GRL.V · 2025-09-22 12:00:00

GreenLight Metals Intersects Significant Copper-Rich VMS Mineralization at Bend Project in Wisconsin Including 12.85m of 4.15% Copper Equivalent Assays on Holes 1-3 Confirm High-Grade Copper with Significant Gold and Tellurium; Visual

Drill Results

GreenLight Metals Intersects Significant

Copper-Rich VMS Mineralization at Bend

Project in Wisconsin Including 12.85m of

4.15% Copper Equivalent

Assays on Holes 1-3 Confirm High-Grade Copper with Significant Gold and Tellurium; Visual

Observations Suggest Continued Success in Remaining Holes

Medford, Wisconsin--(Newsfile Corp. - September 22, 2025) - GreenLight Metals Inc. (TSXV: GRL)

GreenLight

" or the "

Company

") is pleased to announce the completion of its Phase 1 drilling

program at the Bend copper-gold VMS Project in Wisconsin and report initial assay results from the first

three holes. The six-hole diamond drilling program, totaling 2,037 meters, was completed from three

sites along two sections entirely on the Company's leased forty-acre tract of private minerals. Visual

logging has been completed for all six holes, with assay results now received for holes B25-001 through

B25-003. Results for holes B25-004 through B25-006, which encountered significant visual sulfide

mineralization, are expected in the coming weeks.

Highlights

Phase 1 Program Complete

: Six-hole drilling program successfully completed on schedule,

targeting eastern extensions of the known Bend deposit. Drilling confirms mineralization extends

eastward along a ~36-42° plunge and remains open at depth and along trend.

Initial Assays Confirm High-Grade Mineralization

: First three holes return significant copper-

gold intercepts including:

B25-003: 12.85m (11.3m true thickness) @ 1.81% Cu, 1.75g/t Au, 22.7g/t Ag, 346.9g/t

Te from 257.00m

Including 3.56m (3.13m true thickness) of @ 2.68% Cu, 2.77g/t Au, 21.17g/t Ag,

481.54g/t Te from 257.00m

Significant Visual Sulfide Intercepts

(assays pending):

B25-004: 22.24m (17.8m true thickness) of massive to semi-massive sulfide from 276.29m

(visual observation; assays pending), one of the thickest sulfide intervals logged to date at

Bend

B25-005: 8.79m (7.21m true thickness) of semi-massive to massive sulfide from 285.83m

B25-006: 17.11m (11.98m true thickness)

of semi-massive to massive sulfide from 328.52m

Tellurium Included in Analytical Suite

: The current analytical program includes tellurium; results

for 6 samples within the B25-003 intercept exceeding the 500g/t detection limit are currently

pending. As a designated critical mineral essential for renewable energy and defense

applications, tellurium could add significant value to the project.

Strategic Advantage

: Program executed entirely on private mineral lands with existing permits,

demonstrating GreenLight's ability to advance exploration efficiently while federal permit

applications remain pending.

Matt Filgate, President & CEO, commented: "These results mark a new beginning for the Bend Project.

Not only is this the first drill program on the project since 2012 and the first in this area since 1994, but,

based on visual logging, the 22.24-meter interval in hole B25-004 represents one of the thickest massive

to semi-massive sulfide intercepts recorded on the property. Together with the long sulfide intervals

logged in holes B25-005 and B25-006 (assays pending), these results support our interpretation that

mineralization strengthens down plunge and remains open to the east. These early outcomes

underscore the growth potential of the Bend volcanogenic massive sulfide system and position

GreenLight to advance the project aggressively and systematically as the copper market strengthens."

Phase 1 Drilling Results and Geological Context

The Phase 1 program successfully tested the eastern margin of the known Bend deposit along two

sections. All drilling was conducted on the Company's leased Soo Line Railroad forty-acre mineral tract.

As previously disclosed, Phase 1 contemplated up to eight holes; six holes were completed in this initial

phase, with the program utilizing the allocated meterage to pursue thicker mineralization encountered at

depth.

The first two holes of the program intersected the upper margins of the Bend massive to semi-massive

sulfide horizon and demonstrated a thickening of the mineralized section with depth. The program plan

was then adapted to focus on testing the down-plunge continuity of thicker chalcopyrite-rich sulfide

mineralization.

