| 1947 | Apr | Eiichi Otake established Otake Painting Co., Ltd. located in Tokyo Started to paint motorcycle component parts in 1951. |
| 1953 | Aug | Established Yachiyo Painting Co., Ltd. in Tokyo Became appoint plant by Honda Motor Co., Ltd. |
| 1960 | May | Established Suzuka Plant. |
| 1968 | Sep | Changed the corporate name to Yachiyo Industry Co., Ltd. |
| 1972 | Aug | Established Kashiwabara Plant in Saitama Started consignment production of minicar for Honda Motor Co., Ltd. Became related company of Honda Motor Co., Ltd. |
| 1974 | Nov | Established Goshi Giken Co., Ltd., jointly ventured by Honda Motor Co., Ltd. and Sankei Giken Kogyo Co., Ltd. |
| 1976 | Feb | Started consignment production of buggy for Honda Motor Co., Ltd. |
| 1977 | Aug | Started production of auto parts “Fuel tank”. |
| 1981 | Jul | Moved headquarter (within Tokyo). |
| 1983 | Jun | Established Yokkaichi Plant in Mie Pref. |
| 1985 | Aug | Expanded Yokkaichi Plant. Started consignment production of minitruck. |
| 1986 | Jan | Established Tochigi R&D Center in Tochigi Pref. Started production of “Sunroof”. |
| 1989 | Jan | Established Yachiyo of Ontario Mfg., Inc. in Canada. |
| 1994 | Oct | Registered to Japan Securities Dealers Association. |
| 1996 | May Jun Jun |
Started consignment production of minicar. Established Yachiyo Industry UK Ltd. in U.K. Established UYT Limited, in U.K., jointly ventured with other companies. |
| 1997 | Jan May Sep Oct |
Established Siam Yachiyo Co., Ltd. in Thailand. Moved headquarter to Saitama. Established Yachiyo of America Inc. in U.S.A. Established AY Manufacturing Ltd. in U.S.A. |
| 1999 | Jan | Established US Yachiyo Inc. in U.S.A. |
| 2000 | Sep | Established Yachiyo Manufacturing of Alabama LLC. in U.S.A. |
| 2002 | Apr Aug |
Established Yachiyo Zhongshan Manufacturing Co., Ltd. in China. Purchased shares of Goshi Giken Co., Ltd. to be affiliate. |
| 2004 | Dec | Removed register of Japan Securities Dealers Association and registered to JASDAQ Securities and Exchange. |
| 2005 | Jul Oct Nov |
Established Yachiyo Wuhan Manufacturing Co., Ltd. in China. Purchased shares of AY Manufacturing Ltd. to be affiliate. Established Hirata Yachiyo Leasing Ltd. jointly ventured with Hirata Technical Co., Ltd. (currently, H-ONE Co., Ltd.) |
| 2006 | Dec | Became affiliate of Honda Motor Co., Ltd. |
| 2008 | Apr Apr Dec |
Established YG Tech Co., Ltd. in Mie Pref. Established Yachiyo India Manufacturing Private Limited in India. Goshi India Auto Parts Private Limited in India started operations. |
| 2009 | Sep | Established Yachiyo Do Brasil Industria E Comercio De Pecas Ltda. in Brazil. (Subsidiary with consolidated account) |
| 2012 | Feb Apr May |
Established Yachiyo Mexico Manufacturing S.A. De C.V. in Mexico. (Subsidiary with consolidated account) Established Saitama R&D Center in Saitama. Established P.T. Yachiyo Trimitra Indonesia in Indonesia. (Subsidiary with consolidated account). |
