Announcement PDF 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 9 June 2026 Silver Mineralisation Extended 70m Beyond Maiden Resource and Remains Open • RC drilling has significantly increased the scale of silver mineralisation up to 70m north of the Elizabeth Hill April 2026 maiden mineral resource estimate (MRE), confirming the mineralised system is open at depth and along strike, with multiple holes ending in mineralisation in the Munni Munni Fault Zone (MMFZ). • Best intersections received to date include: o 60m @ 25 g/t Ag from surface (including 19m @ 31 g/t Ag) (26WCRC004) o 26m @ 31g/t Ag from 4m (26WCRC002, finished in mineralisation) o 9m @ 33g/t Ag from 6m and 5m @ 31g/t Ag from 26m (26WCRC003) o 2m @ 96g/t Ag from 91m (26WCRC012) o 1m @ 157g/t Ag from surface (26WCRC011) • The majority of new mineralisation lies outside the April 2026 MRE, increasing the scale of the mineralised system and providing a clear basis for MRE growth (Figure 1). • Assay results received for the first 17 of 32 RC holes drilled at Elizabeth Hill North in May 2026 (2,710m RC program). Assays for the remaining 15 holes are pending, including hole 26WCRC023 which intersected 72m of altered MMFZ, with further results expected over coming months. • Lead mineralisation up to 1.66% Pb intersected in 26WCRC010, consistent with the spatial association between lead and silver at Elizabeth Hill and indicating potential for higher-grade silver further along the MMFZ. • 72m of altered MMFZ in hole 26WCRC023 (assays pending), representing the widest fault zone intersection drilled to date at Elizabeth Hill North • Diamond drilling is underway to test below RC holes that terminated in mineralisation, with economic studies of near-surface mineralisation progressing in parallel to support evaluation of a development pathway. West Coast Silver Limited (ASX: WCE) (‘West Coast Silver’ or the ‘Company’) is pleased to report it has received encouraging significant assay results for the first 17 of 32 reverse circulation (RC) drill holes completed in May 2026 at the Elizabeth Hill Project (WCE 70%, Alien Metals 30%), located near Karratha in the Pilbara region of Western Australia. The 32-hole, 2,710m program targeted silver mineralisation north of the April 2026 maiden Mineral Resource Estimate (MRE), with results to date confirming significant extensions beyond the current resource envelope. Highlights ASX:WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 2 Full cross-section descriptions and figures are provided in Appendix 1. Significant assay results are summarized in Table 1. Figure 1. Oblique pit-shell cutaway view of April 2026 Elizabeth Hill 3D optimised open pit, containing resource block model. Oblique section shows mineralisation in drill holes 26WCRC001 to 26WCRC004 (red circle) outside the block model. Yellow blocks are Inferred Resources. Red blocks are Indicated Resources. Refer drill Sections (Figures 6-10) and Long Section (Figure 3) for accurate view of mineralization in and out of Pit Shell and MRE. Executive Director Bruce Garlick commented: "The Elizabeth Hill silver system is growing in scale. This RC campaign has delivered broad, near-surface silver zones extending up to 60m, with mineralisation confirmed up to 70m north of our maiden April 2026 MRE. The extension of mineralisation beyond the current resource boundary, both to the north and at depth, gives us a clear and compelling basis for MRE