First Half 2021 Financial Results

1H 2021 Operating Results improve as activities steadily return to pre-COVID levels Top line growth by 42% as a result of operational resumption of construction sites and Astaldi acquisition, despite restrictive measures still in place across different markets Profitability improvement: EBITDA up +78%, EBIT up +182% driven by operations recovery 1H margins still affected by: . • Sub-optimal efficiency on some sites due to COVID-19 restrictions Frontloaded restructuring costs related to Astaldi integration to generate benefits over 2021-23 plan (Єm) Operating results I I 2,213 Revenues +42% 3,137 1H 2020 (1) (1) 1H 2021 EBITDA margin 5.0% 6.3% +78% 198 EBITDA 111 EBIT margin 1H 2020 (1) 1H 2021 (1) 1.6% • Marginal short-term EBIT squeeze due to raw material cost inflation I | 35 2.0% +182% 61 (1) (1) 1H 2020 1H 2021 First Half 2021 Financial Results (1) Adjusted data for details please refer to the appendix; 1H 2020 does not include Astaldi 3.2% 99 1H 2021 - adjusted for PPA ammortization 12 webuild

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