LAURION Stories A number of Excessive-Grade Intercepts, Together with 15.35 g/t Au over 0.50 m , 7.30 g/t Au over 0.50 m , and a Broad 3.0 m Interval of 1.09 g/t Au

(TheNewswire)

Toronto, Ontario TheNewswire – December 3, 2025 Laurion Mineral Exploration Inc. (TSX.V: LME | OTC: LMEFF | FSE: 5YD) (“LAURION” or the “Company”) is happy to announce assay outcomes from 4 diamond drill holes ( LME25-067 to LME25-070 ) accomplished as a part of the Company’s 2025 exploration drilling program on the 100%-owned Ishkōday Venture situated close to Greenstone, Ontario. These outcomes proceed to substantiate the presence of stacked, high-grade orogenic gold veins inside the rising Marge–Allard multi-vein hall northeast of the M21–M24–M25 trenching and Sturgeon River Mine.

The 2025 drill program, which was initially introduced by the Company on Could 8, 2025, comprised 15 drill holes totaling 7,586 metres , bringing cumulative drilling at Ishkōday to 99,834 metres in 470 drill holes . Assay outcomes for the 11 different holes accomplished pursuant to the drill program have been beforehand introduced on August 19, 2025, September 23, 2025, November 4, 2025 and November 25, 2025 . This press launch reviews the ultimate 1,716 metres of 2025 drilling (holes LME25-067 via LME25-070), finishing disclosures for the 12 months’s program within the Sturgeon River-Brenbar hall.

The outcomes from these 4 (4) drill holes comprise the best grade intercepts for this season along with sturdy continuity of close to floor veins. These outcomes collectively show constant high-grade mineralization throughout a number of stacked gold-bearing constructions, confirming the robustness of the Marge–Allard hall.

HIGHLIGHTS OF GOLD AND SILVER INTERCEPTS

(All intervals reported are downhole lengths; true widths aren’t identified presently.)

• LME25-069: 0.5 m @ 15.35 g/t Au from 450.9 m to 451.4 m

• LME25-069: 3.0 m @ 1.09 g/t Au from 134.0 m to 137.0 m , together with: 0.5 m @ 3.89 g/t Au from 136.5 m to 137.0 m

• LME25-069: 1.1 m @ 4.14 g/t Au from 738.0 m to 739.1 m , together with: 0.5 m @ 7.30 g/t Au from 738.6 m to 739.1 m

• LME25-069: 0.5 m @ 3.67 g/t Au from 463.2 m to 463.7 m

• LME25-067: 0.7 m @ 11.40 g/t Au from 235.6 m to 236.3 m , inside: 1.3 m @ 5.64 g/t Au from 235.0 m to 236.3 m

• LME25-068: 0.50 m @ 1.04 g/t Au from 154.5 m to 155.0 m

GEOLOGICAL CONTEXT AND SIGNIFICANCE

The 4 holes reported at this time focused the jap extension of the Marge–Allard vein system , a multi-vein area located roughly 700 metres north of the historic Sturgeon River Mine . The world hosts a community of gold-bearing quartz veins together with:

• Marge Vein and Marge vein units (MPA, MPB, MPG)

• Allard Vein

• F and X veins

• 85-3, 85-3C, and M58 veins

Concerning historic work:

• Phoenix Gold Mines (1984) channel sampled the Marge Vein over 154 metres strike size with subsequent trenching and mapping extending the vein to 297 metres in strike size. Moreover, a number of close by veins (F, X, Allard) additionally yielding seen gold and high-grade assays. (L.O. Koskitalo – Phoenix Gold Mine Venture Geologist – 1988.)

The 2025 drilling outcomes reinforce the interpretation of this space as a multi-vein, structurally managed gold system with potential for plunging high-grade shoots extending down-dip and alongside strike. Particularly, drill holes LME25-067 and LME25-069 show that high-grade mineralization persists each close to floor and at vital depths (to >700 m), with vein stacking offering cumulative gold potential.

” With the 2025 drill program now absolutely reported, LAURION will combine the brand new information into its 3D geological and structural mannequin for Ishkōday. LAURION will proceed its give attention to the Sturgeon River–Brenbar Hall in addition to the A-Zone-CRK hall in step with its 2026–2027 Strategic Working Plan. Work will embrace structural consolidation and 3D modelling, adopted by plunge-oriented drilling to guage continuity of high-grade D2-controlled shoots recognized in our drill packages. This program will refine high-priority drill targets and advance structural understanding throughout the Ishkōday Venture , ” said Cynthia Le Sueur-Aquin, President and CEO of LAURION.

TABLE OF DRILL HOLES FOR LME25-067 to LME25-070

Notice : Intervals symbolize core size. The interval widths reported are down-hole widths. The true widths of the mineralized zones aren’t identified presently as there’s inadequate info to find out the orientation of the mineralization.

