| SINGS WORLD LIMITED | Private company limited by shares | Live |
| SINO ELITE EDUCATION GROUP LIMITED | Private company limited by shares | Live |
| WING SING JEWELLERY CO. LIMITED | Private company limited by shares | Dissolved |
| SINOINFO TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| Sino Capital Group HK Limited | Private company limited by shares | Live |
| SINO HUNDRED LIMITED | Private company limited by shares | Live |
| SINO BRAND MANAGEMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| Silverfur Enterprises Limited | Private company limited by shares | Live |
| SINO CHANCE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SILK MERCER SILK & FABRIC COMPANY LIMITED | Private company limited by shares | Live |
| BEST SINO GLOBAL LIMITED | Private company limited by shares | Dissolved |
| WISE SINO LIMITED | Private company limited by shares | Dissolved |
| Pure Silver HK Limited | Private company limited by shares | Live |
| SIMUCAD LIMITED | Private company limited by shares | Live |
| FOREIGN SILLER FUTURES LIMITED | Private company limited by shares | Dissolved |
| SINOSWED INVESTMENT CO., LIMITED | Private company limited by shares | Dissolved |
| SINOTEC DIGITAL CO., LIMITED | Private company limited by shares | Live |
| SINO GROUP LIMITED | Private company limited by shares | Live |
| SING FUNG PIECE GOODS CO., LIMITED | Private company limited by shares | Live |
| TOP SILVER LIMITED | Private company limited by shares | Live |
| SINOPOS INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| SINO WEALTH TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HONG KONG SINO HERO INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| Siwor Garment Co., Limited | Private company limited by shares | Live |
| SILHOUETTE ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| ETERNAL SIMPLICITY LIMITED | Private company limited by shares | Live |
| SINO FRIENDSHIP INT'L TRADING LIMITED | Private company limited by shares | Live |
| SINOPADY LIMITED | Private company limited by shares | Dissolved |
| Simple Trading Limited | Private company limited by shares | Live |
| HONG KONG SIHE INVESTMENT LIMITED | Private company limited by shares | Live |
| SICHUAN XINGBAISHENG CHEMICAL CO., LIMITED | Private company limited by shares | Dissolved |
| SING WAH INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| LUCKY SINO LIMITED | Private company limited by shares | Live |
| SISCO PROPERTIES LIMITED | Private company limited by shares | Live |
| SINO HORIZON LIMITED | Private company limited by shares | Dissolved |
| ARYAN SINO INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| GOLD SINO (H.K.) LIMITED | Private company limited by shares | Live |
| SINO DYNASTY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SIANA ASIA PACIFIC CO., LIMITED | Private company limited by shares | Live |
| SINUNT CO., LIMITED | Private company limited by shares | Live |
| SINLIN ELECTRONICS LIMITED | Private company limited by shares | Live |
| SIMPLE LIFE HOLDING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HAPPY SINO LIMITED | Private company limited by shares | Live |
| SINO PRIDE CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SINO RESOURCES IMPORT AND EXPORT COMPANY LIMITED | Private company limited by shares | Live |
| SING FUNG TECHNOLOGY CORPORATION LIMITED | Private company limited by shares | Live |
| SINGLIN IMPORTS & EXPORTS LIMITED | Private company limited by shares | Dissolved |
| SINOTEC INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| SIMPLE CONSULTING LIMITED | Private company limited by shares | Dissolved |
| SINO-LINK TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| SINO SALES AND SERVICE LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL SINO INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINOTOP SUPPLY CHAIN COMPANY LIMITED | Private company limited by shares | Live |
| SINO SUNWAY ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| SINOCOM GROUP LIMITED | Private company limited by shares | Dissolved |
| SINOVEA LIMITED | Private company limited by shares | Live |
| SINO FAME TRADING LIMITED | Private company limited by shares | Live |
| SINO HUGE LIMITED | Private company limited by shares | Dissolved |
| SAKSHAM TRANSPORT SIGNALS PRIVATE LIMITED | Private company limited by shares | Live |
| SIGNALING LIMITED | Private company limited by shares | Live |
| SIERRA ASIA HONG KONG, LIMITED | Private company limited by shares | Live |
| SICON EXPRESS (HK) LIMITED | Private company limited by shares | Live |
| SICON EXPRESS LINE LIMITED | Private company limited by shares | Live |
| Sinalaw Asia Pacific Limited | Private company limited by shares | Dissolved |
| SINOGLORY CORPORATION LIMITED | Private company limited by shares | Dissolved |
| CHINA SILK LIMITED | Private company limited by shares | Dissolved |
| KAM SING ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SINOTEX HK TRADING LIMITED | Private company limited by shares | Dissolved |
| LONG SINO LIMITED | Private company limited by shares | Live |
| SINO INTERNATIONAL PROCUREMENTS GROUP LIMITED | Private company limited by shares | Dissolved |
| SINO PEARL UNDERWRITERS LIMITED | Private company limited by shares | Live |
| SINOGEAR INVESTMENT LIMITED | Private company limited by shares | Live |
| Sinopet Limited | Private company limited by shares | Live |
| SILICONVIEW LIMITED | Private company limited by shares | Live |
| SIGMA PROTECH COMPANY LIMITED | Private company limited by shares | Live |
| Simplex Investments Limited | Private company limited by shares | Live |
| SICHUAN LUZHOU WINE INDUSTRY GROUP LIMITED | Private company limited by shares | Dissolved |
| SIERRA SHIPPING AND TRADING LIMITED | Private company limited by shares | Dissolved |
| U. Sing Glass Limited | Private company limited by shares | Dissolved |
| SINOTOUCH LIMITED | Private company limited by shares | Live |
| SINO GOOD TRADING LIMITED | Private company limited by shares | Dissolved |
| HANG SING ACCESSORIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| SIPTEC COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sing Ip Property Agency Limited | Private company limited by shares | Live |
| SILK CO., LIMITED | Private company limited by shares | Dissolved |
| SINNEX INVESTMENT LIMITED | Private company limited by shares | Live |
| YUE SING INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Red Signal Computer Co. Limited | Private company limited by shares | Live |
| YEE SING ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| STRONG SINO (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINGTEC SCIENCE TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING FAI INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINOVE INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| SINOTUNE CO., LIMITED | Private company limited by shares | Dissolved |
| SING MING TOURS LIMITED | Private company limited by shares | Live |
| KEI SING SCAFFOLDING CONSTRUCTION LIMITED | Private company limited by shares | Live |
| Sino Asia International Industrial Limited | Private company limited by shares | Live |
| SINO CHOICE LIMITED | Private company limited by shares | Live |
| SILICON SOLAR LIMITED | Private company limited by shares | Dissolved |
| ZHEJIANG SIGE ELECTRIC CO., LIMITED | Private company limited by shares | Dissolved |