Nantong Yongsheng Chemical Co., Ltd

The engineer Karl-Wilhelm Henn founded the company in February 1932 as "Karl-Wilhelm Henn Ingenieurbüro" with business premises in the Klockmannhaus, Kirchenallee, near the main railway station in the heart of Hamburg.

Lianyungang Debang Fine Chemical Co., Ltd. is located in Lianyungang City, the eastern bridgehead of the New Eurasian Continental Bridge, with convenient sea, land, and air transportation. The company was founded in 1958 at the former Hongqi Chemical

We are an agro-biotechnology company dedicated to the research, development, production and commercialization of environment friendly products for the protection and nutrition of agriculture.