Announcement PDF ASX:WCE ANNOUNCEMENT 29 August 2025 AMENDMENT TO ASX ANNOUNCEMENT West Coast Silver Limited (ASX: WCE) (“West Coast Silver” or the “Company”) advises that it has updated the announcement released on 22 August 2025 titled “High Grade Shallow Silver Intercepts at Elizabeth Hill”. The attached announcement has been amended to update the title to ensure compliance with the Listing Rules and to improve figure captions for legibility. No other changes have been made to the body of the announcement. This ASX announcement has been authorised for release by Bruce Garlick on behalf of 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 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 29th August 2025 Assays return high grade shallow silver intercepts at Elizabeth Hill Highlights • Assays from drill hole 25WCDD011 have identified several significant high-grade silver zones including: • 17 metres at 858g/t Ag from 5 metres including: • 2 metres at 6,349g/t Ag from 7 metres; • 10 metres at 850g/t Ag from 47 metres including: • 3 metres at 2,593g/t Ag from 50 metres; and • 13 metres at 1,615g/t Ag from 62 metres including: • 2 metres at 10,049g/t Ag from 63 metres. • Native silver has been identified in 25WCDD011. • 25WCDD011 has also intersected high grade gold including: • 1 metre at 11.1g/t Au from 51 metres. • Assays from drill hole 25WCDD012 have also returned significant high-grade silver intercepts including: • 6 metres at 317g/t Ag from 10 metres including: • 1m at 1,455g/t Ag from 13 metres; and • 14 metres at 162g/t Ag from 18 metres. • Drilling at Elizabeth Hill continues to identify mineralisation and these results will be used to outline a near surface resource. 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 29th August 2025 West Coast Silver Limited (ASX: WCE) (‘West Coast Silver’ or the ‘Company’) is pleased to advise it has received further outstanding silver intercepts from the inaugural diamond drill program (12 holes for 1,183m) at the high-grade Elizabeth Hill Silver Project in the Pilbara. Of the assay results for four drill holes (25WCDD003, 25WCDD004, 25WCDD011 and 25WCDD012), exceptionally shallow, high grade silver results were returned for 25WCDD011 and 25WCDD012 (Figure 3 and Figure 4). Both holes intersected significant silver mineralisation from near surface (Table 1), with particularly impressive results from hole 25WCDD011 which intersected: • • • 17 metres at 858g/t Ag from 5 metres including: o 2 metres at 6,349g/t Ag from 7 metres; 10 metres at 850g/t Ag from 47 metres including: o 3 metres at 2,593g/t Ag from 50 metres; and 13 metres at 1,615g/t Ag from 62 metres including o 2 metres at 10,049g/t Ag from 63 metres. Drill hole 25WCDD011, which was strategically drilled to test depth and mineralisation continuity, has also intersected significant high grade gold mineralisation (Table 2) including 1 metre at 11.1g/t Au. Along with significant silver