Thessaloniki Port Authority S.A.

Pre-Annual General Meeting Information • Oct 10, 2025

THESSALONIKI PORT AUTHORITY SOCIETE ANONYME (ThPA SA)

TRADE REG. NO. 42807/06/Β/99/30 GEMI No. 58231004000

Registered Office: Thessaloniki

INVITATION

TO THE EXTRAORDINNARY GENERAL MEETING OF SHAREHOLDERS

The Board of Directors of the Company with the corporate name «ORGANISMOS LIMENOS THESSALONIKIS SOCIETE ANONYME» [THESSALONIKI PORT AUTHORITY S.A.] and the distinctive title OLTH S.A. [ThPA S.A.] (LC Reg. No. 42807/06/Β/99/30, Company's Reg.No. 58231004000), with registered offices in Thessaloniki, hereby

I n v i t e s

its Shareholders, according to Law and to the Articles of Association of the Company and its decision dated 09.10.2025, to the Extraordinary General Meeting to be held on Friday, October 31st 2025, at 14:00 p.m., at the Company's headquarters in Thessaloniki (within the Port, Pier A', P.C. 54625, Administration Building of ThPA), which will take place remotely via teleconference in real time and without the physical presence of shareholders, provided by the Articles of Association of the Company article 11 par.4 and pursuant to article 125 of law 4548/2018, for discussion and decision-making on the following items of the agenda:

A G E N D A I T E M S

• 1. Approval of the amendment of the Company's Suitability Policy of ThPA BoD members
• 1. Approval of the amendment of the Company's Remuneration Policy of ThPA S.A.
• 1. Pre-approval of payment of remuneration and compensation of the members of the Board of Directors and the Committees of the Board of Directors for the fiscal year 2025

Should the quorum required by law for lawful convening on the items of the agenda is not reached, a Repetitive General Meeting will convene on Tuesday, November 11th, 2025, at 14:00 p.m., at the Company's headquarters from a distance in real time via teleconference, without publishing a new invitation according to par. 2 of article 130 of Law 4548/2018. Pursuant to Articles 121, 123, 124 par.6, 125, 128 and 141 of Law 4548/2018, the Company informs the shareholders on the following:

A. Right to participate and vote in the Extraordinary General Meeting

At the Extraordinary General Meeting of October 31st, 2025, entitled to participate and vote are only the physical and legal persons that have the status of shareholder at the start of the fifth (5th) day before the meeting date of the Extraordinary General Meeting, that is on October 26th, 2025 ("Record Date").

The record date of October 26th, 2025, is the record date in the case of the Repetitive General Meeting on November 11, 2025 (if the quorum, as required by the Law for lawful convening on any of the items of the original agenda is not reached on 31.10.2025).

For the Company, shareholder who is entitled to participate in the Extraordinary General Meeting and to exercise the right to vote is the one that is registered on the Record Date in the Dematerialized Securities System (DSS) of the company "HELLENIC CENTRAL SECURITIES DEPOSITORY (ATHEXCSD)" or the one identified as such based on the relevant date through registered intermediaries or other intermediaries in compliance with the provisions of the legislation (Law 4548/2018, Law 4569/2018, Law 4706/2020 and Regulation (EU) 2018/1212) as well as the Rulebook of Operation of the "HELLENIC CENTRAL SECURITIES DEPOSITORY" (Government Gazette B/1007/16.03.2021).

Proof of shareholder status can be delivered by any legal means and in any case based on information received by the Company or a certificate or other form of certification from the C.S.D. registry or through intermediaries as the case may be.

A shareholder may participate in the Extraordinary General Meeting based on confirmations or notifications of Articles 5 and 6 of Regulation (EU) 2018/1212 provided by the intermediary, unless the Meeting refuses this participation for a good reason that justifies its refusal in accordance with the provisions in force (art. 19 par. 1 of Law 4569/2018, art. 124 par. 5 of Law 4548/2018).

Exercising these rights does not require either the blocking of the shares of the beneficiary or any other similar procedure, which limits the option to sell and transfer these shares during the period between the Record Date and the Extraordinary General Meeting.

