| HONG KONG (CHINA) STEEL INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| TIAN JIN NO.1 STEEL GROUP (HONG KONG) CO., LIMITED | Private company limited by shares | Dissolved |
| RIZHAO STEEL HOLDING GROUP (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| HONG KONG STEEL UNION INDUSTRY GROUP CO., LIMITED | | Live |
| ZhuoYu Iron & Steel Group (Hong Kong)Co., Limited | Private company limited by shares | Live |
| GROWTH STEEL HONG KONG LIMITED | Private company limited by shares | Live |
| Hong Kong Li Hang Steel Limited | Private company limited by shares | Live |
| HONG WAH (HARBIN) STEEL COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG HEYE SPECIAL STEEL COMPANY LIMITED | Private company limited by shares | Live |
| TAI HING HONG STEEL COMPANY LIMITED | | Live |
| HONG KONG YAU HING ELECTRICAL STEEL & CORES LIMITED | Private company limited by shares | Live |
| WING HING (HONG KONG) STEEL COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG PAKNIK STEEL STRUCTURE HOUSING (INTERNATIONAL) LIMITED | Private company limited by shares | Dissolved |
| HUIDA STEEL HARDWARE HONG KONG INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| EVEREST STEEL INDUSTRIAL HONG KONG LIMITED | Private company limited by shares | Live |
| HONG KONG WALTON STEEL PIPE INDUSTRIAL LIMITED | Private company limited by shares | Live |
| PING STEEL HONG KONG INDUSTRY & TRADING COMPANY LIMITED | Private company limited by shares | Live |
| BRG IRON & STEEL HONG KONG LIMITED | Private company limited by shares | Live |
| Tangshan Jianyuan Steel Consultants (Hong Kong) Company Limited | Private company limited by shares | Dissolved |
| HONG KONG JINDER STEEL LIMITED | Private company limited by shares | Live |
| Jinhe Steel Products (Hong Kong) Limited | | Live |
| HONG KONG JULONG STEEL LIMITED | Private company limited by shares | Live |
| JF STEEL HONG KONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Hui Jie Steel & Co. Limited | Private company limited by shares | Live |
| Steel HQ (Hong Kong) Limited | Private company limited by shares | Dissolved |
| HONG KONG SUN STEEL CO LIMITED | Private company limited by shares | Dissolved |
| MSS STEEL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG NEW XIN STEEL DIE LIMITED | Private company limited by shares | Dissolved |
| Steel (Hong Kong) Limited | Private company limited by shares | Live |
| KAN KEE STEEL (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| AFRICAN STEEL HONG KONG LIMITED | Private company limited by shares | Dissolved |
| FU ZHUN STEEL (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| HONG KONG WING FUNG STEEL FURNITURE & DECORATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| MING FAI IRON & STEEL ENGINEERING (HONG KONG) LIMITED | | Live |
| YUEN FAT STEEL GEAR (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| Grand Steel (Hong Kong) Investment Limited | Private company limited by shares | Dissolved |
| CHONGQING IRON & STEEL (HONG KONG) CO. LIMITED | Private company limited by shares | Live |
| GERMANY PINPINYOU STEEL PRODUCTS (HONG KONG) INVESTMENT LIMITED | Private company limited by shares | Live |
| HECHUANG STEEL PRODUCTS (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| READYMADE STEEL HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SHUI SANG STEEL WORKS, LIMITED | Private company limited by shares | Dissolved |
| THOMSON STEEL HONG KONG LIMITED | Private company limited by shares | Live |
| WENJU LIGHT STEEL HOUSE (HONG KONG) LIMITED | Private company limited by shares | Live |
| MAANSHAN IRON & STEEL (HONG KONG) LIMITED | Private company limited by shares | Live |
| KONG WAI (HONG KONG) STEEL MANUFACTURER COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG STEEL MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| MARUBENI-ITOCHU STEEL HONG KONG LIMITED | Private company limited by shares | Live |
| HONG KONG FENG YE STEEL MATERIAL LIMITED | Private company limited by shares | Dissolved |
