Ero Copper Corp. Form 6-K Filing

Ero Copper Corp. has filed a Form 6-K report detailing the filing of a Technical Report for its Xavantina Operations in Mato Grosso, Brazil. The report, effective June 30, 2025, and issued on December 19, 2025, includes an updated mineral reserve and resource estimate in accordance with National Instrument 43-101. The Xavantina Operations are part of Ero Copper's Brazil-focused portfolio, which also includes the Caraíba and Tucumã copper mines, and the Furnas Copper-Gold Project. The company emphasizes its commitment to safety, operational excellence, and responsible mineral production. The filing also incorporates by reference Exhibits 99.1 and 99.2, which include the press release dated December 19, 2025, and the aforementioned Technical Report.