- Constructing electric transmission lines, transformer stations up to 500KV.

- Construction of hydroelectric, irrigation, transport and post works.

- Construction and installation of water supply systems for urban and industrial areas.

- Other activities under business license.

- 1961: Established

- 2002: Renamed as Song Da No.11 Company

- 1973: Upgraded to M&E site.

- 1976: Change of name to Enterprise of Water Electric Installation.

- 1989: Moved into Electrical and Water Erection Company.

- 1993: Renamed Energy Construction Company.

- 2002: Renamed as Song Da Company 11.

- August 17, 2004: The company was equitized and changed its name to Song Da 11 Joint Stock Company.

- December 14, 2006: Traded on Hanoi Stock Exchange (HNX).

- October 06, 2020: Increased charter capital to VND219.71 billion.