Jingzhou Haidi Fine Chemical Co., Ltd.as founded in May 1999. It is a limited company which mainly involves in the development and production of fine chemicals, fine chemical industry equipments installation and technical service. The main products: inorganic tin series, PCB organic protective film. The materials used in chemical tubes, container polyurethane corrosion resistant coatings and thermal protective. Anhydrous tin tetrachloride is one of the inorganic tin series products and the annual productivity can be 2,000tons/year. It adopts micro steam dry filtration technology and the technical level can be the leading place in the same field. The enterprise started the production of Anhydrous tin tetrachloride since 2000. There has never been any accidents till now without three kinds of main wastes. It has no effect to the environment safety. The number of the employees can be 51 and 27 of them are production employees, 8 of them are technical. All the project technical work on the production line. The operation are strictly carried out according to the safety rules which guarantee the safety of the production.