and gold mineralisation, native silver has also been identified in 25WCDD011 (Figure 1 & Figure 2). This development has initiated investigations within the company into the viability of simplistic gravity separation process to recover free silver from Elizabeth Hill style mineralisation. Elizabeth Hill is located adjacent to a number of existing processing facilities including Radio Hill which is located ~25km to the north. Utilisation of these facilities will be factored into the companies assessment into the potential processing of Elizabeth Hill material. Figure 1 - 25WCDD011: 49.68-53.28m – visible native silver and silver sulphide minerals (yellow circle) in coarse crystalline calcite-quartz vein. The vein is hosted in fine- to medium grained pyroxenite. The silver minerals are between 1mm and 2mm in size and comprise about 1% of the 20cm calcite-quartz vein, commencing at 52m. WEST COAST SILVER LIMITED ASX | WCE Page 2 ASX:WCE ANNOUNCEMENT 29th August 2025 Cautionary Statement: In relation to disclosure of visual estimates of native silver and silver sulphide minerals, the Company cautions that visual methods of mineral identification and estimation of minerals abundance should not be considered as a proxy of substitute for laboratory analysis. The Ag concentrations as determined with the laboratory analysis are shown for the respective intervals on the core tray. Visual information also potentially provides no information regarding impurities or deleterious physical properties relevant to valuations. Figure 2 - 25WCDD011: 52.01-52.2m (SAMPLE 25WC04-015) – Silver-grey native silver and silver sulphide minerals 1mm to 2mm in size comprise about 1% of the fine-grained quartz and coarse grained calcite vein. Quartz comprises about 20% and calcite about 80% of the vein. Commenting on the results, Executive Chairman Bruce Garlick said: “We are extremely pleased with the delivery of more outstanding results from our maiden drill program at Elizabeth Hill. We have intersected more high-grade silver from surface and with grades up to 10,049g/t we are now very confident in the near-surface potential at Elizabeth Hill. What is even more encouraging is the intersection of high-grade gold up to 11.1g/t in hole 25CWDD011. We look forward to additional assay results that should be received in the coming weeks.” In addition to 25WCDD011, drill hole 25WCDD012 has also intersected high grade silver from near surface including: • 6 metres at 317g/t Ag from 10 metres including. o 1m at 1,455g/t Ag from 13 metres. WEST COAST SILVER LIMITED ASX | WCE Page 3 ASX:WCE ANNOUNCEMENT 29th August 2025 Hole ID Interval (m) 25WCDD011 17.00 Ag (g/t) 858 Including 2.00 6,349 7.00 25WCDD011 7.00 545 25.00 25WCDD011 1.00 29 42.00 Including 0.77 3,741 26.00 25WCDD011 10.00 850 47.00 including 3.00 2,593 50.00 25WCDD011 1.00 33 59.00 25WCDD011 13.00 1,615 62.00 Including 2.00 10,049 63.00 25WCDD011 8.00 101 80.00 25WCDD011 4.00 