San Lorenzo Cuts Numerous Intercepts of Porphyry Style Mineralization in Holes 9 and 10 on Arco de Oro Target Including 102.3 Metres Of 1.33 G/T Gold

(TheNewswire)

CALGARY – TheNewswire - May 8, 2026 - San Lorenzo GoldCorp. ("San Lorenzo"or the "Corporation")(TSXV: SLG) is pleased to announce further assay results from therecently completed drilling program at the Arco de Oro target on SanLorenzo’s flagship Salvadora property in the mega-porphyry belt ofChile. The full assay results from Hole SAL 09-25 and partial resultsfrom SAL 10–25 - that included 102.3 metres of 1.33 g/t gold -targeted the “NW extension" of the Arco de Oro trend, with thedrilling having returned intercepts in porphyry style mineralization.Importantly, holes 9 and 10 on the NW extension were significantstep-outs from San Lorenzo’s previous drilling at Arco de Oro – afull 3.9 km step-out from the closest prior drill hole at Arco de Oro.

Commenting on the assays from holes SAL 09 and 10-25, Terence Walker,San Lorenzo’s VP of Exploration, commented: “These holes indicatethe presence of a much larger system within the Arco de Oro trend thanearlier thought.  It would appear that we are penetrating the upperlayers of a gold-rich mineralized porphyry copper-gold system whichwarrants immediate follow-up drilling to further delineate theintrusive complex that hosts the system discovered in SAL 09 and SAL10-25”.

Commenting on reporting the partial results of Hole SAL 10-25, AlKroontje, San Lorenzo’s CEO commented: “While complete results forHole 10 are still pending, San Lorenzo elected to release thecurrently available assays immediately, given their significance. Theresults reported to date, particularly when viewed alongside Hole 9,confirm the presence of substantial porphyry mineralization andfurther strengthens our confidence in the broader system. Importantly,a meaningful portion of Hole 10 assays remain outstanding at depthswhere significant intercepts were obtained in Hole 9.  Arco de Orowas already an impressive mineralized system, given its long strikelength.  These new results at the NW extension, which we will alsorefer to as the “San Juan” portion of the system in the future,show much larger scale potential than we had previously considered”.

Arco de Oro Holes9 & 10

Results from SAL 09 – 25 and partial results from SAL 10 – 25,holes drilled on the NW extension of the Arco de Oro trend, arepresented in Tables 1 and 2 below:

Note: results for hole SAL 09-25, between adepth of 223 and 542 metres were previously reported by San Lorenzo onMarch 2, 2026.  Results above 223 metres and below 542 metres in SAL09-25, and all results reported from SAL-10-25 in this release, arenewly received.

Table 1:  SAL 09–25 AssayResults

Table 2: SAL 10-25 AssayResults

NOTE: assays have only been receivedto a depth of 348.0 m – remainder are pending.  Hole drilled to570.0 m.

Figure 1 - Section across a portionof IP line D8 indicating the location of Holes SAL 09-25

 and SAL 10-25 and depicting themineralized intercepts obtained.

Note: SAL 10-25 assay results below348.0 m have not yet been received.

Click Image To View Full Size

The substantial funding recently secured by San Lorenzo enabledmanagement to expand the scope of exploration at Arco de Oro beyondthe extensive epithermal vein systems, which extend over 6 kilometersof strike as evidenced at surface by historic, shallow artisanalworkings. The enhanced program now also includes testing of inducedpolarization (“IP”) anomalies, broadening San Lorenzo’sexploration approach and increasing exposure to potential newdiscovery opportunities across the targets.

Management has long held the view that the strong IPchargeability/resistivity features evident in San Lorenzo’s historicIP data – features that were duplicated in last summer’s IPprogram in the NW extension area of Arco de Oro – likely indicateintrusive sources responsible for the epithermal systems’ creation. That view has been substantiated by the results of Holes SAL 09-25and 10-25.

San Lorenzo is not yet in possession of assay results below 348 metresin hole SAL 10-25.  Hole SAL 10-25 encountered similar mineralizationas seen in hole SAL 09-25.  In SAL 10-25, potassic alterationcontinued to strengthen and dominate towards the bottom of the hole,below currently received assay results with significantmulti-directional pyrite-chalcopyrite rich veins within essentiallydioritic intrusives and dykes indicating multi-episodic mineralizationevents in a gold-rich porphyry copper-gold setting.  In Hole 10-25,grades continued to improve with depth.  Visual indications fromdeeper core indicate strong chalcopyrite rich mineralization withassociated potassic alteration still evident at the bottom of the hole(assays pending) which terminated at a depth of 574 metres due todrilling rig limitations.

