The Port of Piraeus is the chief sea port of Athens, located on the Saronic Gulf on the western coasts of the Aegean Sea, the largest port in Greece and one of the largest in Europe.

China COSCO Shipping Corporation Limited, abbreviated as COSCO Shipping, is a Chinese state-owned multinational conglomerate headquartered in Shanghai. The group is focused on marine transportation services. COSCO Shipping was established in January 2016 by the merger of COSCO Group and China Shipping Group.