Sun Summit Minerals Corp.

10/19/2026

📢 NEWS: Sun Summit Receives Positive Metallurgical Test Results for the JD Project

Sun Summit is pleased to report positive metallurgical test results demonstrating gold recoveries of up to 99% from the JD Project, Toodoggone Mining District, north-central British Columbia.

"Initial metallurgical test results from both the Creek and Finn Zone composites demonstrate high recoveries and grades, highlighted by exceptional gold performance. The conventional Gravity-Leach flowsheet achieved outstanding gold recoveries ranging from 89% to 98%, while an optimized Gravity-Float-Leach procedure demonstrated total gold extraction of 100%. Importantly, these results show a large percentage of gravity recoverable gold. Further, these results, utilizing blended composites from potential mining areas, establish a rigorous technical framework as we advance toward our inaugural Mineral Resource Estimate anticipated in Q1 2027." — Niel Marotta, CEO, Sun Summit Minerals Corp.

These results are an important step forward for the JD Project, supporting the ongoing advancement toward an inaugural Mineral Resource Estimate targeted for Q1 2027.

🔗 Full news release: https://sunsummitminerals.com/sun-summit-receives-positive-metallurgical-test-results-for-the-jd-project/

TSX-V: SMN | OTCQB: SMREF

10/14/2026

📍 Sun Summit Minerals at the Hidden Gems Conference — New York City, October 19–20

CEO Niel Marotta will be in New York City on October 19–20 participating in 1x1 investor meetings at the Hidden Gems Conference.

With additional assay results from our 16,000+ metre 2026 drill program expected in the coming weeks, and an inaugural Mineral Resource Estimate targeted for Q1 2027, there is plenty to discuss as Sun Summit advances the JD Project in BC's Toodoggone District.

🔗 Conference info: https://www.meetmax.com/sched/event_135433/conference_home.html?

TSX-V: SMN | OTCQB: SMREF

10/09/2026

ICYMI | 📰 NEWS — Sun Summit Drills 23.5 Metres of 4.35 g/t Gold Including 4.50 Metres of 21.8 g/t Gold at the JD Project; Extends Creek Zone Mineralization 100 Metres Along Strike

The new drill results, together with 2024 and 2025 data, provide additional support for grade continuity within the Creek Zone. Once results from the remaining 8 Creek Zone holes are returned, the geological, structural, and mineralization domain models will be updated in preparation for an inaugural Mineral Resource Estimate anticipated for Q1 2027.

Key highlights from the Creek Zone holes:

• CZ-26-023 — 23.5 m of 4.35 g/t Au and 4.69 g/t Ag from 109.0 m down hole including 4.50 m of 21.8 g/t Au and 20.18 g/t Ag

• CZ-26-032 — 32.5 m of 3.02 g/t Au and 2.53 g/t Ag from 139.0 m down hole including 7.57 m of 12.15 g/t Au and 9.24 g/t Ag

• CZ-26-031 — 26.6 m of 3.23 g/t Au and 11.62 g/t Ag from 138.3 m down hole including 2.17 m of 10.58 g/t Au and 6.51 g/t Ag

• CZ-26-029 — 24.0 m of 1.81 g/t Au and 2.55 g/t Ag from 126.0 m down hole

Results from 8 remaining Creek Zone holes, 19 Finn Zone holes, and 15 Schmitt Zone holes are still pending and will be released following receipt, verification, and interpretation.

Revisit the October 6th news release:
🔗 https://sunsummitminerals.com/sun-summit-drills-23-5-meters-of-4-35-g-t-gold-including-4-50-meters-of-21-8-g-t-gold-at-the-jd-project/

TSX-V: SMN | OTCQB: SMREF

10/06/2026

📢 Sun Summit Reports Initial Assay Results from the Creek Zone — JD Project, Toodoggone District, BC

Sun Summit is pleased to report assay results from the first 13 drill holes at the Creek Zone, part of its 2026 drill program at the JD Project.

Drilling successfully extended high-grade and bulk-tonnage gold-silver mineralization approximately 100 metres along strike to the northwest, where it remains open.

Highlights:

⛏️ CZ-26-023 — 23.5 meters of 4.35 g/t Au and 4.69 g/t Ag from 109.0 meters down hole including 4.50 meters of 21.8 g/t Au and 20.18 g/t Ag

⛏️ CZ-26-032 — 32.5 meters of 3.02 g/t Au and 2.53 g/t Ag from 139.0 meters down hole including 7.57 meters of 12.15 g/t Au and 9.24 g/t Ag

⛏️ CZ-26-031 — 26.6 meters of 3.23 g/t Au and 11.62 g/t Ag from 138.3 meters down hole including 2.17 meters of 10.58 g/t Au and 6.51 g/t Ag

⛏️ CZ-26-029 — 24.0 meters of 1.81 g/t Au and 2.55 g/t Ag from 126.0 meters down hole

All reported holes intersected gold-silver mineralization, with results demonstrating strong grade continuity and confirming the main vein-controlling structures extend beyond the limits of previous drilling.

