Board and Council

Education: Mr. Charneski earned a bachelor’s degree in Accounting in (1974) and participated in a professional exchange program at PricewaterhouseCoopers, in Atlanta, Georgia (United States).

Professional Experience: He was a founder and partner of Charneski, Consultoria S/S LTDA (1988–2009, Charneski – Auditores & Consultores), a company headquartered in the city of Porto Alegre – RS, where he was the technical lead for independent auditing and consulting services. Since 2009, he has provided advisory and consulting services to companies and organizations on Governance, Boards, Management, Accounting, and Tax. He holds a Board member certification from the Brazilian Corporate Governance Institute (Instituto Brasileiro de Governança Corporativa IBGC), where he served as a member of the South Chapter Coordination Committee. He was the first person in Brazil to be nominated as an Acting Partner of Price Waterhouse (1971–1988), where he was also one of the founders of the Accounting and Auditing Commission. He was a director of the Institute of Independent Auditors of Brazil (Instituto dos Auditores Independentes do Brasil, IBRACON) for several terms, having presided over the 6th Regional Section and served as a nationwide director at IBRACON for two terms. In addition, he held the positions of member of the fiscal council ofGrendene S.A. (2011–2013), Forjas Taurus S.A. (1998–2007), and Metalúrgica Gerdau S.A. (2017–2020). He is currently a member of the Fiscal Council of Gerdau S.A and has been a SOX Financial Expert since 2011.

Education:  Ms. Wilhelm completed a bachelor’s degree in Economics from the Federal University of Rio Grande do Sul (UFRGS) in 1979, a graduate degree in Industrial Economics from UFRGS in 1983, a master’s degree in International Finance from the University of Westminster in London in 1996, and extension courses in International Global Finance and Development Economies from the London School of Economics in 1994. She earned a Board member certification from the Brazilian Institute of Corporate Governance (IBGC) in January 2016 and completed a course for Board of Directors members at the IBGC (24th Edition) in 2009.

Professional Experience: She has built her career in large and publicly held companies listed on the stock exchange. She has extensive experience in investor relations, having held the following positions: Senior Economist at Banco Maisonnave de Investimentos S.A. (1981–1984); Credit Coordinator at COMIND S.A. (1984–1986); Senior Investment Analyst at Banco Iochpe de Investimentos S.A. (1986–1988); IR and Investment Manager at Unibanco S.A. (1988–1997); IR Manager at AMBEV/Antarctica – — ADR II (1997–1999); IR Manager at VCP S.A. -— ADR III (1999–2002); IR Manager at COTEMINAS (2002–2004); IR Manager at Grendene S.A. – — IPO (2004–2007); Statutory Investor Relations Officer at Paranapanema S.A. (2007–2011); and Statutory Investor Relations Officer at Forjas Taurus S.A. (2011–2015). She was also a sitting member of the Fiscal Council of Renuka do Brasil S.A. (2016–2017); a sitting member of the Board of Directors of IBGC (2016–2020); a sitting member of the Board of Directors of Eldorado Brasil S.A. (2017–2018); a sitting member of the Fiscal Council of Azevedo Travassos S.A. (2017–2018); an alternate member of the Fiscal Council of BRF S.A. (2017–2018); an alternate member of the Fiscal Council of Viver S.A. (2017–2019); a sitting member of the Board of Directors of Light S.A. (2019–2019); an alternate member of the Fiscal Council of Terra Santa Agro S.A. (2018–2020); the Chairwoman of the Fiscal Council of CVC BRASIL Operadora e Agência de Viagens S.A. (2018–2020), and a sitting member of the Board of Directors of Pomi Frutas S.A. (2017–2022). She is currently a sitting member of the Board of Directors of Serra Azul Water Park S.A. (2021–2023); a sitting member of the Fiscal Council of Metalúrgica Gerdau S.A. (2021–2023), GPA — Grupo Pão de Açúcar (2021–2023), Parceiros Voluntários (2019–2023), and Instituto MEO — Mulheres em Operações (2021–2023); and a Professor at a graduate program of FIPECAFI (2021–present).

