Announcement PDF ASX: WCS ANNOUNCEMENT 31 July 2025 Quarterly Activities Report for period ending 30 June 2025 West Coast Silver (“West Coast” or “ The Company”) is pleased to present the Company’s quarterly activities report for the quarter ending 30 June 2025 (“the Quarter”). During the 4th Quarter (April – June 2025): The primary focus of the Company’s activities over the Quarter was on the Elizabeth Hill Silver Project where the inaugural drilling campaign produced some outstanding results including a spectacular 15,071g/t Silver (Ag) interval in the first drill hole of inaugural campaign. West Coast owns 70% of the historical Elizabeth Hill Silver Project (“Project” or “Elizabeth Hill”), 70% of the silver rights to the Pinderi Hills Project tenement package and 70% of the ownership of 3 tenements or tenement applications surrounding the silver project. This collective tenement package totalling 180km2 is in the Tier 1 mining jurisdiction of the Pilbara, Western Australia. Commenting on the quarter, Executive Chairman Bruce Garlick said: “We are extremely pleased with this exceptional start to our exploration program at Elizabeth Hill. We have intersected high-grade silver from close to surface in our first two holes”. This is a tremendous result and we now look forward to further results from the inaugural drilling program.” “But we have now also turned our eye to future works. We are well funded after a heavily oversubscribed $6million capital raising and we plan on unlocking the true potential of the Elizabeth Hill Project.” Elizabeth Hill Silver Project Highlights • Assays have returned a 21 metre intercept from 10 metre with a spectacular 15,071g/t Silver (Ag) interval in the first drill hole of the inaugural campaign. • Drill hole 25WCDD001, the first drill hole completed from the 2025 program has returned a significant high-grade silver zone including » 21 metres at 1,047g/t Ag from 10 metres including. • 8 metres at 2,632 g/t Ag from 22 metres including • Spectacular grade of 1 metre at 15,071 g/t Ag from 27 metres. • Impressive near surface results from drill hole 25WWCDD002 including: » 15m at 723g/t Ag from 1 metre including: • 3m at 2,639g/t Ag from 1 metre. • Gold (Au) reported in lab assays with peak assay from drill hole 25WWCDD002 returned: » 1 metre at 2.03g/t Au from 4 metres. WEST COAST SILVER LIMITED ASX | WCE REGISTERED OFFICE Level 2, 10 Ord Street West Perth, WA 6005 info@westcoastsilver.com.au ACN: 155 472 834 PO Box 1227, West Perth WA 6872, Australia westcoastsilver.com.au +61 8 9322 3383 1 ASX: WCS ANNOUNCEMENT 31 July 2025 • To date, only assay results for holes 25WCDD001 & 25WCDD002, have been received from the laboratory. However, the new intersections of near-surface high grade silver provide impetus for further evaluation and quantification of potential economic shallow silver mineralization. • Review of historical drilling data provides additional indication of economic near surface mineralisation • The additional 8 drill holes have been dispatched to the laboratory for assay with assay results expected progressively over a 6–8-week period. • Silver assays of up to 490 g/t Ag have been returned from float and rock chip sampling near mine and beyond • Distribution of silver-rich float samples indicates potential for additional source areas to the north and south of the historic Elizabeth Hill high-grade silver mine • Planning already underway for follow on drill programs following completion of the inaugural program. • Growth potential through regional targeting for look-a-like Elizabeth Hill silver deposits within large 180km2 land package. Errabiddy Falcon JV • During the quarter Falcon Metals, West Coasts' JV Partner continued with reconnaissance and soil sampling activities on tenement E09/2457 with a focus on the Olsen Well gold in soil anomaly. Other Projects • Due to the focus on the drilling of the Elizabeth Hill Silver Project no field activities were undertaken on the company’s other exploration projects. • The Company terminated its Lithium focused Pinderi Hills JV agreement with Alien Metals to align with the Company strategy as a silver focused explorer/developer. Corporate • The Company had $1.4 million in cash and securities on hand as of 30 June 2025. • Subsequent to the quarter end West Coast received firm commitments totalling $6.125 million via a share placement to a broad range of new institutional and sophisticated investors. • The Placement was priced at $0.11 per share representing a premium of 0.04% to the 15-day VWAP to 21 July 2025. • During the Quarter Bruce Garlick transitioned to Executive Chairman to lead the Company through its