g/t Ag Maronan Metals Maronan 108 g/t Ag Rapid Critical Webbs & Conrad 107 g/t Ag Mithril Silver Copalquin 77 g/t Ag Peer Drilling Benchmark 2026 Silver Drilling : WCE Ranks #2 and #3 in Selected ASX Peers All distinct silver intercepts from ASX-listed issuers appearing in the supplied 2026 MinerDeck charts. RANK COMPANY ASX PROJECT Ag (g/t) WIDTH (m) FROM (m) Ag g/t·m RELATIVE GRADE × WIDTH 1 Polymetals Resources POL Endeavor 390 96.6 7 37,674 2 West Coast Silver WCE Elizabeth Hill 1,314 27.4 49 36,004 3 West Coast Silver WCE Elizabeth Hill 878 38.3 4 33,6271 4 Sunshine Metals SHN Ravenswood 396 30 17 11,880 5 Polymetals Resources POL Endeavor 197 45 17 8,904 6 Belararox BRX TMT 172 47 59 8,084 7 Black Bear Minerals BKB Shafter 542 15 46.4 7,913 8 Andean Silver ASL Cerro Bayo 2,541 3.1 226 7,877 9 Rapid Critical Metals RCM Webbs 203 37 127 7,577 10 Unico Silver USL Joaquin 70 107 18 7,490 11 Advance Metals AVM Gavilanes 220 34 118 7,458 12 Solstice Minerals SLS Nanadie 1,019 7 61 7,133 13 Advance Metals AVM Yoquivo 49 144 200 7,056 Source: Selected 2026 MinerDeck silver drilling comparisons published on X, compiled 19 October 2026. Rankings are based on reported silver grade multiplied by downhole intercept length (Ag g/t × m), rather than contained metal or economic value. The comparison is limited to intercepts included in the reviewed MinerDeck charts and is not an exhaustive assessment of all ASX silver drilling results. Refer WCE ASX announcements dated 4 February 2026 (25WCDD014) and 27 August 2026 (26WCDD037), including the subsequent correction. 1 The 38.3m @ 878 g/t Ag intercept in 26WCDD037 includes 0.5m @ 64,745 g/t Ag from 29.0m, contributing approximately 96% of its calculated grade × width. 5 6 Development & Resource Growth Strategy Funding enables resource confidence, near-mine drilling and district-scale exploration DEVELOPMENT April 2026 JORC MRE: 2.8Moz Ag @ 617 g/t Ag (~86% Inferred Resources, 100% basis). H2 infill drilling tests potential conversion to Indicated. Metallurgy and geotechnical studies to underpin Q1 2027 Scoping Study. GROWTH West: broad granite-hosted mineralisation beyond April MRE. Deeps: interpreted high-grade trend open east and south. EHW: granted P47/2033 adjacent to mine. N & S: ~4km IP / CSAMT geophysics testing Munni Munni Fault Zone for silver-system repeats. 7 New Silver Discovery & Near-Surface Extensions 1 Reer WCE ASX announcement 27 August 2026, Tables 1–4 and Figures 1–4. Rounding may lead to minor apparent discrepancies. 2 Refer WCE ASX Announcement 9 July 2026 Mineralisation Outside MRE Mineralisation Extends into Granite Near-Surface Ag1 New Deeps Discovery2 (not too deep) • New west-to-east drilling confirms mineralisation outside April 2026 MRE • System remains open; results expected to inform Q4 2026 MRE • Western mineralisation extends near- surface into granite. Broader lower grade zone, potential higher volumes. • 26WCDD037: 38.3m @ 878g/t Ag from 3.7m downhole. • 26WCDD038: 63m @ 53g/t Ag from 2m downhole. • 26WCDD029: 3 m @ 524 g/t Ag from 183 m downhole. • Including 1.5 m @ 1,039 g/t Ag from 184.5 m downhole. Released August 2026 Latest 70m 50m Drill Results 8 8 1 Refer WCE ASX Announcement “Bonanza-Grade Silver Confirmed and Near-Surface Mineralisation Extended West at Elizabeth Hill” dated 27 August 2026. Intervals