Universal Registration Document 2024

SUSTAINABILITY REPORT 4 ENVIRONMENTAL MATTERS

These procedures were updated and detailed in the 2021 Vigilance Plan (section 2.2.6 “Soil pollution”). In particular, they specify the provisions to be included in occupancy contracts, as well as the checks to be carried out on occupants at risk in order to prevent pollution risks and the management and information measures for third parties in the event of accidental pollution. This procedure is based on current regulations on: u the National Methodology for Polluted Sites and Soils to which Aéroports de Paris complies on its French sites, including on a voluntary basis in cases not strictly covered by the regulations; u the skills specifically acquired by its in-house Laboratory. It includes voluntary prevention methodologies to prevent any polluting impact, for example: u internal management of chemical products (use of the best available products and the least polluting/more respectful of human health possible). This management includes the principles of substitution and minimisation of the use of substances of very high concern and the gradual elimination of the use of substances of very high concern (see ESRS E2 “Controlling our discharges into water”); u the introduction of specific soil and groundwater monitoring clauses in rental leases (thus acting across the entire value chain of the Group's activities); u the systematic preparation of Polluted Sites and Soils assessments before and after the project/rental, construction, development, renovation, etc. In the Paris airports and virtually all other Groupe ADP airports, storage and distribution of aviation fuel are provided by external companies that maintain and operate the tanks and the hydrant fuelling system for which they also ensure the control and compliance. Within Groupe ADP, only Almaty airport (Kazakhstan) supplies and distributes aircraft fuel. In France, these storage facilities are subject to legislation on installations classified for the protection of the environment (ICPE). The structures responsible for storage and distribution are regularly audited for quality and compliance by the Direction régionale et interdépartementale de l'environnement, de l'aménagement et des transports (DRIEAT). Groupe ADP communicates regularly with the third parties in question to keep abreast of any changes in their activities and the classification of their facilities (information letters, participation in site monitoring committees, etc.). All hazardous materials transport facilities comply with the requirements of the internal documents concerning prevention and remediation procedures already mentioned above. As part of the ISO 14001 standard, pollution risks are regularly assessed as part of our Environmental Analyses. Other methods (adapted to local legal and natural contexts) are used outside France. In addition, for their proper operation and to meet international regulatory obligations on aviation safety, the airports have internal procedures for the prevention and response to any polluting spill in the aeronautical areas. Groupe ADP airports are therefore equipped, depending on the nature of their traffic and their layout, with related

procedures. For example, these enable a significant response in the event of an accidental spill so that the risks of fire/ explosion, the impact on workers and spillage into the natural environment via rainwater networks are greatly reduced or even eliminated. in the event of the installation of hydrocarbon separators and retention basins. Operational effectiveness In addition to the procedures for managing soil pollution governed by the National Methodology for Polluted Sites and Soils, a groundwater monitoring network has been set up at Groupe ADP airports concerned. It is constantly evolving technologically to prevent, monitor, detect and react to any polluting events. The monitoring of groundwater at Paris airports is governed by obligations to measure and publish data transmitted to the Water Police authorities (inter-prefectural decree No. 2020-12/DCSE/BPE/E of 17 September 2020 (Charles de Gaulle) and No. 2021 PREF DCPPAT BUPPE 282 of 28 December 2021 (Orly). The Paris hubs are also equipped with internal databases and mapping tools to geolocate the results of this monitoring and thus enable a better understanding of the risks and a constant adaptation of the monitoring and prevention networks. The Aéroports de Paris SA Laboratory is responsible for technical and regulatory monitoring in the field of polluted sites and soils. It has a team dedicated to these issues and contracts with consultancies and laboratories accredited by the French Ministry of Ecology in this field. It also participates in European and international work on these issues, particularly within ACI Europe. Aéroports de Paris SA's Laboratory and local environmental management systems are working to identify the most critical substances in our processes and in some of those used by our stakeholders, and to find alternative or more effective treatment methods. Since 2022, the Aéroport de Paris SA laboratory has been working with its partner VALGO on a programme concerning PFAS (poly or perfluoroalkylated substances), toxic and very persistent emerging pollutants, for which regulations are evolving rapidly and in a very restrictive way. Their extensive use in the industry over several decades, particularly in fire fighting foams, exposes the airport sector to the risk of environmental contamination. Based on this observation, several internal awareness-raising actions were carried out in 2022 and a preliminary assessment of this risk at ADP's Paris airports (inventory of uses, products and users) was initiated. In this respect, it should be noted that since 2018, Groupe ADP's Paris airports no longer purchase fire-fighting products that include PFAS in their composition ( i.e., the date on which these PFAS-free products were placed on the French market). Regular exchanges with the authorities and dedicated working groups (ACI EUROPE, DGAC, BRGM, UAF, etc.) ensure the smooth running of this initiative and disseminate the knowledge acquired by Aéroports de Paris within the profession.

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UNIVERSAL REGISTRATION DOCUMENT 2024 w AÉROPORTS DE PARIS