SASB Report 2020

Methodological Note The SASB Report 2020 of Prysmian Group (hereinafter “the Report”) is aligned to the Sustainability Accounting Standards Board (SASB) framework , published in 2018, for the sector denoted as “Resource Transformation — Electrical & Electronic Equipment” (SASB code RT-EE). However, given the diversified nature of Prysmian Group’s business, also accounting metrics associated with the sector denoted as “Infrastructure - Engineering & Construction Services” (SASB code IF-EN), that would be of interest to our stakeholders, have been included. Prysmian Group will continuously evaluate the disclosure of additional topics as these emerge, considering relevance, availability of high-quality data and consistency with the Prysmian Group’s business. The “SASB disclosure index”, containing details of the accounted metrics, is reported at the end of the Report (page 22). The Report refers to the 2020 financial year (from January 1 st to December 31 st ) and includes the most recent year-end figures available. The data and information reported refer to all companies of the Prysmian Group at December 31, 2020, consolidated on a line-by-line basis. Within the report are included figures of 2019 as a comparison year. For more information regarding the Group’s approach to the dimension included in the following disclosure, please refer to the information contained in the 2020 Sustainability Report (prepared in accordance with articles 3 and 4 of the Italian Legislative Decree 254/16) approved by the Board of Directors of Prysmian S.p.A. on March 10, 2021. This document has been subjected to a limited examination, according to the principle of the International Standard on Assurance Engagement (ISAE 3000 Revised), undertaken by EY S.p.A. The audit was performed according to the procedures indicated in the “Independent Auditors’ Report”, included in this document. For comments, requests, opinions and suggestions for improvement on Prysmian’s operations and on the information reported in this Report, please contact Corporate and Business Communications at the following email address: [email protected] . 6 _ 7 Prysmian Group