Education: Mr. Alves holds a bachelor’s degree in Economics from PUC–SP; a graduate degree in Financial Management from Fundação Getulio Vargas; a master’s degree in Finance and Investments from EAESP–FGV; a Governance, Risk, and Compliance certificate from the Risk University — KPMG; a Portfolio Manager certificate from CVM; and a professional certification from ANBIMA (CGA). In addition, he took an Audit Committee course held by the IBGC.

Professional Experience: He Worked in the financial market, as Investment Director, Equities portfolio Manager, Investment Analyst and Credit Analyst at: BRAM – Bradesco Asset Management, ABN AMRO Bank, Unibanco and Banco Bozzano Simonsen, and in the administrative and financial area of ​​the bus company Vila Carrão. He was Board Member of Value and Liquidity Fund of Bradesco Templeton (1998-2001), Board Member of GP’s Private Equity Technology Fund (2001-2005), Member of the Fiscal Council of Gerdau S.A. (2017-2018), Member of the Fiscal Council Grupo Fleury and Ecorodovias (2018-2019), Alternate Fiscal Advisor to the Private Equity Fund of 2Bcapital (2013-2019) and Partner at Araxá Investimentos (2015-2016). Currently is (i) Board Member of Tim Brasil, (ii) ) Board Member of Marfrig Brasil Foods, (iii) ) Member of the Fiscal Council of Cielo, (iv) Member of the Fiscal Council Grendene, (v) Member of the Fiscal Council Metalúrgica Gerdau,(vi) Alternate Fiscal Advisor to the Gerdau S.A and (vii) Partner at Barigui Gestão de Recursos.

Education: Bachelor’s Degree in Engineering from the State University of Campinas (UNICAMP), and Master’s and Doctorate Degrees from FEA USP, with a focus on Innovation and Sustainability in the industry’s value chain.

Professional Experience: She has extensive experience across various industries and businesses, having worked at McKinsey & Company, Kearney, Avon, and Mars, in addition to founding Gati Consultoria em Gestão e Governança, an affiliate of the Shingo Institute in Brazil. She also has significant experience across the end-to-end production/supply chain/procurement and innovation chain, as well as in retail, direct sales, and other sales channels, both in Brazil and abroad, having lived and worked in multiple locations. She served as an Advisory Board Member at Aliança Metalúrgica and as Coordinator of the Innovation Committee (2022–2024), and as an Advisory Board Member at Hidrolight do Brasil (2023–2024).
Currently, she is (i) an Executive Mentor at Fundação Dom Cabral (FDC) and Ceolab; (ii) President and Founder of Instituto Mulheres em Operações (MEO); (iii) a Member of the Board of Directors at Pérola (formed by Nutrien from Canada, Ultrabulk from Denmark, and Eurobrás from Brazil); (iv) a Member of the Board of Directors at Pettenati S.A.; and (v) an Alternate Member of the Board of Directors at Neoenergia.

Education: He holds a Bachelor’s degree in Accounting from the Universidade do Vale do Rio dos Sinos – UNISINOS. He completed a specialization course in Finance from the Fundação Dom Cabral (Balanced Scorecard) and an Executive Administration course from the Fundação Getúlio Vargas (FGV CEO International).

Professional Experience: He worked as a Foreign Trade Specialist at Bandeirantes and Bamerindus Banks (1968-1977). At PwC, he was a Senior Manager (1980-1988); Partner, Financial Services (1988-1994), Partner and Head of the Financial Services Practice (1994-2009). He also served as Chief Audit Executive at Itaú (2009-2015); Director of Controllership, Risk Management, Integrity, and Technology at BNDES (2016-2017); Member of the Fiscal Council of FGC – Fundo Garantidor de Crédito (2018-2020); Member of the Board of Directors of FGC – Fundo Garantidor de Crédito (2019-2020); Member of the Board of Directors of Braskem (2018-2019); Member of the Fiscal Council of FMCSV (2014-2016); Board Member of Ecorodovias (2018-2020) and Board Member and financial expert of the Audit Committee of XP Inc. (2020-2021). Currently, he is (i) a Board Member of Terra Santa Propriedades Rurais and (ii) an effective member of the Fiscal Council of Metalúrgica Gerdau S.A.

