Kowa Company, Ltd. Product Lineup

Ferrous sulfate monohydrate is produced by centrifugally removing the crystallization water from the heptahydrate and then drying it. Compared to the heptahydrate, ferrous sulfate monohydrate is less prone to oxidation-reduction reactions in the air and has the characteristic of containing a large number of iron ions. ◎ Industrial Use It is used as a raw material for pigments and in wastewater treatment applications. In wastewater treatment, it functions as a reducing agent, coagulant, and precipitant. - As a reducing agent, it works to reduce hexavalent chromium to trivalent chromium in chromium-containing wastewater. - As a coagulant, it has a fast sedimentation rate, large and dense sludge particles, good removal effect for coloring agents, and the advantage of being inexpensive. - As a precipitant, it can form precipitates with sulfides and phosphates, allowing for the removal of these substances. ◎ Feed Use It is used as an animal feed additive, serving the role of iron supplementation. Iron is an essential nutrient for animal growth, being a crucial component of hemoglobin, myoglobin, cytochromes, and various oxidative enzymes. It also enhances the quality of livestock meat, giving it a more vibrant red color. ◎ Fertilizer Use It is used as a fertilizer to supply iron to plants.

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◎About the Use of Fertilizers Iron (Fe), a trace element essential for plant growth, plays a central role in chlorophyll production and energy generation. A deficiency of iron adversely affects the life activities of plants, leading to serious issues such as leaf chlorosis and stunted growth. Among the solutions, ferrous sulfate is used as a reliable trace element fertilizer. Ferrous sulfate is water-soluble and is widely utilized as an essential trace element fertilizer in hydroponics. It is particularly effective in addressing iron deficiency in sandy and alkaline soils. In the agricultural sector, it is recognized as a fast-acting iron fertilizer. As for usage methods, spraying ferrous sulfate or applying it as a foliar spray are direct and effective ways to supply iron. Ferrous sulfate supports plant growth and health while efficiently promoting the uptake of iron from the soil. If the goal is to enhance productivity and quality, the use of ferrous sulfate is ideal. ◎About Industrial Applications Heptahydrate has many uses in wastewater treatment applications. It can be used as a coagulant, reducing agent, and precipitant to remove sulfides and phosphorus from wastewater.

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The applications are wide-ranging, including semiconductor materials, supplement ingredients, battery components, solar panels, IC chips, RAM, sensors, and airplane coatings, and it can also be used in ultra-hard steel. Currently, it is being considered for use in cancer treatment and virus treatment. - It can be used as a substitute for gallium and germanium in IC chip production. - When used in solar panels, there are results indicating that a conversion efficiency of 60-70% can be achieved. - While boron is generally used in the production of ultra-hard steel, the use of fullerene allows for the manufacture of even harder materials. ★ Preparations are underway for the world's first industrial-scale production. (Production volume is being prepared to reach 700 kg/month) ★ A characteristic feature is that the raw materials can be sourced locally from commonly available materials such as coconut husks, rice husks, and corn.

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We propose high-purity anhydrous lithium chloride! It meets top-grade standards, and impurity management is thorough! (Please check the catalog for detailed specifications.) It is primarily developed for improving the ionic conductivity of sulfide-based solid electrolytes, and we have received numerous inquiries for other applications as well. Please feel free to contact us for sample arrangements and more information. Additionally, it is domestically manufactured, and we have a stable production and supply system in place.

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We would like to introduce AJAY-SQM, a subsidiary of SQM, the world's largest iodine manufacturer! We procure iodine in Chile, the world's number one producer of iodine! This is lithium iodide developed and manufactured in North America. We have received numerous inquiries for applications such as solid electrolytes. Please feel free to contact us for sample arrangements and more information. Thanks to our stable supply of iodine and years of manufacturing know-how, we deliver products of consistent quality. Our factories are located in Chile, North America, and Europe, and can also be considered for BCP measures. <Main Applications> - Solid electrolytes

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■What is Borax■ Borax is a chemical substance represented by the chemical formula Na2B4O7·10H2O. It is generally refined by heating North American ore in water, adding activated carbon for decolorization, filtering out insoluble components, placing it in a crystallization tank, stirring while cooling, and dehydrating. It is widely used as a raw material for fertilizers, glass, preservatives, photography, and pigments. ■Key Proposal Points■ North American ore is not produced in Japan. Therefore, the ore used as raw material for borax largely relies on imports from overseas. The main production areas for borax abroad are Argentina and Turkey. ⇒ By purchasing from Argentina, the main production area, we can contribute to establishing a stable raw material supply system for your company. [Contact Information] Kowa Company, Ltd. Industrial Related Business Division Resource Materials Department, Inorganic Materials Section, Sales Representative TEL: 03-3279-8057 FAX: 03-3279-8029

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We would like to introduce AJAY-SQM, a subsidiary of SQM, the world's largest iodine manufacturer! We procure iodine in Chile, the world's number one producer of iodine! This is cesium iodide developed and manufactured in North America. It has been newly developed as a raw material for perovskite solar cells and is currently expanding its sales. Please feel free to contact us for sample arrangements and more information. With stable supply of iodine and years of manufacturing know-how, we deliver products of consistent quality. Our factories are located in Chile, North America, and Europe, and can also be considered for BCP measures. <Main Applications> - Perovskite solar cells We have a number of sales records for existing products in Japan! Depending on the quantity, we can also accommodate stock sales.

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Procurement of iodine in Chile, the world's number one producer of iodine! This is ammonium formamidinium iodide (formamidinium iodide hydrogen sulfate), developed and manufactured in North America. It has been newly developed as a raw material for perovskite solar cells and is currently expanding its sales. Please feel free to contact us for sample arrangements and more information. With stable procurement of iodine and years of manufacturing know-how, we deliver products of consistent quality. Our factories are located in Chile, North America, and Europe, making them suitable for BCP considerations. <Main Applications> - Perovskite solar cells We have numerous sales records of existing products to Japan! Depending on the quantity, we can also accommodate stock sales.

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This is methylammonium iodide developed and manufactured in North America. It has been newly developed as a raw material for perovskite solar cells and is currently expanding its sales. Please feel free to contact us for sample arrangements and other inquiries. Thanks to stable iodine supply and years of manufacturing know-how, we deliver products with consistent quality. Our factories are located in Chile, North America, and Europe, allowing for consideration of BCP measures as well. <Main Applications> - Perovskite solar cells We have numerous sales records of existing products to Japan! Depending on the quantity, we can also accommodate stock sales.

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The product has supply contracts with major beer manufacturers in Vietnam, including Hanoi Beer, Saigon Beer, and Heineken. Additionally, unlike Japan, beer consumption in Vietnam does not fluctuate due to seasonal factors, allowing for stable supply throughout the year. 【Benefits】 ■ Contributes to stable supply through increased beer production ■ Primarily fed as cattle feed ■ Characteristics of both concentrated feed and roughage ・Contains a high amount of amino acids and vitamins

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The product has supply contracts with major beer manufacturers in Vietnam, including Hanoi Beer, Saigon Beer, and Heineken. Additionally, unlike Japan, beer consumption in Vietnam does not fluctuate due to seasonal factors, allowing for stable supply throughout the year. (1) Measures against vitamin deficiency It is rich in B vitamins. It contains abundant vitamins such as Vitamin B1, Vitamin B2, and Vitamin B6, which can help maintain the health of fish and livestock. (2) Immune system enhancement Beer yeast is rich in beta-glucan, a type of dietary fiber. This beta-glucan has the effect of activating the immune functions of fish, enhancing immunity, and increasing resistance to bacterial infections. (3) Enhancement of umami Beer yeast contains glutamic acid, a component that enhances umami, which can promote the improvement of umami and increase palatability.

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It is used in agriculture as a soil improvement material. The raw material is natural gypsum, and there are no additives! It is for plant supplementation. It is a fertilizer mainly composed of easily soluble calcium sulfate (dihydrate) and has little impact on soil acidity (pH).

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■Effects of Oregano Oregano is a type of herb known for its pleasant aroma and refreshing, spicy flavor. When mixed into feed, it exhibits a masking effect that suppresses the odor of meat and results in a lighter taste. Other benefits include the following: - Appetite stimulation - Promotion of digestion - Stimulation of enzyme secretion - Enhancement of immune function - Antioxidant properties - Antibacterial - Germicidal - Strengthening of cell membranes - Improvement of meat quality - Suppression of methane gas emissions from cattle This is high-quality oregano powder from a specialized manufacturer in Mexico.

