Butt-Welding Pipe Fittings
- 2014.07 - Commenced a three-day exhibition of American Semiconductor
- 2013.05 - Employee stock option certificates is applied for approval by Securities and Futures Bureau.
- 2012.12 - Establish Rotina DAJA Tiger-Vac Taiwan Co., Ltd. with NTD 9,600,000.
- 2012.07 - Establish Daikawakenn Technology Co., Ltd. with NTD 20,000,000.