History
| August | 1953 | Established Yachiyo Painting Co., Ltd. to engage in the baking finish of metals Appointed as a designated plant by Honda Motor Co., Ltd. |
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| May | 1960 | Established Suzuka Plant in Suzuka City in Mie Prefecture to engage in the buffing and painting of motorcycle parts and components |
| September | 1968 | Changed company name to Yachiyo Industry Co., Ltd. |
| August | 1972 | Established Kashiwabara Plant in Sayama City in Saitama Prefecture and started commissioned production of mini vehicles for Honda Motor Co., Ltd. Accepted an investment from Honda and became its affiliated company |
| November | 1974 | Jointly established Goshi Giken Co., Ltd. with Honda Motor Co., Ltd. and Sankei Giken Kogyo Co., Ltd. |
| February | 1976 | Started commissioned production of buggies for overseas markets for Honda Motor Co., Ltd. |
| August | 1977 | Started production of fuel tanks for vehicles |
| June | 1983 | Established Yokkaichi Factory in Yokkaichi City in Mie Prefecture to engage in the pressing and welding of automotive parts |
| August | 1985 | Expanded Yokkaichi Factory and started commissioned production of mini trucks for Honda Motor Co., Ltd. |
| January | 1986 | Established Tochigi R&D Center in Sakura City in Tochigi Prefecture |
| June | 1986 | Started production of sunroofs for vehicles |
| January | 1989 | Established first overseas production base in Canada (currently the entire business has been transferred) |
| October | 1994 | Registered stock of the Company as over-the-counter stock with the Japan Security Dealers Association |
| May | 1996 | Started commissioned production of mini passenger vehicles at Yokkaichi Factory for Honda Motor Co., Ltd. |
| June | 1996 | Established Yachiyo Industry (UK) Limited in the UK |
| January | 1997 | Established Siam Yachiyo Co., Ltd. (currently a consolidated subsidiary) in Thailand |
| May | 1997 | Moved head office to Sayama City in Saitama Prefecture |
| September | 1997 | Established Yachiyo of America Inc. (currently a consolidated subsidiary) in the U.S.A. |
| October | 1997 | Jointly established AY Manufacturing Ltd. (currently a consolidated subsidiary) in the U.S.A. with other local corporations |
| May | 1998 | Established Kameyama Branch in Kameyama City in Mie Prefecture as an integrated processing and shipping plant for service parts |
| January | 1999 | Established US Yachiyo, Inc. (currently a consolidated subsidiary) in the U.S.A. |
| November | 1999 | Started producing 4 types of 6-layer plastic fuel tanks for the first time in Japan. Adopted to Honda Insight and Odyssey 4WD. |
| September | 2000 | Established Yachiyo Manufacturing of Alabama, LLC (name changed to Yachiyo Manufacturing of America, LLC (currently a consolidated subsidiary) in October 2014) in the U.S.A. |
| April | 2002 | Established Yachiyo Zhongshan Manufacturing Co., Ltd. (currently a consolidated subsidiary) in China |
| August | 2002 | Additionally acquired shares in Goshi Giken Co., Ltd. to make it a subsidiary of the Company (currently a consolidated subsidiary) Made also Uemura Tec Co., Ltd., a domestic subsidiary of Goshi Giken Co., Ltd., Siam Goshi Manufacturing Co., Ltd. (Thailand) and Goshi-Thanglong Auto-Parts Co., Ltd. (Vietnam), overseas subsidiaries of Goshi Giken Co., Ltd., subsidiaries of the Company (All three companies are currently consolidated subsidiaries of the Company.) (Currently, Goshi Giken Co., Ltd. is transferring all its business) |
| December | 2004 | Listed the shares of the Company on the JASDAQ Securities Exchange currently the Tokyo Stock Exchange JASDAQ (standard)) |
| July | 2005 | Established Yachiyo Wuhan Manufacturing Co., Ltd. (currently a consolidated subsidiary) in China |
| October | 2005 | Additionally acquired equity interest in AY Manufacturing Ltd. (U.S.A.) (currently a consolidated subsidiary) to make it a subsidiary of the Company |
| December | 2006 | Honda Motor Co., Ltd. became the parent company of the Company by means of tender offer of the shares in the Company |
| May | 2007 | Established Goshi India Auto Parts Private Ltd. (currently a consolidated subsidiary) in India |
| April | 2008 | Established Yachiyo India Manufacturing Private Ltd. (currently a consolidated subsidiary) in India |
| September | 2009 | Established Yachiyo do Brasil Industria e Comercio de Pecas Ltda. (currently a consolidated subsidiary) in Brazil |
| February | 2012 | Established Yachiyo Mexico Manufacturing S.A. de C.V. (currently a consolidated subsidiary) in Mexico |
| April | 2012 | Established Saitama R&D center in Sayama City in Saitama Prefecture |
| May | 2012 | Established PT. Yachiyo Trimitra Indonesia (currently a consolidated subsidiary) in Indonesia |
| July | 2014 | Started manufacturing wheelchairs for track and field. |
| December | 2014 | Established Yachiyo Germany GmbH (currently a consolidated subsidiary) in Germany |
| April | 2016 | In line with the business transfer of MSD Corporation, Goshi-Tec Co., Ltd. (merged with Goshi-Giken Co., Ltd. in April 2020), Goshi-Tec Corporation of Kumamoto Prefecture, and Goshi-Philippines-affiliated and Laguna Associe Realty-affiliated companies of the Philippines, both of which are currently consolidated subsidiaries of the Company |
| October | 2017 | Released our original custom parts “Yachiyo Custom Parts”. |
| April | 2018 | Transfer of the finished vehicle business to Honda Motor Co., Ltd., was completed and consignment production of the mini-vehicles was terminated |
| April | 2021 | Production of a “driving simulator” for safe driving education started at the Kashiwara plant. |
| April | 2022 | Transitioned from JASDAQ (Standard) to the new market segment (Standard Market) on the Tokyo Stock Exchange. (Delisted in January 2024) |