PRESS RELEASE

from Banyan Gold Corp. (CVE:BYN)

Banyan's Recent Drillholes Demonstrate Continuity of High Grade with 1.85 g/t Au over 26.9m at Powerline Deposit, Yukon, Canada

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,

    • 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

    • 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

    • within 17.9m at 1.34 g/t Au

VANCOUVER, BC / ACCESS Newswire / 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 AurMac 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 oriented 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."

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.
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

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

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