| Jun.,1948 | Estabilished Mtsuda Company Limited in Osaka. \1,000,000 for capital. |
| Jun.,1971 | Export Export business was started. |
| Mar.,1973 | Import business was started. |
| Mar.,1974 | Increased capital to \3,000,000. |
| Aug.,1976 | Increased capital to \6,000,000. |
| Apr.,1977 | Increased capital to \10,000,000. |
| Feb.,1980 | Started to import Rosary materials. Increased capital to \20,000,000 |
| Feb.,1986 | Established Beijing Office. Trading with China was started. |
| Nov.,1994 | Established Kyoto Office to expand Rosary bussiness. |
| May.,1995 | Established Shanghai Office to to control trading with China.Beijing Office was closed. |
| Jun.,1997 | 50th years anniversary. |
| Jul.,1998 | Agent agreement was signed with Connoisseurs Products Corporation. Business of Jewellery Cleaner was started. |
| Jun.,2002 | 55th years anniversary. |