Resignation of independent non-executive director - Dr OM Kamal

In compliance with Section 3.59 of the Listings Requirements of the JSE Limited, the Tharisa Board of Directors ('the Board') hereby announces that Dr Omar Kamal has resigned as independent non-executive director and member of the Audit, Risk and Climate Change and Sustainability Committees with effect 30 September 2025.

Dr Kamal has been a valued member of the Tharisa board for 11 years, bringing significant expertise and insight to the Company's strategic direction.

The Board expresses its appreciation to Dr Kamal for his dedication, commitment, and valuable contributions to the Company, and wishes him all the best in his future endeavours.

Paphos, Cyprus

23 September 2025

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

[email protected]

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. 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).