Top 10 Companies in the Anhydrous Calcium Sulfate Market (2026): Market Leaders Driving Global Growth

MARKET INSIGHTS

Global anhydrous calcium sulfate market size was valued at USD 875 million in 2025. The market is projected to grow from USD 912 million in 2026 to USD 1.25 billion by 2034, exhibiting a compound annual growth rate (CAGR) of 4.1 % during the forecast period.

Anhydrous calcium sulfate, commonly known as anhydrite, is an inorganic compound with the chemical formula CaSO₄. It is a white, odorless powder or solid that is produced by the dehydration of gypsum and is completely water‑free, distinguishing it from hemihydrate (plaster of Paris) or dihydrate (gypsum) forms. This material is prized for its high sulfate content and stability, serving as a crucial raw material and additive.

The market’s steady growth is primarily driven by its extensive use as a cost‑effective filler and setting regulator in the construction industry, particularly in cement and wallboard production. Furthermore, demand from the food and pharmaceutical sectors, where it is used as a desiccant, coagulant, and calcium fortifier, is a significant contributor. Key global players such as Knauf, Saint‑Gobain, and National Gypsum dominate the market, with the top five companies holding a substantial collective market share. The Technical Grade segment represents the largest portion of the market by type, fueled by consistent industrial demand.

Anhydrous Calcium Sulfate Market – View in Detailed Research Report

Top 10 Companies in the Anhydrous Calcium Sulfate Market (2026)

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🔟 10. Taishan Gypsum

Headquarters: Taishan, China
Key Offering: Technical and Food Grade anhydrous calcium sulfate for construction and food processing

Taishan Gypsum has positioned itself as a leading supplier in the Asia‑Pacific region, leveraging its extensive production capacity to meet growing demand for both technical and high‑purity grades. The company’s focus on energy‑efficient calcination processes has reduced production costs, enabling competitive pricing in a cost‑sensitive market.

Sustainability & Growth Initiatives:

• Investment in low‑energy calcination technology to cut CO₂ emissions
• Partnerships with local power plants to secure reliable FGD gypsum supply
• Expansion of export logistics to reach emerging markets in Africa and the Middle East

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9️⃣ 9. BNBM Group

Headquarters: Nanjing, China
Key Offering: Technical Grade anhydrous calcium sulfate for construction and industrial applications

BNBM Group has built a robust supply chain across China’s eastern provinces, ensuring a steady flow of raw gypsum to its manufacturing sites. The firm’s emphasis on process automation has increased throughput while maintaining strict quality controls, allowing it to capture a growing share of the high‑purity segment.

Sustainability & Growth Initiatives:

• Implementation of waste‑heat recovery systems in calcination units
• Collaboration with regional universities on material‑science research
• Strategic acquisitions of smaller gypsum producers to consolidate market presence

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8️⃣ 8. ACG Materials

Headquarters: Washington, D.C., USA
Key Offering: Technical and Food Grade anhydrous calcium sulfate for construction and food industry

ACG Materials serves North American manufacturers with a focus on high‑purity grades required for pharmaceutical and food applications. Its integrated supply chain, from raw gypsum extraction to finished product, ensures consistent quality and rapid delivery to critical customers.

Sustainability & Growth Initiatives:

• Adoption of renewable energy sources for plant operations
• Development of eco‑friendly packaging solutions for bulk shipments
• Participation in industry consortia to set new standards for product purity

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7️⃣ 7. Armstrong World Industries

Headquarters: Northbrook, Illinois, USA
Key Offering: Technical Grade anhydrous calcium sulfate for construction and industrial applications

Armstrong World Industries is a long‑standing supplier of gypsum products, with a diversified portfolio that includes anhydrous calcium sulfate. The company’s focus on R&D has led to the development of advanced formulations that improve setting time and fire‑resistance in wallboard systems.

Sustainability & Growth Initiatives:

• Implementation of water‑recycling systems in manufacturing plants
• Investments in digital supply‑chain tracking to reduce waste
• Partnerships with construction firms to promote green building certifications

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6️⃣ 6. American Gypsum

Headquarters: Broomfield, Colorado, USA
Key Offering: Technical and Food Grade anhydrous calcium sulfate for construction and food processing

American Gypsum’s extensive distribution network spans the United States, providing rapid access to high‑quality anhydrous calcium sulfate for drywall and other building materials. The firm’s investment in process automation has lowered unit costs, enhancing its competitive position.

