Updated with explanation for departure.
Incheon International Airport confirms that company chief executive Dr. Jung Chang-soo resigned effective 3 March.
A spokeswoman confirmed the resignation in an email to Flightglobal. She says he left the company to "serve the country in a further role - provincial elections."
Jung served in the role for less than 12 months, with his appointment occurring on 20 June 2013.
Prior to joining Incheon, Jung was vice-minister for land, transportation, and maritime affairs.
The spokeswoman did not provide details on the airport’s succession plans.