2025 Top 10 Flux Calcined Kieselguhr Manufacturers in the world

Jul 14, 2026

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Sarah Liu
Sarah Liu
As a Quality Control Specialist at Qingdao Shengtai Industry Co., Ltd., I ensure that every product we produce meets the highest international standards. My journey in the diatomaceous earth industry has allowed me to witness firsthand the transformation of raw materials into life-changing solutions for various industries.

Introduction to Flux Calcined Kieselguhr

Flux calcined kieselguhr, also known as flux - calcined diatomaceous earth, is a processed form of diatomaceous earth. Diatomaceous earth is a sedimentary rock composed of the fossilized remains of diatoms, a type of microscopic algae. Through the flux - calcination process, diatomaceous earth is heated with fluxes such as soda ash at high temperatures. This treatment enhances the physical and chemical properties of the material, resulting in improved filtration efficiency, higher porosity, and better chemical resistance. Flux calcined kieselguhr is widely used in various industries, including the food and beverage industry for clarifying liquids, the chemical industry for filtration in chemical processes, and the pharmaceutical industry for purifying drugs.


Top 10 Manufacturers

1. Qingdao Shengtai Industry Co., Ltd.

Qingdao Shengtai Industry Co., Ltd. is a leading player in the field of flux calcined kieselguhr manufacturing. The company is based in Qingdao, China, a city with a well - developed industrial infrastructure and a strong focus on international trade.


Company Overview:Established several years ago, Qingdao Shengtai Industry Co., Ltd. has been committed to the research, development, production, and sales of diatomaceous earth products. The company has a modern production base equipped with advanced production equipment and strict quality control systems. Their team consists of experienced professionals in geology, chemical engineering, and sales, who work together to ensure the high - quality of their products and excellent customer service.


Features in Flux Calcined Kieselguhr:


  • High - quality raw materials: The company sources its diatomaceous earth from high - quality mines. The unique geological conditions of these mines ensure that the raw materials have a high silica content and a well - structured diatom frustule, which is the basis for producing high - performance flux calcined kieselguhr.
  • Advanced production technology: Qingdao Shengtai Industry Co., Ltd. has introduced advanced flux - calcination technology from abroad. This technology allows for precise control of the calcination temperature, time, and the amount of flux added, resulting in products with consistent quality and performance.
  • Diverse product range: They offer a wide range of flux calcined kieselguhr products with different particle sizes and filtration rates. This diversity enables customers in different industries to choose the most suitable products for their specific applications.


Advantages:


  • Cost - effective: The company benefits from China's relatively low production costs, including labor and raw materials. This allows them to offer high - quality flux calcined kieselguhr products at competitive prices, which is very attractive to customers, especially those in price - sensitive markets.
  • Strong R & D capabilities: Qingdao Shengtai Industry Co., Ltd. invests heavily in research and development. They continuously improve their production processes and product performance to meet the changing needs of the market. For example, they are working on developing new types of flux calcined kieselguhr with better environmental performance.
  • Good after - sales service: The company has a professional after - sales service team that can quickly respond to customers' inquiries and solve problems. They also provide technical support and training to help customers use their products more effectively.


Website: https://www.shengtaidiatomite.com/


2. EP Minerals

Company Overview:EP Minerals, now part of Imerys, is a well - known global producer of diatomaceous earth products. With a long - standing history in the industry, the company has a large - scale production base and a wide distribution network around the world. They have a deep understanding of the diatomaceous earth market and have been at the forefront of product innovation.


Features in Flux Calcined Kieselguhr:


  • Large - scale production: EP Minerals has large - scale production facilities that can meet the high - volume demand of customers. Their production capacity is one of the largest in the world, which allows them to supply flux calcined kieselguhr to major industries on a consistent basis.
  • High - purity products: The company is known for producing high - purity flux calcined kieselguhr. Through strict raw material selection and advanced purification processes, their products have a very low impurity content, which is crucial for applications in the food, beverage, and pharmaceutical industries.
  • Customized solutions: EP Minerals can provide customized flux calcined kieselguhr products according to customers' specific requirements. They have a team of experts who can work closely with customers to develop products with the right particle size, porosity, and filtration performance.


