A 257-kilometer railway route connecting Cambodia and Vietnam will cost US$686 million, not including compensation to be paid to people that the project will displace.
The Vietnam News Agency quoted a Cambodian press release as saying Thursday the route would run between Kampong Speu in Cambodia and Tay Ninh Province in Vietnam.
While the project awaits approval from Cambodian Prime Minister Hun Sen, officials have not said if the country can afford its costs, the news source reported.
Since July 2009, a feasibility study for the project has been carried out by a company under China's Ministry of Railways
In 2008, China had pledged $500 million for the project that is expected to benefit Cambodia economically, especially promoting its agriculture and mining sectors.
The route would be part of a longer rail link between Singapore and Kunming in China, expected to be completed in 2020.