| 1952 March |
Okazaki Jozo (Brewing) Co., Ltd. established with capital of 1.5 million yen for the manufacture of miso (soybean paste) in Okazaki (Aichi prefecture,Japan). |
| 1964 September |
Company name changed to Okazaki Marusan Co., Ltd. |
| 1972 March |
Company headquarters and plant relocated to current address. |
| 1980 April |
Construction of a soymilk plant completed at the Headquarters. |
| 1983 January |
Company name changed to MARUSAN-AI Co., Ltd. Capital increased to 230 million yen. |
| 1985 June |
American Soy Products Inc. established as a joint venture in the United States and production of soymilk launched. |
| 1987 September |
Capital increased to 345 million yen. |
| 1992 July |
Takumi Co., Ltd established (Toyama prefecture) |
| 1993 January |
Miso and beverage plants became a JAS(Japan Agricultural Standard) -certified (certified by Ministry of Agriculture, Forestry and Fisheries of Japan.) |
| 1996 March |
Launch of trial production of miso in Zhejiang province,China . (technical cooperation with a local company) |
| 1996 August |
Marketing launched of 'Aji-no-kyoen(Harmony of three flavors )' miso -the first product of this kind in the industry made with three types of miso koji (rice, barley and soybeans). |
| 1997 February |
Marketing launched of the first fermented (by lactobacillus and yeast) soymilk in the industry. |
| 1999 February |
Marketing launched of 'Mame-piyo ' soymilk (soymilk for children). |
| 2001 June |
Listed on the Nagoya Stock Exchange (2nd section). Capital increased to 562.14 million yen. |
| 2001 September |
Certified ISO9001:1994. (soymilk products) |
| 2002 February |
Certified as an organic soymilk manufacturer under national organic program (Organic JAS ). |
| 2003 April |
Internet retailing launched on the website. |
| 2003 September |
Shifted to ISO9001:2000. The scope includes other soft drinks. |
| 2003 December |
Stocks purchase in Tamai-miso Co., Ltd. (to make the company a subsidiary). |
| 2004 March |
New soymilk plant in Gunma prefecture launched production. |
| 2004 September |
The scope of ISO9001:2000 expanded to include miso. |
| 2007 February |
Capital increased to 865.44 million yen. |
| 2007 Octorber |
Open a new distribution center in Okazaki. |
