The Group currently has a corporate credit rating of Aa3/Outlook Stable from Moody's Investor Service and AA-/Outlook Stable from Standard & Poor's, equivalent to China's sovereign credit rating respectively. These ratings demonstrated that the Company's sound financial strength, favorable business potentials and solid financial management have led to wider and deeper market recognition.

| Date | Standard & Poor's | Moody's |
| 16 Dec, 2010 | AA- / stable outlook | |
| 11 Nov, 2010 | Aa3/ positive outlook | |
| 08 Oct, 2010 | A1/+ | |
| 31 Jul, 2008 | A+ | |
| 26 Jul, 2007 | A1 | |
| 30 May, 2007 | A2/+ | |
| 27 Jul, 2006 | A | |
| 13 Jul, 2006 | A2/ positive outlook | |
| 20 Jul, 2005 | A- | |
| 21 Sep, 2005 | A2/ stable outlook | |
| 17 Feb, 2004 | BBB+ | |
| 30 Jun, 2004 | A3 | |
| Sep, 2003 | Baa1 | |
| 2003 | BBB | |
| 2002 | BBB | Baa2 |
| 2001 | BBB | Baa2 |
| 2000 | BBB | Baa2 |
| 1999 | BBB | Baa2 |