- 15 May 2007: SeSan 4A HydroElectric Joint Stock Company was established;
- Nam 2008: Construction of Se San 4A Hydropower Plant was commenced;
- 2011: Se San 4A Hydropower Plant came into operation;
- 2013: Raised the charter capital from VND360 billion to VND422 billion;
- 26 April 2016: Listed on Hochiminh Stock Exchange (HOSE);
- 27 May 2016: Traded on Hochiminh Stock Exchange (HOSE);