Investor Presentation Q2 2023

Outlook 2023 - H2 stronger burdened than H1, Q3 will be the trough from today's perspective FY 2023 Sales 14% -19% below 2022 EBITDA Margin 26% - 30% Depreciation around EUR 210 mn Capex around EUR 1.3 bn Net Cash Flow significantly below 2022 Tax Rate around 10% (siltronic perfect silicon solutions Siltronic AG - Investor Presentation Q2 2023 July 27, 2023 Based on FX assumption EUR/USD at 1.10 O Siltronic AG 25

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