SMN.V · 2026-01-21 12:00:00

Sun Summit Reports Significant High-Grade Copper, Gold and Silver Mineralization at the Theory Project, Toodoggone Mining District, B.C.

Exploration Programs

Sun Summit Reports Significant High-Grade

Copper, Gold and Silver Mineralization at the

Theory Project, Toodoggone Mining District,

B.C.

Vancouver, British Columbia--(Newsfile Corp. - January 21, 2026) - Sun Summit Minerals Corp. (TSXV:

SMN) (OTCQB: SMREF) (

"Sun Summit"

or the

"Company"

) is pleased to report final analytical and

petrographic results from the 2025 field program at its Theory Project, in the Toodoggone Mining

District, north-central British Columbia (the "Theory Project").

The Theory Project borders Thesis Gold Inc.'s Ranch Project to the north and is located 10 km to the

northwest of Sun Summit's JD Project. Sun Summit has an exclusive option agreement with Eagle Plains

Resources Ltd. to earn up to a 100% interest in the project, located in the highly prospective

Toodoggone Mining District (for additional information on the Theory Project see the Company's press

release dated

October 22, 2025

Highlights:

New high-grade copper discovery: Saboteur Zone

3 km long trend of locally outcropping copper mineralization associated with coincident airborne

magnetic high transition zone and strong airborne radiometric potassic alteration anomaly.

15 rock samples collected returned over 1% copper.

Grab sample LSTHR040:

4.78% copper, 0.635 g/t gold, 49 g/t silver

Fred-DM-DMR Zone:

1.6 km x 3 km

area of widespread copper mineralization associated with barite veining.

Grab sample BLTHR051:

6.42% copper, 0.088 g/t gold, 99 g/t silver

Grab sample JBTHR008:

0.65% copper, 12.6 g/t gold, 3150 g/t silver

BEV Zone:

Broad copper soil and silt geochemical anomaly associated with multiphase hydrothermal

alteration.

Grab sample BLTHR029:

1.44% copper, 0.043 g/t gold, 12.8 g/t silver.

Table 1 2025 Rock Sample Highlights

Sample

Zone

Cu %

Au g/t

Ag g/t

BLTHR051

Fred/DM

6.42

0.088

99.0

JBTHR008

Fred/DM

0.65

12.60

3150.0

LSTHR040

Saboteur

4.78

0.635

48.6

JBTHR059

Saboteur

4.02

0.596

61.1

MHTHR037

Saboteur

3.27

4.290

121.0

JBTHR010

Bev-N

2.73

0.255

17.2

LSTHR020

Saboteur

2.8

0.0025

7.4

BLTHR029

Bev-Main

1.44

0.043

12.8

THTHR032

Bev-Main

0.1

0.169

0.3

"We are pleased to announce very exciting results from the 2025 Theory exploration program," said Niel

Marotta, CEO of Sun Summit Minerals. "The work confirms the strong high-grade copper-gold potential

at several of the known zones, and also at the newly defined Saboteur Zone, which likely hasn't seen

boots on the ground in more than 30 years. Mapping and sampling at the BEV zone has established

significant scale potential which remains open in all directions across the corridor. More fieldwork is

warranted in the 2026 exploration season to define future drill targets, and we look forward to continuing

to work with Eagle Plains and Terralogic as we advance the Theory Project towards its first-ever

inaugural drill campaign."

2025 Exploration Program

The 2025 exploration goals at the Theory Project were to identify and assess new areas of interest and

to refine drill targets generated through integrating historical exploration data with new geophysical and

geochemical surveys. Eagle Plains and Sun Summit commissioned TerraLogic Exploration Inc. of

Cranbrook, BC.

to design and execute the 2025 satellite (remote sensing) data acquisition, and field

program.

2025 work included:

Data Compilation with rectification and analysis of historical surface sampling and reconnaissance

mapping.

Remote Sensing Acquisition of district-and property-scale datasets, focusing on VNIR and SWIR

bands to identify mineral groups diagnostic of epithermal and porphyry alteration.

Field Program consisting of prospecting, detailed geological mapping, and systematic rock, soil,

and silt geochemical sampling on targets identified through data analyses.

Ground truthing of anomalies generated through airborne geophysical and remote sensing surveys

directly resulted in the Saboteur discovery, a multi kilometer scale zone of copper mineralization.

Advanced petrographic analyses, combined with field mapping of extensive hydrothermal

alteration zones and copper-gold-silver geochemical anomalies indicates the presence of a

proximal buried porphyry system.

A total of 258 rock grab samples,

417 soil samples and 40 silt samples were collected and select

samples were sent for petrographic analyses and interpretation.

Comprehensive data interpretation and analyses is underway to define and prioritize targets for 2026

fieldwork and detailed IP geophysical surveys to generate and refine targets for future

diamond drill

testing.

Field Results

All primary targets of interest were prospected and geologically mapped and sampled. Most targets are

underlain by mafic volcanic sequences of the Takla Group, with Jurassic aged Hazelton Group

intermediate and mafic volcanics and related sediments encountered at the Stik, DAR and southernmost

Bev areas. The volcanic stratigraphy is mostly homoclinal at scale of 100's to 1000+ meters, with shallow

dips (15-35°) towards the N or NE the most common, such that a layer-cake stratigraphy approximates

the general structural layout of the property - a pattern that is also evident in the airborne RTP magnetics.

Many mineralized veins and fractures exploit bedding parallel structures, but there are also a significant

number of steep mineralized structures with NE and NW strikes, with smaller subsets of E or N striking

veins and fractures.

The Takla group stratigraphy comprises a repetitive sequence of fine mafic tuff, feldspar ± pyroxene

crystal tuff with some pillow basalt, trachyitic basalt, and crystal-lithic lapilli ± bomb proximal vent basalts.

More mapping is required to establish the detailed relationship between mineralized structures and

volcanic stratigraphy.

The most common mineralized structures, comprise copper minerals (chalcopyrite, bornite, chalcocite)

with lesser to equal proportions of pyrite or pyrrhotite, and associated malachite and azurite, in quartz-

carbonate-epidote gangue. Azurite intensity appears coincident with presence of bornite and/or

chalcocite. Wall rocks are usually moderately to strongly epidote-carbonate ± hematite altered, with,

variable but commonly, high magnetics that is more a function of primary lithology (fine mafic tuffs are

commonly the most magnetic). Barite veins are commonly spatially associated with these copper

mineralized structures.

At the Bev showing, gossans are widespread with large zones ranging 10's to over 100 meters. A

quartz-sericite-pyrite (QSP) alteration-mineralization assemblage is typical of the gossans, and finely

disseminated. The QSP alteration generally obscures protolith textures, but certainly does transcend

lithological boundaries, having relatively steep orientation rather than being bedding parallel. Veining in

this zone is quartz-pyrite ± sericite dominant.

Table 2 2025 Rock Sample Results - Summary Statistics

2025 Theory

Rocks All

ppb

ppm

Count

258

Minimum

2.5

0.1

2.1

0.12

0.8

0.07

0.01

Maximum

12600

10000

285

64200

404

5570

980

39900

3150

Mean

127.3

925.3

18.7

3940.9

4.2

86.0

8.3

305.5

21.0

Median

5.5

575

8.2

296

0.86

1.64

93.5

0.47

Std Dev.

843.6

1120.6

38.9

8875.0

25.8

411.0

62.4

2499.1

197.6

75 percentile

25.25

1192.5

14.8

3252.5

1.9725

3.1325

160.25

3.6975

90 percentile

149.8

2241

33.09

11365

4.652

104.05

8.426

245.3

21.38

95 percentile

471

3003.5

77.93

25625

13.4625

436.15

17.06

431.85

61.12

99 percentile

2673.4

5668.1

243.84

50629

49.309

1978.4

135.84

2887.85

219.85

Saboteur Zone (Figures 2 and 3)

The newly discovered Saboteur Zone is defined by a 3 km long NE trending magnetic high with

consistent copper mineralization (chalcopyrite, bornite and chalcocite) associated with epidote-quartz-

carbonate veins and fractures. Highlights include grab samples LSTHR040 with

4.7% copper, 0.635 g/t

gold, 49 g/t silver

; JBTHR059 with

4.0% copper, 0.596 g/t gold, 61 g/t silver

; and MHTHR037 with

3.3% copper, 4.290 g/t gold, 121 g/t silver

Grab samples from the adjacent Provocateur and BEV-N targets include LSTHR020 with

2.8% copper,

0.0025 g/t gold, 7.4 g/t silver

; and (Bev-N): JBTHR010 with

2.73% copper, 0.255 g/t gold, 17.2 g/t

silver

Soil samples collected on Saboteur peak returned a maximum of

2.61% copper, 0.410 g/t gold, and

10.4 g/t silver

(MHTHD130).

BEV Zone (Figures 2 and 3)

The best grab sample from the BEV-main zone returned

1.44% copper, 0.043 g/t gold, 12.8 g/t silver

(BLTHR029). Soil and stream-silt results from this main drainage at the Bev zone returned some of the

best geochemical results of the 2025 program, defining a multi-element copper dominant geochemical

anomaly approximately 1 km x 700 meter, open in three directions. Detailed geological mapping in the

BEV area defined a broad zone of multiphase alteration associated with copper mineralization in

epidote-quartz-carbonate veins, and peripheral quartz-sericite-pyrite (QSP) altered gossans, highlighting

the possibility of a large buried porphyry system.

