President Sang is scheduled to hold talks with President Ader, and meet with other senior Hungarian leaders.
He will also attend a Vietnam-Hungary business forum, visit a number of economic centres, and meet with representatives of the Vietnamese community in Hungary.
Shortly after Hungary, President Sang will fly to Denmark for a State-level visit at the invitation of Queen Margrethe II.
Vietnam wants to strengthen bilateral cooperation with Denmark in various areas, spanning economics, trade and investment, science-technology, climate change, energy, the environment, and green growth.
He will pay a courtesy visit to the Queen, hold talks with the Prime Minister, and meet with the parliamentary speaker and the mayor of Copenhagen.
He will also attend a Vietnam-Denmark business forum and visit a number of economic and education centres in Copenhagen.