Investor Presentaiton

Siltronic Climate Action Program on track - 10% reduction of Scope 1 and 2 emissions in 2022 Climate Action Program Siltronic's commitment to Science Based Target initiative to limit global warming to 1.5°C: Goal until 2030: 50% CO2 reduction (Scope 1 and 2)² Goal until 2045: net zero ▸ Three main levers: [4] Energy efficiency Own generation of renewable energy Purchasing renewable energy CSR Targets until 2030 AFFORDABLE AND CLEAN ENERGY 12 CONDITION 6 14 CONSUMPTION AND PRODUCTION со CLEAN WATER AND SANITATION BELOIN WATER CLIMATE ACTION Reduce specific energy consumption by 20%1 Increase waste recycling by 25%¹ Reduce specific water usage by 20%1 Increase water recycling by 25%¹ Reduce absolute greenhouse gas emissions by 50%² (siltronic perfect silicon solutions Siltronic AG - Investor Presentation FY 2022 March 9, 2023 1) base year 2015 2) base year 2021 19

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