- Build hydraulic works, irrigation systems, hydroelectric works, transportation roads, harbors, civil works.

- Produce, exploit and trade construction materials.

- Trade materials, equipments for irrigation.

- Consultancy and investment services for construction work .

- Other businesses under business license.

- 19/11/1979: Hydraulics Construction Corporation No.4 Joint Stock Company was formerly known as  Association of Zone IV Irrigation construction Factories;

- 1/1/1995: Renamed Association of Zone IV Irrigation construction Factories as Construction Corporation No.4;

- 05/09/2005:The corporation was renamed as Hydraulics Construction Corporation No.4 (TL4);

- 01/01/2009:Company was transfered into joint stock company;

- 28/11/2009: Became Hydraulics Construction Corporation No.4 Joint Stock Company;

- Decmeber 03, 2008: Transformed into a Joint Stock Company with an initial charter capital of VND85.785.000.000.

- May 04, 2010: Increased charter capital to VND111.396.330.000.

- June 24, 2011: Increased charter capital to VND134.997.680.000.

- December 18, 2012: Increased charter capital to VND160.083.380.000.

- February 04, 2015: Traded on UPCOM market.