- Trading houses, housing services.

- Building civil and industrial works.

- Leveling.

- Trading construction materials.

- Other activities under the business license.

- October 10, 2003: De Tam Joint Stock Company was established with an initial charter capital of VND2.5 billion.

- April 2006: Increased the charter capital to VND15 billion.

- May 2007 : Established branch in Nhon Trach, Dong Nai province with its charter capital up to VND40 billion.

- July 2008: Broke ground for DETACO urban area in Phuoc An Award, Nhon Trach, Dong Nai.

- May 2009: Established DETACO real estate trading floor in Dong Nai.

- September 2009: Increased the charter capital to VND100 billion.

- July 16, 2010: Company's stock was listed and traded on HOSE.

- December 28, 2016: Increased the charter capital to VND150 billion.

- September 13, 2018: Increased the charter capital to VND172 billion.

- July 03, 2020: Increased the charter capital to VND180,598,320,000.