The fourth regional meeting on September 23, 2026 in Kampong Cham province with an expected attendance of 160 participants..

The event is scheduled to take place on October 26–27, 2026..

For 2026, the Sixth Water Conference and Exhibition will be held on October 26–27, 2026..

The third regional meeting on August 20, 2026 in Kampot province with an expected attendance of 150 participants..

The second regional meeting on July 16, 2026 in Battambang province with an expected attendance of 137 participants..

The first regional meeting on May 7, 2026 in Siem Reap province with an expected attendance of 112 participants..