Hanoi, Jun 5 (Prensa Latina) Vietnamese Prime Minister Pham Minh Chinh left for Estonia on Thursday to pay the first official visit to that country since the establishment of diplomatic relations in 1992. This visit marks a milestone in bilateral ties and paves the way for a new phase of development through government and business channels, particularly in key areas of the 4th Industrial Revolution, as expressed by Vietnamese Ambassador to Finland, concurrently accredited to Estonia, Pham Thi Thanh Binh.