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

ONYX.V ·

Onyx Gold Continues to Consolidate Key Ground at Munro- Croesus with Strategic Acquisitions Total Project Land Holdings Expanded to 109 km2 to cover Key Geological Real Estate

Corporate Updates

June 24th, 2025 NR# 028-2025

NEWS RELEASE

Onyx Gold Continues to Consolidate Key Ground at Munro-

Croesus with Strategic Acquisitions

Total Project Land Holdings Expanded to 109 km2 to cover Key Geological Real

Estate

Vancouver, BC – June 24th, 2025 – Onyx Gold Corp. (“Onyx Gold” or the "Company") (TSX-

V: ONYX, OTCQX: ONXGF) is pleased to announce that it has signed mineral property purchase

and sale agreements (the “ Purchase Agreements”) with two separate a rm’s length private

vendors through its wholly -owned subsidiary to acquire a 100% interest in the Munro property

(the “ Munro Property”) and Hewitt propert y (the “ Hewitt Property”, and collectively with the

Munro Property, the “ Properties”) located within and proximal to the company’s 100% owned

Munro-Croesus Project (the “Munro-Croesus Project” or the “Project”), 75 km east of Timmins,

Ontario (Figure 1).

These strategic acquisitions expand Onyx Gold’s Munro -Croesus land package to 10,921

hectares (109 km²), further enhancing the Company’s footprint and reinforcing its position as a

leading gold explorer in the Timmins Camp.

“These acquisitions are another step forward in executing our strategy to consolidate prospective,

but highly underexplored ground in one of Canada’s most prolific gold camps,” said Brock

Colterjohn, President & CEO of Onyx Gold. “The addition of the Munro property , in particular,

further enhances the strategic value of our Munro -Croesus Project by expanding our footprint

along the prospective ‘Croesus Flow’ — a key geological unit that hosts the historic high-grade

Croesus Mine and our recently discovered GM Vein, just 350 metres away. We’re excited to

advance these new properties and unlock additional high -impact drill targets for future

exploration.”

Terms of the Purchase Agreement for the Munro Property Claims

The Munro Property is a strategically located 227-hectare inholding within the Munro -Croesus

Project (Figure 2 ). The Property covers the northwestern strike extension of the highly

prospective mafic volcanic pillowed flow (the Croesus Flow), which hosts the past producing high-

grade Croesus Gold Mine, the new GM vein target (see Company news release dated May 1,

2024), and numerous other prospects. The Munro Property also hosts the fully reclaimed past

producing Munro Mine which produced chrysotile asbestos from 1950 to 1964.

The Company has the right to acquire 100% of the Munro Property from the vendor, pursuant to

the mineral property purchase and sale agreement (the “ Munro Agreement”) by making two

staged cash payments over 12 months for a total aggregate consideration of $300,000 and

subject to the completion of satisfactory due diligence, including receipt and review of

environmental study results.

Terms of the Purchase Agreement for the Hewitt Property Claims

The Hewitt Property is situated on a northeast -trending secondary fault splay to the Painkiller

Fault and contains gold-bearing mineralization with grab samples yielding 15.7 g/t Au, 5.6 g/t Au,

4.8 g/t Au, and 2.5 g/t Au2.

The Company has entered into a mineral property purchase and sale agreement (the “ Hewitt

Agreement”) with the vendor for its 50% interest in the Hewitt Property for total consideration of

$20,000 and 75,000 common shares of the Company . Onyx currently owns the remaining 50%

interest in the Property.

In addition, the Company will grant the vendor a 1.0% net smelter returns royalty on the Hewitt

Property.

The Purchase Agreements are subject to the approval of the TSX Venture Exchange (the

“Exchange”).

Consultant Agreement

The Company has also entered into an investor relations agreement (the "IR Agreement") dated

June 19th, 2025, with Chad Levesque Consulting ("CLC").

CLC has been retained for an initial term of six (6) months, with an anticipated start date of June

24th, 2025 (the “Initial Term”), to provide corporate and communications services to the Company,

in consideration for an aggregate amount of $5,000 per month in cash as well as the

reimbursement of reasonable and standard travel and other expenses incurred by CLC in

connection with the services performed thereunder.

In addition, CLC will be granted 100,000 stock options (the “ Options”) with an exercise price

determined based on the market price of the Company’s shares at the time of issuance and

expiring within 5 years of the date of issuance. The stock options shall vest over 12 months with

no more than 1/4 of the options vesting in any 3 -month period, in accordance with the terms of

the Company's stock option plan. Following completion of the Initial Term either Onyx Gold or

CLC may terminate the Agreement with 30 days' notice.

CLC and the Company are arm’s length parties. CLC is principally owned by Chad Levesque.

The entering into the IR Agreement and the grant of the stock options thereunder are subject to

the approval of the Exchange.

Figure 1 – Munro-Croesus Gold Project with Newly Acquired Claims Highlighted in Yellow

Figure 2 – Newly Acquired Munro Property Claims Highlighted in Red, Partially Cover The

Prospective ‘Croesus Flow’

The Munro-Croesus Project

The Munro-Croesus Project is located along Highway 101 in the heart of the Abitibi greenstone

belt, Canada's premier gold mining jurisdiction (Figure 1). This large, 100% owned land package

includes the past-producing Croesus Gold Mine, which yielded some of the highest -grade gold

ever mined in Ontario. Extensive land consolidation from 2020-2025 has unified the patchwork of

patented and unpatented mining claims surrounding the Croesus Gold Mine into one coherent

package and enhanced the project's exploration potential.

The Project covers 109 km 2 of highly prospective geology within the influence of major gold -

bearing structural breaks. Bulk-tonnage gold deposits located in the immediate region include the

Fenn-Gib gold project being developed by Mayfair Gold Corp. that contains an Indicated

Resource of 4.31 Moz at 0.74 g/t Au and an Inferred Resource of 141 koz at 0.49 g/t Au, and the

Tower Gold Project being developed by STLLR Gold Inc. that contains an open pit Indicated

Resource of 4.46 Moz at 0.92 g/t Au and an Inferred Resource of 8.29 Moz at 1.09 g/t Au1.

About Onyx Gold

Onyx Gold is an exploration company focused on well-established Canadian mining jurisdictions,

with assets in Timmins, Ontario, and Yukon Territory. Totaling more than 444 km2, the Company’s

extensive portfolio of quality gold projects in the greater Timmins gold camp includes the Munro-

Croesus Gold property, renowned for its high -grade mineralization, plus two additional earlier -

stage large exploration properties, Golden Mile and Timmins South. The Golden Mile 140 km 2

property is located 9 km northeast of Newmont’s multi -million-ounce Hoyle Pond deposit in

Timmins. The Timmins South 187 km2 property is located to the south and southeast of Timmins

and surrounds the Shaw dome structure.

Onyx Gold also controls four properties in the Selwyn Basin area of Yukon Territory, which is

currently gaining significance due to recent discoveries in the area. Onyx Gold’s experienced

board and senior management team are committed to creating sharehold er value through the

discovery process, careful allocation of capital, and environmentally/socially responsible mineral

exploration.

On Behalf of Onyx Gold Corp.

“Brock Colterjohn”

President & CEO

For further information, please visit the Onyx Gold Corp. website at www.onyxgold.com or contact:

Brock Colterjohn, President & CEO

or

Nicole Hoeller, NIKLI Communications – [email protected]

Phone: 1-604-283-3341

Email: [email protected]

Website: www.onyxgold.com

LinkedIn: https://www.linkedin.com/company/onyx-gold-corp

Twitter: https://twitter.com/OnyxGoldCorp

Ian Cunningham-Dunlop, P.Eng., Executive Vice President for Onyx Gold Corp . and a qualified

person ("QP") as defined by Canadian National Instrument 43 -101, has reviewed and approved

the technical information contained in this release.

Neither 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 release.

Cautionary and Forward-Looking Statements

This news release includes certain statements and information that may constitute forward -looking information within

the meaning of applicable Canadian securities laws. Forward -looking statements relate to future events or future

performance and reflect the expectations or beliefs of management of the Company regarding future events at the time

of this news release . Generally, but not always, forward -looking statements and information can be identified by the

use of forward -looking terminology such as “seek”, “anticipate”, “believe”, “plan”, “estimate”, “forecast”, “expect”,

“potential”, “project”, “target”, “schedule”, “budget” and “intend” and statements that an event or r esult “may”, “will”,

“should”, “could” or “might” occur or be achieved and other similar expressions and includes the negatives thereof. This

information and these statements, referred to herein as "forward‐looking statements", are not historical facts, are made

as of the date of this news release and include without limitation, statements regarding discussions of future plans,

estimates and forecasts and statements as to management's expectations and intentions with respect to, among other

things, statements regarding obtaining required regulatory approvals for the Purchase Agreements and the IR

Agreement, the issuance of the Op tions under the IR Agreement, the Company’s future exploration plans; and other

statements that are not historical facts.

These forward‐looking statements involve numerous risks and uncertainties and actual results might differ materially

from results suggested in any forward-looking statements. These risks and uncertainties include, among other things,

delays in obtaining or failure to ob tain required regulatory approvals for the Purchase Agreements and the IR

Agreement, that the Company may not issue the Options, and other risks associated with executing the Company’s

objectives and strategies as well as those risk factors d iscussed in the Company’s continuous disclosure documents

filed under the Company’s SEDAR+ profile at www.sedarplus.ca.

In making the forward looking statements in this news release, the Company has applied several material assumptions,

including without limitation, the assumption that the Company will obtain the required regulatory approvals for the

Purchase Agreements the IR Agreement, that the Company will issue the Options, and that the Company will have the

necessary resources to carry out its exploration plans as anticipated, or at all.

Although management of the Company has attempted to identify important factors that could cause actual results to

differ materially from those contained in forward-looking statements or forward-looking information, there may be other

factors that cause res ults not to be as anticipated, estimated or intended. There can be no assurance that such

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

in such statements. Accordingly, readers should not place undue reliance on forward-looking statements and forward-

looking information. Readers are cautioned that reliance on such information may not be appropriate for other purposes.

The Company does not undertake to update any forward -looking statement, forward-looking information or financial

outlook that are incorporated by reference herein, except in accordance with applicable securities laws. We seek safe

harbor.