Announcement PDF ASX:WCE ANNOUNCEMENT 5th August 2025 Twelve (12) near mine high priority targets defined at Elizabeth Hill Highlights • Exploration targeting to date has identified 12 high priority ranked near mine targets based on integrated geophysics, geochemistry, and geological data. • Some of the near mine targets include historical high-grade silver intersections from historical drill holes including: • 2m at 1,550g/t Ag from 108m downhole depth in AMEHRC012. • 1m at 250g/t Ag from 118m downhole depth in AG43. • A comprehensive and ongoing exploration targeting project integrating legacy and recently collected data sets, including geochemistry, reprocessed geophysics and geological data has highlighted significant exploration targets. • Reinterpretation of structural controls using reprocessed magnetic data has defined the key role of the Munni Munni fault and granite/ultramafic contact in hosting silver mineralisation. • An additional 8 near mine and regional targets were identified, which are less advanced and pending geochemical results to be returned from the analytical laboratory. • Next steps include detailed geological mapping, drilling of priority anomalies, trenching of ultramafic/granite contact and expansion of geochemical, geophysical and mapping coverage. West Coast Silver Limited (ASX: WCE) (‘West Coast Silver’ or the ‘Company’) is pleased to announce that following the assessment of the prospectivity within the historical mine environment (refer to WCE ASX Release dated 16 July 2025), WCE has completed an integrated near mine and regional targeting study at its flagship Elizabeth Hill Silver Project, located near Karratha in Western Australia. WEST COAST SILVER LIMITED ASX | WCE ACN: 155 472 834 REGISTERED OFFICE Level 2, 10 Ord Street West Perth, WA 6005 PO Box 1227, West Perth WA 6872, Australia info@westcoastsilver.com.au +61 8 9322 3383 westcoastsilver.com.au ASX:WCE ANNOUNCEMENT 5th August 2025 The study, led by independent consultants ERM (formally CSA Global), has significantly enhanced the Company’s understanding of structural controls and silver mineralisation potential across the project area, identifying numerous high priority near mine exploration targets for immediate testing. Commenting on the study results, Executive Chairman Bruce Garlick remarked: "This detailed targeting work has significantly upgraded our confidence in the broader potential of the Elizabeth Hill Silver Project.” “Our recent very successful fund raising allows us to move quickly into testing these new high-priority targets, particularly around the historic mine. The integration of multiple datasets has delivered a clear pathway to test for further silver occurrences." Integrated Targeting Study The integrated targeting study has delivered significant advancement in West Coast Silver’s geological understanding of the Elizabeth Hill Silver Project. Data sets investigated in this study include: • • • • • Historical near mine and regional drill hole data; Historical soil, multi-element geochemical data; West Coast Silver rock chip and float sample multi-element geochemical data; Review of historical trench geochemical data; and Historical magnetic, radiometric and gravity data. The analysis of the integrated data sets confirms the primary control on high-grade silver mineralisation at Elizabeth Hill is the intersection of the Munni Munni fault with the granite–ultramafic rock contact, a structurally favourable setting known to host significant mineralisation at the historical Elizabeth Hill underground mine. The re-evaluation of a large volume of historical and recent data sets led to the identification and ranking of 12 high priority targets on near-mine tenements. These targets were assessed based on the following criteria: 1. 