growth. The discovery of silver in granite is particularly exciting: it opens up the prospectivity of the system well beyond a single rock type, and the alteration patterns we're seeing give the team a powerful tool for targeting higher-grade zones. With diamond drilling now underway and 15 holes still to report - including 26WCRC023 detecting our potentially mineralized widest fault zone to date, having 72m of altered Munni Munni fault, the main mineralisation controlling structure. The exploration program continues to build a compelling case for resource growth. Elizabeth Hill remains wide open to the north and at depth, and we look forward to keeping shareholders updated as results come in." ASX:WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 3 RC DRILL RESULTS Elizabeth Hill North Assay results from the first 17 holes (26WCRC001-26WCRC017) confirm broad zones of silver mineralisation both within and north of the April 2026 MRE block model, with silver hosted in intensely silica-altered granite and quartz-carbonate veins within the Munni Munni Fault Zone (MMFZ). The strongest results are from holes 26WCRC002 and 26WCRC004, drilled on cross-section A-A' immediately north of the current MRE (Figures1, 2, 3 and 6). • Hole 26WCRC004 returned 60m @ 25 g/t Ag from surface (including 19m @ 31 g/t Ag), and • Hole 26WCRC002 was almost entirely mineralised, returning 28m @ 29 g/t Ag from 2m (including 26m @ 31 g/t Ag), ending in mineralisation due to difficult ground conditions in the MMFZ. • Holes 26WCRC001 and 26WCRC003 on the same section also returned wide mineralised intervals, with 26WCRC003 returning 14m @ 25g/t Ag from 3m and 16m @ 21g/t Ag from 26m (refer Table 1). • Notably, the width and grade of mineralisation increased with depth across all four holes, indicating continuity and extension beyond the current MRE pit design (Figure 6). • Holes 26WCRC002 and 26WCRC003 terminated in mineralisation due to poor ground conditions within the MMFZ. Two diamond drill holes (DD 002, DD 003; Figure 6) are currently being drilled on this section to fully intersect the mineralised zone at depth. On cross-section B-B’, approximately 25m north (Figure 7): • Hole 26WCRC005 intersected three separate intervals of >10g/t Ag: 7m @ 15g/t Ag from surface (including 1m @ 35g/t Ag from surface), 6m @ 14g/t Ag from 18m, and 4m @ 16g/t Ag from 33m. • Holes 26WCRC006 to 26WCRC008 on this section returned only short silver intersections, however logging of 26WCRC023 (assays pending) indicates a 72m intersection of the altered MMFZ, supporting continuity of the mineralised system along strike. Two high-grade silver intersections were returned on cross-section C-C’ (Figure 8), 50m further north: • Hole 26WCRC011 returned 1m @ 157g/t Ag from surface, and • Hole 26WCRC012 returned 2m @ 96g/t Ag from 91m. Strongly toextremely silicifiedalterationingranitehasbeenloggedacrosssectionsB-B’,C-C’,D-D’andE-E’,interpreted to mark the continuation of the Elizabeth Hill alteration system within the MMFZ (Figures 7, 8, 9 and 10). Importantly, high grade lead assaying up to 1.66% Pb was intersected from 55m to 70m in drill hole 26WCRC010 (Figures 8, Appendix 3). Zones of high-grade lead typically flank high grade silver zones at the Elizabeth Hill deposit and may indicate the presence of silver mineralisation further to the north along the MMFZ. This is supported by shallow, scout aircore hole 25WCAC008 with 0.5m @ 61g/t Ag from 8m (refer