Shareholders that do not comply with the deadline in par. 4 of article 128 of Law 4548/2018, that is they did not submit in writing or by electronic means the appointment of proxies or representatives to the Company, at least forty-eight (48) hours before the appointed date of the Extraordinary General Meeting, can participate at the Extraordinary General Meeting, unless the Extraordinary General Meeting refuses this participation for good reason which justifies this refusal.

B. Participating and exercising the right to vote at the Extraordinary General Meeting remotely in real-time by teleconference

In order for shareholders to participate and vote at the Extraordinary General Meeting on October 31st 2025 or at any Repetitive meeting which will take place remotely, in real-time by teleconference by electronic means, without their physical presence, they or their representatives must create and use an electronic shareholder or representative account at the electronic platform that has been developed by the Athens Exchange Group to provide remote General Meeting services, in real-time, by teleconference to listed companies on the website: https://axia.athexgroup.gr/en/home

The internet platform is provided by company "HELLENIC CENTRAL SECURITIES DEPOSITORY", while for the teleconference the platform ZOOM of tools/services provided by Zoom Video Communications Inc is used.

In order to access the electronic platform a personal computer or a smartphone or a tablet is required, with a browser installed and internet access.

In order for a shareholder or his/her representative to create an account in the electronic platform above, a valid electronic mail (email) account and a mobile telephone number are required by the shareholder or his/her representative.

If, on accessing the electronic platform the above information entered by the shareholder do not match the information registered in the Dematerialized Securities System and notified to the Company by the Hellenic Central Securities Depository, or through intermediaries, in the context of its services to facilitate shareholder identification in general meetings from a distance that it provides to listed companies according to Part 3 of the number 8 decision of the BoD of Hellenic Central Securities Depository SA «Technical terms and procedures for the provision of the Registry Service, Corporate & Other Related Transactions " as well as the form "Terms and Conditions for the remote General Meeting of Shareholders", shareholder must provide or update the information above, in order to create the account.

For this purpose, the shareholders are requested to immediately contact the Participant of the Securities Account at DSS or another intermediary acting as custodian of the shareholder through which their shares are kept, in order to disclose and/or update their valid email address and mobile phone number for identification.

Further instructions to participate at the Extraordinary General Meeting by teleconference will be posted on the website of the Company https://www.thpa.gr/general-meetings and will be sent by the Company via email to shareholders that have completed the above procedure and are eligible to participate at the Extraordinary General Meeting or any Repetitive meeting.

For any questions and for instructions, shareholders may contact the Treasury and Investor Relations Department of the Company by email to shares@thpa.gr or by telephone at +30 2310 593.335 or +30 2310 593.376 (daily between 08.00 and 16.00).

Furthermore, starting with the publication of the present until the end of the Extraordinary General Meeting, information and support will be provided to shareholders and their representatives on issues related to the conduct of the Extraordinary General Meeting through the AXIA e-Shareholders Meeting (AXIA e-SM) platform (e.g. connection, voting, etc.) at tel. 210 3366426 or via email at:

AXIAeShareholdersMeeting@athexgroup.gr

On the date of the Extraordinary General Meeting the Shareholders who wish to participate should log in via the Internet Platform at least fifteen minutes (15΄) prior the start time of the Extraordinary General Meeting and state the number of voting rights with which they will participate at the Extraordinary General Meeting and vote, and - if they wish - to modify this number of voting rights, only to lesser voting rights.

Shareholders that participate at the Extraordinary General Meeting by teleconference in real-time are taken into consideration for the formation of the quorum and majority and will be able to exercise their rights effectively during the Extraordinary General Meeting.

Shareholders that have successfully connected to the internet platform will be able to participate in the Extraordinary General Meeting by teleconference in real-time via a link that will be sent to them by email.

By activating the teleconference application (ZOOM) through the link at the start of the Extraordinary General Meeting, shareholders will be able to:

a) follow the proceedings of the Extraordinary General Meeting with electronic or audiovisual means,

• b) take the floor and address the Extraordinary General Meeting orally during the Extraordinary General Meeting, while at the same time through the internet platform, they will be able to:
• c) vote in real-time during the Extraordinary General Meeting on the matters of the agenda, and
• d) receive information on the recording of their vote.

