Greece, Bulgaria and Romania Sign Agreement on the Black Sea–Aegean Sea Corridor

Greece, Bulgaria, Romania and the EU have signed a cooperation agreement to develop the Black Sea–Aegean Sea cross-border corridor. This north–south route in Southeast Europe will integrate waterways (including the Danube River), railways, highways, sea and air ports, as well as multimodal terminals. The corridor will become part of the EU’s Trans-European Transport Network (TEN-T).

The project envisions three branches. The western branch will run through Athens, Thessaloniki and Promachonas in Greece; Kulata and Sofia in Bulgaria; and Craiova and Bucharest in Romania. The central branch will connect Thessaloniki/Alexandroupolis and Ormenio (Greece), Svilengrad and Ruse (Bulgaria), Giurgiu, Bucharest and Siret on Romania’s border with Ukraine, as well as Ungheni on the Romanian–Moldovan border.

The eastern branch will link Alexandroupolis and Ormenio (Greece) with Svilengrad, Stara Zagora and the ports of Burgas/Varna in Bulgaria, extending onward to the port of Constanța in Romania.

The agreement outlines shared objectives for implementing cross-border projects in line with EU technical standards, including ensuring operational interoperability, deploying the European Train Control System (ETCS), and enabling the circulation of 740-meter freight trains on cross-border routes.

According to the signatories, this approach will create an integrated multimodal transport infrastructure that ensures seamless movement of goods across national borders.

Tags: Bulgaria, Romania, Black Sea region, Greece