Assay results from the remaining 8 Creek Zone holes, 19 Finn Zone holes, and 15 Schmitt Zone holes will be released following receipt, verification, and interpretation.

"Our third drilling campaign at the Creek Zone clearly demonstrates the scale of the mineralized hydrothermal system and, importantly, gives us a clear path toward expanding the zone. The scale and intensity of alteration encountered across our drilling are highly encouraging for the style of epithermal system we are systematically testing. This work continues to demonstrate strong grade continuity across drill fences, building confidence that the mineralization remains open along strike and is consistent with previous results. These findings will help refine our geological model and inform our upcoming Mineral Resource Estimate planned for Q1 2027. We expect to receive the balance of the Creek Zone, Finn Zone and Schmitt Zone assays over the coming weeks and will provide updates as they become available."

— Niel Marotta, CEO, Sun Summit Minerals Corp.

🔗 Full news release:
https://sunsummitminerals.com/sun-summit-drills-23-5-meters-of-4-35-g-t-gold-including-4-50-meters-of-21-8-g-t-gold-at-the-jd-project

TSX-V: SMN | OTCQB: SMREF

09/30/2026

September 30 marks the National Day for Truth and Reconciliation.
Today, we pause to honor the children who never returned home, the Survivors of residential schools, and the families and communities who carry the weight of this history. It is a day for remembrance, reflection, and listening — and a reminder that reconciliation is not a single moment, but an ongoing commitment.

Sun Summit Minerals is grateful to be working within the traditional territories of Indigenous Nations and peoples, and to be building relationships that we hope reflect genuine partnership. We are committed to walking that path together, learning, listening, and advancing our work collaboratively.

🧡 Every Child Matters.

09/29/2026

📢 NEWS | Sun Summit Completes 2026 Exploration Program at the Theory Copper-Gold Project — Toodoggone District, BC

Sun Summit has completed its planned three-phase 2026 field program at the Theory Project, capping off an exceptional season of exploration across the Toodoggone District.

The program included a 476 line-km MobileMT airborne survey, approximately 20 days of prospecting, geological mapping and geochemical sampling, and an IP geophysical survey over priority targets including the BEV and Saboteur zones.

Key discoveries from the 2026 program include two newly identified zones of copper mineralization — Baguette Peak and Misty Mountain — adding to the previously discovered Saboteur Zone, a 3 km zone of chalcopyrite, bornite, and chalcocite mineralization identified in 2025.

A total of 218 rock samples and 533 soil samples were collected in 2026. Geochemical and assay results are pending and will be reported after receipt and interpretation.

"Our successful three-phase exploration program at Theory, running alongside an aggressive 16,000-metre drill campaign at our flagship JD Project, caps off an exceptional season of operational ex*****on. Discovering widespread copper mineralization at the surface of newly discovered zones, backed by fresh ground IP and airborne MobileMT data, gives us a powerful toolkit to refine our targets and map out a historic, first-ever drilling campaign for 2027. We continue to unlock significant value at the highly under-explored Theory Project and look forward to updating the market as rock and soil results are received and interpreted." — Niel Marotta, CEO, Sun Summit Minerals Corp.

All results will be used to identify and prioritize targets for a planned inaugural drill campaign at Theory in 2027.

🔗 Full news release:
https://sunsummitminerals.com/sun-summit-minerals-announces-completion-of-exploration-at-the-theory

TSX-V: SMN | OTCQB: SMREF

09/28/2026

🎥 Field Notes Episode #8 — JD Emerges: The Next Prize in the Toodoggone Gold Camp

We're pleased to share the latest episode of Field Notes with Brian Leni of Junior Stock Review, filmed during his visit to Sun Summit's JD Project in BC's Toodoggone District this past August.

Brian spent time on the ground reviewing core, walking the property, and speaking with the team — getting a firsthand look at what has been an exceptional 2026 field season.

Highlights from the episode include:
▪️ Sun Summit's 16,000+ metre 2026 drill program across the Creek, Finn, and newly tested Schmitt zones
▪️ The Toodoggone as one of Canada's most active gold exploration districts
▪️ The JD Project's path toward an inaugural Mineral Resource Estimate targeted for Q1 2027

🎥 Watch the full episode:
https://www.youtube.com/watch?v=PkMYwKxXd2k

TSX-V: SMN | OTCQB: SMREF

In this Episode of Field Notes, Brian travels to Smithers, BC (Tood...

