Page 1

B3 S.A. - Brasil , Bolsa , Balcão CNPJ nº 09.346.601 / 0001-25 NIRE 35.300.351.452 MATERIAL FACT Acquisition of Neoway 3 [ B ] ³ BRASIL BOLSA BALCÃO B3 S.A. Brasil , Bolsa , Balcão ( “ B3 ” or “ Company ” ) referring to the Material Fact released on October 14 , 2021 , informs that it has entered into a Share Purchase Agreement ( " Agreement " ) for the acquisition of 100 % of the capital stock of Neoway Tecnologia Integrada Assessoria e Negócios S.A. ( " Neoway " ) , a technology company specialized in big data analytics and artificial intelligence for business . The total value of acquisition will be R $ 1.8 billion and the resources will come from B3's free cash position . According to Article 256 of Brazilian corporate law ( Law 6,404 / 76 ) , the Company will submit the acquisition to the approval of an Extraordinary General Meeting , to be called in due course with additional information to shareholders . Also pursuant to Article 256 and Article 137 of Law 6,404 / 76 , the Company informs that the acquisition of Neoway will not give any dissenting shareholders the right to withdrawal , in view of the liquidity and dispersion of the shares issued by the Company in the market . The closing of the transaction is subject to customary precedent conditions , including the approval by the Brazilian Securities Commission ( " CVM " ) and the Anti - Trust Authority ( " CADE " ) . About Neoway Founded in 2002 , Neoway is one of the largest companies in big data analytics and artificial intelligence for business in Latin America , offering solutions that improve productivity and precision in decision- making in sales and marketing , credit , compliance and loss prevention , and legal analysis among others , in approximately 20 major sectors , including finance , automotive and transport , consumer goods , collection and recovery , civil construction , oil and gas , health and technology . Neoway has approximately 450 employees in 3 offices , approximately 700 customers and expected net revenue of approximately R $ 190 million in 2022 . B3's Strategy The acquisition of Neoway is in line with B3's strategy to develop data and analytics products for financial and capital markets , as well as credit and retail , serving both financial clients and clients from other markets . The acquisition will bring data science and analytics capabilities complementary to those of B3 , contributing to expand the capillarity of existing products and time - to - market of future products , besides strengthening the engineering and data modeling via intellectual capital and a well - established platform . Neoway will be managed with great independence from B3 to preserve its flexibility and strong culture of innovation . A conference call for investors regarding the acquisition will be held today ( Tuesday ) October 19th at 8:15 am , EST time ( 9:15 am , Brazilian time ) . More information is available at our Investor Relations website . São Paulo , October 19 , 2021 Daniel Sonder Chief Financial , Corporate and Investors Relations Officer Investor Relations : +55 11 2565-5739 / 7739 / 4129 / 4490 / 7976 | RI@B3.COM.BR INFORMAÇÃO PÚBLICA – PUBLIC INFORMATION