Pampa Medina Sulphide Drilling Intersects 16m of 5.70% Cu and 62.6 g/t Ag including 4m of 11.32% Cu and 144.0 g/t Ag in Significant Extension of UHG Bornite Zone

June 8, 2026

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Pampa Medina Sulphide Drilling Intersects 16m of 5.70% Cu and 62.6 g/t Ag including 4m of 11.32% Cu and 144.0 g/t Ag in Significant Extension of UHG Bornite Zone
Marimaca Provides Positive Progress Update on the MOD and Sulphuric Acid Strategy

May 19, 2026
Drilling Program at Pampa Medina Continues to Demonstrate Continuity and Scale of Sediment-Hosted Copper System
Marimaca Reports Additional High-Grade Silver Assays from Consolidated Drill Results at Pampa Medina

April 2, 2026
Marimaca Announces the Appointment of Zenon Wozniak to its Board of Directors; Giancarlo Bruno appointed Independent Non-Executive Chair; Board Changes

March 30, 2026
Marimaca Reports Further High-Grade Copper and Silver Intersections more than 600m from Pampa Medina West Step-Out Drilling

March 11, 2026
Marimaca Announces Senior Management Updates

March 2, 2026
Marimaca Copper Announces Closing of Australian Offering to Complete Global Offering of C$409 Million (~A$423 Million)

February 26, 2026
Marimaca Copper Announces Closing of Canadian Offering for C$257 Million (~A$266 Million) of C$409 Million (~A$423 Million) Global Offering
Marimaca Copper Completes Bookbuild for C$409 Million (~ A$423 Million)

February 18, 2026