- Trading materials, equipments relating to petroleum.

- Importing and exporting materials and  equipments used for production.

- Industrial construction.

- Petroleum retail and wholesale.

- Investing in construction, infrastructures for lease as industrial park and trading center.

- Purchasing truck.

- Others under the business license.

- October 22, 1975: Formerly known as Thong Nhat Mechanics Plant of Ministry of Materials, was established ;

- January 30, 1984: Renamed as 23/11  Mechanics Enterprise;

- December 17, 1992: Renamed as Petroleum Mechanical Enterprise;

- November 21, 1997: Renamed as Petroleum Mechanical Company.

- May 31, 1999: Renamed and transformed into Petroleum Mechanical Joint Stock Company;

- November 04, 2003: Traded on Ho Chi Minh Stock Exchange (HOSE) with charter capital of VND32 billion.;

- May 03, 2007: Increased charter capital to VND 52 billion;

- May 26, 2009: Delisted from HOSE and moved to listed on Hanoi Stock Exchange (HNX);

- December 19, 2011: Increased charter capital to VND 72 billion.