Investor Presentation FY 2020

Estimated market growth of silicon area Silicon area share of end markets (2020) Phones 25% PCs 20% Servers 10% Industrials 15% Cars 10% Others 20% Impact on silicon area development Estimated development of end markets in 2021 Devices, silicon area share and their "content minus density" effect DRAM 18% NAND 23% High uncertainty due to phone mix Logic 34% Expected silicon growth in 2021 (siltronic perfect silicon solutions Siltronic AG - Investor Presentation FY 2020 March 9, 2021 Power/others 25% Impact on silicon area development 7-8% Source: Siltronic Marketing Feb.2021 28 of 32

View entire presentation