Mr. Scott McLean reports

TRANSITION METALS DEFINES MULTIPLE DRILL-READY COPPER PORPHYRY AND EPITHERMAL GOLD-SILVER TARGETS AT PIKE WARDEN

Targeting work completed during the summer, 2025, field season has outlined 17 drill-ready targets across four of the five mineralized prospective areas previously identified at Transition Metals Corp.'s 100-per-cent-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 chief executive officer Scott McLean commented: "The summer, 2025, program caps four consecutive field seasons of systematic work in Yukon, building robust geoscientific data sets 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 kilometres (km) of ground IP (induced polarization) 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 Aug. 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. All samples were submitted to ALS Chemex for multielement 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 grams per tonne (g/t) Au, 11,270 g/t Ag, 7.49 per cent Cu and 2.37 per cent Mo;
• Target definition: Integration of geophysics, high-density lidar (light detection and ranging), 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. 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 one to three of these targets while seasonal drilling conditions persist.

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 a 100-per-cent 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 per cent Cu, 59.6 per cent lead (Pb), 2.37 per cent Mo and 2.61 per cent zinc (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 parts per million (ppm) Cu and 1,150 ppm Zn over 1.5-metre sample intervals (see news release dated Jan. 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 dikes of the Bennett Lake volcanic complex. A second prominent structural trend identified are northeast-trending structures trending across the property, 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.

Qualified person

The scientific and technical content of this news release has been reviewed and approved by Benjamin Williams, PGeo (PGO), senior geologist at Transition Metals and a qualified person as defined by National Instrument 43-101.

About Transition Metals Corp.

Transition Metals is a Canadian-based, multicommodity explorer. Its award-winning team of geoscientists has extensive exploration experience that 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 financing a portion of higher-risk drilling and exploration, allowing Transition to conserve capital and minimize shareholders' equity dilution.

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