Ms. Courtney Lynn reports

ERO COPPER ANNOUNCES CHANGES TO THE BOARD OF DIRECTORS

Ero Copper Corp. has appointed Faheem Tejani to the company's board of directors, effective today, as part of the company's continuing board succession planning. Director Matthew Wubs will not be seeking re-election at the 2024 annual meeting of shareholders as he plans to dedicate more time to his family business.

"On behalf of the board, I would like to extend our appreciation to Matt for his invaluable contributions and dedication since joining us in 2016," said Christopher Noel Dunn, chairman of the board.

Dr. Sally Eyre, chairperson of the board's nominating and corporate governance committee, remarked on the transition: "As Matt prepares to leave his director role in April, 2024, we are very pleased to welcome Faheem to the board. His deep experience in finance, combined with his previous board experience, will bring diverse perspectives to our discussions and decision-making."

Mr. Tejani is a seasoned finance professional with 25 years of experience in capital markets, corporate finance, and mergers and acquisitions. He is currently the president of Capital Asset Lending, one of the largest private mortgage administrators of non-traditional residential mortgages in Canada with approximately $1-billion of assets under management. Prior to this, he dedicated over 17 years of his career to BMO Capital Markets, culminating his tenure as managing director in the equity capital markets division, with a focus on the mining and metals sector. Before joining BMO Capital Markets, he worked at one of the largest global accounting firms. Mr. Tejani also notably served on the board of directors of Pretium Resources from 2018 to 2022. He holds a bachelor of arts (honours) degree from the University of Western Ontario and is a chartered professional accountant.

In preparation for these transitions, Jill Angevine has been appointed as the new chairperson of the board's audit committee. Mr. Wubs will remain a member of the board's audit committee until the 2024 annual meeting.

About Ero Copper Corp.

Ero is a high-margin, high-growth, low-carbon-intensity copper producer with operations in Brazil and corporate headquarters in Vancouver, B.C. The company's primary asset is a 99.6-per-cent interest in the Brazilian copper mining company, Mineracao Caraiba S.A. (MCSA), 100-per-cent owner of the company's Caraiba operations (formerly known as the MCSA mining complex), which are located in the Curaca Valley, Bahia state, Brazil, and include the Pilar and Vermelhos underground mines and the Surubim open-pit mine, and the Tucuma project (formerly known as Boa Esperanca), an IOCG-type (iron ore, copper and gold) copper project located in Para, Brazil. The company also owns 97.6 per cent of NX Gold S.A., which owns the Xavantina operations (formerly known as the NX gold mine), comprising an operating gold and silver mine located in Mato Grosso, Brazil. Additional information on the company and its operations, including technical reports on the Caraiba operations, Xavantina operations and Tucuma project, can be found on the company's website, on SEDAR+ and on EDGAR. The company's shares are publicly traded on the Toronto Stock Exchange and the New York Stock Exchange under the symbol ERO.

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