First Quarter 2022 Earnings Report

ESG Ratings Main scores S&P Global 88 84 INTERNAL CDP MSCI FTSE Russell AA AA 888 88 B A 3.4 3.2 ■ 2019 2020 ■2021 Scale from 0 to 100 MOODY'S ESG Solutions 49 49 57 54 - 2019 ■ 2020 ■2021 2019 ■ 2020 ■ 2021 Scale from D- to A Scale from CCC to AAA ISS ESG‣ B B- ■2021 2019 2020 2021 Scale from C- to A+ Scale from 0 to 100 enel 4.6 2019 2020 2021 Scale from 0 to 5 REFINITIV R 72 77 83 2019 ■ 2020 ■2021 Scale from 0 to 100 32 32

View entire presentation