| 持股明細(資料日期：2025/05/30) |
| 持股名稱 | 比例 |
| Ferguson Enterprises Inc | 8.12% |
| Ecolab Inc | 7.81% |
| Roper Technologies Inc | 7.72% |
| Waters Corp | 6.35% |
| Xylem Inc/NY | 6.34% |
| Tetra Tech Inc | 4.74% |
| AECOM | 4.34% |
| Core & Main Inc | 4.25% |
| Pentair PLC | 4.16% |
| American Water Works Co Inc | 4.16% |
| Veralto Corp | 4.00% |
| A O Smith Corp | 3.83% |
| IDEX Corp | 3.68% |
| Advanced Drainage Systems Inc | 3.54% |
| Toro Co/The | 3.41% |
| Mueller Industries Inc | 3.20% |
| Itron Inc | 2.88% |
| Essential Utilities Inc | 2.49% |
| Badger Meter Inc | 2.47% |
| Watts Water Technologies Inc | 1.84% |
| Valmont Industries Inc | 1.74% |
| Zurn Elkay Water Solutions Corp | 1.71% |
| Mueller Water Products Inc | 1.37% |
| California Water Service Group | 0.79% |
| Franklin Electric Co Inc | 0.76% |
| Cia de Saneamento Basico do Estado de Sao Paulo SABESP ADR | 0.76% |
| American States Water Co | 0.74% |
| H2O America | 0.64% |
| Stantec Inc | 0.60% |
| Lindsay Corp | 0.47% |
| Middlesex Water Co | 0.37% |
| Energy Recovery Inc | 0.19% |
| Northwest Pipe Co | 0.14% |
| Gorman-Rupp Co/The | 0.11% |
| Consolidated Water Co Ltd | 0.11% |
| York Water Co/The | 0.10% |
| Artesian Resources Corp | 0.07% |
| Invesco Government & Agency Portfolio | 0.02% |
| Global Water Resources Inc | 0.02% |