American Tungsten extends strike of tungsten mineralization at IMA Mine, Idaho
American Tungsten Corp. [CSE: TUNG; OTCQB: TUNGF; FSE: RK90] reported initial drilling results from the second drill station on the D-Level of the IMA Mine, Lemhi County, Idaho. Significant tungsten-silver intercepts in all drillholes demonstrate continuity of the polymetallic vein system along strike to the northwest and up-dip from areas of historical mining.
Highlights: 28.3 feet grading 0.39% WO3 and 1.08 oz/ton Ag in hole AT25-08, including 5.5 fee of 0.82% WO3; 26.2 feet grading 0.33% WO3 and 1.62 oz/ton Ag in hole AT25-09, including 3.2 feet of 1.03% WO3; and 10 feet grading 0.80% WO3 and 1.91 oz/ton Ag in hole AT25-10.
“The results from the second drill station on the D-Level further reinforce the continuity and scale of the tungsten-silver vein system at the IMA Mine,” said Ali Haji, CEO of American Tungsten. “The consistent mineralization widths encountered across all drillholes support our understanding of the vein geometry and its extension up-dip and along strike from historical workings. These results provide continued confidence as we systematically advance drilling to define a modern, mineable resource.”
Recent drilling results include initial assays from the second underground drill station on the D-level of the IMA Mine, as well as the bottom interval of hole 7, the top of which was reported February 24, 2026.
This drilling is being conducted from a new exploration drift in the footwall of the vein system to confirm historical mineral reserves and extend limits of mineralization up-dip and along strike. Hole AT26-08 was drilled as an infill hole targeting the vein system up-dip of AT25-01. Hole AT26-09 targeted historical reserves blocked out in the No 5 and No 7 veins. Hole AT26-10 was fanned to the northeast to assess the up-dip extent of the vein system and to twin mineralization intersected in historical surficial drillhole ID-9 drilled by Inspiration Development Company.
Assays for additional completed drillholes are pending. Refer to original press release for more assays.
American Tungsten has completed 15 drillholes on the D-level and eight drillholes on the Zero level, totaling approximately 7,800 feet. Drilling on the D-level is being conducted in a series of upward inclined fan holes from new drill stations in the footwall of the No.5 and No.7 vein systems.
Mineralization in the principal veins consists of variable assemblages of hubnerite, scheelite, tetrahedrite, galena, sphalerite, and chalcopyrite, plus fluorite and rhodochrosite. Additional mineralization is associated with minor veins and stockworks within intervening metasedimentary host rocks.
Phase 1 Drill Program: Drilling operations are ongoing from the second D-level drill station and excavation of the drift to the third drill station is underway. Currently, at least four additional holes totaling approximately 2,800 feet are planned from on the D-level and more holes may be added to the program based on results. Drilling and mine rehabilitation operations are also being conducted on the Zero level including construction of the second drill station, located approximately 900 feet from the portal. Drilling on the Zero level will include up to 20 holes totaling approximately 10,000 feet from three locations.
The IMA Mine is a past producing underground tungsten mine situated on 22 patented claims located in East Central Idaho. Between 1945 and 1957, the property produced approximately 199,449 MTUs of WO3 and was subsequently explored for molybdenum and tungsten by various operators between 1960-2010. American Tungsten is currently conducting an exploration drill program and assessing potential for re-start of underground tungsten mining operations at the IMA Mine.
American Tungsten is a Canadian exploration company focused on high-potential tungsten and magnetite assets in North America. The company is advancing the IMA Mine Project in Idaho to commercial production, addressing critical metal scarcity in North America.
The IMA Mine Project is a historic and high-quality underground tungsten past-producing property on private-patented land well above the water table with significant infrastructure. The company holds an exclusive option to acquire full ownership (subject to a 2% royalty) and has expanded its land position with 113 additional federal claims covering nearly 2,000 acres.
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