| HK Steel Technology Limited | Private company limited by shares | Live |
| STEEL TECHNOLOGY SRL LIMITED | | Live |
| BABYLON STEEL STRUCTURE TECHNOLOGY SERVICE COMPANY LIMITED | Private company limited by shares | Dissolved |
| China steel Roll Technology Com Limited | Private company limited by shares | Live |
| TEMA STEEL LIMITED | Private company limited by shares | Dissolved |
| Xuzhou Teng Long Steel Structure Technology Company Limited | | Live |
| TENSON STEEL LIMITED | Private company limited by shares | Dissolved |
| TEXUNA STEEL LIMITED | Private company limited by shares | Dissolved |
| STEEL THAI COMPANY LIMITED | Private company limited by shares | Live |
| THAI STEEL TRADING HK LIMITED | | Live |
| THAI VIEW STEEL LIMITED | Private company limited by shares | Dissolved |
| THOMSON STEEL COMPANY LIMITED | Private company limited by shares | Live |
| THUNDERS STAINLESS STEEL CO., LIMITED | Private company limited by shares | Live |
| TIANHONG STEEL LIMITED | Private company limited by shares | Live |
| TIANHONG STEEL (HONG KONG) LIMITED | Private company limited by shares | Live |
| TIANNUO STEEL TRADING CO., LIMITED | Private company limited by shares | Live |
| TIANRUI STEEL CO., LIMITED | Private company limited by shares | Live |
| TIANXIANG SPECIAL STEEL Co., LIMITED | | Live |
| TIARA STEEL FURNITURE COMPANY LIMITED | Private company limited by shares | Dissolved |
| STEEL TIGER CO., LIMITED | Private company limited by shares | Live |
| STEEL TIGER HOLDING LIMITED | Private company limited by shares | Live |
| TOBEE STEEL LIMITED | Private company limited by shares | Live |
| KAM TONG STEEL COMPANY LIMITED | Private company limited by shares | Live |
| ADVANCED STEEL & TOOLS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOUTH CHINA STEEL & TOOLS SUPPLIERS LIMITED | Private company limited by shares | Dissolved |
| TOPAZ STEEL TRADING CO., LIMITED | Private company limited by shares | Live |
| Topwell Steel Limited | Private company limited by shares | Live |
| TOSHIN STEEL WORKS LIMITED | Private company limited by shares | Dissolved |
| TOUT STEEL LIMITED | Private company limited by shares | Live |
| Toyar Steel Limited | Private company limited by shares | Live |
| STEEL ART TRADE COMPANY LIMITED | Private company limited by shares | Live |
| Top Steel Trade Limited | Private company limited by shares | Live |
| SOP STEEL TRADE LIMITED | Private company limited by shares | Live |
| STEEL TRADE COMPANY LIMITED | Private company limited by shares | Live |
| SINO WORLD MINERALS & STEEL INTERNATIONAL TRADE LIMITED | Private company limited by shares | Live |
| Wenzhou Steel Trade Co Limited | Private company limited by shares | Dissolved |
| PACIFIC ASIA STEEL TRADERS LIMITED | Private company limited by shares | Dissolved |
| HONG KONG STEEL TRADERS ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| AC STEEL & TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| AME STEEL TRADING LIMITED | Private company limited by shares | Live |
| KDG Steel Trading Company Limited | Private company limited by shares | Live |
| TW Steel HK Trading Limited | Private company limited by shares | Live |
| BK Steel Trading Limited | Private company limited by shares | Live |
| EURO ASIA STEEL TRADING LIMITED | Private company limited by shares | Dissolved |
| STEEL CHINA TRADING LIMITED | Private company limited by shares | Dissolved |
| CHINA STEEL AND METALS TRADING LIMITED | Private company limited by shares | Dissolved |
| FRIEND WELL STEEL TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| EVERGREAT STEEL TRADING LIMITED | Private company limited by shares | Live |
| STEEL FAIR TRADING LIMITED | Private company limited by shares | Dissolved |
| STEEL FLOURISH TRADING LIMITED | Private company limited by shares | Dissolved |
