[Welding construction of China-Laos railway seamless track completed]On September 16, 2021, the welding construction of more than 400 kilometers of seamless track of the China-Laos Railway of China Railway Second Bureau was completed. Since the rail welding team of the China-Laos Railway Track Laying Base of China Railway Second Bureau broke ground in May 2020, the cadres and employees of the rail welding base have overcome the difficulties of construction sites and late equipment arrivals in the rainy season. They have passed through 75 tunnels, 165 bridges, 20 stations, which lasted 16 months, successfully completed the welding construction tasks of 500-meter long rails and seamless tracks on the whole line. Editor/Tian Zengpeng
On April 29, 2026, the Chongqing Guizhou Back to Back Interconnection Project (Guizhou side) started construction in Xishui, Zunyi. Southern Power Grid invested 580 million yuan and plans to put it into operation in June 2027. The project involves the construction of 87.9 kilometers of transmission lines and 179 iron towers, connecting the national and southern power grids. The project is located in the mountainous area of northern Guizhou, and needs to overcome karst geology and 352 crossing difficulties. After being put into operation, it will meet the annual growth demand of 6.4% and 7.8% of the load in Chongqing and Guizhou. Editor/Cheng Liting
On April 27, 2026, the cumulative sales volume of natural gas in the Sichuan Chongqing exploration area of Daqing Oilfield has exceeded 5 billion cubic meters, reaching 5.03 billion cubic meters, and the daily gas production has remained stable at 5.7 million cubic meters, injecting strong momentum into the construction of the Chengdu Chongqing economic circle and national energy supply guarantee. Editor/Cheng Liting