PPC S.A.

Transaction in Own Shares • Nov 21, 2025

Announcement – Regulated information

November 21, 2025

Public Power Corporation S.A. ("PPC") announces that in the context of its buyback programme for the purchase of up to 36,927,000of its own shares, for the period from 13.11.2025 until 19.11.2025, PPC purchased through transactions in the Athens Exchange,89,150Own Shares in total, as follows:

Date	Number of Shares	Weighted Average Price (€)
13.11.2025	18,000	16.7209
14.11.2025	18,000	16.8362
17.11.2025	17,800	16.8509
18.11.2025	18,000	16.7257
19.11.2025	17,350	16.8973

Following the abovementioned purchases, PPC holds an aggregate of 20,210,943 shares issued by it, which correspond to 5.4732% of theCompany's total shares.

This announcement is issued in accordance with (EU) Regulation No 596/2014 of the European Parliament and of the Council dated 16.4.2014 and the Commission Delegated Regulation (EU) 2016/1052 dated 8.3.2016.

For further information please contact:

Investor Relations Division 30, Chalkokondyli str., 104 32 Athens

Τ: +30 210 529 2153

+30 210 529 3665

+30 210 529 3207

ir@ppcgroup.com

The announcement may be accessed on the website of Public Power Corporation S.A. (www.ppcgroup.com) at the "Investors Relations" section.