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 TSHEPONG NORTH MINE Johannesburg, Wednesday, 8 March 2023. Harmony regrets to advise that an employee tragically lost his life on Tuesday morning, 7 March 2023, following a rigging related incident at its Tshepong North mine, near Welkom, in the Free State province. “This loss of life is a tragedy for Harmony and indeed the mining industry at large. Having celebrated the safe start to the calendar year, these incidents remind us that we cannot ever be complacent, and that workplace safety is non- negotiable,” Peter Steenkamp, chief executive officer for Harmony said. Harmony expresses its deepest sympathies and condolences to the employee’s family, friends and colleagues for this loss. The company has reached out to the relevant authorities, including the families of the deceased and the affected employees to provide assistance wherever possible. A comprehensive internal investigation is currently underway. For more details contact: Ofentse Mpitso Acting Head of Communications +27 (0)83 294 5667 (mobile) or Mashego Mashego Executive Director: Corporate affairs +27 (0) 82 767 1072 (mobile) 8 March 2023 Sponsor: J.P. Morgan Equities South Africa Proprietary Limited.