Announcement of Business Developments

Signing of Sale & Purchase Agreement

In accordance with Regulations (EU) 596/2014 of the European Parliament & Council and of the Athens Stock Exchange, ELLAKTOR SA (hereinafter the “Company”) announces the following :

Pursuant to the relevant approvals by the Shareholders of ELLAKTOR and MOTOR OIL at the Extraordinary General Meetings of August 25^th, 2022 and September 8^th, 2022 respectively, on a contract for the sale of shares was signed on 08.09.2022 between the companies ELLAKTOR and Motor Oil Renewable Energy Single Member S.A. (MORE), a 100% subsidiary of MOTOR OIL (HELLAS) CORINTH REFINERIES S.A. (MOH), regarding the transfer of ELLAKTOR's RES sector to a new legal entity, in which MORE will participate with a percentage of 75% and ELLAKTOR with a percentage of 25%.

Completion of the Transaction is expected by the end of the year and is subject to the completion of the RES sector spin-off, the approval of the Competition Commission and all other regulatory approvals.

Kifissia, September 9^th, 2022