| MASSTECH INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| MASSTECH INTERNATIONAL LIMITED | Private company limited by shares | Live |
| MASSTECH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| MASSTELL LIMITED | Private company limited by shares | Dissolved |
| MASSTEX LIMITED | Private company limited by shares | Dissolved |
| MASSTEX INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| MassThinker Innovation Limited | | Live |
| MASSTHINKING SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MASSTO LIMITED | Private company limited by shares | Dissolved |
| MASSTO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| MASSTON LIMITED | Private company limited by shares | Dissolved |
| MASSTON LIMITED | Private company limited by shares | Live |
| MASSTON DEVELOPMENT LIMITED | Private company limited by shares | Live |
| MASSTON HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| MASSTON INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| MASSTON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| MASSTON DESIGN & PRINTING LIMITED | Private company limited by shares | Dissolved |
| MASSTONE LIMITED | Private company limited by shares | Dissolved |
| MASSTONE COMPANY LIMITED | Private company limited by shares | Live |
| MASSTONE CREATION LIMITED | Private company limited by shares | Dissolved |
| MASSTOP ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| MASSTRADE INVESTMENT LIMITED | Private company limited by shares | Live |
| MASS-TRADING INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| MASSTRANS LIMITED | Private company limited by shares | Dissolved |
| MASSTRONG LIMITED | Private company limited by shares | Live |
| MASSUCCESS LIMITED | Private company limited by shares | Live |
| MASSUNION LIMITED | Private company limited by shares | Dissolved |
| MASS-UNION LIMITED | Private company limited by shares | Dissolved |
| MASSUSE LIMITED | Private company limited by shares | Live |
| Massv Limited | Private company limited by shares | Live |
| MASSVAST COMPANY LIMITED | Private company limited by shares | Dissolved |
| MASSWAY LIMITED | Private company limited by shares | Dissolved |
| MASSWAY LIMITED | Private company limited by shares | Dissolved |
| MASSWAY ASIA LIMITED | Private company limited by shares | Live |
| MASSWAY ELECTRONICS LIMITED | Private company limited by shares | Live |
| MASSWAY INDUSTRIAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| MASSWAY ASIA INVESTMENT LIMITED | Private company limited by shares | Live |
| MASSWAY PACIFIC LIMITED | Private company limited by shares | Dissolved |
| MASSWAY PROPERTIES LIMITED | Private company limited by shares | Live |
| MASSWAY SHIPPING CO. LIMITED | Private company limited by shares | Dissolved |
| MASSWAY SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Massway Technology Limited | Private company limited by shares | Live |
| MASSWEALTH TRADING LIMITED | Private company limited by shares | Live |
| MASSWELL LIMITED | Private company limited by shares | Dissolved |
| MASSWELL CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| MASSWELL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| MASSWELL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| MASSWELL ENTERPRISES LIMITED | Private company limited by shares | Live |
| MASSWELL HOLDINGS (GROUP) LIMITED | Private company limited by shares | Dissolved |
| MASSWELL TECHNOLOGY (HONGKONG) LIMITED | Private company limited by shares | Live |
| MASSWELL INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| MASSWELL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| MASSWELL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| MASSWELL INTERNATIONAL (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| MASSWELL INVESTMENTS LIMITED | Private company limited by shares | Live |
| MASSWELL LOGISTICS LIMITED | Private company limited by shares | Live |
| MASSWELL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| MASSWICK LIMITED | Private company limited by shares | Dissolved |
| MASSWIDE COMPANY LIMITED | Private company limited by shares | Live |
| MASSWIDE CONSULTANCY LIMITED | Private company limited by shares | Live |
| MASSWIDE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| MASSWIDE INVESTMENT LIMITED | Private company limited by shares | Live |
| MASSWIDE RESOURCES LIMITED | Private company limited by shares | Dissolved |
| MASSWIDE SECRETARIAL LIMITED | Private company limited by shares | Live |
| MASSWIN LIMITED | Private company limited by shares | Live |
| MASSWIN I LIMITED | Private company limited by shares | Live |
| MASSWIN II LIMITED | Private company limited by shares | Live |
| MASSWIN III LIMITED | Private company limited by shares | Live |
| MASSWIN IV LIMITED | Private company limited by shares | Live |
| MASSWIN V LIMITED | Private company limited by shares | Live |
| MASSWIN VI LIMITED | Private company limited by shares | Live |
| Masswin VII Limited | Private company limited by shares | Live |
| MASSWIN ENTERPRISES LIMITED | Private company limited by shares | Live |
| MASSWIN INVESTMENT LIMITED | Private company limited by shares | Live |
| MASSWITS INVESTMENT (CHINA) LIMITED | Private company limited by shares | Dissolved |
| MASSWORLD MARITIME LIMITED | Private company limited by shares | Dissolved |
| MASSWORLD SHIPBROKERS LIMITED | Private company limited by shares | Dissolved |
| MASSY LIMITED | Private company limited by shares | Dissolved |
| MASSY ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| MASSZA COSMETIC LIMITED | Private company limited by shares | Live |
| MAST LIMITED | Private company limited by shares | Live |
| MAST UK LIMITED | Private company limited by shares | Dissolved |
| MAST LIMITED | | Live |
| TOP ASIA MAST LIMITED | Private company limited by shares | Live |
| Mast Asia Limited | Private company limited by shares | Live |
| MAST CAPITAL LIMITED | Private company limited by shares | Live |
| FRIENDS OF MAST LIMITED | Public company limited by shares | Live |
| MAST STRATEGIC HEADQUARTER LIMITED | Private company limited by shares | Live |
| MAST ANIMAL HEALTH CENTRE LIMITED | Private company limited by shares | Live |
| Mast Business Solutions Limited | | Live |
| MAST TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MAST CREATIVE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Mast Trading Limited | Private company limited by shares | Live |
| Masta & Company Limited | Private company limited by shares | Live |
| MASTA DESIGN CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| MASTA (H.K.) TRADING & GARMENTS LIMITED | Private company limited by shares | Live |
| Masta Tsang Lou Mei Limited | Private company limited by shares | Live |
| MASTABAS LIMITED | Private company limited by shares | Dissolved |
| MASTAN COMPANY LIMITED | Private company limited by shares | Live |
| Mastapiece Technology Limited | Private company limited by shares | Live |