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Calcium iodate is a calcium iodate salt. The main production areas for the raw material iodine are said to be Japan and Chile. Among these, Chile boasts the world's largest deposits of the nitrate that serves as the raw material for iodine. With this large-scale deposit as a backdrop, our company has been supplying and selling iodine produced by the Chilean manufacturer AJAY-SQM, a global leader in iodine production, to Japan for over a decade as their import sales agent. - Contributing to BCP measures! Calcium iodate from Chile contributes to stable supply.

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■What is Zinc Methionine Sulfate? It is a type of organic zinc designated as a feed additive in Japan. Zinc is a component of metal enzymes, so supplementing zinc helps prevent "skin keratinization disorders, decreased feed intake, weakening of hoof horn, growth disorders, and reduced reproductive gland function." Organic zinc is more efficiently absorbed compared to inorganic zinc because it is organically bound to amino acids. Therefore, when compared to inorganic zinc such as zinc carbonate or zinc sulfate, it shows improvements in productivity and reproductive performance, as well as maintaining immune function. ■Appeal Points Zinc methionine sulfate typically contains 15% zinc, but our company also offers a custom product with 20% zinc. This allows for efficient zinc absorption with a smaller amount added compared to standard products. We believe our pricing is relatively competitive, so please feel free to contact us below.

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Magnesium sulfate (Epsom salt) is a fast-acting fertilizer material that is easily soluble in water. It can be used not only in compound fertilizers and blended fertilizers (BB fertilizers) but also as a base fertilizer and top dressing. Magnesium is a key element for plant growth as it is a component of chlorophyll and helps activate enzyme reactions and aids in the absorption of phosphorus. When magnesium is deficient, yellowing of the leaves occurs, leading to a condition known as magnesium deficiency, which results in reduced photosynthetic ability. Magnesium sulfate is water-soluble and fast-acting, making it very effective against magnesium deficiency.

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Potassium sulfate is a fast-acting potassium fertilizer that is easily soluble in water. It is suitable for both base and top dressing due to its low leaching. It can be mixed with urea, ammonium sulfate, potassium chloride, superphosphate, and monoammonium phosphate (MAP) and diammonium phosphate (DAP), and is also used as a raw material for compound fertilizers and BB blended fertilizers.

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- Industrial-grade granular product (90% is 2mm or larger) - Registered as fertilizer, can be used as such. - Certified as a non-hazardous material under the Fire Service Act, allowing it to be handled like regular cargo within Japan. - Available for stock sale, with 25kg available for same-day delivery nationwide. - Addressing supply instability from China, potassium nitrate from Chile contributes to stable supply.

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Regarding the nitrate that serves as the raw material for iodine, Chile boasts the world's largest deposits/reserves. With this large-scale reserve as a backdrop, our company has been supplying and selling to Japan for over a decade as an import sales agent for Chilean manufacturers, who are global leaders in iodine production. Our strength lies in our past sales achievements to domestic companies across a wide range of applications, supported by the production volume of Chilean manufacturers, which is among the largest in the world. [Features] - High Purity: We provide high-purity iodine using the highest quality raw materials and through our unique manufacturing process. This ensures the highest quality outcomes in our customers' products. - Excellent Stability: Our iodine exhibits stable performance during use and over long-term storage. This enhances the reliability and durability of our customers' products. - Wide Range of Applications: Iodine is suitable for various applications. For example, it is used as a raw material for X-ray contrast agents, iodine compounds (industrial catalysts, feed additives, LCD raw materials, nylon resin stabilizers, etc.), LCD screen materials, and sterilization and anti-fungal agents. For more details, please contact us through the inquiry form below.

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We deliver products of stable quality thanks to the stable supply of iodine and years of manufacturing know-how. Our factories are located in Chile, North America, and Europe, allowing for consideration of BCP measures as well. <Main Applications> - Polarizing Film - Electronic Materials - Nylon We also have numerous sales achievements in Japan! Depending on the quantity, we can also accommodate stock sales.

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We deliver products of stable quality thanks to the stable supply of iodine and our long-standing manufacturing know-how. Our factories are located in Chile, North America, and Europe, and we can also consider BCP measures. <Main Applications> - Catalysts (Reactive) - Electronic Materials - Cell Batteries - Synthetic Resin Fibers (Nylon) - Animal Feed

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- We have been selling SQM's lithium compounds in the Japanese market for over 20 years. - Stable supply is our strength. - The extraction of lithium from the Atacama salt flat results in low CO2 emissions, making it excellent from an environmental perspective. - We offer stock sales, allowing for immediate shipping and purchases in the quantities needed by our customers. - It is used in a wide range of applications, including battery materials, glass, iron powder, grease, catalysts, and chemical raw materials. - We contribute to BCP measures and stable supply.

