The Global Hexagonal BN Cooling Filler Market was valued at USD 231.8 Million in 2024 and is projected to reach USD 385.5 Million by 2030, growing at a Compound Annual Growth Rate (CAGR) of 8.7% during the forecast period (2024–2030). This robust growth is fueled by escalating demand for advanced thermal management solutions in electronics, electric vehicles, and telecommunications, coupled with the material’s unique combination of high thermal conductivity, electrical insulation, and chemical inertness.

As electronic devices become more powerful and compact, the need for efficient heat dissipation is paramount. Hexagonal Boron Nitride (h-BN) fillers are at the forefront of this challenge, enabling the development of next-generation thermal interface materials, thermally conductive plastics, and electronic packaging. In this blog, we profile the Top 10 Companies in the Hexagonal BN Cooling Filler Industry—a group of advanced materials specialists and chemical giants shaping the future of thermal management.

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🔟 1. 3M Company

Headquarters: Maplewood, Minnesota, USA
Key Offering: Boron Nitride Cooling Fillers, Thermal Interface Materials, Advanced Ceramics

3M is a global science-based company and a leading supplier of high-performance materials, including its range of boron nitride cooling fillers. Their products are engineered for superior thermal management in demanding applications such as 5G infrastructure, power electronics, and automotive systems. 3M’s extensive R&D capabilities allow for the customization of h-BN particles for specific thermal and dielectric properties.

Innovation and Application Focus:

• Development of high-purity h-BN powders and agglomerates

• Integration into thermally conductive gels, greases, and gap fillers

• Strong focus on applications in electric vehicle battery thermal management systems

Download FREE Sample Report: Hexagonal BN Cooling Filler Market – View in Detailed Research Report

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9️⃣ 2. Saint-Gobain

Headquarters: Courbevoie, France
Key Offering: Hexagonal Boron Nitride Powders, Ceramic Components, Thermal Management Solutions

Saint-Gobain, through its Performance Ceramics & Refractories segment, is a major global producer of hexagonal boron nitride. The company offers a diverse portfolio of h-BN grades under brands like CARBOTHERM®, known for their high thermal stability and lubricity. Their materials are critical in sectors ranging from aerospace to semiconductor manufacturing.

Innovation and Application Focus:

• Manufacturing of both standard and custom-engineered h-BN powders

• Specialization in h-BN for high-temperature applications and molten metal handling

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8️⃣ 3. Denka Company Limited

Headquarters: Tokyo, Japan
Key Offering: DENKA boron nitride, Thermally Conductive Fillers, Electronic Materials

Denka is a leading Japanese chemical company with a strong position in the boron nitride market. Their DENKA boron nitride products are renowned for their high thermal conductivity and excellent electrical insulation properties. The company has a significant market share in Asia, supplying fillers for thermally conductive plastics and potting compounds used in consumer electronics and LEDs.

Innovation and Application Focus:

• Focus on high-thermal-conductivity grades for polymer composites

• Expansion of production capacity to meet growing demand from the EV sector

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7️⃣ 4. Momentive Technologies

Headquarters: Waterford, New York, USA
Key Offering: Hexagonal Boron Nitride Powders, Custom Milled h-BN, Thermal Solutions

Momentive Technologies is a global leader in silicones and advanced materials, including a comprehensive line of hexagonal boron nitride products. Their h-BN fillers are designed to enhance the thermal performance of various matrices without compromising electrical insulation. The company serves a broad spectrum of industries, from electronics to industrial coatings.

Innovation and Application Focus:

• Development of surface-treated h-BN for improved dispersion in polymers

• Providing technical support for formulating high-performance thermal composites

Download FREE Sample Report: Hexagonal BN Cooling Filler Market – View in Detailed Research Report

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6️⃣ 5. Shin-Etsu Chemical Co., Ltd.

Headquarters: Tokyo, Japan
Key Offering: Boron Nitride Fillers, Semiconductor Materials, Silicone Products

Shin-Etsu Chemical is one of the world’s largest chemical companies and a key supplier of high-purity materials for the electronics industry. While renowned for its silicon wafers and silicones, Shin-Etsu also produces boron nitride fillers used in thermal interface materials and encapsulants that protect sensitive electronic components from overheating.

Innovation and Application Focus:

• Production of ultra-pure h-BN for critical semiconductor applications

• Vertical integration allows for synergistic development of silicone-h-BN composites

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5️⃣ 6. UK Abrasives, Inc.

