MTT.V · 2026-03-25 12:00:00

Fossil Hill Zone Trench Results Return up to 9,590 ppm Cu in Bedrock and Soil Sampling Results Show Strong Geochemical Anomalies Along the Boudreau Brook-Fossil Hill Trend at Magna Terra's Rocky Brook Project, New Brunswick

Drill Results Exploration Programs

Fossil Hill Zone Trench Results Return up to

9,590 ppm Cu in Bedrock and Soil Sampling

Results Show Strong Geochemical Anomalies

Along the Boudreau Brook-Fossil Hill Trend at

Magna Terra's Rocky Brook Project, New

Brunswick

Toronto, Ontario--(Newsfile Corp. - March 25, 2026) -

Magna Terra Minerals Inc

(TSXV: MTT)

(the

Company

" or "

Magna Terra

") is pleased to announce geochemical results of a soil sampling and

trenching program at the Boudreau Brook-Fossil Hill Trend on its Rocky Brook Project ("Rocky Brook" or

the "Project"), located in the prolific Bathurst Mining Camp ("BMC") of northern New Brunswick

(Figure

The soil sampling results show anomalous copper, zinc, gold, and silver values that are coincident with

EM anomalies along the 15-kilometre-long Boudreau Brook-Fossil Hill Trend, one of five high priority

targets identified by analysis of regional airborne geophysical and geochemical data sets (see news

release dated October 27, 2025) that is located 5.5 kilometres to the north-northwest of Canadian

Copper Inc.'s Caribou Mill Complex

(Figure 2)

. Grab* and channel sample results from a trenching

program at the Fossil Hill Zone confirmed the presence of native copper and copper sulphides (see

news release dated December 11, 2025) and returned copper values up to

9,590 ppm,

9,210 ppm,

and

9,080 ppm Cu

"The results of our initial trenching program on the Rocky Brook Project are very encouraging. The

impressive samples of visible copper mineralization in the trenches confirms the results of historic

rock grab sampling on the Project. This abbreviated trenching program testing the Fossil Hill Zone

only exposes a small section of the larger Boudreau Brook-Fossil Hill Trend where previous work has

outlined a 15-kilometre-long zone of coincident copper mineralized rock samples and anomalous soil

samples consistent with zones of conductivity and elevated gravity. The proximity of this zone to

Canadian Copper's Caribou Mill Complex adds a compelling narrative for the potential to identify and

delineate additional copper-rich massive sulphide deposits well within economic trucking distance to

the Caribou Mill Complex. In parallel with the trenching work at Fossil Hill, we continue to explore

along the larger 15-kilometre Boudreau Brook-Fossil Hill Trend, and we are very encouraged by the

results of soil sampling indicating polymetallic (Cu-Zn-Au-Ag) signatures that coincide with airborne

conductors and elevated gravity signatures. In 2026, we will look to further advance this trend and

other identified high priority targets throughout the Rocky Brook Project, including targets on our

Restigouche Property located between 5 and 10 kilometres to the southwest of Canadian Copper's

Murray Brook Deposit."

~ Lew Lawrick, President and CEO, Magna Terra Minerals Inc.

Rocky Brook Project Highlights

VMS Highlights

The Project covers a 40-kilometre extent of favourable California Lake felsic volcanic and

sedimentary rocks that are host to the nearby Restigouche, Murray Brook, and Caribou Deposits;

Identification of the Boudreau Brook-Fossil Hill Trend - a 15-kilometre trend of coincident

geochemical and geophysical anomalies and historical prospects;

Previous work at the Fossil Hill Zone has discovered high-grade copper-cobalt mineralization with

grab samples* assaying up to

16.65% Cu

and

0.64% Co

;

Previous work at the Boudreau Brook prospect has discovered copper mineralization assaying up

3% Cu

;

The property covers the Restigouche C-4 and C-5 footwall Cu-rich "feeder" zones where previous

historical drilling at the C-4 zone and in hole C-4 that intersected 4.36 m grading 0.2% Cu, 1.6%

Pb, and 6.74% Zn (from 17.3 to 21.6 m). The best intersection in the C-5 zone was reported in hole

C-5 that intersected 2.06% Cu and 0.57% Zn over 4.5 m (from 51.9 to 56.4 m);

Located in the prolific Bathurst Mining Camp within the premier mining jurisdiction of New

Brunswick; and

Year-round accessibility with road access to the majority of the property.

