Announcement • Jun 14
Brunswick Exploration Inc. Announces Board Changes Brunswick Exploration Inc. at its AGM held on June 11, 2026 approved election of Steven Bowles and Isabelle Cadieux as directors. Pierre Colas and Jeffrey Hussey did not stand for re-election at the AGM and, consequently, ceased to be directors upon the close of that meeting. Announcement • Jun 10
Brunswick Exploration Reports Final Assay Results from 2026 Winter Drilling Campaign At Anatacau Main Project Brunswick Exploration Inc. has reported final assay results from the 2026 Winter drilling campaign at the Anatacau Main Project. The largest pegmatite, the Anais Main dyke, remains open in all directions after another step-out hole intercepted 1.13% Li2O over 27.4 meters in AN-26-12 at very shallow depths. The mineralized dyke system has been delineated over an area of approximately 350 meters wide by 600 meters long, and the system remains open in all directions. Significant opportunity to expand mineralization in further drilling planned in late Third Quarter. 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. The Anais Main dyke is interpreted to be gently folded, oriented North-South to Northeast-Southwest, dipping at 85° to the West. To date, this dyke measures 350 meters along strike to a vertical depth of 200 meters and a width of approximately 40 meters. The surrounding several mineralized dykes are interpreted to be stacked, subparallel, and steeply dipping toward the west, and are all hosted within the same structural corridor that hosts Rio Tinto’s Galaxy Project (54.3 Mt M&I at 1.30% Li2O and 55.9 Mt Inferred at 1.29% Li2O) and Brunswick Exploration Inc.'s Anatacau West Project, which is immediately contiguous to Rio Tinto’s claim package and located approximately 20 kilometers west of the Anais Main dyke. Hole AN-26-12 collared into a mineralized pegmatite and intersected six well-mineralized, stacked pegmatite dykes, including a continuous interval of lithium mineralization of 27.4 meters grading 1.13% Li2O at a very shallow vertical depth of 90 meters. This interval appears to correlate with the Anais Main dyke, located approximately 80 meters to the Northeast, which has now been continuously intersected over large widths by drilling over a strike length of 350 meters. Holes AN-26-11 and AN-26-13 were drilled in a wide fence pattern, to evaluate the extreme eastward extension of the mineralized system. It was interpreted that both holes were drilled outside of the deformation corridor which hosts mineralization at Anatacau. Nonetheless, the holes still intersected several highly fractioned pegmatites. While no significant lithium values were reported, assays returned elevated cesium and tantalum values which, when combined with low K/Rb ratios in the pegmatites, confirms that the pegmatite system remains fractionated even outside the structural corridor significantly expanding the exploration potential surrounding the Anais Main dyke area. Brunswick Exploration Inc. has now reported all results from its 2026 winter drilling campaign, which comprised seven drill holes totaling over 1,800 meters. Following these encouraging drilling results, Brunswick Exploration Inc. is now planning further drilling in late Third Quarter following a drilling campaign at Mirage. The true thickness of the Anais dyke is estimated to be approximately 70%. All drill core samples were collected under the supervision of Brunswick Exploration Inc. employees and services contractor Explo-Logik, applying industry-standard QA/QC procedures to its drilling and prospecting programs. All sample preparation and analytical work was performed by Agat Laboratories. Samples were prepared with methods 200075 and 200087 and dissolved in a sodium peroxide solution, prior to multielement analysis by ICP-OES and ICP-MS according to the Agat method 201378. All results passed the QA/QC screening at the laboratory, and all inserted standard, duplicates and blanks returned results within acceptable limits. All reported drill intersections are calculated on the basis of a lower cutoff grade of 0.30% Li2O. The scientific and technical information contained in this press release has been reviewed and approved by Mr. François Goulet, Manager Quebec. He is a Professional Geologist registered in Quebec and is a Qualified Person as defined by National Instrument 43-101. Announcement • May 11
