April |
1935 |
Established. |
July |
1936 |
Organization changed to Mitajiri Chemical Industry Co., Ltd. |
April |
1936 |
Sodium sulfate production measures completed. |
December |
1976 |
Sodium hydrogen sulfate production measures completed. |
October |
1981 |
Floor material production measures completed. |
August |
1984 |
Plastic injection molding factory completed. |
October |
1985 |
Research tower completed. |
April |
1990 |
Designated a model small- to medium-sized streamlined factory. |
February |
1991 |
Establishment of joint-venture company Sunlight. |
November |
1994 |
Floor material automated production measures completed. |