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Omai Gold Mines Corp

Corporate Updates

Omai Gold Mines Corp News Release July 31, 2024

OMAI GOLD MINES PROVIDES EXPLORATION UPDATE ON

OMAI PROJECT IN GUYANA

Toronto, Ontario – (July 31, 2024) – Omai Gold Mines Corp. (TSXV:OMG) (OTCQB:OMGGF) ("Omai"

or the "Company") is pleased to announce that the drilling has commenced at its 100%-owned Omai gold

property in Guyana. With the Preliminary Economic Assessment announced April 4th, followed by a $13

million brokered private placement that closed June 20th, the Company is well positioned to further

advance the project.

Elaine Ellingham, CEO commented: “ With the completion of our recent financing, Omai has $13 million

in the treasury and we are well positioned for our 2024 and 2025 exploration and development programs.

Drilling commenced July 2 nd, twelve days after the financing closed , with a n initial 10,000 m drill ing

program underway. Our recent Preliminary Economic Assessment for production of 1.83 million ounces

of gold from an open pit mine, averaging 1.51 g/t Au giving a net present value (5% discount) of US$566

million, is a great milestone for Omai. However, we believe that the Omai property, even with the current

Mineral Resource Estimate could support a much larger mine plan with a longer mine life and more robust

economics. Our priorities for 2024- 2025 are clear -- to work towards: i) Expanding the overall property

Mine Plan , ii) Enhancing the economics beyond this baseline PEA, and iii) Advancing permitting,

engineering and baseline studies. Steps are underway to move forward on each of these objectives.”

The recent PEA is based on open pit production of 1.83 million ounces from only the Wenot deposit, one

of the two orogenic gold deposits located on the Omai Property (Figure 1). The PEA incorporates only

45% of the current Omai Property Mineral Resource Estimate, and 78% of the Wenot MRE. Wenot alone

already hosts an additional Inferred MRE of over 400,000 ounces averaging over 2.0 g/t. Much of this is

located west of the past producing pit and, with additional drilling, offers near surface potential for future

inclusion in the Mine Plan. Some of the non-included MRE is at depth and additional drilling could support

a deeper economic pit or potentially later underground mining as the deepest intersection to date was an

impressive 5.18 g/t Au over 20.2 m (including 12.7 g/t Au over 7.9 m) at a vertical depth of ~460m .

Management believes that with the 2024-2025 planned drilling, at least some of the additional Wenot

MRE could be integrated into a future expanded Mine Plan, and the Wenot deposit could expand within,

along strike and below.

The Wenot PEA “superpit” is very large, already extending along a 2.4 km strike length. Drilling to date,

as well as historical mining records , indicate that the Wenot shear-hosted gold mineralized zones are

quite continuous. Certain areas within the PEA pit have relatively wide-spaced drilling and management

believes that with additional drilling of these gaps , that the Wenot resource could expand and, very

importantly some of the waste within the current PEA pit could prove to be mineralized material, potentially

having the effect of decreasing the strip ratio and increasing the NPV of a future economic model. As

such, focused drilling of selected gaps along the Wenot deposit is considered a high priority, together with

drilling along the under-explored East Wenot extension area.

Omai Gold Mines Corp News Release July 31, 2024

Drilling is progressing quickly. Three drill holes have been completed in East Wenot, two of which (24ODD-

072 and - 073) tested a southern geophysics anomaly resulting from an Induced Polarization survey

completed late in 2023 (Figure 3). A third hole (24ODD-074) lies approximately 250 metres east of the

Wenot pit. Several very shallow exploration holes were completed by Placer Dome i n this area in the

early 1990’s and intersected multiple gold zones including 3.60 g/t Au over 27m, 3.66 g/t Au over 7.9, and

2.56 gt Au over 9.0m. Omai drilled a hole in 2022 approximately 200m to the east and intersected visible

gold assaying 1.84 g/t Au over 9.2 m, and confirmed the location of the central contact shear hosting the

quartz felspar porphyry dike in this area.

Two holes have been completed (24ODD-075 and -076), drilling from the south side of the Wenot deposit

(Figure 2). Known local overburden including some sand horizons created a reluctance to drill from the

south following a few failed holes in early 2021. These two new holes were easily and quickly completed

which provides the green light for additional drilling to test the full potential of the sedimentary rock

sequence that lies to the south of the central Wenot contact. Several “gaps” in the Wenot MRE are related

to the lack of testing of areas that could only be accessed from the south. The potential for signficant gold

mineralization on the southern side was fully realized in 2023 with hole 23ODD-063 that encountered

4.07 g/t Au over 31.1m and hole 23ODD -071 that encountered 2.28 g/t Au over 70.0m, both long holes

drilled from the north. Some samples have been shipped to Actlabs in nearby Georgetown, with results

pending.

