| July, 1972 | Tokyo Kogata Jidousya Syoukai (Co.,Ltd,) was established with the capital of 4 million yen. |
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| November, 1972 | The company name was changed into MIKUNI SOGYO CORPORATION (三國総業株式会社) |
| January, 1973 | It became a capital of 16 million yen by capital increase. |
| December, 1981 | MIKUNI-MAKINO CO.,LTD.(at present ACRITECH CORPORATION) was established at Oimachi, Ashigarakamigun, Kanagawa Pref. |
| April, 1983 | The sales office “Kikugawa Tool Center” was established at Kikugawachou, Shizuoka Pref. |
| September, 1983 | The sales office “Odawara Tool Center” was established. |
| March, 1984 | Mikuni Living Service Coporation was established at Odawara-shi, Kanagawa Pref. |
| April, 1986 | The Morioka tool center was established at Takizawa-Village, Iwate Pref. |
| April, 1987 | The Taiwan branch office was established at Taipei city, Taiwan. Sales of machines, jigs, tools, construction stores, parts, etc. was started. Our company established TAIWAN MIKUNI SOHGYO CORPOATION of the overseas subsidiary which did 100% of investment at Taiwan, Taipei city. |
| January, 1994 | The import sales of the rare earth from China was started. |
| April, 1994 | The Shanghai office was established at Shanghai city, China. |
| December, 1999 | The head office was relocated from Shinanomachi to Roppongi. The company name was changed into MIKUNI SOGYO CORPORATION (ミクニ総業株式会社). |
| October, 2003 | Tianjin Mikuni Makino Machinery Co.,Ltd. was founded at Tianjin city, China. |
| June, 2006 | The capital was increased to 35 million yen. |
| December, 2009 | SOGYO (Shanghai) Trading Co.,Ltd. was founded at Shanghai. City, China. |
