Mr. Terence Walker reports

SAN LORENZO PROVIDES DRILLING UPDATE FROM CERRO BLANCO TARGET, SALVADORA PROJECT, CHILE

San Lorenzo Gold Corp. has provided an update on drilling operations at its Cerro Blanco porphyry target -- situated on San Lorenzo's flagship Salvadora property in Chile.

The first HQ diamond drill hole in the current drill campaign was completed to a depth of 485 metres on Oct. 29, 2025. The hole tested the strong chargeability feature identified during San Lorenzo's May, 2025, induced polarization geophysical survey program, as reported in the company's news release dated June 17, 2025.

Initial observations of the first hole (SAL 04-25) are that drilling intersected mineralization, which correlated well with the IP chargeability anomaly. The nature and intensity of the mineralization are comparable with what was observed in San Lorenzo's first Cerro Blanco drill hole (SAL-01-24) that intersected 153.5 metres grading 1.04 grams per tonne gold, 1.0 g/t silver and 0.05 per cent copper, and included 3.8 metres grading 12.78 g/t gold, 6.5 g/t silver and 0.51 per cent copper as reported in the company's news release dated March 3, 2025.

Commenting on the correlation between mineralization and IP chargeability/resistivity anomalies, Terence Walker, San Lorenzo's vice-president of exploration, stated: "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."

Set-up of the drill to the second Cerro Blanco location has been completed. Assay results from the first hole and additional information related to the current drill program will be reported as available.

Qualified person

Terence Walker, a qualified person for purposes of National Instrument 43-101, has reviewed and approved the contents of this news release.

New Orleans Investment Conference

Further to San Lorenzo's news release dated Oct. 30, 2025, San Lorenzo wishes to clarify that management will be attending, but not presenting at, the New Orleans Investment Conference.

About San Lorenzo Gold Corp.

San Lorenzo is focused on advancing its flagship Salvadora property located in Chile's megaporphyry belt. Results obtained from prior drilling programs conducted on four different targets have convinced management that several significant gold- and copper-enriched epithermal and porphyry-style systems are contained within the Salvadora property.

We seek Safe Harbor.