Gold Highlights

The Project also covers a 30-kilometre extent of the Rocky Brook-Millstream Fault system;

Strategically positioned along strike from Kinross-Puma's Lynx Zone gold discovery and adjacent

to the past-producing Caribou Mine and Murray Brook base metal deposits; and

Recent discovery in 2023 of high-grade gold assays from grab samples* assaying up to

5.23 g/t

Au over a 350 metre

strike length at Fournier Lake.

Soil Sampling Program

A total of 2,515 soil samples, including 86 duplicates, were collected over three grids designed to cover

key areas of the Boudreau Brook-Fossil Hill Trend including the Boudreau Brook and Fossil Hill mineral

occurrences. The grids covered 7.2 kilometres of the 15-kilometre trend with each grid at 200 metre line-

spacing and 25 metre sample-spacing

(Figure 3)

. The results highlight key areas with multi-element

anomalies (Cu, Zn, Ag, and Au) that are spatially coincident with EM conductors and prospective

stratigraphy (ie. mafic volcanic and sedimentary units of the Sormany Group). The Company plans to

complete gaps in the survey as part of its comprehensive exploration plans commencing in the spring.

Of the 2,515 samples collected over the Boudreau Brook-Fossil Hill Trend,

Copper values range between <1 and 371 ppm Cu with the 95th percentile (n=126) assaying over

61.3 ppm;

Zinc values range between 3 and 3,940 ppm Zn with the 95th percentile (n=121) assaying over

135 ppm;

Gold values range between <0.005 and 1.02 ppm Au with the 95th percentile (n=126) assaying

over 0.012 ppm; and

Silver values range between <0.2 and 2.7 ppm Ag with the 95

percentile (n=108) assaying over

0.3 ppm

(Figure 3)

Trenching Program

A total of three trenches (T4, T7, and T8) were excavated, totaling 245 metres in length and exposing

192 metres of bedrock, at the Fossil Hill Zone targeting areas of historical grab samples* including

16.65% and 13.84% copper and 0.64% cobalt (

Figure 4

). The trenches exposed massive mafic

volcanic and mafic volcanic breccia rocks, locally siliceous, of the Armstrong Formation, Sormany

Group. A total of 93 samples were taken including 68 grab samples* of bedrock taken at 1 to 3 metre

intervals, 11 grab samples of float, and 14 channel samples ranging from 0.1 to 1.0 metres in length

(Figure 4)

. Copper assay results range between 5 to

9,590 ppm, with three outcrop samples above

9,000 ppm Cu

Table 1

summarizes select significant sample results above 100 ppm Cu. Stripped

sections of these trenches remain exposed for further mapping and sampling in the spring.

Trench T4

was 73.5 metres long and between 2 and 4.5 metres wide. A total of 26 grab samples of

bedrock were collected of massive mafic volcanics and mafic volcanic breccias. Five of the grab

samples contained malachite infilling fractures hosted in both the massive mafic volcanics and volcanic

breccias

(Figure 8A)

. Copper assay results range between 5 to

9,590 ppm

with mineralization >100

ppm Cu over a length of 3.7 metres (true thickness unknown) (

Figure 5

Trench T7

was 81 metres long and between 2 and 3.5 metres wide. A total of 23 rock samples (1

outcrop, 14 channel, 8 float) were collected of massive mafic volcanics and mafic volcanic breccias. Two

channel and one float sample(s) of massive mafic volcanics hosted malachite along fractures. Copper

assay results range between 2 to 1,600 ppm

(Figure 6)

