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Transition Metals Defines Multiple Drill-Ready Copper Porphyry and Epithermal Gold-Silver Targets at Pike Warden 8.9 km IP survey completed over Copper Junction and Copper North areas. Additional mapping and mineralized samples collected: assays pending.

Exploration Programs

Transition Metals Defines Multiple Drill-Ready

Copper Porphyry and Epithermal Gold-Silver

Targets at Pike Warden

8.9 km IP survey completed over Copper Junction and Copper North areas.

Additional mapping and mineralized samples collected: assays pending.

Drill targets defined at four of the five target areas prospective for large Copper Porphyry

and Epithermal Gold-Silver +/- base metal systems.

Company planning to mobilize drill this fall.

Sudbury, Ontario--(Newsfile Corp. - September 9, 2025) - Transition Metals Corp. (TSXV: XTM)

("Transition" or "the Company") is pleased to report that targeting work completed during the Summer

2025 field season has outlined 17 drill ready targets across 4 of the 5 mineralized prospective areas

previously identified at its 100% optioned Pike Warden Project in Southern Yukon. Work to Date has

outlined the potential for both large copper porphyry and epithermal gold-silver systems on the property.

The Pike Warden Project sits on the northern rim of the Bennett Lake Caldera Complex, one of

Canada's largest collapsed volcanic centres. This dynamic geological environment is highly prospective

for the formation of large-scale polymetallic porphyry copper and epithermal gold-silver mineralizing

systems.

Company CEO, Scott McLean, commented:

"The Summer 2025 program caps four consecutive field

seasons of systematic work in Yukon, building robust geoscientific datasets to advance Pike Warden.

We now have drill-ready targets, and we intend to mobilize a drill this fall to evaluate mineralization

beneath shallow cover."

2025 Summer Program:

Geophysics:

8.9 line-km of ground IP surveying over portions of Copper Junction and Copper North

target areas. The program successfully refined areas of reduced resistivity highlighted by the 2024

airborne ZTEM survey (

see news release dated August 22, 2024

).

Results also highlighted a broad zone

of elevated chargeability/resistivity adjacent to mapped exposures of porphyry-style copper

mineralization east of the Copper North target area.

Mapping and Sampling:

Following up on zones highlighted from previous programs, 64 additional

rock samples were collected, with hosting host of prospective mineralization (Figure 1). All samples

were submitted to ALS Chemex for multi-element base and precious metal analysis. Results from this

sampling work are pending. To date, approximately 1,900 rock and soil samples have been collected,

returning elevated concentrations of gold (Au), silver (Ag), copper (Cu), and molybdenum (Mo). More

than 25 polymetallic showings have discovered to date, yielding exceptional assays including values up

to 48.1 g/t Au, 11,270 g/t Ag, 7.49% Cu, and 2.37% Mo.

Target Definition:

Integration of geophysics, high-density LiDAR, orthophoto analysis, and structural

analysis has outlined five large-scale prospective areas: three potential porphyry Cu-Mo system centres,

and two epithermal Au-Ag system centres (Figure 2). A total of 17 drill-ready targets have been

identified within the Copper Junction, Copper North, ERT and Golden Saddles areas. An initial drill

program will assess 1 to 3 of these targets while seasonal drilling conditions persist.

Figure 1

: Select photos of mineralized rock samples collected as part of the Summer 2025 field

program. Photo A: heavily sulphidised bedrock exposure from the Olympus target area. Photo B:

Malachite (copper) stained quartz veining material from the Copper Junction target area. Photo C:

Heavy malachite-stained granodiorite from the Silver Train showing area also hosting minor amounts

of molybdenite.

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

https://images.newsfilecorp.com/files/2766/265660_transition_figure1.png

About the Pike Warden Project

The Pike Warden Project, located 65 kilometres south of Whitehorse, Yukon, within the traditional

territory of the Carcross/Tagish First Nation, is an emerging polymetallic epithermal gold-silver and

porphyry copper property. The Company owns or has the option to own 100% interest in the 203

contiguous quartz claims covering an area of approximately 41 square kilometres.

The Project encompasses a combination of historic and recently discovered high-grade polymetallic

occurrences, with bedrock and scree sampling across the property returning highlight values up to

11,270 g/t Ag, 48.1 g/t Au, 7.49% Cu, 59.6% Pb, 2.37% Mo, and 2.61% Zn. Furthermore, maiden drilling

at the ERT Zone in 2022 returned percussion samples with highlight values up to 468 g/t Ag, 0.19 g/t Au,

163.5 ppm Cu, and 1,150 ppm Zn over 1.5 metre sample intervals (

see news release dated January 16,

2023

).

Mineralization on the Property appears to be spatially associated with large-scale structures, particularly

at intersection nodes. Concentric structures interpreted as caldera collapse features are intruded by

porphyritic ring dykes of the Bennett Lake Volcanic Complex. A second prominent structural trend

identified are northeast-trending structures trending across the property, are believed to relate to a

broader regional caldera collapse hinge zone. A combination of overlapping higher-temperature

alteration styles, metal zonation, and zones of increased vein and fracture density appear to indicate that

a mineralizing porphyry copper system(s) are exposed at varying erosional levels, interpreted to be

controlled or bounded by the caldera collapse structures.

Figure 2:

Pike Warden Property highlight areas with system scale copper porphyry and/or epithermal

gold-silver potential identified. Areas in which drill targets are defined are within the highlighted red

circles. Colour gridded area displays IP-survey results with N=2 chargeability response with red

values highlighting areas of elevated chargeability on a backdrop of the digital elevation model. Rock

and soil sampling results highlight areas of elevated base and/or precious metal mineralization.

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

https://images.newsfilecorp.com/files/2766/265660_2025m09d09-xtm-

highlights%20drill%20targets%20at%20pike%20warden_figure2.jpg

Qualified Person

The scientific and technical content of this release has been reviewed and approved by Mr. Benjamin

Williams, P.Geo. (PGO), Senior Geologist at Transition Metals Corp. and a Qualified Person as defined

by NI 43-101.

About Transition Metals Corp.

Transition Metals Corp. (TSXV: XTM) is a Canadian-based, multi-commodity explorer. Its award-winning

team of geoscientists has extensive exploration experience which actively develops and tests new ideas

for discovering mineralization in places that others have not looked, often allowing the Company to

acquire properties inexpensively. Joint venture partners earn an interest in the projects by funding a

portion of higher-risk drilling and exploration, allowing Transition to conserve capital and minimize

shareholder's equity dilution.

Cautionary Note on Forward-Looking Information

Except for statements of historical fact contained herein, the information in this news release constitutes

"forward-looking information" within the meaning of Canadian securities law. Such forward-looking

information may be identified by words such as "plans", "proposes", "estimates", "intends", "expects",

"believes", "may", "will" and include without limitation, statements regarding estimated capital and

operating costs, expected production timeline, benefits of updated development plans, foreign exchange

assumptions and regulatory approvals. There can be no assurance that such statements will prove to be

accurate; actual results and future events could differ materially from such statements. Factors that could

cause actual results to differ materially include, among others, metal prices, competition, risks inherent in

the mining industry, and regulatory risks. Most of these factors are outside the control of the Company.

Investors are cautioned not to put undue reliance on forward-looking information. Except as otherwise

required by applicable securities statutes or regulation, the Company expressly disclaims any intent or

obligation to update publicly forward-looking information, whether as a result of new information, future

events or otherwise.

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.

Further information is available at

www.transitionmetalscorp.com

or by contacting:

Scott McLean

President and CEO

Transition Metals Corp.

Tel: (705) 669-1777

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

https://www.newsfilecorp.com/release/265660