San Lorenzo drills to 475-metre depth at Salvadora

Executive Summary

• San Lorenzo Gold Corp. completed the first HQ diamond drill hole (SAL 04-25) at its Cerro Blanco porphyry target on the Salvadora property in Chile, intersecting mineralization that correlates with induced polarization (IP) geophysical anomalies.
• Initial observations indicate the mineralization nature and intensity are comparable to previous results from hole SAL-01-24, which returned 153.5m at 1.04 g/t Au, 1.0 g/t Ag, and 0.05% Cu, including a high-grade interval of 3.8m at 12.78 g/t Au.
• The drill rig has been set up for the second Cerro Blanco location, with further assay results and program updates to be reported as available.

Key Details

• Drill Hole ID: SAL 04-25
• Completion Date: October 29, 2025
• Depth: 485 metres
• Target: Cerro Blanco porphyry target, Salvadora property, Chile
• Geophysical Context: Hole tested a strong chargeability feature identified during the May 2025 induced polarization (IP) survey.
• Initial Observations: Drilling intersected mineralization correlating well with the IP chargeability anomaly.
• Comparative Results (Hole SAL-01-24):
  • 153.5 metres grading 1.04 grams per tonne gold (Au), 1.0 g/t silver (Ag), and 0.05 per cent copper (Cu).
  • Included 3.8 metres grading 12.78 g/t Au, 6.5 g/t Ag, and 0.51 per cent Cu.
• Current Status: Drill setup for the second Cerro Blanco location is complete.
• Qualified Person: Terence Walker, Vice-President of Exploration.

Notable Quotes

• "We are pleased that IP geophysics continues to be a useful exploration tool for drill target delineation at Cerro Blanco and, indeed, over the Salvadora property generally. We look forward to continued testing of additional high-chargeability IP geophysical anomalies that have already been identified on numerous targets areas within the Salvadora property." — Terence Walker, Vice-President of Exploration