The following nine provinces comprise the Tonle Sap Basin. Currently, there are many different development projects being undertaken. These projects are being done by various partners and cover a wide range of development goals throughout these 9 provinces..

Banteay Meanchey Province

Battambang Province

Kampong Chhnang Province

Kampong Thom Province

Krong Pailin Province

Otdar Meanchey Province

Preah Vihear Province

Pursat Province

Siem Reap Province