Magnesium hydroxide market seen reaching $1.1 billion by 2031

Allied Market Research says the global magnesium hydroxide market was worth $0.6 billion in 2021 and is projected to hit $1.1 billion by 2031. Asia-Pacific held the largest share in 2021, while wastewater treatment and steel industry demand are expected to support growth.

Why it matters: - The magnesium hydroxide market is expanding across wastewater treatment, flame retardants, environmental protection and pharmaceuticals. - The forecast points to steady demand from industrial users, water treatment operators and manufacturers through 2031. - A bigger market could create room for suppliers tied to slurry products, industrial processing and regional infrastructure buildout.

What happened: - Allied Market Research published a report on the global magnesium hydroxide market on June 17, 2026. - The market was valued at $0.6 billion in 2021. - The market is projected to reach $1.1 billion by 2031. - The report forecasts a 5.7% CAGR from 2022 to 2031. - A sample report is available here. - Purchase options for the full data set are available here.

The details: - Rising demand for magnesium hydroxide in environmental protection, flame retardants and pharmaceutical applications is a key growth driver. - Increasing adoption in wastewater treatment and industrial processes is also supporting demand. - Expanding use in the steel industry is expected to create additional growth opportunities during the forecast period. - Availability of alternative materials remains a market restraint. - The slurry segment led the market in 2021 with more than half of total revenue. - The slurry segment is expected to keep its lead through the forecast period. - The others form segment is projected to post the fastest growth, with a 6.6% CAGR from 2022 to 2031. - Wastewater treatment was the largest application in 2021, accounting for nearly one-third of global revenue. - The wastewater treatment segment is expected to remain dominant as environmental regulations tighten and investment in water treatment infrastructure rises. - The others application segment is projected to grow the fastest, at a 7.4% CAGR over the forecast period.

Between the lines: - Asia-Pacific held nearly two-fifths of the global market in 2021 and is expected to stay the leading region through 2031. - The region is projected to register the highest CAGR at 6.7%. - Rapid industrialization, more wastewater treatment facilities and stronger demand from pharmaceutical and manufacturing sectors are supporting that regional lead. - The report also covers North America, Europe and LAMEA, signaling a broader but slower-growing opportunity set outside Asia-Pacific. - The competitive field includes Albemarle Corporation, Elementis, Huber Engineered Materials, Kisuma Chemicals B.V., Konoshima Chemical Co., Ltd., Kyuwa Chemicals, Loba Chemie Pvt. Ltd., Martin Marietta Materials Ltd., Nedmag B.V., Osian Marine Pvt. Ltd., Premier Magnesia LLC, Tateho Chemical Industries Co., Ltd., TIMAB Magnesium, Ube Materials Industries Ltd. and Xinyang Mineral Group. - Market participants are expanding through product launches, collaborations, capacity additions, joint ventures, acquisitions and partnerships.

What's next: - Magnesium hydroxide suppliers will likely focus on wastewater treatment, industrial uses and steel applications to capture the fastest-moving demand. - Asia-Pacific should remain the main growth engine as industrial activity and water treatment investment continue. - Alternative materials will remain a pressure point for pricing and share gains. - Further consolidation and capacity expansion are likely as companies try to strengthen market position.