アンチモン市場シェア分析、業界動向と統計、成長予測 2026-2031年

アンチモン市場規模は、2025年に126.99キロトンと評価され、2026年の129.12キロトンから2031年には140.27キロトンに成長するとMordor Intelligenceでは予測されており、予測期間（2026～2031年）のCAGRは1.67%です。急速な価格上昇により、中国からの供給への構造的な依存が露呈しました。戦略的な需要は、アンチモンの冶金特性と電子特性に代替品がほとんどないエネルギー貯蔵、半導体ドーピング、防衛電子機器へと引き続きシフトしています。欧米の鉱山会社、精製会社、政府は、2024年12月の中国の輸出禁止措置に対抗するため、アイダホ州、モンタナ州、オーストラリアで新たな生産能力を拡大しています。この措置により、ベンチマーク価格は2倍になり、垂直統合プロジェクトが促進されました。一方、欧米における毒性に関する規制当局の監視強化は、ハロゲンフリー難燃剤への緩やかな移行を加速させており、販売量の伸びは抑制されるものの、より高純度で特殊なグレードへの需要が高まっている。特に半導体グレードの材料においては、競争上の差別化要因はコストから純度、原産地、供給の安定性へとシフトしつつある。

主要レポートの要点

• 製品タイプ別では、2025年に三酸化アンチモンが56.48%のシェアで首位となり、五酸化アンチモンは2031年まで年平均成長率（CAGR）2.5%で成長すると予測されています。
• 用途別では、2025年に難燃剤がアンチモン市場規模の55.02%を占め、セラミックスとガラスは2031年まで年平均成長率3.3%で成長しています。
• 鉱石タイプ別では、輝安鉱が2025年に96.21%のシェアで圧倒的なシェアを占め、2031年まで年平均成長率1.75%で成長すると予測されています。
• 最終用途産業別では、2025年にプラスチックとポリマーがアンチモン市場シェアの48.76%を占め、エネルギー貯蔵と公益事業は2031年まで年平均成長率3.26%で成長すると予測されています。
• 地域別では、アジア太平洋地域は2025年には86.67%のシェアを獲得し、2031年まで年平均成長率3.12%で拡大する見込みです。

Antimony Market Analysis by Mordor Intelligence

The Antimony Market size was valued at 126.99 kilotons in 2025 and is estimated to grow from 129.12 kilotons in 2026 to reach 140.27 kilotons by 2031, at a CAGR of 1.67% during the forecast period (2026-2031). A rapid price escalation exposed structural reliance on Chinese supply. Strategic demand continues to pivot toward energy storage, semiconductor doping, and defense electronics, where antimony’s metallurgical and electronic properties have few substitutes. Western miners, refiners, and governments are scaling new capacity in Idaho, Montana, and Australia to counter China’s December 2024 export ban, a move that doubled benchmark prices and spurred vertically integrated projects. Meanwhile, regulatory scrutiny over toxicology in Europe and North America is accelerating a gradual shift to halogen-free flame retardants, tempering volume growth but pushing value toward higher purity and specialty grades. Competitive differentiation is shifting away from cost and toward purity, provenance, and security of supply, especially for semiconductor-grade material.

Key Report Takeaways

• By product type, antimony trioxide led with 56.48% share in 2025, while antimony pentoxide is projected to grow at a 2.5% CAGR to 2031.
• By application, flame retardants accounted for 55.02% of the Antimony market size in 2025, and ceramics and glass are advancing at a 3.3% CAGR through 2031.
• By ore type, stibnite dominated with a 96.21% share in 2025 and is advancing at a 1.75% CAGR through 2031.
• By end-user industry, plastics and polymers held 48.76% of the Antimony market share in 2025, while energy storage and utilities are projected to post a 3.26% CAGR through 2031.
• By geography, Asia-Pacific captured 86.67% share in 2025 and is expanding at a 3.12% CAGR to 2031.

Note: Market size and forecast figures in this report are generated using Mordor Intelligence’s proprietary estimation framework, updated with the latest available data and insights as of January 2026.

