Resignation of a director and changes to the composition of Harmony's Board Composition 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”) RESIGNATION OF DIRECTOR AND CHANGES TO THE COMPOSITION OF HARMONY’S BOARD COMMITTEES Johannesburg, Friday, 18 December 2020. Harmony Gold Mining Company Limited (“Harmony” or the “Company”), hereby advises in compliance with paragraph 3.59 of the JSE Limited Listings Requirements, the resignation of Ms Grathel Motau as independent non-executive director and investment committee member of the company with effect from 18 December 2020. Ms Motau has decided to pursue other career opportunities. The chairman of Harmony, Dr Patrice Motsepe, said: “I would like to express my gratitude and that of the board to Grathel for her contribution to the Harmony board. We wish her success in her new endeavours.” ends. For more details contact: Marian van der Walt Senior Group Executive: Enterprise Risk and Investor Relations +27(0)82 888 1242 Max Manoeli Investor Relations and Social Media Manager +27(0)82 759 1775 (mobile) Johannesburg, South Africa 18 December 2020 Sponsor: J.P. Morgan Equities South Africa Proprietary Limited Date: 18-12-2020 05:02:00 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.