1, Taiyuan Railway Bureau Engineering Corporation: Taiyuan Railway Bureau Engineering Corporation's business includes railroad engineering construction, railroad maintenance, railroad parts manufacturing is one of the three units of the Taiyuan Railway Bureau.
2, Taiyuan Railway Bureau of Shanxi TaiTie Economic Development Company Limited: Taiyuan Railway Bureau of Shanxi TaiTie Economic Development Company Limited, the main business includes real estate development, hotel management, catering services, conference services, merchandising and so on.