Investor Presentaiton

Outlook 2023 confirmed and substantiated on the upper range of the bandwidths FY 2023 Sales 15% -17% below 2022 EBITDA Margin 28% - 30% Depreciation around EUR 200 mn (siltronic perfect silicon solutions Siltronic AG - Investor Presentation Q3 2023 October 26, 2023 Capex around EUR 1.3 bn Net Cash Flow significantly below 2022 Tax Rate around 15% Based on FX assumption EUR/USD at 1.10 O Siltronic AG 31

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