| SHIZU LIMITED | Private company limited by shares | Dissolved |
| HK SHIZU TRADE LIMITED | Private company limited by shares | Live |
| SHIZUISHAN ZHONGSHI ACTIVATED CARBON CO., LIMITED | Private company limited by shares | Live |
| Shizuishan Wanli Carbons Co., Limited | Private company limited by shares | Live |
| SHIZUKA Limited | Private company limited by shares | Live |
| SHIZUKU OPTICAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Shizuoka Kabushiki Kaisha Limited | Private company limited by shares | Live |
| SHIZUTANG TRADE LIMITED | Private company limited by shares | Live |