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Group Ten Metals Provides Exploration Update and Advances Potential for Low-Carbon Battery and Platinum Group Metals at Stillwater West PGE-Ni-Cu-Co + Au Project in Montana, USA

Exploration Programs

TSX.V: PGE

OTCQB: PGEZF

FSE: 5D32

904 - 409 Granville Street, Vancouver, British Columbia, Canada V6C 1T2

Group Ten Metals Provides Exploration Update and Advances Potential for Low-Carbon Battery and

Platinum Group Metals at Stillwater West PGE-Ni-Cu-Co + Au Project in Montana, USA

September 23, 20 21 – Vancouver, BC - Group Ten Metals Inc. (TSX.V: PGE; US OTCQB : PGEZF; FSE: 5D32) (the

“Company” or “Group Ten”) is pleased to provide an update on resource modeling and exploration activities, and

further announces that it has engaged researchers at the University of British Columbia to study the potential for

large-scale carbon sequestration at its flagship Stillwater West PGE-Ni-Cu-Co + Au project in Montana, USA.

Exploration Update

SGS Geological Services has completed their site visit and is working with Group Ten to deliver inaugural National

Instrument 43-101-compliant mineral resource estimates at the most advanced target areas at Stillwater West. Block

models consisting of drill-defined nickel and copper sulphide mineralization, enriched in palladium, platinum,

rhodium, gold and cobalt, are now being finalized for release in the near term. In addition to the more advanced

Chrome Mountain, Camp, and Iron Mountain target areas, the inaugural resource figures will include the Crescent

target area following successful expansion of the block models based on the continuity of mineralization observed in

all target areas.

Diamond drilling is ongoing, with one rig at the Chrome Mountain target area and a second that completed priority

holes at the Camp target area before moving to the Iron Mountain are a. A total of twelve holes have been drilled to

date. Conditions are f avorable and the program is expected to continue into October. Expansion of the inaugural

mineral resource estimate is one of the primary objectives of the 2021 drill campaign.

An Induced Polarization geophysical survey is now underway with crews currently working new survey lines to the

west of the highly successful 2020 survey in the Chrome Mountain target area. In-fill lines, and additional extension

lines off the east end of the previous work at the Crescent target area, are also planned.

Figures 1 and 2 – Group Ten geologists John Bailey, Justin Modroo, and Nate Nelsen examine Stillwater West drill core.

Carbon Sequestration and the Potential for Low-Carbon ‘Green’ Metals at Stillwater West

The Company has engaged Dr. Greg Dipple and his team at the University of British Columbia, Canada, for a second

phase of research to assess the capacity to use mineral carbonation to bind carbon dioxide for permanent disposal as

part of a potential mining operation at Stillwater West . Preliminary work has shown good potential based on the

presence of certain minerals at Stillwater West. This next phase of study is expected to refine and advance that work

by identifying specific minerals in rock samples while beginning to look at possible reaction rates, among other items.

Contingent upon the success of the current program, subsequent work would then examine reaction rates and other

TSX.V: PGE

OTCQB: PGEZF

FSE: 5D32

904 – 409 Granville Street, Vancouver, British Columbia, Canada V6C 1T2

factors in more detail to culminate in large -scale pilot demonstration to provide data necessary for full -scale

projections and inclusion in potential broader engineering studies at Stillwater West.

Group Ten President and CEO, Michael Rowley, stated, “ We see the potential to reduce atmospheric carbon dioxide

while provid ing needed battery, catalytic, and precious metals at a large scale in a premier US district as a very

compelling opportunity to play a significant role in promoting global sustainability initiatives . Stillwater West hosts

nickel sulphide mineralization which, compared to the laterite nickel that dominates global production , has been

shown to more easily refine to the high-grade nickel sulphate that is required by the battery industry, and with a much

lower environmental footprint. This new study paves the way for further reductions in the carbon footprint for all our

commodities in a possible production scenario at Stillwater Wes t, offsetting t he impact of mining activities and

potentially even achieving significant reductions wherein the uptake and disposal of carbon exceeds the emission from

operations. In addition to being strongly aligned with Group Ten’s Environmental, Social and Governance (“ESG”)

guidelines and principles, the incorporation of carbon uptake may bring financial benefits via initiatives such as t he

45Q Tax Credit for Carbon Oxide Sequestration that is now in place in the US. We look forward to further

announcements including our inaugural resource estimates in the near term.”

‘Green’ Metals at Stillwater West

The primary metals that are essential to global electrification and improvements in air quality include battery metals,

such as nickel, copper, and cobalt, and platinum, which is essential for the low-carbon production of hydrogen via the

electrolysis of water, and also for the consumption of hydrogen in fuel cells.

Moreover, platinum - along with palladium and rhodium - is also essential to environmental quality as all three are

used in catalytic convertors to reduce exhaust emissions and provide clean air, with demand driven by increasingly

stringent emissions requirements globally.

Group Ten has demonstrated world-class potential for both scale and grade of all six of these commodities, plus also

gold, in five priority target areas where d rill-defined mineralization show ing strong correlation s with very large

geophysical anomalies across 9.2 kilometers in 3D model results, and more broadly in early-stage results across the

entire 32-kilometer span of the Stillwater West project.

The Stillwater district is a prolific US mining district that hosts world -class mines and a smelter- refinery complex

operated by Sibanye-Stillwater, who are widely recognized for producing palladium and platinum, along with lesser

amounts of other commodities including nickel, at the highest environmental and sustain ability standards. Group

Ten’s location adjacent to Sibanye is very favorable to potential end -users including the domestic auto industry. The

Company is focused on advancing Stillwater West as one of only a few projects in North America that may be able to

help meet the shortfalls projected by analysts and EV industry leaders f or environmentally responsible production of

our target commodities.

