| SIOBHAN LIMITED | Private company limited by shares | Dissolved |
| SIOBHAN LIMITED | Private company limited by shares | Live |
| Sioco Trading Limited | Private company limited by shares | Live |
| SIOEYE LIMITED | Private company limited by shares | Live |
| SIOEYE (HONG KONG) LIMITED | Private company limited by shares | Live |
| SIOFA Limited | | Live |
| Siohon Noblelight Limited | Private company limited by shares | Live |
| ONG SIOK HUI ENTERPRISES, LIMITED | Private company limited by shares | Live |
| SIOM Limited | Private company limited by shares | Live |
| KA SION LIMITED | Private company limited by shares | Dissolved |
| SION GR LIMITED | Private company limited by shares | Live |
| SIONAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SIONDE TRADE LIMITED | | Live |
| SIONG WAH COMPANY LIMITED | Private company limited by shares | Dissolved |
| SIONG BEE COMPANY LIMITED | Private company limited by shares | Dissolved |
| KHO SIONG SAN FAMILY COMPANY LIMITED | Private company limited by shares | Dissolved |
| SIONG INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SIONG ONN (S.M.I.) COMPANY LIMITED | Private company limited by shares | Live |
| SHENZHEN SIONLIGHT TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SION-ROME RED DRAGON CHINA TOWN CO., LIMITED | Private company limited by shares | Live |
| HK SIONTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SION-UNION MATERIALS (HONGKONG) LIMITED | Private company limited by shares | Live |
| Education&Culture Association For Sion-US Univ. Exchange Limited | Private company limited by shares | Live |
| SIONWOD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| U.S.A. FEDERATION SIONYAER BIOLOGY TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Sioplast Company Limited | Private company limited by shares | Dissolved |
| Sior Furniture Co., Limited | Private company limited by shares | Live |
| Siory Entertainment Limited | | Live |
| SIOTECH LIMITED | Private company limited by shares | Live |
| SIOUX LIMITED | Private company limited by shares | Live |
| SIOUXIE LIMITED | Private company limited by shares | Live |
| JANGGUN SIOYAKKI LIMITED | Private company limited by shares | Live |