PPC S.A. — Share Issue/Capital Change 2026

May 25, 2026

ppc

Announcement - Regulated information

Athens, 25.05.2026

IMPORTANT NOTICE - DISCLAIMER

THIS ANNOUNCEMENT IS NOT ADDRESSED TO, AND IS NOT INTENDED TO BE PUBLISHED OR DISTRIBUTED, DIRECTLY OR INDIRECTLY, IN OR INTO THE UNITED STATES, CANADA, AUSTRALIA, SOUTH AFRICA OR JAPAN.

ANNOUNCEMENT REGARDING (1) THE ADMISSION TO TRADING ON THE REGULATED MARKET OF EURONEXT ATHENS OF 228,126,677 NEW ORDINARY REGISTERED VOTING DEMATERIALISED SHARES WITH A NOMINAL VALUE OF €2.48 EACH OF PUBLIC POWER CORPORATION S.A. ISSUED PURSUANT TO A SHARE CAPITAL INCREASE THROUGH PAYMENT IN CASH AND WITH ABOLITION OF THE PREEMPTION RIGHTS OF THE EXISTING SHAREHOLDERS AND (2) USE OF PROCEEDS

Public Power Corporation S.A. (the "Company" or "PPC"), announces the commencement of trading on the Regulated Market of Euronext Athens as of 26.05.2026, of 228,126,677 new ordinary registered voting dematerialized shares of the Company of nominal value €2.48 each (the "New Shares"), issued pursuant to a share capital increase through payment in cash and the abolition of the preemption rights of the Company's existing shareholders, through (i) a public offering in Greece, in accordance with article 1.4 db) of Regulation (EU) 2017/1129, as in force (the "Public Offering"); and (ii) a private placement outside Greece, pursuant to the applicable exemptions from the obligation to publish or use a prospectus across borders, as provided for in the Regulation (EU) 2017/1129 and/or other provisions of national law of the relevant jurisdictions, including the United States of America under Rule 144A (the "Institutional Offering" and together with the Public Offering, the "Combined Offering"), as resolved by the Board of Directors of the Company on 16.05.2026 pursuant to the authorization granted to it by virtue of the resolution dated 14.05.2026 of the Extraordinary General Meeting of the shareholders of the Company (the "Share Capital Increase").

Following the Share Capital Increase, the share capital of the company amounts at €1,481,543,758.96, divided into 597,396,677 common, registered, voting, dematerialized shares, with a nominal value of €2.48 each. Pursuant to its resolution dated 25 May 2026, the Board of Directors of the Company certified the full payment of the amount of the Share Capital Increase.

Euronext Athens during its meeting held on 25.05.2026 approved the admission to trading of the New Shares on the Regulated Market of Euronext Athens.

The New Shares will have been credited to the share and the securities accounts of the shareholders which are held in the Dematerialized Securities System (D.S.S.)

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as at the date of commencement of their trading.

The net amount of funds raised through the Share Capital Increase amounting at approximately €4,122 million (out of approximately €4.250.0 million of total funds raised, after deduction of the issuance expenses of approximately €128 million) will be used, in accordance with the section "Purpose of the Offering and Use of Proceeds" of the Company's Annex IX document of Regulation (EU) 2017/1129 dated 18.05.2026 (the "Annex IX document"), by PPC and/or other Group companies or existing or future joint ventures between 2026 and 2030 as follows:

(a) to provide a portion of the approximately €16.7 billion the Company has budgeted for capital expenditures on its integrated business (including RES, retail, flexible generation and other activities) through 2030, including investments in solar, wind, hydro, storage and CCGT capacity across Greece, Romania and other CSEE markets, aiming to reach a total installed capacity of 24.3 GW by 2030;

(b) to provide a portion of the approximately €1.2 billion the Company has budgeted for capital expenditures on Phase I of its data center development in Kozani, targeting 300 MW capacity operational by the end of 2028;

(c) to provide a portion of approximately €1.6 billion for other investments including telecommunications, e-mobility and digitalization; and

(d) to the extent reasonably necessary and only up to amounts that are not material for the Group's financial condition, for other general corporate and other investment purposes, including providing optionality to capture attractive opportunities in the energy and technology sectors.

