| Company Name | Type | Status |
|---|---|---|
| Haiguan Trading Co., Limited | Private company limited by shares | Live |
| Hong Kong Haiguan New Materials Holdings Company Limited | Public company limited by shares | Dissolved |
| Haiguan Electronics Technology (HongKong) Co., Limited | Private company limited by shares | Live |
| HAIGUANGXING LIMITED | Private company limited by shares | Live |