2017
- Registration of indoor air quality measurement agency (Subject-Sil-No.4)
2015
- ISO14001 Change Authorization (AK Certifier)
INNO-BIZ Extended Verification Company(SMBA R1204-01936, 2015.9.15)
Patent : Hood mobile baghouse
2012
- Registrations received from Pusan Metropolitan City according to the revision of the Act (Subject-Dae-No.3)
Atmospheric Environmental Management Agency Specification (Subject-Su-No.4)
ISO14001 Certification (AJA Registrars Ltd.,)
INNO-BIZ confirmation (SMBA 1204-01936)
2011
- Various registration cards were issued by the Busan Metropolitan Government according to the revision of the law.
Atmospheric environment construction project Registration Certificate (No.4)
Water Quality Environment Corporation Registration Certificate (No.3)
Atmospheric Self-Measurement Agent Registration Certificate (No.7)
Registration Certificate for water quality self-measurement agency (No.8)
Registration Certificate for the management of personal sewage treatment facilities (Dongrae District Office Registration No. 11)
2008
- Designated work environment measuring agency (Busan Provincial Labor Office, North-West Region, 2008-1)
Company name changed to DAEHAN Environment Engineering. Moved to the new building.
2007
- Designated Environmental Measurement Institution (Busan Provincial Labor Dongrae District Office 2007-2)
2004
- Designated air environment management agency (No. 11)
2001
- Designated water quality environment management agency (No. 15)
Registered management of sewage treatment facilities, etc.(No. 11)
1994
- Registered for self-measurement agency (atmospheric No. 15 and water quality No. 15) of the Busan Regional Environmental Agency
1987
- Established DAEHAN Engineering
Registrated atmospheric (No. 15) and Water Quality (No. 17) of the Busan Regional Environmental Agency