Group 1 - The completion of the new Chang Railway reconstruction project, undertaken by China Railway 24th Bureau, marks a significant milestone for the Su-Lian waterway, facilitating its full navigation by the end of October [1] - The Su-Lian waterway project spans approximately 124 kilometers, connecting the Grand Canal in Suqian to the Lianyungang Port, and is crucial for enhancing the comprehensive transportation system in Northern Jiangsu [1][2] - The reconstruction involved complex engineering tasks, including the relocation of railway bridges and the integration of various construction specialties such as tracks, bridges, and communication systems [1] Group 2 - The Su-Lian waterway serves as a vital transportation link for the inland regions of Northern Jiangsu, connecting to Lianyungang Port and facilitating sea-river intermodal transport [2] - Once fully operational, the waterway is expected to become a key channel for material transportation, promoting economic development in the coastal and inland areas [2]