Banyan’s Recent Drillholes Demonstrate Continuity of High Grade with 1.85 g/t Au over 26.9m at Powerline Deposit, Yukon, Canada
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Banyan’s Recent Drillholes Demonstrate Continuity of High Grade
with 1.85 g/t Au over 26.9m at Powerline Deposit, Yukon, Canada
September 15, 2025, TSX-V: BYN
New Diamond Drill Highlights Demonstrate Continuity of High Grade and Waste
Block Conversion to High-grade Domains in Northeast Powerline
• AX-25-660 – 1.85 g/t Au over 26.9m including 5.91 g/t Au over 3.5m,
o within 62.0m at 0.93 g/t Au
• AX-25-664 – 3.36 g/t Au over 5.0m within 19.5m at 1.12 g/t Au
o and 6.00 g/t Au over 2.0 m within 1.35 g/t Au over 27.0m,
• AX-25-667 – 6.03 g/t Au over 1.5m and 5.22 g/t Au over 1.4m
o within 17.9m at 1.34 g/t Au
VANCOUVER, BC, September 15, 2025 - Banyan Gold Corp . (the "Company" or "Banyan")
(TSX-V: BYN) (OTCQB: BYAGF) is pleased to announce it has intersected multiple instances of
visible gold in sheeted veins at the Powerline deposit (“ Powerline”) at its Aur Mac Project
(“AurMac”) in the prolific Tombstone Belt, Yukon, Canada . High-grade Gold (“Au”) in drillholes
AX-25-660, 664, and 667 highlight the potential for further high-grade gold intervals in Powerline
and confirm new 3D modelling mineralized domains. These holes also highlight the potential infill
drilling to convert waste blocks to ore blocks with improved continuity of high-grade mineralized
domains extending beyond the current Mineral Resource Estimate (“MRE”) (see Table 3 below)
conceptual pit boundary (Figure 1; Tables 1 and 2). To date, over 29,000m (127 holes) have been
drilled by the Company this year on the AurMac Project, with drilling currently ongoing.
“These results advance our target of defining 5 million ounces of plus 1 g/t. Specifically, these
holes from the Powerline deposit are focused on converting waste blocks that fall within the
footprint of the conceptual pit where the mineralized domains are only truncated based on a lack
of drilling,” said Tara Christie, President and CEO. “Guided by our reinterpretation of the geologic
controls of mineralization in Powerline , used to delineated 1.42 Moz of Indicated Mineral
Resources at 0.95 g/t (46.4 M tonnes) and 3.13 Moz of Inferred Mineral Resources at an
average gold grade of 0.98 g/t (99.2 M tonnes), at the 0.55 g/t gold cut off (see News Release
of July 8, 2025). The Powerline deposit boundaries remain open in all directions.”
Duncan Mackay, Vice President of Exploration, continued, “Building on our success from last year
in redeveloping our geologic model and achieving nearly one-to-one conversion ratio for inferred
to indicated in our MRE, we are further refining our model utilizing structural data from orient ed
drill core and geochemical data (bolstered by our onsite XRF). Specific mineralized domains can
be traced in Powerline adding continuity to high-grade zones, converting waste blocks in the
current MRE (Figure 2) and flattening and deepening the conceptual pit floor.”
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Figure 1: Plan map of the northeast portion of the Powerline deposit. Step-outs northeast of Powerline meant to test newly
interpreted mineralized domains have successfully intersected high-grade Au mineralization and have potential to convert waste
blocks within the conceptual pit to ore and expand the mineralized envelope of the deposit. Section line A-B refers to Figure 2.
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Figure 2: 50m Cross Section in northeast Powerline. Intersection in AX-25-667 extends mineralization up dip and shows potential
for waste block conversion within the conceptual pit outline (magenta outlines).
