 He first came to South Korea in 1995 to take up a new position as "chargé d'affaires" of the Uzbekistani embassy in Seoul, and was promoted to ambassador in 1999.By 2007, with the departure of El Salvadorean ambassador Alfredo Ungo, Fen became the dean of the diplomatic corps in South Korea.He departed from South Korea in August 2013, leaving the position of dean of the diplomatic corps to Harun Ismail of Brunei.