- Generating and trading electricity.

- Managing, operating and maintaining hydropower works.

- Providing services of hydropower project management and construction monitoring.

- Trading materials and equipment in hydropower.

- Trading real estate properties.

- 15 September 1991: Construction of Vinh Son Hydropower Plant was commenced;

- 11 July 1994: Vinh Son Hydropower Plant under Power Company III was established under the Decision No.415NL/TCCB-LD issued by Ministry of Energies;

- 23 November 1995: Construction of Song Hinh Hydropower Plant was commenced;

- 03 July 2000: Renamed as Vinh Son - Song Hinh Hydropower Plant under the Decision No.163EVN/HÐQT-TCCB.DT issued by Vietnam Electricity Corporation;

- 02 December 2004: Ministry of Industry issued the Decision No.151/2004/QD-BCN on transforming Vinh Son - Song Hinh Hydropower Plant into Vinh Son - Song Hinh Hydropower Joint Stock Company;

- 04 May 2005: Put into operation under the model of a joint stock company;

- 07 July 2005: Traded on Hanoi Securities Trading Center;

- 18 July 2006: Traded on Hochiminh City Securities Trading Center;

- December 2007: Increased the charter capital to VND1,374,942,580,000;

- December 2009: Increased the charter capital to 2,062,412,460,000;

- February 26, 2021: Increased the charter capital to VND2,362,412,460,000;