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, Tuesday, 28 June 2022. 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 Mr Modise Motloba as a non-independent non-executive director and member of the technical-, investment-, nomination- as well as the social and ethics committees of the company with effect from 27 June 2022. Mr Motloba has served as a member of the board since 2004. Mr Motloba’s resignation is in continuation of the board’s transition plan to ensure that its composition and functioning is in line with global best practices. “I would like to express my gratitude and that of the board to Modise for his contribution to the growth, transformation and sustainability of Harmony. Modise, as deputy chairman, has played a pivotal role in strengthening Harmony’s leadership to create stakeholder value. We wish Modise success in his future endeavours,” said Dr Patrice Motsepe, chairman of the board. Ends. For more details contact: Jared Coetzer Head of Investor Relations +27 (0)82 746 4120 Johannesburg, South Africa 28 June 2022 Sponsor: J.P. Morgan Equities South Africa Proprietary Limited