| Sapphire Photonics Company Limited | Private company limited by shares | Live |
| PHOTONICS SEMICONDUCTOR CO., LIMITED | Private company limited by shares | Live |
| SICUBE PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| Soing Photonics Limited | | Live |
| FOR Photonics Sourcing Limited | Private company limited by shares | Dissolved |
| Photonics Sourcing Limited | Private company limited by shares | Live |
| PHOTONICS SOURCING HK LIMITED | Private company limited by shares | Live |
| Summit Photonics Limited | Private company limited by shares | Live |
| Photonics Tech Limited | Private company limited by shares | Live |
| ASTRI PHOTONICS TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| PHOTONICS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| DK PHOTONICS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| LUY Photonics Technology Limited | Private company limited by shares | Live |
| HK Dongwei Photonics Technology Co., Limited | Private company limited by shares | Live |
| Eternal Photonics Technology Limited | Private company limited by shares | Live |
| FASO PHOTONICS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ZHONLAN PHOTONICS TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| TEJING PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| TEOSCO PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| TOPVIEW PHOTONICS LIMITED | Private company limited by shares | Live |
| TRANSTECH PHOTONICS LIMITED | Private company limited by shares | Dissolved |
| HK Ultraritter Photonics Co., Limited | | Live |
| UNIVERSAL PHOTONICS HONG KONG LIMITED | Private company limited by shares | Live |
| Univision Photonics Technology Limited | Private company limited by shares | Live |
| WORLD LINK PHOTONICS LIMITED | Private company limited by shares | Live |
| Wyrowski Photonics Limited | Private company limited by shares | Live |
| XESTON PHOTONICS COMPANY LIMITED | Private company limited by shares | Live |
| Yongshun Photonics Technology (HK) Co., Limited | Private company limited by shares | Dissolved |