2. 3. 4. 5. Proximity to key structural features such as north-trending faults and fault flexures. Proximity to granite/ultramafic rock contacts. Coherent silver-in-soil anomalies with multi-element support (including copper and zinc). Presence of gossanous material or historical float samples with elevated silver. Underexplored zones due to ineffective past drilling or transported cover in regolith. The 12 near-mine targets remain untested or ineffectively tested, particularly those to the south of the historic mine where the main silver shoot is interpreted to step down along east-trending faults. This step-down geometry provides a compelling exploration insight into the search for extensions of the highgrade silver mineralised zone. WEST COAST SILVER LIMITED ASX | WCE Page 2 ASX:WCE ANNOUNCEMENT 5th August 2025 Figure 1 - Near Mine (NM) Targets generated from data study (RTP Band Pass Filter Tilt Magnetic Image) WEST COAST SILVER LIMITED ASX | WCE Page 3 ASX:WCE ANNOUNCEMENT 5th August 2025 High Priority Exploration Targets – Near Mine The target generation study has defined two near mine targets (NM5 and NM1) for immediate follow up exploration (Figure 1, Figure 2, Table 1). Near mine target NM5 is located along the interpreted Munni Munni fault at the granite/ultramafic rock contact to the south of the Elizabeth Hill Silver Mine. It is supported by two very high-grade silver intersections in historical drill holes AG43 (1m @ 250g/t Ag from 118m downhole depth) and AMEHRC012 (2m @ 1,550g/t Ag from 108m downhole depth). Near mine target NM1 is located about 100m north of the historical Elizabeth Hill Silver Mine along the interpreted Munni Munni fault. This target is supported by one silver intersection in historical drill hole 22AMC011 (4m @ 60g/t Ag from 4m downhole depth) within a granite host rock and surrounded on the surface by three high-grade float samples and one high-grade rock chip sample (refer to WCE ASX Release dated 21 July 2025). Several other high priority targets are located at the eastern contact of the Munni Munni ultramafic/mafic intrusion and eastern granite (RS9, RS11 to RS15; Figure 1, Figure 2). These targets are supported by silver in soil anomalies and are located along an interpreted fault paralleling the eastern margin of the ultramafic/mafic Munni Munni intrusion in a similar structural position and host rock setting to the Elizabeth Hill Silver Mine. Near mine target NM3 is located about 200m west of the historical Elizabeth Hill Silver Mine and is supported by one silver intersection in drill hole EC052 (2m @ 74g/t Ag from 48m downhole depth) in granite host rock. Other near mine targets include NM2, located at a possible historical gossan occurrence, and NM6, located at an interpreted structural dilatational jog in the Munni Munni fault. Near mine target NM4 is supported by observations within the historical Elizabeth Hill Silver Mine, where silver mineralisation was identified at the lower contact of the ultramafic/mafic rock to the granite. Rank Target Type of Target Description 1 NM5 Drill Ag intersections in drill holes