WCE ASX Announcement dated 24 February 2026). Four RC drill holes (26WCRC029 - 032) have been completed to test this trend and assays for these drill holes are pending. ASX:WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 4 Table 1: Summary of significant silver intersections in RC drill holes 26WCRC001 – 26WCRC017 >10g/t Ag and >20g/t Ag within broader >10g/t Ag zones. Hole Id From Interval (m) Ag g/t (>10g/t) Gram xMetres (GM) From Interval (m) Ag g/t (>20g/t) GM 26WCRC001 2 1 37 37 26WCRC001 6 25 15 375 including 7 1 28 13 5 18 90 26WCRC001 36 21 19 399 including 10 1 23 23 49 1 30 30 26WCRC002* 2 28 29 812 including 4 26 31 806 26WCRC003 3 14 25 350 including 6 9 33 297 26WCRC003* 26 16 21 336 including 26 5 31 155 37 5 22 110 26WCRC004 0 60 25 1500 including 0 19 31 589 32 6 24 144 44 15 29 435 26WCRC005 0 7 15 105 including 0 1 35 35 26WCRC005 18 6 14 84 26WCRC005 33 4 16 64 26WCRC006 0 1 16 16 26WCRC006 6 1 12 12 26WCRC006 33 1 11 11 26WCRC007 11 1 13 13 26WCRC008 39 1 12 12 26WCRC009 16 1 11 11 26WCRC009 39 1 11 11 26WCRC011 0 2 87 174 including 0 1 157 157 26WCRC011 7 1 10 10 26WCRC011 76 1 11 11 26WCRC012 91 2 96 192 26WCRC013 6 1 10 10 26WCRC017 25 1 17 17 Note: Down hole intervals not true widths; 10g/t Ag cut off for significant intercepts; assay results are for holes 26WCRC001- 017; * hole ended in mineralisation due to ground conditions. ASX:WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 5 Figure 2. Location of 2026 RC drill holes at Elizabeth Hill North and significant drill assay results. Elizabeth Hill mineral system remains open northwards to Maitland prospect and to the Elizabeth Hill South prospect. Note: Call-outs (lines) direct to down hole intersection locations on inclined hole traces in plan view. Refer to sections in Figures 6 to 10) for intersection down hole widths and relative positions in section view. WEST COAST SILVER LIMITED ASX | WCE Page 6 Figure 3. Long section showing southern plunge of Elizabeth Hill silver mineralisation envelope and RC drill hole pierce points. April 2026 MRE block model superposed over grams per metres contours. Extension of mineralisation 70m northwards beyond MRE consistent with plunge of mineralisation. Additional diamond drilling (in progress) targeting gaps in mineralised plunge definition. ASX:WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 7 NEXT STEPS Following the maiden MRE release and encouraging RC drilling results, West Coast Silver will continue to advance Elizabeth Hill through: • Ongoing diamond and RC drilling to expand the scale of the Elizabeth Hill mineralised system through testing of depth extensions below holes that terminated in mineralisation, infill lower-density areas within the MRE to improve resource categorisation, and evaluation of along-strike and near-mine extensions, including Maitland and Elizabeth Hill South prospects • Detailed geological and structural review of all 2025-2026 drilling data, including interpretation of the change in strike and plunge of silver mineralisation, to plan and prioritise follow-up drilling at Elizabeth Hill North and South, and newly identified targets in the northwest of the project area. • Surface and downhole geophysical surveys for new target generation along the MMFZ and to support further extension and development of Elizabeth Hill during 2026, including surface IP, CSAMT, EM and downhole EM methods • Economic studies based on an upgraded and