San Lorenzo is ready for more drilling at Salvadora

Executive Summary

• San Lorenzo Gold Corp. is commencing a new phase of diamond drilling on its flagship Salvadora property, with construction of access roads and drill pads already underway.
• The program will drill ≥3 holes at Cerro Blanco and ≥4 holes at Arc​o de Oro, targeting the strongest induced‑polarization (IP) chargeability anomalies identified in a 2025 IP survey.
• Prior drilling has returned significant gold intercepts (e.g., 153 m @ 1.04 g/t Au at SAL 01‑24; 23.3 m @ 4.83 g/t Au and 4 m @ 17.95 g/t Au at SAL 01‑25), supporting the expectation of further high‑grade results.

Key Details

• Permitting & Infrastructure – All required permits are in place; field crews are building an access road and preparing a drill pad for the first Cerro Blanco hole.
• Cerro Blanco Program
• Minimum of three holes: one on IP line C5 (linking SAL 01‑24 & SAL 02‑24) and two on IP line C2.
• Targets high‑amplitude chargeability anomalies identified in the 2025 IP survey.
• Past results: SAL 01‑24 delivered a 153 m @ 1.04 g/t Au intercept; SAL 03‑24 confirmed the mineralization‑chargeability relationship.
• Arco de Oro Program
• Focus on a northwest (NW) extension up to 3.9 km from the core zone, identified by IP lines D8 and D5 (May 2025 survey).
• At least four holes will test moderate‑high chargeability features on these lines.
• Historical high‑grade intercepts in the core zone include 23.3 m @ 4.83 g/t Au and a 4 m @ 17.95 g/t Au interval (SAL 01‑25).
• Geological Context
• Salvadora lies ~15 km from the world‑class El Salvador Cu‑Au porphyry deposit within Chile’s megaporphyry belt (Region III).
• Cerro Blanco hosts a ≥1.5 km wide alteration zone with two potential mineralized corridors extending up to 1.7 km strike length NE and >1.0 km NW from existing holes.
• Arco de Oro exhibits a >5 km trend of high‑grade epithermal Au/Ag veining, traceable at surface by historic artisanal workings.
• Operational Plan
• Drilling at Cerro Blanco will be completed before moving to the Arco de Oro NW extension; subsequent work in the core zone will follow pending assay results from a June 2025 surface geochemical program.
• Qualified Person – Terry Walker, VP of San Lorenzo Gold Corp., is a qualified person under NI 43‑101 and has reviewed/approved the release.

Notable Quotes

“We are thrilled that the western extension to line C2 exhibits such a wide anomaly… we have increased confidence that exciting results will be returned from these holes.” – Terry Walker, Vice‑President

“The anomaly visible on line C5 is particularly interesting in that it is the strongest anomaly we've observed to date on our limited IP surveys… We are excited to get drilling on Cerro Blanco as soon as we can.” – Terry Walker, Vice‑President