- Constructing, installing, repairing transport, water supply and drainage, industrial and civil works.

- Producing and trading construction materials.

- Providing mechnical and electric services (M&E).

- 18 January 2000: 565 Transport Works Investment and Trading Company was established under the Decision No.129/2000/QD-BGTVT issued by Ministry of Transport;

- 31 August 2005: Transformed into 565 Joint Stock Company under the Decision No.3222 issued by Ministry of Transport;

- 2007: Charter capital was raised up to VND14,868,400,000;

- 10 August 2009: Charter capital was raised up to VND24,650,260,000;

- 21 May 2010: Charter capital was raised up to VND40 billion;

- 2013: Renamed as CII Engineering Joint Stock Company;

- 10 September 2013: Charter capital was raised up to VND150 billion;

- 15 January 2014: Charter capital was raised up to VND400 billion;

- 25 November 2016: Charter capital was raised up to VND415 billion;

- 05 April 2017: Became a public company under the Document No.1791/UBCKGSDC issued by the State Securities Commission of Vietnam;

- 08 May 2017: Listed on Ho Chi Minh Stock Exchange (HOSE);

- 15 May 2017: Traded on Ho Chi Minh Stock Exchange (HOSE);