Thomson BankWatch, Thomson Financial BankWatch:
| International long-term debt (Senior Debt) rating | Short-term rating (national currency) | Long-term rating in the local market (Intra-Country Issuer) |
| July 1996 | | LC-1 | IC-B |
| November 1997 | BBB- | LC-1 | IC-B |
| June 1999 | BBB | LC-1 | IC-B |
| April 2000 | BBB | LC-1 | IC-A/B |
1 December 2000 – change of the methodology and unification of rating scale after Thomson Financial BankWatch was taken over by FITCH IBCA.
FITCH IBCA, FICH Ratings:
| Long-term rating | Short-term rating | Individual rating | Support rating |
| December 2000 | BBB+ | F2 | | 3 |
| November 2001 | BBB+ | F2 | C/D | 3 |
| August 2002 | BBB+ | F2 | D | 3 |
| August 2003 | BBB+ | F2 | D | 2 |
| May 2004 | BBB+ | F2 | D/E | 2 |
| December 2004 | BBB+ | F2 | E | 2 |
| February 2005 | BBB+ | F2 | D/E | 2 |
| February 2006 | A- | F2 | D | 1 |
| July 2007 | A- | F2 | C/D | 1 |