| SINO FULL LIMITED | Private company limited by shares | Live |
| KO SING PAWNSHOP LIMITED | Private company limited by shares | Dissolved |
| SINOKEY E & M LIMITED | Private company limited by shares | Dissolved |
| GRANT SINO LIMITED | Private company limited by shares | Dissolved |
| SINO KING ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINO-OCEAN INVESTMENT HOLDING LIMITED | Private company limited by shares | Dissolved |
| SINOLEX INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINO METAL LIMITED | Private company limited by shares | Live |
| SINO FORTUNE INVESTMENT ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINO CONNECT LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SINO INDUSTRIAL INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO DAY LIMITED | Private company limited by shares | Live |
| SINO-OCEAN BUSINESS HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SKY SINO LIMITED | Private company limited by shares | Live |
| SINOMAX LIMITED | Private company limited by shares | Dissolved |
| SINO-PAC APPAREL LIMITED | Private company limited by shares | Dissolved |
| SHING SING (HONG KONG) INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| SINWON INDUSTRIAL (H.K.) COMPANY LIMITED | Private company limited by shares | Live |
| SINO-JP INTERNATIONAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINO (HK - CHINA) LIMITED | Private company limited by shares | Dissolved |
| SINO ELECTRONICS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG WING SING LIMITED | Private company limited by shares | Live |
| SINCERE FRIENDSHIP COMPANY LIMITED | Private company limited by shares | Dissolved |
| Taiwan Pak Sing Shares Limited | Private company limited by shares | Live |
| SINO AHEAD DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| SINOBRIDGE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINO FINE INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GREAT SINO INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINO LOYAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| WAN SING INT'L INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| MEGA SINO INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED SINO LIMITED | Private company limited by shares | Dissolved |
| SINO PERSPECTIVES MANUFACTURING LIMITED | Private company limited by shares | Live |
| SINO H.K. CREATION LIMITED | Private company limited by shares | Dissolved |
| ASIA SINO MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| TOTAL SINO LIMITED | Private company limited by shares | Live |
| SINO RICH INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| GAIN SINO INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINOTRANS (HONG KONG) INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| SINO VISTA SYSTEMS COMPANY LIMITED | Private company limited by shares | Live |
| SINHAI SHIPPING LIMITED | Private company limited by shares | Dissolved |
| SINO WEALTHY LIMITED | Private company limited by shares | Live |
| SINO-UNION CONTRACTOR LIMITED | Private company limited by shares | Live |
| SINO MAPLE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| HIP SING TOYS (HK) LIMITED | Private company limited by shares | Dissolved |
| CHINA SINO INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SUN SING INDUSTRIAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINO TACHEN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO ORIENT (H.K.) LIMITED | Private company limited by shares | Dissolved |
| WAI LIK SING TRADING LIMITED | Private company limited by shares | Live |
| EXCEL SINO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINCO ELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| SINO WELL INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| CORPORATE SINO LIMITED | Private company limited by shares | Dissolved |
| SUPER SINO TRADING LIMITED | Private company limited by shares | Dissolved |
| HONG KONG JIN SING PRINTING COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA SINOESSE INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| VIEW SINO OIL LIMITED | Private company limited by shares | Dissolved |
| SINOLINK INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| KA SING CONSULTANCY COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING WO TOUR BUS MANAGEMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| JAY SINCERE LIMITED | Private company limited by shares | Live |
| SINO LEADER TRADING LIMITED | Private company limited by shares | Live |
| MILLION SINO INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| TUNG SING INDUSTRIAL (H.K.) CO., LIMITED | Private company limited by shares | Dissolved |
| SINJE COMPANY LIMITED | Private company limited by shares | Live |
| SINO VENTURE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO WAVE LIMITED | Private company limited by shares | Dissolved |
| SINO GROUP ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SINO GROUP TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO STAR (CHINA) LIMITED | Private company limited by shares | Dissolved |
| SINAL TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SINO RICH INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| HONG SING TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO CENTURY ELECTRONICS TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| FOREVER SINO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| BEST SINO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SING WAI METAL WORKS FACTORY LIMITED | Private company limited by shares | Dissolved |
| SINO-OCEAN PROPERTY LIMITED | Private company limited by shares | Dissolved |
| SINO PACIFIC CAPITAL GROUP LIMITED | Private company limited by shares | Dissolved |
| M SINO TRADING LIMITED | Private company limited by shares | Dissolved |
| SINOWIDE TRADING (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| SINO MATRIX TRADING LIMITED | Private company limited by shares | Dissolved |
| SINOCEM LIMITED | Private company limited by shares | Live |
| SINO GROUP TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINO MILLION LIMITED | Private company limited by shares | Live |
| SINO GROUP INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| RICH SINO FAR EAST LIMITED | Private company limited by shares | Dissolved |
| SINO WEALTH INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SEI SING HK LIMITED | Private company limited by shares | Dissolved |
| SINOPOWER ELECTRONICS LIMITED | Private company limited by shares | Live |
| SINO-SOUTH ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SINO CHEER & SINO CENTURY LIMITED | Private company limited by shares | Dissolved |
| SINO-KIWI SHIPPING LIMITED | Private company limited by shares | Dissolved |
| SINOWELL PACIFIC LIMITED | Private company limited by shares | Dissolved |
| SINOSTAR PACIFIC LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SINO-OIL INTERNATIONAL TRADE CO., LIMITED | Private company limited by shares | Dissolved |
| GROUP SINO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO WIN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SING CHUEN ENGINEERING LIMITED | Private company limited by shares | Dissolved |