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Kirkland Lake Discoveries Initiates Inaugural Drill Program to Test Intrusive Polymetallic Mineralization Around Winnie Pluton

Exploration Programs

Kirkland Lake Discoveries Initiates Inaugural

Drill Program to Test Intrusive Polymetallic

Mineralization Around Winnie Pluton

Toronto, Ontario--(Newsfile Corp. - August 6, 2025) -

Kirkland Lake Discoveries (TSXV: KLDC)

(OTCID: KLKLF) ("KLDC" or the "Company")

is pleased to announce the commencement of its

inaugural diamond drill program (the "Program") at the KL West Project and Winnie Lake Project,

located in the prolific Abitibi Greenstone Belt near Kirkland Lake, Ontario. This milestone marks a major

advancement in the Company's exploration efforts as it targets an intrusive-related polymetallic system

with compelling discovery potential.

The Program will follow up on both historical drilling and recent surface exploration results, which

together support a new geological model: that the Winnie Pluton is the source of the surrounding

polymetallic mineralization. This updated interpretation evolved over the past year, beginning with broad

soil geochemistry identifying elevated pathfinder elements around the pluton, and refined through the

Company's spring exploration program, which uncovered significant new mineralization and structural

context.

Highlights from recent work:

From the

July 9

th

, 2025 News Release

:

High-grade grab samples from the Winnie shaft area returning values up to

5.7% copper (Cu)

,

5.3% zinc (Zn)

,

1.6 g/t gold (Au)

, and

28.2 g/t silver (Ag)

.

A grab sample from a quartz vein within the intrusion containing

1,235 g/t bismuth (Bi)

,

0.13%

Cu

,

0.03 g/t Au

, and

12.75 g/t Ag

.

From the

July 24

th

, 2025 News Release

:

Channel sampling at Mini Winnie returning

2.05% Cu

,

735 g/t Bi

,

0.108 g/t Au

, and

5.5 g/t Ag

over

0.6 m

,

A quartz-vein-dense area within the intrusion averaging

35.5 g/t Bi

over

17 m

.

In 2024, soil geochemistry at KL West identified seven key areas of elevated pathfinder minerals

surrounding the Winnie Pluton, several were coincident with magnetic high responses.

This initial drill campaign will test multiple targets both within the intrusive body and along its contacts

(see Figures 1 and 2), prioritized based on geochemical anomalies, geophysical signatures, and

geological mapping. The objective is to validate the intrusive-related model and identify mineralized

zones of continuity at depth for follow-up drilling.

Figure 1

: Planned drill holes at KL West testing coincident geophysical and geochemical anomalies.

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

https://images.newsfilecorp.com/files/5701/261417_02b97a6d4435fbe2_001full.jpg

Figure 2

: Planned drill hole locations targeting mineralized trends at surface and magnetic lows within

the intrusion at Winnie Lake Project.

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

https://images.newsfilecorp.com/files/5701/261417_02b97a6d4435fbe2_002full.jpg

"This is a very exciting moment for KLDC,"

said Stefan Sklepowicz, CEO of Kirkland Lake

Discoveries.

"KL West and Winnie Lake represent a rare opportunity to test a potentially significant

polymetallic system that has seen limited modern exploration. With strong surface results, supportive

geology, and a well-developed model, we believe this program could be a catalyst for a new

discovery."

The planned ~2,000m drill program is expected to complete within August. Assay results will be

released as received and interpreted.

QP Statement

The technical information contained in this news release has been approved by Mike Kilbourne, P.Geo.,

Senior geologist and independent contractor, who is a Qualified Person as defined in National

Instrument 43-101, Standards of Disclosure for Mineral Projects.

About Kirkland Lake Discoveries Corp.

Kirkland Lake Discoveries Corp. (TSX-V: KLDC) has assembled a 400-km

2

exploration portfolio in the

Kirkland Lake region of Ontario's Abitibi Greenstone Belt-one of the most prolific mining districts in the

world. The Company's properties span key fault zones, geophysical anomalies, and volcanic-

sedimentary contacts within the Blake River Group-a highly prospective assemblage known to host both

gold and polymetallic VMS deposits.

With multiple anomalous soil trends, historical showings, and structural intersections now permitted for

exploration, KLDC is advancing a pipeline of drill-ready targets across its KL East and KL West project

areas. The team combines strong technical experience with a focus on smart, efficient exploration

designed to deliver results.

For additional information, please contact:

Stefan Sklepowicz

Chief Executive Officer

www.kirklandlakediscoveries.com

+1 226 979 3515

[email protected]

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.

Forward-Looking Statements

This news release contains certain "forward-looking information" and "forward-looking statements"

(collectively "forward-looking statements") within the meaning of applicable securities legislation. All

statements, other than statements of historical fact, included herein, without limitation, statements

relating the future operations and activities of Kirkland Lake Discoveries, are forward-looking

statements. Forward-looking statements are frequently, but not always, identified by words such as

"expects", "anticipates", "believes", "intends", "estimates", "potential", "possible", and similar

expressions, or statements that events, conditions, or results "will", "may", "could", or "should" occur or

be achieved. Forward-looking statements in this news release relate to, among other things, the

Company's drill program, the results thereof, and any impact therefrom. There can be no assurance that

such statements will prove to be accurate, and actual results and future events could differ materially from

those anticipated in such statements. Forward-looking statements reflect the beliefs, opinions and

projections on the date the statements are made and are based upon a number of assumptions and

estimates that, while considered reasonable by Kirkland Lake Discoveries, are inherently subject to

significant business, economic, competitive, political and social uncertainties and contingencies. Many

factors, both known and unknown, could cause actual results, performance or achievements to be

materially different from the results, performance or achievements that are or may be expressed or

implied by such forward-looking statements and the parties have made assumptions and estimates

based on or related to many of these factors. Such factors include, without limitation, the ability to

complete proposed exploration work, the results of exploration, continued availability of capital, changes

in general economic, market and business conditions, and the ability to obtain any requisite approvals.

Readers should not place undue reliance on the forward-looking statements and information contained in

this news release concerning these items. Kirkland Lake Discoveries does not assume any obligation to

update the forward-looking statements of beliefs, opinions, projections, or other factors, should they

change, except as required by applicable securities laws.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/261417