CORPORATE OVERVIEW CORPORATE DIRECTORY MANAGEMENT BOARD OF DIRECTORS BRAZILIAN LEADERSHIP Manoel Valério de Brito CO-CEO AND COO OF MCSA Mr. Brito has served as COO of MCSA since 2014. He previously worked at the MCSA operations from 1984 to 1996 in various capacities including Mine Planning Manager and CSO (Chief of Strategic Office) and held the role of COO previously from 2006 to 2012. Mr. Brito’s experience also includes operational and management roles within Votorantim Group from 1997 to 2005. Eduardo De Come CO-CEO AND CFO OF MCSA Mr. De Come has 30 years of experience in finance management. He has spent the last 15 years working for companies in the commodities sector (biofuels, agribusiness and mining) and has been the CFO of MCSA since 2013. EMAIL UPDATES SIGN UP © 2021 Ero Copper Corp. | Legal 1050 - 625 HOWE STREET VANCOUVER, BC V6C 2T6 CANADA Website by Adnet

SUSTAINABILITY OVERVIEW SUSTAINABILITY REPORT COMMUNITY ENVIRONMENT HEALTH & SAFETY TAILINGS MANAGEMENT SUSTAINABILITY PHOTO GALLERY SUSTAINABILITY REPORT Sustainability initiatives are fundamental to the Company's successful execution of its growth strategy. Key aspects of the Company's ongoing sustainability efforts are related to both responsible mining and transparent reporting, equally integral to driving sustainability in the mining industry. In 2019, the Company issued its first sustainability report, outlining the ongoing environmental and social programs throughout the regions in which it operates. The Company has aligned with the Sustainability Accounting Standards Board ("SASB") standards to effectively communicate its sustainability efforts. The Company's data and key metrics have been incorporated into the SASB Metals and Mining standard. In addition, the Company discloses certain standard disclosures from the Global Reporting Initiative ("GRI") Sustainability Reporting Guidelines. Please use the links provided below to download the Company's annual sustainability reports. For additional tailings management disclosure, please refer to the Company's tailings management sub-page. April 13, 2021 2020 Sustainability Report View PDF March 31, 2020 2019 Sustainability Report View PDF EMAIL UPDATES SIGN UP © 2021 Ero Copper Corp. | Legal 1050 - 625 HOWE STREET VANCOUVER, BC V6C 2T6 CANADA Website by Adnet