Advantages:


  • Global brand recognition: EP Minerals has a strong global brand, which is associated with high - quality and reliable products. This brand recognition gives them a competitive edge in the international market, as customers are more likely to trust and choose their products.
  • Extensive research and development: The company invests a significant amount of resources in research and development. They are constantly exploring new applications of flux calcined kieselguhr and improving the production process to enhance product performance. For example, they are researching ways to reduce the energy consumption during the calcination process.
  • Excellent customer support: EP Minerals has a comprehensive customer support system. They provide technical advice, product samples, and on - site service to ensure that customers can use their products effectively. Their customer support team is available 24/7 to respond to customers' needs.


3. Celite Corporation (now part of Imerys)

Company Overview:Celite Corporation has a long and rich history in the diatomaceous earth industry. It was one of the first companies to commercialize diatomaceous earth products. After being acquired by Imerys, it has further strengthened its position in the global market. The company has a wide range of production facilities and a large customer base.


Features in Flux Calcined Kieselguhr:


  • Proven production process: Celite has a well - established and proven production process for flux calcined kieselguhr. Their production technology has been refined over many years, resulting in products with stable quality and performance.
  • Wide application experience: The company has extensive experience in applying flux calcined kieselguhr in different industries. They can provide customers with detailed application guidelines and solutions based on their long - term practical experience.
  • Quality control: Celite has a strict quality control system in place. From raw material inspection to the final product testing, every step is carefully monitored to ensure that the products meet the highest quality standards.


Advantages:


  • Industry leadership: As an industry leader, Celite has a strong influence on the diatomaceous earth market. Their product standards and technological innovations often set the benchmark for the industry.
  • Diversified product portfolio: In addition to flux calcined kieselguhr, Celite also offers a variety of other diatomaceous earth - based products. This diversified product portfolio allows them to meet the different needs of customers and provides them with more business opportunities.
  • Global distribution network: The company has a well - developed global distribution network, which enables them to quickly deliver products to customers around the world. This efficient distribution system reduces the delivery time and improves customer satisfaction.


4. Dicalite Management Group

Company Overview:Dicalite Management Group is a leading provider of diatomaceous earth products in North America. The company has a long - standing reputation for quality and innovation. They have a vertically integrated business model, which includes mining, processing, and distribution of diatomaceous earth products.


Features in Flux Calcined Kieselguhr:


  • Integrated supply chain: Dicalite's vertically integrated supply chain gives them better control over the quality and cost of their flux calcined kieselguhr products. They can ensure a stable supply of high - quality raw materials and optimize the production process to reduce costs.
  • Innovative product development: The company is committed to innovation in product development. They are constantly looking for new ways to improve the performance of their flux calcined kieselguhr, such as developing products with higher filtration rates and better chemical resistance.
  • Technical expertise: Dicalite has a team of technical experts who can provide in - depth technical support to customers. They can help customers select the right products, optimize the filtration process, and solve any technical problems that may arise.


Advantages:


  • Local market advantage: In North America, Dicalite has a strong local market presence. They understand the specific needs and regulations of the North American market, which allows them to better serve local customers.
  • Sustainable production: The company is committed to sustainable production practices. They are working on reducing the environmental impact of their mining and production operations, such as minimizing waste generation and improving energy efficiency.
  • Customer - centric approach: Dicalite focuses on providing excellent customer service. They listen to customers' needs and feedback and continuously improve their products and services to meet customer expectations.


5. Showa Chemical Industry Co., Ltd.

Company Overview:Showa Chemical Industry Co., Ltd. is a well - known chemical company in Japan. It has a long history of producing high - quality chemical products, including flux calcined kieselguhr. The company has a strong R & D department and a state - of - the - art production facility.


Features in Flux Calcined Kieselguhr:


  • High - tech production process: Showa Chemical uses advanced high - tech production processes in the manufacturing of flux calcined kieselguhr. Their production technology allows for precise control of product properties, resulting in products with high quality and consistency.
  • Product innovation: The company is actively involved in product innovation. They are constantly developing new types of flux calcined kieselguhr with improved performance, such as products with better thermal stability and higher adsorption capacity.
  • Strict quality management: Showa Chemical has a very strict quality management system. Their products are subject to multiple quality checks at every stage of production to ensure that they meet the most stringent international standards.


