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The Korean liner company said it will continue to serve the Pacific Northwest region from Seattle.
The port says terminals may extend hours for another month to deal with pre-Lunar New Year volumes.
According to the London-based shipping consultancy, reduced costs and focus on operational efficiency will offset the large amount of capacity entering the global fleet in 2015.
Marine terminal officials agree that future contracts will require ongoing collaboration.
Maersk Line CEO Soren Skou told American Shipper container lines need to adapt to permanent overcapacity, and cited Maersk's network management as the primary driver of bumper profits in recent years.
Economist revised forecasts, predicting lower import growth and a second year of declines in exports.