LAURION Extends Drilling into Untested Ground Linking Brenbar and Sturgeon River Mine Corridors at Ishkōday

Press Release

Toronto, Ontario – November 25, 2025 – LAURION Mineral Exploration Inc. (TSX.V: LME | OTC: LMEFF) (“LAURION” or the “Corporation”) is pleased to announce encouraging results from its 7,700-metre Summer 2025 drill exploration program at the 100%-owned Ishkõday Project, located 220 km northeast of Thunder Bay in Greenstone, Ontario. The first five drill results were announced in the Corporation’s press releases dated August 19, 2025 and September 23, 2025, respectively, 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 reported drill holes below, LME25-063, LME25-064, LME25-065 and LME25-066, total 1,806 m. The holes were designed to evaluate the northeast extension of the mineralized system at the historic Brenbar Mine, with hole LME25-063, and then stepping out to the northeast of the Brenbar historic mine shaft targeting the untested M50 Quartz vein series with further drill holes.

Highlights of Drill Holes LME25-063, LME25-065 and LME25-066

⦁ LME25-063 0.7 m @ 2.67 g/t Au from 139.50 m to 140.20 m;
⦁ LME25-063 0.5 m @ 1.26 g/t Au from 393.40 m to 393.90 m;
⦁ LME25-065 0.50 m @ 1.78 g/t Au from 91.10 m to 91.60 m;

⦁ LME25-065 1.80 m @ 0.95 g/t Au from 149.60 m to 151.40 m, including: 0.80 m @ 1.90 g/t Au from 150.60 m to 151.40 m;
⦁ LME25-065 0.50 m @ 1.32 g/t Au from 292,30 m to 292.80 m;
⦁ LME25-066 1.50 m @ 1.02 g/t Au from 272,50 m to 274.00 m; and
⦁ LME25-066 0.70 m @ 2.42 g/t Au and 1.90 Au/t from 389.0 m to 389.70 m.

“While these results represent the early stages of testing in a geologically complex corridor, their significance lies in extending our knowledge of mineralization continuity between the historic Brenbar and Sturgeon River Mine areas,” stated Cynthia Le Sueur-Aquin, President and CEO of LAURION. “This is the first time drilling has been completed across this untested structural corridor, and it is yielding valuable geological insight with oriented core, that will guide the next phase of our exploration program. Our focus remains on defining the broader mineralized system that links multiple historic mine zones, ultimately positioning Ishkōday as a district-scale gold and base metal opportunity.”

Table of Assays for Drill Holes for LME25-063 to LME25-066

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 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 (InductivelyCoupledPlasma – 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 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 274,097,283 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 procured in the short or medium terms. The Corporation will promptly issue a press release if any material change occurs.

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: info@laurion.ca

Website: http://www.LAURION.ca

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