C. Procedure for the exercise of voting rights by representative

I. Shareholders participate in the Extraordinary General Meeting and vote either in person or through a representative. Each shareholder may appoint up to three (3) representatives. However, if a shareholder possesses shares of the Company that are held in more than one Investor Securities Account, the above restriction cannot prevent the shareholder from appointing different representatives for the shares in each investor account for a particular Extraordinary General Meeting. A proxy appointment can be freely revoked. A representative that acts for more than one shareholder can vote differently for each shareholder.

Shareholder may appoint a representative for one or more General Meetings and for a specific period of time. The representative votes in accordance with the shareholder's instructions, if there are any. Noncompliance by the representative with the instructions received does not affect the validity of the decisions of the Extraordinary General Meeting, even if the representative's vote was decisive in achieving the majority.

The shareholder representative is obliged to notify the Company, before the start of the Extraordinary General Meeting, about any specific event, which may be useful to shareholders in order to assess the risk that the representative may serve other interests besides the interests of the shareholder.

A conflict of interest may arise particularly when the representative is:

• a) a shareholder that exercises control of the Company, or other legal person or entity that is controlled by that shareholder,
• b) a member of the Board of Directors or in general of the management of the Company or a shareholder that exercises control of the Company, or other legal person or entity that is controlled by a shareholder, which exercises control of the Company.
• c) an employee or a certified auditor of the Company or a shareholder that exercises its control, or other legal person or entity that is controlled by a shareholder, which exercises control of the Company.
• d) a spouse or a relative in the first degree with one of the private individuals of the cases a) to c).

The appointment and revocation or replacement of the proxy or representative takes place in writing or by electronic means that are submitted to the Company at least forty-eight (48) hours before the appointed date of the Extraordinary General Meeting. Notification of the appointment and revocation or replacement of the representative by electronic means is by electronic mail at the email address on the Invitation to the Extraordinary General Meeting, or the case of shareholders that are identified through intermediaries, through confirmations or notifications of articles 5 and 6 of Regulation (EU) 2018/1212 provided by intermediaries.

ΙΙ. Specifically for shareholder participation by representative at the Extraordinary General Meeting of October 31st, 2025, or any Repetitive Meeting, remotely in real-time by teleconference, the shareholder or Participant in the Securities Accounts in the DSS or other intermediaries acting as custodians of the shareholder through which the shares are kept, can appoint up to one (1) representative, whose appointment must be made at least forty-eight (48) hours before the date of the

Extraordinary General Meeting (that is, by 14:00 p.m. on 29.10.2025 at the latest for the initial Extraordinary General Meeting and the latest by 14:00 p.m. on 09.11.2025 for the Repetitive Meeting).

Upon receipt of the information above by the Company and based on the email address and mobile telephone of the representative, as declared in the proxy document, the Company creates an account for the representative on the electronic platform; the proxy will be informed by email in order to activate the account in order to be able to exercise the rights of the shareholder in accordance with what is referred to in part B above.

The Company disposes available documents to appoint a representative to participate in the Extraordinary General Meeting of October 31st, 2025, remotely in real-time by teleconference.

The documents are available to shareholders in hard copy at the Treasury and Investor Relations Department of the Company (inside Port of Thessaloniki, Gate 11, Technical Services Building, 1st floor, P.C. 54625, Thessaloniki, Tel. +30 2310 593.335 or +30 2310 593.376), and in electronic form on the website of the Company: https://www.thpa.gr/general-meetings

The document must be filled-in, signed with the authenticity of the signature verified, and submitted to the Treasury and Investor Relations Department of the Company, at: Port of Thessaloniki, Gate 11, Technical Services Building, 1st floor, P.C. 54625, Thessaloniki, or digitally signed by using a recognized digital signature (with qualified certificate) by the proxy or shareholder by e-mail at shares@thpa.gr at least forty eight (48) hours before the date of the Extraordinary General Meeting. Shareholders are asked to ensure that the proxy appointment document is successfully dispatched and received by the Company and may call for this purpose: +30 2310 593.335 or +30 2310 593.376 (Treasury and Investor Relations Department).

