Key highlights

• American Tungsten & Antimony completed the Acquisition of 100% of Nexus Metals, taking ownership of the Del Sol refinery in Nevada.

• The completion was reported on 30 October, with the refinery held through a newly acquired US subsidiary, Nexus Metals LLC.

• The company has revised its deal structure and has set out Nasdaq ambitions, while the White Spar deal remains pending.

American Tungsten & Antimony (ASX:AT4) has completed its acquisition of 100% of Nexus Metals Pty Ltd, taking ownership of the Del Sol hydrometallurgical refinery in Nevada through a newly acquired US subsidiary, Nexus Metals LLC. The completion was reported on 30 October in an ASX update by Pinnacle Minerals, which had a memorandum of understanding linked to Nexus.

Chief executive Casper Adson said the company now owns an established US refinery that has already demonstrated the ability to produce high-purity antimony metal from American-mined material.

What the refinery has done so far

In September, the company reported producing antimony ingots using material mined at the White Spar project in Arizona under pre-completion arrangements. That showed a physical pathway from US-mined feed to refined antimony metal. Product qualification and commercial-scale operation are still to be advanced, so the refinery has not yet demonstrated sustained commercial output.

The company plans to expand Del Sol into tungsten processing, which would require additional equipment and permits.

Why ownership matters

The answer to the headline question is control over the Downstream step. Many junior miners must sell concentrate to third-party processors, often overseas. Owning a refinery could let AT4 capture more of the value chain and Supply refined metal directly to US customers, which is attractive given US policy emphasis on domestic critical mineral supply.

Ownership also brings responsibilities, including operating costs, environmental compliance and the need for reliable feed.

A revised deal structure

AT4 revised the original acquisition structure to take direct ownership of the underlying US refinery assets, replacing a previously proposed acquisition of shares in existing project companies. The company expects this to simplify its ownership structure and associated US regulatory and financial reporting, including historical financial information. It also allows the refinery's Water Pollution Control Permit to be transferred or reissued to Nexus Metals LLC.

The underlying commercial terms of the broader transaction remain unchanged,.

Nasdaq ambitions

The completed transaction advances AT4's proposed Nasdaq listing, which remains subject to regulatory and exchange approvals. The company believes the revised structure provides a more straightforward path. A US listing could broaden its investor base, though it also brings additional compliance costs.

White Spar still pending

The acquisition of White Spar has not been completed. It covers interests associated with the White Spar, Challenge and Morning Star patented claims, plus 17 unpatented claims. Completion remains subject to conditions including third-party Lease consents and title confirmations. The consideration allocated to White Spar will be payable only if that acquisition completes.

That matters because White Spar is the source of the feed used in the September ingot work. Without it, Del Sol would need other feed sources.

Tungsten and antimony context

Both metals are classed as critical minerals in the United States, and China dominates global supply. Prices for both have been strong in recent periods, which has encouraged new projects, but prices can change.

Company context

The company lodged a cleansing notice and its Quarterly Report on 30 October.

What to watch

Investors may watch for White Spar completion, permit transfers, product qualification and the Nasdaq listing process.

Feed is the critical input

A refinery is only as valuable as the material it can process. Del Sol's Economics will depend on securing steady volumes of antimony and, later, tungsten feed of suitable quality. That could come from AT4's own projects, including White Spar if completed, or from third-party suppliers. Long-term feed contracts would reduce uncertainty, and investors may look for evidence of them in future updates. No contracts had been announced in the material reviewed.