Algo Grande identifies exploration targets at Adelita

Executive Summary

• Algo Grande Copper Corp. completed a comprehensive reprocessing and reinterpretation of historical geophysical and geochemical data at its 100%-owned Adelita project in Sonora, Mexico, confirming a district-scale, structurally controlled porphyry-skarn mineral system with evidence for multiple porphyry intrusions at depth.
• The integrated study identified 32 high-priority copper-gold-silver exploration targets (18 via traditional geophysical/geochemical integration and 14 via machine-learning prospectivity modelling), with immediate field testing planned for early 2026.
• The company commenced a high-definition ground magnetic survey over the Cerro Grande skarn zone and announced the appointment of João Rocha as Vice President of Exploration to lead ongoing data integration and field programs.
• Drilling at the Cerro Grande Skarn zone continues with 1,000 metres completed in 2025, with plans to continue through January and February, including the first use of oriented core drilling at the project.

Key Details

• Project & Location: Adelita project, 100% owned, 5,895 hectares, Sonora, Mexico (Arizona-Sonora copper belt).
• Geophysical Reprocessing: Conducted by independent consultants GSM Geoscience and Southern Geoscience. Includes modern 3-D magnetic vector inversion (MVI/QMVI), 3-D DCIP inversion, magnetotelluric (MT) modelling, IP, VTEM, and normalized geochemical data.
• Target Identification: 32 high-priority Cu-Au-Ag targets identified. 18 defined by coincident geophysical anomalies, geochemistry, structural interpretation, and historical drilling. 14 generated via AI/machine-learning prospectivity modelling, extending into areas without ground coverage.
• Drill-Ready Targets: AD01, AD08, and AD18 highlighted as exhibiting strong multi-dataset convergence. Targets ranked by Priority 1 (strong convergence), Priority 2/3 (distal/complex), and ML-generated.
• Geological Model: Confirmed deep, vertically extensive conductive feeder structures linking interpreted porphyry intrusions to overlying magnetite-rich skarn mineralization. System architecture includes a deep structural feeder zone, resistive intrusive body (potential porphyry stock), laterally extensive skarn horizon, and structurally controlled fluid pathways.
• Expansion Potential: Significant potential identified beyond the central Cerro Grande skarn zone into Mezquital, Cerro Grande NW, Cerro Potrero, and Las Tablas.
• Ground Magnetic Survey: Commenced over Cerro Grande skarn zone and extensions. Conducted by University of Sonora using GEM GSM-19 Overhauser magnetometer. Line spacing ~20m east-west. Aims to delineate skarn geometry, fault corridors, and buried intrusions. Data will be integrated into the 3-D model.
• Drilling Update: 1,000 metres completed in 2025. Planned to continue in January and February. First use of oriented core drilling at Adelita. Feeder zone planned to be targeted by drilling, concluded in February 2026.
• Management: João Rocha (EurGeol) appointed Vice President of Exploration. 10 years international experience, previously involved in the Cascabel acquisition and buildout.
• Qualified Person: Lorne Warner, PGeo (independent), reviewed and approved technical disclosures per NI 43-101.

Notable Quotes

• Enrico Gay, CEO: "Joao has been instrumental in combining modern exploration technologies with disciplined field execution and deep project knowledge from the Cascabel team. He was pivotal throughout the acquisition process and is a key contributor to the buildout of Algo Grande Copper as we advance Adelita."
• João Rocha, VP of Exploration: "I am honoured to join Algo Grande Copper Corp. as vice-president of exploration at a pivotal time for global critical minerals. The Adelita project represents a high-quality copper-gold-silver skarn-porphyry system aligned with long-term fundamentals. The integration of modern 3-D geophysical reprocessing, AI-based target generation and a high-definition ground magnetic survey at Cerro Grande provides a strong technical framework to accelerate discovery and derisk the project. When combined with geochemistry, trenching and oriented core drilling, this data will significantly improve our ability to predict additional high-grade skarn zones along strike and at depth. I look forward to advancing Adelita through disciplined, data-driven exploration."