The shareholder 's representative shall keep records of the voting instructions for at least one (1) year, from the date of the Extraordinary General Meeting or, in case of postponement, from the last repetitive Meeting for which he has used the proxy.

D. Rights of minority shareholders

Pursuant to article 141 of Law 4548/2018, shareholders are informed that they have, among others, the following rights:

• 1. Shareholders representing 1/20 of the paid-up share capital of the Company may:
• (a) request to include additional items in the Agenda of the Extraordinary General Meeting, provided that the request is communicated to the Board at least fifteen (15) days prior to the Extraordinary General Meeting, accompanied by a justification or a draft resolution to be approved by the Extraordinary General Meeting.

The revised agenda is published in the same way as the previous agenda thirteen (13) days prior to the date of the Extraordinary General Meeting and at the same time is made available to the shareholders on the Company's website, together with the justification or the draft resolution submitted by the shareholders according to the provisions of article 123 par 4 of Law 4548/2018. In case of not publication, the requesting shareholders are entitled to request the postponement of the Extraordinary General Meeting, in accordance with article 141 par. 5 of Law 4548/2018 and to make the publications themselves, in accordance with the second subparagraph of article 141 par. 2 of Law 4548/2018, at the expense of the Company.

(b) to submit draft resolutions for items that are included in the initial or any revised agenda of the Extraordinary General Meeting, through a request that must communicated to the Board of Directors at least seven (7) days before the Extraordinary General Meeting, and the draft decisions are made available to shareholders in accordance with the provisions of article 123 par. 3 of Law 4548/2018 at least six (6) days before the Extraordinary General Meeting.

The Board of Directors is not obliged to add items on the agenda or to publish or to disclose them together with justifications and draft resolutions submitted by shareholders in accordance with paragraphs a and b respectively, if their content is obviously in conflict with law or morality.

c) request the Chairman of the meeting, to postpone the taking of decisions by the Extraordinary General Meeting only once, on all or certain items, setting a day for the continuation of the meeting, as specified in the shareholder request, but said date cannot exceed more than twenty (20) days from the date of postponement.

The postponed Extraordinary General Meeting is a continuation of the previous one and does not require the resumption of the publication requirements of the ιnvitation for the shareholders. In that Meeting, new shareholders are entitled to participate, following all relevant participation requirements. Additionally, provisions of article 124 par.6 of Law 4548/2018 apply.

• 1. Any shareholder may request, provided that the said request is submitted to the Company at least five (5) full days prior to the Extraordinary General Meeting, the Board of Directors to provide to the Extraordinary General Meeting with the specific information regarding the affairs of the Company, insofar as such information is relevant to the items on the agenda.
• 1. Shareholders representing 1/10 of the paid-up capital of the Company may request, provided that the said request is submitted to the Company at least five (5) full days prior to the Extraordinary General Meeting, from the Board of Directors to provide to the Extraordinary General Meeting information on the course of the business affairs and financial status of the Company.

Detailed information regarding the above minority shareholders' rights and the specific conditions to exercise these rights, are available on the Company's website: https://www.thpa.gr/general-meetings/

E. Available Documents and information

The information of par. 3 and 4 of article 123 of Law 4548/2018 and in particular the Invitation of the Extraordinary General Meeting, the total number of shares and voting rights that the shares incorporate at the date of the invitation, the representative appointment forms, the documents to be submitted to the Extraordinary General Meeting and the draft decisions on the items on the agenda are available in electronic form on the Company's website (https://www.thpa.gr/general-meetings/) and in hard copy at the Treasury & Investor Relations Department, at the Port of Thessaloniki, Gate 11, Technical Services Building, 1st floor tel. +30 2310 593.335 or +30 2310 593.376, from where shareholders can receive copies.

Thessaloniki, October 9, 2025

THE BOARD OF DIRECTORS