Brunswick Exploration Once More Outlines a New, Major Dyke at Mirage
Brunswick Exploration Once More Outlines a New, Major Dyke at Mirage
MONTREAL, June 10, 2025 -- Brunswick Exploration Inc. (TSX-V: BRW, OTCQB: BRWXF; “BRW” or the “Company”) is
pleased to report a further six drill results from the Winter 2025 program at its Mirage Project. The Mirage Project is located in
the Eeyou Istchee-James Bay region of Quebec, approximately 40 kilometres south of the Trans-Taïga Road. This press
release focuses primarily on drilling completed north and east of the MR-6 dyke and, in the neighboring, “Stacked Dyke” area,
where BRW continues to intersect dozens of well-mineralized spodumene-bearing pegmatites.
Highlights include:
• A newly discovered dyke located approximately 250 metres northeast of MR-6, which returned 29.25 metres at 1.19%
Li₂O in hole MR-25-115 and it remains open in all directions.
• The “Stacked Dyke” area has been extended 150 m to the northeast, with hole MR-25-106 intercepting 1.01% Li ₂O
over 17.4 metres. The area continues to show significant potential and widespread mineralization over the entire length
of the drill holes.
Mr. Killian Charles, President and CEO of BRW, commented: “Every drill campaign has underscored the potential of the
Mirage project. As we begin to step out from the core area of interest, we continue to intersect new, significant, well-
mineralized pegmatites, all located near surface and this release is no different. We have again extended both the footprint of
the Stacked Dyke area and found new sub-parallel mineralization adjacent to MR-6. We believe the forthcoming resource
estimate, expected in late 2025, will position Mirage as one of the most important lithium projects in the province of Quebec.
Looking further ahead, we expect to have news related to our Greenlandic summer program shortly and look forward to the
start of drilling at our Anatacau project in late Q3.”
Mirage Project Drilling Overview
The Mirage Project comprises 427 claims located roughly 40 kilometers south of the Trans-Taiga Highway in Quebec’s James
Bay region and 34 kilometers northeast of Winsome Resources’ Adina Project.
The drilling campaign focused on extending the mineralized Stacked Dyke area to the northeast. Highlights discussed in this
release are shown in Table 1 and Figure 1. Collars are shown in Table 2.
Figure 1: Central Zone of the Mirage Project
Drill hole MR-25-115 led to the discovery of a new spodumene-bearing pegmatite dyke, grading 1.19% Li ₂O over 29.25 metres
from 92.6 metres to 121.85 metres. This new dyke is interpreted as being subparallel to the MR-6 dyke, with an orientation of
N140/30, and it highlights the potential for pegmatites to occur in close proximity to each other. The new dyke remains open in
all directions.
Figure 2: Section A-A’
Drill holes MR-25-105, MR-25-106, and MR-25-108 extended the “Stacked Dyke” zone by 150 metres to the northeast, with a
total of 32 mineralized dykes intersected across all three holes. The most significant pegmatite in these new holes returned a
grade of 1.01% Li ₂O over 17.4 metres, from a downhole depth of 45.5 metres to 62.9 metres. Oriented drilling in this area
confirms an average dyke orientation of N70/70 similar to those identified in the South Zone, unlike the two main dykes of the
Central Zone, MR-3 and MR-6.
Drill hole MR-25-104, located approximately 1 km northeast of MR-6, targeted a highly prospective geological setting
analogous to MR-4 and returned anomalous lithium values up to 502 ppm Li in sedimentary units and 902 ppm Li in basalts,
over a drill hole length of 222 metres. A small dyke, measuring approximately 2-metres wide, with spodumene pseudomorphs
was intercepted; however, the length and strength of the lithium anomaly observed in the host rocks are considerably higher
than the dyke. This new drill hole potentially extends the lithium footprint of the Orion Lake sector, where most of the drilling
has occurred to date, to a length of over 3km. At this time, the lithium anomaly remains unexplained and will be the focus of a
future drill campaign.
