- On June 1, 1989: Gia Lai Electricity JSC, formerly known as Gia Lai – Kon Tum Hydropower Company, was established.
- On April 20, 1994: The enterprise was renamed Gia Lai Hydropower Company.
- On October 24, 1995: The company was renamed Gia Lai Electricity Company.
- On September 9, 2010: GEC was equitized and renamed Gia Lai Electricity Joint Stock Company according to Business Registration Certificate No. 5900181213.
- On June 6, 2012: Increased charter capital to VND 522,871,860,000.
- On August 29, 2014: Increased charter capital to VND 601,302,280,000.
- On August 11, 2015: Increased charter capital to VND 721,560,970,000.
- On November 11, 2015: Increased charter capital to VND 744,903,390,000.
- On March 21, 2017: First trading day on UPCoM with a reference price of VND 20,000 per share.
- On September 11, 2019: Delisted from UPCoM.
- On September 19, 2019: First trading day on HOSE with a reference price of VND 27,490 per share.
- On November 4, 2020: Increased charter capital to VND 2,202,022,690,000.
- On November 13, 2020: Increased charter capital to VND 2,711,751,880,000.
- On October 11, 2021: Increased charter capital to VND 3,037,155,260,000.
- In July 2022: Increased charter capital to VND 3,219,369,020,000.
- In December 2022: Increased charter capital to VND 3,861,369,020,000.
- In July 2023: Increased charter capital to VND 4,054,494,010,000.