49 99.00 25WCDD012 1.00 28 4.00 25WCDD012 6.00 317 10.00 Including 1.00 1,455 13.00 25WCDD012 14.00 162 18.00 Including 2.00 882 26.00 From (m) 5.00 Table 1 – Significant Silver Intercept Table (25g/t Ag cut-off) Hole ID Interval (m) 25WCDD011 2.50 Au (g/t) 0.86 25WCDD011 1.00 11.10 51 25WCDD011 3.00 1.51 62 From (m) 26.5 Table 2 – Significant Gold Intercept Table (0.1g/t Au cut-off) WEST COAST SILVER LIMITED ASX | WCE Page 4 ASX:WCE ANNOUNCEMENT 29th August 2025 Figure 3 – Plan view of 2025 West Coast Silver Diamond core drilling and historical drilling WEST COAST SILVER LIMITED ASX | WCE Page 5 ASX:WCE ANNOUNCEMENT 29th August 2025 Figure 4 – Long section showing drill holes 25WCDD004, 25WCDD011 & 25WCDD012 and previously reported 25WCDD001 & 25WCDD002(looking ESE (refer to ASX announcement dated 16th July 2025). . Laboratory Testing Results have now been received for six diamond drill holes (25CWDD001, 002, 003, 004, 011 & 012) with no significant drill intercepts received for holes 25CWDD003 and 25WCDD004 (Figure 4). The collar locations and assay results for the four holes reported in this release are provided in Appendices A and B, respectively. The remaining results for the six outstanding drill holes are expected to be returned within 4–6 weeks. Result timeframes may vary pending laboratory analysis requirements for further testing. WEST COAST SILVER LIMITED ASX | WCE Page 6 ASX:WCE ANNOUNCEMENT 29th August 2025 Upcoming Works at Elizabeth Hill Figure 5 - Key upcoming works and catalysts WEST COAST SILVER LIMITED ASX | WCE Page 7 ASX:WCE ANNOUNCEMENT 29th 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 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 6 - 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 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 Page 8 ASX:WCE ANNOUNCEMENT 29th 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 reviewed by Mr Reddicliffe a Competent Person who is a Fellow of the Australasian Institute of Mining and Metallurgy and is a Director and shareholder of West Coast Silver. Mr Reddicliffe, BSc (Hons), MSc, has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration 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’. Thomas Reddicliffe consents to the inclusion in the report of the information 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 29th August 2025 Appendix A – Drill Collar Locations for West Coast Silver Hole ID Easting_m Northing_m RL Azi Dip EOH (m) 25WCDD001 25WCDD002 25WCDD003 25WCDD004 25WCDD005 25WCDD006 25WCDD007 25WCDD008 25WCDD009 25WCDD010 25WCDD011 25WCDD012 487008 487023 487033 487062 486972 487090 487004 487003 487037 487037 487025 487020 7667938 7667943 7667910 7667898 7667906 7667909 7667937 7667936 7667918 7667918 7667955 7667937 79 79 80 82 79 84 79 79 80 80 79 79 91 165 180 240 140 250 110 130 265 250 180 164 62 75 60 65 65 57 55 62 65 72 50 90 47.2 90.5 120.4 141.9 171.3 192.41 57.3 63.3 60.1 66.4 103 