| 1957 & Co. (SSL) Limited | Private company limited by shares | Live |
| S.S.L. ILLUMINATION (H.K.) LIMITED | Private company limited by shares | Live |
| S.S.L. INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| SSL-EUROPA HK LIMITED | Private company limited by shares | Live |
| HK SS-LIGHT TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SSLJ Technology Information Co., Limited | Private company limited by shares | Live |
| SSLPAY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SSLYPARTNER (INTERNATIONAL) CO., LIMITED | Private company limited by shares | Live |