Announcement PDF ElizabethHillSilverProject Resource Growth Demonstrated ASX: WCE | JUNE 2026 High-Grade Silver with Development Potential 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 compiled by Mr Tom Redcliffe and Mr Ian Stockton, who are Competent Persons and Members of the Australasian Institute of Mining and Metallurgy. Mr Redcliffe is a Fellow of the Australasian Institute of Mining and Metallurgy (FAusIMM). Mr Stockton is a Fellow of the Australian Institute of Geologists (FAIG) and Registered Professional Geologist (RPGEO). Both Mr Redcliffe and Mr Stockton have sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as Competent Persons as defined in the 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves' (JORC Code). Mr Redcliffe and Mr Stockton consent to the inclusion in this report of the matters based on their 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. Cautionary Statement This document is confidential and may not be reproduced, redistributed or passed on, directly or indirectly. This document is neither a prospectus nor an offer to subscribe for fully paid ordinary shares. West Coast Silver Ltd (West Coast Silver) and its directors, employees and consultants make no representations or warranty as to the accuracy, reliability or completeness of this document, and have no liability, including liability to any person by reason of negligence of, or contained in or derived from, or for any omissions from this document, except liability under statute that cannot be excluded. This document contains reference to certain targets and plans of West Coast Silver which may or may not be achieved. The performance of West Coast Silver may be influenced by a number of factors, uncertainties and contingencies, many of which are outside the control of West Coast Silver and its directors, staff and consultants. WCE emphasises that visual estimates of mineral abundance should not be regarded as a proxy or substitute for laboratory analyses, particularly when concentrations or grades are of primary economic significance. Furthermore, visual estimates do not yield information concerning impurities or detrimental physical properties that are pertinent to valuations. Elizabeth Hill Silver Project Disclaimer De-Risked Asset: Proven Mine on Granted Lease Figure 1: Elizabeth Hill Exploration Tenement Package and Mine Location Strategic Pilbara Location Granted Mining Lease Proven Production Pedigree Processing Optionality • Located in established Pilbara mining hub • Granted ML → fast-track restart pathway • Historical production of 1.2 Moz Ag @ 2,194 g/t Ag (1999–2000). • Operations ceased due to low silver price (~US$5/oz), not geological or metallurgical constraints. • Multiple Processing Pathways (Low Complexity) Strategic Asset Elizabeth Hill Silver Mine 1999 - 2000 3 3 Processing Plant 10 km 30 km Solar & Energy Transition • Silver essential for solar cell conductivity (~15–20g per panel) • Solar PV consumed 29% of all industrial silver demand in 2024 • EU mandates solar integration in new buildings from 2026 EVs, AI & Electronics • EV charging infrastructure, AI data centres & 5G all silver-intensive • No technically viable substitute in most applications • These segments growing as PV silver use moderates Structural Supply Deficit • 6th consecutive year of supply deficit in 2026 (46.3 Moz shortfall) • ~70–80% of silver mined as a by-product — supply cannot easily ramp • Global mine supply growth limited to ~1% p.a. Safe Haven & Monetary Demand • Geopolitical tensions (Middle East) driving safe-haven flows • Silver outperformed gold in 2025: up ~130% YoY • J.P. Morgan forecast: average US$81/oz in 2026 Why Now: The Silver Price Backdrop Silver at multi-year highs — structural deficit entering its sixth consecutive year Silver Spot Price Performance (USD/oz) Source: S&P Cap IQ Pro Structural Demand Drivers — 6th Consecutive Year of Supply Deficit WCE is positioned at the intersection of this macro trend: Australia's highest-grade pure silver resource, unlocked as the silver price