AMEHRC012 (2m @ 1,550g/t Ag) and AG43 (1m @250g/t Ag) at the ultramafic/granite contact, and interpreted location of the Munni Munni fault 2 NM1 Drill Ag in drill hole 22AMC011 (4m @ 60g/t Ag) 3 NM3 Drill Ag intersection in drill hole EC052 (2m @ 74g/t Ag) within granite 4 RS15 Soil Anomalous Ag in three 100m spaced soil lines 5 RS11 Soil Long coherent Ag soil anomaly defined over five sample lines 6 RS12 Soil Single soil line with anomalous Ag 7 RS13 Soil Single soil line with anomalous Ag 8 RS14 Soil Single soil line with anomalous Ag WEST COAST SILVER LIMITED ASX | WCE Page 4 ASX:WCE ANNOUNCEMENT 5th August 2025 Rank Target Type of Target Description 9 RS9 Soil 10 NM6 Geological/Structural Potential embayment in the ultramafic/granite contacts and structural dilatational jog in the Munni Munni fault 11 NM4 Geological Ultramafic footwall contact to granite is interpreted in NM4 and where drill tested in the historical mine sequence it is mineralised 12 NM2 Gossan Historical gossan outcrop, Ag in float samples Three-line Ag soil anomaly Table.7‗.Ranked.Priority.Targets.and.Targeting.Criteria The study also revealed coherent regional anomalies to the north and south of the mine along structures that are subparallel to the Munni Munni fault, highlighting broader structural repetitions or analogue targets within the belt. Exploration targeting is ongoing as newly completed geochemistry data is received and integrated with historical information. Other Priority Exploration Targets An additional eight exploration targets were identified in the near mine and regional scale with less mature data sets that currently do not meet the criteria for advanced exploration projects (Figures 1 & 2; Table 2). Additionally, some of these projects have pending geochemistry results to be integrated into the prospects. Rank Target Type of Target Justification 13 RS6 Soil Large 420m long Ag soil anomaly, anomalous Cu, no Pb or Zn 14 RS7 Soil Smaller 150m Ag soil anomaly 15 RS8 Soil Lower-level small Ag soil anomaly 16 RS10 Soil Two-line thin Ag soil anomaly 17 RS16 Soil Small three sample Ag soil anomaly Cu support 18 RS17 Soil Four-line Ag soil anomaly 19 RS18 Soil Small one line Ag soil anomaly 20 RS19 Soil Two-line Ag soil anomaly Table.8.‗.Additional.Exploration.Targets.requiring.more.investigation¡ WEST COAST SILVER LIMITED ASX | WCE Page 5 ASX:WCE ANNOUNCEMENT 5th August 2025 Figure.8.–.Further.top.76.targets.along.the.east.side.of.the.Munni.Munni.intrusion.(Overlaid.on.RTP.Band.Pass.Filter.Tilt. Magnetic.Image) WEST COAST SILVER LIMITED ASX | WCE Page 6 ASX:WCE ANNOUNCEMENT 5th August 2025 Forward Work Plan The Company will now utilise these data to define a fieldwork and drilling program to test the high priority near mine and regional targets. This fieldwork may include a combination of trenching, air core/RC drilling and geophysics. This work would be undertaken in parallel with exploration follow up of the previously announced shallow mineralisation in the Elizabeth Hill Silver Mine area (WCE ASX Release dated 16 July 2025). Cautionary Statement The potential quantity and grade is conceptual in nature. There has been insufficient exploration to estimate a Mineral Resource. It is uncertain if further exploration will result in the estimation of a Mineral Resource. WEST COAST SILVER LIMITED ASX | WCE Page 7 ASX:WCE ANNOUNCEMENT 5th August 2025 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 the deposit open at depth and recent consolidation of the 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 mine site. Figure.9.