Oxiranphex was founded at Yumaogou, Liaoyang in 2001 by Prof. Jianmin Zhu and Prof. Conggang Zhong to purify polyethylene glycols (PEGs) for Pharmaceutical Industry. Currently, 100 tons/Year Polysorbate 80 (Injectable) process was built in the new plant with our in-house adsorption chromatography refining technology.
