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Sun Summit Drills Strongest Interval to Date at the Creek Zone: 81.0 Meters of 4.80 g/t Gold from 26 Meters Downhole, Including 14.0 Meters of 19.81 g/t Gold at the JD Project, Toodoggone District, B.C.

Drill Results

Sun Summit Drills Strongest Interval to Date at

the Creek Zone: 81.0 Meters of 4.80 g/t Gold

from 26 Meters Downhole, Including 14.0

Meters of 19.81 g/t Gold at the JD Project,

Toodoggone District, B.C.

Vancouver, British Columbia--(Newsfile Corp. - November 25, 2025) - Sun Summit Minerals

Corp. (TSXV: SMN) (OTCQB: SMREF) (

"Sun Summit"

or the

"Company"

) is pleased to report the

remaining assay results from all 2025 drilling at the Creek Zone, JD Project, Toodoggone Mining

District, north-central British Columbia.

Drill hole

CZ-25-021

returned the strongest interval of near-surface gold mineralization drilled to date at

the Creek Zone:

81.0 meters of 4.80 g/t gold starting at 26.0 meters downhole, including 14.0

meters of 19.81 g/t gold

. The drill hole tested the down-dip extent of significant gold mineralization

intersected in drill hole CZ-25-007 (

78.0 meters of 3.72 g/t gold including 19.1 meters of 7.50 g/t

gold

, see news release dated

September 8

th

, 2025

). This interval extends bulk-tonnage and high-grade

gold mineralization to a vertical depth of approximately 150 meters from surface (Figures 2 and 3).

Highlights:

Drill Hole CZ-25-021 tested the down-dip extent of significant gold mineralization

intersected in drill hole CZ-25-007 and returned an equally strong zone of near-surface,

continuous gold mineralization punctuated with high-grade veins:

81.0 meters of 4.80 g/t gold from 26.0 meters downhole

, including

34.0 meters of 9.07 g/t gold, and including

high-grade intercepts of:

155 g/t Au over 1.0 meter at 42.0 meters downhole

101 g/t Au over 1.0 meter at 54.0 meters downhole

30.6 g/t Au over 1.3 meter at 78.0 meters downhole

Confirms the strong high-grade gold potential of the Creek Zone:

The 81.0-meter interval in

CZ-25-021 is down-dip from the significant interval intersected in CZ-25-007 and extends the zone

at depth with strong continuity extending approximately 150 meters from surface. Based on these

results, management believes that further drilling down-dip and stepped to the northeast is

warranted.

Establishing significant scale-potential at the Creek Zone:

Drilling in 2025 outlined a

significant, fault-bounded northwest-trending mineralized corridor that spans ~750 meters by 300

meters and ~150 meters vertical depth from surface (Figure 1). Highlight intervals across the

Creek Zone in 2025 include:

46.0 meters of 0.9 g/t gold from 20.0 meters downhole

and

1.0 meters of 158.5 g/t

gold

from 134.0 meters downhole

and

17.0 meters of 1.25 g/t gold from 151.0 meters

downhole

in hole CZ-25-008.

17.0 meters of 2.32 g/t gold from 308.5 meters downhole

including

13.5 meters of 2.85

g/t Au

in hole CZ-25-016, approximately 460 meters southeast of CZ-25-021 (Figures 1 and

2).

15.0 meters of 1.39 g/t gold from 87.0 meters downhole

, including

10.5 meters of 1.75

g/t gold

in hole CZ-25-018, approximately 100 meters northwest of CZ-25-021 (Figures 1

and 2).

Every hole intersected gold mineralization and the system remains open in all

directions across the corridor.

Metallic screen analyses underway:

A large selection of Creek Zone drill core from 2024 and

2025 drilling has been submitted for metallic screen analysis to better understand the gold

deportment.

Finn Zone and Belle South Porphyry Zone results pending:

Assay results are pending from

four drill holes from the Finn Zone, located approximately 3.5 km east of the Creek Zone as well as

two drill holes from a compelling porphyry target at Belle South, 8 km southeast of the Creek Zone.

