Transaction in Own Shares and Total Voting Rights

Tharisa PLC

04 December 2025

 

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 1 December 2025 to 2 December 2025

Johannesburg Stock Exchange ('JSE') purchases
Date of purchase	1 December 2025 to 2 December 2025
Aggregate number of Ordinary Shares purchased on JSE	14 005
Lowest price paid per share:	ZAR21.4000
Highest price paid per share:	ZAR22.0000
Volume weighted average price paid per share:	ZAR21.6698
The aggregate number of shares purchased on the JSE in terms of the Repurchase Programme since 29 May 2025 is 363 799 shares at an average price of ZAR21.0812 per share and a total cost (including dealing and associated costs) of ZAR7 669 309.63.
London Stock Exchange ('LSE') purchases
Date of purchase	1 December 2025 to 2 December 2025
Aggregate number of Ordinary Shares purchased on LSE	248 761
Lowest price paid per share:	95.00 pence
Highest price paid per share:	97.00 pence
Volume weighted average price paid per share:	96.10 pence
The aggregate number of shares purchased on the LSE in terms of the Repurchase Programme since 29 May 2025 is 3 780 060 shares at an average price of 90.72 pence per share and a total cost (including dealing and associated costs) of GBP3 429 412.18.

Following the purchases during this period, the Company has 302 596 743 Ordinary Shares in issue, of which 9 494 748 Ordinary Shares are held in treasury.

The total number of voting rights in Tharisa is therefore 293 101 995. 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.

Completion of US$5.0 million Repurchase Programme

Following the purchase of ordinary shares on 2 December 2025, the Repurchase Programme, as announced on 29 May 2025, has now been completed.

Over the course of the Repurchase Programme, the Company has repurchased in aggregate
4 143 859 Ordinary shares on the Johannesburg and London stock exchanges for a total consideration of approximately US$5.0 million. A total of 363 799 shares have been repurchased on the Johannesburg Stock Exchange at a volume weighted average price of ZAR21.08 per share and 3 780 060 shares have been repurchased on the London Stock Exchange at a volume weighted average price of 90.72 pence per share.

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.

Paphos, Cyprus

4 December 2025

JSE Sponsor

Investec Bank Limited

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Investor Relations Contacts:

Ilja Graulich (Head of Investor Relations and Communications)

[phone]

[phone]

[e-mail]

Broker Contacts:

Peel Hunt LLP (UK Joint Broker)

Ross Allister / Georgia Langoulant

[phone]

BMO Capital Markets Limited (UK Joint Broker)

Thomas Rider / Nick Macann

[phone]

Berenberg (UK Joint Broker)

Matthew Armitt / Jennifer Lee / Detlir Elezi

[phone]

About Tharisa - delivering on expansion and growth opportunities, commercialising technology solutions

Tharisa is an integrated resource group playing a pivotal role in the global energy transition and the decarbonisation of economies. Leveraging innovation and technology, Tharisa covers the entire value chain-exploration, mining, processing, beneficiation, marketing, sales, and logistics-for platinum group metals (PGMs) and chrome concentrates. The multi-generational Tharisa Mine on the south-western limb of the Bushveld Complex, South Africa-one of the richest sources of PGMs and chrome globally, while development of the Karo Platinum Project, a tier-one PGM project on Zimbabwe's Great Dyke, further reinforces Tharisa's growth strategy. Investments in beneficiation, including chrome and PGM alloy production, add significant downstream value. Tharisa is committed to reducing carbon emissions by 30% by and the  sustainability roadmap targets net carbon neutrality by 2050. Through Redox One, Tharisa is advancing proprietary iron chromium redox flow battery technology, utilising the very commodities it mines to support long-duration energy storage-a key component in the transition to renewable energy.

Tharisa plc is listed on the Johannesburg Stock Exchange (JSE: THA) and the London Stock Exchange (LSE: THS, Equity Shares (Transition) Category).

 

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