Investor Presentation FY 2020

Contact and Additional Information Issuer and Contact Siltronic AG Einsteinstraße 172 D-81677 München Investor Relations: Petra Mueller email: [email protected] Tel. +49 89 8564-3133 Financial Calendar 2021 Additional Information ISIN: DE000WAF3001 WKN: WAF300 Deutsche Börse: Listing: WAF Frankfurt Stock Exchange Prime Standard Annual General Meeting April 29, 2021 DEUTSCHE BÖRSE Q1 Quarterly Statement May 7, 2021 Q2 Interim Report Q3 Quarterly Statement July 28, 2021 October 26, 2021 PRIME STANDARD (siltronic perfect silicon solutions Siltronic AG - Investor Presentation FY 2020 March 9, 2021 MDAX TecDAX Corporate Responsibility rated by Prime ISS-oekom 30 of 32

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