"We are pleased to announce very exciting new drill results from the 2025 program on the Creek Zone.

The 2025 program was successful in demonstrating large intervals of near-continuous gold and silver

mineralization in the near surface portion of the Creek Zone, highlighting high-grade gold in veins, while

also identifying important structural features. Every completed drill hole intersected gold-silver

mineralization and continues to demonstrate there is a zone of gold and silver mineralization with

significant width and depth expansion potential, punctuated by well-mineralized quartz-carbonate veins

with some of the highest-grade gold drill intercepts known from the JD property," said Niel Marotta, CEO

of Sun Summit Minerals. "The final hole of this year's drill program at the Creek Zone returned the largest

gram-meter intercept of both the 2024 and 2025 programs. While we await more exciting results from

the Finn and Belle South Zones, we continue modelling and planning for follow-up drill holes at the Creek

Zone, which remains open for expansion. Our newest iteration of a robust 3D geological and structural

model will inform targeting for the next season and gives us a strong technical advantage relative to

historical drilling which failed to recognize the interplay of important orientations of the various structural

fabrics inherent to the mineralization domains, including bulk-tonnage and high-grade potential of the

Creek Zone."

Table 1. Assay Results for Drill Hole CZ-25-021

Hole

From_m

To_m

Interval_m

Au g/t

Ag g/t

CZ-25-021

26.00

107.00

81.00

4.80

3.20

including

26.00

60.00

34.00

9.07

6.46

including

42.00

56.00

14.00

19.81

10.89

including

42.00

43.00

1.00

155.00

36.30

including

54.00

55.00

1.00

101.00

77.90

including

55.00

56.00

1.00

9.55

7.65

including

64.00

83.00

19.00

2.38

1.34

including

78.00

79.33

1.33

30.60

12.55

including

87.00

107.00

20.00

1.74

0.65

including

96.00

97.65

1.65

10.10

3.00

and

117.45

123.00

5.55

0.77

2.95

and

347.00

353.00

6.00

0.27

0.14

Notes:

1. Intervals are downhole core lengths. True widths are unknown.

2. Calculations are uncut and length-weighted using a 0.10 g/t gold cut-off.

3. Grades have not been capped in the length-weighted averaging.

2025 Creek Zone Drill Program

Drilling in 2025 at the Creek Zone was designed to investigate the lateral and vertical extent of high-

grade and bulk-tonnage gold mineralization (Figures 1 and 2). Results of 15 HQ diameter drill holes for

5,110 meters of drilling are being used to evaluate the newly modeled structural architecture of the zone.

These holes were designed to systematically test the vein-controlling structures on 50 to 100 meter

pierce-points covering a strike-length of over 800 meters and a down-dip extent of over 200 meters

(Figures 1 and 2). A total of 3,079 samples were taken representing an average sample length of 1.64

meters.

Figure 1.

Plan map showing drill collar locations of all Creek Zone drill holes. Selected highlights from

the 2024 drill program at the Creek Zone are also shown (see October 2nd, 2024 and October 16th,

2024 news releases). Inset plan map of new structural model of the Creek Zone showing the main

bounding hanging wall and foot wall faults (purple), antithetical interal fault zones (light blue) and

main-fault parallel veins (red). See references 1 and 2 for sources of historical drill data.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/6142/275826_04fb63bf84ed58f1_002full.jpg

Drill Hole CZ-25-021

Drill hole CZ-25-021 was collared from the same pad as CZ-25-007 (78.0 meters of 3.72 g/t gold

including 19.1 meters of 7.50 g/t gold, see news release dated

September 8

th

, 2025

), however it was

swung to the southeast with a 230

o

azimuth and a steeper dip of -68

o

(Table 3). The pad is 75 meters to

the north of hole CZ-24-004 (122.53 metres of 2.11 g/t gold including 4.04 metres of 46.78 g/t gold, see

October 2, 2024

news release) and stepped out 100 meters west of hole CZ-24-005 (57.95 meters of

2.69 g/t gold including 19.50 meters of 7.31 g/t gold, see

October 16, 2024

news release, Figure 1).

