RHI Magnesita N.V. - Disclosure Announcement

On October 8, 2026, RHI Magnesita N.V. issued a detailed disclosure under Rule 8.3 of the Takeover Code, involving MSP Stiftung, Mag. Martin Schlaff, and related parties. The document outlines the public opening position disclosure and dealing disclosure by an individual with interests in relevant securities representing 1% or more.

Mag. Martin Schlaff is the founder and beneficiary of MSP Stiftung, a Liechtenstein-based foundation. Its management board includes Michael Hason Johannes, Christian Gasser, and Hadrian Paul Meister. The disclosure relates to RHI Magnesita N.V., revealing interests and short positions in 13,621,782 relevant securities, amounting to 28.75%.

No indemnity agreements, voting rights arrangements, or other pertinent understandings were reported. The disclosure was released by EQS News, a service of EQS Group, approved by the Financial Conduct Authority.