First factory was established in 1970’s in Taiwan, Changhua County.

Established 2nd factory in Shenzhen City in 1990.

Established 3rd factory in Dongguan City in 2004.

Established 4th factory in Shandong Province, Dezhou City in 2008.

Established 5th factory in Jiangsu Province, Nantong City in 2012.

Established 6th factory in Vietnam Binh Duong Province, in 2016.