Zhongshan Torch Hi-tech Industrial Development Zone

Zhongshan Torch Hi-tech Industrial Development Zone also known as Zhongshangang Subdistrict  or Zhangjiabian Subdistrict, is a national-level hi-tech industrial development zone in Zhongshan, Guangdong, China. Formerly the three subdistricts: THIDZ, Zhongshangang and Zhangjiabian were three separate subdistricts until they were merged in January 1993. The zone lies in the east of Zhongshan, with an area of 90 km2. Its population is about 238,500 in 2006.

It was jointly established by the Ministry of Science and Technology, Guangdong Provincial Government and Zhongshan Municipal Government in 1990. Several national-level enterprises have established industrial bases in the zone.