Lai Chau Hydropower Plant is a national key project built on the Da River in Nam Nhun District, Lai Chau Province. To implement the project, there are over 2,000 households, mainly ethnic minorities, who have to change their places of residence. Among them, there are 5 ethnic groups with very small population of La Hu, Lu, Mang, Cong and Si La ethnic groups which have been affected quite a lot by this resettlement process.