54 Coordinate system GDA94z50 Appendix B – Assay Results for West Coast Silver Hole_ID From 25WCDD003 0.00 1.00 0.39 0.005 0.061 2.2 48 25WCDD003 1.00 2.00 0.19 0.005 0.110 1.8 93 25WCDD003 2.00 3.00 0.24 0.005 0.077 1.1 85 25WCDD003 3.00 4.00 0.41 0.005 0.065 0.9 70 25WCDD003 4.00 5.00 1.48 0.010 0.129 1.4 74 25WCDD003 5.00 6.00 2.12 0.005 0.121 1.3 70 25WCDD003 6.00 7.00 2.37 0.005 0.074 1.3 64 25WCDD003 7.00 8.00 1.69 0.010 0.045 0.8 63 25WCDD003 8.00 9.00 1.67 0.005 0.052 1 62 25WCDD003 9.00 10.00 0.67 0.005 0.028 0.8 65 25WCDD003 10.00 11.00 0.86 0.005 0.033 0.8 60 25WCDD003 11.00 12.00 1.29 0.005 0.045 0.8 59 25WCDD003 12.00 13.00 1.92 0.005 0.075 0.7 63 25WCDD003 13.00 14.00 0.98 0.005 0.039 1 65 25WCDD003 14.00 15.00 0.26 0.005 0.001 8.6 103 25WCDD003 15.00 16.00 0.16 0.020 0.001 5.2 135 25WCDD003 16.00 17.00 0.15 0.005 0.006 3.1 94 25WCDD003 17.00 18.00 0.24 0.005 0.011 1.9 83 25WCDD003 18.00 19.00 1.23 0.010 0.060 0.8 52 25WCDD003 19.00 20.00 0.58 0.005 0.029 0.8 56 25WCDD003 20.00 21.00 1.06 0.010 0.054 0.7 62 WEST COAST SILVER LIMITED To Ag g/t ASX | WCE Au g/t Cu % Pb ppm Zn ppm Page 10 ASX:WCE ANNOUNCEMENT 29th August 2025 Hole_ID From To Ag g/t Au g/t Cu % Pb ppm Zn ppm 25WCDD003 21.00 22.00 2.18 0.070 0.125 1 72 25WCDD003 22.00 23.00 1.91 0.020 0.122 1 68 25WCDD003 23.00 24.00 1.10 0.005 0.064 0.7 64 25WCDD003 24.00 25.00 1.26 0.005 0.076 0.8 63 25WCDD003 25.00 26.00 7.83 0.010 0.407 1.2 69 25WCDD003 26.00 27.00 5.32 0.020 0.302 1.4 73 25WCDD003 27.00 28.00 1.94 0.030 0.091 0.9 61 25WCDD003 28.00 29.00 0.80 0.010 0.026 0.6 56 25WCDD003 29.00 30.00 0.65 0.005 0.023 0.8 56 25WCDD003 30.00 31.00 0.30 0.005 0.007 0.6 52 25WCDD003 31.00 32.00 0.36 0.005 0.010 0.6 51 25WCDD003 32.00 33.00 0.64 0.005 0.027 0.7 55 25WCDD003 33.00 34.00 0.33 0.010 0.011 1.4 59 25WCDD003 34.00 35.00 0.41 0.005 0.018 0.6 59 25WCDD003 35.00 36.00 2.12 0.010 0.131 0.7 62 25WCDD003 36.00 37.00 0.49 0.010 0.033 0.6 59 25WCDD003 37.00 38.00 0.85 0.010 0.054 0.7 59 25WCDD003 38.00 39.00 0.75 0.005 0.054 1.1 67 25WCDD003 39.00 40.00 0.63 0.010 0.047 2.5 69 25WCDD003 40.00 41.00 0.81 0.005 0.092 7.9 81 25WCDD003 41.00 42.00 0.42 0.005 0.039 3.9 77 25WCDD003 63.00 64.00 1.06 0.020 0.149 1.2 65 25WCDD003 64.00 65.00 0.72 0.010 0.087 1.3 65 25WCDD003 67.00 68.00 1.56 0.020 0.201 15.6 84 25WCDD003 68.00 69.00 1.03 0.010 0.156 12.7 84 25WCDD003 74.00 75.00 1.14 0.010 0.152 12.8 75 25WCDD003 75.00 76.00 0.37 0.005 0.056 4.1 76 25WCDD003 91.00 92.00 0.51 0.005 0.067 5.6 78 25WCDD003 92.00 93.00 0.42 0.005 0.045 4.6 70 25WCDD004 19.00 20.00 1.75 0.050 0.148 37.6 53 25WCDD004 24.00 25.00 0.38 0.010 0.038 1.4 59 25WCDD004 25.00 26.00 1.56 0.040 0.352 11.3 86 25WCDD004 26.00 27.00 1.17 0.010 0.205 1.9 78 25WCDD004 44.00 45.00 2.24 0.010 0.397 6 59 25WCDD004 45.00 46.00 0.85 0.005 0.144 3.1 51 25WCDD004 52.00 53.00 0.39 0.005 0.078 5.3 68 25WCDD004 57.00 58.00 0.72 0.005 0.170 5 66 25WCDD004 58.00 59.00 2.03 0.010 0.443 28.4 66 