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Sun Summit Commences Significant Drill Program at Buck; Targets Continuity of High- Grade Gold Mineralization

Exploration Programs

Sun Summit Commences Significant Drill

Program at Buck; Targets Continuity of High-

Grade Gold Mineralization

Vancouver, British Columbia--(Newsfile Corp. - September 28, 2021) - Sun Summit Minerals Corp.

(TSXV: SMN) (OTCQB: SMREF) ("Sun Summit" or the "Company") is pleased to announce that it has

commenced a new phase of drilling at its 100% controlled Buck Property, central British Columbia. Two

drill rigs are currently on site, and another rig may be added later, dependent on availability.

Highlights

Build on high-grade gold discovery

: Sun Summit will systematically investigate the structural

controls and spatial distribution of high-grade gold intersected in multiple holes in early 2021,

stepping out around the Trench Zone area (e.g., 31.6 grams per tonne (g/t) gold over 4.0 metres

including 246 g/t gold over 0.5 metres; BK21-020, see SMN news release dated

May 11

th

, 2021

).

Expand footprint of near-surface, bulk tonnage-style gold:

Sun Summit will also focus on

delineating and expanding the size and trend of bulk tonnage-style gold mineralization intersected

in numerous holes in 2020 and early 2021 in the Horseshoe Zone area (e.g., 1.07 g/t gold over

109 metres including 7.17 g/t gold over 5.2 metres; BK21-017, see SMN news release dated

May

11

th

, 2021

).

Over 30 drill holes are planned in this initial phase of drilling:

Two diamond drill rigs are on

site; one initially focused on the Trench Zone and one initially focused on the Horseshoe Zone.

Test new targets:

Numerous additional targets within and outside of the open-ended, 900 metre

by 950 metre mineralized system (see SMN news release dated

July 6

th

, 2021

) will also be tested.

Holes drilled in these targets will be in addition to the 30 plus holes to be drilled in the Trench and

Horseshoe zones.

Bob Willis, Sun Summit's CEO, stated,

"We are excited to commence this significant phase of drilling at our Buck property. Based on

encouraging results from earlier this year we have gained considerable insight into property-scale

structural controls on widespread gold and silver mineralization at Buck."

"This next phase of drilling will test these new structural models by focusing on local controls considered

to be important for the distribution of high-grade gold mineralization. We have designed a series of drill

holes to systematically test the extent and potential of the Trench and Horseshoe zones. These holes, as

well as possible wider step-out holes, could exceed 12,000 metres of drilling. This drill phase is open

ended and can be expanded based on ongoing results."

Drill Program

Over 30 drill holes are planned within a footprint of approximately 600 metres by 300 metres. The drill

program has three primary objectives:

1)

Investigate the extent and continuity of high-grade gold mineralization characteristic of

the Trench Zone.

All previous Trench Zone holes (e.g., 31.6 g/t gold over 4.0 metres including 246

g/t gold over 0.5 metres; BK21-020, see SMN news release dated

May 11

th

, 2021

) were designed

based on results from discovery hole BK20-012 (5.86 g/t gold over 17 metres including 23.05 g/t gold

over 3.0 metres; see SMN news release dated

January 5

th

, 2021

). Updated modelling has defined

broad northwest trends to high-grade gold mineralization within the target area. New drill holes, all

with northeast oriented azimuths, are designed to systematically test these trends for continuity of

mineralization. Tightly-spaced step-out holes peripheral to areas of known mineralization together

with wider-spaced step-out holes along and across trends will be completed. Twenty four drill holes

are initially designed for the Trench Zone.

2)

Investigate the strike-extent of near surface, bulk-tonnage gold mineralization

characteristic of the Horseshoe Zone.

