MOTOR OIL (HELLAS) CORINTH REFINERIES S.A. announces that its Board in its meeting dated 25 April 2025, pursuant to the relevant decisions of the Extraordinary General Assembly of 22 March 2023 and the subsequent authorizations to the Board, approved the transfer of 210,256 treasury stock shares to the personal investment accounts held by executives of the Company and the Group in the Dematerialized Securities System (S.A.T) as follows:

• An aggregate of 204,376 treasury stock shares will be transferred to eleven (11) executives of the Company and the Group who opted to exercise their stock options maturing in April 2025 to purchase Company shares at the Grant Price of EUR 16.56 per share.

• An aggregate of 5,880 treasury stock shares will be transferred to four (4) executives of the Company and the Group (they are included in the executives who will exercise their stock options) as stock award free of payment.

All above beneficiaries will get Company shares without retention obligation.

All share transfers mentioned above will be effected by the means of Over The Counter (OTC-FOP) transactions on Wednesday 30 April 2025 with same day clearance.

Furthermore, the Company Board in the same meeting mentioned above decided to suspend the current share buyback program only for the ATHEX session of Wednesday 30 April 2025 which is the date the transfer of the 210,256 Company shares will take place.

Maroussi, 28 April 2025

The Board of Directors