- Construction of industrial, public, residential and other constructions.

- Construction of irrigation, hydroelectric and traffic works.

- Construction of electric lines and transformer stations up to 500 KV.

- Other activities under business license.

- 1963: Established as Concrete Workshop to implementing Thac Bai Hydropower plant;

- 1994: Renamed as Song Da No.7 Company;

- January 01, 2006: Equitized and renamed as Song Da No.7 Joint Stock Company. Its charter capital was VND15 billion;

- December 25, 2006: Listed on HNX (Ticker: SD7);

- 2007: Increased the charter capital to VND90 billion;

- March 2016: Increased charter capital to VND106 billion.

- May 25, 2018: Delisted from Hanoi Stock Exchange;

- June 01, 2018: Traded on UPCOM market;