Company announcements

Harmony regrets to announce a loss-of-life incident at Mponeng Mine

October 27, 2025

---

Johannesburg, Monday, 27 October 2025. Harmony Gold Mining Company Limited (“Harmony” and/or “the Company”) is deeply saddened to report a loss of life incident at its Mponeng mine, near Carletonville, on the morning of Sunday, 26 October 2025.

The incident involved an electrician who conducted routine maintenance work. Harmony extends its deepest condolences to the family, friends, and colleagues of the deceased and is providing support during this difficult time.

Safety remains Harmony’s foremost priority and a core value underpinning all operations. A full investigation into the circumstances of the incident has been initiated, led by Harmony management in collaboration with the Department of Mineral and Petroleum Resources (DMPR). All relevant authorities and stakeholders have been informed.

Harmony remains committed to its proactive safety strategy and continues to reinforce a culture of care across all operations.

Ends.

For more details contact:

Chipo Morapedi-Mrara
Head of Communications
+27 (0)60 571 0797

Jared Coetzer
Head of Investor Relations
+27 (0)82 746 4120

Mashego Mashego
Executive Director
+27 (0)82 767 1072

27 October 2025

Sponsor:
J.P. Morgan Equities South Africa Proprietary Limited.