Education: She holds both Bachelor’s and Master’s degrees in Business Administration (UFPE). She has also completed the MBA Advanced Boardroom Program for Women and SEER – Advanced Program for CEOs, Board Members, and Presidents, by Saint Paul School of Business. I addition, she has taken the Board of Directors Course from Brazilian Institute of Corporate Governance and participated in various executive education programs at business schools in Brazil and abroad.

Professional Experience: In 2018, she was elected as an independent Board Member and member of the Statutory Audit and Risk Committee of the former state-owned company Eletrobras. She served as the CFO and IR of the company (2019-2023), being one of the leaders of its recovery and its privatization process, which occurred with the global public offering of shares (follow on) of R$ 33.7 billion in June 2022. She also served as interim president of Eletrobras (from March to May 2021). Furthermore, she presided over the Boards of Directors of three controlled companies: Chesf, CGT Eletrosul, and Santo Antônio Energia. Previously, she was the Executive Director of Planning and Control of Neoenergia, Fiscal Board Member of Norte Energia (UHE Belo Monte), Financial Director of MRS Logística, and Controller of Light, among other positions. She is currently a member of IBGC – Brazilian Institute of Corporate Governance, the NYSE Board Advisory Network, WCD – Women Corporate Directors, and the Board of Directors of IBEF-SP.

Education: Mr. Monticelli holds a bachelor’s degree in Accounting from Faculdade Porto-Alegrense de Ciências Contábeis e Administrativas and a graduate degree in Business Management from Fundação Getulio Vargas.

Professional Experience:He was an Accounting Assistant at Mundial S.A. (1979–1991); a Technical Advisor for Accounting Information Management at Gerdau (1991–2006); a Technical Advisor for Planning and Strategy Management at Gerdau (2007–2008), an Accounting Professor at Faculdade São Judas Tadeu in Porto Alegre (2008–2014 ); an Investor Relations Technical Advisor at Gerdau (2008–2018); a Financial Advisor in projects to reduce the cost of compliance for publicly held companies at the Brazilian Association of Publicly Held Companies – Associação Brasileira de Companhias Abertas, ABRASCA (2018–2019); and a, Financial, Advisor and Partner at Kienbaum Porto Alegre (2020–2021). He is currently an Accounting Professor in undergraduate and graduate programs of Faculdade Dom Bosco in Porto Alegre; a sitting member of the Fiscal Council of Randon S.A. Implementos e Participações and the Lojas Renner Institute; an alternate member of the Fiscal Council, of Metalúrgica Gerdau S.A., Sanepar, and NGO Parceiros Voluntários, a member of the Board of Directors of at Casa do Menino Jesus de Praga, a -third sector institution, and a facilitator of Accounting/ Financial Education programs at the Cambridge Family Enterprise Group.

Education: Bachelor’s Degree in Accounting, with a specialization in Tax Law, a Postgraduate Degree in Financial Management, and an MBA in Finance from IBMEC-SP.

Professional Experience: He began his career at Price Waterhouse Independent Auditors as a trainee, working as an auditor for seven years. He has extensive experience in Controllership and Finance, having served as Controller and CFO for over thirty years in large manufacturing industries.
At São Paulo Alpargatas, he served as Financial Planning Manager and Manager of the Financial Statements and Analysis department for two years. He joined the Villares Group in 1985, where he worked for twenty years, holding roles such as Tax Planning Manager and Controller for several companies within the group and the holding company, also serving for five years as Investor Relations Manager. He was Director of several subsidiaries and Treasurer (Officer) of a U.S. subsidiary.
At Gerdau Group, where he started in early 2006 following Gerdau’s acquisition of Aços Villares, he served as CFO of Aços Villares and Controller (CFO) of Gerdau Diaco (Colombia). He was CFO of Cecil S.A. Laminação de Metais from 2017 to 2019. Currently, he serves as (i) Chairman of the Fiscal Council of Concessionária Aeroporto do Rio de Janeiro S.A. (Tom Jobim Airport), (ii) Alternate Member of the Fiscal Council of JHSF Participações S.A., and (iii) Alternate Member of the Fiscal Council of Gerdau S.A.

