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Onyx Gold Closes Strategic Acquisition of the Lalonde Property in Timmins, Ontario

Mergers & Acquisitions Property Options & Staking

Onyx Gold Closes Strategic Acquisition of the

Lalonde Property in Timmins, Ontario

Vancouver, British Columbia--(Newsfile Corp. - April 18, 2024) -

Onyx Gold Corp.

(

TSXV: ONYX

)

(

OTCQX: ONXGF

) is pleased to announce that it has completed the previously announced acquisition

of the Lalonde Property (the "

Property

") located east of Timmins, Ontario (see Company news release

dated January 30

th

, 2024).

The Property expands the Munro-Croesus Property ("

Munro-Croesus

" or the "

Project

") to 9,235

hectares ("

ha

"), a 32% increase (

Figure 1

). This adds substantial exploration potential across this

relatively underexplored yet highly prospective section of the Timmins Gold Camp. The Property is

contiguous and on strike with Munro-Croesus and is host to multiple high-grade gold occurrences.

The Acquisition cost for 100% ownership was 400,000 shares and C$20,000 (a total value of $93,000

based on the Company's 20-day volume-weighted average price at the time the agreement was

announced). The Property is subject to underlying NSR royalties of 2.0% owned by a third party.

Highlights of the Lalonde Property and the Agreement:

Large (2,235 ha) land package (

Figure 2

) contiguous and on strike to Munro-Croesus and directly

north of Mayfair Gold's 3.5 Moz Au Fenn-Gib Deposit

1

.

+10 near-surface gold prospects and occurrences with gold values ranging from 1.03 grams per

tonne ("g/t") gold ("Au") to

41.1 g/t Au, 57.8 g/t Au, and

2,500 g/t Au

2

.

The C Zone, the most advanced prospect on the Property, returned spectacular coarse-grain gold

in quartz veins from a blasted trench grading up to 2,500 g/t Au (

Plate 1

). This high-grade vein has

characteristics similar to the nearby historic Croesus Mine, indicating the potential for more

'Croesus-like' veins on the Property.

There has been limited work done on the Property since the 1980s, with the last work done in

2011.

Excellent access to the Property with paved Highway 101 passing near the southern boundary

"The Lalonde Property is a great addition to our Munro-Croesus Project," said Brock Colterjohn,

President & CEO. "It significantly increases Onyx's landholdings in the district, underscoring the

Company's commitment to maximizing its presence and potential in the Timmins Gold Camp. We see

excellent potential for additional mineral discoveries on the Property, which has seen no exploration work

since 2011. In our view, the work completed to date has only scratched the surface of the Property's

potential, and we look forward to starting work there this summer."

2024 Summer Work Program

Onyx is planning a maiden summer field program consisting of mechanized stripping, sampling, field

mapping, and prospecting to validate the +10 known gold prospects and generate new prospective

targets. The information generated from this program will help prioritize drill targets ahead of a potential

drill program later this year.

Figure 1 - Munro-Croesus Property Top Gold Targets

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

https://images.newsfilecorp.com/files/9800/205957_93d1c770d47dfa5f_002full.jpg

Figure 2 - Munro-Croesus Property Geology and Lalonde Acquisition

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

https://images.newsfilecorp.com/files/9800/205957_93d1c770d47dfa5f_003full.jpg

Plate 1 - Coarse Gold in Blasted Vein Samples from C Zone (2,500 g/t Au)

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

https://images.newsfilecorp.com/files/9800/205957_93d1c770d47dfa5f_004full.jpg

About 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. 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 2020-2023 has unified the patchwork of patented and unpatented

mining claims surrounding the Croesus Gold Mine into one coherent package (

Figure 1

) and enhanced

the exploration potential of the Project. The Project covers 92 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 3.38 Moz at 0.93 g/t Au and an Inferred Resource of 157 koz at 0.85

g/t Au, and the Tower Gold Project being developed by Moneta 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 Au

1

.

