How to Invest in Antimony Stocks

What Is Antimony? And Why Are Investors Paying Attention?

Antimony is a critical mineral you’ve probably never heard of—but it’s suddenly one of the hottest commodities of 2025. This obscure metal plays a vital role in military hardware, renewable energy technologies, flame retardants, and batteries. With demand climbing and supply chains tightening, antimony prices have skyrocketed—from $23,000 per ton in May 2024 to over $60,000 per ton in May 2025, a 160% jump in just 12 months.

The main reason? China, which supplies about 50% of the world’s antimony, banned exports to the United States in late 2024. Russia, another major producer, remains under sanctions. The result is a global supply crunch, triggering panic buying and renewed interest in Western antimony producers.

For investors, this presents a rare opportunity to get early exposure to a strategic metal at the center of global supply chain realignment.

Why Antimony Is Classified as a “Critical Mineral”

Antimony (symbol: Sb) is a silvery-gray, brittle metal used mainly as a flame retardant and alloying agent. It’s also a key ingredient in semiconductors, solar panels, lead-acid batteries, night vision technology, and armor-piercing ammunition. Because it’s essential to both modern technology and national defense—but comes from limited sources—countries like the U.S. and members of the EU have designated antimony as a critical mineral.

As governments race to secure independent supply chains for defense and energy materials, investors are turning to antimony stocks as a way to profit from this high-stakes transition.

How to Invest in Antimony in 2025

Since there are no dedicated antimony ETFs or mutual funds, the best way to invest is by buying shares of mining and processing companies with direct exposure to antimony. Below are six publicly traded antimony stocks that stand out in 2025—ranging from early-stage explorers to established producers.

1. Military Metals Corp (CSE: MILI | OTCQB: MILIF)

Military Metals Corp is a Canadian exploration company focused on critical minerals, with a sharp emphasis on antimony. The company controls three past-producing antimony assets in top-tier jurisdictions: Slovakia, Nova Scotia, and Nevada. Its flagship Trojárová Project in Slovakia contains a historical resource of nearly 61,000 tons of antimony—worth over $2 billion at today’s prices. The West Gore Project in Nova Scotia was once the British Empire’s largest antimony mine, and the Last Chance Project in Nevada offers near-term exploration potential. As the West looks to rebuild its antimony supply chain outside of China, Military Metals is emerging as a strategic small-cap player with considerable upside.

2. Perpetua Resources (NASDAQ: PPTA)

Perpetua Resources is developing the Stibnite Gold Project in Idaho, one of the only domestic sources of mined antimony in the United States. Over its first six years of production, the project is expected to deliver roughly 148 million pounds of antimony—covering about one-third of U.S. demand. With support from the U.S. Department of Defense and a potential $1.86 billion federal loan, Perpetua is positioned as a cornerstone of American antimony supply. Its stock has surged in 2025 as investors recognize its unique value proposition: critical mineral production, in a safe jurisdiction, backed by government funding.

3. United States Antimony Corp (NYSE: UAMY)

United States Antimony Corporation (USAC) is the only North American company with a vertically integrated antimony operation. It operates the continent’s only primary antimony smelter in Montana and sources feedstock from Mexico, with new agreements secured in Thailand and Australia. In 2025, USAC announced a $15 million plan to expand its smelting capacity sixfold to over 300 tons per month. It’s also collaborating with Perpetua Resources to test concentrate from the Stibnite project. USAC’s infrastructure and processing capabilities make it a vital link in the U.S. antimony supply chain—and a core holding for investors betting on Western mineral independence.

4. Larvotto Resources (ASX: LRV)

Larvotto Resources is an Australian junior mining company with one of the country’s most promising undeveloped antimony deposits: the Hillgrove Project in New South Wales. The company’s share price skyrocketed over 800% in 2024 as investors began to recognize Hillgrove’s high-grade antimony-gold resource and strategic importance. With strong government support for critical minerals and rapid project advancement underway, Larvotto is attracting global attention as one of the most leveraged plays on rising antimony prices.

5. Mandalay Resources (TSX: MND | OTCQB: MNDJF)

Mandalay Resources is a mid-tier Canadian mining firm producing both gold and antimony at its Costerfield mine in Victoria, Australia. Costerfield is one of the few active antimony producers in the Western world, and recent drill results from the adjacent True Blue prospect have revealed extremely high grades—up to 20% antimony. Mandalay’s consistent production, operational expertise, and jurisdictional safety make it a solid pick for investors seeking diversified exposure to both precious and strategic metals.

6. Southern Cross Gold (ASX: SXG)

Southern Cross Gold is an Australian explorer focused on high-grade gold at its Sunday Creek Project in Victoria. While gold is the company’s main target, the project also contains significant antimony mineralization—positioning Southern Cross as a potential future supplier of critical metals. Though still in early stages, the polymetallic nature of its discovery and strong drill results make it a speculative but intriguing play for those looking to invest in emerging antimony assets.

Should You Invest in Antimony Stocks?

The 160% spike in antimony prices over the past year reflects more than just commodity market momentum—it’s a sign of deeper geopolitical and economic shifts. With China restricting exports and global demand climbing, antimony has gone from obscure to essential almost overnight. Investors who recognize this trend early have the opportunity to participate in what could be one of the most under-the-radar critical mineral booms of the decade.

Whether you’re looking for exploration-stage growth stories like Military Metals and Larvotto, or more established players like Perpetua and United States Antimony Corp, the antimony sector offers exposure to rising prices, defense-linked demand, and global supply chain realignment. As always, be sure to do your own due diligence and speak with a financial advisor—but for those looking to diversify into the critical minerals sector, antimony stocks are well worth a closer look.