HISTORY
| Matsushima Tanko Co., Ltd. established (capital: 2 mil. yen) | |
| Oshima coal mine opened | |
| development of Ikeshima coal mine started | |
| shares listed on the Second Section of the Tokyo Stock Exchange | |
| Shares listed on the First Section of the Tokyo Stock Exchange and the Fukuoka Stock Exchange | |
| Oshima coal mine closed | |
| Company name changed to Matsushima Kosan Co., Ltd. | |
| Mitsui Mining Kenzai Hanbai Co., Ltd. absorbed; company name changed to Mitsui Matsushima Co., Ltd. capital totals 3,324,680,000 yen | |
| Mitsui Matsushima Australia Pty. Ltd. established (first overseas branch) | |
| Capital participation in Liddell Joint Venture (Japan marketing rights acquired) | |
| Matsushima Coal Mine Co., Ltd. closed Ikeshima coal mine | |
| Mitsui Matsushima International Pty. Ltd. established (overseas holding company of coal operations) | |
| Establishment of MM Energy Co., Ltd. Entered solar power generation business |
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| 100th anniversary Acquisition of NIPPON STRAW Co., Ltd. and affiliated as a subsidiary |
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| Acquisition of CLEAN SURFACE TECHNOLOGY Co., Ltd.(current:CST Co., Ltd.) | |
| Acquisition of ownership of Mitsui Minatoclub | |
| Shifted to a holding company structure and changed its company name to Mitsui Matsushima Holdings, Co., Ltd. | |
| Acquired MEIKO SHOKAI Co., Ltd. as a subsidiary. Establishment of Minatoclub Operations Co.,Ltd. |
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| Acguired KMT Corporation as a subsidiary. Acguired Sansei Denshi Co.,Ltd. as a subsidiary. Acguired SYSTECH KYOWA CO.,LTD. as a subsidiary. |
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| Transition to the Tokyo Stock Exchange Prime Market. Acquired NIPPON KATAN CO.,LTD. as a subsidiary. Acquired MOS Co.,Ltd. as a subsidiary. |
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| Acquired Plus One Techno Co., Ltd. as a subsidiary. Acquired Japan Chain Holdings, Inc. as a subsidiary. |
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| Acquired MRF Co., Ltd. as a subsidiary. Started equity investment business in MM Investments Co., LTD. |