H.E. Mr. Sengphet Houngboungnuang presented the Letter of Credence to H.E. Mr. Nguyễn Phú Trọng, President of the Socialist Republic of Vietnam in 2019
Ambassador Sengphet Houngboungnuang took a courtesy visit to H.E. Mr. Vuong Dinh Hue, Chairman of the National Assembly of SR. of Vietnam