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”) Dealings by a former director of the Company Johannesburg. 16 February 2023. Harmony hereby discloses the following details of dealings by one of its former directors (who was a director at the time of dealing): Name of Former Director: A Wilkens Name of Company: Harmony Date of transactions 12 May 2021* Type of transaction: On-market sale of ordinary shares Class of securities: Ordinary shares Nature and extent of interest Direct beneficial Date of transactions 12 May 2021* Number of shares 51 303 Volume Weighted Average price per R66.9561 share: Highest sale price: R67.2500 Lowest sale price: R67.0000 Total value of shares: R3 435 046.97 Date of transactions 3 September 2021* Number of shares: 50 000 Volume Weighted Average price per R49.2424 share: Highest sale price: R49.6200 Lowest sale price: R49.2200 Total value of shares: R2 462 119.30 *Prior clearance was erroneously not obtained by the former Director in respect of the above dealings due to an administrative oversight on the part of the former Director. Furthermore, despite the trades being executed in 2021, Harmony only became aware of the full details of the dealings on 15 February 2023. Ends. For more details, contact: Jared Coetzer Head: Investor Relations +27 (0) 82 746 4120 Johannesburg, South Africa 16 February 2023 Sponsor: J.P. Morgan Equities South Africa Proprietary Limited