Announcement PDF ASX: HRZ ASX ANNOUNCEMENT 2 SEPTEMBER 2024 ACCOMPLISHED MINING LEADER STRENGTHENS BOARD Horizon Minerals Limited (ASX: HRZ) (“Horizon” or “the Company”) is pleased to announce changes to its Board of Directors. Experienced mining executive and director, Mr Warren Hallam, has agreed to join the Horizon Board of Directors as a Non-Executive Director effective 1 September 2024. Mr Hallam is currently a NonExecutive Director of St Barbara Limited and Poseidon Nickel Limited, and Non-Executive Chairman of Kingfisher Mining Limited. Mr Hallam has a built a strong track record over 35 years in operations, corporate and senior leadership roles across multiple commodities. This includes previous Managing Director roles at Metals X Limited, Millenium Metals Limited and Capricorn Metals Limited. Mr Hallam is a metallurgist who also holds a Masters in Mineral Economics from Curtin University. The Company also advises that Mr Jon Price has tendered his resignation as Non-Executive Director to focus on other business commitments, effective from 31 August 2024. Mr Price joined the Board of the Company in January 2016 as Managing Director and has guided Horizon through a transformational period of substantial resource growth prior to stepping down as Managing Director in June 2023. Commenting on the Board changes, Non-Executive Chairman Mr Ashok Parekh said: “We are delighted to welcome Warren to the board of Horizon as we transition the Company from an explorer to producer. We look forward to his guidance during this exciting growth phase. On behalf of the board and broader Horizon team, I would also like to acknowledge and thank Jon for his significant contribution to the Company over many years and wish him well in his future endeavours.” Authorised for release by the Board of Directors For further information, please contact: Grant Haywood Managing Director and CEO Tel: +61 8 9386 9534 grant.haywood@horizonminerals.com.au Level 2, 16 Ord Street West Perth WA 6005 Michael Vaughan Media Relations – Fivemark Partners Tel: +61 422 602 720 michael.vaughan@fivemark.com.au T: +61 8 9386 9534 F: +61 8 9389 1597 E: info@horizonminerals.com.au www.horizonminerals.com.au ACN 007 761 186 ABN 88 007 761 186