Global Antimony Market Trends and Insights

Grid-Scale Lead-Acid and Liquid-Metal Battery Expansion in Asia-Pacific

Utility-scale storage is increasingly shaping the Antimony market. In February 2024, Ambri secured Series D financing and is set to deliver liquid-metal batteries, reliant on antimony-lead cathodes, to Xcel Energy and Vistra. While lead-acid batteries continue to dominate telecom backups throughout Southeast Asia, they incorporate antimony in their grid alloys to enhance deep-cycle durability. China’s vast fleet of internal-combustion vehicles, even as electrification gains momentum, bolsters baseline demand, anchoring the Antimony market firmly in the automotive sector. Although the rise of calcium-tin alloys might reduce antimony usage in batteries, grid-scale liquid-metal systems counteract this by consuming significant amounts of high-purity antimony per module. This dynamic not only boosts aggregate volumes in the medium term but also enhances the value of supply adhering to stringent purity standards.

PET Resin Boom Boosting Sb-Catalyst Use

Antimony trioxide serves as the primary polymerization catalyst for over 90% of polyethylene terephthalate (PET) production. New PET facilities in Saudi Arabia and Vietnam are set to begin operations before 2027. Teijin’s recent patent on ternary catalyst mixtures underscores the industry’s push to reduce residual antimony while maintaining kinetic benefits. However, regulators are keeping a close watch. The European Chemicals Agency is currently reevaluating the permissible migration limits for food-contact packaging. This scrutiny introduces compliance costs, potentially steering the industry towards titanium-based systems for premium products. While low capital expenditure and established expertise currently uphold antimony’s dominance as a catalyst, downstream producers are actively exploring alternatives to mitigate regulatory risks. This cautious approach tempers the growth outlook for the antimony market beyond the immediate two-year horizon.

China Export Controls Driving Non-China Supply-Chain Investment

In August 2024, Beijing introduced a licensing regime, followed by a ban on U.S. exports in December 2024. These moves led to a dramatic quadrupling of prices in Rotterdam within just ten months. The upheaval spurred a surge of investments in North America and Australia. In January 2025, Perpetua Resources clinched a Defense Production Act agreement and a Final Record of Decision for its Stibnite project. The United States Antimony Corporation resumed smelting operations in Mexico and kicked off mining activities in Montana in 2025. Meanwhile, Korea Zinc sought national core-technology status, a move that curtails foreign ownership and solidifies state backing for its diaphragm-electrolysis process. While these initiatives contribute relatively modest physical capacity, their geopolitical weight far overshadows this output, reshaping procurement strategies across defense, semiconductor, and energy-storage sectors.

Antimony Alloying in Next-Gen Calcium/Sodium Liquid-Metal Batteries

Calcium-antimony and sodium-antimony batteries, targeting a lifespan of 20 years and costs below USD 100 per kWh, are positioning antimony to transition from mere commodity status to that of a strategic energy material. While Ambri’s immediate deployments will only tap into a modest tonnage, ongoing negotiations for a pipeline could see demand surge significantly in the coming years. Perpetua is channeling volumes from Stibnite directly into Ambri’s cathodes, crafting a vertically integrated supply chain that sidesteps Chinese dominance. Although the technology grapples with thermal-management expenses, a shift in policy incentives favoring long-duration storage could propel the Antimony market into a demand surge reminiscent of the 1980s flame-retardant boom.

Volatile Chinese Export Quotas and Price Spikes

Benchmark Rotterdam prices surged significantly from December 2023 to February 2025. This sharp rise has squeezed margins for compounders and battery makers, who find it challenging to pass on these costs. In Europe and North America, small and mid-sized processors are feeling the brunt of this cash-flow strain, with some even pausing production until prices stabilize. Korea Zinc’s annual supply remains limited, accounting for a small fraction of the global mined output. This limited supply leaves Western buyers vulnerable to policy shifts in Beijing. As projects like Stibnite gear up, the ongoing volatility is projected to impact the forecasted CAGR.

