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

Marimaca Copper Announces Global Offering of C$409 Million (~ A$423 Million)

February 17, 2026