| 1920 | Jiro Suzuki, President and CEO two generations back, founded Suzuki Iron Works, the first cold drawing plant in the Chubu area, based in Atsuta-ku, Nagoya-shi, where the current headquarters is located. |
| 1945 | The plant was completely burned down during the war. |
| 1949 | Toyoji Suzuki became the president of Suzuki Iron Works, Co. Ltd. Increased the capital to 800,000 yen. |
| 1961 | Built the Odaka Plant in Odaka-cho, Midori-ku, Nagoya-shi to establish volume production capacity. |
| 1964 | Changed the trade name to Suzutoyo seiko Co., Ltd. Increased the capital to 28 million yen. |
| 1969 | Increased the capital to 35 million yen. |
| 1971 | The Odaka Plant became JIS Mark certified. |
| 1973 | Started using a drum bell furnaces to start production of CH materials. |
| 1976 | Started using an eddy current detector to ensure quality assurance. |
| 1983 | Started using a cold pressing machine (weight: 400 tons) to start production using cold forging. |
| 1985 | Purchased the 24,000 ㎡ parcel adjacent to the Odaka Plant. |
| 1986 | Built a new thermal processing plant and started using a roller-hearth STC furnace (Furnace 1) Increased the capital to 50 million yen. |
| 1987 to 1990 |
Started using two part formers and four cold pressing machines to increase production capacity of cold forgings. |
| 1990 | Toyoji Suzuki became the chairman. Tomohiro Suzuki became the president and CEO. |
| 1991 | Started using a large-size long part former. |
| 1994 | Started using an STC furnace (Furnace 2). |
| 1996 | Established a joint venture, T.S.K. FORGING CO.,LTD. in Thailand. Started using two cold pressing machines (weight: 630 tons) |
| 1997 | Started using a cutting machine to start the parts cutting process. Started using an STC furnace (Furnace 3). Increased the capital to 80 million yen. |
| 2000 | Started using an STC furnace (Furnace 4). |
| 2002 | Became ISO9001 certified. |
| 2004 | Became ISO14001 certified. |
| 2006 | Integrated the functions of the headquarters (based in Kanayama) to the Odaka Plant. |
| 2008 | Started using an STC furnace (Furnace 5). |
| 2009 | Built a new plant. |
| 2013 | Became OHSAS18001 certified. |
| 2014 | Started using a Schumag draw bench. |
| 2015 | Started using a large-size 6 die station part former. Established a joint venture, Mirra and Mirra Industries Private Limited in India. |
| 2016 | Started using an STC furnace (Furnace 6). |
| 2019 | Became ISO45001 certified. |
| 2020 | Tomohiro Suzuki became the chairman. Takahiro Suzuki became the president and CEO. |