Banyan Gold Drills 1.90 g/t Au over 17.3m, Adds Fourth Drill Rig and Extends High-Grade Domains in Core of Powerline Deposit, Yukon, Canada

Rhea-AI Summary

Banyan Gold (OTCQB:BYAGF, TSXV:BYN) reports new drill results at the Powerline Deposit, AurMac Project, Yukon dated October 21, 2025. Key intercepts include 2.69 g/t Au over 11.8m and 1.90 g/t Au over 17.3m, plus multiple high-grade visible-gold intervals. The company announced an upsized 40,000 m drill program, added a fourth drill rig after a $31.4M strategic investment, and has completed >30,000 m so far in 2025. The AurMac MRE (effective June 28, 2025) reports Indicated 2.274 Moz Au and Inferred 5.453 Moz Au. Mineralized domains remain open and modelling aims to convert inferred ounces to indicated.

Positive

• Indicated MRE 2.274 Moz Au (112.5 Mt at 0.63 g/t)
• Inferred MRE 5.453 Moz Au (280.6 Mt at 0.60 g/t)
• Drill program upsized to 40,000 m with fourth drill rig
• Notable intercept: 2.69 g/t Au over 11.8 m (AX-25-697)

Negative

• Majority of resource is inferred: 5.453 Moz vs 2.274 Moz indicated
• Mineral Resources do not have demonstrated economic viability
• MRE uses assumptions including US$2,050/oz gold price which affect economics

VANCOUVER, BC, AB / ACCESS Newswire / October 21, 2025 / Banyan Gold Corp. (the "Company" or "Banyan") (TSXV:BYN)(OTCQB:BYAGF) is pleased to announce it has intersected high-grade gold at surface in the core of the Powerline Deposit ("Powerline") at its AurMac Project ("AurMac") in the prolific Tombstone Belt, Yukon, Canada.

Selected Highlights Demonstrate Continuity of High-Grade in Core of Central Powerline Deposit:

• AX-25-697 - 2.69 g/t gold ("Au") over 11.8 metres ("m") within 0.65 g/t gold over 72.5m; including 29.3 g/t Au over 0.4m, 21.04 g/t Au over 0.4m, and 2.26 g/t Au over 3.4m.

• AX-25-700 - 3.07g/t Au over 3.6m within 0.69 g/t Au over 29.3m, and 1.90 g/t Au over 17.3m; including 33.00 g/t Au over 0.8m

• AX-25-706 - 16.68 g/tAu over 1.1m within 2.39 g/t Au over 8.1m at surface

• AX-25-709B - 2.55 g/t Au over 6.4m within 0.85 g/t Au over 22.9m

High-grade gold in drillholes AX-25-697, 700, 706, and 709B, as outlined above, highlight the potential for very high-grade gold intervals in Powerline and continue to reinforce continuity in the core of the deposit and confirm new 3D modelling of the high-grade mineralized domains. These intersections also have the potential to convert inferred ounces from the current Mineral Resource Estimate ("MRE") (Table 3) into indicated resources in the Powerline Deposit (Figure 1; Tables 1 and 2). To date, the Company has drilled over 30,000m (130 holes) on AurMac this year, with current drill program ongoing.

"With our recent $31.4-million strategic investment by Alpayana we have upsized our drill program to 40,000 m and have added a fourth drill rig," stated Tara Christie, Banyan President and CEO. "Our modelling and drilling suggests that the deposit is open in all directions, confirming the +1g/t Au zones and potentially extending the zones beyond the previously known mineralization."

"Our drilling in the core of Powerline (Figure 1) continues to confirm continuity of refined and high-grade mineralized domains," added Duncan Mackay, Vice President of Exploration. "With mineralized domains open down-dip (Figure 2) we also have the potential to add additional high-grade ounces while converting inferred ounces to indicated. We continue to intersect visible gold, in zones of high-grade mineralization (Figures 3 and 4), and throughout the Powerline deposit."

Figure 1: Plan map of the northeast portion of the Powerline Deposit. High-grade mineralization is associated with emplacement of sheeted veins in favourable host rocks, primarily based on rheology; more brittle rocks are favourable hosts for sheeted vein emplacement. Cross-section line for Figure 2 shown by gold line.

