| No | Tanggal | Rating | Outlook | Credit |
|---|---|---|---|---|
| 1 | 25 Mar 2024 | Japan Credit Rating Agency | Stable | BBB+ |
| 2 | 27 Jul 2022 | Japan Credit Rating Agency | Stable | BBB+ |
| 3 | 22 Dec 2020 | Japan Credit Rating Agency | Stable | BBB+ |
| 4 | 31 Jan 2020 | Japan Credit Rating Agency | Stable | BBB+ |
| 5 | 08 Feb 2018 | Japan Credit Rating Agency | Stable | BBB |
| 6 | 07 Mar 2017 | Japan Credit Rating Agency | Positive | BBB- |
| 7 | 01 Feb 2016 | Japan Credit Rating Agency | Stable | BBB- |