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Omai Gold Drills 5.21 g/t Au over 19.3m at Wenot, Including 11.44 g/t Au over 4.6m and 11.75 g/t Au over 3.6m

Drill Results

Omai Gold Drills 5.21 g/t Au over 19.3m at

Wenot, Including 11.44 g/t Au over 4.6m and

11.75 g/t Au over 3.6m

Toronto, Ontario--(Newsfile Corp. - March 5, 2025) -

Omai Gold Mines Corp.

(TSXV: OMG) (OTCQB:

OMGGF)

("

Omai Gold

" or the "

Company

") is pleased to announce assay results from the balance of

drilling completed as part of the 2024 program. A total of 26 diamond drill holes totalling 13,716m were

completed in 2024, mostly focused on expanding the large Wenot deposit at the Company's 100%-

owned Omai Gold Project in Guyana. Assays are reported for 3 holes drilled in 2024 and results are

pending for an additional 8 holes at Wenot drilled to date in 2025 (Figure 1).

Highlights include:

Hole

24ODD-097

5.21 g/t Au over 19.3m, including 11.44 g/t Au over 4.6m and 11.75 g/t Au over 3.6m

Hole

24ODD-096

0.98 g/t Au over 26.2m, including 1.71 g/t Au over 12.7m

1.31 g/t Au over 22.0m

Hole

24ODD-093

1.89 g/t Au over 6.7m

2.51 g/t Au over 4.9m

Results from the 2024 drill program at Wenot achieved the objectives as set: 1) to identify further

mineralization in some of the wide undrilled areas within the 2.5 km long strike of the Wenot deposit,

particularly within the under-explored southern sedimentary rock sequence, 2) to extend the known

mineralization in the multiple subparallel gold zones down to the 400m to 450m level, which management

believes is a reasonable depth for a potential large-scale open pit operation, and 3) to increase the

shallow drilling at West Wenot, an area with known broad mineralized zones within the southern

sedimentary rocks with potential as a starter pit.

Elaine Ellingham, President & CEO, commented:

"The balance of results from the last three drill holes

from 2024 mark a strong finish to last year's drill program. In particular, hole 97 intersected high-grade

gold mineralization of 5.21 g/t Au over 19.3m - showing increased grade over nearby hole 90 that was

drilled from the north side.

Our 2025 drill program commenced in January, with an initial planned 10,000m but we will potentially

expand this with further success. To date, an additional 8 holes have already been drilled for a total of

4,880m. Two of these holes were drilled at the Camp Zone approximately 1km west of Wenot along

the shear corridor, in an area with no historical open pit mining but a few previous holes with

encouraging mineralization

.

Drilling will pave the way to an updated Mineral Resource Estimate

expected in Q2 2025, and an updated PEA planned for Q3 2025."

Hole 24ODD-097

(Figure 2) was drilled from the south side at West Wenot along a similar Easting as

hole 24ODD-090, which was drilled from the north side. Hole 90, previously reported, intersected 1.19

g/t Au over 10m in the volcanics, 1.01 g/t Au over 28.5m within the central quartz feldspar porphyry

("QFP") at the main contact, and up to 1.07 g/t Au over 11.0m within the sedimentary sequence to the

south (Figure 2). Hole 97, along the same section line intersected a number of intervals of gold

mineralization within the sediments to the south, including 1.03 g/t Au over 4.5m, 0.98 g/t Au over 2.2m,

and 2.48 g/t Au over 1.8m.

At the central contact QFP, the hole intersected 5.21 g/t Au over 19.3m, that

included 11.44 over 4.6m and also 11.75 g/t Au over 3.6m. This was an impressive result, as the grade

was much higher than the corresponding intercept from hole 90 of 1.01 g/t Au over 28.5m. Hole 21ODD-

022 also drilled on the same section, intersected 4.63 g/t over 20.0m within the same contact QPF but

75m shallower at a vertical depth of approximately 180m.

Hole 24ODD-096

(Figure 3) was drilled from the north at central Wenot approximately 25m west of hole

24ODD-083 and was targeting approximately 100m shallower than the mineralization encountered in

that hole (Figure 3). Hole 83 was one of four holes drilled in 2024 to test beneath the central part of the

Wenot deposit, and intersected four significant mineralized zones, including 10.93 g/t Au over 7.5 m,

1.93 g/t Au over 11.5 m, 1.17 g/t Au over 15.0m and 2.33 g/t Au over 17.7 m within felsic and diorite

dikes in the volcanics, and 0.64 g/t Au over 26.5 m within the central contact QFP.

For comparison, hole

96 intersected 1.73 g/t Au over 6.3m, 1.31 g/t Au over 22.0m, 0.93 g/t Au over 9.0m and 1.59 g/t Au over

6.0m, all in the dike corridor and all approximately 100m shallower than the corresponding mineralized

zones from hole 83. Hole 96 went on to intersect 0.95 g/t Au over 5.3m near the main contact shear but

within the volcanics, and 0.98 g/t Au over 26.2m (including 1.71 g/t Au over 12.7m and also 3.23 g/t Au

over 4.7m)

at the contact QFP at a vertical depth of just over 400m and below both the 2024 PEA pit

shell and the 2024 MRE pit shell.

