Investor Presentation Q2 2023

Our objectives and values Profit We aim for profitability above industry average and positive cash flow across all market cycles Capabilities Be one generation ahead - we enable innovation at our customers Sustainability We act as a good "Corporate Citizen❞ and fully compliant with all applicable regulations. Part of our sustainability strategy are initiatives to anchor CSR even more in the company Partners Together with our customers and suppliers we build a winning network to create mutual, enduring value Efficiency Be a highly efficient, lean and fast moving organization driven by continuous improvement Quality We are committed to perfection in processes, products, organization and cooperation in order to to consistently fulfill our customer expectations People Diversity and respect are key. We promote strengths of people and expect a sense of responsibility and performance development. Occupational safety is a top focus Growth We continuously increase our company value by at least growing with the market (siltronic perfect silicon solutions Siltronic AG - Investor Presentation Q2 2023 July 27, 2023 O Siltronic AG 13

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