- Planning investment projects, developing electricity.

- Making investment reports, investment projects. up bidding documents, bidding documents of power plants project.

- Documenting the environmental impact assessment.

- Making total cost estimates of works.

- Management of power source and power grid construction investment projects.

- Other businesses under business license.

- 1975: Originated from Power Design Department belonged to the Southern Power Company

- 1979: Established the Sub-institute of Power Design and Planning belonged to the Power Company No.2

- May 07, 1986: Renamed Energy Center.

- 1995: Transferred to Vietnam Electricity Group

- April 07, 1999: Renamed Power Engineering Consulting Company No.3

- January 26,2007: Equitized and renamed Power Engineering Consulting JSC No. 3.

- December 01, 2009: Officially traded on Hanoi Stock Exchange (HNX).

- July 21, 2017: Charter capital was raised up to VND48,68 billion.

- 2018: Increased charter capital to VND82.76 billion.