An exile rights group says seating Laos on 47-member panel would have been ‘most unfortunate’ in view of the country's record.
A leaked report by the environmental group WWF shows timber imports by China and Vietnam greatly exceed Lao exports.
They say regulations should not be bent for residents of Laos' largest trading partner.
They are telling Cambodia, Vietnam and Thailand that building work on the Don Sahong dam will begin by year-end.
Rights groups see official concern over the open discussion of politically sensitive subjects.
Bounthanh Thammavong is serving a nearly five-year prison sentence in Laos for criticizing the government online.
A diplomatic source says Lao-born expat did not have access to legal assistance.
They want government leaders to seek a rate lower than three percent on the U.S. $500 million loan.