Banyan Gold Confirms New Gold-Silver Discovery at Seattle Creek with 5.70 g/t Au and 544 g/t Ag over 0.5m, Nitra Project, Yukon

August 25, 2026, TSX-V: BYN

VANCOUVER, BC, August 25, 2026 - Banyan Gold Corp. (the "Company" or "Banyan") (TSXV: BYN) (OTCQB: BYAGF) is pleased to announce that the first drillhole at the Seattle Creek zone on the greenfields Nitra Project (“Nitra”), has confirmed a new highgrade gold and silver mineralized system 25 km west of the AurMac Deposit. Only the top 95 metres of the 600-metre hole have been assayed to date. Seattle Creek is located on claims 100% owned by Banyan with no underlying royalties and is the second of eleven exploration targets being drill tested in 2026 on Banyan’s broader 830 sq km AurMac and Nitra land packages in the Mayo Mining District, Yukon (The discovery at the first greenfield target, Roaring Fork and the discovery at Seattle Creek was announced on July 28, 2026, with visible gold and photos of drill core at Seattle Creek.)

Highlights from Seattle Creek Zone at Nitra:

• NT-26-006 – 0.91 g/t Gold and 27.01 g/t Silver over 12.1 m from 41.7 m;
  • including 4.04 g/t Au over 1.4 m and 3.32 g/t Au over 1.4 m; and within the 4.04 g/t Au interval, 0.5 m returned 5.70 g/t Au and 544 g/t Ag.

*Note: Only assays from the top 95 m of the 600 m NT-26-006 drillhole have been received to date; assays for the lower portion of the hole are pending.

“Initial assays from the Seattle Creek zone have returned high-grade gold and silver mineralization, adding another mineralized zone to our greenfields Nitra project,” stated Tara Christie, President and CEO. “Diamond drillhole NT-26-006 intersected multiple occurrences of visible gold hosted in extensional quartz veins with associated bismuth sulphosalts and arsenopyrite. Together with the other geologic indicators, Seattle Creek has the potential to expand with follow-up drilling. The discovery of additional visible gold identified in drillhole NT-26-002, with assays pending, also supports the potential to extend the Roaring Fork Zone.”

In June 2026, Banyan commenced its greenfields exploration diamond drilling program at Nitra. The program is designed to test 11 regional targets identified through new geophysical surveys, soil geochemical anomalies, placer-mining history and prospecting. More than 7,500 m of drilling is planned to use three helicopter-supported drills to minimize the initial footprint and accelerate target testing. Nitra benefits from an extensive road network established by previous placer mining activities. The objective of the program is to identify potential satellite deposits and additional expressions of Reduced Intrusion-Related Gold Systems ("RIRGs") west of AurMac, where more than 95% of Banyan’s district-scale land package remains untested by drilling.

“The large, annealed shear zone, brecciated quartz veins, and multiphase sulphide mineralization, all spatially associated with high-grade gold mineralization in extensional quartz veins, are encouraging indicators of a potential larger mineralizing system at the Seattle Creek and Roaring Fork zones,” stated Duncan Mackay, Vice President Exploration. “While visible gold can be an encouraging indicator, it does not always correlate with assay grade. We are encouraged that the visible gold at Seattle Creek is associated with high-grade assays and are planning follow-up drilling to test the extent and geometry of the system.”

Figure 1: Location of the Seattle Creek Zone (Figure 2) in Nitra, approximately 25km west of AurMac and 2.5km north of Roaring Fork Zone.

At Seattle Creek, a combination of soil geochemical anomalies (Gold, Bismuth, Arsenic) and geophysical signatures (resistive anomaly) were used to identify the target. These targeting indicators were combined with proximal placer mining in the creek drainage to locate and prioritize the targets. Mineralization at Seattle Creek is predominantly hosted in large extensional quartz vein hosting bismuth sulphosalts, arsenopyrite, pyrite, and locally sphalerite (Figure 5), and foliation sub-parallel shear veins hosting bismuthsulphosalts, arsenopyrite, pyrite. Mineralization at Seattle Creek is spatially associated with annealed (cemented) faults with brecciated quartz vein material and wall rock entrained in a pyrite rich ground mass (Figures 7-9). Long lived/reactivated structures are strong indicators for mineralization potential with complex structural regimes and fluid pathways providing opportunities for mineralizing fluids to permeate the country rock and precipitate gold.

