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LAURION Intersects 9.16 g/t Gold over 0.80 Metres and Releases Results for the First Three Drill Holes at Sturgeon River Mine Area

Drill Results

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LAURION Intersects 9.16 g/t Gold over 0.80 Metres and Releases

Results for the First Three Drill Holes at Sturgeon River Mine Area

TORONTO, Ontario – August 19, 2025 – LAURION Mineral Exploration Inc. (TSXV: LME |

OTCPINK: LMEFF) (“LAURION” or the “Corporation”) reports encouraging initial results from

the first three diamond drill holes of its previously announced 2025 drill program at the

Ishkõday Project, located 220 km northeast of Thunder Bay, Ontario. Further to the

Corporation’s press releases dated May 8, 2025 and May 27, 2025, drilling began in mid-

May and is part of a 7,000-metre campaign targeting the high-grade gold-bearing vein

systems of both the Brenbar and Sturgeon River Mine areas.

Highlights from the first three drill holes at the Sturgeon River Mine area include:

• LME25-060: 9.16 g/t Au over 0.80 m from 272.70 m to 273.50 m

• LME25-060: 3.16 g/t Au over 1.00 m from 583.80 m to 584.30 m

• LME25-060: 3.13 g/t Au over 1.00 m from 379.00 m to 380.00 m

• LME25-056: 3.07 g/t Au over 0.50 m from 609.50 m to 610.00 m

• LME25-056: 3.03 g/t Au over 0.60 m from 595.20 m to 595.80 m

• LME25-057: 1.31 g/t Au over 0.50 m from 536.50 m to 537.00 m

These interc epts confirm the continuity of multiple gold -bearing vein sets within the

Sturgeon River Mine corridor, with significant grades encountered from near -surface

zones to depths exceeding 600 metres. The results support the potential for both discrete

high-grade shoots and broader mineralized envelopes along strike and at depth.

Drill Program Context

The 2025 program is designed to:

• Test depth extensions beneath historic workings;

• In-fill drill to improve geological continuity.

• Extend strike to the north and south; and

• Evaluate new zones to the northwest, including the M24 and M25 vein systems.

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The first three drill holes, totaling 2,151 metres, successfully intersected both known and

previously untested structures.

• LME25-060 (northwest of the shaft) targeted the No. 21 Vein and the principal No.

1, No. 2, and No. 3 Veins historically mined at Sturgeon. All mineralized intercepts

for hole LME25-060 are set forth below.

Hole ID From (m) To (m) Core Length (m) Au (g/t)

LME25-060 18.0 21.0 3 0.52

Including 18.0 19.0 1.0 1.01

LME25-060 116.8 119.1 2.3 0.35

Including 117.4 118.0 0.6 0.61

LME25-060 170.0 170.6 0.6 0.68

LME25-060 218.0 219.5 1.5 0.41

LME25-060 272.7 273.5 0.8 9.16

LME25-060 329.0 332.4 3.4 0.19

LME25-060 378.5 380.0 1.5 2.12

including 379.0 380.0 1.0 3.13

LME25-060 403.0 407.0 4.0 0.21

LME25-060 574.3 547.8 0.5 2.30

LME25-060 583.2 586.2 3.0 1.34

including 583.8 584.3 1.0 3.16

• LME2025-057 (southwest of the shaft) tested the No. 1, No. 2, and No. 3 Veins and

the Bootlegger Vein, a previously untested southern structure. The table below

describes all the different mineralized intercepts from this hole.

Hole ID From (m) To (m) Core Length (m) Au (g/t)

LME25-057 169.5 170.0 0.5 0.56

LME25-057 382.5 383.2 0.7 0.75

LME25-057 446.0 447.0 1.0 0.66

LME25-057 484.3 485.5 1.2 0.26

including 484.9 485.5 0.6 0.36

LME25-057 487.1 487.6 0.5 1.20

LME25-057 535.3 537.0 1.7 0.43

including 536.5 537.0 0.5 1.31

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• LME25-056 (east of the shaft) intersected the northeast-striking Veins No. 8 and No.

11, the Coniagas Vein, and crossed the No. 1, No. 2, and No. 3 Veins. The table

below contains the different mineralized highlights from this drill hole.

