ADP_REGISTRATION_DOCUMENT_2017

SOCIAL, ENVIRONMENTAL AND SOCIETAL RESPONSIBILITY INFORMATION 17 METHODOLOGICAL NOTE ON SOCIAL, SOCIETAL AND ENVIRONMENTAL REPORTING

The environmental indicators are consistent with the themes of Article R. 225-105-1 of the French Commercial Code and are divided into six general areas: ◆ preservation of resources and consumption of energy, water and raw materials; ◆ pollution and waste management; ◆ climate change and adaptation; ◆ certifications and approved projects; ◆ environmental training and awareness; ◆ expenditures to prevent the consequences of business activity on the environment. The choice of environmental indicators was made using a relevant approach that facilitates understanding of the Group's real challenges and comparison with companies in the same industry. This choice also takes into account the availability of data at the time of writing of the management report. These challenges are described in detail in the Social Responsibility Report. Methodological limitations and specificities The methodologies used for certain corporate and environmental indicators may have limitations due to: ◆ differences in available professional skills between Aéroports de Paris and its subsidiaries; ◆ specific provisions of social laws in certain countries; ◆ changes in scope of activity from one year to another; ◆ the difficulty of retrieving information in the event of subcontracting to, and/or joint ventures with, foreign partners; ◆ procedures for collecting and entering such information; ◆ availability of data during the reporting year . The 2017 management report lists data known by the Group at the year-end date. However, these data may need to be corrected over the next year if a significant anomaly is found and backed up by detailed supporting evidence. With effect from 2014, the consolidation of data on internal electricity consumption is calculated using the Airport Carbon Accreditation method . The “Consumption of drinking water” (internal + external) indicator includes a “network loss” percentage of around 13%. However, these network losses are not taken into consideration when calculating the “Internal consumption of drinking water” indicator. For waste indicators: ◆ a portion of construction waste is taken into account by the service providers responsible for construction and is not recognised in the total volume of non-hazardous industrial waste collected; ◆ Paris-Charles de Gaulle: the “Volume of internal hazardous industrial waste collected” indicator includes an insignificant percentage of hazardous waste produced externally; ◆ in the breakdown of internal hazardous waste per treatment type (presented in the table of environmental indicators), the percentage of recycled waste covers the share of waste generated internally, including waste generated in the terminal (passengers, businesses) which is recycled. The percentage of burnt wastes covers the part of wastes being subject to energetic recycling. The percentage of buried wastes covers the part of wastes being subject to burying.

For social indicators: ◆ the average workforce is calculated as full-time equivalent on the basis of staff registered as permanent, fixed-term, and specific job contracts (contracts for professionalisation, apprenticeship, employment support, future jobs), excluding Chairman and CEO and Chief Operating Officer; ◆ the managed workforce is including the current workforce and suspended contracts as of 31 December; ◆ the feminisation rate is calculated on the full and part-time staff managed as at 31 December; ◆ employees whose contracts terminated on 31 December are accounted for in the workforce as at 31 December 2017, as well as in the leaving occurring during the year; ◆ the number of training is calculated for permanent and fixed-term employees. The average number of our allocated by employee is calculated by dividing the total number of training hours by the average workforce in number of people (and not in full-time equivalent). The average workforce in the subsidiaries is not available in 2017 in number of employees hence the absence of data for this indicator for the subsidiaries. Consolidation and internal control Each entity is responsible for the data it provides, as is the department responsible for the consolidation of the indicator published: ◆ social data are collected by the Human Resources Department. The main source of data is the Human Resources Information System supplied by the SAP-HR management application. The other systems used are SAP FI- company financial statements and consolidated financial statements and specific workplace security applications. The data consolidated and verified at the entity level (Aéroports de Paris and its subsidiaries) are then made available to the Group Human Resources Department; ◆ environmental data are collected, audited, consolidated and verified for each airport department by the environmental officer and then consolidated by the Environment and Sustainable Development Department. During consolidation, consistency checks are performed on the data. Comparisons with results from previous years are made. Differences considered significant are subject to analysis and further processing. The most sensitive and most relevant data are controlled internally and monitored by the Executive Committee should any decisions need to be made. Any deviation from these methods is explained by the reporting protocol during the reporting year . External controls The verification of the completeness and fair presentation of social, environmental and societal information published in the 2017 Aéroports de Paris management report pursuant to Article L. 225-102-1 paragraph 7 of the French Commercial Code was performed by Deloitte. ◆ Indicators such as CO 2 emissions from energy production plants are audited annually by external parties.

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AÉROPORTS DE PARIS  REGISTRATION DOCUMENT 2017