Drill Results Routine +

Brunswick Exploration Drills 17.7 Meters at 1.10% Li2O Within 123 Meters at 0.72% Li2O

Brunswick’s Anatacau Drill Blitz Delivers Long Lithium Intercepts and a Cesium Bonus, Cementing a Second Quebec Anchor

By The Northwire Desk — AI Analysis May 11, 2026 · 05:00 BRW · 0.205 Brunswick Exploration Inc.

Executive Summary

New drill results from Anatacau Main Project (Quebec) released on May 11, 2026, covering three additional holes (AN‑26‑08, ‑09, ‑10) from the 2026 winter campaign.
Hole AN‑26‑08 intersected a 123 m continuous lithium‑mineralized package grading 0.72 % Li₂O, including 17.7 m at 1.10 % Li₂O and 4.85 m at 0.82 % Li₂O. It also returned high‑grade cesium (11.8 m at 1.84 % Cs₂O) and elevated tantalum.
Hole AN‑26‑09 delivered 33.7 m at 1.17 % Li₂O with sub‑intervals up to 1.95 % Li₂O.
Hole AN‑26‑10 hit near‑surface lithium pegmatites, including 2.9 m at 0.9 % Li₂O and 2 m at 1.59 % Li₂O.
The mineralized corridor has now been drill‑traced more than 500 m east of the Anais discovery, with all pegmatites open in all directions and structurally analogous to the Rio Tinto Galaxy deposit.
Metallurgical testwork will be launched to evaluate cesium recovery, and assays for the final three holes of the campaign are pending.

Material Impact

The drilling continues to confirm the scale and continuity of the Anatacau system, but the grades in the new holes (particularly the broad 0.72 % Li₂O intercept) are lower than the standout 1.31 % Li₂O over 90.5 m and 1.02 % Li₂O over 167.9 m reported just a few weeks earlier (April 15, 2026).
The presence of potentially payable cesium is a new development but remains untested economically; no resource estimate or recovery rates exist yet.
Management’s statement that they are “defining a major system” is consistent with previous releases and does not materially alter the investment thesis.
The market has already priced in Anatacau’s exploration success following the April results, and this update adds incremental, expected data points.
Impact: Routine – Positive (broadens the known mineralization, introduces cesium as a by‑product opportunity, but lacks immediate resource or economic metrics to be a material change).

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Company Overview

Brunswick Exploration is a hard‑rock lithium exploration company focused on under‑explored regions in Quebec (Mirage, Anatacau), Greenland (Nuuk, Paamiut, Clavering‑Hudson Land), and Saudi Arabia.
Flagship Project – Mirage (Quebec): Hosts a maiden open‑pit inferred resource of 52.2 Mt at 1.08 % Li₂O (563 kt contained Li₂O) plus an Exploration Target of 40–50 Mt at 0.80–1.10 % Li₂O. The resource is near‑surface, DMS‑only metallurgy tested, and remains open in multiple directions.
Anatacau Main (Quebec): A rapidly expanding spodumene discovery 22 km east of Rio Tinto’s Galaxy project. Multiple wide, high‑grade intercepts (e.g., 120.7 m at 1.31 % Li₂O) have been drilled in a structurally controlled corridor now traced over 500 m. No resource yet.
Greenland Projects: Nuuk (Ivisaartoq) – major spodumene pegmatite trend (~2 km); Paamiut – confirmed spodumene showings; new East Greenland licence (Clavering‑Hudson Land) with exceptional rubidium‑cesium stream‑sediment anomalies.
Saudi Arabia: First‑ever hard‑rock lithium licence awarded (8,467 ha), geologically prospective for LCT pegmatites; reconnaissance planned H1 2026.

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