Financial Calendar

FINANCIAL CALENDAR

Athens, February 16, 2022 - Hellenic Telecommunications Organization S.A. ("OTE" or the "Company") announces, its 2022 Financial Calendar, pursuant to paragraphs 4.1.2.(1)(b) and 4.1.3.15.1 of the Athens Exchange Rulebook, according to which:

1. The Annual Stand Alone and Consolidated Financial Statements for the fiscal year 2021, prepared in accordance with the I.F.R.S, together with the table with the financial data and information deriving from said Financial Statements, will be released on Thursday, February 24, 2022 on the Company's website (https://www.cosmote.gr/cs/otegroup/en/investor_relations.html) and on the website of the Athens Exchange and will be published on the press on the day following their release.

2. The analysts' briefing on the full year 2021 financial results will take place on Thursday, February 24, 2022.

3. The Ordinary General Meeting of the Company's Shareholders will take place on Wednesday, May 25, 2022.

4. The ex-dividend date will be Friday, July 1, 2022. On that date, Company shares will be trading without the dividend right for year 2021. The ex-dividend date follows the expiry of derivatives (June series).

5. Beneficiaries of said dividend are those registered as Company's Shareholders on Monday, July 4, 2022 (Record Date).

6. Dividend payment will start on Thursday, July 7, 2022.

It is noted that: (i) the Company reserves the right to alter the above dates after timely informing investors of the amendment hereof and (ii) the Ordinary General Meeting of the Company's Shareholders is entitled to resolve differently on the above matters, in accordance with applicable legislation and the Athens Exchange Rulebook.

FOR FURTHER INFORMATION: