Metallis Commences Drilling at Greyhound, Idaho

METALLIS COMMENCES DRILLING AT

GREYHOUND, IDAHO

VANCOUVER, BC

,

Aug. 22, 2025

/CNW/ - Metallis Resources Inc. (TSXV: MTS) (OTCQB: MTLFF)

Metallis Resources Inc. (the "Company" or "Metallis") is pleased to announce the commencement of

its inaugural drill program (the "Program") at the Greyhound Property, located in the historic Stibnite

Mining District of central

Idaho

. This first-ever drilling campaign will test high-grade silver, gold and

antimony targets within a 3.5 km-long mineralized shear zone.

Fiore Aliperti

, CEO of Metallis, commented, "Launching our inaugural drill program at Greyhound

marks a milestone moment for Metallis and for this historic property. For the first time, we are drill

testing a richly mineralized shear zone that has intrigued prospectors for over a century but has

never truly been explored with modern techniques. The combination of encouraging historical work,

our detailed groundwork, and the presence of multiple high-grade showings make the Greyhound a

highly compelling opportunity. With Foraco Drilling as our partner, our team is excited to begin

revealing the true potential of this underexplored property. We believe the results from this inaugural

program will provide the foundation for significant value creation for our shareholders."

Key Highlights

Drill program has been contracted to Foraco Drilling Ltd., a leading global drilling services

provider;

Up to

2,000 m

of diamond drilling is planned for the inaugural campaign;

The Program has been designed to test three high-priority targets along the 3.5 km mineralized

shear zone; and

This is the first systematic drill testing to ever be done at Greyhound, a historically significant

but underexplored property.

About the Program

The 2025 Program will consist of approximately 2,000 metres of diamond drilling across three high-

priority areas (

See News Release,

May 21, 2025

). Drilling will test the 1350' Target, where channel

sampling along a 36.9 m length of the Lower Rufus Adit returned 1.85 g/t Au and 785 g/t Ag

†

which warrants modern exploration; the Bulldog Target, a broad shear zone with multiple quartz-

sulfide veins and existing road access; and the Birdie Target, a parallel shear trend with adits and

trenches that point to additional mineralized potential.

About the Greyhound Property

In

February 2024

, the Company optioned the Property which is located in

Custer County, Idaho

,

approximately 42 km northwest of the town of

Stanley

and 35 km south of Perpetua Resources'

Stibnite Mine. The Property was the center of an active silver mining camp in the early 1900's and at

one point contained a smelter and two active mines situated along the 3.5 km Greyhound shear.

The Greyhound targets are hosted by prominent shear zones with polymetallic quartz - sulphide

veins containing elevated concentrations of gold, silver, antimony (a critical mineral), lead and zinc.

They are comparable to numerous mines in

North Idaho's

Silver Valley

along Interstate 90. This

famous district is one of the most prolific silver districts in the world. The total quantities produced

are impressive: over a billion ounces of silver, 3 million tons of zinc, and 8 million tons of lead totaling

over

$6 billion

in value, ranking the

Silver Valley

among the top ten mining districts in world history.

Qualified Person

David Dupre

, P.Geo, Vice President - Exploration and the Qualified Person, as defined by National

Instrument 43-101, has reviewed, and approved the technical information contained in this release.

†

The reader is cautioned that these measurements and metal grades are derived from historical

reports and Metallis has not independently confirmed the results. See Metallis news release dated

May 14, 2024

for more details.

About Metallis

Metallis Resources Inc. is a

Vancouver

-based company focused on the exploration for gold, copper

and silver on its 100%-owned Kirkham Property in

Canada

, situated in northwest

British Columbia's

Golden Triangle, and on the Greyhound Property, a gold/silver/antimony target in

Idaho, USA

.

Metallis trades under the symbols MTS on the TSX Venture Exchange, MTLFF on the OTCQB

Exchange, and 0CVM on the Frankfurt Stock Exchange, and has 84,680,003 common shares

outstanding.

On behalf of the Board of Directors:

/s/ "Fiore Aliperti"

Chief Executive Officer, President, and Director

CAUTION REGARDING FORWARD-LOOKING STATEMENTS

This Press Release may contain statements which constitute 'forward-looking' statements, including

statements regarding the plans, intentions, beliefs and current expectations of the Company, its

directors, or its officers with respect to the future business activities and operating performance of

the Company. The words "may", "would", "could", "will", "intend", "plan", "anticipate", "believe",

"estimate", "expect" and similar expressions, as they relate to the Company, or its management, are

intended to identify such forward-looking statements. Investors are cautioned that any such forward-

looking statements are not guarantees of future business activities or performance and involve risks

and uncertainties, and that the Company's future business activities may differ materially from those

in the forward-looking statements because of numerous factors. Such risks, uncertainties and

factors are described in the periodic filings with the Canadian securities' regulatory authorities,

including quarterly and annual Management's Discussion and Analysis, which may be viewed on

SEDAR at

www.sedarplus.ca

. Should one or more of these risks or uncertainties materialize, or

should assumptions underlying the forward-looking statements prove incorrect, actual results may

vary materially from those described herein as intended, planned, anticipated, believed, estimated,

or expected.

Although the Company has attempted to identify important risks, uncertainties and factors which

could cause actual results to differ materially, there may be others that cause results not to be as

intended, planned, anticipated, believed, estimated, or expected. The Company does not intend, and

does not assume any obligation, to update these forward-looking statements.

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

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

release. The TSX-V Stock Exchange has neither approved nor disapproved the contents of this

news release.

SOURCE

Metallis Resources Inc.

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For further information:

For further information: Tel: 604-688-5077, Email:

[email protected], Web: www.metallisresources.com

CO: Metallis Resources Inc.

CNW 08:00e 22-AUG-25