transition to a silver focussed explorer and developer. WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 2 ASX: WCS ANNOUNCEMENT 31 July 2025 West Coast Silver is pleased to present the Company’s quarterly activities report for the quarter ending 30 June 2025. EXPLORATION Elizabeth Hill Silver Project Inaugural Drill Program & Historical Drilling Assessment During the quarter the Company commenced its inaugural drill program at the Elizabeth Hill Project. This comprised of 12 diamond core holes for a combined 1,183m. This was completed post quarter end. Assay results have been received for the initial 2 holes of the program. This inaugural diamond drill program at the high-grade Elizabeth Hill Silver Project in the Pilbara has delivered exceptional results, with shallow, high-grade silver assays returned from the first two drill holes, 25WCDD001 and 25WCDD002 (Figure 2 - Cross Section Showing 25WCDD001 intercept & Figure 3 - Cross Section Showing 25WCDD002 ); Both holes intersected mineralisation from near surface, with particularly impressive results from hole 25WCDD001 which intersected: • 21 metres at 1,047g/t from 10 metres including o 8 metres at 2,632 g/t from 22 metres including,  A Spectacular interval of 1 metre at 15,071 g/t from 27 metres. Hole 25WCDD002 intersected: • 15 metres at 729g/t from 1 metre including: o 3 metres at 2,639g/t from 1 metre. Drill hole 25WCDD001 was designed to twin historic Alien Metals RC drill hole 22AMC001 which intersected: • 21 metres at 730g/t Ag from 12 metres. Hole ID Interval (m) Ag (g/t) Ag ( Troy oz/t) From (m) 25WCDD001 21 1,047 35.66 10 8 2,632 84.65 22 25WCDD001 1 15,071 484.56 27 25WCDD002 15 723km 23.45 1 3 2,639 84.87 1 Including 25WCDD001 and including 25WCDD002 Table.7.­.Significant.Intercept.Table.Inaugural.Drilling. The shallow high-grade nature of these silver results gave the Company confidence in the near surface potential of Elizabeth Hill. As such the Company engaged ERM Consultants to carry out a comprehensive analysis of all historical drilling at Elizabeth Hill with a view to quantifying the near surface silver mineralisation. This process included all QA/QC checks required to ensure all historical data is of sufficient quality to be reported from a JORC 2012 perspective and identified some extremely encouraging historical intercepts including: WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 3 ASX: WCS ANNOUNCEMENT 31 July 2025 Hole ID Interval (m) Ag (g/t) From (m) 21EHDD003 3.7 6,953 13 21EHDD003 5.7 6,503 19 EC049 4 6,240 38 21EHDD001 15 1,487 2 22AMC001 21 730 12 AMEHRC009 4 3,788 27 EC042 3 4,035 19 25WCDD002 3 2,639 1 EC092 1 204 1 including Table.8.‗.Historical.Drilling.Notable.Results Figure.7.­.Plan.view.of.West.Coast.Silver.diamond.core.drilling.and.historical.drilling WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 4 ASX: WCS ANNOUNCEMENT 31 July 2025 Figure.8.‗.Cross.Section.Showing.8❶WCDD667.intercept.™ .historical.intercepts Figure.9.‗.Cross.Section.Showing.8❶WCDD668.intercept.™ .historical.intercepts WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 5 ASX: WCS ANNOUNCEMENT 31 July 2025 Anomalous Gold, Lead, Zinc and Copper assay values returned from the drilling programme will also be further assessed. Core from the next 8 holes has been cut, and half-core samples have been sent for assay, which are expected to be returned within 6–8 weeks. Result timeframes may vary pending laboratory analysis requirements for further testing. 12 diamond drill holes have been completed at Elizabeth Hill for 1183m. Drilling has now been completed at site and the drill rig has been demobilised. Rock Chip Sampling Program During the quarter a reconnaissance rock chip and rock float sampling program was completed with 115 samples collected. The program has returned significant assay results, confirming the presence of anomalous silver, copper, and gold mineralisation in areas both north and south of the historic Elizabeth Hill high-grade silver mine. Notable assay results from the complete results include: • • • • • 25EW06-062: 490 g/t Ag, 0.03 g/t Au, 0.17% Cu; 25EW06-057: 316 g/t Ag, 0.19 g/t Au, 0.11% Cu; 25EW06-063: 276 g/t Ag, 0.13 g/t Au, 0.14% Cu; 25EW06-025: 179 g/t Ag, 0.42% Cu; and 25EW06-064: 178 g/t Ag, 0.1% Cu. These significant silver assay results reported up to 490 g/t Ag and with variably associated gold and copper up to 0.19 g/t Au, and 0.42% Cu and occur in two key areas relative to the historic high-grade silver mine. A cluster of samples grading >100 g/t Ag are located over an area 200–500 m north of the mine, while an isolated sample (170 g/t Ag) lies ~200 m to the south (Figure 4– Location of