Kurita Water Industries Ltd (Kurita) primarily engages in the water treatment business. The company operates in three main business areas: water treatment chemicals, water treatment facilities, and maintenance services. Kurita's product portfolio includes the manufacture and sale of water treatment chemicals, maintenance of water treatment facilities, soil, and groundwater remediation, operation and maintenance of water treatment facilities, water quality analysis, environmental analysis, manufacture and sale of water treatment facilities, ultrapure water supply, precision tool cleaning, plant cleaning, and manufacture and sale of water treatment equipment and products for commercial use and general households. The company also provides remote monitoring services, water supply and other contracted services, maintenance services, precision tool cleaning services, services to support the effective use of land after purification, water treatment consultation, and information services.

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Kurita has undertaken several R&D initiatives. The company is working on the Used Diaper Separation and Treatment System to recycle used disposable paper diapers, reducing waste and greenhouse gas emissions. Another initiative involves addressing PFAS (Per- and polyfluoroalkyl substances) by developing solutions for water quality analysis and treatment, including the use of activated carbon and reverse osmosis membranes. Additionally, Kurita is developing microbial fuel cells to generate electricity from organic matter in wastewater, aiming to reduce greenhouse gas emissions and improve energy efficiency. The R&D unit of Kurita Water Industries Ltd is the Kurita Innovation Hub, which is responsible for managing the company's R&D activities. This unit focuses on developing innovative technologies and solutions to address environmental challenges and improve water treatment processes. Information regarding the number of R&D centers, patents, pipeline products, major technology alliances, and the latest year R&D expenses as a percentage of revenue is not available in the provided text. In FY2025, the company spent JPY8,095 million on R&D, which as a percentage of revenue, stood at 50.5% and grew 9% YoY.