Core Viewpoint - The shipping and port sector is experiencing a rebound, with notable increases in stock performance for companies like Ningbo Shipping and Nanjing Port, which have both achieved two consecutive trading limits [1] Group 1: Market Activity - Container shipping activities from China to the United States have been gradually increasing since early June [1] - Shipping rates for containers from China and East Asia to the U.S. West Coast surged by 94% in the past week [1] Group 2: Company Performance - Ningbo Shipping and Nanjing Port have both shown significant stock performance, achieving two consecutive trading limits [1] - Other companies such as Lianyungang, Ningbo Ocean, HNA Technology, and Chongqing Port have also seen rapid increases in their stock prices [1]