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, Friday, 24 March 2023. Harmony Gold Mining Company Limited (“Harmony”) regrets to advise that an employee tragically lost his life on Thursday, 23 March 2023 at its Kusasalethu Mine, near Carletonville, in Gauteng province. An investigation is currently underway to determine the cause of this loss of life. “This is a tragic loss for all of us. As a company, we ensure every effort is made to secure the safety of all our employees. We continue to integrate the Harmony risk management framework and embed a safety culture to ensure a safe working environment at all times. Our thoughts and prayers are with the family, friends and colleagues of the deceased during this sad time,” said Peter Steenkamp, chief executive officer for Harmony. The company has reached out to the relevant authorities, including the family of the deceased and the affected employees to provide assistance wherever possible. All work in the affected section has been temporarily ceased, pending a comprehensive internal investigation. 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) 24 March 2023 Sponsor: J.P. Morgan Equities South Africa Proprietary Limited.