‗.Tenement.Location 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, and other fault systems subparallel to the Munni Munni fault system, which are 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 Page 8 ASX:WCE ANNOUNCEMENT 5th August 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 Director 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 Page 9 ASX:WCE ANNOUNCEMENT 5th August 2025 Appendix 1 – Historical Regional Drill Collar Locations Hole ID 18MMAD001 18MMAD002 18MMAD003 18MMAD004 18MMAD005 18MMAD006 18MMAD007 18MMAD008 20MMRC001 20MMRC002 20MMRC003 20MMRC004 20MMRC005 20MMRC006 20MMRC007 20MMRC008 20MMRC009 20MMRC010 20MMRC011 20MMRC012 21MMRC001 21MMRC002 21MMRC003 21MMRC004 21MMRC005 21MMRC006 21MMRC007 21MMRC008 21MMRC009 21MMRC010 21MMRC011 21MMRC012 21MMRC013 21MMRC014 21MMRC015 22AMC003 Hole Type DD DD DD DD DD DD DD DD RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC Depth (m) 100.5 101.8 100 120 100 108.5 110 110 160 200 180 80 100 160 190 150 190 180 200 198 150 150 150 150 150 150 150 150 150 150 170 150 150 246 246 142 WEST COAST SILVER LIMITED Company Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Artemis Alien Easting (m) 482199 482660 482341 482455 481899 481797 482143 482455 485795 485864 485901 486294 481923 482202 482493 479730 480201 480309 479598 479696 481700 481700 481814 481815 481844 481862 481865 481974 482896 482503 482798 482714 482708 485900 486247 486940 ASX | WCE Northing (m) 7664902 7664953 7664910 7664875 7664873 7664866 7664923 7664875 7661175 7662229 7662571 7663241 7664887 7664896 7664857 7664005 7663224 7662943 7663830 7663810 7664782 7664780 7664795 7664797 7664740 7664843 7664843 7664875 7664803 7664821 7664827 7664885 7664847 7660490 7660700 7667808 RL (m) Dip (°) 79 74 81 78 76 75 87 79 90 85 84 83 75 79 81 95 98 100 116 105 76 76 76 76 77 76 76 78 76 91 75 79 79 92 91 78 -60.1 -60.1 -60.2 -59.2 -70.0 -60.3 -80.0 -80.0 -60.8 -58.7 -59.9 -60.6 -59.5 -90.0 -80.7 -69.4 -60.0 -64.0 -60.6 -64.3 -58.8 -87.8 -89.1 -59.4 -59.9 -87.6 -59.1 -59.2 -60.0 -60.0 -60.0 -59.3 -59.3 -59.3 -58.6 -60.2 Azimuth (°) 4.1 5.2 5.8 4.5 0.0 0.8 0.0 0.0 114.9 89.3 90.4 85.1 6.5 0.0 196.0 339.0 323.0 360.0 323.2 360.0 356.6 268.9 23.9 1.8 1.2 203.1 29.7 17.1 1.3 350.0 0.0 5.2 3.5 2.8 2.0 90.4 Page 10 ASX:WCE ANNOUNCEMENT 5th August 2025 Hole ID 22AMC004 22AMC005 22AMC006 22AMC007 22AMC008 22AMC009 22AMC010 22AMC011 22AMC012 86MMP1 86MMP2 86MMP3 87CP1 87CP2 87MMP16 87MMP18 87MMP19 87MMP20 87MMP21 87MMP22 87MMP4 87MMP5 87MMP6 87MMP7 87MMP8 89CP3 89CP4 89CP5 89CP6 89MMNP23 89MMNP27 89MMNP27A 89MMNP28 89MMNP29 89MMNPD34 89MMNPD35 89MMNPD35A 89MMSP2 89MMSP3 89MMSP4 89MMSP5 Hole Type RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RAB RAB RAB RAB RAB RCD RC RC RAB RAB RAB RAB Depth (m) 160 160 160 170 80 80 80 88 80 96 84 102 90 99 96 97 47 133 76 153 86 51 79 65 90 48 48 66 57 29 2 18 27 24 156.2 6 205 18 50 17 19 WEST COAST SILVER LIMITED Company Alien Alien Alien Alien Alien Alien Alien Alien Alien Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Agip Easting (m) 487642 487565 487502 487412 487119 487082 487042 487019 486958 487551 486395 486056 481310 481476 487061 487045 487024 487092 487016 487110 487354 487413 487396 487427 487234 482753 482086 482180 482030 486344 487142 487151 487156 487155 487100 487015 487020 490672 490221 