Company History
2011 ~ present
| 2011. 9. 7 | Received a plaque of appreciation from Korea Rural Community Corporation (for soil remediation project at 9 Field Ordnance Depot at Gijang-gun) |
| 2013. 5. 23 | Received citation from Minister of Environment (for contributing to soil and groundwater conservation) |
| 2013. 11. 29 | Received ISO 14001 (environmental management system) certification |
| 2016. 3. 3 | Certified as a sincere taxpayer (by Governor of Gyeonggi-do) |
| 2022. 10. 20 | Completion of soil center |
2006∼2010
| 2006. 12. 22 | Moved head office to Sangdaewon-dong, Jungwon-gu |
| 2007. 11. 1 | Divided our construction division and established SANHA Construction Co., Ltd. |
| 2008. 5. 30 | Received an award from Minister of Knowledge economy (for contributing to environmental improvement in the mining region and to the development of the mining industry) |
2001∼2005
| 2001. 6. 30 | Received Mayor of Seoul's Citation (for construction of subway line 6 of Seoul Metropolitan Subway) |
| 2002. 4. 20 | Received Prime Minister's Citation (for contributing to the development of national industry) |
| 2002. 8. 29 | Received Chairman's Citation from Busan Transportation Company (for construction of subway line 2 of Busan Metro) |
| 2002. 12. 18 | Designated as an innovative business (INNO-BIZ) by Small and Medium Business Administration (MBA) |
| 2002. 12. 26 | Designated as an outstanding technological company by Korea Technology Finance Corporation (KIBO) |
| 2003. 8. 27 | Changed company name to SANHA E&C Co., Ltd. |
Since the foundation of SANHA - 2000
| 1992. 2. 12 | Established Daeduk Consulting & Construction Co. |
| 1997. 5. 28 | Certified as Industrial R&D Center (Wonsam-myeon, Yongin-si) |
| 1997. 11. 27 | Designated as a military substitutional laboratory |
| 1998. 4. 24 | Acquired ISO 9001 certification |
| 2000. 9. 26 | Signed technology transfer agreement for RPUM technology with Italy's Trevi Group |
| 2000. 12. 29 | SANHA's NSNB technology designated as a new technology by the Ministry of Construction and Transportation |