potentially larger-scale JORC MRE of near-surface mineralisation, to support evaluation of a project development pathway. • Regional exploration programs designed to unlock the broader scale potential of the Elizabeth Hill Project, including potential drill testing of the Elizabeth Hill South prospect and other priority targets along the Munni Munni Fault Zone (Refer Figure 4). ASX:WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 8 Figure 4. Elizabeth Hill regional exploration prospects plan view. West Coast Silver is advancing to test beyond Elizabeth Hill multiple exploration prospects and targets that remain under-explored, having indications of elevated Ag, Pb, Zn, Cu and Ni from surface geochemistry, sparse drilling and associated with geophysics defined fault structures. ASX: WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 9 About The Elizabeth Hill Project Elizabeth Hill is historically one of Australia’s highest grade silver projects, with a proven production history and significant untapped potential: • Demonstrated high-grade production: 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 , demonstrating the exceptional grade of the deposit. • Previous mining ceased in 2000 due to low silver prices (US$5)2 . At current silver prices, the economics of the project are materially different. • Low-cost processing potential: Historical silver recovery was achieved via gravity separation, a low-cost technique well-suited to the deposit's native silver mineralisation. • Resource growth potential: The deposit remains open at depth and along strike. Consolidation of the surrounding land package into a single contiguous 180km² holding provides additional opportunity to discover further Elizabeth Hill-style deposits. • Strategic location and infrastructure: The project is located in the world-class West Pilbara mining jurisdiction with a granted mining lease, and an MOU with Artemis Resources Ltd to evaluate the Radio Hill processing facility as a potential treatment option for Elizabeth Hill material. Through the consolidation of surrounding land packages, a significant portion of the Munni Munni Fault System and subparallel structures are now within WCE’s tenement holding, all considered prospective for Elizabeth Hill- style silver mineralisation. Figure 5. Elizabeth Hill Project Tenement Location 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 ASX:WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 10 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 inthis announcement 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 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 the announcement of the matters based on this 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 exploration program/project development pathway, 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. Appendix 1: Cross Sections Cross Section A – A’ with RC Drill Holes 26WCRC001 - 26WCRC004 RC drill holes 26WCRC001 to 26WCRC004 on cross section A – A’ intersected almost entirely granite with only a small lens of pyroxenite present in holes 26WCRC002 and 26WCRC004 (Figures 1, 2 and 6). All four holes contained silica alteration in the granite which is interpreted to delineate the Munni Munni Fault Zone (MMFZ). Drill hole 26WCRC002 intersected 4m of intense silica and quartz-carbonate veins from 13m down hole, while 26WCRC003 and 26WCRC004 encountered this zone of intense silica alteration and quartz-carbonate