| 1899 | Torakichi Iino founded Iino Shokai in Maizuru.Kyoto, and the company began stevedoring coal and transporting it by barge. |
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| 1918 | Iino Shoji Kaisha, Ltd., was established as the successor to Iino Shokai with capital of 1million yen. |
| 1922 | Iino kisen kaisha,Ltd. (sister company of Iino Shoji Kaisha, Ltd.), was Established with capital of 200,000 yen to assume the carriage of goods by sea by Iino Shoji Kaisha,Ltd. |
| 1929 | The company's first tanker, the Takatori Maru No.1 (1,226KDWT) was built. |
| 1931 | Japan's first oceangoing tanker, the first Fujisan Maru (13,586KDWT) was built. |
| 1941 | Iino Shoji Kaisha, Ltd., merged with Iino Kisen kaisha, Ltd., and was renamed Iino Kaiun Sangyo Kaisha, Ltd. |
| 1944 | Iino Kaiun Sangyo Kaisha, Ltd., was renamed Iino Kaiun Kaisha, Ltd. |
| 1949 | The company's stock was listed on the Tokyo Stock Exchange and six order domestic stock exchanges, including the Osaka Securities Exchange, by October 1952. |