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 announced a Preliminary Economic Assessment (“PEA”) on its Wenot deposit at Omai on

April 4, 2024, supporting 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$1950/oz gold price 1. An updated NI 43- 101 Mineral

Resource Estimate (“MRE”) announced February 8, 2024 includes 2.0 million ounces of gold (Indicated)

and 2.3 million ounces (Inferred) 1. 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 r oad access

and a wealth of historical data that provides knowledge of the geology and gold mineralization on the

Property, as well as metallurgy, historical process recoveries and many other relevant mining parameters.

1 The NI43-101 Technical Report dated May 21, 2024, titled “UPDATED MINERAL RESOURCE ESTIMATE AND

PRELIMINARY ECONOMIC ASSESSMENT OF THE OMAI GOLD PROPERTY , POTARO MINING DISTRICT NO.

2, GUYANA”, prepared under the supervision of Eugene Puritch, P .Eng., FEC, CET, President of P&E Mining

Consultants Inc., who is a Qualified Person (QP) and is independent of Omai Gold for the purposes of NI 43-101.

The report is available on SEDAR+ and on the Company’s website at

https://omaigoldmines.com/site/assets/files/5486/omg_wenot_pea_final_may_21_2024.pdf.

Elaine Ellingham P.Geo. is a Qualified Person (QP) under NI 43-101 "Standards of Disclosure for Mineral

Projects" and has reviewed the technical information contained in this news release. Ms. Ellingham is not

considered to be independent for the purposes of NI 43-101.

Omai Gold Mines Corp News Release July 31, 2024

Upcoming Events

Precious Metals Summit – Beaver Creek (Colorado)

September 10-13, 2024

Precious Metals Summit – Zurich

November 11-12, 2024

For further information, please contact:

Elaine Ellingham, P.Geo.

President & CEO

[email protected]

+1.416.473.5351

Cautionary Note Regarding Forward-Looking Information

This press release contains forward-looking statements or information (collectively, “FLI”) within the meaning of

applicable Canadian securities legislation.

Generally, FLI can be identified by the use of statements that include words such as “seeks”, “believes”, “anticipates”,

“plans”, “continues”, “budget”, “scheduled”, “estimates”, “expects”, “forecasts”, “intends”, “projects”, “predicts”,

“proposes”, "potential", “targets” and variations of such words and phrases, or b y statements that certain actions,

events or results “may”, “will” “could”, “would”, “should” or “might”, “be taken”, “occur” or “be achieved.” FLI herein

includes, anticipated regulatory approvals in connection with the Offering, stated use of proceeds of the Offering,

statements regarding the results of the Omai PEA, including the production, operating cost, capital cost and cash

cost estimates, the projected valuation metrics and rates of return, and the cash flow projections, as well as mineral

resource estimates for the Omai Gold Mine.

All statements, other than statements of historical fact, included herein are FLI that involve various risks, assumptions,

estimates and uncertainties. For additional information with respect to these and risks, assumptions, and other factors

that may affect the FLI made in this press release concerning the Company, please refer to the sections entitled

“Cautionary Note Regarding Forward-Looking Information” and "Risk Factors" in the most recent management

discussion and analysis of the Company, which is av ailable electronically on SEDAR+ ( www.sedarplus.ca) under

the Company's issuer profile. FLI is not, and cannot be, a guarantee of future results or events. Investors are

cautioned not to put undue reliance on forward-looking statements.

The FLI contained in this press release are made as of the date hereof or as at the date of the applicable document

only and, accordingly, are subject to change after such dates. The Company disclaims any intent or obligation to update

publicly or otherwise revise any FLI or the foregoing list of risks, assumptions or other factors, whether as a result of

new information, future events or otherwise, except in accordance with applicable securities laws.

Neither the TSX-V nor its Regulation Services Provider (as that term is defined in the policies of the TSX-

V) accepts responsibility for the adequacy or accuracy of this release.

Omai Gold Mines Corp News Release July 31, 2024

Figure 1. Plan Map Showing Wenot Gold Mineralized Zones and Location of Gilt Creek Deposit

Figure 2. Plan Map of Wenot Deposit Showing Recently Completed Holes (24ODD-072-076),

Current Hole (24ODD-077) and Planned Holes