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Laurion Announces Completion of Previously-Announced Private Placement of Flow-Through Units and Non Flow- Through Shares This News Release is Intended FOR Distribution in Canada Only and is Not Intended FOR Distribution to United States Newswire Services or Dissemination in

Financings Corporate Updates

LAURION ANNOUNCES COMPLETION OF PREVIOUSLY-ANNOUNCED

PRIVATE PLACEMENT OF FLOW-THROUGH UNITS AND NON FLOW-

THROUGH SHARES

THIS NEWS RELEASE IS INTENDED FOR DISTRIBUTION IN CANADA ONLY AND IS NOT

INTENDED FOR DISTRIBUTION TO UNITED STATES NEWSWIRE SERVICES OR DISSEMINATION IN

THE UNITED STATES.

TORONTO, ONTARIO - (June 17 , 20 26) – LAURION Mineral Exploration Inc. (TSX.V:

LME|OTC: LMEFF|FSE: 5YD) (“LAURION” or the “Corporation”) is pleased to announce that

it has closed the second and final tranche (the “ Second Tranche”) of its non -brokered

private placement (the “ Private Placement”) of flow-through units (the “FT Units ”) and

non flow-through common shares (the “Non-FT Shares”), which was originally announced

on May 25, 2026. Pursuant to the Second Tranche, the Corporation issued 333,333 Non-FT

Shares at a price of $0. 21 per share for aggregate gross proceeds of approximately

$70,000. The Corporation previously announced the closing of the first tranche of the

Private Placement (the “ First Tranche ”) on June 12, 2026, pursuant to which the

Corporation issued 3,576,946 FT Units at a price of $0.26 per FT Unit for aggregate gross

proceeds of approximately $930,006. In total, the Corporation has raised approximately

$1.0 million across both tranches of the Private Placement.

Each FT Unit consists of one common share of the Corporation (each, a “FT Share”) and

one common share purchase warrant (each, a “ Warrant”). Each Warrant entitles the

holder thereof to acquire one Non-FT Share at a price of $0.35 per share for a period of

24 months from the date of issuance. The FT Shares and Warrants comprising the FT Units

qualify as “flow-through shares”, as defined in s ubsection 66(15) of the Income Tax Act

(Canada) (the “Tax Act”).

The gross proceeds of the First Tranche will be used for “Canadian exploration expenses”

(within the meaning of the Tax Act), which will qualify, once renounced, as “flow-through

mining expenditures”, as defined in the Tax Act, which will be renounced with an

effective date of no later than Dec ember 31, 2026 (provided the subscriber deals at

arm’s length with the Corporation at all relevant times) to the initial purchasers of FT Units

in an aggregate amount not less than the gross proceeds raised from the issue of the FT

Units. LAURION intends t o allocate the gross proceeds from the issue of FT Units to

advance the Corporation’s 2026 drill program on the Ishkõday property. The Corporation

intends to use the net proceeds from the issue of Non -FT Shares for exploration activities

and general working capital purposes.

Pursuant to applicable Canadian securities laws, all securities issued pursuant to the

Private Placement are subject to a hold period of four months and one day from the

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applicable closing date, expiring on October 13, 2026 (for securities issued under the First

Tranche) or October 1 8, 2026 ( for securities issued under the Second Tranche), as

applicable. No finders ’ fees were paid in connection with the Second Tranche. The

Private Placement remains subject to the final approval of the TSX Venture Exchange

(the “TSXV”).

About LAURION Mineral Exploration Inc.

LAURION Mineral Exploration Inc. is listed on the TSX Venture Exchange (LME), OTC

(LMEFF), and Frankfurt Stock Exchange (5YD), and is a mid -stage Canadian mineral

exploration company, focused on advancing the 100% -owned Ishkōday Gold &

Polymetallic Project in Northern Ontario.

The Ishkōday Project covers approximately 57 km² within the prolific Beardmore –

Geraldton and Onaman–Tashota Greenstone Belts and hosts a district-scale mineralized

corridor extending more than six kilometres. Historical and modern exploration programs

have completed over 98,000 metres of drilling, confirming a large and evolving gold-rich

polymetallic mineral system.

LAURION’s strategy emphasizes disciplined, data -driven exploration, systematic

technical advancement, integrated geological modelling, and responsible capital

allocation. The Corporation is focused on strengthening geological confidence,

expanding the scale of the mineral system, and positioning the project for a future NI 43-

101 Mineral Resource Estimate (MRE). LAURION continues to evaluate opportunities that

may enhance project development flexibility, including potential non -dilutive initiatives

such as the evaluation of historical surface stockpile processing. The Corporation’s

objective is to build technical clarity, scale, and long -term project value before

monetization, ensuring that future development decisions or strategic opportunities are

supported by strong geological foundations and reduced execution risk.

Cynthia Le Sueur -Aquin, President and CEO of LAURION, is the Corporation’s largest

shareholder, holding 17,221,306 common shares, reflecting strong alignment between

management and shareholders.

FOR FURTHER INFORMATION, CONTACT:

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/)

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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 use of proceeds of the

Private Placement, the Corporation’s ability to advance, expand and/or develop the Ishkõday

Project (and achieve the Corporation’s technical and strategic objectives) and any possible

strategic alternatives and transactional opportunities that may arise and/or could be procured in

the future with respect to the Corporation. 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 TSXV

not providing its final approval for the Private Placement (including the payment of finders’

fees in connection therewith) or any strategic alternatives or transactional opportunities, the

interpretation and actual results of current exploration activities, future prices of gold and/or other

metals, and 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 additional

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.