are downhole lengths, not true widths. Bonanza Silver + Resource Extension1 • New west-to-east drilling intersected high-grade silver within the current MRE and extended mineralisation beyond the MRE to near- surface and westward into granite. • Exceptional diamond drilling results: o 38.3m @ 878 g/t Ag from 3.7m downhole (26WCDD037), including ▪ 22.3m @ 1,495 g/t Ag from 19.7m including - – 1.4m @ 23,360 g/t Ag from 29.0m including – 0.5m @ 64,745 g/t Ag from 29.0m. ▪ 13.5m @ 2,253 g/t Ag from 45.0m including – 9.15m @ 3,318 g/t Ag from 47.85m. o 63.0m @ 53 g/t Ag from 2.0m downhole (26WCDD038), including ▪ 31.3m @ 92 g/t Ag from 26.7m including - ▪ 0.43m @ 845 g/t Ag from 46.77m; ▪ 1.0m @ 1,060 g/t Ag from 51.0m. EXCEPTIONAL WIDTH FROM NEAR SURFACE OUTSIDE RESOURCE ESTIMATE – ABOVE & BELOW NEW TONNES MORE METAL HIGH GRADES Core Photos 9 9 1 Refer WCE ASX Announcement “Bonanza-Grade Silver Confirmed and Near-Surface Mineralisation Extended West at Elizabeth Hill ” dated 27 August 2026. Oxidised Native Silver – 26WCDD037: 22.20m–32.95m downhole, including 0.5m @ 64,745g/t Ag from 29.00m downhole Visible Native Silver – 26WCDD037: 44.55m– 58.82m downhole, including multiple high- grade silver intervals Visible Native Silver – 26WCDD0371 Native Silver in Quartz-Carbonate Veining – 26WCDD037: 51.95m–52.30m downhole – 0.35m @ 31,154g/t Ag That’s 3.1% Ag Hotter the Colours the Higher the Silver Grade 10 New Deeps High-Grade Silver Zone Source: ASX: WCE announcement 9 July 2026. Downhole intervals; true widths are not yet known. The approximately 50 m trend is an interpretation based on current and historical drilling. Elizabeth Hill Deeps diamond drilling longitudinal section view Silver Trend Beneath Historical Workings Growth • Three intersections currently define a new mineralised trend - • 26WCDD029: 3m @ 524g/t Ag from 183m downhole, including 1.5m @ 1,039g/t Ag from 184.5m downhole. • UGD084: 7m @ 607g/t Ag from 57m downhole, including 2m @ 1,995g/t Ag from 61m downhole. • AG33: 4m @ 223g/t Ag from 190m downhole. • Approximately 50 m-long interpreted mineralised trend, beneath and to the south of the historical mine. • Located outside and beneath the April 2026 MRE. Follow-up drill planning is underway. Key Highlights Next Phase 11 11 Three Growth Fronts Beyond the April 2026 MRE1 1. Mineralisation extended beyond the MRE to the west, north, south and near-surface. 2. High-grade mineralisation confirmed within and below the current MRE. 3. West-to-east drilling has opened previously less-tested areas around Elizabeth Hill. 4. Results will inform the planned Q4 2026 MRE update, with further H2 drilling targeting resource confidence and extensions to inform March 2027 MRE update. North Growth Mineralisation extended ~70 m north 'OPEN' @ depth West Growth Broad near-surface mineralisation outside MRE Drilling extended by ~50m 'OPEN' laterally & depth Depth Growth New ~50m long high- grade Deeps zone below historical mine <150m of surface 'OPEN' laterally & depth April 2026 MRE 2.8Moz Ag @ 617g/t Ag Note: Exploration results outside the current MRE have not yet been incorporated into a Mineral Resource. Downhole intervals; true widths are not yet known. 1 Refer WCE ASX Announcement “Bonanza Silver Grades at Elizabeth Hill” dated 27 August 2026. 