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. Friday, 17 December 2021. Harmony Gold Mining Company Limited (“Harmony” or the “Company”) in compliance with paragraph 3.59 of the Listings Requirements of the JSE Limited, herewith notifies shareholders of changes to the composition of Harmony’s board committees, following the retirement of two directors by way of rotation, as announced on the Stock Exchange News Service on 7 December 2021. Board committee changes are noted below: - Mr John Wetton as the new chairperson of the audit and risk committee, replacing Ms Fikile De Buck who has retired as a member of the board. - Ms Karabo Nondumo as a new member and chairperson of the social and ethics committee, replacing Dr Lushaba who has retired as a member of the board. - Ms Karabo Nondumo has resigned as a member of the technical committee and is a new member of the nomination committee. - Ms Given Sibiya as a new member of the social and ethics committee. Detailed résumés of Harmony’s board members are available at https://www.harmony.co.za/who-we-are/board Ends. For more details contact: Jared Coetzer Head: Investor Relations +27 (0) 82 746 4120 Johannesburg, South Africa 17 December 2021 Sponsor: J.P. Morgan Equities South Africa Proprietary Limited. Date: 17-12-2021 04:16:00 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.