AT4 demonstrates US mine-to-metal pathway after producing #antimony ingot | Media coverage by Stockhead. stockhead.com.au/resources/a… $ATALF #AT4

We’re moving beyond critical mineral development and advancing downstream antimony and tungsten capability in the United States. In the second clip from our @MarketOpenAUS interview, CEO Casper Adson discusses how producing physical antimony product at Del Sol changes AT4’s ability to engage with U.S. government agencies, defense primes and prospective offtakers. AT4 has now produced antimony ingot at Del Sol from material mined at White Spar in Arizona, providing physical product samples to progress qualification activities and advance discussions with prospective offtakers, defense contractors and U.S. government agencies. The focus is increasingly on turning U.S. critical mineral resources into physical products on U.S. soil. Watch the clip below. Watch the full video here: piped.video/watch?v=WHj6pHkw… #AT4 $ATALF #Antimony #Tungsten #CriticalMinerals #APT #USCriticalMinerals #Defense

We’re advancing a U.S. mine-to-metal strategy for two of America’s critical minerals – antimony and tungsten. In this @MarketOpenAUS interview, CEO Casper Adson explains why the proposed acquisition of the Del Sol Refinery in Nevada is transformational for AT4 and how it adds a downstream processing capability alongside the Company’s U.S. antimony and tungsten projects. Casper discusses the opportunity to build a business spanning mining, refining and trading, the restart of Del Sol, and plans to expand the refinery’s antimony capacity and assess the production of ammonium paratungstate (APT). With AT4 now having produced antimony ingot at Del Sol from material mined at White Spar in Arizona, the Company has demonstrated a U.S. mine-to-metal pathway using U.S.-mined material processed on U.S. soil. Watch the video to hear more from Casper about the strategy and what Del Sol could mean for AT4’s position in the U.S. critical minerals supply chain. Watch the full video here: piped.video/watch?v=WHj6pHkw… #AT4 $ATALF #Antimony #Tungsten #CriticalMinerals #USCriticalMinerals

We’ve produced antimony ingot at the Del Sol Hydromet Refinery in Amargosa Valley, Nevada, using material from the White Spar Antimony Mine in Yavapai County, Arizona. The production represents the first physical demonstration of the mine-to-metal pathway underpinning AT4’s United States vertical integration strategy, using US-mined material processed on US soil. Physical product samples enable AT4 to progress qualification activities and advance discussions with prospective offtakers, defense contractors and US government agencies. Antimony ingot enables the downstream production of products such as antimony trisulphide and sodium antimonate, establishing an entry point into the downstream product value chain that AT4 intends to develop. “There is a clear difference between a company that intends to produce antimony in the United States and a company that has produced it. Qualification is the gate that every defense supply arrangement must pass through, and it cannot begin without physical material. We now have that material.” Executive Chairman Timothy Morrison Read the full ASX Announcement here: wcsecure.weblink.com.au/pdf/…

American Tungsten & Antimony announces early kickoff of Del Sol restart | Media coverage by @miningcomau mining.com.au/american-tungs…

American Tungsten restarts Del Sol antimony refinery early | Media coverage by @MiningWeeklyAUS. miningweekly.com/article/ame… #AT4 $ATALF #Antimony #Tungsten #CriticalMinerals #DelSol #WhiteSpar #UnitedStates #Defense

.@ATAA_AT4 has kicked off an #antimony refinery restart campaign ahead of schedule, advancing plans to demonstrate a US mine-to-metal supply chain. buff.ly/2r2xCuJ #ASX

We’ve commenced the restart campaign to produce antimony flake at the Del Sol Hydromet Refinery ahead of schedule, advancing AT4’s US mine-to-metal strategy. The restart campaign for the leach and electrowinning circuit at Del Sol in Amargosa Valley, Nevada has commenced using material from the White Spar Antimony Mine in Arizona, representing the first physical demonstration of the US mine-to-metal pathway underpinning AT4’s strategy. Antimony flake produced is intended to enable qualification discussions with prospective offtakers and strategic partners, including United States government agencies and defense primes, and be utilised to produce higher value specialty antimony products such as Regulus II antimony ingot and antimony trisulphide. Operating data from the campaign will support AT4’s antimony expansion studies for the Del Sol refinery, with tungsten test work continuing on material from Dutch Mountain, Tennessee Mountain and third-party sources as part of the APT tungsten expansion. Read the full ASX Announcement here: wcsecure.weblink.com.au/pdf/… #AT4 $ATALF #Antimony #Tungsten #CriticalMinerals #UnitedStates #Defense

We’ve commenced a maiden drilling program at our Dutch Mountain #Tungsten Project in Utah, with a Phase 1 program of approx. 1,000m planned across 11 holes. Tungsten anomalism at the Fraction Lode extends over ~700m along the interpreted skarn contact, with high-grade rock chip results at the Fraction Lode and Stardust workings, including 11,764 ppm W (1.48% WO₃). The land position has also been expanded with new claims staked extending coverage along favourable intrusive-limestone contacts to the south and west. Dutch Mountain is the first of two tungsten drill programs planned, with drilling at the Tennessee Mountain Tungsten Project in Nevada currently expected to commence in October 2026. Restart readiness has also advanced at the fully permitted Dutch Mountain Processing Facility, with civil works and site establishment completed. Read the full ASX Announcement here: tinyurl.com/4fzu2vx8 #AT4 $ATALF #Tungsten #CriticalMinerals

