共立マテリアル Product Lineup

We directly procure alumina from PT Indonesia Chemical Alumina (ICA) in Indonesia, and we have supplied over 3,000 tons annually so far. 〇 The raw material bauxite is of Indonesian origin. The red soil discharged during the manufacturing process is returned to the mine, ensuring that there is no ocean dumping and that it is a sustainable raw material that takes the global environment into consideration. ■ Applications - Clinker suppression in biomass combustion - Refractories (refractory bricks, fillers) - Toughened glass - Refractories - Resistors (alumina materials) - Setters - Heat dissipation fillers - Ceramic filters - Alumina ceramic balls - Abrasives ■ Our Strengths - We are a sales company with manufacturing capabilities. In addition to manufacturer analysis values, we can perform composition analysis (XRF, ICP), physical property measurements (particle size measurement, specific surface area measurement), and particle observation using EDS-SEM. - We also accept proposals for grinding, classification, and other services tailored to your needs. ■ Products Handled - Calcined alumina, sintered product, aggregates of approximately 50μm - Calcined alumina, ground product, powder of approximately 4μm

• Ceramics

We handle alumina directly sourced from PT Indonesia Chemical Alumina (ICA) in Indonesia, where we have supplied over 3,000 tons annually. 〇 The raw material bauxite is of Indonesian origin. The red soil discharged during the manufacturing process is returned to the mine, ensuring no ocean dumping and highlighting its characteristic as a sustainable raw material that considers the global environment. ■ Applications - Clinker suppression in biomass combustion - Refractories (refractory bricks, fillers) - Toughened glass - Refractories - Resistors (alumina materials) - Setters - Heat dissipation fillers - Ceramic filters - Alumina ceramic balls - Abrasives ■ Our Strengths - We are a sales company with manufacturing capabilities. In addition to the manufacturer's analysis values, we can perform composition analysis (XRF, ICP), physical property measurements (particle size measurement, specific surface area measurement), and particle observation using EDS-SEM. - We also accept proposals for grinding, classification, and other services tailored to your needs. ■ Products Handled - Calcined alumina, sintered products, aggregates of approximately 50 μm - Calcined alumina, ground products, powder of approximately 4 μm

• Ceramics

We procure alumina directly from PT Indonesia Chemical Alumina (ICA) in Indonesia, where we have supplied over 3,000 tons annually to date. 〇 The raw material bauxite is of Indonesian origin. The red soil discharged during the manufacturing process is returned to the mine, ensuring that there is no ocean dumping and that it is a sustainable raw material that considers the global environment. ■ Applications - Clinker suppression in biomass combustion - Refractories (refractory bricks, fillers) - Toughened glass - Refractories - Resistors (alumina materials) - Setters - Heat dissipation fillers - Ceramic filters - Alumina ceramic balls - Abrasives ■ Our Strengths - We are a sales company with manufacturing capabilities. In addition to the manufacturer's analytical values, we can perform composition analysis (XRF, ICP), physical property measurements (particle size measurement, specific surface area measurement), and particle observation using EDS-SEM. - We also accept proposals for grinding and classification tailored to your needs. ■ Products Handled - Calcined alumina, sintered product, aggregates of approximately 50μm - Calcined alumina, ground product, powder of approximately 4μm

• Ceramics

We handle alumina directly sourced from PT Indonesia Chemical Alumina (ICA) in Indonesia, where we have supplied over 3,000 tons annually. 〇 The raw material bauxite is of Indonesian origin. The red soil discharged during the manufacturing process is returned to the mine, ensuring that there is no ocean dumping and that it is a sustainable raw material that considers the global environment. ■ Applications - Clinker suppression in biomass combustion - Refractories (refractory bricks, fillers) - Toughened glass - Refractories - Resistors (alumina materials) - Setters - Heat dissipation fillers - Ceramic filters - Alumina ceramic balls - Abrasives ■ Our Strengths - We are a sales company with manufacturing capabilities. In addition to the manufacturer's analytical values, we can perform composition analysis (XRF, ICP), physical property measurements (particle size measurement, specific surface area measurement), and particle observation using EDS-SEM. - We also accept proposals for grinding, classification, and other services tailored to your needs. ■ Products We Handle - Calcined alumina, sintered product, aggregates of approximately 50μm - Calcined alumina, ground product, powder of approximately 4μm

