Announcement PDF 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 30/9/2001. Name of entity Horizon Minerals Limited ABN 88 007 761 186 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 GRANT HAYWOOD Date of last notice 3 December 2024 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 Direct or indirect interest Nature of indirect interest (including registered holder) Indirect 1. Gabady Pty Ltd <Haywood Superannuation A/C> Note: Provide details of the circumstances giving rise to the relevant interest. 2. Mr Grant William Haywood <Haywood Family A/C> Date of change 30 June 2025 1. 2,353,300 Fully Paid Ordinary Shares 505,522 Listed Options Exp 30.06.2025 @ $0.097 No. of securities held prior to change 2. 472,300 22,300 Fully Paid Ordinary Shares Listed Options Exp 30.06.2025 @ $0.097 2,500,000 Class A Performance Rights 2,500,000 Class B Performance Rights 2,500,000 Class C Performance Rights Class Listed Options Exp 30.06.2025 @ $0.097 Number acquired - Number disposed 527,822 Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation - No. of securities held after change 1. 2,353,300 Fully Paid Ordinary Shares 2. 472,300 Fully Paid Ordinary Shares 2,500,000 Class A Performance Rights 2,500,000 Class B Performance Rights 2,500,000 Class C Performance Rights + See chapter 19 for defined terms. 01/07/2025 BT Appendix 3Y Page 1 Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back Expiration of options. Part 2 – Change of director’s interests in contracts N/A Part 3 – Closed period 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. Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required? n/a 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 + See chapter 19 for defined terms. 01/07/2025 BT Appendix 3Y Page 2