Trench T8

was 90.5 metres long and between 4.5 and 7 metres wide. A total of 44 rock samples (41

outcrop, 3 float) were collected of massive mafic volcanics and mafic volcanic breccia. The eastern half

of the trench consisted of 49 metres of intense silicification of the mafic units. Copper mineralization

consisting of calcite+/-quartz vein-hosted chalcopyrite+malachite+/-azurite in five grab samples of

bedrock

(Figure 8B)

, one locality of vein-hosted native copper (1 outcrop, 1 float)

(Figure 8C)

, and

fractures coated by malachite was observed in 11 samples (9 outcrop, 2 float). Copper assay results

range from 3 to

9,210 ppm

with mineralization >100 ppm Cu over 25 metres (true thickness unknown)

(Figure 7)

Table 1:

List of rock grab, float and channel samples with copper assay results greater than 100 ppm

from trenches T4, T7, and T8 at the Fossil Hill Zone.

Sample

Number

Trench

Number

Sample

Type

From

(m)

Interval

Length

(m)

Mineralization

Cu ppm

H098312

Outcrop

9.8

Malachite

2,700

H098315

Outcrop

18.8

Malachite

223

H098318

Outcrop

31.2

Malachite

4,130

H098334

Outcrop

32.6

Malachite

9,590

H098320

Outcrop

34.9

1,330

H098353

Channel

9.4

9.8

0.4

476

H098354

Channel

12.1

13.1

293

H098356

Float

17.6

Malachite

1,600

H098270

Outcrop

12.1

Chalcopyrite, malachite

3,860

H098271

Outcrop

13.8

Malachite

477

H098272

Outcrop

15.4

Chalcopyrite, malachite

3,140

H098273

Outcrop

17.8

Malachite, tenorite, chalcopyrite

9,080

H098274

Outcrop

19.8

Chalcopyrite, malachite

2,390

H098275

Outcrop

21.4

Malachite

396

H098277

Outcrop

103

H098265

Float

Native copper

2,300

H098278

Outcrop

26.5

Malachite

1,415

H098279

Outcrop

358

H098300

Outcrop

28.5

Native copper, malachite

9,210

H098281

Outcrop

597

H098282

Outcrop

Malachite

1,340

H098283

Outcrop

118

H098285

Outcrop

129

H098286

Outcrop

208

H098287

Outcrop

Tenorite

128

H098288

Outcrop

Malachite, azurite

269

H098305

Outcrop

64.1

Tenorite

107

Magna Terra would like to acknowledge and thank the Province of New Brunswick for partial financial

assistance granted for work on the Rocky Brook Project under the New Brunswick Junior Mining

Assistance Program ("NBJMAP").

The Rocky Brook Project

The Rocky Brook Project comprises 31,489 hectares in 75 mineral claims making the Company one of

the single largest strategic landholders in this historic mining camp (

Figure 1

). The Rocky Brook Project

is located adjacent to and along strike from the Williams Brook Project, owned by Kinross Gold

Corporation ("Kinross") and Puma, where a zone of high-grade gold mineralization was discovered over

broad widths including drill intervals up to 5.55 g/t Au over 50.15 m (refer to Puma's news release dated

September 15, 2021). The Project is located adjacent to a 30-kilometre-long section of the Rocky

Brook-Millstream Fault and associated McIntyre and Ramsay Brook faults; an important structural zone

controlling gold mineralization within the region. The Project also covers volcanic and sedimentary rocks

that show strong potential to host polymetallic Cu-Co-Pb-Zn-Au-Ag mineralization, adjacent to the past-

producing Caribou Mine and the Murray Brook Deposit, which is the largest undeveloped VMS project in

New Brunswick owned by Canadian Copper Inc. (

Figure 1

The Bathurst Camp

The BMC is one of the world's oldest base metal (lead, zinc, copper, gold and silver) mining districts

hosting one of Canada's largest VMS deposits, with the past-producing Brunswick No. 12 Mine having

operated for 49 years. The BMC is host to over 46 mineral deposits, several of which have been mined,

including the Brunswick No. 6, Heath Steele, Wedge, Stratmat, Half Mile Lake, Caribou and Murray

Brook. A total of 136,643,367 tonnes of ore grading 3.44% Pb, 8.74% Zn, 0.37% Cu, and 102.2 g/t Ag

were mined from the BMC (McCutcheon and Walker, 2020**).

