Omai Gold Drills 3.08 g/t Au over 25.8m, 6.84 g/t Au over 9.5m, and 1.52 g/t Au over 37.5m at Wenot Deposit; Provides Update on Deep Hole Beneath Wenot Deposit
Omai Gold Drills 3.08 g/t Au over 25.8m, 6.84
g/t Au over 9.5m, and 1.52 g/t Au over 37.5m at
Wenot Deposit; Provides Update on Deep Hole
Beneath Wenot Deposit
Toronto, Ontario--(Newsfile Corp. - September 24, 2025) -
Omai Gold Mines Corp.
(TSXV: OMG)
(OTCQB: OMGGF) ("
Omai Gold
" or the "
Company
") is pleased to announce additional assay results
from the ongoing 2025 drill program on its 100% owned Omai Gold Project in Guyana, South America.
Assays are reported for 6 drill holes on the Wenot deposit totaling 3,782m (Table 1). A total of 43 drill
holes have been drilled to date this year, totalling 23,500m. Two drills commenced testing earlier stage
gold targets while the recently released updated Mineral Resource Estimate was being prepared. The
third drill continues on the deep hole 25ODD-122, testing the blue sky potential at depth below the
Wenot deposit. It has reached a downhole depth of 1860m, encountering the targeted Wenot shear
structural corridor at 1598m downhole, at a vertical depth approximately 1100 m below surface and 605
m below the deepest known parts of the Wenot deposit.
A fourth rig commenced drilling last week on the
eastern end of Wenot.
Highlights* from the recent Wenot holes include:
Hole 25ODD-127
3.08 g/t Au over 25.8m
Including 17.06 g/t Au over 3.1m
1.52 g/t Au over 37.5m
7.33 g/t Au over 1.5m
Hole 25ODD-125
6.84 g/t Au over 9.5m
Including 27.51g/t Au over 1.2m
9.80 g/t Au over 1.5m
Hole 25ODD-126
1.31 g/t Au over 39.5m
2.08 g/t Au over 18.0m
Including 9.68 g/t Au over 1.5m
5.39 g/t Au over 3.4m
1.33 g/t Au over 8.9m
5.04 g/t Au over 3.0m
Hole 25ODD-117
10.16 g/t Au over 2.6m
1.98 g/t Au over 7.5m
4.53 g/t Au over 2.4m
Elaine Ellingham, CEO and Executive Chairman commented,
"We are very pleased with our recently
announced, significantly increased, updated Mineral Resource Estimate ("MRE"). The NI 43-101
Report will be filed on SEDAR+ in the next couple of weeks.
Today's new drill results from Wenot, were
completed at the end of the resource drilling program, but assays were received after the cutoff date
for the the MRE. These results will contribute to the updated Preliminary Economic Assessment
("PEA"), expected in early Q1/26.
While the MRE was being prepared, we redeployed two of the drills to exploration targets to assess the
potential for new near-surface satellite deposits. One drill focused on the Camp Zone, located
approximately 500m west of the current limits of the Wenot deposit, along the projected strike of the
regional shear structure. Five holes have been completed in this area and assays are pending. A
second drill focused on the Blueberry Hill trend that extends 500m northeast towards the northern
edge of the old Gilt Creek pit. Historical drill results and a number of trenches have intersected high
gold grades.
Although structurally complex, these zones have the potential to add higher grade mill
feed early in the mine life, potentially improving project economics. Six (6) holes have been
completed and once assay results are received we will plan further drilling along this trend.
The long hole 25ODD-122 continues albeit slowly and is now at a downhole depth of 1860m.
This
hole is designed to explore the deep blue sky potential of the Wenot deposit, approximately 600m
below its known limits. The Wenot shear-hosted orogenic gold deposit consists of a series of near-
vertical gold zones within a broad almost 400m wide shear corridor that extends at least 2.5km along
strike.
Given the strike length and width of the Wenot deposit, should this deposit continue to greater
depths and at economic grades, it could significantly increase the potential size and ultimate mine life
of the Omai project.
