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

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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 NPV5% 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 20052. 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.