PJT I (Perum Jasa Tirta I) and PT BDSN (PT Bajradaya Sentranusa) formed a joint team and visited Japan Water Agency. The joint team conducted Benchmarking tour from June 8 to 11, 2026. The team consisted of 13 members.
PJT I is the Indonesian public corporation responsible for water resources management in nine basin areas as of now, namely WS Brantas, WS Bengawan Solo, WS Jeratunseluna, WS Serayu Bogowonto , WS Toba Asahan, WS Parigi Poso, WS Pompengan Larona, WS Saddang and WS Bali Penida.
PT BDSN operates a Hydroelectric Power Plant in North Sumatra. The company partners with PJT I on water management, environmental stewardship, and social services within the WS Toba Asahan.
※WS (Wilayah Sungai : River Basin)
The purpose of the tour was to compare operation and maintenance of their dams and power plants to the ones in Japan.
| Date | Visited Places |
| June 8 | ① Japan Water Agency Head Office |
| June 9 | ② Nippon Koei Headquarters |
| June 10 | ③ Shimokubo Dam |
| June 11 | ④ Yagisawa Dam ⑤ Gunma Canal |
