Operations Aboard Hapag-Lloyd AG's Ulsan Express Container Ship [Getty Images]

A police harbor patrol boat passes the Ulsan Express, operated by Hapag-Lloyd AG, at the HHLA Hamburg Container Terminal Altenwerder in the Port of Hamburg in Hamburg, Germany, on Tuesday, June 3, 2014. Hapag-Lloyd AG recently agreed to buy most of Chilean rival Cia. Sud Americana de Vapores SA's assets and become the fourth-largest container shipping company in the world. Photographer: Krisztian Bocsi/Bloomberg via Getty Images

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