MTT.V · 2025-11-04 12:00:00

Magna Terra Extends Zone of Surface Copper Mineralization to 2.2 Kilometres at the Humber Copper-Cobalt Project in Newfoundland

Drill Results

Magna Terra Extends Zone of Surface Copper

Mineralization to 2.2 Kilometres at the Humber

Copper-Cobalt Project in Newfoundland

Toronto, Ontario--(Newsfile Corp. - November 4, 2025) -

Magna Terra Minerals Inc.

(TSXV:

MTT)

Magna Terra

" or the "

Company

") is pleased to announce that it has extended the zone of

recently discovered copper mineralization along the Hughes Lake Trend at its 100% owned Humber

Copper-Cobalt Project (the "Humber Project" or the "Project") located in western Newfoundland.

Prospecting and geological mapping completed this fall has extended the surface extent of copper

mineralized, dolomitized limestone along strike by an additional 1.2 kilometres to the east. The total

strike extent of copper mineralization now extends

2.2 kilometres

(

Figures 1, 2, and 3

). A total of 57

rock grab samples^ were collected in the most recent prospecting program. Assays are currently

pending, however visible copper mineralization between trace and 5% combined chalcopyrite, bornite

and malachite were noted in rock grab samples from the trend (

Figures 4, 5, and 6

The Company is also pleased to announce that it has commenced a program of regional stream silt

geochemical sampling on the greater project area. The stream silt geochemical sampling program,

along with the recently completed airborne geophysical survey, is aimed at defining priority targets on

this early-stage project, particularly in areas of elevated electromagnetic conductance (see news release

dated September 18, 2025).

Magna Terra would like to acknowledge and thank both the Province of Newfoundland and Labrador and

the Atlantic Canada Opportunities Agency ("ACOA") for their financial assistance through the Junior

Exploration Assistance ("JEA") program for work on the Humber Copper-Cobalt Project.

Humber Project Highlights

Discovery of

2.2 km

of surface copper mineralization at Hughes Lake;

Host to regionally anomalous Cu, Co, Ag, Pb +/- Au, Mo, As, and Sb lake sediments;

Airborne conductors coincident with lake sediment anomalies;

8+ km

Hughes Lake Copper-Cobalt Trend;

Analogous to the Kalahari Copper Belt, Namibia and Botswana; Central African Copper Belt,

Zambia and the Democratic Republic of Congo (DRC); and the Kupferschiefer Belt, Poland;

Globally, these Sediment-hosted Stratiform Copper ("SSC") deposit types represent 20% of Cu

production** and 60% of Co production^^;

District-scale land package now comprising

49,925 hectares

;

Located within the premier mining jurisdiction of Newfoundland and Labrador;

Year-round accessibility with road access to the majority of the Project;

First mover advantage in a previously unrecognized area of exploration potential; and

Acquired through staking - cost effective acquisition and with no underlying royalties or option

payments.

"The rapid growth of the surface strike extent of copper mineralization within the Hughes Lake Copper

Zone so early into our exploration efforts, is a very exciting development for Magna Terra and its

shareholders and certainly bodes well as we expand our systematic generative exploration efforts over

the expansive project area. It is gratifying that we are able to expand the current zone of copper

mineralization at Hughes Lake to a current strike length of 2.2 kilometres via traditional boot and

hammer prospecting. We look forward to additional assay results from this work. In the interim, we

continue to advance discovery of additional targets and zones of copper-cobalt-silver mineralization

on the broader property package, particularly in areas of higher conductivity outlined in the recently

completed airborne geophysical survey. While early stage, these initial generative results further

support our view that the Humber Project has the potential to host Sediment-hosted Stratiform Copper

deposits."

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

Lake Sediment Geochemistry and Global Analogues

The Project is underlain by rocks of the sedimentary Humber Arm Allochthon and adjacent plutonic and

volcanic Hughes Lake Complex, which is centred on a series of anomalous lake sediment samples

(Davenport et al., 1996) that show regionally elevated levels of Co (up to 160 ppm), Ag (up to 0.6 ppm),

Pb (up to 84 ppm), Cu (up to 185 ppm), As (up to 142 ppm), Mo (up to 15 ppm), and Au (up to 10 ppb).

An analysis of the lake sediment geochemical data via Principal Component Analysis has indicated that

the metal suite present within the Project area is likely related to a black shale source, as many of the

anomalous lake sediments have low-Ni values which precludes association with the nearby ophiolite

complexes to the immediate west.

This metal signature (Cu, Co, Ag, Pb +/- Au, Mo, As, Sb) and geological environment is supportive of the

area being host to SSC deposits. SSC deposits host 60% of global Cobalt production^^ and 20% of

global Copper production** in deposits such as the Central African Copper Belt, which is thought to be

analogous to the geological setting of the Humber Copper-Cobalt Project. SSC deposits are often

laterally continuous along bedding and contain consistent grades (1.2 to 5% Cu)** and large resources

of by-product Au, U, platinum-group, and rare-earth elements. The exploration potential is also

underscored by the presence of base metal deposits nearby including the York Harbour and Daniels

Harbour Deposits located at lower stratigraphic levels of the region.

Figure 1:

A map showing the Humber Project with underlying geology of the Humber Arm Allochthon,

coincident anomalous C

(ppm) lake sediment samples and location of the Hughes Lake Block.