By Chen Aizhu, Siyi Liu and Trixie Sher Li Yap Ships cannot dock, unload or receive shipping services Ban on ports including Qingdao, Rizhao and Yantai May slow imports, push up costs for refiners, traders say SINGAPORE/BEIJING, Jan 7 (Reuters) – Shandong Port Group has banned U.S.-sanctioned tankers from calling into its ports in the … Read more