490198 489277 ASX | WCE Northing (m) 7666557 7666570 7666559 7666563 7668080 7668081 7668080 7668081 7668069 7666541 7667526 7667837 7666220 7666242 7667843 7667743 7667750 7667832 7667700 7667825 7667356 7667520 7667556 7667614 7667768 7670367 7668591 7668669 7668622 7668119 7667905 7667905 7667906 7667913 7667828 7667754 7667752 7671002 7671294 7671319 7671432 RL (m) Dip (°) 94 95 94 98 76 76 76 76 76 93 83 81 71 71 81 79 78 82 80 84 88 82 83 86 82 88 65 66 62 77 84 85 85 84 83 79 79 83 90 87 97 -60.5 -60.2 -59.7 -60.9 -59.4 -58.8 -60.6 -60.1 -59.8 -90.0 -90.0 -90.0 -59.0 -60.0 -58.4 -60.1 -60.5 -59.5 -59.0 -59.3 -59.4 -59.2 -59.3 -58.4 -60.5 -60.0 -59.0 -60.0 -55.0 -90.0 -59.9 -57.5 -59.1 -59.5 -59.2 -90.0 -90.0 -90.0 -60.0 -90.0 -90.0 Azimuth (°) 92.1 91.7 85.4 93.7 91.2 94.2 89.4 92.2 88.9 0.0 0.0 0.0 325.0 324.3 289.0 287.4 288.6 293.1 290.5 290.3 86.5 152.0 154.1 55.5 50.0 99.0 99.0 270.0 270.0 0.0 72.0 240.0 240.0 270.0 270.0 0.0 0.0 0.0 270.0 0.0 0.0 Page 11 ASX:WCE ANNOUNCEMENT 5th August 2025 Hole ID AG01 AG02 AG03 AG04 AG05 AG06 AG07 AG08 AG09 AG10 AG11 AG12 AG13 AG14 AG15 AG16 AG17 AG18 AG19 AG20 AG21 AG22 AG23 AG24 AG25 AG26 AG27 AG28 AG29 AG30 AG31 AG32 AG33 AG34 AG35 AG36 AG37 AG38 AG39 AG40 AG41 Hole Type RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC Depth (m) 75 88 60 41 60 60 51 64 73 65 66 46 80 64 60 60 50 50 50 64 46 40 41 52 20 20 22 108 136 192 113 160 250 150 106 150 153 160 36 48 72 WEST COAST SILVER LIMITED Company ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG Easting (m) 486432 485582 486452 486500 486915 486884 486904 486699 486846 487347 487227 487245 487230 486835 486860 486884 486854 486840 486835 486834 486840 486820 486665 486898 486942 486912 486838 487051 487076 487098 487055 487075 487132 486925 487023 487047 487023 487047 486881 486919 486942 ASX | WCE Northing (m) 7664803 7664758 7664802 7664885 7667418 7667326 7667318 7667506 7667229 7668591 7668748 7668748 7668832 7666750 7666750 7666750 7667050 7667000 7666848 7666950 7666903 7666979 7667545 7667409 7667569 7667588 7667570 7667837 7667837 7667838 7667807 7667803 7667793 7667758 7667702 7667701 7667649 7667651 7667588 7667588 7667588 RL (m) Dip (°) 103 93 103 100 82 85 87 83 85 72 72 72 72 91 91 91 87 87 89 88 89 87 84 82 80 80 80 80 81 83 80 80 83 79 80 79 79 79 80 80 80 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -55.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 Azimuth (°) 270.0 270.0 270.0 270.0 90.0 90.0 90.0 270.0 90.0 270.0 270.0 270.0 270.0 90.0 90.0 90.0 90.0 90.0 90.0 90.0 90.0 90.0 180.0 90.0 90.0 90.0 90.0 270.0 270.0 270.0 270.0 270.0 270.0 90.0 270.0 270.0 270.0 270.0 270.0 270.0 270.0 Page 12 ASX:WCE ANNOUNCEMENT 5th August 2025 Hole ID AG42 AG43 AG44 AG45 AG46 AG47 AG48 AG49 AG50 AG51 AG52 AG53 AG54 AG55 AG57 AG58 AG59 AG60 AMEHRC005 AMEHRC010 AMEHRC011 AMEHRC012 AMEHRC013 AMEHRC014 AMJRRC001 AMJRRC002 AMJRRC003 DH01 DH02 DH03 DH04 DH05 DH06 DH07 DH08 DH09 DH10 DH11 DH12 DH13 DH14 Hole Type RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC Depth (m) 108 130 96 66 84 48 108 146 48 61 220 96 204 199 218 101 80 64 126 96 108 118 150 168 78 72 70 150 150 75 200 196 200 150 150 250 150 150 75 150 151 WEST COAST SILVER LIMITED Company ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG Alien Alien Alien Alien Alien Alien Alien Alien Alien East Coast East Coast East Coast East Coast East Coast East Coast East Coast East Coast East Coast East Coast East