Investor Presentation Q3 2020

Q3 sales down due to FX and product mix Sales, in EUR m Ø FX rates Q3/19 Q4 Q1/20 Q2 Q3 323.1 299.8 304.3 300.1 299.2 Q3 2019 Q4 Q1 2020 Q2 Q3 (siltronic perfect silicon solutions. Siltronic AG - Investor Presentation Q3 2020 October 29, 2020 EUR/USD 1.11 1.11 1.10 1.10 1.17 EUR/JPY 119 120 120 118 124 Comments ▸ Wafer area up q-o-q and y-o-y ▸ Flattish price trend q-o-q ▸ Strong headwind from: ▸ EUR strength (negative EUR 16m impact q-o-q) ▸ Negative impact from product mix in Q3 ▸ ASP down y-o-y, stable q-o-q 15 of 34

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