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 EXECUTIVE DIRECTOR AND PRERSCRIBED OFFICER Johannesburg, 2 June 2023. In compliance with paragraphs 3.63 to 3.74 of the JSE Listings Requirements, the following information is disclosed: Name of executive director: HE Mashego Company: Harmony Nature of interest: Direct beneficial Date of transaction 1 June 2023 Type of transaction: On-market sale of ordinary shares Class of securities: Ordinary shares Number of shares: 2 000 Price per share: R93.22 Total value of shares: R186 440 Name of prescribed officer: B Nel Company: Harmony Nature of interest: Direct beneficial Date of transaction 2 June 2023 Type of transaction: On-market sale of ordinary shares Class of securities: Ordinary shares Number of shares: 59 431 Volume Weighted Average price R93.79 per share: Highest sale price: R94.01 Lowest sale price: R93.54 Total value of shares: R5 574 033 Prior clearance was obtained in respect of the above dealings by the executive director and prescribed officer. Ends. For more details, contact: Jared Coetzer Head: Investor Relations +27 (0) 82 746 4120 Johannesburg, South Africa 2 June 2023 Sponsor: J.P. Morgan Equities South Africa Proprietary Limited