Sustainability & Growth Initiatives:

• Use of renewable energy in manufacturing facilities
• Development of low‑emission calcination technologies
• Collaboration with local governments to secure sustainable sourcing permits

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5️⃣ 5. LafargeHolcim

Headquarters: Zurich, Switzerland
Key Offering: Technical Grade anhydrous calcium sulfate for construction and cement production

LafargeHolcim’s global footprint allows it to source raw gypsum from multiple regions, mitigating supply‑chain risks. The company’s focus on process optimization has improved energy efficiency, aligning with its broader sustainability agenda.

Sustainability & Growth Initiatives:

• Integration of FGD gypsum into product mix to reduce reliance on mined gypsum
• Investment in carbon‑capture technology for calcination units
• Partnerships with cement manufacturers to promote blended‑cement solutions

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4️⃣ 4. Saint‑Gobain

Headquarters: Paris, France
Key Offering: Technical and Food Grade anhydrous calcium sulfate for construction and food industries

Saint‑Gobain’s extensive R&D capabilities have enabled the development of high‑purity formulations that meet stringent regulatory requirements in the pharmaceutical and food sectors. The company’s global manufacturing network ensures timely delivery across key markets.

Sustainability & Growth Initiatives:

• Adoption of renewable energy sources across production sites
• Implementation of circular‑economy practices for gypsum waste
• Strategic alliances with construction firms to promote sustainable building materials

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3️⃣ 3. Knauf

Headquarters: Düsseldorf, Germany
Key Offering: Technical Grade anhydrous calcium sulfate for construction and industrial applications

Knauf’s global presence and integrated supply chain give it a decisive advantage in delivering high‑quality anhydrous calcium sulfate. The company’s focus on product innovation has resulted in formulations that improve workability and durability in wallboard systems.

Sustainability & Growth Initiatives:

• Implementation of energy‑efficient calcination processes
• Use of FGD gypsum to reduce environmental footprint
• Collaboration with construction industry to promote green building certifications

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2️⃣ 2. National Gypsum

Headquarters: Macon, Georgia, USA
Key Offering: Technical and Food Grade anhydrous calcium sulfate for construction and food processing

National Gypsum’s extensive distribution network and strong brand recognition make it a trusted supplier in North America. The company’s investment in process automation has improved yield and reduced production costs.

Sustainability & Growth Initiatives:

• Use of renewable energy in manufacturing facilities
• Implementation of waste‑heat recovery systems
• Partnerships with local municipalities to secure sustainable sourcing permits

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1️⃣ 1. Etex Group

Headquarters: Ghent, Belgium
Key Offering: Technical Grade anhydrous calcium sulfate for construction and industrial applications

Etex Group’s diversified product portfolio and strong presence in Europe allow it to supply anhydrous calcium sulfate to a wide range of customers. The company’s focus on process efficiency has driven down unit costs, enhancing competitiveness.

Sustainability & Growth Initiatives:

• Implementation of renewable energy sources across production sites
• Development of low‑emission calcination technologies
• Collaboration with construction firms to promote sustainable building practices

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Anhydrous Calcium Sulfate Market – View in Detailed Research Report

Anhydrous Calcium Sulfate Market – View in Detailed Research Report

Outlook

Over the next decade, the anhydrous calcium sulfate market will continue to benefit from the steady demand of the construction sector while diversifying into high‑value specialty applications such as pharmaceutical excipients and food fortifiers. The shift toward sustainable building materials, driven by stringent environmental regulations, will encourage manufacturers to adopt low‑emission calcination processes and incorporate FGD gypsum into their product mix.

Future Trends

• Growth of high‑purity grades driven by regulatory standards in food and pharmaceuticals
• Expansion of specialty applications in medical device manufacturing and 3D printing of biomedical implants
• Increasing importance of digital supply‑chain solutions to reduce logistics costs and improve transparency
• Strategic mergers and acquisitions as global players consolidate market share in emerging economies