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San Lorenzo Completes Expanded IP Geophysical Survey at the Salvadora Property, Chile, Redesigns Website and Corporate Presentation

Exploration Programs Marketing Announcement

SAN LORENZO COMPLETES EXPANDED IP GEOPHYSICAL SURVEY AT THE SALVADORA PROPERTY,

CHILE, REDESIGNS WEBSITE AND CORPORATE PRESENTATION

CALGARY / June 17, 2025 / San Lorenzo Gold Corp. (" San Lorenzo" or the " Company") (TSXV: SLG) is

pleased to advise that an expanded induced polarization (“IP”) geophysical surveying program has been

completed at the Company’s Salvadora gold-copper project, Chile.

The IP program included:

1) Infill and extended coverage over the Cerro Blanco porphyry target; and

2) Expanded coverage in a northwest direction on the Arco de Oro epithermal target.

Figures 1 and 2 illustrate San Lorenzo’s existing and expanded IP coverage over each of the Cerro Blanco

and Arco de Oro targets (respectively) situated within the Salvadora property.

Figure 1: Cerro Blanco IP Coverage – Historic & New

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Figure 2: Arco de Oro IP Coverage – Historic & New

Preliminary IP sections have been received. Upon the completion of the review and interpretation of the

new geophysical data, San Lorenzo intends to finalize drill targets with the intention of mobilizing a drill

rig for the commencement of the next phase of drilling at Salvadora in the near-term.

Redesigned Website & Updated Corporate Presentation

San Lorenzo is pleased to announce it has redesigned and updated its website and its C orporate

Presentation, which can be viewed at www.sanlorenzogold.ca. Website improvements are ongoing as

part of the Company’s effort to better relay and communicate the compelling story of San Lorenzo’s highly

prospective Salvadora gold-copper project.

About San Lorenzo

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

Results obtained from prior drilling programs conducted on 4 different targets have convinced

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

contained within the Salvadora property.

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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.

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. This is especially true of

statements related to geological programs, their interpretations, results from drilling programs based on IP results and the

timing of such geophysical and drilling programs . 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.