| Symbol | Name | Country | Exchange |
|---|---|---|---|
| ERG | Eneco Refresh Limited | AU | ASX |
| ENPRF | Current Water Technologies Inc | US | OTC |
| MWTCF | Manila Water Company, Inc | US | OTC |
| OWUV | One World Universe Inc | US | OTC |
| WTAF | Wataire Industries Inc | US | OTC |
| WTII | Water Technologies Intl Inc | US | OTC |
| 300272 | Shanghai Canature Environmental | CN | SHE |
| 8383 | Chen Full International Co Ltd | TW | TWO |