The capital expenditures under (a), (b) and (c) above are intended to be deployed to the relevant projects in the chronological order that the relevant projects are implemented at the Company's discretion following the completion of the Share Capital Increase.

As set out in the section "Purpose of the Offering and Use of Proceeds" of the Annex IX document, in the event that net proceeds of the Share Capital Increase are allocated to the above purposes through a Group company (other than PPC), a joint venture or a special purpose vehicle, such allocation will be made via an equity contribution or intragroup loan to any such entity by PPC, or via any other lawful means. Pending final application in accordance with the use of proceeds set forth above, the Company may opt to use such proceeds to engage in customary treasury, hedging and cash management operations in the ordinary course of business or make temporary investments in cash equivalents, time deposits, commercial paper, government securities or other highly rated

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instruments.

Furthermore, on 25.05.2026, the sale of 13,419,217 treasury shares was completed, representing approximately 3.63% of the Company's paid-up share capital (prior to the Share Capital Increase), at a price of €18.63 per share and for a total consideration of approximately €250.0 million. The transaction was executed off-market (OTC) through a private placement outside the Athens Exchange. Following the above transaction, the Company holds a total of 9,563,648 treasury shares, representing 1.6% of its total shares, as adjusted following the successful completion of the Share Capital Increase.

For further information please contact:

Investor Relations Division
30, Chalkokondyli str., 104 32 Athens
T: +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.

IMPORTANT NOTICE - DISCLAIMER

THIS ANNOUNCEMENT CONSTITUTES A PUBLIC DISCLOSURE OF INSIDE INFORMATION BY THE COMPANY UNDER ARTICLE 17(1) OF REGULATION (EU) NO 596/2014.

THERE CAN BE NO ASSURANCE THAT THE COMBINED OFFERING WILL BE COMPLETED OR, IF COMPLETED, AS TO THE TERMS ON WHICH IT WILL BE COMPLETED.

THIS ANNOUNCEMENT DOES NOT CONSTITUTE AN OFFER TO SELL OR ISSUE, OR ANY SOLICITATION OF AN OFFER TO PURCHASE OR SUBSCRIBE FOR, ANY SECURITIES, INCLUDING THE NEW SHARES, IN ANY JURISDICTION IN WHICH SUCH OFFER OR SOLICITATION IS UNLAWFUL. THE NEW SHARES HAVE NOT BEEN AND WILL NOT BE REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED (THE "U.S. SECURITIES ACT"), AND MAY NOT BE OFFERED OR SOLD IN THE UNITED STATES ABSENT REGISTRATION UNDER THE U.S. SECURITIES ACT OR AN APPLICABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE U.S. SECURITIES ACT. SUBJECT TO CERTAIN EXCEPTIONS, THE NEW SHARES MAY NOT BE OFFERED OR SOLD IN AUSTRALIA, CANADA, SOUTH AFRICA OR JAPAN OR TO, OR FOR THE

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ACCOUNT OR BENEFIT OF, ANY NATIONAL, RESIDENT OR CITIZEN OF AUSTRALIA, CANADA, SOUTH AFRICA OR JAPAN. THE SECURITIES REFERRED TO HEREIN HAVE NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OR UNDER THE APPLICABLE SECURITIES LAWS OF AUSTRALIA, CANADA, SOUTH AFRICA OR JAPAN.

