| LONGDI LIMITED | | Live |
| HONG KONG LONGDI ENGINEERING CO., LIMITED | | Live |
| Longdi (Hong Kong) Limited | Private company limited by shares | Live |
| Longdi Industrial Limited | | Live |
| HK LONGDI SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK LONGDI ENVIRONMENTAL TECHNOLOGY INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| LONGDI HONGKONG TRADE CO., LIMITED | Private company limited by shares | Live |
| LONGDI TRADEING LIMITED | | Live |
| HK LONGDIAN BATHROOM GROUP LIMITED | Private company limited by shares | Live |
| LONGDICK LIMITED | Private company limited by shares | Dissolved |
| LONGDING ENTERPRISE LIMITED | Private company limited by shares | Live |
| LONGDISK TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| H.K. EAST LONG-DISTANCE INT'L PUBLISHING GROUP LIMITED | Private company limited by shares | Dissolved |
| LONGDIWEI INDUSTRIAL (HK) LIMITED | Private company limited by shares | Live |