Ofice of the Secretariat in Phnom Phenh (OSP) 567 National Road, #2, Chak Angre Krom, P.O.Box 623, Phnom Penh, Cambodia Tel : (855-23) 425 353 Fax : (855-23) 425 363 Ofice of the Secretariat in Vientiane (OSV) Ofice of the Chief Execuive Oficer 184 Fa Ngoum Road P.O. Box 6101, Vientiane, Lao PDR Tel : (856-21) 263 263 Fax : (856-21) 263 264 Mekong River Commission Cambodia Lao PDR Thailand Viet Nam