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') REVIEWED INTERIM RESULTS FOR THE SIX MONTHS ENDED 31 MARCH 2023 AND DIVIDEND TIMETABLE AND CONVERSION RATES Tharisa, an integrated resource group critical to the energy transition and decarbonisation of economies, with its principal operating asset being the Tharisa Mine located in the south western limb of the Bushveld Complex, South Africa and also owning Karo Mining Holdings a development stage PGM asset, located on the Great Dyke in Zimbabwe, has released its interim results for the six months ended 31 March 2023. REEF MINED PGM PRODUCTION (6E) CHROME CONCENTRATE PRODUCTION 2.1 Mt 77.0 koz 787.9 kt down 25.6% down 16.1% up 1.4% stripping ratio of 11.5 m3:m3 recovery of 67.0% recovery of 66.2% (HY2022: 2.8 Mt) (HY2022: 91.8 koz) (HY2022: 776.7 kt) REVENUE OPERATING PROFIT EBITDA US$335.3 m US$63.5 m US$81.2 m up 0.4% down 29.0% down 27.0% (HY2022: US$334.0 m) (HY2022: US$89.4 m) (HY2022: US$111.3 m) PROFIT BEFORE TAX NET CASH - OPERATING ACTIVITIES CASH AND CASH EQUIVALENTS US$72.4 m US$97.1 m US$205.7 m down 41.8% up 97.8% up 102.7% (HY2022: US$124.3 m) (HY2022: US$49.1 m) (HY2022: US$101.5 m) EARNINGS PER SHARE HEADLINE EARNINGS PER SHARE INTERIM DIVIDEND US 17.4 cents US 17.6 cents US 3 cents down 46.8% up 13.5% (HY2022: US 3 cents) (HY2022: US 32.7 cents) (HY2022: US 15.5 cents) 16.4% of NPAT This short form announcement is the responsibility of the directors and is only a summary of the information in the full announcement. The full announcement was released on SENS and RNS on 19 May 2023, and can be found on the Company’s website at www.tharisa.com and can also be viewed here, https://senspdf.jse.co.za/documents/2023/jse/isse/THA/H1results.pdf. Copies of the announcement may also be requested at the Company’s registered office, at no charge, during office hours. Any investment decision should be based on the full announcement published on SENS and RNS. Ernst & Young Cyprus Limited has expressed an unmodified review opinion on the reviewed interim condensed consolidated financial statements. That report is available on the Company’s website: www.tharisa.com. DIVIDEND CURRENCY CONVERSION RATES AND TIMETABLE An interim dividend of US 3.0 cents per ordinary share has been declared. The interim dividend will be paid on Wednesday, 21 June 2023 and will be paid from income reserves. Shareholders on the principal Cyprus register will be paid in United States Dollar (US$), shareholders whose shares are held through Central Securities Depositary Participants (CSDPs) and brokers and are traded on the JSE will be paid in South African Rand (ZAR) and holders of Depositary Interests traded on the LSE will be paid in Sterling (GBP). The currency equivalents of the dividend, based on the weighted average of the South African Reserve Bank’s daily rate at approximately 10:30 (UTC+2) on 18 May 2023, being the currency conversion date, are as follows: Exchange rate Dividend per share in payment currency South Africa – JSE ZAR19.45320 / US$ 58.35960 South African cents per share United Kingdom - LSE GBP0.80463 / US$ 2.41390 pence per share The timetable for the dividend declaration is as follows: Currency conversion date Thursday, 18 May 2023 Declaration date and currency conversion rates announced Friday, 19 May 2023 Last day to trade cum-dividend rights on the JSE Tuesday, 6 June 2023 Last day to trade cum-dividend rights on the LSE Wednesday, 7 June 2023 Shares will trade ex-dividend rights on the JSE Wednesday, 7 June 2023 Shares will trade ex-dividend rights on the LSE Thursday, 8 June 2023 Record date for payment on both JSE and LSE Friday, 9 June 2023 Dividend payment date Wednesday, 21 June 2023 No dematerialisation or rematerialisation of shares within Strate will be permitted between Tuesday, 6 June 2023 and Friday, 9 June 2023, both days inclusive. No transfers between registers will be permitted between Thursday, 18 May 2023 and Friday, 9 June 2023, both days inclusive. Page 2 of 5 TAX IMPLICATIONS OF THE DIVIDEND Shareholders and Depositary Interest holders should note that information provided should not be regarded as tax advice. Shareholders are advised that the dividend declared will be paid out of