| SINO ASEAN FIDUCIARIES (HK) LIMITED | Private company limited by shares | Live |
| HK SING GEM INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO GARDEN INDUSTRIAL LIMITED | Private company limited by shares | Live |
| Ngai Sing Uni Company Limited | Private company limited by shares | Live |
| Sing Lik Yuen Company Limited | Private company limited by shares | Live |
| SINO BILLIONS TRADING LIMITED | Private company limited by shares | Live |
| WANG SING SENG LIMITED | Private company limited by shares | Dissolved |
| SINJA LIMITED | Private company limited by shares | Live |
| SINO GROUP INTERNATIONAL INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| Sino Tai Management Consulting Company Limited | Private company limited by shares | Live |
| SINO CULTURE (ASIA) LIMITED | Private company limited by shares | Live |
| SINO ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| SINOTRANS TRADING LIMITED | Private company limited by shares | Live |
| SINOEVE DRIVING JOB (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| SINO PIONEER CORPORATION LIMITED | Private company limited by shares | Live |
| GROUP SINO INVESTMENT LIMITED | Private company limited by shares | Live |
| GROUP SINO TRADING LIMITED | Private company limited by shares | Live |
| Sino Medallion Industrial Limited | Private company limited by shares | Live |
| BEST SINO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINGWANG INTERNATIONAL(HONGKONG)CO., LIMITED | Private company limited by shares | Live |
| PREMIER SINO TRADING LIMITED | Private company limited by shares | Live |
| Sinochariot Industry (HongKong) Co., Limited | Private company limited by shares | Live |
| Sino Animal Husbandry Investment Limited | Private company limited by shares | Dissolved |
| SINO DONGFENG HOLDING GROUP LIMITED | Private company limited by shares | Live |
| SINOWING INTERNATIONAL SHIPPING CO., LIMITED | Private company limited by shares | Live |
| SINO ORIENTAL CONSULTANTS LIMITED | Private company limited by shares | Live |
| SINREA GROUP CO., LIMITED | Private company limited by shares | Live |
| SING KWAN FASHION LIMITED | Private company limited by shares | Live |
| SINO-HK ENGINEERING LIMITED | Private company limited by shares | Live |
| SINGYES NEW MATERIALS (H.K.) COMPANY LIMITED | Private company limited by shares | Live |
| SINO-EUROPE COMMERCIAL TRADE CONSULTING CO., LIMITED | Private company limited by shares | Live |
| SINO-EUROPE INVESTMENT CONSULTING CO., LIMITED | Private company limited by shares | Live |
| Sindoo Limited | Private company limited by shares | Live |
| SINCERE BUSINESS LIMITED | Private company limited by shares | Live |
| Sino Construction Investment (HK) Limited | Private company limited by shares | Live |
| Unicorn Sino Travel (Hong Kong) Limited | Private company limited by shares | Live |
| SINO LEHWA INDUSTRY GROUP LIMITED | Private company limited by shares | Live |
| MILLION SINO TRADING LIMITED | Private company limited by shares | Live |
| SINOPOWER INTERTNATIONAL LIMITED | Private company limited by shares | Live |
| HONG SING RESOURCES LIMITED | Private company limited by shares | Live |
| HK CHEONG SING CATERING MANAGEMENT & INVESTMENT LIMITED | Private company limited by shares | Live |
| HK SINIAN ENTERPRISES CO., LIMITED | Private company limited by shares | Live |
| Sinosin HK Limited | Private company limited by shares | Live |
| YU LI SING LIMITED | Private company limited by shares | Live |
| SINOTAAK LIMITED | Private company limited by shares | Live |
| SINO METRO HOTEL GROUP LIMITED | Private company limited by shares | Live |
| Sino Aviation Solutions Co., Limited | Private company limited by shares | Live |
| HK SINGYU INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| WANG SING HONG COMPANY LIMITED | Private company limited by shares | Live |
| HK Sing Ring Electronics Co., Limited | Private company limited by shares | Live |
| SINGLE ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| SINFON INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| Hong Kong Sum Sing Limited | Private company limited by shares | Live |
| Hoi Sing Engineering (HK) Co., Limited | Private company limited by shares | Live |
| SINGHI JEWELS LIMITED | Private company limited by shares | Live |
| SINO DIGIT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINO FOREIGN TRADING LIMITED | Private company limited by shares | Live |
| HK HANG SING (INTERNATIONAL) ENERGY LIMITED | Private company limited by shares | Live |
| Sino Marine Outfitting Equipment Manufacturer Limited | Private company limited by shares | Live |
| Qingdao Sino Jewelry Co., Limited | Private company limited by shares | Live |
| Sing Wai Electrical Engineering Limited | Private company limited by shares | Live |
| SINO TOP ELITE INVESTMENT LIMITED | Private company limited by shares | Live |
| MEGA SINOTEC LIMITED | Private company limited by shares | Live |
| Sino Security Co., Limited | Private company limited by shares | Live |
| SINRG LIMITED | Private company limited by shares | Live |
| KAM FUNG (SINO) MONEY EXCHANGE LIMITED | Private company limited by shares | Live |
| TREASURE SINO LIMITED | Private company limited by shares | Live |
| WING SING CONSULTANCY CO., LIMITED | Private company limited by shares | Live |
| SINO CHARTER (HONG KONG) LIMITED | Private company limited by shares | Live |
| MAN SING MOTO LIMITED | Private company limited by shares | Live |
| SINAN GROUP LIMITED | Private company limited by shares | Live Commenced dormancy on 22-Dec-2015 |
| SINO TEDESCO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Sino-Oil Technology International Investment Co., Limited | Private company limited by shares | Live |
| GLOBAL SINO CORPORATION LIMITED | Private company limited by shares | Live |
| SINO PROFESSIONAL INC LIMITED | Private company limited by shares | Live |
| SINO RICHLY LIMITED | Private company limited by shares | Live |
| SINO SUNNY LIMITED | Private company limited by shares | Live |
| KA SING CHINA CO., LIMITED | Private company limited by shares | Live |
| Sing Feng Engineering Limited | Private company limited by shares | Live |
| SINO HY (HK) CO., LIMITED | Private company limited by shares | Live |
| SINO RAILWAY (TRUCKS) GROUP LIMITED | Private company limited by shares | Live |
| Sinoma Cement (Hong Kong) Investment Company Limited | Private company limited by shares | Live |
| TOP SINO INT'L TRAVEL LIMITED | Private company limited by shares | Live |
| HND SINO-HONGKONG LOGISTICS CO., LIMITED | Private company limited by shares | Live |
| SINO GAINER LIMITED | Private company limited by shares | Live |
| SINO WONDERFUL LIMITED | Private company limited by shares | Dissolved |
| KINGLAND (SINO) COMPANY LIMITED | Private company limited by shares | Live |
| CHINA SINGING BOWLS ASSOCIATION LIMITED | Private company limited by shares | Live |
| WIN SING CO., LIMITED | Private company limited by shares | Live |
| SINGULARITY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINO BIG TRADING LIMITED | Private company limited by shares | Live |
| SINO STAR FUND MANAGEMENT CO. LIMITED | Private company limited by shares | Live |
| Sino Excel Production Limited | Private company limited by shares | Live |
| SINO SCULPTURE HANDICRAFT CO., LIMITED | Private company limited by shares | Dissolved |
| SINOVISA LIMITED | Private company limited by shares | Live |
| SINO BIG INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO GREAT TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| SINO WEALTH TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| SINO SIGHT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO SPACE TRADING LIMITED | Private company limited by shares | Live |