Stratigraphy across the drill area is consistent, with a sequence of rhyolite to dacite flows overlying

interlayered fine ash to lapilli tuffs. Immediately overlying the semi-massive to massive sulfide horizon

are laminated exhalative cherty tuffs and argillites ("hanging wall sediments"). The mineralized massive

to semi-massive sulfide horizon is underlain by a thick Chlorite-sericite altered quartz-crystal ("quartz-

eye") tuff with strong disseminated and bedding-parallel pyrite (locally up to ~20%).

The mineralized

section of the deposit is underlain by a fine-grained chlorite-sericite tuff that marks the footwall contact of

the deposit.

The recently completed drilling indicates a thickening of both the massive to semi-massive sulfide

horizon and underlying mineralized crystal tuff unit with depth.

Table 1: Summary of Significant Intercepts - Holes B25-001 to B25-003

DDH

From

(m)

Interval

(m)

True

Thickness

(m)

(%)

(g/t)

Cu Eq

(%)

B25-001

218.85

219.41

0.56

0.50

0.49

0.54

18.85

163.50

1.37

B25-002

229.95

240.8

10.85

9.60

0.32

0.54

3.95

59.21

1.00

Including

229.95

231.27

1.32

1.17

1.20

0.39

5.84

102.94

1.73

and

239.9

240.8

0.90

0.8

1.52

1.60

21.90

323.00

3.67

B25-003

257

269.85

12.85

11.3

1.81

1.75

22.70

346.90

4.15

Including

257

260.56

3.56

3.13

2.68

2.77

21.17

481.54

6.19

and

266.12

269.85

3.73

3.28

2.08

1.62

33.68

373.83

4.40

Copper Equivalents (Cu EQ) are calculated as an 'in-situ' value of the interval expressed in terms of combining the value of

Cu, Au, and Ag

selected metal prices divided by the copper price and expressed as a percent copper.

The calculations do not take into account factors such as

metallurgical recoveries or payable metals and are shown for demonstrative purposes only.

Tellurium (Te) is reported separately and is not

included in the CuEq calculation.

The composite grades of select intervals in the table above are calculated on a length-weighted basis.

Te overlimit analyses for samples >500 g/t Te

are currently pending for 6 samples representing 5.29 meters of the 12.85m intercept in B25-003. The grade for this intercept was calculated using

500 g/t Te for these samples.

Cu Eq (%) = ((Cu grade (%) * 2204.6 * $4.50) + (Au grade (g/t) / 31.1035 * $3,600) + (Ag grade (g/t) / 31.1035 * $40)) / (2204.6 * 0.01 * $4.50)

Table 2: Visual Sulfide Observations - Holes B25-004 to B25-006 (Assays Pending)

DDH

From

(m)

Interval

(m)

True

Thickness

(m)

Geologic

Description

Est. Sulfide

Content

B25-004

276.29

298.53

22.24

17.80

Massive to semi-massive pyrite-

chalcopyrite

~75% Pyrite

~8% Chalcopyrite

298.53

312.1

13.57

10.86

Sulfide-rich quartz crystal tuff

~15% Pyrite

~0.5% Chalcopyrite

B25-005

285.83

294.62

8.79

7.21

Massive to semi-massive pyrite-

chalcopyrite

~65% Pyrite

~6% Chalcopyrite

294.62

311.22

16.60

13.62

Sulfide-rich quartz crystal tuff

~12% Pyrite

~0.5% Chalcopyrite

B25-006

328.52

345.63

17.11

11.98

Massive to semi-massive pyrite-

chalcopyrite

~55% Pyrite

~6% Chalcopyrite

345.63

351.05

5.42

3.79

Sulfide-rich quartz crystal tuff

~15% Pyrite

~0.5% Chalcopyrite

Figure 1: 2025 Drill Program Plan Map

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7506/267312_d04c1ccff4b0dbe4_002full.jpg

Cautionary Note Regarding Visual Results and Photographs

Any references to "massive," "semi-massive," or "sulfide" intervals are based on visual estimates from

core logging. Visual estimates and observations of sulfide minerals (e.g., pyrite, chalcopyrite) are not a

proxy for grade and should not be used for resource estimation or economic evaluation. Sulfide

mineralization percentages are estimates only. Photographs included in this release are of selected

intervals and are not necessarily representative of mineralization throughout a hole. Assays are pending

for select intervals and will be reported once received and validated.

