CleanTech To Commence Diamond Drilling at Campbell-Crotser Fluorspar Project, Kentucky

About this update from Cleantech Vanadium Mining Corp

Vancouver, British Columbia--(Newsfile Corp. - June 12, 2026) - CleanTech Vanadium Mining Corp. (TSXV: CTV) (OTCQB: CTVFF) ("CleanTech" or the "Company") announces the start of a diamond-core drilling program at its Campbell-Crotser fluorspar project ("Campbell-Crotser" or the "Project") in the Illinois-Kentucky Fluorspar District ("IKFD"). The initial program comprises eight (8) diamond-core drill holes totaling 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 (tpd) flotation processing plant to produce 97% acid grade fluorspar commercial product. This is the first drilling at Campbell-Crotser since the 1970s by Cerro Corporation. Program Highlights The Campbell-Crotser mineralization is interpreted as a sub-vertical, 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° and a dip of -60°, 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 down-dip, and has a drill-tested plan-view length of approximately 750 feet. The potential quantity and grade of this exploration target is 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 ...

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