Admie S A: Information about the second stage of the tender for the sale of 20% of ARIADNE INTERCONNECTION S.P.S.A.

Address: 89 Dyrakhia and Kifisou Street, 104 43, Athens, Greece. Phone: (+30) 210 3636936. Email: [email protected]. Registration number: 141287501000.

Message about the second phase of the tender

Message about the second phase of the tender for the sale of 20% of the shares of "ARIADNE INTERCONNECTION S.P.S.A." We inform investors that“SOCIETE ANONYME ADMIE (IPTO) HOLDING”, operating under the name“ADMIE (IPTO) HOLDING S.A.”(orCompany), continues the tender process regarding the sale of a 20% special purpose stake.Ariadne Interconnection S.P.S.A.The second phase involves two business schemes:

joint ventureMeridiam Europe IV A SAS - PHAETHON Holdings Single Member Societe Anonyme
State Grid International Development Belgium Limited

CompaniesGEK TERNA S.A.previous nameGEK TERNA Societe Anonyme Holdings Real Estate Constructions) andTerna S.p.A.not participating in the second phase.

The main goal of the tender

The main goal is to receive financial proposals from the participating business schemes, which must be submitted byJune 21.After the submission of financial proposals is completed, the evaluation process will begin, carried out by the company.IPTO S.A.Ariadne Interconnection S.P.S.A.is a 100% subsidiaryIPTO S.A.and acts as the operator of electrical communication between Attica and Crete.

Details of the electrical connection between Crete and Attica

The electrical connection of Crete with the mainland (Attica Region) has a transmission capacity of1 GWand using direct current (DC) technology, is the largest and most complex electricity transmission project in Greece.

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Construction work on the project is expected to be completed within this year, with cable electrification scheduled for the end of2024 yearThe project is expected to be put into commercial operation inin the year 2025This will eliminate the island's energy isolation and ensure its energy security, complementing the work of smaller electrical connections.Crete-Peloponnese.

Electric communication helps reduce production costs and improve the environmental situation, as well as the quality of electricity supplied to Crete.

Athens, May 15, 2024. This message has been published.ADMIE (IPTO) HOLDING S.A.In accordance with the Market Abuse Regulation (EU) 596/2014 and the Athens Stock Exchange Regulation. The information pertains to the concept of inside information as defined in Article 7 and subsequent articles of Regulation (EU) 596/2014, as well as Article 27, paragraph 8 of Law 4443/2016.