Table 1: Significant diamond drillhole assay intercepts for Powerline in this release
HOLE
NUMBER
From
(m) To (m)
Au Interval
(m)
Au Interval
(g/t)
AX-25-648 98.5 100.6 2.1 0.62
and 130.0 131.2 1.2 0.34
and 163.3 192.9 29.6 0.34
including 186.0 192.9 6.9 0.72
AX-25-653 34.0 36.0 2.0 0.54
and 49.0 63.0 14.0 0.32
and 85.8 91.8 6.0 0.36
and 104.3 135.5 31.2 0.65
including 104.3 104.9 0.6 16.70
and 147.5 152.5 5.0 0.31
and 164.5 168.6 4.1 0.40
and 192.6 237.5 44.9 0.37
AX-25-656 44.3 62.0 17.7 0.43
and 107.0 121.3 14.3 0.30
and 141.3 149.4 8.1 0.21
and 178.6 195.5 16.9 0.35
and 210.7 212.7 2.0 0.31
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and 236.7 253.8 17.1 0.24
and 269.8 282.8 13.0 0.26
AX-25-660 29.0 37.0 8.0 0.32
and 54.5 57.5 3.0 0.62
and 75.5 110.0 34.5 0.29
and 157.0 219.0 62.0 0.93
Including 163.6 190.5 26.9 1.85
including 163.6 167.1 3.5 5.91
including 163.6 164.3 0.7 15.40
including 166.6 167.1 0.5 21.50
and including 182.6 184.1 1.5 9.00
and 244.5 272.7 28.2 0.32
including 272.3 272.7 0.4 4.36
AX-25-664 19.5 39.0 19.5 1.12
including 31.4 36.4 5.0 3.36
including 31.4 31.9 0.5 6.30
including 34.9 36.4 1.5 8.53
and 49.5 59.9 10.4 0.76
including 51.0 52.0 1.0 6.04
and 70.0 108.3 38.3 0.28
and 138.5 158.5 20.0 0.32
and 170.5 181.0 10.5 0.60
and 205.0 232.0 27.0 1.35
including 217.0 219.0 2.0 6.00
and including 230.3 232.0 1.7 10.40
and 267.0 268.3 1.3 1.34
and 293.0 295.0 2.0 0.35
AX-25-667 18.0 25.5 7.5 0.57
and 64.5 82.4 17.9 1.34
including 64.5 66.0 1.5 6.03
including 81.0 82.4 1.4 5.22
and 97.0 98.5 1.5 0.32
and 105.5 105.8 0.3 1.15
and 123.0 128.8 5.8 0.36
and 178.7 179.8 1.1 0.44
and 308.3 322.0 13.7 0.43
and 360.8 366.1 5.3 0.73
*True widths are estimated to be 90% of drill interval
Table 2: Collar Locations for drill holes in this release
HOLE ID Easting (m) Northing (m)
Elevation
(m)
Depth
(m) Azimuth Dip
AX-25-648 468603 7083286 869 306.3 0 -60
5
AX-25-653 468461 7082954 879 301.8 0 -55
AX-25-660 468466 7082854 877 289.8 0 -55
AX-25-656 468508 7082945 889 300.2 0 -55
AX-25-664 468359 7082924 854 333.0 0 -55
AX-25-667 468555 7083091 865 412.1 0 -60
Analytical Method and Quality Assurance/Quality Control Measures
All diamond drill core was systematically logged and photographed by Banyan geology
personnel. All core samples (HTW and NTW diameter) were split on -site at Banyan’s core
processing facilities. Once split, half samples were placed back in the core boxes w ith the other
half of split samples sealed in poly bags with one part of a three -part sample tag inserted
within. Samples were delivered by Banyan personnel or a dedicated expediter to the Bureau
Veritas, Whitehorse preparatory laboratory where samples are prepared and then shipped to
Bureau Veritas’s Analytical laboratory in Vancouver, B.C. for pulverization and final chemical
analysis.
Core splits reported in this news release were analysed by Bureau Veritas of Vancouver, B.C.,
utilizing the four-acid digestion ICP -ES 35-element MA-300 or ICP-ES/MS 59-element MA-250
analytical package with FA -450 50 -gram Fire Assay with AAS finish for gold on all
samples. Samples returning >10 g/t Au were reanalysed by fire assay with gravimetric finish on a
50g sample (FA-550). High-grade samples with documented visible gold are also analysed using
metallic screen fire assay (FS -652). Bureau Veritas is a n accredited lab following ISO/IEC
17025:2017 SCC File Number 15895. A robust system of standards, ¼ core duplicates and blanks
has been implemented in the 2025 exploration drilling program and is monitored as chemical
assay data becomes available.
Qualified Persons
Duncan Mackay, M.Sc., P.Geo., is a “ Qualified Person” as defined under National Instrument
43-101, Standards of Disclosure for Mineral Projects (“NI 43-101”), and has reviewed and
approved the content of this news release in respect of all disclosure other than the MRE . Mr.
Mackay is Vice President Exploration for Banyan and has verified the data disclosed in this news
release, including the sampling, analytical and test data underlying the information.
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About Banyan
Banyan's primary asset, the AurMac Project is located in the Traditional Territory of First Nation
of Na -Cho Nyäk Dun, in Canada’s Yukon Territory. The current Mineral Resource Estimate
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(“MRE”) for the AurMac Project has an effective date of June 28, 2025 and comprises an Indicated
Mineral Resource of 2.274 million ounces of gold (" Au") (112.5 M tonnes at 0.63 g/t) and an
Inferred Mineral Resource of 5.453 Moz of Au (280.6 M tonnes at 0.60 g/t ) (as defined in the
Canadian Institute of Mining, Metallurgy and Petroleum (" CIM") Definition Standards for Mineral
Resources & Mineral Reserves incorporated by reference into NI 43 -101). The 215.3 square
kilometres (“sq km”) AurMac Project lies 40 k ilometres from Mayo, Yukon. The AurMac Proje ct
is transected by the main Yukon highway and benefits from a 3-phase powerline, existing power
station and cell phone coverage.
