Mr Wong will be accompanied by his wife Ms Wong and Foreign Minister Vivian Balakrishnan, who made an official visit to Timor-Leste in July 2023.
During the visit, Mr Wong will also meet with members of the Singaporean community living in Timor-Leste at a reception in Dili.
Singapore has supported the development of Timor-Leste since before its independence in 2002. It was one of the first countries to contribute personnel to the Australian-led International Force in East Timor, a peacekeeping mission launched in August 1999.
Between 1999 and 2012, Singapore contributed more than 1,000 members of the Singapore Armed Forces, including medical teams and combat peacekeepers, as well as assets such as landing ships, tanks and helicopters, as part of international peacekeeping efforts.
The Singapore Police Force also contributed officers to the United Nations civilian police force and helped create the East Timor Police Service in 2000.
Singapore and Timor-Leste have also strengthened economic ties. In 2024, Singapore became Timor-Leste’s fifth largest trading partner. In 2025, Singapore’s main exports to Timor-Leste included mineral fuels and oils, machinery and mechanical devices, and dairy and animal products.
In Mr Wong’s absence, Deputy Prime Minister and Trade and Industry Minister Gan Kim Yong will act as prime minister.
The visit comes just over a week after President Tharman Shanmugaratnam expressed Singapore’s condolences on June 24 following the death of former Timor-Leste President Francisco Guterres.