- Trading real estate, developing urban areas.

- Constructing civil, industrial and transport works.

- Providing real estate consultation, brokerage and auction services. 

- 10 March 2008: KOSY Joint Stock Company was established with an initial charter capital of VND120 billion;

- 14 July 2011: Charter capital was raised up to VND180 billion;

- 14 December 2015: Charter capital was raised up to VND350 billion;

- 04 May 2016: Charter capital was raised up to VND400 billion;

- 10 March 2017: Charter capital was raised up to VND415 billion;

- 27 September 2017: Became a public company;

- 08 December 2017: Traded on the UPCOM market; 

- 08 August 2018: Charter capital was raised up toVND1,037,500,000,000;

- 08 July 2019: Listed on Hochiminh Stock Exchange (HOSE);

- 15 July 2019: Cancelled the transaction registration on the UPCOM market;

- 22 July 2019: Traded on Hochiminh Stock Exchange (HOSE);

- February 25, 2021: Charter captial was raised up to VND1,650,313,350,000;