2000 A.D. the establishment of Hongkong jeward

2001 A.D. research and development production tact switch

2001 A.D. research and development production Dip switch

2001 A.D. research and development production Slide switch 

2002 A.D. ISO9001 quality system certification

2005 A.D. full import ROHS

July  2009 A.D. Suzhou Chau-hua Electronics Co. Ltd.
       Set up new product development team and integrate domestic marketing team

2011 A.D.   Shanghai office was established

July 2011 A.D.  Become a qualified supplier of weidmueller Suzhou

 October 2011 A.D., Sany was certified as a qualified supplier

2012 A.D.  Shenzhen office was established

July 2014A.D.  Become KINGLONG /HIGER qualified supplier

July 2014 A.D. ad Eaton EATON/ audit as a qualified supplier

November 2014A.D.  The development of the automotive industry silica gel seal switch into                      the automotive industry 2 echelon supply chain

January 2015 A.D.   Establish  CHA-Hongye Technology (Shenzhen) Co., Ltd. 

September  2016 A.D.     Establish   CHA -Wit Large (Dongguan) Manufacturing Co., Ltd.

March 2016 A.D.    Import ISO9001 quality management system