Brunswick Exploration Inc. Announces Additional Results from 2026 Winter Drilling Campaign at Anatacau Main Project Brunswick Exploration Inc. announced additional results from the 2026 winter drilling campaign at the Anatacau Main Project, located in the Eeyou Istchee-James Bay region of Quebec where the Company continues to intersect multiple new, large and well mineralized pegmatites to the east of the main Anais pegmatite. Highlights include: 1.10% Li2O over 17.7 meters in drill hole AN-26-08 within a larger package of continuous lithium mineralization (present within both country rock and pegmatites) of 123 metres at 0.72% Li2O. Among the highest-grade and longest cesium intercepts reported in the James Bay with values up to 11.8 meters at 1.84% Cs2O. The mineralized pegmatite zone hosted within the structural corridor, which includes the Anais pegmatite, now extends over 500 meters to the East and remains open. All new pegmatites reported remain open in all directions. Table 1: Mineralized Intercepts from Drilling Program at Anatacau Main Hole ID From To Length (m) Li2O (%) Ta2O5 (ppm) Cs2O (%) AN-26-08 21.2 29.3 8.1 0.83 242 0.64 incl. 23.9 26.3 2.4 0.67 523 1.37 and 43.35 48.2 4.85 0.82 55 0.40 and 71.0 194.0 123.0 0.72 196 0.56 incl. 94.9 112.6 17.7 1.10 282 0.73 incl. 127.00 137.00 10.00 1.04 78 0.20 incl. 155.6 160.5 4.9 1.15 412 0.40 incl. 178.7 190.5 11.8 0.71 405 1.84 AN-26-09 213.8 218.1 4.4 1.16 352 0.06 and 227.3 261.0 33.7 1.17 365 0.39 incl. 227.3 233.0 5.7 1.25 334 0.57 incl. 236.0 242.0 6.0 1.38 428 0.77 incl. 247.0 251.0 4.0 1.82 427 0.37 incl. 254.0 257.0 3.0 1.95 288 0.30 AN-26-10 50.1 60.0 9.9 0.58 47 0.30 incl. 50.1 53.0 2.9 0.90 41 0.21 and 63.0 71.0 8.0 0.59 343 1.11 incl. 63.0 65.0 2.0 1.59 413 1.99 The true thickness of the Anais dyke is estimated to be approximately 70%. These three holes were designed in a fence pattern, each spaced 150 meters apart, and confirmed the continuity of the mineralized zone, which has now been extended more than 370 meters eastward from the main Anais pegmatite dike. The new dikes, sub-parallel to the Anais dike, form an extensive mineralized corridor that has now been drill-traced over 500 meters. The stacked dike structural control is very similar to that of the Galaxy Rio Tinto deposit. All intersected dikes remain open in all directions and interpreted to dip at 85° to the west. Hole AN-26-08 intersected dozens of mineralized pegmatites including a large package of continuous lithium mineralization of 123 meters at 0.72% Li2O. This lithium mineralization is observed in both the pegmatites and the country rock (meta-volcanic rocks). High lithium values observed in country rock are usually associated with abundant holmquistite (e.g. from 127 to 137 meters at 1.04% Li2O). Pegmatite intervals in this large package contain up to 1.15% Li2O over 4.85 meters and 1.1% Li2O over 17.7 meters. Hole AN-26-09 intersected multiple sub-parallel dykes including a wide pegmatite interval of 33.7 meters at 1.17% Li2O. Within this interval (from 227.3 to 261 meters) Li2O values were observed up to 1.82% and 1.95% Li2O, over 4 and 3 meters respectively. Hole AN-26-10 intersected two lithium bearing pegmatites near surface including 2.9 meters at 0.9% Li2O and 2 meters at 1.59% Li2O. Assays for pegmatite intervals intersected deeper in this hole are pending. The most recent drill holes also intersected multiple intervals of high tantalum and cesium values up to 1.84% Cs2O over 11.8 meters in Hole AN-26-08 including one assay that returned 4.6% Cs2O. Pollucite was visually identified in drill core in multiple pegmatites and correlates with the high cesium values. The mineralized dykes discovered at Anatacau to date straddle the southern side of an interpreted major deformation zone, striking northwest-southeast; a structural control that is reminiscent of the Galaxy deposit. This finding is significant as it confirms that mineralization is constrained to the same structural corridor that is found at Rio Tinto’s Galaxy project (54.3Mt M&I at 1.30% Li2O and 55.9Mt Inferred at 1.29% Li2O, see Note) and BRW’s Anatacau West project which is immediately contiguous to Rio Tinto’s claim package, located approximately 20 kilometers to the west of Anais. To date, the company has disclosed results from 4 of the 7 drill holes completed during the 2026 winter campaign, totaling 1,109 meters. The final three drill holes have identified additional pegmatites in the area. Results from these holes are pending and will be announced by BRW as soon as they become available. Table 2: Drill Hole Collars (UTM Nad83, Zone 18N) Drill Holes Azimuth Dip Length (m) UTM X UTM Y Elevation (m) AN-26-08 110 -48 252 380461 5784570 206 AN-26-09 110 -48 282 380621 5784515 209 AN-26-10 80 -48 245 380754 5784470 209 All drill core samples were collected under the supervision of BRW employees and services contractor Explo-Logik, applying industry-standard QA/QC procedures to its drilling and prospecting programs. All sample preparation and analytical work was performed by Agat Laboratories. Samples were prepared with methods 200075 and 200087 and dissolved in a sodium peroxide solution, prior to multielement analysis by ICP-OES and ICP-MS according to the Agat method 201378. All results passed the QA/QC screening at the laboratory, and all inserted standard, duplicates and blanks returned results within acceptable limits. All reported drill intersections are calculated on the basis of a lower cutoff grade of 0.30% Li2O. The scientific and technical information contained in this press release has been reviewed and approved by Mr. François Goulet, Manager Quebec. He is a Professional Geologist registered in Quebec and is a Qualified Person as defined by National Instrument 43-101. 
