Its new Loop 7 will improve connections between Scandinavia and Asia, alliance member Hapag-Lloyd said.
Gothenburg and Antwerp have been added to the rotation, which already has European stops in Hamburg, Gdansk and Southampton before its return to Asia.
APL, Hyundai Merchant Marine, Mitsui OSK Lines, Nippon Yusen Kaisha and Orient Overseas Container Line are the other alliance members.