2 Refer WCE ASX Announcement “Elizabeth Hill New High Grade Silver Discovery” dated 9 July 2026. Rounding may lead to minor apparent discrepancies. Elizabeth Hill Deeps • 3m @ 524g/t Ag from 183m downhole, including 1.5m @ 1,039g/t Ag from 184.5m downhole2 • ~50 m interpreted trend 2026 Drilling Outcomes New Tenement Elizabeth Hill West - Granted P47/2033 is immediately adjacent to the Elizabeth Hill mine lease (M47/342) What has changed • Granted P47/2033: 70% WCE / 30% GreenTech. • Targets within 1 km of the historical mine. • Historical Trenching: 5m @ 5.2g/t Ag; 19,000ppm Cu; 220ppb Pd (Trench C52). • Historical RC: 1m @ 11g/t Ag from 65m downhole (EHRC11). • Work program: data review, field validation, geophysics and potential scout drilling in 2027. Source: WCE ASX 22 September 2026 and Quarterly 15 October 2026, p. 9. Historical intersections are not Mineral Resources. 12 Exploration Geophysical Surveys to Define New Silver Drill Targets IP and CSAMT geophysical surveying underway along approximately 4km of the Munni Munni Fault Zone Key program features • Approximately 4 km of Munni Munni fault corridor is being surveyed. • Mine-site IP test response coincides with the MRE mineralised envelope. • Survey commenced at Elizabeth Hill South; historical 2m @ 1,550 g/t Ag from 108m. • A$114,312 EIS grant co-funds 50% of program. • Modelling to prioritise potential H1 2027 drill targets. Source: WCE ASX 6 October 2026 and Quarterly 15 October 2026. Geophysical anomalies are targets, not discoveries. Drill Campaign H2 2026 Diamond Drilling Up to 18 holes / approximately 1,800m to support resource and study milestones Allocated drilling 6 holes / 510m MRE infill / confidence 8 holes / 640m Western extension 2 holes / 360m Elizabeth Hill Deeps 2 holes / 290m Below historic mining Level 102 West Core Drilling commenced diamond drilling on 18 October 2026, with completion targeted for mid-December 2026. Assay results are expected by mid-February 2027. Source: WCE ASX 29 September 2026 (program), superseded on mobilisation date by Quarterly 15 October 2026, p. 10. 18 holes / 1,800m Additional drilling if holes successful TOTAL Program 2026 / 2027 Program Timeline Two resource updates, one funded drill campaign, and a development Scoping Study OCT 26 NOV DEC JAN 27 FEB MAR APR H2 diamond drilling IP / CSAMT & modelling Resource update H2 results / interpretation Scoping Study Resource update Mar 2027 target Indicative milestones are subject to drilling progress, assay turnaround, resource estimation, technical studies and relevant approvals. November MRE WORKSTREAMS PROGRAM WINDOW 2026 2027 Catalysts Funded Workstreams & Near-Term Catalysts From high-grade drill results to resource updates and Scoping Study evaluation 1 Resource Definition • November 2026 MRE to incorporate H1 RC / diamond drilling • March 2027 MRE targeted to incorporate H2 diamond drilling results 2 H2 Diamond Program • Up to 18 diamond holes / ~1,800m • Four targets: Infill, Western Extension, Deeps, below mined historical 102 Level 3 Regional Target Pipeline • ~4 km IP / CSAMT surveying, 50% EIS-funded • Interpretation to prioritise H1 2027 drilling targets 4 Development Readiness • Geotechnical testwork • Metallurgical testwork • Q1 2027 Scoping Study release Delivery milestones are targets, not completed studies or Ore Reserves. Source: WCE ASX 29 September, 6 October and 15 October 2026; no Scoping Study or Ore Reserve reported as at 18 October. 