| Symbol | Name | Country | Exchange |
|---|---|---|---|
| NOC | Northrop Grumman Corporation | US | NYSE |
| 000925 | UniTTEC Co Ltd | CN | SHE |
| 300137 | Hebei Sailhero Environmental | CN | SHE |
| 300140 | Cecep Environmental Protection Equipment Co Ltd | CN | SHE |
| 688296 | Zhejiang Heda Technology Co Ltd | CN | SHG |
| 300365 | Beijing Forever Technology Co Ltd | CN | SHE |