Table 3: Pit-Constrained Indicated and Inferred Mineral Resources – AurMac Project
Deposit Gold Cut-Off
(g/t)
Tonnage
(M Tonnes)
Average Gold
Grade (g/t)
Contained Gold
(Moz)
Indicated MRE
Airstrip 0.30 27.7 0.69 0.611
Powerline 0.30 84.8 0.61 1.663
Total Combined
Indicated MRE
0.30 112.5 0.63 2.274
Inferred MRE
Airstrip 0.30 10.1 0.75 0.245
Powerline 0.30 270.4 0.60 5.208
Total Combined
Inferred MRE
0.30 280.6 0.60 5.453
Notes to Table 1:
1. The effective date for the MRE is June 28, 2025 and was prepared by Marc Jutras, P.Eng., M.A.Sc., Principal,
Ginto Consulting Inc., an independent "Qualified Person" within the meaning of NI 43-101.
2. Mineral Resources which are not Mineral Reserves do not have demonstrated economic viability. The estimate
of Mineral Resources may be materially affected by environmental, permitting, legal, title, taxation,
sociopolitical, marketing, changes in global gold markets or other relevant issues.
3. The CIM Definition Standards were followed for classification of Mineral Resources. The quantity and grade
of reported Inferred Mineral Resources in this estimation are uncertain in nature and there has been insufficient
exploration to define these Inferred Mineral Resources as an Indicated Mineral Resource.
4. Mineral Resources are reported at a cut-off grade of 0.30 g/t gold for all deposits, using a US$/CAN$ exchange
rate of 0.73 and constrained within an open pit shell optimized with the Lerchs -Grossman algorithm to
constrain the Mineral Resources with the following estimated parameters: gold price of US $2,050/ounce,
US$2.50/t mining cost, US$10.00/t processing cost, US$2.00/t G+A, 90% gold recoveries, and 45° pit slopes.1
5. The number of tonnes and ounces was rounded to the nearest thousand. Any discrepancies in the totals are
due to rounding effects.
1 The gold price and cost assumptions are consistent with current pricing assumptions and costs and, in particular,
with those employed for recent technical reports for similar pit-constrained Yukon gold projects.
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Banyan trades on the TSX -Venture Exchange under the symbol “ BYN” and is quoted on the
OTCQB Venture Market under the symbol “ BYAGF”. For more information, please visit the
corporate website at or contact the Company.
ON BEHALF OF BANYAN GOLD CORPORATION
(signed) "Tara Christie"
Tara Christie
President & CEO
For more information, please contact:
Tara Christie • 778 928 0556 • [email protected]
Jasmine Sangria • 604 312 5610 • [email protected]
CAUTIONARY STATEMENT: Neither the TSX Venture Exchange, its Regulation Services Provider (as that term
is defined in policies of the TSX Venture Exchange) nor OTCQB Venture Market accepts responsibility for the
adequacy or accuracy of this release.
No stock exchange, securities commission or other regulatory authority has approved or disapproved the
information contained herein.
FORWARD LOOKING INFORMATION: This news release contains forward -looking information, which is not
comprised of historical facts and is based upon the Company’s current internal expectations, estimates, projections,
assumptions and beliefs and the Company’s plans and timing for the closing the 100% acquisition of the McQuesten
and Aurex properties. Such information can generally be identified by the use of forwarding -looking wording such as
“may”, “will”, “expect”, “estimate”, “anticipate”, “intend(s)”, “believe”, “potential” and “continue” or the negative thereof
or similar variations, Forward-looking information involves risks, uncertainties and other factors that could cause actual
events, results, performance, prospects and opportunities to differ materially from those expressed or implied by such
forward-looking information. Forward looking information in this news release includes, but is not limited to, the potential
for resource expansion ; ability to define 5M oz of Au @ 1 g/t, mineral resource estimates; mineral recoveries and
anticipated mining costs. Factors that could cause actual results to differ materially from such forward -looking
information include uncertainties inherent in resource estimates, continuity and extent of m ineralization, capital and
operating costs varying significantly from estimates, the preliminary nature of metallurgical test results, delays in
obtaining or failures to obtain required governmental, environmental or other project approvals, political risk s,
uncertainties relating to the availability and costs of financing needed in the future, changes in equity markets, inflation,
changes in exchange rates, fluctuations in commodity prices, and the other risks involved in the mineral exploration
and development industry, enhanced risks inherent to conducting business in any jurisdiction, and those risks set out
in Banyan’s public documents filed on SEDAR. Although Banyan believes that the assumptions and factors used in
preparing the forward-looking information in this news release are reasonable, undue reliance should not be placed on
such information, which only applies as of the date of this news release, and no assurance can be given that such
events will occur in the disclosed time frames or at all. Banyan disclaims any intention or obligation to update or revise
any forward -looking information, whether as a result of new information, future events or otherwise, other than as
required by law.