Antimony rarely dominates headlines in discussions about the global energy transition or critical minerals. Yet within modern defence and advanced industrial supply chains, this metal holds a uniquely strategic role. Antimony strengthens lead alloys used in ammunition, enhances flame-retardant materials found in military electronics, and contributes to infrared sensors, semiconductors, and specialized alloys used in aerospace and defence technologies. As geopolitical tensions rise and military spending increases across Europe, North America, and Asia, the strategic importance of antimony has grown significantly.
The challenge for many industrial economies lies in the highly concentrated nature of global antimony supply. Annual mine production is relatively small—roughly 110,000 to 120,000 tonnes worldwide—but more than 60 percent of this supply historically comes from China. Additional output is produced in countries such as Tajikistan and Russia. Even more concentrated is the refining stage, particularly the production of antimony trioxide, a compound widely used in flame-retardant materials and industrial applications. China dominates this segment of the supply chain as well.
This concentration has raised concerns among policymakers and defence planners. Both the European Union and the United States have formally designated antimony as a critical raw material, highlighting the risk that supply disruptions could affect sensitive industries. Although the overall market size is relatively modest compared with other metals, the role of antimony in military technologies—from armour-piercing ammunition to missile guidance systems—makes it strategically indispensable.
Renewed Exploration Across Eurasia
In response to these supply risks, a new wave of exploration activity is underway across Eurasia. Junior mining companies are leading efforts to identify and develop new antimony resources in both historic mining districts and previously underexplored regions. These projects have the potential to diversify supply chains for one of the defence sector’s most sensitive materials.
One of the most promising exploration regions is Turkey, where numerous hydrothermal vein systems contain stibnite, the primary sulphide mineral of antimony. Geological surveys have identified more than twenty antimony occurrences across Anatolia, many located within volcanic belts that also host gold and base metals. These polymetallic systems are particularly attractive for mining companies because revenues from precious metals can improve the economic viability of antimony production.
Among the exploration projects attracting attention is the Briggs Creek system, where quartz–stibnite veins cut through volcanic and sedimentary host rocks. Early drilling campaigns indicate multiple mineralized structures extending for several kilometres. While resource estimates remain preliminary, the project highlights the broader potential of Turkey’s mineral belts. If developed, Turkish antimony production could become strategically important for European supply chains due to the country’s proximity to industrial markets.
Central Europe’s Polymetallic Deposits
Central Europe also hosts several promising antimony resources. In Slovakia, hydrothermal mineral systems in the Carpathian Mountains contain deposits enriched in both gold and antimony. Exploration efforts have intensified around the Trojárová project, where stibnite mineralization occurs within quartz veins associated with gold-bearing structures.
Polymetallic deposits like these are particularly attractive from an economic perspective. Gold production can offset the costs associated with mining and processing antimony, creating projects that are more resilient to fluctuations in commodity prices.
Central Asia’s Historic Antimony Provinces
Further east, the mountainous regions of Tajikistan and Kyrgyzstan remain among the most important antimony provinces in the world. During the Soviet era, these countries supplied a substantial share of global antimony production. Their deposits are typically found in hydrothermal systems formed along tectonic fault zones, where mineralizing fluids deposited stibnite within quartz veins.
In recent years, exploration and development activity has accelerated again. One example is Tajikistan’s Pakhandara project, which is moving toward production with plans to process more than 150,000 tonnes of ore annually and produce around 5,000 tonnes of antimony. Projects like this demonstrate the continuing importance of Central Asia in the global antimony supply chain.
However, these developments also highlight the complex geopolitics of the sector. Several mining ventures in the region involve partnerships with Chinese investors, reflecting China’s long-standing influence in antimony mining and refining. While such investment helps bring new mines into production, it can also reinforce the country’s dominant role in the global market.
Europe’s Effort to Rebuild Domestic Supply
In response, European countries are increasingly interested in reviving their own antimony resources. One example is found in Spain’s Extremadura region, where one of Europe’s largest antimony mines operated throughout much of the twentieth century before closing in the 1980s.
Today, modern exploration programs are revisiting the district with advanced geological models and geophysical technologies. New studies suggest that mineralization extends deeper than previously mined sections of the hydrothermal vein system. If further exploration confirms sufficient resources, the project could become the first major antimony mine developed within the European Union in decades.
Meanwhile, in the Caucasus region, Armenia hosts several polymetallic deposits where antimony occurs alongside gold and base metals. These mineral systems formed during volcanic and tectonic activity that produced mineral-rich veins across the region’s mountainous terrain. Exploration campaigns are focusing on zones where stibnite mineralization overlaps with gold-bearing quartz veins, potentially creating economically viable mining projects.
The Processing Challenge
While new mining projects are crucial, developing a resilient antimony supply chain requires more than ore extraction. Antimony must undergo several processing stages before it can be used in industrial applications. In most cases, the metal is converted into antimony trioxide, which is then used in flame-retardant materials, electronics, and other specialized products.
Currently, China dominates global refining capacity for this compound. As a result, Western governments are increasingly evaluating the possibility of establishing domestic processing facilities. Without such infrastructure, new mining operations alone may not significantly reduce supply dependence.
Market Volatility and Strategic Demand
Antimony markets are known for significant price volatility, largely due to the metal’s small market size and limited number of producing mines. Supply disruptions—whether caused by export restrictions, political instability, or mine closures—can lead to rapid price increases. Conversely, market downturns can delay exploration and development projects.
Despite these fluctuations, the broader geopolitical landscape suggests that demand for antimony will remain strong. Global defence spending exceeded 2.4 trillion dollars in 2024, and many countries are continuing to expand military budgets amid rising geopolitical tensions. Because antimony alloys are essential for several defence applications, the metal is likely to remain strategically important even during economic downturns.
A Strategic Mineral for the Future
The growing pipeline of exploration projects across Europe and Central Asia represents more than a revival of a niche mining sector. It reflects a broader effort to reconfigure global supply chains for strategic materials. Governments are increasingly willing to support projects that improve supply security for metals essential to national defence and technological industries.
For junior mining companies, antimony exploration presents both opportunities and risks. Deposits are often smaller than those of major base metals, which can make project economics sensitive to market conditions. However, the metal’s strategic importance may attract government backing and long-term investment.
Across the mountainous landscapes of Central Asia and the historic mining districts of Europe, exploration teams are continuing to map the geological structures that host antimony mineralization. Their discoveries could gradually reshape a market long dominated by a single producer, creating a more diversified and resilient supply chain for one of the defence sector’s most critical metals.
