Mr. John Lee reports

CLEANTECH TO COMMENCE DIAMOND DRILLING AT CAMPBELL-CROTSER FLUORSPAR PROJECT, KENTUCKY

Cleantech Vanadium Mining Corp. has started a diamond-core drilling program at its Campbell-Crotser fluorspar project in the Illinois-Kentucky fluorspar district. The initial program comprises eight diamond-core drill holes totalling approximately 9,000 feet, with the potential to extend to a further eight holes (approximately 18,000 feet, 16 holes in total). The program is designed to delineate sufficient mineralized material to define an initial underground mine plan and to establish the first year of raw fluorspar feed to a planned 500-ton-per-day flotation processing plant to produce 97-per-cent acid grade fluorspar commercial product. This is the first drilling at Campbell-Crotser since the 1970s by Cerro Corp.

Program highlights:

• 200-foot-spaced drilling over a previously drilled vein system, to determine suitability for engineering-level underground mine planning;
• Conceptual size target of between 150,000 and 250,000 tons of raw calcium fluoride materials (CaF2) at approximately 35 per cent CaF2 based on results from 77 historic drill holes;
• Scheduled start date of Aug. 1, 2026, with the initial program designed for completion by the end of January, 2027.

The Campbell-Crotser mineralization is interpreted as a subvertical, fault-controlled fluorspar (calcium fluoride, CaF2) vein hosted in limestone -- a setting characteristic of the historically prolific IKFD. The objective is to define a continuous vein system that can be developed by conventional mechanized underground mining.

Holes have been designed at an azimuth of 110 degrees and a dip of minus 60 degrees, with planned depths of 984 to 1,148 feet, to intersect the interpreted vein across the target area.

The targeted part of the vein averages approximately 12 feet in true thickness, extends 300 to 400 feet downdip and has a drill-tested plan-view length of approximately 750 feet.

The potential quantity and grade of this exploration target are conceptual in nature. There has been insufficient exploration to define a mineral resource on the Campbell Crotser project, and it is uncertain whether further exploration will result in the target being delineated as a mineral resource. This conceptual target is not a mineral resource estimate and should not be construed as one. The estimate is based on the company's geological interpretation of historic data and is provided to give context to the objectives of the planned drill program.

Campbell-Crotser fluorspar project summary

The Campbell-Crotser fluorspar project covers approximately 275 acres in Livingston county, Kentucky, within the heart of the historic Kentucky-Illinois fluorspar district, a region long recognized as North America's most prolific fluorspar-producing belt. This mineral belt spans approximately 540 square miles across western Kentucky and southern Illinois. Commercial mining began in the 1870s, and the region went on to produce approximately 30 million tons of raw fluorspar, along with byproducts zinc, lead and barite. Fluorspar-rich veins in the region are hosted in Mississippian-aged limestones, controlled by steep normal faults, and are often accompanied by sphalerite, galena and calcite.

The mineralization style is consistent with a Mississippi Valley-type system, exhibiting clear structural and stratigraphic control. Vein-type and replacement-style mineralization occur along fault breccias and bedding planes. Fluorite occurs as coarse-grained vein infill, with calcite, barite, sphalerite and galena as common gangue and accessory minerals.

A historic (non-National Instrument 43-101 compliant) mineral resource estimate, performed by Boyce Moodie III in 1974 for Cerro Spar Corp. on the Campbell-Crotser fluorspar project following its drill program, reported 805,841 tons grading 37.10 per cent CaF2, 3.23 per cent Zn and 0.99 per cent Pb.

Historical data disclaimer

The key assumptions and methods used to prepare the historical resource or production estimates cited herein are not available. The company has not reviewed or validated the historic data, and caution should be taken as a qualified person has not conducted sufficient work to classify these historical resource estimates as a current mineral resource and the company is not treating them as a current mineral resource. The historic resource does not demonstrate economic viability and should not be relied on. The company considers the historical estimate relevant as it indicates significant fluorspar mineralization within the project area; however, the reliability is uncertain given the age of the data and differences between historical estimation methods and current Canadian Institute of Mining, Metallurgy and Petroleum Definition Standards.

The historical resource categories were defined prior to the adoption of current CIM Definition Standards and differ materially from current categories such as inferred mineral resource. The historical estimates do not meet current CIM requirements for mineral resource classification due to: insufficient verification, lack of documented estimation methodology and absence of quality assurance/quality control protocols. Steps to verify and upgrade the historical estimates to current CIM standards include: (i) compilation and validation of all historical drill data; (ii) twin drilling of select historical holes; (iii) confirmatory drilling in key areas of mineralization; (iv) updated geological modellingl and (v) preparation of a new mineral resource estimate in accordance with NI 43-101.

Qualified person

The technical contents of this news release have been reviewed and approved by Michael Hendrickson, a member of the Professional Geoscientist of Ontario, a PGeo (No. 3254). Mr. Hendrickson is a consultant to the company and a qualified person as defined by National Instrument 43-101.

About Cleantech Vanadium Mining Corp.

Cleantech is a mining company focused on critical mineral resources in the United States. The company has an option to acquire more than 17,550 acres of mineral rights with historic fluorspar resources across multiple projects in the Illinois-Kentucky fluorspar district. Cleantech also owns a 100-per-cent interest in the Gibellini vanadium mine project in Nevada.

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