ATTA BANK : ANNOUNCEMENT REGARDING THE ADMISSION AND COMMENCEMENT OF TRADING OF 16,541,878 WARRANTS OF ATTICA BANK S.A. ON THE WARRANTS SEGMENT OF THE REGULATED SECURITIES MARKET OF ATHEX.

Athens, 04.10.2021

ANNOUNCEMENT REGARDING THE ADMISSION AND COMMENCEMENT OF TRADING OF 16,541,878 WARRANTS OF ATTICA BANK S.A. ON THE WARRANTS SEGMENT OF THE REGULATED SECURITIES MARKET OF ATHEX.

Attica Bank S.A. ("Bank"), following the announcements of 21.09.2021 and 29.09.2021, in the context of the implementation of the provisions of article 27A of Law 4172/2013 ("DTC") along with the relevant provisions of the Cabinet Act 28/06.07.2021, as amended by the Cabinet Act 34/25.08.2021 (jointly "PYS"), announces that:

1. The Bank's Board of Directors at its meeting held on 04.10.2021 decided the admission on the regulated market of the ATHEX, the trading and the conversion into ordinary shares of the Bank, of the 16,541,878 warrants of the Bank, issued in the context of DTC (the
   "warrants"), based on the following timetable and on the PYS' provisions:

Date	Event
6 October 2021	Commencement of warrants' trading period.
14 October 2021	End of warrants' trading period.
19 October 2021	Date of warrants' conversion into new ordinary shares and
	cancellation of the warrants.

1. The Listings and Market Operation Committee of the ATHEX at its meeting held on 04.10.2021,approved the admission to trading (under the condition of the prospectus' approval by the Hellenic Capital Market Commission based on the Regulation (EU) 2017/1129, as such prospectus has been already approved today) and on 6th October 2021 the warrants' trading on the Warrants Segment of the Regulated Securities Market of the ATHEX is expected to commence.

The Warrants, on the commencement date of their trading, will be credited in the securities accounts, kept in the Dematerialized Securities System, of the beneficiaries.

This translation is unofficial and is intended solely, on a non-reliability basis and as a convenience, to the non-Greek-reading public. For any questions related to the accuracy of the information contained in the translation, please refer to the Greek version of the document which is the official and prevailing version. Attica Bank S.A. shall not be responsible, in any manner, for direct, indirect, special or consequential losses or any other kind of damages howsoever arising out of the use of this translation.

PV: 3086819.2

The Warrants will be traded with an ISIN code GRR000000069 and codes OASIS ΑΤΤΤΠ in Greek and TATTW in Latin. The initial purchase price of the warrants is set at their exercise price, 9.18 euro per warrant.

The warrants are kept and transferred as per the regulations and the procedures of the ATHEX on which they are admitted to trading.

On the date of conversion of the warrants, i.e., on 19.10.2021, the Warrants shall be automatically converted into ordinary shares of the Bank, at a ratio of one warrant per one share, based on the PYS' provisions. The new shares of the Bank, which will arise as a result of the warrants' conversion, will be admitted to trading on the Main Market of the Regulated Securities Market of the ATHEX. The Bank will publish an updated announcement regarding the admission to trading of the shares.

The warrant holders may address to the Subdivision of Financial Markets and Capital Markets Operational Support / Custody Department, Mutual Funds and Register of shareholders regarding more information (tel. [phone] και 210-3669571).

ATTICA BANK S.A.

This translation is unofficial and is intended solely, on a non-reliability basis and as a convenience, to the non-Greek-reading public. For any questions related to the accuracy of the information contained in the translation, please refer to the Greek version of the document which is the official and prevailing version. Attica Bank S.A. shall not be responsible, in any manner, for direct, indirect, special or consequential losses or any other kind of damages howsoever arising out of the use of this translation.

PV: 3086819.2