veins at the bottom of holes. This zone is interpreted to form the centre of the MMFZ. All four drill holes intersected wide intervals of >10g/t silver mineralisation both within and outside the current Mineral Resource Estimate (MRE) block model (Figure 1, 2 and 6, WCE ASX Announcement dated 22 April 2026). Greater than 10g/t silver intersections of 21m @ 19g/t Ag from 36m in drill hole 26WCRC001, 16m @ 21g/t Ag from 26m in drill hole 26WCRC003 and 6m @ 25g/t Ag from 32m and 15m @ 29g/t Ag from 44m in drill hole 26WCRC004, underneath the current MRE outline, indicate continuity of mineralisation at depth (Figures 1, 2 and Table 1). Drill hole 26WCRC002 was almost entirely mineralised with 28m @ 29g/t Ag from 2m, ending in mineralisation due to difficult ground conditions encountered during drilling. The entire drill hole 26WCRC004 was mineralised with 60m @ 25g/t Ag from surface (Figures 1, 2 and 6 and Table 1). Drill hole 26WCRC003 contained intersections of 14m @ 25g/t Ag from 3m and 16m @ 21g/t Ag from 26m. This hole ended in mineralisation in the centre of the MMFZ, stopping due to difficult ground conditions encountered during drilling. Drill hole 26WCRC001, which is interpreted to have been collared west of the centre of the MMFZ, intercepted intervals of silver mineralisation of 25m @ 15g/t Ag from 6m and 21m @ 19g/t Ag from 36m. ASX:WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 11 Notably, the width of silver mineralisation increases with depth in these drill holes. Drill holes 26WCRC002 and 26WCRC003 ended in mineralisation due to difficult ground conditions encountered during drilling and only the last 1m sample in 26WCRC004 was not mineralised. Two planned diamond drill holes (DD 002, DD 003; Figure 6) are currently being drilled on this section to fully intersect the mineralised zone and MMFZ. Figure 6. Cross section A-A’ showing RC holes 26WCRC001 - 26WCRC004. Note that mineralisation is open at depth below the pit optimisation and below the block model. ASX: WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 12 Cross Section B – B’ with RC Drill Holes 26WCRC005 - 26WCRC008 and 26WCRC023 RC drill holes 26WCRC005 to 26WCRC008 (Figures 1, 2 and 7) on cross section B – B’intersected a broad envelope of silicified granite within which lies a highly silicified subvertical zone with quartz carbonate veins, the latter is interpreted to represent the core of the broader MMFZ. Some lenses of ultramafic rock are located within the granite. Drill hole 26WCRC005 intersected 7m @ 15g/t Ag from surface, 6m @ 14g/t Ag from 18m and 4m @ 14g/t Ag from 33m. The other drill holes on this section contained only short silver intersections (B-B’, Figure 7, Table 1). Based on the logging of 26WCRC023, the hole contains a 72m down hole intersection of the altered MMFZ. Assay results are pending. Figure 7. Cross section B-B’ showing RC holes 26WCRC005 - 26WCRC008 and 26WCRC023 ASX: WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 13 Cross Section C – C’ with RC Drill Holes 26WCRC009 - 26WCRC012, 26WCRC022 and 26WCRC024 The RC holes (26WCRC009-012, 26WCRC022, 26WCRC024) on cross section C – C’ (Figures 1, 2 and 8) intersected a complex array of intensely silicified quartz-carbonate veins hosted within granite. A high-grade intersection of 2m at 96g/t Ag from 91m in 26WCRC012 is associated with the lower part of this vein networking within ultramafic rocks. In 26WCRC010, this networking