A Maersk Line/Hamburg Sud service linking the U.S. East Coast with ports in Australia and New Zealand will switch calls from Savannah to Charleston in September, according to a note from the German line. The 10-ship service will have a revised rotation of Philadelphia, Charleston, Cartagena, Balboa, Auckland, Sydney, Melbourne, Port Chalmers, Timaru, Napier, Tauranga, Auckland, Manzanillo (Panama), Cartagena, and Philadelphia. Both Maersk and Hamburg Sud provide five s...