What are the listed companies in Zhengzhou?

Yutong Bus, Sanquan Food. According to the Oriental Fortune Network.

Yutong Bus, headquartered in Zhengzhou, Henan Province, was listed on May 8th, 1997. The company is mainly engaged in the production and sales of buses, providing car maintenance services and inter-county fixed-line tourist passenger transport services.

2. Sanquan Food, listed on the Shenzhen Stock Exchange on February 20th, 2008, was established in 1992, and its headquarters is in Zhengzhou City, Henan Province. It is one of the earliest, large-scale and wide-ranging enterprises that produce frozen food in China.