National Highway 4B

Technical traffic opening for the upgraded Km18–Km80 section of National Highway 4B through Lang Son.

Báo Tin Tức

19/12/2025

With 100% of the land available, Lang Son is determined to complete the upgrading of National Highway 4B in 2025.

Báo Xây dựng

26/03/2025

Land acquisition is hindering the progress of the National Highway 4B upgrade project through Lang Son.

Báo Xây dựng

14/01/2025