Additional Assaysand Drilling

San Lorenzo expects assay results from the 5 ½ holesthat have already been drilled on Arco de Oro – upon which assayresults are not yet available – to be reported on a regular basis. San Lorenzo is committed to providing stakeholders with regularupdates as assay results are obtained.

San Lorenzo has finalized the permitting material forthe upcoming Phase 7 drilling program at Salvadora.  The process ofconstruction followed by rig mobilization is expected to commencewithin approximately 30 days.

Metals Investor ForumParticipation

San Lorenzo is pleased to confirm that it will beparticipating in the Metals Investor Forum being held today andtomorrow at the JW Marriott Parq in Vancouver.

Management will be on hand throughout the two-day eventto meet with shareholders, analysts, existing and prospectiveinvestors to discuss the Corporation’s strategy, the Salvadoraproject generally, and the recently completed drilling campaign atSalvadora.

San Lorenzo’s CEO, Al Kroontje, will be presenting ona panel hosted by Eric Coffin of HRA Advisory.

Presentation Details:

• Date: Friday,May 8, 2026 

• Time: 12:00noon Pacific (15:00 p.m. Eastern) 

For more information on the Metals Investor Forum,please visit: www.metalsinvestorforum.com

For those that are unable to attend in person, the presentation can bewatched in real time via live feed (or subsequently via replay) byvisiting https://metalsinvestorforum.com/virtual-live-stream/

QualifiedPerson

The scientific and technical information contained inthis news release has been reviewed and approved by Terence Walker,M.Sc., P. Geo., the VP of Exploration of San Lorenzo who is a"qualified person" within the meaning of National Instrument43-101.

TestingProcedures

Samples consisting of 50% of the HQ core are deliveredto the ALS Laboratories in Copiapó by San Lorenzo staff forpreparation which consists of drying and crushing to a 2 mm mesh andthen pulverized.  The sample material is then delivered to ALS’sfacilities in Lima, Peru for gold analysis using the fire assaymethod.  Samples also analysed by aqua-regia digestion to analyse forother elements including Ag and Cu. San Lorenzo notes thatthe correlation between sample intervals andtrue widths are unknown as the systems are still being modeled.

Drill Hole and Assay Data

Drill collar data, including individual assay resultsfrom each of the holes presented in this news release, will be madeavailable in the coming days on San Lorenzo’s website:  www.sanlorenzogold.ca under the Salvadora sub-heading “Drill Hole and AssayData”.

About San Lorenzo

San Lorenzo is focused on advancing its flagship Salvadora propertylocated in Chile’s mega-porphyry belt.  Drilling results atSalvadora - from 4 different targets so far - have convincedmanagement that several gold and copper enriched epithermal and/orporphyry style systems may be contained within the Salvadora property.

For further information, pleasecontact:

Terence (Terry) Walker, VP Exploration 

Email: twalker@goldenrock.cl

Ph: + 56 9 5179 5902

Or:

Roger Blair or Jeff Wilson, Acuity Advisory Corp.

Email: info@acuityadvisorycorp.com

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

Or:

Al Kroontje

Email: al@slgold.ca

Ph: +1 403 607 4009

Neither the TSX Venture Exchange norits Regulation Services Provider (as that term is defined in thepolicies of the TSX Venture Exchange) accepts responsibility for theadequacy or accuracy of this news release.

Cautionary Note RegardingForward-Looking Information

This news release may containforward-looking information that involves substantial known andunknown risks and uncertainties, most of which are beyond the controlof San Lorenzo.  All statements included herein otherthan statements of historical fact are forward-lookinginformation Suchforward-looking information involves various risks and uncertainties.There can be no assurance that such information will prove to beaccurate, and actual results and future events could differ materiallyfrom those anticipated in such information. Any forward-lookingstatements are made as of the date of this release and, other than asrequired by applicable securities laws, San Lorenzo does not assumeany obligation to update or revise them to reflect new events orcircumstances.

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