LAURION Starts Defining Gold Mineralization North and Northeast of the Brenbar Shaft, Highlighting 2.68 g/t Au over 1.05 m from 117.6 m to 118.65 m

Toronto, Ontario – November 4, 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, LME25-061 and LME25-062, totalling 954 m were designed to evaluate the mineralized system at the historic Brenbar Mine area, stepping out to the north and northeast of the of the historic mine shaft.

Highlights of Drill Holes LME25-061 and LME25-062 LME25-061
⦁ 2.70 m @ 0.22 g/t Au from 152.6 m to 155.3 m

⦁ 2.50 m @ 0.20 g/t Au from 167.5 m to 170 m

⦁ 2.25 m @ 0.88 g/t Au from 213.85 m to 216.10 m, including 1.70 m @ 1.10 g/t Au from 214.4 m

LME25-062

⦁ 3.00 m @ 0.49 g/t Au from 304.0 m to 307 m, including 1.0 m @ 1.34 g/t Au from 304.0 m

⦁ 2.00 m @ 0.50 g/t Au from 111.0 m to 113.0 m, including 0.5 m @ 1.45 g/t Au from 111.80 m

⦁ 1.20 m @ 0.76 g/t Au from 105.7 m to 106.9 m, including 0.7 m @ 1.07 g/t Au from 105.7 m

⦁ 1.05 m @ 2.68 g/t Au from 117.6 m to 118.65 m, including 0.5 m @ 5.18 g/t Au from 118.15 m

⦁ 1.15 m @ 0.39 g/t Au from 310.7 m to 311.85 m
⦁ 1.10 m @ 1.63 g/t Au from 454.4 m to 455.5 m

These new intercepts not only confirm the continuity of gold-bearing structures near the Brenbar Shaft, but also demonstrate how far our understanding of Ishkõday has advanced since the early 2010 drilling campaigns,” said Cynthia Le Sueur-Aquin, President and CEO of LAURION Mineral Exploration Inc. “Our 2025 drill core is fully oriented, allowing precise structural interpretation and integration into our evolving 3D geological model — a critical step toward defining the geometry and scale of the mineralized system.”

The 2025 drill program targeted a cluster of complex folded gold-bearing vein structures in the Brenbar Shaft namely No 1, 2, 2A and No. 7 vein sets confirmed in historic drilling by Prodigy Gold Inc. (Jamie Solomon & Jerry Light, June 13, 2011). That work returned multiple higher-grade intercepts, including 3.77 g/t Au over 1.30 m and 1.33 g/t Au over 1.0 m in BB09-03, 5.50 g/t over 2.5 m, 1.39 g/t Au over 1.0 m and 1.47 g/t Au over 1.0 min BB09-04, 2.29 g/t Au over 1.10 m and 0.39 g/t Au over 15.90 m in BB09-09, 0.549 g/t Au over 12.50 m in BB09-10, and 1.56 g/t Au over 1.0 m, 0.51 g/t Au over 6.30 m, 3.26 g/t Au over 0.80 m and 0.66 g/t Au over 8.20 min BB10-27 which tested No. 15 Vein, #25 trench vein. The results confirm high-grade quartz-vein hosted gold within sheared volcanic rocks. They provide the basis for LAURION’s 2025 program to test continuity and strike length at Brenbar, and to collect oriented core for detailed structural analysis and 3D modeling.

Read More

NT4