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 FINANCIAL DIRECTOR Johannesburg, 23 March 2023. In compliance with paragraphs 3.63 to 3.74 of the JSE Listings Requirements, the following information is disclosed: Name of financial director: BP Lekubo 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: 10 239 Volume Weighted Average price R70.00 per share: Highest sale price: R70.59 Lowest sale price: R69.68 Total value of shares: R716 732.30 Nature and extent of interest Direct beneficial Prior clearance was obtained in respect of the above dealings by the financial director. Ends. For more details, contact: Jared Coetzer Head: Investor Relations +27 (0) 82 746 4120 Johannesburg, South Africa 23 March 2023 Sponsor: J.P. Morgan Equities South Africa Proprietary Limited