| T&F Piping Limited | Private company limited by shares | Live |
| HK PIPING COMPANY LIMITED | Private company limited by shares | Live |
| PIPING HOT LIMITED | Private company limited by shares | Live |
| SF PIPING LIMITED | | Live |
| ASIA PIPING LIMITED | Private company limited by shares | Dissolved |
| PM PIPING CHINA COMPANY LIMITED | Private company limited by shares | Live |
| Georg Fischer Piping Systems Co., Limited | Private company limited by shares | Live |
| MAP PIPING MATERIALS CO., LIMITED | Private company limited by shares | Dissolved |
| PIPLEE PIPING SYSTEMS CO., LIMITED | Private company limited by shares | Live |
| SW PIPING SYSTEM CO., LIMITED | Private company limited by shares | Live |
| GERMANY BARRETT PIPING SYSTERM LIMITED | Private company limited by shares | Live |
| G-Tech Piping Company Limited | Private company limited by shares | Live |
| CHINA HONG KONG XIN RIFENG PIPING LIMITED | Private company limited by shares | Dissolved |
| GERMANY HURNE PIPING SYSTEM CO., LIMITED | Private company limited by shares | Live |
| Koppelaar Piping Limited | | Live |
| ROC MASTER PIPING SOLUTIONS LIMITED | Private company limited by shares | Live |
| SIGMA METALS AND PIPING SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| SINYUAN PIPING LIMITED | Private company limited by shares | Dissolved |
| YT Piping Technology Co. Limited | Private company limited by shares | Live |
| LUSHI PIPING&EQUIPMENT CO., LIMITED | Private company limited by shares | Live |