| H.L.T Limited | Private company limited by shares | Live |
| HLTAONI INTERNATIONAL ELECTRICIAN (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| HLT(China) Limited | | Live |
| HLTD (HK) LIMITED | | Live |
| HLTD INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| HLTECH INDUSTRY (HONG KONG) LIMITED | Private company limited by shares | Live |
| HL-TEK LIMITED | Private company limited by shares | Live |
| HLTG LIMITED | Private company limited by shares | Live |
| HLT(H.K.) Limited | Private company limited by shares | Live |