
| Period | Project | Organization |
| 2018.10 ~ 2020.04 | Basic & detailed design for Dobongsan~Okjung Line Construction of Single Track Railway Section1 | Korea Rail Network Authority |
| 2018.07 ~ 2019.12 | Basic & detailed design for Dobongsan~Okjung Line Construction of Single Track Railway Section2 T/K | Hanwha E&C |
| 2015.05 ~ 2016.04 | Basic & detailed Design for Byeolnae line double track construction, section 6 | KDC |
| 2014.12 ~ 2016.12 | Basic & detailed design for Jinjeop line double track construction , sectioin 2 | Korea Rail Network Authority |
| 2014.01 ~ 2017.12 | Aternative design for Wonju-Gangreung railway construction, section 4,6,8 | DONGBU CORPORATION, KDC, HYUNDAI E&C |
| 2011.02 ~ 2012.12 | Complementary design of Seohae Line double track construction , section 10 | Korea Rail Network Authority |
| 2012.05 ~ 2015.06 | Complementary design for Boseong ~Imseong ri railway construction , sectioin 5 | Korea Rail Network Authority |
| 2013.07 ~ 2014.04 | Basic & detailed design for Gimpo urban railway construction section 2(T/K) | Halla Corporation |
| 2012.11 ~ 2015.04 | Basic & detailed design for Jungang line (Dodam-Yeongcheon), section 2,5 | Korea Rail Network Authority |
| 2012.03 ~ 2014.04 | Basic & detailed design for Dongducheon-Yeoncheon double track | Korea Rail Network Authority |
| 2011.03 ~ 2013.02 | Basic & detailed design Sinansan line, sectioin 8 | Korea Rail Network Authority |
| 2011.03 ~ 2011.05 | Airport railway related facility expansion construction (T/K) | Daelim Industrial Co., Ltd |
| 2010.08 ~ 2012.12 | Detailed design for Wonju-Gangreung railway construction section 9 | Korea Rail Network Authority |
| 2010.04 ~ 2011.07 | Basic & detailed design for metropolitan high speed railway, sectioin 1,2 | Korea Rail Network Authority |
| 2008.11 ~ 2009.11 | Detailed design for Honam high speed railway, section 7 | Korea Rail Network Authority |