Education: Bachelor’s Degree in Business Administration from Fundação Getúlio Vargas (EBAP), Master’s Degree in Accounting from Fundação Getúlio Vargas (ISEC), Postgraduate Degree in Marketing from the Federal University of Rio de Janeiro (COPPEAD), and Postgraduate Degree in Systems Analysis and Design from the Brazilian Institute of Municipal Administration (RD).

Professional Experience: He has over 35 years of experience, including 13 years as CFO/Finance Director and 9 years leading consulting projects. His career spans state-owned enterprises, private companies (both publicly and privately held), limited liability companies, and global corporations across various sectors. He has held positions at Neovia Telecomunicações, Azee Consultoria, Notre Dame Intermédica, Spring Mobile Solutions, First Data, and Lemon Bank. He also held executive finance roles at Purac Sinteses, Reynolds Latasa, and Esso Brasileira de Petróleo.
He served as a Full Fiscal Council Member at Fundação Everis Brasil and was a Professor at the School of Business and Accounting Sciences at UFRJ for 17 years. Currently, he serves as (i) Full Fiscal Council Member at Fundação NTT DATA Brasil, (ii) Full Fiscal Council Member at Laboratório de Educação, and (iii) Executive Officer at Petrobras, in the Finance Department.

Education: Mr. Garcia holds bachelor’s degrees in Engineering from Faculdade de Engenharia e Agrimensura de Pirassununga and Business Administration from Fundação Octávio Bastos; a graduate degree in Accounting and Financial Administration from the Specialization Program in Administration for Graduates of the School of Business Administration of Fundação Getulio Vargas (CEAG/EAESP/FGV ); a master’s degree in Finance from EAESP–FGV; and a doctorate degree in Financing from the EAESP–FGV and the University of Texas. He is currently doing a, doctorate in Philosophy at PUC/SP.

Professional Experience: He is a Professor of Finance at the EAESP/FGV and a former Professor of Finance at Pontifícia Universidade Católica de São Paulo (PUC/SP). He is a member of the Board of Investment Funds and Board of Directors. He is a former Chief Financial and Administrative Officer and Chief Financial Officer of large national and multinational companies and a partner of several companies, namely LGM Consultoria e Representações Ltda, Sinalização e Arte, Comunicação Visual — All Signs, and Axia Valorem Consultoria Ltda. He is currently a member of the Board of Directors of Rossi Residencial and FGV Previ (Pension Fund) and an alternate member of the Fiscal Council of Metalúrgica Gerdau S.A.

Education: Mr. da Cunha holds a bachelor’s degree in Mechanical Engineering from the Federal University of Minas Gerais (UFMG — Brazil), an MBA degree in Project Management from Fundação Getulio Vargas (Brazil), an MBA in General Business Administration from INSPER Business School (Brazil), a certificate in Leading Change and Organizational Renewal from the Harvard Business School (United States), and a certificate in Advanced Corporate Finance from the London Business School (UK).

Professional Experience: He has worked at Gerdau for 18 years. He served as an Executive Officer at Gerdau Aços Longos e Planos in Brazil, Chief Industrial Officer at Gerdau India, and Chief Information Officer (CIO) at Gerdau. Since January 2018, he has been the of Gerdau S.A. and the of Metalúrgica Gerdau S.A., a publicly held holding company with a controlling interest in, Gerdau S.A. He is also, a Board member of Gerdau S.A., and Metalúrgica Gerdau S.A., and the Chairman of the Board of Directors of Seiva S.A. — Florestas e Indústrias, a company that is part of Gerdau’s business group. In addition, he serves as a Board member of Instituto Aço Brasil and Juntos Somos Mais.

