Ero intercepts high-grade continuity at Furnas

VANCOUVER, British Columbia, June 10, 2026 (GLOBE NEWSWIRE) -- Ero Copper Corp. (TSX: ERO, NYSE: ERO) ("Ero" or the “Company”) is pleased to announce assay results on an additional 24,000 meters of exploration drilling performed subsequent to the Phase 1 program at the Furnas Copper-Gold Project ("Furnas" or the "Project"), located in the Carajás Mineral Province in Pará State, Brazil. The Company has completed over 75,000 meters of drilling through the end of May 2026, with assay results currently available for approximately 52,000 meters. There are ten drill rigs operating at the Project, and the deposit remains open to depth and along strike.

Assay results from the ongoing drill programs are highlighted by significant step-out drill results occurring along strike and to depth: FURN-DD-00357: 90 meters at 0.74% copper, 0.50 grams per tonne ("gpt") gold and 3.18 gpt silver (1.13% CuEq 1 ), including 32 meters at 1.17% copper, 0.68 gpt gold and 5.40 gpt silver (1.70% CuEq 1 ), a step-out hole in the SE zone, extending the known limits of mineralization by approximately 115 meters down-dip, demonstrating potential for additional high-grade extensions within the SE zone. FURN-DD-00354: 45 meters at 0.98% copper, 0.36 gpt gold and 1.72 gpt silver (1.25% CuEq 1 ), including 20 meters at 1.78% copper, 0.25 gpt gold and 3.12 gpt silver (1.98% CuEq 1 ), representing a high-grade step-out intercept in the SE zone approximately 80 meters beyond the limit of the inferred mineral resource. FURN-DD-00368: 41 meters at 0.94% copper, 0.44 gpt gold and 1.58 gpt silver (1.28% CuEq 1 ), including 16 meters at 0.87% copper, 0.89 gpt gold and 1.52 gpt silver (1.53% CuEq 1 ), drilled in the Central zone of the Project, approximately 220 meters down-dip of the inferred mineral resource estimate and more than 1.1 kilometers west of the high-grade