| SAN'AN CHINA LIMITED | Private company limited by shares | Live |
| SANAN ENTERPRISES (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sanan Optoelectronics Hong Kong Company Limited | Private company limited by shares | Live |
| Sanan Optoelectronics Telecommunication Company Limited | Private company limited by shares | Live |
| San'an Technology Enterprise Limited | Private company limited by shares | Live |
| HK SANAN TRADING LIMITED | Private company limited by shares | Live |
| San'an Sewage Treatment Limited | Private company limited by shares | Live |