Notes to the financial statements(Expressed in millions of RMB, unless otherwise stated)63 Risk Management (continued)(1) Credit risk (continued)(b) Distribution of loans and advances to customers in terms of credit quality is analysed as follows:GroupBankNote <strong>2012</strong> 2011 <strong>2012</strong> 2011Individually assessed and impaired gross amount 68,627 65,625 68,452 65,490Allowances for impairment losses (45,814) (38,109) (45,678) (38,020)Subtotal 22,813 27,516 22,774 27,470Collectively assessed and impaired gross amount 5,991 5,290 5,895 5,178Allowances for impairment losses (3,909) (3,276) (3,899) (3,265)Subtotal 2,082 2,014 1,996 1,913Overdue but not impaired– not more than 90 days 15,846 14,567 15,405 14,209Allowances for impairment losses (i) (1,778) (696) (1,769) (696)Subtotal 14,068 13,871 13,636 13,513Neither overdue nor impaired– Unsecured loans 2,075,020 1,739,648 2,013,991 1,703,090– Guaranteed loans 1,414,006 1,308,879 1,370,632 1,265,752– Loans secured by tangible assets other than monetary assets 3,129,967 2,737,839 3,071,845 2,688,465– Loans secured by monetary assets 802,855 624,563 797,184 617,362Gross amount 7,421,848 6,410,929 7,253,652 6,274,669Allowances for impairment losses (i) (150,932) (129,136) (149,741) (128,202)Subtotal 7,270,916 6,281,793 7,103,911 6,146,467Total 7,309,879 6,325,194 7,142,317 6,189,363(i)The balances represent collectively assessed allowances of impairment losses.China Construction Bank Corporation annual report <strong>2012</strong>171
Notes to the financial statements(Expressed in millions of RMB, unless otherwise stated)63 Risk Management (continued)(1) Credit risk (continued)(b) Distribution of loans and advances to customers in terms of credit quality is analysed as follows(continued):GroupWithin overdue but not impaired loans and advances and impaired loans and advances which are subject to individualassessment, the portion covered or not covered by collateral held are shown as follows:<strong>2012</strong>Overdue but not impairedloans and advancesImpaired loansand advanceswhich aresubject toindividualassessmentCorporate Personal CorporatePortion covered 1,026 10,388 12,084Portion not covered 978 3,454 56,543Total 2,004 13,842 68,6272011Overdue but not impairedloans and advancesImpaired loansand advanceswhich aresubject toindividualassessmentCorporate Personal CorporatePortion covered 170 11,935 17,607Portion not covered 123 2,339 48,018Total 293 14,274 65,625172 China Construction Bank Corporation annual report <strong>2012</strong>