Hellenic Telecommunications Organization S.A. at its Ordinary General Meeting of Shareholders of June 7th, 2023 approved the distribution of dividend amounting to €0.5765 gross per share. The final dividend amount that will be paid out stands at €0.58878 gross per share, increased by the dividend corresponding to 9,041,942 own shares that will be held by the Company on July 5, 2023 (ex-dividend date). The dividend is subject to a 5% withholding tax, in accordance with the applicable tax law provisions (art.

64 of Law 4172/2013 as in effect) with the exception or differentiation of such withholding for shareholders falling under special provisions. Therefore, the net amount of dividend which will be paid to Shareholders will be €0.559341 per share. On, July 5, 2023 the Company's shares will trade ex-dividend.

The payment of the dividend will be conducted on July 11, 2023.