1917 | Koei Seiyaku Co., Ltd. was founded and began manufacturing acetic acid. |
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1926 | Company name changed to Koei Co., Ltd. |
1931 | Began to manufacture acetone and n-butanol by a fermentation process. |
1934 | Began to manufacture formaldehyde. |
1950 | Began to manufacture meta-aminophenol. Company name changed to Koei Chemical Co., Ltd. |
1952 | Began to manufacture pentaerythritol. |
1959 | Began to manufacture trimethylolpropane and formaldehyde-alcohol solution. |
1962 | Began to manufacture amines. |
1963 | Received "Inoue Award"of Toryo Houchi Shimbun Co., Ltd. (an industry newspaper company) for the manufacture of pentaerythritol. |
1964 | Began to manufacture pyridines commercially. |
1967 | Received "Okouchi Commemorative Award"for the manufacture of pyridines. Built a production plant in Chiba Prefecture and began manufacturing pentaerythritol. |
1969 | Received the "Award for Outstanding Rubber Engineering Techniques". |
1971 | Began to manufacture formaldehyde, trimethylolpropane, hydrosulfite and amines at the Chiba Works. Also began manufacturing neopentylglycol and nalidixic acid. |
1972 | Began to manufacture sodium aluminate and polyaluminium chloride aq. solution. |
1980 | Began to manufacture chemical body warmer. |
1982 | Received the "Endeavor Award"from the Minister for Labor during National Labor Hygiene Week. Built a multi-purpose plant and began production of amines and pyridines derivatives, reinforcing facility as to manufacture fine chemicals. |
1985 | Began to manufacture cyanopyrazine. |
1986 | Began to manufacture dirazep hydrochloride. |
1987 | Received recognition from the Ministry of International Trade and Industry as meeting the "Good Laboratory Practice". |
1989 | Received "Award for excellence"for the Osaka Works and the Research Laboratory from the Minister for Labor during National Labor Hygiene week. |
1990 | Received the "Industrial Technology Award "for development of "CASCON-RESIN (functional modified epoxy resins)"from the Osaka Industrial Research Association. |
1991 | Received the "Technological Prize" from the Catalyst Society of Japan for the industrialization of cyanopyrazine. A multi-storey storage facility for hazardous chemicals was constructed at the Osaka Works. |
1992 | Awarded the "Chemical Technology Prize" by the Kinki Chemical Society for the Development of intermediate for anti-ulcer drug. Received the "Technological Prize" from the Adhesive Society of Japan for the development of epoxy resins adhesives. |
1993 | Expanded production facilities of dipentaerythritol. Recognized by the ministry of Labor as meeting the "Good Laboratory Practice". |
1994 | Began to manufacture ditrimethylolpropane. |
1995 | Built a multi-purpose plant in Chiba Works and began to manufacture intermediates for pharmaceuticals and agricultural chemicals. |
1996 | Committed to "Responsible care". Obtained ISO 9002 certification. Opened liaison office in Dusseldorf, Germany. |
1997 | The Company's shares were listed on the Second Section ofthe Osaka Securities Exchange. Received "Technological Prize" from the Catalyst Society of Japan for "The development of highly selective catalytic production process of pyridine bases". Built a gas phase multi-purpose plant in chiba works and began to manufacture intermediates for pharmaceuticals. |
1998 | Awarded the "Chemical Technology Prize" by the Kinki Chemical Society for the new synthetic method of intermediate chloro nicotinyl insecticide. |
1999 | Obtained ISO 14001 certification New Multipurpose Plant Completed for Production of Pharmaceutical Intermediates at Chiba Works. Opened liaison office in New York, USA. ( - 2003) |
2000 | Paper and pulp related business is transferred to Asahi Chemical Kogyo Co., Ltd. |
2003 | Head Office relocated. |
2005 | Tokyo Office relocated. |
2006 | Most of Headquarters operations relocated to Tokyo Office. |
2010 | Most of Manufacturings operations relocated to Chiba Works. All of Research Laboratories relocated to Chiba Laboratories. New structure of Research Laboratories is opened in Chiba Works. |