May 28, 2026

Fortuna Mining Corp.
Fortuna publishes its 2025 Sustainability Report

Fortuna Reports Results for the First Quarter 2026

Fortuna Reports 15% Increase YoY in Consolidated Mineral Reserves and updates estimate of Sunbird deposit, Séguéla

Fortuna to release first quarter 2026 financial results on May 6, 2026; Conference call at 12 p.m. Eastern time on May 7, 2026

Fortuna Establishes Presence in the Guyana Shield Through Quartzstone Earn-In Agreement

Fortuna Renews Share Buyback Program

Fortuna reports production of 72,872 gold equivalent ounces in the first quarter of 2026 and provides a business update

Fortuna reports progress on its share buyback program

Fortuna Expands Southern Arc Mineralization with Drill Intercept of 1.7 g/t Au over 29.6 meters and a further 2.0 g/t Au over 20.0 meters from DSDD574 at the Diamba Sud Gold Project, Senegal

Fortuna Awards the Séguéla Mine Plant Expansion Study, Côte d’Ivoire

Fortuna Files PEA Technical Report Highlighting the Development Potential of the Diamba Sud Gold Project, Senegal
