This 131-kilometer project was initially approved in 2004 with an estimated investment of VND 7,663 billion (approximately USD 300 million), funded by government bonds. It broke ground in 2008 and was expected to be completed by 2011.

However, in 2011, the project was listed among those to be delayed or suspended under the government's public investment reduction policy (Resolution No. 11/2011/NQ-CP). Since then, construction has been completely halted.

The Ministry of Construction has now requested that the Railway Project Management Board assess a proposal from Vingroup Group to invest in the Hanoi - Quang Ninh railway line, and evaluate the potential to combine this investment with the Yen Vien - Pha Lai - Ha Long - Cai Lan route. The aim is to make full use of infrastructure already built or partially completed.

The management board is also tasked with developing and evaluating investment scenarios for two speed options: 160 km/h and 300 km/h. These studies will help determine the most efficient investment plan, including proposed investment methods and any required mechanisms or policy adjustments.

The ministry's directive requires submission of the adjusted pre-feasibility study report by May 6, 2025, for review by higher authorities.

According to the original design, the railway will use dual-gauge track (1,435 mm and 1,000 mm), continuous welded rail, modern signal systems, and grade-separated crossings with national highways. The line was designed to accommodate passenger train speeds of up to 120 km/h and freight speeds of up to 80 km/h.

Once completed, travel time for passenger trains between Ha Long and Yen Vien would be reduced to just 1.5–2 hours, and freight journeys would take about 3–4 hours.

N. Huyen