Mr. Guilherme Fontes Ribeiro has been the Chairman of the company since 2024. He served as a Member of the Board of Directors of Nova Fronteira Bioenergia SA from 2016 to 2017, a joint venture between Sao Martinho and Petrobras Biocombustivel SA. Mr. Ribeiro was a member of the Board of Directors of Landco Empreendimentos e Participacoes SA from 2016 to 2017 and Vale do Mogi Empreendimentos Imobiliarios SA from 2014 to 2017. In 2019, he served as a Member of the Advisory Board of BP - Beneficencia Portuguesa de Sao Paulo.

Mr. Fabio Venturelli has been Chief Executive Officer, Director and President of the company since 2007. He has over 30 years of experience in Corporate Management, Global Business Management and Commercial Management in the chemicals and plastics industry with experience in managing national and international companies. Mr. Venturelli held several positions in Brazil and the United States, including Global Business Director and Corporate Strategic Development Director from 1989 to 2007.

Mr. Felipe Vicchiato has been Chief Financial Officer of the company since 2006. He has over 21 years of experience in the financial industry and in the fields of Controllership, Treasury, Investor Relations and M&A. Mr. Vicchiato began his career at Arthur Andersen and later worked at Banco Bilbao Vizcaya and Banco Bradesco, where he served in the Risk and Corporate Banking areas.