FINANCIAL CALENDAR

Athens, March 1, 2017 – The Hellenic Telecommunications Organization S.A. (OTE S.A. or Company), releases, its 2017 Financial Calendar, pursuant to paragraphs 4.1.2.1.(b) and 4.1.4.3.1 of the Athens Stock Exchange Regulation, according to which:

Koropi, Greece, March 1^st, 2017: IDE (INTRACOM Defense Electronics) after an international bidding process which brought together companies from the ten (10) countries participating in the ESSM consortium, has won the contract for the design and development of electronic units for the Block 2 improved version of the surface-to-air ESSM missile (Evolved SeaSparrow Missile).

The company IKTINOS HELLAS SA, announces that following the decision of the Extraordinary General Meeting of the Shareholders of the Company at 20.12.2016, purchased, own shares through the Athens Exchange member Euroxx Securities.  On 28.2.2017 the Company purchased 1.300 shares, with average price EUR 0,8613 per share and a total purchase price EUR 1.119,71.