is associated with elevated lead grading up to 1.66% Pb from 55m to 70m down hole. The same relationship exists in 26WCRC009 with lead up to 2.43% Pb within the interval from 40m to 54m down hole (Appendix 3). Anomalous silver exists around the upper margin of the higher-grade lead zone in 26WCRC009 (10.95 g/t Ag from 39-40m) and lower margin in 26WCRC010 (8.52g/t Ag from 69-70m) (Appendix 3). This provides a good example of the general spatial correlation between lead and silver. The other high grade silver intersection on this cross section is 1m at 157g/t Ag from surface in 26WCRC011. Assays are pending for 26WCRC022 and 024. It is interpreted from logging that 26WCRC022 was drilled obliquely down the MMFZ, as represented by a 117m zone of variably silicified granite and ultramafic rocks. RC hole 26WCRC024 was designed to test the western extent of the MMFZ and also for silver mineralisation interpreted to be hosted in granite to the west of the MMFZ (refer WCE ASX Announcement dated 4 February 2026). Based on the logging of 26WCRC024, it is interpreted this hole did not intersect the MMFZ. Figure 8. Cross section C-C’ showing RC holes 26WCRC009 - 26WCRC012, 26WCRC022 and 26WCRC024 ASX:WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 14 Cross Section D – D’ with RC Drill Holes 26WCRC013 - 26WCRC015 and 26WCRC021 Four RC drill holes (26WCRC013-015, 26WCRC 021) were drilled on cross section D – D’(Figures 1, 2 and 9). Assay results were received for three of the holes with low levels of silver mineralisation (10.4g/t Ag) intersected in 26WCRC013 from 6m to 7m in partially weathered granite. RC hole 26WCRC014 did not contain silver mineralisation, however from 46m to 57m it contained a zone of elevated lead mineralisation that graded up to 0.77% Pb (Appendix 3) within intensely silicified granite. This zone is interpreted to be the core of the MMFZ. Assay results for 26WCRC021 are pending. Figure 9. Cross section D-D’ showing RC holes 26WCRC013 - 26WCRC015 and 26WCRC021 ASX:WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 15 Cross Section E – E’ with RC Drill Holes 26WCRC016 - 26WCRC018 and 26WCRC028 Assay results have only been received for two (26RC016-017) of the four RC holes drilled on cross section E – E’ (Figures 1, 2 and 10). Low levels of silver mineralisation were intersected in 26WCRC017 (17.4g/t Ag from 25-26m) associated with millimetre scale carbonate veins in a 2m thick ultramafic lens. While 26WCRC016 did not contain silver mineralisation, the interval from 42m to 48m did contain elevated lead mineralisation up to 0.44% (Appendix 3). An empirical observation from reviewing the RC drilling and assay data is that spatially, lead generally seems to be located outside the zone containing higher silver grades but is still within the overall mineral system. Assay results are pending for 26WCRC018 and 26WCRC028. Based on the logging of 26WCRC018, there is a large section of silica and quartz carbonate veining from 54m to 71m down hole. This interval corresponds to a zone of intensely silicified granite, where rock textures have been destroyed by the silica alteration, containing up to 10% visible galena in the RC chips. It is interpreted this large section represents the core of the MMFZ, and an extension of the alteration associated with the Elizabeth Hill mineral system. Moving north from this section silver levels could increase again, as highlighted in aircore hole 25WCAC008, 