Corporate History

1939Hiratakogyo began operation in Honjo-ku, Tokyo, for the purpose of manufacturing metal press products.1952 Production
1952Hiratakogyo started manufacturing parts for motorcycles and scooters for Honda Motor Co., Ltd.
1953Hiratakogyo changed the company name to Hirata Press Kogyo
1961Hongo seisakusho started operation in Toda-machi, Kita Adachi-gun, Saitama, for the purpose of manufacturing and selling press sheet metal and machined parts.
1967Hirata Press Kogyo and Hongo seisakusho received an order to produce automobile parts from Honda Motor Co., Ltd., and started full-scale mass production.1963 Kameyama
1984Hirata Press Kogyo and Hongo seisakusho entered into a capital participation in KTH Parts Industries Inc. (currently the Company’s consolidated subsidiary) in Ohio in the United States (and thereafter established four bases in North America).
1990Hirata Press Kogyo changed its company name to HIRATA TECHNICAL CO., LTD
1991Hongo seisakusho changed its company name to HONGO CO., LTD.1984 KTH
1996KTH began operations of Kalida Manufacturing, Inc. (KMI) in Kalida, Ohio
1998KTH began operations of KTH Shelburne Manufacturing, Inc., (KSM) in Shelburne, Ontario, Canada
2001KTH began operations of KTH Leesburg Products, LLC. (KLP) in Leesburg, Alabama2010 H-ONE Thailand
2006HIRATA TECHNICAL CO., LTD., and HONGO CO., LTD., merged and changed the company name to H-ONE CO., LTD. Moved the head office to Omiya-ku, Saitama-shi, Saitama
2012Established G-ONE AUTO PARTS DE MEXICO, S.A. DE C.V. in Guanajuato, United Mexican states, through joint investments with G-TEKT CORPORATION2015 KTH R&D Center
2015H-ONE CO., LTD in conjunction with KTH Parts Industries began operations of a Research and Development facilities in Plain City, Ohio