I am surprised that there is no mention of the Vietnam Communist Party Gensec Tho Lam visiting China, then took HSR from Beijing to Guangxi on his way back, clearly signaling his intent to build standard gauge linking with China's existing network.
If this were to happen, even if limited to just Northern Vietnam, would change SEA in so many ways. Northern Vietnam could be fully integrated into China's economic orbit. It would be a huge win.
China-Vietnam rail links have been reported on extensively.
On 19 December 2025, Vietnam’s Deputy Prime Minister and Minister of Foreign Affairs Bui Thanh Son pressed the ceremonial start button to launch the . The 390-kilometre railway, backed by in funding, marks a move into the ‘hard connectivity’ phase of the ‘China-Vietnam Community with Shared Future that Carries Strategic Significance’ vision.
But the project also carries complex strategic considerations. While this route follows the historical footprint of the Yunnan–Vietnam railway opened in 1910, the current project represents a critical upgrade within the ‘’ Initiative, connected to China’s Belt and Road Initiative. It is tasked with opening a major maritime gateway for southwest China, updating the eastern route of the and further integrating industrial and supply chains between China and Vietnam.