TTW participated in the opening ceremony of the Provincial Waterworks Authority Region 3's (PWA Region 3) volunteer project in honor of His Majesty the King's birthday in 2026.

On July 22, 2026, the Provincial Waterworks Authority Region 3 (PWA Region 3), together with the Provincial Waterworks Authority Kanchanaburi Branch (PWA Kanchanaburi Branch), organized the “PWA Volunteer Spirit Project in Honor of His Majesty the King, 2026” at the Monument to the Supreme Patriarch at Wat Thewasangharam, Ban Nuea Subdistrict, Mueang District, Kanchanaburi Province. This was to express loyalty and gratitude for His Majesty the King's benevolence on the auspicious occasion of his 74th birthday on July 28, 2026, and to continue, preserve, and expand upon His Majesty's royal initiatives.

This project reflects the excellent cooperation between the Provincial Waterworks Authority, government agencies, the private sector, and local people in creating public awareness and uniting efforts to care for and maintain the community's water resources and environment for sustainable growth.