1949	Founded upon water treatment chemical business (boiler water treatment chemicals). The founder of the Company, who had previously served in the navy, starts selling boiler water treatment chemicals based on navy boiler technology.
1951	Entry into the water treatment facilities business Capitalizing on sales of deionizers for the pretreatment of boiler water supplies, the Company moves into the water treatment facilities business.
1951	Boiler Water Supply Laboratory established.
1953	Start-up of chemical cleaning business New expansion into the chemical cleaning business in which boiler interiors are cleaned using chemical technology.
1958	Expansion of maintenance services An organization specializing in maintenance services is established with a view to expanding after-sales services and maintenance operations for water treatment facilities.
1959	KK Suzuki Shokai established as a chemical cleaning company (now Kurita Engineering Co., Ltd.).

1961	Kansai Kurita Seibi KK. established as a maintenance company for water treatment facilities (predecessor of Kurita Technical Service Co., Ltd.).
1965	Expansion into process treatment chemicals Development of chemicals that increase productivity in the pulp and paper, petrochemical and steel industries, where large volumes of water are used, as the Company broadens the scope of its business from water treatment chemicals to production process treatment chemicals.

1973	Entry into the electronics industry Ultrapure water production technology is developed to meet the demand for water of a higher degree of purity that comes with increasing miniaturization in semiconductor manufacturing processes.
1975	Kurita do Brasil Ltda. established to manufacture and sell water treatment chemicals in Brazil.
1975	Kurita Operation and Maintenance Services, Ltd. established as a water treatment facilities operation and maintenance company (now Kuritaz Co. , Ltd.).
1978	Kurita (Singapore) Pte. Ltd. established as Kurita's water treatment chemicals and water treatment facilities business base in Southeast Asia.

1986	Deployment of tool cleaning business Sales channels established for the electronics business and chemical cleaning technology developed to date are used for the Company's entry into the cleaning business for tools and jigs used in semiconductor manufacturing devices.
1986	P.T. Kurita Indonesia established to carry out the production and sale of water treatment chemicals in Indonesia.
1987	Kurita (Taiwan) Co., Ltd. established to conduct water treatment chemical manufacturing and sales in Taiwan.
1989	Kurita Europe GmbH established in Germany as Kurita's base in Europe for water treatment chemical production and sales.
1989	Goshu Chemical Co., Ltd. established to conduct water treatment chemical manufacturing and sales in Thailand (now Kurita-GK Chemical Co., Ltd.).

1991	Launch of soil remediation business Soil pollution is increasingly becoming a major social problem, and, as a result, the Company commences soil remediation business operations based on water treatment technology developed to date.
1995	Kurita Water Industries (Dalian) Co., Ltd. established as Kurita's base in China for water treatment chemical production and sales.
1996	Kurita America Inc. established in the United States to conduct water treatment facilities sales and maintenance services.
1997	Kurita Water Industries Ltd. merges with maintenance company Kurita Technical Service Co., Ltd.
1998	Acquires an equity stake in Hansu Technical Service Ltd., which is involved in the production, sale and maintenance of water treatment facilities in Korea.

2001	Start of consulting services for hedging soil pollution risks Land Solution Inc. established as a consulting company dealing in soil remediation. Start of business involving the hedging of pollution risks and schemes to facilitate the smooth sale of land that has been restored to a safe condition based on soil remediation successes to date.
2001	Kuritec (Shanghai) Co., Ltd. established as Kurita's base in China for water treatment facilities sales and maintenance services.
2002	Launch of ultrapure water supply business Launch of outsourcing business in which Kurita owns, operates and manages facilities for customers, supplying them with ultrapure water. A business model is developed that represents a fusion of technology, products and services developed to date across the chemicals, facilities and maintenance arms of the business.
2002	Kuritec Singapore Pte. Ltd. launches ultrapure water supply business.
2003	Breakaway of tool cleaning business units from Group companies and establishment of Kuritec Service Co., Ltd.
2004	Kurita Water Industries (Suzhou) Ltd. established as a water treatment facilities production and sales base in China.
2005	Kurita Global Technology Center established through the integration of research and development facilities.
2009	Kurita Chemical Manufacturing Ltd. established as a new subsidiary to manufacture water treatment chemicals.