Changsha Public Transport Group, Liwei Zhongtian.

1. Changsha Public Transport Group: a state-owned and privately-owned municipal mixed-ownership enterprise, it is the only ground bus operator in the main urban area of Changsha, and it has four subsidiaries: operation, maintenance, station and wisdom.

2. Liwei Zhongtian: Founded in 2114, Liwei Zhongtian is a state-owned mixed ownership enterprise under Changsha Chengfa Group. It is a comprehensive state-owned holding enterprise specializing in intelligent system engineering design, construction and operation and maintenance, smart city planning, design and operation and maintenance, urban and road lighting engineering design and construction, stage sound lighting design and construction, software system platform research and development and operation, electronic product research and development and high-end manufacturing, and provides users with professional services.