Review of Orion Board Composition Orion Minerals Limited Incorporated in the Commonwealth of Australia Australian Company Number 098 939 274 ASX share code: ORN JSE share code: ORN ISIN: AU000000ORN1 Review of Orion Board Composition During the past several months, Orion Minerals Limited (ASX/JSE: ORN) (Orion or the Company) has undertaken a review of the Board’s increasing responsibilities as the Company transitions to a development stage at its copper and copper zinc mines in the Northern Cape of South Africa. The time demands and requirements of the Board and its committees is anticipated to intensify significantly in line with the Company’s rapidly growing and transitioning business. The Board composition review has also taken into consideration Tom Borman’s wish to free more time to focus on his other commitments and business interests. As Tom was due for re-election at the upcoming Annual General Meeting, Tom has decided not to stand for re-election and will step down as a director with effect from 10 October 2023. The Orion Board members are very thankful to Tom for his contribution both corporately and financially to Orion, over the past four and a half years. We wish Tom the very best for the future. Orion anticipates completing the Board composition review and completing the process of making new appointments of suitable candidates during the December 2023 Quarter. For and on behalf of the Board. Denis Waddell Chairman 10 October 2023 ENQUIRIES Investors Media JSE Sponsor Errol Smart – Managing Director & CEO Nicholas Read Monique Martinez Denis Waddell – Chairman Read Corporate, Australia Merchantec Capital T: +61 (0) 3 8080 7170 T: +61 (0) 419 929 046 T: +27 (0) 11 325 6363 E: info@orionminerals.com.au E: nicholas@readcorporate.com.au E: monique.martinez@merchantec.com Date: 10-10-2023 08:52:00 Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE'). The JSE does not, whether expressly, tacitly or implicitly, represent, warrant or in any way guarantee the truth, accuracy or completeness of the information published on SENS. The JSE, their officers, employees and agents accept no liability for (or in respect of) any direct, indirect, incidental or consequential loss or damage of any kind or nature, howsoever arising, from the use of SENS or the use of, or reliance on, information disseminated through SENS.