Currently, the Thai-Chinese high-speed railway system (Phase 1: Bangkok–Nakhon Ratchasima Section) is under construction. Of the total 14 civil work contracts, construction is ongoing under 10 contracts and is being prepared for the remaining four contracts. With respect to the railway system and procurement of rolling stocks which are under one contract, work is in the designing process.

Contract 1-1
Klang Dong–Pang Asok Section
Length : 3.5 kilometers
Contractor : Department of Highways
