| PTC Series A2 | -- | -- | [ICRA]AA-(SO) | -- |
| SN Series A1 | -- | -- | [ICRA]A+(SO) | -- |
| PTC Series A1 | -- | -- | [ICRA]A(SO) | -- |
| PTC Series A1 | -- | -- | [ICRA]A+(SO) | -- |
| SN Series A1 | -- | -- | Withdrawn | -- |
| PTC Series A1 | -- | -- | Withdrawn | -- |
| SN Series A1 | -- | -- | Withdrawn | -- |
| PTC Series A1 | -- | -- | Withdrawn | -- |
| PTC Series A | -- | -- | Withdrawn | -- |
| PTC Series A1(b) | -- | -- | Withdrawn | -- |