| DIA KOWA LIMITED | Private company limited by shares | Live |
| KOWA COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOWA LIMITED | Private company limited by shares | Live |
| KOWA ASIA LIMITED | Private company limited by shares | Live |
| KOWA BUSSAN COMPANY LIMITED | Private company limited by shares | Live |
| KOWA ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| KOWA ELECTRONIC COMPANY LIMITED | Private company limited by shares | Live |
| KOWA (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| KOWA INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| KOWA Industrial Electronics Co., Limited | Private company limited by shares | Live |
| KOWA INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| KOWA LEASE ( HONG KONG ) COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOWA LINE LIMITED | Private company limited by shares | Dissolved |
| KOWA ORISON LIMITED | Private company limited by shares | Live |
| KOWA RESISTORS MANUFACTORY, LIMITED | Private company limited by shares | Dissolved |
| KOWA SANGYO COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOWA TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| KOWA TOOLING LIMITED | Private company limited by shares | Live |
| KOWA TOURS LIMITED | Private company limited by shares | Live |
| KOWA TRADING LIMITED | Private company limited by shares | Live |
| KOWA TRADING COMPANY ( HONG KONG ) LIMITED | Private company limited by shares | Dissolved |
| KOWA VERTRIEBS LIMITED | Private company limited by shares | Dissolved |
| KOWADO COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOWALL ENERGY CO., LIMITED | Private company limited by shares | Live |
| KOWAN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| KOWAN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| KOWAN INVESTMENTS LIMITED | Private company limited by shares | Live |
| KOWARE ENTERPRISES LIMITED | Private company limited by shares | Live |
| KOWATEX LIMITED | Private company limited by shares | Dissolved |
| KOWATEX INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| KOWATEX INVESTMENT LIMITED | Private company limited by shares | Live |
| KOWAWOODS COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOWAY COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOWAY LIMITED | Private company limited by shares | Dissolved |
| KOWAY LIMITED | Private company limited by shares | Dissolved |
| KOWAY ENTERPRISES LIMITED | Private company limited by shares | Live |
| KOWAYTEX LIMITED | Private company limited by shares | Dissolved |