IN THE EUROPEAN ECONOMIC AREA (THE "EEA"), THIS ANNOUNCEMENT IS DIRECTED ONLY AT PERSONS WHO ARE "QUALIFIED INVESTORS" WITHIN THE MEANING OF ARTICLE 2(E) OF REGULATION (EU) 2017/1129 (THE "PROSPECTUS REGULATION"). THIS ANNOUNCEMENT IS NOT A PROSPECTUS FOR THE PURPOSES OF THE PROSPECTUS REGULATION AND IS NOT INTENDED AND SHALL NOT CONSTITUTE A PUBLIC OFFER OR ADVERTISEMENT OF SECURITIES OR AN INVITATION TO MAKE OFFERS TO PURCHASE ANY SECURITIES WITHIN THE MEANING OF THE PROSPECTUS REGULATION. THIS ANNOUNCEMENT HAS BEEN PREPARED ON THE BASIS THAT ANY OFFER OF THE NEW SHARES IN ANY MEMBER STATE OF THE EUROPEAN ECONOMIC AREA ("EEA") (EACH, A "RELEVANT MEMBER STATE"), OTHER THAN IN GREECE, WILL BE MADE PURSUANT TO AN EXEMPTION UNDER THE PROSPECTUS REGULATION FROM THE REQUIREMENT TO PUBLISH A PROSPECTUS FOR OFFERS OF THE NEW SHARES. ACCORDINGLY, ANY PERSON MAKING OR INTENDING TO MAKE ANY OFFER IN THAT RELEVANT MEMBER STATE, OTHER THAN IN GREECE, OF THE NEW SHARES MAY ONLY DO SO IN CIRCUMSTANCES IN WHICH NO OBLIGATION ARISES FOR THE COMPANY OR ANY OF THE MANAGERS TO PUBLISH A PROSPECTUS PURSUANT TO ARTICLE 3 OF THE PROSPECTUS REGULATION OR SUPPLEMENT A PROSPECTUS PURSUANT TO ARTICLE 16 OF THE PROSPECTUS REGULATION, IN EACH CASE, IN RELATION TO SUCH OFFER. NEITHER THE COMPANY NOR THE MANAGERS HAVE AUTHORIZED, NOR DO THEY AUTHORIZE, THE MAKING OF ANY OFFER OF SECURITIES IN CIRCUMSTANCES IN WHICH AN OBLIGATION ARISES FOR THE COMPANY OR ANY MANAGERS TO PUBLISH A PROSPECTUS FOR SUCH OFFER.

IN THE UNITED KINGDOM ("UK"), THIS ANNOUNCEMENT IS DIRECTED ONLY AT PERSONS IN THE UK THAT ARE "QUALIFIED INVESTORS," AS DEFINED IN PARAGRAPH 15 OF SCHEDULE 1 OF PUBLIC OFFERS AND ADMISSIONS TO TRADING REGULATIONS 2024 (THE "POATR"), WHO ARE PERSONS (I) WHO HAVE PROFESSIONAL EXPERIENCE IN MATTERS RELATING TO INVESTMENTS FALLING WITHIN ARTICLE 19(5) OF THE FINANCIAL SERVICES AND MARKETS ACT 2000 (FINANCIAL PROMOTION) ORDER 2005, AS AMENDED (THE "ORDER"), (II) FALLING WITHIN ARTICLE 49(2)(A) TO (D) OF THE ORDER, AND/OR (III) TO WHOM SUCH INVESTMENT OR INVESTMENT ACTIVITY MAY OTHERWISE LAWFULLY BE COMMUNICATED (ALL SUCH PERSONS TOGETHER BEING REFERRED TO AS "RELEVANT PERSONS"). THIS ANNOUNCEMENT HAS BEEN PREPARED ON THE BASIS THAT ANY OFFER OF THE NEW SHARES IN THE UK WILL BE MADE PURSUANT TO AN EXEMPTION UNDER THE POATR FROM THE PROHIBITION IN THE POATR ON OFFERS OF THE NEW SHARES IN THE UK. ACCORDINGLY, ANY PERSON MAKING OR INTENDING TO MAKE ANY OFFER IN THE UK OF THE NEW SHARES MAY ONLY DO SO IN CIRCUMSTANCES IN WHICH THE OFFER FALLS WITHIN AN EXEMPTION FROM THE PROHIBITION ON PUBLIC OFFERS IN PART 1 OF SCHEDULE 1 TO THE POATR. NEITHER THE COMPANY NOR THE MANAGERS HAVE AUTHORIZED, NOR DO THEY AUTHORIZE, THE MAKING OF ANY OFFER OF SECURITIES IN THE UK IN CIRCUMSTANCES IN WHICH AN OBLIGATION MAY ARISE FOR THE COMPANY OR

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ANY MANAGERS TO PUBLISH A PROSPECTUS FOR SUCH OFFER.

PERSONS WHO ARE NOT "QUALIFIED INVESTORS" IN THE EEA OR RELEVANT PERSONS IN THE UK SHOULD NOT ACT OR RELY ON THIS ANNOUNCEMENT OR ANY OF ITS CONTENTS.