Announcement PDF ASX:WCE ANNOUNCEMENT 30th May 2025 Drilling commences at Elizabeth Hill Highlights • Diamond drilling commenced at West Coast Silver’s high-grade Elizabeth Hill Silver Project in Western Australia. • Mobilisation completed and first drill hole underway as part of a ~1,500 metre inaugural drill program. • Program designed to test extensions of known high-grade mineralisation and better understand structural controls. • pXRF analyses and detailed geological logging to be conducted at the Company’s site office in Karratha prior to transporting to a Perth laboratory for full chemical analysis. • Geological data expected to provide forward drill planning in real time, ensuring maximum efficiency and targeting accuracy. West Coast Silver Limited (ASX:WCE) (‘West Coast Silver’ or the ‘Company’) is pleased to advise that diamond drilling has now commenced at its high-grade Elizabeth Hill Silver Project in Western Australia. Mobilisation to site has now been completed, and drilling of the first hole is underway as part of the Company’s ~1,500 metre inaugural diamond drilling campaign. This highly anticipated program will target extensions to the known high-grade silver mineralisation at Elizabeth Hill and further investigate structural controls identified through recent geological modelling and fieldwork. Executive Director Bruce Garlick said: “We’re extremely excited to have drilling now underway at Elizabeth Hill. It’s a significant milestone for West Coast Silver as we test the additional potential of this historic, high-grade silver project with modern techniques for the first time. We’ll soon be assessing fresh drill core – and that’s when the real geological work begins. Our team is ready to interpret and adapt in real-time, and we’re looking forward to sharing updates with shareholders as results come to hand.” 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 30th May 2025 Figure 1 - West Core drill rig on site at Elizabeth Hill All drill core will be transported from site and logged at the Company’s offices and core yard in Karratha, where preliminary pXRF analysis will be undertaken. The geological team will also carry out detailed structural interpretation, which will fast-track updates to the drill program to ensure optimal targeting and program efficiency as drilling progresses. The Company looks forward to updating shareholders on drilling, results, and insights as the program progresses. WEST COAST SILVER LIMITED ASX | WCE Page 2 ASX:WCE ANNOUNCEMENT 30th May 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.8.‗.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 repetitive 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 3 ASX:WCE ANNOUNCEMENT 30th May 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 4