Tan Siew San

Ms Tan was Singapore’s Ambassador to the Kingdom of Thailand from March 2012 to May 2019, and retired from the Singapore civil service in June 2019. She started her career as an analyst in the Ministry of Defence (“Mindef”) in 1974 and headed the Research department in Mindef from 1983 to 1995. Appointed Deputy Secretary (Policy) in Mindef in 1995, her area of responsibilities included strategic issues, defence relations, national education, military security and public affairs. She was appointed Deputy Secretary (Asia Pacific) in the Ministry of Foreign Affairs in October 2006, which appointment was held until her posting as Ambassador to Thailand in March 2012.