Dak Ba HP was undertaken on the Dak Ba stream (locally known as Dak Bua), which is a level 1 line of the Dakdrinh River’s upstream that belongs to Son Bua and Son Mua communes, Son Tay district, Quang Ngai province, with Bach Thien Loc Joint Stock Company (a unit with 100% capital of Vinaconex Corporation) as the investor, Vinaconex as the general contractor.