Deputy Prime Minister Trinh Dinh Dung on Monday inaugurated the Hai Van Road Tunnel 2 which is the longest road tunnel in Southeast Asia, connecting the central province of Thua Thien-Hue and Da Nang city.
Deo Ca joint stock Company has completed the drilling phase of Cu Mong tunnel between the two central coastal provinces of Binh Dinh and Phu Yen on January 18.
