Tharisa Regulatory News (THS)

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')

COLD COMMISSIONING OF VULCAN FINE CHROME BENEFICIATION PLANT COMMENCES

Arxo Metals commercialises ultra-fine chrome recovery technology

Tharisa, the platinum group metals (PGMs) and chrome co-producer dual-listed on the Johannesburg and London stock exchanges, today announces that cold commissioning of its Vulcan utra-fine chrome recovery and beneficiation plant ("Vulcan") has commenced.

The timetable to completion of the new US$55 million (~ZAR1 billion) plant remains firmly on track with initial saleable production due before calendar year end.

Once fully commissioned, Tharisa Mine is expected to materially increase its chrome recoveries from ~62% to ~82% resulting in increased chrome production of approximately 20% at low incremental unit operating costs and driving Tharisa further down the cost curve. The plant, which will process live tailings produced by the independent Voyager and Genesis plants, will ensure further beneficiation of the Company's chrome production at the Tharisa Mine, while reducing unit output of carbon emissions, aligned with Tharisa's recently announced decarbonisation plan.

Whilst some final elements of the construction process remain to be completed, Tharisa's engineering team has commenced cold commissioning, with comprehensive testing of the entire circuit, to be completed prior to chrome tailings material entering the plant. Of the total capex, over 90% was procured locally in South Africa, with up to 1 000 contractors locally sourced and over 100 new permanent jobs created.

Vulcan is the first large scale plant to produce chrome concentrates from chrome ultra-fines, consolidating Tharisa's position as a key participant in the beneficiation of chrome production. The concept of Vulcan was developed entirely by Arxo Metals Proprietary Limited, a wholly owned subsidiary of the Company and housing Tharisa's in-house R&D team, to extract the ultra-fine chrome from tailings.

With Tharisa Mine near Rustenburg having a 14-year remaining open pit life and a further 40 years underground, Vulcan will ensure maximum value extraction and beneficiation of the chrome ore. The Tharisa Mine has 860 Mt in mineral resource containing 172 Mt in contained Cr2O3 and 42.8m oz PGMs*.

Internally funded by Tharisa, Vulcan recommenced construction in October 2020, after the lifting of restrictions by the South African government during the height of wave 1 of the COVID-19 pandemic.

Phoevos Pouroulis, CEO of Tharisa, commented:

"Commissioning of the Vulcan plant perfectly exemplifies two Tharisa philosophies: challenging convention through innovation and delivering on our promise of maximising value through beneficiation of every cube mined. Vulcan provides the Company with the ability to further beneficiate our product whilst staying on track to meet our decarbonisation targets, thanks to the dedicated work from Arxo Metals, that has not only delivered the Vulcan process but has also delivered further beneficiation opportunities, including metal alloys and PGM products using non-conventional methodologies. I am particularly proud of the team having achieved this milestone, safely, despite South Africa going through a second and even more hard hitting third wave which saw hundreds of man-hours lost due to COVID-19 infections. Vulcan is an important part of our sustainable growth strategy and ensures that Tharisa continues to drive sustainable returns for all of our stakeholders, while simultaneously pushing us even lower on the cost curve."

Paphos, Cyprus

5 October 2021

*Mineral Resource and Mineral Reserve Statement in 2020 annual report pages 50-55

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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

Financial PR contacts:

Bobby Morse / Augustine Chipungu / James Husband

+44 207 466 5000

tharisa@buchanan.uk.com 

Broker contacts:

Peel Hunt LLP (UK Joint Broker)

Ross Allister / David McKeown / Alexander Allen

+44 207 7418 8900

BMO Capital Markets Limited (UK Joint Broker)

Thomas Rider / Pascal Lussier Duquette / Nick Macann

+44 207 236 1010

Berenberg (UK Joint Broker)

Matthew Armitt / Jennifer Wyllie / Varun Talwar / Detlir Elezi

+44 203 207 7800

Nedbank Limited (acting through its Corporate and Investment Banking division) (RSA Broker)

Carlyle Whittaker

+27 11 294 0061

About Tharisa

Tharisa is an integrated resource group critical to the energy transition and decarbonisation of economies. It incorporates mining, processing, exploration and the beneficiation, marketing, sales and logistics of PGMs and chrome concentrates, using innovation and technology as enablers. Its principal asset is the Tharisa Mine located in the South-Western Limb of the Bushveld Complex, South Africa. The mechanised mine has a 14-year open pit life and the ability to extend operations underground by at least an additional 40 years. Tharisa also owns Salene Chrome, a development stage, low cost, open pit asset, located adjacent to the Great Dyke in Zimbabwe. Tharisa plc is listed on the Johannesburg Stock Exchange (JSE: THA) and the Main Board of the London Stock Exchange (LSE: THS)