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')

THARISA PLC TRANSACTION IN OWN SHARES

Tharisa, the mining, metals, and innovation company dual-listed on the Johannesburg and London stock exchanges, announces that, in accordance with the terms of its share repurchase programme announced on 26 March 2024 (the 'Repurchase Programme'), it purchased the following number of ordinary shares of USD0.001 each in the Company ('Ordinary Shares') through Peel Hunt LLP ('Peel Hunt'). The Ordinary Shares purchased will be held in treasury for a period not exceeding two calendar years from the repurchase date and, unless reissued, will be cancelled.

Purchases during the period 4 April 2023 to 12 April 2023

Correction of announcement released on 4 April 2024

The announcement released on 4 April 2024 had overstated the number of shares purchased by the Company by three (3) shares. The table below reflects the correct number of shares purchased and the correct price information.

Following the purchases during this period and taking into account the correction of the shares repurchased on 2 April 2024, the Company has 302 596 743 Ordinary Shares in issue, of which
2 759 405 Ordinary Shares are held in treasury.

The total number of voting rights in Tharisa is therefore 299 837 338. This figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the FCA's Disclosure Guidance and Transparency Rules.

The information contained in this update is the responsibility of the board of directors and has not been reviewed or reported on by the Group's external auditors.

During any of Tharisa's closed periods, Peel Hunt will make trading decisions in relation to the Company's securities independently of the Company. Any share purchases during these periods will be undertaken within certain pre-set parameters and in accordance with the Company's general authority to repurchase shares.

Paphos, Cyprus

15 April 2024

JSE Sponsor

Investec Bank Limited

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Investor Relations Contacts:

Ilja Graulich (Head of Investor Relations and Communications)

+27 11 996 3500

+27 83 604 0820

igraulich@tharisa.com

Broker Contacts:

Peel Hunt LLP (UK Joint Broker)

Ross Allister / Georgia Langoulant

+44 207 418 8900

 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

About Tharisa

Tharisa is an integrated resource group critical to the energy transition and decarbonisation of economies. It incorporates exploration, mining, processing 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 mine has a 13-year open pit life and is strategically advancing the vast mechanised underground resource which extends for over 60 years. Tharisa is developing the Karo Platinum Project, a 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 to become net carbon neutral by 2050. As part of this energy transition, the 40 MW solar project adjacent to the Tharisa Mine is well advanced. Redox One is accelerating the development of a proprietary iron chromium redox flow long duration battery utilising the commodities we mine. Tharisa plc is listed on the Johannesburg Stock Exchange (JSE: THA) and the Main Board of the London Stock Exchange (LSE: THS).