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' or 'Group')

Income Investor Meetings and Contemplated Senior Secured Bond Issue

Tharisa, the mining, metals, and innovation company dual-listed on the Johannesburg and London stock exchanges, has mandated DNB Carnegie and HSBC as Joint Bookrunners, and Absa Bank Limited (acting through its Corporate & Investment Banking division) as co-manager, to arrange a series of fixed income investor meetings commencing on 2 September 2026.

A new 5-year senior secured bond with an initial issue amount of USD300 million issued by the Company's wholly owned subsidiary Arxo Finance plc may follow, subject to inter alia market conditions. The net proceeds from the contemplated bond issue will be deployed for capital expenditure at the Karo Platinum Mine, and for general corporate purposes.

For bookrunners, please contact:

·    Alexander Wheal

o  Managing Director Debt Capital Markets, Global Banking & Markets | HSBC Bank plc

o  Phone: +44 207 991 5660

o  Mobile: +44 584 401 519

o  Email: [email protected]

·    Adam Vegh

o  Vice President CEEMEA Debt Capital Markets Capital Markets & Advisory | HSBC Bank plc

o  Mobile: +44 7384 794 650

o  E-mail: [email protected]

·    Marcus Rosén

o  Managing Director Investment Banking HY Origination | DNB Carnegie

o  Mobile: +47 94 13 78 77

o  E-mail: [email protected]

Paphos, Cyprus

2 September 2026

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 - 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 PGMs and chrome concentrates. The low cost, multigenerational Tharisa Mine is located on the southwestern limb of the Bushveld Complex, South Africa, the largest source of PGMs and chrome globally. Development of the Karo Platinum Project, a tier-one PGM project on Zimbabwe's Great Dyke, further reinforces Tharisa's growth strategy. Investments in downstream beneficiation, including proven chrome and PGM alloy production, will add significant value when commercialised. Tharisa is committed to reducing carbon emissions by 30% by 2030 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).