United States Antimony Corporation Announces Mining Operations Initiated at Stibnite Hill in Montana
United States Antimony Corporation (NYSE:UAMY) announced on October 17, 2025 that after securing permits from the Department of Environmental Quality it has initiated exploration and bulk sampling at Stibnite Hill, adjacent to its expanding Thompson Falls, Montana smelter.
The company reported that multiple loads of antimony ore have been trucked to a Montana flotation mill for crushing and sampling and that its metallurgical chemist will review results; management said it is encouraged by ore quality and expects processing to begin this year. The release also noted a roughly five-month permit delay in Alaska shifted the first output to Montana and described US Antimony as fully integrated from mining to finished antimony products.
United States Antimony Corporation (NYSE:UAMY) ha annunciato il 17 ottobre 2025 che, dopo aver ottenuto i permessi dal Dipartimento della Qualità Ambientale, ha avviato l'esplorazione e il campionamento in bulk presso Stibnite Hill, adiacente al suo impianto di fusione in espansione di Thompson Falls, Montana.
L'azienda ha riferito che diversi carichi di minerale di antimonio sono stati trasportati su strada a una fucinatrice di Montana per la frantumazione e il campionamento e che il proprio chimico metallurgico esaminerà i risultati; la direzione ha dichiarato di essere incoraggiata dalla qualità del minerale e si aspetta che la lavorazione inizi quest'anno. Il comunicato ha anche evidenziato un ritardo di permesso di circa cinque mesi in Alaska che ha spostato la prima produzione in Montana e ha descritto United States Antimony come completamente integrata dalla fase di estrazione ai prodotti di antimonio finiti.
United States Antimony Corporation (NYSE:UAMY) anunció el 17 de octubre de 2025 que, tras obtener permisos del Department of Environmental Quality, ha iniciado la exploración y el muestreo a granel en Stibnite Hill, junto a su planta de refinación en Thompson Falls, Montana.
La empresa informó que varios cargamentos de mena de antimonio han sido trasladados por carretera a una molienda de flotación en Montana para su trituración y muestreo y que su químico metalúrgico revisará los resultados; la dirección dijo estar alentada por la calidad del mineral y espera que el procesamiento comience este año. El comunicado también señaló un retraso de permisos de aproximadamente cinco meses en Alaska que desplazó la primera producción a Montana y describió a US Antimony como completamente integrada, desde la extracción hasta los productos de antimonio terminados.
United States Antimony Corporation (NYSE:UAMY)은 2025년 10월 17일에 환경품질부의 허가를 확보한 후 탐사 및 대량 시료 채취를 Stibnite Hill에서 시작했다고 밝혔다. 이는 Thompson Falls, Montana의 확장 중인 제련소에 인접한 곳이다.
회사는 다수의 안티몬 광석이 몬태나 주의 플로테이션 제분소로 운반되어 파쇄 및 시료 채취가 이루어졌으며, 그들의 금속학 화학자가 결과를 검토할 것이라고 밝혔다. 경영진은 광석 품질에 고무되어 있으며 올해 중 가공이 시작될 것을 기대한다. 발표문은 또한 약 다섯 달의 Alaska 허가 지연이 최초 생산을 몬태나로 옮겼다고 지적했고, US Antimony가 채굴에서 최종 안티몬 제품에 이르기까지 완전하게 통합되었다고 설명했다.
United States Antimony Corporation (NYSE:UAMY) a annoncé le 17 octobre 2025 qu’après avoir obtenu les permis du Department of Environmental Quality, elle a commencé l’exploration et l’échantillonnage en grande quantité à Stibnite Hill, à côté de son fonderie en expansion à Thompson Falls, Montana.
L’entreprise a indiqué que plusieurs chargements de minerai d’antimoine ont été acheminés par camion vers une usine de flottation dans le Montana pour le concassage et l’échantillonnage et que son chimiste métallurgiste examinera les résultats ; la direction s’est dite encouragée par la qualité du minerai et s’attend à ce que le traitement commence cette année. Le communiqué a également noté un retard d’environ cinq mois sur permis en Alaska qui a déplacé la première production vers le Montana et a décrit US Antimony comme entièrement intégrée, de l’exploitation aux produits finis d’antimoine.
