| SING KWAN MANPOWER LIMITED | Private company limited by shares | Live |
| SING KWAN PHARMACEUTIC CO (HK) LIMITED | Private company limited by shares | Dissolved |
| SING KWAN TRADING LIMITED | Private company limited by shares | Live |
| Kwan Tai Sing trading company Limited | | Live |
| KWAN SING WATCH-CASE FACTORY LIMITED | Private company limited by shares | Live |
| Sing Laam Trading Co., Limited | Private company limited by shares | Live |
| WAH SING LABELS LIMITED | Private company limited by shares | Live |
| WING SING LABELS & ACCESSORIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| WAH SING LACE COMPANY LIMITED | Private company limited by shares | Live |
| SING LI LACE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sing Li Lace International Company Limited | Private company limited by shares | Live |
| LAIKONG SING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING LAKE INVESTMENT LIMITED | Private company limited by shares | Live |
| SIU SING LAMP COMPANY LIMITED | Private company limited by shares | Dissolved |
| FAI SING LAMPS COMPANY, LIMITED | Private company limited by shares | Dissolved |
| WAH SING LAMPS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SING LAND LIMITED | Private company limited by shares | Dissolved |
| HANG SING LAND COMPANY, LIMITED | Private company limited by shares | Dissolved |
| TAT SING LAND INVESTMENT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| HOI SING LAND INVESTMENT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| SING WO LAND INVESTMENT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| SING KA LAND INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING NAN LAND INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| TAT SING LAND INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| SING CHUNG LAND INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| Sing Through the Land Limited | Company limited by guarantee | Live |
| SING TAT GARMENT & LAUNDRY LIMITED | Private company limited by shares | Dissolved |
| SING TAT LAU'S BUS COMPANY LIMITED | | Live |
| Learn to Sing Limited | Private company limited by shares | Live |
| Leong Sing Limited | | Live |
| LET'S SING INTERNATIONAL (OPTICAL) LIMITED | Private company limited by shares | Live |
| SING LEUNG COMPANY LIMITED | Private company limited by shares | Dissolved |
| LEUNG SING KEE COMPANY LIMITED | Private company limited by shares | Live |
| KAM SING LEVELING CO. LIMITED | Private company limited by shares | Live |
| NGAI LICK SING ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| LIEN SING ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| LIENG SING COMPANY LIMITED | Private company limited by shares | Live |
| KONG SING LIGHTING LIMITED | Private company limited by shares | Live |
| SING LIGO LIMITED | Private company limited by shares | Live |
| LIHK SING INNOVATION LIMITED | Private company limited by shares | Live |
| SING LINK COMPANY LIMITED | Private company limited by shares | Dissolved |
| Yiu Sing Tobacco & Liquor Trading Limited | | Live |
| KUNG SING LAND INVESTMENT AND LOAN COMPANY, LIMITED -THE- | Private company limited by shares | Dissolved |
| SING TO LOGISTIC COMPANY LIMITED | Private company limited by shares | Live |
| SING SAI HK LOGISTIC LIMITED | Private company limited by shares | Live |
| Fook Sing Logistic Limited | Private company limited by shares | Live |
| Sing Tak International Logistic Limited | Private company limited by shares | Live |
| SING SAI SINO HK LOGISTIC LIMITED | Private company limited by shares | Live |
| SAN SING LONG LIMITED | Private company limited by shares | Dissolved |
| Long Sing Sing Limited | Private company limited by shares | Dissolved |
| Long Sing Limited | Private company limited by shares | Live |
| SING LONG CORPORATION LIMITED | Private company limited by shares | Live |
| SING TAI LOONG LIMITED | Private company limited by shares | Dissolved |
| SING LOONG LIMITED | Private company limited by shares | Live |
| HAI SING LOONG INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| YUEN LOONG SING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING LORD COMPANY LIMITED | Private company limited by shares | Dissolved |
| YUK SING (LO'S) COMPANY LIMITED | Private company limited by shares | Dissolved |
| LOK SING L.P. GAS LIMITED | Private company limited by shares | Live |
| LUCKY SING COMPANY LIMITED | Private company limited by shares | Dissolved |
| LUCKY SING LIMITED | Private company limited by shares | Live |
| LULU SING LIMITED | Private company limited by shares | Live |
| SING LUNG LIMITED | Private company limited by shares | Dissolved |
| Lung Sing Limited | Private company limited by shares | Live |
| SING LUNG 41 LIMITED | Private company limited by shares | Live |
| SING LUNG 42 LIMITED | Private company limited by shares | Live |
| SING LUNG 43 LIMITED | Private company limited by shares | Live |
| SING LUNG LIMITED | Private company limited by shares | Live |
| Yuk Sing Lung Company Limited | | Live |
| Tin Lung Sing Company Limited | | Live |
| LUNG SING COMPANY LIMITED | | Live |
| SING LUNG CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| LUNG SING ELECTRONIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| HON SING LUNG ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SING LUNG INTERNATIONAL LIMITED | Private company limited by shares | Live |
| LUNG SING INTERNATIONAL LIMITED | Private company limited by shares | Live |
| LUNG SING INVESTMENT (HK) LIMITED | Private company limited by shares | Dissolved |
| Lung Sing Investment International Limited | Private company limited by shares | Live |
| HOP SING LUNG OYSTER SAUCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| LUNG SING PLASTIC MFY LIMITED | Private company limited by shares | Live |
| TAK SING CONSTRUCTION MACHINERIES COMPANY LIMITED | Private company limited by shares | Live |
| NAN SING MACHINERY LIMITED | Private company limited by shares | Live |
| KO SING MACHINERY COMPANY LIMITED | Private company limited by shares | Dissolved |
| KIN SING MACHINERY LIMITED | Private company limited by shares | Dissolved |
| MING SING MACHINERY LIMITED | Private company limited by shares | Dissolved |
| SING TAO MAGAZINE LIMITED | Private company limited by shares | Live Ceased dormancy on 01-Mar-2003 |
| WAI SING MAGNETIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| YAT SING MAGNETICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| KO SING MANAGEMENT COMPANY LIMITED | Private company limited by shares | Live |
| LEE SING MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| WAH SING MANAGEMENT LIMITED | Private company limited by shares | Live |
| HOI SING MANAGEMENT CO. LIMITED | Private company limited by shares | Dissolved |
| YAU SING MANAGEMENT LIMITED | Private company limited by shares | Live |
| Sing Management Limited | | Live |
| LONG SING MANAGEMENT (AGENT) LIMITED | Private company limited by shares | Dissolved |
| DAH SING M & G ASSET MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| FU SING BANQUET MANAGEMENT LIMITED | Private company limited by shares | Live |
| Yee Sing Catering Management Limited | Private company limited by shares | Live |
| On Sing Asset Management (China) Limited | Private company limited by shares | Live |
| SING KING INVESTMENT MANAGEMENT CO., LIMITED | Private company limited by shares | Live |