Orion Minerals Shareholder & Investor Webinar 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 Orion Minerals Shareholder & Investor Webinar Orion management to host a live investor webinar on Friday, 1 August 2025 Orion Minerals Limited (ASX/JSE: ORN) (Orion or Company) is pleased to advise that, following the release of the Company's June 2025 Quarterly Activities Report later this week, its senior management team will host a live Shareholder & Investor Webinar on Friday, 1 August 2025, commencing at 10.00am AWST / 12.00pm AEDT. The webinar will be led by Orion Minerals Chairman, Denis Waddell and the Company's Managing Director, Anthony (Tony) Lennox. A summary of Tony's experience is attached. The Orion team will provide an update on project development and exploration activities at the Company's flagship Prieska Copper Zinc Mine and the Okiep Copper Project, both located in the Northern Cape Province of South Africa, as well as corporate activities. The team will deliver a short presentation before opening the webinar to online questions. Shareholders and investors can log questions using the webinar platform. Alternatively, questions can be submitted prior to the start of the webinar to info@readcorporate.com.au. Investor Webinar Details Time: Friday, 1 August 2025 commencing at 10.00am AWST / 12.00pm AEST Registration details: Registration is essential, and it is recommended that investors register well before the webinar commences at the link below: https://www.bigmarker.com/read-corporate/orion-minerals-shareholder-investor-webinar A recording of the webinar will be made available via the Company's website and social channels following completion. For and on behalf of the Board. Denis Waddell Chairman 29 July 2025 ENQUIRIES Investors Media JSE Sponsor Tony Lennox – 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 Annexure 1: Highlights of Tony Lennox's Career Tony is a seasoned mining executive with extensive experience across underground and open-cut operations. Some key achievements in his career include the following: Non-Executive Director of Orion Minerals – since joining the Orion Board in December 2023, Tony has made significant contributions to the technical assessments of the Prieska and Okiep Definitive Feasibility Studies (DFS). His deep understanding of Orion's projects will be instrumental as we move towards execution and production. Executive Chairman of Minas de Revuboè – oversaw the large-scale reserve delineation for a major coal project in Mozambique whilst navigating complex international partnerships and ESG considerations. This experience aligns with Orion's commitment to sustainable resource development. CEO of Palabora Mining Company – successfully led the business through a strategic turnaround that extending mine life beyond 2035 and significantly improving profitability. His expertise in managing deep-level underground mining operations is directly relevant to our Prieska and Okiep projects. Global Mining Leadership – held senior roles with industry majors like Rio Tinto and BHP where he drove safety improvements, operational efficiency, and strategic growth being further experience that will benefit Orion's Prieska and Okiep projects. 2 Date: 29-07-2025 08:45:00 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.