- Official name: THE NATIONAL OIL SERVICES COMPANY OF VIETNAM LIMITED (OSC VIETNAM).
- Under the administration of: Ministry of Culture, Sports and Tourism.
- Member of: PATA, VITA, VISTA, VCCI.
- Establishment date: June 23rd, 1977 
- Head office: 02 Le Loi, Vung Tau City, Viet Nam. 
- General Director: Mr. THAI HONG CUONG

Main functions:

* Tourist services:
- Travel: organization of domestic and overseas tours.
- Accommodation: Chain of restaurants and 2-4 star hotels in Vung Tau
- MICE.
* Oil Services:
- Providing catering services to oil rigs.
- Providing technical tools and equipment for the exploration and exploitation of petroleum.
- Rental of villas, serviced residences, offices and transportation.
* Construction and Real Estate:
- Real Estate business.
- Construction of civil and industrial works.
- Installation of equipment; internal and external decoration; building materials.
* Other services.
- Printing and Advertising.
- Rental of premises, factories.

branches: