| Company Name | KTH Parts Industries Inc. |
| Address | 1111 N. State Route 235, P.O. Box 0940, St. Paris, Ohio 43072 |
| Phone | TEL: 937-663-5941 FAX: 937-663-4690 |
| Established | 1984 |
| Fiscal Year | April 1 to March 31 |
| Business Outline | Sales and Manufacture Automotive Parts |
| Parent Name | H-ONE CO., LTD |
| Established | 2006 merger: Hirata (1939) & Hongo (1961) |
| Stock Exchange Listing | OK Tokyo Stock Exchange, Prime Market |
| Address | 11-5, Sakuragi-cho 1-chome, Omiya-ku, Saitama-shi, Saitama 330-0854, Japan |
| Phone | TEL: 048-643-0010 FAX: 048-643-0040 |
| Website | http://www.h1-co.jp/eng/ |
| Clients | Honda Motor Co., Ltd., Daihatsu Motor Co., Ltd., Hino Motors Ltd., Mitsubishi Motors Corporation, Toyota Motor Corporation, Nissan Motor Co., Ltd., Fuji Heavy Industries Ltd., |