The Global Calcium Carbonate Plastic Filler Market was valued at USD 25.3 Billion in 2024 and is projected to reach USD 35.8 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 5.9% during the forecast period (2024–2030). This robust growth is primarily driven by the increasing demand for lightweight, cost-effective, and high-performance plastics across packaging, automotive, and construction sectors, coupled with the rising adoption of sustainable material solutions.

As the polymer industry evolves towards enhanced material properties and circular economy principles, calcium carbonate fillers are becoming indispensable. These mineral additives improve stiffness, impact resistance, and thermal properties while reducing overall material costs. In this blog, we profile the Top 10 Companies in the Calcium Carbonate Plastic Filler Industry—a diverse mix of global miners, specialty chemical producers, and regional leaders shaping the future of advanced polymer composites.

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🔟 1. Omya AG

Headquarters: Oftringen, Switzerland
Key Offering: High-purity Ground Calcium Carbonate (GCC), Precipitated Calcium Carbonate (PCC), Surface-treated Fillers

Omya is a world-leading producer of industrial minerals, with a dominant position in the calcium carbonate market. The company provides a wide range of GCC and PCC products tailored for plastic applications, including masterbatches, films, and injection-molded parts. Their technical expertise in particle size control and surface modification ensures optimal performance in diverse polymer matrices.

Innovation and Sustainability Initiatives:

• Development of high-loading, low-dust filler formulations

• Focus on energy-efficient production and water recycling processes

• Global network of production facilities ensuring supply chain resilience

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9️⃣ 2. Imerys S.A.

Headquarters: Paris, France
Key Offering: Calcita, Calcia, and a portfolio of functional mineral fillers

Imerys is a global leader in mineral-based specialty solutions for industry. Their calcium carbonate products are engineered to enhance the mechanical properties, whiteness, and processing of plastics. The company serves a broad spectrum of applications, from rigid PVC pipes and profiles to flexible polyolefin films.

Innovation and Sustainability Initiatives:

• Investment in bio-sourced and recycled plastic compatible fillers

• Proprietary surface treatment technologies for improved polymer-filler adhesion

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8️⃣ 3. Huber Engineered Materials (J.M. Huber Corporation)

Headquarters: Atlanta, Georgia, USA
Key Offering: HuberCarb®, HuberCrete® PCC, Surface-treated GCC

Huber Engineered Materials is a major supplier of high-performance calcium carbonate products in North America and globally. Their fillers are known for consistent quality and are used to improve dimensional stability, surface finish, and cost-effectiveness in a variety of plastic products.

Innovation and Sustainability Initiatives:

• Leading producer of precipitated calcium carbonate (PCC) for high-value applications

• Active in developing solutions for biodegradable and compostable plastics

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7️⃣ 4. Minerals Technologies Inc. (MTI)

Headquarters: New York, New York, USA
Key Offering: Specialty Minerals PCC, GCC for plastics

Minerals Technologies is a renowned global resource- and technology-based company. Its Specialty Minerals segment is a key player in PCC production, offering fillers that provide excellent brightness, opacity, and impact modification for engineering plastics and packaging materials.

Innovation and Sustainability Initiatives:

• Patented PCC crystal morphologies for specific polymer enhancements

• Focus on reducing the carbon footprint of plastic products through lightweighting

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Calcium Carbonate Plastic Filler Market – View in Detailed Research Report

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6️⃣ 5. LCI Industries (Formerly Lhoist)

Headquarters: Brussels, Belgium (Global Operations)
Key Offering: High-calcium limestone products, Calciafill® GCC

As a global leader in lime, dolime, and mineral products, LCI Industries (under the Lhoist Group) supplies high-quality calcium carbonate fillers derived from its vast limestone deposits. Their products are essential in PVC compounding and other plastic systems requiring thermal stability and electrical insulation.

Innovation and Sustainability Initiatives:

• Extensive R&D in mineral processing for ultra-fine and nano-sized fillers

• Commitment to sustainable mining and biodiversity management

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5️⃣ 6. Specialty Minerals Inc. (A Subsidiary of Minerals Technologies Inc.)

