Ero Copper (ERO) Registration Filing summary

Company overview and business model

• High-margin, high-growth copper producer with operations in Brazil and headquarters in Vancouver, Canada.

• Principal assets include majority interests in Mineração Caraíba S.A. (MCSA) and NX Gold S.A., operating copper and gold mines.

• Main operations: Caraíba (copper, Bahia), Tucumã (copper, Pará), and Xavantina (gold, Mato Grosso), with commercial production at Tucumã starting July 2025.

• Option to earn 60% interest in the Furnas copper-gold project in Pará, Brazil.

• Listed on TSX and NYSE under the symbol “ERO”.

Financial performance and metrics

• Caraíba Operations processed 3,431,294 tonnes, producing 35,444 tonnes of copper in 2024.

• Tucumã Operation processed 333,791 tonnes, producing 5,156 tonnes of copper in 2024.

• Xavantina Operations processed 146,161 tonnes, producing 57,210 ounces of gold in 2024.

• Approximately 66% of 2024 revenues were generated by Caraíba Operations.

• Recent financing includes a $75M copper prepayment facility and $50M upfront cash from a gold stream agreement.

Use of proceeds and capital allocation

• Net proceeds from securities sales intended for exploration, development of mineral properties, and working capital.

• Final use of proceeds for any offering will be detailed in the applicable prospectus supplement.