Ms. Courtney Lynn reports

ERO COPPER TO RELEASE FIRST QUARTER 2025 OPERATING AND FINANCIAL RESULTS ON MAY 5, 2025

Ero Copper Corp. will publish its first quarter 2025 operating and financial results on Monday, May 5, 2025, after the market close. The company will host a conference call to discuss the results on Tuesday, May 6, 2025, at 11:30 a.m. Eastern Time (8:30 a.m. Pacific Time). A results presentation will be available for download via the presentations section of the company's website on the day of the conference call.

Conference call details

Date:  Tuesday, May 6, 2025

Time:  11:30 a.m. Eastern Time (8:30 a.m. Pacific Time)

Dial-in numbers:  Canada and United States toll-free at 1-833-752-3380, and international at 1-647-846-2821 (Please dial in five to 10 minutes prior to the start of the call or preregister on-line to bypass the live operator queue.)

Webcast:  A webcast will be available.

Replay:  Canada and U.S. toll-free at 1-855-669-9658, and international at 1-412-317-0088 (Country-specific dial-in numbers are available on-line.)

Replay passcode:  4434787

About Ero Copper Corp.

Ero Copper is a high-margin, high-growth 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-pepr-cent owner of the company's Caraiba operations, which are located in the Curaca Valley, Bahia state, Brazil, and the Tucuma operation, an open-pit copper mine located in Para state, Brazil. The company also owns 97.6 per cent of NX Gold S.A., which owns the Xavantina operation, an operating gold and silver mine located in Mato Grosso state, Brazil. In July, 2024, the company signed a definitive earn-in agreement with Vale Base Metals for a 60-per-cent interest in the Furnas copper-gold project, located in the Carajas mineral province in Para state, Brazil. For more information on the earn-in agreement, please see the company's news releases dated Oct. 30, 2023, and July 22, 2024.