Advantages:


  • Japanese quality reputation: Japan is known for its high - quality manufacturing, and Showa Chemical benefits from this reputation. Customers around the world trust the quality of their products, which gives them a competitive edge in the global market.
  • Strong R & D capabilities: The company's R & D department is well - funded and staffed with top - notch researchers. They are able to quickly respond to market changes and develop new products to meet emerging needs.
  • Good cooperation with research institutions: Showa Chemical has established good cooperation relationships with many Japanese and international research institutions. This allows them to access the latest research results and technologies, which helps in the continuous improvement of their products.


6. Huber Engineered Materials

Company Overview:Huber Engineered Materials is a global leader in the production of engineered materials, including flux calcined kieselguhr. The company has a wide range of manufacturing facilities in different parts of the world and a strong focus on customer satisfaction.


Features in Flux Calcined Kieselguhr:


  • Advanced engineering solutions: Huber offers advanced engineering solutions for flux calcined kieselguhr applications. They can design and develop customized filtration systems based on customers' specific requirements, which helps customers improve their production efficiency.
  • Product consistency: The company has strict production processes and quality control measures to ensure the consistency of their flux calcined kieselguhr products. This consistency is very important for customers who require stable product performance in their production processes.
  • Technical training: Huber provides technical training to customers to help them better understand and use their products. This training includes on - site training and online courses, which enable customers to optimize the use of flux calcined kieselguhr in their applications.


Advantages:


  • Global reach: Huber Engineered Materials has a global presence, which allows them to serve customers in different regions of the world. Their extensive sales and distribution network ensures that products can be delivered to customers in a timely manner.
  • Diversified application knowledge: The company has in - depth knowledge of the applications of flux calcined kieselguhr in various industries. They can provide comprehensive solutions for different applications, from food and beverage filtration to industrial chemical processing.
  • Continuous improvement: Huber is committed to continuous improvement in product quality and performance. They regularly review and update their production processes and product specifications to meet the evolving needs of the market.


7. Johns Manville

Company Overview:Johns Manville is a well - established company in the building materials and specialty materials industry. They also have a significant presence in the flux calcined kieselguhr market. The company has a large - scale production base and a long - standing reputation for quality and innovation.


Features in Flux Calcined Kieselguhr:


  • Multi - industry application experience: Johns Manville has experience in applying flux calcined kieselguhr in multiple industries, such as construction, automotive, and energy. This multi - industry experience allows them to offer unique solutions and insights to customers in different sectors.
  • Product customization for different industries: They can customize flux calcined kieselguhr products according to the specific requirements of different industries. For example, in the construction industry, they can develop products with better insulation properties, while in the energy industry, they can provide products with higher filtration efficiency.
  • Quality - first principle: The company adheres to a quality - first principle in the production of flux calcined kieselguhr. Their strict quality control system ensures that every batch of products meets the highest quality standards.


Advantages:


  • Brand strength: Johns Manville has a strong brand in the market. Customers trust the company's products because of its long - standing reputation for quality and reliability.
  • Research and development investment: The company invests a significant amount in research and development. They are constantly exploring new applications and improving the performance of their flux calcined kieselguhr products.
  • Sustainable development initiatives: Johns Manville is committed to sustainable development. They are working on reducing the environmental impact of their production processes and developing more environmentally friendly products.


8. LKAB Minerals

Company Overview:LKAB Minerals is a leading European producer of industrial minerals, including flux calcined kieselguhr. The company is part of the LKAB Group, which has a long - standing history in the mining and minerals industry. LKAB Minerals has a modern production facility and a strong focus on environmental protection.


Features in Flux Calcined Kieselguhr:


  • Environmentally friendly production: LKAB Minerals uses environmentally friendly production methods in the manufacturing of flux calcined kieselguhr. They are committed to reducing energy consumption, waste generation, and emissions during the production process.
  • High - quality European raw materials: The company sources its raw materials from high - quality European mines. The unique geological characteristics of these mines ensure that the raw materials have excellent properties, which are beneficial for producing high - quality flux calcined kieselguhr.
  • Application - specific product development: LKAB Minerals focuses on developing application - specific flux calcined kieselguhr products. They work closely with customers in different industries to understand their specific needs and develop products that can best meet these requirements.


