- Producing and trading clean water.

- Providing consultation and construction services in water supply and sewerage works.

- 17 March 2005: Clean Water Investment Construction and Trading Joint Stock Company was established with a charter capital of VND40 billion under the business registration certificate No.0101624050 issued for the first time by Hanoi Department of Planning and Investment;

- 2015: Renamed as VIWACO Joint Stock Company;

- 25 October 2010: Charter capital was increased up to VND80 billion;

- 30 December 2016: Became a public company;

- 26 July 2017: Traded on UPCOM market;

- 30 October 2018: Charter capital was increased to VND160 billion;