Dayun Group Co., Ltd. (formerly Shanxi Tongda (Group) Co., Ltd. was founded in 1987, and is located in Yuncheng Economic Development Zone of Yuncheng City, Shanxi Province. It is a large-scale private enterprise group with cross regional, cross industry and diversified development integrating commercial vehicles, motorcycle research and development, manufacturing, sales, services and international trade, real estate development, logistics distribution and engineering construction, It ranks among the top 500 private enterprises in China and the top 100 private enterprises in Shanxi Province. The group has more than 10000 employees and total assets of 20billion yuan. It has four production bases, namely Yuncheng, Chengdu, Shiyan and Guangzhou. The products are exported to all parts of the country and more than 100 countries and regions such as Asia, Europe, Africa and America.