RHI Magnesita N.V.

("RHI Magnesita" the "Company" or the "Group")

Notice of 2023 Full Year Results

RHI Magnesita will announce its Full Year Results for the year ended 31 December 2023 on Wednesday, 28 February 2024 at 11:00 UK time (12:00 CET).

A presentation for analysts will be held at 14:00 UK time (15:00 CET) on 28 February 2024 at the offices of Hudson Sandler, 25 Charterhouse Square, London EC1M 6AE. The analyst presentation will be broadcast live via webcast and conference call.

The webcast can be accessed using the following link:

https://www.investis-live.com/rhimagnesita/65b0de267f77220c00d6eb3f/yjye

?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

Hudson Sandler, Financial PR

Tel: +44 020 7796 4133

E-mail: rhimagnesita@hudsonsandler.com

About RHI Magnesita

RHI Magnesita is the 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 15,000 employees in 47 production sites, 7 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