- Implementing the construction of civil and industrial power supplies, power grids and substations up to 500KV, traffic, and irrigation.

- Producing and hot dip galvanizing steel structures, and mechanical products.

- Manufacturing electrical accessories, centrifugal concrete poles and concrete products.

- Trading building materials.

- Conducting business in traveling, hotels, and restaurants.

- In 1988: Forerunner Concrete Enterprise centrifugal and electrical construction Vinh established in 1998;

- On July 11, 2003: Converted into Stock Company Power Construction 3.3 with a charter capital of VND 6 billion;

- In December 2005: Renamed as Corporation VNECO 3;

- On February 4, 2007: Increased capital to VND 10 billion through the issuance of bonus shares and new shares in proportion 20:9;

- On May 9, 2007: Increased capital to VND 16.5 billion through the issuance to existing shareholders and employees in the company;

- On February 16, 2008: Raised charter capital to VND 13 billion;

- On June 30, 2010: Shares of companies listed and traded on HNX.