| № | Rating Action | Date | Rating | Outlook | Report |
| 1 | Assignment | 30.09.2022 | uaAAA | developing | VOSTB-KRP-001-PR |
| 2 | Update | 31.10.2022 | uaAAA | developing | VOSTB-KRP-002-OH |
| 3 | Update | 17.02.2023 | uaAAA | developing | VOSTB-KRP-003-OH |
| 4 | Update | 20.04.2023 | uaAAA | developing | VOSTB-KRP-004-OH |
| 5 | Update | 27.07.2023 | uaAAA | developing | VOSTB-KRP-005-OH |
| 6 | Update | 31.10.2023 | uaAAA | developing | VOSTB-KRP-006-OH |
| 7 | Update | 26.03.2024 | uaAAA | developing | VOSTB-KRP-007-OH |
| 8 | Update | 28.06.2024 | uaAAA | developing | VOSTB-KRP-008-OH |
| 9 | Update | 16.08.2024 | uaAAA | developing | VOSTB-KRP-009-OH |
| 10 | Update | 30.10.2024 | uaAAA | developing | VOSTB-KRP-010-OH |
| 11 | Update | 31.03.2025 | uaAAA | developing | VOSTB-KRP-011-OH |
| 12 | Update | 30.05.2025 | uaAAA | developing | VOSTB-KRP-012-OH |
| 13 | Update | 31.07.2025 | uaAAA | developing | VOSTB-KRP-013-OH |