Hole ID From (m) To (m) Core Length (m) Au (g/t)

LME25-056 134.6 135.5 0.9 0.38

LME25-056 178.35 178.9 0.55 1.66

LME25-056 324.35 324.85 0.5 2.88

LME25-056 326.4 327.0 0.6 1.34

LME25-056 334.9 337.8 2.9 0.19

including 334.9 335.6 0.7 0.61

LME25-056 480.75 484.6 3.85 0.24

LME25-056 483.55 484.6 1.05 0.64

including 484.05 484.6 0.55 1.11

LME25-056 493.25 497.35 4.1 0.38

including 494.7 496.5 1.8 0.61

LME25-056 496.0 496.5 0.5 1.01

LME25-056 518.0 518.5 0.5 1.63

LME25-056 552.75 554.4 1.65 0.53

including 552.75 553.5 0.75 0.97

LME25-056 595.2 595.8 0.6 3.03

LME25-056 604.5 606.0 1.5 0.37

LME25-056 609.0 610.0 1.0 1.68

including 609.5 610.0 0.5 3.07

LME25-056 616.85 622.3 5.45 0.92

including 619.75 622.3 2.55 1.18

The drill holes were started from the locations and orientation given in the table below.

Hole ID Easting Northing Elevation Azimuth Dip Core

Size

LME25-056 444505 5511075 317 275 -71 NQ

LME25-057 443952 5510877 322 130 -45 NQ

LME24-060 443742 5511084 322 330 -50 NQ

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Management Commentary

“The first three holes have validated our geological model and confirmed that key gold-

bearing structures extend along strike and at depth ,” said Cynthia Le Sueur -Aquin,

President and CEO of LAURION . “These results build momentum for the balance of the

program as we continue to test high -priority targets within the Sturgeon River Mine

corridor.”

Exploration Strategy

The drill program is supported by deep -penetrating DCIP and magnetotelluric (MT)

geophysical surveys combined with strong a geological model, which have highlighted

resistivity and chargeability features interpreted to be associated with quartz veining,

sulphide mineralization, and major structural corridors.

LAURION remains committed to its systematic, data -driven approach to advancing the

Ishkõday Project with disciplined execution and positioning the asset for future growth.

Corporate Update

Since engaging US Capital Global Partners (“USCGP”), LAURION’s path has evolved, and

LAURION has significantly expanded its strategic review and financial network to align

with its advancing growth trajectory and transaction readiness. This evolution reflects our

confidence in the strength of the Ishkõday asset and the depth and agility of our

leadership team. Active engagement with several qualified third parties further supports

our commitment to exploring strategic opportunities in the best interests of the

Corporation and its stakeholders.

Sampling and QA/QC Protocols

All drill core is tran sported and stored inside the core facility located at the Ishkõday

Project in Greenstone, Ontario. LAURION employs an industry standard system of external

standards, blanks and duplicates for all of its sampling, in addition to the QA/QC protocol

employed by the laboratory. After logging, core samples were identified and then cut in

half along core axis in the same building, and then zip tied individually in plastic sample

bags with a bar code. Approximately five or six of these individual bags were then

stacked into a “ rice” white material bag and stored on a skid for final shipment to the

laboratory. All core samples were shipped to the ALS facility in Thunder Bay, Ontario,

which were then prepared by ALS Global Geochemistry in Thunder Bay and analyzed by

ALS Global Analytical Lab in North Vancouver, British Columbia. Samples are processed

by 4-acid digestion and analyzed by fire assay on 50 g pulps and ICP -AES (Inductively-

CoupledPlasma – AtomicElement-Spectroscopy). Over limit analyses are reprocessed

with gravimetric finish. A total of 5% blanks and 5% standard are inserted randomly within

all samples. 5% of the best assay result pulps were sent for re -assays. All QAQC were

verified, and no contamination or bias have been observed. The remaining half of the

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core, as well as the unsampled core, is stored in temporary core racks at the core logging

facility in Beardmore, and moved to the core storage facility at the Ishkõday Project.

Qualified Person

The technical contents of this release were reviewed and approved by Jean -Philippe

Paiement, PGeo, MSc, a consultant to LAURION, and a qualified person as defined by

National Instrument 43-101 – Standards of Disclosure for Mineral Projects.