The hole was designed to test the down-dip extent of gold mineralization intersected in drill

hole CZ-25-007

.

Figure 2.

Oblique long section view through the Creek Zone drill holes showing downhole assays for

all drill holes including CZ-25-007 and CZ-25-021. Selected highlights from the 2024 drill program at

the Creek Zone are also shown (see October 2nd, 2024 and October 16th, 2024 news releases). See

references 1 and 2 for sources of historical drill data.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/6142/275826_04fb63bf84ed58f1_003full.jpg

The upper interval of strong disseminated and high-grade vein-hosted gold mineralization in CZ-25-021

(e.g.,

81.0 meters of 4.80 g/t gold

, Table 1) is approximately 25 to 50 meters down-dip and offset

along strike from the significant zone of gold mineralization in CZ-25-007 (Figure 3). These intercepts

are interpreted by management to represent a new zone of mineralization that trends parallel to- and/or

along-strike from the main, steeply-dipping northwest-striking vein-sets (e.g., 22.0 m of 11.7 g/t Au

including 4.0 m of 61.2 g/t Au, in hole CZ97-008

1

) intersected in previous drill programs to the south

(Figure 1).

The upper interval in CZ-25-021 contains multiple high-grade veins and breccias (

155.0 g/t gold over

1.0-meter, 101.0 g/t gold over 1.0 meter, and 30.6 g/t gold over 1.3 meters,

Table 1) within the

broad zone of disseminated gold mineralization (Figure 4). Similar to CZ-25-007, many of these higher-

grade intervals contain fine visible gold (Figure 4). The numerous high-grade veins intersected in many

holes near CZ-25-021 (e.g., JD-97-008, CZ-24-004, CZ-24-005. CZ-25-007, CZ-25-008) support the

strong, high-grade potential of the Creek Zone and validate the newly developed structural model.

Figure 3.

Cross section through drill holes CZ-25-007 and CZ-25-021 showing downhole assay data.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/6142/275826_04fb63bf84ed58f1_004full.jpg

Southeast Extension

Drill holes CZ-25-008, 009, 010, 011, 012, 013, 014, 015, 016 and 017 tested the southeastern extent of

bulk-tonnage and high-grade gold mineralization along the Creek Zone structural corridor. All holes

intersected gold mineralization and demonstrated a northwest, structurally controlled zone measuring at

least 750 meters by 300 meters and approximately 150 meters vertical. This mineralized corridor is

open for expansion along strike and down-dip (Figure 1 and 2). Management believes that further drilling

is warranted to test for parallel mineralized structures to the north and up-dip of hole CZ-25-017 (Figure

1).

Drill hole CZ-25-016 intersected 17.0 meters of 2.32 g/t gold from 308.5 meters downhole including 13.5

meters of 2.85 g/t Au (Figures 1 and 2 and Table 2). This interval is approximately 460 meters southeast

of CZ-25-021 (Figures 1 and 2). Drill hole CZ-25-014 intersected a broad zone of near-surface gold

mineralization, 64.0 meters of 0.60 g/t gold including 11.0 meters of 1.23 g/t gold from 47 meters

downhole. This interval is approximately 120 meters from CZ-25-021. Holes CZ-25-016, CZ-25-014 and

all holes along the structural corridor highlight the significant scale potential of the Creek Zone (Figures 1

and 2).

Structural Model

Orientated drill core data from 2024 and 2025, geological mapping and historical drill data were

incorporated into the first-ever 3D geological and structural model of the Creek Zone to guide

exploration drilling. Two distinct fault sets appear in the drill core and surface mapping: ~295-300° trend

and 315-320° trend both dipping ~50°. Intersections of these two fault sets appears to be a major control

on mineralization with vein-oriented core data suggesting an assemblage of individual NW striking,

steeply dipping veins. Taken together the Creek Zone represents a simple shear deformation zone with

secondary and antithetic mineralized fractures and structural intersections that produced mineralization

pathways and the formation of the high-grade gold veins and vein-breccias intercepted in drill holes

clustered around holes CZ-25-007 and CZ-25-021.

Management believes that additional drilling along the entire Creek Zone structural corridor is warranted

to test for these north-plunging zones of higher-grade mineralization along fault-intersections which may

have been missed in previous drill programs due the orientations of many of the historic drill holes.

Creek Zone Geology

All drill holes across the Creek Zone intersected a bedded sequence of intermediate volcanic and

volcaniclastic rocks re-interpreted from 2025 mapping to be a sequence within the lower feldspar-

hornblende unit of the Metsantan Member of the Early Jurassic Toodoggone formation. Higher-grade

gold mineralization is hosted in epithermal-related and locally banded quartz-carbonate veins, veinlets

and sulfide-cemented breccias with locally strong potassium feldspar alteration halos (Figure 4). Vein-

hosted sulfides include pyrite, sphalerite, ± chalcopyrite and galena with some veins containing visible

gold. Bulk-tonnage mineralization is associated with selectively pervasive sericite-chlorite-hematite

alteration with disseminated pyrite, proximal to vein-associated potassic alteration (Figure 4).

Next Steps

A selection of samples from 2024 and 2025 drilling at the Creek Zone has been submitted to the ALS

Global analytical facility in North Vancouver, British Columbia for metallic screen fire assay to better

define the nature and grade of gold mineralization. The metallic screen method utilises a larger sample

and a tailored preparation procedure to systematically capture native gold, if present. These methods

yield a more robust analytical and statistical estimate of gold grade. Results from this metallic screen

study will be compared to the traditional fire assay data to define a statistical based workflow for

sampling and analyzing intervals with high-grade gold mineralization.

Assay results are pending for four holes drilled at the Finn Zone, located approximately 3.5 km east of

the Creek Zone, and two drill holes from the Belle South Porphyry Zone, located approximately 8.0

kilometers southeast from the Creek Zone.