income reserves and may therefore be subject to dividend withholding tax depending on the tax residency of the shareholder. South African tax residents South African shareholders are advised that the dividend constitutes a foreign dividend. For individual South African tax resident shareholders, dividend withholding tax of 20% will be applied to the gross dividend of 58.35960 South African cents per share. Therefore, the net dividend of 46.68768 South African cents per share will be paid after 11.67192 South African cents in terms of dividend withholding tax has been applied. Shareholders who are South African tax resident companies are exempt from dividend tax and will receive the dividend of 58.35960 South African cents per share. This does not constitute legal or tax advice and is based on taxation law and practice in South Africa. Shareholders should consult their brokers, financial and/or tax advisors with regard to how they will be impacted by the payment of the dividend. UK tax residents UK tax residents are advised that the dividend constitutes a foreign dividend and that they should consult their brokers, financial and/or tax advisors with regard to how they will be impacted by the payment of the dividend. Cyprus tax residents Individual Cyprus tax residents are advised that the dividend constitutes a local dividend and that they should consult their brokers, financial and/or tax advisors with regard to how they will be impacted by the payment of the dividend. Additional information required by the JSE Listing Requirements Tharisa has a total of 302 596 743 ordinary shares in issue on Friday, 19 May 2023, of which 299 746 365 carry voting rights and are eligible to receive dividends. By order of the Board Paphos, Cyprus 19 May 2023 DIRECTORS Loucas Pouroulis (Executive Chairman) Phoevos Pouroulis (Chief Executive Officer) Michael Jones (Chief Finance Officer) Carol Bell (Lead independent non-executive director) David Salter (Independent non-executive director) Antonios Djakouris (Independent non-executive director) Page 3 of 5 Omar Kamal (Independent non-executive director) Roger Davey (Independent non-executive director) Shelley Lo (Non-executive director) Zhong Liang Hong (Non-executive director) REGISTERED ADDRESS Office 108 – 110, S. Pittokopitis Business Centre 17 Neophytou Nicolaides and Kilkis Streets 8011 Paphos, Cyprus www.tharisa.com GROUP COMPANY SECRETARY Sanet Findlay The Crossing, 372 Main Road Bryanston, Johannesburg 2022 South Africa Email: secretarial@tharisa.com ASSISTANT COMPANY SECRETARY Lysandros Lysandrides 26 Vyronos Avenue 1096 Nicosia Cyprus TRANSFER SECRETARIES Computershare Investor Services Proprietary Limited, Cymain Registrars Limited 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 / Oonagh Reidy +44 207 466 5000 tharisa@buchanan.uk.com Broker contacts: Peel Hunt LLP (UK Joint Broker) Ross Allister / Georgia Langoulant +44 207 7418 8900 Page 4 of 5 BMO Capital Markets Limited (UK Joint Broker) Thomas Rider / Nick Macann +44 207 236 1010 Berenberg (UK Joint Broker) Matthew Armitt / Jennifer Lee / Detlir Elezi +44 203 207 7800 Nedbank Limited (acting through its Corporate and Investment Banking division) (RSA Broker) Carlyle Whittaker +27 11 294 0061 ABOUT THARISA Tharisa is an integrated resource group critical to the energy transition and decarbonisation of economies. It incorporates mining, processing, exploration, and the beneficiation, marketing, sales, and logistics of PGMs and chrome concentrates, using innovation and technology as enablers. Its principal operating asset is the Tharisa Mine located in the south western limb of the Bushveld Complex, South Africa. The mechanised mine has an 18 year open pit life and the ability to extend operations underground by at least an additional 40 years. Tharisa also owns Karo Mining Holdings a development stage, low cost, open pit PGM asset, located on the Great Dyke in Zimbabwe. The Company is committed to reducing its carbon emissions by 30% by 2030 and the development of a roadmap is continuing to be net carbon neutral by 2050. Tharisa plc is listed on the Johannesburg Stock Exchange (JSE: THA) and the Main Board of the London Stock Exchange (LSE: THS). Page 5 of 5