Vietnam, located in the east of Indochina Peninsula in Southeast Asia, has a long and narrow terrain, excellent light resources, and annual sunshine hours of 1600-2700. It has good conditions for the development of photovoltaic industry. In recent years, Southeast Asian countries represented by Vietnam have adapted measures to local conditions, vigorously developed the clean energy industry, promoted the transformation and upgrading of local energy structure, and continuously accelerated. Low carbon and sustainable new energy economy has gradually become a new "spring" for the development of Southeast Asian countries.

Recently, the largest photovoltaic power station in Southeast Asia, the yuan Thien EA sup project in Vietnam, has gradually emerged in front of the world. The project has been completed in two phases with a total installed capacity of 2.8gw. The first phase is 831mw. Longji has supplied 273mw high-efficiency and reliable single-sided hi-mo 4 series components. It is understood that the first phase of the project has been connected to the grid on November 15. It is estimated that by the beginning of 2022, the project will become an important component of the local power supply system after all the projects are completed and connected to the grid, which can provide 5 billion kwh of clean power for Vietnam every year.