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

OMG.V ·

Omai Gold Mines Commences 2023 Drilling Program at the Omai Property in Guyana

Exploration Programs

Omai Gold Mines Commences 2023 Drilling

Program at the Omai Property in Guyana

Toronto, Ontario--(Newsfile Corp. - February 10, 2023) -

Omai Gold Mines Corp.

(TSXV: OMG)

(OTCQB: OMGGF) ("Omai Gold" or the "Company") is pleased to announce that it has commenced the

2023 drill program at its 100%-owned Omai Gold Property in Guyana. A 5,000-metre drill program will

focus on targets along the 7-kilometre extension of the prolific Wenot Shear Corridor and those

delineated by geophysics, geochemistry and historic workings. Additional drilling is designed to

optimize further expansion of the Wenot deposit, along strike and at depth. The 2023 exploration

program is guided by the results of the 2022 mapping, geochemical survey and trenching programs,

combined with new results from the application of magnetic vector inversions of the airborne geophysics

survey data.

Elaine Ellingham, CEO of Omai Gold, commented

: "2022 was a transformational year for Omai

Gold.

After drilling an additional 5,900m, we announced an updated NI43-101 resource in October that

more than doubled our initial resource announced less than a year earlier.

With a base of 1.9 million

ounces (Indicated Mineral Resources) and a further 1.8 million ounces (Inferred Mineral Resources) we

are starting the 2023 program by stepping out to test select exploration targets. The Omai property

represents a major gold camp, with past production of 3.8 million ounces plus substantial new gold

resources and the potential for additional new deposits along a target structural zone that extends for 7

kilometres across the property."

Figure 1

.

New Wenot and Gilt Creek Deposits - Mineral Resource Update announced Oct 2022

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

https://images.newsfilecorp.com/files/8712/154366_17cdf3f4b404e950_001full.jpg

Exploration at the Omai project in 2022 included trenching, mapping, and geochemical programs which

were integrated with the historic data to refine and prioritize the 2023 exploration targets. Many gold

deposits have very subtle or, in many instances, no geophysical signatures, adding to the challenge of

gold exploration. Exploration at the Omai project benefits from prominent and distinctive geophysical

signatures over the main deposits. Most of the Wenot shear-hosted gold deposit has a magnetite

alteration overprint that appears to increase with depth and is expressed as a high magnetic response in

the geophysics data. At Gilt Creek, the gold-bearing stockwork quartz-veined quartz diorite intrusion is

associated with a low magnetic signature. In late 2022, the Company engaged a magnetic inversion-

modelling expert geophysicist to work with the airborne data, to assist in better refinement of new

Wenot-type and Gilt Creek-type targets. This work has significantly contributed to the recent target

development for the large-target Broccoli Hill, Boneyard and Pyramid areas which are part of the current

H1 2023 drill program.

Figure 2. Exploration Targets highlighted by 3-D Magnetic Vector Inversion Analysis

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

https://images.newsfilecorp.com/files/8712/154366_17cdf3f4b404e950_002full.jpg

Broccoli Hill is immediately east of the past producing Gilt Creek deposit and north of the Wenot

deposit.

Broccoli Hill has seen limited shallow drilling and the six short holes completed in late 2021 on

the north side of the hill intersected gold in four of the six holes drilled. These scout holes were drilled to

gain information on the underlying lithologies that are covered by a thick weathered saprolite layer.

Broccoli Hill has attracted artisanal miners for many years and soil geochemical results show broad gold

anomalies. The new 3D geophysical modelling indicates a large magnetic low that appears to be

connected to the magnetic low associated with Omai's Gilt Creek deposit and the overlying Fennell

mine, which produced 2.4 million ounces @ 1.5 g/t Au. Modelling suggests this magnetic low occurs on

the southern side of Broccoli Hill, although trenching, mapping, sampling and subsequent drilling has

confirmed a series of gold-bearing veinlets on the northern side of the hill, perhaps in a different

geological setting. Due to the extent of the Broccoli Hill anomalies, several holes will be needed to

adequately test this target.

The Boneyard target is a well defined magnetic low feature with a 600-700 m strike length and lying 200

to 500 metres north of the Wenot shear corridor. The Wenot Shear Corridor was the locus of multi-

phase, significant crustal deformation centered on a regional scale sediment-volcanic contact. Any

nearby intrusive bodies would likely have been subjected to brittle or ductile fracturing and shearing

creating possible conduits for subsequent gold bearing fluids.

The Boneyard shows evidence of

extensive historical artisanal activity, limited to surficial saprolite and alluvium.

Across the Guiana Shield,

areas of artisanal mining frequently correlate to areas with gold mineralization in the underlying bedrock.

An initial two to three holes are planned but additional drilling is likely required to adequately test this

anomaly.

The Pyramid target, approximately two kilometres east of the Wenot pit, corresponds to a one-kilometre

long, high magnetic anomaly. This anomaly is elongated along and lies directly over the known

continuation of the Wenot shear. It is the closest geophysical analogue on the property to the central

portion of the Wenot Deposit. Three to four initial holes are planned to test this Pyramid target. Although

the central part of the Wenot Deposit corresponds to a very strong magnetic anomaly, significant gold

mineralization at the west end of Wenot does not exhibit a high magnetic signature, indicating that gold

targets across the property wouldn't necessarily have distinctive magnetic signatures.

