A stricter policy has cut down on the partying and driven away the profits, they say.
Prominent civil society leader Sombath Somphone has been missing for more than eight months.
A plea by residents for a retaining wall cannot be met due to bad weather.
The zone’s centerpiece looks to draw Chinese investments to the cash-starved country.
Vietnam is concerned it will be dethroned as the top investor.
Dozens of families near the dam in northern Laos are affected after heavy rains.
Companies given tax-free quotas are bringing in extra fuel to sell on the local market, sources say.
Officials in the Lao capital warn residents of the development site not to sell.