FRED-DM-DMR Zone (Figures 2 and 3)

Prospecting at the Fred-DM area focused on an approximately 5 km linear magnetic high-low transition

zone. Copper mineralization in veins and fractures are associated with NNE trending barite veins, up to

4m in width, that are exposed over 150-meter length. Grab samples from Fred-DM corridor returned the

highest values from the 2025 program. Highlight samples include BLTHR051 with

6.42% copper, 0.088

g/t gold, 99 g/t silver

; and JBTHR008 with

0.65% copper, 12.6 g/t gold, 3,150 g/t silver

. Soil

sampling and prospecting indicate that the strike length of the barite mineralization exceeds over 1

kilometer.

STIK 1

Fieldwork at the STIK1 identified epithermal style alteration and mineralization within a granodioritic to

dioritic intrusion, as well as in metasediments along the intrusive contact.

Petrographic Results and Interpretation

Twelve select samples were prepared by Precision Petrographics of Vancouver BC for thin section

analyses and interpretation. The petrographic work identified strong epidote-chlorite-carbonate

alteration directly associated with hypogene copper mineralization (chalcopyrite - bornite - chalcocite).

This type of mineralization and alteration assemblage is interpreted to represent the inner shell of a

porphyry system, which may indicate a proximal source for some of the Theory mineralization.

Next Steps

Planning is now underway for a significant exploration program across the Theory Project in 2026.

Details of the program will be released once targets ranks are prioritised and all new analytical data

have been interpreted. A priority focus will be on the BEV to Saboteur trend of strong copper

mineralization.

Table 3 Significant 2025 Silt Sample Results

Sample_#

Sample

Ag_ppm

Au_ppb

Cu_ppm

Mo_ppm

MHTHS007

Silt

0.40

84.30

1385

20.5

MHTHS008

Silt

0.67

25.60

986

1.1

JBTHS005

Silt

0.38

60.50

954

12.2

LSTHS004

Silt

0.37

48.70

826

7.7

MHTHS009

Silt

0.96

49.60

382

1.3

Table 4 Significant 2025 Soil Sample Results

Sample_#

Sample

Ag_ppm

Au_ppb

Cu_ppm

Mo_ppm

MHTHD130

Soil

10.50

410.00

26100

0.9

MHTHD011

Soil

0.82

21.60

833

0.8

MHTHD058

Soil

0.47

12.60

798

2.4

MHTHD034

Soil

0.25

3.20

794

0.8

MHTHD009

Soil

0.17

11.20

749

0.5

MHTHD068

Soil

0.81

14.80

634

1.3

Figure 1.

Map of the Toodoggone District showing the location of the Theory Project in relation to the

Company's flagship JD Project and other development and exploration projects. Data sourced from

Thesis Gold Inc., TDG Gold Corp. and Centerra Gold Inc.'s respective corporate websites. The QP

has been unable to verify the information and the information is not necessarily indicative to the

mineralization on the property that is the subject of the disclosure.

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

https://images.newsfilecorp.com/files/6142/281045_a0b3ebbdf424dab2_002full.jpg

Figure 2.

Highlighted sample locations and values by Zone at the Theory Project.

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

https://images.newsfilecorp.com/files/6142/281045_a0b3ebbdf424dab2_003full.jpg

Figure 3

. Cu results at the Theory Project.

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

https://images.newsfilecorp.com/files/6142/281045_a0b3ebbdf424dab2_004full.jpg

Figure 4

. Au results at the Theory Project

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

https://images.newsfilecorp.com/files/6142/281045_a0b3ebbdf424dab2_005full.jpg

Quality Assurance and Quality Control

Rock and soil/silt samples collected during the 2025 surface program were submitted to ALS

Geochemistry in North Vancouver, BC - an ISO/IEC 17025-accredited laboratory. Samples were sealed

in the field, stored securely, and transported by Terralogic personnel to maintain chain of custody.

Analytical methods for rocks included full multi-element characterization by four acid digestion with ICP

finish (ALS method ME-MS61). Gold was analyzed by 30 g fire assay with AAS finish (ALS method Au

AA23). Samples returning >10 g/t Au were re assayed using fire assay with gravimetric finish (ALS

method Au GRA21). Soils and silts were analyzed via full multi-element characterization by ICP ultra-

trace analysis on aqua-regia digestion (ALS package: ST43-PKG). The ST43-PKG includes ICP

method ME-MS41, plus supertrace gold analysis on a larger 25g aliquot. ALS used a number of internal

gold and copper standards all of which passed ALS internal screening.

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