Original: Hyundai Engineering and Construction Co., Ltd. (abbreviation: HDEC) is a major construction company in South Korea which has carried out projects not only in Korea but around the world. The company was founded by Chung Ju-yung in 1947 as the Hyundai Civil Works Company, and was a major component of the Hyundai Group.
Simplified: Hyundai Engineering & Construction Co., Ltd. (HDEC) was founded by Chung Ju-young in 1947 as the name of Hyundai Civil Works Company and a major company of the Hyundai Group.