Authorities of northern Lang Son province have proposed the Ministry of Construction to conclude the Lang Son – Thai Nguyen expressway into the national road network plan for 2021-2030, with a vision to 2050.

Under the proposal,  the expressway will have a total length of 120 km,  connecting the Dong Dang (Lang Son) - Tra Linh (Cao Bang province) expressway to the Thai Nguyen - Bac Kan expressway.

Total investment capital is estimated at VND29 trillion ($1.12 billion). Of the total, some VND18 trillion ($697 million) will be invested in the section running through Lang Son and VND11 trillion ($426 million) will be spent for the section through Thai Nguyen province.

The expressway will have four lanes and allow a maximum speed of 100 kph.

The project is scheduled to be implemented from 2026 to 2030.