a) Guarantees and commitments

The Bank offers a range of guarantees to help its clients improve their credit standing and enable them to compete effectively. The table below details all the guarantees as of December 31, 2025 and 2024.

As required, the "Maximum potential value of future payments" represents the notional amounts that could be regarded as a loss in the event of a total default by the guaranteed parties, without taking into account possible recoveries from guarantees held or pledged, or recoveries on appeal. There is no correlation between these values and the probable losses on these guarantees. In fact, the "Maximum potential value of future payments" significantly exceeds the inherent losses.

The Bank provides its clients with financial guarantees in commitments with third parties. The Bank retains the right to seek reimbursement from clients for any amounts it is required to pay under these guarantees. Additionally, cash or other forms of high liquidity collateral may be held against these commitments. These contracts are subject to the same credit assessment process as that applied to loans.

The Bank expects that these guarantees will expire without the need for any cash advances. Therefore, in the normal course of operations, the Bank anticipates that these transactions will have virtually no impact on its liquidity.

Performance guarantees are issued to secure clients' commitments, such as contractually specified investments, and to provide specified products, basic goods, or maintenance or warranty services to third parties, ensuring project completion in accordance with contractual terms, among other obligations. Included within standby letters of credit are guarantees for loan repayment, credit lines, promissory notes, and commercial acceptances. The Bank invariably requires collateral to issue this type of financial guarantee. In documentary credits, the Bank acts as a payment intermediary between commercial entities across different countries (import/export operations). In these transactions, the parties involved handle documents rather than the actual goods these documents represent. Typically, the basic goods traded serve as collateral for the transaction, and the Bank may extend certain credit lines. Commitments for loans redeemable by third parties primarily encompass most credit card lines and commercial commitments. Credit card lines may be unilaterally terminated by the issuer. Commercial commitments are generally one-year lines, contingent upon the client providing requisite information.

The risk criteria for issuing all types of guarantees, standby letters of credit, documentary credits, and all signature risks are generally the same as those used for other credit risk products and, therefore, are subject to the same admission and monitoring standards. Guarantees provided on behalf of clients undergo the same credit quality review process as any other credit risk product. Regularly, at least once a year, the solvency of clients is assessed, as well as the likelihood of these guarantees being executed. Should there be any doubt regarding a client's solvency, provisions are recognized in net profit for the amount of inherent losses, even if no legal proceedings have been initiated against the Bank.

The recognition of provisions for impairment losses related to guarantees and other sureties (note 9.c) is recorded under the line item Impairment losses on financial assets (net) in the consolidated statement of income, and the methodology for its calculation is detailed in note 2.i.

Furthermore, the liability recognized as deferred income for the premium received for providing these guarantees is being amortized over the life of the related guarantees and totals R$253,677 (2024 - R$300,711 and 2023 - R$282,613).

b) Managed funds not recognized on the balance sheet

Banco Santander manages funds in which it does not hold a significant stake, does not act as a "principal," and has no equity interest. Based on the contractual relationship that governs the management of these funds, other equity holders are exposed to, or have rights to variable returns and are able to influence these returns through their decision-making authority. Additionally, the Bank act as manager of these funds by analyzing the remuneration regime, which is proportional to the services rendered. Therefore, there is no indication that the fund is "principal" (note 2.w).

Following are the funds managed by Banco Santander not recognized on its balance sheet:

c) Third-party securities held in custody

As of December 31, 2025, the Bank held in custody third-party debt securities and securities totaling R$146,156,911 (2024 - R$51,196,827).

d) Residual maturity

The breakdown, by maturity, of the balances of Financial Assets and Financial Liabilities in the consolidated balance sheet is as follows:

e) Equivalent value of assets and liabilities in BRL

The main foreign currency balances recorded in the consolidated balance sheet, based on the nature of the respective items, are as follows:

Banco Santander leases properties, primarily for use as branches, under a standard lease agreement that it may terminate at its discretion. This agreement includes a renewal option and adjustment clauses, falling within the concept of operational leasing.

The total of future minimum lease payments under non-cancellable operational leases is presented below:

Additionally, Banco Santander holds indefinite-term contracts, amounting to R$488 (2024 - R$431), corresponding to the monthly lease payments for contracts of this nature. Lease payments, recognized as expenses in the fiscal year of 2025, totaled R$194,402 (2024 - R$256,371).

Lease agreements will be adjusted annually in accordance with prevailing legislation, where the maximum adjustment is based on the fluctuation of the General Market Price Index ("IGPM"). The lessee is granted the right to unilaterally terminate these agreements at any time, pursuant to contractual clauses and current legislation.

g) Contingent assets

As of December 31,2025 and 2024, contingent assets were not recognized in the accounting records.