Harmony Gold Mining Company Ltd Registration number: 1950/038232/06 Incorporated in the Republic of South Africa ISIN: ZAE000015228 JSE share code: HAR (“Harmony” or “Company”) DEALING IN SECURITIES BY PRESCRIBED OFFICERS Johannesburg, 24 March 2023. In compliance with paragraphs 3.63 to 3.74 of the JSE Listings Requirements, the following information is disclosed: Name of prescribed officer: J van Heerden Name of Company: Harmony Date of transaction 23 March 2023 Type of transaction: On-market sale of ordinary shares Class of securities: Ordinary shares Number of shares: 12 290 Volume Weighted Average price R74.29 per share: Highest sale price: R74.38 Lowest sale price: R74.25 Total value of shares: R912 972.90 Nature and extent of interest Direct beneficial Name of prescribed officer: M van der Walt Name of Company: Harmony Date of transaction 24 March 2023 Type of transaction: On-market sale of ordinary shares Class of securities: Ordinary shares Number of shares: 56 279 Volume Weighted Average price R72.0486 per share: Highest sale price: R72.54 Lowest sale price: R71.80 Total value of shares: R4 054 821 Nature and extent of interest Direct beneficial Prior clearance was obtained in respect of the above dealings by the prescribed officers. Ends. For more details, contact: Jared Coetzer Head: Investor Relations +27 (0) 82 746 4120 Johannesburg, South Africa 24 March 2023 Sponsor: J.P. Morgan Equities South Africa Proprietary Limited