Education: Mr. Japur holds a bachelor’s degree in Business Administration and a graduate degree in Economics from the Federal University of Rio Grande do Sul (UFRGS — Brazil).

Professional Experience: Mr. Japur started his career at Gerdau in 2005 as an intern in the Planning area. In 2006, he participated in a trainee program held by the Planning and Management department. In 2015, he was promoted to Business Development Manager. In addition, a year later, he took charge of the debt and capital market management process in the Financial department. In 2018, he assumed the position of Planning, IT & Innovation Manager at Gerdau Diaco and Gerdau Metaldom, in Colombia. In 2020, he returned to Brazil to serve as General Manager in the ​​Financial Operations department. He currently holds the position of Executive Vice- President of Finance and CFO and is, responsible for the Finance, Accounting, and Tax departments. He is also an Investor Relations Officer at Gerdau S.A., Metalúrgica Gerdau S.A., and Seiva S.A. – — Florestas e Indústrias, ; a Vice-President of Gerdau S.A. and Metalúrgica Gerdau S.A.; and a Board Member of Seiva S.A. — Florestas e Indústrias.

Education: Mr. Wahrhaftig holds a bachelor’s degree in Mechanical Engineering from the Federal University of Paraná (UFPR), an MBA from the Manchester Business School (UK) and has studieda graduate degree in Corporate Finance from ISAE/ FGV.

Professional Experience: He has 27 years of professional experience, 19 of which at Gerdau. In recent years, he has served as Commercial Officer at Gerdau Aços Especiais; Corporate Commercial Officer; Commercial Officer at Comercial da Gerdau Aços Brasil; and Vice -President of the operations in Brazil, Argentina, and Uruguay. In addition, he is a member of the Board of Directors of Instituto Aço Brasil, where he also served as Charmain for the 2021–22 period. He was a member of the FIESP/ Consic N — Construction Sector Council; a Board member of the Brazilian Association of the Construction Materials Industry – (Associação Brasileira dos Fabricantes de Materiais de Construção, ABRAMAT); member of the Strategy Council of the Federation of Minas Gerais’ Industries (Federação das Indústrias do Estado Minas Gerais, FIEMG); Vice-Chairman of the Board of Directors of the Brazilian Metallurgy, Materials and, Mining Association (Associação Brasileira de Metalurgia, Materiais e Mineração;o, ABM); and a board member of the Latin American Steel Association ( Asociación Latinoamericana del Acero, Alacero). He currently holds the position of Vice-President of Strategy at Gerdau.

Education: Mr. Pereira holds a bachelor’s degree in Electronic Engineering from Instituto Tecnológico de Aeronáutica (ITA — Brazil), and an MBA degree in Business Administration from the MIT Sloan School of Management, in Cambridge (United States).

Professional Experience: He worked as a Consultant at Booz Allen & Hamilton do Brasil (1995-1997) and as a Summer Intern at Booz Allen & Hamilton International LTD (UK, 1998). He served as a Consultant and Project Leader at Boston Consulting Group Brazil and The Boston Consulting Group INC. (1999–2004). In 2004, he joined Cargill Agrícola S.A., as a Commercial Manager for the Oils & Fats business, and later held the positions of Manager of Commercial Planning and Supply Chain – Consumer Goods (2006–2008); Managing Director — Consumer Products (2008–2010); Managing Director — Cargill Foods Brazil (Consumer Products and Ingredients) (2011–2012); Head of the — Cargill Foods Brazil business unit (2012–2016); an Executive Officer of the South American operation and Global Chief Strategy and Innovation Officer for the Vegetable Oils and Fats Business (2016–2018). In addition, he held the positions of Corporate Vice – President — ​​Strategy, Management & Innovation at BRF S.A. (2018–2020) and Vice – President at Gerdau, where he was in charge of the Special Steel Business in Brazil — GSB (2020-2022). He currently holds the position of Vice – President of Operations in Brazil, Argentina, and Uruguay.