25WCDD004 74.00 75.00 3.31 0.010 0.811 16.3 91 25WCDD004 75.00 76.00 1.74 0.010 0.330 19.9 51 25WCDD004 76.00 77.00 2.95 0.010 0.482 9.6 59 25WCDD004 77.00 78.00 4.39 0.005 0.627 45.3 77 WEST COAST SILVER LIMITED ASX | WCE Page 11 ASX:WCE ANNOUNCEMENT 29th August 2025 Hole_ID From To Ag g/t Au g/t Cu % Pb ppm Zn ppm 25WCDD004 78.00 79.00 3.45 0.005 0.551 25.5 85 25WCDD004 79.00 80.00 2.20 0.005 0.277 27.1 81 25WCDD004 80.00 81.00 15.70 0.010 1.760 15.4 142 25WCDD004 81.00 82.00 3.64 0.005 0.352 8 88 25WCDD004 82.00 83.00 1.78 0.005 0.071 10.4 89 25WCDD004 87.00 88.00 1.80 0.005 0.044 3.2 80 25WCDD004 88.00 89.00 5.30 0.005 0.121 3.6 84 25WCDD004 90.00 91.00 17.25 0.005 0.496 5.4 101 25WCDD004 91.00 92.00 1.19 0.005 0.024 2 82 25WCDD004 92.00 93.00 1.06 0.005 0.017 1.5 79 25WCDD004 93.00 94.00 1.95 0.005 0.024 2.3 78 25WCDD004 94.00 95.00 1.56 0.005 0.019 2.6 82 25WCDD004 95.00 96.00 3.21 0.005 0.041 2.8 86 25WCDD004 96.00 97.00 3.00 0.005 0.029 5.1 83 25WCDD004 97.00 98.00 2.91 0.005 0.027 2.8 83 25WCDD004 98.00 99.00 2.28 0.005 0.019 3 84 25WCDD004 99.00 100.00 8.09 0.005 0.064 9.6 91 25WCDD004 100.00 101.00 5.58 0.005 0.048 10.4 81 25WCDD004 101.00 102.00 6.17 0.005 0.053 6400 84 25WCDD004 102.00 103.00 6.98 0.005 0.055 13.6 72 25WCDD004 103.00 104.00 7.89 0.005 0.067 6.4 73 25WCDD004 104.00 105.00 8.28 0.005 0.075 14.3 92 25WCDD004 105.00 106.00 6.84 0.005 0.060 19.3 90 25WCDD004 106.00 107.00 2.88 0.005 0.023 60.4 109 25WCDD004 107.00 108.00 4.36 0.005 0.037 6.3 84 25WCDD004 108.00 109.00 10.55 0.010 0.081 7.9 84 25WCDD004 109.00 110.00 8.80 0.005 0.070 19.8 93 25WCDD004 110.00 111.00 6.70 0.005 0.047 33.2 224 25WCDD004 111.00 112.00 2.03 0.005 0.019 16 148 25WCDD004 112.00 113.00 6.88 0.005 0.067 98.4 153 25WCDD004 113.00 114.00 4.95 0.005 0.041 37.5 88 25WCDD004 114.00 115.00 1.92 0.005 0.016 220 107 25WCDD004 115.00 116.00 5.73 0.005 0.046 37.2 179 25WCDD004 116.00 117.00 7.07 0.005 0.061 21.3 151 25WCDD004 117.00 118.00 4.45 0.010 0.041 42.7 319 25WCDD004 118.00 119.00 2.65 0.005 0.020 54.3 174 25WCDD004 119.00 120.00 2.82 0.005 0.036 49.2 228 25WCDD004 120.00 121.00 5.46 0.005 0.050 139 1050 25WCDD004 121.00 122.00 5.73 0.005 0.054 119.5 634 25WCDD004 122.00 123.00 2.84 0.005 0.034 371 367 25WCDD004 123.00 124.00 4.54 0.005 0.047 108 245 25WCDD004 124.00 125.00 2.45 0.005 0.026 105.5 230 WEST COAST SILVER LIMITED ASX | WCE Page 12 ASX:WCE ANNOUNCEMENT 29th August 2025 Hole_ID From To Ag g/t Au g/t Cu % Pb ppm Zn ppm 25WCDD004 125.00 126.00 4.89 0.005 0.040 246 635 25WCDD004 126.00 127.00 7.21 0.010 0.035 5830 1480 25WCDD004 127.00 128.00 2.96 0.005 0.034 208 437 25WCDD004 128.00 129.00 3.11 0.005 0.015 737 393 25WCDD004 129.00 130.00 3.91 0.010 0.006 520 142 25WCDD004 130.00 133.00 5.14 0.005 0.003 283 92 25WCDD004 133.00 134.00 11.55 0.010 0.002 70.9 57 25WCDD004 134.00 135.00 7.04 0.005 0.001 20 31 25WCDD004 135.00 136.00 2.70 0.010 0.001 21.9 26 25WCDD004 136.00 137.00 2.79 0.010 0.001 24.6 