About LAURION Mineral Exploration Inc.

The Corporation is a mid -stage junior mineral exploration and development company

listed on the TSXV under the symbol LME and on the OTCPINK under the symbol LMEFF.

LAURION now has 274,012,283 outstanding shares, of which approximately 73.6% are

owned and controlled by insiders who a re eligible investors under the “Friends and

Family” categories.

LAURION's emphasis is on the exploration and development of its flagship project, the

100% owned mid- stage 57 km2 Ishkõday Project, and its gold -rich polymetallic

mineralization. LAURION’s ch ief priority remains maximizing shareholder value. A large

portion of the Corporation’s focus in this regard falls within the scope of its mineral

exploration activities and more specifically, advancing the Ishkõday Project.

A consequence of LAURION’s success and advancement over the past several years is

that the Corporation has become positioned as an acquisition target for appropriate

potential acquirors. Accordingly, the Corporation’s Board of Directors is aware that

possible strategic alternatives and transactional opportunities may arise and/or could be

procured in the short or medium terms. The Corporation will promptly issue a press release

if any material change occurs.

LAURION Mineral Exploration Inc.

Cynthia Le Sueur-Aquin – President and CEO

Tel: 1-705-788-9186 Fax: 1-705-805-9256

Douglas Vass - Investor Relations Consultant

Email: [email protected]

Website: http://www.LAURION.ca

Follow us on X (@LAURION_LME), Instagram (laurionmineral) and LinkedIn

(https://www.linkedin.com/in/cynthia-le-sueur-aquin-laurion-lme-04b03017/)

Caution Regarding Forward-Looking Information

This press release contains forward-looking statements, which reflect the Corporation’s current expectations

regarding future events including with respect to LAURION's business, operations and condition,

management's objectives, strategies, beliefs and intentions, the Corporation’s ability to advance the

Ishkõday Project, the nature, focus, timing and potential results of the Corporation’s exploration, drilling and

prospecting activities in 2025 and beyond, including the Corporation’s diamond drill program described in

this press release and the Corporation’s other planned activities for the Ishkõday Project for the remainder of

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2025, and the statements regarding the Corporation’s exploration or consideration of any possible strategic

alternatives and transactional opportunities (including, without limitation, the Corporation’s engagement of

third parties like USCGP to explore any such potential alternatives and opportunities), as well as the potential

outcome(s) of this process, the possible impact of any p otential transactions referenced herein on the

Corporation or any of its stakeholders, and the ability of the Corporation to identify and complete any

potential acquisitions, mergers, financings or other transactions referenced herein, and the timing of an y

such transactions. The forward -looking statements involve risks and uncertainties. Actual events and future

results, performance or achievements expressed or implied by such forward -looking statements could differ

materially from those projected herein including as a result of a change in the trading price of the common

shares of LAURION, the TSX Venture Exchange or any other applicable regulator not providing its approval

for any strategic alternatives or transactional opportunities, the interpretation a nd actual results of current

exploration activities, changes in project parameters as plans continue to be refined, future prices of gold

and/or other metals, possible variations in grade or recovery rates, failure of equipment or processes to

operate as anticipated, the failure of contracted parties to perform, labor disputes and other risks of the

mining industry, delays in obtaining governmental approvals or financing or in the completion of exploration,

as well as those factors disclosed in the Corporat ion’s publicly filed documents. Investors should consult the

Corporation’s ongoing quarterly and annual filings, as well as any other additional documentation

comprising the Corporation’s public disclosure record, for additional information on risks and un certainties

relating to these forward -looking statements. The reader is cautioned not to rely on these forward -looking

statements. Subject to applicable law, the Corporation disclaims any obligation to update these forward-

looking statements. All sample va lues are from grab samples and channel samples, which by their nature,

are not necessarily representative of overall grades of mineralized areas. Readers are cautioned to not place

undue reliance on the assay values reported in this press release.

NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICE PROVIDER (AS THAT TERM IS DEFINED IN

THE POLICIES OF THE TSX VENTURE EXCHANGE) ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY

OF THE CONTENT OF THIS NEWS RELEASE.