Resignation and appointment of a non-executive directors Tharisa plc (Incorporated in the Republic of Cyprus with limited liability) (Registration number HE223412) JSE share code: THA LSE share code: THS A2X share code: THA ISIN: CY0103562118 LEI: 213800WW4YWMVVZIJM90 ('Tharisa' or the 'Company') Resignation and appointment of a non-executive directors In compliance with Section 3.59 of the Listings Requirements of the JSE Limited, the Tharisa Board of Directors (the Board) hereby announces that Ms Julia Zhengzhi Hu has resigned as a non-executive director and member of the Risk Committee with effect 17 September 2020. The Board extends its appreciation to Ms Hu for her commitment and service to the Company. The Board is pleased to announce that Ms Vaneese Wing Yee Chu was appointed to the Board as a non- executive director with effect from 17 September 2020. Ms Chu, a Chinese national, represents NWS Holdings Limited (“NWS”), a company whose shares are listed on the Hong Kong Stock Exchange, and a subsidiary of which holds 15.21% of Tharisa’s issued share capital with voting rights as at 31 August 2020. Ms Chu holds a Bachelor of Science (Operations Research and Industrial Engineering) degree from Cornell University, New York, USA. She has more than 10 years’ experience in mergers and acquisitions, investments and management. She is a Senior Manager of NWS Infrastructure Management Limited, a wholly owned subsidiary of NWS. Before joining the NWS group, she worked at KPMG Corporate Finance Limited. Ms Chu will be serving on the Risk Committee of Tharisa. The Board welcomes Ms Chu and looks forward to her contribution. Paphos, Cyprus 17 September 2020 JSE Sponsor Investec Bank Limited Connect with us on LinkedIn and Twitter to get further news and updates about our business. Investor relations contacts: Ilja Graulich (Head of Investor Relations and Communications) +27 11 996 3500 +27 83 604 0820 igraulich@tharisa.com Financial PR contacts: Bobby Morse / Augustine Chipungu / James Husband +44 207 466 5000 tharisa@buchanan.uk.com Broker contacts: Peel Hunt LLP (UK Joint Broker) Ross Allister / David McKeown / Alexander Allen +44 207 7418 8900 BMO Capital Markets Limited (UK Joint Broker) Thomas Rider / Neil Elliot / Michael Rechsteiner +44 207 236 1010 Berenberg (UK Joint Broker) Matthew Armitt / Jennifer Wyllie / Detlir Elezi +44 203 207 7800 Nedbank Limited (acting through its Corporate and Investment Banking division) (RSA Broker) Shabbir Norath +27 11 295 6575 Date: 17-09-2020 03:00:00 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.