Environmental groups worry that the Don Sahong dam could devastate fisheries that provide a major source of food for Cambodians living along the Mekong and Tonle Sap rivers.
The forest of Preah Rorka sits at the confluence of three districts, covering 90,000 hectares, and tribes in the area rely on the forest for their livelihoods.
Lao officials say they are conducting the project transparently and with the proper safeguards.
World Wide Fund for Nature calls proposed Don Sahong dam a 'recipe for disaster'.
Representatives of 17 different groups say the Hoang Anh Gia Lai company, which received funding from the bank’s International Finance Corporation, devastated forest lands affecting up to 2,000 families.
Seventeen different groups joined in the complaint, claiming the Hoang Anh Gia Lai rubber company had destroyed forestry lands affecting as many as 2,000 families.
Public service announcement discourages purchase of tiger bone paste, used to treat joint problems and believed to improve sexual performance.
The proposed dam project is planned for later this year, despite challenges from environmentalists and Cambodian and Vietnamese governments.
Supporters of the 17 hill tribe groups from northeastern Cambodia say they believe the complaint will meet World Bank standards for review.
Security forces razed some 300 cottages of villagers in two provinces Thursday, lighting them on fire and kicking out their occupants in reserved forest areas.
The IFC has invested in the company, Hoang Anh Gia Lai, which the groups say is responsible for damaging their culture, livelihoods, lands, forests and other natural resources.
Members of the Kuoy hill tribe say they want the companies, Rui Feng and Lan Feng, to relinquish some 7,000 hectares of land that where granted by the government as part of 18,000 hectares in concessions.