| Sing Kai Hong Kong Limited | Private company limited by shares | Live |
| HONG KONG SING SUN LIMITED | Private company limited by shares | Live |
| We Sing (Hong Kong) Limited | Private company limited by shares | Live |
| Sing Sing Hong Kong Limited | Private company limited by shares | Live |
| SING NAM (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| SING YIN (HONG KONG) LIMITED | | Live |
| Sing Hin Hong Kong Limited | | Live |
| CHI SING HONG KONG COMPANY LIMITED | | Live |
| SING HOT HONG KONG LIMITED | | Live |
| V Sing Hong Kong Limited | | Live |
| Sing Yut Hong Kong Limited | | Live |
| SING YAT (HONG KONG) LIMITED | | Live |
| HONG KONG SING YUK LIMITED | | Live |
| Hong Kong Rui Sing Limited | | Live |
| Bowls That Sing (Hong Kong) Limited | | Live |
| CHUNG SING JITUAN (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Sing Dragon (Hong Kong) Limited | | Live |
| Sing Ming Six Eight (Hong Kong) Company Limited | Private company limited by shares | Live |
| SING HO EMERALD (HONG KONG) LIMITED | Private company limited by shares | Live |
| MING SING GROUP (HONG KONG) LIMITED | | Live |
| HANG SING ENTERPRISES (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HANG SING GROUP HONG KONG LIMITED | Private company limited by shares | Live |
| HANG SING TRANSPORTATION (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| Happy Sing Hong Kong Company Limited | Private company limited by shares | Live |
| SING HOME (HONG KONG) LIMITED | Private company limited by shares | Live |
| DON SING INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| DON SING INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| Ming Sing (Hong Kong) Investment Limited | Private company limited by shares | Live |
| NAN SING MARINE CORPORATION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| MING SING HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SING MING (HONG KONG) LIMITED | Private company limited by shares | Live |
| MING SING HONG PROPERTIES (HONG KONG) LIMITED | Private company limited by shares | Live |
| YUEN SING TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| YAU SING TRADE (HONG KONG) LIMITED | Private company limited by shares | Live |
| Ming Sing (Hong Kong) Trading Limited | | Live |
| TUNG SING ENTERPRISE (HONG KONG) LIMITED | Private company limited by shares | Live |
| TUNG SING INTERNATIONAL (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| Sing Tung International (Hong Kong) Limited | Private company limited by shares | Live |
| TUNG SING INTERNATIONAL (HONG KONG) COMPANY LIMITED | | Live |
| YUNG SING (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SING HONG KRAFT LIMITED | Private company limited by shares | Live |
| SING KUNG (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| KWAN SING SHOES (HONG KONG) LIMITED | Private company limited by shares | Live |
| SING HONG LAND INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| LONG SING HONG LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Sing Dai Yan Investment Management Limited | Private company limited by shares | Live |
| Sing Tat (Hong Kong) Investments Management Limited | Private company limited by shares | Live |
| SING FAI MANUFACTORY (HONG KONG) LIMITED | Private company limited by shares | Live |
| FUK SING HONG MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| YUN SING MATERIALS (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONG KONG NAM SING METAL MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG LUNG SING OPTICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| HOP SING HONG PAPER COMPANY LIMITED | Private company limited by shares | Dissolved |
| YEE SING HONG PETROLEUM CHEMICALS COMPANY LIMITED | Private company limited by shares | Live |
| SING KWONG HONG PETROLEUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| YEE SING HONG PETROLEUM PRODUCTS COMPANY LIMITED | Private company limited by shares | Live |
| SING PING (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONG KONG JIN SING PRINTING COMPANY LIMITED | Private company limited by shares | Dissolved |
| MING SING HONG PROPERTIES LIMITED | Private company limited by shares | Live |
| SING HONG ASSOCIATION REHABILITATION CENTRE LIMITED | Private company limited by shares | Live |
| HONG SING RESOURCES LIMITED | Private company limited by shares | Live |
| SING TECH (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SING KAM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Hong Kong Sing Mei Technology Co Limited | Private company limited by shares | Live |
| HONG KONG SING TAO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| LONG SING TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONG KONG TAK SING VSOUND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TEONG SING HIN (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| TIEN SING HONG INVESTMENTS CO., LIMITED | Private company limited by shares | Dissolved |
| SING YAN TONG (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG HANG SING TOYS COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG SING TRADING LIMITED | Private company limited by shares | Dissolved |
| Sing Fai Hong Trading Limited | Private company limited by shares | Live |
| WUI SING HONG TRADING LIMITED | Private company limited by shares | Live |
| YAT SING HONG TRADING COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG CHEONG SING TRADING LIMITED | Private company limited by shares | Live |
| Hong Sing Trading (HK) Co., Limited | Private company limited by shares | Live |
| RI SING (HONG KONG) TRADING CO., LIMITED | Private company limited by shares | Live |
| KONG SING (HONG KONG) TRADING CO., LIMITED | Private company limited by shares | Live |
| Hong Kong Sing Wah Trading Co., Limited | | Live |
| HONG KONG SING TAT LIK INDUSTRY TRADING LIMITED | Private company limited by shares | Dissolved |
| SING HONG IN INTERNATIONAL TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG SING INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| SING FAI HONG KONG INT'L TRADING LIMITED | Private company limited by shares | Live |
| HUA SING (HONG KONG) TRADING INVESTMENT LIMITED | Private company limited by shares | Live |
| HONG KONG SING FAI TRADING LIMITED | Private company limited by shares | Dissolved |
| SING HEI TRADING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| YIK SING TRADING (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| GIC SING TRADING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| Hwa Sing Trading (Hong Kong) Limited | Private company limited by shares | Dissolved |
| Hong Kong Sing Tak Trading Company Limited | Private company limited by shares | Live |
| HONG KONG GAM SING TRADING LIMITED | Private company limited by shares | Dissolved |
| HONG KONG KAM SING KONG FAT TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SING ON HONG KONG TRADING LIMITED | Private company limited by shares | Live |
| YAT SING TRADING (HONG KONG) LIMITED | Private company limited by shares | Live |
| Sing Li Trading Hong Kong Limited | Private company limited by shares | Live |
| HONG KONG WO SING TRADING LIMITED | Private company limited by shares | Live |
| HONG KONG HOU SING TRADING LIMITED | Private company limited by shares | Live |
| Hong Kong Tak Sing Trading Limited | Private company limited by shares | Live |
| Hong Kong Ho Sing Trading Limited | Private company limited by shares | Live |