Shift Toward Halogen-Free Flame Retardants in EU and NA

Regulatory bodies on both sides of the Atlantic are tightening rules on halogenated systems synergized with antimony trioxide. The European Chemicals Agency’s ongoing review could restrict antimony-containing formulations in consumer electronics and textiles[1]. U.S. TSCA evaluations encourage pre-emptive reformulation, especially in children’s products. While antimony trioxide enjoys a strong cost advantage—halogen-free systems need double or triple loadings to match performance—the compliance burden and brand-image risk are accelerating substitution. The Antimony market will thus see slower growth in North America and Europe, even as Asia-Pacific demand rises.

Segment Analysis

By Product Type: Trioxide Dominance Faces Pentoxide Specialty Gains

Antimony trioxide held 56.48% of the 2025 volume, reflecting its entrenched roles in PET catalysis and flame retardancy. However, its growth trajectory faces constraints due to Europe’s shift towards halogen-free alternatives. Antimony pentoxide is expanding at a 2.5% CAGR as specialty glass and photovoltaic manufacturers seek its superior decolorizing and fining capabilities. Metal ingots, boasting a premium purity from Korea Zinc, cater to the high-purity demands of the military and semiconductor sectors. While lead-acid battery alloys are seeing reduced antimony loadings due to the rise of calcium-tin formulations, grid-scale batteries are helping to offset this decline. Additionally, niche products like antimony trisulfide, favored in pyrotechnics, command high margins but contribute negligible tonnage, highlighting the diverse dynamics within the antimony market.

While pentoxide’s ascent bolsters specialty revenues, trioxide’s dominance remains unchallenged outside Europe and North America. Teijin’s advancements in ternary catalysts could extend trioxide’s reign in the PET sector by curbing migration without compromising kinetics. Even a slight success in this endeavor could insulate a significant portion of global antimony demand from imminent substitutions. Thus, the antimony market is characterized by a volume-heavy, regulation-sensitive trioxide foundation, complemented by the rapid growth of pentoxide and a niche high-purity ingot segment that drives significant profits.

By Application: Flame Retardants Lead, Ceramics Accelerate

Flame retardants consumed 55.02% of the 2025 volume, but that dominance is losing momentum in the West. Ceramics and glass are growing at a 3.3% CAGR thanks to photovoltaic glass fining and antimony-doped monocrystalline silicon. Catalyst demand in PET polymerization remains substantial but is sensitive to regulatory pressure. Specialty electronic uses, measured in kilograms, carry high margins and strategic significance. This application mix indicates a transition toward fewer but higher value streams, creating a cushion for aggregate revenues even if flame-retardant tonnage erodes in mature economies.

Ceramic demand provides a hedge against regulatory headwinds, particularly as solar-glass producers secure antimony pentoxide to improve clarity and bubble removal. Batteries offer another hedge: although per-unit antimony intensity is falling in automotive starters, grid-scale projects require kilogram-level loadings per module. Therefore, the Antimony market maintains diversified demand drivers that temper downside risk from any single application class.

By Ore Type: Stibnite Monopoly Reflects Geological Scarcity

Stibnite contributed 96.21% of raw material feedstock in 2025. The segment grows at a 1.75% CAGR as no alternative primary ore matches its antimony content. By 2031, Perpetua’s Idaho project is set to introduce additional supply, slightly diversifying the origin within the same ore family. While secondary production from lead-zinc smelting contributes a small share to the supply, it boasts higher purity and lower environmental costs. This makes it an appealing option for integrated refiners, such as Korea Zinc. However, depletion at China’s Xikuangshan and policy instabilities in Myanmar highlight a significant geological bottleneck. Although recycling end-of-life batteries could bolster supply, the current pyrometallurgical flowsheet’s tendency to lose tin to slag limits the usability of the recovered antimony. Without significant advancements in hydrometallurgy, the antimony market remains closely tied to stibnite geology.

By End-User Industry: Plastics Dominate, Energy Storage Surges

Plastics captured 48.76% of end-use in 2025, anchored in flame-retardant formulations for wire harnesses and appliance housings. The segment’s forward growth is modest as EU and U.S. regulations encourage halogen-free alternatives. Energy storage and utilities were the fastest-growing at a 3.26% CAGR. Ambri’s pipeline and resilient telecom backup demand underscore this sector’s upside potential. Automotive and transportation sectors utilized lead-acid batteries and bearing alloys. Chemicals and catalysts are at risk of substitution. While the semiconductor and defense sectors consumed minimal quantities, they significantly influenced price premiums for 5N-purity material. Consequently, the Antimony market is divided between high-volume plastics, which grapple with regulatory challenges, and the rapidly expanding energy storage sector, presenting a strategic advantage.

Geography Analysis

Asia-Pacific held 86.67% of global volume in 2025 and is expanding at a 3.12% CAGR. In 2024, China refined antimony but operated at only one-third of its installed capacity, grappling with ore scarcity and compliance costs. Rising demand in India’s plastics and two-wheeler sectors, coupled with Vietnam’s PET surge, solidifies Asia-Pacific’s central role in the Antimony market. Despite domestic refining, Japan remains a net importer, predominantly sourcing from China and Vietnam[2]. Meanwhile, South Korea’s Korea Zinc increased its output and plans a modest rise, with a portion of the production targeted for Western markets.

North America is gearing up for a supply expansion. Projects like Perpetua’s Stibnite and operations by United States Antimony in Mexico and Montana are poised to meet a significant portion of domestic needs in the coming years. This demand is driven by sectors like defense electronics, grid-scale storage, and semiconductor fabs, especially with the reshoring push under the CHIPS and Science Act. While Europe relies heavily on imports, tightening regulations on flame retardants are prompting processors like Belgium’s Campine to pivot towards recycling. In the Middle East-Africa/South America region, Bolivia and Morocco are key players in diversifying the supply, but their combined output offers only limited relief.

Despite Western diversification efforts, the Asia-Pacific market share is expected to decline slightly in the coming years, as Chinese smelters continue to benefit from economies of scale in refining. Yet, driven by political motivations for resilient supply chains, a larger portion of the Antimony market volumes is anticipated to flow through non-Chinese channels, even if the absolute tonnage doesn’t keep pace with regional demand growth.

Competitive Landscape

The antimony market is moderately consolidated. Technology differentiation is sharpening. Korea Zinc’s diaphragm-electrolysis delivers 5N purity metal suitable for quantum devices and radar systems, fetching prices multiples above flame-retardant grades. Recycling specialists are experimenting with hydrometallurgical flowsheets to recover antimony from spent lead-acid batteries without losing tin, a development that could unlock secondary supply and lessen exposure to Chinese concentrates. Price volatility has compressed margins for downstream compounders, forcing producers to compete on security and purity rather than cost.

List of Companies Covered in this Report:

• Alkane Resources Ltd.
• AMG Advanced Metallurgical Group N.V.
• Belmont Metals Inc.
• Campine NV
• GUANGXI HUAYUAN METAL CHEMICAL CO., LTD.
• Hunan Gold Co., Ltd.
• Hunan Province Anhua Huayu Antimony Industry Co., Ltd.
• Koreazinc
• Lambert Metals International Limited
• Nihon Seiko Co., Ltd.
• Perpetua Resources
• SPMP (Strategic and Precious Metals Processing)
• SUZUHIRO CHEMICAL CO.,LTD.
• United States Antimony Corporation
• Xikuangshan Shanxing Antimony Industry Co., Ltd.
• Yiyang City Huachang Antimony Industry Co.,Ltd
• Youngsun (Guangdong Yuxing) Fire-Retardant New Material Co.
• Yunnan Muli Antimony Industry Co., Ltd.

Additional Benefits:

• The market estimate (ME) sheet in Excel format
• 3 months of analyst support

Table of Contents

1 Introduction
1.1 Study Assumptions and Market Definition
1.2 Scope of the Study

2 Research Methodology

3 Executive Summary

4 Market Landscape
4.1 Market Overview
4.2 Market Drivers
4.2.1 Grid-scale lead-acid and liquid-metal battery expansion in Asia-Pacific
4.2.2 PET resin boom boosting Sb-catalyst use
4.2.3 China export controls driving non-China supply-chain investment
4.2.4 Antimony alloying in next-gen calcium/​sodium liquid-metal batteries
4.2.5 Semiconductor-grade Sb for 5G and quantum devices
4.3 Market Restraints
4.3.1 Volatile Chinese export quotas and price spikes
4.3.2 Shift toward halogen-free flame retardants in EU and NA
4.3.3 REACH/TSCA toxicology compliance costs
4.4 Value Chain Analysis
4.5 Production Analysis
4.6 Porter’s Five Forces
4.6.1 Bargaining Power of Suppliers
4.6.2 Bargaining Power of Buyers
4.6.3 Threat of New Entrants
4.6.4 Threat of Substitutes
4.6.5 Degree of Competition
4.7 Supply Analysis
4.8 Regulatory Policy Analysis
4.9 Trade Analysis
4.10 Price Trend Analysis
4.11 Production Cost Analysis

5 Market Size and Growth Forecasts (Volume)
5.1 By Product Type
5.1.1 Metal Ingot
5.1.2 Antimony Trioxide
5.1.3 Antimony Pentoxide
5.1.4 Alloys
5.1.5 Other Product Types (Granules, Single Crystals, etc.)
5.2 By Ore type
5.2.1 Stibnite
5.2.2 Others
5.3 By Application
5.3.1 Flame Retardants
5.3.2 Batteries
5.3.3 Ceramics and Glass
5.3.4 Catalyst
5.3.5 Other Applications (Semiconductor, Defense, etc.)
5.4 By End-user Industry
5.4.1 Plastics and Polymers
5.4.2 Automotive and Transportation
5.4.3 Chemicals and Catalysts
5.4.4 Electronics and Semiconductor
5.4.5 Energy Storage and Utilities
5.4.6 Other Industries
5.5 By Geography
5.5.1 Asia-Pacifc
5.5.1.1 China
5.5.1.2 India
5.5.1.3 Japan
5.5.1.4 South Korea
5.5.1.5 ASEAN Countries
5.5.1.6 Rest of Asia-Pacific
5.5.2 North America
5.5.2.1 United States
5.5.2.2 Canada
5.5.2.3 Mexico
5.5.3 Europe
5.5.3.1 Germany
5.5.3.2 United Kingdom
5.5.3.3 France
5.5.3.4 Italy
5.5.3.5 Spain
5.5.3.6 Rest of Europe
5.5.4 South America
5.5.4.1 Brazil
5.5.4.2 Argentina
5.5.4.3 Chile
5.5.4.4 Rest of South America
5.5.5 Middle-East and Africa
5.5.5.1 Saudi Arabia
5.5.5.2 United Arab Emirates
5.5.5.3 South Africa
5.5.5.4 Rest of Middle-East and Africa

6 Competitive Landscape
6.1 Market Concentration
6.2 Strategic Moves
6.3 Market Share(%)/ Ranking Analysis
6.4 Company Profiles
6.4.1 Alkane Resources Ltd.
6.4.2 AMG Advanced Metallurgical Group N.V.
6.4.3 Belmont Metals Inc.
6.4.4 Campine NV
6.4.5 GUANGXI HUAYUAN METAL CHEMICAL CO., LTD.
6.4.6 Hunan Gold Co., Ltd.
6.4.7 Hunan Province Anhua Huayu Antimony Industry Co., Ltd.
6.4.8 Koreazinc
6.4.9 Lambert Metals International Limited
6.4.10 Nihon Seiko Co., Ltd.
6.4.11 Perpetua Resources
6.4.12 SPMP (Strategic and Precious Metals Processing)
6.4.13 SUZUHIRO CHEMICAL CO.,LTD.
6.4.14 United States Antimony Corporation
6.4.15 Xikuangshan Shanxing Antimony Industry Co., Ltd.
6.4.16 Yiyang City Huachang Antimony Industry Co.,Ltd
6.4.17 Youngsun (Guangdong Yuxing) Fire-Retardant New Material Co.
6.4.18 Yunnan Muli Antimony Industry Co., Ltd.

7 Market Opportunities and Future Outlook
7.1 Recycling of end-of-life lead-acid batteries
7.2 Development of domestic refining outside China
7.3 White-space and unmet-need assessment

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