About Omai Gold Mines Corp

.

Omai Gold Mines Corp. holds a 100% interest in the Omai Prospecting License that includes the past

producing Omai gold mine in Guyana, and a 100% interest in the adjoining Eastern Flats Mining

Permits. The Company recently announced an updated Mineral Resource Estimate that includes the

Wenot shear-hosted gold deposit and the adjacent Gilt Creek intrusion-hosted deposit. The NI 43-101

Mineral Resource Estimate includes: 1,907,600 ounces of gold (Indicated) at an average grade of 2.07

g/t gold and 1,777,600 ounces of gold (Inferred) at an average grade of 2.10 g/t gold. Once South

America's largest producing gold mine, Omai produced over 3.7 million ounces of gold between 1993

and 2005. Mining ceased at a time when the average gold price was less than US$400 per ounce. As a

brownfields project, Omai benefits from good access, and a wealth of historical data that provides

knowledge of the geology, nature of the gold mineralization on the property, as well as metallurgy and

historical recoveries. The Company's priority for 2023 is to drill the key exploration targets that hold

potential for significant new discoveries while continuing to expand the Wenot deposit.

For further information, please see our website

www.omaigoldmines.com

or contact:

Elaine Ellingham, P.Geo.

President & CEO

[email protected]

+1-416-473-5351

Iryna Zheliasko

Investor Relations

[email protected]

+ 1-647-249-9298

Neither the 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 Note Regarding Forward-Looking Statements

This news release includes certain "forward-looking statements" under applicable Canadian securities

legislation. Forward-looking statements include, but are not limited to, statements with respect to the

timing of completion of the drill program, and the potential for the Omai Gold Project to allow Omai to

build significant gold Mineral Resources at attractive grades, and forward-looking statements are

necessarily based upon a number of estimates and assumptions that, while considered reasonable,

are subject to known and unknown risks, uncertainties and other factors which may cause the actual

results and future events to differ materially from those expressed or implied by such forward-looking

statements. Such factors include, but are not limited to general business, economic, competitive,

political and social uncertainties; delay or failure to receive regulatory approvals; the price of gold and

copper; and the results of current exploration. Further, the Mineral Resource data set out in this news

release are estimates, and no assurance can be given that the anticipated tonnages and grades will

be achieved or that the indicated level of process recovery will be realized. There can be no

assurance that forward-looking 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. The Company disclaims any intention or

obligation to update or revise any forward-looking statements, whether as a result of new information,

future events or otherwise, except as required by law.

Cautionary Note Regarding Mineral Resource Estimates

Until mineral deposits are actually mined and processed, Mineral Resources must be considered as

estimates only. Mineral Resource Estimates that are not Mineral Reserves have not demonstrated

economic viability. The estimation of Mineral Resources is inherently uncertain, involves subjective

judgement about many relevant factors and may be materially affected by, among other things,

environmental, permitting, legal, title, taxation, socio-political, marketing, or other relevant risks,

uncertainties, contingencies and other factors described in the Company's public disclosure available

on SEDAR at

www.sedar.com

. The quantity and grade of reported "Inferred" Mineral Resource

Estimates are uncertain in nature and there has been insufficient exploration to define "Inferred"

Mineral Resource Estimates as an "Indicated" or "Measured" Mineral Resource and it is uncertain if

further exploration will result in upgrading "Inferred" Mineral Resource Estimates to an "Indicated" or

"Measured" Mineral Resource category. The accuracy of any Mineral Resource Estimates is a

function of the quantity and quality of available data, and of the assumptions made and judgments

used in engineering and geological interpretation, which may prove to be unreliable and depend, to a

certain extent, upon the analysis of drilling results and statistical inferences that may ultimately prove

to be inaccurate. Mineral Resource Estimates may have to be re-estimated based on, among other

things: (i) fluctuations in mineral prices; (ii) results of drilling, and development; (iii) results of future

test mining and other testing; (iv) metallurgical testing and other studies; (v) results of geological and

structural modeling including block model design; (vi) proposed mining operations, including dilution;

(vii) the evaluation of future mine plans subsequent to the date of any estimates; and (viii) the

possible failure to receive required permits, licenses and other approvals. It cannot be assumed that

all or any part of a "inferred" or "indicated" Mineral Resource Estimate will ever be upgraded to a

higher category.

The Mineral Resource Estimates disclosed in this news release were reported using

Canadian Institute of Mining, Metallurgy and Petroleum Definition Standards for Mineral Resources

and Mineral Reserves (the "

CIM Standards

") in accordance with National Instrument 43-101-

Standards of Disclosure for Mineral Projects of the Canadian Securities Administrators ("

NI 43-101

").

Cautionary Statements to U.S. Readers

This news release uses the terms "Mineral Resource", "Indicated Mineral Resource" and "Inferred

Mineral Resource" as defined in the CIM Standards in accordance with NI 43-101. While these terms

are recognized and required by the Canadian Securities Administrators in accordance with Canadian

securities laws, they may not be recognized by the United States Securities and Exchange

Commission.

The "Mineral Resource" Estimates and related information in this news release may not

be comparable to similar information made public by U.S. companies subject to the reporting and

disclosure requirements under the United States federal securities laws and the rules and regulations

thereunder.

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

https://www.newsfilecorp.com/release/154366