April 2001, Chongqing ZEIN Pharmaceutical Co., Ltd. established.
November 2005, Chongqing Dinglian Pharmaceutical Co., Ltd. established.
April 2010, our orlistat was initially approved by CFDA.
March 2010, merging Chongqing Sang Tian Pharmaceutical Co., Ltd.
July 2011, Approval and establishment of postdoctoral research station in Chongqing.
In August 2012, we merged Chongqing Ding Lian Pharmaceutical Co., Ltd., as a branch.
January 2013, merged with Chongqing Chongqing human drug research and Development Co., Ltd.
September 2014,appraised as the national high-tech enterprise.
January 2014, Chongqing Liangjiang pharmaceutical research and Development Center Co., Ltd. was set up, as the medical transformation center.
September 2015, Construction of CMO base (API & FDF)
September 2015, Chongqing Liujiang Pharmaceutical Technology Co., Ltd. (providing pharmaceutical CRO services for generic drugs and innovative drugs)
March 2017, Chongqing Gerui Medical Clinical Research Center Co., Ltd. was established in (to provide bioequivalence test, phase I clinical research services).
July 2017, Chongqing MAH Medical Management Co., Ltd founded (the first MAH company outside headquarter .
July 2017, Chongqing Ding Lian Pharmaceutical Co., Ltd. (affiliated), was renamed Chongqing Zein Taihao Pharmaceutical Co., Ltd.
December 2017, Chongqin Jinfeng Pharmaceutical Co., Ltd. found, as affiliated of ZEIN Pharm.