| COILS CHINA ELECTRONIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| COIL TECH COILS PRECISION INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| COILS AUTOMOTIVE COMPONENTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| C.T.C. COILS LIMITED | Private company limited by shares | Live |
| COILS ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| KAI YU ELECTRONIC COILS MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| B&T COILS ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| HI COILS ELECTRONICS CO., LIMITED | | Live |
| YOU SHENG COILS ELECTRONICS LIMITED | Private company limited by shares | Live |
| YOTO COILS ELECTRONICS (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| FERRITE COILS COMPANY LIMITED | Private company limited by shares | Dissolved |
| GENERAL COILS LIMITED | Private company limited by shares | Dissolved |
| HONG KONG COILS LIMITED | Private company limited by shares | Dissolved |
| B & T COILS PRODUCTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| TOP-VIEW COILS PRODUCTS COMPANY LIMITED | Private company limited by shares | Live |
| COILS PROPERTY MANAGEMENT LIMITED | Private company limited by shares | Live |
| Coils Retail Limited | Private company limited by shares | Live |
| CHI SHING ELECTRONIC COILS LIMITED | Private company limited by shares | Dissolved |
| COILS VENTURE COMPANY LIMITED | Private company limited by shares | Live |
| COILSUN ENGINEERING LIMITED | Private company limited by shares | Live |