surges. Source: Silver Institute World Silver Survey 2026 (Metals Focus); Trading Economics; APMEX; J.P. Morgan Commodities Research 2026. Silver Market 4 30 40 50 60 70 80 90 100 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 Jun-26 US$/oz ~US$64/oz Current spot All Time High US$121.67/oz 29 Jan 2026 +76.8% US$121.67 ~US$64/oz 12-month performance All-time high (Jan 2026) Current (Jun 2026) 5 Investment Highlights Silver mineralisation extended 70m beyond the April 2026 MRE and remains open High-Grade Development Asset Resource Growth Confirmed Production-ready setting Open in all directions Multiple value catalysts in 2026 • 2.79Moz @ 617 g/t Ag (JORC 2012) — among the highest-grade undeveloped silver resources globally • Pure silver exposure — no polymetallic dilution (rare vs peers) • Silver mineralisation extended 70m beyond the April 2026 MRE1 • Broad intersections including 60m @ 25g/t Ag from surface • Majority of new mineralisation located outside the current resource • Clear pathway to future resource growth and scale expansion • Proven by history: 1.2Moz @ 2,194 g/t Ag with ~90% recoveries • Granted Mining Lease + historic mine → clear pathway to restart • MoU in place with Artemis Resource for Radio Hill processing facility (30km)2 • Mineralisation open at depth and along strike → repeatable system • Prospective 180km² tenure package along the Munni Munni Fault • RC/DD assays pending for areas north, west and below current MRE • Updated MRE and commencement of Scoping Study • Metallurgical test work Highlights “High-grade silver asset with resource growth now demonstrated beyond the maiden MRE and a clear pathway to production.” 1 Refer ASX Annoucement WCE “Silver Mineralisation Extended 70m Beyond Maiden Resource” dated 9 June 2026 2 Refer ASX Annoucement WCE “Artemis & West Coast Silver Sign Joint MOU on Radio Hill” dated 4 December 2025 Elizabeth Hill Mineral Resources JORC Classification Tonnes (kt) Ag (g/t) Ag (koz) Indicated 84 137 369 Inferred 57 1,331 2,426 Total 141 617 2,795 High-Grade Silver Resource: 2.8Moz Ag @ 617g/t Ag (JORC 2012) 6 Notes to the Mineral Resource: The Mineral Resource is reported in accordance with the JORC Code 2012 Edition. Mineral Resources are reported at a cut-off of 20 g/t Ag, constrained by an optimised open pit shell generated at A$85.71/oz Ag (well below current spot price). See Appendix for full pit optimisation parameters. The tonnes and grades have been reported inside the pit shell. Rounding may lead to minor apparent discrepancies. Visible Native Silver High-grade mineralisation Maiden JORC Resource (April 2026)1 104% 390% 898% % Increase vs Previous Resource Estimate (2011)2 1 Refer ASX Annoucement WCE “Elizabeth Hill Silver Project – 2.8 Moz Silver Mineral Resource Estimate” dated 22 April 2026 compliant with JORC (2012). 2 In August 2011 a Mineral Resource JORC (2004) was confined to a conceptual pit design approximately 15–30 m above the presumed location of the underground workings. Tonnes Grade Silver (oz) Resource 7 2026 RC Drilling Confirms Resource Growth Beyond Maiden MRE1 Growth Update Silver mineralisation extended up to 70m • 60m @ 25g/t Ag from surface, including • 19m @ 31g/t Ag (26WCRC004) • 28m @ 29g/t Ag from 2m, including • 26m @ 31g/t Ag ending in mineralisation (26WCRC002) • 14m @ 25g/t Ag from 3m, including • 9m @ 33g/t Ag (26WCRC003) • 16m @ 21g/t Ag from 26m, including • 5m @ 31g/t Ag (26WCRC003) • Multiple holes ended in mineralisation, demonstrating potential for further mineralization extension at depth. • Mineralisation confirmed up to 70m north of the April 2026 MRE • Diamond drilling underway to test depth extensions below RC intersections Resource growth now beyond the MRE, with mineralisation open along strike and at depth. Key Results 2026 Mineral Resource Estimate block model (yellow Inferred, red Indicated resources ) within optimised pit shell 26WCRC004 – 60m @ 25g/t Ag From 0m down hole 26WCRC002 – 28m @ 29g/t Ag from 2m down hole 26WCRC003 – 14m @ 25g/t Ag from 3m down hole; 26WCRC003 – 16m @ 21g/t Ag from 26m