| HONG KONG AND KOWLOON STEEL AND METAL IMPORTERS AND EXPORTERS ASSOCIATION LIMITED | Company limited by guarantee | Live |
| HONG KONG STEEL (IRON MINE) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG PENSHAN STEEL COMPANY LIMITED | Private company limited by shares | Dissolved |
| PTS PRENTES STEEL & MILL TECHNOLOGIE HONG KONG LIMITED | Private company limited by shares | Dissolved |
| DEFU (HONG KONG) STEEL PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| RI XIN (HONG KONG) STEEL PRODUCTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG STEEL ROPES, LIMITED | Private company limited by shares | Dissolved |
| HONG KONG STEEL ROPES LIMITED | Private company limited by shares | Dissolved |
| Sage Special Steel (Hong Kong) Company Limited | Private company limited by shares | Dissolved |
| HONG KONG STEEL (SALES) LIMITED | Private company limited by shares | Dissolved |
| Sanrigor (Hong Kong) Steel Structure Limited | | Live |
| SEOKJIN STEEL (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| SHANGHAI NO. 5 STEEL GROUP (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SHAO JIA STEEL LIMITED | Private company limited by shares | Live |
| SOLLEN STEEL HONG KONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| STEEL SOLUTIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONG LEE STEEL SOUVENIR COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG HUNG SIU STAINLESS STEEL PRODUCTS LIMITED | Private company limited by shares | Live |
| STUDER STEEL (HONG KONG) LIMITED | Private company limited by shares | Live |
| TAIYO STEEL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| TANRON STAINLESS STEEL GROUP (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| TITAN STEEL TRADING (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Hong Kong MiaoShengdong Steel International Trade LIMITED | | Live |
| HONG KONG IRON & STEEL TRADING COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG DIE STEEL TRADING LIMITED | Private company limited by shares | Dissolved |
| HONG KONG STEEL TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG ZHEN XIANG STEEL TUBE LIMITED | Private company limited by shares | Live |
| UNITED STEEL PIPING (HONG KONG) LIMITED | | Live |
| Welmetal Steel (Hong Kong) Limited | | Live |
| Vornbaeumen Steel Wire Rope (Hong Kong) Limited | Private company limited by shares | Live |
| HONG KONG WOODEN AND STEEL FURNITURE IMPORTERS AND EXPORTERS ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| HONG KONG IRON & STEEL WORKS, LIMITED | Private company limited by shares | Dissolved |
| NANJING YEDE STEEL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| YOUNG HEUNG IRON AND STEEL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Hong Yuan Steel Holding Limited | | Live |
| YUANHANG STEEL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| ZHANGDIAN IRON AND STEEL (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| ZHENGJIE (HONG KONG) IRON & STEEL TRADING LIMITED | Private company limited by shares | Live |
| ZHONGRUI STEEL HONG KONG LIMITED | Private company limited by shares | Live |
| HONGAN STEEL STRUCTURE COMPANY LIMITED | Private company limited by shares | Live |
| WUXI HONGGESEN STAINLESS STEEL CO., LIMITED | | Live |
| IPC STEEL HONGKONG LIMITED | | Live |
| AMERICA STEEL GROUP HONGKONG LIMITED | Private company limited by shares | Dissolved |
| HONGKONG NORTH AMERICAN STEEL CO., LIMITED | Private company limited by shares | Dissolved |
| Chief Steel ( Hongkong) Trading Co., Limited | Private company limited by shares | Live |
| ET STEEL (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| ASIA (HONGKONG) STEEL CO., LIMITED | Private company limited by shares | Live |
| HONGKONG STEEL BRIDGE CO., LIMITED | Private company limited by shares | Live |
| FUYU STEEL (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| HONGKONG GUANYU STEEL CO., LIMITED | Private company limited by shares | Live |
| HONGKONG HONEST STEEL CO., LIMITED | Private company limited by shares | Live |
| HONGKONG HONGTAI STEEL CO., LIMITED | Private company limited by shares | Dissolved |