Ms. Sharyn Alexander reports

SUN SUMMIT REPORTS RESULTS FROM RECONNAISSANCE DRILLING AT IRK AND EAGLE EYE; PROVIDES EXPLORATION UPDATE

Sun Summit Minerals Corp. has released results from its recent diamond drill program comprising 2,016 metres over nine diamond drill holes from the IRK and Eagle Eye targets on the Buck project, central British Columbia. Exploration drilling at IRK and Eagle Eye intersected broad zones of strong alteration with anomalous pathfinder element geochemistry and zones of anomalous zinc and silver values were intersected in most holes.

Highlights:

• IRK target: Seven holes for 1,430 metres were drilled at three locations at IRK, intersecting intense alteration and veining with visible sulphide mineralization and anomalous zinc and silver.
• Eagle Eye target: Drilling two drill holes for 586 metres, intersecting stringer pyrite associated with anomalous zinc and silver values.
• Property-wide exploration aimed at discovery: Crews have mobilized to site to begin a significant exploration program focused on high-priority targets in the company's expanding project area, including the recently acquired CR property (see June 1, 2023, news release).
• Drilling at Buck Main: Stepout drilling, focused on new zones of potential high-grade and bulk-tonnage mineralization, has commenced (see June 8, 2023, news release).

"Significant overburden cover at both the IRK and Eagle Eye targets has required us to prospect with the drill bit. Results from drilling indicate further work may be considered in these areas," stated Sharyn Alexander, Sun Summit's president. "Our property-wide exploration plan has now been expanded to cover not only recently staked ground, but also the CR property. Exploration areas are being prioritized based on very positive rock and soil precious metal sample results from our previous fieldwork, and our ability to get these targets to the drill-ready stage. Our pipeline of highly prospective targets, which are primarily gold and silver, represent the exploration upside of this emerging region. The Buck property sits in the centre of one of the best metal-endowed regions in central B.C."

Exploration drilling at Eagle Eye and IRK

Over 2,000 metres of diamond drilling was recently completed at the Eagle Eye and IRK target areas (see March 15, 2023, news release). Geochemical and lithological results from Eagle Eye and IRK drilling confirm the presence of strong hydrothermal-related alteration zones with anomalous pathfinder element geochemistry interpreted to represent buried epithermal-related systems.

Further work is required to better define vectors to potential high-grade vein sets. Correlation of stratigraphy across the Buck property has been improved from recent drilling at Buck Main, Eagle Eye and IRK. Drilling has led to an improved understanding of the controls on mineralization and will help to identify favourable host rock with potential economic mineralization on the Buck property.

IRK target

Seven holes for 1,430 metres were completed at IRK. The holes tested a north-south inferred structure defined by coincidental resistivity, chargeability and geochemical anomalies interpreted to be related to a large-scale porphyry system or epithermal vein system. Most holes collared in intense quartz plus sericite altered volcaniclastic andesite with broad zones of intrusion-related quartz veining/stockwork (see April 4, 2023, news release). Zones of anomalous zinc and spot silver values were intersected in most holes. Zinc appears to be associated with alteration intensity, whereas silver appears to be correlated with the presence of fine black sulphides.

Recent mapping and sampling at IRK have confirmed the previous interpretation of a large (greater than 1,000 hectares), strong multielement soil anomaly (silver-zinc-lead-arsenic-sulphur) with an overall northwest-southeast trend. Rock samples from this area returned results of up to 1.7 per cent Zn, 95 grams per tonne Ag and 2.4 per cent Cu (see April 4, 2023, news release).

Eagle Eye target

Drilling at Eagle Eye was designed to test a strong induced polarization chargeability anomaly target associated with mapped alteration that was inferred to potentially be associated with a mineralized porphyry system at depth. Two holes for 586 metres were completed at Eagle Eye, intersecting broad zones of stringer pyrite associated with quartz plus sericite altered quartz-feldspar-porphyry (QFP) dikes hosted in sedimentary rocks. The presence of pyrite in drilling explains the strong chargeability anomaly. Zones of anomalous zinc and spot silver values were also intersected.

