Crews of Tian Xi vessel line up during a welcome ceremony at Qingdao Port in Qingdao, east China's Shandong Province, Sept.17, 2019. Tian Xi vessel of China's COSCO Shipping Specialized Carriers Co., Ltd. has arrived at Qingdao Port after wrapping up a voyage through the Arctic shipping route. Returning from Finland's Helsinki, Tian Xi vessel has transported nearly 30,000 tons of high-quality paper pulp back to China. (Xinhua/Li Ziheng)