Chosun write:

Korea's No.1 Construction Company Samsung C&T and Korea's No.2 construction company Hyundai E&C chose cooperation over competition.

Both companies jointly bid at the Ulsan Redevelopment Plant in Korea and they won construction of Saudi Arabia's The Line Tunnel as a consortium.

https://biz.chosun.com/real_estate/real_estate_general/2023/04/19/JT3UAVSHIBBHDOSKFRUU6VPM4Y/