Headquarters: Northbrook, Illinois, USA
Key Offering: Boron Nitride Powders, Sprays, and Lubricants

UK Abrasives is a specialist distributor and processor of advanced materials, including various grades of hexagonal boron nitride. The company provides h-BN in multiple forms, from fine powders to aerosol sprays, catering to niche applications requiring high-temperature lubrication and thermal conductivity. They serve a diverse customer base in R&D and industrial manufacturing.

Innovation and Application Focus:

• Tailoring particle size distribution for specific customer requirements

• Providing small-volume and custom blends for research and specialty applications

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4️⃣ 7. ZIBO JINGHUA NEW MATERIALS CO., LTD

Headquarters: Zibo, Shandong, China
Key Offering: Hexagonal Boron Nitride, Ceramic Powders, Thermal Conductive Materials

ZIBO JINGHUA is a prominent Chinese manufacturer specializing in boron nitride and other advanced ceramic powders. The company has grown significantly by supplying cost-effective h-BN fillers to the rapidly expanding Asian electronics and electric vehicle markets. Their focus on scaling production makes them a key player in the global supply chain.

Innovation and Application Focus:

• Large-scale production of h-BN agglomerates and platelets

• Strategic focus on serving the domestic Chinese market and international exports

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3️⃣ 8. YINGKOU LIAONAN SPECIAL CHEMICAL CO., LTD

Headquarters: Yingkou, Liaoning, China
Key Offering: BN Powder, BN Composite Materials, Insulating Ceramics

YINGKOU LIAONAN is another major Chinese producer of boron nitride, contributing to the region’s strong position in the global h-BN market. The company produces a variety of BN-based materials that are used as cooling fillers in polymers and ceramics, catering to both domestic and international demand for thermal management solutions.

Innovation and Application Focus:

• Manufacturing of BN products with a focus on competitive pricing

• Expanding application reach into new areas like additive manufacturing

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2️⃣ 9. Qingzhou Fangyuan Boron Nitride Co., Ltd.

Headquarters: Weifang, Shandong, China
Key Offering: Boron Nitride Granules, h-BN Powder, Custom BN Products

Qingzhou Fangyuan is a specialized manufacturer dedicated to boron nitride products. The company has established itself as a reliable supplier of h-BN cooling fillers, offering various particle sizes and purity levels to meet different industrial needs. Their products are integral to thermal management composites used in high-power electronics.

Innovation and Application Focus:

• Expertise in producing consistent quality h-BN for composite materials

• Strong logistical network for supplying global markets

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1️⃣ 10. H.C. Starck Tungsten GmbH (Part of Masan High-Tech Materials)

Headquarters: Goslar, Germany
Key Offering: Advanced Ceramics, Boron Nitride Powders, Refractory Metals

H.C. Starck, now part of Masan High-Tech Materials, has a long history in advanced materials and is a significant European player in the boron nitride space. The company’s expertise in high-temperature materials translates into high-performance h-BN products used in extreme environments, such as aerospace and high-end industrial applications.

Innovation and Application Focus:

• Development of high-performance h-BN for specialty applications

• Leveraging technical expertise to provide engineered solutions for challenging thermal problems

Get Full Report Here: Hexagonal BN Cooling Filler Market – View in Detailed Research Report

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🌍 Outlook: The Future of Thermal Management is Smarter and More Efficient

The hexagonal boron nitride cooling filler market is experiencing a transformative phase. Driven by the relentless miniaturization of electronics and the global push toward electrification, h-BN is becoming an indispensable material for managing heat in compact, high-power devices. The industry is moving towards higher purity grades, functionalized surfaces for better compatibility, and customized particle morphologies to maximize thermal pathway formation within composite materials.

📈 Key Trends Shaping the Market:

• Explosive Growth in EV Batteries: h-BN is critical for thermal runaway prevention and efficient thermal management in battery packs.

• 5G and AI Infrastructure: The rollout of 5G networks and data centers for AI requires advanced thermal interface materials where h-BN is a key component.

• Advancements in Composite Formulations: R&D is focused on creating polymer composites with higher h-BN loading for superior thermal conductivity.

• Geopolitical Shifts in Supply Chains: Efforts to diversify h-BN production outside of dominant regions are gaining momentum for supply security.

Get Full Report Here: Hexagonal BN Cooling Filler Market – View in Detailed Research Report

The companies profiled above are not just suppliers of a material; they are enablers of technological progress, providing the essential ingredients that keep our increasingly digital and electrified world running cool and efficiently.