Figure 1:

A map showing the location of the Rocky Brook Project, adjacent exploration projects, fault

zones, and mineral occurrences.

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

https://images.newsfilecorp.com/files/11586/289813_87cb87f6b47eaa95_002full.jpg

Figure 2:

A map showing the location of the Rocky Brook Project, regional geology and major target

areas including the Fossil Hill Zone.

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

https://images.newsfilecorp.com/files/11586/289813_87cb87f6b47eaa95_003full.jpg

Figure 3:

A map showing the soil sample location and anomalous Cu, Zn, Au, and Ag results overlying

historic airborne MegaTEM survey.

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

https://images.newsfilecorp.com/files/11586/289813_87cb87f6b47eaa95_004full.jpg

Figure 4:

Map Showing Location of Trenches T4, T7, and T8

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

https://images.newsfilecorp.com/files/11586/289813_87cb87f6b47eaa95_005full.jpg

Figure 5:

Trench T4 Rock Sample Location with Copper Results

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

https://images.newsfilecorp.com/files/11586/289813_87cb87f6b47eaa95_006full.jpg

Figure 6:

Trench T7 Grab and Channel Sample Location with Copper Results (Cu assay values labelled

as well as interval lengths for channels)

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

https://images.newsfilecorp.com/files/11586/289813_87cb87f6b47eaa95_007full.jpg

Figure 7:

Trench T8 Rock Sample Location with Copper Results

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

https://images.newsfilecorp.com/files/11586/289813_87cb87f6b47eaa95_008full.jpg

Figure 8:

A) Sample H098334, 9,590 ppm Cu in Hematite-Carbonate-Epidote Mafic Volcanic Breccia

with Malachite; B) Sample H098273, 9080 ppm Cu in Quartz Vein Hosting

Chalcopyrite+Malachite+Azurite, and Possibly Tenorite; C) Sample H098300, 9,210 ppm Cu in Massive

Mafic Volcanics with Native Copper in Quartz-Calcite Veinlet.

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

https://images.newsfilecorp.com/files/11586/289813_87cb87f6b47eaa95_009full.jpg

Restigouche Option Agreement - First Anniversary Payment

Under the terms of the Restigouche option agreement, the Company can earn a 100% interest in the

Restigouche property by paying the Optionor a total of $50,000 in cash, $110,000 in cash and/or

common shares, and issuing 266,000 common shares over a four-year period (refer to the press

release dated February 27, 2025). On January 12, 2026, the Company issued 129,198 common shares

of the Company and paid $5,000 in cash to settle the first anniversary payment totalling $25,000.

The common shares issued are subject to a regulatory four month and one day hold period from their

date of issuance.

Qualified Person and Technical Notes

This news release has been reviewed and approved by David A. Copeland, P.Geo., a "Qualified

Person", under National Instrument 43-101 - Standard for Disclosure for Mineral Projects.

All rock and soil samples collected were submitted to ALS Canada Ltd. in Moncton, New Brunswick for

processing and then transported to their facility in North Vancouver, BC for gold (method AU-AA23) and

multi-element geochemistry, including elements Cu, Pb, Zn, Co, and Ag (method ME-ICP41).

All quoted drill core and rock samples results were compiled from historic assessment and government

reports obtained from the government of New Brunswick. The Qualified Person has not completed

sufficient work to validate these historic results.

* Grab samples are selective by nature and may not represent the true metal content of the mineralized zone.

**McCutcheon, S. R., & Walker, J. A. (2020). Great Mining Camps of Canada 8. The Bathurst Mining Camp, New Brunswick, Part 2: Mining History and

Contributions to Society. Geoscience Canada, 47(3), 143-166

About Magna Terra

Magna Terra Minerals Inc. is a precious and critical metals focused exploration company, headquartered

in Toronto, Canada. Magna Terra is focused on acquiring and advancing its high-potential mineral

projects in Atlantic Canada and Argentina while generating value for shareholders and minimizing

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