| SIDA (H. K.) LIMITED | Private company limited by shares | Dissolved |
| ASIA SIDA INFORMATION LIMITED | Private company limited by shares | Live |
| SIDA TRADE CO., LIMITED | Private company limited by shares | Live |
| Bei Sida Electronics Limited | Private company limited by shares | Live |
| SIDA ELECTRONICS LIMITED | Private company limited by shares | Live |
| SIDA ELECTRONICS (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| SIDA ELECTRONICS TECHNOLOGY CO., LIMITED | | Live |
| SIDA ESTATE LIMITED | Private company limited by shares | Dissolved |
| SIDA FLUOROPLASTICS (HONG KONG) LIMITED | Private company limited by shares | Live |
| SIDA GROUP LIMITED | | Live |
| SIDA INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONG KONG SIDA TECHNOLOGY GROUP LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SIDA IMP & EXP TRADE CO., LIMITED | Private company limited by shares | Live |
| SIDA INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| SIDA INDUSTRIAL GROUP LIMITED | Private company limited by shares | Dissolved |
| SIDA INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| SIDA INDUSTRY TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| SIDA INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| USA SIDA INTERNATIONAL INVESTMENT (H K) LIMITED | Private company limited by shares | Dissolved |
| USA SIDA INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| HK SIDA PLASTIC PRODUCTS LIMITED | Private company limited by shares | Live |
| HK SIDA SHARES LIMITED | Private company limited by shares | Live |
| GERMANY SIDA TOOL GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| HK Sida International Trade Co., Limited | Private company limited by shares | Live |
| Sida HK International Trade Limited | Private company limited by shares | Live |
| SIDA TRADING (HK) CO., LIMITED | Private company limited by shares | Live |
| SIDA IMPORT & EXPORT TRADING LIMITED | Private company limited by shares | Live |
| SIDADE TRADING LIMITED | Private company limited by shares | Live |
| SIDAFU DESIGN LIMITED | Private company limited by shares | Live |
| HuanNi .Sidaier International Trade Limited | Private company limited by shares | Live |
| HONGKONG SIDAITE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SIDAK INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Live |
| SIDAK INVESTMENT LIMITED | Private company limited by shares | Live |
| SIDAN LAB LIMITED | | Live |
| ITALY JIENI SIDAN (INTERNATIONAL) LIMITED | Private company limited by shares | Dissolved |
| Sidana Limited | Private company limited by shares | Live |
| Sidana Business Consultancy Limited | | Live |
| Sidanah Limited | Private company limited by shares | Live |
| SIDANNI WHOLE HOUSE CUSTOM FURMITURE CO., LIMITED | Private company limited by shares | Live |
| Sidannnla Limited | Private company limited by shares | Live |
| H.K SIDANQI CLOTHES (GROUP) LIMITED | Private company limited by shares | Dissolved |
| SIDAO INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SIDAR TECHNOLOGY DEVELOPMENT (HK) LIMITED | Private company limited by shares | Live |
| H. K. SIDAR ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SIDAR TECHNOLOGY (H.K.) CO. LIMITED | Private company limited by shares | Dissolved |
| Sidas Technology Limited | Private company limited by shares | Live |
| SiData Limited | | Live |
| SIDATEK (HK) COMPANY LIMITED | Private company limited by shares | Live |
| Sidawei International Trading Co., Limited | Private company limited by shares | Live |
| SIDAX LIMITED | Private company limited by shares | Live |