American Tungsten & Antimony lifts the lid on Dutch Mountain with maiden drilling | Media coverage by @StockheadAU tinyurl.com/mav69rd4

American Tungsten engages Metso for Nevada refinery study | Media coverage by @miningcomau tinyurl.com/4nytymzp

American Tungsten & Antimony taps Metso for Del Sol study | Media coverage by @StockheadAU tinyurl.com/mtz37ap8

Host Tylah Tully looks at @ATAA_AT4 latest news as the company looks to add tungsten production at Del Sol in Nevada, potentially using an existing US refinery rather than building a new processing plant. buff.ly/ugcAeOg #ASX

We’ve engaged Metso Finland Oy to complete an FEL1 Concept Study for an ammonium paratungstate (APT) production circuit at the Del Sol Refinery in Amargosa Valley, Nevada. The Study is to be sized to a proposed Phase 1 design capacity of 2,500 tonnes per annum of APT and will propose a pathway to a potential future Phase 2 modular expansion to 5,000 tonnes per annum. The Study design capacity is not a production target. The Study will assess an APT circuit within the existing permitted Del Sol facility, using its hydrometallurgical infrastructure and utilities, as an alternative to a standalone greenfield tungsten processing plant, and will provide the technical basis required to support future applications under United States Federal critical minerals funding programs. AT4 CEO Casper Adson has also commenced a program of meetings in Washington, D.C., including at the White House, with United States government agencies and key stakeholders. CEO Casper Adson said, “Tungsten is one of the most strategic commodities for the United States. Defence, aerospace and industrial manufacturing are all exposed as its supply is offshore and controlled by adversaries. Rebuilding the ability to convert tungsten concentrate into tungsten APT on US soil is a question of national interest.” Read the full ASX Announcement here: wcsecure.weblink.com.au/pdf/… #AT4 $ATALF #Tungsten #APT #CriticalMinerals #Defence #Aerospace #Metso

American Tungsten & Antimony Ltd (#ASX: #AT4, OTCQB: $ATALF) CEO Casper Adson has commenced a program of meetings in Washington, D.C., including at the White House, with United States government agencies and key stakeholders. The meetings are focused on advancing conversations with core stakeholders, including agencies AT4 is seeking to partner with, and on positioning the Company for government grant and funding instruments as it accelerates its US tungsten and antimony vertically integrated supply chain. A key focus is building on progress made with the US Department of Energy on the ASCEND-Sb Project, for which AT4 was selected to enter award negotiations under the Mines & Metals Capacity Expansion program. CEO Casper Adson: "Being in Washington, D.C. and meeting directly with the agencies and stakeholders that regulate United States critical minerals policy is critical for AT4. These meetings allow AT4 to put its projects, timelines and vertical integration strategy in front of federal decision-makers, and to build on conversations already underway." Mr Adson has extended his time in Washington, D.C. until Tuesday, 1 September 2026 to accommodate additional meetings with agencies and stakeholders. Pictured: AT4 CEO Casper Adson and Nexus Metals' Craig Wiita at the White House. #CriticalMinerals #Tungsten #Antimony #SupplyChain #ASX #AT4 #WashingtonDC

A secure U.S. supply of critical minerals requires more than resources in the ground, it requires domestic processing and refining capability. In our latest video, David Bernhardt, former U.S. Secretary of the Interior and Chairman of AT4’s Strategic Advisory Board, CEO Casper Adson, and Craig Wiita, CEO and President of Del Sol Refining, take us inside the Del Sol Refinery in Nevada. Del Sol is a built and permitted hydrometallurgical refinery with an existing pathway to produce electrolytic antimony flake. AT4 is also progressing plans to expand the facility into ammonium paratungstate (APT) production, as we work towards a vertically integrated U.S. supply chain for two minerals critical to defence and advanced manufacturing. The video takes you inside the refinery to see the process and infrastructure firsthand, while explaining why developing domestic sources of both antimony and tungsten, together with U.S.-based refining capacity, matters for America’s economic and national security. Watch the full video below.

A secure U.S. supply of critical minerals requires more than resources in the ground, it requires domestic processing and refining capability. In our latest video, David Bernhardt, former U.S. Secretary of the Interior and Chairman of AT4’s Strategic Advisory Board, CEO Casper Adson, and Craig Wiita, CEO and President of Del Sol Refining, take us inside the Del Sol Refinery in Nevada. Del Sol is a built and permitted hydrometallurgical refinery with an existing pathway to produce electrolytic antimony flake. AT4 is also progressing plans to expand the facility into ammonium paratungstate (APT) production, as we work towards a vertically integrated U.S. supply chain for two minerals critical to defence and advanced manufacturing. The video takes you inside the refinery to see the process and infrastructure firsthand, while explaining why developing domestic sources of both antimony and tungsten, together with U.S.-based refining capacity, matters for America’s economic and national security. Watch the full video below. $ATALF #AT4 #Antimony #Tungsten #CriticalMinerals #USCriticalMinerals #NationalSecurity #USManufacturing

American #Tungsten & #Antimony starts refinery wet table trials | Media coverage by @StockheadAU stockhead.com.au/resources/a… $ATALF #AT4

American #Tungsten & #Antimony Commences Wet Table Trials at Del Sol Refinery | Media coverage by @SmallCapsASX $ATALF #AT4 smallcaps.com.au/article/ame…