en.Wedoany.com Reported - Thailand has set a target completion date of 2030 for the first phase of the Bangkok-Nakhon Ratchasima high-speed railway, a 250 km section. The decision was made following Thai Prime Minister Anutin Charnvirakul's five-day visit to China in July 2026. The line is designed for a maximum speed of 250 km/h, and project monitoring data from Asianews.network for 2026 shows a current completion rate of 55.27%.

The project is a Thai high-speed railway being built in two phases, planned to connect Bangkok to Nong Khai, with further extensions to Laos and Kunming. Phase one covers the Bangkok-Nakhon Ratchasima section, spanning 250 km, with construction commencing in 2017. Phase two, the Nakhon Ratchasima-Nong Khai section, is in preparation, but direct services to China will require the completion of this extension as well as a connection crossing the Mekong River. The Thai project forms the middle segment of the planned Kunming-Singapore corridor (totaling 3,900 km), which is not a continuous high-speed railway but rather a series of independently built projects by different countries, adopting varying standards and speeds. The Laos section has already connected Vientiane to the Chinese border, with a maximum operating speed of approximately 160 km/h. The total project investment has not been disclosed in the original source or verified data.
Compared with similar projects, the Thai phase one is designed for a speed of 250 km/h, while the existing Laos-China railway has a maximum speed of approximately 160 km/h, meaning the link will not operate as a unified high-speed railway. Broader corridor freight data shows: in 2025, rail freight volumes from China to Southeast Asia saw significant growth (benefiting from tariff reductions and policy agreements), while China-to-EU rail freight volumes declined again, with Germany-to-China freight volumes dropping by 25% (source: RailFreight.com, January 2026; source: Upply, 2025). The overall Chinese rail freight market is expected to expand at a compound annual growth rate of 4.1% through 2036, with freight volumes in the first 11 months of 2025 growing 2.7% year-on-year (source: Future Market Insights, 2025). As of the time of writing, comparable project-level construction costs or per-kilometer cost data for the Thai line have not been made public.
The 2030 completion target covers only the first phase, the 250 km Bangkok-Nakhon Ratchasima section, and a timeline for the full corridor's completion was not included in this announcement. Freight data indicates that China-to-Southeast Asia rail volumes are rising, while China-to-EU volumes are contracting. Based on a completion rate of 55.27%, approximately 112 km of the first phase remains to be built, and no publicly reported construction progress is available for phase two.
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