Harmony Gold Mining Company Limited Registration number 1950/038232/06 Incorporated in the Republic of South Africa ISIN: ZAE000015228 JSE share code: HAR (“Harmony”) LOSS-OF-LIFE INCIDENT AT HARMONY’S KUSASALETHU MINE Johannesburg, Wednesday, 6 September 2023. Harmony Gold Mining Company Limited (“Harmony”) regrets to announce that two employees tragically lost their lives at its Kusasalethu mine, following a fall of ground incident caused by a seismic event on Tuesday, 5 September 2023, in Carletonville, near Gauteng. “We are deeply saddened by the loss of our colleagues. Harmony continues its focus on embedding its risk management practice to create a more engaged and proactive safety culture. The inclusion and involvement of all Harmony stakeholders in all aspects of safety demonstrate a unified commitment to prevent accidents through our ongoing humanistic transformation safety journey.” said Peter Steenkamp, chief executive officer of Harmony. Our prayers are with the deceased's families, friends and colleagues during this time of tragedy. The family members, colleagues and the relevant authorities have been informed. The work area has since been temporarily closed pending an internal investigation. A safety shift has been declared in remembrance of our departed colleagues for the 6th of September 2023, to reinforce safety messages and procedures. The safety of our employees remain our priority, and we endeavour to ensure that all safety protocols are adhered to at all times. Ends. For more details contact: Chipo Morapedi-Mrara Head of Communications and Branding +27 (0)60 571 0797 (mobile) or Dr Mashego Mashego Executive Director: Corporate affairs +27 (0) 82 767 1072 (mobile) 6 September 2023 Sponsor: J.P. Morgan Equities South Africa Proprietary Limited.