- Designing and manufacturing steel structure, steel piles, pre-manufactured house frames and other mechanic products.

- Galvanizing and zinc-plated services.

- Assembling electric resource work, electric net system, 500KV electric transformer substation, industrial, civil and irrigational works.

- Others under business license.

- August 31, 2001: The company, originated from Da Nang Steel Structure Manufactory, belonging to Electricity Assembly Company No.3 was established;

- September 01, 2004: The company transformed to Da nang Steel Structure Manufacture Joint Stock Company with the chartered capital of VND7.5 billion;

- January 17, 2006: The company renamed as Steel Structure Manufacture Joint Stock Company (VNECO.SSM);

- 2007: Increased chartered capital to VND9.97 billion;

- 2007: Increased chartered capital to VND27.5 billion;

- November 17, 2008: Officially traded on Hanoi Stock Exchange (HNX).

- 2013: Increased charter capital to VND55.01 billion.