The Global Calcined Diatomite Market was valued at USD 548 million in 2023 and is projected to reach USD 850.13 million by 2032, growing at a Compound Annual Growth Rate (CAGR) of 5.00% during the forecast period (2024-2032). This expansion is fueled by rising demand from water treatment, food processing, and agricultural sectors, along with increasing adoption in pharmaceutical manufacturing and specialty coatings.

As industries worldwide seek sustainable filtration media and high-performance additives, calcined diatomite’s unique properties—including superior porosity, thermal stability, and chemical inertness—are gaining strategic importance. In this analysis, we examine the Top 10 Companies in the Calcined Diatomite Industry, highlighting their production capabilities, technological innovations, and sustainability contributions to this growing mineral market.

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🔟 1. Imerys SA

Headquarters: Paris, France
Key Offering: High-purity calcined diatomite for industrial applications

Imerys dominates the global diatomite landscape with vertically integrated mining and processing operations across three continents. The company’s Celite® brand is the industry benchmark for premium filtration products used in beer, wine, and pharmaceutical manufacturing.

Market Leadership:

• Controls 35% of global diatomite reserves
• Proprietary calcination technologies for specialty grades
• Full-cycle production from mining to value-added products

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9️⃣ 2. EP Minerals (US Silica)

Headquarters: Reno, Nevada, USA
Key Offering: Specialty diatomite products for filtration and agriculture

EP Minerals operates the largest diatomite mining and processing complex in North America, producing both natural and calcined products. The company’s focus on sustainable mining practices has positioned it as a preferred supplier for food-grade applications.

Market Leadership:

• 200+ customized product formulations
• Zero-waste mining operations
• Patented purification technologies

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8️⃣ 3. Domolin A/S

Headquarters: Skive, Denmark
Key Offering: European distribution of calcined diatomite

Domolin specializes in supplying high-performance diatomite products to European manufacturers, with particular expertise in beverage filtration and industrial absorption applications.

Market Leadership:

• Strategic inventory hubs across EU
• Custom particle size engineering
• Technical filtration consulting services

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7️⃣ 4. Showa Chemical Industry

Headquarters: Tokyo, Japan
Key Offering: High-grade diatomite for Asian markets

Showa Chemical leads Asia’s specialty diatomite sector with advanced processing facilities that meet stringent Japanese industrial standards for purity and performance consistency.

Market Leadership:

• JIS-certified production facilities
• Surface-modified products for niche applications
• Dominant market share in Japanese electronics sector

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6️⃣ 5. CECA (Arkema Group)

Headquarters: Paris, France
Key Offering: Technical-grade calcined diatomite

CECA leverages Arkema’s chemical expertise to produce engineered diatomite solutions for catalyst supports, specialty coatings, and advanced filtration systems.

Market Leadership:

• Patented binder-free formulations
• High-temperature stability products
• Customized porosity solutions

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Calcined Diatomite Market – View in Detailed Research Report

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5️⃣ 6. Dicaperl Minerals

Headquarters: Bristol, UK
Key Offering: Functional filler applications

Dicaperl focuses on value-added industrial applications, developing diatomite-based solutions for plastics, paints, and construction materials that enhance performance characteristics.

Market Leadership:

• Surface-treated specialty products
• Technical partnership model
• Performance-enhancing formulations

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4️⃣ 7. Diatomite CJSC

Headquarters: Almaty, Kazakhstan
Key Offering: Cost-competitive filtration media

Diatomite CJSC capitalizes on Central Asia’s abundant diatomite reserves to supply growing markets in Russia, Eastern Europe, and China with competitively priced products.

Market Leadership:

• Strategic location on New Silk Road
• Government-supported capacity expansion
• Bulk supply capabilities

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3️⃣ 8. American Diatomite Inc.

Headquarters: Lovelock, Nevada, USA
Key Offering: Domestic US supply chain solutions

American Diatomite focuses on serving North American markets with reliable, locally sourced diatomite products that reduce import dependence for critical filtration applications.

Market Leadership:

• Fast delivery times
• Custom agricultural blends
• Dedicated US production facilities

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2️⃣ 9. Jilin Yuan Tong Mineral

Headquarters: Changchun, China
Key Offering: High-volume production for Asian markets

As China’s largest diatomite producer, Jilin Yuan Tong supplies both domestic industries and export markets with cost-effective filtration and functional filler solutions.

Market Leadership:

• 1.2 million ton annual capacity
• Integrated mining-to-processing operations
• ISO-certified quality systems

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1️⃣ 10. Zhilan Diatom Products

Headquarters: Linjiang, China
Key Offering: Specialty applications in Asia-Pacific

Zhilan Diatom specializes in high-value applications including pharmaceutical processing and specialty coatings, with advanced surface modification capabilities.

Market Leadership:

• Nano-particle technology
• Pharma-grade production lines
• Custom engineering solutions

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Calcined Diatomite Market – View in Detailed Research Report

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🌍 Market Outlook: Sustainable Solutions Driving Next-Generation Applications

The calcined diatomite market stands at an inflection point as environmental regulations and performance requirements converge across industries. With its natural origin and versatile functionality, diatomite is emerging as a critical material for sustainable industrial solutions.

📈 Key Industry Trends:

• Water treatment applications growing at 7.2% CAGR
• Increasing pharmaceutical use as excipient and filtration medium
• Advanced material composites incorporating surface-modified diatomite
• Technological innovations in purification and calcination
• Strategic acquisitions expanding geographic reach

The profiled companies represent the vanguard of an industry transforming from commodity supply to engineered solutions. Their continued investment in R&D and sustainable operations ensures calcined diatomite will play an expanding role in addressing global filtration and material science challenges.

Download FREE Sample Report:
Calcined Diatomite Market – View in Detailed Research Report