Algo Grande Copper Commences Phase II Drill Program at Adelita Project

Executive Summary

• Algo Grande Copper Corp. has commenced Phase II drilling at its 100%-owned Adelita Project in Sonora, Mexico.
• Major Drilling Group International mobilized to site and spudded the initial hole (AG_GC_PH2_001) at the Cerro Grande Cu-Ag-Au skarn target on June 9, 2026.
• The 8,000-metre program is designed to expand the Cerro Grande discovery along a 2.5-kilometre corridor and includes maiden drilling at the Cerro Potrero South and Las Trancas targets.

Key Details

• Drilling Commencement: Phase II exploration program officially started with Major Drilling Group International Inc. mobilized to site.
• First Hole Details: Hole AG_GC_PH2_001 spudded at the Cerro Grande Cu-Ag-Au skarn target on June 9, 2026, with a planned depth of 500 metres.
• Exploration Objective: Initial hole aims to extend the Cerro Grande skarn discovery 100 metres north of the Phase I drill footprint.
• Program Scope & Strategy: Total planned program is 8,000 metres. Subsequent holes will systematically expand the discovery south and northwest along a 2.5-kilometre corridor defined by magnetic surveys, soil geochemistry, and geological mapping.
• Additional Targets: Program includes maiden drill programs at the Cerro Potrero South skarn and Las Trancas epithermal targets.
• Reference Material: Full program details and geological context were previously outlined in the Company's news release dated May 28, 2026.
• Reporting: The Company will provide ongoing updates as drilling progresses.