| PIONEER METALS STEEL COMPANY LIMITED | Private company limited by shares | Dissolved |
| BAO STEEL PIPE LIMITED | Private company limited by shares | Live |
| CANGZHOU BEST STEEL PIPE CO., LIMITED | Private company limited by shares | Live |
| CANGZHOU JUNDE STEEL PIPE CO., LIMITED | Private company limited by shares | Live |
| WAH CHIT STEEL PIPE ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| CRO STEEL PIPE CO., LIMITED | Private company limited by shares | Live |
| BOSHEN STEEL PIPE CO., LIMITED | Private company limited by shares | Dissolved |
| CHANGJIANG STEEL PIPE (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| HuaLi Steel PiPe Co., Limited | | Live |
| One Steel Pipe Industries Co., Limited | Private company limited by shares | Live |
| INTEGRITY TONG STEEL PIPE CO., LIMITED | Private company limited by shares | Live |
| Steel Pipe East Limited | Private company limited by shares | Live |
| WEIFANG EAST STEEL PIPE CO., LIMITED | Private company limited by shares | Dissolved |
| LI FENG STEEL PIPE LIMITED | Private company limited by shares | Dissolved |
| GREAT CHINA STEEL PIPE COMPANY, LIMITED | Private company limited by shares | Dissolved |
| Chu Kong Steel Pipe Group Co. Limited | Private company limited by shares | Live |
| HeBei Abter Steel Pipe Co., Limited | | Live |
| HEBEI TAIFENG STEEL PIPE CO., LIMITED | Private company limited by shares | Dissolved |
| Xin Hua Wei Steel Pipe (HK) Limited | Private company limited by shares | Live |
| HONG KONG SAKAI STEEL PIPE COMPANY LIMITED | Private company limited by shares | Dissolved |
| HUIKE STEEL PIPE CO., LIMITED | Private company limited by shares | Dissolved |
| HWAWEN STEEL PIPE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Integrity Steel Pipe Co., Limited | Private company limited by shares | Live |
| LIDA STEEL PIPE (HONGKONG) LIMITED | Private company limited by shares | Live |
| LINYI JINZHENGYANG STEEL PIPE CO., LIMITED | Private company limited by shares | Live |
| LUBAO STEEL PIPE (HONGKONG) LIMITED | Private company limited by shares | Live |
| ZHONGHAI STEEL PIPE MANUFACTURING CO., LIMITED | Private company limited by shares | Live |
| Luchi Steel Pipe Manufacturing Co., Limited | Private company limited by shares | Live |
| CHEUNG KAY PLASTIC LINED STEEL PIPE MANUFACTURING COMPANY LIMITED | Private company limited by shares | Live |
| MAYER STEEL PIPE COMPANY LIMITED | Private company limited by shares | Dissolved |
| NORTHERN STEEL PIPE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SANLEY SPRIAL STEEL PIPE CO., LIMITED | Private company limited by shares | Dissolved |
| PZH SEAMLESS STEEL PIPE (HK) INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SHANDONG JINZHENG STEEL PIPE CO., LIMITED | | Live |
| SHANGHAI ZHONGXING STEEL PIPE CO. LIMITED | Private company limited by shares | Live |
| CANZGHOU SIKAI STEEL PIPE COMPANY LIMITED | Private company limited by shares | Live |
| UNITED CASING, STEEL AND PIPE LIMITED | Private company limited by shares | Dissolved |
| UNITED STEEL PIPE (HONGKONG) LIMITED | Private company limited by shares | Live |
| WEIFANG WEIERDA STEEL PIPE CO., LIMITED | Private company limited by shares | Live |
| Taicang Xinbaoyi Steel Pipe Manufacture Co., Limited | Private company limited by shares | Live |
| YANGZHOU YALIAN STEEL PIPE CO., LIMITED | Private company limited by shares | Dissolved |
| BURWILL STEEL PIPES LIMITED | Private company limited by shares | Live |
| KAVIISH STEEL PIPES CO., LIMITED | Private company limited by shares | Dissolved |
| WAH MAO STEEL PIPES FACTORY COMPANY LIMITED | Private company limited by shares | Dissolved |
| K & K STEEL PIPES MANUFACTURING LIMITED | Private company limited by shares | Live |
| DALI STEEL PIPING LIMITED | Private company limited by shares | Live |
| STEEL PLAN LIMITED | Private company limited by shares | Live |
| TIANJIN SEAMLESS STEEL PIPE PLANT CO., LIMITED | Private company limited by shares | Dissolved |
| TYT Steel Plate Co., Limited | Private company limited by shares | Live |
