Investor Presentation FY 2020

Revenues down q-o-q due to seasonality and some FX headwind Sales, in EUR m 323.1 304.3 300.1 299.2 284.5 Q4 2019 Q1 2020 Q2 2020 Q3 2020 Q4 2020 (siltronic perfect silicon solutions Siltronic AG - Investor Presentation FY 2020 March 9, 2021 Comments ▸ Positive Wafer area sold up y-o-y ▸ Stabilizing price trend in H2 ▸ Negative ▸ ASP in EUR down y-o-y Prices down in H1 H2 down due to negative product mix and strong Euro ‣ Q4 burdened by some seasonality 14 of 32

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