Investor Relations Company Presentation

150 YEARS We are building the world of tomorrow. A HOCHTIEF Abertis - SH-288 acquisition (October 2023) • Abertis has agreed to buy a 56.76% stake in the Blueridge Transportation Group (BTG) operating the SH-288 in Houston until March 2068 (45 years) for USD 1.53bn from ACS Group (closing expected before year- end) The SH-288 concession is a high-quality transportation asset comprising 17km of managed lanes capturing the majority of traffic of South Houston. It connects the city of Houston (7th largest metropolitan area in the US with a c7m population) with the Gulf of Mexico and all the industry located in the area along with direct access to the Texas Medical Center, the world's largest medical complex SH-288 managed lanes traffic relies on dynamic tolling where tolls can be adjusted to maintain traffic above the target speed Leverages existing presence in the US and achieve synergies within a solid regulatory framework Key metrics 2023 (pro-forma): Revenues USD 90m and EBITDA USD 66m backed by solid traffic growth (+9% in H1 2023 compared with H2 2022) Hedwig Vilage Clover at Jacinto City Houston US-69 Texas Medical Center + Deer Park Pasadena 4 1-610 Missouri City Land Beltway 8 Fresno ΤΟ Sienna Plantation South Houston SH-288 Managed Toll Lanes SH-288 Maniel Pearland abertis Webste Friendswood League City 0 La Porte Dickinson ACS Ances 56.76% 43.24% SH-288 Texas 37

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