float sample assay results north and south of the historical Elizabeth high grade silver mine). The results suggest potential for additional new mineralised source areas and are possibly related to the northsouth trending Munni Munni fault system. Figure.0­.Location.of.float.sample.assay.results.north.and.south.of.the.historical.Elizabeth.high.grade.silver.mine WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 6 ASX: WCS ANNOUNCEMENT 31 July 2025 Soil Sampling Program Regional reconnaissance and follow-up soil sampling was completed in targeted areas with 1,979 samples collected. All samples have been dispatched to ALS Global Laboratories and results are pending. Forward Work Planning The Company will continue with its systematic approach to exploring Elizabeth Hill and the surrounding areas. This includes: • • • • • Ongoing Trenching, mapping, and additional rock chip sampling. Assessment of completed soil sampling program for the broader land package (assays pending) for inclusion in broader targeting works. Completion of near mine and regional targeting works including prioritisation of targets; Development of follow-on drill campaigns to the inaugural campaign including consideration for air core, reverse circulation and additional diamond drilling. Fieldwork Exploration including: o Field reconnaissance and mapping. o Geochemical and geophysical works; and o Regional Exploration including assessment and prioritisation of targets. Figure.❶.‗.Regional.Prospectivity.at.Elizabeth.Hill. WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 7 ASX: WCS ANNOUNCEMENT 31 July 2025 About the Elizabeth Hill Project Elizabeth Hill is one of Australia’s high-grade silver projects and has a proven production history outlined below: • • • • • High grades enabled low processing tonnes: 1.2Moz of silver was produced from just 16,830t of ore at a head grade of 2,194g/t (70.5 oz/t Ag) 1. Previous mining operation ceased in 2000: because of low silver prices (US$5) 2 Simplistic historical processing technique: native silver was recovered via low-cost gravity separation techniques. Untapped potential remains in ground with deposit open at depth and recent consolidation of land package offers potential to discover more Elizabeth Hill style deposits. Tier 1 Mining Jurisdiction located on a mining lease with potential processing option at the nearby Radio Hill site. Figure.❷.– Location of Project Combined Tenements Through the consolidation of the surrounding land packages into a single contiguous 180km2 package significant exploration and growth potential exists both near mine and regionally. The land package holds a significant portion of the Munni Munni fault system which is considered prospective for Elizabeth Hill look-a-like silver deposits. 1 WAMEX Annual Report,1 April 2014 to 31 March 2015, Elizabeth Hill Silver Project, Global Strategic Metals NL, p16 2 www.kitco.com/charts/silver WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 8 ASX: WCS ANNOUNCEMENT 31 July 2025 Andover West Lithium Potential The Andover West Project is located 30km south-east of Karratha with exploration initially targeting only mafic intrusion hosted nickel-copper mineralisation. However, the significant Lithium-Caesium-Tantalum (“LCT”) pegmatite discoveries reported by Azure Minerals and their ongoing evaluation highlighted the potential for LCT pegmatite on West Coast Silver’s adjoining tenement. West Coast Silver subsequently identified two prospective lithium pegmatite swarms 3 within its project tenement located along strike of the discoveries made by Azure Minerals. Despite the prospectivity for LCT pegmatites the company has not progressed the exploration due to the significant retreat of the lithium price. Gold Potential A review of the gold potential within tenement E47/4352 identified the White Quartz Hill (“WQH”) Prospect where Fox Resources 4 has previously reported the occurrence of gold associated with structures over a strike of 5km. Pinderri Hills JV The Company terminated its Lithium focused Pinderi Hills JV agreement 5 with Alien Metals to align with the Company strategy as a silver focused explorer/developer. Errabiddy The Errabiddy project comprises 7 tenements with a combined area of approximately 1,000km2 and which are considered prospective for Ni, Cu, Au, REE’s, Li and graphite. The results from routine reconnaissance prospecting, soil sampling and rock chip sampling which was previously undertaken on the project by West Coast Silver has resulted in an initial focus on graphite and gold. Falcon Metals Joint Venture During the previous quarter, West Coast Silver entered an Earn-in, Joint Venture and