| 1936 |
Toyota Finance Corporation, which conducts sales finance for Toyota vehicles, was established in 1936. |
| 1948 |
Founded Maruichi Steel Pipe Manufacturing Co., Ltd. in 1948 (Showa 23). |
| 1948 |
In 1948, the trading division was inherited and established as Nisshin Tsusho Co., Ltd., the origin of current Toyota Tsusho. |
| 1948-07 |
Inherited Toyota Sangyo Co., Ltd.'s trading division and established Nisshin Tsusho Co., Ltd. |
| 1948-08 |
Established the Tokyo branch. |
| 1956 |
In 1956, changed the company name to Toyota Tsusho Corporation, grew as a trading company of the Toyota Group through exports of finished vehicles, and listed on the Nagoya and Tokyo Stock Exchanges. |
| 1960 |
Renamed to Maruichi Steel Tube Ltd. in 1960 (Showa 35). |
| 1960-10 |
October 1960, established Toyota Tsusho America, Inc. |
| 1961 |
Established Tokyo Factory in 1961 (Showa 36). |
| 1961-10 |
October 1961, opened New York office building. |
| 1962 |
Listed on the stock exchange in 1962 (Showa 37). |
| 1965 |
Established Sakai Factory in 1965 (Showa 40). |
| 1966 |
Established Nagoya Factory (now Nagoya Plant) in 1966 (Showa 41, merged into current Nagoya Factory in Showa 59). |
| 1970 |
Established Hokkaido Maruichi Steel Pipe Co., Ltd. in 1970 (Showa 45). |
| 1972 |
Established Sakai Special Products Factory and started operations of Indonesia Steel Pipe Co., Ltd. (ISTW) in 1972 (Showa 47). |
| 1973 |
Established Tokyo Second Factory (now Tokyo Factory) in 1973 (Showa 48). |
| 1974 |
Established Shikoku Maruichi Steel Pipe Co., Ltd. and Kyushu Maruichi Steel Pipe Co., Ltd. in 1974 (Showa 49). |
| 1977 |
Established Nagoya Second Factory (now Nagoya Factory) in 1977 (Showa 52). |
| 1977-01 |
January 1977, listed on the Tokyo Stock Exchange. |
| 1978 |
Established Maruichi American Corporation (MAC) in the United States in 1978 (Showa 53). |
| 1985-10 |
October 1985, upgraded the Tokyo branch to Tokyo headquarters, adopting a dual-headquarters system with Nagoya headquarters. |
| 1987-07 |
July 1987, changed the company name to Toyoda Tsusho Corporation in kanji, and changed the English company name from TOYODA TSUSHO KAISHA, LTD. to TOYOTA TSUSHO CORPORATION. |
| 1989 |
Established Taku Factory in 1989 (Heisei 1). |
| 1995 |
Established Kashima Special Products Factory in 1995 (Heisei 7). |
| 1996 |
Merged with Tokyo Maruichi Trading (capital: 1.65669 billion yen). |
| 2000-04 |
Merged with Kosho Corporation in April 2000 |
| 2000-11 |
In November 2000, acquired part of the steel division of Toho Corporation and its subsidiaries' operations |
| 2005 |
Established Maruichi Metal Products (Foshan) Co., Ltd. in China in 2005 (Heisei 17). |
| 2006 |
Acquired shares of Sun Steel Corporation (SUNSCO) in Vietnam and also acquired shares of Toyo Special Steel Industry Co., Ltd. in 2006 (Heisei 18). |
| 2006-04 |
Merged with Toho Corporation in April 2006 |
| 2008 |
Acquired shares of Leavitt Tube Company, LLC in the United States in 2008 (Heisei 20). |
| 2009 |
In 2009 (Heisei 21), the company made Alpha Metal Inc. a subsidiary and acquired shares of KUMA STAINLESS TUBES LIMITED in India. |
| 2012 |
In 2012 (Heisei 24), established MARUICHIMEX S.A. de C.V. (MMX) in Mexico. |
| 2012-01 |
In January 2012, acquired additional shares of Uras Energy Holdings Co., Ltd. |
| 2012-03 |
Acquired shares of Elemetec Corporation in March 2012 |
| 2012-12 |
Acquired shares of CFAO SAS in December 2012 |
| 2014-12 |
In December 2014, acquired additional shares of Toho Electronics Corporation and made it a wholly owned subsidiary |
| 2015 |
In 2015 (Heisei 27), established Maruichi Oregon Steel Tube, LLC (MOST) in the United States. |
| 2016-12 |
In December 2016, acquired additional shares of CFAO SAS and made it a wholly owned subsidiary (delisted from Euronext Paris) |
| 2017-04 |
In April 2017, integrated the businesses of Toho Electronics Corporation and Toyotsu Electronics Corporation, and started operations as Nexty Electronics Co., Ltd. |
| 2018 |
In 2018 (Heisei 30), established MARUICHI PHILIPPINES STEEL TUBE INC. (MPST) in the Philippines. |
| 2020 |
In 2020 (Reiwa 2), acquired shares of Kobe Steel Pipe Co., Ltd. (currently Maruichi Stainless Steel Pipe Co., Ltd.). |
| 2021 |
In 2021 (Reiwa 3), acquired Geneva Structural Tubes, LLC (MNT) in the United States. |
| 2022 |
In 2022 (Reiwa 4), established MARUICHI Stainless Tube Texas Corporation (MST-X) in the United States. |
| 2022-08 |
In August 2022, acquired additional shares of Uras Energy Holdings Co., Ltd. and made it a wholly owned subsidiary |
| 2023 |
In 2023 (Reiwa 5), made Toyo Special Steel Industry Co., Ltd. a consolidated subsidiary. |
| 2024 |
In 2024, fully acquired Terrace Energy Corporation, accelerating growth in new business areas such as becoming the largest solar power generator in Japan. |
| 2024-10 |
In October 2024 (Reiwa 6), acquired shares of Sato Steel Manufacturing Co., Ltd. |