50m to the north, containing 61 g/t Ag from 8-8.5m (refer WCE ASX Announcement dated 24 February 2026). Opportunity exists for a new silver pearl north of Elizabeth Hill. Figure 10. Cross section E-E’ showing RC holes 26WCRC016 - 26WCRC018 and 26WCRC028 ASX:WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 16 Appendix 2: RC Drill Hole Collar Details Hole Number Easting (m) Northing (m) RL (mASL) Azimuth (°) Dip (°) Drilled Depth(m) 26WCRC001 487015 7667963 86.4 270 -60 60 26WCRC002 487023 7667963 86.6 270 -60 30 26WCRC003 487034 7667963 86.7 270 -60 42 26WCRC004 487042 7667963 86.5 270 -60 60 26WCRC005 487025 7667986 85.3 270 -60 48 26WCRC006 487035 7667985 85.1 270 -60 66 26WCRC007 487046 7667986 85.4 270 -60 102 26WCRC008 487055 7667986 85.3 270 -60 138 26WCRC009 487024 7668006 84.6 270 -60 90 26WCRC010 487034 7668000 84.7 270 -60 102 26WCRC011 487043 7668000 84.8 270 -60 102 26WCRC012 487055 7668001 84.8 270 -60 126 26WCRC013 487014 7668025 84.5 270 -60 96 26WCRC014 487035 7668025 84.6 90 -60 78 26WCRC015 487055 7668025 84.6 270 -60 102 26WCRC016 487035 7668050 84.3 270 -60 78 26WCRC017 487015 7668050 84.3 270 -60 48 26WCRC018 487055 7668050 84.3 270 -60 108 26WCRC019 486990 7667940 85.2 90 -60 42 26WCRC020 487000 7667950 85.7 90 -60 60 26WCRC021 487075 7668025 85.3 270 -60 138 26WCRC022 487075 7668000 84.9 270 -60 150 26WCRC023 487075 7667985 85.4 270 -60 151 26WCRC024 486995 7668005 84.7 270 -60 78 26WCRC025 486955 7667935 84.6 90 -60 43 26WCRC026 487075 7668050 85.3 270 -60 18 26WCRC027 487074 7668050 85.3 270 -60 20 26WCRC028 487073 7668050 85.3 270 -60 138 26WCRC029 487035 7668075 84.2 270 -60 96 26WCRC030 487055 7668075 84.2 270 -60 150 26WCRC031 487035 7668100 83.9 270 -60 102 26WCRC032 487015 7668075 84.0 270 -60 48 Note: Grid coordinate system is GDA2020 Zone 50; 26WCRC001-013 collars are final pickup with a DGPS after drilling; 26WCRC014-032 are collars pegged using a DGPS before drilling ASX: WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 17 Appendix 3: RC Drilling Assay Results Hole Number From (m) To (m) Interval (m) Ag (g/t) Cu (ppm) Ni (ppm) Pb (ppm) Zn (ppm) 26WCRC001 0 1 1 NA NA NA NA NA 26WCRC001 1 2 1 NA NA NA NA NA 26WCRC001 2 3 1 36.5 135 145 142 146 26WCRC001 3 4 1 5.7 49 43 44 107 26WCRC001 4 5 1 0.7 22 13 12 78 26WCRC001 5 6 1 0.6 25 14 13 65 26WCRC001 6 7 1 15.4 55 53 99 59 26WCRC001 7 8 1 27.8 29 30 104 80 26WCRC001 8 9 1 16.7 73 30 628 124 26WCRC001 9 10 1 16.3 70 36 239 138 26WCRC001 10 11 1 15.0 66 38 253 161 26WCRC001 11 12 1 18.8 75 43 305 176 26WCRC001 12 13 1 19.6 75 51 223 200 26WCRC001 13 14 1 20.3 77 48 180 181 26WCRC001 14 15 1 13.8 97 93 365 327 26WCRC001 15 16 1 20.6 112 90 288 259 26WCRC001 16 17 1 17.0 88 71 224 221 26WCRC001 17 18 1 20.4 117 64 315 209 26WCRC001 18 19 1 13.0 87 52 204 154 26WCRC001 19 20 1 17.0 119 47 246 154 26WCRC001 20 21 1 17.8 265 171 485 480 26WCRC001 21 22 1 15.8 55 30 118 114 26WCRC001 22 23 1 11.5 55 50 74 168 26WCRC001 23 24 1 12.5 40 30 55 100 26WCRC001 24 25 1 12.8 65 78 81 161 26WCRC001 25 26 1 10.8 105 117 160 348 26WCRC001 26 27 1 12.6 43 37 83 106 26WCRC001 27 28 1 10.1 32 41 74 105 26WCRC001 28 29 1 7.6 41 29 50 85 26WCRC001 29 30 1 8.9 244 111 966 298 26WCRC001 30 31 1 13.6 89 30 3330 84 26WCRC001 31 32 1 9.1 36 15 148 38 26WCRC001 32 33 1 3.8 18 90 42 95 26WCRC001 33 34 1 8.3 51 95 317 118 26WCRC001 34 35 1 4.5 61 337 1225 331 26WCRC001 35 36 1 6.9 40 180 203 175 26WCRC001 36 37 1 11.3 55 93 159 111 26WCRC001 