) Credit concentration 09/30/2010 09/30/2009 Loan, lease <strong>and</strong> other credit operations (*) % of % of Risk Total Risk Total Largest debtor 2,112,908 0.7 2,408,762 0.9 20 largest debtors 27,499,407 9.0 24,765,087 9.2 50 largest debtors 45,665,894 15.1 41,078,059 15.3 100 largest debtors 60,646,167 19.9 55,778,926 20.8 09/30/2010 09/30/2009 Loan, lease <strong>and</strong> other credit operations <strong>and</strong> securities of companies <strong>and</strong> financial institutions (*) % of % of Risk Total Risk Total Largest debtor 4,283,282 1.2 3,847,132 1.3 20 largest debtors 43,126,619 12.2 37,121,470 12.4 50 largest debtors 68,220,263 19.5 59,741,281 19.9 100 largest debtors 87,911,733 25.1 80,244,351 26.7 (*) The amounts include endorsements <strong>and</strong> sureties. c) Changes in allowance for loan losses Opening balance Net increase for the period (24,051,873) (19,972,155) (11,954,420) (12,382,541) Required by Resolution No. 2,682/99 (11,954,420) (14,069,541) Additional (3) - 1,687,000 Write-Off Closing balance 12,722,466 8,286,423 (23,283,827) (24,068,273) Specific allowance (1) (11,098,036) (12,817,853) Generic allowance (2) (6,081,791) (5,146,420) Additional allowance (3) (6,104,000) (6,104,000) (1) Operations with overdue installments for more than 14 days or under responsibility of bankruptcy or in process of bankruptcy companies; (2) (3) 01/01 to 09/30/2010 01/01 to 09/30/2009 For operations not covered in the previous item due to the classification of the client or operation; Refers to the provision in excess of the minimum required by CMN Resolution No.2,682, of December 12, 1999, recognized within the prudential criteria adopted by management in accordance with good banking practice, in order to enable the absorption of possible increases in default arising from a strong reversal of the economic cycle. As from December 31, 2008, considering the economic scenario <strong>and</strong> the uncertainties related to it, the criteria for recognition of the additional allowance for loan losses were revised, including the portion related to risks associated to a more pessimistic scenario. Over 2009, the effects of the crisis were partially consummated, giving rise to an increase in the required regulatory allowance <strong>and</strong> reduction in the additional allowances for loan losses regarding the portfolio. At September 30, 2010, the balance of the allowance in relation to the loan portfolio is equivalent to 8.3% (10.2% at 09/30/2009). <strong>Itaú</strong> Unibanco S.A. – - September0, 2010 104
d) Recovery <strong>and</strong> renegotiation of credits I - Composition of the result of allowance for loan losses 01/01 to 01/01 to 09/30/2010 09/30/2009 Expenses for allowance for loan losses (11,954,420) (12,382,541) Income from recovery of credits written off as loss 2,946,276 1,440,205 Result of allowance for loan losses (9,008,144) (10,942,336) II - Renegotiated credits 09/30/2010 09/30/2009 Renegotiated credits 8,514,497 7,277,785 Allowance for loan losses (4,048,779) (3,855,718) (%) 47.6 53.0 <strong>Itaú</strong> Unibanco S.A. – - September0, 2010 105