• Ceramics

We procure alumina directly from PT Indonesia Chemical Alumina (ICA) in Indonesia, where we have supplied over 3,000 tons annually to date. 〇 The raw material bauxite is of Indonesian origin. The red soil emitted during the manufacturing process is returned to the mine, ensuring that there is no ocean dumping and that it is a sustainable raw material that considers the global environment. ■ Applications - Clinker suppression in biomass combustion - Refractories (refractory bricks, fillers) - Toughened glass - Refractories - Resistors (alumina materials) - Setters - Heat dissipation fillers - Ceramic filters - Alumina ceramic balls - Abrasives ■ Our Strengths - We are a sales company with manufacturing capabilities. In addition to the manufacturer's analysis values, we can perform composition analysis (XRF, ICP), physical property measurements (particle size measurement, specific surface area measurement), and particle observation using EDS-SEM. - We also accept proposals for grinding, classification, and other services tailored to your needs. ■ Products Handled - Calcined alumina, sintered product, aggregates of approximately 50μm - Calcined alumina, ground product, powder of approximately 4μm

• Ceramics

We handle alumina directly procured from PT Indonesia Chemical Alumina (ICA) in Indonesia, where we have supplied over 3,000 tons annually so far. 〇 The raw material bauxite is of Indonesian origin. The red soil discharged during the manufacturing process is returned to the mine, ensuring that there is no ocean dumping and that it is a sustainable raw material that considers the global environment. ■ Applications - Clinker suppression in biomass combustion - Refractories (refractory bricks, fillers) - Toughened glass - Refractories - Resistors (alumina materials) - Setters - Heat dissipation fillers - Ceramic filters - Alumina ceramic balls - Abrasives ■ Our Strengths - We are a sales company with manufacturing capabilities. In addition to the manufacturer's analysis values, we can perform composition analysis (XRF, ICP), physical property measurements (particle size measurement, specific surface area measurement), and particle observation using EDS-SEM. - We also accept proposals for grinding, classification, and other services tailored to your needs. ■ Products Handled - Calcined alumina, sintered product, aggregates of about 50 μm - Calcined alumina, ground product, powder of about 4 μm

• Ceramics

We procure alumina directly from PT Indonesia Chemical Alumina (ICA) in Indonesia, where we have been supplying over 3,000 tons annually. 〇 The raw material bauxite is of Indonesian origin. The red soil discharged during the manufacturing process is returned to the mine, ensuring that there is no ocean dumping and that it is a sustainable raw material that considers the global environment. ■ Applications - Clinker suppression in biomass combustion - Refractories (refractory bricks, fillers) - Toughened glass - Refractories - Resistors (alumina materials) - Setters - Heat dissipation fillers - Ceramic filters - Alumina ceramic balls - Abrasives ■ Our Strengths - We are a sales company with manufacturing capabilities. In addition to the manufacturer's analytical values, we can perform composition analysis (XRF, ICP), physical property measurements (particle size measurement, specific surface area measurement), and particle observation using EDS-SEM. - We also accept proposals for grinding, classification, and other services tailored to your needs. ■ Products Handled - Calcined alumina, sintered product, aggregates of approximately 50μm - Calcined alumina, ground product, powder of approximately 4μm

• Ceramics

We procure alumina directly from PT Indonesia Chemical Alumina (ICA) in Indonesia, where we have supplied over 3,000 tons annually. 〇 The raw material bauxite is of Indonesian origin. The red soil discharged during the manufacturing process is returned to the mine, ensuring that there is no ocean dumping and that it is a sustainable raw material that considers the global environment. ■ Applications - Glass - Refractories - Resistors (alumina materials) - Setters - Heat dissipation fillers - Ceramic filters - Alumina ceramic balls - Abrasives ■ Our Strengths - We are a distributor with manufacturing capabilities. In addition to manufacturer analysis values, we can perform composition analysis (XRF, ICP), physical property measurements (particle size measurement, specific surface area measurement), and particle observation using EDS-SEM. - We also accept proposals for grinding, classification, and other services tailored to your needs. ■ Products Handled - Calcined alumina, sintered product, aggregates of approximately 50 μm - Calcined alumina, ground product, powder of approximately 4 μm

