Investor Presentation Q3 2020

Siltronic Outlook 2020 (as of July 21, 2020) - unchanged Sales - mid-single digit %-range below 2019 with a slight sequential decrease in H2 vs. H1 EBITDA margin - mid-single digit percentage points below 2019 Depreciation EBIT around EUR 140m significantly below 2019 due to higher depreciation Tax rate below 10% Capex around EUR 200m Net cash flow slightly below 2019 Earnings per share (siltronic perfect silicon solutions - significantly below 2019 Siltronic AG - Investor Presentation Q3 2020 October 29, 2020 26 of 34

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