An An is the youngest of father 12 children, and his family is rich. His mother is Chinese Thai (Fujian). According to Ann's own description, she inherited her China tradition from her grandmother whose surname is Liu. An An studied in England in his early years, and studied law in Dewei College and Trinity College of Cambridge University successively, graduating with 1955.

Anan worked in the diplomatic service for 23 years and served as Thailand's ambassador to the United Nations, Canada, the United States and West Germany. 1976 was appointed as the Permanent Secretary of the Ministry of Foreign Affairs in June, which played a leading role in ensuring the withdrawal of US troops from Thailand. After the coup in 10 that year, Anan was accused by the military of being a * * * person and was persecuted politically. These allegations were not ruled out until Thailand and People's Republic of China (PRC) (China) normalized diplomatic relations. 1979, An An left the institution and became an unemployed person. Became the vice chairman of Saha-United Group, 199 1 was promoted to chairman. He has been a director of Siam Commercial Bank since 1984.