Harmony secures regulatory approvals for the expansion of its Kareerand tailings storage facility project Harmony Gold Mining Company Limited Registration number 1950/038232/06 Incorporated in the Republic of South Africa ISIN: ZAE000015228 JSE share code: HAR (“Harmony” or “the Company”) HARMONY SECURES REGULATORY APPROVALS FOR THE EXPANSION OF ITS KAREERAND TAILINGS STORAGE FACILITY PROJECT Capital allocated to reduce environmental footprint, lowering risk and improving margins Johannesburg, Tuesday, 14 June 2022. Harmony Gold Mining Company Limited (“Harmony” and/or “the Company”) is pleased to announce that key regulatory approvals were obtained to allow the Company to proceed with its Kareerand expansion project to ensure the continued retreatment of surface depositions at Mine Waste Solutions. Mine Waste Solutions was acquired by Harmony in October 2020. It is a reclamation operation in the Stilfontein/Orkney area in the North West province in South Africa, which treats 2.2 million tonnes per month from historical tailings facilities through the Mine Waste Solution plant. Residue is then deposited on the existing Kareerand tailings storage facility, which is running out of tailings deposition capacity, thus necessitating building an extended tailings dam (“the Kareerand Expansion Project”). The Kareerand Expansion Project is expected to produce approximately 100 000 ounces of gold per annum and add 16 years’ life of mine at an estimated all-in sustaining cost of about R572 000/kg over the life of the mine – lowering the risk profile of Harmony’s asset portfolio and improving its margin as a result. “The Kareerand Expansion Project is yet another example of “Mining with Purpose.” This low risk, low cost operation will ensure healthy returns for investors, the creation of jobs for another 16 years and the rehabilitation and restoration of land in the area,” said Peter Steenkamp, Harmony’s chief executive officer. Ends. For more details contact: Jared Coetzer Head of Investor Relations +27 (0)82 746 4120 14 June 2022 Sponsor: J.P. Morgan Equities South Africa Proprietary Limited. Date: 14-06-2022 03:40:00 Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE'). The JSE does not, whether expressly, tacitly or implicitly, represent, warrant or in any way guarantee the truth, accuracy or completeness of the information published on SENS. The JSE, their officers, employees and agents accept no liability for (or in respect of) any direct, indirect, incidental or consequential loss or damage of any kind or nature, howsoever arising, from the use of SENS or the use of, or reliance on, information disseminated through SENS.