Mineral Rights Agreement with Falcon ASX-listed (ASX: FAL) (“Falcon”), granting Falcon the right to earn up to a 70% interest in Exploration Licence E09/2457 by spending $2 million in two stages over a 60-month period, covering all minerals excluding graphite. The Errabiddy Gold Project is a craton margin gold target, located 220km northwest of Meekatharra in Western Australia. The 519km2 license covers a 42km strike extent of the Errabiddy shear zone which is considered highly prospective and remains underexplored and with no exploration drilling for gold conducted within the project tenure. The Errabiddy shear zone is a compelling Cratonic margin gold target which contains known gold mineralisation. Cratonic margins are considered prospective for the formation of large gold deposits, including the Tropicana deposit that was discovered on the eastern margin of the Yilgarn Craton in 2005 through the follow up of a regional public domain gold-in-soil anomaly. West Coast Silver initially identified Olsen Well as a target from a review of public domain Bulk Leach Extractable Gold (“BLEG”) stream sediment data that highlighted this area. Additionally, regional geochemical sampling by the Geological Survey of Western Australia, with a 4km spaced geochemical grid, detected a 6 ppb Au anomaly near Olsen Well. WCE Announcement (ASX:WCE) 13 May 2024 FXR Announcement (ASX:FXR) 12 October 2012 5 WCE Announcement (ASX:WCE) 29 April 2024 3 4 WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 9 ASX: WCS ANNOUNCEMENT 31 July 2025 The sampling undertaken by West Coast Silver in 2023 has shown that the Olsen Well prospect is a significant gold in soil anomaly with a surface extent of 3km x 1km with a peak soil value of 234ppb Au. The soil sampling grid was 300m x 100m with 462 samples collected and with the anomaly coincident with quartz and Fe rich rocks hosted within a granitic terrain. During the quarter Falcon Metals continued with its reconnaissance and soil sampling activities undertaking a 465-sample ultrafine soil survey over the Olsen Well Target. Consisting of three phases; orientation sampling, infill sampling and extensional sampling, Falcon successfully increased the strike extent of the anomaly at a >10ppb Au threshold from 3km to 5.8km length. Other Projects The Company has relinquished both of its Fraser Range tenements and also relinquished its Errabiddy tenement E09/2410. The Binti Binti/Gindalbi gold project comprises sole tenement E27/577. The tenement has significant gold prospectivity with a new potential gold anomalous zone identified. While investigation of this new gold target area is continuing the company is also assessing corporate opportunities with respect to this project. CORPORATE & FINANCE Capital Raising Subsequent to the quarter end West Coast received firm commitments from new institutional and new and existing sophisticated and professional investors to raise $6.125 million (before costs) by way of a placement of shares. Use of Funds Proceeds of the Placement are planned to be used at Elizabeth Hill Project to cover further exploration, resource definition of the near surface mineralisation, near mine and regional exploration and commencement of internal restart studies. Other uses include general working capital and costs associated with the Placement. Placement Details The placement (“Placement”) will result in the issue of up to 55,681,819 fully paid ordinary shares at an issue price of $0.11 per share (“New Shares”). The Placement issue price of $0.11 represents 4.3% discount to the Company’s ten (10) days volume weighted average price (“VWAP”) and 0.04% premium to the Company’s fifteen (15) days VWAP. The Placement will be issued in two tranches: • • Tranche One (“T1”) will be pursuant to Company’s placement capacity under ASX Listing Rule (LR) 7.1 for 33,651,681 New Shares and 7.1A for 21,439,229 New Shares totaling to 55,090,910 New Shares; and Tranche Two (“T2”) will consist of up to 590,909 New shares as Director’s and associates’ participations, which are subject to shareholder approval to be sought at the next General Meeting. The placement was led by CPS Capital Group Pty Ltd (“CPS Capital”) for which they will receive standard capital raising fees together with 10 million options to be issued at $0.00001, with an exercise price of $0.155 each expiring 3 years from the date of issue (“Corporate Options”) which will be subject to shareholder approval at the Company’s next General Meeting. WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 10 ASX: WCS ANNOUNCEMENT 31 July 2025 Appointment of Executive Chairman Bruce Garlick During the quarter Mr. Bruce Garlick