Taiyuan Satellite Launch Center

The Taiyuan Satellite Launch Center (TSLC) also known as Base 25 (Chinese: 二十五基地), is a People's Republic of China space and defense launch facility (spaceport). It is situated in Kelan County, Xinzhou, Shanxi Province and is the second of four launch sites having been founded in March 1966 and coming into full operation in 1968. Taiyuan sits at an altitude of 1500 meters and its dry climate makes it an ideal launch site. The site is primarily used to launch meteorological satellites, Earth resource satellites and scientific satellites on Long March launch vehicles into Sun-synchronous orbits. TSLC is also a major launch site for intercontinental ballistic missiles and overland submarine-launched ballistic missile (SLBM) tests.

The site has a sophisticated Technical Center and Mission Command and Control Center. It is served by two feeder railways that connect with the Ningwu–Kelan railway.