Foreign investors, since 2013, have pumped $7.6 billion into Vietnam's largest private conglomerate Vingroup and its subsidiaries in the form of share acquisitions and loans.
The government will invite fresh tenders with lowered criteria for the North-South Expressway from local investors next year after ruling out foreign investors.
Vietnam is soliciting domestic and foreign investment in eight components of the North-South Expressway as it seeks to improve infrastructure for its robust economy.
