Changes to the composition of Harmony's board committees Harmony Gold Mining Company Limited Registration number 1950/038232/06 Incorporated in the Republic of South Africa ISIN: ZAE000015228 JSE share code: HAR (“Harmony” and/or “the Company”) CHANGES TO THE COMPOSITION OF HARMONY’S BOARD COMMITTEES Johannesburg. Thursday, 18 August 2022. In compliance with paragraph 3.59 of the Listings Requirements of the JSE Limited, Harmony herewith notifies shareholders of changes to the composition of its board and board committees following the appointment of two new independent non- executive directors (Mr Bongani Nqwababa and Mr Martin Prinsloo) on 18 May 2022 and the resignation of one director (Mr Modise Motloba) on 27 June 2022. The board and committee changes are noted below: - Mr Bongani Nqwababa as the chairman and member of the investment committee. Mr Nqwababa will also serve as a member of the remuneration committee; - Mr Martin Prinsloo as a member of the technical and investment committees; and - Ms Karabo Nondumo as the newly elected deputy chairman of the board. Ends. For more details contact: Jared Coetzer Head: Investor Relations +27 (0) 82 746 4120 Johannesburg, South Africa 18 August 2022 Sponsor: J.P. Morgan Equities South Africa Proprietary Limited. Date: 18-08-2022 03:42:00 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.