Investment for Hà Nội urban railway project to increase by US$650m stockbot 0 272 2022.10.25 11:57 https://vietnamnews.vn/society/1348315/investment-for-ha-noi-urban-rai… + 22 https://vietnamnews.vn/rss/society.rss + 18 The reason for the increase is that the underground section was increased from 8.5 to 8.9km.