Education: Mr. Peres holds a degree in Business Administration from Faculdade de Ciências Econômicas, Contábeis e Administração Prof. de Plácido e Silva, in the city of Curitiba-PR, and a graduate degree in Business Administration from Universidade Presbiteriana Mackenzie, in São Paulo-SP.

Professional Experience: He has worked at Gerdau for over 38 years. He served as a Sales and Marketing Manager at the Gerdau operation in Mexico (2010–2012) and as a Sales and Marketing General Manager at the Gerdau operation in Colombia (2013–2014), where he was later promoted to Chief Executive Officer and remained until late 2016. He currently holds the position of Commercial Officer at the Gerdau Aços Brasil (GAB) division.

Education: She holds a Bachelor’s degree in Chemical Engineering from Universidade Federal do Rio de Janeiro, an MBA in Business Management from the Fundação Getúlio Vargas, and an MBA in Finance from IBMEC.

Professional Experience: She worked at Shell as the Purchasing Manager for Operations in South America (2004-2007), and as the Corporate Purchasing Manager for the Latin America region (2007-2011). She also worked at Vale as the Global Purchasing Manager (2011-2018), General Manager of Global Purchasing (2018-2021), and in Strategy, New Business, and Management of Renewable Energy Assets (2021). She was a Full Member of the Board of Directors of Aliança Geração and Consórcios de Energia (2021-2022). Currently, she is (i) the Global Supply Director at Gerdau S.A. and (ii) a Member and President of the Board of DFESA (Usina Hidrelétrica de Dona Francisca).

Education: Mr. da Silva holds a bachelor’s degree in Metallurgical Engineering from the Federal University of Minas Gerais (Brazil, 1998), MBAs in Business Management from the Erasmus University in Rotterdam (Netherlands, 2004) and Fundação Dom Cabral (Brazil , 2009) and a graduate degree in Marketing from the Federal University of Minas Gerais (Brazil, 2002).

Professional Experience: He has 25 years of professional experience, 11 of which at Gerdau, where he served as a General Commercial Manager, a General Commercial and Logistics Manager, a General Industrial Manager, and an Executive Manager, all in the Mining area. He currently holds the positions of Mining & Raw Materials Officer of the Company, Board member at MRS, and Mmember of World Steel Association’s Raw Materials Committee.

Education: Degree in Industrial Engineering from the San Agustín National University (Peru), with an MBA from the CENTRUM Business School (Perú) and has studied an Advanced Management Program at Columbia University (New-York USA), a Senior Management and Innovation Program at Berkeley University of California (California-USA) and a Digital Transformation Program at Massachusetts Institute of Technology MIT (USA).

Professional Experience: He has 23 years of experience, with 16 years in Gerdau. In the last years he has held positions of Executive Director at Gerdau Siderperu – Peru, COO Chief Operating Officer, Logistic Manager and Sales Manager of Gerdau Siderperu; Also he was member of the board of Gerdau Siderperu thin 2020-2023 and member of Alacero (Associação Latino-americana do Aço). Currently holds the position of (i) Executive Director at Gerdau Special Steel Brasil and (ii) Member of the board of Gerdau Summit.

Education: He holds a Bachelor’s degree in Mechanical Engineering from the Universidade Federal de Minas Gerais  (UFMG), an MBA in Finance from the Instituto Brasileiro de Mercado de Capitais (IBMEC), and an MBA in Business Administration and Management from the Instituto de Ensino e Pesquisa (INSPER).

Professional Experience: He has 24 years of experience at Gerdau, where he has held positions such as Regional Manager of Raw Materials (2010-2015), Executive Manager at Gerdau Florestal (2015-2018), Executive Manager of Raw Materials and Silviculture (2018-2020), and Director of Raw Materials and Silviculture (2020-2024). He was a Member of the Deliberative Council of the Associação Mineira da Indústria Florestal – AMIF (2015-2018). He is currently the Commercial Director at Gerdau.