LAURION Reports Multiple High-Grade Intercepts, Including15.35 g/t Au over 0.50 m (450.9–451.4 m), 7.30 g/t Au over 0.50 m (738.6–739.1 m), and a Broad 3.0 m Interval of 1.09 g/t Au (134.0–137.0 m)
Press Release
Toronto, Ontario – December 3, 2025 – LAURION Mineral Exploration Inc. (TSX.V: LME |
OTC: LMEFF | FSE: 5YD) (“LAURION” or the “Corporation”) is pleased to announce assay results from four diamond drill holes (LME25-067 to LME25 -070) completed as part of the Corporation’s 2025 exploration drilling program at the 100%-owned Ishkōday Project located near Greenstone, Ontario. These results continue to confirm the presence of stacked, high-grade orogenic gold veins within the emerging Marge–Allard multi-vein corridor, northeast of the M21–M24–M25 trenching and Sturgeon River Mine.
The 2025 drill program, which was originally announced by the Corporation on May 8, 2025, comprised 15 drill holes totaling 7,586 metres, bringing cumulative drilling at Ishkōday to 99,834 metres in 470 drill holes. Assay results for the 11 other holes completed pursuant to the drill program were previously announced on August 19, 2025, September 23, 2025, November 4, 2025 and November 25, 2025. This press release reports the final 1,716 metres of 2025 drilling (holes LME25-067 through LME25-070), completing disclosures for the year’s program in the Sturgeon River-Brenbar corridor.
The results from these four (4) drill holes comprise the highest grade intercepts for this season together with strong continuity of near surface veins. These results collectively demonstrate consistent high-grade mineralization across multiple stacked gold-bearing structures, confirming the robustness of the Marge–Allard corridor.
HIGHLIGHTS OF GOLD AND SILVER INTERCEPTS
(All intervals reported are downhole lengths; true widths are not known at this time.)
⦁ 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, including: 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, including: 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, within: 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 four holes reported today targeted the eastern extension of the Marge–Allard vein system, a multi-vein domain situated approximately 700 metres north of the historic Sturgeon River Mine. The area hosts a network of gold-bearing quartz veins including:
⦁ Marge Vein and Marge vein sets (MPA, MPB, MPG)
⦁ Allard Vein
⦁ F and X veins
⦁ 85-3, 85-3C, and M58 veins
Regarding historical work:
⦁ Phoenix Gold Mines (1984) channel sampled the Marge Vein over 154 metres strike length with subsequent trenching and mapping extending the vein to 297 metres in strike length. Furthermore, several nearby veins (F, X, Allard) also yielding visible gold and high-grade assays. (L.O. Koskitalo – Phoenix Gold Mine Project Geologist
– 1988.)
⦁ LAURION’s own stripping and channel sampling in 2008 returned 16.97 g/t Au over 0.47 m across 47 metres of exposed Marge Vein strike length. (Report on Grab Sampling and Diamond Drilling programs – 2015 – Dr. Neil Westoll.)
The 2025 drilling results reinforce the interpretation of this area as a multi-vein, structurally controlled gold system with potential for plunging high-grade shoots extending down-dip and along strike. In particular, drill holes LME25-067 and LME25-069 demonstrate that high-grade mineralization persists both near surface and at significant depths (to >700 m), with vein stacking providing cumulative gold potential.
“With the 2025 drill program now fully reported, LAURION will integrate the new data into
its 3D geological and structural model for Ishkōday. LAURION will continue its focus on the Sturgeon River–Brenbar Corridor as well as the A-Zone-CRK corridor in line with its 2026–
2027 Strategic Operating Plan. Work will include structural consolidation and 3D modelling, followed by plunge-oriented drilling to evaluate continuity of high-grade D2-controlled shoots identified in our drill programs. This program will refine high-priority drill
targets and advance structural understanding across the Ishkōday Project,” stated Cynthia Le Sueur-Aquin, President and CEO of LAURION.
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