was appointed Executive Chairman to lead the Company’s transition to a silver explorer and developer. Mr. Garlick holds a Bachelor of Commerce, Bachelor of Laws, Certified Practising Accountant and is a Finance Executive who has over thirty years’ experience in mining, exploration, and engineering. Mr Garlick has worked both in Australia and Internationally on large open pit, and underground mining operations including base metals, and gold Issued Capital The capital structure of the Company as of 30 June 2025 was: Description Number on issue Ordinary fully paid shares 260,120,976 Unlisted Options exercisable at $0.25 on or before 25 September 2025 1,500,000 Unlisted Options exercisable at $0.25 on or before 30 November 2025 1,500,000 Unlisted Options exercisable at $0.40 on or before 21 April 2026 2,000,000 Unlisted Options exercisable at $0.18 on or before 30 October 2026 3,525,000 Unlisted Options exercisable at $0.117 on or before 25 November 2027 1,200,000 Unlisted Options exercisable at $0.04 on or before 18 May 2028 11,000,000 Unlisted Options exercisable at $0.04 on or before 20 May 2028 8,437,500 Performance Rights Class B on or before 21 April 2027 5,000,000 Performance Rights expiring on or before 18 May 2028 10,000,000 Finance West Coast Silver announced a capital raising on 24 March 2025 of $3 million before costs. Tranche 1 funds of $631,264 were received on 1 April 2025 after the company issued 23,380,166 shares at $0.027 per share before costs. Tranche 2 comprises the balance of the $3M capital raise which is subject to shareholder approval at a General Meeting to be held on 19 May 2025. The Company had $1.4 million cash and approximately $233,600 in securities on hand as of 30 June 2025. In July, the Company sold the securities of hand and received approximately $217,000 as working capital. Related Party payments for the quarter outlined in Appendix 5B at section 6.1 and 6.2 total $724,000 and include amounts paid to directors for salary, directors’ fees, consultancy fees, office rent, and statutory superannuation including $600,000 paid for the purchase of Elizabeth Hill Project from Alien Metals and GreenTech Metals. WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 11 ASX: WCS ANNOUNCEMENT 31 July 2025 This ASX announcement has been authorised for release by the Board of Directors of West Coast Silver Limited. For further information, please contact: Bruce Garlick Executive Chairman West Coast Silver Limited E: info@westcoastsilver.com.au Competent Person Statement The information in this report that relates to Exploration Results is based on information compiled by Mr Rob Mosig a Competent Person who is a Fellow of the Australasian Institute of Mining and Metallurgy. Mr Mosig is a Director of West Coast Silver. Mr Mosig 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 ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’, and a Specialist under the 2015 Edition of the ‘Australasian Code for Public Reporting of technical assessments and valuations of mineral assets’. Mr Mosig consents to the inclusion in the report of the matters based on his information and in the form and context in which it appears. Forward-Looking Statements Statements in this announcement which are not statements of historical facts, including but not limited to those relating to the proposed transaction, are forward-looking statements. These statements instead 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 and 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. 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 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 the Company and its directors, staff and consultants. WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 12 ASX: WCS ANNOUNCEMENT 31 July 2025 ASX ANNOUNCEMENT ASX announcements referenced in this release and were announced during the quarter to date include: Date Announcement title 01/04/2025 Application for quotation of securities - ERW 01/04/2025 Completion of Tranche 1 $3M Placement & Cleansing Note 02/04/2025 Fieldwork Commences at Elizabeth Hill Project 17/04/2025 Notice of General Meeting 17/04/2025 Executive Director - Key Engagement Terms 22/04/2025 Inaugural Drilling at Elizabeth Hill & Exploration Updates 23/04/2025 Notification of cessation of securities - ERW 29/04/2025 Errawarra Resources Advances Elizabeth Hill Silver Project with Strategic Acquisition and Strong Financial Position 29/04/2025 Quarterly Activities and Cashflow Report 07/05/2025 Change of Director's Interest Notice (BG) 08/05/2025 Drill Contract Awarded at Elizabeth Hill 13/05/2025 Change of Director's Interest Notice (TR) 15/05/2023 