| 持股明細(資料日期：2024/05/31) |
| 持股名稱 | 比例 |
| Pentair PLC | 8.36% |
| Danaher Corp | 8.11% |
| Roper Technologies Inc | 7.82% |
| Nomura Micro Science Co Ltd | 7.50% |
| Geberit AG | 5.31% |
| Veolia Environnement SA | 4.30% |
| American Water Works Co Inc | 4.24% |
| Ecolab Inc | 4.13% |
| Xylem Inc/NY | 4.10% |
| Veralto Corp | 3.83% |
| Cia de Saneamento Basico do Estado de Sao Paulo SABESP | 3.53% |
| Severn Trent PLC | 3.33% |
| Kurita Water Industries Ltd | 3.08% |
| Waters Corp | 3.06% |
| Stantec Inc | 2.68% |
| Ebara Corp | 2.62% |
| Ferguson PLC | 2.42% |
| TOTO Ltd | 2.31% |
| Halma PLC | 2.15% |
| Spirax-Sarco Engineering PLC | 1.99% |
| IDEX Corp | 1.97% |
| A O Smith Corp | 1.87% |
| Advanced Drainage Systems Inc | 1.80% |
| Acciona SA | 1.70% |
| Organo Corp | 1.56% |
| Georg Fischer AG | 1.13% |
| Arcadis NV | 0.85% |
| Aalberts NV | 0.79% |
| Belimo Holding AG | 0.77% |
| Coway Co Ltd | 0.64% |
| Miura Co Ltd | 0.58% |
| Consolidated Water Co Ltd | 0.41% |
| China Lesso Group Holdings Ltd | 0.27% |
| Genuit Group PLC | 0.27% |
| China Water Affairs Group Ltd | 0.23% |
| METAWATER Co Ltd | 0.16% |
| Aguas Andinas SA | 0.13% |
| Grupo Rotoplas SAB de CV | 0.05% |