| SINOHONGKONG HUITONG INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| SINO-HONGKONG INDUSTRIES INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO-HONGKONG EDUCATIONAL INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINO-HONGKONG INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Sino-Hongkong Luxury International Holdings Group Limited | Private company limited by shares | Live |
| HND SINO-HONGKONG LOGISTICS CO., LIMITED | Private company limited by shares | Live |
| SINO-HONGKONG MANUFACTURE LIMITED | Private company limited by shares | Dissolved |
| SINO-HONGKONG PROPERTY LIMITED | Private company limited by shares | Dissolved |
| SINO-HONGKONG TEXTILES LIMITED | Private company limited by shares | Dissolved |
| SINO-HONGKONG TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HAI SAN SINO-HONGKONG TRANSPORT LIMITED | Private company limited by shares | Dissolved |
| SINOHORSE GROUP LIMITED | Private company limited by shares | Live |
| SINOHORSE INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| SINOHOST LIMITED | Private company limited by shares | Live |
| SINOHOUSE (CHINA) LIMITED | Private company limited by shares | Live |
| SINOHOWO HOLDING LIMITED | Private company limited by shares | Live |
| HONG KONG SINOHUGE GROUP LIMITED | Private company limited by shares | Live |
| SINO-HUICHENG STEEL INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| CHINA SINOHYDRO CITY DEVELOPMENT INTERNATIONAL CONSTRUCTION LIMITED | Private company limited by shares | Live |
| Sinohydro Power Construction Energy Technology Limited | | Live |
| Sinohydro (Hong Kong) Holding Limited | Private company limited by shares | Live |
| SINOHZOJU New Energy Hong Kong Limited | | Live |