LAURION Unlocks High-Grade Gold up to 16.00 g/t in West Vein Systems of the Sturgeon River Mine Area
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LAURION Unlocks High-Grade Gold up to 16.00 g/t in West Vein
Systems of the Sturgeon River Mine Area
Toronto, Ontario – September 23, 2025 – LAURION Mineral Exploration Inc. (TSX.V: LME |
OTC: LMEFF) (“LAURION” or the “ Corporation”) is pleased to announce encouraging
results from the second set of assay results from its ongoing 7,700 -metre 2025 drill
exploration program at the 100%-owned Ishkoday Project, located 220 km northeast of
Thunder Bay in Greenstone, Ontario. To date, approximately 93% of the previously-
announced drill program has been completed. The first three drill results were announced
in the Corporation’s press release dated August 19, 2025, which targeted the high-grade
gold-bearing vein systems of the Sturgeon River Mine area. Reference is also made to the
Corporation’s press releases dated September 5, 2025, May 27, 2025 and May 8, 2025.
The results reported below are part of a second drilling phase designed to evaluate new
potential zones to the west of the Sturgeon River Mine area and included the M24 and
M25 vein systems. The drill holes also tested the continuity of the M1 vein series and
associated structural corridors between the Sturgeon River Mine and Brenbar Mine areas.
Drill holes LME25 -058 and LME25-059 were collared 90 m east and 102 m west of the
previously reported LME24-049 hole (see the Corporation’s p ress release dated
December 11, 2024).
Highlights
Drill Hole LME25-059 (102 m west of LME24-049)
• 0.50 m grading 16.00 g/t Au and 8.20 g/t Ag from 275.30 m.
• 0.50 m grading 9.79 g/t Au and 4.80 g/t Ag from 271.75 m.
• 0.50 m grading 4.01 g/t Au and 1.30 g/t Ag from 396.70 m.
• 0.80 m grading 1.01 g/t Au and 2.60 g/t Ag from 332.00 m.
• 1.10 m grading 0.96 g/t Au and 0.73 g/t Ag, including 0.50 m grading 1.94 g/t Au
from 382.90 m.
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Drill Hole LME25-058 (90 m east of LME24-049)
• 0.75 m grading 3.13 g/t Au and 23.90 g/t Ag from 189.25 m.
• 2.00 m grading 1.81 g/t Au and 1.90 g/t Ag with 0.19% Cu from 205.00 m,
including:
0.50 m grading 4.61 g/t Au from 205.00 m; and
0.60 m grading 1.33 g/t Au, 5.30 g/t Ag and 0.64% Cu from 206.40 m.
• 1.00 m grading 1.92 g/t Au from 239.00 m.
• Additional anomalous mineralization intersected across multiple vein sets,
including 7.00 m grading 0.29 g/t Au from 105.00 m.
Exploration Significance
• Both holes (i.e. LME25-058 and LME25-059) confirm the presence of multiple
narrow, high-grade gold intercepts within broader mineralized envelopes.
• LME25-058 tested the M1, M21, M24 and M25 vein systems , demonstrating the
polymetallic character of the system with a few Cu intercepts.
• LME25-059 intersected multiple high-grade gold intercepts, validating continuity
along strike from LME24-049, which previously returned 3.50 m grading 2.08 g/t Au,
including 1.00 m at 6.60 g/t Au . These results reinforce the potential for stacked
high-grade veins within a structurally controlled corridor extending northeast from
the historic Sturgeon River Mine.
Management Commentary
Cynthia Le Sueur-Aquin, President and CEO of LAURION, commented: “With over 93% of
the 2025 drill program completed, the results from LME25-058 and LME25-059 continue to
highlight Ishkõday’s robust exploration potential. High- grade gold and silver intercepts,
combined with broader envelopes of anomalous mineralization, demonstrate both scale
and grade potential within the M-series veins. These results support our evolving 3D model
and the project’s capacity to host multiple mineralized zones.”
Next Steps
Drilling continues to focus on expanding mineralization within the M -series veins and
testing additional strike extensions northeast of the Sturgeon River Mine shaft. Results from
the remaining drill holes will be released as they become available.
Hole ID From (m) To (m) Core Length (m) Au (g/t)
LME25-058 36.70 37.70 1.00 0.51
LME25-058 44.00 46.50 2.50 0.38
LME25-058 55.00 56.50 1.50 0.25
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LME25-058 84.50 86.00 1.50 0.44
LME25-058 91.50 92.50 1.00 0.64
LME25-058 105.00 112.00 7.00 0.29
Including 107.50 112.00 4.50 0.40
Including 107.50 108.50 1.00 0.70
LME25-058 122.50 124.00 1.50 0.31
LME25-058 157.00 157.75 0.75 0.72
LME25-058 164.50 165.00 0.50 0.65
LME25-058 189.25 192.90 3.65 0.86
Including 189.25 191.00 1.75 1.42
Including 189.25 190.00 0.75 3.13
LME25-058 201.00 201.50 0.50 0.63
LME25-058 202.00 203.00 1.00 0.33
LME25-058 205.00 207.00 2.00 1.81
Including 205.00 205.50 0.50 4.61
Including 206.40 207.00 0.60 1.33
LME25-058 239.00 240.00 1.00 1.92
LME25-058 419.00 420.50 1.50 0.34
Hole ID From (m) To (m) Core Length (m) Au (g/t)
LME25-059 70.90 71.90 1.00 0.38
LME25-059 162.00 163.10 1.10 0.30
LME25-059 265.00 267.30 2.30 0.40
Including 266.80 267.30 0.50 1.36
LME25-059 271.75 272.25 0.50 9.79
LME25-059 275.30 275.80 0.50 16.00
LME25-059 321.80 322.30 0.50 1.60
LME25-059 332.00 332.80 0.80 1.01
LME25-059 382.90 384.00 1.10 0.96
Including 382.90 383.40 0.50 1.94
LME25-059 396.70 397.20 0.50 4.01
The drill holes were started from the locations and orientation provided in the table
below.
The interval widths reported are down -hole widths. The true widths of the mineralized
zones are not known at this time as there is insufficient information to determine the
orientation of the mineralization.
Drill Hole ID. Easting Northing Azimuth Dip Planned
(m)
Actual
(m)
Core
Size
LME25-058 443679 5510873 320 -50 500 503 NQ
LME25-059 443537 5510784 315 -50 500 456 NQ
Assay Turnaround Update
The Corporation wishes to advise shareholders that assay laboratories across the industry
are currently experiencing significantly increased sample volumes. As a result, the
turnaround time for assay results has extended to approximately eight (8) weeks from the
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date of sample delivery. L AURION continues to work closely with its laboratory partners
and will report results promptly upon receipt and validation.
Sampling and QA/QC Protocols
All drill core is transported 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 indivi dual 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
(InductivelyCoupledPlasma – AtomicElement-Spectroscopy). Over limit analyse s 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 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, P.Geo., 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 274,097,283 outstanding shares, of which approximately 73.6% are
owned and controlled by insiders who are 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 chief 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
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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
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 party advisors to explore any such potential alternatives and opportunities), as well as the potential
outcome(s) of this process, the possible impact of any potential 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 refer enced herein, and the timing of any
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 o pportunities, the interpretation and 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 Corporation’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 addi tional information on risks and uncertainties
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 values 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.