Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

MTS.V ·

Metallis Resources Advances High- Grade Silver Potential at Greyhound Property, Idaho, USA

Exploration Programs

METALLIS RESOURCES ADVANCES HIGH-

GRADE SILVER POTENTIAL AT GREYHOUND

PROPERTY, IDAHO, USA

VANCOUVER, BC

,

May 14, 2024

/CNW/ -

Metallis Resources Inc.

(TSXV: MTS) (OTCQB:

MTLFF) (the "Company" or "Metallis") is pleased to report that further compilation work completed

on the historic Greyhound Mine has increased the understanding of silver distribution, enabled the

modelling of mineralization, and improved the Company's confidence in the historic silver grades.

This critical information will help guide the geological team with their upcoming field program and

provide potential near-term drill targets as they add to the inventory of mineralized shoots* on the

Greyhound Property ("Property").

Metallis' VP of Exploration,

Dave Dupre

stated, "What attracted us to the Greyhound Property, other

than the impressive historic silver grades, is the fact that none of the previous operators tested

above or below the high-grade shoots that were encountered in the historic mining. This recent

compilation work and resulting geological modeling indicates that, within the consistently mineralized

shear, there are high-grade shoots that have a near-vertical orientation and provide significant room

for discovery above and below the strong untested showings that already exist across the property."

He went on to add, "We are extremely excited to get boots on the ground in the coming months and

test these concepts with modern exploration techniques."

Compilation Work Highlights:

Recent modeling has identified a vertical orientation to the mineralization which is untested to

date and provides the Company its first potential near-term drill targets across several

established showings;

Preliminary metallurgical testing, carried out by a previous operator in 1988, resulted in very

high silver recoveries of 95%; and

Historical grades taken from the mineralized shoots compare favorably against developed silver

deposits globally.

Long section through the Lower Rufus Adit demonstrating the vertically oriented shoots. (CNW

Group/Metallis Resources Inc.)

* A shoot is a mining term used to describe a segment of the mineralized shear zone which has a

grade and width which has potential to be economic.

Using a cut-off grade of 250 g/t Ag over a

length of

7m

as a minimum for a shoot, there are four lengths (shown on the long section above)

where this threshold is met. The shoots are wider than most parts of the mineralized shear and

their grade (especially after dilution of their grade in the narrow parts to a

1.5m

minimum mining

width) is significantly higher. As no economic studies have been completed on the property,

Metallis cannot guarantee that any mineralization constitutes as ore.

Continued examination of historic geological reports has determined that the mineralized shoots

encountered in the Lower Rufus Adit are controlled by dilatational zones in the left lateral Greyhound

shear. These zones occur as flexures or intersections of the shear with northeast striking cross

faults that likely predate the mineralization. This provides the framework for the vertically oriented

shoots encountered to date. Shoot 1350' (

36.9m

of 1.85 g/t Au and 785 g/t Ag), has been described

as correlating

170 m

to surface where high-grade mineralization is identified, and has never been

drill tested.

In the upcoming field program, the team is excited to test the vertical continuity at the historic

showings as they provide immediate drill targets. These targets include, the Lower Rufus, Upper

Rufus, Birdie, General Grant, Bulldog, and the Buckhorn. The large vertical scale of the system has

already been demonstrated with over

500 m

of elevation difference between mineralized surface

samples taken at Greyhound Ridge and the Lower Rufus Adit. The analogous Lucky Friday Mine in

northern

Idaho

shows a vertical orientation and is one of the deepest mines in

North America

with

underground workings as low as 3000 meters below surface.

Other compilation work has revealed strong silver recoveries in metallurgical testing reports from

1988 and demonstrates the viability of this prospect in producing excellent concentrates. Basic

flotation tests were completed on two 50-pound bulk samples taken from the Lower Rufus Adit and,

although the tests were preliminary and basic in nature, the reports are encouraging and

demonstrated that up to 95% of the silver can be recovered from the sulfide ore.

Photo of massive sulfide face at the head of the Lower Rufus Adit (1989) (CNW Group/Metallis

Resources Inc.)

The technical team has also been compiling information on the size and grade of various global silver

deposits. Although the Greyhound property has a large amount of work to be completed before a

resource could be calculated, it is encouraging to see that the systematic historic channel sampling

on the property has returned grades that are on par if not better than several advanced projects and

mines currently in production.

The Company also announces that, pursuant to the terms of the Company's stock option plan, the

Board of Directors has approved the grant of an aggregate of 1,750,000 incentive stock options

("Options") to certain directors, officers, and consultants, at an exercise price of

$0.15

per share,

exercisable for a period of five years. The Options are subject to regulatory approval from the TSX

Venture Exchange. Along with previously granted stock options that remain outstanding and

exercisable, the Company now has 6,000,000 outstanding stock options, representing 8.76% of the

68,455,003 outstanding shares of the Company.

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.

Note: The reader is cautioned that all measurements and metal grades are derived from previous reports and

Metallis has not independently confirmed the results.

The similarity

of values and conservative approach does lend confidence to these values.

About the Greyhound Property

The recently acquired Greyhound Property is in

Custer County, Idaho

, approximately 42 km

northwest of the town of

Stanley

. This 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 a 3.5 km

mineralized shear zone. Since 1910, the property has seen limited exploration and only minor

development when the Greyhound Mine was reactivated and mined from 1980-1991. The last

remaining ore from this period was shipped to a smelter in 2000 and the property remains

substantially underexplored.

About Metallis

Metallis Resources Inc. is a

Vancouver

-based company focused on the exploration for gold, copper,

and silver on its flagship 100%-owned Kirkham Property in

Canada

, situated in northwest

British

Columbia's

Golden Triangle, and on its recently acquired 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.

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.

View original content to download multimedia:

http://www.newswire.ca/en/releases/archive/May2024/14/c8616.html

%SEDAR: 00025829E

For further information:

Tel: 604-688-5077, Email: [email protected], Web:

www.metallisresources.com

CO: Metallis Resources Inc.

CNW 09:00e 14-MAY-24