Previous prospecting and mapping in the Eagle Eye area identified altered sedimentary rocks and hydrothermal breccias with sulphide mineralization. The 2022 VTEM (versatile time-domain electromagnetic) and magnetic survey delineated resistive zones around Eagle Eye, which were inferred to be associated with silica alteration within intrusive units. Recent mapping at Eagle Eye helped to better define a volcano-sedimentary unit intruded by unaltered granodiorites with associated zones of strong silica-sericite plus or minus pyrite alteration.

Quality assurance and quality control

All sample assay results have been monitored through the company's quality assurance/quality control (QA/QC) program. Drill core was sawn in half at Sun Summit's core logging and processing facility in Houston, B.C. Half of the core was sampled and shipped in sealed and secure bags to the ALS Global preparation facilities in Langley, B.C., by bonded courier. Samples were prepared using standard preparation procedures which involves crushing the entire sample until 70 per cent passes through two-millimetre screens. A 250-gram split is pulverized to better than 85 per cent passing a 75-micron screen.

Following sample preparation, the pulps were sent to the ALS Global analytical laboratory in North Vancouver, B.C., for analysis. ALS Global is registered to ISO/IEC 17025:2017 accreditations for laboratory procedures.

Core samples were analyzed for 33 elements by inductively coupled plasma atomic emission spectroscopy on a 0.25-gram sample using a four-acid digestion (method ME-ICP61). Gold was analyzed by fire assay on a 30-gram sample with an atomic absorption spectroscopy finish (method Au-AA23). Gold overlimit analysis is conducted by fire-assay fusion, gravimetric finish (Au_GRA21) on a 30-gram split when Au-AA23 return values greater than nine parts per million. Ag, Cu, Pb and Zn overlimit analyses are conducted using an ore-grade four-acid digest and ICP-AES analysis (ME-OG62). Ag analysis triggers overlimit analysis when ME-ICP61 returns values greater than 90 ppm. Cu, Pb and Zn trigger overlimit analysis when ME-ICP61 return values greater than 10,000 ppm.

In addition to ALS Global laboratory QA/QC protocols, Sun Summit implements a rigorous internal QA/QC program that includes the insertion of duplicates, standards and blanks into the sample stream prior to the sawn core being shied off site.

National Instrument 43-101 disclosure

This news release has been approved by Sun Summit's vice-president, exploration, Ken MacDonald, PGeo, a qualified person as defined in National Instrument 43-101 -- Standards of Disclosure for Mineral Projects of the Canadian Securities Administrators. He has also verified the data disclosed, including sampling, analytical and test data, underlying the technical information in this news release.

Community engagement

Sun Summit is engaging with first nations on whose territory the Buck project is located and is discussing their interests and identifying contract and work opportunities, as well as opportunities to support community initiatives. The company looks forward to continuing to work with local and regional first nations as the project continues.

About the Buck project

The Buck project is situated in a historic mining district near Houston, B.C., with excellent nearby infrastructure that allows for year-round, road-accessible exploration.

The project is host to the Buck Main intermediate sulphidation epithermal-related gold-silver-zinc system. Most of the mineralization drilled to date at Buck Main consists of long, continuous zones of disseminated and breccia-hosted, bulk-tonnage-style gold-silver-zinc. Vein-hosted, high-grade mineralization has also been intersected near the centre of Buck Main.

Exploration at the Buck project is focused on investigating the lateral and vertical extent of gold-silver-zinc mineralization at the Buck Main system, and to define additional drill targets across the entire land package through systematic exploration programs.

About Sun Summit Minerals Corp.

Sun Summit Minerals is a Canadian mineral exploration company focused on expansion and discovery of district-scale gold and copper assets in north-central British Columbia.

Sun Summit is committed to environmental and social responsibility, with a focus on accountable development and building respectful and beneficial relationships with indigenous and local communities.

We seek Safe Harbor.