Headquarters: Bethlehem, Pennsylvania, USA
Key Offering: Ultra-Pflex®, Multiflex® PCC, GCC for thermoplastics and thermosets

Specialty Minerals Inc. focuses exclusively on developing advanced PCC and GCC solutions. Their products are engineered to act as more than just fillers, providing functionality such as impact modification, improved scratch resistance, and enhanced dispersion in challenging polymer systems.

Innovation and Sustainability Initiatives:

• Pioneering work in nano-precipitated calcium carbonate (NPCC)

• Collaborations with polymer producers to develop next-generation composites

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4️⃣ 7. GCP Applied Technologies (Now part of Compagnie de Saint-Gobain)

Headquarters: Cambridge, Massachusetts, USA
Key Offering: Functional mineral additives, including specialty calcium carbonates

GCP Applied Technologies, now integrated into Saint-Gobain, has a strong legacy in providing performance-enhancing additives. Their calcium carbonate products are designed for specific applications like wire and cable insulation, where they contribute to flame retardancy and mechanical strength.

Innovation and Sustainability Initiatives:

• Development of halogen-free flame retardant (HFFR) compound fillers

• Leveraging Saint-Gobain’s global R&D network for material science breakthroughs

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3️⃣ 8. Shiraishi Group

Headquarters: Osaka, Japan
Key Offering: High-purity GCC, Surface-coated CaCO3 for plastics

Shiraishi is a leading calcium carbonate producer in Asia, with a strong focus on the Japanese and broader Asian markets. The company is known for its high-quality, consistent products used extensively in automotive components, electronic housing, and food packaging.

Innovation and Sustainability Initiatives:

• Advanced surface modification technologies for polyolefins and engineering plastics

• Active participation in developing sustainable plastic circularity standards in Asia

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2️⃣ 9. Mississippi Lime Company

Headquarters: St. Louis, Missouri, USA
Key Offering: Super-fine GCC, Dolomitic lime products for plastics

Mississippi Lime Company is one of the largest lime producers in the United States, supplying a range of calcium carbonate products to the North American plastics industry. Their fillers are critical for applications requiring high loadings, such as vinyl siding, flooring, and synthetic marble.

Innovation and Sustainability Initiatives:

• Investment in state-of-the-art milling and classification technology

• Initiatives to reduce energy consumption and emissions in production

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1️⃣ 10. Nordkalk Corporation

Headquarters: Pargas, Finland
Key Offering: Coated and uncoated GCC, Limestone-based fillers

Nordkalk is a leading Nordic supplier of limestone-based products, with a significant presence in the European plastics market. The company provides calcium carbonate fillers that enhance the sustainability profile of plastics by enabling the use of recycled content and improving biodegradability in certain applications.

Innovation and Sustainability Initiatives:

• Focus on developing solutions for bio-based and compostable polymers

• Strong commitment to the principles of the circular economy

Get Full Report Here:
Calcium Carbonate Plastic Filler Market – View in Detailed Research Report

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🌟 Outlook: The Future of Calcium Carbonate Plastic Fillers is High-Performance and Sustainable

The calcium carbonate plastic filler market is experiencing a strategic transformation. While cost reduction remains a primary driver, the focus is shifting towards value-added functionalities and sustainability contributions. Fillers are no longer inert extenders but active components that define the performance and environmental footprint of the final plastic product.

📈 Key Trends Shaping the Market:

• Rising demand for nano-calcium carbonate (NPCC) for enhanced mechanical and barrier properties

• Increased use in biodegradable plastics (PLA, PHA) to improve processability and reduce cost

• Development of smart surface treatments for better compatibility with recycled polymers

• Growing importance in lightweight automotive components to meet fuel efficiency standards

Get Full Report Here:
Calcium Carbonate Plastic Filler Market – View in Detailed Research Report

The companies listed above are not only supplying essential materials to the global plastics industry—they are actively enabling the creation of smarter, stronger, and more sustainable polymer products for the future.