When was the second phase of Tian 'e Longtan Hydropower Station completed?

As of February 2, 2022, it has not yet been built.

By consulting the data, it is concluded that by February 2, 2022, the first phase of Tian 'e Longtan Hydropower Station has been completed, and the second phase has not yet been implemented. Due to the large submerged area and large number of immigrants in Longtan Phase II, the construction conditions of the project need to be studied and demonstrated, and the construction time is to be determined. Draw a conclusion from this.

Longtan Hydropower Station is located in the upper reaches of Tiane County, Guangxi, at 15km. It is a landmark project of power transmission from west to east and a key project of western development.