Hole 122 commenced north of the Gilt Creek deposit and intersected the gold
mineralized Gilt Creek intrusion from 405m to 1079m (674m) downhole then continued to the south.
The hole encountered the Wenot shear corridor at 1598 m downhole and has continued within the
shear for the last 267 meters.
Drilling has progressed very slowly due to the significant length and
shallow dip of the hole.
Regardless, we are very satisfied, particularly since we have identified the wide
shear corridor at depth. Sampling has just commenced on the lower zone.
Samples from the upper
part of hole 122, through the Gilt Creek deposit, are being analysed using Metallic Screening,
recommended due to the presence of coarse gold as is typical of the Gilt Creek deposit. Historical
production from the upper portion of Gilt Creek deposit saw over 30% recovery from the gravity circuit.
Assays are pending for the upper part of the hole and sampling of the lower part awaits completion of
drilling.
A fourth drill arrived at the property and has commenced drilling at the eastern end of Wenot, focused
at testing the limits of the deposit in this area. The two other drills are testing from the south side of
Wenot. The current drilling at Wenot is focused on optimizing the resource for the upcoming PEA by
drilling large gaps within the deposit in order to reduce the strip ratio. These holes and are also
expected to further expand the resource. As these holes continue drilling to the north, they will
increase the drilling density in the
Central quartz-feldspar porphyry zone (
CQFP) and northern Dike
Corridor which is expected to upgrade some of the large Inferred Resource to Indicated. These holes
at Wenot are designed for multiple purposes to further advance the Omai project.
Work is underway on an updated PEA and we will provide an update on progress and milestones in an
upcoming news release."
The reported drill holes are all from the Wenot deposit, each investigating extensions of specific gold-
bearing zones:
Hole 25ODD-114
was drilled from the north side of Wenot, between holes 23ODD-071 and 24ODD-
077. It targeted the down dip extension of the broad mineralization intersected in Hole 071 which
intersected 2.26 g/t Au over 70.0m (including 4.6 g/t Au over 19.2m) (
News Release dated October 23,
2023
). This wide zone is within the CQFP and extends far into the sediments. Hole 114 tested 100-
150m below these intervals. At least 5 intervals of gold mineralization were intersected within the Dike
Corridor, including 2.33 g/t Au over 3m and 6.3 g/t Au over 1.5m. The best intercepts below the broad
zone included 1.35 g/t Au over 9.4m and 0.70 g/t Au over 5.6m, mostly within the CQFP. No significant
mineralization was encountered in the sedimentary sequence.
Hole 25ODD-117
was drilled from the north side of Wenot, approximately 35m west of Hole 24ODD-
096, testing zones intersected in Holes 104 (2.04 g/t Au over 8.9m in the dike corridor) and in Hole 096
(0.98 g/t Au over 26.2m in the CQFP and 1.31 g/t Au over 22m in the dike corridor). Hole 117
intersected nine mineralized zones, including 0.49 g/t Au over 7.5m, and 1.73 g/t Au over 2.1m, within
the diorite dikes in the volcanics, and 1.20 g/t Au over 5.8m, 4.53 g/t Au over 2.4m, within the main Dike
Corridor. Within the CQFP a number of zones were intersected including 1.98 g/t Au over 7.5m, 1.41 g/t
Au over 4.5m, 0.54 g/t Au over 16.5m, and 10.16 g/t Au over 2.6m. Further downhole, 0.98 g/t Au over
4.50 m was intersected within the southern sediments.
Hole 25ODD-125,
drilled at West Wenot, testing deep between holes 22ODD-039 and 24ODD-086,
and targeting the down-dip extension of the mineralization intersected in Hole 086 which included 2.96
g/t Au over 19.4m.
Hole 125 intersected multiple zones including: 9.8 g/t Au over 1.5m within the
volcanics, four notable intercepts within the prolific Dike Corridor, including 6.84 g/t Au over 9.5m, 1.72
g/t Au over 3.4m, 3.80 g/t Au over 1.5m, and 4.7g/t Au over 1.2m, correlating to the same zone assaying
2.96 g/t Au over 19.4m in hole 086. Narrow zones of gold mineralization were also intersected within the
sediments that includes 0.48 g/t Au over 3.8m and 0.40g/t Au over 8.8m and within the Southern QFP,
3.10g/t Au over 1.0m.