Figure 2: Plan map of Seattle Creek Zone in Nitra. Drill hole traces for NT-26-006 shown. Blue line denotes cross section (Figure 3).

Figure 3: Cross Section A-B in Figure 2 – Seattle Creek Zone – Nitra. Numerous visible gold occurrences in potential mineralized zone between 36m and 53m primarily hosted in metasedimentary and metavolcanic rocks. Stratigraphy is dipping moderately (~35-45 degrees) slightly east of south (approx. 165-170 degrees). Extensional veins are dipping moderately (30-50 deg) slightly west of north. Major annealed shear zones at 110-115m (Figure 7 and 8) and 364- 367m (Figure 9). The orientation of annealed shear zones is yet to be confirmed and will require additional drilling.

Figure 4: Mineralized extensional quartz veins in predominantly metasedimentary rocks in drillhole NT-26-006 from Nitra. The Quartz veins host visible gold, bismuth-sulphosalts, and arsenopyrite (Figures 5 and 6).

Figure 5: Potential mineralized intervals from drillhole NT-26-006: Top - 36.2-36.7m – extensional quartz vein bearing visible gold, bismuth sulphosalts, arsenopyrite, and pyrite. Middle – 40.9-41.2m – extensional quartz vein bearing visible gold, bismuth sulphosalts, pyrrhotite, and pyrite. Bottom – 41.9-42.2m – local quartz shear veins and extensional quartz-carbonate veins associated with calc-silicate alteration and pyrrhotite, arsenopyrite, pyrite sulphide replacement of calcareous metasedimentary rocks.

Figure 6: Visible gold occurrences from diamond drillhole NT-26-006 at Seattle Creek, Nitra. A) 40.4m visible gold intergrown with acicular bismuth sulphosalts. B) 40.9m visible gold spatially associated with pyrrhotite, arsenopyrite, and bismuth sulphosalts. C) and D) 41.0m visible gold spatially associated with pyrrhotite and intergrown with bismuth sulphosalts grains. E) 52.7m visible gold intergrown with arsenopyrite grain. F) 52.7m visible gold in extensional quartz vein.

Figure 7: Zone of intensely sheared/deformed rock in drillhole NT-26-006 (Figure 3). Spatial association with visible gold mineralization from 36-53m in NT-26-006 is a strong indicator of potential for a more widespread mineralizing system at Seattle Creek.

Figure 8: Brecciated quartz shear vein hosting bismuth sulphosalts, arsenopyrite, sphalerite, and pyrite. Late brecciation and mineralization of existing shear veins indicate a long-lived structure which underwent reactivation. Brecciation and mineralized ground mass may indicate high fluid flux through the system; reactivated structures may act as major fluid pathways for concentrating regionally pervasive mineralizing fluids.

Figure 9: Zones of brecciated and annealed rock in drillhole NT-26-006. Healed breccias and associated shear zones may be indicative of long-lived, large structures, which can act as fluid pathways for regional mineralizing systems.

Figure 10: Plan map of Roaring Fork Zone in Nitra. Drillhole traces for NT-26-001 and -002. De-surveyed partial assay values for NT-26-001 and trace of NT-26-002 shown with surface soil sample anomalies highlighted. Cross section denoted by blue line (Figure 11).

Figure 11: Cross section 7072350N – Drillholes NT-26-001 and -002 (results pending) are shown. Multiple instances of visible gold, including recently identified intervals in NT-26-002 (Figures 12 and 13), are promising indicators of a larger mineralizing system in the Roaring Fork zone. There is a change in rock-type approximately mid-way downhole with folded and highly-strained mixed metavolcanic, metasedimentary, felsic dyke rocks giving way to predominantly metasedimentary rocks dominated by chlorite and moderate grade metamorphic minerals (sillimanite, andalusite, possible retrograde cordierite). Stratigraphy is dipping moderately (~40-45 degrees) slightly east of south (approx. 160- 170 degrees). Extensional veins are dipping moderately (20-35 degrees) slightly west of north (340-360). Extensional veins and mineralized shear veins are concentrated in the top 300m of the drillholes (note red traces for extensional veins).

Figure 12: Quartz extensional vein in NT-26-002, hosting visible gold (Figure 13), pyrite, and bismuth sulphosalts. While visible gold can be an indicator of grade for an interval, due to the variable nature of nuggety gold, presence of visible gold may not always indicate high-grade assay results.