Banco Santander Brasil S A : FIT Energia – closing of the investment transaction

Secret

BANCO SANTANDER (BRASIL) S.A.

Publicly-Held Company with Authorized Capital

CNPJ No. 90.400.888/0001-42

NIRE 35.300.332.067

NOTICE TO THE MARKET

BANCO SANTANDER (BRASIL) S.A. ("Santander Brazil"), in continuation to the Notice to the Market released on August 1, 2023, hereby informs its shareholders and the general market that, in light of the fulfillment of the applicable precedent conditions, its subsidiary, Santander Corretora de Seguros, Investimentos e Serviços S.A. ("Santander Corretora"), has formalized the investment in FIT Economia de Energia S.A. ("FIT Energia"), so that, as of this date, Santander Brazil indirectly holds 65% (sixty-fiveper cent) of the total and voting capital of FIT Energia.

São Paulo, March 6, 2024.

Gustavo Alejo Viviani

Investor Relations Officer

JUR_SP - 45883248v3 - 1453025.498173