| 1898 | TAKENAKA SHOTEN founded in Wakayama as a warehouse dealer of domestic cotton yarns and cotton textiles | ||
| 1918 | Reorganized into TAKENAKA SHOTEN CO., LTD | ||
| 1943 | Company name changed to TAKENA CO., LTD | ||
| 1963 | Capital acquired by SUMITOMO CORPORATION | ||
| 1969 | Merged with NISHIMURA BOUEKI CO., LTD. into SUMISHO SENI CO., LTD | ||
| July 1982 | Company name changed to SUMISHO TEXTILE CO., LTD. | ||
| March 1987 | TOKYO SUMISHO TEXTILE CO., LTD. founded separately as a 100% subsidiary of SUMITOMO CORPORATION |
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| April 1995 | Acquired SUMISHO SENI BOEKI CO., LTD. Company name changed to SUMISHO SENI CO., LTD. Headquarters relocated to Osaka. |
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| April 2000 | Acquired SUMISHO TEXTILE CO. LTD. Company name changed to SUMISHO TEXTILE CO., LTD. |
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| April 2003 | Tokyo branch spun off as SUMITEX CO., LTD. | ||
| October 2004 | Capital increased to 830,000,000yen. Headquarters relocated to SUMITOMO building. |
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| April 2007 | Acquired SUMITEX CO. LTD. Company name changed to SUMITEX INTERNATIONAL CO. LTD. Headquarters relocated to Tokyo. |
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