Omai Gold presents at Precious Metals & Critical Minerals conference July 23

TORONTO, July 21, 2026 (GLOBE NEWSWIRE) -- Omai Gold Mines Corp. (TSXV: OMG) (OTCQB: OMGGF) (“ Omai Gold ” or the “ Company ”) is pleased to announce that Elaine Ellingham, President and CEO, will present live at the Precious Metals & Critical Minerals Virtual Investor Conference hosted by VirtualInvestorConferences.com, on July 23 rd , 2026.

Omai Gold Mines invites individual and institutional investors, as well as advisors and analysts, to attend online at VirtualInvestorConferences.com

Date : Thursday, July 23 rd , 2026

Time: 10:00am – 10:30am EDT

REGISTER HERE

Available for 1x1 meetings: July 22 & 23. Schedule 1x1 meetings here .

This will be a live, interactive online event where investors are invited to ask the company questions in real-time. If attendees are not able to join the event live on the day of the conference, an archived webcast will also be made available after the event.

It is recommended that online investors pre-register and run the online system check to expedite participation and receive event updates.

Learn more about the event at www.virtualinvestorconferences.com .

Recent Omai Gold Highlights

Updated Mineral Resource Estimate (MRE) April 2026 at its large Omai project in Guyana

Pending PEA – with larger mine plan to incorporate Gilt underground and expanded Wenot superpit

50,000m drill program underway to fill undrilled gaps within Wenot constraining pit to convert Inferred resources to Indicated, explore limits of Wenot, and explore nearby targets

Environmental Permitting underway with Terms & Scope submitted to Guyana EPA

Ongoing additional work to support a PFS/FS

About Virtual Investor Conferences®

Virtual Investor Conferences (VIC) is the leading proprietary investor conference series that provides an interactive forum for publicly traded companies to seamlessly present directly to investors.

Providing a real-time investor engagement solution, VIC is specifically designed to offer companies more efficient investor access. Replicating the components of an on-site investor conference, VIC offers companies enhanced capabilities to connect with investors, schedule targeted one-on-one meetings and enhance their presentations with dynamic video content. Accelerating the next level of investor engagement, Virtual Investor Conferences delivers leading investor communications to a global network of retail and institutional investors.

ABOUT OMAI GOLD

Omai Gold Mines Corp. is a Canadian gold exploration and development company focused on rapidly expanding the two orogenic gold deposits at its 100%-owned Omai Gold Project in mining-friendly Guyana, South America. The Company has established the Omai Gold Project as one of the fastest growing and well-endowed gold camps in the prolific Guiana Shield.

In April 2026, the Company announced an updated NI 43-101 Mineral Resource Estimate 1 (MRE) which included expansions to both the Wenot Deposit and Gilt Deposit. Most significantly, the Wenot Indicated MRE increased 49.8% to 1,453,000 ounces (“oz”) of gold with an average grade of 1.59 g/t Au, contained in 28.4 million tonnes (“Mt”) and the Wenot Inferred MRE increased 7.6% to 3,999,000 oz grading 1.35 g/t Au, contained in 92.4 Mt. Similarly, the adjacent Gilt Deposit saw an overall increase in ounces over the previous MRE. Gilt’s Inferred MRE increased 120% to 1,465,000 oz averaging 3.22 g/t Au (in 14.2 Mt), while the Indicated MRE decreased by 9.5% to 1,042,000 oz averaging 3.33 g/t Au (in 9.7 Mt).

Five diamond drills are working on a 50,000m drilling program for 2026: at Wenot the focus is to further test the limits of the deposit, including both east and west, and to commence converting the large Inferred MRE to Indicated. Additional drilling will continue to explore certain known gold occurrences for possible near-surface higher-grade satellite deposits. Following the current updated MRE, an updated PEA is planned for Q3 2026 to include the expanded Wenot open pit deposit and the adjacent Gilt Creek underground deposit. The Omai Gold Mine produced over 3.7 million ounces of gold from 1993 to 2005 2 , ceasing operations when gold was below US$400 per ounce. The Omai site significantly benefits from existing infrastructure, including an on-site airstrip, and is connected by road to the two largest cities in Guyana, Georgetown and Linden.

1 Omai Gold Mines news release titled “ Omai Gold Increases Indicated Mineral Resources to 2.5 Moz Au at 2.04 g/t Au (38.1 Mt) and Inferred to 5.5 Moz Au at 1.59 g/t Au (106.6 Mt) with Expansion of Wenot and Gilt Deposits ” dated April 14, 2026 .

2 Past production at the Omai Mine (1993-2005) is summarized in several Cambior Inc. documents available on www.sedarplus.ca, including March 31, 2006 AIF and news release August 3, 2006.

For further information, please see our website www.omaigoldmines.com .

Contacts:

Omai Gold Mines Corp. Elaine Ellingham, P.Geo. President & CEO elaine@omaigoldmines.com

Virtual Investor Conferences

Greg Young

VP Corporate Services

OTC Markets Group

(212) 652-5958

greg@otcmarkets.com

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.sedarplus.ca . The Inferred Mineral Resource in this estimate has a lower level of confidence than that applied to an Indicated Mineral Resource and must not be converted to a Mineral Reserve. It is reasonably expected that the majority of the Inferred Mineral Resource could be upgraded to an Indicated Mineral Resource with continued exploration. 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 ").