Investor Relations

Administration and Governance


The mission of the Executive Board is to establish guidelines for Usiminas’ management, directing them in internal and external relations. It has its obligation to act in an ethical manner, focused on the interests of diverse parties (stakeholders) involved in each one of the companies and, at the same time, focus on the high quality of the products and services offered to society, promoting socio-environmental corporate responsibility.

Like members of the Board of Directors, the executive officers have two-year terms, with possibility of re-election.

Learn about the members of the Executive Board of Usiminas:

Name Office
Marcelo Chara CEO

Marcelo is a metallurgical engineer and has a master’s degree in metallurgy from the University of Birmingham (UK). He has been a professor at the Catholic University of Córdoba, the National University of La Plata and the Catholic University of La Plata.

In his career in the steel industry, he was Executive President of Ternium Brasil from 2017 to 2023, director of Instituto Aço Brasil, Alacero and vice-president of the board of ABM. He also served as Industrial Director at Ternium in Argentina, Industrial Vice President at Usiminas, Director at Sidor (Venezuela), among other executive positions at Grupo Techint. He has an international executive career of more than 40 years in the sector.

Thiago da Fonseca Rodrigues CFO and IRO - Finance and Investor Relations Vice-President Officer

Graduated in Business Administration from PUC-RJ and post-graduated in Management from IBMEC-RJ, he participated in executive programs in Switzerland and England.

He worked, among other companies, in the Brazilian operation of Ternium and Vale. He is a former member of the Tax Affairs Council of Firjan and of the Audit Committee of Usiminas. He was director of the Brazilian Foreign Trade Association (AEB).

Américo Ferreira Neto Industrial Vice-President Officer

An electrical industrial engineer graduated from Unisanta, specializing in industrial automation and an MBA in project management, he also holds a master’s degree in electrical engineering from the Polytechnic School of the University of São Paulo.

With a career spanning more than 30 years at Usiminas, he worked in the areas of Maintenance, Hot and Cold Rolling and, in 2016, became the executive director of Usina de Cubatão. In 2019, he held the same position at the Ipatinga Power Plant until reaching the Industrial Vice-Presidency in 2020.

Toshihiro Miyakoshi Vice-President of Technology and Quality

Graduated in metallurgy, he started his career at Nippon Steel, having held several positions directly linked to production and management.

Toshihiro Miyakoshi returns to Brazil for his second season at the company, after a stint at Unigal in 2014.

Miguel Angel Homes Camejo Commercial Director Vice-President

Economist graduated from the Catholic University of Caracas, he participated in executive education programs at the universities of Chicago and Stanford, in the USA.

He has a career spanning more than 20 years dedicated to the steel sector, having held several positions in the Ternium Techint group in countries such as Venezuela, Argentina, Mexico and Colombia. He has been at the head of the commercial vice-presidency at Usiminas for four years.

Gino Eugenio Ritagliati Corporate Planning Vice President Officer

Graduated in Accounting, with specializations in Economics and Finance, he was a member of the Audit Committee at Usiminas. He has more than 15 years of experience in positions in the Economic, Commercial and Industrial Engineering areas of the Ternium Techint group in Argentina and Brazil.


The Board of Directors of Usiminas should establish general orientation for business and decide on strategic matters, with purpose of carrying out the following guidelines:

  • Promote the continuous growth of the Company, always respecting its values and its social function, exercising its legal and statutory competence and observing the corporate purpose of the Company and its controlled, subsidiary and associated companies.
  • Ensure the interests of all shareholders, without disregarding the other stakeholders;
  • Ensure the perpetuity of the Company within a long-range perspective and of sustainability, which incorporates considerations of a social, environmental and corporate governance nature in the definition of business and operations;
  • Adopt an agile management structure, made up of qualified professionals with a spotless reputation;
  • Formulate guidelines for the management of the Company and its subsidiaries and associated companies, which will be reflected in the annual budget;
  • Ensure that the strategies and guidelines are effectively implemented by the Executive Board, without, nevertheless, interfering in operational matters;
  • Prevent and manage situations of conflict of interest or divergence of opinions in such a manner that the Company’s interest always prevails.

It is the Board’s responsibility to elect the Executive Officer and determine his functions. The Board is in permanent evolution to adapt to market requirements.

The Board is made up of nine effective members – and their respective alternates – elected in a General Shareholders’ Meeting for a term of two years, re-election being permitted, which meets normally four times a year, as per a previously established schedule. Extraordinary meetings always occur as deemed by the corporate interests.

Learn about the Board of Directors Members:


Name Office
Alberto Ono Board of Directors President

He holds a degree in Metallurgical Engineering from USP, where he also completed his master’s degree in the same area. He later completed his PhD at the University of Tokyo, Japan.

He has worked at Usiminas since 2009, where he held the positions of Director of Planning and Control and Vice President of Finance and Investor Relations. The executive also worked at Aços Villares, CBMM and Grupo Votorantim.

Elias de Matos Brito Member
Sergio Leite de Andrade Member
Edílio Ramos Veloso Member
Oscar Montero Martinez Member
Roberto Luis Prosdocimi Maia Member
Ronald Seckelmann Member
Pedro Henrique Gomes Teixeira Member
Fabrício Santos Debortoli Member


Name Office
Fernando Duelo Van Deusen Member
Walace Caldeira Pinto Member
Cynthia Inés Graf Caride Member
Mario Giuseppe Antonio Galli Member
Tatsuya Miyahara Member
Diego Eduardo García Member
Guilherme Poggiali Almeida Member
Romolo Gonçalves de Paula Member
Patrícia Valente Stierli Member


Made up of members elected in General Meeting, the Permanent Fiscal Council should audit Usiminas’ management and certify that they are performing their legal duties, as set forth in the Company By-Laws.

The Fiscal Council also analyzes the accounting statements, gives an opinion on the investment plans and budgets and issues an opinion in case of proposals modifying the capital, dividend distribution or in the case of transformation, incorporation, merger or cession related to companies of the group.

Learn about the effective members of the Usiminas Fiscal Council:

Name Office
André Leal Faoro Member
Paulo Frank Coelho da Rocha Member

Graduated in Law by the Law Faculty of the University of São Paulo. Concluded his Master’s (LL.M.) in Corporation Law at New York University School of Law. Acted as Foreign Associate at the law offices of Cravath, Swaine & Moore in New York City. At present, he is a Member of the International Bar Association, of the Advisory Board of the “Working Group on Legal Opinions” of the American Bar Association; and the Brazil-United States Chamber of Commerce. He is co-author of the book “Business Laws of Brazil”. He has held the position of partner of the law offices of Demarest e Almeida since 2003. At present, he is a Member of the Fiscal Council of the Company.

Sérgio Carvalho Campos Member
João Vicente Silva Machado Member
Wanderley Resende de Souza Member