The Vanguard Group's Disclosure on RHI Magnesita N.V.

The Vanguard Group, Inc. has released its Form 8.3 disclosure concerning its interests in RHI Magnesita N.V. This disclosure, mandated by Rule 8.3 of the Takeover Code, reveals The Vanguard Group's stake and transactions in relevant securities exceeding 1%. As of November 2, 2026, Vanguard holds 1,047,098 ordinary shares, representing a 2.21% interest.

The notice specifies that Vanguard has also addressed Vesuvius plc in its disclosures, indicating dealings with multiple parties. On November 2, 2026, Vanguard purchased 228 EUR 1 ordinary shares of RHI Magnesita at a price of 27.94 GBP each. The disclosure notes no engagement in options or derivatives related agreements.

The document closes with regulatory contact details, emphasizing compliance with the Takeover Code's requirements. No additional open positions were reported, affirming transparency in dealings.