• Ceramics

We handle aluminum hydroxide procured directly from PT Indonesia Chemical Alumina (ICA) in Indonesia, where we are located. 〇 The raw material bauxite is of Indonesian origin. The red mud generated during the manufacturing process is returned to the mine, ensuring that there is no ocean dumping and that it is a sustainable raw material that considers the global environment. ■ Applications - Water treatment agents (such as sulfate bands) - Fireproof materials - Glass - Frit raw materials, etc. ■ Products handled - Aluminum hydroxide, ground product, powder of approximately 15μm - Aluminum hydroxide, high whiteness products, etc. *For more details, please refer to the catalog below or feel free to contact us.

• Ceramics

We handle aluminum hydroxide sourced directly from PT Indonesia Chemical Alumina (ICA) in Indonesia, where we are located. 〇 The raw material bauxite is of Indonesian origin. The red mud generated during the manufacturing process is returned to the mine, ensuring that there is no ocean dumping and that it is a sustainable raw material that considers the global environment. ■ Applications - Water treatment agents (such as sulfate bands) - Non-combustible materials - Glass - Frit raw materials, etc. ■ Products handled - Aluminum hydroxide crushed product, powder of approximately 15μm - Aluminum hydroxide high whiteness products, etc. *For more details, please refer to the catalog below or feel free to contact us.

• Ceramics

We handle aluminum hydroxide procured directly from PT Indonesia Chemical Alumina (ICA) in Indonesia, where we are located. 〇 The raw material bauxite is of Indonesian origin. The red mud generated during the manufacturing process is returned to the mine, ensuring that there is no ocean dumping and that it is a sustainable raw material that considers the global environment. ■ Applications - Water treatment agents (such as sulfate bands) - Non-combustible materials - Glass - Frit materials - Artificial marble, etc. ■ Products handled - Aluminum hydroxide ground product, powder of approximately 15μm - High whiteness aluminum hydroxide, etc. *For more details, please refer to the catalog below or feel free to contact us.

• Ceramics

We handle aluminum hydroxide procured directly from PT Indonesia Chemical Alumina (ICA) in Indonesia, where we are located. 〇 The raw material bauxite is of Indonesian origin. The red mud generated during the manufacturing process is returned to the mine, ensuring that there is no ocean dumping and that it is a sustainable raw material that considers the global environment. ■ Applications - Water treatment agents (such as sulfate bands) - Non-combustible materials - Glass - Artificial marble - Frit materials, etc. ■ Products handled - Aluminum hydroxide, ground product, powder of approximately 15μm - Aluminum hydroxide, high whiteness products, etc. *For more details, please refer to the catalog below or feel free to contact us.

• Ceramics

We handle aluminum hydroxide procured directly from PT Indonesia Chemical Alumina (ICA) in Indonesia, where we are located. 〇 The raw material bauxite is of Indonesian origin. The red mud generated during the manufacturing process is returned to the mine, ensuring that there is no ocean dumping and that it is a sustainable raw material that takes the Earth's environment into consideration. ■ Applications - Water treatment agents (such as sulfate bands) - Non-combustible materials - Glass - Artificial marble - Frit materials, etc. ■ Products handled - Aluminum hydroxide, ground product, powder of about 15μm - Aluminum hydroxide, high whiteness products, etc. *For more details, please refer to the catalog below or feel free to contact us.

• Ceramics

Our company is a retailer with manufacturing capabilities. We leverage our strengths as a raw material manufacturer to provide not only supplier analysis values but also EC measurement, dielectric constant, chemical analysis, and particle size measurement. We respond appropriately to each request. ■ High Purity Silica We handle high purity silica suitable for use in fields such as glass, optics, and electronic materials. We offer various grades with different purity and particle sizes. ■ Alumina Alumina is a representative oxide material used in a wide range of applications, including structural components, heat dissipation fillers, and glass raw materials. We offer submicron easily sinterable alumina, pre-sintered alumina with excellent flowability and processability, spherical alumina, and high whiteness aluminum hydroxide suitable for artificial marble. ■ Cordierite Cordierite is excellent in heat resistance and thermal shock resistance, used in automotive catalyst carriers and refractory materials. Due to its low thermal expansion rate and good dielectric properties, it is also gaining attention for electronic and semiconductor applications.

