PPC S.A.

Transaction in Own Shares • Oct 30, 2025

Announcement – Regulated information

October 30, 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 23.10.2025 until 29.10.2025, PPC purchased through transactions in the Athens Exchange,84,304Own Shares in total, as follows:

Date	Number of Shares	Weighted Average Price (€)
23.10.2025	23,315	14.6514
24.10.2025	20,819	14.7600
27.10.2025	20,214	14.8415
29.10.2025	19,956	15.0335

Following the abovementioned purchases, PPC holds an aggregate of 19,929,200 shares issued by it, which correspond to 5.3969% 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.