Advantages:


  • European quality standard: The company adheres to strict European quality standards. Their products are known for their high quality and reliability, which gives them a competitive edge in the European and international markets.
  • Strong R & D cooperation in Europe: LKAB Minerals has strong cooperation with European research institutions and universities. This allows them to access the latest research results and technologies in the field of industrial minerals, which helps in the continuous improvement of their products.
  • Good after - sales service in Europe: The company provides excellent after - sales service in Europe. They have a local service team that can quickly respond to customers' needs and provide on - site support.


9. Minerals Technologies Inc.

Company Overview:Minerals Technologies Inc. is a global company that specializes in the production of a wide range of mineral - based products, including flux calcined kieselguhr. The company has a diverse product portfolio and a strong global presence.


Features in Flux Calcined Kieselguhr:


  • Advanced manufacturing technologies: Minerals Technologies uses advanced manufacturing technologies in the production of flux calcined kieselguhr. These technologies enable them to produce products with high precision and consistent quality.
  • Global supply chain management: The company has an efficient global supply chain management system. They can ensure a stable supply of raw materials and timely delivery of products to customers around the world.
  • Product innovation in multiple applications: Minerals Technologies is actively involved in product innovation for different applications of flux calcined kieselguhr. They are constantly looking for new ways to improve the performance of their products in areas such as water treatment, oil filtration, and paint manufacturing.


Advantages:


  • Global market penetration: The company has a wide global market penetration. They have sales offices and distribution centers in many countries, which allows them to quickly respond to the needs of customers in different regions.
  • Diversified product lines: In addition to flux calcined kieselguhr, Minerals Technologies offers a variety of other mineral - based products. This diversification helps them spread the business risk and provides more comprehensive solutions to customers.
  • Strong financial position: The company has a strong financial position, which allows them to invest in research and development, expand production capacity, and acquire new technologies and businesses.


10. Imerys Filtration Minerals

Company Overview:Imerys Filtration Minerals is a major player in the flux calcined kieselguhr market. As part of the Imerys Group, which is a global leader in mineral - based specialty solutions, it has access to extensive resources and technologies. The company has a large - scale production base and a wide range of product offerings.


Features in Flux Calcined Kieselguhr:


  • Comprehensive product range: Imerys Filtration Minerals offers a comprehensive range of flux calcined kieselguhr products. Their product portfolio includes different grades and specifications to meet the diverse needs of customers in various industries.
  • Advanced quality control: The company has an advanced quality control system that uses the latest testing equipment and techniques. This ensures that their products meet the highest quality and performance standards.
  • Technical support network: Imerys Filtration Minerals has a global technical support network. Their technical experts can provide on - site support, training, and problem - solving services to customers around the world.


Advantages:


  • Group synergy: As part of the Imerys Group, Imerys Filtration Minerals benefits from the group's synergy. They can share resources, technologies, and marketing channels with other business units in the group, which enhances their competitiveness.
  • Global brand influence: The Imerys brand has a strong global influence. Customers around the world trust the Imerys name, which gives Imerys Filtration Minerals an advantage in the market.
  • Continuous investment in R & D: The company continuously invests in research and development to improve the performance and application scope of their flux calcined kieselguhr products. They are at the forefront of technological innovation in the industry.


Summary

The global flux calcined kieselguhr market is highly competitive, with these top 10 manufacturers leading the way. Each company has its own unique features and advantages. Companies like Qingdao Shengtai Industry Co., Ltd. offer cost - effective solutions with strong R & D capabilities, while EP Minerals and Celite Corporation have global brand recognition and extensive industry experience. Showa Chemical Industry Co., Ltd. is known for its high - tech production and Japanese - quality reputation.


These manufacturers are not only competing in terms of product quality and price but also in areas such as innovation, environmental protection, and customer service. As the demand for flux calcined kieselguhr continues to grow in various industries, these companies will need to continuously invest in research and development, improve production processes, and expand their market share to maintain their leading positions in the global market. Additionally, with the increasing focus on sustainable development, manufacturers will also need to pay more attention to reducing the environmental impact of their production and promoting the sustainable use of resources. Overall, the future of the flux calcined kieselguhr industry looks promising, and these top 10 manufacturers will play a crucial role in its development.


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