32 25WCDD004 137.00 138.00 0.41 0.010 0.001 38.6 19 25WCDD004 138.00 139.00 0.11 0.005 0.001 39.7 24 25WCDD004 139.00 140.00 0.12 0.010 0.000 41.8 23 25WCDD004 140.00 141.00 0.18 0.010 0.001 42.4 22 25WCDD004 141.00 141.90 0.08 0.010 0.000 56.1 15 25WCDD011 0.00 1.00 15.40 0.005 0.060 77.4 200 25WCDD011 1.00 2.00 4.87 0.005 0.078 56.8 163 25WCDD011 2.00 3.00 5.18 0.005 0.083 87.4 224 25WCDD011 3.00 4.00 4.60 0.005 0.016 160.5 257 25WCDD011 4.00 5.00 7.46 0.010 0.057 397 564 25WCDD011 5.00 6.00 28.10 0.010 0.070 308 320 25WCDD011 6.00 7.00 34.50 0.010 0.056 140.5 332 25WCDD011 7.00 8.00 11,878.00 0.440 0.437 290 695 25WCDD011 8.00 9.00 910.00 0.050 0.230 69.2 587 25WCDD011 9.00 10.00 69.20 0.010 0.242 1040 830 25WCDD011 10.00 11.00 90.00 0.020 0.093 3450 1005 25WCDD011 11.00 12.00 218.00 0.020 0.106 6140 1445 25WCDD011 12.00 13.00 92.50 0.060 0.149 2330 1595 25WCDD011 13.00 13.50 73.10 0.060 0.307 6800 1815 25WCDD011 13.50 14.00 190.00 0.070 0.298 7550 2010 25WCDD011 14.00 15.00 226.00 0.090 0.143 4450 2280 25WCDD011 15.00 16.00 100.00 0.040 0.129 3310 1395 25WCDD011 16.00 17.00 78.90 0.010 0.066 1730 875 25WCDD011 17.00 18.00 149.00 0.010 0.051 1130 393 25WCDD011 18.00 19.00 181.00 0.010 0.087 2290 437 25WCDD011 19.00 20.00 125.00 0.010 0.106 488 241 25WCDD011 20.00 21.00 105.00 0.010 0.055 574 113 25WCDD011 21.00 22.00 164.00 0.020 0.043 1120 276 25WCDD011 22.00 23.00 11.60 0.020 0.114 1265 843 25WCDD011 23.00 24.00 6.64 0.030 0.066 1015 1000 25WCDD011 24.00 25.00 12.05 0.020 0.043 453 844 25WCDD011 25.00 26.00 97.70 0.010 0.060 531 788 WEST COAST SILVER LIMITED ASX | WCE Page 13 ASX:WCE ANNOUNCEMENT 29th August 2025 Hole_ID From To Ag g/t Au g/t Cu % Pb ppm Zn ppm 25WCDD011 26.00 26.50 928.00 0.020 0.089 876 1115 25WCDD011 26.50 26.77 8,950.00 1.900 0.217 1275 1575 25WCDD011 26.77 28.00 461.00 0.160 0.074 1445 1325 25WCDD011 28.00 29.00 96.40 0.100 0.085 5370 1105 25WCDD011 29.00 31.00 64.20 0.020 0.038 1725 696 25WCDD011 31.00 32.00 47.80 0.010 0.128 800 389 25WCDD011 32.00 33.00 15.40 0.005 0.050 70.3 148 25WCDD011 33.00 34.00 11.50 0.005 0.046 111 179 25WCDD011 34.00 35.00 14.75 0.005 0.068 80.7 124 25WCDD011 35.00 36.00 12.70 0.005 0.044 73.4 151 25WCDD011 36.00 37.00 14.05 0.005 0.073 103.5 286 25WCDD011 37.00 38.00 21.70 0.005 0.044 56.6 102 25WCDD011 38.00 39.00 10.55 0.005 0.049 100.5 208 25WCDD011 39.00 40.00 11.45 0.005 0.059 97.2 132 25WCDD011 40.00 41.00 11.00 0.005 0.055 34.4 295 25WCDD011 41.00 42.00 4.43 0.005 0.023 125 258 25WCDD011 42.00 43.00 28.80 0.005 0.033 2420 655 25WCDD011 43.00 44.00 3.19 0.010 0.047 139.5 324 25WCDD011 44.00 45.00 4.04 0.010 0.062 325 532 25WCDD011 45.00 46.00 12.55 0.010 0.031 96.7 342 25WCDD011 46.00 47.00 4.37 0.010 0.054 99.7 352 25WCDD011 47.00 48.00 375.00 0.100 0.284 541 738 25WCDD011 48.00 49.00 14.80 0.010 0.061 75.8 341 25WCDD011 49.00 50.00 109.00 0.020 0.033 58.6 164 25WCDD011 50.00 51.00 2,670.00 0.080 0.053 123.5 198 25WCDD011 51.00 52.00 