Notice of Results

RHI Magnesita N.V.

("RHI Magnesita" or the "Group")

Notice of 2024 Half Year Results

RHI Magnesita will announce its half year results for the six month period to 30 June 2024 on Wednesday, 24 July 2024 at 07:00 UK time (08:00 CET).

A presentation for investors and analysts will be broadcast via webcast at 08:15 UK time (09:15 CET) on 24 July 2024. The webcast can be accessed using the following link: https://www.investis-live.com/rhimagnesita/6662ee06806e6315001f447b/wrqq.

A replay will be made available via the webcast link shortly after the event finishes.

For further enquiries, please contact:

Chris Bucknall, Head of Investor Relations

Tel +43 699 1870 6490

E‐mail: chris.bucknall@rhimagnesita.com

For media enquiries:

Hudson Sandler

Mark Garraway, Emily Dillon, Nick Moore

Tel +44 020 7796 4133

E-mail: rhimagnesita@hudsonsandler.com

About RHI Magnesita

RHI Magnesita is a leading global supplier of high-grade refractory products, systems and solutions which are critical for high-temperature processes exceeding 1,200°C in a wide range of industries, including steel, cement, non-ferrous metals and glass. With a vertically integrated value chain, from raw materials to refractory products and full performance-based solutions, RHI Magnesita serves customers around the world, with around 16,000 employees in 47 production sites, 8 recycling facilities and more than 70 sales offices. RHI Magnesita intends to build on its leadership in revenue, scale, product portfolio and diversified geographic presence to expand further in high growth markets.

The Group maintains a premium listing on the Official list of the London Stock Exchange (symbol: RHIM) and is a constituent of the FTSE 250 index, with a secondary listing on the Vienna Stock Exchange (Wiener Börse). For more information please visit: www.rhimagnesita.com