down hole 26WCRC001 Intercept 1 – 25m @ 15g/t Ag from 6m down hole; 26WCRC001 Intercept 2 – 21m @ 19g/t Ag from 36m down hole. 1 Refer ASX Annoucement WCE “Silver Mineralisation Extended 70m Beyond Maiden Resource” dated 9 June 2026 8 2026 RC Drilling Confirms Resource Growth Source: ASX: WCE announcement 9 June 2026, Table 1 and Figures 3. Rounding may lead to minor apparent discrepancies. Schematic Longitudinal Section, Elizabeth Hill Mine showing 2026 MRE optimized pit shell, historical workings mineralisation grade distribution, planned 2026 RC (17 Holes release on 9 June 2026 with 15 Remaining) and Diamond extension drilling (in progress). Geological Setting Recent RC Results Resource Growth Growth Vectors • Munni Munni Fault Zone (MMFZ) silver system • Mineralisation hosted in granite and ultramafics • Silver mineralisation extended 70m beyond the April 2026 MRE • Best result: 60m @ 25g/t Ag from surface • Majority of new mineralisation lies outside the current resource • Multiple holes ended in mineralisation • Mineralisation remains open at depth and along strike • 72m MMFZ intersected in 26WCRC023 (assays pending) High-Grades with strong growth vectors Growth 9 Development & Resource Growth Strategy Resource growth confirmed beyond the April 2026 MRE, with a clear pathway to production GROWTH (District Scale Silver System) • RC drilling extends silver mineralisation 70m beyond the April 2026 MRE (refer Figure right) • Broad intersections including 60m @ 25g/t Ag from surface • Majority of new mineralisation occurs outside the current resource boundary • Mineralisation remains open at depth and along strike • Focus: resource growth + new deposits → to quantify scale potential Dual Strategy: Development + Resource Growth DEVELOPMENT (De-risking / Production Pathway) • 2.79Moz @ 617g/t Ag maiden JORC Resource • Granted Mining Lease supports accelerated development pathway • Historic production of 1.2Moz @ 2,194g/t Ag • Simple metallurgy with ~90% historical recoveries • Focus: MRE upgrade, metallurgy and Scoping Study 1 2 10 Not a single deposit – a System of High-Grade Pods • Not a single deposit, a repeatable high-grade system. • Mineralisation structurally controlled. • Current MRE covers only a portion of the system. • Predictable exploration targeting as repeatable style of mineralisation. • Compelling exploration targeting drill-ready with clearly defined structural controls. Growth ‘String of Pearls’ exploration targets on, and off the Munni Munni Fault.. Plan View: Coincident surface mapping, sampling; aircore, RC drilling; geophysics defined multi-layer anomalism. All sitting at structural intersection points. Potential Silver Rich Zone Concept Long Section: structural model for mineralisation localization (D.Lewis 2026, WCE Internal Structural Report ). Concept Section: formation of dilational jog with potential mineralization (D.Lewis 2026, WCE Internal Structural Report ). Multiple high-grade targets within a repeatable silver system 11 District-Scale Silver Growth Opportunities Source: WCE ASX announcement 9 June 2026; Company Presentations. Surface sampling and historical data presented as indications of regional prospectivity Consolidated 180 km² Tenure Munni Munni Fault Corridor Under-Explored Regional Targets Active Drilling Pipeline • Granted Mining Lease and regional silver rights • Significant position along the Munni Munni Fault • Multiple structures and fault splays • Structures control Elizabeth Hill and regional silver targets • Multiple near-mine and regional prospects • Limited historical drilling outside Elizabeth Hill • Resource growth opportunities at Elizabeth Hill North • Regional discovery potential at Maitland and Elizabeth Hill South "Multiple under-explored targets provide a pathway to resource growth and new silver discoveries” Growth 12 Unrivalled Grade in a Pure Silver System 1 World leading silver grades chart is a comparison of the size of the resource vs the silver-only grade 2 Silver as a % of the commodity mix is silver only grade / silver equivalent grades