2,770.00 11.100 0.055 5270 509 25WCDD011 52.00 53.00 2,340.00 0.070 0.043 818 262 25WCDD011 53.00 54.00 20.50 0.010 0.040 87.4 159 25WCDD011 54.00 55.00 135.00 0.010 0.572 254 430 25WCDD011 55.00 56.00 35.10 0.070 0.095 107.5 310 25WCDD011 56.00 57.00 33.80 0.010 0.123 110.5 236 25WCDD011 57.00 58.00 5.79 0.005 0.030 18.3 78 25WCDD011 58.00 59.00 21.70 0.005 0.054 59.2 146 25WCDD011 59.00 60.00 32.60 0.005 0.053 128 183 25WCDD011 60.00 61.00 21.00 0.005 0.030 18.4 91 25WCDD011 61.00 62.00 9.39 0.010 0.092 94.7 297 25WCDD011 62.00 63.00 81.80 0.340 0.043 632 344 25WCDD011 63.00 63.60 2,500.00 5.510 0.236 3340 4340 25WCDD011 63.60 64.04 19,442.50 1.590 0.973 10000* 4680 25WCDD011 64.04 65.00 10,461.00 0.180 0.791 10000* 7540 25WCDD011 65.00 65.55 289.00 0.020 0.412 7260 4330 25WCDD011 65.55 66.38 186.00 0.050 0.199 2210 3980 WEST COAST SILVER LIMITED ASX | WCE Page 14 ASX:WCE ANNOUNCEMENT 29th August 2025 Hole_ID From To Ag g/t Au g/t Cu % Pb ppm Zn ppm 25WCDD011 66.38 67.00 318.00 0.050 0.030 1570 954 25WCDD011 67.00 68.00 127.00 0.010 0.027 453 386 25WCDD011 68.00 69.00 11.90 0.005 0.016 177.5 326 25WCDD011 69.00 70.00 6.25 0.005 0.018 230 728 25WCDD011 70.00 71.00 57.60 0.005 0.163 55.4 119 25WCDD011 71.00 72.10 27.90 0.005 0.073 31.6 101 25WCDD011 74.10 75.00 81.50 0.010 0.310 136 686 25WCDD011 75.00 76.00 11.40 0.005 0.048 90.2 669 25WCDD011 76.00 77.00 12.55 0.010 0.033 28.6 118 25WCDD011 77.00 78.00 7.89 0.005 0.017 38.7 68 25WCDD011 78.00 79.00 13.90 0.005 0.031 63.4 205 25WCDD011 79.00 80.00 11.00 0.005 0.027 65.4 128 25WCDD011 80.00 81.00 54.80 0.005 0.092 245 484 25WCDD011 81.00 82.00 6.34 0.010 0.064 313 710 25WCDD011 82.00 83.00 247.00 0.010 0.221 922 2320 25WCDD011 83.00 84.00 69.30 0.010 0.136 1255 3140 25WCDD011 84.00 85.00 76.20 0.010 0.103 333 2890 25WCDD011 85.00 86.00 199.00 0.090 0.980 5190 4260 25WCDD011 86.00 87.00 40.50 0.010 0.075 245 2060 25WCDD011 87.00 88.00 115.00 0.010 0.228 76.3 681 25WCDD011 88.00 88.70 21.40 0.005 0.060 139 528 25WCDD011 92.90 94.00 11.75 0.010 0.056 295 427 25WCDD011 94.00 95.00 4.12 0.090 0.026 56.1 306 25WCDD011 95.00 96.00 22.10 0.005 0.038 159.5 181 25WCDD011 96.00 97.00 14.60 0.005 0.047 102 284 25WCDD011 97.00 98.00 23.50 0.010 0.070 94 342 25WCDD011 98.00 99.00 20.90 0.010 0.024 40 202 25WCDD011 99.00 100.00 70.70 0.010 0.029 56.7 161 25WCDD011 100.00 101.00 66.00 0.020 0.031 72 1230 25WCDD011 101.00 102.00 14.45 0.005 0.032 51.8 190 25WCDD011 102.00 103.00 45.80 0.005 0.135 107.5 383 25WCDD012 0.00 1.00 9.67 0.010 0.360 125 248 25WCDD012 1.00 2.00 24.90 0.010 0.549 114.5 258 25WCDD012 2.00 3.00 3.33 0.005 0.253 22.1 435 25WCDD012 3.00 4.00 17.20 0.005 0.104 18.6 258 25WCDD012 4.00 5.00 28.40 0.005 0.151 158 408 25WCDD012 5.00 6.00 12.80 0.005 0.399 325 877 25WCDD012 6.00 7.00 7.08 0.005 0.295 3000 1005 25WCDD012 7.00 8.00 4.42 0.005 0.281 2560 1250 25WCDD012 8.00 9.00 5.12 0.005 0.181 3000 1365 25WCDD012 9.00 10.00 3.45 0.005 0.141 2800 1050 