| SUMDA LIMITED | Private company limited by shares | Dissolved |
| SUMDA ELECTRONICS (H.K.) LIMITED | Private company limited by shares | Live |
| HONG KONG SUMDA TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SUMDA INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sumda Trading (Hongkong) Co., Limited | Private company limited by shares | Live |
| SUMDANCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUMDANCE INVESTMENT LIMITED | Private company limited by shares | Live |
| SumData Limited | Private company limited by shares | Live |