Hanjin Shipping is South Korea's largest sea container-shipping firm and the world's seventh-biggest, with a 2.9 percent market share. So its woes threaten to derail the supply chains of global companies that need to send goods well in advance of the year's biggest shopping season. TVs, cars and sneakers sail about 10 days to reach Los Angeles from Asia, while they could take as many as 30 days to Rotterdam. Hanjin Shipping owns 59 of the 132 container and bulk ships in its fleet.