| Automation on Silicon Limited | Private company limited by shares | Live |
| KEUNG SING INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SINO-SHIPBROKING LIMITED | Private company limited by shares | Live |
| SITUO TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO GLOBAL INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| GLORIOUS SINO LIMITED | Private company limited by shares | Dissolved |
| SILICON TECHNOLOGY (HONGKONG) ELECTRONIC LIMITED | Private company limited by shares | Live |
| SINO RICH INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| CHINA SINO-TV CULTURE CO., LIMITED | Private company limited by shares | Dissolved |
| SIYUAN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINO HOUSE LIMITED | Private company limited by shares | Live |
| SINO FULL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINO ASIA GROUP LIMITED | Private company limited by shares | Dissolved |
| SINO PEOPLE LIMITED | Private company limited by shares | Dissolved |
| SIMPLE ONLINE BUSINESS LIMITED | Private company limited by shares | Live |
| JUSHI GROUP (HK) SINOSIA COMPOSITE MATERIALS COMPANY LIMITED | Private company limited by shares | Live |
| Sinventa Limited | Private company limited by shares | Live |
| SINO RICH HONG KONG INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO TEAM MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| SINCERE TACT LIMITED | Private company limited by shares | Live |
| AMPLE SIGHT LIMITED | Private company limited by shares | Live |
| SINCERE PRINTING MACHINERY COMPANY LIMITED | Private company limited by shares | Dissolved |
| SIMEC INDUSTRIES CO., LIMITED | Private company limited by shares | Live |
| Sing Shui (HK) Trading Company Limited | Private company limited by shares | Live |
| SIEMENS ELECTRIC APPLIANCE (SHANGHAI) INT'L LIMITED | Private company limited by shares | Dissolved |
| HONGKONG SIMPLE LIFE INT'L ENTERPRISES LIMITED | Private company limited by shares | Live |
| SIEMENS (CHINA) LIMITED | Private company limited by shares | Dissolved |
| SINO GIFT CO., LIMITED | Private company limited by shares | Live |
| SINO KING LIMITED | Private company limited by shares | Live |
| Man Sing Hi-Fi and Video Limited | Private company limited by shares | Live |
| SINO SIGHT LIMITED | Private company limited by shares | Live |
| SINO BIOTECH MINING LIMITED | Private company limited by shares | Live |
| ABLE SINO LIMITED | Private company limited by shares | Dissolved |
| SINO FINDER LIMITED | Private company limited by shares | Live |
| SING LUM KHUI COMPANY LIMITED | Private company limited by shares | Live |
| SINO FARMER FOUNDATION LIMITED | Company limited by guarantee | Live |
| SINO KINGSWAY TRADING LIMITED | Private company limited by shares | Live |
| SINO BEST (HONG KONG) LIMITED | Private company limited by shares | Live |
| SIEGER MULTI-MEDIA TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINO PROMISE CHINA LIMITED | Private company limited by shares | Live |
| SINCERE SKY LIMITED | Private company limited by shares | Live |
| SINO HARVEST INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SIFCAN COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED SIMSEN GLOBAL MARKETS LIMITED | Private company limited by shares | Live |
| OCEAN SINO LIMITED | Private company limited by shares | Dissolved |
| GERMANY SIDA TOOL GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| SIMUATE INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| JADE SINO LIMITED | Private company limited by shares | Live |
| SIMON S&T PARKS COMPANY LIMITED | Private company limited by shares | Live |
| SIGNAAL (CHINA) GROUP CO., LIMITED | Private company limited by shares | Live |
| SINO PASSION (CHINA) LIMITED | Private company limited by shares | Dissolved |
| SINO EMPIRE LIMITED | Private company limited by shares | Live |
| GRAND SINO INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINO ASIA INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINOINVEST (HK) GROUP LIMITED | Private company limited by shares | Live |
| Sino Energy High-tech Group Holding Limited | Private company limited by shares | Dissolved |
| SIEMENS ELECTRIC COM., LIMITED | Private company limited by shares | Dissolved |
| KAI SING ENGINEERING LIMITED | Private company limited by shares | Live |
| NGAI SING CONSTRUCTION CO., LIMITED | Private company limited by shares | Live |
| GOOD SINO INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO SHOES (HK) LIMITED | Private company limited by shares | Live |
| SING HEI COMPANY LIMITED | Private company limited by shares | Live |
| SINOTAIK LIMITED | Private company limited by shares | Live |
| SINO FORTUNE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BRIGHT SINO PACIFIC LIMITED | Private company limited by shares | Dissolved |
| SINOACE H.K. INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINO LONG QUAN MINE LIMITED | Private company limited by shares | Dissolved |
| SINO-CITY SHIPPING&TRADING (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| SINOVA LIMITED | Private company limited by shares | Dissolved |
| SINIKA ELECTRONICS (HK) CO., LIMITED | Private company limited by shares | Live |
| SIENAR LIMITED | Private company limited by shares | Live |
| SIMENZI LIGHT INDUSTRY GROUP (HK) LIMITED | Private company limited by shares | Dissolved |
| SINO VENTURE GROUP LIMITED | Private company limited by shares | Live |
| SINO GAIN CREATION LIMITED | Private company limited by shares | Dissolved |
| SICHUAN METAL CORP. LIMITED | Private company limited by shares | Dissolved |
| SINO BENEFIT TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO-RES PIPING INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| Sinarin Investment Limited | Private company limited by shares | Live |
| Silkroad Limited | Private company limited by shares | Dissolved |
| SIERRA CAPITAL LIMITED | Private company limited by shares | Dissolved |
| SICHUAN TEACHERS LIMITED | Company limited by guarantee | Live |
| SILBER BACH LIMITED | Private company limited by shares | Dissolved |
| MULTI SINO (HK) LIMITED | Private company limited by shares | Live |
| SICHUAN LESHAN JUFENG ELECTRICAL MACHINERY LIMITED | Private company limited by shares | Dissolved |
| SICON CORPORATION LIMITED | Private company limited by shares | Live |
| SINO ELITE EDUCATION INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| KAI SING TOYS LIMITED | Private company limited by shares | Dissolved |
| Siam Bay Designs Company Limited | Private company limited by shares | Dissolved |
| SKY SIGHT LIMITED | Private company limited by shares | Live |
| FOREVER SINO LIMITED | Private company limited by shares | Live |
| SHANGHAI RENMIN GROUP SIHE MECHANICAL LIMITED | Private company limited by shares | Dissolved |
| SINO CHARMING LIMITED | Private company limited by shares | Dissolved |
| SILBAR CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| SINOQUALIS LIMITED | Private company limited by shares | Live |
| SINOR INTERNATIONAL INDUSTRIES CO., LIMITED | Private company limited by shares | Dissolved |
| SOENG LUNG SING ELECTRIC (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| SIUFAI INTERNATIONAL (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| SINODYNA INVESTMENT LIMITED | Private company limited by shares | Live |
| Silicon Valley Dynamic Co., Limited | Private company limited by shares | Dissolved |
| SINOREST ENTERPRISE LIMITED | Private company limited by shares | Live |