Hubei Weidun Bio-technology Co., Ltd. (primary Tianmen Chengxin Chemical Co., Ltd.) is a professional manufacturer of fatty acids and derivative products taking natural oil as material. Major products are oleic acid, stearic acid, vegetable pitch, dimer acid, polyamide resin and monomer acid.

Our company was founded in March, 2004 in Hubei Tianmen Economic Zone, covering 80mu. It is within 1km to Tianmen Exit of SuiYue highway, at 2km of Zaomao provincial road, and 3km to Tianmen downtown.

There is modern plant and production of oleic acid rectification and freezing technique, and production line of dimer acid and polyamide resin. Annual output of various products: 30000 tons of oleic acid, 10000 tons of stearic acid, 12000 tons of dimer acid and 10000 tons of polyamide resin. We strictly control each procedure in research, purchasing, manufacturing, analysis and marketing strictly according to world standards. And we provide superior product and technical support for users.