| MASTER TONE LIMITED | Private company limited by shares | Live |
| MEGA OCEAN TONE LIMITED | Private company limited by shares | Dissolved |
| METRO TONE LIMITED | Private company limited by shares | Live |
| MIRACLE TONE LIMITED | Private company limited by shares | Live |
| MORE TONE LIMITED | Private company limited by shares | Dissolved |
| N.E.B. Tone Limited | Private company limited by shares | Live |
| Asia Tone Network Limited | Private company limited by shares | Live |
| NICE TONE LIMITED | Private company limited by shares | Live |
| NICE TONE LIMITED | Private company limited by shares | Live |
| OCEAN TONE LIMITED | Private company limited by shares | Live |
| ORIENT TONE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ORIENT TONE LIMITED | Private company limited by shares | Live |
| PACIFIC TONE LIMITED | Private company limited by shares | Live |
| GRAND TONE ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| RICH TONE PACIFIC LIMITED | Private company limited by shares | Live |
| SUN HANG TONE PAPER PRODUCTS COMPANY LIMITED | Private company limited by shares | Live |
| PARK TONE LIMITED | Private company limited by shares | Dissolved |
| PARK TONE LIMITED | Private company limited by shares | Dissolved |
| PEACEFUL TONE LIMITED | Private company limited by shares | Dissolved |
| PEAK TONE COMPANY LIMITED | Private company limited by shares | Dissolved |
| TONE PEAK YARN LIMITED | Private company limited by shares | Live |
| POWER TONE ENTERPRISES LIMITED | Private company limited by shares | Live |
| Rollin's Tone Production Limited | | Live |
| PROMISE TONE LIMITED | Private company limited by shares | Dissolved |
| T-ONE PROPERTIES LIMITED | | Live |
| POWER TONE PROPERTIES LIMITED | Private company limited by shares | Live |
| REACH TONE LIMITED | Private company limited by shares | Live |
| Rich Tone Capital Resources Limited | Private company limited by shares | Live |
| RICH TONE LIMITED | Private company limited by shares | Dissolved |
| RICH TONE LIMITED | Private company limited by shares | Dissolved |
| TONE RICH LIMITED | Private company limited by shares | Dissolved |
| RICH TONE LIMITED | Private company limited by shares | Live |
| RICH TONE CENTURY LIMITED | Private company limited by shares | Live |
| RICHLEAD TONE LIMITED | Private company limited by shares | Dissolved |
| ROYAL TONE COMPANY LIMITED | Private company limited by shares | Live |
| SHINING TONE LIMITED | Private company limited by shares | Live |
| Ocean Tone Shipping Limited | Private company limited by shares | Live |
| SILVER TONE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINIC TONE LIMITED | Private company limited by shares | Live |
| SMART TONE LIMITED | Private company limited by shares | Dissolved |
| SMOOTH TONE LIMITED | Private company limited by shares | Dissolved |
| SMOOTH TONE LIMITED | Private company limited by shares | Live |
| SMOOTH TONE LIMITED | Private company limited by shares | Live |
| Smooth Tone Electronic Limited | Private company limited by shares | Live |
| SMOOTH TONE (HK) LIMITED | Private company limited by shares | Live |
| SMOOTHLY TONE LIMITED | Private company limited by shares | Live |
| SOLAR TONE LIMITED | Private company limited by shares | Dissolved |
| Easy Tone Solutions Limited | Private company limited by shares | Live |
| SPEED TONE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| STABLE TONE LIMITED | Private company limited by shares | Live |
| SUCCESS TONE LIMITED | Private company limited by shares | Dissolved |
| SUCCESS TONE INC LIMITED | Private company limited by shares | Live |
| SUCCESS TONE LIMITED | Private company limited by shares | Live |
| SUNNY TONE LIMITED | Private company limited by shares | Live |
| SUNNY TONE LIMITED | Private company limited by shares | Live |
| SUPER TONE LIMITED | Private company limited by shares | Live |
| TONE SURPLUS LIMITED | Private company limited by shares | Live |
| SURPLUS TONE LIMITED | Private company limited by shares | Live |
| SURPLUS TONE FINANCE LIMITED | Private company limited by shares | Live |
| SWIFT TONE LIMITED | Private company limited by shares | Dissolved |
| TAKE TONE LIMITED | Private company limited by shares | Dissolved |
| TALENT TONE LIMITED | Private company limited by shares | Live |
| TARGET TONE LIMITED | Private company limited by shares | Live |
| TONE TEAM LIMITED | Private company limited by shares | Dissolved |
| Techi Tone HongKong Limited | | Live |
| CHINA TONE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| CHINA TONE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ETERNAL TONE TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| FUYIN TONE COMMUNICATION & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TELE TONE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| TONE TELECOMMUNICATIONS LIMITED -THE- | Private company limited by shares | Dissolved |
| CHEER TONE TONG CHILD CARE ASSOCIATION LIMITED | Private company limited by shares | Live |
| M. TONE TOYS HK LIMITED | Private company limited by shares | Dissolved |
| CHINA TONE TRADING LIMITED | Private company limited by shares | Dissolved |
| CHINA TONE INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| CENTRAL TONE TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| ELITE TONE TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| SMOOTH TONE TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| STAR TONE TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| SUNNY TONE TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| SWIFT TONE TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| AN ETERNAL TONE TRADING CO LIMITED | Private company limited by shares | Live |
| EVER TONE TRADING INVESTMENT LIMITED | Private company limited by shares | Live |
| FINE TONE TRADING LIMITED | Private company limited by shares | Live |
| FORTUNE TONE (H.K.) TRADING LIMITED | Private company limited by shares | Live |
| HING WIN TONE TRADING LIMITED | Private company limited by shares | Live |
| STAR TONE TRADING LIMITED | Private company limited by shares | Live |
| TRUE TONE TRADING LIMITED | Private company limited by shares | Live |
| WISE TONE TRADING LIMITED | Private company limited by shares | Dissolved |
| TRINITY TONE LIMITED | Private company limited by shares | Dissolved |
| TRIUMPHANT TONE COMPANY LIMITED | Private company limited by shares | Dissolved |
| True Tone Consultancy Limited | | Live |
| TSANG TONE LIMITED | Private company limited by shares | Live |
| VAST TONE LIMITED | Private company limited by shares | Dissolved |
| VAST TONE LIMITED | Private company limited by shares | Live |
| VAST TONE LIMITED | | Live |
| VENTURE TONE LIMITED | Private company limited by shares | Dissolved |
| VICTOR TONE LIMITED | Private company limited by shares | Live |
| VICTORY TONE LIMITED | Private company limited by shares | Live |
| WANG TONE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |