Q2/2023 Investor Presentation

Consolidated Income Statement¹ AIXTRON (EUR million) H1/2023 H1/2022 +/- (%) Q2/2023 Q2/2022 +/- (%) Revenues 250.7 191.1 31% 173.5 102.5 69% Cost of sales 146.1 117.3 25% 100.0 64.7 55% Gross profit 104.6 73.7 42% 73.5 37.8 94% Gross margin 42% 39% 3pp 42% 37% 5pp Selling expenses 6.7 5.1 31% 3.6 2.5 44% General & admin expenses 16.5 13.8 20% 8.5 7.0 21% R&D 39.0 27.3 43% 19.8 13.2 50% Net other operating income (5.6) (3.9) 44% (3.0) (2.1) 43% EBIT 48.1 31.4 53% 44.6 17.2 159% EBIT margin 19% 16% 3pp 26% 17% 9pp Net profit 43.9 31.1 41% 40.4 17.3 134% 1 Rounded figures; may not add up 3

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