1991,

1994,

1997,

2000,

2002,

2003,

2004,
The First company was registered as a professional engineering service company named Yi Poung Engineering Slip-Form Services Co.,Ltd.
The second company was registered as a comprehensive construction company named as Hong Cheng Construction Co., Ltd. (HC.CC)
Grew more and was licensed as a B Grade construction company.

Implemented ISO quality management system and obtained ISO 9002 international quality certificate.
Expanded further to be licensed as an A Grade construction company.

Established another company named Colossus Development Co., Ltd. focusing on land developing and construting.
Installed Enterprise Resource Planning system.