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- We have been selling SQM's lithium compounds in the Japanese market for over 20 years. - Stable supply is our strength. - The low CO2 emissions from lithium production in the Atacama Salt Flat make it excellent from an environmental perspective. - We offer stock sales, allowing for immediate shipping and purchases in the units required by our customers. - It is used in a wide range of applications, including battery materials, glass, iron powder, grease, catalysts, and chemical raw materials. - We contribute to BCP measures and stable supply.

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- We have been selling SQM's lithium compounds in the Japanese market for over 20 years. - Our strength lies in stable supply. - The low CO2 emissions from lithium production at the Atacama Salt Flat make it excellent from an environmental perspective. - We offer stock sales, allowing for immediate shipping and purchases in the quantities needed by our customers. - It is used in a wide range of applications, including battery materials, glass, iron powder, grease, catalysts, and chemical raw materials. - We contribute to BCP measures and stable supply.

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Oxychloride zirconium is generally used as a raw material for zirconium compounds and is utilized in various applications as ceramics. Ninety percent of the oxychloride zirconium in Japan is imported. Our company has been importing and selling oxychloride zirconium from manufacturers with the largest production capacity in China for over 20 years, establishing a solid logistics and supply system. Its characteristic is low impurities. In particular, it can accommodate low iron content (see the specifications example below), which has the advantage of suppressing discoloration of products and distortion of electrical properties. Therefore, it is adopted by domestic manufacturers that produce and develop zirconium compounds, which are often required to be of high quality by end users, such as fine ceramics for the electronics field and dental materials where color is important.

• Fine Ceramics

Kowa Co., Ltd. is a company with a history of over 120 years, founded in 1894 as a cotton fabric wholesaler. As the core company of the Kowa Group, it has both trading functions for the import and export of textiles, machinery, building materials, and triangular trade, as well as manufacturing functions for pharmaceuticals, medical devices, vision units, energy-saving, and energy-creating related products, covering a wide range of business fields. One of its divisions, the Kowa Resource Materials Department, Inorganic Materials Section, engages in wholesale business for the import and export of raw materials and also acts as a sales agent for distinctive domestic and overseas raw materials.

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■What is Zircon Sand■ Zircon is a type of mineral, and the origin of the word "zircon" comes from the Persian word "zargun" (meaning gold-colored) and the Arabic word "zarquin" (meaning brown), due to the prevalence of golden-brown stones. Minerals containing zircon are often found in sand deposits formed from the weathering of rocks and their subsequent erosion by water. The minerals containing zircon primarily occur as zircon silicate combined with silica, and some can be found as transparent red crystals, which are referred to as hyacinth in the jewelry industry. The refined and extracted forms of these minerals are generally called "zircon sand." ■Key Points of the Proposal■ The global production of zircon amounts to 1,500 thousand tons, with Australia, South Africa, and China accounting for about 80% of the total. Japan is a net importer of zircon, relying on imports for 80% of its ore from South Africa and Australia. ([Source: JOGMEC "Mineral Resource Material Flow 2019"]) ⇒ Our company has secured suppliers of zircon sand from Indonesia, in addition to the above, and can provide proposals tailored to specific applications. [Contact Information] Inorganic Materials Division TEL: 03-3279-8057

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■What is Boric Acid■ Boric acid is a chemical substance represented by the chemical formula H3BO3. It is generally produced by reacting a mineral known as borax with sulfuric acid, followed by filtration, cooling, and re-dissolution for purification. It is widely used in glass, enamel glazes, abrasives, ceramics, and as a raw material for boric acid bait. ■Key Points of Proposal■ In Japan, boric acid raw materials are not produced domestically. Therefore, the ores and intermediate products that serve as raw materials for boric acid are largely dependent on imports from overseas. The main sources of boric acid abroad are the United States and Russia. Recently, due to the situation between Russia and Ukraine, the supply of boric acid raw materials and boric acid itself has been in an uncertain state. ⇒ By purchasing boric acid from a third country, Peru, we can contribute to the establishment of a stable raw material supply system for your company. [Contact Information] Kowa Company, Ltd. Industrial Related Business Division Resource Materials Department, Inorganic Materials Section, Sales Representative TEL: 03-3279-8057 FAX: 03-3279-8029 *For inquiries via the web, please use the contact form below.

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