| SINA LIMITED | Private company limited by shares | Dissolved |
| SINA LIB LIMITED | Private company limited by shares | Dissolved |
| SINACELL ELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| Sinack(China)Technology Limited | | Live |
| SINACO LIMITED | Private company limited by shares | Dissolved |
| Sinaco Limited | Private company limited by shares | Live |
| SINADA TRDING CO., LIMITED | Private company limited by shares | Dissolved |
| SINADA SALES LIMITED | Private company limited by shares | Dissolved |
| SINAE LIMITED | Private company limited by shares | Dissolved |
| SINAE INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| Sinae Consulting Limited | Private company limited by shares | Live |
| SINAE INTERNATIONAL HOLDING COOPERATION LIMITED | Private company limited by shares | Live |
| SINAER CO., LIMITED | Private company limited by shares | Live |
| SINAFRICA FALCO LIMITED | Private company limited by shares | Live |
| SINAGRO HK LIMITED | Private company limited by shares | Dissolved |
| SINAGUIDE LIMITED | Private company limited by shares | Live |
| SINAGY LIMITED | Private company limited by shares | Live Commenced dormancy on 01-Feb-2016 |
| SINAI LIMITED | Private company limited by shares | Dissolved |
| Sinai Enterprises Limited | Private company limited by shares | Live |
| SINAI MOON COMPANY LIMITED | Private company limited by shares | Live |
| Sinaif Technology (Hong Kong) Limited | Private company limited by shares | Live |
| SINAISTAR INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| Sinak Limited | Private company limited by shares | Live |
| SINAL (GROUP) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINAL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINAL TRADING COMPANY LIMITED | Private company limited by shares | Live |
| Sinalaw Asia Pacific Limited | Private company limited by shares | Dissolved |
| SINALBA LIMITED | Private company limited by shares | Live |
| SINALEX LIMITED | | Live |
| SINALEY HOLDINGS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINALOG INTERNATIONAL LOGISTICS CO., LIMITED | Private company limited by shares | Live |
| SINALON CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| SIN-ALP Invest Limited | Private company limited by shares | Live |
| SINAM LIMITED | Private company limited by shares | Live |
| SINAMET GROUP LIMITED | Private company limited by shares | Live |
| SINAMOBI ELECTRONIC & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINAN LIMITED | Private company limited by shares | Live |
| SINAN CONSULTING LIMITED | Private company limited by shares | Live |
| SINAN ENGINEERING LIMITED | Private company limited by shares | Live |
| SINAN ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINAN GROUP LIMITED | Private company limited by shares | Live Commenced dormancy on 22-Dec-2015 |
| SINAN INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| SINAN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Sinan Technology Limited | Private company limited by shares | Live |
| SINANOVA LIMITED | Private company limited by shares | Live |
| SINANTE TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sinapolis Limited | Private company limited by shares | Live |
| SINAPSES ASIA LIMITED | Private company limited by shares | Live |
| SINAPSIA LIMITED | Private company limited by shares | Dissolved |
| SINARAL HOLDING LIMITED | Private company limited by shares | Live |
| SINARAS LIMITED | Private company limited by shares | Live |
| SINARES INDUSTRY & TRADE CO., LIMITED | Private company limited by shares | Dissolved |
| Sinarin Investment Limited | Private company limited by shares | Live |
| SINAROME SCIENCE & TECHNOLOGY GROUP CO., LIMITED | Private company limited by shares | Live |
| SINASIA LIMITED | Private company limited by shares | Dissolved |
| SINASIA LIMITED | Private company limited by shares | Live |
| SINASIA INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINASIA-WIDE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HK SINASUN TECH CO., LIMITED | Private company limited by shares | Live |
| SINATA TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| SINATA INTERNATIONAL (H.K.) CO., LIMITED | Private company limited by shares | Live |
| SINATALOW INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Sinatec Limited | Private company limited by shares | Live |
| SINATEC SENSORS LIMITED | Private company limited by shares | Live |
| SINATIE TRADE CO., LIMITED | Private company limited by shares | Live |
| SINATIS LIMITED | Private company limited by shares | Live |
| SINATONE LIMITED | Private company limited by shares | Live |
| N. V. SINATRA LIMITED | Private company limited by shares | Dissolved |
| in : pak Sinatra Import and Export Trading Co., Limited | Private company limited by shares | Live |
| SINATRANS LIMITED | Private company limited by shares | Live |
| SINATREND LIMITED | Private company limited by shares | Live |
| SINAU GROUP LIMITED | Private company limited by shares | Live |
| SINAU INDUSTRY (GROUP) CO., LIMITED | Private company limited by shares | Live |
| SINAU YACHT CO., LIMITED | Private company limited by shares | Live |
| Sinauva International Limited | Private company limited by shares | Live |
| SINAVIZION LIMITED | Private company limited by shares | Dissolved |
| SINAVOR INC LIMITED | Private company limited by shares | Live |
| SINAWEI Co., Limited | Private company limited by shares | Live |
| SINAWEI TRADE CO. LIMITED | Private company limited by shares | Live |
| SINAXIA INVESTMENTS LIMITED | Private company limited by shares | Live |