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 3-1
Kaeng Khoi – Klang Dong Section and Pang Asok–Bandai Ma Section
Length : 30.21 kilometers
Contractor : ITD - CREC No.10 Joint Venture Company Limited

Progress : 20.07%
Progress
- September 2025
- August 2025
- July 2025
- June 2025
- May 2025
- April 2025
- March 2025
- February 2025
- January 2025
- December 2024
- November 2024
- October 2024
- September 2024
- August 2024
- July 2024
- June 2024
- May 2024
- April 2024
- March 2024
- February 2024
- January 2024
- December 2023
- November 2023
Progress as of 25 September 2025: 20.07%