- Construction and installation of telecommunication works.

- Supplying of consultancy and designing services for construction projects.

- Supplying of real estate services.

- Other under business license.

- 1954: Telecommunication Construction Development Joint Stock Company, formerly known as Post Construction Company, was established;

- 1966: Ranked as class I enterprise in the construction sector.

- 1996: Became a member of Vietnam Posts and Telecommunications Corporation;

- 30 November 2004: Ministry of Posts and Telecommunications issued the Decision No.59/2004/QD-BBCVT on the equitization of Post Construction Company;

- 11 January 2006: Telecommunication Construction Development Joint Stock Company came into operation under the model of a joint stock company with a charter capital of VND50 billion under the business registration certificate No.0100683141 issued by Hanoi Department of Planning and Investment;

- 2007: Became a public company;

- 26 September 2017: Traded on the UPCOM market;