25WCDD012 10.00 11.00 48.80 0.020 0.188 4830 917 WEST COAST SILVER LIMITED ASX | WCE Page 15 ASX:WCE ANNOUNCEMENT 29th August 2025 Hole_ID From To Ag g/t Au g/t Cu % Pb ppm Zn ppm 25WCDD012 11.00 12.00 14.85 0.010 0.254 4440 1215 25WCDD012 12.00 13.00 10.10 0.005 0.233 2580 1470 25WCDD012 13.00 14.00 1,455.00 0.410 0.271 6790 2060 25WCDD012 14.00 15.00 334.00 0.220 0.187 10000* 2120 25WCDD012 15.00 16.00 39.00 0.040 0.167 5100 1610 25WCDD012 16.00 17.00 17.90 0.020 0.309 3420 1870 25WCDD012 17.00 18.00 8.30 0.030 0.301 3240 1715 25WCDD012 18.00 19.00 32.00 0.030 0.261 4550 1780 25WCDD012 19.00 20.00 9.46 0.010 0.069 1405 1045 25WCDD012 20.00 21.00 56.70 0.030 0.044 1665 896 25WCDD012 21.00 22.00 26.90 0.020 0.043 1295 1095 25WCDD012 22.00 23.00 14.40 0.010 0.040 1555 1025 25WCDD012 23.00 24.00 7.34 0.005 0.056 1565 1115 25WCDD012 24.00 25.00 52.50 0.290 0.066 1765 1060 25WCDD012 25.00 26.00 82.40 0.020 0.051 231 721 25WCDD012 26.00 27.00 886.00 0.005 0.162 1190 1365 25WCDD012 27.00 28.00 877.00 0.010 0.022 4590 8890 25WCDD012 28.00 29.00 73.80 0.005 0.082 331 881 25WCDD012 29.00 29.50 25.30 0.005 0.085 79.3 315 25WCDD012 29.50 30.00 104.00 0.010 0.581 220 301 25WCDD012 30.00 31.00 10.65 0.005 0.061 77.7 191 25WCDD012 31.00 31.50 17.45 0.005 0.063 82.1 428 25WCDD012 31.50 32.00 120.00 0.010 0.419 58.3 346 25WCDD012 32.00 33.00 13.90 0.005 0.066 445 312 25WCDD012 33.00 34.00 4.89 0.005 0.010 175 72 25WCDD012 34.00 35.00 1.20 0.005 0.002 30.6 10 25WCDD012 35.00 36.00 207.00 0.010 0.029 2780 279 25WCDD012 36.00 37.00 9.68 0.005 0.037 84.2 145 25WCDD012 37.00 38.00 1.43 0.010 0.018 168 134 25WCDD012 38.00 39.00 0.42 0.005 0.003 113.5 131 25WCDD012 39.00 40.00 2.06 0.005 0.011 117 272 25WCDD012 40.00 41.00 2.73 0.005 0.015 146 412 25WCDD012 41.00 42.00 0.71 0.005 0.010 148.5 691 25WCDD012 42.00 43.00 2.08 0.005 0.037 146.5 216 25WCDD012 43.00 44.00 0.62 0.005 0.008 63.7 105 25WCDD012 44.00 45.00 0.44 0.005 0.016 36.4 27 25WCDD012 45.00 46.00 0.53 0.005 0.017 70.3 88 25WCDD012 46.00 47.00 0.97 0.005 0.024 63.2 178 25WCDD012 47.00 48.00 0.18 0.005 0.003 20.3 47 25WCDD012 48.00 49.00 0.12 0.005 0.001 17.4 49 25WCDD012 49.00 50.00 0.16 0.005 0.003 27.8 106 25WCDD012 50.00 51.00 0.46 0.005 0.007 60.7 185 WEST COAST SILVER LIMITED ASX | WCE Page 16 ASX:WCE ANNOUNCEMENT 29th August 2025 Hole_ID From To Ag g/t Au g/t Cu % Pb ppm Zn ppm 25WCDD012 51.00 52.00 0.19 0.005 0.003 43 101 25WCDD012 52.00 53.00 0.12 0.005 0.001 30.2 57 25WCDD012 53.00 54.00 0.45 0.005 0.001 * above upper detection limit of 10,000g/t for the analytical method for Pb 55.9 30 WEST COAST SILVER LIMITED ASX | WCE Page 17 Appendix D JORC Code, 2012 – Table 1 - Inaugural Diamond Drill Program, Elizabeth Hill Project Section 1 Sampling Techniques and Data (Criteria in this section apply to all succeeding sections.) Criteria Sampling techniques JORC Code explanation • Nature and quality of sampling (eg cut channels, random chips, or specific speciali