Coast East Coast East Coast East Coast Easting (m) 486948 486940 486894 486765 487186 486877 486901 486708 487350 487355 487132 486991 487112 487102 487113 486973 487002 487028 487068 486905 486911 486918 487101 487150 487518 487483 487450 487150 487200 487250 487250 487325 487450 487250 487325 487400 487125 487175 487225 487042 487078 ASX | WCE Northing (m) 7667530 7667476 7667440 7667438 7667789 7667388 7667390 7667520 7667568 7667598 7667795 7667610 7667859 7667875 7667875 7667598 7668037 7668086 7667849 7667475 7667530 7667575 7668351 7668350 7667549 7667525 7667501 7668785 7668785 7668785 7668500 7668500 7668500 7668350 7668350 7668350 7668150 7668150 7668150 7668083 7668047 RL (m) Dip (°) 80 81 81 82 82 82 83 82 82 82 83 79 85 86 86 79 77 76 82 81 80 80 75 74 91 86 83 73 72 72 73 73 72 74 74 74 76 76 76 76 77 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -50.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -59.8 -58.6 -59.9 -59.4 -59.9 -69.6 -55.0 -54.9 -54.7 -60.0 -60.0 -60.0 -70.0 -70.0 -70.0 -70.0 -70.0 -70.0 -60.0 -60.0 -60.0 -60.0 -60.0 Azimuth (°) 270.0 270.0 270.0 270.0 0.0 270.0 270.0 270.0 180.0 180.0 270.0 270.0 270.0 270.0 270.0 270.0 90.0 90.0 301.4 275.9 268.1 267.4 92.3 92.1 60.2 57.3 57.8 90.0 90.0 90.0 90.0 90.0 270.0 90.0 90.0 90.0 90.0 90.0 90.0 135.0 135.0 Page 13 ASX:WCE ANNOUNCEMENT 5th August 2025 DH15 DH16 DH17 EC013 EC030 EC052 EC102 EC103 EC104 EC110 EC113 EC117 EHRC01 EHRC02 EHRC03 EHRC04 EHRC05 EHRC06 EHRC07 EHRC08 EHRC09 EHRC10 EHRC11 EHRC12 Hole Type RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC RC Depth (m) 75 150 180 40 119.5 99.5 38 50 70 20 45 30 70 74 73 70 70 70 50 80 48 84 70 70 GSRC001 RC 150 GSRC002 RC 132 GSRC003 UYD 01 UYD 02 UYD 03 UYD 04 UYD 05 UYD 06 UYD 07 UYD 08 UYD 09 UYD 10 UYD 11 UYD 12 RC DD DD DD RCD RCD RCD RC RCD RCD RCD RCD RCD 292 70.1 49 56.9 105.5 75.8 79 40 120.9 105.7 147.6 222.7 189.6 Hole ID WEST COAST SILVER LIMITED Company East Coast East Coast East Coast ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG ECM - LEG Global Strategic Global Strategic Global Strategic Easting (m) 487114 487100 487072 487151 487071 486820 487122 487112 487102 487011 487030 487021 487588 487621 487651 487617 487585 487553 486095 486046 486042 485983 486042 485996 Northing (m) 7668011 7668785 7667989 7667870 7667849 7667888 7667885 7667885 7667885 7667836 7667841 7667835 7666536 7666546 7666546 7666641 7666642 7666640 7667758 7667823 7667823 7667822 7667717 7667621 RL (m) Dip (°) 77 72 78 88 82 78 86 86 86 79 79 79 93 93 94 95 96 98 82 82 82 83 83 87 -60.0 -60.0 -60.0 -90.0 -60.0 -90.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 Azimuth (°) 135.0 270.0 255.0 0.0 296.0 0.0 90.0 90.0 90.0 270.0 270.0 270.0 270.0 270.0 270.0 270.0 270.0 270.0 24.0 114.0 24.0 24.0 114.0 114.0 487290 7670218 68 -60.0 300.0 487310 7670400 68 -70.0 150.0 487450 485837 485629 485545 485348 485346 485165 485166 485175 484977 484954 484715 484756 7670100 7664295 7664311 7664306 7664337 7664441 7664670 7664444 7664334 7664551 7664350 7664288 7664451 72 142 114 101 87 96 114 87 85 111 109 83 104 -60.0 -90.0 -90.0 -60.0 -60.0 -60.0 -90.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 270.