XJ's intelligent power supply and utilization product series for rail transit dates back to the 1980s, covering high-speed rail, electrified railways, and urban rail transit sectors. XJ has participated in 100% of China's completed and ongoing high-speed rail projects, providing complete products and services for urban rail transit construction in cities such as Beijing, Shanghai, Guangzhou, Shenzhen, Zhengzhou, Wuhan, and Hangzhou. The independently developed TA21 integrated automation system won the National Science and Technology Progress Second Prize and has been successfully applied to many lines, including the China-Laos Railway internationally, providing strong support for Belt and Road construction.