JIUSHAN DEVELOPMENT

• In January 2022, SanZheng new material factory relocation Jan 2022

• In June 1999, an import and export trading company was established 6 May 1999

• In August 2006, Qingdao Free Trade Zone trading company was established 8 May 2006

• In May 2007, the company was established and the first production line was put into production 5 May 2007

• In May 2008, the second phase of 2# production line was put into production successfully 5 May 2008

• In February 2009, established automobile sealing strip production company 2 May 2009

• In August 2012, the third phase of 3# production line was successfully put into production 8 May 2012

• In November 2013, the establishment of a wholly-owned trading company in South Korea 11 May2013

• In July 2014, the 1 # and 2 # rubber mixing production lines were all updated 7 May 2014

• In March 2015, rubber vulcanized products were put into production 3 May 2015

• In October 2016, rubber extrusion production went online 10 May 2016

• in January 2018, The group headquarters officially started construction in Shangma street, Chengyang District, Qingdao 1 May 2018