Hyundai Merchant Marine is negotiating with U.S. retailer Walmart to ensure it continues to use South Korean shipping services. That battle may already be lost. Panjiva data shows the 18% of shipments handled by Hanjin Shipping for Walmart in the three months to July were likely won by MSC. The share held by MSC increased to 23% in the quarter to January 31 from 11% in July. That came after MSC started offering a replacement service all the way back in September.