- 2017.12.25
- "Technical Report" was updated.
- 2017.11.16
- “CSR” site was redesigned.
- 2017.06.30
- "Making History" was updated.
- 2017.06.29
- "Corporate Profile" was updated.
- 2017.06.28
- "Technical Report" was updated.
- 2017.06.26
- "CSR Policy & Code of Conduct" was updated.
- 2017.05.18
- Making History was updated.
- 2017.03.30
- "Making History" was updated.