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Risk management (Details 2) - BRL (R$) R$ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
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Risk Management |  |
Credit risk exposure - customers (Thousand of Reais) | R$ 778,881,139 | R$ 750,357,060
Loans and advances to customers, gross (note 9) | 602,039,987 | 599,687,844
Contingent Liabilities - Guarantees and other sureties (note 43.a) | 58,917,343 | 64,387,753
Private securities | R$ 117,923,809 | R$ 86,281,463
Non-performing loans ratio (%) | 8.12% | 7.03%
Impairment coverage ratio (%) | 83.22% | 84.44%
Specific credit loss provisions, net of RAWO (*) (Thousand of Reais) | R$ 40,694,182 | R$ 35,668,907

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