May 2023 Contract 3-5 Khok Kruat – Nakhon Ratchasima Section
Progress as of 25 May 2023: 4.20%
The Cooperation between the Government of the Kingdom of Thailand and the Government of the People's Republic of China on Bangkok–Nong Khai HSR Development for Regional Connectivity (Section 1: Bangkok–Nakhon Ratchasima)