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San Lorenzo Drills Discovery Hole at Cerro Blanco, Reporting 153.5 M of 1.04 G/T GOLD and Reports 39.6 Metres of High-Grade GOLD IN Three Intervals IN the First Hole at Arco de Oro

Drill Results

SAN LORENZO DRILLS DISCOVERY HOLE AT CERRO BLANCO, REPORTING 153.5 M OF 1.04 g/t GOLD and

REPORTS 39.6 METRES OF HIGH-GRADE GOLD IN THREE INTERVALS IN THE FIRST HOLE AT ARCO de ORO

CALGARY / March 3, 2025 / San Lorenzo Gold Corp. (" San Lorenzo" or the " Company") (TSXV: SLG) is

pleased to announce assay results from the first of 3 recently drilled holes on its Cerro Blanco gold/copper

porphyry target as well as partial results from the first of 3 holes recently drilled on its Arco de Oro

epithermal gold target. Cerro Blanco and Arco de Oro are targets located within San Lorenzo’s flagship

Salvadora property in Chile.

San Lorenzo’s CEO Al Kroontje commented that “it’s extremely gratifying to be announcing a discovery

hole with our first drill test of Cerro Blanco, a target management has had high conviction about. Cerro

Blanco is a very large target and we’re just scratching the surface with the three reconnaissance holes in

the current program. Arco do Oro has, again, generated results that confirm the robustness of this large,

high-grade gold system. Arco has the scale to contain a large resource. San Lorenzo is fortunate to control

a property that has not one or two, but five high quality target areas. We plan to expand on our

exploration efforts to advance this high-quality project.”

1) Cerro Blanco

The table below shows the mineralized intervals and assay results from Hole SAL 01-24 - the first of the 3

holes recently drilled on the Cerro Blanco copper/gold porphyry target.

Hole # From(m) To(m) Width(m) Au g/t Ag g/t Cu %

SAL

01-24 229.0 382.5 153.5 1.04 1.0 0.05

including 290.5 382.5 92 1.38 1.1 0.06

including 331.7 335..5 3.8 12.78 6.5 0.51

Cerro Blanco is a two-by-two kilometer area of coincident copper/gold soil and rock geochemistry, IP

chargeability and exposed lithocap that San Lorenzo believes overlays a mineralized porphyry center.

Cerro Blanco has never been drilled before. Mineralization in hole 01-24 continued to the bottom of the

hole, indicating the mineralized system remains open to depth.

Commenting on the Cerro Blanco results, Terence Walker, San Lorenzo’s VP of Exploration explained: “The

initial drill program on Cerro Blanco was designed as a widely spaced first pass recon program. It was

intended to confirm the company's opinion that the coincident strong surface copper and gold sample

values, the alteration types observed in the local intrusive and volcanic rocks and the underlying

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IP/Chargeability anomalies are part of a local gold/copper enriched porphyry deposit similar to those at

the nearby El Salvador mine complex. These assays results indicate the hole’s position in the outer margin

of a porphyry deposit, and we feel extremely fortunate to have received such significant results from the

very first hole drilled on this exciting target.”

Terry Walker continued: “The assay results correspond exceedingly well with our IP interpretation which

reinforces our belief that IP will continue to be a valuable tool during future drilling.”

San Lorenzo has been advised that assay results from the other two holes recently drilled on the Cerro

Blanco porphyry target will be forthcoming during the next approximately 2 weeks. Holes two and three

contain alteration and mineralization similar in appearance to hole one.

2) Arco de Oro

The table below provides assay results from Hole SAL 01-25 - the first of the 3 holes recently drilled on

the Arco de Oro epithermal multi-vein feature. This hole is a 300 metre step out to the northwest along

trend from past drilling at Arco.

Hole # From(m) To(m) Width(m) Au g/t Cu %

SAL

01-25 A 15.7 22.2 6.6 5.61 Pending

including 15.7 18.0 2.3 11.14 Pending

B 110.0 119.7 9.7 4.4 Pending

including 117.0 118.4 1.4 12.2 Pending

C 151.1 174.4 23.3 4.8 Pending

including 152.8 156.8 4.0 17.95 Pending

Terry Walker provided the following observations regarding Hole SAL 01–25: “The gold assays received

from the first of the 3 holes recently drilled on Arco de Oro confirm our thesis that several epithermal

vein systems are converging in a northwesterly direction – as suggested by the strengthening and

widening of the IP chargeability anomaly in that direction. With extensions of high-grade mineralization

over significant widths continuing as we head northwest, the need to actively explore the additional 2.5

km of strike to the northwest - evident from shallow artisanal workings - is very much warranted.”

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Arco de Oro is a five-kilometer trend of epithermal veining indicated by surface exposures and

numerous small shallow artisanal workings. Every hole drilled by San Lorenzo at Arco de Oro has

reported at least one significant gold intercept, indicating the strength and consistency of this large gold

system. High grade results have been obtained to a depth of 300 metres.

San Lorenzo is only in receipt of the gold assays from Hole SAL 01–25 with copper and other elements

expected during the upcoming week.

Management is planning significant follow up programs at both Cerro Blanco and Arco de Oro with

additional drilling also planned for the Tres Amigos copper-rich epithermal system. Further drill results

from Arco de Oro and Cerro Blanco will be reported as they are received and interpreted, and future

exploration plans will be announced once all current drill results are received.

Sample Handling and Qualified Person

All drill core logging, sample selecƟon, cuƫng, bagging and delivery to the ALS lab in Copiapó was

carried out by San Lorenzo staff under the on-site supervision of Eric Hanson P . Geo. and QP .

Terence Walker, P . Geo., a qualified person for purposes of NI 43-101, has reviewed and approved the

contents of this release.

About San Lorenzo

Sam Lorenzo is focused on advancing its flagship Salvadora property located in Chile’s mega-porphyry

belt. Results obtained from drilling programs already conducted on 4 different targets have convinced

management that several significant gold and copper enriched epithermal and porphyry style systems lie

within the boundaries of the Salvadora property.

San Lorenzo looks forward to providing continued updates on the recent Cerro Blanco and Arco de Oro

drilling in the coming weeks.

For further information, please contact:

Terence (Terry) Walker, VP Exploration

Email: [email protected]

Ph: + 56 9 5179 5902

Or:

Roger Blair or Jeff Wilson, Acuity Advisory Corp.

Email: [email protected]

Ph: +1 604 351 0025 or +1 604 837 5440

Or:

Al Kroontje

Email: [email protected]

Ph: +1 403 607 4009

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the

policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news

release.

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Not for distribution to United States newswire services or for release, publication, distribution or

dissemination directly, or indirectly, in whole or in part, in or into the United States

Cautionary Note Regarding Forward-Looking Information

This news release may contain forward-looking information that involves substantial known and unknown risks and uncertainties,

most of which are beyond the control of San Lorenzo. All statements included herein other than statements of historical fact are

forward-looking information. Such forward-looking information involves various risks and uncertainties. There can be no

assurance that such information will prove to be accurate, and actual results and future events could differ materially from those

anticipated in such information. Any forward-looking statements are made as of the date of this release and, other than as

required by applicable securities laws, San Lorenzo does not assume any obligation to update or revise them to reflect new events

or circumstances.