MONTREAL, June 10, 2026 – Brunswick Exploration Inc. (TSX-V: BRW, OTCQB: BRWXF; FRANKFURT:1XQ; “BRW” or the “Company”) has released final assay results from its 2026 Winter drilling campaign at the Anatacau Main Project. The results underscore the exceptional lateral continuity of the main Anais dyke, with step-out drilling intersecting multiple large, well-mineralized pegmatites.
Key Highlights
- The largest pegmatite, the Anais Main dyke, remains open in all directions after step-out hole AN-26-12 intercepted 1.13% Li2O over 27.4 meters at shallow depths.
- The mineralized dyke system has been delineated over approximately 350 meters wide by 600 meters long, remaining open in all directions.
- Further drilling is planned in late Q3 to expand mineralization.
Mr. Killian Charles, President and CEO of BRW, commented: “Anatacau is rapidly shaping up to be one of the most exciting new discoveries in the James Bay region. After every drilling campaign at Anatacau, we continue to grow the footprint of the pegmatite dyke system with several intervals occurring over substantial widths, highlighting the scale and exploration potential of Anatacau. We now strongly believe that Anatacau is starting to show the same potential as our Mirage project. This unique combination of two highly promising projects demonstrates BRW ability to continue to make impactful discoveries across its portfolio. We look forward to returning to Anatacau in late Q3-2026 following the completion of our forthcoming drill campaign at Mirage.”
Table 1: Mineralized Highlights from All Drilling at Anatacau Main
Hole ID: AN-25-05* – From: 30.3m, To: 151.0m, Length: 120.7m, Li2O: 1.31%, Ta2O5: 112 ppm, Cs2O: 0.09%
Hole ID: AN-26-07* – From: 124.7m, To: 292.6m, Length: 167.9m, Li2O: 1.02%, Ta2O5: 84 ppm, Cs2O: 0.05%
Including: From: 202.1m, To: 292.6m, Length: 90.5m, Li2O: 1.31%, Ta2O5: 165 ppm, Cs2O: 0.03%
Including: From: 202.1m, To: 260.6m, Length: 58.5m, Li2O: 1.60%, Ta2O5: 83 ppm, Cs2O: 0.03%
Hole ID: AN-26-12 – From: 114.6m, To: 142.0m, Length: 27.4m, Li2O: 1.13%, Ta2O5: 124 ppm, Cs2O: 0.03%
Including: From: 117.9m, To: 130.3m, Length: 12.4m, Li2O: 1.42%, Ta2O5: 155 ppm, Cs2O: 0.02%
Including: From: 134.6m, To: 140.0m, Length: 5.4m, Li2O: 1.39%, Ta2O5: 127 ppm, Cs2O: 0.02%
Note: The true thickness of the Anais dyke is estimated to be approximately 70% of reported intervals. *Previously reported intercept.
Geology Overview
The area surrounding the Anais Main dyke forms an extensive mineralized system that has now been drill-traced over more than 350 meters by 600 meters. The mineralized system is mostly hosted within highly folded and sheared mafic-volcanic and metasedimentary rocks. Drilling in the area has consistently intersected high grade lithium mineralization and, in some cases, also intersected pegmatites highly enriched in cesium and tantalum, with all types of mineralization occurring over substantial widths.
Within this rapidly growing system, seven mineralized dykes exceeding 10 meters in width have been identified with the largest being the Anais Main dyke. All intersected mineralized pegmatites remain open in all directions.
