Press Release

Acea SpA (“Acea”) announces that the Board of Directors’ meeting to approve the separate and consolidated financial statements for the year ended 31 December 2022, initially scheduled for 2 March 2023, will now take place on Wednesday, 8 March 2023.

The Annual General Meeting of shareholders called to approve the financial statements for the year ended 31 December 2022, originally scheduled for 14 April 2023 and 18 April 2023 in first and second call, respectively, will now take place in first call on 18 April 2023 (Tuesday) and in second call on 20 April 2023 (Thursday).

The Company confirms that the dividend for 2022 will be payable from 21 June 2023, with an ex-dividend date of 19 June 2023 and a record date of 20 June 2023.

The other dates for the Board of Directors’ examination of the financial results for 2023 remain unchanged with respect to those announced to the market on 30 January 2023:

Tuesday, 9 May 2023 Interim report for the three months ended 31 March 2023

Wednesday, 26 July 2023 Half-year report for the six months ended 30 June 2023

Tuesday, 14 November 2023 Interim report for the nine months ended 30 September
2023

Meetings with the financial community and the media may be organised in order to present the interim financial results and the Company’s strategies.

Any changes to the above calendar will be immediately announced to the market and the Supervisory Authorities. Further information or clarification can be obtained by contacting Acea’s Investor Relations, tel. +39.06.5799.1, e-mail investor.relations@aceaspa.it.

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