| CRYSTAL-IT LIMITED | Private company limited by shares | Live |
| CRYSTALITE COMPANY LIMITED | Private company limited by shares | Dissolved |
| CRYSTALITE ELECTRICAL ENGINEERING (DEVELOPMENT) LIMITED | Private company limited by shares | Live |
| CRYSTALITE ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| CRYSTALITE ELECTRICAL ENGINEERING (INVESTMENT) LIMITED | Private company limited by shares | Live |
| CRYSTALITE ELECTRICAL ENGINEERING (HK) LIMITED | Private company limited by shares | Live |
| MAYLAND CRYSTALITE MANUFACTURING COMPANY, LIMITED | Private company limited by shares | Dissolved |