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, Monday, 19 December 2022. Harmony regrets to advise that an employee tragically lost his life on Thursday afternoon, 15 December 2022, following a seismic event, which caused a fall of ground incident at its Kusasalethu mine, near Carletonville, in Gauteng. “We are deeply saddened by this loss. We extend our condolences to the family, friends and colleagues of the deceased,” Peter Steenkamp, chief executive officer of Harmony said. The relevant authorities, as well as the family members of the deceased were informed of the incident and 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) 19 December 2022 Sponsor: J.P. Morgan Equities South Africa Proprietary Limited.