| June, 1917 |
|
Establishment of Toyo Seikan: its head office and the first plant in Osaka |
| March, 1919 |
|
Installation of the first automatic can making machine in Japan and the start of operations |
| September, 1920 |
|
Establishment of the Tokyo Plant |
| September, 1933 |
|
Establishment of the Tobata Plant |
| July, 1935 |
|
Listed on the Osaka Stock Exchange |
| February, 1937 |
|
Establishment of the Shimizu Plant |
| July, 1941 |
|
Under the government request, merger of 8 can making companies including the former Toyo Seikan to form the current Toyo Seikan Kaisha, Ltd. |
| June, 1944 |
|
Transfer of the head office location to Chiyoda-ku, Tokyo |
| May, 1949 |
|
Listed on the Tokyo Stock Exchange |
| June, 1958 |
|
Establishment of the Sendai Plant |
| April, 1960 |
|
Establishment of the Ibaraki Plant |
| August, 1961 |
|
Establishment of the Yokohama Plant |
| April, 1967 |
|
Establishment of the Kawasaki Plant |
| April, 1971 |
|
Establishment of the Saitama Plant and the Takatsuki Plant |
| October, 1972 |
|
Establishment of the Chitose Plant |
| April, 1973 |
|
Establishment of the Hiroshima Plant |
| May, 1974 |
|
Relocation of the Osaka Plant to Izumisano-shi |
| September, 1974 |
|
Establishment of the Kiyama Plant |
| April, 1977 |
|
Establishment of the Ishioka Plant |
| April, 1979 |
|
Establishment of the Kuki Plant |
| October, 1980 |
|
Completion of the new head office building (Saiwai Building) |
| January, 1983 |
|
Relocation of the Sendai Plant to Minato, Miyagino-ku. |
| April, 1993 |
|
Establishment of the Toyohashi Plant |
| January, 2000 |
|
Establishment of the Shizuoka Plant |
| March, 2000 |
|
Closing of the Tokyo Plant after integrating it into the Yokohama Plant |
| April, 2003 |
|
Integration of the Tobata Plant into the Kiyama Plant |
