ENEC is expected to apply for a separate operating license before it can operate the reactors as the current approval only covers the construction of the units.
State-controlled PTT and Aramco will each own 40 per cent of the project at Binh Dinh’s Nhon Hoi economic zone, with the Vietnamese government holding the remaining 20 per cent.
Oman’s State General Reserve Fund, Royal Dutch Shell and existing investors in GlassPoint will inject the money, which will be used to accelerate the deployment of solar steam generators.
Oman first agreed to buy gas from Iran in 2005, but price disagreements and Western sanctions that have stunted Iranian energy projects prevented any real progress.
The aluminium plant had experienced issues during the initial start-up phase last year when it had to shut one of its two smelting lines due to problems encountered during ramp-up.