Eleventh Interest Payment Period of the Common Bond Loan of MOTOR OIL (HELLAS) S.A.

MOTOR OIL (HELLAS) CORINTH REFINERIES S.A. (the “Company”) hereby announces that according to the terms of the Common Bond Loan issued by the Company on 23.03.2021 (the “CBL”), the record date for the bond holders entitled to the amount of interest of the eleventh coupon corresponding to the period from 23.03.2026 until 23.09.2026 is Tuesday September 22, 2026.

As of Monday September 21, 2026 (ex-coupon date) the notes issued by the Company will trade on Euronext Athens without the right for the collection of the amount of interest of the eleventh coupon of the CBL.

The aggregate gross amount of interest of the eleventh coupon of the CBL, corresponding to 200,000 notes currently traded in the organized market of the Euronext Athens, equals 1,942,222.22 EUR, that is 9.7111111111 EUR for each note of nominal value 1,000 EUR, and has been calculated at an annual interest rate of 1.90% (before tax) on a 360 day basis (Actual/360).

The payment of the interest due amount to the entitled bondholders (the “Bondholders”) will be effected through Euronext Securities Athens S.A. on Wednesday September 23, 2026 as follows:

1. Through the S.A.T. Participants (Banks and Brokerage/Securities firms), for the Bondholders who have provided authorization to their Participants regarding collection of monetary distributions according to the provisions of the S.A.T. Operation Regulation of the Euronext Securities Athens S.A.
2. Especially in cases of coupon interest payments to the legal heirs of deceased Bondholders whose notes are kept a) in the Special Account of their S.A.T. ID under Euronext Securities Athens S.A. custody, according to section X part 2 of the S.A.T. Operation Regulation of the Euronext Securities Athens S.A., or/and b) in a securities/brokerage firm under liquidation or in a special provisional transfer account, the payment will be made a) at the Euronext Securities Athens S.A. Headquarters at 110 Athinon Avenue, Athens, daily on working days from 09:00 until 16:00 for a period of one year from the commencement of the coupon interest payment date, or by the means of deposit to a bank account specified in writing by the legal heirs of the deceased Bondholders to the Euronext Securities Athens S.A., and b) through consignment in cash at the Consignment Deposits and Loans Fund (CDLF) made by the Euronext Securities Athens S.A.  after the lapse of one year. All charges and expenses related to the cash consignment arrangement (indicatively, and not exhaustively, rights and fees of the CDLF etc.) will be borne by the entitled heirs.

It is clarified that according to the current applicable legislation the right for the collection of the interest due amount expires on completion of a five year period from the end of the fiscal year in which this right was created (i.e. for the said interest of the eleventh coupon of the CBL the right for its collection expires on 31-12-2031) and following such time bar the uncollected amounts will irrevocably be reimbursed to the Hellenic State.

Maroussi, 14 September 2026