Vietnam has approved the Dong Dang-Tra Linh expressway construction project linking Lang Son and Cao Bang provinces as a BOT project with a total investment of VND 20.9 trillion. As per the new plan, its length was reduced from 144 km to 115 km, and the cross-section of this expressway was also reduced from 22 metres to 17 metres. The first phase of the project is expected to be implemented from 2020 to 2024 and the second phase will be implemented after 2025. The government has assigned the Cao Bang Provincial People’s Committee to sign project contracts with investors. Cao Bang Province invited the Deo Ca Group to participate in the project research under PPP.