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The transportation advisory firm said 2014 container volumes rose 5 percent on the westbound transpacific and 9 percent from Asia to Europe, but all North American export lanes struggled.
According to a statement from the port authority, all terminals were operating normally on Thursday.
Legal framework sets stage for expanding preclearance operations across borders.
The German ocean carrier said its financial results were impacted by costs from merger with Chilean liner CSAV.
ConAgra and Lululemon said they expect shipment delays for several more months as a result of West Coast port congestion.
The new container service will connect ports in China, Taiwan and South Korea with Mexico, Colombia, Peru and Chile.