17 Advancing Elizabeth Hill Silver Project Advancing Elizabeth Hill through resource growth, studies and development assessment Highlights 1 Refer WCE ASX Announcement “Elizabeth Hill - 2.8 Moz Silver Mineral Resource Estimate” dated 22 April 2026 2 Refer WCE ASX Announcement “Elizabeth Hill New High Grade Silver Discovery” dated 9 July 2026. Rounding may lead to minor apparent discrepancies. 3 Refer WCE ASX Announcement “Artemis & West Coast Silver Sign Joint MoU on Radio Hill” dated 4 December 2025 • July 2026 discovery below Elizabeth Hill mine2. • 50m high-grade trend confirmed by three drill holes. • 26WCDD029: 3m @ 524g/t Ag from 183m downhole, including 1.5m @ 1,039g/t Ag from 184.5m downhole. • Open to extension east and south; H2 drilling testing continuity. • JORC 20121 — 2.8 Moz at 617g/t Ag - highest-grade silver resource in the ASX peer set reviewed. • Benchmark for growth. • Confirms high grade and growth from 2025 drilling. • Opportunities to grow – o Tonnes o Metal o All Grades • Metallurgical + geotechnical drilling and testwork. • Mining options study. • Processing scenarios3 – o Toll o Stand-alone o Refurbish (Share) • ESG pathway • Scoping Study outcomes targeted Q1 2027. • H2 EH Deeps drilling – chasing new high-grade tonnes. • H2 MRE infill drilling targeting improved resource confidence and potential conversion of Inferred Resources to Indicated Resources, subject to drilling results and geological assessment. • H2 follow-up drilling – how far does the western mineralised system extend? West and Deeps. • Updated MRE in Q4 – quantify success. Pure Silver Play Initial MRE: 2.8 Moz New High-Grade Discovery Near Term MRE Growth Development Pathway 18 Drill Core Intercept: Diamond core tray from hole 26WCDD029 displaying high-grade silver intervals (including 1.1m at 1,395g/t Ag) and visible thin silver veinlets. Refer WCE ASX Announcement “Elizabeth Hill New High Grade Silver Discovery”dated 9 July 2026. Elizabeth Hill Head Frames: Historic mine infrastructure at the high-grade Elizabeth Hill Silver Project, where drilling is targeting extensions to the known silver mineralisation along the Munni Munni Fault. Drill Site Operations: Core drilling setup and ancillary equipment deployed on-site during the latest phase of resource expansion drilling at Elizabeth Hill. High-Grade Native Silver: Exceptional hands specimen of native silver mineralisation featuring coarse metallic growths within quartz-carbonate host rock from Elizabeth Hill. Refer WCE ASX Announcement “Elizabeth Hill Identifies Potential 5-Element Silver System” dated 18 June 2026. 26WCDD029 Elizabeth Hill Historical Mine Headframes Native Silver Veins 18 19 Note: As of 21 October 2026. 1Cash as last reported 30 September 2026. Shares on Issue 435,742,147 Share Price A$0.061 Market Capitalisation A$26.6M Cash A$5.6m Implied Enterprise Value A$21.0m Average Daily Turnover ($) 6 months $113,445 Corporate Overview – ASX: WCE Source: S&P Capital IQ Pro. 1https://sprottetfs.com/slvr-sprott-silver-miners-physical-silver-etf/ Capital Structure Share Performance The Sprott Silver Miners & Physical Silver ETF (NASDAQ: SLVR) holds approximately A$0.6m / US$0.43m of WCE shares¹ Balance 57% Top