when published •Refer to Appendix 2 for full details. WCE delivers a x3–x15 grade premium vs peers — with 100% silver exposure (no base metal dilution) Bubble size = Silver grade 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% West Coast Silver (WCE) Elizabeth Hill Patriot Resources (PAT) Tassa Silver Mines (SVL) Bowdens Rapid Critical Metals (RCM) Webbs & Conrad Lode Resources (LDR) Montezuma Mithril Silver and Gold (MTH) Copalquin Boab Metals (BML) Sorby Hills Iltani Resources Limited (ILT) Orient Silver as % of Commodities in Resource Pure Silver Play Andean Silver (ASL) Cerro Bayo Unico Silver (USL) Joaquin / Cerro Leon Silver Mines (SVL) Bowdens Maritana Minerals (MRT) Nimbus Boab Metals (BML) Sorby Hills Investigator Silver Limited (IVR) Peterlumbo Manuka Resources (MKR) Wonawinta Maronan Metals Limited (MMA) Maronan Mithril Silver and Gold (MTH) Copalquin West Coast Silver (WCE) Elizabeth Hill Rapid Critical Metals (RCM) Webbs & Conrad Iltani Resources Limited (ILT) Orient Patriot Resources (PAT) Tassa Lode Resources (LDR) Montezuma 0 100 200 300 400 500 600 700 800 0 50 100 150 200 Silver Only Grade (g/t Ag) Mt Leading Silver Grades Economic Implication Low tonnes @ one of industries highest average silver grades (617g/t Ag) – • Ability to mine to 20g/t Ag, • Absorb dilution, • Cherry-pick at higher cut-off-grades e.g. @ 60 g/t Ag CoG = 1,114g/t Ag for 2.72 Moz Ag • Can blend to increase recovery of very high grades. • Can blend to smooth out plant performance and loss of silver to tailings. • Every new tonne Ag >20g/t has significant impact on resources. 13 Exceptional Grade Concentration High value, low processing tonnage Source: ASX: WCE announcement 22 April 2026, Table 3. Rounding may lead to minor apparent discrepancies. Elizabeth Hill Grade-Tonnage Curve 0 200 400 600 800 1,000 1,200 1,400 1,600 0 20 40 60 80 100 120 140 160 20 g/t 40 g/t 60 g/t 80 g/t 100 g/t Grade (g/t Ag) Tonnes (kt) Cut-off Grade (g/t Ag) Tonnes (kt) Grade (g/t Ag) At a 60 g/t Cut-off Point 1,114 g/t Ag | 2.72 Moz Development 14 Processing Optionality 1 Refer ASX:WCE Announcement 4 December 2025 Low-complexity options to maximise value The Karratha Queen: Australia's largest native silver nugget (145kg, containing ~3,520 oz Ag), previously recovered from the Elizabeth Hill mine. Radio Hill Facility Proximity Located just 30 km from existing infrastructure. MoU in place with Artemis Resources for processing access1 Proven gravity recovery Proposed conventional flowsheet Direct Ship Ore (DSO) & Specimen Upside Primary Metallurgical Objective • Mining 1999–2000 recovered native silver using simple low-cost gravity separation. • Conventional circuit: Gravity → Merrill-Crowe cyanidation → Flotation. • Native silver specimens can return up to x5 metal value, presenting high- margin DSO and Specimen sales opportunities. • An optimised flowsheet maximising recoveries from high-grade native silver and sulphide mineralisation halo. Development 15 Advancing Resource Growth and Development Source: ASX: WCE announcement 9 June 2026. Drill Program Key Drill Priorities Recent Intercept Highlights Q4 2026 Catalysts • RC drilling complete at EH North • Diamond drilling underway at EH Main and EH Deeps • Assays pending for 15 RC holes including 26WCRC023 • Resource growth beyond 2026 MRE • Resource conversion • Test depth extensions below RC intersections • Silver mineralisation extended 70m beyond the April 2026 MRE • Majority of new mineralisation outside current resource • Multiple holes ended in mineralisation • Remaining RC assay results • Diamond drilling results • Updated Mineral Resource Estimate • Scoping Study commencement 2026 Exploration & Development Timeline Q2/CY26 Q3/CY26 Q4/CY26 EH North RC Drilling EH Main DD Program (Infill) EH Deeps DD Program Geophysics & Metallurgical Testwork Regional AC Drilling (Optional) MRE & Scoping Study RC Drilling DD Drilling Assay Results Testwork Maiden MRE Timeline Update MRE Scope Start Studies Multiple near-term catalysts expected through H2 2026 16 Note: As of 12 June 2026. Cash