| RUBYJET LIMITED | Private company limited by shares | Dissolved |
| RUBYKON Limited | Private company limited by shares | Live |
| Rubyleo Company Limited | Private company limited by shares | Live |
| RUBYMARK FINANCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| RUBYMARK INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| RUBYMAX LIMITED | Private company limited by shares | Dissolved |
| RUBYPINK LIMITED | Private company limited by shares | Live |
| RUBYPOND LIMITED | Private company limited by shares | Dissolved |
| RUBYROCK CAPITAL CO., LIMITED | Private company limited by shares | Live |
| Rubyrock Group Limited | Private company limited by shares | Live |
| RUBYSIDES COMPANY LIMITED | | Live |
| RUBYSTAR INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| RUBYTAN COMPANY LIMITED | Private company limited by shares | Dissolved |