History
2024's
- Technical Grade T4-Certification 04
- Korean CTV construction/order (total amount of 25 billion won) 05
- Recognition of root companies 06
- WPS Approved (BV) 07
- 155 Seater Seoul Han River Bus Construction/Order (total of 17 billion won) 07
- Management Innovation Small and Medium Business (MAIN-BIZ) Certification 09
- Technology Innovative Small and Medium Business (INNO-BIZ) Certification 11


2023's
- Recognition of venture companies 01
- Engineering Business Registration (Korea Engineering Association) 01
- ISO 45001 : 2018 Certification 02
- Technical level T5 certification 05
- Capital increase (KRW 700,000,000 → KRW 1,000,000,000) 11
- ESG management certification 11
- Capital increase (KRW 1,000,000 → KRW 1,200,000) 12
2022's
- ISO 9001 : 2015 Certification 01
- WPS Approval(KR) 01
- ISO 14001 : 2105 Certification 02
- Technical Grade T5 - Certification 05
- Establishment of the Corporate Research Institute 06
- WPS Approval(ABS) 11


2021's
- Founded Eunsung Heavy Industries Co., Ltd. 08