37 38 1 17.0 75 40 474 90 26WCRC001 38 39 1 11.0 30 31 151 46 26WCRC001 39 40 1 9.7 26 37 180 50 26WCRC001 40 41 1 23.1 41 60 387 54 26WCRC001 41 42 1 18.0 42 56 381 58 26WCRC001 42 43 1 15.7 33 28 38 43 ASX:WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 18 Hole Number From (m) To (m) Interval (m) Ag (g/t) Cu (ppm) Ni (ppm) Pb (ppm) Zn (ppm) 26WCRC001 43 44 1 14.5 32 27 35 62 26WCRC001 44 45 1 9.8 23 21 26 52 26WCRC001 45 46 1 13.5 29 18 72 45 26WCRC001 46 47 1 12.5 75 41 297 117 26WCRC001 47 48 1 10.4 45 19 178 58 26WCRC001 48 49 1 9.4 42 21 153 53 26WCRC001 49 50 1 25.5 47 19 156 52 26WCRC001 50 51 1 39.4 59 19 194 44 26WCRC001 51 52 1 33.6 128 31 435 65 26WCRC001 52 53 1 30.6 124 89 319 187 26WCRC001 53 54 1 30.7 167 139 324 289 26WCRC001 54 55 1 26.8 208 151 546 260 26WCRC001 55 56 1 20.5 131 84 383 150 26WCRC001 56 57 1 17.3 69 62 237 116 26WCRC001 57 58 1 6.7 30 18 109 54 26WCRC001 58 59 1 5.3 31 14 88 53 26WCRC001 59 60 1 1.8 40 16 52 53 26WCRC002 0 1 1 NA NA NA NA NA 26WCRC002 1 2 1 NA NA NA NA NA 26WCRC002 2 3 1 15.6 931 399 6430 1070 26WCRC002 3 4 1 18.7 587 428 8900 1485 26WCRC002 4 5 1 23.3 259 420 6870 1165 26WCRC002 5 6 1 19.6 104 347 2590 594 26WCRC002 6 7 1 20.9 319 272 6450 641 26WCRC002 7 8 1 20.7 1255 389 12650 2290 26WCRC002 8 9 1 22.7 269 221 5310 1920 26WCRC002 9 10 1 31.4 415 281 7430 2120 26WCRC002 10 11 1 32.8 346 348 8510 1990 26WCRC002 11 12 1 85.5 753 242 7420 1025 26WCRC002 12 13 1 56.1 395 197 4980 716 26WCRC002 13 14 1 75.9 200 133 4210 565 26WCRC002 14 15 1 34.8 573 326 6550 1460 26WCRC002 15 16 1 33.5 342 223 2690 990 26WCRC002 16 17 1 26.9 435 301 3610 1310 26WCRC002 17 18 1 19.1 220 175 1705 680 26WCRC002 18 19.2 1.2 25.7 178 132 1655 541 26WCRC002 19.2 20.4 1.2 21.7 285 238 2940 1005 26WCRC002 20.4 21.6 1.2 17.8 233 251 1035 883 26WCRC002 21.6 22.8 1.2 20.0 98 85 435 287 26WCRC002 22.8 24 1.2 22.2 75 38 430 141 26WCRC002 24 25 1 29.6 103 64 591 212 26WCRC002 25 26 1 24.1 111 68 596 243 26WCRC002 26 27 1 23.4 90 60 561 220 26WCRC002 27 28 1 25.9 89 56 519 212 26WCRC002 28 29 1 33.5 110 78 484 275 26WCRC002 29 30 1 28.2 99 64 465 220 ASX:WCE ANNOUNCEMENT 9 June 2026 WEST COAST SILVER LIMITED ASX | WCE Page 19 Hole Number From (m) To (m) Interval (m) Ag (g/t) Cu (ppm) Ni (ppm) Pb (ppm) Zn (ppm) 26WCRC003 0 1 1 NA NA NA NA NA 26WCRC003 1 2 1 NA NA NA NA NA 26WCRC003 2 3 1 8.9 1565 783 128 292 26WCRC003 3 4 1 10.0 336 815 57 271 26WCRC003 4 5 1 5.6 307 468 61 181 26WCRC003 5 6 1 7.3 540 513 37 192 26WCRC003 6 7 1 22.5 740 578 37 180 26WCRC003 7 8 1 19.1 536 584 34 180 26WCRC003 8 9 1 24.5 684 614 26 137 26WCRC003 9 10 1 60.5 1010 733 26 116 26WCRC003 10 11 1 23.7 1135 827 48 129 26WCRC003 11 12 1 15.4 310 642 97 178 26WCRC003 12 13 1 20.4 226 675 26 130 26WCRC003 13 14 1 64.2 225 653 16 112 26WCRC003 14 15 1 43.2 192 597 12 123 26WCRC003 15 16 1 17.6 251 732 643 549 26WCRC003 16 17 1 12.3 521 768 2480 1280 26WCRC003 17 18 1 6.9 420 765 1315 1130 26WCRC003 18 19 1 4.3 454 774 1395 1210 26WCRC003 19 20 1 4.5 421 848 1455 1395 26WCRC003 20 21 1 4.2 381 834 1545 1245 26WCRC003 21 22 1 3.3 388 799 1175 1250 26WCRC003 22 23 1 4.3 432 812 768 1270 26WCRC003 23 24 1 3.8 777 1065 2280 1490 26WCRC003 24 25 1 3.1 658 1425 1230 877 26WCRC003 25 26 1 10.0 218 488 628 406 26WCRC003 26 27 1 34.2 44 73 168 104 26WCRC003 27 28 1 20.8 92 111 239 171 26WCRC003 28 29 1 33.7 61 54 157 94 26WCRC003 29 30 1 32.7 62 33 260 52 26WCRC003 30 31 1 31.2 79 51 176 109 26WCRC003 31 32 1 14.