Hole Details

B25-001:

Designed to test the eastern extension of previously intersected semi-massive to

massive pyrite-chalcopyrite mineralization, the mineralized horizon was intersected at 218.85m

with a 0.56m pyrite-chalcopyrite semi-massive sulfide zone. This intercept was interpreted as the

'up-dip' margins of the sulfide horizon at depth.

B25-002:

Designed to undercut B25-001 by 30m vertically from the same drill site, the mineralized

horizon was intersected at 229.95m consisting of two stacked semi to massive sulfide lenses

separated by well mineralized quartz-eye crystal tuff demonstrating a thickening of the mineralized

section with depth. The upper lens was 1.32m thick while the lower lens was 0.90m and more

massive in sulfide texture.

B25-003:

Set back 38m south and 30m west of the B25-001/002 section and designed to

intercept the mineralized horizon 30m below historic hole B-7 (2.68m @ 1.95% Cu, 1.64g/t Au),

B25-003 intersected 12.85m of semi-massive to massive pyrite-chalcopyrite sulfide from 257.00m

to 269.85m. B25-003 also cored 3.6m of strongly pyrite mineralized quartz-eye crystal tuff

immediately below the massive sulfide horizon. The results proved the working hypothesis that this

drill campaign was vectoring towards a thickening of the massive sulfide lens down-plunge.

B25-004:

Collared on the same site as B25-003 and designed to test down-plunge continuity 42m

below B25-003 vertically, the mineralized horizon was intersected at 276.29m yielding 22.24m of

semi-massive to massive pyrite-chalcopyrite sulfide hosting 75% pyrite and average 8%

chalcopyrite throughout, locally up to 15%. B25-004 also intersected 13.57m of >15% pyrite in the

footwall quartz-eye crystal tuff from 298.53m to 312.10m.

B25-005:

Collared as a 47m step back south on the same section as B25-001/002 to test down-

plunge extent at 60m vertical depth below B25-002, the mineralized horizon was intersected at

285.83m with 8.79m of semi-massive to massive pyrite-chalcopyrite. This hole supported the

hypothesis of a 36° to 42° plunge to the east. B25-005 also intersected 16.6m of strong pyrite

mineralized footwall chloritized quartz-eye crystal tuff known for hosting gold mineralization from

294.62m to 311.22m.

B25-006:

Collared from the same site as B25-005 to test 60m down dip vertically, the mineralized

horizon was intersected at 328.52m coring 17.11m of semi-massive to massive sulfides hosting

55% pyrite and 6% chalcopyrite overall. Similar to overlying holes, a 5.42m thick pyritic-rich

footwall zone within the quartz-eye crystal tuff (>15% pyrite) was intersected from 345.63m to

351.05m.

Next Steps

Pending Assays: Results for visual sulfide intercepts in holes B25-004 through B25-006 expected

within 3-4 weeks

Phase 2: Planning is currently underway for an expanded, winter drill program to follow up on the

recent drilling success at the Bend project.

Permitting efforts on both the federal properties

(Prospecting Permit) as well as within the privately owned Soo Line Mineral Parcel are in progress

to initiate a 5,000 - 6,000 meter drill program to further expand the deposit.

Table 3: Drill Collar Information

Hole ID

Easting

(m)

Northing

(m)

Elevation

(masl)

Azimuth

Dip

Total Depth

(m)

B25-001

688514.058

5018602.251

412.855

344.0

48.0

279.81

B25-002

688512.840

5018601.978

413.468

342.0

58.0

307.24

B25-003

688490.294

5018569.989

412.868

344.0

55.5

276.61

B25-004

688491.065

5018570.208

412.871

344.7

65.0

368.20

B25-005

688533.987

5018560.256

415.502

345.0

59.0

376.43

B25-006

688534.039

5018560.161

416.008

344.0

67.0

428.85

*Coordinates in NAD83 UTM Zone 15N

Figure 2: Long Section with DDH pierce points on plane of mineralization

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7506/267312_d04c1ccff4b0dbe4_003full.jpg

Figure 3: Cross Section B-B’

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7506/267312_d04c1ccff4b0dbe4_005full.jpg

Figure 4: Cross Section A-A’

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7506/267312_d04c1ccff4b0dbe4_007full.jpg

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