Since the establishment of the first coastal economic zone of Chu Lai in 2003, 18 economic zones have been established along the coast of Vietnam. Three of those were established on the coast of Thanh - Nghe - Tinh in Nghi Son, Dong Nam and Vung Ang. They are considered a nucleus in promoting economic and social development along of the entire coast line, improving the ability to attract investment, laborers and effectively exploit the inherent advantages of Thanh - Nghe - Tinh.