- 19 June 1997: Nam Dinh Environment Company was established under the Decision No.762/QDUB issued by Nam Dinh Provincial People's Committee;
- 18 December 2007: Transformed into Nam Dinh Environment One-Member Limited Company under the Decision No.3133/QD-UBND issued by Nam Dinh Provincial People's Committee;
- 07 March 2016: Nam Dinh Provincial People's Committee issued the Decision No.439/QD-UBND on approving the equitization plan of Nam Dinh Environment One-Member Limited Company;
- 06 May 2016: Initial Public Offering (IPO) was launched at average winning bid of VND10,103 per share;
- 01 August 2016: Put into operation under the model of a joint stock company with an initial charter capital of VND21,944,750,000;
- 11 October 2016: Became a public company under the Document No.6819/UBCK - GSDC issued by the State Securities Commission of Vietnam;
- 11 August 2017: Traded on UPCOM market;