The PanStar Acro has begun South Korea’s government-backed trial voyage through the Northern Sea Route, entering Arctic waters nine days after departing Busan New Port on Aug. 22. The vessel is carrying 737 twenty-foot-equivalent units (TEUs), a standard measure of container capacity, and is expected to leave the Arctic Ocean around Sept. 7–8. The voyage is intended to test the commercial potential of a route 35% shorter than the Suez Canal passage, although high operating costs, limited cargo and geopolitical risks remain obstacles. The ship is scheduled to call at Felixstowe in Britain, Rotterdam in the Netherlands and Gdans.