Algo Grande Copper commences Phase II drill program at Adelita

Algo Grande Copper Commences Phase II Drill Program at Adelita Project

Major Drilling mobilized to site; first hole underway at Cerro Grande

VANCOUVER, BC / ACCESS Newswire / June 12, 2026 / Algo Grande Copper Corp. (TSXV:ALGR)(OTC PINK:ALGRF)(FSE:KM00) ("Algo Grande" or the "Company") announces that drilling has commenced on its Phase II exploration program at the Company's 100%-owned Adelita Project in Sonora, Mexico. Major Drilling Group International Inc. has mobilized to site and spudded hole AG_GC_PH2_001 at the Cerro Grande Cu-Ag-Au skarn target on June 9, 2026, targeting a planned depth of 500 metres. The hole is designed to extend the Cerro Grande skarn discovery 100 metres to the north of the Phase I drill footprint. Subsequent holes will systematically expand the discovery to the south and northwest along a 2.5-kilometre corridor defined by magnetic surveys, soil geochemistry, and geological mapping (Figure 1).

Figure 1. Detailed view of the Cerro Grande drill target corridor over the high-definition TMI magnetic image. The currently defined Cerro Grande skarn discovery (dark blue outline) is situated within a broader approximately 2.5-kilometre magnetic anomaly corridor that remains open along strike to the northwest and southeast.

The 8,000-metre program targets expansion of the Cerro Grande discovery along the 2.5-kilometre corridor, along with maiden drill programs at the Cerro Potrero South skarn and Las Trancas epithermal targets. Full program details are provided in the Company's news release dated May 28, 2026 (available here and under the Company's profile at www.sedarplus.ca).

The Company will provide updates as drilling progresses.

About Algo Grande Copper Corp.

Algo Grande Copper Corp. is a growth-focused mineral exploration company advancing the Adelita Project, a district-scale, multi-system copper-silver-gold opportunity positioned in the prolific Arizona-Sonora copper belt.

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