Announcement PDF ASX:WCE ANNOUNCEMENT 9 September 2025 APPOINTMENT OF NON-EXECUTIVE DIRECTOR West Coast Silver Limited (ASX: WCE) (“West Coast Silver” or the “Company”) is pleased to announce the appointment of Mr Matt Birney as Non-Executive Director of the Company effective immediately. Mr Birney is the founder and Managing Director of Perth and Sydney based financial news and investor relations firm Bulls N’ Bears and in that role he has worked alongside hundreds of ASX listed mining and exploration company Managing Directors over the past 13 years. He is also the former Member for Kalgoorlie, Leader of the Opposition and Shadow State Treasurer for Western Australia and the former Chairman of two ASX-listed companies operating in the oil and gas and carbon credit sectors. Mr Birney has founded and successfully operated multiple private businesses over 3 decades, the largest of which were Goldfields Auto Spares, an automotive, industrial and mining supplies business operating out of Kalgoorlie and Bulls N’ Bears, which he continues to have operational control of in Perth, Western Australia. Mr Bruce Garlick, Executive Chairman, commented: “West Coast Silver is very fortunate to have Matt Birney join us as a Non-Executive Director. Matt brings with him significant experience in and around ASX listed companies, particularly in the exploration sector, and he has a wealth of contacts across both business and Government circles in Western Australia and beyond.” Commenting on his appointment Mr Birney said, “With the silver price breaching US$40 for the first time in 14 years 1, silver is now well and truly back on the radar and companies like West Coast Silver, with high grade, high quality assets will inevitably be in the vanguard of those well placed to take advantage of this new silver pricing environment. I was very encouraged by a recent site visit to Elizabeth Hill and I am delighted to be able to play a role in West Coast Silver’s future success.” Mr Birney will stand for election at the Company’s 2025 Annual General Meeting. 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 1 Sourced from S&P Capital IQ Price Chart – Silver on 1 September 2025. 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 September 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) 2. • Previous mining operation ceased in 2000: because of low silver prices (US$5) 3 • 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 1 – Location of Project Combined Tenements Through the consolidation of the surrounding land packages into a single contiguous 180km2 package significant exploration and growth potential exists both near mine and regionally. The land package holds a significant portion of the Munni Munni fault system which is considered prospective for Elizabeth Hill look-a-like silver deposits. 2 WAMEX Annual Report,1 April 2014 to 31 March 2015, Elizabeth Hill Silver Project, Global Strategic Metals NL, p16 3 www.kitco.com/charts/silver WEST COAST SILVER LIMITED ASX | WCE Page 2