Hole 24ODD-093

(Figure 4) was drilled from the north side at West Wenot, approximately 50m east

from hole 24ODD-088 and between that hole and 24ODD-090. Hole 93 was drilled to target the

shallower up-dip extensions of previous gold mineralization intersected in the dike corridor, the central

contact QFP, and the southern sedimentary sequence by holes 22ODD-052, 23ODD-067, and 24ODD-

088 (Figure 4). Hole 93 intersected 1.82 g/t Au over 7.5m in saprolite near the top of the hole. It

continued on, intersecting 1.89 g/t Au over 6.7m and 0.53 g/t Au over 10.5m within the dike corridor

between 80m and 100m vertical depths. At the main contact, this hole also intersected 0.87 g/t Au over

18.5m. In the sedimentary sequence to the south, various intervals of gold mineralization were

intersected including 2.60 g/t Au over 3.0m, 2.51 g/t Au over 4.9m, 1.48 g/t Au over 4.3m, and 0.35 g/t

Au over 19.5m.

Figure 1. Wenot Plan Map Showing Drill Hole Locations

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

https://images.newsfilecorp.com/files/8712/243382_97d7820f744afa51_001full.jpg

Figure 2. Cross-Section for DDH 24ODD-097

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

https://images.newsfilecorp.com/files/8712/243382_omaifig2.jpg

Figure 3. Cross-Section for DDH 24ODD-096

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

https://images.newsfilecorp.com/files/8712/243382_omaifig3.jpg

Figure 4. Cross-Section for DDH 24ODD-093

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

https://images.newsfilecorp.com/files/8712/243382_omaifig4.jpg

Table 1. Recent Drill Results*

DDH

From

To

Interval

(m)

Grade

(g/t Au)

24ODD-093

32.5

40.0

7.5

1.82

56.9

58.3

1.4

0.56

101.5

103.0

1.5

1.10

130.1

136.8

6.7

1.89

149.6

151.0

1.4

1.55

162.5

173.0

10.5

0.53

194.0

195.5

1.5

0.78

227.0

228.5

1.5

0.46

238.0

256.5

18.5

0.87

272.0

275.0

3.0

2.60

284.0

287.0

3.0

1.84

318.9

323.8

4.9

2.51

334.2

338.5

4.3

1.48

348.5

350.0

1.5

0.81

359.0

378.5

19.5

0.35

395.0

403.5

8.5

0.38

453.5

454.7

1.2

3.40

24ODD-096

141.5

144.5

3.0

1.30

193.5

195.0

1.5

0.45

205.5

212.0

6.5

0.41

218.0

219.5

1.5

1.57

233.5

236.5

3.0

0.59

274.0

280.3

6.3

1.73

305.0

327.0

22.0

1.31

342.5

348.5

6.0

0.48

354.5

363.5

9.0

0.93

426.5

432.5

6.0

1.59

484.5

486.0

1.5

0.66

492.0

493.0

1.0

0.60

527.5

532.8

5.3

0.95

556.5

558.0

1.5

0.45

568.5

594.7

26.2

0.98

including

582.0

594.7

12.7

1.71

including

590.0

594.7

4.7

3.23

630.5

632.0

1.5

0.59

24ODD-097

172.5

177.0

4.5

1.03

292.5

294.0

1.5

0.50

303.8

306.0

2.2

0.98

313.0

314.5

1.5

0.37

323.5

325.3

1.8

2.48

350.6

352.0

1.4

0.61

382.4

401.7

19.3

5.21

including

382.4

387.0

4.6

11.44

and including

397.4

401.0

3.6

11.75

467.0

474.9

7.9

0.81

480.5

482.0

1.5

0.44

496.6

497.7

1.1

0.70

*True widths vary as mineralization at Wenot is generally hosted within stockwork vein systems with alteration halos, with an estimated true width

range of 70-90%. Cut-off grade 0.30 g/t Au with maximum 5.0m internal dilution is applied. Grades are uncapped

.

Table 2. Drill Hole Coordinates

Hole ID

Azimuth

(degrees)

Inclination

(degrees)

Easting

Northing

Depth

(m)

Status

24ODD-093

177

-50

304647

601829

497

Reporting

24ODD-096

176

-56

305465

601845

677

Reporting

24ODD-097

357

-48

304735

601397

590

Reporting

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.

Quality Control

Omai maintains an internal QA/QC program to ensure sampling and analysis of all exploration work is

conducted in accordance with best practices. Certified reference materials, blanks and duplicates are

entered at regular intervals. Samples are sealed in plastic bags.

Drilling samples were shipped to ActLabs, a certified laboratory in Georgetown Guyana, respecting the

best chain of custody practices. At the laboratory, samples are dried, crushed up to 80% passing 2 mm,

riffle split (250 g), and pulverized to 95% passing 105 μm, including cleaner sand. Fifty grams of

pulverized material is then fire assayed by atomic absorption spectrophotometry (AA). Initial assays with

results above 3.0 ppm gold are re-assayed using a gravimetric finish. For samples with visible gold two

separate 500g or 1000g pulverized samples are prepared, with 50 grams of each fire assayed by

atomic absorption spectrophotometry, with assays above 3.0 ppm gold being re-assayed using a

gravimetric finish. Certified reference materials and blanks meet with QA/QC specifications.

Qualified Person

Elaine Ellingham is a Qualified Person (QP) under National Instrument 43-101 "Standards of Disclosure

for Mineral Projects" and has approved the technical information contained in this news release. Ms.

Ellingham is not considered to be independent for the purposes of National Instrument 43-101.

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.

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/243382