Hubei WEIDUN Biotech CO.,LTD（formerly Tianmen chengxin chemical CO.,LTD） is a professional manufacturer which takes natural grease as raw materials to produce fatty acids and the derivatives. The main products include oleic acid, stearic acid, vegetable pitch, dimer acid, polyamide resin ,monomer acid,etc.

The company has modern production workshops .For oleic acid production, it ows one distillation process line and one freezing process production line. Moreover, it also has a dimer acid production lines as well as a polyamide resin one.The annual yield of various types of oleic acid is 30000 tons, stearic acid 10000 tons , dimer acid 12000 tons and polyamide resin 10000 tons .All Products are produced in strict accordance with the international quality requirements. What is more,a series of items related with the products such as research , procurement, produce, testing, sales and marketing services are strictly supervised to guarantee products of high quality and technical support to our customs.

The Company has been awarded as People's government of tianmen city observing contract heavy credit enterprise,the AAA level credit enterprise,top 12 of Tianmen industrial enterprise .

The Products won characteristics of agricultural products in the 4th Wuhan agriculture exposition,China.

Our company adheres to the philosophy of credit oriented, moral top to realize mutual benefits and we are looking forward to cooperation with you.