Sheeted-veins with visible gold, bismuth sulphosalts, and arsenopyrite are localized in higher concentrations in zones of more competent, brittle rocks (Figures 3 and 4). Veins are centimetre to decimetre in scale, generally with trace to 2% accessory minerals (bismuth sulphosalts and arsenopyrite). As rheology of the stratigraphy controls vein emplacement, detailed modelling is being carried out to refine the litho-structural model of the deposit and help define more refined mineralized domains. Many mineralized domains are open down-dip, with potential for more domains to be identified outside of the current mineralised envelope.

Figure 2: Cross-section of the Powerline Deposit at 466500 E. Refined mineralized domains (in magenta) intersected in the drillholes in this release reinforce continuity of high-grade mineralization. Down-drip extensions of mineralized domains have potential to convert additional waste blocks into ore as well as flatten the conceptual pit floor.

Figure 3: Zones of sheeted-veins in drillhole AX-25-697 in central Powerline.

Figure 4: Visible gold associated with aggregates of acicular bismuth sulphosalts and fine-grained arsenopyrite. Intervals from drillhole AX-25-697 at 14.80-15.24m depth.

Table 1: Significant diamond drillhole assay intercepts for Powerline in this release

HOLE NUMBER	depth from	depth to	Au Interval (m)	Au Interval (g/t)
AX-25-697	13.5	86.0	72.5	0.65
Including	13.5	15.2	1.7	4.20
and including	60.2	86.0	25.8	1.30
Including	60.2	72.0	11.8	2.69
Including	61.4	61.8	0.4	29.30
Including	63.8	64.2	0.4	21.04
And	118.8	178.4	59.6	0.36
Including	131.0	140.2	9.2	0.55
and including	154.0	160.4	6.4	0.99
and including	173.2	174.4	1.2	1.82
And	201.9	212.4	10.5	0.52
Including	208.4	208.7	0.3	9.43
And	289.6	291.3	1.7	0.83
AX-25-699	9.1	14.0	4.9	0.51
and	37.2	58.0	20.8	0.28
including	56.2	56.5	0.3	7.24
and	92.5	94.0	1.5	0.36
and	105.2	141.7	36.5	0.41
including	114.3	115.8	1.5	2.35
including	135.6	141.7	6.1	1.07
and	163.1	178.4	15.3	0.56
including	164.5	169.0	4.5	1.20
and	199.6	208.5	8.9	0.48
including	207.0	208.5	1.5	2.02
and	232.7	257.6	24.9	0.43
including	234.2	236.0	1.8	3.01
including	256.0	257.6	1.6	1.33
AX-25-700	8.0	37.3	29.3	0.69
including	21.5	25.1	3.6	3.07
including	23.0	24.0	1.0	4.49
and including	36.9	37.3	0.4	12.60
and	68.5	70.0	1.5	1.06
and	86.0	91.0	5.0	0.32
and	97.0	98.5	1.5	0.36
and	104.5	106.0	1.5	0.44
and	122.0	200.0	78.0	0.56
including	132.4	133.5	1.1	1.45
and including	148.5	150.0	1.5	1.59
including	182.7	200.0	17.3	1.90
including	188.4	189.2	0.8	33.00
and including	198.6	200.0	1.4	1.06
and	261.6	262.2	0.6	0.68
AX-25-704	17.5	42.5	25.0	0.32
including	17.5	18.8	1.3	1.28
and including	28.2	28.7	0.5	8.85
and	55.9	56.9	1.0	0.38
and	64.5	66.0	1.5	0.37
and	71.0	72.0	1.0	0.31
and	104.7	209.1	104.4	0.48
including	104.7	105.2	0.5	7.98
and including	124.6	143.2	18.6	0.67
and including	156.7	158.2	1.5	1.41
and including	187.3	196.8	9.5	0.86
and including	208.0	209.1	1.1	2.06
and	225.0	226.5	1.5	0.50
and	232.3	232.8	0.5	0.37
AX-25-706	7.7	15.8	8.1	2.39
including	14.7	15.8	1.1	16.68
and including	15.2	15.8	0.6	24.80
and	40.4	40.6	0.2	1.66
and	92.4	92.7	0.3	0.31
and	112.8	135.2	22.4	0.47
including	114.2	115.8	1.6	1.72
and including	126.6	131.2	4.6	0.92
and	156.6	173.8	17.2	0.84
including	159.4	165.9	6.5	1.57
AX-25-709B	25.0	33.5	8.5	0.46
including	32.0	33.5	1.5	1.30
and	61.2	61.6	0.4	1.98
and	86.0	157.0	71.0	0.32
including	86.0	93.5	7.5	0.75
and	126.8	127.8	1.0	1.03
and including	143.8	149.5	5.7	1.03
and	174.6	197.5	22.9	0.84
including	174.6	181.0	6.4	2.55
including	180.7	181.0	0.3	14.00
and	196.0	197.5	1.5	1.20
and	222.0	223.1	1.1	1.96
and	242.8	244.0	1.2	0.61
AX-25-715	13.0	23.0	10.0	0.29
including	21.9	23.0	1.1	1.38
and	89.8	99.0	9.2	0.83
including	94.6	99.0	4.4	1.19
including	94.6	95.0	0.4	5.02
and	110.4	111.0	0.6	0.44
and	113.4	114.5	1.1	0.43
and	119.0	125.0	6.0	0.30
and	134.0	140.3	6.3	0.31
and	157.0	177.8	20.8	0.39
including	170.0	173.9	3.9	1.49
and	189.9	191.0	1.1	0.54
and	213.5	215.0	1.5	1.07

