2000 ~

2015.09.

Registered as partner company of Shinseagye E&C.

2015.08.

Registered as partner company of Eighth United States Army.

2015.05.

Registered as partner company of Lotte Data Communication.

2015.04.

Implemented sale of UPS.

2015.01.

Consulting of management of Lotte Building (65 stories of skyscraper) in Hanoi, Vietnam.

2014.09.

Pushed ahead with certification of risk assessment of sites throughout the country.

2011.11.

Obtained KS certification of building management service from Korean Standards Association.

2011.06.

Registered as a member of (incorporated association) Korea Institute of Building Property Management.

2011.01.

Registered as electric work business

2010.11.

Registered as Energy Service Company (in the field of electric power).

2010.10.

Registered as a member of Association of High Potential Enterprises of Korea.

2010.06.

Registered as a member of Korea Smart Grid Association.

2008.05.

Technical cooperation with CAMPAIGN in Singapore.

2007.04.

Registered as fire safety control business.

2006.11.

Received excellence award in management innovation from Ministry of Commerce Industry and Energy.

2005.05.

Changed firm name to DW Union.

2004.12.

Registered as elevator maintenance business.

2003.07.

Obtained ISO 14001 certification.

2001.12.

Registered as professional construction business (facility maintenance business).

2001.01.

Registered as apartment house management business.

1990 ~

1998.10.

Obtained a license of worker dispatch business.

1998.10.

Obtained ISO 9001 certification.

1995.09.

Entered into business partnership with VIC in USA and REVAL in Japan.

1992.05.

Changed firm name to Dongwoo Union Development from Dongwoo Gyeongbo.

1990.03.

Established Dongwoo Gyeongbo.

1980 ~

1987.03.

Changed firm name to Dongwoo Service.

1985.09.

Established Dongwoo Industry.