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Company History

2014.01   Shanghai Sino Insulation Material Co.,LTD was awarded as¡°Shanghai High-tech Enterprises¡±


2013.09  based on ¡°the Internet of Things¡±,the logistic center for all insulations

         are into operation.Its aim is to achieve faster distribution and faster



2013.08  DEAN GROUP & Rigon Instruments Italy venture Rigon Instrument Asia.It is

         in charge of all instrument business in Asia.

         New headquarter was builded in Pudong Chuansha .The branch Shanghai BYT

         Testing Service Co.,LTD is set up,which provide the third party service

         to customers.


2013.07  DEAN GROUP & Hongkong DeTai International Shareholding Co.,Ltd signed

         Cooperation agreement.Hongkong DeTai Becomes the second shareholder


2013.04  DEAN GROUP set up.It includes 5 business units, respectively are Instrument  

      division,Insulation division,Third-party Testing division,Oversea division

      and Supply-chain division.

2012.11  Shanghai Dean Electrical Co.,Ltd was awarded as ¡°Shanghai High-tech



2012.09  We (Shanghai Sino Insulation Material Co.,LTD) got three UL system

         Certification (F,H,N CLASS)


2011.11  We (Shanghai Dean Electrical Co.,Ltd) got the National Invention Patent for ¡°Dielectric loss testing instrument for enamel wire¡± 


2009.09  The production line for insulation laminate paper are into operation


2007.04  Company moved to new zoban business garden building,which is in Gold bridge

         Development zone


2005.06  Midea company become the first customer on instruments  field .


2005.06  We got the UL certification for silicone insulation sleeving


2004.12  We (Shanghai Dean Electrical Co.,LTD) successfully invent Enamel Wire  Dielectric Loss Testing Instrument


2004.11  The production line for insulation sleeving is into operation Shanghai Sino Insulation Material Co.,Ltd set up,which are mainly in charge of production and sales business.


2003.07  Shanghai Dean Electrical Co.,Ltd set up.We begin to R&D enamel wire

         test instrument.


2001.03  Company moved to office building in Fuhua garden in Lujiazui.


1999.09  Shanghai Siyuan Trade Company was founded in Shanghai Yu¡¯an Building by

         Pierre Ye.