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 (February 2024: Delisted from the Stock Exchange) |
| 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 | Establish a Production Base in Prachinburi, Thailand (Currently Motherson Yachiyo Siam Automotive Systems Co., Ltd.) |
| May | 1997 | Moved head office to Sayama City in Saitama Prefecture |
| September | 1997 | Established a Production Base in Columbus, Ohio, USA (Currently Motherson Yachiyo Automotive Tech Products of America, Inc.) |
| October | 1997 | Established a second production base in Columbus, Ohio, USA, through a joint venture with a local subsidiary (Currently Motherson Yachiyo AY Manufacturing Ltd.) ※ Became a subsidiary in 2005 (additional equity acquisition) |
| May | 1998 | Established Kameyama Branch in Kameyama City in Mie Prefecture as an integrated processing and shipping plant for service parts |
| January | 1999 | Established a Production Base in Marion, Ohio, USA (Currently Motherson Yachiyo US Automotive Systems, Inc.) |
| 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 a Production Base in Alabama, USA. (2014: Transferred the sheet metal business, and moved the plastic fuel tank business to a new production site in Georgia) |
| April | 2002 | Established a Production Base in Zhongshan, China (Currently Motherson Yachiyo Zhongshan Automotive Module Manufacturing Co., Ltd.) |
| August | 2002 | Making Goshi Giken Co., Ltd. a Subsidiary through Additional Acquisition of Shares (Currently Transferred to Honda) |
| December | 2004 | Listed the shares of the Company on the JASDAQ Securities Exchange currently the Tokyo Stock Exchange JASDAQ (standard)) |
| July | 2005 | Established a Production Base in Wuhan, China (Currently Motherson Yachiyo Wuhan Automotive Module Manufacturing Co., Ltd.) |
| December | 2006 | Honda Motor Co., Ltd. became the parent company of the Company by means of tender offer of the shares in the Company |
| April | 2008 | Established a Production Base in Rajasthan, India (Currently Motherson Yachiyo Automobile Private Limited) |
| September | 2009 | Established a Production Base in Sao Paulo, Brazil (Currently Motherson Yachiyo Automotiva Brasil Industria E Comercio De Pecas Ltda.) |
| February | 2012 | Established a Production Base in Guanajuato, Mexico (Currently Motherson Yachiyo Mexico Automotive S.A. de C.V.) |
| April | 2012 | Established Saitama R&D center in Sayama City in Saitama Prefecture |
| May | 2012 | Established a Production Base in Karawang, Indonesia (Currently PT. Motherson Yachiyo Trimitra Automotive Systems Indonesia) |
| July | 2014 | Started manufacturing wheelchairs for track and field. |
| August | 2014 | Established a Production Base in Carrollton, Georgia, USA (Currently Motherson Yachiyo Automotive Tech Manufacturing of America, LLC) |
| October | 2017 | Launched 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 Kashiwabara plant. |
| April | 2022 | Transitioned from JASDAQ (Standard) to the new market segment (Standard Market) on the Tokyo Stock Exchange. (Delisted in January 2024) |
| February | 2024 | Delisted from the Stock Exchange |
| March | 2024 | Joined the Motherson Group through the acquisition of shares by the group |
| October | 2024 | Changed company name to Motherson Yachiyo Automotive Systems Co., Ltd. |