On November 30, 2021, with the last truck of stone dumped into the Nandu River, one of the 172 key water conservancy projects approved by the State Council for construction, Hainan Province’s "Twelfth Five-Year" key water conservancy project, the largest scale of projects currently under construction in Hainan The successful closure of the major water conservancy project, Nandu River Maiwan water conservancy project, and the successful closure of the project signifies that the project has entered the construction phase of the main project.Editor/Baohongying