Piles of containers are stocked at the Ningbo-Zhoushan Port. [Photo/IC]

Zhong Da You 235 (front), an oil tanker of the Sinopec Zhejiang Zhoushan Petroleum Co refuels the Dong Tai Bao Ze  vessel (back) at the Mazhi Anchorage of Zhoushan on Aug 14, 2018. [Photo/IC]