Song May – Tan Uyen Line is a 500kV overhead line from Song May, Son La, Vietnam, to Tan Uyen, Binh Duong, Vietnam.

Construction works on the Song May – Tan Uyen Line started in 2019 and the project was commissioned in 2020.


The Song May – Tan Uyen Line, which is an overhead line, is being operated by National Power Transmission. The Song May – Tan Uyen Line is a new line. The line carries alternating current (AC) through double circuit cable.

Song May – Tan Uyen Line project development status

The development of the Song May – Tan Uyen Line project was approved by Electricity Regulatory Authority of Vietnam in 2019 and the project works were completed in 2020.

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By GlobalData

About National Power Transmission

National Power Transmission Company is established to supply safe, stable, reliable and continuous power transmission services, and ensuring power supply. The company is based in Vietnam.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.