Annual Report 2012

Notes to the financial statements(Expressed in millions of RMB, unless otherwise stated)63 Risk Management (continued)(1) Credit risk (continued)(h) Distribution of debt securities investments analysed by ratingThe Group adopts a credit rating approach to manage the credit risk of the debt securities portfolio held. The ratings areobtained from Bloomberg Composite, or major rating agencies where the issuers of the securities are located. The carryingamounts of debt securities investments analysed by the rating agency designations as at the end of the reporting period are asfollows:Group2012Unrated AAA AA A Lower than A TotalIndividually assessed andimpaired gross amount– Banks and non-bank financialinstitutions 477 9 201 2,623 9,243 12,553– Other enterprises 233 2,820 – – – 3,053710 2,829 201 2,623 9,243 15,606Allowances for impairment losses (6,610)Subtotal 8,996Neither overdue nor impaired– Government 930,308 1,538 7,233 157 – 939,236– Central banks 311,712 3,549 19,246 – 1,253 335,760– Policy banks 350,761 – 258 67 – 351,086– Banks and non-bank financialinstitutions 724,862 48,278 9,561 7,952 2,293 792,946– Cinda 57,622 – – – – 57,622– Public sector entities – – 84 – 259 343– Other enterprises 44,339 306,628 10,353 1,740 1,278 364,3382,419,604 359,993 46,735 9,916 5,083 2,841,331Allowances for impairment losses (2,886)Subtotal 2,838,445Total 2,847,441180 China Construction Bank Corporation annual report 2012