Brunswick Exploration Announces Inferred Mineral Resource of 52.2Mt at 1.08% Li2O at Mirage with Additional Exploration Target
Brunswick Hits 52Mt Maiden Resource at Mirage, Exceeding Tonnage Goals but Facing High Dilution and Royalties
On January 8, 2026, Brunswick Exploration (BRW) announced a maiden pit-constrained Inferred Mineral Resource Estimate (MRE) for its Mirage Lithium Project in Quebec. The resource stands at 52.2 million tonnes (Mt) grading 1.08% Li2O and 131 ppm Ta2O5. Over 70% of the resource is contained within five major dykes above 150 meters depth. Additionally, the company established an Exploration Target of 40 to 50 Mt at grades between 0.8% and 1.1% Li2O, suggesting potential to reach 100 Mt. Preliminary metallurgical work suggests the project is amenable to Dense Media Separation (DMS) processing, which could significantly lower capital and operating costs.
The impact is Materially Positive. This resource estimate places Mirage among the largest undeveloped hard-rock lithium deposits in the Americas. - Resource Scale: The 52.2 Mt figure exceeds management's previous public objective of 50 Mt. The grade (1.08%) is respectable for an open-pit operation. - Processing Potential: The DMS-only potential (preliminary recoveries of 68.4% to 76%) is a major economic driver, as it eliminates the need for a costly flotation circuit. - Timeline Execution: Management met its target of an early 2026 release, which was reiterated in multiple filings throughout late 2025. - Jurisdiction Advantage: Located in the Eeyou Istchee-James Bay region, a top-tier global lithium district with established infrastructure. - Note on Classification: The entire resource is currently "Inferred," the lowest confidence category. Significant further drilling is required to upgrade this to "Indicated" to support a Pre-Feasibility Study.
Brunswick Exploration is focused on grassroots lithium exploration in Quebec, Greenland, and now Saudi Arabia. - Flagship: The Mirage Project (Quebec), now 100% owned, consisting of 427 claims. - Secondary Asset: Anatacau Project, which borders Rio Tinto's Galaxy deposit and has shown high-grade drill results (47.2m @ 1.66% Li2O). - Third Asset: A major land position in Greenland, being the first mover in the jurisdiction for lithium.