• Other polymer materials

We are an authorized distributor of DALIAN ZHENGXING ABRASIVE (ZX) based in Dalian, Liaoning Province, China. ZX is responsible for the entire manufacturing process from raw material selection to packaging and shipping, possessing high technical capabilities and quality control standards. ■ Our Strengths - Kyoritsu Material functions as a distributor with manufacturing capabilities. We can conduct composition analysis (XRF, ICP), physical property measurements (particle size measurement, specific surface area measurement), and particle observation using SEM-EDS, in addition to analyzing raw material manufacturers. - Using analytical data, we can provide suggestions for grinding and classification tailored to our customers' inquiries and needs. - We respond to customer needs by customizing according to requirements for particle size and composition (purity). - We are also actively engaged in development, and recently succeeded in developing a D50:0.5μ product for fine ceramics. ■ Products We Handle - B4C 325F * For refractory materials - B4C #8000 * For fine ceramics - B4C F1200 * For polishing

• Ceramics

Our company handles aluminum hydroxide sourced directly from PT Indonesia Chemical Alumina (ICA) in Indonesia. 〇 The raw material bauxite is of Indonesian origin. The red mud generated during the manufacturing process is returned to the mine, ensuring that there is no ocean dumping, which makes it a sustainable raw material that considers the global environment. ■ Applications - Water treatment agents (such as sulfate bands) - Non-combustible materials - Glass - Frit materials, etc. ■ Products Offered - Aluminum hydroxide ground product, powder of approximately 15μm - Aluminum hydroxide high whiteness products, etc.

• Ceramics

Our company handles aluminum oxicide sourced directly from PT Indonesia Chemical Alumina (ICA) in Indonesia, where we have supplied over 3,000 tons annually. 〇 The raw material bauxite is of Indonesian origin. The red soil emitted during the manufacturing process is backfilled into the mine, ensuring that there is no ocean dumping and demonstrating our commitment to sustainable raw materials that consider the global environment. ■ Applications - Clinker suppression in biomass combustion - Refractories (refractory bricks, fillers) - Toughened glass 　- Glass 　- Refractory material 　- Resistor (alumina material) 　- Setter 　- Heat dissipation filler 　- Ceramics filter 　- Alumina ceramic ball ■ Our Strengths - We are a distributor with manufacturing capabilities. In addition to manufacturer analysis values, we can perform composition analysis (XRF, ICP), physical property measurements (particle size measurement, specific surface area measurement), and particle observation using EDS-SEM. - We also offer proposals for grinding, classification, and other services tailored to your needs. ■ Products We Handle - Calcined alumina, sintered product, aggregates of approximately 50μm - Calcined alumina, ground product, powder of approximately 4μm

• Ceramics

Silicon nitride, which is attracting attention as a heat dissipation material for bearings and substrates. Among them, our company handles products manufactured using the rare "combustion synthesis method" in the industry. It boasts excellent "wear resistance," "electro-corrosion resistance," and "thermal conductivity," along with high purity and reasonable pricing. ■ Applications - Heat dissipation filler. ■ Types Available - Two types: α type and β type. ■ Product Names - CUP CX-R08S, among others. We also provide various analyses and technical support, so please feel free to contact us for more details. ■ Related Silicon nitride / Silicon nitride powder / Ceramic balls / Fine ceramics / Fillers / Protective tubes / Insulation tubes / Power devices / Silicon nitride / Si3N4 / Electric vehicles / EV, etc.

• Ceramics

We handle various inorganic materials as ceramic raw materials. 1. Please feel free to consult us regarding the mixing, recipes, and usage of kaolinite minerals (clay, kaolin, china clay), which are our strengths, as well as risk hedging through BCP. 2. We have a wide range of raw materials including "sericite," "silimanite," "siliceous limestone," and "fluorite." We also offer contract processing for grinding, firing, and classification of ceramic raw materials. 3. Our wet classification technology, known as "water classification," developed from ceramic raw materials, allows for the removal of coarse particles. 4. We can accommodate a wide range of thermal processing for powders at firing temperatures from 200°C to 1,450°C. We can also support the prototyping of sintered bodies of oxides such as alumina, cordierite, and zirconia. ■ Products handled - Sericite, silimanite, siliceous limestone, zirconium-based materials - Boron carbide (B4C), fluorite, cordierite, mullite - Steatite, forsterite, polishing abrasives, glass frit - Contract processing for grinding, firing, and classification (dry screening, etc.) of ceramic raw materials We also handle other products not listed above.

