Ch Karnchang Pcl / CK / dam construction projects / Dams / EGCO / Electricity Generating Authority of Thailand (EGAT) / Electricity Generating Pcl / environment / fisheries / Laos / Mekong river / Myanmar / PTT / PTT Pcl / rivers / South China Sea / State of the Basin Report / Thailand / Viraphonh Viravong / Xayaburi dam / Xayaburi Power Company