Hole 25ODD-126
was drilled from north side of Wenot, approximately 50m east of 25ODD-108. Hole
126 targeted the down-dip extension of zones identified in 21ODD-020 and 24ODD-088, which included
1.28 g/t Au over 25.7m in the CQFP (hole 020) and 1.46 g/t Au over 9m in the sediments (hole 088).
Three gold zones were intersected within the Dike Corridor including 1.37 g/t Au over 2.5m, 1.33 g/t Au
over 8.9m, and 5.39 g/t Au over 3.4m. At the CQFP 2.08 g/t Au over 18.0m was intersected. Significant
mineralization was intersected within the southern sediments, including a 39.5m interval of 1.31 g/t Au.
Further downhole, a diorite dike intruding the sediments assayed 5.04 g/t Au over 3.0m.
Hole 25ODD-127
was a very successful hole, drilled from the south side of Wenot, collared 100m
southeast of 24ODD-076 (see Figure 2). The primary objective was to test the down dip extension of the
mineralized zones previously intersected in 25ODD-099 (3.58 g/t Au over 7m in the dike corridor) and
the corresponding 2.12 g/t Au over 12m intersected in 21ODD-014. As it was drilled from the south, hole
127 first intersected the southern QFP, containing 0.87g/t Au over 3.6m, followed by multiple zones of
mineralization within the sediments including 0.9 g/t Au over 3.0m, 2.09 g/t Au over 3.0m, 0.79 g/t Au
over 5.8m, 6.85 g/t Au over 1.0m, 0.63 g/t Au over 5.8m, and 7.33 g/t Au over 1.5m. A wide mineralized
zone of 1.52 g/t Au over 37.5m was then intersected within the sediments that persisted until the central
contact complex which, as typical, consisted of a protomylonite zone and the Central QFP. Another wide
intercept of 3.08g/t Au over 25.8m was encountered within the main Dike Corridor.
Hole 25ODD-128
was drilled from the north side of Wenot, beside 23ODD-063, but in different
orientation (105
o
azimuth). This hole was to follow up on an impressive new mineralized zone first
identified in 25ODD-116 (2.63 g/t Au over 27.5m) (
News Release dated May 29, 2025),
however due to
surface ground restrictions it was drilled from a less than optimal location. Nonetheless, it intersected the
same zone, but at a very oblique angle, assaying 1.18 g/t Au over 7.5m. This zone is hosted within
diorite dikes intruding the volcanic sequence. Drilling is planned to test for further extensions of this new
northwest zone, located on the edge of the known Wenot deposit.
Little to no drilling has been done
alone strike in this area.
Figure 1. Plan Map of Geology and Drill Hole Locations
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8712/267740_6d431f58443d5b15_001full.jpg
Table 1. Recent Wenot Drill Results*
DDH
From (m)
To (m)
Interval (m)
Grade (g/t Au)
25ODD-114
458.5
460.0
1.5
2.87
490.9
492.0
1.1
1.66
497.5
500.5
3.0
2.33
515.5
517.0
1.5
6.30
575.8
576.8
1.0
1.03
599.0
604.6
5.6
0.70
609.4
618.8
9.4
1.35
25ODD-117
304.0
311.5
7.5
0.49
322.0
324.1
2.1
1.73
396.2
402.0
5.8
1.20
407.6
410.0
2.4
4.53
465.5
473.0
7.5
1.98
479.0
483.5
4.5
1.41
488.0
504.5
16.5
0.54
508.0
510.6
2.6
10.16
545.0
549.5
4.5
0.98
25ODD-125
285.0
286.5
1.5
9.80
367.1
370.5
3.4
1.72
425.5
427.0
1.5
3.80
447.9
449.1
1.2
4.57
470.2
479.7
9.5
6.84
Including
478.5
479.7
1.2
27.51
560.9
566.0
5.1
0.53
592.2
596.0
3.8
0.48
601.0
609.7
8.8
0.40
652.3
653.3
1.0
3.10
691.0
692.0
1.0
2.58
25ODD-126
199.7
201.0
1.3
1.79
329.0
331.5
2.5
1.37
340.3
349.2
8.9
1.33
369.3
372.7
3.4
5.39
434.0
452.0
18.0
2.08
Including
450.5
452.0
1.5
9.68
488.0
527.5
39.5
1.31**
Including
488.0
489.5
1.5
10.93
537.5
544.5
7.0
0.99
613.0
616.0
3.0
5.04
25ODD-127
268.6
272.2
3.6
0.87
291.5
294.5
3.0
0.90
303.5
306.5
3.0
2.09
314.0
319.8
5.8
0.79
367.2
368.2
1.0
6.85
390.5
396.3
5.8
0.63
414.5
416.0
1.5
7.33
431.0
468.5
37.5
1.52
517.0
542.8
25.8
3.08
Including
533.7
536.8
3.1
17.06
548.6
554.5
5.9
0.59
25ODD-128
384.0
391.5
7.5
1.18
398.5
400.0
1.5
0.57
*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 3.0m internal dilution is applied.