About the Timmins Area Gold Properties

Onyx owns 100% of its three Timmins properties, totaling 420 km

2

in size. The Munro-Croesus Gold

Project is located approximately 75 kilometers (47 miles) east of Timmins, proximal to the Porcupine-

Destor and Pipestone Faults, and approximately two kilometers (1.2 miles) northwest and along trend of

Mayfair Gold Corp.'s multi-million ounce Fenn-Gib gold deposit. Mining occurred intermittently at Munro-

Croesus between 1915 and 1936. The Golden Mile 140 square kilometer (54 square miles) property is

located nine kilometers (5.6 miles) northeast of Newmont's multi-million-ounce Hoyle Pond deposit in

Timmins. The Timmins South (Golden Perimeter) 187 square kilometers (72 square miles) property is

located to the south and southeast of Timmins and surrounds the Shaw dome structure.

About Onyx Gold

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

assets in Timmins, Ontario, and Yukon Territory.

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.

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 shareholder value through the discovery

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

Qualified Person and Quality Assurance

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.

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, VP of Corporate Communications

Phone:

1-604-629-1165

or North American toll-free

1-855-629-1165

Email:

[email protected]

or

[email protected]

.

Website:

www.onyxgold.com

LinkedIn:

https://www.linkedin.com/company/onyx-gold-corp/?viewAsMember=true

Twitter:

https://twitter.com/OnyxGoldCorp

1. Fenn-Gib Gold Project and Tower Gold Project mineral resources compiled from public sources

and are provided for general information purposes. Readers are cautioned that the Company has no

interest in or right to acquire any interest in adjacent properties and they are not indicative of mineral

deposits on the Company's properties or any potential exploration thereof.

2. The QP has been unable to verify any of the historical technical information in this release and this

information is not necessarily indicative of additional mineralization occurring on the Property.

Interested parties are referred to Brunswick Resources Inc. Annual Management's Discussion and

Analysis Report for the year ended December 31, 2015 as well as the Ontario Ministry of Mines

Assessment File Database and the Mineral Inventory Database.

Forward looking information: This news release includes certain "forward-looking information" within

the meaning of Canadian securities legislation and "forward-looking statements" within the meaning

of the United States Private Securities Litigation Reform Act of 1995 (collectively "forward looking

statements").

Forward-looking statements include predictions, projections, and forecasts and are often, but not

always, identified by the use of words such as "seek", "anticipate", "believe", "plan", "estimate",

"forecast", "expect", "potential", "project", "target", "schedule", "budget" and "intend" and statements

that an event or result "may", "will", "should", "could" or "might" occur or be achieved and other similar

expressions and includes the negatives thereof. All statements other than statements of historical fact

included in this release, including, without limitation, statements regarding the Company's planned

exploration programs and drill programs and potential significance of results including the new high-

grade vein structure at the Munro Croesus property described above, are forward-looking statements

that involve various risks and uncertainties. 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 are based on a number of material factors and

assumptions. Important factors that could cause actual results to differ materially from Company's

expectations include actual exploration results, changes in project parameters as plans continue to

be refined, results of future resource estimates, future metal prices, availability of capital, and

financing on acceptable terms, general economic, market or business conditions, uninsured risks,

regulatory changes, defects in title, availability of personnel, materials, and equipment on a timely

basis, accidents or equipment breakdowns, delays in receiving government approvals, unanticipated

environmental impacts on operations and costs to remedy same, and other exploration or other risks

detailed herein and from time to time in the filings made by the Company with securities regulators.

Although the Company has attempted to identify important factors that could cause actual actions,

events, or results to differ from those described in forward-looking statements, there may be other

factors that cause such actions, events, or results to differ materially from those anticipated. There can

be no assurance that forward-looking statements will prove to be accurate, and accordingly readers

are cautioned not to place undue reliance on forward-looking statements.

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

https://www.newsfilecorp.com/release/205957