In collaboration with Hamburg Süd and ZIM, Grand Alliance members Hapag-Lloyd, NYK and OOCL have decided to upgrade their tonnage deployed in the Transatlantic Service between Europe and North America East Coast. From March 2012 instead of four 3,700 TEU vessels, four 5,400 TEU ships are then to come into operation. As hitherto, Hamburg Süd and ZIM will each provide one vessel and Grand Alliance two. The weekly fixed-day service continues to have the port rotation: Rotterdam – Hamburg – Le Havre – Southampton – New York – Norfolk – Charleston – Rotterdam