Announcement PDF Appendix 3Y Change of Director’s Interest Notice Rule 3.19A.2 Appendix 3Y Change of Director’s Interest Notice Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public. Introduced 30/09/01 Amended 01/01/11 Name of entity West Coast Silver Limited ABN 95 155 472 834 We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act. Name of Director Bruce Garlick Date of last notice 31 July 2025 Part 1 - Change of director’s relevant interests in securities In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part. Direct or indirect interest (a) Direct (b) to (d) Indirect Nature of indirect interest (including registered holder) (b) Bruce Garlick Superannuation Pty Ltd <Bruce Montgomery Garlick A/C> Note: Provide details of the circumstances giving rise to the relevant interest. (Bruce Garlick is a director and beneficiary) (c) Royal Corporate Services Pty Ltd (Bruce Garlick is a director and beneficiary) Date of change 24 September 2025 No. of securities held prior to change Interest (a) (b) (c) Shares – 1,428,370 – ^ PR= Performance rights Class (b) Fully paid ordinary shares Number acquired (b) 90,909 Number disposed Nil. Value/Consideration (b) $10,000 No. of securities held after change Interest (a) (b) (c) Note: If consideration is non-cash, provide details and estimated valuation Shares – 1,519,279 – ^ PR= Performance rights + See chapter 19 for defined terms. 01/01/2011 Options 1,700,000 – 7,000,000 PR^ – – 9,000,000 Options 1,700,000 – 7,000,000 PR^ – – 9,000,000 Appendix 3Y Page 1 Appendix 3Y Change of Director’s Interest Notice Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back Placement participation approved at the Company’s General Meeting held on 23 September 2025. Part 2 – Change of director’s interests in contracts Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part. Detail of contract Nature of interest Name of registered holder (if issued securities) Date of change No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed Interest acquired Interest disposed Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation Interest after change Part 3 – +Closed period Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required? No If so, was prior written clearance provided to allow the trade to proceed during this period? N/A If prior written clearance was provided, on what date was this provided? N/A Date: 24 September 2025 + See chapter 19 for defined terms. Appendix 3Y Page 2 01/01/2011