| J&K OPTOTEC CO., LIMITED | Private company limited by shares | Live |
| OPTOTEC HONG KONG LIMITED | Private company limited by shares | Dissolved |
| OPTOTEC MATERIALS CO., LIMITED | Private company limited by shares | Live |
| OPTOTECH ASIA LIMITED | Private company limited by shares | Live |
| CHINA OPTOTECH COMPANY LIMITED | Private company limited by shares | Live |
| DANA OPTOTECH LIMITED | Private company limited by shares | Live |
| EVER SHINING OPTOTECH COMPANY LIMITED | Private company limited by shares | Live |
| JTU OptoTech (Hong Kong) Co. Limited | Private company limited by shares | Dissolved |
| JIMEI OPTOTECH LIMITED | Private company limited by shares | Live |
| HOEOO OPTOTECH (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| WISE OPTOTECH LIMITED | Private company limited by shares | Live |