THARISA PLC - Tharisa plc Transaction in Own Shares

Tharisa plc Transaction in Own Shares

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 29 May 2025 (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 7 November 2025 to 14 November 2025

Johannesburg Stock Exchange ('JSE') purchases
Date of purchase                                                 7 November 2025 to 14 November 2025
Aggregate number of Ordinary Shares purchased on JSE                                           9 454
Lowest price paid per share:                                                              ZAR21.8100
Highest price paid per share:                                                             ZAR22.0000
Volume weighted average price paid per share:                                             ZAR21.9055

The aggregate number of shares purchased on the JSE in terms of the Repurchase Programme since
29 May 2025 is 329 138 shares at an average price of ZAR21.0319 per share and a total cost (including
dealing and associated costs) of ZAR6 922 404.04.

London Stock Exchange ('LSE') purchases
Date of purchase                                                  7 November 2025 to 14 November 2025
Aggregate number of Ordinary Shares purchased on LSE                                          140 352
Lowest price paid per share:                                                              94.88 pence
Highest price paid per share:                                                             97.75 pence
Volume weighted average price paid per share:                                             97.21 pence

The aggregate number of shares purchased on the LSE in terms of the Repurchase Programme since
29 May 2025 is 2 891 319 shares at an average price of 89.22 pence per share and a total cost (including
dealing and associated costs) of GBP2 579 653.77.

Following the purchases during this period, the Company has 302 596 743 Ordinary Shares in issue,
of which 8 571 346 Ordinary Shares are held in treasury.

The total number of voting rights in Tharisa is therefore 294 025 397. 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
17 November 2025

JSE Sponsor
Investec Bank Limited

Connect with us on LinkedIn 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

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 multi-generational Tharisa Mine, located in the south-
western limb of the Bushveld Complex, South Africa. Tharisa is also developing the Karo Platinum
Project, a tier-one PGM asset located on the Great Dyke in Zimbabwe, while simultaneously
focusing on beneficiation in the form of chrome and PGM alloys. A 15-year Power Purchase
Agreement for the procurement of wheeled renewable energy and a 40 MW solar project will
ensure that Tharisa Minerals' drive to reduce its carbon footprint by 30% by 2030 is well within
reach, forming a major part of a roadmap to become net carbon neutral by 2050. 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 has an Equity Shares (Transition) Category listing on the London Stock Exchange (LSE:
THS).

Date: 17-11-2025 03:00:00
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