09/23/2026

📸 Full Steam Ahead at the JD Project — Cutting Core and Working Through the Backlog

Expanding the 2026 drill program by 60% means over 6,000 extra meters of core to process — and the team is working through it.

With 55 holes and 16,000+ meters completed across the Creek, Finn, and Schmitt zones, the largest single-season drill program in company history, the focus has now shifted to cutting core, processing samples, and getting results to the lab.

Assay results will be released as they are received, reviewed, and interpreted.

Inaugural MRE targeted for Q1 2027.

🔗Revisit the Sep 15 news:
https://sunsummitminerals.com/sun-summit-completes-over-16000-meters-of-drilling-at-the-jd-project/

TSX-V: SMN | OTCQB: SMREF

09/18/2026

📸 Independent Qualified Person Site Visit at the JD Project — Toodoggone District, BC

Sun Summit was pleased to welcome Jacob Anderson, CPG of Dahrouge Geological Consulting USA Ltd. to the JD Project last week.

🔬Dahrouge USA was engaged in May 2026 to complete the inaugural Mineral Resource Estimate for the JD Project. Jacob's site visit is an important step in the MRE process, allowing the qualified person to review drill core and validate the project database and 3D geological domains firsthand.

The 2026 drill program, the largest single-season program ever completed at JD, included:

⛏️ Creek Zone — 21 holes for approximately 7,300 metres

⛏️ Finn Zone — 19 holes for approximately 5,300 metres

⛏️ Schmitt Zone — 15 holes for approximately 3,200 metres, investigating the western extent of Finn Zone-style gold-silver mineralization. Every hole intersected mineralization, with results anticipated to add meaningful scope to the MRE.

Results from 2024, 2025, and the recently completed 2026 drill program, together with historical drilling on the property, are expected to inform Sun Summit's inaugural Mineral Resource Estimate at the JD Project, targeted for Q1 2027.

🔗 Revisit the Sep 15 news release:
https://sunsummitminerals.com/sun-summit-completes-over-16000-meters-of-drilling-at-the-jd-project/

TSX-V: SMN | OTCQB: SMREF

09/15/2026

📢 NEWS| Sun Summit Completes Over 16,000 Meters of Drilling at the JD Project, Toodoggone Mining District, B.C.

Sun Summit is pleased to announce the completion of its 2026 exploration drill program at the JD Project, the largest single-season drill program ever completed at JD, coming in at 60% more than originally planned.

Program summary — 55 holes, 16,000+ meters across three zones:

⛏️ Creek Zone: 21 holes for ~7,400 meters, following up 81.0 meters of 4.80 g/t gold including 34.0 meters of 9.07 g/t gold in CZ-25-021

⛏️ Finn Zone: 19 holes for ~5,400 meters, following up 17.0 meters of 2.31 g/t gold with 113.1 g/t silver including 6.0 meters of 5.30 g/t gold with 157.9 g/t silver in FZ-25-002

⛏️ Schmitt Zone: 15 holes for ~3,200 meters investigating the western extent of Finn Zone-style gold-silver mineralization. Every hole drilled at Schmitt intersected mineralization.

Assay results will be released as they are received, reviewed, and interpreted.

A metallurgical report from Fuse Advisors and Blue Coast Research is expected in early Q4 2026. An IP geophysical survey focused on the JD Porphyry Trend is set to commence shortly.

All results will contribute to an inaugural Mineral Resource Estimate targeted for Q1 2027.

"Completing 55 drill holes and over 16,000 meters of drilling across Creek, Finn, and the newly tested Schmitt Zone is a significant milestone for Sun Summit and for the JD Project. The results we saw from several western Finn Zone holes gave us the confidence to expand the program and put 15 additional holes into the Schmitt Zone. We are encouraged that every hole drilled in the Schmitt Zone intersected mineralization. We are now focused on receiving and reporting assay results through year-end, with our inaugural mineral resource estimates for Creek, Finn, and Schmitt targeted for Q1 2027. I want to thank our exploration team and field partners for their exceptional work this season. A perfect safety record of 3,300 person days with no lost time accidents and efficiency in the field is what allowed us to expand the program well beyond its original scope."
— Niel Marotta, CEO, Sun Summit Minerals Corp.

🔗 Full news release: https://sunsummitminerals.com/sun-summit-completes-over-16000-meters-of-drilling-at-the-jd-project

TSX-V: SMN | OTCQB: SMREF