| 1948 May. 5 | Predecessor Company : Mizutani Kosan Co., Ltd. founded at Kitashinchi, Osaka, Japan for the purpose of sale of refractories. |
|---|---|
| 1952 Oct. 14 | Started Agency business to sell refractories manufactured by Asahi Glass Co., Ltd.(now AGC Inc.) Fuji Kozai Co., Ltd. established at 33 Umeda Kita-Ku, Osaka, Japan with capital of 5million yen. Refractories division started the operation. |
| 1955 | Minerals division started the operation. |
| 1961 Jan. 15 | Refractories division started the business to sell refractories manufactured by Asahi Glass Co.,Ltd. as their sales distributor at major cities in Japan. Opened Nagoya sales office. |
| 1962 | Opened Tokyo sales office. |
| 1965 Mar. 10 | Opened Kokura sales office. Increased capital to 10 million Yen. |
| 1966 Nov. 30 | Head office building at the present location completed. Started Real estate business. |
| 1973 | Increased capital to 100 million Yen. |
| 1975 | Minerals division started the business to import raw materials "Andalusite" directly from South Africa. |
| 1979 | Refractories division got a construction license and started the business to implement design and construction of furnace. |
| 1988 | Minerals division started the business to import raw materials from China. |
| 1990 Sep. 30 | New head office building "Shinsankei Bldg." at the present location completed. |
| 1998 Apr. 1 | Tokyo Sales office promoted to Tokyo Branch. |
| 2018 May. 5 | The 70th anniversary of the foundation. |
| 2020 Nov. 27 | New head office building "Nishiumedasankei Bldg." at the present location completed. |
| 2022 Oct. 14 | The 70th anniversary of the establishment. |