- Constructing civil and technical works.

- Constructing housing works.

- Levelling sites.

- 20 July 1994: Yen Thai Construction Enterprise was established under the Decision No.507/QD-UB issued by Bac Thai Provincial People's Committee;

- July 2000: Renamed as An Thinh Limited Company;

- 01 March 2004: Transformed into An Thinh Joint Stock Company with a charter capital of VND7.54 billion under the business registration certificate No.1303000019 issued by Bac Kan Department of Planning and Investment;

- 29 August 2005: Charter capital was raised up to VND15.34 billion;

- 09 January 2008: Charter capital was raised up to VND26.64 billion;

- 30 June 2009: Charter capital was raised up to VND41.64 billion;

- 15 December 2010: Charter capital was raised up to VND75.64 billion;

- 01 November 2012: Charter capital was raised up to VND76.84 billion;

- 12 May 2016: Charter capital was raised up to VND138.84 billion;

- 01 December 2016: Became a public company;

- 25 August 2017: Traded on UPCOM market;