Twenty 43% Institutions, 20% Retail, 73% ~7.0% Ownership Structure Note: As of 21 October 2026. Corporate Alien Metals Ltd (AIM: UFO) — ~7.0% strategic shareholding and 30% joint venture interest in the Elizabeth Hill Project 0 5 10 0.00 0.10 0.20 0.30 Oct-25 Dec-25 Feb-26 Apr-26 Jun-26 Aug-26 Oct-26 Volume (m) Share Price ($/sh) Volume Price 20 Executive and Management Team Experienced team with proven development track record EXECUTIVE DIRECTOR – CORPORATE AND FINANCE Mr. Bruce Garlick Mr. Garlick is a finance, governance, and accounting professional with experience across nickel, copper, lead, and PGM exploration, development, and operations. He has held senior roles globally, including at Normandy Mining (now Newmont), Platinum Australia, and MI Energy. He is currently a Non-Executive Director of Artemis Resources (ASX:ARV). Corporate Technical Advisory Board Corporate TECHNICAL ADVISORS David Lewis Technical Consultant Ian Stockton ERM Consultants Simon Tonkin Business Development Manager; formerly with Stifel Nicolaus, Patersons (now Canaccord) and Hartleys EXECUTIVE DIRECTOR & CHIEF EXECUTIVE OFFICER Mr. Sergei Smolonogov Mr. Sergei Smolonogov is a geologist with 30+ years’global experience in gold, copper and base-metals exploration and mine geology. He has held senior roles with Adriatic Metals (ASX:ADT), KAZ Minerals and Barrick, and was a key technical leader in advancing the Rupice polymetallic deposit into production. NON-EXECUTIVE DIRECTOR Mr. Thomas Reddicliffe Mr. Reddicliffe is a geologist with over 40 years’ exploration and evaluation experience primarily focused on Australia. Fellow of the Australian Institute of Mining and Metallurgy. Current Executive of GreenTech Metals (ASX:GRE) and Non-Executive Director of Gibb River Diamonds (ASX:GIB). NON-EXECUTIVE CHAIRMAN Mr. Vince Fayad Mr. Vince Fayad is a Chartered Accountant with over 40 years’experience in corporate finance, governance, M&A, and executive management. Formerly a Partner and Head of Corporate Finance at PKF Australia, he has held senior executive and board positions across several ASX-listed resources companies and has extensive experience executing acquisition, divestment and capital-raising strategies. This presentation has been authorised for release by the Board of West Coast Silver Limited. Exploration Manager TECHNICAL Angus (Gus) Hornabrook Exploration geologist with over 25 years' experience in mineral exploration, including involvement in the discovery of the Paris Silver Deposit in South Australia. Appendix 1: Selected Silver Project Peer Comparison As reported Measured Indicated Inferred Total Reported Company Ticker Mkt Cap. (A$m) Project Status Commodities Mt g/t Ag Moz Mt g/t Ag Moz Mt g/t Ag Moz Mt g/t Ag Moz g/t Ag Eq. Moz Ag Eq. % silver Source: ASX Link Unico Silver USL 432.8 Joaquin / Cerro Leon PFS Underway Ag, Au, Zn, Pb and In 43.9 93 131.9 32.4 52 53.1 76.3 76 185.0 135 330 56% 17-Mar-26 https://announcements.asx.com.au/asxpdf/20260317/pdf/06xhxch15zdl7t.pdf Andean Silver ASL 344.3 Cerro Bayo Resource Ag, Au 4.7 176 27.0 15.3 57 28.0 20.0 85 55.0 211 136 40% 30-Jun-26 https://announcements.asx.com.au/asxpdf/20260630/pdf/0714sqhkyz1crw.pdf Silver Mines SVL 255.2 Bowdens Feasibility Ag, Zn, Pb, Au 105 41 139 38.0 23 29 30 16 16 173.0 33 184.0 51 286 65% 21-Jul-26 