2003 09    Shenzhen TopSourcing Technology Co., Ltd. established

2005 02    Renamed to Shenzhen TsaSun Technology Co., Ltd.

2008 06    Became an agent of TAI-TECH Advanced Electronics Co., Ltd.

2009 07    TSA (Shanghai) branch Established

2010 08    TSA (Hong Kong) branch Established

2010 09    TSA Factory Established in Shenzhen, produce power inductors & chokes.

2011 03    TSA(Dongguan) factory established and move factory from Shenzhen to Dongguang,

2012 04    Trademark “TSA” registered by TsaSun.

2012 07    ISO-9001 Certified at Dongguan factory

2013 03    TSA (Jiangxi) factory established

2014 10    Won the excellent Strategic partnership agents of Tai-Tech Advanced Electronics Co., Ltd ;

2016 06    Became an agent of Yeashin Taiwan ;