U.S. Antimony enhances processing capabilities with acquisition of Montana complex

It sits within 250 miles of the Thompson Falls smelter — one of the only facilities of its kind in North America

Rowan Dunne

Published

1 hour ago

United States Antimony Corp (NYSEAMERICAN: UAMY) shares spiked by over 11 per cent Tuesday after the company finalized its acquisition of an operational flotation facility in Radersburg, Montana. The cash deal was valued at US$4.75 million.

The takeover, finalized on Jan. 16, includes the “Critical Minerals and ZEO Company” site, equipped with gravity and flotation circuits capable of processing antimony, cobalt, tungsten, zeolite and other metals and minerals. These include gold, silver, copper, lead, zinc, platinum, palladium and rare earths.

U.S. Antimony has allocated US$2 million to improving the complex. The site is situated 250 miles from the antimony processing specialist’s Thompson Falls smelter.

This acquisition will help bolster military-grade antimony trisulfide production in the state. The new facility has replaced a previously leased Montana complex in Philipsburg that the company was experiencing difficulties with due to disagreements with its owners.

“In order for us to concentrate our raw ore from both Alaska and Montana, we must first utilize a modern flotation mill to properly concentrate the material to a high enough level that we can then feed the various furnaces located in our smelters in order to produce mil-spec antimony trisulfide,” CEO and Chairman Gary Evans explained.

“This transaction announced today is another ‘leg on our stool’ as a fully integrated antimony company in order to maximize profitability, control our destiny, and meet the ever-growing needs of our customers whether they be industrial or the federal government,” he added.

Acquiring the new processing site builds on UAMY’s ongoing expansion activities and ambitions in Montana. U.S. Antimony recently restarted small-scale mining at the Stibnite Hill site next to its Thompson Falls smelter. Furthermore, the company is in the midst of completing a major expansion at Thompson Falls valued at US$15 million. Slated for completion next month, it is expected to boost refining capacity by 500 per cent.

Alongside UAMY’s Madero processing plant in Mexico, Thompson Falls is one of only two operational antimony smelters in North America.

Soaring antimony prices drive these expansion efforts. Chinese export curbs, Russian supply disruptions and rising demand from defence and solar industries have pushed prices sharply higher.

$UAMY Sharing a few updated shots from the expansion work at our Montana facility. The new structure going up is significantly larger than the original building and is designed to house a modern furnace system and updated processing lines.
The size of this buildout gives us room… pic.twitter.com/0oIOJkjTPZ

— United States Antimony Corporation NYSE: UAMY (@NYSE_UAMY) December 9, 2025

UAMY stock shines in January

U.S. Antimony’s Montana operations are essential for the industry, producing essential antimony oxide for batteries and flame retardants, trisulfide for ammunition and semiconductors, and metal for alloys and military applications.

Additionally, the American government views the company as a national security asset, as evidenced by a recently initiated Pentagon supply contract valued at US$245 million.

UAMY has performed well on the NYSE American exchange in 2026, rising by over 75 per cent year-to-date at US$9.27 per share. The mineral processing operator’s market cap currently stands at approximately US$1.3 billion. Twelve-month trailing revenue is sitting at US$31.8 million.

As an influential company like U.S. Antimony establishes robust processing capabilities in Montana, other important efforts relevant to the industry are underway elsewhere in the West. NevGold Corp (CVE: NAU) (OTCMKTS: NAUFF) (FRA: 5E50), for instance, is advancing Nevada’s Limousine Butte antimony-gold project toward potential near-term production from historical leach pads.

Activities like these reflect a sector-wide drive to reduce reliance on foreign suppliers in the United States.

CRITICAL MINERAL WARS
Gary Evans, CEO of $UAMY, who has taken multiple companies public and by age 27 had 9 years banking experience at a Canadian mercantile bank tells a fascinating story of how precious Antimony use is.

There are only two antimony smelters in the western… pic.twitter.com/Jc3fyEsOnZ

— Anni (@anni_sen) January 17, 2026