https://announcements.asx.com.au/asxpdf/20260721/pdf/071x1lllvsmzyb.pdf Maritana Minerals MRT 227.2 Nimbus Resource (idle) Ag, Au, Zn 3.62 102 11.9 3.2 48 4.9 5.3 20 3.5 12.1 52 20.2 NP NP 1-Aug-24 https://announcements.asx.com.au/asxpdf/20260429/pdf/06yyyt968sbz4m.pdf Boab Metals BML 188.0 Sorby Hills Construction Pb, Zn, Ag 13.1 42 17.6 12.7 31 12.8 24.9 30 24.3 50.6 34 54.7 NP NP 29-Sep-26 https://announcements.asx.com.au/asxpdf/20260929/pdf/074mz8ww127nsx.pdf Maronan Metals MMA 122.6 Maronan PFS underway Ag, Pb 5.3 116 19.6 27.9 107 95.1 33.1 108 114.5 NP NP 6-Jun-25 https://announcements.asx.com.au/asxpdf/20250606/pdf/06kj3yzhm1vd2h.pdf Investigator Silver IVR 115.4 Paris DFS Complete Ag, Pb 17.0 75 41.0 7.2 67 16.0 24.0 73 57.0 NP NP 27-Feb-26 https://announcements.asx.com.au/asxpdf/20260227/pdf/06ww71sgq71r25.pdf Manuka Resources MKR 97.1 Wonawinta Au Production Restart Ag, Pb 1.1 47.3 1.7 12.3 45.5 18.0 24.9 39.0 31.3 38.3 41.3 50.9 NP NP 23-Mar-26 https://announcements.asx.com.au/asxpdf/20260323/pdf/06xqbbd0dh55pm.pdf Mithril Silver and Gold MTH 35.6 Copalquin T1 Resource Au, Ag 3.39 77.8 8.5 1.44 73.6 3.40 4.83 76.6 11.9 NP NP 30-Jun-26 https://announcements.asx.com.au/asxpdf/20260630/pdf/07158lblgc77mm.pdf Rapid Critical Metals RCM 32.3 Webbs & Conrad Resource Ag, Cu, Pb, Sb, Zn 2.7 106 9.0 2.8 109 10 5.5 107 19.1 200 35 54% 22-May-25 https://announcements.asx.com.au/asxpdf/20250522/pdf/06jzp04m4v58c0.pdf Iltani Resources ILT 29.1 Orient Resource Ag, In 38.8 23 28.9 23.7 22.3 17.0 62.5 22.8 45.9 81.5 163.8 28% 30-Oct-25 https://announcements.asx.com.au/asxpdf/20251030/pdf/06r87zdd1q7dt3.pdf West Coast Silver WCE 26.6 Elizabeth Hill Resource Ag 0.084 137 0.369 0.057 1,331 2.426 0.141 617 2.795 617 2.795 100% 22-Apr-26 https://announcements.asx.com.au/asxpdf/20260422/pdf/06yqtqhkslztvy.pdf Lode Resources LDR 16.0 Montezuma Resource Ag, Sb, Cu, Pb 0.31 172 1.7 0.17 173 0.9 0.48 173 2.7 533 8.2 32% 14-Apr-26 https://announcements.asx.com.au/asxpdf/20260414/pdf/06ygdyn5f68zw0.pdf Patriot Resources PAT 15.3 Tassa Resource Ag, Au, Cu, Pb, Zn 18.5 42.7 25.5 18.5 42.7 25.5 52.68 31.39 81% 16-Feb-26 https://announcements.asx.com.au/asxpdf/20260216/pdf/06wbngd1n9zkh9.pdf Endurance Mining Unlisted (previous ASX) Abra Operations Pb, Ag 7.3 29.8 7.0 10.4 14.7 4.9 13.5 15.3 6.6 31.1 18.5 18.5 NP NP 1-Jan-26 https://endurancemining.com.au/our-assets/resources-and-reserves/ 21 Source: Cap IQ Pro for Market Cap (as at 21 October 2026), ASX Announcements, Company Reports (as sourced). % silver is calculated from reported g/t Ag divided by g/t Ag Eq. NP = Not published Reported AgEq is shown separately and is not used in the grade bands. Peer Mineral Resource Estimates are presented as originally reported by the respective companies at the announcement dates shown. Estimates differ in reporting date, cut-off grade, resource classification, commodity composition and technical assumptions, and may not be directly comparable. Market capitalisations are indicative and subject to change. Contact ASX | WCE Advancing Australia’s Highest-Grade ASX-Listed Silver Project Elizabeth Hill westcoastsilver.com.au Sergei Smolonogov Chief Executive Officer info@westcoastsilver.com.au +61 8 9322 3383 Investor & Media Relations Dannika Warburton - Investability westcoastsilver@investability.com.au +61 401 094 261