United States Antimony Corporation (NYSE:UAMY) gab am 17. Oktober 2025 bekannt, dass es nach der Erteilung der Genehmigungen durch das Department of Environmental Quality mit der Erkundung und Probenahme in großem Umfang am Stibnite Hill, angrenzend zu seiner expandierenden Thompson Falls-Schmelze in Montana, begonnen hat.
Das Unternehmen berichtete, dass mehrere Lastwagen mit Antimon-Erz zu einer Montanaflotationsmühle für Zerkleinerung und Probenahme transportiert wurden und dass sein metallurgischer Chemiker die Ergebnisse prüfen werde; das Management sagte, die Erzqualität mache zuversichtlich, und erwarte, dass die Verarbeitung dieses Jahr beginnt. Die Mitteilung hob zudem eine ungefähr fünfmonatige Verzögerung bei Genehmigungen in Alaska hervor, die den ersten Output nach Montana verlegt hat, und beschrieb US Antimony als vollständig integriert von der Gewinnung bis zu fertigen Antimonprodukten.
United States Antimony Corporation (NYSE:UAMY) أعلنت في 17 أكتوبر 2025 بأنه بعد الحصول على تصاريح من وزارة الجودة البيئية قامت بـ بدء الاستكشاف وجمع العينات على نطاق واسع في تلة ستبنايت بجانب مصنعها في ثومبسون فالس، مونتانا.
وأفادت الشركة بأن عدة شحنات من خام الأنتيمون تم نقلها بالسيارة إلى مطحنة مونتانا للفصل والتكسير والاختبار وبأن الكيميائي المعدني لديها سيقوم بمراجعة النتائج؛ وأكدت الإدارة أنها متفائلة بجودة الخام وتتوقع أن يبدأ المعالجة هذا العام. كما أشار البيان إلى تأخير في الترخيص يقارب خمسة أشهر في ألاسكا مما نقل الإنتاج الأول إلى مونتانا ووصف US Antimony بأنها متكاملة تماماً من التعدين إلى المنتجات النهائية من الأنتيمون.
United States Antimony Corporation (NYSE:UAMY) 于 2025年10月17日 宣布，在获得环境质量部的许可后，已在斯蒂布奈特山（Stibnite Hill）启动勘探和大宗样品采集，该地邻近其在蒙大拿州汤普森瀑布扩建中的冶炼厂。
公司报告称，数车锑矿已被运往蒙大拿州的浮选磨矿厂进行破碎和取样，其冶金化学家将对结果进行评审；管理层表示对矿石质量感到乐观，预计今年将开始加工。公告还提到大约五个月的阿拉斯加许可延迟将首期产量转移到蒙大拿，并将US Antimony描述为从开采到最终锑制品的全链条一体化企业。
- DEQ permits obtained in October 2025 enabling Montana work
- Exploration and bulk sampling initiated at Stibnite Hill
- Multiple loads of antimony ore delivered to Montana flotation mill
- Adjacent Thompson Falls smelter undergoing significant expansion
- Alaska permit delays of about five months postponed initial production there
- Ore quality still subject to metallurgical chemist review before final processing
- No production volumes, revenue, or timetable figures disclosed
Insights
Permit-secured restart and initial ore shipments start on Stibnite Hill, enabling near-term feed into adjacent Montana processing.
United States Antimony Corporation secured Department of Environmental Quality permits and immediately began exploration and bulk sampling on Stibnite Hill, with multiple truckloads of raw antimony ore delivered to a Montana flotation mill for crushing and metallurgical review. Management reports the material as high quality and notes this operation sits adjacent to its expanding Thompson Falls smelter, creating a direct mine-to-process pathway.
Risks include the need for metallurgical confirmation of recoveries and any permitting conditions still in force; processing volumes and commercial product timing depend on the metallurgical chemist’s review and further sampling. Watch for assay results, recovery rates and any stated processing start dates in the coming weeks and for operational updates tied to the Thompson Falls expansion during
"The Critical Minerals and ZEO Company"
~ Antimony, Cobalt, Tungsten, and Zeolite ~
DALLAS, TX, 271 / ACCESS Newswire / October 17, 2025 / United States Antimony Corporation ("USAC," "US Antimony," the "Company"), (NYSE American:UAMY)(NYSE Texas:UAMY), a leading producer and processor of antimony, zeolite, and other critical minerals, announced today that after obtaining the necessary permits from the Department of Environmental Quality ("DEQ") this month, the Company immediately initiated exploration and bulk sampling operations on Stibnite Hill, which is located directly adjacent to our Thompson Falls, Montana smeltering operation that is currently under significant expansion.
