| Skywall Trading Co., Limited | | Live |
| SKYWALL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| H.K. SKY-WALL SCIENCE TRADE GROUP LIMITED | Private company limited by shares | Dissolved |
| SKYWALL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SKYWALL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Skywall International Development Limited | Private company limited by shares | Live |
| SKYWALL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SKYWALL TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |