| Sint Maria Shipping Company Limited | | Live |
| SINTA LIMITED | Private company limited by shares | Live |
| SINTABOND LIMITED | Private company limited by shares | Dissolved |
| SINTAC LIMITED | Private company limited by shares | Live |
| SINTACK COMPANY, LIMITED | Private company limited by shares | Dissolved |
| SINTACK LIMITED | Private company limited by shares | Dissolved |
| SINTAIYOU GROUP INTERNATIONAL HOLDING LIMITED | Private company limited by shares | Live |
| SINTAN LIMITED | Private company limited by shares | Live |
| SINTAN SHIPPING CO., LIMITED | Private company limited by shares | Live |
| SINTAN KIMYA (HK) CO. LIMITED | Private company limited by shares | Dissolved |
| SINTANA TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SINTAO COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINTAO FILM DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HongKong Sintao Design Limited | Private company limited by shares | Dissolved |
| SINTASAM LIMITED | Private company limited by shares | Dissolved |
| SINTAU LIMITED | Private company limited by shares | Dissolved |
| Sinte Hong Kong Company Limited | Private company limited by shares | Live |
| SINTEC LIMITED | Private company limited by shares | Live |
| SINTEC HK Limited | Private company limited by shares | Live |
| SINTEC ASIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINTEC HOLDING CO., LIMITED | Private company limited by shares | Live |
| SINTEC CONSTRUCTION LIMITED | Private company limited by shares | Live |
| SINTEC CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| SINTEC DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SINTEC FINANCE LIMITED | Private company limited by shares | Dissolved |
| SINTEC GLASS MACHINERY CO., LIMITED | | Live |
| Sintec (HK) Investment Development Limited | Private company limited by shares | Dissolved |
| Hong Kong Sintec Trading Limited | Private company limited by shares | Live |
| Sintec Electronics Technology (Hongkong) Co., Limited | Private company limited by shares | Live |
| Sintec Industrial Co., Limited | Private company limited by shares | Live |
| SINTEC INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| SINTEC INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Sintec International Co., Limited | Private company limited by shares | Live |
| SINTEC INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINTEC METAL FABRICATION LIMITED | Private company limited by shares | Live |
| NISHIMATSU SINTEC CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| SINTEC PIPE REVIVING LIMITED | Private company limited by shares | Dissolved |
| SINTEC TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINTEC UPVC WINDOWS AND DOORS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINTECH ECC LIMITED | Private company limited by shares | Dissolved |
| SINTECH ASIA LIMITED | Private company limited by shares | Dissolved |
| SINTECH (ASIA) LIMITED | Private company limited by shares | Dissolved |
| AL SINTECH CAPITAL LIMITED | Private company limited by shares | Live |
| SINTEK DISPLAYS CO., LIMITED | | Live |
| SHENZHEN SINTEK DIGITAL CO., LIMITED | Private company limited by shares | Live |
| SINTEK ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINTEK (HK) MICROELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| HongKong Sintek Electronic Co., Limited | Private company limited by shares | Live |
| Sintek (Hongkong) Group Limited | Private company limited by shares | Live |
| HONGKONG SINTEK TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINTEK TRADING (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| SINTEK INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| SINTEK SEMICONDUCTOR LIMITED | Private company limited by shares | Live |
| SINTEL LIMITED | Private company limited by shares | Dissolved |
| SINTELOM (HK) TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| CCIC SINTER FRONTIER CO., LIMITED | Private company limited by shares | Live |
| SINTER INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| Dowin Sinter Co., Limited | Private company limited by shares | Live |
| HONG KONG SINTER METALS LIMITED | Private company limited by shares | Dissolved |
| SINTER INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| AURORAE SINTER METALS COMPANY LIMITED | Private company limited by shares | Dissolved |
| Launch Sinter Technology Co., Limited | Private company limited by shares | Dissolved |
| SINTER TRADE LIMITED | | Live |
| Sinterama Asia Limited | Private company limited by shares | Live |
| Sintering Trade Limited | | Live |
| SINTERRY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINTEX LIMITED | Private company limited by shares | Dissolved |
| SINTEX LIMITED | Private company limited by shares | Live |
| SINTEX (H K) LIMITED | Private company limited by shares | Live |
| Sintex Asia Limited | Private company limited by shares | Live |
| SINTEX (ASIA) LIMITED | Private company limited by shares | Live |
| SINTEX (CHINA) LIMITED | Private company limited by shares | Dissolved |
| SINTEX CREATION LIMITED | Private company limited by shares | Live |
| SINTEX WEALTH CREATION LIMITED | Private company limited by shares | Dissolved |
| SINTEX DEVELOP LIMITED | Private company limited by shares | Dissolved |
| GUANGZHOU SINTEX DYEING & PRINTING ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINTEX ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINTEX FASHION FACTORY LIMITED | Private company limited by shares | Dissolved |
| Sintex Fort Limited | Private company limited by shares | Live |
| Sintex Group Limited | | Live |
| SINTEX ASIA GROUP LIMITED | Private company limited by shares | Dissolved |
| SINTEX INVESTMENT (GROUP) LIMITED | Private company limited by shares | Live |
| SINTEX INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINTEX PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| SINTEX PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| SINTEX TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINTEZ LIMITED | Private company limited by shares | Live |
| SINTEZ CAPITAL LIMITED | Private company limited by shares | Live |
| SINTEZ GROUP LIMITED | | Live |
| SintezOil Limited | | Live |
| SINTHAIHUA (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINTIA LIMITED | Private company limited by shares | Dissolved |
| SINTIAN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINTO DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SINTO DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| SINTO International Company Limited | Private company limited by shares | Live |
| SINTO TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sinto Electronic Technology Co., Limited | Private company limited by shares | Live |
| SINTOC CO., LIMITED | | Live |
| SINTO-LED LIMITED | Private company limited by shares | Live |