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ASX | WCE Page 14 ASX:WCE ANNOUNCEMENT 5th August 2025 Hole ID UYD 13 UYD 14 UYD 15 UYD 16 UYD 17 UYD 18 UYD 19 UYD 20 UYD 21 UYD 22 UYD 23 UYD 24 UYD 25 UYD 26 UYD 27 UYD 28 Hole Type RCD DD RCD DD DD RC RC RC RCD RCD RCD RCD RCD RCD RCD DD Depth (m) 105.6 25 252 40 51.2 160 50 77 126.8 156.6 139.4 159.9 171.8 178.1 138.8 72.8 Company Easting (m) 484769 485193 484828 485346 485167 486246 486303 486139 486125 486115 486285 486315 486386 486389 486373 486496 Northing (m) 7664593 7664908 7664351 7664440 7664444 7663552 7663629 7663625 7663746 7663840 7663717 7663843 7663993 7664100 7664274 7664472 RL (m) Dip (°) 103 102 102 96 87 107 115 89 91 93 126 135 152 161 159 159 -60.0 -90.0 -60.0 -90.0 -90.0 -90.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 -60.0 Azimuth (°) 0.0 0.0 0.0 0.0 0.0 0.0 90.0 90.0 90.0 90.0 90.0 90.0 90.0 90.0 90.0 90.0 Notes Appendix 1: RAB = rotary air blast drilling; RC = reverse circulation drilling; RCD = reverse circulation and diamond drilling; DD = diamond drilling; Alien = Alien Metals Ltd; Agip = Agip Australia Pty Ltd; ECM-LEG = East Coast Minerals NL and Legend Mining Ltd.; Global Strategic = Global Strategic Metals NL. Regional surface drill holes are reported here outside of the area defined between 7,667,850N and 7,667,970N and between 486,920E and 487,100E. Holes within this area were reported in WCE ASX Release dated 16 July 2025. All coordinates are in GDA 1994 MGA Zone 50. WEST COAST SILVER LIMITED ASX | WCE Page 15 ASX:WCE ANNOUNCEMENT 5th August 2025 Appendix 2 – Significant Historical Regional Drill Intercepts Hole ID From (m) To (m) Ag (g/t) Au (g/t) Cu (ppm) Pb (ppm) Zn (ppm) 22AMC011 4 8 60 10 240 50 87MMP20 113 114 25 -0.005 87MMP22 146 147 27 -0.005 493 800 276 283 1310 211 87MMP8 64 66 30 0.008 89MMNP23 28 29 28 2100 8000 330 AG33 190 194 223 AG42 102 104 32 AG43 118 119 250 AG54 107 108 37 AG54 108 109 46 AG57 186 187 47 AMEHRC012 108 110 1550 20 40 -50 AMEHRC014 98 100 25 30 60 -50 EC030 101 102 50 0.141 497 345 259 EC030 102 103 50 0.008 1079 407 429 EC030 103 104 50 0.016 1464 269 250 EC030 104 105 50 0.017 705 740 173 EC030 105 106 50 0.031 252 1418 107 EC030 106 107 50 0.019 99 913 152 EC030 107 108 50 0.012 224 3875 191 EC030 108 109 50 0.002 37 788 90 EC030 109 110 50 0.036 45 261 100 EC030 110 111 50 0.058 118 451 507 EC030 111 112 50 0.002 89 56 55 EC030 112 113 50 0.001 42 107 50 EC030 113 114 50 0.008 45 145 124 EC030 114 115 50 0.006 122 125 253 EC030 116 117 50 -0.001 30 145 40 EC030 118 119 50 0.02 81 331 89 EC052 48 50 74 -0.001 430 4 48 EC052 58 60 31 0.001 3000 58 140 EC052 63.2 65 26 0.001 2500 48 125 EC052 65 67 32 0.001 3300 38 82 EC052 67 69 28 0.001 2100 19 64 EC052 69 71 34 -0.001 2700 16 66 EC052 71 73 27.5 0.001 1900 18 60 EC052 84.5 88 36 0.004 1300 1300 160 Note: Only intersections with Ag>25g/t reported. Refer to Appendix 1 for drill hole collar details. WEST COAST SILVER LIMITED ASX | WCE Page 16 ASX:WCE ANNOUNCEMENT 5th August 2025 Appendix 3 – Anomalous Historical Regional Soil Sample Assay Results Sample ID East (m) North (m) Ag (g/t) Au (g/t) Cu (ppm) Pb (ppm) Zn (ppm) Ag (g/t method) 24EW10-054 478010 7663404 0.14 0.002 70.1 5.4 95.9 ME-MS61L 24EW10-177 479200 7663700 0.2 0.029 493 10.7 78.1 ME-MS61L 24EW10-263 480000 7665000 0.171 0.005 133.5 8.75 60.9 ME-MS61L 24EW10-268 480000 7664500 0.112 0.005 137 7.11 78 ME-MS61L 24EW10-270 480000 7664300 0.122 0.045 140 5.71 60 ME-MS61L 24EW10-271 479994 7664197 0.145 0.004 287 6.69 53.5 ME-MS61L 24EW10-272 480004 7664107 0.156 0.004 293 4.37 43.3 ME-MS61L 24EW10-303 480400 7664500 0.125 0.002 218 7.7 51.4 ME-MS61L 24EW10-304 480396 7664406 0.151 0.002 229 8.72 57.6 ME-MS61L