| PROTON ABRASION RESISTANT PIPE COMPANY LIMITED | Private company limited by shares | Dissolved |
| NATRUL JOEL RESISTANT INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| CORROSION RESISTANT COMPOSITES LIMITED | Private company limited by shares | Dissolved |
| Resistant Technology (Hong Kong) Limited | Private company limited by shares | Live |
| CS Wear Resistant Material Co., Limited | Private company limited by shares | Live |
| HK Shengde Wear Resistant Material Limited | | Live |
| HK Wanpufu Wear Resistant Material Technology Limited | | Live |
| ASUWANT CHILD RESISTANT PACKAGING CO., LIMITED | Private company limited by shares | Live |
| Wantai Metallurgical Resistant Materials Limited | Private company limited by shares | Live |