| 1941 | Founded as Narumi Abacus Factory and began sales operations |
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| 1957 | Incorporated as Narumi Abacus Factory Co., Ltd. with capital of 6 million yen |
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| 1961 | Began sales of wooden bead curtains and wooden interior products |
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| 1964 | Renamed Narumi Co., Ltd. |
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| 1965 | Capital increased to 20 million yen |
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| 1966 | Opened Tokyo Sales Office |
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| 1967 | Completed new headquarters building |
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| 1976 | Began importing from China and Hong Kong |
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| 1984 | Began importing from Taiwan |
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| 1998 | Began importing from Vietnam |
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| 1999 | Began importing from Qingdao, China |
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| 2000 | Completed new logistics warehouse in October |
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| 2007 | 50th anniversary of incorporation |
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| 2008 | Launched online sales operations |
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| 2008 | Relocated Tokyo Sales Office to Chiyoda-ku, Tokyo |
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| 2011 | Began importing from India |
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