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          Chronicle of events

          2001~2010

          In April 2001Chongqing Zein Pharmaceutical Co., Ltd. was established

          In July 2002we obtained the approval number of “Donepezil Hydrochloride Tablets” 5mg specification

          In September 2003 we marketed the generic drug “Tropisetron Hydrochloride Injection”

          In November 2005we established Chongqing Dinglian Pharma Co., Ltd.

          In March 2010we consolidated and merged Chongqing Sangtian Pharma Co., Ltd.

          In April 2010we were the first enterprise to obtain the approval number of orlistat

          2001~2010

          2011

          In July 2011we were approved to set up a postdoctoral research workstation in Chongqing

          In November 2011we were awarded as a new drug design engineering technology research center in Chongqing

          In December 2011we were awarded as Chongqing chiral drugs enterprise engineering technology research center

          In December 2011we were awarded as Chongqing chiral drugs engineering technology research center

          In December 2011we were awarded as an engineering research center for innovative drugs and advanced drugs manufacturing technology

          2011

          2012

          In August 2012we consolidated and merged Chongqing Dinglian Pharma Co., Ltd.

          In October 2012we were awarded as a key high-tech enterprise of the National Torch Program

          In December 2012we established Dinglian Branch of Chongqing Zein Pharmaceutical Co., Ltd.

          In November 2012we obtained the approval number of “suplatast tosilate” exclusively

          2012

          2013

          In January 2013we consolidated and merged Chongqing Reben Drug R&D Co., Ltd.

          In May 2013we were the first enterprise that obtained the approval number of “ropinirole hydrochloride tablets”.

          In October 2013we were awarded as a national and local joint engineering research center

          In October 2013we were awarded as an engineering technology research center of Chongqing new drug design enterprise

          In December 2013“ropinirole hydrochloride tablets” was awarded as one of the “2013 top ten great prescription drugs in China”

          2013

          2014~2017

          In September 2014we were awarded as a national high-tech enterprise.

          In October 2014"orlistat" was awarded as a national key new product

          In November 2014we were awarded as an enterprise technology center in Chongqing

          In December 2017we established Jinfeng Branch of Chongqing Zein Pharmaceutical Co., Ltd.

          2014~2017

          2019~2020

          In February 2019“donepezil hydrochloride tablets” was the first to pass the consistency evaluation

          In July 2019our “orlistat”, “orlistat capsules” and “donepezil hydrochloride tablets” were awarded as the 2018 major new products in Chongqing

          In January 2020“donepezil hydrochloride tablets” (5mg) won the bid for the second national centralized procurement

          In June 2020we were awarded the approval number of “donepezil hydrochloride tablets (10mg)”

          In December 2020we were renamed as “Zein Biotechnology Co., Ltd.”

          2019~2020

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