- Collecting untoxicated waste.

- Dredging domestic septic tanks.

- Tending urban plants and trees.

- Dredging urban sewerage system.

- 14 October 1994: Tu Liem Urban Environment Enterprise was established under the Decision No.2573/QD-UB issued by Hanoi City People's Committee;

- August 1995: Came into operation;

- 01 April 2014: Became a Tu Liem Urban Environment Enterprise Branch under Hanoi Urban Environment Limited Company;

- 31 December 2014: Initial Public Offering (IPO) was launched at Hanoi Stock Exchange (HNX) with an average winning bid of VND10,000 per share;

- 06 June 2015: Hanoi City People's Committee issued the Decision No.2491/QD-UBND on transforming Tu Liem Urban Environment Enterprise Branch under Hanoi Urban Environment Limited Company into a joint stock company;

- 06 July 2015: Put into operation under the model of a joint stock company with a charter capital of VND60 billion under the business registration certificate No.0106893917 issued by Hanoi Department of Planning and Investment;

- 30 December 2015: Became a public company;

- 10 May 2016: Traded on the UPCOM market;