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Omai Gold Appoints Petra Decher as Chief Financial Officer and Corporate Secretary

Management Changes

Omai Gold Appoints Petra Decher as Chief

Financial Officer and Corporate Secretary

Toronto, Ontario--(Newsfile Corp. - May 1, 2025) -

Omai Gold Mines Corp.

(TSXV: OMG) (OTCQB:

OMGGF)

("

Omai

Gold

" or the "

Company

") is pleased to announce the appointment of Ms. Petra

Decher, CA, CPA as its Chief Financial Officer and Corporate Secretary, effective immediately.

Ms. Decher is a seasoned finance executive with over twenty-five years' experience in the mining

industry. She has a deep understanding of financial reporting, corporate governance, M&A, capital

markets, compliance and ESG. Ms. Decher has held the CFO position for several publicly-listed

exploration/development and producing mining companies and has served as an independent board

member, chairing Audit Committees, being the Lead Independent Director, and member of

compensation committees. She most recently was the CFO of Marimaca Copper Corp. Prior to

Marimaca, Ms. Decher was the Vice President, Finance and Assistant Secretary for Franco-Nevada

Corporation. Ms. Decher is a Chartered Professional Accountant.

Elaine Ellingham, CEO, commented.

"We are very pleased to welcome Petra to Omai Gold's team at a

very exciting time. We will benefit from her wealth of financial management experience and her deep

understanding of the mining industry. We would like to thank Donna McLean for stepping in to serve

as interim CFO."

The Company has granted to Ms. Decher incentive stock options to purchase 900,000 common shares

of the Company at an exercise price of $0.44/share pursuant to the Company's stock option plan. The

options have a five-year term.

ABOUT OMAI GOLD

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 announced a Preliminary Economic Assessment ("PEA")

1

on its Wenot Deposit

at Omai in April 2024, showing an open pit operation to produce 1.84 million ounces of gold over a 13-

year period, with an NPV

5%

of US$556 million at a US$1,950/oz gold price. This baseline PEA

incorporates only 45% of the property's MRE and management believes that with additional work the

mine plan can be significantly expanded, the economics enhanced, and the open pit resources further

increased. An updated NI 43-101 Mineral Resource Estimate ("MRE")

1

of 2.0 million ounces of gold

(Indicated) and 2.3 million ounces (Inferred) reflects a notable increase as a result of 2023's successful

drilling. Once South America's largest producing gold mine, Omai produced over 3.7 million ounces of

gold between 1993 and 2005

2

. 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 road access and a wealth of

historical data that provides knowledge of the geology and gold mineralization on the Property, as well

as metallurgy, historical processing recoveries and many other relevant mining parameters.

1

NI43-101 Technical Report dated May 21, 2024 "UPDATED MINERAL RESOURCE ESTIMATE AND PRELIMINARY ECONOMIC ASSESSMENT

OF THE OMAI GOLD PROPERTY, POTARO MINING DISTRICT NO.2, GUYANA" was prepared by Eugene Puritch, P.Eng., FEC, CET, President

of P&E Mining Consultants Inc. is available on SEDAR+ and on the Company's website. It includes a Wenot resource of 834,000 indicated ounces

of gold averaging 1.48 g/t Au and 1,614,000 inferred ounces of gold averaging 1.99 g/t Au, and the adjacent Gilt Creek resource of 1,151,000

indicated ounces of gold averaging 3.22 g/t Au and 665,000 inferred ounces of gold averaging 3.35 g/t Au.

2

Past production at the Omai Mine (1993-2005) is summarized in several Cambior Inc. documents available on SEDARplus.ca, including March

31, 2006 AIF and news release August 3, 2006.

For further information, please see our website

www.omaigoldmines.com

or contact:

Elaine Ellingham, P.Geo.

President & CEO

[email protected]

+1.416.473.5351

David Stewart, P.Eng.

VP Corporate Development & Investor Relations

[email protected]

+1.647.294.8361

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 exploration, trenching and drill programs, 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 the Omai Gold 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 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.

Further, the Preliminary Economic Assessments and related data discussed 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 recovery will be realized. Forward-looking statements are subject to known

and unknown risks, uncertainties and other factors that may cause the actual results, level of activity,

performance or achievements of Omai Gold Mines Corp. to be materially different from those

expressed or implied by such forward-looking statements, including but not limited to: risks related to

international operations; actual results of current exploration activities; conclusions of economic

evaluations; changes in project parameters as plans continue to be refined; future prices of gold,

copper and other minerals and metals; general market conditions; possible variations in ore reserves,

grade or recovery rates; failure of plant, equipment or processes to operate as anticipated; accidents,

labour disputes and other risks of the mining industry; uncertainty of access to additional capital;

delays in obtaining governmental approvals or in the completion of development or construction

activities.

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

https://www.newsfilecorp.com/release/250397