The Global Filter Grade Diatomaceous Earth Market was valued at USD 936.7 Million in 2025 and is projected to reach USD 1.32 Billion by 2034, growing at a Compound Annual Growth Rate (CAGR) of 4.6% during the forecast period (2025–2034). This growth is primarily driven by stringent water quality regulations, expanding food and beverage production, and the increasing demand for high-purity filtration across pharmaceutical and industrial sectors.

As industries worldwide prioritize cleaner processes and higher purity standards, the demand for efficient filtration media has never been greater. In this blog, we profile the Top 10 Companies in the Filter Grade Diatomaceous Earth Industry—global leaders and specialized producers who are essential to modern purification and processing applications.

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🔟 1. Imerys S.A.

Headquarters: Paris, France
Key Offering: Celatom®, Clarcel®, Specialty Diatomite Filter Aids

Imerys is the world’s leading producer of diatomaceous earth, with a comprehensive portfolio of filter aids under brands like Celatom and Clarcel. The company’s products are critical for clarifying beer, wine, fruit juices, syrups, and swimming pool water, serving a vast global clientele.

Innovation and Sustainability Focus:

• Investment in high-efficiency, low-density filter aids to reduce waste

• Development of customized solutions for specific industrial applications

• Commitment to sustainable mining and processing practices

Download FREE Sample Report:
Filter Grade Diatomaceous Earth Market – View in Detailed Research Report

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9️⃣ 2. EP Minerals (a U.S. Silica Company)

Headquarters: Reno, Nevada, USA
Key Offering: Diatomaceous Earth, Perlite, and Clay-Based Filter Aids

EP Minerals, part of U.S. Silica Holdings, is a major North American producer of diatomaceous earth and engineered minerals. The company’s products are widely used in beverage filtration, industrial processes, and agricultural applications, with a strong focus on product consistency and performance.

Innovation and Sustainability Focus:

• Extensive R&D in optimizing filtration efficiency and flow rates

• Strategic focus on expanding applications in new industrial sectors

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8️⃣ 3. Showa Chemical Industry Co., Ltd.

Headquarters: Tokyo, Japan
Key Offering: Kenite Diatomite, Functional Minerals

Showa Chemical is a leading Japanese manufacturer of diatomaceous earth, known for its Kenite brand. The company supplies high-purity filter aids to the food, beverage, and pharmaceutical industries across Asia and internationally, with a reputation for stringent quality control.

Innovation and Sustainability Focus:

• Advanced processing techniques to enhance particle size distribution

• Focus on developing products for high-value pharmaceutical filtration

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7️⃣ 4. Calgon Carbon Corporation (a Kuraray company)

Headquarters: Moon Township, Pennsylvania, USA
Key Offering: Diatomite Filter Aids, Activated Carbon, Advanced Purification Systems

Calgon Carbon, a Kuraray Group company, offers a range of filtration and purification solutions, including high-quality diatomite filter aids. Their expertise integrates diatomaceous earth with other media to create comprehensive systems for water treatment and process liquid purification.

Innovation and Sustainability Focus:

• Integration of diatomite with activated carbon for multi-stage filtration

• Focus on solutions for municipal water treatment and environmental remediation

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6️⃣ 5. Dicalite Management Group

Headquarters: Bala Cynwyd, Pennsylvania, USA
Key Offering: Dicalite Diatomite, Perlite, Vermiculite

Dicalite Management Group is a global producer of industrial minerals, with diatomaceous earth operations in the US and Greece. The company provides a diverse range of filter aid grades tailored for applications from swimming pools to chemicals and beverages.

Innovation and Sustainability Focus:

• Expansion of product lines to meet specific customer viscosity and clarity requirements

• Investment in logistics to ensure reliable global supply

Download FREE Sample Report:
Filter Grade Diatomaceous Earth Market – View in Detailed Research Report

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5️⃣ 6. Diatomite CJSC

Headquarters: Yerevan, Armenia
Key Offering: Armenian Diatomite, Filter Powders

Diatomite CJSC is a key producer based in Armenia, supplying filter grade diatomite primarily to the European and CIS markets. The company benefits from access to high-quality natural deposits and focuses on cost-effective solutions for standard filtration needs.

Innovation and Sustainability Focus:

• Modernization of processing facilities to improve product quality

• Strategic positioning to serve growing markets in Eastern Europe and the Middle East

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4️⃣ 7. American Diatomite Inc.

Headquarters: Quincy, Washington, USA
Key Offering: Specialty Diatomaceous Earth for Various Applications

American Diatomite Inc. is a US-based company specializing in the mining and processing of diatomaceous earth. It serves a broad spectrum of industries, including agriculture, filtration, and absorbents, with a focus on customized product formulations.

Innovation and Sustainability Focus:

• Development of application-specific blends for niche markets

• Commitment to environmentally responsible mining operations

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3️⃣ 8. Jilinyuantong Mineral Co., Ltd.

Headquarters: Changbai, Jilin, China
Key Offering: Chinese Diatomite, Filter Aids

Jilinyuantong Mineral is a significant Chinese producer, leveraging the rich diatomite deposits of the Changbai Mountain region. The company is a major supplier to the domestic market and exports to Southeast Asia, offering competitive products for industrial and food-grade filtration.

Innovation and Sustainability Focus:

• Investment in calcination and classification technology to achieve higher purity levels

• Focus on expanding into higher-value international markets

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2️⃣ 9. Qingdao Chuanyi Diatomite Co., Ltd.

Headquarters: Qingdao, Shandong, China
Key Offering: Diatomite Powder, Filter Aids

Qingdao Chuanyi Diatomite is a specialized Chinese manufacturer focused on producing diatomite for filtration applications. The company serves the water treatment, food and beverage, and chemical industries with a strong emphasis on export-oriented growth.

Innovation and Sustainability Focus:

• Enhancement of product lines to meet international quality standards

• Strategic partnerships with global distributors

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1️⃣ 10. Qingdao Best Diatomite Co., Ltd.

Headquarters: Qingdao, Shandong, China
Key Offering: Natural and Calcined Diatomite

Qingdao Best Diatomite completes our list as a prominent Chinese supplier offering both natural and calcined filter aids. The company caters to a global customer base, providing cost-effective solutions for standard filtration requirements across multiple sectors.

Innovation and Sustainability Focus:

• Optimization of production processes for consistent quality

• Capacity expansion to meet rising global demand

Get Full Report Here:
Filter Grade Diatomaceous Earth Market – View in Detailed Research Report

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🌍 Outlook: The Future of Filtration is Precise and Sustainable

The filter grade diatomaceous earth market is evolving beyond its traditional roles, driven by technological advancements and a global push for sustainability. While conventional applications remain the volume driver, innovation is focused on enhancing efficiency, reducing environmental impact, and entering new high-value markets.

📈 Key Trends Shaping the Market:

• Increasing adoption in pharmaceutical and biotech for sterile filtration

• Growing demand for high-clarity filtration in the craft beverage industry

• Stringent regulatory standards for drinking water and wastewater treatment

• R&D into functionalized diatomite for advanced catalytic and adsorption applications

Get Full Report Here:
Filter Grade Diatomaceous Earth Market – View in Detailed Research Report

The companies profiled above are not just supplying a mineral—they are enabling cleaner water, safer food, and more efficient industrial processes worldwide, proving that this ancient material has a critical role in our modern, purity-conscious economy.