as last reported 31 March 2026. The Company is funded for its current drilling and testwork program. Investors should refer to the Company's quarterly activities report for the most recent cash position. Shares on Issue 362,426,356 Share Price A$0.12 Market Capitalisation A$43.5m Cash A$5.4m Implied Enterprise Value A$38.1m Average Daily Turnover ($) 6 months $389,681 Corporate Overview – ASX:WCE 0.00 5.00 10.00 15.00 0.00 0.10 0.20 0.30 Volume (m) Share Price ($/sh) Volume Price Source: S&P Capital IQ Pro. 1https://sprottetfs.com/slvr-sprott-silver-miners-physical-silver-etf/ Capital Structure Share Performance WCE ~US$0.5m investment in the Sprott Silver Miners & Physical Silver ETF (NASDAQ: SLVR)1 Balance 56% Top Twenty 44% Institutions, 16.87% Retail, 56.51% Insiders, 14.65% ~8.5% Ownership Structure Note: As of 12 June 2026. Corporate Alien Metals Ltd (AIM: UFO) ~8.5% strategic holding. 17 Key Executive and Management Experienced team with proven development track record EXECUTIVE CHAIRMAN 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). * Technical Director is a management and non-Board role Corporate Technical Advisory Board Corporate TECHNICAL ADVISORS David Lewis Technical Consultant Ian Stockton ERM Consultants Simon Tonkin Business Development Manager ex Stifel Nicolaus, Canaccord, Hartleys TECHNICAL DIRECTOR* 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 DIRECTOR Mr. Eugene Sharrock Mr. Sharrock is an experienced finance executive with over 20 years’experience across oil and gas exploration, mining services, and mineral exploration and development in Australia, New Zealand and Africa. He participated in the public listing of an oil and gas exploration company on the main board of the London Stock Exchange. Bachelor of Commerce, Chartered Accountant. 18 Why WCE Can Re-Rate Source: WCE ASX announcement 22 April 2026; Company Presentations. Surface sampling and historical data presented as indications of regional prospectivity, Based on silver-only grade per the Appendix 2 peer comparison. Part of wider 0.60m interval grading 26,618g/t (74.60m to 75.20m) in hole 25WCDD014 Orebody Specimen Elizabeth Hill Mine3 Australia’s Highest-Grade Silver Resource Pure Silver Play Near-term production pathway Resource Growth Confirmed 2026 Catalysts • High-grade starter operation → strong margin potential • 100% silver exposure — no polymetallic dilution • Direct leverage to silver price • High-grade, low-tonnage profile → low capex / fast payback potential • Silver mineralisation extended 70m beyond the April 2026 MRE • Broad intersections including 60m @ 25g/t Ag from surface • Remaining RC and diamond drilling assays pending • Updated MRE and commencement of Scoping Study Conclusion Transitioning from explorer → developer → potential producer Contact ASX | WCE One of Australia’s highest-grade silver projects Elizabeth Hill westcoastsilver.com.au Bruce Garlick Executive Chairman info@westcoastsilver.com.au +61 437 393 6000 Investor & Media Relations Dannika Warburton - Investability westcoastsilver@investability.com.au +61 401 094 261 20 Appendix 1: 2026 WCE Detailed Exploration Timeline Schedule for discovery, resource growth & development Mar Apr May Jun Jul Aug Sep Oct Nov Dec Feb Jan Q1/CY26 Q2/CY26 Q3/CY26 Q4/CY26 EH North & Main RC Drill Program EH North & Main RC Assay Results EH Deeps DD Program EH Deep DD Assay Results 3,100m RC program EH Main DD Program EH Main DD Assay Results 3,600m DD Program 2025 EH North, South, Main Aircore Assay Results 2025 EH Main DD Assay Results GeophysicalSurveys Mag,EM,IP,CSAMT EH Main & TSF Metallurgical Testwork Program EH MRE Update Start of Open Pit Scoping Study Note: DD= Diamond Drill hole, EH = Elizabeth Hill mine lease, CY = Calendar Year ` Planned 6,700m drilling, contingent on exploration success and staged program approvals. EH Maiden MRE Appendix 2: ASX Listed Silver Projects As reported Measured Indicated Inferred Total Reported Company Ticker Mkt Cap. ($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 379.87 Joaquin / Cerro Leon Resource Ag, Au, Zn, Pb and In 43.9 93 131. 