Henan Huihuang Technology Co., Ltd. was established in 2001, and its predecessor Zhengzhou Huihuang Technology Co., Ltd. was established in 1994. The company has a total of 12 subsidiaries, including six wholly-owned, one holding, four equity, and one partnership, with its headquarters located in Zhengzhou High tech Industrial Development Zone. The company is one of the first high-tech enterprises and software enterprises recognized in Henan Province, and also the first listed enterprise in the field of domestic rail transit communication signals. The company takes serving rail transit as its responsibility and has been focusing on the research and promotion of rail transit measurement and control technology for 26 years. It is a leading provider of complete solutions for the rail transit industry in China, providing technical support and service guarantees for the construction and safe and efficient operation (transportation) of national railways, urban rail transit, and enterprise owned railways.