HARMONY GOLD MINING COMPANY LIMITED - Harmony reports a loss-of-life incident at its Mponeng mine

Harmony reports a loss-of-life incident at its Mponeng mine

Harmony Gold Mining Company Limited
Registration number 1950/038232/06
Incorporated in the Republic of South Africa
ISIN: ZAE000015228
JSE share code: HAR
(“Harmony”)

Harmony reports a loss-of-life incident at its Mponeng mine

Johannesburg. Tuesday, 15 September 2026. Harmony Gold Mining Company Limited
(“Harmony” and/or “the Company”) deeply regrets to report a loss-of-life incident
at its Mponeng mine in the West Rand of Gauteng on Monday, 14 September 2026.

The incident occurred following a seismic event in an underground working area.
Work in the affected area has been suspended while a thorough investigation is
conducted to determine the circumstances and identify any additional measures
needed to strengthen safety controls and risk management practices.

Harmony extends its sincere condolences to the employee’s family, friends and
colleagues. Support is being provided to those affected.

The Department of Mineral and Petroleum Resources and other relevant stakeholders
have been notified.

Harmony remains committed to improving safety across its operations through
strengthening critical controls, training and development, learning from incidents
and working in partnership with all our stakeholders to eliminate loss of life
and create safer workplaces for all.

For more details contact:

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

15 September 2026

Sponsor:
J.P. Morgan Equities South Africa Proprietary Limited.
Date: 15/09/2026 07:30:00
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