| SUNG KAY COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNG YIK COMPANY LIMITED | Private company limited by shares | Live |
| MEE SUNG COMPANY LIMITED | Private company limited by shares | Dissolved |
| HOI SUNG COMPANY LIMITED | Private company limited by shares | Dissolved |
| TIN SUNG COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNG FAI COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHI SUNG COMPANY LIMITED | Private company limited by shares | Live |
| SUNG LI COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNG WAN COMPANY LIMITED | Private company limited by shares | Live |
| SUNG KIT COMPANY LIMITED | Private company limited by shares | Dissolved |
| POK SUNG COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNG YU COMPANY LIMITED | Private company limited by shares | Dissolved |
| Y K SUNG LIMITED | Private company limited by shares | Live |
| HWA SUNG COMPANY LIMITED | Private company limited by shares | Live |
| NAM SUNG LIMITED | Private company limited by shares | Live |
| SUNG HAN LIMITED | Private company limited by shares | Dissolved |
| SAN SUNG LIMITED | Private company limited by shares | Dissolved |
| SUNG DA LIMITED | Private company limited by shares | Dissolved |
| SUNG WAI LIMITED | Private company limited by shares | Dissolved |
| SUNG JIN LIMITED | Private company limited by shares | Dissolved |
| SUNG MIN COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNG HAO COMPANY LIMITED | Private company limited by shares | Dissolved |
| YUE SUNG COMPANY LIMITED | Private company limited by shares | Live |
| Sung Woo Limited | Private company limited by shares | Dissolved |
| SUNG NAM COMPANY LIMITED | Private company limited by shares | Live |
| A HO SUNG CPA LIMITED | Private company limited by shares | Live |
| Woo Sung Company Limited | Private company limited by shares | Live |
| C21 Sung Cci Limited | Private company limited by shares | Live |
| SUNG TAK LIMITED | Private company limited by shares | Live |
| HK SUNG KEN LIMITED | Private company limited by shares | Live |
| SUNG LIM LIMITED | Private company limited by shares | Live |
| WO SUNG LIMITED | Private company limited by shares | Live |
| SUNG NAM Limited | Private company limited by shares | Live |
| SUNG HK LIMITED | Private company limited by shares | Live |
| Sung Yeh Limited | Private company limited by shares | Live |
| Sung Sung Limited | Private company limited by shares | Live |
| HO SUNG COMPANY LIMITED | Private company limited by shares | Live |
| SUNG LIMITED | Private company limited by shares | Live |
| IL SUNG LIMITED | | Live |
| Sung Nee Limited | | Live |
| KIM SUNG LIMITED | | Live |
| Yi Sung (2013) Company Limited | Private company limited by shares | Live |
| WAH SUNG (BROTHERS) COMPANY LIMITED | Private company limited by shares | Dissolved |
| BO SUNG CONDUCTOR (H. K.) LIMITED | Private company limited by shares | Live |
| SUNG DYNASTY LIMITED | Private company limited by shares | Dissolved |
| TAI SUNG EMBROIDERY COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNG YIP ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| WAH SUNG ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| A SUNG ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| SUNG KEE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SUNG KAI ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SIN SUNG ENTERPRISE LIMITED | Private company limited by shares | Live |
| SUN SUNG ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SUNG HOP ENTERPRISES LIMITED | Private company limited by shares | Live |
| SUN WAH SUNG ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HUA SUNG ENTERPRISES LIMITED | Private company limited by shares | Live |
| SUNG LIH ENTERPRISES LIMITED | Private company limited by shares | Live |
| YI SUNG ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sung Kee Enterprises Limited | Private company limited by shares | Live |
| FRED SUNG & COMPANY, LIMITED | Private company limited by shares | Dissolved |
| Sung Gang Limited | Private company limited by shares | Live |
| KIN SUNG HOLDING LIMITED | Private company limited by shares | Live |
| So Sung Holding Company Limited | Private company limited by shares | Live |
| TAI SUNG INVESTMENT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| SUNG CHI INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GAO SUNG INVESTMENT LIMITED | Private company limited by shares | Live |
| YEE SUNG INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Wa Sung Investment Limited | Private company limited by shares | Live |
| SUNG ON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SUNG HIP INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SUNG JUN JEWELRY COMPANY LIMITED | Private company limited by shares | Live |
| KIM SUNG JEWELRY LIMITED | Private company limited by shares | Live |
| SUNG KONG & CO. LIMITED | Private company limited by shares | Live |
| KONG SUNG COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNG LONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| Ming Sung Limited | | Live |
| KAI SUNG PAPERS COMPANY LIMITED | Private company limited by shares | Live |
| Tae Sung Resources Limited | Private company limited by shares | Dissolved |
| SUNG CHU FAT SHE, LIMITED | Company limited by guarantee | Dissolved |
| WOO SUNG SHIPPING & ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SHIU SUNG KAI COMPANY LIMITED | Company limited by guarantee | Dissolved |
| LAU SUNG TAK TONG & COMPANY LIMITED | Private company limited by shares | Live |
| MAN SUNG TONG ASIA LIMITED | | Live |
| Sung Sein Tong Company Limited | | Live |
| HK KA SUNG TRADE LIMITED | Private company limited by shares | Live |
| BWO SUNG IPM AND EXP TRADE LIMITED | | Live |
| SUNG (TAI WAI) HK LIMITED | | Live |
| XINE SUNG TRADE COMPANY LIMITED | Private company limited by shares | Live |
| YUEN AND SUNG COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNGAI BUDI (BROTHERS) TRADING LIMITED | Private company limited by shares | Dissolved |
| SUNGAI INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNGAIN COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNGAIN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SUNGALA LIMITED | Company limited by guarantee | Dissolved |
| Sungam Limited | Private company limited by shares | Live |
| SUNGAME TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SUNGANG TRADING (HK) LIMITED | Private company limited by shares | Dissolved |
| SUNGANG TRANSPORT (HK) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SHENZHEN SUNGANG ASSOCIATION LIMITED | Company limited by guarantee | Live |
| SHENZHEN SUNGANG WAREHOUSE ENTERPRISES (HK) LIMITED | Private company limited by shares | Dissolved |