| Company Name | Type | Status |
|---|---|---|
| COMPOSTAR (HONG KONG) ELECTRONIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| COMPOSTAR (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Kam Yuk Feng Organic Waste Composting Limited | Private company limited by shares | Dissolved |
| Hong Kong Community Composting Limited | Private company limited by shares | Live |
| Safe Composting Technology Limited | Private company limited by shares | Live |