All previous holes in the Horseshoe Zone hit near-

continuous, broad zones of breccia-hosted and disseminated gold mineralization (e.g., 1.13 g/t gold

equivalent over 87 metres within 0.52 g/t gold equivalent over 409 metres; BK21-033; see SMN news

release dated

July 6

th

, 2021

). The zones are unconstrained, and modelling suggests further drilling is

warranted to define the extent of bulk-tonnage mineralization. All new drill holes are designed to test

the extent of, and the structural relationship between the two key styles of gold mineralization

observed within the Horseshoe Zone, being (1) sphalerite-rich sulfide-cemented hydrothermal

'mosaic' breccias (e.g., 1.04 g/t gold over 46 metres including 3.76 g/t gold over 5.7 metres; BK20-

006; see SMN news release dated

January 5

th

, 2021

) and, (2) disseminated throughout volcanic

breccias (e.g., 0.58 g/t gold over 127.2 metres; BK20-001; see SMN news release dated

May 12

th

,

2020

). Seven holes are initially planned in the Horseshoe Zone.

3)

Investigate the limits of the mineralized hydrothermal footprint.

Epithermal-related alteration

and mineralization has been intersected in drill holes covering a footprint of approximately 900 metres

by 950 metres, including below post-mineralization basalts (see SMN news release dated

July 6

th

,

2021

). The true extent of this footprint is unknown. Additional holes are designed to explore for new

mineralized centres within, and outside of the known footprint.

Exploration update

Property-wide exploration is ongoing (see SMN news release dated

August 4

th

, 2021

). Numerous soil-

geochemical grids and long property-scale soil transects have been completed totalling over 2,600

samples. Over 220 systematic rock-chip samples have also been collected from newly identified areas

of widespread hydrothermal alteration as well as targets identified from a thorough compilation of all

available historic exploration data. Soil and rock samples are currently in the lab and results will be

released once all data are received and have been interpreted. Management believes this work will yield

additional priority drill targets outside the Trench-Horseshoe area.

Buck Property

The ~33,000 hectare property is located approximately 12 kilometres south of Houston, British

Columbia, has excellent nearby infrastructure and allows for year-round road-accessible exploration.

National Instrument 43-101 Disclosure

This news release has been approved by Sun Summit's CEO, Robert D. Willis, P. Eng. 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 Property 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.

Health and Safety

The Company's exploration programs are being carried out in full compliance with federal, provincial,

and municipal guidelines established in response to the global COVID-19 pandemic. Sun Summit has a

rigorous infection prevention and control protocol in place to protect the health of employees and

contractors, as well as surrounding communities in which the Company works.

About Sun Summit

Sun Summit Minerals is an exploration company focused on expanding its epithermal gold discovery at

its flagship Buck Project located in north-central British Columbia.

The Company is exploring multiple high priority gold and silver targets through methodical, well-funded

exploration campaigns with year round drilling access. The Project has high-grade and bulk-tonnage

gold and silver potential and is located in a mining-established region that includes many former

operating mines and current exploration projects.

Sun Summit is committed to environmental and social responsibility with a focus on responsible

development to generate positive outcomes for all stakeholders.

Further details are available at

www.sunsummitminerals.com

For further information, contact:

Sharyn Alexander, M.Sc.

VP Technical Services

Nancy Curry

Corporate Communications

[email protected]

Tel. 778-588-9606

Forward-Looking Information

Statements contained in this news release that are not historical facts may be forward-looking

statements, which involve risks, uncertainties and other factors that could cause actual results to differ

materially from those expressed or implied by such forward-looking statements. Factors that could cause

such differences, without limiting the generality of the following, include: risks inherent in exploration

activities; volatility and sensitivity to market prices; volatility and sensitivity to capital market fluctuations;

the impact of exploration competition; the ability to raise funds through private or public equity financings;

environmental and safety risks including increased regulatory burdens; unexpected geological or

hydrological conditions; changes in government regulations and policies, including trade laws and

policies; failure to obtain necessary permits and approvals from government authorities; weather and

other natural phenomena; and other exploration, development, operating, financial market and regulatory

risks. Except as required by applicable securities laws and regulation, Sun Summit Minerals Corp.

(SMN) disclaims any intention or obligation to update or revise any forward-looking statement, whether

as a result of new information, future events or otherwise.

Neither the TSX Venture Exchange nor the Investment Industry Regulatory Organization of Canada

accepts responsibility for the adequacy or accuracy of this release.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/97768