Silver surface samples up to 920g/t returned via pXRF 19/05/2023 General Meeting Voting Resul 19/05/2023 Cancel - Proposed issue of securities - ERW 19/05/2023 Application for quotation of securities - ERW 19/05/2023 Notification regarding unquoted securities - ERW 19/05/2023 Notification regarding unquoted securities - ERW 19/05/2023 Cleansing Notice 21/05/2023 Notification regarding unquoted securities - ERW 21/05/2023 Application for quotation of securities - ERW 21/05/2023 Change of Directors' Interest Notice (TR, BG & RM) 21/05/2025 Final Director's Interest Notice (ES) 21/05/2025 Cleansing Notice 22/05/2025 Completion of Elizabeth Hill Project Acquisition 22/05/2025 West Coast Silver Completes Acquisition of Elizabeth Project and Secures $3M Capital Raise 23/05/2025 Drilling Contractor Mobilisation Commences at Elizabeth Hill 23/05/2025 Ceasing to be a substantial holder (Sorrento) 23/05/2025 Notification regarding unquoted securities - WCE 23/05/2025 Cancel - Notification regarding unquoted securities - WC 23/05/2025 Application for quotation of securities - WCE 28/05/2025 Investor Presentation 28/05/2025 Application for quotation of securities - WCE 28/05/2025 Cleansing Notice 28/05/2025 Initial Substantial Holder Notice – J Peterson 30/05/2025 Updated Top 20 Shareholders 30/05/2025 Drilling Commences at Elizabeth Hill Project 02/06/2025 Becoming a substantial holder (Alien Metals) 03/06/2025 Change in substantial holding WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 13 ASX: WCS ANNOUNCEMENT 31 July 2025 Date Announcement title 10/06/2025 Board Change 11/06/2025 Shallow mineralisation intersected at Elizabeth Hill 30/06/2025 Notification of cessation of securities - WCE 03/07/2025 Proposed issue of securities – WCE 16/07/2025 High-Grade Silver Intercepts Near Surface at Elizabeth Hill 21/07/2025 Significant Silver Fieldwork Assays from Elizabeth Hill 22/07/2025 Falcon: Soil anomaly extended to 5.8km strike at Errabiddy 22/07/2025 Trading Halt 24/07/2025 Over $6M Raised to Accelerate Exploration at Elizabeth Hill 24/07/2025 Proposed issue of securities – WCE 24/07/2025 Investor Presentation 24/07/2025 Amended Significant Fieldwork Assays from Elizabeth Hill WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 14 ASX: WCS ANNOUNCEMENT 31 July 2025 TENEMENT SCHEDULE Current Tenement number Interest Start End Note 1 Location: Errabiddy, Australia E09/2346 80% 80% Tenement number Interest Start End 3 Location: Pinderi Hills, Australia E47/3322 0% 0% E09/2410 100% 0% E47/4422 0% 0% E09/2440 100% 100% E09/2457 100% 100% M47/0123 0% 0% M47/0124 0% 0% E09/2459 100% E52/3838 100% 100% M47/0125 0% 0% 100% M47/0126 0% E09/2652 100% 100% 0% E09/2602 100% 100% 2 Location: Andover West, Australia E47/4352 80% 80% 1 Location: Fraser Range, Australia E63/1771 70% 70% 6 4 Location: Elizabeth Hill, Australia E47/3535 0% 70% 3 P47/1832 0% P47/2033(A) 0% 0% M47/0342 0% 70% 1 Location: Binti Binti, Australia E27/0577 80% 80% Note 5 70% Note: 1 2 3 4 5 6 Errawarra Pty Ltd (ERR), the registered holder of the tenements, is a wholly owned subsidiary of Errawarra. Western Exploration Pty Ltd (WEX), the registered holder of the tenements, is an 80% interest owned subsidiary of Errawarra. WEX hold all mineral rights except the Fe rights at the Andover West project. ERR holds 80% of all minerals rights, title and interests. ERR holds/held 70% of all minerals rights, title and interests. WCE relinquished E63/1771 post quarter end. WCE withdrew from the Pinderi Hills Li JV post quarter end. WCE entered into a JV and purchase of tenements from GreenTech Metals (ASX: GRE). WCE is the manager of the JV. Application Tenement number Location: Fraser Range, Australia E63/2353 Relinquished or Lapsed Tenement number Location: Errabiddy, Australia E09/2410 (Surrendered 30/05/2025) Tenement number Location: Fraser Range, Australia E63/1941 (Surrendered 26/06/2025) E63/1771 (Surrendered 23/07/2025) WEST COAST SILVER LIMITED ASX | WCE westcoastsilver.com.au 15 Rule 5.5 Appendix 5B Mining exploration entity and oil and gas exploration entity quarterly cash flow report Name of entity WEST COAST SILVER LIMITED (previously ERRAWARRA RESOURCES LTD) ABN Quarter ended (“current quarter”) 95 155 472 834 Consolidated statement of cash flows 1. Cash flows from operating activities 1.1 Receipts from customers 1.2 Payments for 30 June 2025 Year to date (12 months) $A’000 Current quarter $A’000 – – (416) (1,112) (b) development – – (c) production – – (d) staff costs (71) (211) (e) administration and corporate costs (641) (1,161) (a) exploration & evaluation 1.3 Dividends received (see note 3) – – 1.4 Interest received 11 39 1.5 Inte