Antimony ore has now been trucked in a number of loads off the mountain to a flotation mill in Montana for crushing and sampling prior to further review by our metallurgical chemist. Management is highly encouraged due to the high quality of this material.
Commenting on this significant achievement announced today, Joe Bardswich, Executive Vice President and Chief Mining Engineer for USAC said, "Earlier this year, we began the process of acquiring mineral leases and actual real property purchases in and around the Stibnite Hill mine previously operated and mined by the Company over twenty years ago. Once the necessary permits were obtained from the DEQ this month, we began our exploration efforts. Those have resulted in our first four loads of raw antimony ore for our existing operations to begin processing this year. While we fully expected our first actual product from the Company to come from our Alaska operations, the delay in permit approvals in that state for approximately five months, allowed Montana to be first. This achievement now makes United States Antimony Corporation the first company in the world to be fully integrated from mining operations to finished products of antimony."
About USAC:
United States Antimony Corporation and its subsidiaries in the U.S., Mexico, and Canada ("USAC," "U.S. Antimony," the "Company," "Our," "Us," or "We") sell antimony, zeolite, and precious metals primarily in the U.S. and Canada. The Company processes third party ore primarily into antimony oxide, antimony metal, antimony trisulfide, and precious metals at its facilities located in Montana and Mexico. Antimony oxide is used to form a flame-retardant system for plastics, rubber, fiberglass, textile goods, paints, coatings, and paper, as a color fastener in paint, and as a phosphorescent agent in fluorescent light bulbs. Antimony metal is used in bearings, storage batteries, and ordnance. Antimony trisulfide is used as a primer in ammunition. The Company also recovers precious metals, primarily gold and silver, at its Montana facility from third party ore. At its Bear River Zeolite ("BRZ") facility located in Idaho, the Company mines and processes zeolite, a group of industrial minerals used in water filtration, sewage treatment, nuclear waste and other environmental cleanup, odor control, gas separation, animal nutrition, soil amendment and fertilizer, and other miscellaneous applications. During 2024 and 2025, the Company began acquiring mining claims and leases located in Montana, Alaska and Ontario, Canada in an effort to expand its operations as well as its product offerings.
Forward-Looking Statements:
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including, without limitation, statements regarding the Company's future operations, production levels, financial performance, business strategy, market conditions, demand for antimony, zeolite, other critical minerals, and precious metals, expected costs, and other statements that are not historical facts. These statements are based on current expectations, estimates, forecasts, and projections about the industries in which the Company operates, as well as management's beliefs and assumptions. Words such as "anticipates," "expects," "intends," "plans," "believes," "seeks," "estimates," "may," "will," "should," "could," and variations of these words or similar expressions are intended to identify such forward-looking statements.
Forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those indicated in such statements, including, but not limited to: fluctuations in the market prices and demand for antimony and zeolite; changes in domestic and global economic conditions; operational risks inherent in mining and mineral processing; geological or metallurgical conditions; availability and cost of energy, equipment, transportation, and labor; the Company's ability to maintain or obtain permits, licenses, and regulatory approvals; changes in environmental and mining laws or regulations; competitive factors; the impact of geopolitical developments; and the effects of weather, natural disasters, or health pandemics on operations and supply chains. Additional information regarding risk factors that could cause actual results to differ materially is included in the Company's filings with the U.S. Securities and Exchange Commission, including the most recent Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q.
The Company undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by law. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof.
Contact:
United States Antimony Corp.
4438 W. Lovers Lane, Unit 100
Dallas, TX 75209
Jonathan Miller, VP, Investor Relations
E-Mail: Jmiller@usantimony.com
Phone: 406-606-4117
SOURCE: United States Antimony Corp.
View the original press release on ACCESS Newswire
FAQ
What did United States Antimony (UAMY) announce on October 17, 2025 about Stibnite Hill?
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Will UAMY process Stibnite Hill ore at its Montana smelter in 2025?
What caused Montana operations to start before UAMY's Alaska operations?
Does the announcement confirm commercial production or revenue impact for UAMY?
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