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 3-2
Railway tunnels at Muak Lek and Lam Takhong

Length : 12.23 kilometers

Contractor : Nawarat Patanakarn Public Company Limited

Progress : 77.09%

Progress

- August 2024

- July 2024

- June 2024

- May 2024

- April 2024

- March 2024

- February 2024

- January 2024

- December 2023

- November 2023

- October 2023

- September 2023

- August 2023

- July 2023

- June 2023

- May 2023

- April 2023

- March 2023

- February 2023

- January 2023

Progress as of 25 August 2024: 77.09%