BRUNSWICK EXPLORATION DRILLS 17.7 METERS AT 1.10% LI2O WITHIN 123 METERS AT 0.72% LI2O

Brunswick Exploration has delivered breakthrough drilling results from its 2026 winter campaign at the Anatacau Main Project in Quebec's Eeyou Istchee-James Bay region, establishing what appears to be a major lithium-cesium system. The standout result came from hole AN-26-08, which intersected 17.7 meters at 1.10% Li2O within a much larger package of 123 meters at 0.72% Li2O, representing continuous lithium mineralization in both pegmatites and host country rock.

The company has successfully extended the mineralized pegmatite zone over 500 meters to the east of the main Anais pegmatite, with all new pegmatites remaining open in all directions. Particularly significant are the cesium intercepts, with values up to 11.8 meters at 1.84% Cs2O and individual assays reaching 4.6% Cs2O - among the highest-grade and longest cesium intervals reported in the James Bay region. Visual identification of pollucite in drill core correlates with these high cesium values, indicating potential for additional payable minerals.

The structural geology of the deposit mirrors that of Rio Tinto's nearby Galaxy deposit, with mineralized dykes controlled by a major northwest-southeast trending deformation zone. This structural similarity to Galaxy (54.3Mt M&I at 1.30% Li2O) provides strong geological validation for the system's potential scale. The discovery of extensive lithium mineralization in host rocks surrounding the pegmatites indicates a well-formed hydrothermal system with significant exploration upside.

With only four of seven drill holes from the winter campaign reported and results from three additional holes pending, Brunswick appears to be defining a major lithium-cesium system that could significantly impact the company's resource base. The combination of high-grade lithium and cesium mineralization across an expanding footprint positions Anatacau Main as a potentially world-class deposit in one of Canada's premier lithium districts.