US Antimony soars 16% premarket! Plans all-stock acquisition of Australian miner Larvotto to strengthen critical minerals.
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United States Antimony Corporation (USAC) has submitted a non-binding acquisition proposal to Australian miner Larvotto Resources Limited, proposing to acquire 100% of Larvotto’s equity through an all-share transaction. If successful, this deal will create one of the world’s largest antimony producers outside of China.
On October 19, USAC announced it had submitted a confidential preliminary acquisition plan, proposing a share exchange ratio of 6 shares of USAC for every 100 shares of Larvotto. Company Chairman and CEO Gary C. Evans said this move reflects the company’s determination to build a world-class enterprise in the critical minerals sector. The proposal represents a significant premium for Larvotto shareholders compared to the company’s last round of financing price announced on July 25, 2025, and its recent trading range.
The deal will be conducted via a Scheme of Arrangement under Australia’s Corporations Act 2001, and still requires formal agreement by both parties, approval by Larvotto shareholders, regulatory approval, and satisfaction of standard closing conditions. USAC recently acquired about 10% of Larvotto’s shares on the open market for cash, becoming its largest single shareholder.
This news pushed US Antimony’s pre-market share price up by 16%, reflecting market optimism about the strategic value of antimony and the prospects of industry consolidation. As an important raw material for flame retardants and military applications, antimony’s strategic importance is increasing amid global supply chain restructuring.

Deal Structure: All-Stock Acquisition Proposal
According to the plan submitted by USAC, Larvotto shareholders will receive 6 shares of USAC stock for every 100 shares held. This exchange ratio represents a significant premium compared to the most recent equity financing price announced by Larvotto on July 25 this year and its recent trading range.
The transaction will proceed via a Scheme of Arrangement under Australia’s 2001 Corporations Act. The proposal requires several conditions to be met, including negotiating and signing a binding Scheme Implementation Agreement, approval by Larvotto shareholders, regulatory approval, and the fulfillment of customary transaction conditions. USAC has already acquired approximately 10% of Larvotto’s issued capital on the open market, making it the company’s largest single shareholder.
USAC has assembled a professional advisory team for this transaction, including Jett Capital Advisors and Henslow as financial advisors, Ashurst as Australian legal advisor, and Duane Morris as US legal advisor. The company emphasized that final transaction terms are subject to negotiation and formal execution of the Scheme Implementation Agreement, and remain subject to regulatory approvals and standard closing conditions.
Strategic Positioning: Seizing Antimony Production Capacity
USAC stated in the announcement that the merger with Larvotto would create “one of the largest antimony producers in the world outside China.” Chairman and CEO Gary C. Evans commented:
“Our proposal to merge with Larvotto reflects our strong commitment to building a world-class industry player in the critical minerals sector, and our strong confidence in the strategic and cultural fit between the two organizations.”
He added that this is a "compelling opportunity" for Larvotto shareholders to participate in the upside of a larger and more diversified group with strong financial resources, global reach, and top-tier technical capabilities.
USAC positions itself as a “critical minerals and zeolite company,” with products covering antimony, cobalt, tungsten, and zeolite. The company operates processing facilities in Montana, USA, and Mexico, processing third-party ores into antimony oxide, antimony metal, antimony trisulfide, and precious metals.
Business Layout: Diversified Critical Minerals Portfolio
USAC and its subsidiaries in the US, Mexico, and Canada mainly sell antimony, zeolite, and precious metals in the US and Canada. The company’s facilities in Montana and Mexico process third-party ores to produce antimony oxide, metal antimony, antimony trisulfide, and precious metals.
Antimony oxide is used in flame retardant systems for plastics, rubber, fiberglass, textiles, paints, coatings and paper; it is also used as a fixative in paints and as a phosphor in fluorescent bulbs. Antimony metal is used in bearings, lead-acid batteries, and armaments, while antimony trisulfide is used in ammunition primers. The company also recovers precious metals, mainly gold and silver, from third-party ores at its Montana facility.
At the Bear River Zeolite facility in Idaho, USAC mines and processes zeolite, an industrial mineral used for water filtration, sewage treatment, nuclear waste and other environmental remediation, odor control, gas separation, animal nutrition, soil improvement and fertilizer applications. In 2024 and 2025, the company began acquiring mining rights and leases in Montana, Alaska, and Ontario, Canada, to expand its operations and product offerings.
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