SUMMARIZED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION SUMMARIZED CONSOLIDATED STATEMENTS OF INCOME FOR THE PERIOD Principal assets MCh$ Operational results MCh$ Cash and deposits in banks 1,876,944 Net interest income 489,527 Loans and accounts receivables from customers and banks, net 39,510,446 Net fee and commission income 154,932 Loans and accounts receivables from customers at fair value, net 370,633 Result from financial operations 85,258 Financial instruments 9,633,504 Total operating income 729,717 Financial derivative contracts 11,211,461 Provision for loan losses (158,777) Other asset ítems 7,293,915 Support expenses (225,004) Total assets 69,896,903 Other results (9,549) Income before tax 336,387 Principal liabilities MCh$ Income tax expense (55,909) Deposits and other demand liabilities 13,746,374 Net income for the period 280,478 Time deposits and other time liabilities 17,247,579 Issued debt and regulatory capital instruments 10,225,561 Attributable to: Financial derivative contracts 11,424,288 Equity holders of the Bank 273,190 Other liabilities ítems 12,359,280 Non-controlling interest 7,288 Total equity 4,893,821 Total liabilities and Equity 69,896,903 Equity attributable to: Equity holders of the Bank 4,739,336 Non-controlling interest 154,485 BANCO SANTANDER-CHILE AND SUBSIDIARIES CONSOLIDATED FINANCIAL INFORMATION As of March 31, 2026 The principal balances and results accumulated for the period ending March 2026 (amounts in millions of Chilean pesos). JONATHAN COVARRUBIAS H. ANDRES TRAUTMANN B. Chief Accounting Officer Chief Executive Officer

B ESTADO DE SITUACIÓN FINANCIERA CONSOLIDADO RESUMIDO ESTADO DE RESULTADOS CONSOLIDADO DEL PERIODO RESUMIDO Principales rubros del activo MM$ Resultados operacionales MM$ Efectivo y depósitos en bancos 1.876.944 Ingresos netos por intereses y reajustes 489.527 Créditos y cuentas por cobrar a clientes y bancos 39.510.446 Ingresos netos de comisiones 154.932 Créditos y cuentas por cobrar a clientes a valor razonable 370.633 Resultado de operaciones financieras 85.258 Instrumentos financieros 9.633.504 Total ingresos operacionales 729.717 Contratos de derivados financieros 11.211.461 Gasto de pérdidas crediticias (158.777) Otros rubros del activo 7.293.915 Gastos de apoyo (225.004) Total Activos 69.896.903 Otros resultados (9.549) Resultado antes de impuesto 336.387 Principales rubros del pasivo MM$ Impuesto a la renta (55.909) Depósitos y otras obligaciones a la vista 13.746.374 Utilidad consolidada del periodo 280.478 Depósitos y otras captaciones a plazo 17.247.579 Instrumentos de deuda y capital regulatorio emitidos 10.225.561 Resultado atribuible a: Contratos de derivados financieros 11.424.288 Tenedores patrimoniales del Banco 273.190 Otros rubros del pasivo 12.359.280 Interés no controlador 7.288 Total patrimonio 4.893.821 Total Pasivos y Patrimonio 69.896.903 Patrimonio atribuible a: Tenedores patrimoniales del Banco 4.739.336 Interés no controlador 154.485 BANCO SANTANDER-CHILE Y AFILIADAS INFORMACIÓN FINANCIERA CONSOLIDADA Al 31 de Marzo de 2026 A continuación, se presentan los principales saldos de balance y resultados acumulados por el periodo de cierre de mes de Marzo de 2026 (cifras en millones de pesos). JONATHAN COVARRUBIAS H. ANDRES TRAUTMANN B. Gerente de Contabilidad Gerente General

IMPORTANT NOTICE The unaudited financial information has been prepared in accordance with the Compendium of Accounting Standards for Banks effective from January 1, 2022 issued by the Financial Market Commission (FMC), The accounting principles issued by the FMC are substantially similar to IFRS but there are some exceptions, The FMC is the banking industry regulator according to article 2 of the General Banking Law, which by General Regulation establishes the accounting principles to be used by the banking industry, For those principles not covered by the Compendium of Accounting Standards for Banks, banks can use generally accepted accounting principles issued by the Chilean Accountant’s Association AG which coincide with International Financial Reporting Standards (IFRS) issued by the International Accounting Standards Board (IASB), If discrepancies exist between the accounting principles issued by the FMC (Compendium of Accounting Standards for Banks) and IFRS the Compendium of Accounting Standards for Banks will take precedence, ¿Qué podemos hacer por ti hoy?

BANCO SANTANDER CHILE 6-K