| Credit Rating Agency | Rating | Announcement Date | |
| Rating and Investment Information, Inc. (R&I) | Issuer Rating | AA- | March 28, 2024 |
| Commercial Paper | a-1+ | ||
| Japan Credit Rating Agency, Ltd. (JCR) | Long-term Issuer Rating | AA | March 13, 2024 |
Business Hours(Taiwan time)
8:30-17:30 (Except for Sat, Sun, and Holidays)