About Stillwater West

The Stillwater West PGE-Ni-Cu-Co + Au project positions Group Ten as the second-largest landholder in the Stillwater

Complex, adjoining and adjacent to Sibanye-Stillwater’s Stillwater, East Boulder, and Blitz PGE mines in south-central

Montana, USA1. The Stillwater Complex is recognized as one of the top regions in the world for PGE-Ni-Cu-Co

mineralization, alongside the Bushveld Complex and Great Dyke in southern Africa, which are similar layered

intrusions. The J-M Reef, and other PGE-enriched sulphide horizons in the Stillwater Complex, share many similarities

with the highly prolific Merensky and UG2 Reefs in the Bushveld Complex. Group Ten’s work in the lower Stillwater

Complex has demonstrated the presence of large-scale disseminated and high-sulphide battery metals and PGE

mineralization, similar to the Platreef in the Bushveld Complex2. Drill campaigns by the Company, complemented by

a substantial historic drill database, are driving 3D models of Platreef-style mineralization in the five most advanced

target areas, three of which are expected to become formal mineral resources by mid-2021. Multiple earlier-stage

Platreef-style and reef-type targets are being advanced across the rest of the 31-kilometer length of the project based

on strong correlations seen in soil and rock geochemistry, geophysical surveys, geologic mapping, and drilling.

About Group Ten Metals Inc.

Group Ten Metals Inc. is a TSX-V-listed Canadian mineral exploration company focused on the development of high-

quality platinum, palladium, nickel, copper, cobalt, and gold exploration assets in top North American mining

jurisdictions. The Company’s core asset is the Stillwater West PGE-Ni-Cu-Co + Au project adjacent to Sibanye-

TSX.V: PGE

OTCQB: PGEZF

FSE: 5D32

904 – 409 Granville Street, Vancouver, British Columbia, Canada V6C 1T2

Stillwater’s high-grade PGE mines in Montana, USA. Group Ten also holds the high-grade Black Lake-Drayton Gold

project adjacent to Treasury Metals’ development-stage Goliath Gold Complex in northwest Ontario, and the Kluane

PGE-Ni-Cu-Co project on trend with Nickel Creek Platinum‘s Wellgreen deposit in Canada‘s Yukon Territory.

About the Metallic Group of Companies

The Metallic Group is a collaboration of leading precious and base metals exploration companies, with a portfolio of

large, brownfield assets in established mining districts adjacent to some of the industry’s highest-grade producers of

silver and gold, platinum and palladium, and copper. Member companies include Metallic Minerals in the Yukon’s

high-grade Keno Hill silver district and La Plata silver-gold-copper district of Colorado, Group Ten Metals in the

Stillwater PGM-nickel-copper district of Montana, and Granite Creek Copper in the Yukon’s Minto copper district. The

founders and team members of the Metallic Group include highly successful explorationists formerly with some of the

industry’s leading explorers/developers and major producers. With this expertise, the companies are undertaking a

systematic approach to exploration using new models and technologies to facilitate discoveries in these proven, but

under-explored, mining districts. The Metallic Group is headquartered in Vancouver, BC, Canada, and its member

companies are listed on the Toronto Venture, US OTC, and Frankfurt stock exchanges.

Note 1: References to adjoining properties are for illustrative purposes only and are not necessarily indicative of the exploration potential, extent, or nature

of mineralization or potential future results of the Company’s projects.

Note 2: Magmatic Ore Deposits in Layered Intrusions—Descriptive Model for Reef-Type PGE and Contact-Type Cu-Ni-PGE Deposits, Michael Zientek, USGS

Open-File Report 2012–1010.

FOR FURTHER INFORMATION, PLEASE CONTACT:

Michael Rowley, President, CEO & Director

Email: [email protected] Phone: (604) 357 4790

Web: http://grouptenmetals.com Toll Free: (888) 432 0075

Forward-Looking Statements

Forward Looking Statements: This news release includes certain statements that may be deemed "forward-looking statements". All statements in this

release, other than statements of historical facts including, without limitation, statements regarding potential mineralization, historic production,

estimation of mineral resources, the realization of mineral resource estimates, interpretation of prior exploration and potential exploration results, the

timing and success of exploration activities generally, the timing of the timing and results of future resource estimates, permitting time lines, metal prices

and currency exchange rates, availability of capital, government regulation of exploration operations, environmental risks, reclamation, titlefuture driling

actiivities and the locations of such drilling, and future plans and objectives of the company are forward-looking statements that involve various risks and

uncertainties. Although Group Ten believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such

statements are not guarantees of future performance and actual results or developments may differ materially from those in the forward-looking

statements. Forward-looking statements are based on a number of material factors and assumptions. Factors that could cause actual results to differ

materially from those in forward-looking statements include failure to obtain necessary approvals, unsuccessful exploration results, changes in project

parameters as plans continue to be refined, results of future resource estimates, future metal prices, availability of capital and financing on acceptable

terms, general economic, market or business conditions, risks associated with regulatory changes, defects in title, availability of personnel, materials and

equipment on a timely basis, accidents or equipment breakdowns, uninsured risks, delays in receiving government approvals, unanticipated environmental

impacts on operations and costs to remedy same, and other exploration or other risks detailed herein and from time to time in the filings made by the

companies with securities regulators. Readers are cautioned that mineral resources that are not mineral reserves do not have demonstrated economic

viability. Mineral exploration and development of mines is an inherently risky business. Accordingly, the actual events may differ materially from those

projected in the forward-looking statements. For more information on Group Ten and the risks and challenges of their businesses, investors should review

their annual filings that are available at www.sedar.com.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts

responsibility for the adequacy or accuracy of this release.