Investor Presentation FY 2020

Strong equity ratio and solid net financial assets Equity, in EUR m Equity ratio, in % 47.8 52.8 45.4 45.4 43.7 Provisions for pensions, in EUR m Net financial assets, in EUR m Interest rates IFRS USA 2.98% 2.88% 2.46% 2.41% 2.07% Germany 1.24% 1.92% 1.23% 0,95% 0.69% 1031 930 867 872 833 606 552 567 589 588 492 509 519 499 411 Dec Mar Jun 19 20 20 Sep Dec 20 20 19 Dec Mar Jun 20 20 Sep Sep Dec 20 20 Dec 19 Mar Jun 20 20 Sep 20 Dec 20 (siltronic Siltronic AG - Investor Presentation FY 2020 perfect silicon solutions March 9, 2021 21 of 32

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