- 04 November 1998: Hanoi Entertainment Services Corporation was established in accordance with the Decision No.3800/GP-UB issued by Hanoi City People's Committee;
- 1999: Granted with the land use right certificate for 6.4ha land lot in Tay Ho district;
- 19 May 2000: Inaugurated Ho Tay Water Park;
- 02 July 2000: Inaugurated New Sun Park (Formerly Vang Trang Park);
- 2010: HASECO Communication and Event Center was established;
- May 2013: HASECO Travel Center was established;
- Since 07 December 2016: Traded on UPCOM market;