Ahead of Xi's US visit, China's soybean crushers face high costs, weak margins
By Ella Cao, Naveen Thukral and Roberto Samora BEIJING/SINGAPORE/SAO PAULO Sept 7 (Reuters) - China's private soybean processors face a costly fourth-quarter supply squeeze as inventories tighten in top exporter Brazil and tariffs keep U.S. cargoes largely out of reach.