Logo of American Tungsten & Antimony (ASX:AT4)Latest American Tungsten & Antimony (ASX:AT4) News

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AT4 posts $34.1m loss as US antimony strategy reaches refinery stage

American Tungsten & Antimony has paired a sharply higher FY2026 loss with its most consequential strategic step yet: a proposed US mine-to-metal chain anchored by the Del Sol refinery. The acquisition remains unfinished, but the company has produced antimony ingot from Arizona mine material and ended the year with $19.5 million in cash.
Maxwell Dee
30 Sept 2026

AT4 advances Nasdaq bid with confidential SEC filing

American Tungsten & Antimony has submitted a confidential draft Form F-1 to US regulators, moving its proposed Level III ADR listing on Nasdaq into formal review. The company also extended the Del Sol transaction end date by three weeks, leaving both major initiatives progressing but unfinished.
Maxwell Dee
28 Sept 2026

AT4 turns Arizona antimony into Nevada ingot in first US mine-to-metal test

American Tungsten & Antimony has produced antimony ingot from Arizona-mined material at its Nevada refinery, providing the first physical demonstration of its proposed US mine-to-metal chain. The milestone creates samples for testing and customer qualification, but the underlying asset acquisition remains incomplete and product quality is yet to be disclosed.
Maxwell Dee
21 Sept 2026

AT4 Begins Ahead-of-Schedule Antimony Refinery Restart in Nevada

American Tungsten & Antimony has started an ahead-of-schedule campaign to produce antimony flake at its Del Sol refinery in Nevada, using material from Arizona. The first physical demonstration of its proposed US mine-to-metal chain could generate samples for customer qualification and government discussions, although the underlying asset acquisition remains incomplete.
Maxwell Dee
16 Sept 2026

AT4 Engages Metso for Tungsten APT Expansion Study at Del Sol Refinery

American Tungsten & Antimony has commissioned Metso Finland to conduct a concept-level study for expanding ammonium paratungstate production at its Nevada Del Sol Refinery, aiming to bolster US domestic tungsten supply amid national security concerns.
Maxwell Dee
1 Sept 2026

Materials Wrap - Week 34 (17 Aug -> 21 Aug) 2026

Rare earths and uranium stocks led a broad resources rally, while gold companies combined record profits with larger reserves and dividends. Yet strong company news did not guarantee a rising share price, with several materials groups falling despite better earnings or project progress.
Logan Eniac
22 Aug 2026

AT4 Advances Del Sol Refinery Trials and Engineering for US Domestic Tungsten and Antimony Production

American Tungsten & Antimony Ltd (ASX: AT4) has kicked off critical wet table trials at its Del Sol Refinery in Nevada, moving closer to producing ammonium paratungstate and antimony flake from domestic sources. Engineering proposals for expanding the plant’s tungsten processing capacity are under review, while the company pursues US government funding and regulatory approvals.
Maxwell Dee
21 Aug 2026

AT4 Confirms Material US Acquisition and Timely ASX Disclosure Compliance

American Tungsten & Antimony Ltd (ASX: AT4) affirmed the materiality of its US acquisition deal and detailed its adherence to ASX continuous disclosure rules following an ASX inquiry.
Maxwell Dee
7 Aug 2026

AT4 Sets Stage for Del Sol Refinery Ramp-Up and Expansion Pending Acquisition

American Tungsten & Antimony plans to restart and expand the Del Sol Refinery and White Spar Mine in the US, contingent on completing their acquisition. The company is preparing for increased processing capacity and new product lines while engaging with regulators and engineering firms.
Maxwell Dee
6 Aug 2026

Market Wrap - Week 28 (6 July -> 10 July) 2026

Mining news drove the week, with drilling hits, funding wins and takeover bids pushing several small and mid-cap names sharply higher or lower. The biggest swings came from tin, platinum group metals and copper, while gold M&A in WA stayed at the centre of trading.
Logan Eniac
11 July 2026

Materials Wrap - Week 28 (6 July -> 10 July) 2026

Big movers came from drill hits, takeover bids and fresh funding, but several stocks still fell even after good news. That mix says investors are rewarding clear near-term value, while punishing names where timing, cost or delivery still feel uncertain.
Logan Eniac
11 July 2026

American Tungsten & Antimony Appoints Casper Adson to Drive Defence-Grade Processing

American Tungsten & Antimony Ltd (ASX: AT4) has named Casper Adson as CEO to spearhead its metallurgical strategy, aiming to transform its US antimony and tungsten assets into defence-grade products and tap into US government funding.
Maxwell Dee
9 July 2026