Mr. Murray Nye reports

NORTH AMERICAN NIOBIUM AND CRITICAL MINERALS CORP. EXPANDS LAND PACKAGE IN QUEBEC

North America Niobium and Critical Minerals Corp. has acquired additional mineral properties in Quebec. The company has: (i) extended the Seigneurie property through the acquisition of additional claims; and (ii) added a new, exploration project in the Escoumins municipality.

These acquisitions strengthen the company's strategic footprint in geologically prospective terrain and position North American Niobium to advance a pipeline of rare earth element and critical mineral exploration targets.

Strategic rationale for land expansion

The expanded land package reflects a disciplined, geology-driven approach to property consolidation in underexplored but highly prospective areas. The Escoumins project and in particular the Seigneurie project exhibit geological characteristics commonly associated with REE and critical mineral systems, including carbonatites and potassic-felsic intrusions environments.

Management believes that early-stage land consolidation in these settings enhances potential for mineral discovery.

Seigneurie project -- carbonatite-hosted REE potential

The Seigneurie property was originally staked following documentation by Quebec's Ministere de l'Energie et des Ressources naturelles describing a carbonatite outcrop within the project area. Carbonatites are globally recognized as one of the most important primary hosts for REEs and related critical minerals.

Subsequent work returned anomalous rare earth element values, validating the geological concept and supporting further land consolidation. As part of the expansion, the company has acquired an additional 12 mineral claims (or exclusive exploration rights), extending the Seigneurie property and increasing coverage along a greater-than-27-kilometre prospective structural and magmatic trend (see press release on Oct. 29, 2025).

Carbonatites and associated potassic-felsic intrusive rocks are common components of alkaline REE systems worldwide. The company plans to advance the Seigneurie property through systematic geochemical and geophysical surveys, which are expected to refine target areas, identify potential intrusive centres and prioritize zones for follow-up exploration.

Escoumins property -- historical drilling and critical mineral upside

The newly acquired Escoumins property, located in the Escoumins municipality, represents an additional exploration opportunity with compelling historical context. The property was drilled by Soquem in the 1970s, intersecting uranium- and thorium-bearing granitic pegmatites.

Importantly, these historical drill intersections were not assayed for rare earth elements or other critical minerals, leaving the property significantly underevaluated by modern exploration standards. Pegmatitic systems enriched in uranium and thorium can be genetically linked to REE-enriched magmatic processes.

At present, the Escoumins property remains at a preliminary evaluation stage, with the company compiling and reviewing historical data to determine the most effective path forward for modern exploration.

Exploration outlook

North American Niobium intends to advance the Seigneurie property as its near-term exploration priority, leveraging geochemistry and geophysics to delineate multiple targets along the expanded land position. The Escoumins property will continue to undergo data compilation and early-stage technical assessment to evaluate its potential within the company's broader critical mineral strategy.

The company remains focused on cost-effective land acquisition, early-stage discovery potential and disciplined exploration execution.

About North American Niobium and Critical Minerals Corp.

North American Niobium is a North American mineral exploration company focused on the acquisition and development of precious, base and critical mineral assets. Its portfolio includes the Silver Lake property in British Columbia's Omineca mining division and a recently acquired land package in Quebec's Grenville province. The Quebec properties add exposure to rare earth elements, niobium and nickel-copper occurrences, expanding the company's footprint into critical minerals that are strategically important for energy and defence applications.

Qualified person

The scientific and technical information contained in this news release has been prepared in accordance with National Instrument 43-101 (Standards of Disclosure for Mineral Projects). Clyde McMillan, PGeo, a consultant to the company and a qualified person as defined under NI 43-101, has reviewed and approved the technical information contained herein.

We seek Safe Harbor.