Mr. Killian Charles reports

BRUNSWICK EXPLORATION INTERCEPTS 26.5 METRES GRADING 1.51% LI2O IN INITIAL DRILL RESULTS FROM ANATACAU WEST

Brunswick Exploration Inc. has received a first set of results from its recently completed drilling campaign at the Anatacau West project, located in the Eeyou Istchee-James Bay region of Quebec. The initial results presented today are from 12 holes with another six pending. Final assays for the remaining holes are expected in the coming weeks.

Drill result highlights

• 26.5 metres at 1.51 per cent lithium oxide in drill hole AW-23-01;
• 9.9 metres at 1.03 per cent Li2O in drill hole AW-23-10;
• 10.1 metres at 1.06 per cent Li2O, including 4.9 m at 1.63 per cent Li2O and 12.6 metres at 1.12 per cent Li2O in drill hole AW-23-14.

Killian Charles, president and chief executive officer of Brunswick, commented: "With the start of our pan-Canadian grassroot lithium exploration campaign, one of the largest lithium exploration initiatives in North America, we are excited to receive assays confirming the presence of high-grade, near-surface and thick lithium-bearing pegmatites from our inaugural drilling campaign at Anatacau West. Our drilling tested the pegmatites to a shallow depth and their remains substantial opportunities for more growth. With minimal regional prospecting for lithium, we look forward to continue expanding the lithium potential both at the Anatacau West and the Anatacau Main project over the coming weeks and months."

Anatacau West drilling campaign overview

Following drilling completed to date, Brunswick believes it has intercepted at least two continuous, distinct spodumene-bearing pegmatites. All of the pegmatites are oriented north-northeast, are closely spaced in an on-echelon pattern and dip steeply toward the west. The pegmatites are hosted in metasedimentary rocks in an east-west deformation corridor similar to Allkem's neighbouring James Bay lithium deposit.

Drilling has initially focused on near-surface mineralization with the pegmatites only being drill tested to a maximum vertical depth of 137 metres. They remain open at depth. Furthermore, potential exists for repetition of new pegmatites farther to the south and to the east.

Lithium mineralization consists predominantly of spodumene with minor lepidolite. Spodumene crystals are generally well formed, decimetric in scale (up to 10 centimetres) and have a white to pale grey colour. Importantly, grade is strongly correlated with visually identified spodumene percentage in core allowing Brunswick to rapidly ascertain the lithium potential of mineralized intercepts in exploration drilling.

Next steps

Starting next week, the company's exploration campaign in Quebec will begin with regional, helicopter-supported prospecting at the Anatacau West and Anatacau Main projects from the nearby Wabamisk camp. Already, Brunswick has identified more spodumene-bearing pegmatites at Anatacau Main, located 22 kilometres east from Anatacau West. These pegmatites have been minimally prospected and will be a priority target. Brunswick expects to conduct follow-up on stripping and/or drilling on several targets across both projects once it has completed an initial wave of prospecting.

Concurrent to work at Anatacau West and Anatacau Main, Brunswick will also be operating a camp at the PLEX project to the north and a smaller fly-camp at the Mirage project located farther east from PLEX. The company's portfolio in the entire Eeyou Istchee-James Bay region includes over 250 untested S-type pegmatites measuring a minimum strike length of 500 metres (for more information on Brunswick's regional prospecting plan for the Eeyou Istchee-James Bay region, see the news release dated May 11, 2023).

       MINERALIZED INTERCEPTS FROM THE WINTER 2023
            ANATACAU WEST DRILLING CAMPAIGN

                From         To   Interval       Li2O      
Hole ID           (m)        (m)        (m)        (%)      

AW-23-01         8.6       12.8        4.2       0.21      
                30.6       57.1       26.5       1.51      
AW-23-02        29.6       37.2        7.6       0.69      
AW-23-03               No significant interval
AW-23-04        31.2         34        2.8       Assays pending
AW-23-05        59.7       64.3        4.6       Assays pending
                93.3      100.9        7.6       Assays pending
               178.9      197.1       18.2       Assays pending
AW-23-06       154.5      164.9       10.4       0.57      
Incl.          156.5      157.5        1.0       1.29      
and            161.5      164.1        2.6       1.55      
AW-23-07               No significant interval
AW-23-08        31.1       32.1        1.0       0.52      
AW-23-09               No significant interval                                    
AW-23-10        44.7         47        2.3       1.09      
                54.2       57.1        2.9       0.45      
                  63       72.9        9.9       1.03      
Incl.             66         70        4.0       1.30      
AW-23-11       170.2      172.5        2.3       0.13      
AW-23-12         No significant interval -- assays pending
AW-23-13         No significant interval -- assays pending
AW-23-14        16.9       17.9        1.0       1.04      
               117.2      127.3       10.1       1.06      
Incl.          121.1        126        4.9       1.63      
               161.6      174.2       12.6       1.12      
AW-23-15               No significant interval
AW-23-16        43.7       47.2        3.5       1.07      
Incl.           43.7       45.7        2.0       1.34      
                 148        150        2.0       0.63      
Incl.            149      149.4        0.4       1.19      
AW-23-17          26         31        5.0       Assays pending
                35.7       68.1       32.9       Assays pending
               216.6      221.6        5.0       Assays pending
                 224      226.5        2.6       Assays pending
AW-23-18           9       28.4       19.6       Assays pending
               163.3      166.8        3.5       Assays pending

Note: All drill holes are NQ core size and all intervals are core 
      length. True width of intervals is not confirmed but 
      estimated to be approximately 70 per cent of true width. 
      Significant intervals are assay values above 0.1 per cent Li2O.

Quality assurance/quality control

Brunswick adheres to a strict QA/QC program for core handling, sampling, sample transportation and analyses. Drill core samples from the company's projects are securely transported to a core facility on site, where they are logged and sampled over 0.5- to 1.0-metre intervals. Samples selected for assay include insertion of quartz blanks and certified reference materials into sample batches at a rate of approximately 10 per cent. Samples are shipped to ALS Canada Ltd.'s preparation facility in Val d'Or. Pulps are analyzed at the ALS Canada Ltd. facility in Vancouver. All samples are analyzed by sodium peroxide fusion with inductively coupled plasma atomic emission spectroscopy/mass spectrometry finish. Reported drill intersections use a lower analytical cut off value of 0.1 per cent Li2O.

Qualified person

The scientific and technical information contained in this press release in regard to Quebec has been reviewed and approved by Francois Goulet, manager, Quebec. He is a professional geologist registered in Quebec.

About Brunswick Exploration Inc.

Brunswick Exploration is a Montreal-based mineral exploration company listed on the TSX Venture Exchange 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 with holdings in Quebec, Ontario, Saskatchewan, Manitoba, New Brunswick and Nova Scotia.

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