B3 S A Brasil Bolsa Balcão : Minutes of the BM – 08/10/2023

B3 S.A. - BRASIL, BOLSA, BALCÃO

PUBLICLY-HELD COMPANY

National Corporate Taxpayers' Register (CNPJ) No. 09.346.601/0001-25

State Registration Number (NIRE) 35.300.351.452

MINUTES OF THE ORDINARY MEETING OF THE BOARD OF DIRECTORS

HELD ON AUGUST 10, 2023

1. Date, Time, and Place: On August 10, 2023, at 12:30 pm, at the branch of B3 S.A. - Brasil, Bolsa, Balcão ("B3" or "Company"), located in the city of São Paulo, State of São
   Paulo, at Avenida Brigadeiro Faria Lima, No. 1663, 2nd floor, simultaneously held via videoconference.
2. Attendance: Messrs. Ana Dolores Moura Carneiro de Novaes, Antonio Carlos Quintella, Caio Ibrahim David, Claudia de Souza Ferris, Claudia Farkouh Prado, Cristina Anne Betts, Florian Bartunek, Guilherme Affonso Ferreira, Mauricio Machado de Minas, Pedro Paulo Giubbina Lorenzini and Rodrigo Guedes Xavier - Directors.
3. Presiding Board: Mr. Antonio Carlos Quintella - Chairman; and Mrs. Iael Lukower
   - Secretary.
4. Discussions held by the Board of Directors, having authorized the drawing up of these minutes in summary form:

1. Quarterly Financial Statements - 2nd quarter 2023: The Board of Directors unanimously approved, based on the support material, according to the Audit
   Committee's recommendation, as well as observing the report issued by the Independent
   Auditors Deloitte Touche Tohmatsu Auditores Independentes Ltda., the Financial Statements of the 2nd trimester of 2023.
2. Closing/Forecast - 2nd quarter 2023: in line with the recommendation of the Risks and Financial Committee, the Board of Directors unanimously approved, based on the support material, the change in the depreciation and amortization guidance previously disclosed to the market, from the range of R$975 million to R$1,055 million to the range of R$1,040 million to R$1,100 million, due to the acquisition by the Company of Neurotech Tecnologia da Informação S.A., maintained all other guidances previously disclosed.
3. Election of member of the Product and Pricing Committee: considering the resignation of Mr. Roberto de Jesus Paris from office as external member of the Company's Products and Pricing Committee, with effects as of the date hereof, and in line with the recommendation from the Governance and Nomination Committee, the Board of Directors unanimously elected, Mr. Paulo Eduardo Waack as external member the Products and Pricing Committee, for a term of 2 years from this date. Abstained from voting Director Mauricio Machado de Minas, due to a potential conflict of interest.

INFORMAÇÃO PÚBLICA - PUBLIC INFORMATION

(Continuation of the minutes of the Ordinary Meeting of the Board of Directors of B3 S.A. - Brasil, Bolsa, Balcão held on August

10, 2023)

4.3.1. In view of the resolution above, the composition of the Products and Pricing Committee was ratified as follows: (a) Mr. Guilherme Affonso Ferreira as Coordinator and Independent Unrelated Director, (b) Mr. Florian Bartunek as Independent Unrelated Director, and (c) Messrs. Eric André Altafim, José Eduardo Louzada de Araújo, Luiz Paulo Rodrigues de Freitas Parreiras, Milena Weiss Aloisi, Pedro Hermes da Fonseca, Ricardo Daniel Gomes de Negreiros and Paulo Eduardo Waack as external members. Abstained from voting Director Mauricio Machado de Minas, due to a potential conflict of interest.

5. Closing: There being no further business to discuss, these minutes were drawn up for signature by all Directors present. São Paulo, August 10, 2023. P.a. Ana Dolores Moura Carneiro de Novaes, Antonio Carlos Quintella, Caio Ibrahim David, Claudia de Souza Ferris, Claudia Farkouh Prado, Cristina Anne Betts, Florian Bartunek, Guilherme Affonso Ferreira, Mauricio Machado de Minas, Pedro Paulo Giubbina Lorenzini and Rodrigo Guedes Xavier.

This is a true copy of the minutes that is an integral part of the relevant book.

Antonio Carlos Quintella

Chairman

INFORMAÇÃO PÚBLICA - PUBLIC INFORMATION