Acea — Proxy Solicitation & Information Statement 2026

May 13, 2026

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INFO DIGITAL 2000

Publication of the lists of candidates for the appointment of the Board of Directors

Rome, 13 May 2026 - In relation to the Annual General Meeting of Shareholders, as per Calling Notice dated 23 April 2026, to be held on 3 and 4 June 2026, respectively in first and second call, Acea S.p.A. reports that the following Lists of candidates for the appointment of the Board of Directors have been duly filed at the Company.

LIST NO. 1 OF CANDIDATES FOR DIRECTORS

Presented by Roma Capitale, holder of no. 108,611,150 shares, corresponding to 51% of Acea SpA's share capital:

Candidate No. 1 Alessandro Rivera

Candidate No. 2 Barbara Marinali

Candidate No. 3 Angelo Piazza

Candidate No. 4 Fabrizio Palermo

Candidate No. 5 Luisa Melara

Candidate No. 6 Elisabetta Maggini

Candidate No. 7 Nathalie Tocci

Candidate No. 8 Alessandro Picardi

Candidate No. 9 Simone Silvi

Candidate No. 10 Alessandra Bucci

LIST NO. 2 OF CANDIDATES FOR DIRECTORS

Presented by Suez International SAS, holder of no. 41,172,499 shares, corresponding to 19.33% of Acea SpA's share capital:

Candidate No. 1 Ferruccio Resta

Candidate No. 2 Patrizia Rutigliano

Candidate No. 3 Marta Asquasciati

Candidate No. 4 Francesca Menabuoni

Candidate No. 5 Stefano Quaglino

Candidate No. 6 Nadia Fontana

LIST NO. 3 OF CANDIDATES FOR DIRECTORS

Presented by Fincal SpA, holder of no. 6,500,000 shares, corresponding to 3.05% of Acea SpA's share capital:

Candidate No. 1 Alessandro Caltagirone

Candidate No. 2 Massimiliano Capece Minutolo Del Sasso

Candidate No. 3 Elena De Simone

Candidate No. 4 Azzurra Caltagirone

Candidate No. 5 Annalisa Costantini

Candidate No. 6 Fabrizio Caprara

Candidate No. 7 Tatiana Caltagirone

Candidate No. 8 Annalisa Mariani

LIST NO. 4 OF CANDIDATES FOR DIRECTORS

Presented by a group of asset management companies and institutional investors, holder of no. 3,342,534 shares, corresponding to 1.57% of Acea SpA's share capital:

Candidate No. 1 Antonino Cusimano

Candidate No. 2 Susanna Maria Invernizzi

Candidate No. 3 Stefano Pareglio

Candidate No. 4 Valentina Beatrice Manfredi

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The Lists of candidates, together with the information and documentation required by the laws in force, are available to the public at the Company's head office, on the Company's Website www.acea.it, in the section "Annual General Meeting 2026" and on the authorised storage mechanism on the website .

For the Board of Directors
The Chairperson
Barbara Marinali

ACEA Group contacts
Corporate Affairs
Tel. +39 06 57991
Adempimentisocietaricorporate@aceaspa.it

Press Office
Tel. +39 06 57997733
ufficio.stampa@aceaspa.it
Company website: www.acea.it