• others

At Kyoritsu Material, we handle US Borax's "Borax and Boric Acid." In addition to its proven versatility in various applications, its high melting performance is expected to contribute to cost and CO2 reduction through low-temperature firing of ceramics! ■ Main Uses of Borax and Boric Acid Glass raw materials (liquid crystal, glazes, frits, etc.), flame retardants (cellulose fibers, etc.), cardboard, flux for steelmaking, fertilizers, wood preservatives, cleaning agents, neutron shielding materials, insecticides, slime, optical glass, and more. ■ Products We Handle - Borax (Boric Acid) … 5-water borax, anhydrous borax, 10-water borax - Boric Acid - Anhydrous Boric Acid (Boron Oxide) - Timbor (Boron-based wood preservative) - Coleman's powder, Ulexite powder

• others

Our company not only engages in purchasing and selling but also owns its own mine in Amakusa City, Kumamoto Prefecture. "Amakusa porcelain stone" is a rare domestic ceramic raw material that can be fired alone to achieve porcelain. Due to its unique stone texture and material feel, we have accumulated numerous achievements in the exterior market. ■ Strengths Leveraging our strength as a raw material manufacturer, we deliver materials after conducting high-precision chemical analysis and particle size measurement in-house. ■ Applications - Tableware - Tiles - Sanitary ceramics - Insulator materials, etc. ■ Some representative analysis values (partial) SiO2 (wt%) - Amakusa Grade 3: 77.6 - Amakusa Low Iron Low Firing: 77.3 - Amakusa Low Iron High Firing: 78.0

• others

We handle a wide variety of overseas products such as "potassium feldspar," "soda feldspar," and "nepheline." These materials can be used for various applications, including tableware, tiles, sanitary ceramics, glass raw materials, grinding stones, and bonding materials for refractory products. ■ Features When firing ceramic products, adding alkaline substances can lower the melting temperature. "Feldspar" is used as this alkaline source. ■ Our Strengths Leveraging our strengths as a raw material manufacturer, we can conduct chemical analysis and particle size measurement in-house. We deliver high-quality products. ■ Products We Handle - Potassium Feldspar - Soda Feldspar - Nepheline - Taisyu Feldspar

• others

We handle "high-purity silica" manufactured at our partner overseas factories. ■ Our Strengths Kyoritsu Material is a sales company with manufacturing capabilities! Not only do we provide supplier analysis values, but we also leverage our strength as a raw material manufacturer to offer EC measurement, dielectric constant, chemical analysis, and particle size measurement. We respond appropriately to each request! ■ Products Handled: Origin - Australia, India, China - Silica stone - Silica sand - High-purity silica ■ Applications - Glass for LCD panels (TVs, smartphones, tablets) - Tempered glass - Semiconductor encapsulants - Electronic components - Quartz crucibles - Optical lenses

• Other polymer materials

Since our establishment over 85 years ago, we have been handling domestic and international "kaolin/clay," including Australian kaolin. Utilizing the "worldwide network" we have cultivated since our founding, we provide raw materials that meet our customers' needs with extensive knowledge and experience. ■ Applications - Used as a "filler" in industries such as biomass, paint, film, and paper. By mixing fillers like kaolin/clay into plastics and resins, various effects can be expected, such as enhanced strength and heat resistance, as well as cost reduction! - Raw materials for ceramics... tableware, tiles, sanitary ware - Insulator materials ■ Products We Handle - Kaolin - Calcined kaolin - Ball clay - Frog eye clay - Wood knot clay

• others

We have achieved mass production of barium titanate characterized by fine particles and high crystallinity by improving our dispersion, synthesis, and analysis technologies. This enables further thinning and high stacking of MLCCs, contributing to miniaturization and high capacity. Our products have been adopted in a wide range of applications, from automotive and industrial use to consumer electronics. 【'BT-HP9DX' Product Group】 ■ Particle Size: 100/150/200/250/300/400nm *For more details, please feel free to contact us.

• Other polymer materials