Note: True widths are estimated to be 90% of drill interval

Table 2: Collar Locations for drillholes in this release

HOLE ID	Easting (m)	Northing (m)	Elevation (m)	Depth (m)	Azimuth	Dip
AX-25-697	466451	7083006	753	310.9	0	-60
AX-25-699	466507	7083046	764	270.0	0	-60
AX-25-700	466550	7083004	766	306.3	0	-60
AX-25-706	466655	7083000	771	249.9	0	-60
AX-25-709B	466650	7082899	761	251.5	0	-60
AX-25-715	466698	7083054	777	251.5	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 with 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 an 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.

Upcoming Events

• Hidden Gems Conference, New York - October 20 to 21, 2025

• New Orleans Investment Conference - November 2 to 5, 2025

  • Corporate Update and Breakfast - November 5, 7:15 AM CST

• Deutsche Goldmesse Fall, Frankfurt - November 14 to 15, 2025

• Yukon Geoscience Forum, Whitehorse - November 16 to 19, 2025

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 ("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 M oz 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 303 square kilometres ("sq km") AurMac Project lies 40 km from Mayo, Yukon. The AurMac Project 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.

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 • tchristie@banyangold.com
Jasmine Sangria • 604 312 5610 • jsangria@banyangold.com

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; the potential to convert inferred resources into indicated resource, 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 mineralization, 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 risks, 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.

SOURCE: Banyan Gold Corp.

View the original press release on ACCESS Newswire

FAQ

What did Banyan Gold (BYAGF) report on October 21, 2025 at Powerline?

Banyan reported multiple high-grade intercepts including 2.69 g/t Au over 11.8m and 1.90 g/t Au over 17.3m, plus an upsized 40,000 m drill program.

How much gold is in AurMac's current MRE for BYAGF?

The AurMac MRE (effective June 28, 2025) shows Indicated 2.274 Moz Au and Inferred 5.453 Moz Au.

What impact does the $31.4M Alpayana investment have on BYAGF drilling?

The $31.4M strategic investment allowed Banyan to upsiz e the program to 40,000 m and add a fourth drill rig.

Which drill intercepts from the release are most material for BYAGF investors?

Highlighted intercepts include AX-25-697: 2.69 g/t Au over 11.8m and AX-25-700: 1.90 g/t Au over 17.3m, plus visible-gold occurrences.

Are AurMac mineral resources proven economic for BYAGF shareholders?

No; the release notes that Mineral Resources are not Mineral Reserves and do not have demonstrated economic viability.

Does Banyan expect to convert inferred ounces at Powerline for BYAGF?

The company states drilling and refined modelling have the potential to convert inferred ounces to indicated, subject to further work.