Sampling and QA/QC Protocols

All drill core is transported and saved contained in the core facility situated on the Ishkõday Venture in Greenstone, Ontario. LAURION employs an trade customary system of exterior requirements, blanks and duplicates for all of its sampling, along with the QA/QC protocol employed by the laboratory. After logging, core samples have been recognized after which minimize in half alongside core axis in the identical constructing after which zip tied individually in plastic pattern luggage with a bar code. Roughly 5 or 6 of those particular person luggage have been then stacked right into a “rice” white materials bag and saved on a skid for closing cargo to the laboratory.

All core samples have been shipped to the ALS facility in Thunder Bay, Ontario, which have been then ready by ALS World Geochemistry in Thunder Bay and analyzed by ALS World Analytical Lab in North Vancouver, British Columbia. Samples are processed by 4-acid digestion and analyzed by fireplace assay on 50 g pulps and ICP-AES (InductivelyCoupledPlasma – AtomicElement-Spectroscopy). Over restrict analyses are reprocessed with gravimetric end.

A complete of 5% blanks and 5% customary are inserted randomly inside all samples. 5% of the very best assay consequence pulps have been despatched for re-assays. All QA/QC have been verified, and no contamination or bias have been noticed. The remaining half of the core, in addition to the unsampled core, is saved in short-term core racks on the core logging facility in Beardmore and moved to the core storage facility on the Ishkõday Venture.

Certified Individual

The technical contents of this launch have been reviewed and authorized by Jean-Philippe Paiement, PGeo, MSc, a guide to LAURION and a Certified Individual as outlined by Nationwide Instrument 43-101 – Requirements of Disclosure for Mineral Initiatives .

About LAURION Mineral Exploration Inc.

The Company is a mid-stage junior mineral exploration and growth firm listed on the TSXV below the image LME and on the OTCPINK below the image LMEFF. LAURION now has 274,097,283 excellent shares, of which roughly 73.6% are owned and managed by insiders who’re eligible traders below the “Mates and Household” classes.

LAURION’s emphasis is on the exploration and growth of its flagship mission, the 100% owned mid-stage 57 km 2 Ishkõday Venture, and its gold-rich polymetallic mineralization.

LAURION’s chief precedence stays maximizing shareholder worth. A big portion of the Company’s focus on this regard falls inside the scope of its mineral exploration actions and extra particularly, advancing the Ishkõday Venture. A consequence of LAURION’s success and development over the previous a number of years is that the Company has turn out to be positioned as an acquisition goal for acceptable potential acquirors. Accordingly, the Company’s Board of Administrators is conscious that attainable strategic alternate options and transactional alternatives might come up and/or might be procured within the brief or medium phrases. The Company will promptly challenge a press launch if any materials change happens.

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 Advisor

Electronic mail: information@laurion.ca

Web site: http://www.LAURION.ca

Comply with us on: X (@LAURION_LME ), Instagram (laurionmineral) and LinkedIn ( )

Warning Concerning Ahead-Trying Info

This press launch accommodates forward-looking statements, which replicate the Company’s present expectations relating to future occasions together with with respect to LAURION’s enterprise, operations and situation, administration’s targets, methods, beliefs and intentions, the Company’s skill to advance the Ishkõday Venture, the character, focus, timing and potential outcomes of the Company’s exploration, drilling and prospecting actions in 2025 and past, together with the Company’s diamond drill program described on this press launch and the Company’s different deliberate actions for the Ishkõday Venture for the rest of 2025, and the statements relating to the Company’s exploration or consideration of any attainable strategic alternate options and transactional alternatives, in addition to the potential end result(s) of this course of, the attainable influence of any potential transactions referenced herein on the Company or any of its stakeholders, and the flexibility of the Company to establish and full any potential acquisitions, mergers, financings or different transactions referenced herein, and the timing of any such transactions. The forward-looking statements contain dangers and uncertainties. Precise occasions and future outcomes, efficiency or achievements expressed or implied by such forward-looking statements might differ materially from these projected herein together with on account of a change within the buying and selling worth of the frequent shares of LAURION, the TSX Enterprise Change or another relevant regulator not offering its approval for any strategic alternate options or transactional alternatives, the interpretation and precise outcomes of present exploration actions, modifications in mission parameters as plans proceed to be refined, future costs of gold and/or different metals, attainable variations in grade or restoration charges, failure of apparatus or processes to function as anticipated, the failure of contracted events to carry out, labor disputes and different dangers of the mining trade, delays in acquiring governmental approvals or financing or within the completion of exploration, in addition to these components disclosed within the Company’s publicly filed paperwork. Traders ought to seek the advice of the Company’s ongoing quarterly and annual filings, in addition to another further documentation comprising the Company’s public disclosure file, for extra info on dangers and uncertainties relating to those forward-looking statements. The reader is cautioned to not depend on these forward-looking statements. Topic to relevant regulation, the Company disclaims any obligation to replace these forward-looking statements. All pattern values are from seize samples and channel samples, which by their nature, aren’t essentially consultant of general grades of mineralized areas. Readers are cautioned to not place undue reliance on the assay values reported on this press launch.

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.

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