| Location | Bangkok, Thailand |
| Owner | Metropolitan Waterworks Authority |
| Employer | SUMMIT GRADE LTD., PART. |
| Main Contractor | SUMMIT GRADE LTD., PART. |
| Contract Period | 2021 - 2026 |
| Percentage Completed | On-going |
| Role | Sub Contractor |
| Project Detail | Water Tunnel Dia. 3.8 m., Length 5,150 m. Unit - Shaft 9A-1 Dia. 15 m., Total Height 88.79 m. - Shaft 9A-2 Dia. 12 m., Total Height 38.05 m. - Shaft 9A-3 Dia. 15 m., Total Hight 38.20 m. - Shaft 9A-4 Dia. 12 m., Total Hight 35.94 m. - Shaft 9A-5 Dia. 10 m., Total Hight 37.99 m. |
























