| May 1963 | Establishment of Sunada Sangyo Co., Ltd. Taiwan Banana Import Company |
| October 1979 | Establishment of Keishin Trading Co.,Ltd. Taiwan Banana Import Company |
| March 2021 | Established Keizan Co.,Ltd. Taiwan Banana Import Company |
| Appointed as Director of Tokyo Fruit Processing and Sales Cooperative Association | |
| August 2022 | Company name changed to Keishin Trading Co.,Ltd Food and liquor import and export company |
| February 2024 | Establishment of Reikatsu Shoji Co., Ltd. Group Company of Keishin Trading Co.,Ltd. |