7 32.4 52 54 76.3 76 185. 3 NP NP 17-Mar-26 https://announcements.asx.com.au/asxpdf/20260317/pdf/06xhxch15zdl7t.pdf Andean Silver ASL 380.67 Cerro Bayo Resource Ag, Au 1.0 331 10.6 8.8 136 38 9.8 151 47.5 1-Apr-25 https://announcements.asx.com.au/asxpdf/20250401/pdf/06h70z388t6tgd.pdf Silver Mines SVL 280.20 Bowdens Feasibility Ag, Zn, Pb, Au 100 42 43.0 21 29.0 36.0 14 16 179. 0 31 180. 0 58 334 54% 20-Dec-24 https://announcements.asx.com.au/asxpdf/20241220/pdf/06cwkm77l7k0pt.pdf Maritana Minerals MRT 252.86 Nimbus Feasibility Ag, Au, Zn 3.62 102 11.9 3.2 48 4.9 5.3 20 3 12.1 52 20.2 NP NP 30-Apr-15 https://announcements.asx.com.au/asxpdf/20150430/pdf/42y7d59db8440s.pdf Boab Metals BML 190.20 Sorby Hills Funded Pb, Zn, Ag 12.6 43 17.4 11.0 34 12.0 23.6 31 23 47.3 35 53.1 123 210 28% 17-Dec-21 https://announcements.asx.com.au/asxpdf/20211217/pdf/4548gyd0lqfdd6.pdf Investigator Silver IVR 132.68 Peterlumbo Feasibility Ag, Pb 17.0 75 40.9 7.2 67 15 24.0 73 56.2 NP NP 27-Feb-26 https://announcements.asx.com.au/asxpdf/20260227/pdf/06ww71sgq71r25.pdf Maronan Metals MMA 114.71 Maronan Prefeas/Scoping Cu, Au, Ag 5.3 116 19.7 27.9 107 96 33.2 108 115. 1 NP NP 6-Jun-25 https://announcements.asx.com.au/asxpdf/20250606/pdf/06kj3yzhm1vd2h.pdf Manuka Resources MKR 114.58 Wonawinta Prefeas/Scoping Ag, Pb 1.1 47.3 1.7 12.3 46 18.0 24.9 39 31 38.3 41 50.9 NP NP 23-Mar-26 https://announcements.asx.com.au/asxpdf/20260323/pdf/06xqbbd0dh55pm.pdf Mithril Silver and Gold MTH 47.80 Copalquin Resource Au, Ag 0.69 1 114 2.5 1.73 152 8.4 2.4 141 10.9 477 37 30% 17-Nov-21 https://announcements.asx.com.au/asxpdf/20211117/pdf/453247jz1srmd9.pdf West Coast Silver WCE 43.50 Elizabeth Hill Resource Ag 0.08 4 137 0.4 0.06 1331 2.4 0.1 617 2.8 617 3 100% 22-Apr-26 https://announcements.asx.com.au/asxpdf/20260422/pdf/06yqtqhkslztvy.pdf Rapid Critical Metals RCM 37.08 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 32.56 Orient Resource Ag, In 38.8 23 28.9 23.7 22 17 62.5 22.8 45.9 81.5 163.8 28% 30-Oct-25 https://announcements.asx.com.au/asxpdf/20251030/pdf/06r87zdd1q7dt3.pdf Patriot Resources PAT 20.52 Tassa Resource Ag, Au 18.5 31 19 18.5 31 18.7 53 31 60% 16-Feb-26 https://announcements.asx.com.au/asxpdf/20260216/pdf/06wbngd1n9zkh9.pdf Lode Resources LDR 21.23 Montezuma Resource Ag, Sb, Cu, Pb 0.31 172 1.7 0.17 173 0.2 0.5 173 0.5 533 8 32% 14-Apr-26 https://announcements.asx.com.au/asxpdf/20260414/pdf/06ygdyn5f68zw0.pdf 21 Source: Cap IQ Pro for Market Cap (as at 12 June 2026), ASX Announcements, Company Reports (as sourced). % silver is calculated from reported g/t Ag divided by g/t Ag Eq. 22 Appendix 3: Open Pit Optimization Reasonable prospects for eventual economic extraction (RPEEE) Source: ASX: WCE announcement 22 April 2026, Table 1 and Figures 2–4. Rounding may lead to minor apparent discrepancies. Key Whittle Pit Parameters Silver Price US$60 / oz Mining Cost A$4.50 / t Processing Cost A$45.57 / t feed Metallurgical Recovery 90% Payability 99% Overall Pit Slope 46 degrees Calculated Cut-off 20 g/t Ag View from southeast of model > 20 g/t Ag with pit shell. Yellow=Indicated, Red=Inferred; Orange traces show planned and current diamond holes and pink traces show planned and current RC holes. Robust at US$60/oz Well below current spot price, capturing almost all current mineralisation 23 Appendix 4: High Grade Native Silver at Elizabeth Hill 1 Refer to West Coast Silver Ltd ASX announcements dated 16 July 2025 & 22 August 2025 & 4 February 2026. 2 Recalculated from original published assays 3 Massive native silver specimen from Elizabeth Hill Refer to Alien Metals website: https://www.alienmetals.uk/project/silver-elizabeth-hill/ for photo Orebody Specimen Elizabeth Hill Mine3 Amongst the highest-grade Silver intercepts reported globally in 2025/26 Rank Intercept1 Interval (m) Grade (g/t Ag) Gram- Metres (g·m) 1 25WCDD0112 63.0 762 48,020 2 25WCDD014 27.4 1,314 36,009 3 25WCDD001 21.0 1,047 21,993 4 25WCDD0192 19.0 659 12,514 5 25WCDD0222 6.6 415 2,736 Top 5 Intercepts at Elizabeth Hill