**A maximum 5.0m internal dilution was applied. Grades are uncapped unless otherwise noted.
Figure 2. Cross-Section DDH 25ODD-127
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8712/267740_6d431f58443d5b15_002full.jpg
Table 2. Drill Hole Coordinates
Hole ID
Azimuth
Inclination
Easting
Northing
Length
Status
(degrees)
(degrees)
(m)
25ODD-114
176
-57
304790
602030
700
Reporting
25ODD-117
176
-50
305429
601849
646
Reporting
25ODD-122
142
-60
304648
602870
>1800
Drilling
25ODD-123
357
-50
304533
601522
109.5
Not completed
25ODD-125
175
-55
304356
602008
703.3
Reporting
25ODD-126
177
-53
304586
601948
646.7
Reporting
25ODD-127
356
-48
304907
601311
650.4
Reporting
25ODD-128
105
-65
304381
601862
436
Reporting
25ODD-129
147
-52
304160
602829
256.5
Pending
25ODD-130
178
-51
303677
602020
250.6
Pending
25ODD-131
0
-90
303923
602486
208.7
Pending
25ODD-132
178
-55
303681
602114
403.6
Pending
25ODD-133
148
-65
303981
602546
220.5
Pending
25ODD-134
20
-88
304442
602812
152.4
Pending
25ODD-135
177
-48
303728
602034
259.2
Pending
25ODD-136
178
-48
303731
602106
334.7
Pending
25ODD-137
180
-60
304406
602731
170.1
Pending
1
NI 43-101 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. (An updated MRE was announced in a news release dated
August 25, 2025 and the NI 43-101 Technical Report will be filed shortly)
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.
Drill core samples (halved-core) were shipped to ActLabs and some batches to MSALABS, both
certified laboratories 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 250g or 500g 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. 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 greenstone belt. In February 2024
the Company announced an updated NI 43-101 Mineral Resource Estimate
1
("MRE"), followed by the
announcement of an initial baseline Preliminary Economic Assessment ("PEA"), both reported in an NI
43-101 Report filed in April 2024, available on
www.sedarplus.ca
. The 2024 PEA contemplated an
open pit-only development scenario and included only 45% of the Omai Gold Project MRE. The
Company announced an updated, significantly increased Mineral Resource Estimate on August 25,
2025 and is commencing the preparation of an updated PEA that is expected in early 2026. Four drills
are currently active on the property: at Wenot the focus is to optimize the upcoming PEA, to further test
the limits of the deposit, including both east and west, and to upgrade some of the large Inferred
Resource to Indicated.
Additional drilling will explore certain known gold occurrences for possible near
surface higher-grade satellite deposits.
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
and will soon be connected to the two largest cities in Guyana, Georgetown and Linden, via paved road.
For further information, please see our website
www.omaigoldmines.com
or contact:
Elaine Ellingham, P.Geo.
President & CEO
+1.416.473.5351
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.com
. 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