Table 1 : 2025 Drilling Program Mentioned in this Release
Hole ID From (m) To (m) Length Li2O (%) Ta2O5 (ppm)
MR-25-105
36.7 38.4 1.7 1.40 287
43.1 44.3 1.2 1.52 145
77.5 90 12.5 1.44 254
154.75 156.15 1.4 2.19 253
161.6 162.6 1 1.07 206
203.25 206 2.75 0.85 239
228.8 231.25 2.45 0.93 239
236.25 238.3 2.05 1.46 221
241.95 247.65 5.7 0.73 225
251.8 253.7 1.9 0.95 176
261.15 269.4 8.25 0.85 129
273.7 282.7 9 0.98 204
287.35 288.5 1.15 1.22 239
325.1 326.25 1.15 1.25 107
MR-25-106
45.5 62.9 17.4 1.01 166
123.05 124.8 1.75 0.48 154
128.2 134.15 5.95 1.32 312
141.8 147.6 5.8 1.30 227
157.7 162.3 4.6 1.28 233
236.85 241.2 4.35 2.01 197
256.3 257.55 1.25 0.76 157
283.45 284.65 1.2 1.14 232
MR-25-107 23.8 28.8 5 1.44 202
MR-25-108
26.8 31.9 5.1 0.97 169
82.75 84.9 2.15 1.04 208
96 98.4 2.4 1.15 162
104.4 106.85 2.45 0.73 178
118.7 120.6 1.9 0.98 192
128.75 131.75 3 0.91 201
135.8 138 2.2 1.64 214
163.1 170.2 7.1 1.22 199
253 255.2 2.2 1.64 352
MR-25-111 61.8 64.05 2.25 1.09 172
MR-25-115 92.6 121.85 29.25 1.19 179
Table 2 : 2025 Drilling Collars Mentioned in this Release
Hole ID Azimut Dip Length (m)
UTM NAD83 z18
East
UTM NAD83 z18
North
MR-25-104 320 -45 222 684000 5941869
MR-25-105 335 -52 381 683523 5941310
MR-25-106 330 -45 294 683635 5941356
MR-25-107 160 85 279 682753 5941463
MR-25-108 320 45 285 683575 5941439
MR-25-111 320 -55 348 683467 5941530
MR-25-115 360 -50 399 683229 5941536
QAQC
All drill core samples were collected under the supervision of BRW employees and contractors. The drill core was transported
by helicopter and by truck from the drill platform to the core logging facility in Val-d’Or. Each core was then logged,
photographed, tagged, and split by diamond saw before being sampled. All pegmatite intervals were sampled at approximately
1-meter intervals to ensure representativity. Samples were bagged; duplicated on reject, blanks and certified reference
materials for lithium were inserted every 20 samples. Groups of samples were placed in larger bags, sealed with numbered
tags, in order to maintain a chain of custody. The sample bags were transported from the BRW contractor facility to the AGAT
laboratory in Val-d’Or. All sample preparation and analytical work was performed by AGAT by sodium peroxide fusion with ICP
-OES and ICP-MS finish. All results passed the QA/QC screening at the lab and all inserted standard and blanks returned
results that were within acceptable limits. All reported drill intersections are calculated based on a lower cutoff grade of 0.3%
Li2O, with maximum internal dilution of 5 meters. Host basalts adjacent to the dykes may grade up to 0.3% Li2O but were
excluded from the reported intersections.
Qualified Person
The scientific and technical information contained in this press release has been reviewed and approved by Mr. Simon T.
Hébert, VP Development. He is a Professional Geologist registered in Quebec and is a Qualified Person as defined by
National Instrument 43-101.
About Brunswick Exploration
Brunswick Exploration is a Montreal-based mineral exploration company listed on the TSX-V under symbol BRW. The
Company is focused on grassroots exploration for lithium in Canada, a critical metal necessary to global decarbonization and
energy transition. The company is rapidly advancing the most extensive grassroots lithium property portfolio in Canada and
Greenland.
Cautionary Statement on Forward-Looking Information
This news release contains "forward-looking information" within the meaning of applicable Canadian securities legislation
based on expectations, estimates and projections as at the date of this news release. Forward-looking information involves
risks, uncertainties and other factors that could cause actual events, results, performance, prospects and opportunities to
differ materially from those expressed or implied by such forward-looking information. Factors that could cause actual results
to differ materially from such forward-looking information include, but are not limited to, delays in obtaining or failures to obtain
required governmental, environmental or other project approvals; uncertainties relating to the availability and costs of financing
needed in the future; changes in equity markets; inflation; fluctuations in commodity prices; delays in the development of
projects; the other risks involved in the mineral exploration and development industry; and those risks set out in the
Corporation’s public documents filed on SEDAR at www.sedar.com. Although the Corporation believes that the assumptions
and factors used in preparing the forward-looking information in this news release are reasonable, undue reliance should not
be placed on such information, which only applies as of the date of this news release, and no assurance can be given that
such events will occur in the disclosed time frames or at all. The Corporation disclaims any intention or obligation to update or
revise any forward-looking information, whether as a result of new information, future events or otherwise, other than as
required by law. Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies
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Photos accompanying this announcement are available at:
https://www.globenewswire.com/NewsRoom/AttachmentNg/cb41f1b3-9200-4c6a-9819-235efed0965a
https://www.globenewswire.com/NewsRoom/AttachmentNg/7d87780b-9239-4952-949e-93c273f4b8f5
Investor Relations/information
Mr. Killian Charles, President and CEO ([email protected])