- Constructing technical infrastructure, civil and industrial works.

- Trading real estate.

- Providing real estate management services.

- October 18, 1959: Established from two companies namely Ha Bac Nitrogenous Fertilizer Company and Hanoi Northern Architecture Company;

- 1993: Construction Company No.4 was established under the management of the Ministry of Construction;

- December 26, 2005: Ministry of Construction issued the Decision No.2370/QD-BXD on equitizing and transforming Construction Company No.4 into Investment and Construction Joint Stock Company No.4;

- December 2006: Became a public company;

- February 09, 2006: Put into operation under the model of a joint stock company with a charter capital of VND45 billion;

- December 03, 2008: Charter capital was raised up to VND90 billion;

- April 06, 2010: Charter capital was raised up to VND133 billion;

- August 09, 2011: Charter capital was raised up to VND160 billion;

- July 28, 2017: Traded on UPCOM market;

- December 22, 2020: Increased charter capital to VND320 billion;