In the afternoon of 4 October 2019, Samdech Techo Hun Sen and his Vietnam’s counterpart H. E. Nguyen Xuan Phuc co-chair the Cambodia-Vietnam Conference on Investment and Trade Promotion, in Hanoi, Vietnam.

In the afternoon of 4 October 2019, Samdech Techo Hun Sen and his Vietnam's counterpart H. E. Nguyen Xuan Phuc co-chair the Cambodia-Vietnam Conference on Investment and Trade Promotion, in Hanoi, Vietnam.