The Governments of Ho Chi Minh City (HCMC) and Dong Nai province are collaborating on major infrastructure projects to enhance regional connectivity and support Long Thanh International Airport, which is set to open in 2026. A key initiative under discussion is a metro line linking Tan Son Nhat Airport in HCMC to Long Thanh Airport.
The provinces are coordinating with central ministries on multiple strategic transportation projects, including the Bien Hoa–Vung Tau Expressway, expansion of the HCMC–Long Thanh–Dau Giay Expressway, Ring Roads 3 and 4, Cat Lai and Long Hung bridges, and an extended metro line from Ben Thanh–Suoi Tien to Long Thanh Airport spanning 41 km with an estimated investment of USD2.45 billion. Additional projects include new green bus lines and a proposed National Highway 51C to reduce congestion.
Currently, over 45 transport links exist between HCMC and Dong Nai, but National Highways 1 and 51 are under heavy pressure. Officials highlighted the need for synchronised planning, streamlined land clearance, and consistent compensation frameworks between the two jurisdictions.