LAURION Launches 1,700-Metre Follow-Up Drill Program to Delineate and Expand Near-Surface Gold and Base-Metal Zones at Ishkōday

Press Release

Toronto, Ontario – October 28, 2025 – LAURION Mineral Exploration Inc. (TSX.V: LME | OTC: LMEFF I FSE: 5YD) (“LAURION” or the “Corporation is pleased to announce the commencement of a focused 1,700-metre diamond drill program at its 100%-owned Ishkōday Project, located approximately 220 kilometres northeast of Thunder Bay, near Greenstone, Ontario.

This focused program is designed to follow up on previously reported gold- and base metal-bearing zones Au-(Ag-Zn-Cu) intersected east of the Ishkōday Project, within the A-Zone and McLeod Zones. These near-surface zones represent compelling opportunities within the broader Ishkōday system and complement ongoing objectives towards better definition across the 6.0 km by 2.5 km corridor.

Highlights from Previously Reported Drill Programs

The following intersections, selected for context, collectively demonstrate the presence of a broader and continuous gold and base metal mineralization corridor across the eastern Ishkōday Project mineral system.

Gold Intercepts (Previously Reported):

⦁ LBX20-002: 125.90 m to 128.52 m — 2.62 m @ 11.98 g/t Au

⦁ LBX12-010: 46.16 m to 59.00 m — 12.84 m @ 3.31 g/t Au

⦁ LBX21-047: 160.00 m to 164.00 m — 4.00 m @ 2.53 g/t Au

⦁ LBX22-065: 175.30 m to 178.10 m — 2.80 m @ 2.12 g/t Au

⦁ LBX22-089: 72.00 m to 73.05 m — 1.05 m @ 5.91 g/t Au

⦁ LBX12-006: 138.80 m to 140.05 m — 1.25 m @ 4.24 g/t Au

⦁ LBX12-008: 64.00 m to 64.50 m — 0.50 m @ 7.13 g/t Au

Gold-Base Metal Intercepts (Previously Reported):

⦁ LBX20-001: 116.96 m to 141.50 m — 24.54 m @ 0.67 g/t Au, 6.40 g/t Ag and 1.50 % Zn

⦁ LBX20-003: 130.85 m to 194.78 m — 63.93 m @ 0.58 g/t Au, 6.10 g/t Ag and 1.92 % Zn

⦁ LBX20-005: 212.27 m to 213.67 m — 1.40 m @ 5.93 g/t Au, 97 g/t Ag and 8.42 % Zn

⦁ LBX20-006: 81.38 m to 92.20 m — 10.82 m @ 0.65 g/t Au, 3.89 g/t Ag and 1.09 % Zn (including 1.25 m @ 1.43 g/t Au and 5.30 % Zn)

⦁ LBX20-010: 67.10 m to 67.80 m — 0.70 m @ 15.6 g/t Au, 73 g/t Ag and 14.5 % Zn

Channel samples include 7.50 m @ 0.90 g/t Au, 35 g/t Ag, 0.53 % Cu; and 5.71 % Zn and 1.11 m @ 4.97 g/t Au, 8.00 g/t Ag and 1.35 % Zn- 445496E 5512267N.

All technical results referenced below have been disclosed in prior LAURION news releases available on www.laurion.ca and on SEDAR+. Please refer to press releases dated 24 September 2019, 18 October 2019, 25 October 2019, 29 May 2020, 24 June 2020 and 15 July, 2022

The A-Zone and McLeod Zone remain under-explored areas, hosting consistent gold and zinc-rich mineralization within sheared, sulphide rich and quartz-veined volcanic sequences. Together with the Sturgeon River Mine and Brenbar corridors, these areas define a 6.0 km by 2.5 km kilometre-long structural trend that remains open at depth.

“This is an exciting, unanticipated addition to our 2025 exploration plans,” said Cynthia Le Sueur-Aquin, President & CEO of LAURION. “While our principal focus remains the Sturgeon River Mine and Brenbar corridors, this targeted program also reflects the growing importance of the A-Zone and McLeod Zone in shaping Ishkõday Project’s near-surface gold and base metal potential. Building upon current technical input of our evolving 3D model, we’re laying the groundwork for future resource definition and valuation growth across multiple zones.”

Next Steps and 2026 Exploration Objectives

Drilling under the current 1,700-metre follow-up program is scheduled to commence in late October 2025, with assay results released as will be received. All data will be incorporated into LAURION’s evolving 3D geological model to refine targeting across the A-Zone, McLeod Zone, and Sturgeon River Mine and Brenbar areas.

Looking ahead to 2026, LAURION plans an expanded 7,000 – 10,000 metre multi-phase drill campaign with objectives to advance near-surface resource definition, drill deeper extensions beneath the Sturgeon River and Brenbar mine as areas, the east side of the Ishkōday Project and expand structural and geochemical coverage.

This next-phase campaign will provide the technical foundation for LAURION’s future resource-growth and valuation-enhancement strategy is designed to leverage and position the Ishkōday Project for future resource definition and development milestones.

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 Base Metal 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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