Table 2. Assay Results for Drill Holes CZ-25-008 to CZ-25-020

Hole

From_m

To_m

Interval_m

Au g/t

Ag g/t

CZ-25-008

20.00

66.00

46.00

0.90

1.92

including

20.00

34.00

14.00

1.51

4.37

including

22.54

26.84

4.30

3.17

3.77

including

41.00

66.00

25.00

0.80

1.04

including

55.00

60.00

5.00

2.89

3.58

and

79.00

105.00

26.00

0.31

0.15

including

84.00

105.00

21.00

0.35

0.15

and

134.00

135.00

1.00

158.50

10.05

and

151.00

168.00

17.00

1.25

0.80

including

162.63

164.50

1.87

9.56

6.38

and

192.00

203.00

11.00

0.48

0.13

including

198.00

201.00

3.00

1.13

0.15

CZ-25-009

93.00

104.00

11.00

0.30

0.29

and

109.00

114.00

5.00

0.39

0.37

and

155.67

191.53

35.86

0.37

0.81

and

241.00

254.00

13.00

0.29

0.31

CZ-25-010

116.00

119.23

3.23

0.94

0.37

and

132.00

135.00

3.00

0.26

2.90

and

141.71

176.00

34.29

0.54

0.73

including

153.14

170.00

16.86

0.73

1.08

including

154.39

161.75

7.36

1.07

0.76

and

207.50

212.75

5.25

0.90

1.08

CZ-25-011

87.00

91.00

4.00

0.33

0.02

and

127.00

174.00

47.00

0.58

0.63

including

127.00

141.00

14.00

0.61

0.60

including

132.00

136.00

4.00

1.04

0.58

including

145.00

174.00

29.00

0.64

0.72

including

150.00

157.00

7.00

1.17

1.79

and

222.00

224.00

2.00

0.85

0.03

and

247.02

252.02

5.00

0.40

0.05

CZ-25-012

131.44

135.44

4.00

0.74

0.83

and

165.00

208.00

43.00

0.72

0.48

including

165.00

175.00

10.00

1.36

0.38

and

309.00

320.00

11.00

0.25

0.28

CZ-25-013

48.00

64.00

16.00

0.94

1.50

including

48.00

54.00

6.00

1.61

2.93

and

78.00

86.00

8.00

0.30

0.33

and

96.00

102.00

6.00

1.13

2.77

and

108.00

117.00

9.00

1.00

2.08

and

153.00

157.00

4.00

1.79

0.81

and

205.00

209.00

4.00

3.23

10.32

and

231.00

233.00

2.00

0.33

0.86

CZ-25-014

47.00

111.00

64.00

0.60

0.83

including

47.00

58.00

11.00

1.23

1.53

including

61.00

67.00

6.00

0.39

0.67

including

73.00

99.00

26.00

0.71

1.05

including

81.00

99.00

18.00

0.93

1.44

including

104.00

111.00

7.00

0.47

0.09

and

211.00

218.00

7.00

1.50

1.15

including

215.00

218.00

3.00

3.38

2.22

CZ-25-015

126.49

132.00

5.51

1.19

0.44

and

164.00

166.00

2.00

0.61

0.10

and

176.00

191.00

15.00

1.18

0.71

and

196.00

198.00

2.00

0.35

0.17

CZ-25-016

67.70

71.00

3.30

0.56

0.45

and

152.00

156.00

4.00

0.63

0.53

and

159.00

163.00

4.00

0.34

0.12

and

222.00

233.50

11.50

0.30

0.39

and

276.00

285.00

9.00

0.42

1.20

and

308.50

325.50

17.00

2.32

1.24

including

308.50

322.00

13.50

2.85

0.88

including

308.50

313.00

4.50

7.90

1.85

CZ-25-017

109.00

128.00

19.00

0.45

0.45

including

120.23

128.00

7.77

0.80

0.67

including

120.23

122.00

1.77

2.87

1.92

and

296.35

297.65

1.30

1.00

7.37

CZ-25-018

87.00

102.00

15.00

1.39

0.79

including

90.00

100.50

10.50

1.75

0.76

and

112.00

133.00

21.00

0.68

1.41

including

126.00

131.00

5.00

1.76

3.88

and

306.00

310.00

4.00

0.36

0.07

CZ-25-019

86.00

172.00

86.00

0.36

2.59

including

105.00

117.00

12.00

0.63

2.41

including

123.00

128.00

5.00

1.27

13.97

including

144.00

157.00

13.00

0.68

1.50

and

252.00

257.00

5.00

0.80

0.29

and

364.00

366.00

2.00

2.05

0.67

CZ-25-020

100.00

132.00

32.00

0.43

2.06

including

103.00

112.00

9.00

1.20

5.80

and

149.00

164.00

15.00

0.28

2.43

and

168.10

174.00

5.90

0.31

0.46

and

253.00

262.13

9.13

0.37

0.78

and

276.00

285.00

9.00

0.31

0.08

and

301.00

305.00

4.00

0.31

3.80

and

318.85

325.00

6.15

0.25

1.04

and

330.00

332.00

2.00

0.39

0.70

and

341.00

349.00

8.00

0.28

0.34

Hole

From_m

To_m

Interval_m

Au g/t

Ag g/t

Notes:

1. Intervals are downhole core lengths. True widths are unknown.

2. Calculations are uncut and length-weighted using a 0.10 g/t gold cut-off.

3. Grades h

ave not been capped in the length-weighted averaging.

Figure 4.

Core photos of CZ-25-021, A. Box photos showing core from 22.17 meters to 62.30 meters

downhole which includes a broad interval of 34.0 meters of 9.07 g/t Au and two high-grade intervals of

155 g/t Au over 1.0 meter and 101 g/t Au over 1.0 meter. Individual down hole gold assay results are

annotated at the sample depths. B. high-grade quartz-sulfide vein with visible gold at 54.1 meters

down hole. C. sulfide-cemented hydrothermal breccia at 54.9 meters down hole with visible gold

Abbreviations, qtz = quartz, carb = carbonate, sph = sphalerite, cpy = chalcopyrite.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/6142/275826_04fb63bf84ed58f1_005full.jpg