| Rating Agency | Year | Total Rating | Environment | Social | Governance | |
|---|---|---|---|---|---|---|
| Korea Institute of Corporate Governance and Sustainability | 2022 | A | B+ | A | A | |
| 2021 | A | A | A+ | A | ||
| 2020 | A | A | A+ | A | ||
| 2019 | B+ | C | A | B+ | ||
| 2018 | B+ | B+ | A | B+ | ||
| 2017 | B+ | B+ | A | B | ||
| 2016 | B+ | B+ | A | B+ | ||
| 2015 | B+ | B+ | B+ | B+ | ||
| 2014 | B+ | B+ | B+ | B+ |