AT4 Submits Drilling Permit for Historic Fraction Lode as Dutch Mountain Tungsten Hub Strategy Advances

About this update from American Tungsten & Antimony Ltd

American Tungsten & Antimony Ltd (AT4 or the Company) is pleased to provide a strategic update on the development of its domestic U.S. production strategy. As the Company advances towards its proposed Nasdaq listing, the activation of the Dutch Mountain processing hub is a key factor in building a Western critical minerals supply chain. In line with this strategy, the Company is pleased to announce that it has submitted a Notice of Intent (NOI) to commence initial exploration drilling at the Fraction Lode Mine , which is part of the Company's Dutch Mountain Tungsten Project in Utah, USA . The NOI represents the first step in launching a targeted drilling program to confirm and expand the known tungsten mineralisation associated with the historically productive Fraction Lode mine. Permit approval is expected without undue delay, enabling drilling to commence shortly thereafter. AT4 has allocated a dedicated team to advance its tungsten assets and execute its tungsten strategy. AT4 Managing Director, Andre Booyzen said: Submitting the Notice of Intent to drill at Fraction Lode is a crucial step in progressing the Dutch Mountain Tungsten Project . The upcoming drilling program aims to confirm and expand known tungsten mineralisation at this historically productive mine, while refurbishment of our fully permitted Dutch Mountain mill continues in parallel. Alongside our hub-and-spoke development approach, which includes the Tennessee Mountain and Nightingale projects in Nevada , this positions AT4 to play a significant role in strengthening the U.S. domestic tungsten supply chain. The NOI submission marks a clear shift for the Company from acquisition to execution as we work to unlock the potential of these assets.' Tennessee Mountain and Nightingale Projects Besides Dutch Mountain, AT4 is progressing with its Tennessee Mountain and Nightingale tungsten projects in Nevada . The Tennessee Mountain Project , situated in Elko County, Nevada , features historical tungsten mining and drilling and is seen as a promising exploration target within a historically productive district. AT4 has lodged a Notice of Intent (NOI) to conduct exploration drilling and is in the process of gaining approvals from the United States Forest Service (USFS). AT4 is working closely with the USFS on the approval process. The Nightingale Project , situated in Pershing County, Nevada , features historic tungsten deposits and offers further exploration potential within AT4's expanding US tungsten portfolio. Alongside Dutch Mountain , these projects give AT4 access to several historically productive tungsten districts across the western United States . Authorised for release by the Board of Directors of American Tungsten & Antimony Ltd. Contact: Andre Booyzen Kristin Rowe American Tungsten & Antimony Ltd NWR Communications Managing Director Email: [email protected] Tel: +61 (08) 6256 4403 ABOUT AMERICAN TUNGSTEN AND ANTIMONY LIMITED American Tungsten and Antimony Limited (ASX: AT4, OTCQB: ATALF) is advancing critical mineral development in Tier-1 US jurisdictions, with a strategic vision to become a vertically integrated, conflict-free supplier to Western economies. Its flagship Antimony Canyon Project in Utah, USA , is one of the country's largest and highest-grade undeveloped antimony systems-historically mined but never subjected to modern exploration. The recently secured Dutch Mountain Tungsten Project in Utah further strengthens AT4's position in critical minerals, adding scale and diversification within a Tier-1 jurisdiction. With a proven leadership team, active government engagement, and smelter development underway, AT4 is strategically positioned to lead the resurgence of antimony and tungsten supply from reliable Western sources. Forward Looking Statements This report contains forward-looking statements that involve several risks and uncertainties. These forward-looking statements are expressed in good faith and believed to have a reasonable basis. These statements reflect current expectations, intentions or strategies regarding the future and assumptions based on currently available information. Should one or more risks or uncertainties materialise, or underlying assumptions prove incorrect, actual results may vary from the expectations, intentions and strategies described in this announcement. No obligation is assumed to update forward-looking statements if these beliefs, opinions, and estimates should change or to reflect other future developments. (C) 2026 Electronic News Publishing, source ENP Newswire

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