Hubei Wedun Biotechnology Co., Ltd. was established in March 2004, located in the Economic Development Zone of Tianmen City, Hubei Province, covering an area of 60 acres. In December 2019, it became a subsidiary of Zanyu Technology Holdings.

The company is a professional manufacturer of fatty acid derivatives from natural oils and fats, and has production lines for dimer acid and polyamide resins. In strict accordance with international quality requirements, the company controls the whole process of research and development, procurement, production, analysis and testing, sales and market services, and provides users with high-quality products and technical support. The main products are dimer acid, polyamide resin, monoacid And so on, the products are mainly sold to Guangdong, Fujian, Shandong, Jiangsu, Zhejiang, Shanghai and other places.