Qingdao Hansen Biologic Science Co., Ltd., approved by Qingdao Municipal Government, was established in 2002, which engages in R&D of bio-pesticide, production of technical materials, preparation combination, sales promotion, and technical service. With its economic indicators ranking in top 15 in China and top 3 in Shandong, the company is elected as a specialized farm chemical producer designated by National Development and Reform Commission, Key Hi-tech Enterprise of Torch Program, Qingdao ...