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GPS.V ·

Great Plains Metals Corp – Everlsey Project Update

Corporate Updates

Great Plains Metals Corp.

Contact: Investor Relations Wednesday, November 12, 2025

Phone (604) 684-2181 (No.2025-11-11)

Great Plains Metals Corp – Everlsey Project Update

Vancouver, BC, Canada – Wednesday, November 12, 2025 - Great Plains Metals Corp.

("GPS" or "the Company", TSX-V: GPS, Frankfurt Exchange: 8VC) is pleased to

announce that it has invested a further A$250,000 in Eversley Resources to increase its

equity stake to 37.1%. The funding will be utilized in further developing the North

Gawler Project in South Australia.

Highlights:

• GPS increases its stake from 24.4% to 37.1% in Eversley Resources

• GPS can increase its stake further by investing A$750,000 upon approval of

drilling permits

• Upcoming work program planned to advance towards drilling known

targets

• Multiple geophysical IOCG targets at shallow depth – potential district

scale

The Company has the option to further increase its stake upon the grant of drilling

permits by making an investment of A$750,000 to fund the drill program. The valuation

of this subsequent investment is to be determined at the higher of either the current

valuation (that this A$250,000 investment was made at) or an independent valuation to

be governed by the VALMIN Code.

North Gawler Project (South Australia)

The North Gawler Project (Figure 1) is a large district scale tenement package that

covers 2,584 square kilometres (granted and under application) with early-stage Iron

Oxide Copper Gold (IOCG) and ionic clay type rare earth elements (REE) exploration

opportunities. It is located in the under-explored region of the northern Gawler Craton

with major discovery potential. It is 150km NNE of Prominent Hill. Rio Tinto interpreted

the basement geology and confirmed district scale IOCG potential. Numerous IOCG

targets were identified by Rio Tinto in an area of shallow cover during the early 2000’s

but only limited follow-up exploration was completed.

The Jupiter target is ~7km long ovoid felsic pluton with surrounding iron-altered

magnetic lithologies, including remnant magnetism (figure 2). The depth to the

basement is estimated at 75 to 150 metres. In 1984, BHP drill holes intersected

basement schists around 100 metres depth with magnetite±chalcopyrite mineralisation.

The Ganymede target is an ~15x1km, NW-trending magnetic anomalous zone adjacent

to Keswick Fault with interpreted Fe metasomatism. The depth to basement is

estimated at 50 to 150 metres. It is very rare to identify shallow IOCG targets in South

Australia.

In addition to the IOCG district scale potential, there is an Ionic Clay REE prospect at

Victory. Ground spectrometer surveying and regolith grab sampling by Reedy Lagoon

Corp Ltd in 2010 identified anomalous Cu-Co-U as well anomalous REE’s. Sample

descriptions indicate that the highest grade REE samples are associated with kaolinized

saprolite at shallow depth below surface (0.1 to 0.5 metres) and indicate the potential

for ionic clay type REE mineralization. Proof of concept to establish ionic clay type REE

potential can be done inexpensively using grid based hand auger sampling and

metallurgical test work.

Exploration Work Program

The upcoming work program includes GIS data acquisition, spectral analysis for

alteration signatures; refinement of geophysical models and drill planning for priority

IOCG targets.

In addition to the work program at North Gawler Project, further work will be done to

advance the granting of the tenement at the Ashburton Project in Western Australia

including data compilation – magnetics, gravity and GIS data for modelling and targeting

with a view to plan a reconnaissance field exploration program.

Aidan Bishop, CEO, commented:

“GPS is pleased to increase its stake in Eversley Resources and we plan to advance

our position further as the project reaches certain milestones. The geophysical

anomalies have identified clear areas of interest. The upcoming work program will seek

to further refine known drill targets where district scale IOCG potential exists at shallow

depths below cover.”

Qualified Person: The scientific and technical data contained in this news release, has

been reviewed and approved by Douglas J. Kirwin, who serves as the qualified person

(QP) under the definition of National Instrument 43-101.

Figure 1. Map showing location of Eversley’s North Gawler Project exploration tenements in

South Australia.

Figure 2. Eversley’s North Gawler Project exploration targets with reduced-to-pole (RTP)

magnetics image.

GREAT PLAINS METALS CORP.

For further information, please contact:

Peeyush Varshney

Phone: (604) 684-2181

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is

defined in the policies of the TSX Venture Exchange) accepts responsibility for the

adequacy or accuracy of this press release.

Cautionary Note Regarding Forward-Looking Statements

This news release contains certain statements that may be deemed “forward-looking

statements.” Forward-looking statements are statements that are not historical facts and are

generally, but not always, identified by the words “expects”, “plans”, “anticipates”, “believes”,

“intends”, “estimates”, “projects”, “potential” and similar expressions, or that events or conditions

“will”, “would”, “may”, “could” or “should” occur. Although the Company believes the

expectations expressed in such forward-looking statements are based on reasonable

assumptions, such statements are not guarantees of future performance and actual results or

realities may differ materially from those in forward looking statements. Forward looking

statements are based on the beliefs, estimates and opinions of the Company’s management on

the date the statements are made. Except as required by law, the Company undertakes no

obligation to update these forward-looking statements in the event that management’s beliefs,

estimates or opinions, or other factors, should change.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined

in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or

accuracy of this press release.