The global magnesium hydroxide market size was estimated at USD 1,356.1 million in 2024 and is projected to reach USD 2,063.6 million by 2030, growing at a CAGR of 7.3% from 2025 to 2030. The key drivers of this market expansion include its widespread usage in wastewater treatment processes and its role as a cost-effective flame retardant.

One of the major factors influencing market growth has been regulatory developments such as the U.S. Clean Air Interstate Rule and the European Industrial Emissions Directive. These regulations represent a strategic shift towards cleaner and more sustainable industrial practices, compelling companies to adopt eco-friendly technologies. As a result, there has been a noticeable increase in the adoption of magnesium hydroxide in flue gas desulfurization, especially in coal-fired power plants where emission reduction is crucial.

Additionally, the electronics industry has contributed to rising demand. Increasingly stringent safety standards are leading to the replacement of halogenated flame retardants with more environmentally benign materials. In this context, magnesium hydroxide has emerged as a favorable alternative, thanks to its excellent thermal stability and non-toxic properties, making it highly suitable for use in electronics and other sensitive applications.

The global market for magnesium hydroxide continues to gain momentum, primarily due to its vital role in water purification and sanitation, particularly in municipal wastewater treatment systems. Growing environmental consciousness, coupled with the enforcement of stricter global pollution control measures, is further enhancing its relevance in emission reduction technologies and sustainable industrial processes.

Moreover, ongoing technological advancements in processing methods have enabled the production of high-purity grades of magnesium hydroxide. This development has unlocked new application areas in the pharmaceutical and food industries, where these purer forms are essential for manufacturing antacid medications and food additives.

Key Market Trends & Insights:

• In 2024, the Asia Pacific region emerged as the dominant player in the global magnesium hydroxide market, accounting for the largest revenue share of 36.5%. This leadership position can be attributed to the region’s rapid industrialization, growing environmental awareness, and increased investment in wastewater treatment and flame retardant applications across countries such as China, India, and Japan. The rising demand for non-toxic and cost-effective materials in manufacturing and environmental protection sectors has further strengthened the region’s market presence.

• Within the Americas, the United States continues to serve as the primary market for magnesium hydroxide. The U.S. market benefits from strong regulatory frameworks, technological advancements, and a growing focus on sustainable industrial practices. These factors contribute to steady demand across various sectors, including energy, electronics, and environmental protection.

• When segmented by grade, the industrial-grade magnesium hydroxide segment held a commanding position in the global market, representing a dominant share of 76.3% in 2024. This grade is extensively used in large-scale applications such as flue gas desulfurization, wastewater treatment, and flame retardants due to its cost-effectiveness and adequate performance characteristics. Its widespread use in diverse industrial processes underlines its significance in driving overall market growth.

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Market Size & Forecast:

• 2024 Market Size: USD 1,356.1 Million

• 2030 Projected Market Size: USD 2,063.6 Million

• CAGR (2025-2030): 7.3%

• Asia Pacific: Largest market in 2024

Key Companies & Market Share Insights:

Some of the key players actively operating in the global magnesium hydroxide market include Geopolymer Solutions, LLC and SLB, both contributing to innovation, supply chain development, and the overall competitiveness of the industry.

Among the well-established companies in this sector is Kyowa Chemical Industry Co., Ltd., a Japanese firm founded in 1947 and headquartered in Kagawa Prefecture, Japan. The company has gained global recognition for its expertise in the production of high-purity magnesium compounds, with a strong specialization in magnesium hydroxide. Utilizing its proprietary precipitation technologies and adhering to stringent quality control protocols, Kyowa has become a reliable supplier serving various critical markets including pharmaceuticals, flame retardants, and environmental applications.

Kyowa’s product portfolio supports a wide array of uses: in the pharmaceutical industry, its high-purity magnesium hydroxide is used as an active ingredient in antacids and laxatives; in the plastics and rubber industries, it serves as a flame-retardant additive; and in industrial and environmental settings, it functions as a neutralizing agent in flue gas desulfurization and wastewater treatment. The company has developed a strong international presence, with its products widely used across Asia, Europe, and the Americas. Kyowa continues to maintain its competitive advantage by consistently investing in research and development, and by innovating in application-specific solutions tailored to evolving industry needs.

In addition to established players, several emerging companies are gaining traction in the magnesium hydroxide market. Notable among them are NikoMag and Konoshima Chemical Co., Ltd., both contributing to the market's diversification and technological advancement.

NikoMag, founded in 2006 and based in Volgograd, Russia, focuses on the production of high-purity magnesium compounds. The company sources bischofite from the Svetloyarskoye deposit, enabling it to produce magnesium hydroxide with a purity of at least 99.8% and fine particle size. These qualities make NikoMag’s products highly suitable for a broad spectrum of applications across industries such as pharmaceuticals, flame retardants, wastewater treatment, and chemical manufacturing.

Key Players

• Kyowa Chemical Industry Co., Ltd.

• Elementis PLC

• NikoMag

• Premier Magnesia, LLC

• ICL

• Huber Engineered Materials

• Konoshima Chemical Co.,Ltd.

• UBE Corporation

• Nedmag B.V.

• Xinyang Minerals Group

• Martin Marietta Magnesia Specialties

• Tateho Chemical Industries Co.,Ltd.

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Conclusion:

In summary, the magnesium hydroxide market is poised for meaningful growth, driven by increasing applications in wastewater treatment and flame retardancy, alongside rising demand in pharmaceutical and environmental sectors. Asia Pacific stands out as a regional leader, while industrial grade products continue to dominate usage due to their versatility across key industries. Regulatory push for cleaner technologies, coupled with technological advancements enhancing product purity and efficiency, further boost market momentum. Despite competitive pressure from alternative materials in cost-sensitive segments, overall prospects remain strong as environmental sustainability and safety regulations continue to shape the landscape.