| SEKINE FLOOR STEEL PLATE (H.K.) CO., LIMITED | Private company limited by shares | Dissolved |
| KONG KEI STEEL PLATE EROSION AND CARVING ART FACTORY LIMITED | Private company limited by shares | Dissolved |
| SMC GUANG DONG HAN JING STEEL PLATE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI UNOBSTRUCTED STEEL PLATE LIMITED | Private company limited by shares | Live |
| STEEL POINT LIMITED | Private company limited by shares | Live |
| POLLY STEEL INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| PORTLAND STEEL LIMITED | Private company limited by shares | Live |
| POSCO STAINLESS STEEL CO., LIMITED | | Live |
| POWER STEEL COMPANY LIMITED | Private company limited by shares | Live |
| EXCELLENT POWER STEEL COMPANY LIMITED | Private company limited by shares | Live |
| HOWARD PRECISION STEEL COMPANY LIMITED | Private company limited by shares | Live |
| VSC Steel Processing Limited | Private company limited by shares | Live |
| Steel Processing Centre Limited | Private company limited by shares | Dissolved |
| GERMANY STEEL DOCTOR INTERNATIONAL HARDWARE PRODUCT LIMITED | Private company limited by shares | Live |
| KAM LEE STEEL PRODUCT & ENGINEERING LIMITED | Private company limited by shares | Live |
| EVERSHINE STEEL PRODUCT LIMITED | Private company limited by shares | Dissolved |
| PJ HARMONY STEEL PRODUCT COMPANY LIMITED | Private company limited by shares | Dissolved |
| ASIA UNITED STEEL PRODUCT CO., LIMITED | Private company limited by shares | Live |
| VSC STEEL PRODUCTS COMPANY LIMITED | Private company limited by shares | Live |
| USR STEEL PRODUCTS LIMITED | Private company limited by shares | Live |
| KVS STEEL PRODUCTS LIMITED | | Live |
| CHINA DRAGON STEEL PRODUCTS COMPANY LIMITED | Private company limited by shares | Live |
| HEBEI HAODI STEEL PRODUCTS LIMITED | Private company limited by shares | Live |
| RICHES STEEL PRODUCTS (CHINA) COMPANY LIMITED | Private company limited by shares | Live |
| NAT STAMPED STEEL PRODUCTS LIMITED | Private company limited by shares | Live |
| TONGSHENG STEEL PRODUCTS LIMITED | Private company limited by shares | Live |
| YU XING TOOL STEEL PRODUCTS (HK) LIMITED | Private company limited by shares | Dissolved |
| HANG OI STEEL PRODUCTS TRADING LIMITED | Private company limited by shares | Live |
| EPC STEEL PROJECT CO., LIMITED | Private company limited by shares | Live |
| Titan Steel Project & Trading Co., Limited | Private company limited by shares | Live |
| ASIA STEEL (PROPERTIES) LIMITED | Private company limited by shares | Live |
| PROSPERITY STEEL (ASIA) COMPANY LIMITED | Private company limited by shares | Live |
| Prosperity Steel Engineering Company Limited | Private company limited by shares | Live |
| PROSPERITY STEEL (HK) LIMITED | Private company limited by shares | Live |
| PROSPERITY IRON AND STEEL INVESTMENT LIMITED | Private company limited by shares | Live |
| JINING PROSPERITY PHOTOGRAPHY STAINLESS STEEL INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| Prosperity Steel United HK Limited | Private company limited by shares | Live |
| P.S. YAN STEEL COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG STEEL (PURCHASE) LIMITED | Private company limited by shares | Dissolved |
| QDPRF STEEL LIMITED | Private company limited by shares | Live |
| QDZN STEEL LIMITED | Private company limited by shares | Live |
| QIANGBANG STAINLESS STEEL FASTENERS CO., LIMITED | Private company limited by shares | Live |
| HK QING SHAN STEEL LIMITED | | Live |
| FOSHAN QIUJING STEEL LIMITED | Private company limited by shares | Live |
| QUALITY STEEL CO. LIMITED | Private company limited by shares | Dissolved |
| RADIANT STEEL LIMITED | | Live |
| Rapid Steel Investment Limited | Private company limited by shares | Live |
| Ace Fire Rated Glass Stainless Steel Engineering Company Limited | Private company limited by shares | Live |
| ZHEJIANG RAYCHEM STEEL INDUSTRY CO., LIMITED | | Live |
| RECARFORD IRON AND STEEL LIMITED | Private company limited by shares | Dissolved |
| Reego Steel Group Limited | | Live |