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American T&A identifies larger than expected system at Dutch Mountain

ASX News, Materials
ASX:AT4      MCAP $179.0M
25 February 2026 10:09 (AEDT)

AT4 MD, Andre Booyzen (left), with senator John Curtis (middle) and Luke Johnson from the Bernhart Group (right).

American Tungsten & Antimony (ASX:AT4) is fast-tracking development of the Dutch Mountain project in Utah after early workings found the tungsten-bearing system is a whole lot larger than initially anticipated.

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Disclaimer: This content has been prepared as part of a partnership with American T&A Ltd and is intended for informational purposes only.

The company is looking to take advantage of the only permitted tungsten-processing route in the district and is undertaking studies for early production options.

The recently acquired State-side project notably includes the Fraction Lode mine, which stands as the last active tungsten producer in the U.S. The famed mine features estimated historical head grades of 1.7%.

AT4’s MD, Andre Booyzen, today said the Australian-headquartered company is preparing a notice of intent (NOI) for a drilling program to accelerate development of Dutch Mountain, with a plan to speed up approval by utilising the existing disturbed ground around the Fraction Lode open pit.

“The combination of the Fraction Lode’s high-grade pedigree and our permitted processing facility provides AT4 with a clear pathway to production,” Mr Booyzen said. “In our view, ownership of this facility directly addresses the lack of regional infrastructure and strengthens our ability to consolidate the district.”

Mr Booyzen said the potential to undertake accelerated drilling will lead to immediate evaluation of the depth and lateral extent of the high-grade system.

The company has already completed phase one exploration at Dutch Mountain, including grid-controlled soil and rock chip sampling, with initial findings showing the tungsten-bearing system is open in all directions.

American T&A now plans to add rock chip assay results into a geological model to refine targets and prioritise collars. It’s also undertaking an engineering review of the processing facility to finalise the restart schedule.

AT4 is at 13.8c heading into Wednesday’s morning trade.

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The material provided in this article is for information only and should not be treated as investment advice. Viewers are encouraged to conduct their own research and consult with a certified financial advisor before making any investment decisions. For full disclaimer information, please click here.

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