| Aug.1947 | Minoura Pharmacy was established |
| Mar.1957 | Kansai Catalyst Co.,Ltd. was established at |
| 18,Minamishimizu-cho 3-Chome,Sakai City |
| May.1960 | Head office and Sakai plant moved to larger premises |
| at 3-13,Kashiwagi-cho 1-chome,Sakai City |
| Nov.1964 | The export of catalyst and catalyst technology commenced |
| in accordance with the Japan-U.S.S.R. Export Agreement. |
| Apr.1965 | No.2 plant commissioned at 1-37, |
| Hamadera Ishizu-cho 1-Chome,Sakai City |
| Aug.1965 | Tabuse plant established at 3440 Ogo,Oaza,Tabuse-cho, |
| Kumage-gun,Yamaguchi Prefecture |
| Nov.1972 | Tokyo business office was established at 8-10, |
| Matsubara 6-chome,Setagaya-ku,Tokyo. |
| Jun.1974 | Treatment plant for cadmium batteries was erected in order to |
| combat pollution and recycle natural resources. |
| Apr.1979 | Tokyo business office was moved to the Ebisu Building at 2-11, |
| Nihonbashi Honcho 4-chome,Chuo-ku,Tokyo. |
| Apr.1983 | New head office building was erected to house the head office |
| at 3-13,Kashiwagi-cho 1-chome,Sakai City. |
| Apr.1983 | New Gifu plant was established at 4023 Umedaira, |
| Kasahara-cho,Toki-gun,Gifu Prefecture |
| Oct.1986 | Central Research Institute was entablished |
| Aug.1994 | New waste water treatment plant was |
| established at the Yamaguchi plant. |
| Dec.1995 | Number of 3rd-party distributed shares |
| increased to total of 25,000 shares |
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