| Rating Company | Date of Rating | Credit Rating Announced-Long-term | Credit Rating Announced-Short-term | Outlook |
|---|---|---|---|---|
| Moody's Investors Service | NOV 29 2021 | Aa3 | P-1 | Positive |
| Standard & Poor's | JUN 29 2021 | A | A-1 | Stable |
| Taiwan Ratings Corporation | JUN 29 2021 | twAA+ | twA-1+ | Stable |
