| Year | Detail |
| 1983 |
Established Hyundai Electronics Co. Ltd. |
| 1984 |
Opened U.S. Corporation, HEA. |
| 1986 |
Established Semiconductor Research Institute. |
| 1988 |
Developed automatic answering phone. |
| 1990 |
Established HEA Semiconductor and Computer R&D Center. |
| 1993 |
Opened new Media Operation Division. |
| 1996 |
Established semiconductor fab in Scotland, U.K. |
| 2001 |
Completed separation from Hyundai Group. |
| 2009 |
Acquired Intel validation for the world’s first ultra-high speed DDR3 . |
| 2012 |
Changed the Company name to 'SK hynix Inc.' |
| 2014 |
Acquired PCIe Card Division of Violin Memory. |
| 2016 |
Launched a Handball Team ‘SK Hawks’. |
| 2023 |
Developed the world's fastest mobile DRAM, LPDDR5T. |