| Galaxy Steel Trading Company Limited | Private company limited by shares | Live |
| GAMBIT STEEL TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| STEEL WAY GENERAL TRADING LIMITED | Private company limited by shares | Live |
| WISE GLOBAL STEEL TRADING LIMITED | Private company limited by shares | Dissolved |
| HK GOLD STEEL TRADING LIMITED | Private company limited by shares | Live |
| GRAET FORTUNE STEEL TRADING LIMITED | Private company limited by shares | Live |
| HONG KONG HUA XING STEEL TRADING LIMITED | Private company limited by shares | Dissolved |
| CNT IRON AND STEEL TRADING COMPANY LIMITED | Private company limited by shares | Live |
| LOONG SIN LRON STEEL TRADING LIMITED | Private company limited by shares | Live |
| Marago Steel Trading Limited | Private company limited by shares | Live |
| Mazz Steel Trading Company Limited | Private company limited by shares | Live |
| ORIENTAL STEEL TRADING LIMITED | Private company limited by shares | Live |
| PEIDA STEEL TRADING LIMITED | | Live |
| POWER STEEL TRADING CO. LIMITED | Private company limited by shares | Live |
| SINOTOP IRON & STEEL TRADING LIMITED | Private company limited by shares | Live |
| TUNG YAT STEEL TRADING LIMITED | Private company limited by shares | Live |
| STEEL WELL TRADING CO., LIMITED | | Live |
| WELLING STEEL TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TRANS PACIFIC STEEL COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG STEEL TRAWLER DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| FULL TREASURE STEEL (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| TREASURE STEEL STRUCTURES LIMITED | Private company limited by shares | Live |
| Treasures Steel Limited | Private company limited by shares | Live |
| TRILLION STEEL COMPANY LIMITED | Private company limited by shares | Live |
| True As Steel Limited | Private company limited by shares | Live |
| TRUMEX STEEL LIMITED | | Live |
| CHINA INTERNATIONAL SPECIAL STEEL TUBE MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| HAICHENG DENFIELD STEEL TUBE COMPANY LIMITED | Private company limited by shares | Dissolved |
| HENGYANG STEEL TUBE HOLDING LIMITED | Private company limited by shares | Dissolved |
| KINGBEST (CHINA) STEEL TUBE LIMITED | Private company limited by shares | Dissolved |
| XINYUAN STEEL TUBE MANUFACTURING CO., LIMITED | Private company limited by shares | Live |
| HANG TUNG ALUMINIUM STEEL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| WU TUNG STEEL FABRICS COMPANY LIMITED | Private company limited by shares | Live |
| TUNG WAH STEEL MECHANICAL LIMITED | Private company limited by shares | Live |
| TUNG WING STEEL COMPANY LIMITED | Private company limited by shares | Dissolved |
| TYTON STAINLESS STEEL GROUP LIMITED | Private company limited by shares | Live |
| UNIBROS STEEL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Steel Union Gym Limited | Private company limited by shares | Live |
| ASIA STEEL UNION CO., LIMITED | Private company limited by shares | Live |
| STEEL UNION METAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| STEEL UNION METAL TRADING COMPANY LIMITED | Private company limited by shares | Live |
| UNIRISE STEEL LIMITED | Private company limited by shares | Dissolved |
| UNITE STEEL LIMITED | Private company limited by shares | Live |
| UNITED STEEL LIMITED | Private company limited by shares | Dissolved |
| United Steel Limited | Private company limited by shares | Dissolved |
| CHINA UNITED IRON AND STEEL LIMITED | Private company limited by shares | Live |
| NEWLAND UNITED IRON & STEEL (H.K) CO., LIMITED | Private company limited by shares | Live |
| STEEL UNITED SHIPPING LIMITED | Private company limited by shares | Live |
| UNIVERSAL ALUMINIUM & STEEL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL STEEL DRAFTING CO., LIMITED | Private company limited by shares | Live |