Investor Presentaiton

M&A growth on resilient base business Pricing and acquisitions offset organic volume decline RHI MAGNESITA Revenue growth driven by pricing and M&A € million 9% 3.572 3.236 4% -3% FY 2022 (constant Organic volume Organic price Acquisitions increase FY 2023 currency) Volume decline offset by industrial price catch up Price index rebased to 100 at 1 Jan 2022 Steel Industrial ◆ Revenue growth of 10% in constant currency despite very weak demand environment - - Steel volumes -3% excluding M&A, pricing flat Industrial volumes -11% excluding M&A, offset by 15% average price increase ◆ Acquisitions contributed 9% of revenue growth M&A EBITDA contribution €56 million versus guidance of c.€40 million ◆ Consistent improvement in operational KPIs underpins strong financial results 140 130 120 110 100 Jan 2022 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Q1 2023 Q2 2023 Q3 2023 Q4 2023 Investor Presentation | March 2024 16

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