Algo Grande Identifies 32 High-Priority Exploration Targets at Adelita and Commences High-Definition Ground Magnetic Survey and Appointment of Joao Rocha, Vice President of Exploration

Executive Summary

• Completed a comprehensive re‑processing and reinterpretation of historic magnetic, IP, MT, VTEM and geochemical data for the 100 % owned Adelita Project, confirming a district‑scale porphyry‑skarn mineral system with deep conductive feeder structures.
• Identified 32 high‑priority copper‑gold‑silver exploration targets (18 integrated multi‑dataset targets and 14 machine‑learning generated targets), including drill‑ready targets AD01, AD08 and AD18.
• Launched a high‑definition ground magnetic survey over the Cerro Grande skarn zone to refine skarn geometry and structural controls; drilling continues with ~1 000 m completed in 2025 and further program planned for Jan–Feb 2026.

Key Details

• Integrated Geophysical Findings
• Reprocessed 3D magnetic vector inversion (MVI/QMVI), 3D DCIP inversion, and magnetotelluric (MT) modeling reveal:
  • Deep resistive bodies interpreted as potential porphyry intrusions beneath the Cerro Grande skarn zone.
  • Magnetite‑rich skarn horizons with high‑grade Cu‑Au‑Ag mineralization.
  • Vertically extensive conductive corridors acting as feeder structures linking deep magmatic sources to overlying skarn.
• Target Definition
• 18 integrated targets (AD01‑AD18) defined by coincident magnetic, IP, MT, geochemical anomalies and structural interpretation.
• 14 machine‑learning targets generated via AI prospectivity modeling using airborne magnetic derivatives and structural proximity metrics; many lie outside historic ground coverage.
• Prioritisation:
  • Priority 1 – strong convergence of all datasets (e.g., AD01, AD08, AD18).
  • Priority 2/3 – progressively more distal or structurally complex positions.
• High‑Definition Ground Magnetic Survey
• Conducted by the University of Sonora (Dept. of Geology) using GEM GSM‑19 Overhauser magnetometers on ~20 m line spacing, east‑west oriented lines across the Cerro Grande zone.
• Objective: delineate magnetite‑rich skarn bodies, improve fault/structural corridor definition, and detect subtle buried intrusions.
• Drilling Program
• Ongoing oriented core drilling at Adelita; ~1 000 m completed in 2025 with additional drilling scheduled for Jan–Feb 2026 targeting the identified conductive feeder zones and high‑priority targets.
• Executive Appointment
• João Rocha, EurGeol (formerly EurGeol), appointed Vice President of Exploration to lead integrated geophysical reprocessing, AI‑based target generation, and field programs.
• Consulting Partners
• GSM Geoscience Pty Ltd. – multivariate geochemical analysis, machine‑learning modeling, 3D integration.
• Southern Geoscience (SGC) – IP, VTEM, magnetic data reprocessing, QA/QC, advanced inversion workflows.
• Qualified Person
• Lorne Warner, P.Geo., reviewed and approved all technical content in accordance with NI 43‑101.

Notable Quotes

“João has been instrumental in combining modern exploration technologies with disciplined field execution… He was pivotal throughout the acquisition process and is a key contributor to the buildout of Algo Grande Copper as we advance Adelita.” – Enrico Gay, CEO

“The integration of modern 3D geophysical reprocessing, AI‑based target generation, and a high‑definition ground magnetic survey provides a strong technical framework to accelerate discovery and de‑risk the project.” – João Rocha, Vice President of Exploration